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Combining or distributing information via time channels

Subclass of:

370 - Multiplex communications

370310000 - COMMUNICATION OVER FREE SPACE

370328000 - Having a plurality of contiguous regions served by respective fixed stations

370329000 - Channel assignment

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
370337000 Multiple access (e.g., TDMA) 112
Entries
DocumentTitleDate
20130044735WIRELESS LOCAL AREA NETWORK ACCESS POINT SYSTEM BASED ON VIRTUAL ACCESS POINT SERVICE - A wireless local area network (WLAN) access point (AP) system is provided. The WLAN AP system includes a first virtual access point (VAP) that is logical entity performing communication with a first station (STA); and a second VAP performing communication with a second STA. The first VAP uses a first channel to exchange a frame with the first STA and the second VAP uses a second channel to exchange a frame with the second STA.02-21-2013
20130044736BASE STATION, COMMUNICATION SYSTEM, MOBILE STATION, AND COMMUNICATION METHOD - A base station includes a time-division-multiplexer that time-division-multiplexes control signals and data signals; a culling unit that culls from the signal time-division-multiplexed by the time-division-multiplexer, data signals temporally overlapping control signals of a neighboring cell; a transmitting unit that transmits the data signal culled by the culling unit; and a determining unit that determines conditions concerning the culling corresponding to transmission power of a portion temporally overlapping the control signals of the neighboring cell, in the signal transmitted by the transmitting unit. The culling unit culls the data signals based on a result obtained by the determining unit.02-21-2013
20110200019Methods and Nodes in a Wireless Communication System - Embodiments herein include a network node and a mobile station in a wireless communication system. Embodiments also include a method in the mobile station and a method in the network node. With particular regard to the method in the network node, the method schedules wireless transmissions between the network node and the mobile station. The method comprises obtaining a multi-slot class of the mobile station and determining a downlink Temporary Block Flow configuration. Further, the method comprises assigning uplink timeslots to the mobile station and associating each assigned uplink timeslot with a priority value, based on the downlink Temporary Block Flow configuration and the multi-slot class of the mobile station.08-18-2011
20090213818METHOD OF PERFORMING RANDOM ACCESS PROCEDURE IN WIRELESS COMMUNICATION SYSTEM - A method and device for performing contention resolution between a mobile communication terminal and a base station. The method according to an embodiment includes initiating a random access procedure by a medium access control (MAC) layer of the mobile communication terminal, including starting a contention resolution timer; and stopping the contention resolution timer and determining that the random access procedure was successfully completed upon receipt from the base station of a physical downlink control channel (PDCCH) transmission addressed to a cell-radio network temporary identity (C-RNTI) of the mobile communication terminal and containing a UL grant.08-27-2009
20130028242ARQ SYSTEM WITH STATUS AND PACKET ACKNOWLEDGEMENT - A communication system comprises a downlink indicator channel (DL01-31-2013
20130028240MOBILE USER TERMINAL, MOBILE COMMUNICATION SYSTEM, BASE STATION, AND COMMUNICATION METHOD - A mobile user terminal, which communicates with a base station in an intermittent fashion, the mobile user terminal includes a radio transmitter which transmits downlink channel quality information indicating downlink channel quality and an uplink pilot signal to a base station in an intermittent fashion; and a transmit time controller which synchronizes transmit time of the downlink quality information and transmit time of the uplink pilot signal relative to each other, such that the downlink quality information and the uplink pilot signal are sent in adjacent different timings in a period corresponding to a state of intermittent communicate.01-31-2013
20130028241METHOD FOR SENDING UPLINK SOUNDING REFERENCE SIGNAL, METHOD FOR ESTIMATING CHANNEL, MOBILE TERMINAL, BASE STATION AND WIRELESS COMMUNICATION SYSTEM - A method for sending an uplink sounding reference signal (SRS), a method for estimating a channel, a mobile terminal and a base station are provided. The method for sending the uplink SRS includes: processing the uplink SRS with masks to obtain a plurality of uplink SRSs processed by the masks; sending the plurality of uplink SRSs processed by the masks on each of numerous time slots distributed to reference signals. The technical solution is able to improve the capacity of the SRS.01-31-2013
20130028239Time Alignment in Multicarrier OFDM Network - A base station receives uplink signals from a wireless device and transmits at least one time alignment command computed based, at least in part, on timing of the received uplink signals. The time alignment command comprises a time adjustment value and an index identifying a carrier group.01-31-2013
20120163348SEQUENCE GENERATING METHOD FOR EFFICIENT DETECTION AND METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING THE SAME - A sequence generation method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and a signal transmission/reception method using the same are disclosed. During the sequence generation, an index is selected from among the index set having the conjugate symmetry property between indexes, and a specific part corresponding to the frequency “0” is omitted from a transmitted signal. In addition, a reception end can calculate a cross-correlation value between a received (Rx) signal and each sequence using only one cross-correlation calculation based on the conjugate symmetry property.06-28-2012
20110310859BASIC SERVICE SET SCHEDULING BASED ON MEDIA ACCESS CONTROLLER STATES - Apparatus and methods for controlling a wireless device concurrently operating in more than one basic service set (BSS). In one embodiment, a wireless device includes a first medium access controller (MAC), a second MAC, and a BSS scheduler. The first MAC is configured to communicate in a first BSS via a first wireless network. The second MAC is configured to communicate in a second BSS via a second wireless network. The BSS scheduler is configured to time multiplex medium access by the first and second MACs. Each of the first and second MACs is configured to provide a response to the BSS scheduler and to relinquish medium access when a request to relinquish medium access is received by the MAC, the timing of the response and relinquishment based on an activity state of the MAC when the request is received.12-22-2011
20110310858BEACON SIGNALING METHOD AND APPARATUS - Systems and methods are described herein for managing beacon signaling in a wireless communication system. A method described herein includes identifying a neighboring macrocell and a time division multiplexing (TDM) channel offset of the neighboring macrocell, the channel offset corresponding to at least one of a signaling channel or an overhead channel; selecting a local channel offset that differs from the channel offset of the neighboring macrocell; and generating a transmission schedule such that first transmissions are omitted for at least a portion of transmission intervals of the neighboring macrocell; wherein the transmission intervals of the neighboring macrocell are identified according to the channel offset of the neighboring macrocell and wherein the first transmissions include at least one of pilot transmissions, medium access control (MAC) transmissions or traffic transmissions.12-22-2011
20110310857RANDOM ACCESS PROCEDURE - The invention relates to a method of random access, comprising: a higher layer instructs the lower layer to transmit a random access preamble, wherein the timing transmission of the random access preamble is adjusted by the lower layer according the triggered resources.12-22-2011
20100020770SYSTEM AND METHOD FOR BANDWIDTH RESERVATION PROTOCOL FOR SPATIAL REUSE IN A WIRELESS COMMUNICATION NETWORK - A system and method for providing spatial reuse in a wireless network for communicating compressed and uncompressed audio/video is disclosed. A bandwidth reservation request for data communication with a receiver to a coordinator is transmitted. A first response indicating availability of the receiver for the data communication is received. A channel is listened to by a station for channel busy indication (CBI) messages transmitted by other stations in the wireless network. A local channel occupation report comprising data indicative of one or more time periods during which one or more other stations in the wireless network are scheduled to transmit data messages is transmitted to the coordinator. A second response comprising data indicative of one or more allocated channel time slots is received. Audio and/or video (A/V) data is transmitted to the receiver during the allocated channel time slots.01-28-2010
20090196262METHODS AND APPARATUS FOR INTRA-USER QUALITY OF SERVICE UPLINK SCHEDULING - A method for intra-user quality of service (QoS) uplink scheduling may include determining scheduling types associated with active uplink connections that are maintained by the subscriber station. The method may also include determining QoS parameters corresponding to the different scheduling types. The method may also include scheduling the active uplink connections for uplink transmissions based on the different scheduling types and their corresponding QoS parameters.08-06-2009
20130044737METHOD OF CONTROLLING UPLINK SYNCHRONIZATION STATE AT A USER EQUIPMENT IN A MOBILE COMMUNICATION SYSTEM - A method of controlling uplink synchronization state at a user equipment in a mobile communication system is disclosed. The method of controlling an uplink synchronization state at a user equipment in a mobile communication system comprises receiving control information associated with controlling uplink synchronization state of the user equipment from a network, releasing uplink resources allocated from the network if the uplink synchronization state is shifted from a synchronization state to an asynchronous state based on the control information.02-21-2013
20080259878METHOD AND APPARATUS FOR A SCHEDULER FOR A MACRO-DIVERSITY PORTION OF A TRANSMISSION - A method, apparatuses, and system of broadcasting content data in a macro-diversity region of a data frame includes receiving a stream of transport packets. Selecting at least one burst size, from amongst a set of a plurality of predetermined burst sizes. Allocating one or more data bursts with the selected burst size to the macro-diversity region of the data frame, each data burst comprising at least a portion of the received transport packets and wherein the at least one burst size is selected so as to minimize a number of data bursts allocated to the macro-diversity region. Then communicating the allocation of data bursts to a transmitter that includes the allocation of data bursts in the macro-diversity region of a data frame transmitted by the transmitter.10-23-2008
20100014489METHOD AND SYSTEM FOR DIRECTIONAL VIRTUAL SENSING RANDOM ACCESS FOR WIRELESS NETWORKS - A method and system for wireless communication in a wireless network is provided. One implementation involves a requesting wireless station directionally transmitting a request to a coordinator for access to a communication channel; the request packet includes a field indicating the length of the desired reservation period; and upon successfully receiving the request from the wireless station, the coordinator reserving a channel time period for data transmission by the requesting wireless station, and at least pseudo-omni-directionally broadcasting a packet to all wireless stations in the network indicating the reservation. All other stations refrain from contending the channel during the reserved channel time period.01-21-2010
20100080196RSVP/SBM BASED UP-STREAM SESSION SETUP, MODIFICATION, AND TEARDOWN FOR QOS-DRIVEN WIRELESS LANS - A method and system is disclosed for setting up, modifying and tearing down an up-stream communication session in a basic service set (BSS) in a wireless local area network (WLAN), so that the communication session has a defined Quality of Service (QoS). Regarding setting up an up-stream communication session, a first Path message and a first Resv message (Path/Resv message) of a RSVP protocol are detected at a designated subnet bandwidth manager (DSBM) in a station having a point coordinator (PC). The first Resv message originates from a RSVP agent of a host outside the BSS, and is a request for setting up an up-stream session between a source non-PC station in the BSS and the PC station. A QoS parameter set and a classifier from the first Path/Resv message for the session are extracted at the DSBM. The DSBM determines whether to admit the up-stream session to the network based on the QoS parameter set defining the session and a channel status report on a medium access control (MAC) sublayer of the BSS. When the up-stream session is admitted, a QoS management entity (QME) of the PC station sets up a virtual up-stream (VUS) between the source non-PC station and the PC station for transporting the up-stream session traffic. The DSBM is part of the QME in the PC station.04-01-2010
20130028238METHOD FOR TRANSMITTING DOWNLINK CONTROL CHANNEL IN A MOBILE COMMUNICATION SYSTEM AND A METHOD FOR MAPPING THE CONTROL CHANNEL TO PHYSICAL RESOURCE USING BLOCK INTERLEAVER IN A MOBILE COMMUNICATION SYSTEM - A method for transmitting a downlink control channel in a mobile communication system and a method for mapping the control channel to physical resources using a block interleaver are provided. In order to transmit a downlink control channel in a mobile communication system, information bits are modulated to generate one or more modulation symbols according to a specific modulation scheme, the modulation symbols are interleaved using a block interleaver, and the interleaved modulated symbols are mapped to resource elements allocated for transmission of at least one control channel in a subframe, thereby transmitting the at least one control channel.01-31-2013
20110194539ACCESS WINDOW ENVELOPE CONTROLLER IN WIRELESS NETWORK - A method may include receiving a packet destined to a wireless node, buffering the packet, and scheduling a time at which to transmit the packet to the wireless node. Scheduling the packet may include determining an application-layer protocol associated with the packet. The method may also include wirelessly transmitting the packet to the wireless node at the scheduled time. In one embodiment, the method may also include sending information to a node that originated the packet indicating that the packet is buffered. In another embodiment, sending information to the node that originated the packet indicating that the packet is scheduled to be wirelessly transmitted at the scheduled time.08-11-2011
20100157952Dynamic CTA adjustment across superframes in a wireless network - In a wireless communications network, various embodiments of the invention provide a technique for requesting an extension or truncation of the previously assigned channel time allocation (CTA), and extending that extension or truncation across multiple superframes without having to make further requests. The request may be made by transmitting an Information Element (IE) that indicates how many superframes the request applies to.06-24-2010
20100118840PILOT ARRANGEMENT METHOD IN MOBILE RADIO COMMUNICATION SYSTEM AND TRANSMITTER/RECEIVER ADOPTING SAME - A pilot arrangement method in a mobile radio communication system by which, in order to avoid a problem that poor CQI accuracy affects the scheduling of channel arrangement to cause the throughput to be deteriorated, a working frequency band is divided into a plurality of predetermined bands and time division multiplexing is performed. A known pilot symbol is inserted into the predetermined frequency bands at predetermined reference intervals. Furthermore, the known pilot symbol is inserted into at least one of the predetermined frequency bands at smaller intervals than the predetermined reference intervals and arranged.05-13-2010
20100074233Packet transmission scheduling technique - A packet data transmission method of the HSDPA system includes collecting information on the quality of physical channels, a status of the MAC buffer, the priority level of data, the delay of data, and the like, determining the transmission order of data and the size of a data block to be transmitted based on the collected information, and transmitting the data block through the physical layer according to the order of transmissions. Since the HSDPA scheduler takes into account the delay of data, the quality of real-time services can be improved.03-25-2010
20100074230MOBILE STATION, BASE STATION, RADIO COMMUNICATION SYSTEM, AND COMMUNICATION CONTROL METHOD - A mobile station is configured to send a base station a buffer status report explicitly indicating that the amount of a transmission signal in a buffer of the mobile station has become zero. This configuration makes it possible to efficiently allocate radio resources of an uplink shared channel and thereby to increase uplink capacity.03-25-2010
20100074232METHOD OF COMMUNICATION BETWEEN MOBILE STATION AND BASE STATION IN MOBILE COMMUNICATION SYSTEM - Method of communication between a mobile station and a base station in a mobile communication system of IMT-2000 communication network basis, which is suitable for effective transmission of various multimedia information within a given channel capacity, the method including the steps of (1) when a mobile station receives a data transmission request, providing one portion of a period of a data frame with regular number and arrangement of down link slots and up link slots and the other portion of the data frame with irregular number and arrangement of down link slots or/and up link slots depending on characteristics and amount of subscriber data to be transmitted, (2) determining a transmission type according to which a communication is executed using a competition period for determining priorities of the subscriber data, a reservation period for making a reservation for time slots for use in transmission of the subscriber data, and an assignment period for assigning a memory period according to an amount of the subscriber data, which periods are selectively and respectively included in the one portion of the data frame and in the other portion of the data frame, and (3) providing the data frame according to the transmission type and transmitting to the base station.03-25-2010
20100074231METHOD AND RELATED DEVICE OF SCHEDULING REQUEST BEHAVIOR IN A WIRELESS COMMUNICATION SYSTEM - A method of scheduling request (SR) behavior for a UE configured with semi-persistent scheduling in a wireless communication system includes triggering an SR when the UE does not have an uplink resource allocated for a current transmission time interval, and controlling the triggered SR to remain pending and to be repeated until uplink resources are granted for a new transmission.03-25-2010
20130077605METHOD FOR TRANSMITTING VIDEO CONTENTS FROM A SERVER TO A TERMINAL OF A USER WITHIN SERVICE PERIODS OF A RADIO TRANSPORT CHANNEL - The invention related to a method for transmitting video contents from a server to a terminal of a user within service periods (S) of a radio transport channel, each video content being encoded by using scalable codec technology for integrating a scalable codec base layer (b03-28-2013
20130077604METHOD, APPARATUS, AND SYSTEM FOR DATA TRANSMISSION - The present invention provides a method, an apparatus and a system for data transmission. The method includes: receiving processed first microwave data information that is received through a microwave antenna; performing multiplexing through a preset rule on the first microwave data information and processed first radio frequency data information that is received through a base station antenna, and sending multiplexed information to a baseband unit, so that the baseband unit sends the first microwave data information to a microwave indoor unit. In the method, the apparatus and the system for data transmission, microwave data information and radio frequency data information are multiplexed, and then multiplexed information is transmitted together. The microwave data information can be transmitted through a transmission medium between base station devices, such as a fiber, thereby saving connection cables between microwave transmission devices and reducing a device cost and an installation cost of the microwave transmission devices.03-28-2013
20130077603Method and Apparatus For Mapping Multi-Standard IQ Data Based on CPRI - The invention provides a method for IQ data mapping, including the following steps of mapping IQ data of one or more standards to a CPRI radio frame, wherein, the CPRI radio frame includes multiple multi-frames, and boundaries of the multi-frames are aligned with the header of the CPRI radio frame, and each multi-frame includes K basic frames, and each basic frame includes a plurality of IQ sub-containers, and one IQ sub-container constitutes one time slot, and the number K of the basic frames and bit widths Naxc of the IQ sub-containers included in each multi-frame are identical for different standards, and the length of the CPRI radio frame is 10ms. The invention also provides an IQ data mapping apparatus.03-28-2013
20130039351MULTIPLE MODE SUPPORT IN A WIRELESS LOCAL AREA NETWORK - Briefly, in accordance with one embodiment of the invention, an access point may provide multiple access to a single medium by providing time division multiple access to the medium. During a first phase to communicate with devices of a first type, the access point may transmit a beacon to indicate to devices of a second type not to communicate during the first phase. During a second phase to communicate with devices of the second type, the access point may transmit a beacon to indicate to devices of the first type not to communicate during the second phase. In one particular embodiment, the access point may transmit a medium reservation packet to indicate reservation of the medium for affected devices. Phases may be adaptively extended by transmitting additional medium reservation packets until it is desired to end the present phase and transition to the second phase02-14-2013
20130039349Methods of Channel State Information Feedback and Transmission in Coordinated Multi-Point Wireless Communications System - An apparatus and method for feedback solutions that function in conjunction with CoMP transmissions. The feedback solutions are applicable to joint transmission (JT) as well as coordinated scheduling (CS) and coordinated beamforming (CB). Embodiments of the present disclosure are described herein in the context of a wireless network in compliance with LTE standards.02-14-2013
20130039350METHODS AND DEVICE OF MANAGING RESOURCES IN A WIRELESS COMMUNICATION NETWORK - A method and a device for managing resources in a wireless communication network are provided. In one embodiment, a Medium Access Control (MAC) superframe format for a wireless communication network includes a beacon frame including beacon information for synchronizing devices in the wireless communication network and for defining structure of the MAC superframe, where the beacon information includes superframe structure information and synchronization information. The MAC superframe format also includes at least one multi-node connection frame substantially following the beacon frame and including device specific information and network specific information for allocating resources to one or more of the devices and/or providing network configuration parameters to the devices.02-14-2013
20130034086SYSTEM AND METHODS FOR SYNCHRONIZING EDGE DEVICES ON CHANNELS WITHOUT CARRIER SENSE - A system and method are disclosed for synchronizing edge devices on a network, wherein the network has limited bandwidth and does not support a practical carrier sense mechanism. The edge devices transmit, using a slotted protocol, to a server located at a central data aggregation point. The server also controls a Central Transmitter, which sends messages to the edge devices to assign transmission slots and provide timing information to the edge devices to ensure that transmissions sent by devices sharing the same communication channel do not collide.02-07-2013
20130034087APPARATUS AND METHOD FOR TRANSCEIVING INFORMATION ON AN UPLINK TIMING GROUP IN A WIRELESS COMMUNICATION SYSTEM - A method for transmitting information on an uplink timing group includes performing RACH procedures with user equipment for a preset period of time to generate an uplink timing group, and transmitting, to the user equipment, a message including information on the configuration of the thus-generated uplink timing group, wherein said uplink timing group is a group of one or more component carriers to which identical uplink timing correction is applied.02-07-2013
20130034085Medium Access Control Timing Advance Group Assignment - In a method for assigning serving cells of a mobile terminal to timing advance groups, a network node transmits a Medium Access Control (MAC) control element to a mobile terminal in a wireless communication network. The MAC control element includes a set of first indicators, with each first indicator specifying whether a corresponding serving cell of the mobile terminal is to be included in a timing advance group. The MAC control element also includes at least one second indicator, with each second indicator specifying a timing advance group, and also specifying, via a defined mapping, the serving cell of the mobile terminal to which the timing advance group corresponds.02-07-2013
20100046482MULTI-CHANNEL SDMA - Certain embodiments provide a method for scheduling packet transmissions in a multi-channel wireless communications system. The method generally includes requesting, from a plurality of wireless network nodes, an identification of channels available for communicating with the wireless network nodes, receiving an identification of channels available for communicating with the wireless network nodes, determining a schedule for packet transmission for the wireless network nodes based on the identification of channels, and communicating the schedule to the wireless network nodes.02-25-2010
20130077607TECHNIQUES FOR DYNAMIC RESOURCE ALLOCATION - Techniques are disclosed that dynamically allocate communications resources in a wireless communications network, such as a wireless personal area network (WPAN). For instance, a wireless communications device may obtain a resource allocation. This resource allocation includes a time slot (e.g., a TDMA time slot) within a wireless communications medium. The device determines a first portion of the time slot in which it intends to transmit data. Also, the wireless communications device relinquishes a second portion of the time slot that occurs after the first portion of the time slot. Based on this relinquishment, a central controller device may reallocate the second portion of the time slot.03-28-2013
20130077606Method, Network Element and System for Scheduling Communication Link - Provided is a method for scheduling a communication link, wherein the communication link is adapted for connecting two network elements, wherein a first carrier and a second carrier are assigned to the communication link, wherein each carrier includes frames divided into timeslots, and a predefined number of timeslots is allocated for downlink communication and a predefined number of timeslots is allocated for uplink communication. The method includes scheduling the communication link for offsetting the start of the frames of the first carrier in respect to the start of the frames of the second carrier. Also provided are a network element adapted for carrying out the method and a system including the network element.03-28-2013
20120182977Resource Setting Control for Transmission Using Contention Based Resources - There is proposed a mechanism by means of which resources for a data transmission between a user equipment and a base transceiver station are set. For this purpose, a resource dedicated to the user equipment (like an SR resource) is combined with at least one contention based resource allocated to a contention based transmission by the user equipment (like a CB-PUSCH resource). The at least one contention based resource to be combined is selected by executing a mapping according to a predetermined rule and based on an information indicating a specific resource element dedicated to the user equipment to at least one set of available contention based resources, and by determining an information identifying at least one resource element of the at least one contention based resource.07-19-2012
20120182976Wireless Network Protocol Coexistence - The present invention comprises a communication device configured to communicate using several wireless networking protocols. The communication device is configured to transmit a signal according to a first protocol so as to indicate to devices on the wireless network that they should not transmit during a first period of time, and subsequently, transmit or receive signals by means of the second protocol during the first period of time.07-19-2012
20120182975Method and Apparatus for Repeating Uplink Synchronization in Time Division Synchronous Code Division Multple Access (TD-SCDMA) Networks - A method, an apparatus, and a computer program product for wireless communication are provided in which a first synchronization signal to access to a Node B is transmitted; a request signal from the Node B requesting a second synchronization signal is received; and the second synchronization signal is transmitted to the Node B.07-19-2012
20120182974System and Method for Mapping Reference Signal Sequence in Advanced Long Term Evolution System - The present invention provides a method and system for mapping a reference signal sequence in an advanced Long Term Evolution (LTE) system, and the method and the system are used to map the reference signal sequence to an orthogonal frequency division multiplexing symbol of l. The method includes: when the system uses a normal cyclic prefix, determining the symbol l according to an expression, and mapping the reference signal sequence to a location of a sub-carrier k on the symbol l of an antenna port p. The system includes: a mapping module, a first acquiring module and a second acquiring module. The system and the method which are provided ensure the transmission performance while ensuring the interference randomization. In addition, the system and the method are compatible with existing LTE systems, thus realizing high-order Multiple Input Multiple Output (MIMO) transmission, supporting the usage of the corresponding techniques.07-19-2012
20090154430Method of Radio Resource Allocation and Related Communication Apparatus - A method of radio resource allocation in a wireless communication system includes allocating radio resource to a plurality of logical channels according to a grant, and allowing the plurality of logical channels to use the remaining grant when the grant remains and the plurality of logical channels having data available for transmission cannot perform resource allocation anymore.06-18-2009
20090154429METHOD AND SYSTEM FOR MANAGING COMMUNICATION BETWEEN A BASE STATION AND SUBSCRIBER STATIONS - A method and system for managing a communication between a base station (06-18-2009
20100040028METHOD AND APPARATUS FOR MITIGATION OF PROCEDURES IN A WIRELESS COMMUNICATION SYSTEM - The described apparatus and methods may include a controller configured to receive data on a logical channel, determine that a first grant is not available during a first time transmission interval, determine whether to generate at least one of a buffer status report (BSR), a scheduling request (SR), and a random access channel (RACH) procedure based on an amount of the received data, determine that a second grant is available during a second time transmission interval, and transmit the received data during the second time transmission interval without generating the BSR, the SR, and the RACH procedure when the amount of the received data is less than or equal to the size of the grant.02-18-2010
20100091743Preparation Phase for Switching Between Su-MIMO and MU-MIMO - The present invention relates to a method and arrangement for switching between different modes in a communications network. The network comprises a number of transmit and a number of receive antennas, said modes comprising a single user mode and a multiple user mode. The method including the steps of: transmitting reference signals or predetermined sequences corresponding to both said modes comprising respective weighting matrices for said modes during a preparation phase, which comprises of one or more transmission time intervals (TTI), transmitting on a common channel, signalling information indicating start and duration of said preparation phase to all receiving equipments in a reception area.04-15-2010
20130083780ANTENNA TIME OFFSET IN MULTIPLE-INPUT-MULTIPLE-OUTPUT AND COORDINATED MULTIPOINT TRANSMISSIONS - A method for wireless communication is provided which includes receiving first and second signals transmitted from first and second antennas, respectively, determining a time offset between the first and second antennas based on the first and second signals, and reporting information regarding the time offset, including information regarding the time offset as being above or below a predetermined threshold. Another method for wireless communication is provided which includes generating channel state information feedback based on an assumption that the time offset is being compensated at a transmitter side. Yet another method for wireless communication is provided which includes receiving information regarding a time offset between multiple transmit antennas, including information regarding the time offset as being above or below a predetermined threshold, and adapting downlink transmissions to account for the time offset.04-04-2013
20130083779METHOD FOR DEVICE-TO-DEVICE COMMUNICATION BASED ON CELLULAR TELECOMMUNICATION SYSTEM - Disclosed is device-to-device communication based on a cellular communication network. A method of operating a terminal capable of supporting D2D (device to device) communication based on a cellular communication network may include: determining whether to perform central control D2D communication or distributed control D2D communication; and performing the distributed control D2D communication, or requesting a setting for the central control D2D communication to a base station on the basis of the determination. With the D2D communication based on the cellular communication network, the cellular communication, the central control D2D communication, or the distributed control D2D communication may flexibly and selectively operate in the cellular network.04-04-2013
20130083781METHOD AND APPARATUS FOR RETRIEVING TRANSMIT OPPORTUNITY CONTROL IN REVERSE DIRECTION GRANT - Embodiments of the present invention disclose a method and an apparatus for retrieving transmit opportunity control in reverse direction grant, so that a conflict occurring between a case where an RD Initiator continues sending another frame to an RD Responder after retrieving TXOP control and a case where a terminal other than the RD Initiator sends a block acknowledgement to the RD Responder can be avoided. The method provided in the embodiments of the present invention includes: when an RD Initiator fails to correctly demodulate a frame sent by an RD Responder, retrieving, by the RD Initiator, TXOP control by using a PIFS if it is impossible for the RD Responder to enable an MU-MIMO mode, and retrieving, by the RD Initiator, the TXOP control by using a duration if it is possible for the RD Responder to enable the MU-MIMO mode, where the duration is longer than the PIFS.04-04-2013
20130051373SIGNAL TRANSMISSION METHOD AND APPARATUS FOR CELL SEARCH IN WIRELESS COMMUNICATION SYSTEM - Methods and apparatus for transmitting and receiving signals are provided for facilitating a cell search in a wireless communication system supporting various types of multicarrier transmission. A carrier type indication signal indicating a type of carrier supported by the base station is generated. The carrier type indication signal is transmitted with synchronization signals, to one or more terminals in a cell of the base station. A type of a carrier supported by a base station is determined based on a carrier type indication signal transmitted by the base station. A cell search procedure is performed to access the base station according to the type of the carrier supported by the base station.02-28-2013
20090052408WIRELESS COMMUNICATION METHOD AND APPARATUS - A method and apparatus are provided for enabling a user to effectively use a wireless network using a contention free channel access service. The wireless communication method includes receiving a contention free channel access request frame from at least one device in a wireless network in a superframe, and broadcasting a traffic information message including contention free channel access information in the superframe after the contention free channel access request frame is received.02-26-2009
20130089079METHOD AND ARRANGEMENT IN A COMMUNICATION NETWORK - An object of the present invention is to provide a mechanism for observing random access performance in a Long Term Evolution network. The object is achieved by a method in a base station (04-11-2013
20090303970WIRELESS COMMUNICATION SYSTEM, BASE STATION, SCHEDULING METHOD, AND PROGRAM - A wireless communication system comprising: a holding unit that holds at least wireless resource allocation information on an opposite-direction communication link for use as information for deciding priority of wireless resource allocation to mobile stations, said opposite-direction communication link being a communication link in a direction opposite to a direction in which allocation priority is to be decided; and a scheduling unit that performs scheduling to allocate wireless resources with priority given to mobile stations, to which wireless resources are allocated on the opposite-direction communication link, using the wireless resource allocation information on the opposite-direction communication link.12-10-2009
20090303969Apparatus and method for employing common control channel and broadcast channel in a broadband wireless communication system with frequency overlay - A broadband wireless communication system supporting frequency overlay is provided. Operations of a base station includes checking whether it is time to transmit a common control signal; switching positions of a first Common Control Channel and a second Common Control Channel applied to a previous transmission of the common control signal while mapping a common control signal to the first Common Control Channel and the second Common Control Channel positioned in different Frequency Assignments; and transmitting the common control signal via the first Common Control Channel and the second Common Control Channel that are switched.12-10-2009
20090303968INCREASING CAPACITY IN WIRELESS COMMUNICATIONS - Techniques to increase capacity in a wireless communications system. In an aspect, systematic non-transmission, or “blanking,” of minimal-rate frames transmitted in a communications system is provided. In an exemplary embodiment, eighth rate frames in a cdma2000 voice communications system are systematically substituted with null-rate frames carrying zero traffic bits. Provisions are nevertheless made for the transmission of certain designated as “critical” by, e.g., a vocoder. The receiver detects the presence of null rate or non-null rate transmissions and processes the received frames accordingly, including updating an outer loop power control only in response to non-null rate frames. Further techniques for changing the pilot transmission gating pattern to assist the receiver in detecting null rate frames are provided. In another aspect, early termination of a signal transmission over a wireless communications link is provided. In an exemplary embodiment, a base station (BS) transmits power control groups (PCG's) for a frame over a forward link (FL) to a mobile station (MS) until accurate reception of the frame is acknowledged by the MS over a reverse link (RL), possibly before all PCG's of the frame are received over the FL. Possible ACK signaling methods are defined for channels associated with a cdma2000 wireless communications system. In another exemplary embodiment, techniques for reverse link early termination are also provided.12-10-2009
20120218977APPARATUS AND METHOD FOR TRANSMISSION OPPORTUNITY IN MESH NETWORK - An apparatus and method of transmission opportunity in a mesh network is disclosed. A beacon timing from a receiver MP is received. The beacon timing includes a beacon reception timing of a received beacon frame that is received by the receiver MP from a neighboring MP of the receiver MP. A transmission opportunity is determined in order not to be extended across the beacon reception timing.08-30-2012
20120218976Mechanisim to Avoid Interference and Improve Communication Latency in MMWAVE WPANS - Briefly, a mechanism to avoid interference and improve channel efficiency in mmWave Wireless Personal Area Networks (WPANs) is disclosed. In particular, interference information during various time periods is tracked and used to optimize transmission scheduling. Further, a mechanism is provided to improve communication latency by distributing responsibility for coordination of slots amongst multiple transmitting devices.08-30-2012
20110007719METHOD FOR SETTING TRANSMISSION TIMING OF WIRELESS COMMUNICATION APPARATUS - A method for setting an uplink transmission timing of a wireless communication apparatus, comprises: acquiring an initial uplink transmission advance timing by an initial ranging procedure during the wireless communication apparatus being served by SBS; receiving a downlink preamble signal from SBS; determining the downlink preamble signal receiving time at the wireless communication apparatus; and, setting an uplink transmission timing for the wireless communication apparatus according to the acquired initial uplink transmission advance timing and the downlink preamble signal receiving time. Another method comprises: acquiring an initial uplink transmission advance timing by an initial ranging procedure during the wireless communication apparatus being served by SBS; handing over the wireless communication apparatus to TBS from SBS; and, updating the uplink transmission timing for the wireless communication apparatus according to the acquired initial uplink transmission advance timing and the difference of receiving times of downlink preamble signals transmitted from SBS and TBS.01-13-2011
20090092104RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD AND BASE STATION - In a radio communication system in which a radio terminal 04-09-2009
20090092103Method and apparatus for a coordinated scheduling method to avoid multiplexing of control and data for power limited users in the LTE reverse link - A system and method for coordinated scheduling of a telecom device to avoid multiplexing of control signaling and data signaling is disclosed. The method includes defining a round trip time for signaling transmissions. The method further includes allocating the signal transmissions and signal retransmissions for uplink transmissions which are directed by a first scheduling mode and downlink transmissions which are directed by a second scheduling mode to take place in a subframe time position where control signaling transmissions are not being transmitted in subframes where data transmissions and retransmissions are being transmitted. This system and method are particularly useful for telecommunication devices in power limited situations.04-09-2009
20130070735WIRELESS BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - When time at present is included in a high-traffic time period, an interference determining unit (03-21-2013
20130070734NETWORK APPARATUS FOR ACCESSING CHANNEL IN CONTENTION FREE PERIOD - There is provided a network apparatus in which a contention free period is fixed at a relatively maximum size and guaranteed time slots are varied in the fixed contention free period to allocate remaining time slots of the contention free period to data transmissions of terminals according to priority. There is provided a network apparatus for accessing a channel in a contention free period, the method including: a coordinator fixing a contention free period within a frame to have a preset size and setting and allocating guaranteed time slots (GTSs) in the fixed contention free period according to request; and a terminal group having at least one terminal, forming a network with the coordinator, requesting guaranteed time slots from the coordinator, and transmitting data in allocated guaranteed time slots.03-21-2013
20110038355METHOD AND SYSTEM OF COMMUNICATION EMPLOYING SPATIAL REUSE RESERVATION PROTOCOL - A wireless device (02-17-2011
20130058317METHOD IN WHICH A GROUP OF TERMINALS RECEIVES A DOWNLINK CONTROL CHANNEL, AND METHOD IN WHICH THE TERMINALS MAKE REQUESTS FOR BANDWIDTH IN A WIRELESS COMMUNICATION SYSTEM IN WHICH THE SAME STID OR C-RNTI IS ALLOCATED TO THE GROUP OF TERMINALS - The present invention relates to a method in which a group of terminals receives a downlink control channel, and to a method in which the terminals make requests for bandwidth in a wireless communication system in which the same station identifier (STID) or cell-radio network temporary identifier (C-RNTI) is allocated to the group of terminals. The method, in which a group of terminals to which the same STID or C-RNTI is allocated receive a downlink control channel, comprises the following steps: receiving, from a base station, information on the STID or C-RNTI allocated to the terminals; receiving information on a time domain in which the downlink control channel for the terminals is transmitted, information on a frequency domain, or information on a search space from the base station; and decoding the downlink control channel on the basis of the information on a time domain, the information on a frequency domain, or the information on a search space, and on the basis of the STID or C-RNTI.03-07-2013
20130058314PACKET TYPE SPOOFING FOR COEXISTENCE AMONG MULTIPLE WIRELESS COMMUNICATION TECHNOLOGIES - Methods having corresponding apparatus and computer-readable media comprise: transmitting and receiving wireless Long Term Evolution (LTE) signals according to an LTE schedule; transmitting and receiving wireless Bluetooth signals according to a Bluetooth schedule having a plurality of Bluetooth schedule slots, wherein the wireless Bluetooth signals represent Bluetooth Asynchronous Connection-oriented [logical transport] (ACL) packets; generating a Bluetooth ACL packet; selecting a spoofed number M of the Bluetooth schedule slots for the Bluetooth ACL packet based on information representing the LTE schedule, wherein M is a positive integer; selecting a Bluetooth ACL packet type based on the spoofed number M of the Bluetooth schedule slots; and indicating the selected Bluetooth ACL packet type in a type field of the Bluetooth ACL packet prior to transmitting the wireless Bluetooth signals representing the Bluetooth ACL packet.03-07-2013
20130058316COEXISTENCE TIMER MECHANISM FOR WIRELESS COMMUNICATION SYSTEMS - A common coexistence timer can be implemented on collocated or proximate wireless radio devices so that timing information associated with scheduled communications of each of the wireless radio devices is communicated with a common time reference. The coexistence timer provides the common time reference for the wireless radio devices. A transmitting wireless radio device can calculate a difference time associated with the timing information of a scheduled communication and can provide the difference time to a receiving wireless radio device. The receiving wireless radio device can convert the difference time into a time format corresponding to the receiving wireless radio device's local time reference. This can minimize interference between the collocated or proximate wireless radio devices, thus minimizing performance degradation, packet collision, and interference. Moreover, this also can eliminate timing errors due to the wireless radio devices using different timers operating at different frequencies or being synchronized to different crystals.03-07-2013
20130058315TRANSMIT POWER CONTROL FOR PHYSICAL RANDOM ACCESS CHANNELS - The invention relates to methods for adjusting the transmit power utilized by a mobile terminal for uplink transmissions, and to methods for adjusting the transmit power used by a mobile terminal for one or more RACH procedures. The invention is also providing apparatus and system for performing these methods, and computer readable media the instructions of which cause the apparatus and system to perform the methods described herein. In order to allow for adjusting the transmit power of uplink transmissions on uplink component carriers, the invention suggests introducing a power scaling for uplink PRACH transmissions performing RACH procedures on an uplink component carrier. The power scaling is proposed on the basis of a prioritization among multiple uplink transmissions or on the basis of the uplink component carriers on which RACH procedures are performed.03-07-2013
20110013602MOBILE TERMINAL - A technology is disclosed for providing a mobile terminal that can prevent occurrence of packet loss and prevent communication delay. Based on the technology, the mobile terminal performs packet communication via a communication network with a communication terminal that is a communication partner of the mobile terminal, using a binding cache including address information of the communication terminal. The mobile terminal includes a measuring means 01-20-2011
20110013601METHOD FOR THE DYNAMIC RESERVATION AND ALLOCATION OF TIME SLOTS IN A NETWORK WITH SERVICE WARRANTY - Method of resource reservation with service guarantee in terms of throughput and deadline at the level of the N nodes of a radio network using time slots to send and transmit data, characterized in that it implements a global reservation process in which, a reservation message sent uses at least one of the following two parameters: the maximum deadline required to access the radio medium, the minimum throughput required in order to satisfy the service guarantee.01-20-2011
20090268701Method for sharing bandwidth using reduced duty cycle signals and media access control - A method is provided for transmitting data. A first device generates a first signal having a first duty cycle, comprising a first gated-on portion and a first gated-off portion in a time slot; and a second device generates a second signal having second duty cycle, comprising a second gated-on portion and a second gated-off portion in the same time slot. The first gated-on portion is generated during a first segment of the time slot and the first gated-off portion is generated during a second segment of the time slot, while the second gated-on portion is generated during the second segment and the second gated-off portion is generated during the first segment. Media access control (MAC) can be used to further define positions within time slots and provide error correction, power control, and the like. A preamble can be transmitted at an increased power level to facilitate acquisition.10-29-2009
20090268699WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION CONTROLLING METHOD - According to one embodiment, an information processing apparatus includes a wireless communication module, a communication traffic monitoring module and a management module. The wireless communication module is capable of time-dividing an identical wireless communication frame generated periodically to perform plural wireless communication with a respective plurality of different protocols in parallel. The communication traffic monitoring module monitors at least one of data traffic amounts required by the respective instances of plural wireless communication. And, the management module manages allocation of the wireless communication frame between the plurality of protocols based on the data traffic monitored by the communication traffic monitoring module.10-29-2009
20090268698METHOD FOR MODE ADAPTATION IN MIMO SYSTEM - A mode adaptation method for performing mode switching between a single-user MIMO (SU-MIMO) mode and a multi-user MIMO (MU-MIMO) mode includes receiving, by the base station, a preferred MIMO mode related information from a mobile station; determining a MIMO mode based on the preferred MIMO mode related information; reporting the MIMO mode to the mobile station; and receiving a feedback information of the MIMO mode from the mobile station.10-29-2009
20090268697METHOD OF CHANNEL ASSESSMENT AND CHANNEL SEARCHING IN A WIRELESS NETWORK - A method of channel assessment and channel searching in a wireless network is disclosed. The wireless network separately performs a channel assessment procedure and a channel searching procedure for channel change or another object. The channel assessment procedure is to measure a status or quality of a channel which is currently used in the wireless network. A coordinator of the wireless network designates a time interval for the channel assessment to notify other device of it. The channel assessment procedure may be performed periodically, and is preferably scheduled to allow other devices not to use the channel for the time interval which at least one device performs channel assessment.10-29-2009
20090268696Method And Arrangement In A Mobile Telecommunication Network - The present invention is based on the idea to allocate HS-DSCH power at TTI based on the HS-SCCH allocation of TTI and an estimation of the HS-SCCH allocation of TTI+1. The estimation of the HS-SCCH allocation of TTI+1 is based on estimation of which users that will be scheduled at the time denoted TTI+1. i.e., the users that have a high probability to be selected for transmission by the scheduler at the time denoted TTI+1 are determined. That is performed by calculating for each user the probability that the user will be selected for transmission by the scheduler The users that have a high probability to be scheduled at the time TTI+1 are included in a candidate set according to the10-29-2009
20090268695Method and System for Processing Reference Signals in OFDM Systems Using Transmission Time Interval Groupings - A method and system processes reference signals (10-29-2009
20090268694WIRELESS COMMUNICATION OF TURBO CODED DATA WITH TIME DIVERSITY - A turbo-coded data block is processed for transmission on a wireless communication link by scheduling a plurality of portions of the block for transmission during respectively corresponding transmit intervals that are temporally separated from one another. The block portions are transmitted during the respectively corresponding transmit intervals according to the scheduling.10-29-2009
20090268700APPARATUSES AND METHODS FOR PROVIDING EMERGENCY SERVICE IN A WIRELESS COMMUNICATION SYSTEM - Apparatuses and methods for providing an emergency service in a wireless communication system are provided. The method includes allocating a Connection IDentifier (CID) used to transmit the emergency service message, determining a Convergence Sublayer (CS) type for processing the emergency service message, generating a Downlink Channel Descriptor (DCD) message which comprises at least one of the allocated CID and information relating to the determined CS type, and transmitting the generated DCD message to a Mobile Station (MS).10-29-2009
20090268693Signaling part of semi-persistent configuration via downlink control channel - A method includes receiving a first control information from a network access node, the first control information comprising a plurality of fields defining control information elements that are relevant to a resource allocation; receiving a second control information from the network access node, the second control information comprising a plurality of fields defining control information elements that are relevant to the resource allocation; and declaring the resource allocation to be a persistent resource allocation if at least one of the plurality of fields of the second control information is the same as one of the plurality of fields of the first control information. Also disclosed are computer programs and apparatus for carrying out the method, as well as a network access node configured to compose first control information and second control information for expressing resource allocations.10-29-2009
20090067389RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD FOR UWB IMPULSE COMMUNICATION - Provided is a radio communication system for ultra wideband (UWB) impulse communications and a radio communication apparatus and method thereof. The present patent provides a radio communication system that can minimize power consumption by eliminating a need for carrier detection and sharing transmission/reception time information in UWB impulse communications. The system includes a network coordinator; and one or more devices communicating on a superframe basis in subordination to the network coordinator. The devices perform data transmission/reception in predetermined time slots and then they are inactivated to thereby reduce power consumption.03-12-2009
20120224565RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION METHOD, AND COMPUTER PROGRAM - An autonomously dispersed type wireless network is suitably formed with communication stations avoiding collision of beacons transmitted one to another. In the event that the range of reach of airwaves change and a receivable state is created and beacons collide, a communication station changes the beacon transmission position of itself in response to receiving a beacon from another station at a timing immediately prior to transmission to its own beacon. Also, in the event that beacon collision is exposed due to emergence of a new communication which can perform reception from two systems out of airwave range of each other, the newly-participating station requests one of the communication stations of which the beacons are colliding to change the beacon transmission timing.09-06-2012
20130064229Energy Efficient Method For Communication In A Wireless Sensor Network Of An Industrial Control System - A method for communication in a wireless sensor network of an industrial control system. The network includes a plurality of device nodes and at least one gateway. The method includes aggregating in at least one wireless device data originating from at least two data packets. The method includes receiving at a first node at least one first data packet for a first destination address and aggregating data from the at least one data packet with data from at least one second data packet, intended for the same first destination address, forming an aggregated data packet and sending the aggregated data packet to another node or to said gateway. In other aspects of the invention a method, system and a computer program for carrying out the method are described.03-14-2013
20130064230METHOD OF TRANSMITTING AND RECEIVING SIGNAL IN A DISTRIBUTED ANTENNA SYSTEM - A method of transmitting a signal from a base station to a user equipment in a multi-node system comprises down-link-transmitting a signal at a first zone of a radio frame by using centralized antennas (CAs); and downlink-transmitting a signal at a second zone used for a backhaul link of a relay in the radio frame by using distributed nodes, wherein the first zone and the second zone are multiplexed by time division.03-14-2013
20130163572COMMUNICATION METHOD USING A PREAMBLE TO SHARE CHARACTERISTIC INFORMATION, METHOD FOR GENERATING THE PREAMBLE, AND COMMUNICATION SYSTEM TO WHICH THE METHODS ARE APPLIED - A communication method of a transmitter using a preamble in a wireless communication system, includes determining at least two subcarriers from among a plurality of subcarriers, for the preamble; mapping a subcarrier sequence and a subcarrier phase value of the preamble to the at least two subcarriers; and transmitting the preamble using the at least two subcarriers. The preamble may include a real component having a first repeated pattern in a preset time interval, and an imaginary component having a second repeated pattern in the preset time interval, and a relationship between the first repeated pattern and the second repeated pattern may indicate characteristic information of the wireless communication system.06-27-2013
20130163570BASE STATION ON THE BASIS OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SCHEME AND INTERFERENCE COORDINATION METHOD THEREOF - A base station on the basis of orthogonal frequency division multiplexing solution and an interference coordination method thereof are provided. The base station can include an interference estimation unit, which estimates the interference state of each physical resource block according to the feedback information from the user equipment, and in the condition that the interference of the physical resource block is greater than or equal to a first threshold and less than or equal to a second threshold which is greater than the first threshold, the interference of the physical resource block is estimated as medium interference state. The base station can also include an interference coordination request unit, which at least responses the medium interference state estimation to transmit the interference coordination request to one or a plurality of predetermined base stations, wherein interference coordination request includes the information for indicating the interference state of said physical resource block.06-27-2013
20130064232TECHNIQUES FOR REDUCING OVERHEAD IN A COMMUNICATIONS SYSTEM - Parallel demodulators are provided in field units. Forward and reverse channel allocation information may be broadcast to the field units in the same epoch as traffic data but on first and second channels, such as paging and traffic channels. This assures that all field units are able to receive forward and reverse channel allocation information every epoch. By having parallel demodulators in the field unit, switching between the first and second channels is avoided and channel allocation information is not lost.03-14-2013
20130064231GENERATING DOWNLINK FRAME AND SEARCHING FOR CELL - The present invention relates to a method for generating a downlink frame including generating a first short sequence and a second short sequence indicating cell group information, generating a first scrambling sequence determined by the first synchronization signal, generating a second scrambling sequence determined by the first short sequence, scrambling the first short sequence with the first scrambling sequence, scrambling the second short sequence with at least the second scrambling sequence, and mapping a second synchronization signal including the scrambled first short sequence and the scrambled second short sequence in the frequency domain.03-14-2013
20130163569APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING REFERENCE SIGNAL TRANSMISSION INFORMATION IN CELLULAR RADIO COMMUNICATION SYSTEM USING COOPERATIVE MULTI-POINT SCHEME - An apparatus and method for transmitting/receiving reference signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme is provided. In the reference signal transmission information transmission method, a Central Control Apparatus (CCA) transmits measurement set information related to a measurement set including at least one reference signal resource unit through which a reference signal is transmitted, and reference signal transmission timing information including information related to a timing at which the reference signal is transmitted to a User Equipment (UE), and transmits reference signal non-transmission timing information including information related to a timing at which the reference signal is not transmitted through the reference signal resource unit to the UE.06-27-2013
20090238156SYSTEM AND METHOD FOR ANTENNA TRAINING OF BEAMFORMING VECTORS BY SELECTIVE USE OF BEAM LEVEL TRAINING - A system and method of performing a beam discovery between a device and a plurality of other devices in a wireless network is disclosed. Sector training sequences to a plurality of other devices are transmitted via a transmit directional antenna having a set of transmit sectors. A plurality of feedback messages are received from the plurality of other devices, where the plurality of feedback messages are indicative of optimum transmit sectors that have been determined at the other devices based at least in part on the sector training sequences. Beam training sequences are transmitted to the plurality of other devices via the transmit directional antenna. A plurality of feedback message indicative of optimum transmit beam directions within the optimum transmit sectors are received from the plurality of other devices.09-24-2009
20090238155MULTI-CARRIER ALLOCATION USING RECIPROCAL NATURE OF UPLINK AND DOWNLINK IN TIME DIVISION DUPLEX TO USE JUST UPLINK PILOTS - In order to improve efficiency for sub-carrier allocation in a TDM multi-carrier system, the invention provides a novel frame structure and corresponding method and apparatus. During a centralized short period, each terminal sends a probe message including a predefined sequence to a network device and the network device estimates the channel characteristics for each sub-carrier with respect to each terminal by estimating the received probe message. In this way, sub-carrier allocation can be improved and sub-carriers with good channel characteristics are allocated to appropriate terminals.09-24-2009
20090238154Method for Synchronization of Assemblies in a Base Station - A method synchronizes assemblies in a base station to a reference clock signal. A local clock signal and a frame are formed in a first assembly. The clock signal and the frame are transmitted, using a synchronous transmission with a predictable propagation time, to a second assembly. A reference clock signal is received in the second assembly, and a phase difference and a time difference between the transmitted clock signal on the one hand and the reference clock signal on the other hand are determined. The phase difference and the time difference are transmitted from the second assembly to the first assembly via a link without a predictable propagation time. The phase difference and the time difference are used in the first assembly to determine a manipulated variable which controls the formation of the local clock signal, such that the first and the second assemblies are synchronized in time.09-24-2009
20090238153MEDIUM ACCESS FOR DE-CENTRALIZED WIRELESS NETWORK - A method of wireless medium access for establishing a decentralized wireless network, the method comprising broadcasting of beacon frames by each of a plurality of devices; listening, at each device, for beacon frames of other devices; identifying, at each device, other devices who's beacon frames have been heard; and forming the decentralised wireless network as at least two dynamic networks, each dynamic network being centred around one of the devices and having said other devices who's beacon frames have been heard by said one device as network members.09-24-2009
20130182689SYSTEM AND METHOD USING A RATE SPLIT SCHEME BASED ON COOPERATION BETWEEN RECEIVERS - Each of a first transmitter and a second transmitter uses a rate split scheme. Each of the first transmitter and the second transmitter may transmit at least four sub-messages, and different transmission powers may be allocated to the at least four sub-messages. Also, each of receivers may cooperate with each other, may share sub-messages that act as interferences, and may extract desired messages using the shared sub-messages.07-18-2013
20130182688METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS ON A SECONDARY CARRIER - Methods and apparatus are described herein for synchronizing timing when using a secondary component carrier (SCC) in a carrier aggregated wireless network. A user equipment (UE) may determine that it is out of synchronization with respect to an SCC used to communicate with a network element. The UE may inform the network element of the out of synchronization status, and may perform a random access procedure to synchronize the timing.07-18-2013
20130182687APPARATUS AND METHOD FOR CONTROLLING SECONDARY CELL UPLINK SYNCHRONIZATION STATES - A user equipment (UE) is configured to perform a method for controlling synchronization with a secondary cell (SCell). The method includes receiving a physical downlink control channel (PDCCH) order from an eNodeB associated with an SCell. The method also includes, in response to receiving the PDCCH order, transitioning from a first state where the UE considers the SCell in sync for an uplink transmission to a second state where the UE considers the SCell out of sync for the uplink transmission.07-18-2013
20090232110RESOURCE ALLOCATION IN A PACKET-BASED RADIO COMMUNICATION SYSTEM - A scheme for resource allocation for variable rate users in a packet-based radio communication system such as a UMTS TDD system is based on a representation (09-17-2009
20090232109Method and System for Optimal Beamforming in Wireless Networks - Aspects of a method and system for optimal beamforming in a wireless network are presented. Aspects of the system may include one or more processors for use in a requesting communication device wherein the one or more processors may be operable to request a transmission time slot allocation. A determination may be made by a coordinating communication device as whether to assign a sector transmission time slot and/or beamforming transmission time slot to the requesting communication device based on the transmission time slot allocation request. The one or more processors may be operable to receive the assigned sector transmission time slot and/or beamforming transmission time slot.09-17-2009
20090232107METHOD OF PERFORMING UPLINK SYNCHRONIZATION IN RANDOM ACCESS PROCEDURE - A method and device for performing a contention based random access procedure by a mobile communication terminal in communication with a base station. The method according to an embodiment includes transmitting a random access preamble message to the base station; receiving a random access response from the base station, the random access response including a timing advance command; determining a status of a mobile communication terminal time alignment timer; and ignoring the timing advance command if the mobile communication terminal time alignment timer is determined to be running in the determining step.09-17-2009
20090232105MECHANISM TO AVOID INTERFERENCE AND IMPROVE COMMUNICATION LATENCY IN MMWAVE WPANS - Briefly, a mechanism to avoid interference and improve channel efficiency in mmWave Wireless Personal Area Networks (WPANs) is disclosed. In particular, interference information during various time periods is tracked and used to optimize transmission scheduling. Further, a mechanism is provided to improve communication latency by distributing responsibility for coordination of slots amongst multiple transmitting devices.09-17-2009
20090232104Techniques enabling dynamic bandwidth reservation in a wireless personal area network - An embodiment of the present invention provides a method, comprising dynamically reserving free channel time blocks for directional transmissions in a wireless personal area network (WPAN) by a transceiver communicating with a Coordinator and the Coordinator allocating a part or a whole of unreserved channel time blocks for a directional link during a handshake with the transceiver.09-17-2009
20090232103Apparatus and method adapted for directional bandwidth reservation with fixed announcement slot in wireless networks - An embodiment of the present invention provides an apparatus, comprising a transceiver operable in a wireless personal area network, wherein the transceiver is configured to communicate with a coordinator and at least one receiver and wherein the transceiver and the coordinator use a directional reservation of free channel time blocks using contention-based slots, by selecting uniformly at random contention slots by the transceiver and transmitting a bandwidth reservation request message specifying the requested reservation period using directional transmission pointed towards the coordinator.09-17-2009
