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Combining or distributing information via time channels

Subclass of:

370 - Multiplex communications

370310000 - COMMUNICATION OVER FREE SPACE

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
370350000 Synchronization 364
370347000 Multiple access (e.g., TDMA) 91
370349000 Using messages having an address field as header 61
370346000 Polling 34
Entries
DocumentTitleDate
20090059886APPARATUS FOR A BEACON-ENABLED WIRELESS NETWORK, TRANSMISSION TIME DETERMINATION METHOD, AND TANGIBLE MACHINE-READABLE MEDIUM THEREOF - An apparatus for a beacon-enabled wireless network, a transmission time determination method, and a tangible machine-readable medium thereof are provided. The apparatus is located within the coverage area of the first equipment. The second equipment is located within the coverage area of the apparatus. The apparatus comprises a receive/transmission module and a decision module. The receive/transmission module is configured to receive the beacon of the first equipment. The decision module is configured to decide information of an upload time slot and a download time slot of the apparatus according to the beacon so that the receive/transmission module can perform data transmission with the first equipment by the upload time slot and perform data transmission with the second equipment by the download time slot. According to the aforementioned allocations, transmission collisions can be avoided and delay of transmission times is decreased.03-05-2009
20100142510COMMUNICATION APPARATUS AND METHOD FOR ENHANCING RELIABILITY IN LOW POWER TIME DIVISION ACCESS METHOD OF SENSOR NETWORK - Provided is a communication apparatus and method for enhancing a reliability in a low power time division access scheme of a sensor network. The communication method may include: transmitting, by a first sensor node, a Media Access Control (MAC) frame to a second sensor node in a first time slot that is allocated to the first sensor node; and receiving, by the first sensor node, a response frame with respect to the MAC frame from the second sensor node in a second time slot that is allocated to the second sensor node.06-10-2010
20120170568WIRELESS SYSTEM - In a wireless system of one embodiment, a first wireless device includes: a first transmitter which transmits an end-of-transmission notification; and a first receiver which receives a change request signal sent from a second wireless device receiving the end-of-transmission notification. The second wireless device includes: a second receiver which receives the end-of-transmission notification; and a second transmitter which transmits a change request signal when the end-of-transmission notification is received. The first transmitter transmits a signal at a longer interval after the first receiver receives the change request signal, and the second transmitter transmits a signal at a shorter interval after the second transmitter transmits the change request signal.07-05-2012
20090196275UPLINK DELAY BUDGET FEEDBACK - Systems and methodologies are described that facilitate signaling and/or utilizing uplink delay budget related feedback in a wireless communication environment. A lowest delay budget associated with a most urgent Radio Link Control (RLC) service data unit (SDU) retained in a buffer of an access terminal can be determined. Further, a portion of a Medium Access Control (MAC) header (e.g., two reserved bits, . . . ) can be configured to carry a code related to a delay threshold corresponding to the lowest delay budget. Moreover, the MAC header can be transferred to a base station. The base station can detect the code carried by the portion of the MAC header, and a delay threshold can be determined as a function of the detected code (e.g., utilizing a radio bearer specific mapping). According to an example, the access terminal can be scheduled for uplink transmission as a function of the delay threshold.08-06-2009
20080259898METHOD AND APPARATUS FOR DYNAMIC RADIO RESOURCE CONTROLLING - A method and a mobile terminal for communicating with a mobile network element (IWF) comprising communicating with a mobile network element (IWF) using a bearer that is modifiable by a negotiation between the mobile terminal (MS) and the mobile network element (IWF). The data is divided into data units (10-23-2008
20080259895System and Method for an Ultra Wide-Band Medium Access Control Distributed Reservation Protocol10-23-2008
20110194552WIRELESS TRANSMISSION AND RECEPTION METHOD AND APPARATUS - A wireless transmission and reception method for the transmission of sequences of signals between a first transceiver device and at least a second transceiver device, wherein the first transceiver device and second transceiver device are disposed outside a reciprocal direct radio-communication range. The method comprises a distribution step of a plurality of intermediate transceiver devices, disposed in a non-uniform manner between the first transceiver device and second transceiver devices as to form a linear transceiver chain. The method comprises a step of direct transmission, wherein a first sequence of signals is transmitted from the first transceiver device toward the second transceiver device at regular time intervals, temporally consecutive, able to define a synchronous times base in which each signal of the first sequence is re-transmitted from an intermediate device to an intermediate device immediately adjacent and successive along the path toward the second transceiver device. The method comprises a step of indirect transmission, in which a second sequence of signals is transmitted from the second transceiver device toward the first transceiver device, wherein each signal of the second sequence is transmitted from an intermediate device to an intermediate device immediately adjacent and successive along the path toward the first transceiver device. The signals of the second sequence are transmitted at predetermined regular time intervals defined by the times base in such a manner that each intermediate device receives at most a single signal of the first or second sequence in order to avoid collisions.08-11-2011