20090010229Token Based Radio Resource Management - The invention relates to a method of globally balancing the transmit power in a cellular radio system with tight reuse of frequencies, to a central controller node, and to an access point that in combination with conventional power control schemes balances the downlink transmission power on reused frequencies in order to balance co-channel interference in a multi-cell environment. The power balancing scheme dynamically assigns a token to or takes a token away from an individual reused radio channel based on quality of, or based on transmission power in the channel. A token, if taken away from the channel, inhibits conventional power control thereby freezing the transmission power in the channel on its current power level. A token, if assigned or re-assigned to channel, re-assumes conventional power control thereby allowing dynamic variation of the transmission power in the channel in accordance with the conventional power control.01-08-2009
20100085946ADAPTIVE TRANSMISSIONS IN WIRELESS NETWORKS - A network includes an access point and a station. The station transmits to the access point a current clear-to-send packet at a current time during a current exchange. The transmission is based on success or failure of a previous exchange during which a previous clear-to-send packet was transmitted at a previous time.04-08-2010
20120236833Systems and Methods for Allocating and Transmitting Uplink Data Block Transmissions with Piggy-Backed ACK/NACK Bitmap - Systems and methods for allocating and transmitting uplink data block transmissions with piggy-backed ACK/NACK bitmap field are provided. In a specific example, a mobile station receives a request for a data block combined with control information (DBCCI). The mobile station responds by transmitting a DBCCI using at least one timeslot corresponding to a timeslot used for the request. At least some of the time, the mobile station sends data blocks in an order different than that would be otherwise used (e.g. block sequence order).09-20-2012
20120236832TRANSMISSION STATION, RECEIVING STATION, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - A transmission station includes a communication section configured to perform transmission and reception of data with a receiving station by using a plurality of wireless carriers whose frequency bands differ from one another, and a processor configured to obtain reception qualities of a plurality of wireless carriers which are reported from the receiving station, and configured to assign a gap for each of the wireless carriers, in accordance with the obtained reception quality of the each of the wireless carriers, the gap being a period over which transmission of the data is stopped.09-20-2012
20130163568METHOD AND SYSTEM FOR RESOURCE ALLOCATION IN DISTRIBUTED TIME-DIVISION MULTIPLEXING SYSTEMS - In one exemplary embodiment, a system for resource allocation in a distributed time-division multiplexing (TDM) system comprises a plurality of users with each user having a corresponding weight and taking turns to use the resources of the distributed TDM system. The each user repeats the execution of obtaining a resource usage right, reading a first message of a user having an active weight sum and a system benefit level; computing a resource usage quantity of the user, computing a resource residual quantity of the user, updating the active weight sum, and storing an individual benefit basis of the user; dividing the resource residual quantity by an updated value of the active weight sum and accumulating a divided result to the system benefit level; and transferring a second message having the updated value of the active weight sum and an accumulated value of the system benefit level to a next user obtaining the resource usage right.06-27-2013
20130163571MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS AND COMMUNICATION METHOD - To provide a mobile communication system and communication method for efficient scheduling to be performed when a base station apparatus notifies a mobile station apparatus of a plurality of downlink control information formats in the same subframe and/or for some particular time period, in a mobile communication system comprised of a base station apparatus and a mobile station apparatus, the base station apparatus notifies the mobile station apparatus of a plurality of downlink control information formats including at least one downlink control information format including instructions for transmission of a sounding reference signal and a parameter in the same subframe, and the mobile station apparatus transmits a sounding reference signal set based on the parameter to the base station apparatus when among the plurality of downlink control information formats, a predetermined downlink control information format includes instructions for transmission of a sounding reference signal and the parameter.06-27-2013
20130163573TRANSMISSION DEVICE AND TRANSMISSION METHOD - Provided are a transmission device and transmission method that are capable of allowing leeway in data reception processing on the receiving side regardless of the position in time of a resource region to which control information, which is contained in resource allocation information for transmission data, is mapped. A setting unit (06-27-2013
20110026498Data Communication Method, Wireless Communication System, and Base Station - The invention provides a wireless communication system. In one embodiment, the wireless communication system comprises a base station and user equipment. The base station transmits data to user equipment via a plurality of the component carriers comprising a series of data transmission cycles, interleaves starting time of a plurality of active periods of the component carriers in each data transmission cycle in an order, and sends control data to the user equipment via the component carriers during the active periods of the component carriers. The user equipment receives the control data via the component carriers during the active periods of the component carriers.02-03-2011
20110044296UPLINK POWER CONTROL FOR MULTIPLE TRANSMIT ANTENNAS - Techniques for controlling the transmit power of a user equipment (UE) using multiple antennas for uplink transmission are described. In one design, the UE receives at least one transmit power control (TPC) command for the multiple antennas. The UE adjusts the transmit power for each antenna based on the TPC command(s). In one design, the UE receives a single TPC command for all antennas and adjusts the transmit power for each antenna based on this TPC command. All antennas may then have equal transmit power. In another design, the UE receives multiple TPC commands for multiple antenna groups, one TPC command for each antenna group. Each antenna group may include one antenna or more than one antenna. The UE adjusts the transmit power for each antenna group based on the TPC command for that antenna group. All antennas in each antenna group may have equal transmit power.02-24-2011
20100014490MOBILE STATION APPARATUS AND BASE STATION APPARATUS - One aspect of the present invention relates to a mobile station apparatus, including: a first time multiplexing unit configured to time multiplex an uplink CQI measurement pilot channel for measuring an uplink CQI and an uplink L1/L2 control channel; a second time multiplexing unit configured to time multiplex a shared data channel and a shared data channel demodulation reference signal for demodulating the shared data channel; and a TTI multiplexing unit configured to time multiplex a CQI measurement reference signal and a data transmission signal into different TTIs, the CQI measurement reference signal resulting from the time multiplexing of the uplink CQI measurement pilot channel and the uplink L1/L2 control channel, the data transmission signal resulting from the time multiplexing of the shared data channel and the shared data channel demodulation reference signal.01-21-2010
20130188618Synchronization in Base Stations and Wireless Networks - A base station transmits subframes of downlink carriers in a primary cell group and downlink carriers in a secondary cell group in substantial time alignment with each other. A wireless device transmits subframes of uplink carriers in the primary cell group in substantially time alignment with each other. The wireless device transmits subframes of uplink carriers in the secondary cell group in substantially time alignment with each other. The subframes transmission timing for uplink carriers in the primary cell group and in the secondary cell group employ different synchronization signals as a timing reference and different timing advance commands.07-25-2013
20130016705ENHANCING SOUNDING REFERENCE SIGNALS (SRS) - A method for enhancing a sounding reference signal (SRS) in a non-root wireless communication device is disclosed. The method determines that all SRS transmissions for the wireless communication device are to occur in an uplink pilot time slot (UpPTS) portion of a transition subframe. The method also determines whether available uplink bandwidth for the UpPTS portion is greater than available uplink bandwidth for a normal uplink subframe. A current SRS is transmitted using the available uplink bandwidth for UpPTS portion when the available uplink bandwidth for the UpPTS portion is greater than available uplink bandwidth for the normal uplink subframe.01-17-2013
20080247364CYCLIC DELAY DIVERSITY AND PRECODING FOR WIRELESS COMMUNICATION - Techniques for sending a MIMO transmission using a combination of cyclic delay diversity and precoding are described. A set of delays (e.g., zero delay, small delay, and large delay) for cyclic delay diversity and a set of precoding matrices may be supported. In one design, a Node B may select a delay specifically for a UE or for a set of UEs served by the Node B. In another design, a UE may evaluate different combinations of precoding matrix and delay, determine the combination with the best performance, and send this combination of precoding matrix and delay to the Node B. The Node B may perform precoding with the precoding matrix and then processing for cyclic delay diversity based on the selected delay. Alternatively, the Node B may perform processing for cyclic delay diversity based on the selected delay and then precoding with the precoding matrix.10-09-2008
20090175249ALTERNATE CHANNEL FOR CARRYING SELECTED MESSAGE TYPES - A method for communicating information in a base station is disclosed. A reverse link channel is allocated to be a shared acknowledgement channel for receiving acknowledgement information. Acknowledgement information associated with data payload from a field unit is then received over the shared acknowledgement channel by the base station.07-09-2009
20110122850RANDOM ACCESS BURST TRANSMISSION SCHEME - An apparatus for transmitting and receiving signals in a wireless telecommunication system and to a method for transmitting random access bursts in such an apparatus. The apparatus includes a transmitter for transmitting random access bursts, a receiver for receiving acknowledgement information confirming a successful transmission of a random access burst, a decision unit for deciding if acknowledgement information has been received, and a control unit for randomly choosing a time point for an attempt to retransmit said random access burst from an interval if no acknowledgement information has been received after a random access burst had been transmitted.05-26-2011
20110280225MEDIUM TIME ALLOCATION AND SCHEDULING USING ISO-ZONE STRUCTURED SUPERFRAME FOR QOS PROVISIONING IN WIRELESS NETWORKS - Allocation of contiguous blocks of airtime for data or airtime transmission can lead to large maximum service intervals for an application stream. This may result in a large delay bound where large blocks of contiguous MAS blocks other applications from meeting their low-latency requirements. A method and network that overcomes at least the shortcomings of known methods includes transmitting information over a wireless network. This includes the steps of: organizing the superframe into allocation zones; organizing the allocation zones into iso-zones; generating an allocation map; determining a periodic service interval and medium time based on a TSPEC, a delay requirement, and local resource of an application stream; searching for transmission opportunity that accommodates the periodic service interval and the medium time required based on the allocation map; transmitting information in the superframe upon finding transmission opportunity in the searching step.11-17-2011
20110280224TRANSCIEVER DEVICE FOR ON-BODY AND OFF-BODY COMMUNICATIONS - The present invention relates to a transceiver device for processing a medium access control (MAC) protocol used by a transceiver. The transceiver has a first antenna system for on-body communications and a second antenna system for off-body communications, the transceiver device being designed to reserve one or more data payloads for on-body communications and to allocate the first antenna system to the transceiver for the interval of time occupied by these data payloads, and/or to reserve one or more data payloads for off-body communications and to allocate the second antenna system to the transceiver for the interval of time occupied by these data payloads. An advantageous result of this is that the optimally matched antenna system is available for on-body communications and off-body communications respectively, collisions between data payloads on the radio channel being prevented within the network, and the throughput of data thus being increased and, at the same time, energy consumption being reduced for the transceiver.11-17-2011
20090147757BASE STATION DEVICE AND MOBILE STATION DEVICE - There are provided a base station device and a mobile station device for increasing the speed of cell search by introducing identification of TTI timing into the cell search. In the base station device (06-11-2009
20090046671METHOD AND APPARATUS FOR DETERMINING CELL TIMING IN A WIRELESS COMMUNICATION SYSTEM - Techniques for determining the timing of a cell in a wireless communication system are described. A user equipment (UE) may obtain received samples that include at least one synchronization signal generated based on a cell identity (ID) of a cell. The UE may correlate the received samples with the at least one synchronization signal in the time domain at different time offsets to obtain energies for multiple timing hypotheses. The UE may identify at least one detected peak based on the energies for the multiple timing hypotheses. The UE may then update a set of candidate peaks based on the at least one detected peak and may identify a candidate peak with signal strength exceeding the signal strength of a peak being tracked. The UE may provide the timing of the identified candidate peak as the timing of the cell.02-19-2009
20110299509SCHEDULING AND PROTECTION OF QUIET PERIODS IN A QUIET ZONE FOR INCUMBENT SIGNAL DETECTION - A method and system for scheduling and protecting quiet periods (QP) in a quiet zone (12-08-2011
20110299508WIRELESS COMMUNICATION SYSTEM, WIRELESS TRANSMITTING APPARATUS, WIRELESS RECEIVING APPARATUS, WIRELESS TRANSMISSION METHOD, AND WIRELESS RECEPTION METHOD - The channels of A-EUTRA component carriers on which the mobile station devices of EUTRA do not stand by are configured without almost changing the conventional EUTRA channel configurations. A wireless transmitting apparatus, which performs radio transmission to a plurality of wireless receiving apparatuses by assigning one or more component carriers to a downlink, includes a control channel element processing section 12-08-2011
20110128942METHOD FOR TRANSMITTING CONTROL INFORMATION ABOUT DOWNLINK MULTIPLE CARRIERS IN A WIRELESS COMMUNICATION SYSTEM - A method for transmitting uplink control information in a wireless communication system is disclosed. The method includes receiving one or more downlink component carriers among N downlink component carriers created by dividing a multi-carrier by an integer N, and transmitting control information about the received one or more downlink component carriers in one or more uplink component carriers among N uplink component carriers created by dividing a multi-carrier by the integer N, wherein the control information about the received one or more downlink component carriers is distributed equally or unequally to the one or more uplink component carriers and the control information includes at least one of a Channel Quality Information/Precoding Matrix Index (CQI/PMI), an ACKnowledgment/Negative ACKnowledgment (ACK/NACK), and a Rank Indication (RI).06-02-2011
20110128941BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND COMMUNICATIONS CONTROL METHOD - A base station apparatus in a radio communications system is disclosed. The radio communications system has a mobile station apparatus and the base station apparatus in communication with the mobile station apparatus to which is applied a scheduling scheme which allocates a radio resource for each of constant periods.06-02-2011
20120087350Method and Apparatus for Low-Power, Long-Range Networking - An endpoint device may be operable to transmit and receive data wirelessly via a medium to which access is time-division multiplexed into a plurality of repeating windows. A first window of the plurality of repeating windows may be time-division multiplexed into a plurality of timeslots utilized for transmitting beacon signals. A second window of the plurality of repeating windows may be time-division multiplexed into a plurality of timeslots utilized for transmitting alarm signals. The endpoint may be assigned one of the first timeslots and, when an alarm condition is present, select one of the second timeslots for transmitting an alarm signal based on the assigned first timeslot, and based on a hash function. The endpoint may then transmit an alarm signal during the second timeslot. The endpoint may be operable to synchronize its local clock by listening to beacons transmitted by other endpoints.04-12-2012
20120087353AUTOMATIC REVERSE CHANNEL ASSIGNMENT IN A TWO-WAY TDM COMMUNICATION SYSTEM - A method and apparatus for communication is disclosed. Information is received on a downlink channel in a time interval. On a condition that an explicit allocation of a first uplink channel is received, feedback information regarding the received information is transmitted on the first uplink channel, wherein the feedback information is transmitted with user data on the first uplink channel. On a condition that an explicit allocation of the first uplink channel is not received, feedback information regarding the received information is transmitted in a time interval on a second uplink channel, wherein an explicit allocation of the second uplink channel is not received, wherein the time interval on the second uplink channel is a pre-determined time period away from the time interval on the downlink channel.04-12-2012
20110142012METHOD OF ALLOCATING CHANNEL TIME FOR VARIABLE BIT RATE (VBR) TRAFFIC, APPARATUS FOR PROCESSING DATA AND METHOD THEREOF - A method of allocating a variable bit rate traffic in an unallocated channel time is disclosed. The present invention includes determining whether an unallocated channel time is great enough to allocate the channel time for VBR traffic when receiving a request for a channel time for the VBR traffic and allocating the VBR traffic channel time in a portion of the unallocated channel time. The method allocates an unallocated channel time by considering a channel time request of VBR traffic, thereby securing resource operation and management efficiency within a beacon interval.06-16-2011
20090086686METHOD TO SIMPLIFY UPLINK STATE FLAG (USF) DECODING COMPLEXITY FOR REDHOT A AND B WIRELESS TRANSMIT/RECEIVE UNITS - A method and apparatus allow for reliable and low-complexity decoding of EGPRS2 communication bursts when RTTI and BTTI equipment operate on the same timeslot(s). Various configurations for the Uplink State Flag (USF) mapping employ adjustable bit swapping of some or all USF channel-coded bits in communication bursts. Configurations that allow for an adjustable use of the symbol mapping stage in the transmitter and receiver to allow for more throughput and/or reduced complexity are also disclosed. Admissible mapping rules are known to the receiver and transmitter and therefore reduce the complexity of decoding this information. In order to increase throughput for EGPRS2 communication bursts, RTTI transmissions of different modulation types or EGPRS/EGPRS2 modulation and coding schemes during a BTTI interval are introduced that allow for reliable USF decoding and reduced decoder complexity.04-02-2009
20110286435METHOD AND APPARATUS FOR A SCHEDULER FOR A MACRO-DIVERSITY PORTION OF A TRANSMISSION - A method, apparatuses, and system of broadcasting content data in a macro-diversity region of a data frame includes receiving a stream of transport packets. Selecting at least one burst size, from amongst a set of a plurality of predetermined burst sizes. Allocating one or more data bursts with the selected burst size to the macro-diversity region of the data frame, each data burst comprising at least a portion of the received transport packets and wherein the at least one burst size is selected so as to minimize a number of data bursts allocated to the macro-diversity region. Then communicating the allocation of data bursts to a transmitter that includes the allocation of data bursts in the macro-diversity region of a data frame transmitted by the transmitter.11-24-2011
20110286436RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND RADIO COMMUNICATION METHOD - Each of mobile station apparatuses 11-24-2011
20120155439NEIGHBOR SCANNING IN WIRELESS LOCAL AREA NETWORKS - An access point includes a transmitter configured to transmit signals, a receiver configured to receive signals, and a timing information device. The timing information device is configured to receive a timing information request from a station associated to the access point, receive timing information for a beacon signal sent by a second access point, and report the timing information to the station, The timing information includes a time difference relative to a known reference time for transmission of the beacon signal and the time difference is an offset in timing units.06-21-2012
20120155437METHOD AND APPARATUS FOR AVOIDING IN-DEVICE COEXISTENCE INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for coexistence interference avoidance in a UE equipped with an LTE radio and an ISM radio includes applying a TDM solution in the UE for avoiding coexistence interference between the LTE radio and the ISM radio, the TDM solution defining a period of the TDM solution allocated for the LTE radio and another period of TDM solution allocated for the ISM radio. The method further includes the UE skipping incrementing a transmission counter associated with a Hybrid Automatic Repeat Request (HARQ) process if a corresponding uplink transmission is scheduled to occur during the period allocated for the ISM radio.06-21-2012
20100177746SEMI-STATIC RESOURCE ALLOCATION TO SUPPORT COORDINATED MULTIPOINT (COMP) TRANSMISSION IN A WIRELESS COMMUNICATION NETWORK - Techniques for supporting Coordinated MultiPoint (CoMP) transmission are described. For CoMP transmission, multiple cells may simultaneously send one or more data streams to one or more UEs on the same time-frequency resources based on short-term channel feedback from at least one UE to at least two cells. In an aspect, a semi-static configuration may be used by a set of cells for CoMP transmission to a UE. The semi-static configuration may indicate resource elements available to the set of cells to send CoMP transmission to the UE. The available resource elements may be determined based on a maximum number of TDM control symbols for all cells in the set and resource elements used for cell-specific reference signals by the cells in the set. A cell in the set may send data on the available resource elements to the UE for the CoMP transmission.07-15-2010
20080279156ORTHOGONAL HADAMARD CODE BASED SECONDARY SYNCHRONIZATION CHANNEL - A secondary synchronization channel (S-SCH) for E-UTRA downlink is applied to any orthogonal frequency division multiple access (OFDMA) based system to reduce interference on S-SCHs among sectors of the same Node-B in an evolved universal terrestrial radio access (E-UTRA) system.11-13-2008
20110292917SYSTEM AND METHOD FOR TIMING ADJUSTMENT TO PROTECT CQI - Certain aspects of the present disclosure propose methods for protecting channel quality indicator (CQI) modulation symbols in a subframe (e.g., a localized frequency division multiplexing (LFDM) subframe). For some aspects, a timing adjustment method may be utilized to adjust time of a UE with respect to an eNodeB. The timing adjustment method may introduce a positive time offset to be used for reducing time mismatch between the UE and the eNodeB. In another aspect, a buffer may be used at the eNodeB to store symbols received by the eNodeB before removing the cyclic prefix information from the subframe. The eNodeB may use the stored symbols and an artificial time delay to ensure that the CQI information is protected. For some aspects, the CQI modulation symbols may not be located at the beginning of an LFDM symbol.12-01-2011
20110292918BROADCASTING METHOD, ACCESS CONTROL APPARATUS AND RADIO APPARATUS - A processing unit generates the timing information on the timing with which each of radio apparatuses is to synchronize in communications between the radio apparatuses when each of radio apparatuses broadcasts a signal. A modem unit, an RF unit and an antenna broadcast the thus generated timing information. The processing unit further generates the cycle information on a broadcast cycle in which each radio apparatus broadcasts the signal in communication between the radio apparatuses. The modem unit, the RF unit and the antenna broadcast the cycle information together with the timing information.12-01-2011
20110292916RADIO BASE STATION AND RADIO RESOURCE ALLOCATION METHOD - Provided are a radio packet type determining section that determines at least whether a radio packet is a first transmission packet that is allocated persistently at predetermined time intervals or a retransmission packet among radio packets transmitted to a radio communication terminal, a first transmission interval control section that controls a transmission interval of each first transmission packet so as to disperse the first transmission packet and a retransmission packet of a radio packet index different from that of the first transmission packet, a retransmission interval control section that controls a transmission interval of each retransmission packet, and a radio resource allocation section that performs allocation of radio resources based on the transmission interval of each first transmission packet and the transmission interval of each retransmission packet.12-01-2011
20110292915MULTIPLE CARRIER ACTIVATION/DEACTIVATION IN WIRELESS COMMUNICATIONS - Systems, methods and apparatuses are provided that facilitate selecting resources, such as time slots, subframes, etc., for performing bandwidth switching related to activating and/or deactivating one or more carriers. A data portion of one or more subframes can be selected for performing bandwidth switching. In addition, a device can determine whether one or more downlink grants are received in the one or more subframes, and can avoid selecting such subframes. The device can alternatively perform the bandwidth switching and request retransmission of the data portion. Additionally or alternatively, the device can determine a type of the one or more subframes and/or signals transmitted in the one or more subframes to determine whether to perform bandwidth switching in the subframes. The bandwidth switching can include changing a sampling rate, reconfiguring frequency filters, modifying a local oscillator, etc.12-01-2011
20120230303ARCHITECTURE AND METHODS FOR COEXISTENCE OF WIRELESS RADIOS HAVING DIFFERING PROTOCOLS - Embodiments of systems and methods for the coexistence of wireless radios having differing protocols are generally described herein. Other embodiments may be described and claimed. In some embodiments systems and methods for synchronizing clocks between two radios, and using a signal to notify one of the radios to refrain from transmitting for a timeperiod are described.09-13-2012
20090279514APPARATUS AND METHOD FOR TRANSMISSION OPPORTUNITY IN MESH NETWORK - An apparatus and method of transmission opportunity in a mesh network is disclosed. A beacon timing from a receiver MP is received. The beacon timing includes a beacon reception timing of a received beacon frame that is received by the receiver MP from a neighboring MP of the receiver MP. A transmission opportunity is determined in order not to be extended across the beacon reception timing.11-12-2009
20100195629EFFICIENT ACK TRANSMISSION FOR UPLINK SEMI-PERSISTENT SCHEDULING RELEASE IN LTE - A method, an apparatus, and a computer program product for wireless communication are provided in which an uplink semi-persistent scheduling release is received an HARQ ACK is determined whether to be transmitted in response to the received uplink semi-persistent scheduling release.08-05-2010
20100142491Multi-Slot Packet Data Transfer Method - A multislot packet data transfer method (06-10-2010
20090103498Adaptive Receiver Method and Apparatus - Receiver resources are allocated based on how subframes are allocated within in a frame between downlink and uplink transmissions and how often the receiver is expected to report feedback information associated with the downlink transmissions. Additional time is available for processing received data blocks if the feedback information derived from those blocks must be reported later than expected due to the unavailability of uplink subframes. According to one embodiment, received signals are processed by receiving transmission configuration information indicating how downlink and uplink subframes are allocated within a frame in the time domain. Based on the transmission configuration information, the receiver determines whether a delay that exceeds a feedback reporting interval assigned to the receiver will occur when reporting feedback information associated with the downlink subframes. Receiver resources are allocated based on whether a delay will occur when reporting the feedback information.04-23-2009
20090296665Method of Indicating Mobile Station Capability to a Network - An indication is sent from a mobile station to a network regarding the capability of the mobile station to receive or transmit on two or more carriers simultaneously. The network determines an ideal multi-carrier multi-slot capability of the mobile station from an existing capability indication for single carrier transmission mode of the mobile station; and the mobile station sends in an additional field an indication in respect of a reduction in number of time slots from the ideal multi-carrier multi-slot capability determined by the network.12-03-2009
20080279155Adaptive Scheduling in a Wireless Network - A method of adaptively scheduling communications in a wireless mesh network including a plurality of network nodes includes generating a network routing scheme based on a topology of the wireless mesh network, generating a communication schedule for the wireless mesh network, and automatically updating the communication schedule in response to detecting a change in a transmission requirement of at least one of the plurality of network nodes. The act of generating a communication schedule includes defining a communication timeslot of a predefined duration and defining a plurality of superframes as repeating cycles of a certain number of consecutively scheduled communication timeslots.11-13-2008
20110206017METHODS AND APPARATUSES FOR BEACON TRANSMISSION - Various methods and apparatuses for beacon transmission in an ad-hoc peer-to-peer network are disclosed. In one aspect, an apparatus for communication is disclosed, the apparatus comprising a processing system configured to identify a plurality of successive beacon transmission periods separated by at least one non-beacon transmission period and to select one or more beacon transmission periods from the plurality of successive beacon transmission periods and a transmitter configured to transmit one or more beacons during each of the selected beacon transmission periods.08-25-2011
20090080385CELL SEARCH METHOD, FORWARD LINK FRAME TRANSMISSION METHOD, APPARATUS USING THE SAME AND FORWARD LINK FRAME STRUCTURE - Provided are a cell search method, a forward link frame transmission method, an apparatus using the methods, and a forward link frame structure in an Orthogonal Frequency Division Multiplexing cellular system, wherein the time it takes to perform a cell search and the complexity of the cell search can be reduced. The cell search apparatus includes a sync acquirer which receives a signal according to a forward link frame comprising a plurality of sync channel symbols each having different intervals between the adjacent sync channel symbols and achieves synchronization of the sync channel symbols using a sync channel of the received signal, and a boundary detector which detects a frame boundary using an interval pattern between the sync channel symbols, based on the achieved synchronization.03-26-2009
20100265925Segmented Beamforming - A method for beamforming in a communication network includes generating a plurality of beamforming training (BFT) units associated with a beamforming session between a pair of devices, where each of the plurality of BFT units corresponds to a different beamsteering vector, causing a first non-zero subset of the plurality of BFT units to be transmitted during a first timeslot, and causing a second non-zero subset of the plurality of BFT units to be transmitted during a second timeslot, where the first time timeslot and the second timeslot are not contiguous.10-21-2010
20090213817Resource allocation method and apparatus for reducing uplink feedback overhead in a wireless communication system - A method and apparatus for reducing an uplink feedback overhead in a wireless communication system are provided. The method includes scheduling DownLink traffic and determining a transmission period, and allocating UpLink feedback resources considering the DL traffic transmission period.08-27-2009
20090201889INTEGRATED SCHEDULING OF UNICAST AND MULTICAST TRAFFIC IN RELAY-ENABLED WIRELESS NETWORKS - A wireless network with integrated scheduling of unicast and multicast users in a relay-enabled two-hop wireless network is disclosed. In this system, users with finite buffers are considered and scheduled over multiple channels in an OFDMA-based wireless network. The gain-specific and efficient scheduling system helps leverage diversity and spatial reuse gains from these networks. The system is applicable to both unicast and multicast traffic and leverages diversity and spatial reuse gains simultaneously to optimize the target network with both unicast and multicast flows. The integrated scheduling system strikes a good balance in delivering efficient performance to unicast and multicast flows.08-13-2009
20110261793CHANNEL RESERVATION IN FLEXIBLE WIRELESS NETWORKS - Channel access time slots are reserved in a wireless network employing a flexible medium access control (MAC) protocol. At least a type and a mode of the channel reservation are determined (S10-27-2011
20100002657Method and System for Generating Antenna Selection Signals in Wireless Networks - Embodiments of the invention describe a method for joint resource blocks assignment and antenna selection (AS) in a wireless communication network, the network comprising user equipment (UE), wherein the UE comprises a plurality of subsets of antennas, the UE is configured to transmit a sounding reference signal (SRS) from a subset of antennas at a time. The method transmits a first SRS from a first subset of antennas and a second SRS from a second subset of antennas. Upon receiving, in response to the transmitting of the first SRS and the second SRS, information related to an optimal subset of antennas, and information related to an optimal subset of resource blocks, the method transmits a data symbol from the optimal subset of antennas using the optimal resource block.01-07-2010
20120294291APPARATUS AND METHODS FOR NETWORK ASSISTED HYBRID NETWORK OPERATION - Methods and apparatus for minimizing scheduling collisions between networks. In one embodiment, the networks are substantially unsynchronized, and during hybrid network operation (e.g., LTE and CDMA 1× operation), a mobile device can place CDMA 1× voice calls while registered with the LTE network. However, since the LTE and CDMA 1× networks are not coordinated, the mobile device will experience scheduling collisions. In one variant, the LTE network accounts for predictable behaviors (such as CDMA 1× paging), and schedules low priority tasks during likely time interval conflicts. Consequently, even though the mobile device must tune away from the LTE network to check CDMA 1× pages, overall LTE network performance is minimally affected.11-22-2012
20110170522WIRELESS TRANSMISSION METHOD FOR SPATIAL DIVISION MULTIPLE ACCESS SYSTEM - A wireless transmission method comprises the steps of: determining transmission time slots and start antenna indexes of a plurality of stations in a spatial division multiple access system according to the number of antennas of the plurality of stations; broadcasting a control frame signal to the plurality of stations and waiting for requests to transmit signals from the plurality of stations, wherein the control frame signal includes the transmission time slots and start antenna indexes of the plurality of stations; receiving the requests to transmit signals from the plurality of stations; and broadcasting a clear to transmit signal to the plurality of stations based on the received request to transmit signals. The requests to transmit signals of the plurality of stations, which are transmitted based on the transmission time slots and start antenna indexes of the plurality of stations, conform to a multi-input multi-output transmission standard of the access point.07-14-2011
20100054214ACCESS POINT, WIRELESS COMMUNICATION STATION, WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD - An access point for establishing wireless connection with one or more wireless communication stations which can perform intermittent reception operation, based on a packet transmission system which allocates wireless bands by CSMA/CA, has: unit for describing, in a same packet or in respective packets, buffering information on a downlink packet addressed to a subordinate wireless communication station currently in an intermittent reception state, and transmission prohibition period information indicating a period where transmission from the subordinate wireless communication station is prohibited; unit for transmitting the instruction described packet, in which the description has been made, to the subordinate wireless communication station; unit for making a state of the access point transit to a Doze state immediately after the instruction described packet is transmitted, or when a predetermined number of downlink packets are transmitted; and unit for making a state of the access point transit to an Awake state when the transmission prohibition period elapses from the time of transmission of the packet in which the prohibition period information is described.03-04-2010
20100124205Distributed adaptive scheduling of communications among nodes in a mobile ad hoc network - Communications in a mobile network are scheduled by defining reservation frames having time slots during which network nodes can transmit certain traffic loads while avoiding interference. The nodes maintain maps that identify the slots as either free or reserved based on each node's existing reservations, and reservation information the node receives from neighboring nodes. A node wishing to transmit traffic determines the number of slots required to carry the traffic, selects a first set of slots from among those identified in its maps as free, and transmits a reservation initiation message (RIM) that identifies the first set of slots. Nodes receiving the RIM determine which, if any, of the first set of slots are already reserved based on their own maps, and transmit counter reservation initiation messages (CRIMs) if any slots are reserved. The CRIMs also identify those slots that the CRIM transmitting nodes determine to be currently free.05-20-2010
20090147756COORDINATING COMMUNICATIONS AMONG WIRELESS PERSONAL AREA NETWORK DEVICES - Embodiments of a multi-radio wireless communication device having two or more radio modules are generally described herein. In some embodiments, an initiating link manager may generate and transmit messages to a responding link manager. The messages may include a desired slot offset value and a desired point in time to perform slot adjustment. The responding link manager may return with a message indicating acceptance or nonacceptance of the desired slot offset value. If the responding link manager accepts the desired slot offset value, the message may also include whether the slot adjustment may be implemented at the desired point in time or incrementally. Other embodiments may be described and claimed.06-11-2009
20110170521Dynamic Downlink Beamforming Weight Estimation for Beamforming-Space Time Code Transmissions - Techniques are provided to improve wireless beamformed communication between first and second wireless communication devices. At a plurality of antennas of the first wireless communication device (e.g., a base station) uplink transmissions sent from the second wireless communication device (e.g., a client or mobile device or station) are received. The first wireless communication device generates a downlink beamforming weight vector from received uplink transmissions, and computes a covariance matrix for received uplink transmissions. The first wireless communication device stores history information based on the covariance matrices for received uplink transmissions. The first wireless communication device computes first and second beamforming-space time code weight vectors based on the covariance matrix for an uplink transmission received in a current frame and the history information. The first wireless communication device uses the first and second beamforming-space time code weight vectors for a beamforming-space time code transmission technique to send a downlink transmission to the second wireless communication device.07-14-2011
20100128700SYSTEM AND METHOD TO IMPLEMENT SYNCHRONOUS CHANNEL TIMING IN A WIRELESS COMMUNICATIONS NETWORK - A system and method to implement synchronous channel timing are disclosed. The method comprises establishing a session time interval. In addition, the method comprises establishing a first time interval within the session time interval for transmitting a first data packet.05-27-2010
20110170523DIRECTED BEACONING USING POLLING FOR DEVICES WITH DIFFERENT CAPABILITIES - A method and system for directed beaconing in a superframe structure (07-14-2011
20100124208WIRELESS COMMUNICATION SYSTEM AND METHOD OF CALLING TERMINAL - A wireless communication system, including: 05-20-2010
20100124207Distributed medium access control (DMAC) for Mobile Ad Hoc networks - Message or traffic data is transmitted from a given radio or node for reception by one or more other nodes in a communications network, by arranging the node for transmitting the data according to a selected one of a number of different medium access protocols. The medium access protocol selected for a given message or traffic is determined according to one or more of (a) the size of the traffic, (b) the priority of the traffic, (c) the periodicity of the traffic, and (d) whether the traffic is broadcast or unicast to the other nodes in the network. Each radio includes one or more processor and memory modules configured to output messages or traffic for transmission from the radio according to the selected medium access protocol. By using distributed scheduling and traffic control to protect against hidden nodes, the radios can maintain agile portability in tactical urban environments.05-20-2010
20100124206TIME-DIVISION MULTIPLEXED PILOT SIGNAL FOR INTEGRATED MOBILE BROADCASTS - A pilot channel signal for time-division multiplexing with one or more traffic channel signals in a broadcast/multi-cast signal and for code-division multiplexing with a continuously transmitted pilot channel signal is described. In an exemplary method for transmitting a broadcast/multicast signal, a pilot symbol sequence is obtained for each slot of one or more frames of the broadcast/multicast signal, so that the pilot symbol sequence varies for each slot of a given frame. The pilot symbol sequence for each slot is spread with a channelization code, and the spread pilot symbol sequence for each slot is scrambled, using a scrambling code, to form a first pilot channel signal. The first pilot channel signal is transmitted so that it is time-division multiplexed with one or more traffic channel signals transmitted during each slot and code-division multiplexed with a second pilot channel signal transmitted during all slots of the one or more frames.05-20-2010
20100118835METHOD AND APPARATUS FOR CHANNEL ACCESS IN A WIRELESS COMMUNICATIONS SYSTEM - A method of wireless communications is provided. The method includes transmitting a channel time allocation request from a first device to a second device, wherein the channel time allocation request comprises a list of devices to be trained by the first device; receiving a channel time allocation granted by the second device; and transmitting, from the first device, at least one training packet to at least one device in the list of devices to be trained during the channel time allocation granted by the second device. An apparatus for performing the method is also disclosed.05-13-2010
20100118838Heterogeneous back-off mechanism to decrease latency in mobile IP telephony - A heterogeneous back-off algorithm wherein latency-intolerant messages follow a linear back-off and other messages follow an exponential back-off protocol is disclosed. Typically exponential back-off techniques are used to schedule retransmissions to increase the probability of successful transmission in temporally high contention scenarios. However, exponential back-off can create an exponential increase in the transmit latency. For transmitting latency-intolerant messages like handoff messages large latency is not acceptable therefore a heterogeneous back-off algorithm using both back-off protocols is proposed.05-13-2010
20100265923REAL-TIME WIRELESS COMMUNICATION METHOD FOR GUARANTEEING QUALITY OF SERVICE IN WIRELESS PERSONAL AREA NETWORK - Provided is a real-time wireless communication method for guaranteeing quality of service in a wireless personal area network (WPAN). When real-time data transmitted in a time slot of a current superframe has an error, a terminal, which was designated as a coordinator from among a plurality of terminals in a WPAN, allocates a time slot for retransmitting the real-time data to a next superframe and retransmits the real-time data in the allocated time slot of the next superframe. Therefore, quality of a real-time communication service in a WPAN can be guaranteed.10-21-2010
20090310573 DISTRIBUTED WIRELESS MEDIUM ACCESS CONTROL PROTOCOL FOR AD-HOC NETWORKS - A distributed wireless medium access control protocol is disclosed. According to the disclosed wireless medium access control protocol the medium access time is partitioned into equal sized slots, and a predetermined number of the slots forming a superframe. The protocol defines beaconing devices and passive devices. Each beaconing device designates one of the slots in the superframe as its beacon medium access slot, and broadcasts during that beacon medium access slot a beacon frame to other devices in wireless range of that beaconing device. A beacon frame collision detection and resolution procedure, and a procedure for reserving access time for communication between devices are also disclosed.12-17-2009
20100329219Method for Expression Evaluation and Network Node Implementing Such a Method - Method and network node (12-30-2010
20090274125METHOD AND SYSTEM FOR ORGANIZING THE CELLS OF A WIRELESS COMMUNICATION SYSTEM AND ALLOCATING RESOURCES TO PROVIDE MULTIMEDIA BROADCAST SERVICES - A system and method for configuring the system for configuring a wireless multi-cell communication to provide multimedia broadcast services (MBMS) to a plurality of wireless transmit/receive units (WTRUs). The cells of the communication system are organized into a plurality of sets of one or more cells. Resource units are assigned to each set of cells in the communication system. The assigned resource units are allocated in each cell of the communication system for MBMS transmission. The WTRUs receive information indicating how to access the resource units allocated for MBMS transmission. The WTRUs receive the MBMS from one or more of the cells of the communication system.11-05-2009
20100118837USING SYNCHRONIZATION FRAMES FOR MESH NETWORKING WITH PICONETS - Certain aspects provide a technique for managing transmissions in a wireless network. The technique generally provides for an access terminal to transmit synchronization packets containing timing information regarding an existing piconet. The synchronization packets may contain an indication of resources of the piconet allocated to the access terminal by an access point.05-13-2010
20100118839CONVEYING INFORMATION THROUGH PHASE OFFSET ON PSS RELATIVE TO DL-RS - Systems and methodologies are described that facilitate conveying information utilizing a constant phase offset on Primary Synchronization Signal (PSS). In general, the subject innovation can employ a fixed set of beams and phases in which a PSS and a Secondary Synchronization Signal (SSS) can be transmitted with the fixed set of beams and phases. Furthermore, the phase offset for PSS and SSS can be the same such that legacy user equipment is unaffected or aware of such transmissions.05-13-2010
20100118834DEVICE BEACON FOR COMMUNICATION MANAGEMENT FOR PEER TO PEER COMMUNICATIONS - A wireless communication device transmits a device beacon in accordance with a system timing of a wireless wide area network (WWAN). For one example, the beacon is transmitted relative to WWAN uplink channels of the time-frequency space of the uplink WWAN channel assignment. In response to the reception of the device beacon by another wireless communication device, a peer to peer communication session is established.05-13-2010
20090296667Communication Method In Mobile Communication System, And Mobile Station And Base Station In The Same System - A scheduling method for transmitting an uplink signal from a mobile station to a base station comprises transmitting the uplink signal in a first scheduling mode in which the mobile station can transmit the uplink data without permission of the base station if an uplink communication state between the base station and the mobile station is higher than or equal to a predetermined quality; and transmitting the uplink signal in a second scheduling mode in which the permission is necessary for the mobile station transmitting the uplink data if the uplink communication state is lower than the predetermined quality.12-03-2009
20100265922METHOD AND APPARATUS FOR EFFICIENT ASSOCIATION PROCEDURE - Certain aspects of the present disclosure relate to a method for efficient ad-hoc peer to peer communication in a contention access period, while antenna directions of communicating peers can point to each other. Certain aspects of the present disclosure relate to a method for improved association of a device in a wireless network with a controller of the network.10-21-2010
20120033651Methods and Devices for Scheduling Transmissions in a Wireless Network Based on Contention and Channel Conditions - Methods and systems for assigning time-division multiplexed (TDM) slots in a multi-channel TDM system are presented. Preferably, a radio access network (RAN) assigns forward link and reverse link transmissions between the RAN and one or more wireless communication devices (WCDs) to TDM slots on various wireless channels. When making these assignments, the RAN may take into account (i) the priority of data that the RAN queues for the WCDs, and (ii) the signal quality at which the WCDs can receive the various wireless channels.02-09-2012
20120033645METHOD AND APPARATUS TO FACILITATE SUPPORT FOR MULTI-RADIO COEXISTENCE - A method of wireless communication includes determining a frame offset between communications of a first communication resource (e.g., an LTE radio) and communications of a second communication resource (e.g., a Bluetooth or WLAN radio). The method also includes determining potential time slot configurations for the communications of the second communication resource. A time slot configuration is selected from the determined potential time slot configurations, to reduce degradation of the first communication resource due to conflicting time slots between the first communication resource and the second communication resource, based on the determined frame offset. The selection may be based on the determined frame offset.02-09-2012
20100085945NETWORK STATION IDENTIFIERS IN A WIRELESS COMMUNICATION SYSTEM - A wireless communication system allowing transmission of identifiers of network stations, the system including: a first network station, such as a femto cell basestation, with an identifier and a first transmission coverage area; a second network station, such as a macro cell basestation, with an identifier and a second transmission coverage area, which is larger than and overlaps with the first transmission coverage area; and storage means storing a unit of time defined in the system, along with a first ID window defined within the unit of time allocated to the first network station for transmission of its own identifier and a subsequent second ID window defined within the unit of time allocated for transmission of the second network station identifier.04-08-2010
20090086684Method for Preventing Co-Channel Operation with Radar Systems - A method for preventing co-channel operation with a radar system includes the steps of setting a state of a first communication channel to active, connecting to a first wireless access point on the first communication channel, passively scanning at least a second communication channel for communication from a second wireless access point, setting a state of the second channel to active if frames are received on the second channel, determining whether an elapsed time since frames were received on at least one of the first channel and the second channel has exceed a predefined value, and in response to the predefined value being exceeded for at least one of the first channel and the second channel, setting the state of a corresponding one of the first channel and the second channel to passive.04-02-2009
20090252124Method for requesting resource and scheduling for uplink traffic in mobile communication and apparatus thereof - The present invention relates to a resource request and a packet scheduling method for uplink traffic in a mobile communication system. For efficient scheduling of the uplink traffic, a base station and user equipment (UE) determines a scheduling method according to characteristics of the traffic when performing negotiation therebetween. The traffic may be classified into traffic that generating a fixed-size packet in a periodical time interval, traffic that generates a variable-size packet in a periodic time interval, and traffic that generates a variable-size packet in a random time interval. Therefore, the UE requests a resource in accordance with the characteristics of the traffic and the base station performs scheduling according to the characteristics of the traffic such that an optimal uplink packet scheduling can be achieved.10-08-2009
20110026499COMMUNICATION SYSTEM WITH A MAPPING SYSTEM ALLOWING NODES TO REGISTER WITH A CONTROLLER - A communication system is provided that includes a controller providing a map of information to enable communication with a plurality of nodes. The information includes identification of two separate time slots, one for random access requests when a node initially contacts a controller and another for exclusively assigned access to transmit messages. The map can further provide information to enable identification of the nodes and assign transmission frequencies.02-03-2011
20100020772Packet transmission scheduling technique - A packet data transmission method of the HSDPA system includes collecting information on the quality of physical channels, a status of the MAC buffer, the priority level of data, the delay of data, and the like, determining the transmission order of data and the size of a data block to be transmitted based on the collected information, and transmitting the data block through the physical layer according to the order of transmissions. Since the HSDPA scheduler takes into account the delay of data, the quality of real-time services can be improved.01-28-2010
20090046672RATE MATCHING OF MESSAGES CONTAINING SYSTEM PARAMETERS - Systems, methodologies, and devices are described that facilitate transmitting a guard time parameter to a mobile device to facilitate rate matching data around a guard time region associated with a downlink subframe of a radio frame sequence. A base station transmits the guard time parameter via PBCH or DBCH to the mobile device. The base station rate matches data associated with PDSCH, comprising DBCH, around the guard time region, and transmits PDSCH to the mobile device. The mobile device identifies the guard time parameter and rate matches at least a portion of the information received via the PDSCH around the guard time region to facilitate enhanced reception of PDSCH. Optionally, a radio frame sequence can be structured so that a subframe immediately following a subframe containing DBCH is a downlink subframe, which can be known by the mobile device a priori or based on a downlink subframe parameter.02-19-2009
20090046670Method for Data Transmission in a Radio Communication System - A method for data transmission in a radio communication system, in which data of a plurality of subscribers is combined with the aid of a multiplexing method to form frames, and is transmitted by means of sub-carriers. At least two frame structures are provided for transmission of the frames, with the frame structures differing in the respectively associated number of pilot signals and/or in the distribution or grouping of associated pilot signals. Each subscriber determines an individual progress speed, and each subscriber is allocated to one of at least two speed ranges, depending on the progress speed. A frame structure which is individually associated with the speed range, on the one hand, and an individually associated number of sub-carriers, on the other hand, are used in order to transmit the data from subscribers who are allocated to an identical speed range on the basis of their progress speed.02-19-2009
20110200020CONTINUOUS MODE OPERATION FOR WIRELESS COMMUNICATIONS SYSTEMS - Certain aspects of the present disclosure propose techniques for a continuous communications mode in a wireless communications system. The technique may involve processing bundles of transmission time interval (TTI) transmissions having transmission times that are mapped to voice-over-internet-protocol (VOIP) arrival times, wherein the bundled TTI transmissions are processed without acknowledgements to indicate the bundled TTI transmissions have been successfully received.08-18-2011
20110200018SYSTEM AND METHOD FOR IMPROVED CONTROL CHANNEL TRANSMIT DIVERSITY - A method for providing transmit diversity in wireless network communications is presented. An indication of a slot structure is received. The slot structure identifies at least a first location of a reference signal within a slot. A first reference signal is transmitted within a first slot using a first antenna. A location of the first reference signal within the first slot is determined by the slot structure. A second reference signal is transmitted within the first slot using a second antenna. A location of the second reference signal within the first slot is determined by the slot structure. In some cases, the slot structure identifies a second location of a reference signal within the slot structure. The second location being offset from the first location, and a third reference signal is transmitted within the first slot at the second location on the first antenna.08-18-2011
20120106521Method, Device and System for Determining Resource Locations - A method, device and system for determining resource locations are disclosed in the invention, wherein the method includes the following steps: a user equipment (UE) receiving the High-speed Shared Control Channel (HS-SCCH) from a network side equipment; according to said HS-SCCH, the said UE obtaining the time slot on which the High-speed Downlink Shared Channel (HS-DSCH) is located; according to the time slot on which said HS-DSCH is located, said UE determining the sub-frame on which said HS-DSCH is located; the UE receiving the HS-DSCH from said network-side device in the time-slots, which said HS-DSCH is located on, in the subframe which said HS-DSCH is located on. In the invention, the UE is enabled to determine the sub-frame on which the UE is located, according to the time-slots which are distributed by a base-station and the HS-DSCH is located on; while the HS-DSCH resource of TS05-03-2012
20120106520COMMUNICATION METHOD USING TIME-DIVISION MULTIPLEXING - The invention relates to a communication method using time-division multiplexing, which enables permanent communication between user terminals. One of the terminals is a master terminal, while the others are slave terminals. The transmission channel is divided into consecutive cycles, and each cycle is divided into timeslots. Each slave terminal identifies, in a listening mode, a free timeslot in the current cycle (05-03-2012
20120106519RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD, AND RADIO COMMUNICATION DEVICE - In the environment of a communication area including a SDM-compatible mobile station for space division multiplex transmission and a SDM-uncompatible mobile station not compatible with space division multiplex transmission, a base station having a plurality of antennas and capable of adaptively changing directivity performs allocation of a mobile station which simultaneously performs space division multiplex transmission (SDM) and space division multiplex access (SDMA) by using a predetermined space division multiplex transmission evaluation criterion and a space division multi access evaluation criterion. By using this radio communication method, it is possible to use the spatial degree of freedom at its maximum and provide a radio communication system having an improved communication capacity.05-03-2012
20120106518Wireless Communication System and Related Methods - A method of operating a wireless mesh network comprises generating a pseudorandom sequence element in a transmitting device and a receiving device of the network using information shared by the transmitting and receiving devices. The pseudorandom sequence element is then used to calculate a communication channel/timeslot assignment for communication between the transmitting wireless device and the receiving wireless device.05-03-2012
20120106517APPARATUS AND METHOD OFSCHEDULING RESOURCES FOR DEVICE-TO-DEVICE COMMUNICATIONS - An approach is provided for scheduling resources for device-to-device communications. A resource of a network is granted to a group designated for device-to-device communications. The group then determines how the resource allocation is utilized to support the communication session and allocates the resource among the user equipment within the group independently of the base station. Further, a user equipment pair in the group determines transmit/receive (Tx/Rx) timeslot configuration to allow TDD mode operations, and further configure the modulation and coding for the device-to-device connection, and error control scheme for the pair via control signaling independently from the group.05-03-2012
20090274124PACKET SCHEDULING METHOD, BASE STATION, AND MOBILE STATION IN MOBILE COMMUNICATION SYSTEM - A downlink packet scheduling method is disclosed for a shared channel or a common channel in a mobile communication system between a base station and a mobile station, the method including a step in which the base station determines whether there is a waiting packet to be transmitted to the mobile station other than a current transmission packet; a step in which when it is determined that there is no waiting packet to be transmitted, the base station sets a stop period “t” in which packet transmission is temporarily stopped after the current packet transmission; a step in which the base station transmits information indicating the stop period “t” through a schedule information channel transmitting schedule information of downlink packets; and a step in which the base station stops the packet transmission to the mobile station during the stop period “t” after the current packet transmission.11-05-2009
20090279512WIRELESS COMMUNICATION SYSTEM, RADIO BASE STATION APPARATUS AND RADIO TERMINAL APPARATUS - A wireless communication system comprises radio base station apparatuses each of which transmits an estimation pilot in advance for estimating the quality of a downlink communication after a spatial signal processing performed after a time unified among the radio base station apparatuses; and radio terminal apparatuses each of which receives the estimation pilot to determine the quality of the downlink communication, thereby reporting the determined downlink communication quality to the radio base station apparatus via an uplink channel. The estimation pilot is transmitted at the same time and frequency established among the radio base station apparatuses by use of the same directivity beam as used for transmitting the data after the unified time.11-12-2009
20090279511MULTI-TRANSCEIVER MOBILE COMMUNICATION DEVICE AND METHODS FOR NEGATIVE SCHEDULING - Embodiments of a multi-transceiver mobile communication device and methods for negative scheduling are generally described herein. Other embodiments may be described and claimed. In some embodiments, a broadband wireless access network (BWAN) transceiver of a multi-transceiver mobile communication device may transmit a negative scheduling (NS) request frame that includes time-related QoS parameters to a BWAN base station to request one or more negative allocation (NA) periods. In response, the base station may transmit a NS management response frame to indicate when NA periods are to occur during subsequent BWAN frames. The BWAN base station may also transmit a subsequent NS response frame to update the configuration of the NA periods including an indication of when a subsequent NA period is to occur.11-12-2009
20090285187Optimized Estimation of Power for the Transport Format Selection of a UMTS Handset - The invention concerns a method for optimizing the Transport Format Combination (TFC) selection procedure processed by a user equipment UE in an uplink communication in a mobile telecommunication network, wherein the TFC procedure during the current TTI (Time Transport Interval) at instant t+1 is performed in function of: 11-19-2009
20090168731METHOD AND APPARATUS FOR HANDLING INTERACTIONS BETWEEN MEASUREMENT GAP, AUTOMATED REPEAT REQUEST, DISCONTINUOUS RECEPTION AND DISCONTINUOUS TRANSMISSION IN WIRELESS COMMUNICATIONS - A method and apparatus for handling interactions between measurement gap, automated repeat request, discontinuous reception and discontinuous transmission in wireless communications are disclosed. The method and apparatus are for real-time data and non-real time data in both an uplink and a downlink.07-02-2009
20090262713SYNCHRONIZATION OF TIMING ADVANCE AND DEVIATION - Apparatus and method for reducing the latency from timing deviation (TD) measurement to time advance (TA) adjustment. A deterministic procedure to coordinate time advance (TA) commands and timing deviation (TD) measurements is used so that failed transmissions or mobile terminals signal propagation changes can be recognized and corrected much more rapidly. Radio resource efficiency is maximized by minimizing signaling overhead through effectively reducing the frequency of time advance commands. This is accomplished by using TA command signals which include a Connect Frame Number (CFN) to specify particular radio frames for time advance (TA) adjustment. The potential for timing deviation (TD) measurements to be incorrectly processed in conjunction with adjusting a physical reception window and calculating mobile termination location is minimized, without excessive command signaling requirements.10-22-2009
20090262712TRANSMITTING AND RECEIVING DEVICES IN CELLULAR SYSTEM - In a multi-carrier cellular system, a second synchronization code (a Walsh code or a GCL series code) mapped on a second synchronization channel is used as a signal for specifying in which cell of the base station a mobile station terminal device itself is. A signal transmitted from the base station to the mobile station terminal device is mapped in a radio frame having two-dimensional extension in frequency and time directions. When mapping a certain series number of the second code for specifying a cell or a cell group on the radio frame as the second synchronization channel, phase rotation or circular shift in which one radio frame is one cycle is applied to the second synchronization code. On the receiving side, the head timing of the radio frame is known by knowing the phase rotation angle or the amount of circular shift of the second synchronization code.10-22-2009
20090262710RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION DEVICE - Provided is a radio communication method capable of optimally using the wide-band communication enabled time while maintaining power saving in an ad hoc network. According to this method, in the ad hoc network using the wide-band communication and a narrow-band communication, transmission and output of the narrow-band synchronization tone signal and the resynchronization tone signal are controlled so that the reach radius of the narrow-band synchronization signal and the resynchronization tone signal exceeds the reach radius of the wide-band signal (milli-wave UWE signal). Thus, when radio communication devices pass by each other, super frame synchronization is completed before reaching the wide-band communication enabled range of the ad hoc network, thereby optimally using the wide-band communication-enabled time.10-22-2009
20090262709WIRELESS COMMUNICATIONS SYSTEMS AND CHANNEL-SWITCHING METHOD - A wireless communications system and channel-switching method are disclosed herein. A source device and multiple sink devices independently maintain respective counters which track data packet errors. Each device independently switches channels only after its counter reaches a channel-switching threshold. The new channel switched-to is either determined by an indexed ordering of the available channels or by reference to a global clock maintained by each of the devices. Accordingly, all devices quickly arrive at a common channel. The system switches channels only when necessary and resolves quickly to a mutually acceptable channel. Therefore, unnecessary channel switching is minimized and data throughput is optimized.10-22-2009
20090290560METHOD AND BASE STATION FOR UPLINK RESOURCE ALLOCATION IN TIME-SHARING CHANNEL MODE - A method for uplink resource allocation in a time-sharing channel mode is provided. The method includes the following steps. A base station accesses a network, and receives an uplink resource selection notification message from a neighboring base station, in which the uplink resource selection notification message carries information of uplink resources selected by the neighboring base station; and the base station initially accessing the network allocates uplink resources that do not overlap the uplink resources selected by the neighboring base station. A base station for uplink resource allocation in a time-sharing channel mode is also provided. By using such method and base station, different uplink resources are allocated to different base stations, so as to prevent possible conflict among one another, and avoid repeatedly transmitting the same signaling, thereby saving the resources.11-26-2009
20100272077System and Method for Communications using Time-Frequency Space Enabled Coordinated Beam Switching - A system and method for communications using time-frequency space enabled coordinated beam switching are provided. A method for transmitting information includes selecting a beam from a set of beams, determining a set of users out of a plurality of users, the set of users preferring the selected beam and for each user in the set of users, selecting a first available subframe-subband pair that maximizes the user's channel quality. The method also includes scheduling the selected subframe-subband pairs, and transmitting information related to the scheduled subframe-subband pairs to the users in the set of users.10-28-2010
20090274127METHOD FOR DETERMINING SUPERFRAME FOR BEACON SCHEDULING - Provided is a method for determining superframe to efficiently perform beacon scheduling by allocating superframe lengths which are different according to a routing depth of sensor nodes in a ZigBee based wireless sensor network. The method for determining a superframe for beacon scheduling, includes the steps of: receiving a beacon from a neighboring node and grasping information on a superframe used by the neighboring nodes; and determining a transmission time and a length of own superframe based on superframe information of the grasped neighboring node.11-05-2009
20090279513METHOD FOR TRANSMITTING SIGNAL AND METHOD FOR RECEIVING SIGNAL - A sector transmitter maps a synchronization channel and a broadcast channel to be on a time axis adjacent to each other, and applies the same bandwidth and the same transmission diversity to the synchronization channel and the broadcast channel. A mobile station estimates a plurality of channel statuses for a plurality of sectors from a synchronization channel signal, and acquires broadcast channel information from a broadcast channel signal using the plurality of estimated channel statuses. As a result, the mobile station can receive a broadcast channel with high reception quality while having low complexity.11-12-2009
20100220695METHOD AND APPARATUS FOR GENERATING AND TRANSMITTING CODE SEQUENCE IN A WIRELESS COMMUNICATION SYSTEM - A method of generating a code sequence in a wireless communication system is disclosed. More specifically, the method includes recognizing a desired length of the code sequence, generating a code sequence having a length different from the desired length, and modifying the length of the generated code sequence to equal the desired length. Here, the step of modifying includes discarding at least one element of the generated code sequence or inserting at least one null element to the generated code sequence.09-02-2010
20100220693VOICE-DATA INTEGRATED MULTIACCESS BY SELF-RESERVATION AND STABILIZED ALOHA CONTENTION - A multiple access communication protocol that includes an uplink and a downlink channel is disclosed. The uplink channel has a plurality of frames, such that each frame has a first selectable number of minislots and a second selectable number of slots. A reservation request of a first type is sent into a first selected minislot of a selected frame of the uplink channel when information of a first type is to be sent. The reservation request of the first type requests an assignment for at least one slot for transmitting information of the first type in at least one frame that is subsequent to the selected frame. A reservation request of a second type is sent into a second selected minislot of the selected frame when the second selected minislot is available in the selected frame and when information of a second type is to be sent. The reservation request of the second type requests an assignment of at least one slot for transmitting information of the second type in at least one frame that is subsequent to the selected frame, and contends for the second selected minislot based on a pseudo-Bayesian Aloha algorithm. The downlink channel contains a feedback message that occurs prior to the end of the selected frame of the uplink channel. The feedback message includes minislot assignment information for sending reservation requests of the first and the second type and slot assignment information for transmitting information of the first and the second type, minislot contention information for the reservation requests of the second type sent in the selected frame, and reservation backlog information for an estimated number of reservation requests of the second type pending at a beginning of the selected frame.09-02-2010
20090290559METHOD AND APPARATUS FOR HARQ AUTONOMOUS RETRANSMISSIONS - A method and an apparatus for performing uplink hybrid automatic repeat request (HARQ) transmission in a burst are disclosed. A wireless transmit/receive unit (WTRU) may transmit a transmission burst over at least two consecutive transmission time intervals (TTIs) via a HARQ process configured for transmission burst. An E-DCH dedicated physical control channel (E-DPCCH) power offset may be set to the transmission burst-specific E-DPCCH gain factor value. The WTRU may calculate a power of the E-DPCCH by dividing a conventional E-DPCCH power offset by a total number of TTIs in the transmission burst. The WTRU may transmit the E-DPCCH only during a first TTI of the transmission burst. The supported E-TFCs may be a second set of supported E-TFCs determined only for use with the transmission burst. The WTRU may determine the set of supported E-TFCs and the E-TFC for transmission based on a number of TTIs in the transmission burst.11-26-2009
20100272079METHODS AND SYSTEMS FOR CUSTOMIZED MULTI-APPLICATION CHANNEL CONTROL - Methods and devices are provided to aid in the control of a channel used in communicating data packets between a first communication device and a communication device with which the first communication device is communicating. For an open session occurring on the channel, the channel can be in an active state or a dormant state. Controlling when the channel is brought down to the dormant state can help improve operating conditions such as battery life of a communication device. Time-out parameters associated with the communication device, each open session and packets being sent and received on the channel are used in determining when the channel is brought up to the active state or brought down to the dormant state.10-28-2010
20100272074EFFICIENT UPLINK TRANSMISSION OF CHANNEL STATE INFORMATION - A UE in a wireless communication network transmits succinct, direct channel state information to the network, enabling coordinated multipoint calculations such as joint processing, without substantially increasing uplink overhead. The UE receives and processes reference symbols over a set of non-uniformly spaced sub-carriers, selected according to a scheme synchronized to the network. The frequency response for each selected sub-carrier is estimated conventionally, and the results quantized and transmitted to the network on an uplink control channel. The non-uniform sub-carrier selection may be synchronized to the network in a variety of ways.10-28-2010
20090103499BEACON AND MOBILE TERMINAL SYNCHRONIZATION AND METHOD THEREOF - The invention relates to a method of optimizing measurement duration in a telecommunications network, said telecommunications network comprising a first base station connected to a first radio network, at least a second base station connected to a second radio network, a core network connected to said first and second radio network, a database coupled to said core network, said method comprising: sending a first beacon period information belonging to said first base station from said first base station to said database; sending at least a second beacon period information belonging to said second base station from said second base station to said database; storing at least said first and second beacon period information on said database; sending a request of said second beacon period information from said first base station to said database; generating a response of said second beacon period information belonging to said second base station from said database to said first base station; forwarding said response of said first base station to said mobile terminal; adjusting measurement periods on the mobile terminal based on said response of said beacon period information.04-23-2009
20120294290MOBILE COMMUNICATIONS NETWORK - A first user terminal receives data during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal using time-division multiplexing, estimates the applied power ratio between a first sub-channel to the first set and a second sub-channel to the second set (available power ratios are divided into at least one known region and each applied power ratio belongs to one region), estimates a bit error probability for each of the bursts of the received data; and applies an adaptation process in order to make the estimated bit error probabilities fall into one of bit error probability intervals of a predefined mapping table with a predetermined probability. which determines the bit error probability that is to be reported to a network.11-22-2012
20120294289Bit Error Probability Measurement - There is provided a method, including receiving data in a first user terminal during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal in the time-division multiplexing communication protocol, estimating the applied power ratio between the transmission power of a first sub-channel to the first set and the transmission power of a second sub-channel to the second set, wherein the available power ratios are divided into at least one known region and each applied power ratio belongs to one region, estimating a bit error probability for each of the bursts of the received data; and applying an adaptation process in order to make the estimated bit error probabilities to fall into one of bit error probability intervals of a predefined mapping table with a predetermined probability, wherein the bit error probability interval in which the estimated bit error probabilities fall determines the bit error probability that is to be reported to a network and the adaptation process to be applied depends on which region the applied power ratio belongs to.11-22-2012
20100284376METHOD FOR RECONFIGURING TIME ALIGNMENT TIMER - Disclosed is the radio (wireless) communication system providing a radio communication service and the terminal, and more particularly, to a method for reconfiguring a timer of a mobile terminal in an Evolved Universal Mobile Telecommunications System (E-UMTS) evolved from the Universal Mobile Telecommunications System (UMTS) or a Long Term Evolution (LTE) system.11-11-2010
20100111047Techniques to support multiple radio-access technologies - Techniques to permit scheduling of mixed radio access technologies. In some cases, a first radio access technology mode of a base station is scheduled during a first time region and a second radio access technology mode of a base station is scheduled during a sleep mode of the first radio access technology mode. In some cases, a first radio access technology mode of a base station is scheduled during a first time region and a second radio access technology mode of a base station is scheduled during an unused portion of the first time region. In some cases, a femto-base station is scheduled to snoop for local mobile stations during a sleep mode. Inactive regions of mobile stations are scheduled during a portion of sleep modes of the radio access technology modes.05-06-2010
20100111049METHOD AND APPARATUS FOR ENABLING REGISTRATION OF ENDPOINT DEVICES THROUGH PROVISIONING - A method and apparatus for enabling registration of an endpoint device that is incapable of supporting a Session Initiation Protocol (SIP) based Internet Protocol Multimedia Subsystem (IMS) registration are disclosed. For example, the method performs a static registration of the endpoint device in a plurality network elements associated with an Internet Protocol Multimedia Subsystem (IMS) network by provisioning that is initiated by a service provider of the IMS network. The method processes an originating call request or a terminating call request associated with the endpoint device by an Application Server (AS) using the static registration, wherein the application server is one of the plurality network elements.05-06-2010
20080212542Communication methods and devices for dual-mode communication systems - A method for wireless communication determines, for a client device having a first wireless connection with a first connection point, to initiate a second wireless connection between the client device and a second connection point, wherein the first connection point includes an Access Point and the second connection point includes a Base Station. The method sends a message from the second connection point to the first connection point, including instructions for the first connection point to communicate with the client device using either a Point Coordinate Function (PCF) or a Distributed Coordinate Function (DCF). In addition, the method initiates the second wireless connection between the client device and the second communication point.09-04-2008
20120294292Method of Associating Time Slots with a Transmission Path in a Wireless Interconnected Network - A method of associating time slots with a transmission path in a wireless interconnected network made of a plurality of network nodes such that the transmission path extends between a source node and a destination node and comprises a plurality of sequential links between adjacent network nodes, data being transmitted in the network on a time slot basis by the association of the time slots to be used with the links of the transmission path, wherein a quality value is determinable for each link within an association sequence of time slots describing an end-to-end data transmission from the source node to the destination node along the transmission path, where the value represents the reliability of the data transfer. An overall quality value for the association sequence can further be determined as a function of the quality values of each of the links.11-22-2012
20110206019Synchronization Scheduling Method - A synchronous scheduling method is provided. The method comprises: an appointed network element determining scheduling transmission time interval of a service according to length of a synchronization sequence and time division multiplexing period of the service, and sends the determined scheduling transmission time interval to multiple lower layer network elements (S08-25-2011
20110206018PROVIDING ACKNOWLEDGEMENT INFORMATION BY A WIRELESS DEVICE - In general, to provide acknowledgment information by a first wireless device, the first wireless device sends repeated instances of acknowledgment information in respective first and second frame structures, in response to receipt of first information from a second wireless devalue. In addition, the first wireless device also sends further acknowledgment information in the second frame structure that is responsive to second information received from the second wireless device.08-25-2011
20100220692METHOD AND SYSTEM FOR NETWORK SYNCHRONIZATION VIA A FEMTOCELL - Aspects of a method and system for communication are provided. In this regard, a femtocell may receive messages from a plurality of different sources comprising one or more other femtocells, one or more cellular enabled communication devices, and one or more non-cellular network nodes. The femtocell may select, based on the received messages, a master clock within one of the plurality of different sources as a master clock for synchronization of the plurality of different sources. A femtocell clock, a global navigational satellite signal (GNSS) clock, a cellular base station clock, or a cellular enabled communication device clock may be selected as the master clock. The femtocell may transmit and/or receive synchronization messages to and/or from the one or more cellular enabled communication devices and the one or more non-cellular network nodes.09-02-2010
20100220691METHOD AND APPARATUS FOR TRANSMITTING BROADCASTING INFORMATION - In a method of transmitting broadcasting information, the broadcasting information is classified into fixed broadcasting information for transmitting to a fixed position of a super-frame and variable broadcasting information to be variably transmitted in the form of a broadcasting message. The fixed broadcasting information may be classified into primary broadcasting information having a short cycle and secondary broadcasting information having a long cycle.09-02-2010
20100061347SYNCHRONIZATION MECHANISM FOR ALLOWING COEXISTENCE OF NODES IN THE SAME FREQUENCY BAND - Certain aspects provide a technique for managing transmissions in a wireless network. The technique generally provides for an access terminal to transmit synchronization packets containing timing information regarding an existing piconet. The synchronization packets may contain an indication of resources of the piconet allocated to the access terminal by an access point.03-11-2010
20100061348METHOD AND APPARATUS OF SYSTEM SCHEDULER - Briefly, according to embodiments of the invention, there is provided a wireless communication system and a method to receive by a base station from a first mobile station a first chain of data symbols transmitted by at least two antennas and having a first transmit diversity, to receive from a second mobile station a second chain of data symbols transmitted by at least two antennas and having a second transmit diversity. Both first and second chains of data symbols are transmitted from the first and second mobile stations at the same time, are modulated according to an Orthogonal Frequency Division Multiplexing (OFDM) scheme and encoded by a space time block codes scheme.03-11-2010
20090003289Wireless Communication System, Wireless Communication Device, Program and Wireless Communication Method - A wireless communication device that performs wireless communication with another wireless communication device using a set time band set in advance from among time bands included in a frame with a predetermined cycle. The wireless communication device includes: a selector, that, when a set time band is changed, selects a new time band for after the change from the time bands included in the frame; a communication portion that transmits in a block information showing the new time band to the other wireless communication device as a set time band change request; and a setting portion that, based on the response received from the other wireless communication device with regard to the set time band change request, changes the setting of the set time band to the new time band.01-01-2009
20090003288Method for Reporting and Managing Wireless Resources in Tdm System - A method for reporting and managing wireless resources in TDM system comprises the step of reporting the wireless resources comprises a RNC obtaining the resource capacity information of each of the carrier frequency in a cell covered by a base station through the resource audit response message or the resource state indicating message or the resource obstruct message. The RNC can obtain the information of the carrier frequency. According to the method, resource capacity information of each of the carrier frequency in the RNC is in consistency of that of the base station. Thus, the rationality of the carrier frequency and the resource capacity information of the carrier frequency distributed to the service by the RNC can be assured. The success rate of the establishment for a radio link is improved accordingly as to avoid the fact that the radio link establishes on the carrier frequency that is not supported by the base station.01-01-2009
20100098031Apparatus, Method and Computer Program Product Providing Initial Cell Acquisition and Pilot Sequence Detection - Disclosed herein are apparatus, methods and computer program products for performing cell acquisition and pilot sequence detection in a cellular telecommunications system such as, for example, an OFDM system. In the apparatus, methods and computer program products, a primary synchronization channel sequence and a secondary synchronization channel sequence are transmitted by a base station in a sub-frame of an OFDM downlink frame. In one embodiment, the primary synchronization channel sequence, secondary synchronization channel sequence, and system information are mapped to a plurality of sub-carriers in an FDM signal. At the user equipment, coarse synchronization is performed during cell acquisition by performing a cross correlation between the signal and a reference primary synchronization channel sequence stored in a memory of the user equipment. The coarse synchronization performed using the primary synchronization channel sequence is improved by performing a cross correlation between the signal and a reference secondary synchronization channel sequence stored in a memory of the user equipment. Identification of a pilot sequence for channel estimation purposes is performed by detecting two cyclically invariant pairs of secondary synchronization channel sequences over two consecutive frames of the signal. The cyclically invariant pair of secondary synchronization channel sequences are selected from a set of orthogonal sequences and identify a particular pilot sequence incorporated in the signal.04-22-2010
20090168730Pilot Signal Allocation Method and Apparatus - A pilot (or reference) transmission scheme is utilized where different transmitters are assigned pilot sequences with possibly different cyclic time shifts and different base pilot sequences. A pilot signal is transmitted concurrently by the transmitters in a plurality of pilot blocks, and a receiver processes the plurality of received pilot blocks to recover a channel estimate for at least one of the transmitters while suppressing the interference due to the pilot signals from the other transmitters.07-02-2009
20080232331Mobile Communication System, Base Station, and Hsdpa Transmission Method Used in Them - To provide a base station which makes it possible to apply HSDPA to radio bearers in the RLC-TM, such as circuit switched calls, as well and which can use the radio capacity to the full. A call controller 09-25-2008
20080273503METHOD AND TERMINAL FOR PERFORMING HANDOVER IN MOBILE COMMUNICATIONS SYSTEM OF POINT-TO-MULTIPOINT SERVICE - A method for performing a handover in a mobile communications system of a Multimedia Broadcast/Multicast Service (MBMS), wherein when a terminal having subscribed (joined) a point-to-multipoint service moves from a first base station to a second base station, the terminal is commanded (indicated) by the first base station to transfer point-to-multipoint service information, and then transfers to the second base station a point-to-multipoint service list subscribed (joined) by the terminal or information on the point-to-multipoint service received from the first base station, whereby a service delay which may occur during the handover can be effectively avoided.11-06-2008
20080279157Resource allocation in wireless communication systems - A method and system wherein the coverage area of a plurality of base stations may be evaluated with respect to noise rise and power for assignment of system resources is disclosed. Path loss is measured to determine candidate base stations and at least one timeslot is selected from within the candidate base stations for optimization of the uplink and downlink.11-13-2008
20080285523Method And Arrangements In A Radio Communication System - The present invention relates to uplink transmissions and scheduling of resources for uplink transmissions in connection with packet switched communication. A radio communication network schedules (11-20-2008
20080291878Uplink Synchronous Control Method and Apparatus of the High Speed Shared Information Channel - The present invention discloses an uplink synchronization control method and system for the high speed shared information channel. The method includes: S11-27-2008
20090003290Method and Apparatus for Selecting Transport Format Combination in a Wireless Communication System - A method and apparatus for selecting a Transport Format Combination (TFC) in a wireless communication system are provided, in which it is determined whether a previous TFC used for data transmission on a previous valid Transmission Time Interval (TTI) can be reused as a current TFC for data transmission on a current valid TTI via at least one transport channel according to at least one parameter related to the transport channel, the previous TFC is set as the current TFC without performing a TFC search and determination process, when the previous TFC can be reused on the current valid TTI, and TFCs, each having Transport Formats (TFs) preset for data transmission on transport channels are searched, and a suitable TFC is selected for the current valid TTI from among the TFCs when the previous TFC cannot be reused on the current valid TTI.01-01-2009
20080316978TRANSMIT AND RECEIVE TRANSITION ACCELERATOR - A transmit and receive machine (TRM) is part of a medium access controller (MAC), in support of the 802.11 wireless standard. The TRM is a control machine that changes the MAC within which it resides from a purely software-based MAC into a software and hardware management system. Timing-critical tasks that were once performed by the embedded processor of the MAC are performed by the TRM. This change enables the MAC to operate at a high speed while the TRM maintains high accuracy of transmit and receive timing operations.12-25-2008
20120033649SYSTEM AND METHOD FOR MOBILE COMMUNICATIONS - Systems and methods for mobile communications are disclosed herein. An example method for a mobile station includes sending to a network a mobile station capability information element, the mobile station capability information element including a first reduction of timeslots field for a downlink dual carrier non-enhanced flexible timeslot assignment operation mode and a second reduction of timeslots field for a downlink dual carrier enhanced flexible timeslot assignment operation mode.02-09-2012
20120033650FLEXIBLE ALLOCATION OF CONTROL SIGNAL RESOURCES - A wireless communication system is disclosed. The method for processing a downlink subframe at a user equipment in a wireless communication system includes receiving information associated with a PHICH duration, receiving a subframe that includes a PHICH, a PDCCH, and a PDSCH, and obtaining the PDSCH after a lapse of the PDCCH duration. If the PHICH duration is larger than the PDCCH duration, the obtaining of the PDSCH is performed in consideration of PHICH resources in a duration that corresponds to the PHICH duration but not to the PDCCH duration.02-09-2012
20080205350Multiple Wireless Networks Management - A multiple wireless networks structure comprising a plurality of beacon groups each comprising one or more devices communicating via an associated wireless network utilising a superframe structure; wherein each device of each beacon group allocates a local control period and one or more neighbor control periods in each superframe; wherein the neighbor control periods in each beacon group cover all one or more control periods of other beacon groups detected by one or more of the devices in said each beacon group to an extent as said control periods do not overlap with the local control period in said each beacon group.08-28-2008
20110007720WIRELESS COMMUNICATION METHOD, BASE STATION APPARATUS AND WIRELESS COMMUNICATION SYSTEM - A base station apparatus includes a base-station receiver which receives information indicating the occurrence of the given event in the wireless terminal device, the information being transmitted from the wireless terminal device using the common slot. The base station apparatus includes a base-station transmission and reception manager which determines the number of random slots assigned as random slots to transmit the bandwidth request information for the given event among random slots in the random access period, based on the occurrence of the given event received by the base-station receiver. The base station apparatus includes a base-station transmitter which transmits, in the base station apparatus, information on the assigned random slots to the wireless terminal device of random access period.01-13-2011
20110007717METHOD AND SYSTEM FOR IMPLEMENTING MULTIPLE TIMING DOMAINS FOR PRIMARY AND SECONDARY SYNCHRONIZATION DETECTION IN EUTRA/LTE - A mobile device receives a signal, from a base station, comprising a primary synchronization sequence (PSS) and a secondary synchronization sequence (SSS). The mobile device utilizes two different sampling rates to perform the PSS synchronization and the SSS detection individually. For example, the mobile device synchronizes to the received PSS at a first sampling rate such as 0.96 MHz, which is determined based on the PSS transmission rate and/or the length of the received PSS. The mobile device detects the received SSS at a second sampling rate such as 1.92 MHz, which equals to the sampling rate for an analog-to-digital conversion at the mobile device. The received PSS and associated symbol timing are detected through the PSS synchronization to support the SSS detection. The detected SSS is used to acquire cell-specific parameters such as cell ID. The acquired cell-specific parameters ensure proper communications between the mobile device and the base station.01-13-2011
20110007718METHOD AND SYSTEM FOR GENERATING TIMED EVENTS IN A RADIO FRAME IN AN E-UTRA/LTE UE RECEIVER - A mobile device coupled to a common system clock receives a signal comprising a primary synchronization sequence (PSS) and a secondary synchronization sequence (SSS) in a radio frame. Sample counts are generated for timed events based on corresponding operating bandwidths. The timed events are detected at modulo sample counts of the generated sample counts according to corresponding operating bandwidths. PSS symbol timing determined via the PSS synchronization is aligned to the generated sample counts based on corresponding operating bandwidth. The generated sample counts are bit-shifted relative to the aligned PSS symbol timing for other timed events based on corresponding operating bandwidths. The one or more timed events are determined via performing modulo counting after the bit-shifting. Timing operations are performed at the determined timed events and the determined one or more timed events are refined, accordingly.01-13-2011
20080285524Radio Communication System Using Multi-Antenna Transmission Technique, and Multi-User Scheduler Therefor - In a radio system performing scheduled transmission to a plurality of receiving stations from a transmitting station having a plurality of antennas, a transmitting station obtains reception quality information estimated from feedback information obtained from the plurality of receiving stations, determines a transmission system whether to perform beamforming, which transmits data of an identical stream by weighting each of the plurality of antennas based on the obtained reception quality information, or to perform MIMO multiplexing, which transmits data of different streams respectively from the plurality of antennas, and transmits information to identify the determined transmission system by adding to a scheduler management channel.11-20-2008
20090310574METHOD FOR TRANSMITTING A DATA PACKET AND A METHOD OF ALLOCATING A CHANNEL IN A WIRELESS NETWORK - A present invention is related to a method for transmitting a data packet in a wireless network. An exemplary method comprises requesting to allocate a bi-directional channel time block including a first channel time block for transmitting a specific data packet and a second channel time block for receiving a response to the specific data packet; transmitting the specific data packet through the first channel time block; and receiving the response to the specific data packet through the second channel time block, wherein the bi-directional channel time block is predetermined to be allocated in an unreserved region in a superframe.12-17-2009
20080267138MIMO SYSTEM WITH MULTIPLE SPATIAL MULTIPLEXING MODES - A MIMO system supports multiple spatial multiplexing modes for improved performance and greater flexibility. These modes may include (1) a single-user steered mode that transmits multiple data streams on orthogonal spatial channels to a single receiver, (2) a single-user non-steered mode that transmits multiple data streams from multiple antennas to a single receiver without spatial processing at a transmitter, (3) a multi-user steered mode that transmits multiple data streams simultaneously to multiple receivers with spatial processing at a transmitter, and (4) a multi-user non-steered mode that transmits multiple data streams from multiple antennas (co-located or non co-located) without spatial processing at the transmitter(s) to receiver(s) having multiple antennas. For each set of user terminal(s) selected for data transmission on the downlink and/or uplink, a spatial multiplexing mode is selected for the user terminal set from among the multiple spatial multiplexing modes supported by the system.10-30-2008
20100142494METHOD AND APPARATUS FOR IMPROVING A HYBRID AUTOMATIC REPEAT REQUEST PROCEDURE IN THE TRANSITION OF TRANSMISSION TIME INTERVAL BUNDLING IN A WIRELESS COMMUNICATION SYSTEM - A method of improving a hybrid automatic repeat request (HARQ) procedure in the transition of transmission time interval (TTI) bundling for a MAC layer of a user equipment in a wireless communication system, the method including activating TTI bundling upon receiving a bundling activation command, and using a first number of unused HARQ processes in the first round trip time after TTI bundling is activated to continue the first number of unfinished HARQ processes before TTI bundling is activated.06-10-2010
20110206016MANAGEMENT OF ACCESS TO A MEDIUM - The present invention relates to, in a wireless network in which wireless stations transmit frames, a method of managing the access of the medium to a wireless station once a frame or a sequence of frames has been transmitted by the wireless station, the method comprising: (a) generating a time value resulting from a function of the duration of the frame or the sequence of frames to be transmitted, (b) transmitting the frame or the sequence of frames; and (c) after step (b), the wireless station refraining from access to the medium by counting down a refraining time, the value of the refraining time being determined by taking account of the said time value.08-25-2011
20090103500Re-transmission capability in semi-persistent transmission - One or more hybrid automatic repeat request process identifications are configured for scheduling without associated control signaling. A particular HARQ process ID to be assumed for a given subframe is determined based on at least one of: a) system frame number; b) number of hybrid automatic repeat request processes that are allocated for semi-persistent scheduling; and c) periodicity for semi-persistent scheduling. In various embodiments: a) is broadcast and b) and c) are sent via RRC signaling; and the assumed particular HARQ process ID is determined as a function of [Current TTI/SP_Period] mod Num_SP_HARQ:wherein Current TTI is a number for the given subframe derived from the system frame number and the term [Current TTI/SP_Period] is rounded to an integer prior to the modulo operation; SP_Period is the periodicity of the semi-persistent scheduling; and Num_SP_HARQ is the number of hybrid automatic repeat request processes that are allocated for semi-persistent scheduling.04-23-2009
20100142492METHOD AND APPARATUS FOR COMPOSING A SET OF CELLS IN A RADIO NETWORK - The invention proposes a method for enabling a composing of a set of cells within a coverage area of a radio access network within which the same information is transmitted time synchronously using a modulation and coding scheme common for the cells of the set. The proposed method comprises the following steps performed by a mobile station connectable to the radio access network: identifying one or more pilot signals from respective one or more cells monitored by the mobile station, determining signal and interference contributions from the one or more monitored cells with regard to a particular set of cells, reporting the determined signal and interference contributions towards a network node performing the composition of the set of cells.06-10-2010
20090161636FLEXIBLE CONTROL CHANNELS FOR UNPLANNED WIRELESS NETWORKS - A wireless node configured to communicate with a remote node using a timeslot structure. The timeslot structure includes a plurality of data channels and a plurality of control channels, wherein each of the control channels comprises a plurality of control units. The wireless node is further configured to assign any one of a plurality of control messages for the data channels to any one of the control units.06-25-2009
20090175247METHOD OF SCHEDULING BROADCAST MESSAGES FOR TRANSMITTING SYSTEM INFORMATION - A method for scheduling broadcast messages to transmit system information is disclosed. This method for scheduling broadcast messages having system information classifies a plurality of system information into one or more groups. For example, the system information may be control information for a network entry and initialization of a mobile station, or a burst profile. Then, the scheduling method allocates different numbers of transmission times to the individual groups, and determines transmission start times of system information of the individual groups according to the allocated transmission times.07-09-2009
20090161638TELECOMMUNICATIONS NETWORK - A basestation of a telecommunications network is able to acquire timing information by sending a single time request message over a computer network to a time server, with the time request message specifying a number of time response messages, said number being greater than one. Based on the received specified number of time response messages from the time server, the basestation is able to calibrate an internal oscillator.06-25-2009
20090285188METHOD, COMMUNICATION SYSTEM, AND DEVICE FOR OBTAINING CONNECTION FRAME NUMBER - A method, a communication system, and a device for obtaining a connection frame number (CFN) are provided to obtain the CFN under a situation of applying high speed package access (HSPA). The method includes the following steps. A downlink node synchronization request including radio network controller (RNC) time information is sent to a base station through a high-speed downlink shared channel (HS-DSCH) frame protocol (FP). An uplink node synchronization response including base station time information sent from the base station through the HS-DSCH FP is received. A CFN is obtained according to a preset RNC frame number (FN), a preset frame offset, the RNC time information, and the base station time information.11-19-2009
20120069826TERMINAL DEVICE AND SIGNAL MULTIPLEXING CONTROL METHOD - Provided is a terminal device which achieves an improvement in the quality of uplink data while the power consumption of the terminal is suppressed even when the uplink data and a response signal are simultaneously transmitted in carrier aggregation. Specifically provided is a terminal device (03-22-2012
20120069825RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, TERMINAL APPARATUS, AND RADIO COMMUNICATION METHOD IN RADIO COMMUNICATION SYSTEM - A radio communication system including: a first and second base station apparatuses which include one or more of sells or sectors respectively; and a terminal apparatus, wherein the first and second base station apparatuses and the terminal apparatus performs radio communication, the first and second base station apparatuses includes: a process unit which performs a scrambling process to a first and second transmission data respectively by using a common scrambling code when the first and second transmission data differing each of the cells or the sectors are transmitted to the terminal apparatus; and a transmission unit which transmits the scrambling processed first and second transmission data to the terminal apparatus respectively, and the terminal apparatus includes a reception unit which receives the first and the second transmission data and performs descrambling process to the first and the second transmission data by using the common scrambling code.03-22-2012
20090185541BASE STATION - A base station communicating with mobile stations by using a frequency band within a transmission band based on orthogonal frequency division multiplexing is disclosed. The base station includes a multiplexing unit configured to multiplex a synchronization channel, for a mobile station performing an initial cell search, in a second frequency band including a center frequency on a raster of a first frequency band and having a bandwidth corresponding to the smallest one of receivable bandwidths of the mobile stations in a system. The multiplexing unit is configured to multiplex multiple synchronization channels, for a mobile station performing a neighboring cell search, in a third frequency band including the center frequency on the raster of the first frequency band and having a bandwidth that is greater than that of the second frequency band.07-23-2009
20090052406COMMUNICATION SCHEDULING OF NETWORK NODES - In one aspect, a method to schedule network communications includes transmitting a node identification associated with a first node joining a network over a first portion of control timeslots based on a first probability, detecting nodes in the network using a second portion of the control timeslots and receiving acknowledgments from at least one of the nodes in the network. The method also includes that if a ratio of a number of acknowledgments received to a number of the nodes in the network detected is greater than a predetermined percentage: transmitting control data over the first portion of the control timeslots based on a second probability associated with a number of the nodes detected and transmitting data over the second portion of the control timeslots based on a network schedule.02-26-2009
20090052407WIRELESS BASE STATION AND METHOD FOR TRANSMITTING DATA COMMON TO USERS - A radio base station transmits user common data provided from a user common data control apparatus connected to a communication network to a plurality of mobile stations by radio. The radio base station includes a frame loss detection unit configured to detect loss of user common data that occurs on a transmission route between the radio base station and the user common data control apparatus, and a timing adjustment unit configured to change transmission timing of the user common data for the mobile station according to the loss of the user common data.02-26-2009
20130121315Uplink Synchronization Processing - Uplink synchronization of user equipment, UE, (05-16-2013
20130121316Component Carrier Configuration - A method of configuring a component carrier includes determining how timings of receiving and/or sending data for at least two aggregated component carriers in at least one time period are related; and setting the timing of receiving and/or sending data for the at least two aggregated component carriers based on the determining.05-16-2013
20130121317MACHINE TYPE COMMUNICATION SUPPORT METHOD AND APPARATUS - Provided are a machine type communication (MTC) support method and apparatus capable of providing efficient MTC service. First, when a base station transmits a subframe to which an MTC-physical control format indicator channel (PCFICH) is allocated using an MTC-PCFICH code that is cyclic-shifted on the basis of a control format indicator (CFI) to MTC user equipment (UE), the MTC UE detects the MTC-PCFICH from the received subframe by performing blind decoding of a cyclic shift, and detects a region occupied by a legacy physical downlink control channel (PDCCH) on the basis of the detected MTC-PCFICH. Accordingly, it is possible to support efficient MTC service in a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE)-based mobile communication system while maintaining compatibility with a legacy LTE station.05-16-2013
20130121318RADIO COMMUNICATION SYSTEM CHANNEL STATE INFORMATION FEEDBACK METHOD AND DEVICE - A method for Channel State Information (CSI) feedback in a wireless communication system includes: determining parameters required for the CSI feedback in a first wireless communication system, so that a feedback structure of the first wireless communication system in Physical Uplink Control Channel (PUCCH) is based on a feedback structure of a second wireless communication system in the PUCCH; notifying the parameters to a user equipment; transmitting a Channel State Information Reference Symbol (CSI-RS) to the user equipment periodically, so that the user equipment calculates the CSI required to be fed back; and receiving the CSI fed back by the user equipment according to the feedback structure of the first wireless communication system in the PUCCH in response to the CSI-RS, wherein information fed back for each BP is information obtained by jointly encoding optimum subband Channel Quality Information (CQI) with optimum subband Pre-encoding Matrix Information (PMI) in the BP.05-16-2013
20130121319TIMING ADJUSTMENT METHOD, USER EQUIPMENT, BASE STATION, AND MOBILE COMMUNICATION SYSTEM - A timing adjustment method in a mobile communication system that performs an adjustment of uplink transmission timing by random access between a user equipment and a base station, the timing adjustment method that includes performing transmission having transmission timing adjustment information in the user equipment; allocating a plurality of parameters related to a physical uplink control channel (PUCCH) resource used for communications, between the user equipment and the base station; and if a timer controlling a term of uplink transmission timing adjustment information expires during uplink communications to the base station having the uplink transmission timing adjustment information in the user equipment, releasing only a part of the allocated plurality of parameters related to the PUCCH resource.05-16-2013
20110142013Relative Time Division for Network Coding - A base station serves multiple user terminals via a relay node in a cell of a wireless network. The base station includes a time division scheme selection unit that selects a time division scheme from multiple time division schemes that optimizes a parameter associated with network coding of data transmitted between the multiple user terminals and the base station via the relay node. The base station further includes a transmission allocation unit that allocates uplink and/or downlink transmission intervals and interval lengths, based on the selected time division scheme, to each of the multiple user terminals and to the relay node. The base station also includes a notification message unit that notifies the multiple user terminals and the relay node of their respective transmission interval and interval length allocation.06-16-2011
20090073940EFFICIENT USE OF PERSISTENT SCHEDULING WITH OFDMA WIRELESS COMMUNICATIONS - Various embodiments of the invention may take advantage of persistent scheduling in a wireless network to achieve efficiencies of operation. One embodiment dynamically adjusts the duration of persistent scheduling based on changing channel conditions. When mobile stations are grouped together for persistent scheduling, another embodiment uses a bitmap to indicate which mobile stations in the group have data in the current frame. Still another embodiment eliminates the Connection Identifier from a packet header when bitmaps are being used.03-19-2009
20130215875METHOD AND APPARATUS FOR MONITORING SCHEDULING INFORMATION - Provided are a method and apparatus for monitoring scheduling information in a wireless communication system. A terminal monitors a first physical downlink control channel (PDCCH) having first scheduling information, and monitors a second PDCCH having second scheduling information based on the first scheduling information. The second scheduling information includes resource allocation for a plurality of serving cells.08-22-2013
20130215873MULTI-CHANNEL INTER BASE-STATION COMMUNICATION - The invention relates to systems and methods for spectrum sharing and communication among several wireless communication networks with overlapping service areas (or cells), especially to Wireless Regional Area Networks (WRANs). Particular embodiments of the invention disclose using a conference channel to communicate between base stations. Other embodiments use slotted coexistence windows within frames to transmit and receive information, including for reserving transmission times within subsequent frames.08-22-2013
20090201890METHOD FOR TRANSMITTING RESPONSE INFORMATION IN MOBILE COMMUNICATIONS SYSTEM - A method for transmitting radio resources in a mobile communication system is disclosed. The method includes receiving a random access channel (RACH) preamble from a plurality of UEs and transmitting response information associated with the received preambles over a common channel wherein the plurality UEs can access the common channel and receive corresponding information. If a HARQ scheme is used when a UE transmits data to the eNode-B using uplink radio resources allocated over the RACH, the eNode-B does not pre-allocate uplink radio resources required for re-transmission and performs allocation of radio resources for a first transmission of HARQ. If the re-transmission is required, the eNode-B allocates the radio resources required for the re-transmission with the NACK signal. If re-transmission is not required, the present invention can reduce an amount of wasted radio resources.08-13-2009
20090201891METHOD FOR TRANSMITTING RESPONSE INFORMATION IN MOBILE COMMUNICATIONS SYSTEM - A method for transmitting radio resources in a mobile communication system is disclosed. The method includes receiving a random access channel (RACH) preamble from a plurality of UEs and transmitting response information associated with the received preambles over a common channel wherein the plurality UEs can access the common channel and receive corresponding information. If a HARQ scheme is used when a UE transmits data to the eNode-B using uplink radio resources allocated over the RACH, the eNode-B does not pre-allocate uplink radio resources required for re-transmission and performs allocation of radio resources for a first transmission of HARQ. If the re-transmission is required, the eNode-B allocates the radio resources required for the re-transmission with the NACK signal. If re-transmission is not required, the present invention can reduce an amount of wasted radio resources.08-13-2009
20090232106Beaconing and superframe structure for millimeter wave wireless technologies - An embodiment of the present invention provides a method, comprising communicating in a wireless network with a MAC layer that uses multi-level beacons, the multi-level beacons including a Discovery beacon (DB) which is transmitted in an omni mode and an announcement beacon/frame (AB) transmitted in a beamformed mode.09-17-2009
20090097456METHOD FOR ACHIEVING FAIRNESS IN A NETWORK - Disclosed are a method and a computer program product for achieving fairness in utilization of a channel in a network. The network includes plurality of stations such that at least one station of the plurality of stations includes at least one radio. The at least one radio may fail to access the channel even when the channel is available for performing transmission. The method includes determining a number of idle slots occurred at the channel during a disruption period when the at least one radio is unavailable for transmission. The number of idle slots occurred during the disruption period may be accumulated as a credit. Based on the accumulated credit, an initial value of a backoff counter of the at least one station may be reset. The reset initial value of the backoff counter enables the at least one radio to utilize the accumulated idle slots for next transmission.04-16-2009
20090097457REPEATING TRANSMISSIONS OF SIGNALS IN COMMUNICATION SYSTEMS - Methods and apparatuses for a User Equipment (UE) to transmit an acknowledgement signal over multiple Transmission Time Intervals (TTIs). The acknowledgement signal is in response to a data packet reception and is transmitted in a different resource in each of the multiple TTIs, if the data packet reception is through a scheduling assignment, or is transmitted in the same resource in each of the multiple TTIs, if the data packet reception is periodic. The UE transmitting an acknowledgement signal over multiple TTIs should not transmit additional acknowledgement signals in subsequent TTIs before the initial acknowledgement signal transmission is completed. The UE should also not transmit data signals or other control signals in the same or subsequent TTIs before completing transmission of an acknowledgement signal over multiple TTIs.04-16-2009
20090196263WIRELESS RECEIVER - In a method for full discontinuous (DTX) control in a receiver in a wireless communication system it is determined if full DTX is allowed in a current timeslot. If not, then a full DTX indicator is set for the previous frame to false and the method ends. If full DTX is allowed, then it is determined if a special burst has been detected. If so, then the full DTX indicator is set for the previous frame to true and the method ends. If a special burst has not been detected, then it is determined if a transport format combination indicator (TFCI) has been accepted. If the TFCI has been accepted, then the full DTX indicator is set for the previous frame to false and the method ends. If the TFCI has not been accepted, then the method ends without setting the full DTX indicator for the previous frame.08-06-2009
20090175246Method of requesting and reporting link quality in an EGPRS2 system - The link quality reporting method includes measuring link quality for received radio blocks, and if there is a modulation scheme with a largest number of radio blocks, reporting link quality for the modulation scheme, and if there is a plurality of schemes with the same number of radio blocks, reporting link quality for a modulation scheme selected using a predetermined method. Performance deterioration can be minimized in a link adaptation process.07-09-2009
20090207815RESOURCE ALLOCATION FOR CO-EXISTING NETWORKS - The present invention relates to methods and arrangements for improving the capabilities of an evolved Universal Terrestrial Radio Access Network, in particular for cases when more than one radio access network applying a time-division duplex transmission mode need to co-exist on a same carrier. The invention addresses further problems concerning an efficient allocation of uplink resources and resource allocation in a handover situation. The present invention assigns an attribute in form of a distinguishing value to the time slots used for the uplink and downlink transmission on said carrier such as to avoid scheduling of transmissions via a first radio access network in downlink or uplink time slots assigned to the second radio access network and to avoid scheduling of transmissions via the second radio access network in uplink time slots assigned for transmissions in the first radio access network.08-20-2009
20090245211Method and apparatus for providing system information in ofdma cellular system - Provided is a method and apparatus for transmitting system information in an Orthogonal Frequency Division Multiple Access (OFDMA) cellular system. The system information transmitting method in a base station of a cellular system includes: generating a plurality of system information blocks that constitute the system information; generating a system information super frame including a main information block and the system information blocks; generating a system information broadcasting channel including the system information super frame; and allocating radio resources to the system information broadcasting channel in a Time Divisional Multiplexing (TDM) method.10-01-2009
20090213816Timeslot Sharing Protocol for Wireless Communication Networks - A method for transmitting information in a communication network of multiple nodes, in which information transmission is partitioned into successive superframes, and in which each superframe is partitioned into a beacon period followed by a data period, which may consist of a contention free period (CFP), and each beacon period and CFP of the data period is partitioned into timeslots. The method includes allocating to at least a first node of the multiple nodes a designated timeslot in which to transmit data in at least one of a plurality of superframes, and allocating to at least a second node of the multiple nodes the same designated timeslot in which to transmit information during at least one subsequent superframe.08-27-2009
20090252125METHOD AND PROCEDURES FOR UNSYNCHRONIZED, SYNCHRONIZED, AND SYNCHRONIZATION STAND BY COMMUNICATIONS IN E-UTRA SYSTEMS - An improved method of processing random access procedures, wherein the network receives at least one access burst to allow a network to estimate uplink received timing, the access burst containing at least a preamble, and transmits information for responding to the at least one access burst, while the mobile terminal configures at least one access burst containing at least a preamble and transmits the at least one access burst to allow a network to at least estimate uplink received timing.10-08-2009
20090245213Efficient Quality of Service (QoS) Scheduling in OFDMA Wireless Networks - A system and methods for A method for efficient Quality of Service (QoS) scheduling in OFDMA wireless networks are presented. In one embodiment, the method includes determining a number of time slots to allocate to one of a plurality of wireless mobile stations according to a linear solution that satisfies one or more data access requirements and maximizes base station utilization. The method may also include adjusting the linear solution in response to a determination that a power consumption value exceeds a predetermined threshold value. Additionally, the method may include granting the one or more mobile stations access to the time slots in accordance with the linear solution.10-01-2009
20100265924SYSTEM AND METHOD FOR ADAPTIVE BEAMFORMING TRAINING USING FIXED TIME WINDOW FOR HETEROGENEOUS ANTENNA SYSTEMS - A system and method for performing a beamforming training between heterogeneous wireless devices in a wireless network is disclosed. A number of time slots in a fixed-time period are assigned for transmit and/or receive sector training. The number of time slots assigned for transmit and/or receive sector training is based on an antenna configuration of a wireless station.10-21-2010
20080259879METHOD AND APPARATUS FOR SERVICE IDENTIFICATION IN A WIRELESS COMMUNICATION SYSTEM - Methods, apparatuses, and systems for announcing services available in a macro-diversity region of a data frame broadcast by a plurality of base stations in a single frequency network to a plurality of subscriber stations, includes a data frame with at least a data region and a macro-diversity region. A media access control (MAC) management message is generated which identifies content and characteristics of the content in the macro-diversity region. Then the MAC management message is transmitted in the data region of the data frame, wherein the MAC management message is decoded by a client station to determine if there is content of interest to the client station in the macro-diversity region of the data frame.10-23-2008
20090257409METHOD FOR GENERATING DOWNLINK FRAME, AND METHOD FOR SEARCHING CELL - The present invention relates to a method for generating a downlink frame including generating a first short sequence and a second short sequence indicating cell group information, generating a first scrambling sequence determined by the first synchronization signal, generating a second scrambling sequence determined by the first short sequence, scrambling the first short sequence with the first scrambling sequence, scrambling the second short sequence with at least the second scrambling sequence, and mapping a second synchronization signal including the scrambled first short sequence and the scrambled second short sequence in the frequency domain.10-15-2009
20090257406REDUCTION OF TRANSMISSION OVERHEAD IN A WIRELESS COMMUNICATION SYSTEM - Methods and apparatuses for reducing the overhead associated with transmitting MAPs are provided by grouping client stations in different constellations into one of two or more groups/allocations based partially upon their respective channel conditions. As a result of grouping, client stations within each group/allocation share a single resource allocation and in addition, the different groups of client stations can be scheduled such that variable modulation repeat-coding schemes can be implemented for map transmissions to each group, thereby reducing the repetition rates and overhead associated with map transmissions.10-15-2009
20090257410METHOD FOR SUPERFRAME MANAGEMENT AND COORDINATOR THEREOF - A method and a coordinator of superframe management are disclosed. The method includes receiving, by a coordinator, a GTS request from a node; determining the type of the node; allocating GTS in an active period based on GTS characteristics carried in the GTS request when the node is determined as an energy restricted device; allocating GTS in an active period and an inactive period based on GTS characteristics carried in the GTS request when the node is determined as an energy unrestricted device. As can be seen from the method of the present invention, for an energy unrestricted device, allocated GTS may extend to an inactive period. Since the length of slots allocated to the energy unrestricted node is extended, the QoS of the energy unrestricted node is improved and guaranteed. Meanwhile, since the method of the present invention considers and makes full use of the inactive period in the superframe, the network throughput is improved significantly.10-15-2009
20090257408METHOD FOR TRANSMISSION TIME INTERVAL BUNDLING IN THE UPLINK - A method and apparatus for supporting uplink Transmission Time Interval (TTI) bundling in Long Term Evolution (LTE) is provided. Described are related method and apparatus for signaling, activation/deactivation and wireless transmit/receive unit (WTRU) behavior.10-15-2009
20120195292CARRIER AGGREGATION IN WIRELESS COMMUNICATION SYSTEM - Provided is a data transmission system using a carrier aggregation. The data transmission system may assign a radio resource based on a correspondence relationship between a downlink and an uplink, and may transmit data using the assigned radio resource.08-02-2012
20120195291METHOD AND APPARATUS FOR ADVOIDING IN-DEVICE COEXISTENCE INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for coexistence interference avoidance in a user equipment (UE) having a first radio with an LTE/LTE-Advanced radio technology and a second radio based on another radio technology includes initiating a time division multiplexing (TDM) solution in the UE on a serving cell between the first and second radios, the TDM solution defining scheduling periods and unscheduled periods. In one embodiment the UE increments the PREAMBLE_TRANSMISSION_COUNTER by 1 for each random access preamble transmission reattempt during the random access procedure, and the UE considers an unscheduled period of the TDM solution when determining the next available Physical Random Access Channel (PRACH) subframe for preamble transmission.08-02-2012
20120195293METHOD, AND ASSOCIATED APPARATUS, FOR COMMUNICATING DATA AT REDUCED TRANSMISSION LATENCY IN RADIO COMMUNICATION SYSTEM HAVING SLOTTED INTERFACE - A method, and associated apparatus, facilitates the communication of data of a radio block by a sending station to a receiving station, within a single time frame. Communication resources are allocated within a single time frame across a plurality of radio carriers. And, the data corresponding to a radio block is scheduled for communication, and is communicated, within the single time frame. Reduced levels of latency relative to conventional operations is provided.08-02-2012
20100157954Multicarrier Wireless Communication Method and Wireless Communication Apparatus - In the wireless communication apparatus of the present invention, channels which are used by a plurality of radio units 06-24-2010
20120243516MOBILE COMMUNICATION METHOD, MOBILE STATION, AND RADIO BASE STATION - To reduce interference to another system and realize the coexistence with the other system by reducing the probability of False Alarm in multicarrier transmission. A mobile communication method according to the present invention, in which a mobile station UE transmits uplink data to a radio base station eNB using a plurality of carriers, includes a step A of instructing the mobile station UE to perform the transmission of uplink data using a plurality of downlink control signals including an information element for notifying the presence or absence of the transmission of uplink data using a plurality of carriers in a predetermined time frame, and a step B of deciding whether to perform the transmission of the uplink data using the plurality of carriers based on the information element included in the plurality of received downlink control signals.09-27-2012
20090122766NESTED WEIGHTED ROUND ROBIN QUEUING - In a Mobile Ad Hoc Network (MANET), nested weighted round robin queues are employed to selectively provide channel access for traffic according to a priority or Quality of Service (QoS) for data. By nesting queues within other queues, and applying a weighted round robin technique to serve each queue, relatively arbitrary service metrics may be achieved including nodal QoS for class-based traffic, avoidance of queue starvation, and so forth. Prioritized queues may also be provided for preemptive delivery of high priority traffic.05-14-2009
20090122765METHOD AND APPARATUS FOR THE SYNCHRONISATION OF THE PHYSICAL LAYERS IN HETEROGENEOUS MOBILE COMMUNICATIONS NETWORKS - The method according to the present invention provides synchronization in a heterogeneous mobile network, for the purpose of interoperability, of a wireless local area network, in which a medium is reserved for a certain service or user in radio channel reservation periods (05-14-2009
20100150115WIRELESS USB HOST AND CHANNEL TIME ALLOCATION METHOD - A wireless universal serial bus (WUSB) host is configured to execute WUSB communication with at least one WUSB device. The WUSB host includes a transmitter, a receiver, an analyzer, an adaptive channel time allocation (CTA) setting unit, and a controller. The transmitter is configured to broadcast an initial control packet to the at least one WUSB device, where the control packet includes CTA information generated for the at least one WUSB device. The receiver is configured to receive a data packet from the at least one WUSB device in a packet receiving period indicated by the CTA information included in the control packet. The analyzer is configured to analyze at least one data packet received by the receiver and to determine whether the data packet has been normally received. The adaptive CTA setting unit is configured to adaptively determine, for each of the at least one WUSB device, an optimal packet receiving period in which the analyzer has determined that the data packet has been normally received, and to set the CTA information generated for the at least one WUSB device based on the optimal packet receiving period. The controller configured to generate a subsequent control packet including the CTA information set by the adaptive CTA setting unit06-17-2010
20100150113COMMUNICATION SYSTEM USING MULTI-BAND SCHEDULING - A multi-band scheduling method determines frequency bands for each of a plurality of frames existing in a single session queue from among a plurality of frequency bands based on data characteristics of each of the plurality of frames. In particular, the multi-band scheduling method may assign a frame with a high significance to a frequency band having a superior channel state, thereby increasing communication reliability. Also, a broadcasting service system may use the multi-band scheduling method to effectively provide the broadcasting services.06-17-2010
20100002656OPPORTUNISTIC RELAY SCHEDULING IN WIRELESS COMMUNICATIONS - Systems and methodologies are described that facilitate providing opportunistic relay node communication based on scheduling of other communications in a wireless network. In particular, a relay node can maintain a backhaul link with an access point and an access link with a mobile device to facilitate communicating information therebetween. Time slots during which the backhaul link is active can be determined and avoided during scheduling access link communications with the mobile device. Furthermore, resource assignments from the access point to the mobile device can be monitored and decoded such that time slots associated therewith can also be determined and avoided. Thus, the relay node can communicate with mobile devices in time slots where the backhaul link is inactive and/or the mobile devices are not occupied communicating directly with the access point.01-07-2010
20090109937SELECTING TRANSMISSION PARAMETERS FOR CONTENTION-BASED ACCESS IN WIRELESS SYSTEMS - A method and apparatus are disclosed for selecting a channel for uplink communication includes determining whether a cell supports transmission over an enhanced random access channel (E-RACH) and selecting whether to send uplink communications over the E-RACH or a random access channel. A method for selecting a transmission time interval (TTI) for use on an E-RACH includes evaluating radio conditions measured at a user equipment and selecting a long TTI if radio conditions are bad and selecting a short TTI if radio conditions are good. Alternatively, the TTI can be selected based on an amount of data to be transmitted on the uplink. A user equipment, an integrated circuit, or a Node B can be configured to perform either method.04-30-2009
20100157956RADIO NETWORK CONTROLLER AND TRANSMITTING POWER CONTROL METHOD - Radio network controller includes a propagation delay acquisition part for acquiring a measurement value of a round-trip time between the base station device and the radio terminal, an offset acquisition part for acquiring an offset value indicating a delay at which the base station device transmits the information of transmitting power control to the radio terminal, from a reference timing, a channelization format determination part for determining the channel identification spread code transmitted to the base station device based on the measurement value of the round-trip time and the offset value acquired by the offset acquisition part, and a slot format determination part for determining the time slot information transmitted to the base station device based on the measurement value of the round-trip time and the offset value.06-24-2010
20100157955Efficient Formats of Beacon, Announcement, and Beamforming Training Frames - A method includes generating a first data unit to be transmitted during a first time period to one or several stations assumed to be beamformed, including determining a time interval that separates the first time period from a second time period, such that a second data unit is transmitted during the second time period to one or several stations assumed to be beamformed, and generating a parameter indicative of the time interval, such that the first data unit includes the parameter.06-24-2010
20120033648MULTIPLEXING CONTROL AND DATA INFORMATION FROM A USER EQUIPMENT - Methods and apparatus are provided for a User Equipment to transmit acknowledgement information together with data information to a base station during a Transmission Time Interval. A number of nominal resources for the transmission of the first set of AIBs is compared to a number of resources available to the UE for transmission of the acknowledgement information. The first set of AIBs is transmitted if the number of nominal resources is less than or equal to the number of available resources. A second set of AIBs is selected from the first set of AIBs and bundling operations are performed over respective distinct subsets of AIBs in the second set of AIBs to obtain a third set of AIBs if the number of nominal resources is greater than the number of available resources. The third set of AIBs and a fourth set of AIBs are transmitted.02-09-2012