20090122778APPARATUS AND METHOD FOR ASSIGNING TIME SLOT FOR TRANSMITTING BEACON IN WIRELESS SENSOR NETWORK - A method and an apparatus for assigning a time slot for transmitting a beacon in a wireless sensor network operated in a beacon mode are provided. In the method and apparatus for assigning a time slot according to the present invention, the total time slots assigned to the network are divided into N blocks and a node to which a time slot is exclusively assigned, among nodes to which a specific node is capable of directly and wirelessly transmitting, is selected as a parent node, the network is divided into two or more regions centering the parent node, a block having the time slot assigned to the parent node and adjacent blocks, among the N blocks, are respectively assigned to the regions, a time slot having been yet unassigned, among the time slots belonging to the block assigned to the region to which the specific node belongs among the divided regions, is assigned as the time slot of the specific node.05-14-2009
20090122779AUTONOMOUS WIRELESS NETWORKS - A device is operable to use received signals to divide time into a succession of frames, each frame having plural consecutive timeslots, and into a succession of four or more superframes. A transmitter is operated only in a single timeslot in one frame. A receiver is operated in the other timeslots in the frame and for all timeslots of immediately preceding and following frames, and in no other frames. This allows devices to predict periods in which to hibernate or carry out intensive tasks. The device determines which timeslots of the first frame are occupied to provide local awareness information, and transmits it as a code on its transmit timeslot along with payload data. This allows other devices in a network to obtain information about their local environment and about the environment of their neighbours. Routing decisions are made on this basis.05-14-2009
20130083787CONFIGURATION OF A NEAR-FIELD COMMUNICATION ROUTER ACCORDING TO THE MODULATION TYPE - A method for configuring a first near-field communication device according to a modulation type transmitted by a second device, wherein: a decoder of the first device is configured to decode a type-A modulation; a signal received during a first time slot corresponding to the duration of a first type-A symbol is decoded; and the first device is configured according to the value of the decoded symbol to determine the modulation type.04-04-2013
20100046497METHOD AND AN APPARATUS FOR A QUICK RETRANSMISSION OF SIGNALS IN A COMMUNICATION SYSTEM - A method and an apparatus for quick retransmission of signals in a communication system are disclosed. A transmitting terminal, e.g., a base station, transmits signals in a form of packets to a receiving terminal, e.g., a subscriber station. The receiving terminal determines if the packet was intended for the receiving terminal, and if so, the receiving terminal demodulates the packet. The receiving terminal then computes a quality metric of the packet, and compares the computed quality metric with a quality metric contained in the packet. If the quality metrics match, the packet is declared correctly received, and is forwarded for further processing. If the quality metrics fail to match, the receiving terminal sends a request for retransmission of the packet. The transmitting terminal determines which packet needs to be retransmitted based on the request for retransmission. The transmitting terminal then schedules the packet for retransmission.02-25-2010
20100046496METHOD AND SYSTEM FOR BLUETOOTH CONNECTION SETUP IN A MULTI-STANDARD MULTI-RADIO COMMUNICATION SYSTEM - Aspects of a method and system for Bluetooth connection setup in a multi-standard multi-radio communication system are provided. In this regard, a Bluetooth system may be operable to determine whether a coexistent time division multiplexing communication system is receiving signals and to control the types of packets it transmits based on the determination. While the coexistent time division multiplexing communication system is receiving signals, the Bluetooth system may be limited to transmission of Bluetooth packets that enable establishment of a Bluetooth connection. For example the Bluetooth system may be limited to sending ID packets in response to page packets and FHS packets and/or may be limited to sending FHS packets. Also, the Bluetooth system may refrain from transmitting packets while the Bluetooth system is connected as a piconet master and while the time division multiplexing communication system is receiving.02-25-2010