20090109936Terminal Control Apparatus and Radio LAN System - When prohibiting data transmission by a radio communication terminal, such as a radio communication terminal L-STA, a terminal control apparatus generates radio data including information about a data transmission prohibition time interval in an L-SIG which is a header region which each radio communication terminal can recognize in common, and, if a use state checking unit 21 has checked to see that a channel CH_a is being not used, transmits the radio data to the radio communication terminal L-STA and so on in the form of frames which the radio communication terminal L-STA can recognize by using the channel CH_a.04-30-2009
20100189081METHOD, SYSTEM AND BASE STATION USING FRAME CONFIGURATION WHICH SUPPORTS RELAY FOR WIRELESS TRANSMISSION - A method using a frame structure which supports relay for wireless transmission, which divides the time slots of a sub-frame into some zones, in which the data is transmitted using the manner of TDD, wherein further including that at least one time slot in a sub-frame is set as a hybrid zone; the transmission of the data is realized through frequency division multiplexing the access link and relay link in the hybrid zone of the sub-frame; and also the multi-hop relay is supported under the two work manners of relay in sub-frame and relay in frame.07-29-2010
20090116460APPARATUS AND METHOD FOR SCHEDULING FOR SUPPORTING QUALITY OF SERVICE OF DATA SERVICE IN MOBILE INTERNET SYSTEM - An apparatus and method for setting a Quality of Service (QoS) level by a Portable Subscriber Station (PSS) in a mobile internet system are provided. The method includes determining a QoS request level serving as a QoS level required for transmitting a real-time packet if a packet to be transmitted is a real-time packet, transmitting the determined QoS request level to a Radio Access Station (RAS), receiving the QoS level determined corresponding to the QoS request level from the RAS and setting the QoS level to correspond to the received QoS level.05-07-2009
20090116458METHOD AND APPARATUS FOR EFFICIENT MULTIMEDIA DELIVERY IN A WIRELESS PACKET NETWORK - The present invention sends multiple versions of a multimedia packet to the base station, and, based on the radio channel and traffic characteristics, an appropriate version of the multimedia packet is selected to send to the mobile station at a given time. In this way, source transmission is improved to instantaneous conditions. The steps of the present invention are performed in conjunction with RTP used for multimedia transmission over internet protocol (IP) networks. In a first embodiment, the multiple versions are sent to the base station in the same RTP packet, and the base station strips out the extraneous versions. In a second embodiment, the base station receives multiple RTP packets having identical information in the packet header in many fields, and selects an appropriate one among these for transmission to the mobile station, discarding the rest.05-07-2009
20100182981Adaptive Scheduling - A communication device arranged to communicate data with another device at a given time instant according to either a first communication protocol or a second communication protocol, the communication device being constrained to transmit data according to the first communication protocol during a transmission window of predetermined duration that commences at a predetermined time instant and being arranged to, in dependence on a data communication according to the second communication protocol to be made by the communication device during that transmission window, select a time instant in that same transmission window for commencing a data transmission according to the first communication protocol.07-22-2010
20100182978COMMUNICATION SCHEDULING OF NETWORK NODES USING A CLUSTER COEFFICENT - In one aspect, a method includes scheduling network communications in a network comprising nodes connected by links, receiving at a first node updated bandwidth values from the other nodes, determining a cluster coefficient based on a number of one-hop neighbors of the first node and a number of neighbors N-hops and less of the first node, adjusting the cluster coefficient to form an adjusted cluster coefficient and determining a wait period based on the adjusted cluster coefficient. The method also includes implementing the updated bandwidth values received to determine updated node weight values of the other nodes after the wait period has expired.07-22-2010
20100182980METHOD FOR PHASE SYNCHRONIZING NODES IN A TELECOMMUNICATIONS NETWORK - For phase synchronizing nodes, on a node by node basis, following a tree-structured phase distribution network using the infrastructure of a telecommunications network, a first node transfers to a second node phase information substantially in phase with a phase reference internal to the first node and position signaling of the phase information with respect to component elements, such as bits, of a data signal carried by a link linking the nodes. The position signaling can be the number of component elements separating it from the phase information in a packet. The time to transfer the phase information through the link is precisely compensated.07-22-2010
20100182979METHOD AND APPARATUS FOR PROCESSING PRIMARY AND SECONDARY SYNCHRONIZATION SIGNALS FOR WIRELESS COMMUNICATION - Techniques for facilitating cell search by user equipments (UEs) in a wireless communication system are described. In an aspect, a primary synchronization code (PSC) sequence may be generated based on a Frank sequence and a constant amplitude sequence that is repeated multiple times. In another aspect, a set of PSC sequences may be generated based on complementary sequences having good aperiodic correlation properties and efficient implementations. In one design, PSC sequences A+B and B+A may be formed based on Golay complementary sequences A and B, there “+” denotes concatenation. In yet another aspect, a set of secondary synchronization code (SSC) sequences may be generated based on a set of base sequences and different modulation symbols of a modulation scheme. Each base sequence may be modulated by each of M possible modulation symbols for the modulation scheme to obtain M different SSC sequences.07-22-2010
20100260152Method and Arrangement in a Telecommunications System - The present invention relates to a method and arrangement for triggering a Random Access Channel (RACH) procedure for requesting uplink resources on a random access channel to a radio base station (10-14-2010
20100189082LOCATION TRACKING METHOD IN COORDINATOR-BASED WIRELESS NETWORK - A location tracking method in a coordinator-based wireless network is provided. The location tracking method in a coordinator-based wireless network includes transmitting a first frame including its own identifier and time information to the wireless network by a device associated with the wireless network in order to disclose its location information; and receiving a second frame including the location information of the device transmitted from the wireless network by the device, as a response to the first frame.07-29-2010
20100157957Method and Apparatus for Achieving System Acquisition and Other Signaling Purposes Using the Preamble in an OFDM Based Communications System - In the system acquisition process system information is non-coherently detected using correlation of reconstructed and received preamble signals, such as the primary broadcast control channel (PBCCH) and the acquisition pilots (TDM06-24-2010
20100177748Method for Operating a Communication System, Coordination Node in a Communication System and Communication System - A coordination node in a communication system, a communication system and methods for operating the communication system which allows data transmission with a guaranteed latency even when there are a relatively large number of network nodes, wherein a plurality of network nodes in the communication system are combined to form a group. The network nodes in the group are allocated a respective common address, and at least one guaranteed timeslot within a transmission frame is made available to the network nodes in the group solely for use for the data transmission by assigning it to the common address.07-15-2010
20080232333METHOD AND SYSTEM FOR SCHEDULING IN MOBILE COMMUNICATION SYSTEM - A method and an apparatus for scheduling in a mobile communication system. According to the method, for data/message pre-promised between a UE and a network node, the UE transmits a scheduling request at a predetermined timing. When the network node receives the scheduling request at the predetermined timing, the network node directly allocates a resource for transmission of the promised data/message by itself, so that the UE can instantly transmit the data/message. As a result, transmission delay can be reduced.09-25-2008
20090316666RADIO COMMUNICATION SYSTEM AND MOBILE STATION DEVICE - A mobile station device transmits a random access preamble to a base station device and performs uplink timing alignment based on the synchronization timing deviation information included in a random access response which the base station device transmits in response to the transmitted random access preamble, wherein in an uplink synchronous status, the mobile station device does not perform uplink timing alignment based on synchronization timing deviation information included in a random access response, which is a response to a random access preamble whose preamble ID is randomly selected by the mobile station device.12-24-2009
20100150114APPARATUS AND METHOD TO ALLOCATE COMMUNICATION RESOURCES FOR AN APERIODIC DATA PACKET IN A COMMUNICATION SYSTEM - Apparatus and methods for allocating communication resources for an aperiodic data packet in a communication system. A transmission time interval for an aperiodic data packet including a channel quality indicator report is allocated during at least one of a first transmission time interval and a second transmission time interval in an uplink scheduling window in accordance with an uplink scheduling grant by a network entity, and a message is assembled including said aperiodic data packet for transmission to said network entity during said at least one of said first transmission time interval and said second transmission time interval.06-17-2010
20090116459APPARATUS AND METHOD FOR CELL SEARCHING IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method for mapping a cell IDentifier (ID) for cell searching in a transmitter of a wireless communication system are provided. The method includes generating a single type of complex sequences mapped with a cell ID, and transmitting the complex sequences mapped with the cell ID to synchronization channels periodically transmitted in each slot of a physical frame.05-07-2009
20090296666MULTIPLEXING ARRANGEMENTS FOR MULTIPLE RECEIVE ANTENNAS - A method and apparatus processes a plurality of analog signals in a transceiver with multiple receive (Rx) antennas in a wireless communication system. By appropriate combining of the analog signals of each Rx antenna, this scheme allows a reduction in the number of the front end components, for example, filters, mixers and Analog to Digital Converter (ADC) devices. Subsequently, the signals are separated digitally by virtue of their unique code. The benefits associated with this scheme are at least threefold: reduced cost, area, and power consumption of a multiple antenna terminal. Additionally, proper parameter settings increase signal to Quantization Noise Ratio (SQNR) at the ADC output.12-03-2009
20100226343METHOD AND SYSTEM FOR SHARED COMMUNICATION MEDIUM IN WIRELESS COMMUNICATION SYSTEMS - Performing distributed contention-free communication channel reservation for wireless communication, is disclosed. One implementation involves providing access to a shared communication channel in a wireless network including multiple wireless stations, by performing distributed channel time reservation for contention-free access to a shared wireless channel by each wireless station, based on a prior successful contention by the wireless station for access to the channel in a wireless network.09-09-2010
20100177745FORMAT ADAPTATION OF A CONTROL CHANNEL FOR DISCONTINUOUS DATA TRANSMISSION - In a radio communication system (07-15-2010
20100177747Method of handling time alignment command during a random access procedure - Disclosed is the radio (wireless) communication system providing a radio communication service and the terminal, and more particularly, a method of handling time alignment command during a random access procedure in an Evolved Universal Mobile Telecommunications System (E-UMTS) evolved from the Universal Mobile Telecommunications System (UMTS) or a Long Term Evolution (LTE) system is provided.07-15-2010
20100238906TRANSMISSION TIMING CONTROL SYSTEM AND METHOD THEREOF, AND BASE STATION USING THE SAME AND MOBILE STATION - An adaptive transmission timing control system is provided in which a base station can correctly instruct a mobile station of a timing control signal indicating the amount of variation in transmission timing and a multipath situation can be estimated in the base station with accuracy. When control information for controlling transmission timing of an upstream signal of the mobile station is generated in the base station, the mobile station is notified of the control information in every frame of the upstream signal. Specifically, the control information is generated by determining the transmission timing using a power delay profile in which frames of the upstream signal are added and synthesized in every RTT (Round Trip Time) cycle of the upstream signal. This makes it possible to heighten resistance to an error in the timing control signal, and transmission timing control can be carried out correctly.09-23-2010
20130215874COMMUNICATION METHOD, USER EQUIPMENT AND BASE STATION - Embodiments of the present disclosure provide a communication method, a base station and a user equipment. The communication method includes: sending, by a base station, a random access response message to a user equipment UE, where the random access response message includes a timing advance command, and a value T08-22-2013
20100238910SYSTEMS AND METHODS FOR ALLOCATING AND TRANSMITTING UPLINK DATA BLOCK TRANSMISSIONS WITH PIGGY-BACKED ACK/NACK BITMAP - Systems and methods for allocating and transmitting uplink data block transmissions with piggy-backed ACK/NACK bitmap field are provided. In a specific example, a mobile station receives a request for a data block combined with control information (DBCCI). The mobile station responds by transmitting a DBCCI using at least one timeslot corresponding to a timeslot used for the request. At least some of the time, the mobile station sends data blocks in an order different than that would be otherwise used (e.g. block sequence order).09-23-2010
20100238908Method of Managing Timing Alignment Functionality for Multiple Component Carriers and Related Communication Device - A method of managing timing alignment (TA) functionality in multiple component carriers for a communication device of a wireless communication system, which includes separately managing TA functionality of a plurality of component carriers or jointly managing TA functionality of component carriers belonging to the same cell.09-23-2010
20100238907SCHEDULING METHOD FOR A GIVEN TRANSMISSION TIME SLOT - A method of scheduling for a given transmission time slot, time being divided into time slots for time division multiplex transmission to a plurality of terminals, said method comprising: 09-23-2010
20100208709METHOD OF TRANSMITTING ACK/NACK BIT SUPPORTING HARQ IN MOBILE COMMUNICATION SYSTEM SUPPORTING MULTI USER MIMO - Provided is a method of efficiently transmitting an acknowledgement/negative acknowledgement (ACK/NACK) bit supporting hybrid automatic repeat request (HARQ) in a wireless communication system supporting multi-user multi-input and multi-output (MIMO). The method transmits the same downlink code and in-phase/quadrature (I/Q) multiplexed ACK/NACK bit to two mobile stations using the same uplink resource block. Accordingly, the method can efficiently transmit the ACK/NACK bit for multi-user MIMO and efficiently use downlink radio resources.08-19-2010
20100208710METHOD FOR GENERATING CONTROL CHANNEL AND DECODING CONTROL CHANNEL, BASE STATION AND MOBILE STATION THEREOF - A control channel generation method, a control channel decoding method, and a BS and an MS for implementing the methods are provided. The control channel generation method includes placing a frame control header (FCH) and a MAP within a TTI and generating a control channel for an enhanced communication system at a position after the MAP within the TTI. Another control channel generation method includes generating a control channel for the enhanced communication system and placing an FCH and a preamble at a position after the control channel. These methods enable implementation of an enhanced system that overcomes problems of the legacy system while minimizing influence exerted upon legacy MSs in the case where the base station generates a new control channel for a new MS or where an MS decodes a new control channel.08-19-2010
20100260151Joint Processing Downlink Coordinated Multi-Point Reference Signal Support - This invention concerns multiplexing in Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) in Evolved Universal Terrestrial Radio Access Network (E-UTRAN) wireless telephony. Joint processing down link coordinated multi-point reference signaling includes combining resource signal types at a user equipment, determining conflicts between resource signals of plural user equipment, puncturing resource signals of other cell upon determining conflicts between resource signals of plural user equipment and transmitting non-punctured combined resource signals from a user equipment.10-14-2010
20120140744Method for downlink sub-frame allocation, information transmission or acquisition in a WiMax evolved system - The present invention provides a method for downlink sub-frame allocation in an evolved WiMAX system, which comprises: setting a IEEE 802.16m frame start offset as a parameter of a deployment area range, and setting a starting location of a IEEE 802.16m frame by each IEEE 802.16m base station within a same deployment area range in the system according to the IEEE 802.16m frame start offset; always allocating a start sub-frame of the IEEE 802.16m frame by the IEEE 802.16m base station as a IEEE 802.16m downlink sub-frame, and sending a super frame header including a synchronization symbol at the starting location of a first frame of a super-frame; or sending a synchronization symbol at the starting location of a first frame of a super-frame and sending a super frame header in a start sub-frame of the first frame of the super-frame; and TDM is performed on the synchronization symbol and the super frame header in the first frame of the super-frame.06-07-2012
20090257411DATA GENERATION APPARATUS, DATA GENERATION METHOD, BASE STATION, MOBILE STATION, SYNCHRONIZATION DETECTION METHOD, SECTOR IDENTIFICATION METHOD, INFORMATION DETECTION METHOD AND MOBILE COMMUNICATION SYSTEM - To reduce the process of a cell search including sector identification without increasing loads on a transmission/reception apparatus. A synchronization channel (SCH) included on downlink in a multicarrier mobile communication system is multiplied by a sector specific code and a cell specific code (step S10-15-2009
20090040985METHOD AND APPARATUS FOR SUPPORTING AD-HOC NETWORKING OVER UMTS PROTOCOL - A method and apparatus are provided for ad hoc networking over a universal mobile telecommunications system (UMTS). In the method, if user equipment (02-12-2009
20090040984APPARATUS AND METHOD FOR CHANNEL RESERVATION IN WIRELESS COMMUNICATION SYSTEMS - An exemplary method for reserving medium access in an ad hoc network comprises transmitting a reservation request by a reservation owner, the reservation request identifying a reservation allocation, a reservation target, and a reservation type. The reservation type identifies exclusive use of the reservation allocation by the reservation owner and the reservation target during a reservation period. The reservation target may employ a prioritized contention access (PCA) scheme to access the reservation allocation. Alternatively, an idle portion of the reservation allocation may be subdivided into a plurality of slots including even slots and odd slots, and the reservation owner gains access to the idle portion by starting to transmit during an even slot, while the reservation target gains access to the idle portion by starting to transmit during an odd slot. In yet another embodiment, the reservation owner transmits an outgoing clear to send (CTS) communication to the reservation target to transfer ownership of the reservation allocation to the reservation target, and receives an incoming clear to send (CTS) communication from the reservation target to regain ownership of the reservation allocation.02-12-2009
20120033647METHOD FOR SETTING UP CARRIER IN CARRIER AGGREGATION SYSTEM AND APPARATUS REQUIRED FOR SAME - The present invention relates to a wireless communication system. Specifically, the invention relates to a method for configuring a component carrier at a base station in a wireless communication system, comprising the steps of determining whether initial access is permitted to a user equipment with respect to a downlink component carrier; and transmitting a synchronization channel signal and a broadcast channel signal to at least one user equipment via the downlink component carrier, wherein the initial access permission is applied to said at least one user equipment by modifying at least one of the synchronization channel signal and the broadcast channel signal.02-09-2012
20110211562METHODS AND APPARATUSES FOR BEACON TRANSMISSION - Various methods and apparatuses for beacon transmission in an ad-hoc peer-to-peer network are disclosed. In one aspect, an apparatus for communication is disclosed, the apparatus comprising a processing system configured to sense a channel during a first period comprising at least a first portion of a beacon transmission period and select, based on the sensing, a second period comprising at least a second portion of a beacon transmission period; and a transmitter configured to transmit one or more beacons during the second period.09-01-2011
20090161637COMMUNICATION APPARATUS AND METHOD IN WIRELESS SENSOR NETWORK - Provided are a communication method and apparatus of a wireless sensor network which uses at least one channel and has a tree structure. The method includes: generating windows, where a beacon interval is divided, according to each channel; selecting a window, which is not assigned to nodes that exist within a predetermined range from a certain node, from among the generated windows; and the certain node communicating with a child node of the certain node by using a channel to which the selected window belongs during a time corresponding to the selected window.06-25-2009
20100220696METHOD AND SYSTEM FOR MANAGING COMMUNICATION IN AN OFDMA SYSTEM - The present invention provides method and system for managing communication in an orthogonal frequency division multiple access (OFDMA) system using segments in an OFDMA frame. The method includes setting at least a first segment in the OFDMA frame as a high power segment for a plurality of base station in the OFDMA system. Further, communication is established between at least one base station and at least one communication device in the OFDMA system, in response to setting the at least first segment as a high power segment. The method further includes assigning a region of the first segment to a set of base stations in the OFDMA system. The assigned region can be used by the set of base stations at high power level to communicate with communication devices located in overlapping areas. A method for coordinating uplink transmission in the OFDMA system for reducing uplink interference is also provided.09-02-2010
20100220694Ranging Method and Apparatus in Wireless Communication System - The present invention provides a ranging method and apparatus, a frame structure includes one or more downlink service time slots, a guard interval between downlink sub-frame and uplink sub-frame and one or more uplink service time slots, and the method includes calculating start time of the first uplink service time slot, configuring the start time as reference time; generating a ranging signal; subtract a sum of time period needed for sending the ranging signal and reference time delay from the reference time and configure obtained time result as time of starting to send the ranging signal; subtract the length of a special ranging time slot from the reference time and configure obtained time result as time of starting to receive the ranging signal by a BS; receiving and processing the ranging signal. By the method and apparatus, all kinds of interference are minimized and an optimum ranging function is implemented.09-02-2010
20100220690DIRECT LINK ESTABLISHMENT FOR WIRELESS NETWORKS - Method, apparatus, and computer program product embodiments are disclosed to improve establishing direct links in the Contention Based Period (CPB) of the MAC superframe. Embodiments of the invention enable scheduled and unscheduled data delivery modes (DDM) for a Contention Based Period. Embodiments of the invention reuse capabilities of the private basic service set (PBSS) Control Point (PCP) device like polling during the announcement time (AT) period in order to identify stations that want to initiate data transmission with other stations. That knowledge is further used by the control node (PCP) to facilitate training procedure between stations through the Contention Based Period (CPB) period or Dynamic service period (SP) periods. The behavior of stations within those periods is divided in two phases: the training phase, referred to as the Beamforming Training Time (BFTT) and data schedule negotiation phase referred to as the Data Delivery Mode Negotiation Time (DNT). Within the training phase, stations learn in which direction they should point their antennas and during the negotiation phase, a decision on data delivery mode is taken. Data delivery modes include mechanisms such as unscheduled delivery, scheduled delivery, or always on delivery. The phases may occur directly, one after the other, or they may be separated in time. Typically, training phase (if needed) should occur before the data negotiation phase. The beginning of the training phase or data negotiation phase (if training phase is not needed) is indicated via a meeting point.09-02-2010
20130128871UPLINK RESYNCHRONIZATION FOR USE IN COMMUNICATION SYSTEM - A method and apparatus for reusing an uplink control channel configuration associated with an uplink control channel, the method comprising the steps of, at a user agent, receiving an uplink control channel resource configuration assigned by an access device, transmitting to the access device using the control channel resources associated with the received uplink control channel resource configuration and, after a time alignment timer expires, retaining the uplink control channel resource configuration.05-23-2013
20110069682RANGING CHANNEL STRUCTURES AND METHODS - To facilitate ranging between mobile terminals and a base station in a wireless communication network employing orthogonal frequency division multiplexing (OFDM) for uplink data communications, a periodic ranging channel for use by a mobile terminal may be defined. A ranging transmission may periodically be sent as a spread signal across specified blocks of sub-carrier frequencies within a specified time slot. The duration of the ranging transmission may be less than a duration of an OFDM subframe.03-24-2011
20100296491METHOD AND AN APPARATUS FOR SYNCHRONIZATION AMONG THE NEIGHBORING BASE STATIONS IN THE WIRELESS COMMUNICATION SYSTEM - The object of the present invention is to provide a method and an apparatus for performing synchronization among neighboring base stations in the wireless communication network. According to the technical solution of the present invention, a base station turns off a transmitter randomly to receive a synchronization signal from neighboring base stations, and obtains a new local synchronization reference time based on the synchronization reference time of other neighboring base station. With the apparatus and the method provided by the present invention, the strongly robust synchronization among base stations is realized.11-25-2010
20100278155Rate-Adaptive Multiple Input/Multiple Output (MIMO) Wireless System - A rate-adaptive method of communicating over a multipath wireless communication system uses multiple links such that each end of a link uses multiple transmit and receive antennas. A number of independent streams that are to be transmitted for each link is determined based on an overall system performance measure. In addition, the system may also jointly determine the best modulation, coding, power control, and frequency assignment for each link, based on an overall system performance measure. In OFDM systems, the number of independent streams, as well as the modulation, coding, and power control, may be determined on a tone-by-tone basis based on an overall system performance measure.11-04-2010
20110128940TIMESLOT CONVERSION IN A CELLULAR COMMUNICATION SYSTEM - A cellular communication system employs an air interface time frame structure comprising time frames divided into a plurality of timeslots. In the system, a timeslot configuration processor (06-02-2011
20100296493DISTRIBUTED CHANNEL HOPPING METHOD IN WIRELESS AD-HOC NETWORK - A distributed channel hopping communication method in a low power wireless ad-hoc network. A beacon transmission and reception scheduling method using a distributed channel hopping method in a wireless ad-hoc network, the method includes: transmitting beacons using channel hopping, before establishing the wireless ad-hoc network including a plurality of nodes having a BP including at least one time slot, and receiving beacons of a plurality of neighboring nodes of each of the plurality of nodes; collecting information about the wireless ad-hoc network and information about the plurality of neighboring nodes from the received beacons; scheduling the receiving of the beacons that are transmitted from the plurality of neighboring nodes in the BP, using TDMA in each of the at least one time slot based on the information about the plurality of neighboring nodes; and scheduling transmitting of a beacon in each of the at least one time slot.11-25-2010
20100303045SYSTEMS AND METHODS FOR ASSIGNMENT AND ALLOCATION OF MIXED-TYPE COMBINATIONS OF SLOTS - Methods and systems for performing allocation of mixed-type combinations of slots are provided. Specifically, in a single assignment message, an allocation of slots over two framed and slots over four frames is performed. These can be RTTI and BTTI blocks for example.12-02-2010
20110122849METHODS AND APPARATUS FOR PROVIDING SILENCE PERIODS IN DIRECTIONAL COMMUNICATIONS NETWORKS - A method of facilitating a silence period in a directional communication network is provided. The method may comprise initiating, by a first apparatus, a listening period mode, wherein the listening period mode comprises ceasing at least a portion of current communication and configuring the first apparatus to receive a request to initiate a new communication, determining whether a request is received during a time period in the listening period mode, and transmitting a response if the request to initiate the new communication is received during the time period in the listening period mode.05-26-2011
20100322209WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD FOR DETECTING ELECTRIC FIELD INTENSITY OF WIRELESS CHANNEL, AND PROGRAM STORING MEDIUM - A wireless communication apparatus includes a communication unit and a control unit. The communication unit periodically transmits a beacon signal to wireless terminal devices existing in a network using a use channel selected from wireless channels and to detect electric field intensities of the wireless channels. The control unit detects, by the communication unit, the electric field intensities of the wireless channels in a predetermined communication limiting period in a period during which wireless communication with an unspecified wireless terminal device existing in the network is prohibited in a period in which the beacon signal is transmitted.12-23-2010
20100322207SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of timeslots within each of a plurality of contiguous radio blocks for at least one of uplink and downlink communications between the user equipment and the base station. After receiving the assignment of timeslots within each of a plurality of contiguous radio blocks, the method includes reducing a number of radio blocks and associated timeslots monitored by the user equipment.12-23-2010
20100322202WIRELESS COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, AND METHOD FOR DETERMINING TRANSMISSION PARAMETER - A wireless communication system comprises a base station, wherein the base station performs scheduling for determining a resource block allocated to a mobile station, and determines a downlink transmission parameter based on a reception quality reported from the mobile station. The base station determines a transmission parameter by a predetermined first method for determining a transmission parameter when an identical resource block as a resource block allocated to any mobile station is allocated in an area adjacent to an area to which the mobile station is connecting, and determines a transmission parameter by a second method for determining a transmission parameter which selects a transmission parameter having a transmitting efficiency equal to or more than that by the first method for determining a transmission parameter when an identical resource block as a resource block allocated to any mobile station is not allocated in an area adjacent to an area to which the mobile station is connecting.12-23-2010
20110116481Preamble Offset for Femto Base Stations - According to one example embodiment, a method may include receiving, by a first femto base station via a femto base station air interface, at least one neighbor preamble from at least one neighbor femto base station. The method may further include sending, by the first femto base station to a macro base station via a guided (DSL) Internet connection, an interference report, the interference report being based at least in part on the at least one neighbor preamble received from the at least one neighbor femto base station. The method may further include receiving, by the first femto base station from the macro base station via the guided Internet connection, a resource allocation message. The method may further include sending, by the first femto base station via the femto base station air interface, a first femto base station preamble, the first femto base station preamble being sent at a time determined at least in part by the resource allocation message.05-19-2011
20100322203SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station. The method also includes transmitting to the base station an instruction to delay a reduction of a number of timeslots monitored by the user equipment to less than the first set of timeslots for communications. In some implementations, the instruction comprises at least one of a predetermined communication and a block including at least one of a dummy block format and a specified block format. The method may include transmitting a control block to the base station, the control block identifying one or more timeslots being monitored by the user equipment12-23-2010
20100322205SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station, reducing a number of timeslots monitored by the user equipment to a reduced set of timeslots, and receiving a second assignment of a second set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station. When the second assignment message assigns a number of timeslots that is less than or equal to at least one of the number of timeslots in the reduced set of timeslots and the first set of timeslots, the method includes continuing to monitor the reduced set of timeslots.12-23-2010
20100322204SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for uplink communications between the user equipment and the base station using an Extended Dynamic Allocation (EDA) resource allocation algorithm. The method includes, after receiving the assignment of the first set of timeslots for uplink communications, reducing a number of timeslots monitored by the user equipment to less than the first set of timeslots for uplink communications, and transmitting uplink data to the base station using a non-EDA resource allocation algorithm.12-23-2010
20100322208SYNCHRONIZATION DEVICE AND SYNCHRONIZATION METHOD - There is provided a synchronization device capable of, even when transmission timings of a plurality of other ships are different, almost reliably synchronizing with the other ships during a transmission of a ship concerned and is also provided a synchronization method. The synchronization device 12-23-2010
20110002312COMMUNICATION METHOD AND CELL STATION USING THE SAME - A radio controller, which prescribes repetition of a frame formed by a plurality of downlink time slots and a plurality of uplink time slots, and which allocates a first data to be broadcast and a second data to be transmitted to a personal station with switching to the downlink time slots corresponding to each other in each frame. Further, the radio controller allocates a third data, which should be received from the personal station, to the uplink time slot corresponding to the downlink time slot allocated to the first data and to the uplink time slot corresponding to the downlink time slot allocated to the second data.01-06-2011
20110243103TRANSMITTING CONTROL DATA AND USER DATA ON A PHYSICAL UPLINK CHANNEL - A method for transmission of control data and user data on a Physical Uplink Channel (PUC) is disclosed. An instruction from a base station to use an uplink control channel and an uplink shared channel to transmit uplink data is received. Control data and user data on the uplink control channel and the uplink shared channel is transmitted.10-06-2011
20110243105METHOD AND SYSTEM FOR AUTOMATICALLY RESCALING AN ACCUMULATION BUFFER IN SYNCHRONIZATION SYSTEMS - A mobile device accumulates energy associated with each of successive PSS transmissions received from a base station. Accumulated energy values may be rescaled by a same number of bits whenever a buffer overflow condition occurs within the accumulation buffer. The mobile device may detect a correct PSS timing hypothesis utilizing the rescaled accumulated energy values within the accumulation buffer. A significant bit such as, for example, the most significant bit (MSB) or one of lesser significant bits, of each of the accumulated energy values may be monitored during the energy accumulation process to detect a buffer overflow condition. The mobile device may determine number of bits for rescaling or right shift each of the accumulated energy values in response to the detected buffer overflow condition. The resulting shifted accumulated energy values may be utilized for PSS detection. Either an integrating or filtering method is utilized during the energy accumulation process.10-06-2011
20130148637DEVICE-TO-DEVICE COMMUNICATION CONTROL METHOD - Provided is a device-to-device (D2D) communication control method. A D2D communication control method performed in a control apparatus includes allocating resources for D2D communication, and including information about the allocated resources in D2D-downlink control information (DCI) and transmitting the D2D-DCI to terminals that will perform D2D communication. Accordingly, it is possible to efficiently allocate radio resources for D2D communication, and reduce the load of self-control of terminals.06-13-2013
20130148639WHITE SPACE USAGE FOR WIRELESS LOCAL AREA NETWORK DEVICES - A method and apparatus are described including defining a neighbor set for each access point, selecting a first clock in a first access point, the selected clock having a highest accuracy as a grand master clock, advising neighboring access points to synchronize with the selected grand master clock and transmitting a message to schedule a quiet period based on the grand master clock. Also described are a method and apparatus including receiving a beacon message, inspecting clock descriptors in the beacon message, selecting a best master clock responsive to the inspection and transmitting a message to schedule a quiet period based on the selected best master clock.06-13-2013
20090067391Separate Rank and CQI Feedback in Wireless Networks - A transmission of information within a wireless network may include a first and second type of feedback information, wherein the second type of feedback information is derived based on the first type of feedback information. The first type of feedback information is embedded in a configured frame every T1 frames. The second type of feedback is embedded in a configured frame every T2 frames, wherein T1 is greater than or equal to T2. A sequence of frames is transmitted from one node in the network to a second node on an uplink control channel.03-12-2009
20090067390METHOD FOR SPECIFYING TRANSMITTING TIMES FOR CYCLICALLY SENDING OUT DATA MESSAGES, AND SUBSCRIBER DEVICE THEREFOR - A method for specifying transmitting times for cyclically sending out data messages (03-12-2009
20110019649METHODS AND SYSTEMS FOR MOBILE STATION LOCATION DETERMINATION IN WIMAX - Certain embodiments of the present disclosure provide techniques for determining and communicating the location of a mobile station within a wireless communication system.01-27-2011
20110243107Structure for OTA ENB-ENB Communication - According to one general aspect, an apparatus may include a processor. In various embodiments, the processor may be configured to select either an uplink sub-frame or a special sub-frame to employ for base station-to-base station (B2B) communication in some embodiments, the processor may be configured to cause at least one user equipment (UE), associated with the apparatus, to either refrain from transmitting or substantially receiving during the selected sub-frame In various embodiments, the processor may be configured to transmit data, from the apparatus to a receiving BS, during at least a portion of the selected sub-frame.10-06-2011
20110032912MAC PROTOCOL FOR MULTI-CHANNEL WIRELESS NETWORKS - A distributed coordination of a wireless network operating on different channels is provided by dispatching a device on each ‘home’ channel to regularly visit other ‘foreign’ channels to propagate and listen to broadcast information on these channels. The information in the broadcast packets transmitted on the home channel is relayed to the devices on the foreign channels by the dispatched device, as a ‘proxy device’ that operates on behalf of the other devices in the home channel. In a preferred embodiment, various aspects of this proxy process are optimized to reduce overhead and delays. Each channel is configured to distinguish home devices from foreign devices, to avoid contention between home and foreign devices. Acquired beacon slots on foreign channels are reserved to facilitate returning proxy devices. At the home channel, an anchor device alerts other devices of the proxy device's temporary absence and preserves the proxy device's beacon slot on the home channel.02-10-2011
20110044299VAMOS transmission schemes - A method includes assigning a communication channel for simultaneous transmission to at least first and second mobile communication terminals using a Time-Division Multiplexing (TDM) communication protocol. Upon determining that data is to be transmitted over the communication channel to both the first and the second mobile communication terminals, the data is transmitted at a first power level that is defined for transmission to the first mobile communication terminal as part of the simultaneous transmission. Upon determining that the data is to be transmitted over the communication channel only to the first mobile communication terminal, the data is transmitted at a second power level that is defined for transmission only to the first mobile communication terminal and is lower than the first power level.02-24-2011
20110044298DETERMINISTIC BACKOFF CHANNEL ACCESS - Certain aspects of the present disclosure provide techniques for determining timing of transmit opportunities for wireless stations. According to certain aspects, an access point transmits a downlink transmission containing a deterministic slot count. A station receiving the downlink transmission may determining timing of a transmit opportunity for transmitting a return frame based, at least in part, on the deterministic slot count.02-24-2011
20110243106Methods for carrier agggregation - Methods to manage multiple component carriers (CCs) efficiently in a mobile network with carrier aggregation (CA) enabled are proposed. For CC activation/deactivation, a single LCID value is used to represent both activation and deactivation command. A single command with multiple instructions is provided to activate and/or deactivate multiple CCs. In addition, unnecessary re-activation or re-inactivation of a CC is prevented, and explicit feedback for activation/deactivation is considered. For scheduling mechanism, a novel buffer status reporting (BSR) procedure is provided, where only one BSR is calculated after preparing all the transport blocks (TB) within one transmission time interval (TTI). Novel power headroom reporting (PHR) format and trigger are also provided. For DL-UL linking, various linking types are created based on whether there is carrier indicator field (CIF) in DL grant or UL grant. The various linking types are used in different applications to improve scheduling flexibility and load balancing.10-06-2011
20110044297APPARATUS AND METHOD OF TRANSMITTING DATA BLOCK ON UPLINK FREQUENCIES - A method and apparatus of generating a data block for a plurality of uplink frequencies is provided. The apparatus determines a size of a data field of the data block so that each data block matches a minimum of a first amount of data and second amount of data. The first amount of data is allowed to be transmitted by a first grant on a first uplink frequency and the second amount of data is allowed to be transmitted by a second grant on a second uplink frequency. The apparatus generates at least one data block so that the amount of data in the generated data blocks is less than multiple times the minimum of the first amount of data and the second amount of data.02-24-2011
20110044301DEVICE AND METHOD FOR TRANSMITTING AND RECEIVING SYNCHRONIZATION CHANNEL - A method of transmitting a synchronization channel is provided. A plurality of block sequences for determining at least one block identifier is generated. A plurality of subcarriers of a synchronization channel are divided into a polarity of blocks, and the plurality of block sequences are allocated to the blocks to generate a synchronization signal.02-24-2011
20110044300Techniques for Accessing a Wireless Communication System with Tune-Away Capability - To access a first communication system, a terminal determines a transmission time for an access probe, an expected response time from the system, and a protected time interval based on the transmission time and/or expected response time. The terminal determines a starting time for sending the access probe such that the protected time interval does not overlap a tune-away interval in which the terminal is to monitor anther frequency/air-interface. This starting time may be set initially to the end of a prior access probe plus a pseudo-random wait duration and may be advanced forward or moved backward in time, if needed, by a time duration selected such that the protected time interval does not overlap the tune-away interval.02-24-2011
20120033646SYSTEM ACCESS FOR HETEROGENEOUS NETWORKS - A user equipment (UE) begins to access a heterogeneous network by obtaining synchronization parameters from system signals transmitted by a weaker one of a number of neighboring cells. After synchronizing with the network, the UE obtains resource scheduling information for the weaker cell. The resource scheduling information indicates at least one resource used by the weaker cell. The UE may then cancel the stronger cells of the neighboring cell. The resource scheduling information allows the UE to identify broadcasted system blocks for the weaker cell from which it may decode and retrieve control information used to complete access to the network.02-09-2012
20110243104METHOD AND SYSTEM FOR TRACKING TIMING DRIFT IN MULTIPLE FREQUENCY HYPOTHESIS TESTING - A mobile device receives a signal comprising a PSS and performs multiple frequency hypothesis testing (MFHT) on the received signal. The mobile device starts MFHT by applying different initial frequency offsets in corresponding MFH branches. Timing drift in MFHT is compensated based on corresponding initial frequency offsets. In this regard, a PSS correlation process is performed on the received signal in each MFH branch. Resulting PSS correlation data is buffered and processed in corresponding PSS timing hypothesis buffers. The timing position of samples is updated in the PSS timing hypothesis buffers based on corresponding initial frequency offsets. Energy associated with the PSS transmissions may be accumulated utilizing corresponding PSS correlation data at updated sampling positions. The received PSS is detected based on a maximum accumulated energy associated with the PSS transmissions. Information that comes from the detected PSS is utilized by the mobile device to camp on a corresponding cell.10-06-2011
20110243102MULTIPLE TIMING ADVANCE AND CARRIER AGGREGATION - At least one of transmissions and receptions over allocated radio resources within a first timing advance group are synchronized using a first timer; and similar for allocated radio resources within a second timing advance group that are synchronized using a second timer. In response to determining that the first timer remains synchronized while the second timer is not synchronized with a radio network which has allocated the respective radio resources, a first procedure is followed for the case in which there is a primary component carrier within the second timing advance group and a different second procedure for the case in which there is no primary component carrier within the second timing advance group. In an exemplary embodiment, a message is sent to the radio network indicating that the second timer has expired. Various distinctions between the two procedures, and how the message is sent, are detailed for different embodiments.10-06-2011
20100027512TRANSMITTING DEVICE, RECEIVING DEVICE, AND METHOD USED IN MOBILE COMMUNICATION SYSTEM EMPLOYING OFDM - A transmitting device includes a transmission signal generating unit configured to generate a transmission signal by inverse-Fourier-transforming reference signals and data signals mapped to subcarriers and a transmitting unit configured to wirelessly transmit the transmission signal. In the transmitting device, a total power level allocated to signals to be transmitted in a time slot is equal to a total power level allocated to signals to be transmitted in any other time slot, and a power density per unit bandwidth of the reference signals is greater than a power density per unit bandwidth of the data signals. This configuration makes it possible to equalize the total transmission power level of all time slots and thereby to improve the power amplification efficiency. Also, with this configuration, since the reference signals are transmitted with a higher power than that for other signals, it is possible to improve the accuracy of channel estimation.02-04-2010
20110243108METHOD FOR ENABLING A TERMINAL TO EFFICIENTLY DETECT AND SEARCH FOR A FEMTO BASE STATION - A method for enabling a mobile station (MS) to efficiently detect and search for a femto base station is disclosed. The method comprises the steps of receiving a signal including information of a femto base station; and searching for the femto base station on the basis of the received information, wherein said received information is a sequence including at least one of the following: the entirety or a part of a femto base station ID (Identity), the entirety or a part of a cell ID, a sector ID, the entirety or a part of a CSG (Closed Subscriber Group) ID, and a frequency allocation index. In the step of receiving femto base station information, a preamble and data containing information on the femto base station are received. In the step of detecting the femto base station, the femto base station is separately detected on the basis of the received information. Here, the entirety or a part of the preamble sequence of the femto base station which is used for the separation of the femto base station is reused as a scrambling sequence for said data.10-06-2011
20090323642TRANSMITTER, RECEIVER, MOBILE COMMUNICATION SYSTEM AND SYNCHRONIZATION CHANNEL - A transmitter includes an amplitude adjustment unit multiplying an amplitude adjustment sequence value for adjusting amplitude with a synchronization channel transmitted from a base station for establishing synchronization with a mobile station.12-31-2009
20110134891WiMAX Scheduling Algorithm for Co-Located WiFi and WiMAX Central Points - After receiving an indication that a co-located central point is receiving co-location interference, a scheduling algorithm may be initiated. The scheduling may include allocating equal number of central points within each WiMAX frame. Each central point is allocated into a minimum number of frames subject to WiMAX capacity constraints.06-09-2011
20110243109RANDOM ACCESS METHOD, RADIO COMMUNICATION TERMINAL DEVICE, RECEIVING METHOD, AND BASE STATION APPARATUS - There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST10-06-2011
20090080384INTERFERENCE MITIGATION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for mitigating interference on the reverse link in a wireless communication system are described. Terminals interfering with one another and communicating with different sectors on the reverse link may be identified. The terminals may be scheduled in time intervals selected to mitigate interference. For example, each terminal may be scheduled on at least one pseudo-randomly selected time interval, on a pseudo-randomly selected interlace that includes evenly spaced time intervals, on a different set of at least one time interval, on a different interlace, etc. A terminal may receive an assignment of at least one time interval for transmission on the reverse link to a serving sector. The at least one time interval may be selected to mitigate interference to terminals in neighbor sectors.03-26-2009
20100260155METHOD AND APPARATUS FOR TIME-ALIGNING TRANSMISSIONS FROM MULTIPLE BASE STATIONS IN A CDMA COMMUNICATION SYSTEM - Schemes to time-align transmissions from multiple base stations to a terminal. To achieve time-alignment, differences between the arrival times of transmissions from the base stations, as observed at the terminal, are determined and provided to the system and used to adjust the timing at the base stations such that terminal-specific radio frames arrive at the terminal within a particular time window. In one scheme, a time difference between two base stations is partitioned into a frame-level time difference and a chip-level time difference. Whenever requested to perform and report time difference measurements, the terminal measures the chip-level timing for each candidate base station relative to a reference base station. Additionally, the terminal also measures the frame-level timing and includes this information in the time difference measurement only if required. Otherwise, the terminal sets the frame-level part to a predetermined value (e.g., zero).10-14-2010
20100008333METHOD OF TRANSMITTING SCHEDULING REFERENCE SIGNAL - A method of transmitting a scheduling reference signal (SRS) for uplink scheduling is provided. The method includes transmitting a SRS on a first partial SRS transmission band in a first transmitting time, and transmitting the SRS on a second partial SRS transmission band in a second transmitting time, wherein the first and the second partial SRS transmission bands are parts of a full SRS transmission band and have exclusive positions with each other in the full SRS transmission band, the full SRS transmission band selected for uplink scheduling, the full SRS transmission band comprising a plurality of partial SRS transmission bands.01-14-2010
20100008335WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - As a first slot transmitting notification from an electronic device to a host device, a second slot transmitting a coupling request and a third slot transmitting notification except the coupling request are provided, and whether or not to provide the second slot may be controlled. Accordingly, it makes it possible to control a period when the second slot is provided, namely a period when the coupling request is performed, prevent the host device and the electronic device from being coupled erroneously by the unintended coupling request, and couple the host device being a communication object and the electronic device appropriately.01-14-2010
20100008334RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION DEVICE - A radio communication device includes a communication data selection unit for selecting from the received radio communication data containing communication time reservation request information in which a time slot for performing data transmission source radio communication device is described and a communication information analysis unit for extracting an identifier of the source radio communication device and the data transmission reservation time slot from the communication time reservation request information in the radio communication data. When the received radio communication data is addressed to the local device, a communication/response information generation unit correlates the identifier to the reservation time slot, records them in a communication reservation table, and generates communication time reservation response information including information of the reservation time slot.01-14-2010
20100226342Distributed Ad Hoc Network Protocol Using Synchronous Shared Beacon Signaling - A method for forming a protocol structure for use in an ad hoc, distributed, scaleable wireless sensor node network which enables nodes to join the network autonomously without there being a designated, permanent central time reference and for enabling such nodes to synchronize timing with each other and with other nodes in the network. The method involves discovering the active channel changing sequence used by the network, synchronizing communications of a new node with the remainder of the nodes in the network and scanning communications channels to detect merging clusters of nodes.09-09-2010
20100014488Mobile Communication System and Base Station Device - In a base station device (01-21-2010
20100054213METHOD AND APPARATUS FOR DIRECT RELIABLE LINK ACCESS - A wireless communication device and a method to establish a protected time for communication over a direct link between two stations of the same network. The method includes configuring at least one antenna for a direct link establishment, switching to a listening mode and waiting for a channel time allocation (CTA) for transmission. After receiving the CTA a source station sends a first frame to a destination station based on a channel time allocation value and receive a second frame from the destination station to complete an establishment the CTA.03-04-2010
20110085522METHOD FOR ALLOCATING SLOTS FOR EMERGENCY DATA AND METHOD FOR TRANSMITTING EMERGENCY DATA USING THE SAME - There are provided a method for allocating slots for emergency data and a method for transmitting emergency data using the same. The method for allocating slots for emergency data may be configured to include: allocating slots for emergency data to superframes that are configured to include a beacon period indicating a start of the superframe, a contention access period (CAP) transmitting data through contention, and a contention free period (CFP) transmitting data without contention; and providing slot allocating information on the emergency data to nodes. As a result, the method for allocating slots for emergency data allocates the separate slots for the emergency data while avoiding the contention access period (CAP) frequently used, which are used in the inter-node contention mode to enable the plurality of nodes to use one slot for one emergency data. In particular, even though there may be the risk of transmission failure due to the contention mode, the occurrence frequency of the emergency message, or the like, is low, which results in a similar effect to allocating the dedicated slots for the emergency data to the plurality of nodes while avoiding the transmission failure.04-14-2011
20100061346CHANNEL QUALITY FEEDBACK SIGNAL FOR WIRELESS NETWORKS - According to an example embodiment, a method may include broadcasting, in a downlink direction to one or more mobile stations in a wireless network, a message that includes a channel quality threshold, and receiving a signal from at least one of the one or more mobile stations, the signal being received in an uplink direction on one or more resource blocks that have a channel quality, as measured by one of the one or more mobile station in a downlink direction, that is greater than or equal to the channel quality threshold.03-11-2010
20110176520TECHNIQUES FOR EFFICIENT DATA TRANSFERS IN A BODY AREA NETWORK - A method for transferring data among devices in a body area network (BAN). The method comprises dividing an access time to a wireless medium of the BAN into at least a contention-based period (07-21-2011
20110176519Signalling of Multiple-User Multiple-Input and Multiple-Output Transmissions in High-Speed Packet Access Systems - A method for signaling multiple-user multiple-input and multiple-output in a high speed packet access system is described. A multiple-user multiple-input and multiple-output parameter is determined. A message that includes the multiple-user multiple-input and multiple-output parameter is determined. The message is sent to a wireless device. The method may be performed by a user equipment, a Node B or a radio network controller.07-21-2011
20100135258WIRELESS HIGH-DATE RATE COMMUNICATIONS - A base station apparatus for increasing the throughput of a packetized cellular data network is provided. The base station apparatus includes an orthogonal frequency division multiplexed (OFDM) encoder and a time division multiplexer. The OFDM encoder is configured to encode a plurality of data streams into a corresponding plurality of OFDM tones, where one of the corresponding plurality of OFDM tones includes an OFDM preamble tone that indicates a mapping of remaining OFDM tones within the plurality of OFDM tones to one or more of a plurality of mobile stations. The time division multiplexer is operatively coupled to the OFDM encoder, and is configured to time multiplex a plurality of streams over a forward link channel for receipt by the plurality of mobile stations, where the corresponding plurality of OFDM tones are encoded as one of the plurality of streams.06-03-2010
20100135260Resource Allocation Method In Wireless Base Station Device, And Wireless Base Station Device - A wireless resource allocation method, including classifying a plurality of wireless terminal devices into a first group and a second group according to wireless communication quality; and performing allocation, such that transmission time period allocated to wireless terminal device having the best wireless communication quality from among the wireless terminal devices belonging to the first group, and transmission time period allocated to the wireless terminal device having the best wireless communication quality from among the wireless terminal devices belonging to the second group, are temporally in closest proximity or overlap.06-03-2010
20100135256METHOD FOR ALLOCATING MULTIPLE RADIO COMMUNICATION PERIODS - A method for allocating multiple radio communication periods to an MS supporting co-existence mode is disclosed. The method includes transmitting a co-existence mode request message to a BS by the MS, receiving information about the position of a start frame for the co-existence mode by a co-existence mode response message as a response to the co-existence mode request message from the BS by the MS, and receiving information about an allocated Wi-Fi beacon reception period by an unsolicited co-existence mode response message in the start frame from the BS by the MS. A frame allocation pattern for allocating periods for communications with a Bluetooth or Wi-Fi system using a frequency band adjacent to that of an IEEE 802.16m system can be provided according to an IEEE 802.16m frame structure, and an MS with multiple radio interfaces can communicate with each system reliably, while minimizing interference between systems.06-03-2010
20100135259METHOD AND APPARATUS FOR CHANGING COMMUNICATION LINK BETWEEN SOURCE DEVICES AND SINK DEVICES - Provided is a method of changing a communication link between source devices and sink devices. The method includes in a first downlink period, broadcasting an uplink period allocation message to the sink devices and passive source devices by an active source device, which establishes a communication link with a primary sink device from among the sink devices; during a first uplink period, broadcasting by a primary passive source device a link set message for establishing a communication link with the primary sink device to all the source devices in the network; during a second downlink period, relaying the link set message to all the sink devices in the network, wherein the link set message is relayed by the active source device; and during a second uplink period, establishing a communication link between the primary sink device and the primary passive source device by the primary sink device.06-03-2010
20100135257BASE STATION, MOBILE STATION, AND SYNCHRONIZATION CHANNEL TRANSMISSION METHOD - A base station communicating with a mobile station in a radio communication system by using OFDM for downlink is disclosed. The base station includes a sequence selecting unit configured to select multiple synchronization signal sequences; a synchronization signal generating unit configured to generate a secondary synchronization channel based on a part of the selected synchronization signal sequences and another part of the selected synchronization signal sequences; and a transmitting unit configured to transmit the secondary synchronization channel. The secondary synchronization channel is used to detect cell-specific information.06-03-2010
20090028114STAGGERING FORWARD AND REVERSE WIRELESS CHANNEL ALLOCATION TIMING - An apparatus and method for staggering forward and reverse channel time slot allocation in a wireless communication allows a wireless communication unit, such as a base station processor or a subscriber access unit, to transmit a return message in less than a full time slot interval. Forward and reverse channel allocation occurs as a cycle of time slots occurring at periodic timing intervals. Transmission of a wireless frame carrying a message payload occurs at the beginning of the time slot. Since the forward and reverse channel allocation cycles need not be concurrent, or in phase, these cycles may be staggered with respect to each other. By staggering the forward and reverse channel allocation timing interval, the return message is sent after only a portion of a full timing interval, rather than being delayed up to one complete timing interval.01-29-2009
20110249657MOBILE TERMINAL APPARATUS AND RADIO BASE STATION APPARATUS - A mobile terminal apparatus and radio base station apparatus supporting each of a plurality of mobile communication systems when the plurality of mobile communication systems coexists, where the mobile terminal apparatus performs a cell search using an SCH signal included in one downlink CC among a plurality of downlink CCs, and where the radio base station apparatus broadcasts a DBCH signal including information of an uplink CC paired with an initial downlink CC including the SCH signal obtained by the cell search, and transmits a response signal of an RACH signal from the mobile terminal apparatus to the mobile terminal apparatus in the initial downlink CC, and where the mobile terminal apparatus transmits a shared channel signal including information of a transmission/reception bandwidth of the mobile terminal apparatus to the radio base station apparatus in the uplink CC, and where the radio base station apparatus transmits a control signal including assignment information of a downlink CC and an uplink CC based on the information of the transmission and reception bandwidth of the mobile terminal apparatus to the mobile terminal apparatus, and where the radio base station apparatus and the mobile terminal apparatus communicate with each other in the downlink CC and the uplink CC based on the assignment information after random access.10-13-2011
20110249656Sending Feedback for Multiple Downlink Carriers - Feedback information for multiple serving cells are transmitted on high speed dedicated physical control channel (HS-DPCCH). A slot format for transmitting feedback information is determined based on the number of configured secondary serving cells and whether multiple input multiple-output (MIMO) is configured in the serving cells. Spreading factor is reduced to 128 when two secondary serving cells are configured and MIMO is configured in at least one of the two configured secondary serving cells, or when three secondary serving cells are configured. The serving cells are grouped into feedback groups, each feedback group having one or more serving cells. Channel coding may be applied to feedback information for the feedback groups. The resulting encoded feedback information for the feedback groups is concatenated to form composite feedback information.10-13-2011
20090213815Contention protocols for wireless medium access in communication networks - Wireless medium access in a communication network having a number of terminals is controlled by defining protocol message units for transmission by a given terminal which units correspond to operational states of at least one of the terminal and the medium. A number of time slots are allocated for transmission of packets from each terminal, and a number of contention opportunities are defined at the beginning of each time slot. Priority and backoff mechanisms are defined and applied at each terminal during the contention opportunities in the slots. Packets are then transmitted by the terminal within the slots while (1) minimizing the occurrence of empty slots at times when packets are available for transmission, and (2) minimizing the number of slots during which two or more packets are detected on the medium simultaneously at the terminal.08-27-2009
20110080896METHOD AND APPARATUS FOR MITIGATING DOWNLINK CONTROL CHANNEL INTERFERENCE04-07-2011
20110075640Method, System and Mobile Station for Obtaining Information - A method for obtaining information includes receiving carrier information and offset information of other carriers carried on a primary carrier, where the offset information includes frame number information, time difference information or window information; and obtaining, according to the carrier information and the offset information, data resources carried on the other carriers.03-31-2011
20110075639UPLINK ACCESS REQUEST IN AN OFDM COMMUNICATION ENVIRONMENT - The claimed subject matter relates to acquiring channel access in a wireless communication environment. A wireless terminal may transmit first and second sets of tones over respective first and second contiguous transmission periods. The first and second tone sets may be disjoint from each other and may each comprise a number of contiguous tones. The terminal may then refrain from transmitting during a third time period in order to receive a grant signal from a base station in response to the access request. The beginnings of the first time period and the second time period may be a function of a determined uplink transmission time.03-31-2011
20110075638TIME SLICING TECHNIQUES FOR VARIABLE DATA RATE ENCODING - The disclosure is directed to a multi-channel encoder. The multi-channel encoder is configured to generate an encoded data stream. The multi-channel encoder includes a plurality of channel encoders, and a processor configured to allocate time slots in the encoded data stream to each of the channel encoders to vary the rate of data provided by each of the channel encoders into the encoded data stream.03-31-2011
20110075637METHOD AND APPARATUS FOR PROCESSING A PSEUDO PILOT SIGNAL - The present invention provides a method and apparatus for processing a pseudo pilot signal. The method includes: transmitting a data service carrier signal on a first frequency in a first cell to a mobile station (MS); and transmitting a pseudo pilot signal corresponding to a voice service carrier signal on a first frequency in a second cell in at least one timeslot of the timeslots for transmitting the data service carrier signal. The apparatus includes: a first baseband processing module, configured to transmit a data service carrier signal on a first frequency in a first cell to an MS; a second baseband processing module, configured to transmit a pseudo pilot signal corresponding to a voice service carrier signal on a first frequency in a second cell; and a switching processing module, configured to switch the data service carrier signal transmitted by the first baseband processing module and the pseudo pilot signal transmitted by the second baseband processing module so that the pseudo pilot signal is transmitted in at least one timeslot of the timeslots for transmitting the data service carrier signal. With the present invention, the system complexity is decreased.03-31-2011
20080267136Allocation of Access Slots to Mobile Stations in Order to Count the Number of Stations Interested in a Mbms (Multimedia Broadcast/Multicast Service) - A method of operating a radio network, such as UMTS or cdma2000, which comprises at least one primary station (PS), i.e. and access point or bare station, and a plurality of secondary stations (SSI, SS10-30-2008
20110069683ALLOCATION METHOD AND BASE STATION APPARATUS USING THE SAME - One object of the present invention is to prevent deterioration of communication quality and perform handover while maintaining a stable communication state. The terminal detection unit classifies a terminal device 03-24-2011
20110069684METHOD OF CHANNEL ASSESSMENT AND CHANNEL SEARCHING IN A WIRELESS NETWORK - A method of channel assessment and channel searching in a wireless network is disclosed. The wireless network separately performs a channel assessment procedure and a channel searching procedure for channel change or another object. The channel assessment procedure is to measure a status or quality of a channel which is currently used in the wireless network. A coordinator of the wireless network designates a time interval for the channel assessment to notify other device of it. The channel assessment procedure may be performed periodically, and is preferably scheduled to allow other devices not to use the channel for the time interval which at least one device performs channel assessment.03-24-2011
20120201230Method for Transmitting Physical Downlink Control Channel (PDCCH) Information, Method for Determining PDCCH Search Space and Devices Thereof - A method for transmitting Physical Downlink Control Channel (PDCCH) information, a method for determining PDCCH search space and devices thereof are disclosed in the present embodiments. The method for determining PDCCH search space includes the following step: Node B (NB) determines the different search spaces corresponding to different PDCCHs according to Carrier Indicator (CI) information. By applying the technical solution provided in the embodiments of the present invention, the CI information is introduced in the search space determining process, so that different search spaces can be allocated to the cross-carrier PDCCHs of one User Equipment (UE) and the NB and UE are able to exactly determine the search spaces of PDCCHs in each downlink carrier, therefore reducing the blocking probability during PDCCH scheduling process and improving the reliability of PDCCH transmission.08-09-2012
20120201229RELAY BACKHAUL UPLINK HARQ PROTOCOL - The present invention relates to a method for configuring a retransmission protocol on the uplink between a network node and a relay node in a mobile communication system, the configuration being performed at a network node or at a relay node, and to the corresponding relay node apparatus and network node apparatus capable of configuring the retransmission protocol. In particular, the number of transmission processes is determined based on the position of time intervals available for the transmission and may be selected in order to control the round trip time of the retransmission protocol. Once the number of transmission processes has been configured, the transmission processes are mapped on the available time intervals in a predefined order and repetitively.08-09-2012
20120201228Method for Synchronizing PDCP Operations after RRC Connection Re-establishment in a Wireless Communication System and Related Apparatus Thereof - A method used in an E-UTRAN for synchronizing PDCP operations after a RRC connection re-establishment procedure with a user equipment (UE) is provided. The method includes: initiating an RRC reconfiguration procedure to resume all radio bearers other than a signaling radio bearer 1 (SRB1) when an RRC connection is re-established; re-transmitting a designated group of PDCP Service Data Units (SDUs) to the UE when a data radio bearer (DRB) mapped on Radio Link Control (RLC) Acknowledged Mode (AM) is resumed.08-09-2012
20110149922Method and apparatus for enhancing signal-to-noise ratio of position location measurements - A method and apparatus for generating and use of a position location reference signal that allows a receiver to receive position location signals from relatively weak signal generators when in the presence of a strong signal source. The position location reference signals from multiple sources can be synchronized to occur within a scheduled time slot of a time division multiplexed communication system. During the scheduled time slot, each signal source can configure a transmission that includes a media access control address that corresponds to a value reserved for position location signals. Each signal source also configures the transmission to include a position location reference signal that corresponds to the signal source. The position location signals from each of the signal sources is positioned to occur at a time within the data portion of the scheduled time slot that no neighboring signal source transmits its corresponding position location signal.06-23-2011
20110149923WIRELESS BASE STATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless base station apparatus for performing wireless communication with a plurality of wireless communication apparatuses includes a communication processing unit for allocating wireless resources to the wireless communication apparatuses to perform wireless communication, a statistics processing unit for obtaining information related to communication status of the wireless communication apparatuses in wireless communication, and an intermittent arrangement determination unit for detecting a wireless communication apparatus to be allocated with wireless resource at intervals of a predetermined number of communication frames based on the information obtained. The communication processing unit intermittently allocates the same time slot to a plurality of wireless communication apparatuses detected by the intermittent arrangement determination unit at intervals of a predetermined number of communication frames.06-23-2011
20110149921METHOD FOR ASSIGNING AND MANAGING REFERENCE SIGNALS IN A MULTI-CELL ENVIRONMENT, AND NETWORK DEVICE AND TERMINAL FOR APPLYING THE METHOD - A method of assigning and managing reference signals in a multi-cell environment, and a network device and a terminal for applying the method, are provided. Reference signal patterns may be assigned to multiple femtocells through a long term coordination of a central control unit that is used to control multiple cells.06-23-2011
20110149920MULTI-RADIO PLATFORM AND METHOD FOR MITIGATING INTERFERENCE BETWEEN CO-LOCATED RADIOS - Embodiments of a multi-radio platform and method for mitigating the effects of interference are generally described herein. In some embodiments, the multi-radio platform includes co-located radios including a Bluetooth transceiver and a wireless network transceiver. The wireless network transceiver may apply a transmit-active noise-cancellation matrix to signals received by the wireless network transceiver when the Bluetooth transceiver is transmitting and may apply a transmit-inactive noise-cancellation matrix to signals received when the Bluetooth transceiver is not transmitting. The transmit-active noise-cancellation matrix may mitigate effects of emissions generated by the Bluetooth transceiver when the Bluetooth transceiver is transmitting. The transmit-inactive noise-cancellation matrix is to mitigate effects of platform noise generated by platform elements of the multi-radio platform.06-23-2011
20110149918DEVICE, SYSTEM AND METHOD OF SIMULTANEOUSLY COMMUNICATING WITH A GROUP OF WIRELESS COMMUNICATION DEVICES - Some demonstrative embodiments include devices, systems and/or methods of simultaneously communicating with a group of wireless communication devices. For example, a device may include a wireless communication unit to communicate with at least one group of a plurality of wireless communication devices over a wireless communication medium, wherein the wireless communication unit is to reserve the wireless communication medium for a time period, during which the wireless communication unit is to simultaneously transmit two or more different wireless communication transmissions to two or more wireless communication devices of the group, respectively. Other embodiments are described and claimed.06-23-2011
20100322206SYSTEM AND METHOD FOR ADJUSTING MONITORING OF TIMESLOTS DURING DATA TRANSMISSION - A method for coordinating communications between a user equipment and a base station is presented. The method includes receiving an assignment of a first set of timeslots for at least one of uplink and downlink communications between the user equipment and the base station, and reducing a number of timeslots monitored by the user equipment to less than the first set of timeslots for communications. The method includes, after reducing the number of timeslots monitored by the user equipment to less than the first set of timeslots for communications, transmitting a block to the base station, the block signaling a resumption of timeslot monitoring by the user equipment, wherein the block includes at least one of a dummy block format, a specified block format, and a predetermined communication, and increasing the number of timeslots monitored by the user equipment.12-23-2010
20110002310RADIO NETWORK CONTROLLER AND FRAME TRANSMISSION ADJUSTING METHOD - In adjusting transmission timings of frames sequentially transmitted from a radio network controller to a base transceiver station, the frame transmission schedule is changed in appropriate manner in response to a necessary Timing Adjustment control frame (TA). In a first period of time, which is a period of ignoring the received TA, the adjustment of the transmission timings of the frames is suspended. Also, out of the first period, the first period is varied in accordance with a variety of the delayed amount in transmission between the radio network controller and the base transceiver station. There is provided a period of ignoring a first control frame to be informed from the radio base transceiver station to the radio network controller. By setting the period to be a variable value, the synchronisation control is accomplished with certainty.01-06-2011
20100260150METHODS AND APPARATUSES FOR PROVIDING PEER-TO-PEER POSITIONING IN WIRELESS NETWORKS - Methods and apparatus are provided for use in wireless networks to provide and/or otherwise support peer-to-peer positioning operations.10-14-2010
20100260154Method and Apparatus for Generating Reference Signals for Accurate Time-Difference of Arrival Estimation - A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols. Upon receiving the subframe, a wireless communication device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.10-14-2010
20100260156Apparatus and method for transmitting system information block in a broadband wireless communication system - An operation method of the femto BS includes configuring a subframe set including at least two types of subframes among subframes having predefined different structures, and, if a duration of a subframe carrying the subframe set arrives, transmitting one of the subframes included in the subframe set according to predefined order. The subframes having the predefined different structures include a first type subframe including a synchronization signal and a Master Information Block (MIB), a second type subframe including the synchronization signal, a third type subframe including the synchronization signal and system information, a fourth type subframe including the synchronization signal, the MIB, and the system information, and a fifth type subframe including the system information.10-14-2010
20100296492PROTOCOL FOR WIRELESS NETWORKS - A wireless transmission method includes providing a commanding node and a plurality of sub-networks. Each of the sub-networks includes at least one responding node. Time slots are assigned to the sub-networks such that time slots assigned to each sub-network are interleaved in time with time slots assigned to at least one other sub-network. Within each time slot, at least one acknowledgement packet is transmitted from the at least one responding node before a command packet is sent from the commanding node within the time slot. Each at least one acknowledgement packet indicates whether or not a most recent command packet from the commanding node was correctly received by the responding node.11-25-2010
20100118836Method and Arrangement in a Telecommunication System - The present invention relates to a method for sending reserved sub-carriers to a UE for the purpose of reducing peak to average power ratio (PAPR) of the transmitted signal to ensure sufficient quality of the modulated signal to achieve high data rate, including the steps of sending the information related to dynamic activation and deactivation of reserved sub-carriers on a common channel, which is readable for all UEs in idle and in connected mode; dynamically activating the transmission of the reserved sub-carriers in a cell when high modulation quality is to be maintained; dynamically deactivating the transmission of the reserved sub-carriers in a cell when high modulation quality is not required. The invention furthermore relates to a radio base station and a UE relating to said method.05-13-2010
20100254356 Timing Alignment in an LTE System10-07-2010
20100098032LOCAL AND WIDE-AREA TRANSMISSIONS IN A WIRELESS BROADCAST NETWORK - To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network, each base station processes data for a wide-area transmission in accordance with a first mode (or coding and modulation scheme) to generate data symbols for the wide-area transmission and processes data for a local transmission in accordance with a second mode to generate data symbols for the local transmission. The first and second modes are selected based on the desired coverage for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide-area transmissions. The data, pilots, and overhead information for local and wide-area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast.04-22-2010
20110149919Dynamic Adjustment of Reordering Release Timer - Aspects describe dynamically adjusting a reordering release timer to mitigate latency in a MAC-hs queue. Information already available at a mobile device is utilized for current packets and for missing packets to dynamically adjust the value of the T1 timer in an effort to mitigate latency. Further, the network might provide information regarding HARQ attempts, which mobile device can utilize for computing the dynamic value of the T1 timer. The network might signal the amount of time the mobile device should subtract from timer T1 for every HARQ transmission. Further, the T1 timer might only be dynamically adjusted for a subset of radio bearers.06-23-2011
20110255520COMMUNICATION BETWEEN OVERLAPPING WRAN CELLS WORKING IN DIFFERENT CHANNELS - A common control channel for base station (“BS”)/consumer premise equipment (“CPE”) communication in areas of overlapping coverage by wireless regional area network (“WRAN”) cells operating on different working channels is disclosed. A common control channel is selected from among the various working channels sensed in each of a plurality of overlapping WRAN cells so as to enable BS/CPE and BS/BS communication. Once chosen, each CPE within the overlapping area communicates with the controlling BS via an enhanced coexistence beacon protocol messages. These messages include timing and other synchronization information.10-20-2011
20090129344ENHANCED STREAM LAYER TRANSMISSION FOR MEDIAFLO MOBILE MULTIMEDIA MULTICAST SYSTEM - Enhancing stream layer transmission for a MediaFLO mobile multimedia multicast system comprising a transmitter and a receiver includes sending a plurality of multicast logical channels (MLC) forming a data frame from the transmitter, wherein each MLC comprises multimedia data streams comprising a stream 05-21-2009
20090086685METHOD AND APPARATUS FOR TIME-BASED FAST ACK/NACK RESPONSE OPERATION WITH ENHANCED GENERAL PACKET RADIO SERVICE 2 UPLINK - A method and apparatus for time-based fast positive acknowledgement (ACK)/negative acknowledgement (NACK) reporting (FANR) operation with enhanced general packet radio service 2 uplink (HUGE) are disclosed. A wireless transmit/receive unit (WTRU) configures downlink FANR operation and EGPRS-2 mode uplink transmission not to be in conflict. A modulation and coding scheme (MCS) for the EGPRS-2 mode may be limited to an MCS containing at most two RLC data blocks. Alternatively, three or more piggybacked ACK/NACK (PAN) bits may be used for a time-based FANR operation if an EGPRS-2 mode is configured. Alternatively, at least one PAN bit may indicate an ACK/NACK for a group of RLC data blocks. The number of PAN bits for a time-based FANR operation may be configured by the network. The downlink FANR operation may be dynamically switched between time-based and SSN-based.04-02-2009
20090185540METHOD AND APPARATUS FOR HIGH-SPEED TRANSMISSION ON RACH - A method and apparatus for signaling in a wireless transmit receive unit (WTRU). The method includes the WTRU receiving a value of a maximum number of retransmissions and retransmitting data in a plurality of hybrid automatic retransmission request (HARQ) processes limited by the value of a maximum number of retransmission. The WTRU is configured to receive a cell-specific, fixed or absolute grant on a broadcast channel.07-23-2009
20090022110Transmission of Multiple Information Elements in Multiple Channels - A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network is performed by first receiving an allocation of M>1 reverse link channels for transmission of N>0 information elements. N information elements are produced. A group of K (possibly only one) reverse link channels is selected from the M allocated reverse link channels, using at least one of the N produced information elements, wherein the group of K reverse link channels comprises at least one channel, such that 001-22-2009
20090022112METHOD AND APPARATUS FOR NOTIFYING STATUS OF MOBILE NODE IN A WIRELESS LOCAL AREA NETWORK SYSTEM USING VISIBLE LIGHT COMMUNICATION - A method and apparatus for notifying status of an MN in a WLAN system using VLC are provided, in which an AP allocates a first predetermined number of time slots per frame as unallocated slots, for status notification of an initially accessing MN and allocates a second predetermined number of time slots per frame as reserved slots, for status notification of an initially accessing MN and uplink data transmission of an MN, and the MN transmits a visible light signal carrying status information about the MN in one of an unallocated slot and a reserved slot, if the MN initially accesses the AP.01-22-2009
20090022111APPARATUS AND METHOD FOR CIRCUIT MODE RESOURCE ALLOCATION IN BROADBAND WIRELESS ACCESS (BWA) SYSTEM - An apparatus and method for circuit mode resource allocation in a Broadband Wireless Access (BWA) system is disclosed. The method includes generating a first resource allocation message which comprises currently used slot bitmap information with respect to a circuit mode region in a frame; allocating resources to one or more terminals with respect to currently unused slots in the circuit mode region according to the currently used slot bitmap information; and generating a second resource allocation message which comprises information relating to the resource allocation. Thus, the effective circuit mode resource allocation can be achieved without holes in the circuit mode, while maintaining backward compatibility with the existing standards.01-22-2009
20080267137COMPUTER GENERATED SEQUENCES FOR DOWNLINK AND UPLINK SIGNALS IN WIRELESS COMMUNICATION SYSTEMS - The present disclosure provides a base station transmitter, a user equipment transmitter and methods of operating the base station and user equipment transmitters. In one embodiment, the base station transmitter is for use with a cellular communication system and includes a synchronization unit configured to provide a randomly-generated constant amplitude zero autocorrelation (random-CAZAC) sequence corresponding to a downlink synchronization signal. Additionally, the base station transmitter also includes a transmit unit configured to transmit the downlink synchronization signal using the random-CAZAC sequence. In another embodiment, the user equipment transmitter is for use with a cellular communication system and includes a reference signal unit configured to provide a random-CAZAC sequence for an uplink reference signal corresponding to a one resource block allocation of the user equipment. The user equipment transmitter also includes a transmit unit configured to transmit the uplink reference signal using the random-CAZAC sequence.10-30-2008
20080267139SYSTEM AND METHOD FOR EFFICIENTLY ALLOCATING WIRELESS RESOURCES - Dynamic resource allocation is performed by first generating a plurality of slot sequences. A figure of merit based on weighted interference signal code power (ISCP) and weighted resource units is then generated for each timeslot of each slot sequence. The timeslots within each slot sequence are then arranged in a decreasing figure of merit. The slot sequences are the processed to determine whether they can support the code to be transmitted.10-30-2008
20100296494SERVICE DIFFERENTIATION AND SERVICE LEVEL AGREEMENTS FOR WIRELESS ACCESS CLIENTS - Differentiated services are provided through service level agreements (SLAs) between access nodes and some of the clients using a wireless access network. Client devices include internal devices that are compliant with service-related specifi-cations published by the access nodes. Client devices also may include non-compliant external and legacy devices, as well as out-side interferers. The access nodes control target SLAs for each client device. The access nodes and the internal client devices per-form rate limiting to ensure that a device's target SLA is adhered to. The service-related specifications include schedules to ensure preferential access for preferred internal client devices. The internal client devices send usage and bandwidth availability feedback to the access node they are associated with, enabling the access node to come up with better schedules for meeting the preferred internal devices' SLAs in view of the network conditions reported via the feedback.11-25-2010
20100309890CHANNEL ESTIMATION APPARATUS OF MOBILE COMMUNICATION RECEIVER AND TIME TRACKING METHOD FOR CHANNEL ESTIMATION - A time tracking method is provided for channel estimation of a mobile communication receiver and a related channel estimation apparatus is provided. The channel estimation apparatus includes a channel estimation control unit for analyzing and outputting a delay profile of a multipath channel by using a channel estimation value of each multi-tap, a tracking mode control unit for calculating a distance between an earliest tap and a preset margin tap by using the delay profile analysis results, and for generating and outputting a hopping tracking control signal for tracking a position of the earliest tap to a position of the margin tap at a time when the determined distance is greater than a preset hopping threshold value, and a hopping tracking mode execution unit for receiving the hopping tracking control signal and for shifting the position of the earliest tap to the position of the margin tap at a time.12-09-2010
20100309892Method and Arrangement for Transmitting a Data Unit in a Wireless Communications System - An object of the present invention is to provide a mechanism for improving coverage in a wireless communications system. The object is achieved by a method in a sending node (12-09-2010
20100309889Radio Communication Device, Communication Control Device, Radio Communication System, Radio Communication Method, and Communication Control Method - There is provided a radio communication device including a communication unit that communicates with a base station by using a given radio multiplexing architecture, a storage unit that stores time slot information, and a control unit that controls the communication unit to communicate with the base station by using the given radio multiplexing architecture in a time slot indicated by the time slot information.12-09-2010
20100309891ALLOCATION OF CONTROL CHANNEL FOR RADIO RESOURCE ASSIGNMENT IN WIRELESS COMMUNICATION SYSTEMS - A wireless communication device for receiving a frame corresponding to a transmission time interval, the frame having a control channel including at least two control channel elements and an embedded bit sequence, the location of which indicates a portion of the control channel used for radio resource assignment, wherein the portion of the control channel used for radio resource assignment may be less than the entire control channel of the frame having the embedded bit sequence, and wherein the at least two frames may use different portions of the control channel for radio resource assignment.12-09-2010
20080253337METHOD AND SYSTEM FOR SFBC/STBC TRANSMISSION OF ORTHOGONALLY CODED SIGNALS WITH ANGLE FEEDBACK IN A DIVERSITY TRANSMISSION SYSTEM - Aspects of a method and system for SFBC/STBC transmission of orthogonally coded signals with angle feedback in a diversity transmission system are presented. Exemplary aspects of the system may include one or more circuits that enables generation of a plurality of concurrently transmitted signal groups based on a computed matrix such that a product of the plurality of concurrently transmitted signal groups, the computed matrix and/or a transformed version of the computed matrix, may generate at least one set of orthogonal signals based on at least one rotation angle.10-16-2008
20080205352COMMUNICATION BETWEEN OVERLAPPING WRAN CELLS WORKING IN DIFFERENT CHANNELS - A common control channel for base station (“BS”)/consumer premise equipment (“CPE”) communication in areas of overlapping coverage by wireless regional area network (“WRAN”) cells operating on different working channels is disclosed. A common control channel is selected from among the various working channels sensed in each of a plurality of overlapping WRAN cells so as to enable BS/CPE and BS/BS communication. Once chosen, each CPE within the overlapping area communicates with the controlling BS via an enhanced coexistence beacon protocol messages. These messages include timing and other synchronization information.08-28-2008
20100284377Method and Apparatus For Sending Signaling For Data Transmission In A Wireless Communication System - Techniques for sending signaling for data transmission in a wireless communication system are described. A transmitter may process signaling for a data transmission based on a block code, a convolutional code, a transformation, etc. The signaling may comprise an identifier of an intended receiver for the data transmission and/or other information such as data rate, resource assignment, etc. The signaling for the data transmission may be mapped to a first set of tones in a time slot. Data for the data transmission may be mapped to a second set of tones in the time slot. The entire signaling may be sent on the first set of tones. Alternatively, the first set of tones may be selected from among multiple sets of tones or pseudo-randomly selected from among available tones based on a first part of the signaling. A second part of the signaling may be sent on the first set of tones.11-11-2010
20100329221Transmission Mode Control Method And Communication Terminal Device - A transmission scheme controlling method performed by a radio communication device capable of performing radio communication with a different radio communication device in a transmission scheme in which a collision with another transmitting signal may occur is characterized by comprising the steps of: in response to communication requests collected from other radio communication devices, judging whether communication based on time slots is performed; when it is judged that the communication based on the time slots is performed, performing processing for assigning the time slots according to the collected communication requests; and when it is judged that the communication based on the time slots is not performed, performing the ratio communication with the different radio communication device in the transmission scheme.12-30-2010
20100329220METHOD OF TRANSMITTING UPLINK DATA IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting uplink data in a wireless communication system is provided. The method includes receiving an uplink grant and transmitting uplink data through a resource block which is indicated by the resource block index in a control region of a slot indicated by the slot indicator in the subframe.12-30-2010
20110002311GATEWAY, BASE STATION AND METHOD FOR WINDOW-BASED CONTENT SYNCHRONIZATION - The present disclosure relates to a gateway, base station and method for window-based content synchronization technology. The gateway according the present invention comprises; a receiving unit for receiving a data packet; a window counting unit for counting the data packet, such that a predetermined number of packets forms a window, the number being a window size; a sequence number counting unit for generating a sequence number of the packet; a timestamp setting unit for setting a timestamp for the packet; and a processing unit for including the generated sequence number, the timestamp and a byte count in the packet to be transmitted. The base station according to the present invention comprises: a receiving unit for receiving a data packet; an information extracting unit for extracting a sequence number, a timestamp and byte count information from the data packet; a window counting unit for counting the received packets based on the extracted sequence number so as to form a window; and a processing unit for setting an anticipated air interface transmission time for the packets in the current window based on the extracted timestamp. The gateway or base station according to the present invention operates well with statistical multiplexing and has an improved overall performance in terms of synchronization processing delay and control packets load.01-06-2011
20110134893METHOD OF TRANSMITTING AND RECEIVING PAGING INFORMATION - Various methods of transmitting paging information in a wireless access system are disclosed. A method of transmitting paging information from a base station belonging to at least one paging groups according to one embodiment of the present invention includes the steps of allocating a paging group offset (PGO) per one specific one of at least one paging groups, transmitting a message including one paging group offset (PGO) per one specific paging group, and transmitting a broadcast channel (BCH) including paging group formation on the specific paging group at a timing point indicated by the paging group offset.06-09-2011
20120147859Method and Apparatus for Random Access - Method and apparatus for random access are provided. A base station sends access control information to a UE. The access control information includes an identifier of the UE and an access control command. The UE obtains an access time slot and a preamble signature according to the access control information received from the bases station. Then the UE initiate, according to the access time slot and the preamble signature, a random access procedure with a preamble power ramping. With the embodiments of the present invention, time delay in random access procedures may be decreased so as to enable the UE to complete the uplink access as quickly as possible and provide a feedback for a downlink transmission. Therefore efficiencies of the downlink transmission are enhanced.06-14-2012
20090201888SYSTEM AND METHOD FOR WIRELESS COMMUNICATION OF UNCOMPRESSED VIDEO HAVING A DUAL-BEACON MECHANISM FOR TWO DEVICE TYPES - A system and method of wireless data communication over a network of devices and device types are disclosed. In one aspect, the beacons of a first device type are sent and received from devices of the first device type or a second device type, by a first device of the first device type. A plurality of beacons of the first device type or the second device type are sent or received from a plurality of devices of the first device type or a second device type, by a second device of the second device type. Each of channels by the first device is sensed. A free channel for data communication between the first device and the second device is located. Beacons of the first device type are sent out by the first device. Channel reservations of time blocks are made of the free channel for data transmissions.08-13-2009
20110044295METHOD AND APPARATUS FOR TRANSMISSION MODE SELECTION IN COOPERATIVE RELAY - In accordance with an example embodiment of the present invention, an apparatus, comprising at least one processor; and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following: select at least two relay stations from a plurality of relay stations; determine a transmission mode for cooperatively forwarding a data packet by the selected relay stations; schedule a resource allocation for the selected relay stations based at least in part on the transmission mode; and notify the selected relay stations of the resource allocation, is disclosed.02-24-2011
20100080195MOBILE COMMUNICATION SYSTEM - A mobile communication system including a plurality of base stations includes a radio communicator for communicating with mobile terminal devices with a plurality of carriers, and a communication controller for changing radio field intensity of the radio communicator; and a management device including: a storage for storing information of each of the base stations, the information including time slots and a number of registration requests from the mobile terminal devices in each communication area of the base station in accordance with the time slots, and an instructor for instructing to change radio field intensity of the plurality of carriers to the radio communicator in the base stations on the bases of the stored information in the storage when the number of the registration requests in the time slot exceed a specified predetermined threshold value.04-01-2010
20100067499RADIO COMMUNICATION EQUIPMENT - Radio communication equipment performs radio communication with a first radio terminal group in a first period by using a frequency commonly for use by an adjacent base station, and with a second radio terminal group in a second period by using a frequency not commonly for use by the adjacent base station. The radio communication equipment includes a control unit to adjust time allocation of the first period and the second period; and a radio communication unit to perform radio communication with the first radio terminal group and the second radio terminal group according to the time allocation adjusted by the control unit.03-18-2010
20100067498METHOD FOR RE-DIRECTION OF UPLINK ACCESS - A method for prompt re-direction of uplink access of a specific user equipment is disclosed. For initial random access to a network, if a user equipment transmits a preamble, which includes information related to random access, to a network node, the network node sends grant/rejection information of the preamble and re-direction information as a response message to the preamble. In comparison with the related art which controls a rush of an access request of the user equipment through a second response message from the network node, since the rush of an access request is controlled by a first response message in the present invention, it is possible to promptly deal with abnormal communication status, thereby improving communication efficiency.03-18-2010
20100067500METHOD AND APPARATUS FOR CREATING COMMON PHYSICAL CHANNEL - The present invention relates to a common channel generating method and device in a downlink. Receiving performance by the mobile station is improved by efficiently allocating the resource and generating the common channel in the downlink. Also, transmission diversity applied to the number of transmit antennas of the base station and the common channel can be easily detected, thereby acquiring the mobile station's initial process.03-18-2010
20100067502METHOD AND APPARATUS FOR DERIVING TRANSMISSION TIMING OF A DOWNLINK CONTROL CHANNEL IN SUPPORT OF ENHANCED UPLINK OPERATION - A remote station for wireless communication is disclosed. The remote station includes a transmitter configured to transmit packet data on an uplink channel and a receiver. The receiver is configured to receive a first frame having a downlink dedicated physical channel, the first frame being defined by a first propagation delay and a first time offset relative to a reference timing based on a common control physical channel and receive a second frame having a downlink dedicated control channel responsive to the packet data received by a base station, a beginning of the second frame being defined by a second propagation delay and a second time offset from the reference timing, the second time offset being a function of the first time offset.03-18-2010
20100067501Faint Connectivity Session Setup - A method for communicating is provided. The method comprises communicating regarding transmission time interval (TTI) bundling related to one or more random access (RA) messages.03-18-2010
20100067496METHODS FOR CONTROLLING AN UPLINK SIGNAL TRANSMISSION POWER AND COMMUNICATION DEVICES - In an embodiment, a method for controlling an uplink signal transmission power in a communication device is provided. The method may include receiving a first message in a control channel modification time period, the first message including scheduling information about the timing of the transmission of a second message, the second message including an uplink signal transmission power related information, which will be transmitted by another communication device in the same control channel modification time period, controlling the communication device to receive the second message in accordance with the scheduling information, and controlling the uplink signal transmission power, which is used by the communication device for transmitting signals, depending on the uplink signal transmission power related information.03-18-2010
20100260153METHOD FOR DATA TRANSMISSION IN A MESH MODE OF A WIRELESS COMMUNICATION NETWORK - In a method for data transmission in a mesh mode of a wireless communication network, which enables a decentralized transmission of data packets within data streams via communication links from one node to another node, data streams are classified in several service classes specifying quality requirements for data streams. Bandwidth reservations are performed between nodes of a communication link, each bandwidth reservation being dependent on the service class of the data stream to be transmitted via the communication link and comprising the exchange of control messages for reserving time slots for transmitting the data stream of the service class in subsequent data time frames via the communication link. The transmission of data streams is scheduled dependent on the service classes. The method is particularly used in the mesh mode of the standard IEEE 802.16 and enables a seamless coexistence of the point-to-multipoint mode and the mesh mode of the standard.10-14-2010
20090245212REPORTING OF ACK AND CQI INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for reporting acknowledgement (ACK) information and channel quality indication (CQI) information in a wireless communication system are described. A user equipment (UE) may be able to receive data from up to two cells with dual-cell operation. The UE may determine CQI information for a first cell, determine CQI information for a second cell, and send the CQI information for both cells on a feedback channel with a single channelization code. The UE may process a control channel from each cell and, if control information is received from the cell, may further process a data channel from the cell to receive data sent to the UE. The UE may determine ACK information for each cell based on processing results for the data and control channels from that cell. The UE may send the ACK information for both cells on the feedback channel with the single channelization code.10-01-2009
20110051697Apparatus, System, and Method for Access Procedure Enhancements - A mobile communication device for access procedure enhancement is provided. In the mobile communication device, a wireless module performs wireless transmissions and receptions to and from a service network. Also, a controller module transmits an access probe to the service network via the wireless module, and retransmits the access probe in response to not receiving an acknowledgement of the access probe from the service network via the wireless module in a waiting period of time. The waiting period of time is determined according to a coherence-time related offset. The controller module further repeats the retransmission of the access probe until the acknowledgement of the access probe is received from the service network via the wireless module03-03-2011
20110051696METHOD OF RADIO COMMUNICATION, MOBILE TERMINAL, AND RADIO NETWORK CONTROL APPARATUS - A method of radio communication in a radio communication system including a plurality of mobile terminals and a base transceiver station. The method includes establishing radio communication between a first mobile terminal and the base transceiver station by using a first physical channel and a first dedicated channel, wherein a slot of the first physical channel is shared by time-division multiplexing by first and second control information, the first control information being for the first dedicated channel of the first mobile terminal, the second control information being for a second dedicated channel of a second mobile terminal, and switching the first physical channel to a second physical channel on the basis of a first communication quality of the established radio communication, wherein a slot of the second physical channel is dedicated to the first control information.03-03-2011
20110051695Methods and Devices for Scheduling Transmissions in a Wireless Network Based on Traffic Priority and Channel Conditions - Methods and systems for assigning time-division multiplexed (TDM) slots in a multi-channel TDM system are presented. Preferably, a radio access network (RAN) assigns forward link and reverse link transmissions between the RAN and one or more wireless communication devices (WCDs) to TDM slots on various wireless channels. When making these assignments, the RAN may take into account (i) the priority of data that the RAN queues for the WCDs, and (ii) the signal quality at which the WCDs can receive the various wireless channels.03-03-2011
20110134892RADIO BASE STATION AND RADIO RESOURCE ALLOCATION METHOD - A radio base station of the present invention is provided with an index setting unit configured to set an index to a radio resource in a frequency domain, a resource allocation class determining unit is configured to determine a resource allocation class of a radio communication terminal from among resource allocation classes which are classified according to radio resource allocation patterns fixedly allocated at a fixed time interval T06-09-2011
20110188481METHODS AND APPARATUS FOR SUBFRAME INTERLACING IN HETEROGENEOUS NETWORKS - Methods and apparatus for providing wireless communications using subframe partitioning are disclosed. Two or more base stations may be allocated subframes in a radio frame. All or part of the subframe allocation may be provided to the associated user equipment (UEs), which may use it to determine signal metrics during assigned subframes for an associated base station.08-04-2011
20090175248APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING ENHANCED RACH IN A MOBILE COMMUNICATION SYSTEM - A method for transmitting an enhanced Random Access CHannel (RACH) in a User Equipment (UE) in a mobile communication system is provided, in which the UE transmits an uplink preamble to a Node B and upon receipt of an ACKnowledgment (ACK) for the uplink preamble, transmits an Enhanced Uplink Dedicated CHannel (E-DCH) and a Dedicated Physical Control CHannel (DPCCH) to the Node B. The transmission of the DPCCH starts before the transmission of the E-DCH.07-09-2009
20090175245BASE STATION, MOBILE STATION, AND METHOD OF COMMUNICATING - A disclosed base station apparatus includes: a TTI-length determining unit which determines, based on downlink receive quality information transmitted from a mobile station, whether data is to be transmitted in a first TTI with, as a unit, a predetermined period no shorter than a subframe length, or in a second TTI with, as a unit, a period shorter than the first TTI; a number-of-subframes determining unit which determines a number of subframes making up the determined TTI; a reporting unit which reports the determined TTI and the number of subframes making up the determined TTI to the mobile station; and07-09-2009
20110176522METHOD AND SYSTEM FOR MANAGING COMMUNICATION IN WIRELESS COMMUNICATION NETWORK - A method and system for managing communication in a Multi-User Reusing One time Slot (MUROS) based communication network is provided. The method includes selecting a first communication device from a plurality of communication devices in the communication network, determining a Timing Advance (TA) associated with the first communication device and identifying a type of the first communication device, identifying a second communication device from the plurality of communication devices based on a TA associated with the second communication device, a type of the second communication device, the TA of the first communication device, and the type of the first communication device, and pairing the first communication device and the second communication device in a first time slot for establishing communication with the plurality of communication devices.07-21-2011
20110176521APPARATUS AND METHOD OF TRANSMITTING PACKET OF NODE IN WIRELESS SENSOR NETWORK - Provided is an apparatus and method of transmitting a packet of a node in a wireless sensor network. The apparatus includes a plurality of priority queues, wherein packets to be transmitted to neighboring nodes are stored in each of the priority queues according to transmission priority, and the packets are transmitted according to the priority of each priority queue. Accordingly, a delay of a packet that requires real-time transmission is minimized by using priority queues in a node.07-21-2011
20100020771METHOD AND APPARATUS FOR MITIGATING PILOT POLLUTION IN A WIRELESS NETWORK - Techniques for mitigating pilot pollution in a wireless network are described. In an aspect, pilot pollution may be mitigated by reducing density and/or transmit power of common pilots whenever possible. A cell may send a common pilot at a first density and a first transmit power level during a first time period and may send the common pilot at a second density and a second transmit power level during a second time period. The second density may be lower than the first density and/or the second transmit power level may be lower than the first transmit power level. Lower density may be achieved by sending the common pilot less frequently, on fewer subcarriers, and/or from fewer antennas. The cell may determine whether to reduce the density and/or transmit power of the common pilot based on network loading, SINRs of terminals, etc. In another aspect, pilot pollution may be mitigated by performing pilot cancellation at a terminal.01-28-2010
20110216745SYSTEM AND METHOD FOR SIGNALING OVERHEAD INFORMATION IN A NETWORK - A system for signaling overhead information in a network includes a receiver configured to receive a radio frequency communication signal comprising at least one superframe, the at least one superframe comprising overhead information that identifies a location of a first data stream carried in the at least one superframe, and a trailer associated with the first data stream, the trailer including at least a portion of the overhead information that identifies the location of the first data stream in a subsequent superframe without the receiver processing the overhead information in the subsequent superframe.09-08-2011
20120099565SYNCHRONIZATION ACQUISITION METHOD AND APPARATUS IN MULTI-CARRIER SYSTEM - Provided are a synchronization acquisition method and apparatus in a multi-carrier system. A terminal acquires the synchronization for a first downlink component carrier by detecting a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) in the first downlink component carrier. The terminal acquires the synchronization for a second downlink component carrier by detecting a reference signal in the second downlink component carrier.04-26-2012
20120099564METHOD AND APPARATUS FOR DISTRIBUTING VIDEO PACKETS OVER MULTIPLE BEARERS FOR PROVIDING UNEQUAL PACKET LOSS PROTECTION - A method and apparatus distributes video packets over multiple bearers for providing unequal packet loss protection. The method includes a packet processing function receiving a plurality of packets collectively comprising a flow of sequential data included in a sequence of media frames. For each packet, the packet processing function: applies a bearer selection process to select one of a plurality of bearers for transporting the packet over an access network, wherein each bearer has a different quality of service level which influences the probability of the transported packets being intentionally discarded by the access network, wherein the bearer selection process causes distribution of the plurality of packets across the plurality of bearers such that each bearer carries non-consecutive packets both within any given media frame and across sequential media frames and provides unequal packet loss protection for the packets in the plurality; and provides an indication of the selected bearer.04-26-2012
20090219897DTX detection when ACK/NACK is transmitted with scheduling request - A method for signaling between a mobile apparatus (09-03-2009
20120147857METHODS AND APPARATUS FOR RESOLVING TRANSMISSION PRIORITY IN A WIRELESS PEER-TO-PEER NETWORK - Methods and apparatus for initiating a traffic transmission between a first device and a second device are disclosed. One method includes determining whether the first device has a receive priority or a transmit priority over the second device during a first data frame, determining whether the first device has data to transmit to the second device during the first data frame, transmitting, from the first device, a receive priority control signal during a receive priority control slot (Rxp) corresponding to the first data frame if the first device has the receive priority and no data to transmit, and transmitting, from the first device, a transmit priority control signal during a transmit priority control slot (Txp) corresponding to the first data frame if the first device has the transmit priority and data to transmit.06-14-2012
20120307811APPARATUS AND METHOD FOR ESTABLISHING UPLINK SYNCHRONIZATION IN A WIRELESS COMMUNICATION SYSTEM - A method for establishing uplink synchronization in a base station, according to one embodiment of the present description, comprises performing a process for connection to user equipment, setting component carrier aggregation information, generating uplink timing groups from the set component carrier aggregation, and transmitting, via a plurality of component carriers, information on the thus-generated uplink timing groups simultaneously to the user equipment.12-06-2012
20120307809ALTERNATE CHANNEL FOR CARRYING SELECTED MESSAGE TYPES - A method is implemented by a subscriber unit in a wireless communication for establishing a network session. The subscriber unit encodes an acknowledgment message for transmission on a shared reverse link channel to a base station. Acknowledgment information associated with a received session tag at the subscriber unit to the base station is transmitted over the shared reverse link channel, on a condition that the session tag is received from a network server via the base station on a forward link channel and identified by the subscriber unit. The acknowledgment is transmitted on a reverse traffic channel on a condition that the session ID tag is not identified by the subscriber unit.12-06-2012
20120307810RANDOM TIMING OFFSET DETERMINATION - Methods, systems and instructions stored on computer-readable media for generating, at a first node, a plurality of data units. The plurality of data units are spread with a common pseudo-noise (PN) code that is used by a plurality of nodes, including the first node and a second node, that are in communication with an access point. A random timing offset is determined, and a first data unit is transmitted to the access point at a first time based upon a slot start time and the random timing offset. The first data unit is transmitted while at least a portion of a second signal is transmitted from the second node such that both the first data unit and the second signal are received by the access point. The second signal is transmitted at a second time based on the slot time and a second random timing offset.12-06-2012
20120307808DETERMINING UE INTERFERENCE DURING HANDOVER IN ENHANCED INTER-CELL INTERFERENCE COORDINATION - A method of wireless communication determines a UE interference condition during handover. A target cell receives information that indicates an interference condition of a user equipment (UE). Prior to completing handover, the target cell determines an expected UE interference condition that will arise after completing the handover of the UE at a target base station. The information can be determined based on a message from the UE. The UE message may indicate which cell is the strongest, indicate the interference condition at both the source and target cells, or only provide a measurement of the strongest cell. Based on the UE measurements, the target eNodeB may schedule the UE on resources based on the expected interference condition at the UE that may arise after the handover.12-06-2012
20120307806Video sub-reservation protocol in a wireless ecosystem - Video sub-reservation protocol in a wireless ecosystem. Appropriate access is provided to a number of wireless communication devices to ensure very high performance and a high perceptual user experience with respect to media related content communications. Access to the communication medium (e.g., air within a wireless location system) is provided to various wireless communication devices in a manner as to minimize collisions and contention. In one instance, different respective access assignment periods are sub-divided to give respective communication medium access to various devices within the system. Such sub-reservation may be adaptive in response to any of a number of considerations (e.g., traffic, device processing history, etc.). Also, such sub-reservation may provide respective time specificity at or during which certain devices may conduct communications, but may also specify any other operational parameters (e.g., which frequency spectra to use, duration of such communications, modulation coding set (MCS) to use, etc.).12-06-2012
20120307807WIRELESS COMMUNICATION SYSTEM - A wireless communication system equipped with a base station, and at least one of wireless communication terminals which perform packet communication with respect to the base station by using at least one carrier, and wireless communication terminals which perform packet communications with respect to the base station by using a plurality of carriers at the same time. The wireless communication terminal includes: an allocation information allocating section for allocating allocation information for one carrier or a plurality of carriers to a wireless communication terminal when at least one carrier is allocated to the wireless communication terminal; and an allocation information storage section for storing said allocation information for one carrier or a plurality of carriers; wherein the wireless communication terminal judges a destination of a communication packet transmitted from the base station based upon the allocation information contained in a header of the transmitted packet so as to be communicated with the base station.12-06-2012
20090310571Medium Access Control in Industrial and Automotive Wireless with Combined Wired and Wireless Sensor Networks - An embodiment of the invention relates to a local area sensor network including a central unit configured to receive a resource allocation request from a priority network sensor in a reserved timeslot and in response to designate a shared timeslot allocation. The priority network sensor transmits a resource allocation request in a reserved timeslot, and the sensor transmits data in the allocated shared timeslot. A sensor network can be formed with multiple gateways that each communicate over wired and wireless portions of the network. The central unit communicates with the gateways over the wired portion of the network. Wireless nodes communicate wirelessly with the gateways. The central unit receives a plurality of link quality indicators from the gateways for respective wireless paths to the wireless sensors, and selects a gateway for relaying a message from the central unit to a wireless sensor based on the link quality indicators.12-17-2009
20090316665DOWNLINK TRANSMISSION SYNCHRONIZATION AND DATA BUFFER SIZING IN A RADIO ACCESS NETWORK - Method and apparatus are disclosed for calculating a target connection frame number (CFN) for a data frame in wireless communications. An update to an offset between the CFN and a radio access network frame number is computed. A target CFN variable is incremented in response to a received timer signal. The value of an update variable is checked to determine whether a new value of the offset has been received since a previous update to the offset. A new target CFN is calculated using a current target CFN and the new value of the offset on a condition that the new value of the offset has been received. The current target CFN is set equal to the new target CFN.12-24-2009
20100272075TRANSPORT FORMAT SELECTION IN ENHANCED UL - In a method and a device for selecting transport format in a User Equipment transmitting data in a cellular radio system using an Enhanced Uplink (EUL) with Discontinuous Reception (DRX) the determination of whether or not to transmit data in the next Transmission Time Interval (TTI) is based on the amount of data in the User Equipment transmission buffer.10-28-2010
20090290558BANDWIDTH ALLOCATION IN AD HOC NETWORKS - A potentially interfering node updatable database associated with the MAC, in each node, contains a limited number of unique identification numbers (UNIDs) referring to nodes likely to interfere with the transmission of the node. Typically these UNIDs are one or two hop neighbours. In addition to the actual nodes, the database also contains unique ID numbers of dummy nodes. Practically, the node database does not distinguish between real or dummy nodes. Selecting a certain node to transmit at a certain TS is brought about by a “which node is to transmit in the next TS” (WINIT) function. This function takes into account all the UNIDs available in the UNID databases of the different nodes. When the WINIT selects a specific UNID to be active in the upcoming TS, the relevant MAC element in the respective node, invokes the transmission.11-26-2009
20090135789Channel Estimation - To allocate a VSAT to a MODCOD in a DVB-S2 ACM system, the HUB periodically transmits pilot frames of alternating MODCODs, which is identified by the VSAT. An FPGA at a VSAT site maintains telemetry of good and bad frames. A processor polls this telemetry to determine the optimal MODCOD to be allocated to the VSAT.05-28-2009
20130010766SUPPORT FOR MULTI-RADIO COEXISTENCE DURING CONNECTION SETUP - In a user equipment (UE) with multiple radio access technologies (RATs), communications of one RAT engaged in connection setup may be protected from communications of other RATs. Techniques for protecting such connection setups include performing power backoff on a potentially interfering RAT or implementing a time division multiplexing (TDM) solution alternating when certain RATs are active.01-10-2013
20130010767COEXISTENCE OF PRIORITY BROADCAST AND UNICAST IN PEER-TO-PEER NETWORKS - A method, a computer program product, and an apparatus are provided. In one configuration, the apparatus transmits a first broadcast signal including information indicating an intention to use a unicast resource for a broadcast. In addition, the apparatus transmits a second broadcast signal in the unicast resource. In another configuration, the apparatus, which is a first wireless device, receives a first broadcast signal from a second wireless device including information indicating an intention to use a unicast resource for a broadcast. In addition, the apparatus receives a first scheduling signal from the second wireless device in a scheduling resource. The first scheduling signal is for indicating a second intention to use the unicast resource for transmitting a second broadcast signal. Furthermore, the apparatus refrains from transmitting a second scheduling signal in the scheduling resource in response to the first scheduling signal.01-10-2013
20110305226RESOURCE REMAPPING AND REGROUPING IN A WIRELESS COMMUNICATION SYSTEM - Methods and apparatus for remapping and regrouping transmission resources in a wireless communication system. First, a set of new permutation algorithms based on Galois field operation is proposed. Then the proposed algorithms and the known Pruned Bit Reversal Ordering (PBRO) algorithm are applied to several of various resource mapping schemes, including slot or symbol level Orthogonal Cover (OC)/Cyclic Shift (CS) mapping, cell-specific slot-level and symbol-level CS hopping patterns, and subframe and slot level base sequence hopping patterns.12-15-2011
20110305225WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION SYSTEM - There is provided a wireless communication device which transmits data to destination nodes by time division multiplexing. The device includes: a storage section including a transmission queue region that stores unsent data therein; a communication controller including: a communication situation evaluating section configured to evaluate a communication situation of each of the destination nodes; and a communication slot controller configure to: allocate, in the plurality of communication slots, communication slots for data transmission to the respective destination nodes, retransmission slots for retransmission of the unsent data, and auxiliary retransmission slots for retransmission of the unsent data subjected to a specified destination node, the specified destination node being determined based on the communication situation; and allocate the respective unsent data to a corresponding one of the retransmission slots and the auxiliary retransmission slots based on a given condition.12-15-2011
20110305224METHOD AND SYSTEM FOR ADAPTIVE DOWNLINK SIGNALING DETECTION USING DYNAMIC DOWNLINK SIGNALING POWER DISTRIBUTION PROFILES - A UE receives a downlink signaling signal in a current TTI over E-AGCH, E-RGCH or E-HICH. A downlink signaling power profile is established for the current TTI utilizing noise variance estimates and downlink signaling power estimates for the current TTI and prior TTIs. Commands such as UP or HOLD in the received downlink signaling signal are determined based on the established downlink signaling power profile. Candidate detection threshold values may be initially selected based on a current noise variance estimate. Distribution statistics, over the selected candidate detection threshold values, of the downlink signaling power estimates in the current TTI and the prior TTIs are determined for establishing the downlink signaling power profile. A detection threshold value is determined based on the current noise variance estimate and a metric derived from the established downlink signaling power profile to determine the commands for managing uplink data transmissions in subsequent TTIs.12-15-2011
20110110341METHOD FOR TRANSMITTING AND RECEIVING BROADCASTING CHANNELS - A method for transmitting and receiving a broadcast channel is disclosed. A wireless access system, a method for effectively transmitting and receiving a broadcast channel, a variety of superframe structures, and a super frame header structure are disclosed. A method for effectively receiving a broadcast channel includes receiving, by a mobile station (MS), a first broadcast channel including first information about a modulation and coding scheme (MCS) applied to a second broadcast channel, and receiving the second broadcast channel using the first information. The first broadcast channel is transmitted using a fixed modulation and coding scheme (MCS) value, and the second broadcast channel is transmitted using a variable modulation and coding scheme (MCS) value.05-12-2011
20110110340Method and Apparatus for Directional Centralized Contention Based Period in a Wireless Communication System - A method of communication includes allocating a portion of a superframe centralized contention based period where the access method is based on directional ALOHA. The centralized contention based period is divided into equal time slots, and each sequential set of N time slots forms a time cycle. During a time cycle, a wireless device listens for requests from other wireless devices while it changes its receiving direction from one time slot to another.05-12-2011
20100157953CONTINUOUS PACKET CONNECTIVITY (CPC) SCHEDULER - A base station establishes a data channel in an uplink between the base station and a user equipment, establishes a control channel in the uplink between the base station and the user equipment, and determines a gating configuration associated with the control channel. The base station also transmits the gating configuration to the user equipment, receives a gated control signal, via the control channel, based on the gating configuration, and synchronizes time slots for signal bursts associated with the gated control signal and time slots for data packets associated with the data channel. The base station further schedules transmissions of the data packets based on the synchronized time slots, generates an absolute grant based on the scheduled transmissions of the data packets, and transmits the absolute grant to the user equipment.06-24-2010
20120039308METHOD AND APPARATUS FOR DATA COMMUNICATION WHILE BASE STATION IS DISRUPTED IN WIRELESS COMMUNICATION SYSTEM - A method provides data communication while a Base Station (BS) is disrupted in a wireless communication system. The method includes, when a plurality of Mobile Stations (MSs) receive a preamble signal from a cluster header through a dedicated control channel while the BS is disrupted, sending a message requesting cluster member subscription to the cluster header, in the cluster header, including the plurality of MSs in a cluster member, configuring a cluster member list, and broadcasting the cluster member list, in a source MS among the plurality of MSs, sending a data transmission request message to the cluster header using the broadcasted cluster member list, in the cluster header, one of unicasting and broadcasting a response message for the data transmission request of the source MS, and, in the source MS, transmitting data to a target MS among the plurality of MSs based on the response message.02-16-2012
20120039306RADIO COMMUNICATION SYSTEM, RADIO BASE STATION, AND RADIO COMMUNICATION METHOD - A mobile communication system comprises: a data amount measurement unit (02-16-2012
20120147860METHOD AND APPARATUS FOR EFFICIENT MULTIMEDIA DELIVERY IN A WIRELESS PACKET NETWORK - The present invention sends multiple versions of a multimedia packet to the base station, and, based on the radio channel and traffic characteristics, an appropriate version of the multimedia packet is selected to send to the mobile station at a given time. In this way, source transmission is improved to instantaneous conditions. The steps of the present invention are performed in conjunction with RTP used for multimedia transmission over internet protocol (IP) networks. In a first embodiment, the multiple versions are sent to the base station in the same RTP packet, and the base station strips out the extraneous versions. In a second embodiment, the base station receives multiple RTP packets having identical information in the packet header in many fields, and selects an appropriate one among these for transmission to the mobile station, discarding the rest.06-14-2012
20120147858METHOD FOR COMMUNICATION TRANSMISSION - A method for communication transmission includes the steps of: performing sub-frame transmission in accordance with a first communication standard and pausing sub-frame transmission in accordance with a second communication standard in a first communication period; performing a sub-frame uplink operation in accordance with the second communication standard and pausing a sub-frame uplink operation in accordance with the first communication standard in a second communication period; and performing a sub-frame downlink operation in accordance with the second communication standard and pausing a sub-frame downlink operation in accordance with the first communication standard in a third communication period. The transmission band of the first communication standard overlaps, at least partially, the transmission band of the second communication standard.06-14-2012
20090232108I/Q IMBALANCE ESTIMATION USING SYNCHRONIZATION SIGNALS IN LTE SYSTEMS - A method and apparatus perform I/Q imbalance estimation and compensation using synchronization signals in LTE systems. Primary and secondary synchronization signals (P-SCH and S-SCH), which carry synchronization information, are embedded in each LTE frame, and are used for receiver I/Q imbalance estimation. Additionally, the performance may be significantly improved by optimally selecting the training data in I/Q imbalance estimation.09-17-2009
20100103908METHOD AND APPARATUS FOR EFFICIENT SHARING OF COMMUNICATION SYSTEM RESOURCES - A method for accessing a reverse channel for communication from a remote unit to a base station is disclosed. The method includes waiting a random period of time in response to determining that the reverse channel is available at a first time. The method also includes monitoring a forward channel after expiration of the random period of time to determine whether the reverse channel is available at a second time. The method further includes transmitting a first portion of data on the reverse channel in response to determining that the reverse channel is available at the second time.04-29-2010
20110317670TD-LTE HETNET PARTITION - Downlink (DL) subframes and DL hybrid automatic repeat request (HARQ) messages may be protected by time division multiplexing (TDM) partitioning. However, TDM partitioning may not be required for uplink (UL) subframes in general. For example, information carried over a physical uplink control channel (PUCCH), may be protected by frequency division multiplexing (FDM) partitioning. In fact, one UL subframe may correspond to eNBs of multiple power classes. Since TDM partitioning may be required for DL transmissions, one DL sub frame may not correspond to the eNBs of multiple power classes. For some embodiments, groups of subframes may be allocated to the different power classes. Therefore, subframes allocated to an eNB of a power class may observe reduced or no interference from eNBs of other power classes.12-29-2011