20100111066SYSTEM AND METHOD FOR VARIABLE BEACON TIMING WITH WIRELESS DEVICES - Systems and methods for supporting variable beacon timing for a first wireless device and a second wireless device are provided. An exemplary system may include a number of wireless devices configured to wirelessly communicate with one another. The system includes a beacon-transmitting wireless device and a listening wireless device. The beacon-transmitting wireless device is configured to transmit, during a first operating mode, wireless beacons separated in time by relatively long time intervals. The beacon-transmitting device is also configured to transmit, during a second operating mode, wireless beacons separated in time by relatively short time intervals. The listening wireless device is configured to listen, during the first operating mode, for wireless beacons transmitted by the beacon-transmitting wireless device, and is configured to listen, during the second operating mode, for wireless beacons transmitted by the beacon-transmitting wireless device. The system may have more than two different operating modes, which may be desirable if the number of wireless devices in the system exceeds two.05-06-2010
20100111068METHOD AND APPARATUS FOR TTI BUNDLING TRANSMISSION IN A WIRELESS COMMUNICATIONS SYSTEM - A method for handling a transmission time interval, hereinafter called TTI, bundling operation for a mobile device of a wireless communication system is disclosed. The method includes performing transmission of a TTI bundle, and ignoring all feedbacks and uplink grants for retransmission when the feedbacks and uplink grants for retransmission are received after the transmission of the TTI bundle and before the TTI where a feedback of the TTI bundle is expected.05-06-2010
20100040038WIRELESS COMMUNICATION SYSTEMS WITH FEMTO CELLS - Systems and methods of uniquely identifying communication nodes in a wireless communication system are described herein. One embodiment of the disclosure provides a wireless apparatus comprising a transceiver configured to receive a first identifier during at least one time slot. The first identifier identifies a first communication node. The apparatus further comprises a processing circuit configured to determine if the first identifier is received during a first time slot that is different from at least one pre-assigned time slot.02-18-2010
20100040039METHOD AND SYSTEM WHEREIN TIMESLOTS ALLOCATED FOR COMMON CONTROL CHANNELS MAY BE REUSED FOR USER TRAFFIC - A method and system is disclosed wherein timeslots designated in a wireless communication system as Common Physical Channel (CPCH) timeslots may be reused for user traffic. A CPCH timeslot used in a first cell may be reused by a second cell, assuming the first and second cells transmit control information in different CPCH timeslots, for user traffic. The second cell is permitted to reuse the timeslot in which the first cell is transmitting control information so long as the second cell's reuse of that timeslot does not degrade reception of control information in the first cell.02-18-2010
20100040037RADIO COMMUNICATION TERMINAL DEVICES, RADIO COMMUNICATION NETWORK ARRANGEMENT, METHOD FOR OPERATING A RADIO COMMUNICATION TERMINAL DEVICE - In an embodiment, a radio communication terminal device is provided. The radio communication terminal device may include a receiver configured to receive radio data signals via a first frequency carrier and a second frequency carrier, and a controller configured to control the receiver such that the receiver does not receive radio data signals via the first frequency carrier during a transmission gap, and such that the receiver receives radio data signals via the second frequency carrier during the transmission gap.02-18-2010
20100329231WIRELESS COMMUNICATION APPARATUS WITH PHYSICAL LAYER PROCESSING MODULE AND MAC LAYER PROCESSING MODULE AND ITS COMMUNICATION METHOD - A wireless communication apparatus includes a first module, a second module, an inhibit module, a calculation module, and a control module. The first module constitutes a first system. The first system transmits and receives first data to and from a first device. The second module constitutes a second system. The second system transmits and receives second data to and from a second device in each interval time-divided with determined transmission timing. The inhibit module generates inhibit periods for preventing the first module from communicating by use of the first data. The calculation module calculates an occupation time required for the transmission and reception of the first data. The control module compares the period between the inhibit periods adjacent to one another with the occupation time and, according to the comparison result, instructs the first device to stop or delay the transmission of the first data.12-30-2010
20090303979OPTIMAL USER PAIRING FOR DOWNLINK MULTIUSER MIMO - A method includes operating a transmitter connected with n12-10-2009
20090303978Method, apparatus and computer program for open loop transmission diversity - A symbol multiplied by a first constant amplitude zero autocorrelation code CAZAC reference signal RS is transmitted in a timeslot from a first antenna of a user equipment on a first physical uplink control channel in a manner that multiplexes with other user equipments. A symbol multiplied by a second CAZAC RS is transmitted in the timeslot from a second antenna of the user equipment on a second physical uplink control channel in a manner that multiplexes with other user equipments. The first and second CAZAC RSs are orthogonal to one another by at least one of the cyclic shifts or a cover code applied to at least one of the first and the second CAZAC RSs. The symbols may be the same or different, and may represent an ACK, a NACK, or a scheduling request indicator. These teachings extend to more than two transmit antennas.12-10-2009