20110317671MULTIPLE-ACCESS HYBRID OFDM-CDMA SYSTEM - In one aspect of a multiple-access OFDM-CDMA system, data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of the downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on.12-29-2011
20110158206METHOD AND SYSTEM FOR ALLOCATION GUARANTEED TIME SLOTS FOR EFFICIENT TRANSMISSION OF TIME-CRITICAL DATA IN IEEE 802.15.4 WIRELESS PERSONAL AREA NETWORKS - A guaranteed time slot allocation scheme is provided for the IEEE 802.15.4 standard for use in wireless personal area networks having sensor devices to overcome bandwidth under-utilization for time-critical or delay-sensitive data transmissions. A fractional knapsack problem is formulated to obtain optimal guaranteed time slot allocation with which a minimum bandwidth requirement is guaranteed for the sensor devices.06-30-2011
20110158205Method And Apparatus For Concerted Signal Transmission On Multiple Antennas - A communication method is provided for use in a network in which users are allocated respective symbol positions within timeslots for communication to the respective users from a base station. A signal periodically transmitted from at least two antennas of the base station to a user terminal represents coded information. The signal is transmitted within each of a plurality of periodic timeslots. Within each timeslot, each antenna transmits the same coded information only during an assigned symbol position. The symbol positions assigned to the respective antennas are separated in time according to a specified sequential spacing of symbol positions within the timeslot.06-30-2011
20120002644COORDINATED INTEGRATION OF SECONDARY WIRELESS COMMUNICATION TERMINALS INTO A PRIMARY WIRELESS COMMUNICATION NETWORK - A communication method for a mobile communication system is described. Available radio resources, i.e. an available frequency band, are divided into a plurality of comparatively small radio resource units. The mobile communication system uses a first communication protocol for communicating with mobile stations compatible with the mobile communication system. For communicating with an autonomous terminal at least one radio resource unit is allocated, in which a second communication protocol incompatible with the first communication protocol is used for communicating with the terminal.01-05-2012
20120002645RADIO TRANSMISSION APPARATUS AND RADIO TRANSMISSION METHOD - A radio transmission apparatus and a radio transmission method for readily controlling retransmission timing presets a frame cycle for retransmission, and transmits only packets for which no acknowledgement of receipt has been received within the frame cycle as a reply from a receiving apparatus to a transmitting apparatus. Thus, timing for retransmission can be readily determined. Also, the retransmission timing is determined based on when a packet is actually transmitted. Therefore, the multiple acknowledgement of receipt can be returned as a combined reply.01-05-2012
20100067497METHOD FOR MAINTAINING SYNCHRONISATION IN A RADIO COMMUNICATIONS SYSTEM - A method for maintaining synchronization of a user terminal (UE) in a radio communication system is proposed, wherein resources reserved for transmissions of random access signals are divided into at least one first portion for contention-based communication, and at least one second portion of said resources for contention-free communication, and wherein a user terminal (UE) is assigned at least one resource of the portion assigned to the contention-free communication, for transmitting signals for maintaining synchronization.03-18-2010
20080298325Method and Protocol for Handling Access Attemptsfor Communications Systems - An improved access attempt procedure for call establishment is achieved by deriving a probability of access transmission as a function of both a priority level for access attempts and a random access cause, and performing link establishment authentication and security control call establishment based upon the deriving.12-04-2008
20120044913Methods And Apparatus For Providing Communications With Use Of First And Second RF Transceiver Modules - A mobile communication device is operative to perform a first communication function (e.g. inquiry or paging function for discovery) with use of a first radio frequency (RF) transceiver (e.g. BLUETOOTH transceiver) and a second communication function (e.g. voice telephony function) with use of a second RF transceiver (e.g. IEEE 802.11 transceiver). In response to identifying an indication to invoke the first communication function while the second communication function is being performed, the mobile device reserves selected timeslots of a wireless communication link with the first RF transceiver for establishing a synchronous link. The mobile device then causes data of the first communication function to be communicated, via the first RF transceiver, during remaining unreserved timeslots of the wireless communication link. The mobile device further causes data of the second communication function to be communicated, via the second RF transceiver, during the reserved timeslots of the synchronous link.02-23-2012
20110064061BASE STATION, TERMINAL AND WIRELESS COMMUNICATION SYSTEM - Conventionally, different HARQ processes 03-17-2011
20120207138Wireless Control Of Power Network Switching Devices - A method for controlling a plurality of power converters connected to a power supply network is described. Each power converter includes high-power semiconductor devices. Control signals are sent between a controller and a wireless node of one or more of said plurality of power converters using a wireless communication system. The control signals are transmitted to a local wireless node of one or more of a plurality of power converters. The data transmissions include data packets including control information such that a clock of the local wireless node can be synchronized using time synchronization information of the wireless communication system. In other aspects of the invention a system employing the method and a computer program for carrying out the method are described.08-16-2012
20120008602Terminal Access Method and Terminal - The present invention discloses a terminal access method and a terminal, wherein the method comprises: calculating a length of an access message body of an access message (01-12-2012
20120008601Apparatus and Method for Scheduling in a Wireless Communication System - A method of scheduling an uplink (UL) data packet on a packet data network (PDN) connection of at least one radio bearer by a wireless communication unit comprises receiving, by the wireless communication unit, a signalling message comprising at least one scheduling priority parameter assigned to at least one uplink radio bearer, wherein the at least one scheduling priority parameter is based on at least one characteristic of the PDN connection that the radio bearer belongs to. The method further comprises determining, from the at least one scheduling priority parameter, at least one user transmission priority level associated with at least one PDN connection of at least one radio bearer; and scheduling at least one uplink data packet transmission in response to the at least one user transmission priority level.01-12-2012
20120008600MAINTAINING TIME ALIGNMENT WITH MULTIPLE UPLINK CARRIERS - Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.01-12-2012
20120008599Reservation response and multi-user transmissions - In one embodiment, in absence of transmitting from an apparatus a reservation request frame, the apparatus receives a reservation response frame on an assigned channel. The reservation response frame indicates a duration of a frame transmission. In response to receiving the reservation response frame, the apparatus transmits a frame on the assigned channel during the frame transmission. In another embodiment, in response to receiving a reservation request frame on a first channel at an apparatus, the apparatus transmits a reservation response frame on the first channel and on at least one second channel. The reservation request frame indicates a duration of a frame transmission. The reservation response frame indicates the duration of the frame transmission. After transmitting the reservation response frame, this apparatus receives during the frame transmission a first frame on the primary channel and a second frame on the at least one secondary channel.01-12-2012
20120057570USING A SINGLE LOGICAL BASE TRANSCEIVER TO SERVE MULTIPLE PHYSICAL LOCATIONS - Using a single logical base transceiver to serve multiple physical locations is disclosed. A call traffic associated with a call associated at a mobile network with an assigned timeslot of a logical base transceiver is received. A timeslot with which the call traffic is associated is remapped from the assigned timeslot to a serving timeslot being used at a serving physical base transceiver to facilitate the call, in the event the call traffic comprises inbound call traffic being sent into the mobile network from the serving physical base transceiver, or from the serving timeslot to the assigned timeslot in the event the call traffic comprises outbound call traffic being sent from the mobile network to the serving physical base transceiver.03-08-2012
20120014358METHOD, SYSTEM AND DEVICE FOR DETERMINING BANDWIDTH OF UPLINK SOUNDING REFERENCE SIGNAL - The present invention discloses a method, system and device for determining a bandwidth of an uplink sounding reference signal SRS. The method for determining the bandwidth of the uplink SRS comprises the following steps: determining whether SRS is transmitted with the uplink pilot time slot if the SRS is transmitted with the largest bandwidth level; transmitting SRS with the non-extensive SRS bandwidth if SRS is determined to be transmitted with the uplink pilot time slot and the UE reaches the power limit. In the present invention, the signal-to-noise ratio detected on the bandwidth with which SRS transmitted can be maintained, and the accurate detection of the channel information is thereby realized.01-19-2012
20090316664Method for Synchronizing PDCP Operations after RRC Connection Re-establishment in a Wireless Communication System and Related Apparatus Thereof - A method used in an E-UTRAN for synchronizing PDCP operations after a RRC connection re-establishment procedure with a user equipment (UE) is provided. The method includes: initiating an RRC reconfiguration procedure to resume all radio bearers other than a signaling radio bearer 12-24-2009
20120113962Method of Multiplexing and Transmission of Uplink Control Information and Related Communication Device - A method of handling an acknowledgement/negative acknowledgement (ACK/NACK) transmission for a mobile device with a carrier aggregation (CA) in a wireless communication system is disclosed. The method comprises receiving a configuration or an activation of the CA with at least one uplink (UL) component carrier and a plurality downlink (DL) component carriers from a network of the wireless communication system, and performing a simultaneous transmission of a scheduling request (SR) and the ACK/NACK, which corresponds to DL transmissions on the plurality of DL component carriers, with at least one PUCCH resource or on at least one PUCCH resource in a subframe according to one of a plurality of ACK/NACK transmission schemes configured or supported by the network.05-10-2012
20120020336Method For Data Transmission In A Local Area Network - A method for data transmission in a local area network, wherein data is transmitted on a medium access control layer within successive time frames between a plurality of first nodes comprising client nodes and a second node within reach of the first nodes, and a coordinator node for the first nodes where a time frame comprises a plurality of time slots. Each time slot is assigned to a first node that is a slot owner node being exclusively allowed to start transmitting data at a time within a first interval at the beginning of the time slot. At least one first nodes of the plurality of first nodes is allowed to use the time slot based on a contention based access to transmit the data in a second interval succeeding the first interval where the slot owner node has not started transmitting data at a time within the first interval.01-26-2012
20120020335METHOD AND APPARATUS FOR CELL DETECTION IN A WIRELESS COMMUNICATION SYSTEM01-26-2012
20120020337SCHEDULING METHOD - In a cellular radio system, the number of TDM users per cell is limited. The cellular radio system can be a WCDMA system and in particular a WCDMA system employing an Enhanced Uplink (EUL). Other users in the cell are scheduled using CDM scheduling.01-26-2012
20090310572MAC layer timestamping approach for emerging wireless sensor platform and communication architecture - In the receiving side MAC layer timestamping approach, the MPDU structure is changed by adding an extra timestamping field. When a MPDU packet is generated, a captured receiving timestamp is written into the MPDU's timestamp field. The MPDU packet is then forwarded from the PHY to the MAC layer of the wireless sensor node. In the MAC layer, the receiving timestamp is further processed and inserted into a corresponding field of the time synchronization message, which is in turn transmitted to a Time Synchronization module. In the sending side MAC layer timestamping approach, the sending timestamp is captured immediately before the time synchronization message is written into TxFIFO.12-17-2009
20100111048METHOD FOR ALLOCATING A BEACON SLOT USING A BEACON TABLE IN WIRELESS PERSONAL AREA NETWORK (WPAN) AND WPAN DEVICE - The present invention relates to a method in which each device sets its own beacon slot by using beacon slot information of its neighbors and its neighbors' neighbors in a WPAN. In the method, beacon slot information of the neighbors and the neighbors' neighbors is received from neighbor devices. The beacon slots of the neighbors and the neighbors' neighbors are decided as beacon slots to avoid. The beacon slot of the WPAN device of the present invention is set among beacon slots of the beacon-only period, except for the beacon slots decided as beacon slots to avoid.05-06-2010
20100142493WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION METHOD AND COMPUTER PROGRAM - The present invention eliminates a transmission-waiting operation which is unnecessary while accommodating a prioritized traffic. Although a communication station enters a transmission-disallowed state in response to detection of a signal addressed to another station in accordance with medium access control based on CSMA, if the communication station receives a frame transmitted with priority to a local station during the transmission waiting, it cancels the transmission-disallowed state, sends back a frame responding the frame transmitted with priority and effectively operates a transmission prioritized period. The communication station starts a search procedure to perform a processing of evading duplication of the transmission prioritized periods if it judges a possibility of a problem occurring in a time zone in which reception with priority is possible.06-10-2010
20120026987METHODS AND APPARATUSES FOR TRANSMITTING AN ALLOCATION OF TIME IN A WIRELESS SYSTEM - Various methods and apparatuses for transmitting an allocation of time in a wireless communication system are disclosed. In one aspect, an allocation of time for receiving communications via a receive beam direction is transmitted. The allocation of time may be based on information regarding an apparatus known to be located in the receive beam direction. A unique time for receiving communications from each known apparatus may be allocated, or a duration of time for receiving communications from the known apparatuses may vary based on a number of apparatuses known to located in a receive beam direction.02-02-2012
20120026985Method and Apparatus for Grant Loss Detection and Related Processing in a Wireless Communication Network - The present invention provides a method and apparatus for improving wireless communication network performance and efficiency, based on detecting the occurrence of grant loss in relation to the transmission of scheduling grants to mobile terminals over a downlink control channel. Grant loss detection is based on detecting erasure events corresponding to the transmitted scheduling grants, and the incidence of grant loss with respect to a given mobile terminal can be tracked and used to compensate the control value(s) used for link adaptation of the downlink control channel, with respect to that terminal. Additionally, or alternatively, when a given grant is determined to be lost, a new grant is sent and the HARQ redundancy version is reset for the newly scheduled transmission.02-02-2012
20120155438METHOD OF REORDERING AND REASSEMBLING PACKET DATA IN RADIO LINK CONTROL LAYER - A method includes recognizing, by an RLC entity of a reception side, a transmission time interval (TTI) start time, initializing a count of the number of PDUs processed in a TTI, determining whether the reordering timer has expired, performing a procedure of reassembling RLC service data units (SDUs) and transmitting the reassembled RLC SDUs to an upper layer and updating the reordering timer when the reordering timer has expired, performing the procedure and updating the reordering timer when an RLC PDU received from a lower layer is an RLC PDU which should be received by retransmission of a transmission side before reordering timer expiration, and processing RLC SDUs received from the upper layer, wherein the procedure limits the number of RLC PDUs to be processed within a TTI using the count of the number of PDUs to be processed within the TTI.06-21-2012
20120155440METHOD, APPARATUS AND SYSTEM FOR SCHEDULING SERVICE ON MICROWAVE LINK - The embodiments of the present invention relate to the field of microwave communication technologies, and disclose a method, an apparatus, and a system for scheduling a service on a microwave link. In order to overcome the problem that the data unit of the TDM service and the data unit of the packet service cannot be scheduled uniformly in the prior art, the method for scheduling a service on a microwave link provided in the embodiments of the present invention includes: receiving a radio transport unit that carries at least one radio data unit, where the radio data unit carries priority information; and scheduling the radio data unit according to the priority information of the radio data unit. The present invention enables uniform scheduling of the data unit of the TDM service and the data unit of the packet service.06-21-2012
20120026988Wireless Communication Sharing in a Common Communication Medium Based on Voice Traffic Prediction - Performing wireless communication using first and second wireless communication protocols. The first and second wireless communication protocols may operate in a common communication medium. The wireless communication may be performed using the protocols over the common communication medium, e.g., in a time sharing fashion. Properties of voice traffic on current frames of the second wireless communication protocol may be measured. The method may further include predicting whether one or more subsequent frames of the second wireless communication protocol will have voice traffic. If the prediction indicates that the one or more subsequent frames of the second wireless communication protocol will not have voice traffic data may be transmitted using the first wireless communication protocol on the common communication medium during a subsequent second wireless communication protocol time slot.02-02-2012
20120026989METHOD AND APPARATUS FOR THE USE OF MULTIPLE-INPUT, MUTLIPLE OUTPUT (MIMO) SYSTEMS FOR MULTI-PACKET RECEPTION (MPR) IN A DISTRIBUTED TIME SLOT ASSIGNMENT PROTOCOL - A method of multiple packet reception (MPR) using distributed time slot assignment (TDSA) in a multi-user network where receivers can detect two packets at the same time includes the steps of requesting information on slot assignment in a contention area, setting a frame length and acquiring a the slot assignment, selecting the assigned slot, and announcing and confirming information about the frame length and the assigned slot. The step of requesting information on slot assignment, setting a frame length and acquiring a slot assignment, and selecting the assigned slot are performed in a network where receivers can detect two packets at the same time, where time slots are assigned to nodes instead of links, where one-hop neighbors are assigned to different time slots since they may form a link together, while sharing one time slot with one of the two-hop neighbors in a non-interfering assignment.02-02-2012
20120026986Downlink frequency selective scheduling based on channel quality feedback - A method for downlink frequency selective scheduling in LTE MAC based on channel quality feedback is disclosed. Existing methods for resource allocation have no means for efficient utilization of the resources and allocation of the available downlink bandwidth to the UE with low computation overhead. These methods do not ensure that the UEs that possess channel quality feedbacks are allocated their best sub-bands for transmission in time and compute efficient manner. The proposed method employs CQI based feedback from the UEs for allocation of the downlink bandwidth. The method defines a threshold value for the CQI and UEs that have sub-bands with CQI lesser than the defined threshold value will not be allocated resources in the corresponding sub-band.02-02-2012
20120063426METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN RADIO COMMUNICATION SYSTEM - Disclosed is a method for transmitting a sounding reference signal from a terminal to a base station in a radio communication system. More specifically, the method comprises the steps of: receiving a transmission instruction signal for transmitting a non-periodic sounding reference signal from a base station; determining a time resource for transmitting said non-periodic sounding reference signal based on a specific subframe for transmitting the preset periodic sounding reference signal; and transmitting said non-periodic sounding reference signal to the base station using said determined time resource.03-15-2012
20120063425Method and Apparatus for Uplink Synchronization Control - The present invention discloses a method for uplink synchronization control, wherein network side and a user equipment (UE) maintain a timing alignment timer (TAT) for the UE, and maintain an uplink transmission timing adjustment amount for uplink component carriers, and the method includes following steps: the network side measuring uplink component carriers of the UE, and obtaining an uplink transmission TA amount of the uplink component carriers; and before the TAT expires, the network side transmitting to the UE an adjustment command comprising information of the uplink transmission TA amount for at least one of the uplink component carriers of the UE. Also disclosed in the embodiments of the present invention are a method for uplink synchronization control at the UE side, and a base station and a UE for implementing the above methods. The solution of the present invention enables accurate adjustment of the uplink synchronization for each component carrier in a carrier aggregation mechanism.03-15-2012
20120063424DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN DIGITAL BROADCASTING SYSTEM - A digital broadcast receiver and a control method thereof are disclosed. The control method of the digital broadcast receiver includes receiving a broadcast signal into which mobile service data and main service data are multiplexed, extracting TPC signaling information and FIC signaling information from a data group in the received mobile service data, acquiring a program table defining a mapping relation between each of all ensembles transmitted at a physical frequency and at least one virtual channel corresponding to the ensemble, using the extracted FIC signaling information, and detecting IP address information required for channel tuning to the at least one virtual channel corresponding to the ensemble, using the acquired program table.03-15-2012
20110090876REDUCED TRANMISSION TIME INTERVAL - A method is suggested for communicating to a mobile station which timeslots are configured as packet data channel pairs and on which of these packet data channel pairs the mobile station is assigned resources, wherein a description of packet data channel pairs is separated into “configuration” and an “assignment”.04-21-2011
20090135790INTERFACE MANAGEMENT IN WIRELESS COMMUNICATION SYSTEM USING HYBRID TIME REUSE - Interference that occurs during wireless communication may be managed by hybrid time reuse. A method, apparatus amend medium of communication determines one or more time reuse patterns of respective one or more unplanned access points. A second time reuse pattern that is less interfering with the one or more time reuse patterns is selected. Signals are transmitted according to the second time reuse pattern from a second unplanned access point to an associated access terminal.05-28-2009
20100238909APPARATUS AND METHOD FOR ALLOCATING RADIO NETWORK TEMPORARY IDENTIFIER FOR RANDOM ACCESS IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for allocating Radio Network Temporary Identifiers (RNTIs) for random access in a mobile communication system are provided. An Evolved Node B (ENB) determines the number of RNTIs allocated to at least one User Equipment (UE) that transmitted a random access preamble, determines an average number of random access preambles received during a Transmission Time Interval (TTI), and sets a timer based on the number of allocated RNTIs and the average number of random access preambles. If a cell identifier corresponding to a first UE is not received from an upper layer before expiration of the timer, the ENB releases the RNTI allocated to the first UE, and allocates the released RNTI to a second UE different from the first UE.09-23-2010
20120155436SR/RACH Transmission Strategy For Half-Duplex UEs In LTE - A method of avoiding collision between uplink and downlink data of a user equipment includes verifying existence of data in an uplink buffer, determining a time instant for transmission of the uplink data, determining a likelihood for reception of downlink data at the determined time instant and selectively transmitting the uplink data based on the likelihood of reception wherein the user equipment is a half duplex (HD) equipment.06-21-2012
20120300755Process for Slot Synchronization of the P-SCH Sequence in a UMTS Communication System and a Receiver for the Same - A Process for achieving slot synchronization of the P-SCH sequence in a UMTS communication system, involving the step of receiving (11-29-2012
20120300754Scheduling of Up-Link Transmissions of a Wireless Communication System - A method is disclosed of scheduling up-link transmissions for a number of terminals of a wireless communication system into a number of groups, wherein each group comprises terminals intended for simultaneous up-link transmission during a respective period of time. A subset metric may be calculated for each of a number of subsets of terminals based on transmissions received from the terminals of the subset. The subset metric is indicative of a simultaneous transmission suitability measure for the terminals of the subset. The subsets may be processed in subset metric order, starting with the subset having a subset metric indicating a least suitability metrics for of simultaneous transmission. During the processing, each terminal of the subset that is not already scheduled in a group may be scheduled in a group that does not already comprise another terminal of the subset. Information indicative of the period of time during which a scheduled terminal is intended to transmit may be transmitted to each of the scheduled terminals. Corresponding computer program product, scheduler and arrangement are also disclosed.11-29-2012
20120300753Dynamic Real-Time Tiered Client Access - Wireless client devices within a wireless network exchange data with other wireless devices during particular time slots determined by the network. More particularly, the system generates and wirelessly broadcasts synchronization information to the client devices, where the synchronization information contains individual masks to be applied to bit fields of individual client devices, where said time slots are determined in accordance with the masked bit fields. In such a manner, client devices can be coordinated to communicate with the system in a dynamic real-time tiered manner.11-29-2012
20110075636RANDOM ACCESS WITH FULL COVERAGE ON SELECTED RESOURCES - Random access coverage is assured while at the same time supporting high uplink data rates in a same service area served by a base station. A set of radio resources are shared by multiple mobile terminals for transmitting uplink to the base station including requests for access to service from the base station and transmissions for active connections with the base station. A first repeating time period and a second different repeating time period are defined. Uplink transmission grants are scheduled for active connections that permit use of a greater amount of the radio resources during the first repeating time period. Uplink transmission grants are also scheduled for active connections that permit use of a smaller amount of those resources during the second repeating time period. At least some random access requests to the base station are controlled to occur only during the second repeating time period.03-31-2011
20100172330METHOD FOR SIGNAL TRANSMISSION IN WIRELESS SYSTEMS - Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly use time and frequency resources for efficient code hopping. The method includes allocating the same frequency-axis sequence and different time-axis sequences to a plurality of terminals by using a resource index according to a first slot in the first slot; and allocating different frequency-axis sequences and different time-axis sequences to the plurality of terminals by using a resource index according to a second slot in the second slot.07-08-2010
20110103352DETERMINISTIC BACKOFF WITH DYNAMIC ADAPTATION - Certain aspects provide techniques for conveying transmit opportunity (TXOP) scheduling information that can be used by a plurality of wireless nodes to determine TXOPs for sending transmissions.05-05-2011
20100091742CORRELATION METHOD AND APPARATUS FOR ACQUIRING SYNCHRONIZATION IN WIRELESS LOCAL AREA NETWORK - Provides is a correlation method for acquiring a synchronization in a wireless local area network (WLAN). In the correlation method, an auto-correlation value is measured in a receive (RX) signal based on the WLAN standard by use of a successive partial short preambles. A time point when the auto-correlation value becomes smaller than a predetermined threshold value is detected. A cross-correlation value for the successive partial short preambles is measured from the time point when the auto-correlation value becomes smaller than the predetermined threshold value. A time point when the cross-correlation value becomes maximum is determined as a reference time point for synchronization acquisition.04-15-2010
20100091741WiFi system and method with high-speed mobile voice and video data communication - A WiFi system with high-speed mobile voice and video data communication includes a plurality of mobile devices and a WiFi base station connected to a WiFi network. The WiFi base station transmits and receives packets to/from a mobile device within a time frame. The time frame is repeated at a predetermined period of time and divided into a plurality of variable-size time slots, each slot being assigned to a mobile device. The WiFi base station is based on an IEEE 802.11 standard to transmit/receive the packets respectively. Accordingly, all the WiFi base stations can use a single channel such that the handover between the WiFi base stations can be performed at high speed.04-15-2010
20120120927INTRODUCING A DELAY IN THE TRANSMISSION OF A NACK FOR A PACKET RECEIVED EMPLOYING COORDINATED MULTI-POINT TRANSMISSION - A communication method in a first apparatus, in which the first apparatus receives data via a direct route from a second apparatus and transmits in response an acknowledgement signal, wherein if the same data has also been transmitted via an indirect route and the data is not properly received via the direct route, the first apparatus introduces an indirect-route delay in transmitting the acknowledgement signal to allow receipt of the data via the indirect route, and otherwise no indirect-route delay is introduced.05-17-2012
20120120926Multiple Uplink Control Channel Transmission with Reduced Cubic Metric - It is determined that there are X uplink control channel resources available for uplink signaling. Each of those X uplink control channel resources are sub-channelized into a plurality of sub-channels that each defines a unique time instant or point in time. For each of Y units of control information there is selected a unique combination of one of the sub-channels and a modulation (X and Y are each integers greater than one). The Y units of control information are sent on the X uplink control channel resources according to the respectively selected combinations. By example the uplink resources may be an ACK/NAK/DTX bit on a of one of the sub-channels and a modulation PUCCH. In one example the sub-channels are individual slots of a PUCCH. In another example the sub-channels are the reference-signal part and the data part of a single PUCCH slot.05-17-2012
20120120925METHOD AND APPARATUS FOR ANTENNA DIVERSITY IN MULTI-INPUT MULTI-OUTPUT COMMUNICATION SYSTEMS - Transmission schemes that can flexibly achieve the desired spatial multiplexing order, spatial diversity order, and channel estimation overhead order are described. For data transmission, the assigned subcarriers and spatial multiplexing order (M) for a receiver are determined, where M≧1. For each assigned subcarrier, M virtual antennas are selected from among V virtual antennas formed with V columns of an orthonormal matrix, where V≧M. V may be selected to achieve the desired spatial diversity order and channel estimation overhead order. Output symbols are mapped to the M virtual antennas selected for each assigned subcarrier by applying the orthonormal matrix. Pilot symbols are also mapped to the V virtual antennas. The mapped symbols are provided for transmission from T transmit antennas, where T≧V. Transmission symbols are generated for the mapped symbols, e.g, based on OFDM or SC-FDMA. Different cyclic delays may be applied for the T transmit antennas to improve diversity.05-17-2012
20120120924SYSTEM, APPARATUS AND METHOD FOR DOWNLINK AND UPLINK GRANT DESIGN IN WIRELESS COMMUNICATION SYSTEMS - In accordance with aspects of the disclosure, a method, apparatus, and computer program product are provided for wireless communication. The method, apparatus, and computer program product may be configured to provide at least one control channel for downlink grant information, provide at least one other control channel for uplink grant information, and adjust time apportioned for the downlink and uplink grant information in the control channels.05-17-2012
20100290439METHOD AND DEVICE FOR SENDING INFORMATION IN A PHYSICAL UPLINK CONTROL CHANNEL - The present invention discloses a method and device for sending a message in a physical uplink control channel. The present invention overcomes the problem that an index of the physical uplink control channel corresponding to a ACK/NACK message can not be represented implicitly in prior art by using the known downlink information, which includes an index of the control channel element where control signaling associated with downlink data is located and an index of a sub-frame where the downlink data is located. Therefore, the index of the physical uplink control channel where the ACK/NACK message associated with the downlink data is located can be represented and the ACK/NACK message can be sent in an appropriate physical uplink control channel.11-18-2010
20120120928USER EQUIPMENT FOR PHYSICAL LAYER AUTOMATIC REPEAT REQUEST - A user equipment for physical layer automatic repeat request is disclosed. The user equipment comprises a higher layer automatic repeat request (ARQ) mechanism, a physical layer transmitter, a physical layer receiver, an acknowledgment (ACK) transmitter and an adaptive modulation and control unit (AMC). A higher layer ARQ mechanism generates data for transmission. A physical layer transmitter receives the data for transmission from the higher layer ARQ mechanism, to format the received data into packets for transmission. A physical layer receiver receives and demodulates received packets and retransmission statistics. An ACK transmitter transmits a corresponding acknowledgment for a given packet at the physical layer receiver. An AMC unit adjusts a particular encoding/data modulation of each packet using collected retransmission statistics.05-17-2012
20120163347APPARATUS AND METHOD FOR ALLOCATING SYNCHRONOUS TIME SLOT FOR LOW-POWER WIRELESS PERSONAL AREA NETWORK - Provided is an apparatus and method for allocating a synchronous time slot of a low-power wireless personal area network (WPAN) that allocates and controls a time slot based on synchronization in the low-power WPAN. A method of allocating a time slot by a communication node may minimize energy consumption and processing load associated with a message exchange since access to and release from a network may be possible without exchanging a message for controlling access between a coordinator and a device, may access a device in motion within a coordinator region by minimizing accessing time, and may enhance utilization of a time slot by optimally distributing links for accessing devices to available time slots uniformly using information of device global IDs.06-28-2012
20100246538ADAPTIVE FREQUENCY REUSE METHOD OF RADIO RESOURCES MANAGEMENT AND ALLOCATION - A method for managing and allocating radio resources (RRMA method) of multiple radio resource types to subscriber stations is disclosed. The RRMA method includes bandwidth partitioning, into parts comprising “slots” with a given reuse pattern, a selection rule, to select a “cell, reuse pattern” pair serving each user, and an allocation rule, for distributing to each user an appropriate number of bandwidth slots from the selected “cell, reuse pattern” pair. After an adaptation period, the method reaches a desired fairness, while simultaneously reaching a maximal mean throughput, possible under this fairness. For big networks, the method provides basically decentralized radio resource management. The RRMA method is useful to cellular networks having a single set of orthogonal sub-channels (frequency/time slots) being reused by all network cells, such as time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), or OFDMA/TDMA cellular systems. Particularly, the method is applicable in fractional frequency reuse cellular networks.09-30-2010
20100246540Method for Channel Switching and Device for Communication - A method for channel switching comprising the steps: establishing (09-30-2010
20100246537SYSTEM AND METHOD FOR WIRELESS COMMUNICATION OF UNCOMPRESSED VIDEO HAVING A DUAL-BEACON MECHANISM FOR TWO DEVICE TYPES - A system and method of wireless data communication over a network of devices and device types are disclosed. In one aspect, the beacons of a first device type are sent and received from devices of the first device type or a second device type, by a first device of the first device type. A plurality of beacons of the first device type or the second device type are sent or received from a plurality of devices of the first device type or a second device type, by a second device of the second device type. Each of channels by the first device is sensed. A free channel for data communication between the first device and the second device is located. Beacons of the first device type are sent out by the first device. Channel reservations of time blocks are made of the free channel for data transmissions.09-30-2010
20100246539Transmission method for a wireless network and corresponding reception method - The invention relates to a method for transmitting in a wireless network comprising a plurality of base stations, that transmit frames at a same frequency, and at least one mobile terminal. In order to optimise the size of a frame header, the method comprises: 09-30-2010
20120127964Method and Apparatus for Timing Advance Estimation - In accordance with an example embodiment of the present invention, an apparatus, comprising at least one processor; and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following: determine a first timing associated with a first signal; detect a second timing associated with a second signal; and estimate a timing advance value based at least in part on the detected first timing and the second timing, is disclosed.05-24-2012
20120127965HYBRID COORDINATION FUNCTION (HCF) ACCESS THROUGH TIERED CONTENTION AND OVERLAPPED WIRELESS CELL MITIGATION - A method and system reduce interference between overlapping first and second wireless LAN cells in a medium. Each cell includes a respective plurality of member stations and there is at least one overlapped station occupying both cells. An inter-cell contention-free period value is assigned to a first access point station in the first cell, associated with an accessing order in the medium for member stations in the first and second cells. The access point transmits a beacon packet containing the inter-cell contention-free period value, which is intercepted at the overlapped station. The overlapped station forwards the inter-cell contention-free period value to member stations in the second cell. A second access point in the second cell can then delay transmissions by member stations in the second cell until after the inter-cell contention-free period expires.05-24-2012
20120127970Wireless Network System And Method Configured To Mitigate Co-channel Interference - One embodiment provides a wireless network system (05-24-2012
20120127969SEMI-RANDOM BACK-OFF METHOD FOR ACHIEVING RESOURCE RESERVATION IN WIRELESS LOCAL AREA NETWORKS - A method and apparatus are described including determining if a successful unicast transmission has occurred, adjusting a contention window to a minimum value and adjusting a time slot back-off counter to one-half of the value of the contention window plus one responsive to the determination and adjusting the contention window using one of a plurality of adjustment schemes and selecting said time slot back-off counter from an interval between zero and the contention window.05-24-2012
20120127968UPLINK POWER CONTROL USING RECEIVED REFERENCE SIGNAL - A user equipment (UE) includes circuitry configured to receive control information on a downlink control channel from a base station. The control information indicates an allocation of an uplink channel and the control information is sent in response to the base station determining that the UE is to send an adaptive modulation and coding report. The circuitry is further configured in response to the control information to transmit a communication in the allocated uplink channel in a time interval including at least one time slot. The communication includes an adaptive modulation and coding report, and a transmission power level of the communication is derived from the control information and a pathloss measured by the UE.05-24-2012
20120127967PROTOCOL FOR ALLOCATING UPSTREAM SLOTS OVER A LINK IN A POINT-TO-MULTIPOINT COMMUNICATION SYSTEM - A system for controlling a contention state for a communication link between a base station controller and customer premises equipment in point-to-multipoint communication. The contention state is controlled using a state machine, which includes a grant pending absent state in which a unicast request slot is maintained open for use by the customer premises equipment. During the grant pending absent state, the customer premises equipment sends no upstream data to the base station controller but can use the unicast request slot to request a data slot for sending upstream data to the base station controller. In the grant pending state, the customer premises equipment preferably uses piggybacking to request grant of a next data slot while sending upstream data to the base station controller.05-24-2012
20120127966METHOD OF DYNAMICALLY ADJUSTING TRANSMISSION CAPACITY OF A DATA TRANSMISSION CONNECTION - A method of dynamically adjusting a transmission capacity of a data transmission connection is proposed. The method comprises different steps at a network end node. An incoming frame-structured time division multiplex signal carrying incoming timeslots is received from a client. Furthermore, a request data set comprising for at least one incoming timeslot a corresponding subset is received. The subset has an identifier for identifying an existing data transmission connection and a status indicator for indicating to the network end node a status requested by the client for the corresponding timeslot. If the status indicator indicates a request for adding the timeslot to the data transmission connection or removing the timeslot from the data transmission connection, the network end node adjusts the transmission capacity of the data transmission connection. If the status indicator indicates valid data in the incoming timeslot, the network end node transmits the data of the incoming timeslot via the existing data transmission connection to a far-end network end node.05-24-2012
20120213209Extended USF Addressing Space - The present invention relates to assigning addresses to communication devices in a radio access network and notifying communication devices of scheduled uplink transmission time periods. Related methods, communication devices and control units are disclosed. A method of assigning an address to a communication device in a radio access network for use in notification of scheduled uplink transmission time periods for the communication device is provided. The method comprises assigning to the communication device an uplink state flag (USF) value. Furthermore, the method comprises assigning to the communication device an extended USF (eUSF) value. The address assigned to the communication device is a combination of the assigned USF value and the assigned eUSF value. By means of the eUSF value, the normal address range provided by the USF is extended, thereby facilitating use of more communication devices in the radio access network.08-23-2012
20120134342METHOD FOR COORDINATION OF WIRELESS TRANSCEIVERS OF A NETWORK NODE AND NETWORK NODE - A method for coordination of wireless transceivers of a network node, in particular for application in communication nodes of a vehicular network, wherein the network node is equipped with one or more wireless transceivers that are capable of simultaneously generating and/or receiving electromagnetic signals on different electromagnetic channels, the electromagnetic signals being potentially able to interfere with each other, is characterized in the steps of, for each pending packet transmission on a particular of the electromagnetic channels, checking the presence of ongoing and/or scheduled activity on one or more of the other of the electromagnetic channels, and deferring the pending packet transmission in case ongoing and/or scheduled activity is detected on one or more of the other of the electromagnetic channels, at least until the detected ongoing and/or scheduled activity on one or more of the other of the electromagnetic channels is completed. Furthermore, a corresponding network node is disclosed.05-31-2012
20120134344Scheduling In Radio Telecommunication System - A method, apparatus, and computer program is provided for controlling direct device-to-device communication between a first and at least a second terminal device on a shared communication channel also used for communication with a base station. The base station schedules the utilization of the shared communication channel to terminal devices communicating with the base station and terminal devices communicating directly with one another.05-31-2012
20120134343WIRELESS CHANNEL ALLOCATION IN A BASE STATION PROCESSOR - A system and method are provided for allocating wireless channels in a base station processor to messages sent between a subscriber and the base station processor in a wireless network. A latency period is determined corresponding to a return message to be received from a responsive node in response to an outgoing message sent from a sender via the base station processor. A latency manager in the base station processor computes the latency period and stores the latency period in an allocation table. A scheduler schedules a channel to be available at the end of the latency period indicated in the allocation table. At the end of the latency period, the return message is received and the scheduler allocates a channel as defined in the allocation table. The scheduled channel is used to transmit the message to or from the corresponding subscriber.05-31-2012
20120163349TRANSMISSION METHOD IMPLEMENTED BY A NODE AND CORRESPONDING RECEPTION METHOD - The invention relates to a transmission method implemented by a first node of a first set of nodes comprising at least two nodes, characterized in that the method comprises a transmission step, intended for at least one second node of the first set, of at least one item of quiet information representative of a prohibition to send during at least one allocated time slot to at least one second set of nodes. The invention also relates to the corresponding reception method.06-28-2012
20120163350METHOD FOR SCHEDULING DISTRIBUTED VIRTUAL RESOURCE BLOCKS - A method for transmitting downlink data using resource blocks at a base station in a wireless mobile communication system includes transmitting downlink data mapped to physical resource blocks (PRBs) to a user equipment, wherein indexes of virtual resource blocks (VRBs) are mapped to indexes of the PRBs for a first slot and a second slot of a subframe, and the indexes of the PRBs for the second slot are shifted with respect to the indexes of the PRBs for the first slot based on a predetermined gap, and wherein a predetermined offset is applied to an index of a PRB when the index of the PRB is equal to or greater than a predetermined threshold.06-28-2012
20090274126Mobile Station, Mobile Communication System, And Transmission Timing Control Method In Mobile Station - A mobile station, a mobile communication system comprising the mobile station and a base transceiver station, and a transmission timing control method in a mobile station, controlling a transmission timing of transmission data sent to the base transceiver station so as to cancel a difference between a first elapsed time comprising a difference between a transmission timing of first data transmitted from the base transceiver station (11-05-2009
20120170554BASE STATION DEVICE AND COMMUNICATION CONTROL METHOD FOR BASE STATION DEVICE - Provided is a base station device which communicates to/from a mobile station device supporting a MIMO scheme. A base station device (07-05-2012
20120213208METHOD AND SYSTEM FOR SHARED COMMUNICATION MEDIUM IN WIRELESS COMMUNICATION SYSTEMS - Performing distributed contention-free communication channel reservation for wireless communication, is disclosed. One implementation involves providing access to a shared communication channel in a wireless network including multiple wireless stations, by performing distributed channel time reservation for contention-free access to a shared wireless channel by each wireless station, based on a prior successful contention by the wireless station for access to the channel in a wireless network.08-23-2012
20120213207METHOD AND APPARATUS FOR DEACTIVATING SECONDARY CARRIERS IN MOBILE COMMUNICATION SYSTEM USING CARRIER AGGREGATION - A method and an apparatus for deactivating secondary carriers in a mobile communication system using carrier aggregation are provided. A communication method, for a User Equipment (UE), includes activating a secondary carrier, starting a first timer upon activation of the secondary carrier, starting a second timer when the first timer expires, and deactivating the activated secondary carrier when the second timer expires.08-23-2012
20120250663Method and Device for Performing HARQ in a Multiple Antenna System - Disclosed are a method and a device for performing HARQ in a multiple antenna system. A terminal transmits uplink data via a plurality of antennas and through a Physical Uplink Shared Channel (PUSCH), and receives an ACK/NACK (Acknowledgement/Non-Acknowledgement) signal indicating whether or not the uplink data has been received, the signal being received via the plurality of antennas and through a PHICH (Physical Hybrid-ARQ Indicator Channel) which corresponds to the PUSCH. A downlink resource to which the PHICH is mapped is determined on the basis of the index (I10-04-2012
20120250662METHOD AND APPARATUS TO AVOID HIGHER RANDOM ACCESS (RA) FAILURE RATE DUE TO A SOLUTION FOR IN-DEVICE COEXISTENCE INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus are disclosed to avoid higher random access (RA) failure rate. In one embodiment, the method comprises (i) equipping a UE on a serving cell with a first radio based on LIE or LIE-advanced radio technology and a second radio based on another radio technology, (ii) activating a TDM solution in the UE for the serving cell for avoiding in-device coexistence interference between the radio technologies, wherein the TDM solution defines one or more scheduling periods and unscheduled periods, (iii) initiating a RA procedure on the serving cell, (iv) transmitting a RA preamble for the initiated RA procedure from the serving cell, (v) receiving a corresponding RA response on the serving cell, and (vi) transmitting an Msg3, and starting a mac-ComentionResolutionTimer, wherein the UE may suspend the mac-ContentionResolutionTimer during an unscheduled period and resume the mac-ContentionResolutionTimer when entering a next scheduling period.10-04-2012
20120281684RADIO COMMUNICATION METHOD AND A BASE STATION AND USER TERMINAL THEREOF - A radio communication method in a radio communication system in which data signals for a first and second user are respectively transmitted using first and second subcarrier groups, and pilot signals for the first and second users are multiplexed using time-division multiplexing with the data signals for those users, including arranging a pilot signal of the first user at frequencies different from frequencies of a pilot signal of the second user and mapping subcarrier components of the pilot signals so that one of subcarrier components of higher frequencies corresponds to one of subcarrier components of lower frequencies, wherein the pilot signals are generated using a Zadoff-Chu sequence.11-08-2012
20120076115METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN RADIO COMMUNICATION SYSTEM - Disclosed is a method for transmitting a sounding reference signal from a terminal to a base station in a radio communication system to which carrier aggregation is applied. More specifically, the method comprises the steps of: receiving information on a plurality of uplink component carriers for transmitting periodic sounding reference signals from a base station; allocating different time resources for said periodic sounding reference signal transmitted via said plurality of uplink component carriers; and transmitting said periodic sounding reference signals to said base station using said uplink component carriers and said allocated different time resources.03-29-2012
20120076114WIRELESS COMMUNICATION APPARATUS, WIRELESS BASE STATION, AND ABNORMALITY RESTORATION METHOD - A wireless communication apparatus attachable to an information processing apparatus. The wireless communication apparatus includes a wireless communication interface configured to perform wireless communication. The wireless communication apparatus also includes a processor configured to input, on detecting an error in the wireless communication interface, a signal for recognizing a temporary interruption to the information processing apparatus, and to initialize the wireless communication interface.03-29-2012
20080205351Subcarrier Spacing Identification - A cellular communications system that utilizes OFDM in its radio interface is capable of utilizing either a first subcarrier spacing or a second subcarrier spacing. Which of these is presently in use is indicated by generating a first type of synchronization signal in response to the first subcarrier spacing presently being in use, and generating a second type of synchronization signal in response to the second subcarrier spacing presently being in use. Whichever of the first type of synchronization signal and the second type of synchronization signal was generated is transmitted. To distinguish between the first and second types of synchronization signals, a time domain representation of the second type of synchronization signal includes a plurality of instances of the first type of synchronization signal.08-28-2008
20120177013METHOD, APPARATUS AND SYSTEM FOR SCHEDULING IN A WIRELESS COMMUNICATION NETWORK - Devices, systems and methods to schedule a service period at a wireless network. A wireless network controller of the wireless network may set a start time of a service period. The start time is no less than a predefined time after transmitting by the wireless network controller an information element containing the service period scheduling information.07-12-2012
20100195630QUASI-ORTHOGONAL MULTIPLEXING FOR A MULTI-CARRIER COMMUNICATION SYSTEM - For quasi-orthogonal multiplexing in an OFDMA system, multiple (M) sets of traffic channels are defined for each base station. The traffic channels in each set are orthogonal to one another and may be pseudo-random with respect to the traffic channels in each of the other sets. The minimum number of sets of traffic channels (L) is used to support a given number of (U) terminals selected for data transmission, where M≧L≧1 and U≧1. Each terminal transmits data and pilot symbols on its traffic channel. A base station receives data transmissions from all terminals and may perform receiver spatial processing on received symbols with spatial filter matrices to obtain detected data symbols. The spatial filter matrix for each subband may be derived based on channel response estimates for all terminals transmitting on that subband.08-05-2010
20100195628APPARATUS AND METHOD FOR TIME-DIVISION MULTIPLEXING (TDM) FOR MULTIPLE SIGNAL OFDM SIGNAL FORMATS - Methods, systems and apparatus, including computer programs encoded on computer storage media, for operating time division multiplexing (TDM) on segments of MediaFLO superframes comprising: generating a MediaFLO OFDM waveform with at least one MediaFLO frame; allocating a MediaFLO local multiplex time segment in the at least one MediaFLO frame for non-MediaFLO data; and inserting the non-MediaFLO data into the MediaFLO local multiplex time segment. In one example, the non-MediaFLO data is a DVB-H table that is split into two time segments within the MediaFLO OFDM waveform. In another aspect, the apparatus and method for operating time division multiplexing (TDM) on alternate whole superframes of time comprising generating a MediaFLO OFDM waveform with a plurality of MediaFLO superframes; multiplexing the MediaFLO OFDM waveform with non-MediaFLO data over the plurality of MediaFLO superframes for whole superframe durations; and inserting MediaFLO data in at least one of the plurality of MediaFLO superframes.08-05-2010
20100195627REUSE OF RF RECEIVE CHAIN FOR HAND-IN ASSISTANCE - A radio frequency receive chain of an access point is reused for different functions. For example, the same RF receive chain may be used to receive on a downlink at certain points in time and on an uplink at other points in time. An RF receive chain that is used to derive synchronization from downlink signals received from a macro system also may be used to receive uplink signals from an access terminal to provide assistance for hand-in of the access terminal. Accelerated searching for hand-in may be provided through the use of a relatively small search window for hand-in of an access terminal to a small coverage access point. In some aspects, the search window may be defined based on the distance between access points or calibration of synchronization error between access points.08-05-2010
20100272078METHOD AND APPARATUS FOR GENERATING A RADIO LINK CONTROL PROTOCOL DATA UNIT FOR MULTI-CARRIER OPERATION - Techniques and apparatus for efficiently determining the radio link control (RLC) protocol data unit (PDU) size and flexible RLC PDU creation for multi carrier operation are disclosed. An example wireless transmit/receive unit (WTRU) calculates a maximum amount of data allowed to be transmitted for a current transmission time interval (TTI) for each of a plurality of carriers, and selects an RLC PDU data field size such that each RLC PDU to be multiplexed to a medium access control (MAC) PDU matches a minimum of the maximum amount of data calculated for the carriers. The maximum amount of data may, for example, be calculated based on an applicable current grant for each carrier for the current TTI. The RLC PDU may be generated for the later TTI on a condition that an amount of data in outstanding pre-generated RLC PDUs for a particular logical channel is less than or equal to 4N times the minimum of the maximum amount of data allowed to be transmitted by the applicable current grant for the carriers for the current TTI, where N is a number of activated carriers. The maximum amount of data may be calculated based on a remaining power on each carrier.10-28-2010
20100272076SIMPLIFIED BEACONING AND CHANNEL RESERVATION TECHNIQUES FOR SHORT RANGE WIRELESS NETWORKS - A system and method for wireless BANs and short-range wireless networks that support heterogeneous devices and applications are disclosed. In one example embodiment, a method of implementing a MAC superframe structure for short-range wireless networks includes transmitting multiple beacon slots (10-28-2010
20100272073RESOURCE ALLOCATION IN WIRELESS COMMUNICATION NETWORK - Embodiment of the disclosure set forth resource allocation in a wireless network. Some example methods include selecting a node based on probability of having available data at the node, sending an inquiry to the node, deriving a first set of average cost estimates based on a first step-size function, network information measured at the node, and a predetermined value, calculating a second set of threshold values based on a second step-size function and the first set of average cost estimates, updating the second set of values to generate a third set of threshold values based on the predetermined value, and allocating resources for the node based on the third set of threshold values.10-28-2010
20100008332Method for half-and full-duplex subscriber station operation in frequency division duplex systems - The present invention provides a novel framing structure that can be used to smoothly evolve a Time Division Duplex (TDD) wireless communications technology to a Frequency Division Duplex wireless communications technology. A method for establishing the start time of an uplink frame that is offset in relation to a downlink frame by an allocation start time is provided. In addition, methods of allocating downlink and uplink resources for half-duplex and full frequency division duplex operation with adequate provisions for transmit-receive and receive-transmit time gaps are also provided.01-14-2010
20120257601METHOD AND APPARATUS FOR MANAGING MULTIPLE TIMING ADVANCE GROUPS IN MOBILE COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION - A method and apparatus for managing multiple Timing Advance Groups (TAGs) operating with different timings are provided for use in a Long Term Evolution (LTE) system. The method for managing multiple TAGs at a base station of a wireless communication system supporting carrier aggregation according to an exemplary embodiment of the present invention includes categorizing a plurality of carriers into at least one TAG according to a predetermined rule, assigning a TAG index to each TAG, transmitting the TAG index to a terminal, generating a Timing Advance Command (TAC) for synchronization, and transmitting the TAC to the terminal in a random access process. The method and apparatus for managing TAGs according to exemplary embodiments of the present invention is capable of informing of the timing advance group to which each carrier belongs and managing multiple timing advance groups efficiently without signaling overhead.10-11-2012
20120263152SYSTEMS AND METHODS FOR IP COMMUNICATION OVER A DISTRIBUTED ANTENNA SYSTEM TRANSPORT - Systems and methods for IP communication over a distributed antenna system transport are provided. In one embodiment, a method for providing Ethernet connectivity over a distributed antenna system comprises receiving internet protocol (IP) formatted data from an internet protocol device coupled to a remote unit of a distributed antenna system; sampling wireless radio frequency (RF) signals received at the remote unit to produce digitized RF samples; generating a serial data stream for output to a host unit of the distributed antenna system, the serial data stream further comprising a multiple-timeslot communication frame providing a first partition of bandwidth for transporting the digitized RF samples and a second partition of bandwidth for implementing an Ethernet pipe for transporting the IP formatted data.10-18-2012
20120263153METHOD OF SUPPORTING DATA RETRANSMISSION IN A MOBILE COMMUNICATION SYSTEM - A method of supporting packet transmission in a mobile communication system is disclosed according to the present invention. A method of transmitting packets at a user equipment in a mobile communication system comprises transmitting a first packet to a network and transmitting a second packet to the network regardless of a reception status signal for the first packet, when control information for the second packet is received from the network.10-18-2012
20120188989RADIO TERMINAL AND TRANSMISSION RATE PREDICTION METHOD - In a radio communication system employing HARQ scheme wherein the maximum number of slots is changed, a radio terminal (07-26-2012
20120082142METHOD OF ALLOCATING RADIO RESOURCE AND TRANSMITTING DATA - Provided is a data transmission method. The data transmission method may limit a use authorization for a contention time period so that a portion of data transmission devices among a plurality of data transmission devices may transmit data during the contention time period.04-05-2012
20120082141Method And Apparatus For Improved Paging In Wireless Communication - Various methods and devices are provided to address the need to reduce paging latency. In one method, a wireless network determines (04-05-2012
20120082140Method of TDM In-Device Coexistence Interference Avoidance - A method of TDM in-device coexistence (IDC) interference avoidance is proposed. In a wireless communication device, a first radio module is co-located with a second radio module in the same device platform. The first radio module obtains traffic and scheduling information of the second radio module. The first radio module then determines a desired TDM pattern based on the traffic and scheduling information to prevent IDC interference with the second radio module. The first radio module also transmits TDM coexistence pattern information based on the desired TDM pattern to a base station. In one embodiment, the TDM coexistence pattern information comprises a recommended TDM pattern periodicity and a scheduling period to maximize IDC efficiency subject to limited level of IDC interference possibility. In one specific example, the TDM coexistence pattern information comprises a set of discontinuous reception (DRX) configuration parameters defined in long-term evolution (LTE) 3GPP standards.04-05-2012
20120082139DISTRIBUTED MEDIUM ACCESS SCHEDULING WITH IMPLICIT ORDERING - Provided is distributed medium access scheduling with implicit ordering (DSIO). The DISO includes the steps of: (a) when any terminal of a plurality of terminals included in a terminal group has data to transmit, promoting the terminal to a transmission data existence layer; (b) when any blue terminal of a plurality of blue terminals included in a blue terminal group has no data to transmit, degrading the blue terminal to a transmission data non-existence layer; and (c) when any red terminal of a plurality of red terminals included in a red terminal group succeeds in intruding between the blue terminals and recognizes whether or not to transmit data without a collision, promoting the red terminal to the blue terminal group.04-05-2012
20090016305METHOD FOR AVOIDING AND OVERCOMING INDIRECT COLLISION IN BEACON-MODE WIRELESS SENSOR NETWORK - There is provided to a method for avoiding indirect collision of beacon, including: collecting beacon information of neighboring nodes and allocating a time slot based on the collected beacon information; transmitting information on the allocated time slot to the neighboring nodes depending on time slots of the neighboring nodes; and checking whether the time slot overlaps based on a reply message from the neighboring nodes and reallocating a time slot upon occurrence of overlapping.01-15-2009
20120230302Method and System for Handling Congestion in a Communications System - An apparatus for managing contention in a communications system, the apparatus comprising a processor and a non-transitory computer readable storage medium storing programming for execution by the processor. The programming may include instructions to receive a ranging code from a device in a ranging channel, the ranging code corresponding to a current ranging attempt. The programming may further include instructions to broadcast a message acknowledging reception of the ranging code. The programming may further include instructions to receive a ranging request message from the device, the ranging request message comprising a ranging retries parameter that specifies a number of ranging retries that the device performed during the current ranging attempt.09-13-2012
20110122851SELF-ORGANIZING COMMUNICATIONS NETWORK AND METHOD FOR THE OPERATION THEREOF - A radio communication network having at least two base stations. The base stations communicate with mobile stations using time slots. The time slots are divided into transmission slots, during which the base stations transmit messages, and receiving slots, during which the base stations receive messages. The base stations jointly determine an assignment of the time slots as transmission slots and receiving slots.05-26-2011
20130170478WIRELESS COEXISTENCE BASED ON NETWORK ALLOCATION VECTOR USAGE - A wireless apparatus includes a wireless transceiver, a WLAN controller and a second controller coupled to the wireless transceiver. The WLAN controller is configured to send/receive packets in accordance with a WLAN protocol, and the second controller is configured to send/receive packets in accordance with a second wireless protocol. The apparatus includes scheduling logic that determines whether a WLAN communication will complete before an end of a WLAN active time period. If the scheduling logic determines that the WLAN communication will not complete before the end of the WLAN active time period, the scheduling logic causes the WLAN controller to transmit a WLAN packet that encodes a NAV value that prevents an access point from using the wireless medium until an end of second time period. The second controller is configured to use the wireless medium during the second time period.07-04-2013
20080298326GUARD SUBCARRIER PLACEMENT IN AN OFDM SYMBOL USED FOR SYNCHRONIZATION - Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter is for use with a base station in a cellular communication system and includes a partitioning unit configured to provide first and second groups of guard subcarriers that partition a synchronization portion from data portions in a downlink synchronization signal. The transmitter also includes a transmit unit configured to transmit the downlink synchronization signal. Additionally, the receiver is for use with user equipment in a cellular communication system and includes a receive unit configured to receive a downlink synchronization signal. The receiver also includes a processing unit configured to provide a synchronization portion based on employing first and second groups of guard subcarriers that partition the synchronization portion from data portions of the downlink synchronization signal.12-04-2008
20120327917METHOD AND DEVICE FOR ALLOCATING CONTROL CHANNEL - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device which enable a terminal to receive a control channel in a wireless communication system that uses multi-carriers, the method comprising the following steps: receiving a plurality of search space through a sub-frame, wherein each of the search spaces includes a plurality of control channel candidate sets and each of the search spaces corresponds to each of the carriers; and monitoring the control channel candidates for control channels, wherein the plurality of search spaces are connected in the resource region for the control channels according to an allocation pattern and with the starting point as the basis, and the allocation pattern changes according to time.12-27-2012
20120327916METHOD FOR TRANSMITTING UPLINK CONTROL INFORMATION AND USER DEVICE - The present invention provides a method for transmitting uplink control information and a user device, which transmits ACK/NACK (ACKnowledgement/Negative ACK) information and uplink control information other than the ACK/NACK information using a first PUCCH resource for transmitting the ACK/NACK information and a second PUCCH resource for transmitting the uplink control information within an uplink sub-frame, respectively when the first PUCCH resource and the second PUCCH resource belong to the same PUCCH area in each slot of the uplink sub-frame, and to drop the transmission of the uplink control information other than the ACK/NACK information using the first PUCCH resource when the first PUCCH resource and the second PUCCH resource belong to different PUCCH areas within the uplink sub-frame.12-27-2012
20120327914METHOD FOR TRANSMITTING SOUNDING SIGNAL IN WIRELESS COMMUNICATION SYSTEM - Disclosed is a method for allowing a station to transmit a sounding signal in a multiple-antenna wireless communication system, the method including receiving a group defining information about a group to which the station belongs from an access point (AP); determining a transmission time taken in transmitting a sounding signal by the respective stations, which belong to the group, on the basis of the group defining information; and transmitting a sounding signal to the AP in accordance with the transmission time and preset transmission order when receiving a sounding request signal from the AP.12-27-2012
20120327912METHOD AND APPARATUS FOR IMPROVING RECEPTION AVAILABILITY ON MULTI-SUBSCRIBER IDENTITY MODULE DEVICES - An approach is provided for improving reception availability for multi-subscriber identity module (SIM) devices. The approach involves determining network access information for one or more applications resident on a device having two or more subscriber identity modules, wherein the network access information specifies, at least in part, one or more network access schedules, which of the two or more subscriber identity modules to use for establishing one or more network connections for the one or more applications, or a combination thereof. The approach also involves processing and/or facilitating a processing of the network access information to determine a coordinated network access schedule for the one or more applications. The approach further involves determining to use the coordinated network access schedule in place of the one or more network schedules to cause, at least in part, an establishment of the one or more network connections.12-27-2012
20120327915PPDU RECEIVING METHOD AND APPARATUS BASED ON THE MIMO TECHNIQUE IN A WLAN SYSTEM - Provided is a method of receiving a physical layer convergence procedure (PLCP) protocol data unit (PPDU) by an access point (AP) in a wireless local area (LAN) system. The method includes: allocating a first transmission channel bandwidth to a first station (STA) which is multiple input multiple output (MIMO)-paired with the AP; allocating a second transmission channel bandwidth to a second STA which is MIMO-paired with the AP; transmitting to the first STA and the second STA a sync trigger for determining a time point at which the first STA transmits a first PPDU and a time point at which the second STA transmits a second PPDU; and receiving simultaneously the first PPDU and the second PPDU from the first STA and the second STA.12-27-2012
20120269180METHOD AND APPARATUS FOR SUPPORTING SYNCHRONOUS HARQ TRANSMISSION - A method and apparatus for supporting synchronous Hybrid Automatic Repeat reQuest (HARQ) transmission of Uplink are disclosed. When uplink/downlink configurations of multiple CA cellsrrier Aggregation (CA) are different, by configuring the HARQ transmission timing relations of primary cell and secondary cell, it is guaranteed that, with cross-carrier scheduling, the timing relation between a transmission of PUSCH in the Pcell and subsequent retransmission of PUSCH in the Scell is the same as that in Long Term Evolution (LTE) and LTE Advanced (LTE-A).10-25-2012
20120269179METHOD AND APPARATUS FOR TRANSMITTING ACKNOWLEDGEMENT/NONACKNOWLEDGEMENT SIGNALS IN A WIRELESS COMMUNICATION SYSTEM - A method for transmitting Acknowledgement/Non-Acknowledgement (ACK/NACK) signals by a User Equipment (UE) in a wireless communication system using Carrier Aggregation (CA) is provided. The method includes receiving, from a base station, information on a Primary Cell (Pcell) and a Secondary Cell (Scell), determining a timing position for transmitting the ACK/NACK signals based on the received information, and transmitting, to the base station, the ACK/NACK signals in the determined timing position.10-25-2012
20120269181COOPERATIVE TRANSCEIVING BETWEEN WIRELESS INTERFACE DEVICES OF A HOST DEVICE WITH SHARED MODULES - A circuit includes a first wireless interface circuit that transceives packetized data between a host module and a first external device in accordance with a first wireless communication protocol, wherein the first wireless protocol carries wireless telephony data for communication with a wireless telephony network. A second wireless interface circuit transceives packetized data between the host module and a second external device in accordance with a second wireless communication protocol. The second wireless interface circuit includes at least one module that is shared with first wireless interface circuit. The first wireless interface circuit and the second wireless interface circuit operate in accordance with a wireless interface schedule that includes a first time interval where the first wireless interface device and the second wireless interface device contemporaneously use the at least one module.10-25-2012
20120269178METHODS AND APPARATUS FOR TIMING SYNCHRONIZATION FOR PEER TO PEER DEVICES OPERATING IN WWAN SPECTRUM - A method, an apparatus, and a computer program product are provided in which a clock timing is determined for utilizing resources including peer-to-peer resources based on a WWAN downlink receive timing and a WWAN uplink transmit timing. In addition, the clock timing is utilized for peer-to-peer communication with the peer-to-peer resources.10-25-2012
20120320881APPARATUS AND METHOD FOR ALLOCATING TIME SLOTS TO NODES WITHOUT CONTENTION IN WIRELESS NETWORK - Provided is an apparatus and method for allocating time slots to nodes without contention in a wireless network. The method for allotting time slots includes: receiveing a packet length and maximum allowable latencies of the nodes and converting them into data in symbol units; determining a beacon order so that a beacon interval representing a length of a superframe is smaller than or equal to a minimum value of the converted maximum allowable latencies; determining a superframe order so that the sum of a length of a beacon frame, a length of a contention access period, and a length of contention free period is smaller than a length of an active portion, based on the converted packet length; and allocating a guaranteed time slot without contention to each node according to an allocation priority order for the nodes.12-20-2012
20120320884METHOD AND SYSTEM FOR MANAGING A TEMPORARY BLOCK FLOW IN A DATA COMMUNICATION NETWORK ENVIRONMENT - The present invention provides a method and system for managing temporary block flow in a data communication network environment. In one embodiment, a temporary block flow is established between the first entity and the second entity. Then, it is determined whether the established TBF is to be maintained for a predetermined time period by the first entity based on quality of service (QoS) parameters associated with the established TBF. Further, a message indicating that the established TBF is to be maintained for the predetermined time period is sent to the second entity if the established TBF is to be maintained. Also, the established TBF between the first entity and the second entity is extended in uplink or delayed in downlink. If the established TBF is not to be maintained, the TBF established between the first entity and the second entity is teared down.12-20-2012
20120320883METHOD FOR TRANSMITTING ACK/NACK INFORMATION TO UPLINK PHYSICAL CONTROL CHANNEL - Disclosed is a communication system which transmits Acknowledgement (ACK)/Negative Acknowledgement (NACK) information on downlink data by using an uplink control channel. The communication system individually allocates radio resources for a plurality of slots included in an uplink subframe. Consequently, uplink radio resources may be used freely, and it is even possible to flexibly handle a situation in which the amount of the ACK/NACK information is increased.12-20-2012
20120320882INTERCELL INTERFERENCE MITIGATION - Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.12-20-2012
20120320885MIXED MODE PREAMBLE FOR MIMO WIRELESS COMMUNICATIONS - A preamble of a frame for a multiple input multiple output (MIMO) wireless communication for a first transmit antenna of the MIMO communication includes a legacy preamble portion in accordance with a legacy wireless communication protocol. The preamble of the frame for the MIMO wireless communication for the first transmit antenna also includes a current protocol preamble portion in accordance with a protocol of the MIMO wireless communication. The preamble of a frame for at least a second antenna of the MIMO communication includes a cyclically shifted legacy preamble portion for the frame. The preamble of the frame for the MIMO wireless communication for the second transmit antenna also includes a second current protocol preamble portion in accordance with a protocol of the MIMO wireless communication.12-20-2012
20120093133TECHNIQUE FOR PROCESSING FLOWS IN A COMMUNICATIONS NETWORK - A method is provided for processing flows in a wireless communications network. Data packets belonging to different flows are received by a device of a communications network and stored in a queue to enable them to be sent by the device over a radio channel to at least one node. Access to the radio channel is time-shared between a plurality of nodes. The method includes: at least one step of determining a duration associated with a flow, the duration corresponding to a virtual duration needed for sending packets of said flow stored in the queue; and in order to send a data packet, a step of selecting one of the flows amongst a plurality of flows, in which step a flow is selected for which the associated duration is the smallest, and a step of sending a packet of the selected flow as extracted from the queue.04-19-2012
20100232397Method and Apparatus for Improved Cell Acquisition with Reduced Frequency Error Impact - A method and apparatus for improved initial cell acquisition with reduced frequency error impact. The method determines the slot timing of a transmission, identifies the primary scrambling code and frame timing using the common pilot channel, and provides a path profile using a pseudorandom noise (PN) search. An apparatus using a cell searcher that performs the method is also described.09-16-2010
20100232399WIRELESS COMMUNICATION SYSTEM, CONTROL CENTER, AND BASE STATION - The base station includes a notification module configured to notify a control center of output power data, a measurement module configured to measure a reception quality of each time slot from received radio signals of control data transmitted from other base stations via a control channel, and a transmission module configured to transmit reception quality data indicating the reception quality to the control center, along with data indicating the time slot selected by the base station. The control center includes a reception module configured to receive the output power data, the reception quality data, and the data indicating the time slot, and a construction module configured to construct adjacent base station data indicating adjacency relationship between the base stations by comparing the reception quality and the output power of each of the base stations, the reception quality being obtained by converting the reception quality data based on the time slot.09-16-2010
20100232398RESOURCE ALLOCATION METHOD, MAP CONFIGURATION METHOD, AND RESOURCE ALLOCATION INFORMATION TRANSMISSION METHOD IN MOBILE COMMUNICATION SYSTEM - When characters are allocated to a keyboard, a plurality of consonants are divided into a plurality of groups according to pronunciation position in the oral cavity, and the groups are allocated to corresponding columns on the keyboard of 3 rows and 10 columns. A plurality of vowels are allocated to the corresponding columns according to the pronunciation position in the oral cavity. In this instance, the consonants and the vowels of which the pronunciation position are near the lips are allocated to the middle area of the area of 3 rows and 10 columns, and the consonants and the vowels of which the pronunciation position are near the vocal chords are allocated to the outer part of the area of 3 rows and 10 columns. The consonants and the vowels are allocated to the corresponding rows of the area of 3 rows and 10 columns according to usage frequency.09-16-2010
20100232396QUALITY OF SERVICE ARCHITECTURE FOR HOME MESH NETWORK - An embodiment is a technique to perform QoS. An interface between an upper layer and a lower layer in a multi-hop mesh network receives and transmits packets from and to a local node and a remote node. A classifier classifies the received packets into a plurality of packet types having different priority levels. A queue manager manages a plurality of buffers organized according to the packet types. The plurality of buffers stores the classified packets based on the packet types. A scheduler schedules distributing the packets from the plurality of buffers based on the priority levels according to a scheduling policy.09-16-2010
20110243110Wireless Network Beacon Timing - An apparatus and method of a wireless network timing transmission of multiple BSSID beacons is disclosed. One method includes a method of a wireless access node within a wireless mesh network timing transmission of multiple BSSID beacons. The method includes the access node identifying multiple personalities of the wireless mesh network, wherein a separate MAC address corresponding with each of the personalities. The access node assigns a beacon type for each of the personalities. During each transmission frame, the access node consecutively transmits a plurality of the beacon types, wherein the different beacon types are consecutively spaced during transmission by a predetermined period. The predetermined period is substantially less than a time duration of each transmission frame.10-06-2011
20120087352METHOD FOR ENSURING MEDIUM ACCESS IN A WIRELESS NETWORK - Method and apparatus for controlling transmission of a data stream from a station. A QoS registration frame is received, via an access point, from the station. The QoS registration frame includes information indicating a request for transmission of a data stream from the station, and information indicating a minimum required interval and a maximum required interval for an interval which is between start points of two successive durations of a medium dedication. Each duration of the medium dedication represents a time period in which the station is permitted to transmit the data stream. A schedule for the transmission of the data stream is calculated by setting a new interval which is between the minimum required interval and the maximum required interval, when the transmission is admitted. A QoS response frame, which includes information indicating the schedule, is then transmitted from the access point to the station,04-12-2012
20120087351METHOD AND DEVICE FOR TRANSMITTING INFORMATION IN CONTENTION ON TIME SLOTS BETWEEN TRANSCEIVER NODES OF AN AD HOC NETWORK - The method for transmitting information in an ad hoc network comprises at least two transceiver nodes able to receive and transmit information and communicating with each other by sending information in random access time slots organized in frames.04-12-2012
20120087349ACK/NACK Bundling - In one embodiment, a first system receives N data transmissions from a second system. The first system combines N ACK/NACK responses, corresponding to the N data transmissions received, and encodes the combined N ACK/NACK responses by selecting a position of a communication channel over which the first system sends ACK/NACK transmissions to the second system and setting a value for each bit sent during each ACK/NACK transmission based on the combined N ACK/NACK responses. The first system sends the bits at the selected position of the communication channel. The second system, upon receiving the bits sent at the selected position of the communication channel, decodes the N ACK/NACK responses based on the position at which the bits are sent and the bits.04-12-2012
20120087348FACILITATING DISTRIBUTED CHANNEL ACCESS FOR A PLURALITY OF ACCESS TERMINALS TRANSMITTING IN A WIRELESS COMMUNICATION ENVIRONMENT - Methods and apparatuses are provided for facilitating distributed transmissions among a plurality of access terminals. An access point may send an initial indicator count for each access terminal to follow a respective number of indicators when transmitting during a transmission opportunity. An access terminal may receive its respective initial indicator count, and may send a transmission after detecting a number of indicators equal to the assigned initial indicator count. A continuation indicator count may also be sent to each access terminals, where the continuation indicator count specifies a number of indicators each access terminal is to wait after sending a preceding transmission and before sending a subsequent transmission.04-12-2012
20120087347METHODS AND APPARATUS FOR JOINT SCHEDULING OF PEER-TO-PEER LINKS AND WIRELESS WIDE AREA NETWORK LINKS IN CELLULAR NETWORKS - A wireless device, a method, and a computer program product in a wireless device are provided in which a scheduling control signal is received in peer-to-peer resources. In addition, whether to yield a data transmission is determined based on the received scheduling control signal. Furthermore, the data transmission is sent to a base station on the peer-to-peer resources upon determining not to yield the data transmission. A base station, a method, and a computer program product in a base station are also provided in which a scheduling control signal is received in peer-to-peer resources. In addition, whether to yield a data transmission is determined based on the received scheduling control signal. Furthermore, the data transmission is sent to a wireless device on the peer-to-peer resources upon determining not to yield the data transmission.04-12-2012
20120327913MULTI-RADIO COEXISTENCE - In a multi-radio user equipment, communications on a Long Term Evolution (LTE) radio and Wireless Local Area Network (WLAN) radio operating in Wi-Fi mode may be aligned to reduce interference between the two radios. Communications of the WLAN radio may be aligned to the LTE radio using Notice of Absence (NoA) functionality.12-27-2012
20120281679RACH communication in cellular system - A solution for sharing random access parameters is provided. A plurality of terminal devices shares the same random access parameters, e.g. the random access preamble sequence, and different transmission opportunities are assigned to the terminal devices. The different transmission opportunities are used to distinguish the terminal devices in the random access procedure.11-08-2012
20100195626METHODS AND SYSTEMS FOR USER SELECTION IN WIRELESS COMMUNICATION NETWORKS - A method of scheduling data transmission in a wireless network is disclosed. The wireless network includes an access router and a plurality of access terminals connectable to the base station. The method includes determining a number of the access terminals that are connected to the base station, and comparing the number with a threshold. The method further includes determining, based on the comparison between the number of connected access terminals and the threshold, whether to send a dedicated control signal or a shared control signal from the base station, in order indicate which ones of the plurality of access terminals are scheduled to transmit data during a slot.08-05-2010
20100202419RADIO SCHEDULER AND DATA PLANE INTERFACE - Briefly, in accordance with one or more embodiments, a MAC layer architecture for a base station may comprise a radio scheduler disposed in a control plane separate from the data plane modules of a data plane.08-12-2010
20100202418SCHEDULING OF DATA PACKETS OVER AN AIR INTERFACE OF A CELLULAR COMMUNICATION SYSTEM - A scheduler (08-12-2010
20100202417MEDIUM RESERVATION ANNOUNCEMENT - In wireless meshes, mesh points announce reservation of the wireless medium in beacon frame. Each mesh point determines scheduled reservation of the medium for transmission of the future beacon frames and scheduled reservations of the medium for data communication with the station The station further aggregates the reservations into a single element: an medium occupation element and integrates this element into the beacon frame for future transmission to nearby mesh points.08-12-2010
20100202416Data Packet Communication Scheduling in a Communication System - A communication device has a plurality of concurrently operating transceiver systems, each operating in a respectively different one of a plurality of communication systems. Operation of the transceiver systems is coordinated by receiving a plurality of requests from different ones of the transceiver systems, each of the requests being a request to access a communication medium for the purpose of transmitting or receiving a data packet. Utilization of an available time period is scheduled by selecting which one or ones of the requests to grant based, at least in part, on how many remaining times out of a maximum number of times each of the transmission systems' data packet is permitted to be retransmitted compared to other requests, on whether the requests are requests to transmit a data packet, and on whether the requests are requests to receive a data packet.08-12-2010
20100202415DATA PACKET TRAFFIC SCHEDULING - Techniques of scheduling data packets are disclosed. For example, such data packet scheduling techniques may be employed to schedule data packets on wired and/or wireless networks. An example embodiment includes techniques for scheduling voice-over-Internet protocol data packets transmitted between a base station and a subscriber station on a WiMAX network.08-12-2010
20120140746METHOD AND DEVICE FOR TRANSMITTING DOWNLINK INFORMATION IN MULTI-CARRIER AGGREGATION SYSTEM - A method and a device for transmitting downlink information in a multi-carrier aggregation system are provided. The Method includes: a base station side sends a downlink subframe to a terminal side, wherein, the physical downlink control channel (PDCCH) in the downlink subframe is used for bearing the downlink control indicating information and the carrier scheduling indicating information corresponding to each downlink control indicating information. It solves the problem that the terminal side can not clearly identify the downlink control information (DCI) of different carriers, which is caused by that the length of DCI may be same due to the difference of the bandwidths of carriers in the carrier aggregation system.06-07-2012
20120140745METHOD FOR OPERATING DEVICE IN PERSONAL AREA NETWORK - A method for operating a device in a personal area network (PAN), includes: obtaining physical layer information regarding a physical layer; scanning a channel on the basis of the physical layer information; selecting a channel on the basis of channel information obtained through the channel scanning process; determining whether or not there is a PAN coordinator with respect to the selected channel; and when a PAN coordinator does not exist in the selected channel, transmitting a beacon signal including information regarding a superframe structure, wherein the superframe structure includes at least one sub-superframe, and the information regarding the superframe structure includes information regarding the number of beacon slots for transmitting a beacon signal in each sub-superframe, the number of data slots for transmitting data in each sub-superframe, and the number of sub-superframes.06-07-2012
20130010772METHOD AND APPARATUS FOR ENABLING REGISTRATION OF ENDPOINT DEVICES THROUGH PROVISIONING - A method and apparatus for enabling registration of an endpoint device that is incapable of supporting a Session Initiation Protocol (SIP) based Internet Protocol Multimedia Subsystem (IMS) registration are disclosed. For example, the method performs a static registration of the endpoint device in a plurality network elements associated with an Internet Protocol Multimedia Subsystem (IMS) network by provisioning that is initiated by a service provider of the IMS network. The method processes an originating call request or a terminating call request associated with the endpoint device by an Application Server (AS) using the static registration, wherein the application server is one of the plurality network elements.01-10-2013
20130010770CELL SEARCH METHOD, FORWARD LINK FRAME TRANSMISSION METHOD, APPARATUS USING THE SAME AND FORWARD LINK FRAME STRUCTURE - A method of and an apparatus therefor searching a cell in a mobile station of a communication system in which a plurality of cells are grouped into a plurality of cell groups, and each cell group includes at least two cells. The method includes detecting a primary synchronization signal and a secondary synchronization signal from a received signal, and identifying a cell based on a combination of the primary synchronization signal and the secondary synchronization signal. The secondary synchronization signal is related to the cell group to which the mobile station belongs and the primary synchronization signal is related to the cell to which the mobile station belongs within the cell group.01-10-2013
20130010769METHOD AND APPARATUS FOR RESERVING DATA CHANNEL IN A WIRELESS ACCESS SYSTEM - Methods for reserving a data channel and apparatuses supporting the same are disclosed. A method for reserving a data channel in a wireless access system includes transmitting a request frame for reserving the data channel by a sending node, and receiving a notify frame in response to the request frame during a first time period or a second time period by the sending node. If the notify frame is received during the first time period, the sending node determines that the request frame has been collided, and if the notify frame is received during the second time period, the sending node determines that the data channel has been reserved successfully.01-10-2013
20130010771Transmission Format Selection For Optimizing Transmission Of Delay Sensitive Traffic - A method, scheduler, and processor program product for scheduling transmission of packets from a base station to a mobile station. A data rate control index is received from a mobile station. A transmission format is selected using the received data rate control index. The selected transmission format uses a payload size that is smaller than a largest compatible payload size for another transmission format corresponding to the received data rate control index and that is smaller than a total size of packets waiting to be transmitted.01-10-2013
20130010768Communication Method in a Mobile Communication System Using MTC Equipment, and Device for Same - The present invention relates to a method for enabling the efficient communication of machine-type communication (MTC) equipment by selecting a connection with a base station during a first allowed time period in a mobile communication system using the MTC equipment, and to a device for same. With regard to an example of the present invention, a communication method for MTC equipment in a wireless mobile communication system may include: receiving a first message, including information regarding the first allowed time period, from a network through dedicated signaling; transmitting or receiving data to/from the network during the first allowed time period included in the first message; and receiving, from the network, a second message including information regarding a second allowed time period different from the first allowed time period.01-10-2013
20130016704WIRELESS TRANSMISSION METHODAANM Lin; Chien-NanAACI TaipeiAACO TWAAGP Lin; Chien-Nan Taipei TW - A wireless transmission method is provided for allowing data transmission between plural wireless devices. In the wireless transmission method, each time cycle is divided into a flag time segment and a transmission time segment. The flag time segment includes plural flag time slots corresponding to respective wireless devices, and the transmission time segment includes plural transmission time slots. After the plural wireless devices are synchronized with each other, the wireless device for transmitting data issues a transmission request during the corresponding flag time slot. In response to the transmission request, a corresponding wireless device issues an assigning command during the corresponding flag time slot. The wireless device issuing the transmission request will transmit data during a transmission time slot assigned by the assigning command. In accordance with the wireless transmission method, each of the plural wireless devices has transmitting and receiving capability.01-17-2013
20130016703User Identifier Multiplexing By Time DivisionAANM Ranta; Jukka TapioAACI KaarinaAACO FIAAGP Ranta; Jukka Tapio Kaarina FI - A network assigns to a first user equipment UE and to a second UE a same temporary identifier for use at least while the first and the second UEs are simultaneously in a connected state in a same cell. Individual control channel transmissions utilizing the temporary identifier are selectively associated to only one of the first and the second UEs according to a predetermined time domain division. In various embodiments the time domain division comprises discontinuous reception DRX periods having mutually exclusive reception time periods; or mutually exclusive radio frame or subframe groups assigned to the first and second UEs for at least downlink control channel transmissions. Such radio frame/subframe groups may be even and odd numbered, or may be given by any of various example formulas if there are two or more UEs sharing the same temporary identifier. For an LTE system such an identifier may be the C-RNTI.01-17-2013
20130016706UL/DL SCHEDULING FOR FULL BANDWIDTH UTILIZATION - A method may include receiving, by a user equipment incapable of transmitting and receiving simultaneously, a schedule to transmit data on an uplink, detecting, by the user equipment, whether there is data to be transmitted on the uplink, and receiving, by the user equipment, during a time corresponding to the schedule, data associated with a downlink, when it is determined that there is no data to be transmitted.01-17-2013
20130016707APPARATUS AND METHOD FOR TRANSMITTING UPLINK SCHEDULING REQUEST IN MOBILE COMMUNICATION SYSTEMAANM He; HongAACI BeijingAACO CNAAGP He; Hong Beijing CNAANM Li; YingyangAACI BeijingAACO CNAAGP Li; Yingyang Beijing CNAANM Sun; ChengjunAACI BeijingAACO CNAAGP Sun; Chengjun Beijing CN - A method and apparatus for transmitting an uplink Scheduling Request (SR) are provided. The method includes, obtaining a SR subframe configuration by receiving signaling, and transmitting SR information to a Base Station (BS) by using physical resources of another non-SR channel for transmitting other uplink control information. By applying the present invention, the SR, ACKnowledgement/Non-ACKnowledgement (ACK/NACK) or Channel Quality Indicator (CQI) information is returned to a BS when low Constant Modulus (CM) characteristic of an uplink Component Carrier (CC) is ensured.01-17-2013
20100172331SYSTEMS AND METHODS FOR SHIFTING THE POSITION OF A SYMBOL TO REDUCE TRANSMISSION OVERHEAD - A method for shifting the position of a symbol to reduce transmission overhead is described. A frame with a plurality of symbols is provided. A determination is made whether the frame includes an indication of an event. At least one symbol of the plurality of symbols is shifted based on the determination. A counter is set to an initial value. The frame with the at least one shifted symbol is transmitted.07-08-2010
20110158204RELIABLE AND LOW-LATENCY SENSOR NETWORK MAC SYSTEM AND METHOD USING SUPERFRAME - Provided are a reliability-based, real-time sensor network medium access control (MAC) communication system and method using a superframe. The superframe includes an active duration which is a time duration in which a communication is established, and a sleep duration which is a time duration in which no communication is established. The active duration includes a beacon block in which a plurality of beacon transmission nodes are respectively allocated beacon slots for transmitting a beacon frame, and a forwarding block in which each of sinks nodes is allocated a slot for unifying data regarding the sink node and data regarding sensor nodes managed by the sink node and transmit the result of unifying in order to establish a communication between the sink nodes and between each of the sink nodes and a base station.06-30-2011
20110158203PROPORTIONAL FAIR SCHEDULING WITH PACKET TRANSMISSION - A scheduler for transmission of Packetized data over a transmission link between a base station device and various terminal devices, each packet being associated with one terminal device, and the packets being of variable length. The scheduler calculates for each terminal device a proportional fair allocation metric, assigns a next available channel transmission resource to a device having a best metric, but only actually sends a next packet to a respective terminal device provided that respectively allocated and as yet unused channel transmission resources are sufficient to accommodate the next packet. Thus the packets are sent unfragmented and based on a proportional fair resource allocation.06-30-2011
20130022029DATA TRANSMISSION METHOD AND APPARATUS OF MACHINE-TYPE COMMUNICATION DEVICE IN WIRELESS COMMUNICATION SYSTEM - Provided are a data transmission method and apparatus of a machine-type communication (MTC) device in a wireless communication system. The MTC device receives common control channel (CCCH) configuration information for CCCH configuration of a normal terminal and the MTC CCCH configuration information for CCCH configuration of the MTC device from a base station, selects one MTC CCCH group from a set of the MTC CCCH groups on the basis of the CCCH configuration information and the MTC CCCH configuration information, and transmits or receives data through an the MTC CCCH to which the selected the MTC CCCH group belongs.01-24-2013
20130136111SIGNALING FOR WIRELESS COMMUNICATIONS - A communication system, such as a wireless CDMA system, detects markers with fewer errors by having field units transmit the markers at different power levels (e.g., 9 dB for one marker and 11 dB for another marker). The difference in power levels of the markers allows the base station to identify the request markers using alternative criteria with a low probability of error, where the alternative criteria may include comparing the markers to respective energy level thresholds, monitoring occupancy of time slots, occupancy of mutually exclusive code channels, or combinations thereof. For example, in one particular embodiment, a request marker, which is generally a high priority marker, is transmitted with higher power, which improves the probability of detection and reduces the probability of false detection of the request marker.05-30-2013
20130136110BASE STATION AND METHOD OF INTERFERENCE HANDLING - In a radio communication system where a base station provides blank time slots to avoid inter-cell interference, a decrease in throughput by an excess or shortage of blank time slots is prevented. This invention relates to a radio system that avoids interference in cooperation between base stations by providing blank time slots by a (first) base station. Other (second) base stations detect the number of served terminals affected by interference from the first base station that sets blank time slots, calculate required blank time slots so that the number of required blank time slots will increase with an increase in the number of terminals located in cell edges, and send a notification of the required blank time slots to the first base station. The first base station determines whether system throughput is anticipated to improve, based on the above notifications, and adjusts the length of blank time slots.05-30-2013
20130136109Storage and Assignment of Control Timing Configurations in a Multiple Cell Communications Network - Example embodiments are directed towards a network node, and corresponding method, for a configuration of scheduling or control timing for a user equipment in a multiple cell communications network. The configuration of scheduling or control timing being based on at least two ordered sets of timing configuration numbers, each ordered set corresponding to a cell associated with the user equipment in the multiple cell communications network.05-30-2013
20130136108Base Station, User Equipment and Methods Therein for Control Timing Configuration Assignment in a Multiple Cell Communications Network - Example embodiments presented herein are directed towards a base station and method therein, for configuring control timing to and from a user equipment in a multiple component cell communications network. Example embodiments presented herein are also directed towards a user equipment and method therein, for configuration of control timing for a user equipment in a multiple component cell communications network.05-30-2013
20120243515Increasing Capacity in Wireless Communications - Techniques to increase the capacity of a W-CDMA wireless communications system. In an exemplary embodiment, early termination (09-27-2012
20120243514Method of Handling Uplink Time Alignment - A method of handling uplink time alignment for a communication device in a wireless communication system is disclosed. The method comprises being configured a primary cell and at least a secondary cell by a network of the wireless communication system, transmitting a random access preamble of a random access procedure on the secondary cell when one of the at least a secondary cell is activated, and receiving a random access response including a timing advance command for the secondary cell on the primary cell, the secondary cell, or another one of the at least a secondary cells.09-27-2012
20120243513RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND RADIO COMMUNICATION METHOD - To secure a constant level or more of radio communication quality for each user equipment performing radio communication with a base station apparatus, and to increase the number of user equipment which the base station apparatus can accommodate under a condition of assuring the radio communication quality. In a radio communication system where there exist a base station apparatus having multiple antennas and user equipment for performing radio communication with a first antenna group including one or more of the antennas, the first antenna group is made configurable for each user equipment individually, and addition/deletion of the antenna to/from the first antenna group is performed based on the communication quality of each user equipment so that the number of antennas within the first antenna group may be minimized within a range satisfying a required value of the communication quality between the base station apparatus ad the user equipment.09-27-2012
20080232332METHOD FOR SCHEDULING OF SERVICE DATA IN UPLINK, A BASE STATION, A USER TERMINAL AND A COMMUNICATION NETWORK THEREFOR - The invention concerns a method for scheduling of service data intended to be sent from a user terminal (UE09-25-2008
20130201971TRANSMISSION METHOD AND APPARATUS FOR NON-PERIODIC SOUNDING REFERENCE SIGNAL(SRS) - The present invention discloses a transmission method and apparatus for non-periodic SRS. eNB configures time-domain configuration parameter of non-periodic SRS through higher layer signalling or downlink physical control channel signalling; terminal equipment transmits non-periodic SRS in indicated time-domain resource. The application of the technical solution of the embodiments of the present invention can reduce signalling consumption through high layer semi-static configuration of time-domain resource of non-periodic SRS. On one hand, flexible non-periodic SRS time-domain transmission is allowed for terminal equipment which can send non-periodic SRS in multiple subframes, which is featured by low sounding delay and great sounding bandwidth; on the other hand, flexible timing mode is also permitted for terminal equipment which brings little restriction to scheduling.08-08-2013
20130201972FILTER STRUCTURE FOR ITERATIVE SIGNAL PROCESSING - A method is for communicating by tracking time varying channels in a multiple access packet based communication network. Each packet includes a preamble portion including a data symbol, and a data portion including data symbols. The method may include initializing a channel estimate reference from an initial channel estimate based upon the data symbol in a preamble portion of a received packet, and updating the channel estimate reference based upon a channel estimate of a current data symbol and a previously received data symbol from the data symbols in a data portion of the received packet. The method may also include repeating the updating upon receipt of a subsequent data symbol from the data symbols in the data portion of the received packet.08-08-2013
20130201975RESOURCE ALLOCATION FOR ENHANCED PHYSICAL DOWNLINK CONTROL CHANNEL (EPDCCH) - Certain aspects of the present disclosure provide techniques for systems that support DMRS-based transmissions, that may allow such systems to at least partially utilize resources in the center six RBs of subframes 0 and 5 for DMRS-based transmissions (e.g., EPDCCH), while avoiding collision with Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS) or Physical Broadcast Channel (PBCH).08-08-2013
20130201976COMMUNICATION SYSTEM AND TRANSMISSION UNIT - A signal transceiving section transmits a transmission signal to a transmission path, each frame in the transmission signal is divided into a plurality of periods in a time axis direction, and the plurality of periods includes superimposing period for superimposing a superimposed signal. A transmission unit includes a signal adjustment section for changing the proportion of the superimposing period in one frame of the transmission signal. The signal adjustment section adjusts the proportion of the superimposing period in accordance with a transmission state of the superimposed signal transmitted between second communication terminals. The signal adjustment section may adjust the proportion of the superimposing period so that the proportion of the superimposing period in one frame of the transmission signal increase with increasing the volume of transmission data transmitted between the second communication terminals through the superimposed signal.08-08-2013
20130201965WIRELESS NETWORKS UTILIZING MULTIPLE MODULATIONS - A method of communicating in a wireless network including a plurality of nodes having communications devices including a first node, wherein at least one node utilizes a first physical layer (PHY) modulation, and at least one other node utilizes a second PHY modulation different from the first PHY modulation. The first node receives a PHY frame transmitted by one of the plurality of nodes, and identifies a PHY modulation type selected from the first PHY modulation and the second PHY modulation used in the PHY frame or to be used in a subsequently to be received PHY frame or frame portion. The first node decodes the PHY frame or the subsequently to be received PHY frame or frame portion using the PHY modulation type identified in the identifying step.08-08-2013
20130201966METHOD AND SYSTEM FOR UPLINK INTERFERENCE MANAGEMENT IN HETEROGENEOUS CELLULAR NETWORKS - A method, at a first network access device of a heterogeneous network, the method sending a report to a second network access device indicating a user equipment (UE) in the vicinity of the second network access device to be handled in the uplink by the second network access device; receiving an uplink timing control report from the second network access device; transmitting uplink timing control adjustments to the UE; allocating uplink resources for the second network access device to forward uplink information; allocating physical downlink control channel (‘PDCCH’) resources belonging to the first network access device for transmitting uplink scheduling information provided by the second network access device to the UE; receiving uplink information including uplink scheduling information from the second network access device at the first network access device; and sending the uplink scheduling information to the UE.08-08-2013
20130201967Open/Closed Loop Synchronization for Radio Transmitters - Methods and systems can provide accurate synchronization of two nodes even when those nodes cannot communicate directly with one another. A method, for example, can include determining a first propagation delay estimate to a first node (08-08-2013
20130201968RADIO COMMUNICATION SYSTEM, HIGH-POWER BASE STATION, LOW-POWER BASE STATION, AND COMMUNICATION CONTROL METHOD - A radio communication system 08-08-2013
20130201969TDM Scheduling Method and Device for Scheduling Uplink Transmissions - The invention discloses a TDM scheduling method for scheduling Start uplink transmission in a cellular radio communication system, comprising: obtaining relevant parameters including an Uplink pilot quality for each TDM User Equipment in a cell and an available TDM load for TDM UEs in the cell; determining a TDM group size as a number of TDM UEs to be scheduled to transmit simultaneously in a Transmission Time Interval, TTI, by using the obtained relevant parameters; and scheduling the TDM UEs according to the determined TDM group size. The TDM UEs refer to the UEs to be scheduled according to the TDM scheduling method of the present invention in the cell. With the solution of the invention, the UL system performance can be improved. The proposed solution is easy to be implemented.08-08-2013
20080225802Transmission Method for a Time Divsion Duplex Mobile Communication System - A method for a time division duplex mobile communication system comprises that setting a minimum unit of transmission time interval and a system frame structure, wherein each radio sub frame is composed of a downlink pilot time slot, a switching guard period, a synchronization time slot and a plurality of service time slots, and the transmission time interval uses the length of time slot as a unit; a user obtaining downlink synchronization by receiving downlink pilot information of the downlink pilot time slot, and obtaining corresponding configuration information of cell by reading cell broadcasting information, and then transmitting uplink synchronization information in the synchronization time slot to fulfill a random access process, wherein the configuration information includes transmission time interval and system frame structure information; the network side/the user transmitting call information to an opposite end, and the opposite end processing call acknowledgement according to the transmission time interval; the network side allocating a channel for the user, wherein the network side and the user communicates through the allocated channel. The method reduces data transmission delay during communication, improves call throughout.09-18-2008
20130170475METHODS AND APPARATUS FOR COMMUNICATING SUBSCRIBER CONTROL PACKETS IN A TRUNKED RADIO SYSTEM - Embodiments include a trunking site base station receiving a first base station control packet over a network and, in response, transmitting a first subscriber control packet over a subscriber control channel at a first transmission time that is determined based on a transmission schedule. The first subscriber control packet includes a frame sync, a network ID, and a payload. Responsive to determining that a second base station control packet has not been received before a first timeout (or based on another trigger), the base station transmits a second subscriber control packet at a second transmission time that is determined based on the transmission schedule. The second subscriber control packet includes the frame sync and the network ID. The second subscriber control packet also may include a payload indicating a delay period for a subscriber radio to wait before making an attempt to register with a different trunking site.07-04-2013
20130170476METHOD AND APPARATUS FOR SCHEDULING VARIOUS TYPES OF PEER-TO-PEER COMMUNICATION LINKS - A base station allocates resources for peer-to-peer communications by creating or updating peer sets from measured performance information received from one or more stations. Based on current resource assignments in each timeslot and based on the peer sets, the base station determines excluded timeslots and preferred timeslots. The base station then marks potential resources in a portion of a resource allocation map. One of the potential resources is allocated for peer-to-peer communication between a transmitter station and one or more receiver stations.07-04-2013
20130170477METHOD FOR SECURING HANDOVER DATA INTEGRITY IN MOBILE COMMUNICATION SYSTEM AND SYSTEM THEREOF - A method of performing an uncontrolled handover data integrity of a target Base Station (BS) is provided. The method includes receiving an initial access request message from a Mobile Station (MS) by the target BS, performing a negotiation for establishing a handover data integrity path with a serving BS through a serving Access Service Network-Gateway (ASN-GW) by the target BS, and generating a main data path and a first handover data integrity path with the serving ASN-GW according to a result of the negotiation by the target BS.07-04-2013
20130170479RANDOM BACKOFF FOR EXTENDED ACCESS BARRING - Technology for initiating a random access procedure by a wireless device after extended access barring (EAB) is disclosed. The wireless device can release a bar on the wireless device. The bar can prevent the wireless device from accessing a node using EAB. The wireless device can count a random backoff time using a random backoff timer. The random backoff time can include a random time between zero and a maximum backoff time period. The wireless device can transmit a random access channel (RACH) message (including physical random access channel (PRACH) preamble) from the wireless device to the node to initiate a random access procedure after the expiry of the random backoff timer.07-04-2013
20130176993DEVICE, SYSTEM AND METHOD OF COMMUNICATING DURING A CONTENTION BASED ACCESS PERIOD - Some demonstrative embodiments include devices, systems and/or methods of communicating during a Contention-Based-Access-Period (CBAP). For example, a device may include a wireless communication station to transmit a wireless communication transmission over a wireless communication medium upon determining that the wireless communication medium is idle for a predefined time period within a contention-based-access period (CBAP), if a scheduling element allocating the CBAP includes an indication of an identity of the wireless communication station in a predefined field.07-11-2013
20130142178METHOD AND APPARATUS FOR PERFORMING DISCONTINUOUS RECEPTION OPERATION BY CONNECTED MODE USER EQUIPMENT IN A MOBILE COMMUNICATION SYSTEM - A method for performing a Discontinuous Reception (DRX) operation by a connected mode User Equipment (UE) in a mobile communication system. The method includes waking up at a wake-up timing, and determining whether an incoming data indication is received from a Node B; reestablishing uplink synchronization upon receipt of the incoming data indication; and waking up after sleeping for a time from the incoming data indication reception timing, receiving a transmission resource allocation message from the Node B, and receiving downlink data over allocated transmission resources.06-06-2013
20130142179OFDM-BASED MULTIPLE ACCESS METHOD AND COMMUNICATION DEVICE CONTROLLING THE SAME - An OFDM-based multiple access method and a communication device controlling the same are provided. The OFDM-based multiple access method includes transmitting a predetermined synchronization control signal to many and unspecified terminals, and receiving a test message from the terminals in response to the synchronization control signal; classifying the terminals that receive the test message in a first unit time from a predetermined reference time after the transmission of the synchronization control signal into a first group, and classifying the terminals that receive the test message in a certain n-th unit time from the reference time into an n-th group; allocating use permission time of sub-channels to the groups; and the terminals transmitting/receiving data through partial occupation of the sub-channels and symbols at a time allocated to the corresponding groups.06-06-2013
20130142175EFFICIENT SPECTRUM UTILIZATION WITH ALMOST BLANK SUBFRAMES - Systems and methods for providing efficient utilization of spectrum in a cellular communication network that applies Almost Blank Subframes (ABSs) are disclosed. In general, the network includes an access node that applies ABSs in the downlink. In one embodiment, the access node identifies UEs for which transmissions are to be scheduled for the uplink using a scheduling scheme that does not require control information for every subframe. The access node then time-aligns scheduling instants of the UEs and subframes in the uplink that correspond to at least some of the ABSs in the downlink. In another embodiment, the access node identifies UEs for which transmissions are to be scheduled for the downlink using a scheduling scheme that does not require control information for every subframe. The access node then time-aligns scheduling instants of the UEs for the downlink and at least a subset of the ABSs in the downlink.06-06-2013
20130142176SYSTEMS AND METHODS FOR REDUCING ACKNOWLEDGMENT MESSAGE OVERHEAD - Systems, methods, and devices for reducing the overhead required to transmit acknowledgment messages (ACKs) are described herein. In some aspects, the ACKs are reduced in size. In some aspects the ACKs include several short training fields. In some aspects, a receiver of the ACKs can determine the transmitter of the ACK based on when the ACK is received. In some aspects, a receiver of the ACKs can determine the transmitter of the ACK based on information superimposed on the short training fields in the ACK.06-06-2013
20130142177METHOD AND APPARATUS FOR ADJACENT-CHANNEL EMISSION LIMIT DEPENDING ON SYNCHRONIZATION OF INTERFERED RECEIVER - In accordance with an example embodiment of the present invention, an apparatus comprises a transceiver configured to receive a transmission from a radio node, the transmission including a synchronization signal; a processor configured to determine a state of synchronization with the radio node and based at least in part on the state of synchronization adjusting at least one transmission parameter.06-06-2013
20080212543RADIO COMMUNICATION SYSTEM, BASE STATION AND RADIO COMMUNICATION METHOD - The present invention is provided with a control channel searching unit 09-04-2008
20130114575METHOD FOR TRANSMITTING HARQ-ACK FEEDBACK INFORMATION - A method for transmitting Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) feedback information is provided. The method includes obtaining HARQ-ACK feedback information, a total number of bits of which is less than or equal to four through performing group bundling on the HARQ-ACK feedback information of all sub-frames in a current HARQ-ACK bundling window of two Component Carriers (CCs), determining a number of Physical Uplink Control Channel (PUCCH) resources provided for transmission of the HARQ-ACK feedback information according to data transmission modes of the two CCs, and a number of elements in the bundling window, and transmitting the HARQ-ACK feedback information after the group bundling to a base station on PUCCH channel resources adopting a PUCCH format 1b of channel selection according to the PUCCH channel resources mapped from the HARQ-ACK feedback information after the group bundling and modulation symbols.05-09-2013
20130114572UPLINK SYNCHRONIZATION WITH MULTIPLE TIMING ADVANCES IN A WIRELESS COMMUNICATION ENVIRONMENT - Technology for synchronization of uplink transmission with multiple timing advances in a wireless communication environment is disclosed. Additional resource allocation messages for additional timing advances are addressed to a user equipment specific search space. A number of band decodes needed to find a resource allocation message used to access an additional timing advance can be reduced by padding the resource allocation message. A number of blind decodes used to find the resource allocation message can also be reduced by restricting the control channel candidates in which the resource avocation can be embedded in terms of the control channel element aggregation level, or levels, associated with acceptable control channel candidates.05-09-2013
20130114571COORDINATED FORWARD LINK BLANKING AND POWER BOOSTING FOR FLEXIBLE BANDWIDTH SYSTEMS - Methods, systems, and devices are provided for coordinating forward link blanking and/or power boosting in wireless communications systems. Some embodiments include two or more bandwidth systems. The bandwidth of one bandwidth system may overlap with the bandwidth of another bandwidth system. This overlap may create interference. Coordinating forward link blanking and/or power boosting may aid in reducing the impact of this interference. Some embodiments utilize flexible bandwidth and/or normal bandwidth systems. Flexible bandwidth systems may utilize portions of spectrum that may not be big enough to fit a normal waveform, though some embodiments may utilize flexible waveforms that utilize more bandwidth than a normal waveform.05-09-2013
20130114579DATA TRANSMISSION METHOD, RELATED BASE STATION AND USER EQUIPMENT - Method for transmitting data between a base station (05-09-2013
20130114578TRANSMISSION METHOD AND APPARATUS FOR CARRIER AGGREGATION AND UPLINK MIMO - A transmission method for carrier aggregation, more particularly, for uplink MIMO and carrier aggregation, in a method for transmitting an uplink signal by the carrier aggregation in a terminal having at least four antennas, includes receiving a grant signal for transmission of the uplink signal, the grant signal including information related to use of a primary cell and a secondary cell, determining one antenna or at least two antennas to use the primary cell, determining one antenna or at least two antennas to use the secondary cell, and transmitting a first uplink signal to the primary cell and a second uplink signal to the secondary cell using the respective determined antennas.05-09-2013
20130201977METHOD AND SYSTEM FOR ASSIGNING ADDRESSES TO SUBSCRIBER STATIONS IN A WIRELESS COMMUNICATION ENVIRONMENT - A system and a method for assigning addresses to subscriber stations in a wireless communication environment are provided. The method includes receiving a request to register with a wireless communication network from a subscriber station, assigning a unicast address and at least one specific time duration to a subscriber station for communication with a network entity in the wireless communication network during registration process, and communicating the unicast address and the at least one specific time duration to the subscriber station, wherein the assigned unicast address is valid for the subscriber station during the at least one specific time duration.08-08-2013
20130114576APPARATUS AND METHOD FOR PERFORMING UPLINK SYNCHRONIZATION IN MULTIPLE COMPONENT CARRIER SYSTEM - The present invention relates to an apparatus and method for performing uplink synchronization n a multiple component carrier system. A method of User Equipment (UE) performing uplink synchronization in a multiple component carrier system includes receiving secondary serving configuration information on a cell used to configure one or more secondary serving cells in the UE from a Base Station (BS), receiving a Medium Access Control (MAC) message, including an activation indicator indicative of the activation or deactivation of the secondary serving cells configured in the UE and configuration information on a Timing Advance Group (TAG) that is a set of secondary serving cells having the same uplink time alignment value, from the BS, and setting the state of the secondary serving cells, configured in the UE, as activation or deactivation according to the activation indicator.05-09-2013
20130114574APPARATUS AND METHOD FOR DEFINING TIMING REFERENCE FOR SECONDARY CELLS IN A SECONDARY TIMING ADVANCE GROUP - A user equipment (UE) is configured to perform a method for determining a timing reference for a secondary cell (SCell) in a secondary timing advance group (sTAG). The method includes selecting a SCell among a plurality of SCells within a sTAG as an uplink timing reference cell based on a predefined rule that is known at the UE and an eNB in communication with the UE. The method also includes receiving a downlink carrier from the selected SCell and determining, from the downlink carrier, a downlink timing used as a reference for an uplink transmission timing.05-09-2013
20130114573Accommodating Semi-Persistent Scheduling in Heterogeneous Networks with Restricted Subframe Patterns - A method is provided for operating a network element in a wireless communications network. The method comprises transmitting, by a network element configured to utilize time domain measurement resource restriction, a first initial transmission under an SPS scheme, wherein retransmissions of the first initial transmission follow a first retransmission pattern. The method further comprises transmitting, by the network element, a second initial transmission under the SPS scheme, wherein retransmissions of the second initial transmission follow a second retransmission pattern, the second retransmission pattern allowing at least one retransmission of the second initial transmission to occur in a restricted subframe.05-09-2013
20130094479METHODS FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION (CSI) AND APPARATUSES THEREOF - A method for transmitting, by a user equipment (UE), a channel state information (CSI) in a wireless communication system is disclosed. The method includes receiving control information about a transmission of the CSI from a serving eNodeB, allocating a CSI combination composed of different CSIs to one subframe based on the received control information, and transmitting the CSI combination to the serving eNodeB in the allocated subframe, wherein the control information includes information on a maximum payload size of a CSI being able to be transmitted in one subframe, a transmission period and a transmission start time point of the CSI combination, and a transmission period and a transmission start time point of each of the different CSIs.04-18-2013
20130094481APPARATUS AND METHOD FOR MANAGING CHANNEL RESOURCE - An apparatus for managing a channel resource by a node sets a channel hopping sequence and a channel hopping offset value which are to be used, divides an assigned time slot into a plurality of subslots, divides a data frame for transmission into a plurality of subframes, and selects a channel for transmitting the plurality of subframes in the plurality of subslots, respectively, by channel hopping based on the channel hopping sequence, the channel hopping offset value, the index of the time slot, and the index of a subslot for transmitting a subframe.04-18-2013
20130094483Method And Apparatus For Handling Uplink Transmissions Using Multiple Uplink Carriers - A method and an apparatus for uplink transmission using multiple uplink carriers are disclosed. A wireless transmit/receive unit (WTRU) selects a dedicated channel medium access control (MAC-d) flow with highest priority data to be transmitted and performs uplink carrier selection and enhanced dedicated channel (E-DCH) transport format combination (E-TFC) restriction and selection to select a carrier among a plurality of carriers and select an E-TFC based on a maximum supported payload, a remaining scheduled grant payload of the selected carrier and a remaining non-scheduled grant payload. The WTRU then generates a medium access control (MAC) protocol data unit (PDU) for E-DCH transmission via the selected carrier based on the selected E-TFC.04-18-2013
20130094482METHOD AND APPARATUS FOR BUFFER STATUS REPORT IN MOBILE COMMUNICATION SYSTEM - A method and apparatus are provided for reporting a buffer status to a Node B, by a User Equipment (UE), in a mobile communication system. The method includes checking if a resource for data to be transmitted to the Node B is available, when there is a buffer status report triggered to be transmitted to the Node B; transmitting the buffer status report using the available resource, if the resource is available; and transmitting a scheduling request to the Node B, if the resource has not been allocated for a predetermined time duration.04-18-2013
20130094480METHOD AND APPARATUS FOR GENERATING CONNECTION IDENTIFIER FOR DEVICE-TO-DEVICE COMMUNICATION - A method and a device for generating a Connection Identifier (CID) for Device-to-Device (D2D) communication are provided. A transmitting device transmits a request signal for requesting direct communication between the transmitting device and a receiving device on a resource unit of a first resource index determined based upon at least one of a device ID of the transmitting device and a device ID of the receiving device during a predetermined first period, receives information about at least one used CID being used by at least one surrounding device from the peripheral device during a second period following the first period, transmits generation information including at least one available CID acquired during the second period on a resource unit of a second resource index being identical to the first resource index during a third period following the second period, and determines at least one CID to be used for D2D communication between the transmitting device and the receiving device based on the generation information.04-18-2013
20130114577METHODS OF MULTIPLE POINT HSDPA TRANSMISSION IN SINGLE OR DIFFERENT FREQUENCIES - Disclosed herein are methods and systems for uplink control feedback design in relation to the high speed dedicated physical control channel (HS-DPCCH). First uplink data may be transmitted on a HS-DPCCH to a first serving cell and a second serving cell, where the first serving cell may be used as a timing reference cell for the uplink transmission. The first serving cell may be associated with a first NodeB and the second serving cell may be associated with a second NodeB. First downlink data may be received from the first serving cell and second downlink data may be received from the second serving cell. A timing reference for uplink transmission may be changed such that the second serving cell may be used as the timing reference cell. Second uplink data may be transmitted on the HS-DPCCH using the second serving cell as the timing reference cell.05-09-2013
20130094478MULTICASTING METHOD AND SYSTEM - Technologies are generally described for providing multicasting services. In some examples, a method performed under control of a first user equipment may include receiving a first level of signal and a second level of signal from a base station during a first time slot and transmitting the second level of signal to a second user equipment during a second time slot.04-18-2013
20130100941COMMUNICATION METHOD - A method for a node to transmit data in a telecommunications network is disclosed. In one method aspect, it comprises, selecting a time slot j in a window having a plurality of time slots and preceding a transmission period, listening to time slots preceding the time slot j, wherein the transmission period presents a plurality of transmission channels. Furthermore, the method comprises counting a number of time-slot transmissions during the time slots preceding the time slot j wherein when the number of time-slot transmissions is greater than a threshold, the data transmission is postponed or cancelled. Furthermore, when the number of time-slot transmissions is less than or equal to the threshold, a transmission is made during the time slot j, and one of the transmission channels is determined as a function of said number of time-slot transmissions.04-25-2013
20130114581CELLULAR COMMUNICATION SYSTEM, COMMUNICATION UNITS, AND METHOD FOR BROADCAST AND UNICAST COMMUNICATION - A method and apparatus supporting broadcast and unicast transmissions in a wireless communication system including plural communication cells. A first method includes: supporting one broadcast transmission in one sub-frame of a physical resource; the one broadcast transmission includes broadcast data using a first cell identifier and supporting transmission of unicast control information using a second cell identifier in the one sub-frame of the physical resource, the first and second cell identifiers being different. A second method includes: supporting one time discontinuous broadcast transmission in one sub-frame of a radio frame of a physical resource; and supporting transmission of unicast control information in plural time-continuous sub-frames of the radio frame of the physical resource; the one sub-frame used for the one time discontinuous broadcast transmission including a first duration less than a second duration used in the plural sub-frames of the radio frame for transmitting unicast control information.05-09-2013
20130100936Scheduling of a Communication Base Station - The present invention relates to a method of a base station, the method comprising: obtaining information about a service currently used by a communication terminal associated with the base station; performing predictive scheduling of transmissions from the communication terminal to the base station based on the obtained information, the predictive scheduling including determining an interval I which is the predicted maximal time period between consecutive transmission grants sent by the base station to the communication terminal; sending a first transmission grant to the communication terminal at the time t=0 in accordance with the predictive scheduling; sending a first SR inhibiting indicator to the communication terminal, preventing the communication terminal from sending a Scheduling Request (SR) to the base station unless a specified criterion is fulfilled; and sending a second transmission grant to the communication terminal at the latest at the time t=I. The invention also relates to the base station.04-25-2013