20090303977METHOD AND APPARATUS FOR CONTROLLING DISCONTINUOUS TRANSMISSIONS - Techniques for controlling discontinuous transmissions in a wireless communication system are described. A method and apparatus for transmitting data on an uplink includes tracking past performance of at least one of an uplink channel condition and uplink system resources. A prediction of a likelihood of a completed or successful data transmission is performed. A long preamble is transmitted with an uplink control channel when the prediction indicates a likelihood of completion of the data transmission. When past performance indicates an unlikelihood of completing the transmission of the data, then the discontinuous mode is maintained without data transmission.12-10-2009
20120218984WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION CONTROL METHOD, WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD, AND COMPUTER PROGRAM - A wireless communication device in a wireless network sets management information notification cycles at specified time intervals and transmits management information containing receive timing information showing its own position to start receiving information, receive window information, and receive cycle information. Another wireless communication device receiving that management information links it to a communication device number for the corresponding wireless communication device and stores the receive timing, the receive window information, and the receive cycle information. When sending information, the receive start position of the corresponding communication device is found from the receive timing information, the receive window information, and the receive cycle information of the other communication and information is then transmitted at that timing. An asynchronous ad-hoc communication wireless network can therefore be configured without a particular control station.08-30-2012
20090092120RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD AND BASE STATION - A radio communication system includes: a serving cell (for example, cell A functional unit 04-09-2009
20090092119BLIND-SLOT RADIO WITH NON-BLIND-SLOT SCANNING MODE - The present invention relates to a transceiver device and a method of controlling a time-division multiplex frame structure with time slots in active mode in which a bearer is established, and time slots in an idle mode in which no bearer is established. Adjacent first and second time slots are set in a scanning mode when the transceiver device is listening for bearer set-up attempts, and the first time slot is switched from the scanning mode to the idle mode if a bearer has been established in the adjacent second time slot and the adjacent second time slot is set into the active mode. Thereby, a non-blind-slot scanning mode is provided which enables maximum number of active full and double slots in systems with blind slot radio.04-09-2009
20090268707METHOD TO IMPLEMENT TRANSMISSION TIME INTERVAL BUNDLING - Methods for implementing transmission time interval (TTI) bundling, and a wireless transit/receive unit (WTRU) and a base station configured to process the methods are shown. The method includes the WTRU receiving a TTI control signal and/or configuration message from a network and the WTRU transmitting TTI control signals to the network. The control signals and/or configuration message may be sent via Layer 1, Layer 2, or Layer 3 messages. Signaling may be implemented, for example, using or via an enhanced-absolute grant channel (E-AGCH), a high speed-shared control channel (HS-SCCH), Medium Access Control (MAC) headers, radio resource control messages, a logical channel ID, information elements, and the control signals and/or configuration may include, for example, information related to triggering criteria, activation and de-activation, number of retransmissions, handover related information and configuration information.10-29-2009
20090268706OPTIMISED PACKET DATA TRANSMISSION PROTOCOL IN A COMMUNICATION SYSTEM EMPLOYING A TRANSMISSION WINDOW - A packet data transmission protocol that uses transmission windows includes a packet control unit (PCU) (10-29-2009
20090238165Providing a Time Offset Between Scheduling Request and Sounding Reference Symbol Transmissions - A user equipment (UE) including a processor configured to promote scheduling transmission of a series of scheduling requests offset a series of sounding reference symbols.09-24-2009
20090232122Radio Base Station, Radio Terminal and Radio Communication Method - Date that is to be transmitted from transmitting antennas in each of a plurality of resource blocks, obtained by dividing a radio resource, used for communication with a radio terminal is multiplied by weigh information. A group of plural pieces of the weight information associated with resource blocks to be transmitted per unit time is controlled.09-17-2009
20090010242System and method for estimating interference in a packet-based wireless network - A system and method for predicting future interference power in packet-switched networks is disclosed, allowing improved performance in such networks via optimized link adaptation and power control. In an embodiment for use in a cellular network, Kalman filtering can be used to provide the interference estimation through identification of the number of active co-channel interferers in the cellular networks and correlation of the interference power with the number of active interferers. A two-dimensional Kalman filter can be used to exploit that correlation to enhance prediction accuracy. In an alternative embodiment, a one-dimensional Kalman filter can be used where the number of active interferers is not considered.01-08-2009