20130100938APPARATUS FOR PERFORMING UPLINK SYNCHRONIZATION IN MULTIPLE COMPONENT CARRIER SYSTEM AND METHOD THEREFOR - There are provided an apparatus for performing uplink synchronization in a multiple component carrier system and a method thereof. The method includes determining whether a timing advance value for adjusting uplink timing of a secondary serving cell is valid, entering a transmission holding mode in which the secondary serving cell holds uplink transmission, and determining a releasing condition of releasing the transmission holding mode is satisfied. The timing advance value is secured and the validity of the timing advance value is determined so that it is possible to prevent uplink interference from being generated due to a difference in timing advance values and to prevent capability from deteriorating due to the uplink interference.04-25-2013
20130100940SHARED UPLINK NOTIFICATION BURSTS (SUNB) - A mobile station (MS) operating within a radio network includes a processing unit having an active mode and an inactive mode. The mobile station includes a transmitter in communication with the processing unit. The mobile station includes a memory in communication with the processing unit for storing uplink payload. The mobile station includes a radio interface in communication with the radio network and the transmitter; when there is uplink payload to transmit when the processing unit is in the inactive mode, the transmitter transmitting an activity indication to a base station over the radio interface, the processing unit changing to active mode, and the transmitter transmitting the uplink payload to the base station over the radio interface. A method for a mobile station operating within a radio network. A method for a base station operating within a radio network.04-25-2013
20130100937WIRELESS STATION, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A wireless station includes a receiver configured to receive a packet, a processor configured to set a retransmission start time of a packet transmitted to another wireless station based on the received packet, and a transmitter configured to control transmission of a packet that is the same as the transmitted packet in accordance with whether a response signal responsive to the transmitted packet is received before the set retransmission start time is reached.04-25-2013
20130100939METHOD AND APPARATUS FOR LAYER 2 ARQ FOR PACKETS - A method and a transmitter are provided for performing packet ARQ in a communication system. A first RLC PDU is generated. The first RLC PDU includes polling information having a predetermined bit, when there is no subsequent RLC PDU transmission after transmission of the first RLC PDU. A timer is started or restarted when the first RLC PDU is transmitted to a receiver. The polling information having a predetermined bit is transmitted when the timer expires.04-25-2013
20130114580WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD - A wireless communication device for communicating with at least a lower-level device, the communication device comprising a beacon signal generator for generating beacon signals used for synchronizing a clock of the lower-level device, and a beacon transmitter for transmitting the beacon signals generated by the beacon signal generator to the lower-level device at regular time intervals. The beacon signal generated by the beacon signal generator include a beacon identification code, the beacon identification code is shorter in code length than a communication identification code of the own device, and at least a part of the beacon identification code includes a code generated arbitrarily by the beacon signal generator.05-09-2013
20130128869WIRELESS NETWORK COMMUNICATION SYSTEM AND METHOD - A communication system comprising one or more wireless stations programmed to await for an authorizing signal to initiate wireless communications with a network controller or access point. The network controller maintains identification information in different queues, and polls stations from those queues. The wireless station identification information may be moved between the different queues in response to wireless station activity. Between polling, each mobile station aggregates data for the next opportunity to transmit. Multi-polling may be employed such that more than a single station is polled at a time. Polling is accomplished by polling one of the more stations from each queue having the effect that stations in one queue are polled more often than those in another queue. If a lesser active station becomes active, it may be moved into the shorter queue and consequently will be polled more often.05-23-2013
20130128872RANDOM TIMING OFFSET DETERMINATION - Methods, systems and instructions stored on computer-readable media for generating, at a first node, a plurality of data units. The plurality of data units are spread with a common pseudo-noise (PN) code that is used by a plurality of nodes, including the first node and a second node, that are in communication with an access point. A random timing offset is determined, and a first data unit is transmitted to the access point at a first time based upon a slot start time and the random timing offset. The first data unit is transmitted while at least a portion of a second signal is transmitted from the second node such that both the first data unit and the second signal are received by the access point. The second signal is transmitted at a second time based on the slot time and a second random timing offset.05-23-2013
20130128870METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS NETWORK - A method for transmitting data in a transmitting device of a wireless network comprises transmitting one or more data packets to a receiving device via a reserved region comprising channel resources allocated by a coordinator, and transmitting channel time extension information for requesting channel time extension to the receiving device, in order to transmit the data packets on an unreserved region in which the coordinator does not allocate channel resources to any devices.05-23-2013
20130128867System and Method for Communications Link Control - A method for operating an access point includes receiving information from a first station configured to operate in a non-transmit-indicator-map (TIM) mode, and determining if downlink data intended for the first station is available at the access point. The method also includes transmitting at least one of the downlink data intended for the first station to the first station, a data indicator indicating that the downlink data intended for the first station is available at the access point, information indicating downlink data is available for the first station, and a time indicator indicating a specific time when the downlink data intended for the first station will be sent to the first station.05-23-2013
20130128868SYNCHRONIZING DATA TRANSMISSION BETWEEN A WIRELESS NETWORK AND A WIRED NETWORK - Methods, systems and computer program products to synchronize timing of data transmissions between wireless and wired networks using a combined wireless gateway and cable modem are provided herein. The method includes the step of generating an indicator prior to a look-ahead time period and transmitting a poll to a wireless device upon sending the indicator. The look-ahead time period is a time period from transmitting the indicator to transmitting the DOCSIS frame. The method further includes the step of receiving data from the wireless device and encapsulating the data in a DOCSIS format to generate a DOCSIS frame. The method also includes transmitting the DOCSIS frame at a start of a next transmit opportunity to a cable modem termination system (CMTS).05-23-2013
20100278154HANDLING RESOURCES IN A COMMUNICATIONS NETWORK - A method and apparatus for managing Time Division Multiplex resources for a pool of Mobile Switching Centre Servers in a communications network. Time Division Multiplex resources are provided at a Media Gateway function serving the pool of Mobile Switching Centre Servers. Virtual Time Division Multiplex resources are allocated to each Mobile Switching Centre Server in the pool and mapped to the Time Division Multiplex resources. An ISUP signalling proxy function may be provided at the Media Gateway function. TDM resources are allocated to at least one Mobile Switching Centre, and associated with an identifier of the Mobile Switching Centre Server. The TDM resources are mapped to the Time Division Multiplex resource identifier. When the media Gateway receives an ISUP message, it replaces the identifier with an ISDN User Part signalling proxy function identifier before sending the message to a node in an external network.11-04-2010
20130176997Air-Interface Timing Synchronization Sharing - The invention discloses a timing synchronization method in a User Equipment (UE) which is served in a first cell of a first synchronous communication network and also located in a second cell of a second synchronous communication network. The method comprises receiving a message from a communication node of the first network, the message including clock offsets of the first cell and the second cell or timing difference there between, and calculating downlink synchronization of the second cell from downlink synchronization of the first cell and the clock offsets/timing difference.07-11-2013
20130176996WIRELESS BASE STATION AND WIRELESS COMMUNICATION METHOD - A resource determination unit determines at least a part within any downlink subframe as a first resource and determines at least a part of an UpPTS (Uplink Pilot Timeslot) or a part of an uplink subframe as a second resource for transmitting an SRS (Sounding Reference Signal). A transmission path state estimation unit estimates a state of a transmission path to a wireless terminal based on a DRS (Demodulation Reference Signal) included in uplink user data after the first resource is determined and until it receives an SRS, and it estimates a state of the transmission path to the wireless terminal based on an SRS after it received the SRS.07-11-2013
20130176995METHOD AND DEVICE FOR ALLOCATING WIRELESS RESOURCES FOR A MACHINE TYPE COMMUNICATION DEVICE IN A WIRELESS COMMUNICATION SYSTEM - Provided are a method and device for allocating wireless resources in a wireless communication system. The wireless resource allocating method comprises allocating a machine type communication (MTC)-dedicated wireless resource and a general wireless resource, and communicating with at least one MTC device through the MTC-dedicated wireless resource. Herein, the MTC-dedicated wireless resource supports only the communication with the at least one MTC device, and the MTC-dedicated wireless resource and the general wireless resource may be different from each other.07-11-2013
20130176994CODED REVERSE LINK MESSAGES FOR CLOSED-LOOP POWER CONTROL OF FORWARD LINK CONTROL MESSAGES - A field unit includes circuitry configured to receive a signal and determine whether the received signal has a predetermined quality; circuitry configured to select a signal from a plurality of signals including a first signal indicating that the field unit is requesting an assignment of resources and the received signal was received with the predetermined quality, a second signal indicating that the field unit is requesting an assignment of resources and the received signal was not received with the predetermined quality, a third signal indicating that the field unit is not requesting an assignment of resources and the received signal was received with the predetermined quality, and a fourth signal indicating that the field unit is not requesting an assignment of resources and the received signal was not received with the predetermined quality; and circuitry configured to transmit the selected signal over a control channel.07-11-2013
20130176992Method and Apparatus for Application of Precoder Information at the UE in Closed Loop Transmit Diversity - Apparatus and methods are described herein for applying precoding information updates at a user equipment (UE). The UE receives precoder information from a network component. The UE can them transmit packet data over a transmit time interval (TTI) of tow or more slots using transmit diversity. The UE updates the precoder for transmit diversity with the precoder information in a slot subsequent to the first slot in the TTI. The precoder information is applied to update the precoder at a slot boundary within the TTI.07-11-2013
20130176991Method and Apparatus for Detecting Secondary Synchronization Signal - a method and apparatus for detecting a secondary synchronization signal, the method including: calculating a channel estimation compensation value of each sub-carrier of a Secondary Synchronization Signal (SSS) symbol in different Cyclic Prefix (CP) modes; obtaining coherent accumulative results of even half frames and odd half frames of each sub-carrier according to the channel estimation compensation value of each sub-carrier of said SSS symbol; generating a SSS sequence; obtaining an index of the SSS sequence corresponding to an over-threshold value of a first round detection, determining indexes composed of the SSS sequence used in a second round detection according to said index, using coherent accumulative results of all the sub-carriers in the even and odd half frames and SSS sequences of all the sub-carriers to obtain an over-threshold value of the second round detection; and obtaining a CP mode, and calculating a cell ID and a radio frame boundary.07-11-2013
20090262711Method of scheduling an uplink packet transmission channel in a mobile communication system - A method of scheduling an uplink packet transmission channel in a mobile communication system is disclosed. The method of scheduling includes determining a scope of user equipments (UEs) to be applied to a scheduling assignment for scheduling the uplink packet transmission channel, and transmitting the scheduling assignment to the user equipments included in the determined scope, wherein the scheduling assignment includes an identifier for identifying the scope of the user equipments and scheduling contents for carrying information applicable to the scheduling assignment.10-22-2009
20110222513METHOD FOR POSITIONING MOBILE STATION - A method for positioning a Mobile Station (MS) is provided. The method includes transmitting, by a serving base station of a MS, indication information of a Location Based Services (LBS) zone to the MS receiving, by the MS according to the indication information, a reference signal used for positioning the MS in the LBS zone from a base station of a neighboring cell, wherein the LBS zone is multiplexed with a control information field in N downlink subframes, or with the control information field and a data field in the N downlink subframes, and wherein N is larger than or equal to 09-15-2011
20080198815Nearly Collision-Free Channel Access System and Method - Techniques for controlling access to a communication channel for each of a plurality of nodes in a wireless ad hoc communication network. According to one embodiment, each node uses a predetermined rule, such as a hash function, to compute which of a plurality of time slots during a contention window it is to attempt transmissions. Each node in the network follows the same rule to access the channel and as a result no additional overhead transmissions are required between the nodes. In addition, contention among different nodes is reduced when a node needs to repeat an attempt to make a transmission. When a node has data to transmit on the channel, it determines a time slot in the contention window period during which to attempt the transmission using a computation that is based on a number identifier assigned to the node, the number of time slots in the contention window period and a transmission count value that represents the number of attempts the node has made to make the transmission. According to another embodiment, nodes are assigned to slot groups based on the time slot computation and the groups are assigned to particular slots during successive blocks in a round robin fashion so as to ensure fair access to the communication channel.08-21-2008
20080198814Mapping Of Shared Physical Channels Depending On The Quality Of Service Class - A method, a base station and a wireless communication system are provided which allow to provide optimized Quality of Service to each of a plurality of services belonging to different QoS classes and different users, transmitted over shared physical channels. Data packets are assigned to service categories. To each service category only packets are assigned exclusively belonging to services associated with one user or user group and exclusively belonging to one of said Quality of Service classes. Based on information about the packets, the service categories and/or the shared physical channels, scheduling metrics are calculated, based upon the scheduling metrics, it is decided which of said service categories is to be served next.08-21-2008
20110235620METHOD AND APPARATUS OF TRANSMITTING CONTROL INFORMATION - A wireless communication system is disclosed herein. More specifically, a method of transmitting control information from a user equipment in a wireless communication system is disclosed, wherein the method includes receiving a first transmission timing information for transmitting a first control information associated with one or more first downlink component carriers from a base station; determining a second transmission timing information for transmitting a second control information associated with one or more second downlink component carrier by using the first transmission timing information and an additional transmission timing information; and transmitting control information on the one or more second downlink component carriers in dependence upon the second transmission timing information to the base station.09-29-2011
20130148638SCHEDULING METHOD AND DEVICE - The present invention discloses a scheduling method and a device, which may avoid a conflict between scheduling performed by a first system on a UE and using, by the UE, a second system on a frequency band adjacent to a frequency band of the first system, such as receiving or sending, by the UE, data or a message of the second system. In this way, the problem of mutual interference in message reception and transmission that are performed by the UE in two systems on adjacent frequency bands is solved.06-13-2013
20130148636Wireless electronic device with antenna switching circuitry - A wireless electronic device may include antennas formed at different locations on the device. The wireless electronic device may include transceivers that are used to wirelessly communicate in different frequency bands by transmitting and receiving radio-frequency signals in the frequency bands. The transceivers may include Wi-Fi® transceivers and cellular transceivers such as Long Term Evolution transceivers. The wireless electronic device may include antenna switching circuitry interposed between the transceivers and the antennas. The wireless electronic device may include control circuitry that controls the antenna switching circuitry to ensure that radio-frequency transmissions in adjacent frequency bands are routed to different antennas. By routing radio-frequency transmissions in adjacent frequency bands to different antennas, self-interference between communications in the adjacent frequency bands may be reduced. Self-interference may also be reduced by performing time division multiplexing to isolate radio-frequency signals that are transmitted in adjacent frequency bands.06-13-2013
20120257602MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - Even when radio base stations including radio base station identification information eNB IDs having different lengths are coexistent, it is possible to perform an S10-11-2012
20120275440METHOD OF DOWNLINK HARQ OPERATION AT AN EXPIRY OF TIME ALIGNMENT TIMER - According to one embodiment, a method of processing data for a Hybrid Automatic Repeat Request (HARQ) operation in a wireless communication system includes: receiving control signaling from a network; receiving data based on the received control signaling; generating a positive response message (ACK) if the received data is successfully decoded or a negative response message (NACK) if the received data is not successfully decoded, wherein the generated ACK or the generated NACK is not transmitted to the network when a timer is expired or not running; and combining the received data with data currently in a buffer after the timer is stopped or expired.11-01-2012
20120275439POWER BOOSTING IN A WIRELESS COMMUNICATION SYSTEM - Method and apparatus for power boosting a portion of installments in transmission of a packet of data. The power boosting incorporates a power boost factor for each installment. On receipt of a negative acknowledgement after the power boosted portion of installments, transmission of the subpacket is terminated, and processing passed to a higher layer.11-01-2012
20120275438Method for Wireless Resource Scheduling, Network Element of Access Network and Terminal Thereof - Disclosed in the present invention is a radio resource scheduling method, including: a network element in an access network acquiring uplink (UL) data feature information corresponding to a service supported by a terminal; the terminal waiting for an UL resource scheduling signaling of the network element in the access network when judging that an initiated service is regular or predictable; the network element in the access network sending the UL resource scheduling signaling to the terminal to carry out UL resource scheduling on the terminal according to the UL data feature information corresponding to the service initiated by the terminal when the service initiated by the terminal is regular or predictable. Also disclosed in the present invention are a network element in an access network element and a terminal. The present invention enables the UL resource scheduling to save more control signaling, improving the radio spectrum efficiency and system throughput.11-01-2012
20120275437METHOD AND APPARATUS OF UTILIZING UPLINK SYNCHRONIZATION SHIFT COMMAND BITS IN TD-SCDMA UPLINK TRANSMISSION - Certain aspects of the present disclosure propose techniques for utilizing synchronization shift (SS) bits in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) based uplink communications. The SS bits can be used for various purposes different from indicating timing of transmissions from a Node B to a user equipment.11-01-2012
20120275436METHOD AND APPARATUS OF PROCESSING SYNCHRONIZATION SHIFT COMMANDS IN TDSCDMA UPLINK SYNCHRONIZATION - Certain aspects of the present disclosure propose techniques for processing received downlink synchronization shift commands for timing adjustments of uplink transmissions in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) wireless systems.11-01-2012
20100303044SYSTEM AND METHOD FOR CREDIT-BASED CHANNEL TRANSMISSION SCHEDULING (CBCTS) - Credit based channel transmission scheduling (CBCTS) of packet data units (PDUs) on a downlink channel is provided based on priority, quantity, and timing efficiency. The CBCTS technique includes initializing a set of credit accounts with a set of credit values. Credit accounts are sorted to determine the account having the highest number of credits. An account is selected from the set having an associated PDU type that is ready for transmission and has a size that fits within a MAC block. The selected PDU is inserted into the MAC block. The cost associated with the inserted PDU is subtracted from the credits. The selected PDU size is subtracted from the MAC block size, and a determination is made as to whether there is free space remaining on the MAC block for insertion of additional PDUs. If so, another sort and search is performed prior to transmission on the downlink channel.12-02-2010
20100316028Systems and Methods for Dynamic Aggregation of Bandwidth - Systems and methods are presented for the dynamic aggregation of communications network bandwidth. Communication devices are bonded in a community in which the communication resources of a bonded device can be used to transfer data on behalf of another bonded device. In an exemplary embodiment, communication devices are bonded wirelessly to share wireless wide area network communication channels. Bandwidth aggregation is performed dynamically based on user communication requirements and the current states of the bonded communication devices. Methods are presented by which communication devices can be automatically bonded when a predetermined bonding condition is satisfied. The methods and systems of the invention optimize utilization of communication resources in a cost-effective manner that provides a user high quality service as well as location mobility.12-16-2010
20100316027METHOD AND APPARATUS FOR DYNAMIC AND DUAL ANTENNA BLUETOOTH (BT)/WLAN COEXISTENCE - An apparatus and method are disclosed for effectively and efficiently arbitrating concurrent usage between WLAN and Bluetooth access technologies for co-located wireless devices. A state level arbiter determines state and relevant parameters of a WLAN module and of a Bluetooth module of a wireless transceiver unit. The state level arbiter uses the state and relevant parameters to determine which access technology (WLAN or Bluetooth) or combination of the access technologies (WLAN or Bluetooth) will provide the best concurrent performance for wireless transmissions at a given time for specific Bluetooth states and WLAN states.12-16-2010
20100316026METHOD OF MANAGING CARRIERS IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for managing carriers allocated to a mobile station in a broadband wireless access system supporting multiple carriers, and an apparatus for use in the method are disclosed. A carrier management method for allowing a mobile station to perform carrier management in a broadband wireless access system supporting multiple carriers includes receiving a first message, which includes activation information indicating activation of at least one target carrier from among one or more second carriers allocated through a first carrier, from a base station, and transmitting a second message, which informs the base station of readiness or non-readiness of the at least one target carrier according to a result of the activation, to the base station. The activation information includes information indicating an activation time point, and the transmitting of the second message is performed at a specific time indicated by the activation time point information.12-16-2010
20100316025Sharing a Frequency Band Between Different Radio Communications Protocols - A method including enabling a first mode of a first radio communications protocol using a shared radio frequency band and having a first defined schedule for communication in the shared radio frequency band; enabling a second mode of a second radio communications protocol using the shared radio frequency band and having a second defined schedule for communication in the shared radio frequency band; and enabling the first mode and disabling the second mode at a conflict time at which the first defined schedule and the second defined schedule coincide.12-16-2010
20130156017TERMINAL APPARATUS FOR TRANSMITTING OR RECEIVING A SIGNAL INCLUDING PREDETERMINED INFORMATION - A reception unit periodically receives a packet signal from a base station apparatus in each of two or more subframes in a superframe formed by time-multiplexing the subframes. An analysis unit gives a priority order to a subframe receiving the packet signal from the base station apparatus based on the packet signal received in the reception unit. A processing unit preferentially processes the packet signal received in the subframe with a high priority order among the priority orders given in the analysis unit.06-20-2013
20130156012WIRELESS COMMUNICATION DEVICE AND METHOD FOR IMPROVED WIFI AND BLUETOOTH COEXISTENCE USINGREDUCED POWER FOR CONTROL PACKETS - Disclosed in some examples is a method including receiving a downlink data packet over a first wireless link using a first wireless protocol during communications over a second wireless link using a second wireless protocol the first and second wireless protocols being different; and sending a control packet in response to the downlink data packet over the first wireless link using a reduced power setting during the communications over the second wireless link, the reduced power setting being less than a non-control packet power setting.06-20-2013
20130156013USER EQUIPMENT REFERENCE SIGNAL-BASED TIMING ESTIMATION - Estimation of timing errors is disclosed that uses user equipment reference signals (UERSs). A UE models each channel in a user equipment reference signal (UERS) as a channel on an adjacent UERS tone multiplied by a phase ramping term. This phase ramping term is determined using an estimator on the modeled channels. The UE then determines the equivalent timing error by mapping the phase ramping terms into the estimated timing errors in the time domain. In coordinated multipoint (CoMP) systems, the UERS-based timing error may be used to identify an aligned common reference signal (CRS) associated with the network entity transmitting the data. With this determination, the UE may estimate a CRS-based timing error and either substitute the CRS-based timing error for the UERS-based timing error or calculate a further average timing error based on both the CRS-based and UERS-based timing errors.06-20-2013
20130156014METHOD FOR TRANSMITTING AN SRS-TRIGGERING-BASED SRS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and terminal apparatus which involve transmitting a sounding reference signal (SRS)-triggering-based SRS in a wireless communication system. The terminal apparatus of the present invention comprises a receiver which receives, from a base station, an SRS-triggering indicator for triggering an SRS transmission; and a transmitter which transmits the SRS via a preconfigured uplink subframe in accordance with the SRS-triggering indicator.06-20-2013
20130156016WIRELESS NETWORK SYSTEMS - Several wireless network systems are disclosed. In an embodiment, a wireless network system includes at least two access points and a distributed set of devices communicatively associated with the at least two access points. Each device from among the distributed set of devices comprises a pair of wireless stations and each wireless station from among the pair of wireless stations is configured to transmit data associated with an alert situation to a distinct access point from among the at least two access points. A communication between one or more access points from among the at least two access points and one or more wireless stations from among the pairs of wireless stations corresponding to the distributed set of devices is synchronized based on a timing synchronization information shared by at least two basic service sets (BSSs) corresponding to the at least two access points.06-20-2013
20130156015BASE STATION APPARATUS, MOBILE TERMINAL APPARATUS AND COMMUNICATION CONTROL METHOD - Provided are a base station apparatus, a mobile terminal apparatus and a communication control method capable of selecting a CSI-RS arrangement flexibly in accordance with a system configuration. The base station apparatus has a CSI-RS arrangement section (06-20-2013
20120281682Method and Apparatus for Improving Synchronization Shift Command Transmission Efficiency in TD-SCDMA Uplink Synchronization - A method of wireless communication includes receiving a signal associated with a frequency for adjusting timing and adjusting the timing based on the frequency. The frequency is less than once every 8 subframes.11-08-2012
20120281681BASE STATION AND UPLINK TRANSMISSION METHOD THEREOF - A base station and an uplink transmission method thereof are provided. The base station receives a plurality of first uplink transmission requests of a plurality of first wireless devices of a first group and a plurality of second uplink transmission requests of a plurality of second wireless devices of a second group in a first time interval, and approves one of the second uplink transmission requests. The base station receives second uplink transmission data of the second wireless device corresponding to the approved second uplink transmission request in a second time interval behind the first time interval. The base station receives the second uplink transmission requests of the second wireless devices corresponding to the unapproved second uplink transmission requests in a third time interval behind the second time interval.11-08-2012
20120281680Prohibition Of Sounding Reference Signal Transmission On Newly Activated Secondary Cells - In a wireless network supporting aggregation of uplink component carriers, sounding reference signals, SRS, are transmitted (11-08-2012
20120281683Interference Mitigation in Downlink Signal Communication to a Mobile Terminal - In downlink signal communication to a mobile terminal (11-08-2012
20130182691Method of and Base Station for Configuring a Data Transmission Scheme Based on Data Frames in a Communication Network - A method of configuring a data transmission scheme based on data frames in a communication network is provided, wherein communication in the communication network includes a data transmission including downlink and uplink data transmissions via first and second data transmissions paths, the first and second data transmission paths including respective first and second downlink data transmission paths and respective first and second uplink data transmission paths, the downlink data transmission via the second data transmission path being delayed to the downlink data transmission via the first downlink data transmission path, the method being executed by a base station, the method including configuring the data transmission scheme such that a reduction of a base station processing time associated with processing payload data of the data transmission is prevented07-18-2013
20130182690Carrier Selection - The invention relates generally to mobile communication networks. More particularly, the invention relates to interference management and carrier selection for transmitting data. There is provided a solution for improved selection of a cell-specific base carrier, the solution utilizing a timing framework for the carrier selection. The solution includes determining a maximum allowed time duration, and performing within the determined maximum allowed time duration: obtaining information related to one or more selected carriers from at least one neighboring base station, selecting the at least one cell-specific base carrier for data transmission on the basis of the obtained information, and informing the at least one neighboring base station of the selected cell specific base carrier.07-18-2013
20130182692Method and User Equipment for Transmitting Feedback Information - A method for transmitting feedback information and a user equipment are disclosed in the present document, wherein, one method includes: a User Equipment (UE) performing time domain extension on feedback information within one subframe; and mapping respectively data which go through the time domain extension and demodulation reference signals corresponding to the data which go through the time domain extension to multiple uplink Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols within the subframe, and transmitting the data which go through the time domain extension and the demodulation reference signals corresponding to the data which go through the time domain extension in the same frequency domain position in a way of time division multiplexing; wherein, each uplink SC-FDMA symbol occupies n successive physical resource blocks in the frequency domain, and n is a positive integer.07-18-2013
20130182686OPTIMIZATION OF DUAL BSS SCHEDULING - An integrated circuit includes logic configured to determine a communication schedule of a device configured to perform Wi-Fi communications in a first Basic Service Set (BSS) network and in a second BSS network. The logic determines the communication schedule based at least in part on a first BSS network communication load of the device and on a second BSS network communication load of the device. The communication schedule defines the service time allocation of the device in the first BSS network and the service time allocation of the device in the second BSS network. At least one of the first and the second BSS networks is supportive of a peer-to-peer connection.07-18-2013
20130182685Uplink Control Signal Design for Wireless System - The present disclosure generally relates to an uplink control signal design for wireless system. One example method includes establishing communication with a mobile station in a multi-carrier wireless communication system using a primary carrier, providing a first control signaling via the primary carrier, the first control signaling assigning at least one secondary carrier, and receiving a channel quality indication of the secondary carrier via the primary carrier using a control channel.07-18-2013
20110310861System and Method for Timing Synchronization - The present disclosure relates generally to systems and methods for timing synchronization. Uplink synchronization is a necessary component of a UE operating in a mobile, wireless network. Reliable uplink synchronization generally requires regular uplink transmission containing reference signals. A method is provided that defines a burst period for sending the reference signals, determines an interval between the reference signals, and sends a timing instruction message that includes the burst period and the determined interval. A second method is provided that receives the timing instruction message and sends the reference signals in accordance with the timing instruction.12-22-2011
20110310860METHOD FOR CONTROLLING MEDIUM ACCESS N A MESH NETWORK USING ALLOCATION VECTORS AND STATION CARRYNG OUT SUCH METHOD - The present invention relates to Method for controlling medium access in a mesh network comprising the following steps: a station of the network receiving a Network Allocation Vector (NAV) setting frame indicating a period of time during which the station cannot access the medium,—the station setting a Network Allocation Vector expiration timer based on the received setting frame, the station detecting a least one reservation made by two other stations in the network, and setting a respective Reservation Allocation Vector (RAV) expiration timer based on the duration of the detected reservation, and storing the identity of the two stations as owners of the reservation, the station updating the NAV expiration timer as the latest of the NAV expiration time of the NAV setting frame and all set respective RAV expiration timers.12-22-2011
20110310856HARQ ACK/NACK FOR DYNAMIC PDSCH - The aim of the present invention is to provide an efficient and reliable transmission/reception mechanisms for a communication system with multiple component carriers, each of which further includes physical resources such as transmission slot/symbol, subcarrier/frequency subband, code, or radiation pattern. Accordingly, the control signal of a component carrier comprises a scheduling assignment specifying for said component carrier a resource for transmission of a data signal, and an allocation map specifying that a scheduling assignment has been sent for another component carrier. Signalizing the allocation map enables detection of possibly missed scheduling assignments.12-22-2011
20110310855UPLINK CONTROL INFORMATION (UCI) MULTIPLEXING ON THE PHYSICAL UPLINK SHARED CHANNEL (PUSCH) - A method for multiplexing uplink control information (UCI) on a physical uplink shared channel (PUSCH) is described. Control data is coded with user data repetition. The coded control data is mapped to a PUSCH resource. A data block base for the coded control data is also mapped in the PUSCH resource. The UCI may include channel quality indicators (CQI)/precoding matrix indicators (PMI), acknowledgement/negative-acknowledgement (ACK/NACK) and rank indicators (RI).12-22-2011
20110310854METHOD OF DETERMINING ACCESS TIMES FOR WIRELESS COMMUNICATION DEVICES - The present invention provides a method of determining access times for a wireless committee case in device. One embodiment of the method includes selecting one of a plurality of time intervals in a periodically repeating access cycle for transmission of an access request. The selection is performed based on information identifying the wireless communication device. This embodiment of the method also includes transmitting the access request over a random access channel in the selected one of the plurality of time intervals.12-22-2011
20130188609COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND CONTROL DEVICE - A communication system includes: a plurality of mobile stations each of which performs wireless communication with a base station; a plurality of base stations each of which selects, for each transmission timing, a mobile station which performs wireless communication for transmission of a radio signal with the base station, from mobile stations that are coupled to the base station among the plurality of mobile stations; and a control device that calculates, for each transmission timing, a parameter for each of a communication source in the transmission of the radio signal, the parameter being calculated so that a communication quality of each of the mobile stations selected for the transmission timing by each of the plurality of base stations satisfies a certain condition; wherein the each of the communication source transmits the radio signal at each transmission timing, using a parameter for the communication source calculated by the control device.07-25-2013
20130188610One or multiple bit restricted access window (RAW) end point determination within for single user, multiple user, multiple access, and/or MIMO wireless communications - One or multiple bit restricted access window (RAW) end point determination within for single user, multiple user, multiple access, and/or MIMO wireless communications. A RAW is defined in which only devices of the particular class (e.g., low power class, Z class, smart meter station (SMSTA) class, etc.) are allowed access to the communication medium. Indication of the end of such a RAW may be included within one or more bits set within a signal field (SIG) field of a framer packet generated by a given device within the system and transmitted to one or more other devices. After completion of the RAW, other respective devices of at least one other type of class may be provided access to the communication medium. The manner of access to the communication media outside of the RAW may be varied (e.g., scheduled, based on carrier sense multiple access/collision avoidance (CSMA/CA), etc.).07-25-2013
20130188619Secondary Cell Sounding Transmission - A wireless device receives message(s) configuring transmissions of sounding reference signals on a secondary cell in a secondary cell group. The wireless device receives an activation command to activate the secondary cell. The wireless device transmits the sounding reference signals if the secondary cell is activated, a timing advance command is applied to the secondary cell group, and a time alignment timer for the secondary cell group is running. The wireless device is configured to not transmit the sounding reference signals on the secondary cell during the period between receiving the activation command and applying the timing advance command.07-25-2013
20130188621NEIGHBOR DISCOVERY IN A WIRELESS SYSTEM - Beacons may be grouped to facilitate neighbor discovery in a wireless network. For example, neighboring access devices such as IEEE 802.11 access points may cooperate to transmit beacons in a group. In this way, a wireless device seeking to discover the neighboring access devices may scan for the beacons for a shorter period of time. An indication may be provided to enable a wireless device to more efficiently scan the beacons. For example, the indication may indicate the channel the wireless device should scan to receive the next beacon that is to be transmitted. In addition, the indication may include information relating to the transmission time of the next beacon. Other aspects, embodiments, and features are also claimed and described.07-25-2013
20130188611SUBFRAME CONSTRAINTS FOR COORDINATED MULTI-POINT COMMUNICATION - Certain aspects of the present disclosure relate to methods, and corresponding apparatus and program products, for wireless communication involving coordinated multipoint (CoMP) operation that involves dynamic switching between multiple transmission points that serve a user equipment (UE).07-25-2013
20130188612Random Access Process in a Multicarrier Base Station and Wireless Device - A Base station transmits a control command for transmission of a random access preamble on a first cell if the base station determines radio resources of the first cell are required for transmission of a portion of data and that the first cell requires a different uplink timing from all currently activated cells of the wireless device. The base station transmits at least one control packet for providing transport format information and resource allocation information for transmission of a plurality of packets of the data to be transmitted on a first data channel of the first cell.07-25-2013
20130188613Configuring Base Station and Wireless Device Carrier Groups - A base station transmits control message(s) to a wireless device configuring secondary cell(s). Each of the secondary cells is assigned to a cell group in a plurality of cell groups comprising a primary cell group and at least one secondary cell group. The control message(s) comprise dedicated parameters. If dedicated parameters comprise a cell group index for the secondary cell, the wireless device assigns the secondary cell to one of the at least one secondary cell group identified by the cell group index. Otherwise, the wireless device assigns the secondary cell to the primary cell group.07-25-2013
20130188614Pathloss Reference Configuration in a Wireless Device and Base Station - A base station transmits message(s) assigning each of at least one secondary cell to a cell group in cell groups comprising a primary cell group and a secondary cell group. The at least one message comprises a pathloss reference for a secondary cell. The pathloss reference is a configurable parameter if the secondary cell is in the primary cell group. The configurable parameter is configurable to a downlink of the secondary cell or the primary cell. The pathloss reference is only configurable as a downlink of the secondary cell if the secondary cell is in the secondary cell group.07-25-2013
20130188615Multicarrier Wireless Communications Reference Cell - A base station configures a primary cell group and at least one secondary cell group in a wireless device. The wireless device transmits first uplink signals in the secondary cell group employing a reference secondary cell in the secondary cell group as a timing reference. The wireless device autonomously selects a new activated secondary cell in the secondary cell group as the timing reference. The new activated secondary cell is different from the reference secondary cell. The wireless device transmits second uplink signals in the secondary cell group employing the new activated secondary cell as the timing reference.07-25-2013
20130188616Random Access in Networks with Carrier Aggregation - A wireless device configures a deactivation timer for a secondary cell in a secondary cell group. The wireless device may receive a control command initiating a random access process for the secondary cell. The wireless device may transmit a random access preamble on random access resources of the secondary cell in response to receiving the control command. The wireless device may abort the random access process on the secondary cell if the secondary cell is deactivated before the wireless device receives, on the primary cell, a random access response for the random access preamble transmission.07-25-2013
20130188617Time Alignment Timer in Multicarrier Communications - A wireless device is configured with a primary cell group and a secondary cell group. When a first time alignment timer of the primary cell group expires, for each cell in the wireless device, the wireless device stops uplink transmission of HARQ feedback, uplink transport blocks, and channel state information. When a second time alignment timer of the secondary cell group expires and the first time alignment timer is running, for each activated cell in the secondary cell group, the wireless device stops transmission of uplink transport blocks, and continues transmission of HARQ feedback and channel state information.07-25-2013
20130188620Wireless Device for Multicarrier Communications - A wireless device establishes a first signaling bearer with a base station on a primary cell. The establishment of the signaling bearer comprises the wireless device receiving a control message from the base station on the primary cell in a plurality of cells comprising the primary cell and at least one secondary cell. The wireless device transmits radio capability parameters to the base station on the first signaling bearer on the primary cell. The radio capability parameters comprise at least one parameter indicating whether the wireless device supports a timing advance groups.07-25-2013
20130188623Method and Apparatus for Transmitting Periodic Feedback Report - Disclosed in the present invention are a method and an apparatus for transmitting a periodic feedback report. In this case, the method includes: coding a periodic feedback report to be transmitted and data information corresponding to a transmission block respectively, wherein the periodic feedback report includes one of the following information: a combined coding index of rank indicator (RI) information and first pre-coding matrix indicator (PMI-1) information, a combined coding index of the RI and pre-coding type indication (PTI) information, and the PMI-1; intercepting correspondingly coded information according to the target length; and when a transmission block corresponds to a single layer or multiple layers, carrying out channel interleave on the coded information on the single layer or multiple layers to be transmitted on the transmission block, and transmitting the interleaved information on a layer corresponding to a physical uplink shared channel (PUSCH).07-25-2013
20130188622METHOD OF CHANNEL RESOURCE ALLOCATION AND DEVICES IN WIRELESS NETWORKS - A method of allocating channel resources from a first device to a second device in a wireless network comprises receiving channel resource allocation information from a coordinator of the wireless network to allocate the channel resources; transmitting data to the second device through the allocated channel resources; receiving channel resource request information from the second device to request the first device to allocate a part of the allocated channel resources; and deciding whether to allocate the part of the channel resources allocated from the coordinator, to the second device in accordance with the channel resource request information.07-25-2013
20120014359Systems and Methods for Allocating and Transmitting Uplink Data Block Transmissions - Systems and methods for allocating and transmitting uplink data block transmissions with piggy-backed ACK/NACK bitmap field are provided. The systems and methods involve using a request for a DBCCI (Data Block Combined with Control Information) to allocate a timeslot for data transmission. A UADB (uplink allocation for data block) is not also used to allocate the timeslot.01-19-2012
20130195081COLLISION REDUCTION MECHANISMS FOR WIRELESS COMMUNICATION NETWORKS - A method includes wirelessly communicating with one or more stations that are partitioned into one or more groups. The method also includes generating a message that identifies one or more time periods during which each station of a first group of the one or more groups is permitted to contend for a communication channel or restricted from contending for the communication channel. The method further includes transmitting the message.08-01-2013
20130195082METHOD AND APPARATUS FOR IMPROVING COEXISTENCE OF SYNCHRONOUS AND ASYNCHRONOUS NODES IN A SYNCHRONOUS MAC SYSTEM - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be configured to determine a plurality of slots for transmitting information including a plurality of first type slots and a plurality of second type slots where the second type slots have a longer duration that the first type slots. The apparatus may be configured to transmit information in a first type slot when a previous reception was successful and there is no other transmission expected to occur during a gap preceding the first type slot and during the first type slot. Additionally or in the alternative, apparatus may be configured to transmit information in a second type slot when at least one of the previous reception was unsuccessful or there is another transmission expected to occur during a gap preceding the first type slot or during the first type slot.08-01-2013
20130195083MAIN HUB, SUB HUB, AND SENSOR NODE COMMUNICATING IN WIRELESS BODY AREA NETWORK (WBAN) INCLUDING AT LEAST ONE SUB HUB, AND COMMUNICATION METHOD THEREOF - A main hub, a sub hub, and a sensor node communicating in a wireless body area network (WBAN) including at least one sub hub, and a communication method thereof, are provided. A communication method of the main hub, includes assigning a beacon slot to the sub hub. The method further includes receiving, from the sub hub, a beacon signal based on the beacon slot. The method further includes verifying whether the sub hub includes data to be transmitted to the main hub based on the beacon signal. The method further includes receiving, from the sub hub, the data based on a result of the verification.08-01-2013
20130195084PHYSICAL LAYER ISSUES RELATED TO MULTI-TA GROUP SUPPORT - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may determine a number of uplink timing groups configured for a plurality of component carriers, and determine whether to transmit at least one of data or control information on one or more first component carriers of the plurality of component carriers concurrently with sounding reference signals (SRS) on one or more second component carriers of the plurality of component carriers based at least in part on the number of uplink timing groups. When only one uplink timing group is determined, the SRS is transmitted in a symbol on the one or more second component carriers if the data and control information is not transmitted in the symbol. When two uplink timing groups are determined SRS may be transmitted on the second component carriers concurrently with data or control information on the component carriers08-01-2013
20130195085METHOD AND APPARATUS FOR DISCOVERING A WIRELESS DEVICE IN A WIRELESS NETWORK - A method for synchronizing the discovery of wireless services or applications in a wireless network using a recurring time interval T in which wireless devices within the wireless network can be in one of a predetermined plurality of time states. The method includes selecting a time state from amongst the plurality of time states, performing discovery by a first wireless device supporting a given service or application once during the recurring time interval T at the selected time state, and repeating the above steps in successive ones of the recurring time interval T until all of the predetermined plurality of time states have been selected.08-01-2013
20130195086TIMING MANAGEMENT IN UPLINK (UL) COORDINATED MULTIPOINT (COMP) TRANSMISSION - According to example embodiments, a method for wireless communications by a user equipment (UE) includes receiving signaling indicating multiple timing adjustments (TAs) for different uplink channels between the user equipment (UE) and one or more transmission points, and applying at least one of the multiple TAs when transmitting on at least one of the uplink channels. According to example embodiments, a method for wireless communications by a base station includes determining multiple timing adjustments (TAs) for different uplink channels between the user equipment (UE) and one or more transmission points, and transmitting signaling indicating the multiple timing adjustments (TAs) to the UE.08-01-2013
20130195087METHOD AND APPARATUS FOR MULTIPLEXING MACHINE TYPE COMMUNICATION DATA OF MULTIPLE MTC DEVICES IN A WIRELESS NETWORK ENVIRONMENT - A method and a system of multiplexing Machine Type Communication (MTC) data of MTC devices over a single radio block period are provided. The method includes providing, by a base station, resource information to a plurality of MTC devices, where the resource information includes a time slot allocated to the plurality of MTC devices in each frame of a radio block period, a temporary flow identifier, and the sub-block index information. The method further includes packing MTC data associated with each of the plurality of MTC devices in a data packet. Furthermore, the method includes multiplexing the data packet including the MTC data associated with the plurality of MTC devices in downlink over the time slot allocated in each frame of the radio block period.08-01-2013
20120039307METHOD AND APPARATUS FOR PERFORMING CARRIER SWITCHING IN A WIRELESS COMMUNICATION SYSTEM USING MULTI-CARRIERS - A method and an apparatus for performing carrier switching in a wireless communication system using multi-carriers are provided. According to the method, a Mobile Station (MS) transmits a message including information on a time slot occupying status to a Base Station (BS), if a message for instructing to report the information on the time slot occupying status, is received from the BS, receives, from the BS, first information on at least one time slot scheduled by using the information on the time slot occupying status, identifies at least one time slot using the first information, and performs the carrier switching in the identified at least one time slot.02-16-2012
20090257407PREAMBLE RETRANSMISSION METHOD IN MOBILE COMMUNICATIONS SYSTEM - A preamble retransmission method in an Evolved Mobile Telecommunications System (E-UMTS) system is provided by which a terminal transmits a Radio Access Channel (RACH) preamble to a base station, the base station compares the received RACH preamble with preset specific criteria and requests retransmission for the RACH preamble to the terminal according to the comparison in order to reduce the probability of data transmission failure due to inaccuracy of time synchronization and to decrease interference with transmissions by other terminals.10-15-2009
20130201973Method of Timing Reference Management - A method of timing reference management for a mobile device in a wireless communication system comprising a network is disclosed. The method comprises being configured a first cell of a timing advance group, as a timing reference cell of the timing advance group; and when the timing reference cell is changed from the first cell to a second cell of the timing advance group and a timing alignment timer applied for the timing advance group for uplink transmission synchronization is running, deriving a new uplink transmission timing according to a second timing adjust value; wherein the second timing adjust value is calculated according to a first downlink timing of the first cell, a second downlink timing of the second cell, and a first timing adjust value for deriving the uplink transmission timing when the timing reference cell is the first cell.08-08-2013
20130201974SYSTEMS AND METHODS FOR REDUCING COLLISIONS AFTER TRAFFIC INDICATION MAP PAGING - Systems, methods, and devices for reducing collisions in a wireless communications network are described herein. In some aspects, a processor is configured to decrementing a value of a counter if a channel of a wireless communications network is idle for at least an extended slot time. The processor may be further configured to generate a polling request and allow the transmission of the polling request to an access point over the wireless communications network when the value of the counter reaches a threshold value.08-08-2013
20130201970WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION CONTROL METHOD, AND WIRELESS COMMUNICATION DEVICE - Each node transmits to a destination node a registration packet indicating that a local node is a node to request packet transmission. Each node transmits a packet to the destination node within a transmission time reported from the destination node. The destination node receives a registration packet from each node, and calculates a traffic amount to occur in each path for every path going through an adjacent node that enables direct communication with the destination node. The destination node assigns a transmission time to transmit the packet to the each path based on the calculated traffic amount of each path and reports the assigned transmission time to each node.08-08-2013
20120069824METHOD FOR EFFICIENT MU-MIMO TRANSMISSION BY JOINT ASSIGNMENTS OF TRANSMISSION ARCHITECTURE, AND INTERFERENCE ALIGNMNET SCHEMES USING OPTIMIZED USER-CODE ASSIGNMENTS AND POWER-ALLOCATION - A method, apparatus, and wireless communication system is disclosed herein for operating a BIA code structure in a system. In one embodiment, the wireless communication system comprises a plurality of receivers, wherein each receiver in the plurality having a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and further wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The wireless communication system also includes a plurality of base stations in a cell topology to perform downlink transmissions to the plurality of receivers, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a multi-user MIMO (MU-MIMO)-based blind interference alignment (BIA) scheme, wherein each active base station in the plurality of base stations operates an identical BIA code structure in a given transmission resource.03-22-2012
20120300752APPARATUS AND METHOD FOR PERFORMING UPLINK SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM - This specification relates to an apparatus and method for performing random access in a wireless communication system. This specification discloses a mobile station, including a reception unit for receiving TAG configuration information on which at least one serving cell configured in the mobile station is classified as a Timing Alignment Group (TAG) from a base station and a transmission unit for transmitting a random access preamble to the base station on one representative serving cell within the TAG. In accordance with this specification, a procedure of obtaining a TAV for a serving cell in order to secure and maintain uplink timing synchronization becomes clear, the time taken to obtain uplink synchronization for a serving cell may be reduced, and overhead due to excessive random access attempts may be reduced by obtaining a TAV for a plurality of serving cells through one random access procedure.11-29-2012
20120300751BASE STATION, USER TERMINAL, AND COMMUNICATION METHOD - A base station includes a transmission timing adjustment determination unit determining whether it to adjust a transmission timing of an uplink signal for each of user terminals; a radio resource allocation unit allocating a radio resource for instruction information to be transmitted to first one of the user terminals for which it has been determined, by the transmission timing adjustment determination unit, that he transmission timing of the uplink signal is not to be adjusted, the instruction information indicating that the transmission timing is not to be adjusted; and an instruction information transmission unit transmitting the instruction information to the first one of the user terminals using the radio resource allocated by the radio resource allocation unit. Further, the radio resource allocation unit is configured to allocate the instruction information to a radio resource to be shared and used by the first one of the user terminals.11-29-2012
20120093138MIDAMBLE ALLOCATIONS FOR MIMO TRANSMISSIONS - Allocation of multiple training sequences transmitted in a MIMO timeslot from multiple transmit antenna elements is provided. For example, a method of generating signals in a MIMO timeslot, the method comprising: selecting a first training sequence; preparing a first data payload; generating a first signal including the prepared first data payload and the first training sequence; transmitting the first signal in a MIMO timeslot from a first antenna of a network element; selecting a second training sequence, wherein the second training sequence is different from first training sequence; preparing a second data payload; generating a second signal including the prepared second data payload and the second training sequence; and transmitting the second signal in the MIMO timeslot from a second antenna of the network element.04-19-2012
20120093137WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION METHOD AND COMPUTER PROGRAM - The present invention eliminates a transmission-waiting operation which is unnecessary while accommodating a prioritized traffic. Although a communication station enters a transmission-disallowed state in response to detection of a signal addressed to another station in accordance with medium access control based on CSMA, if the communication station receives a frame transmitted with priority to a local station during the transmission waiting, it cancels the transmission-disallowed state, sends back a frame responding the frame transmitted with priority and effectively operates a transmission prioritized period. The communication station starts a search procedure to perform a processing of evading duplication of the transmission prioritized periods if it judges a possibility of a problem occurring in a time zone in which reception with priority is possible.04-19-2012
20120093136METHODS AND APPARATUS FOR EFFICIENT PROVIDING OF SCHEDULING INFORMATION - Systems and methodologies are described that facilitate efficiently providing scheduling information from an access terminal to a base station to enable effectuating scheduling decisions. Access terminals may transmit scheduling information in bifurcated requests. For instance, coarse scheduling information may be transferred utilizing a dedicated out-of-band channel, and fine scheduling information may be transmitted over an in-band channel.04-19-2012
20120093135APPARATUS AND METHOD FOR COMMUNICATING UPLINK SIGNALING INFORMATION - A User Equipment, UE, of a cellular communication system transmits scheduling assistance data to a base station comprising a base station scheduler which schedules uplink packet data. The scheduling assistance data relates to uplink packet data transmission from the UE. The UE comprises a channel controller which is operable to cause the scheduling assistance data to be transmitted from the UE to the base station in a first physical resource of an uplink air interface. The first physical resource is not managed by the base station based scheduler. The scheduling assistance data may specifically be transmitted in a first transport channel multiplexed with other transport channels on a physical resource. The transport channels may be individually optimized and may have different termination points and transmission reliabilities. Specifically, the transport channel supporting the scheduling assistance data signaling may have a high reliability and be terminated in the base station.04-19-2012
20120093134METHOD AND APPARATUS FOR EXCHANGING CONTROL OF A TRANSMISSION OPPORTUNITY - Methods and apparatus are disclosed. A method implemented in a wireless transmit/receive unit (WTRU) includes receiving a packet from a first other WTRU during a transmission opportunity (TxOP) associated with the first other WTRU and forwarding the packet to a second other WTRU during a remaining portion of the TxOP.04-19-2012
20130208709STATE SYNCHRONIZATION OF ACCESS ROUTERS - Embodiments describe synchronizing access routers with wireless terminal state information. According to an embodiment is a wireless terminal that transmits a message that includes an address for at least two access routers. State change information can optionally be included in the message. According to another embodiment is an access router that receives a state change notification from a wireless device or another access router. The state change notification is updated in the access router. An acknowledgment confirming the updated state change may be sent to the wireless terminal. Dynamic state synchronization is provided with minimal communication with wireless terminal.08-15-2013
20130208708Method and device for collaborative data communication in a radio network - The present invention relates to communication between collaborative nodes configured to collaboratively communicate in a radio network. A corresponding method comprises: sending, by each active node of the set of collaborative nodes, an RTS message for the same transmission slot; sending, by one of the active nodes, referred to as coordinator node, a CTS message to acknowledge reservation of said transmission slot on behalf of all the active nodes, upon receiving the RTSs; wherein the transmission slot is divided, based on the sent RTSs, into sub-slots for respective active nodes to transmit data packets. The invention provides an improved use of the reserved transmission slot, and a reduced waste of reserved time.08-15-2013
20130208706Sector Based HS-DPCCH Transmission for Multi-flow HSDPA Transmissions - There is provided a method of transmitting feedback information from a mobile terminal in a wireless communication system. The feedback information relates to multi-flow High-Speed Downlink Packet Access, HSDPA, transmissions to the mobile terminal from cells belonging to multiple cell sectors. The cell sectors are sometimes simply referred to as sectors. The method comprises transmitting multiple High-Speed Dedicated Physical Control Channels, HS-DPCCHs, one HS-DPCCH for each sector, such that different HS-DPCCH channels are used to carry feedback information for cells that belong to different sectors. This opens up for a more flexible HS-DPCCH solution, allowing multiple HS-DPCCHs. In this way, the relevant time budget(s) for the mobile terminal and/or base station may be retained or conserved even for multi-flow HSDPA transmission scenarios, thus avoiding re-transmissions of data.08-15-2013
20130208707RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION METHOD, AND COMPUTER PROGRAM - An autonomously dispersed type wireless network is suitably formed with communication stations avoiding collision of beacons transmitted one to another. In the event that the range of reach of airwaves change and a receivable state is created and beacons collide, a communication station changes the beacon transmission position of itself in response to receiving a beacon from another station at a timing immediately prior to transmission to its own beacon. Also, in the event that beacon collision is exposed due to emergence of a new communication which can perform reception from two systems out of airwave range of each other, the newly-participating station requests one of the communication stations of which the beacons are colliding to change the beacon transmission timing.08-15-2013
20130208710METHOD AND APPARATUS FOR TRANSMITTING A SOUNDING REFERENCE SIGNAL - Provided are a method and apparatus for transmitting a sounding reference signal. A terminal receives, from a base station, a configuration for periodic channel quality indicator (CQI) transmission and a configuration for sound reference signal (SRS) transmission. When a positive SRS request is detected, the terminal determines an SRS subframe winch satisfies the configuration for SRS transmission. When the periodically transmitted CQI is triggered in the SRS subframe, the terminal transmits the SRS in the SRS subframe to the base station.08-15-2013
20130208711METHOD AND APPARATUS FOR HANDLING IN-DEVICE CO-EXISTENCE INTERFERENCE IN A USER EQUIPMENT - A method and apparatus for handling in-device co-existence interference in a user equipment are provided. In an exemplary method, a Long Term Evolution (LTE) activity scheduled to be performed during an inactive time period of an LTE module in a user equipment is determined. It is determined whether the LTE module is to be allowed to perform the LTE activity during the inactive time period. If the LTE activity is to be allowed, then the LTE module is allowed to perform the LTE activity during the inactive time period. Otherwise, the LTE module is not allowed to perform the LTE activity during the inactive time period to provide interference free time for an Industrial, Scientific and Medical (ISM) module in the user equipment. Moreover, the disallowed LTE activity is scheduled to be performed during an active time period following the inactive time period.08-15-2013