20090010241Transmission Device, Transmission Method, and Computer-Readable Medium - A transmission device transmits data to a certain communication device among multiple communication devices connected over a wireless network in wireless communication capable of using multiple transmission rates. The transmission device includes first transmitting means for transmitting a first packet to the certain communication device during a transmission inhibited period; receiving means for receiving a second packet including information indicating a communication environment at reception of the first packet at the certain communication device from the certain communication device; and second transmitting means for transmitting a third packet to the certain communication device at a transmission rate appropriate for the information that is included in the received second packet and that indicates the communication environment. The data length of the certain data included in the first packet is shorter than that of the data included in the third packet.01-08-2009
20110019658COMMUNICATION APPARATUS, DISTORTION-COMPENSATING CIRCUIT, AND DISTORTION COMPENSATION METHOD - A transmission circuit sends a transmission signal from a signal-processing unit to a port. A reception circuit sends a received signal from a port to the signal-processing unit. A waveform monitor, by monitoring the waveform of the transmission signal that is sent to the port from the transmission circuit, generates a feedback signal. A switch unit connects the feedback signal from the waveform monitor to the reception circuit at transmission timing. The signal-processing unit compares the transmission signal with the feedback signal of the transmission signal.01-27-2011
20080310385Radio Base Station Apparatus and Transmission Rate Notifying Method - A radio base station apparatus wherein the consumption of transmission power resources in a high-rate packet transmission can be suppressed. In the apparatus, a scheduling part (12-18-2008
20120236841BASE STATION APPARATUS FOR TRANSMITTING OR RECEIVING A SIGNAL INCLUDING PREDETERMINED INFORMATION - A base station apparatus controls inter-terminal communication. Basic information containing information about a first period and extended information containing the information about a second period and a third period are defined and a generation unit generates a packet signal containing an identifier to identify whether the basic information of the basic information and the extended information is contained in the packet signal or the basic information and the extended information are contained in the packet signal. A modem unit and an RF unit broadcast the packet signal containing the identifier generated by the generation unit.09-20-2012
20090129363Automatic Volume Restoration in a Distributed Communication System - A distributed home communications system automatically restores settings, such as volume levels, on each communication node when initiating a connection associated with various communication types in paging, public address, two-way radio, intercoms, music distribution systems, and the like.05-21-2009
20100014503Method for extending a heterogeneous MAC protocol to multi-channel systems - An extension to a heterogeneous MAC protocol that makes provisions for multi-frequency system architecture is described. A new frame structure for a multi-frequency xMAX system is introduced. Multi-frequency xMAX system is an extension of a single-channel xMAX system, where the available bandwidth is split into multiple channels to provide additional capacity and range. The new frame structure is followed by all channels and is designed to fulfill the requirements of multiple frequency operation. The new frame structure incorporates features that allow the handset to leverage the advantages of multiple frequency channels, especially in the event of interference. Also, a new mechanism to reduce the power consumption in the handset is discussed that significantly reduces the number of unnecessary receive operations at the handset.01-21-2010
20120008617HYBRID ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS WTRU AND METHOD - A hybrid orthogonal frequency division multiple access (OFDMA) wireless transmit/receive unit (WTRU) and method are disclosed. A WTRU includes a transmitter and a receiver. The receiver processes received data to recover data mapped to the subcarriers using OFDMA. The receiver recovers first input data by separating user data from multi-user spread data and recovers second input data from non-spread data.01-12-2012
20110299519COOPERATIVE COMMUNICATION METHODS AND DEVICES - Cooperative communication methods for a wireless communication network (12-08-2011
20090103511METHOD AND APPARATUS FOR SELECTING A RADIO LINK CONTROL PROTOCOL DATA UNIT SIZE - A method and apparatus are used to create RLC PDUs in advance of the E-TFC selection for the MAC PDU that will include this or these RLC PDU(s). The apparatus may be configured to pre-generate RLC PDUs for transmission in a later TTI. This approach avoids the large peak processing requirement due to the tight delay constraint if any RLC PDU to be included into a MAC PDU had to be created after the determination of the size of this MAC PDU, i.e. after E-TFC selection. The method and apparatus maintain an approximate match between the size of an RLC PDU and the size of the MAC PDU it is included into. Maintaining this approximate match ensures that the RLC PDU error rate due to HARQ residual errors remains low. This approach may be designed as “semi-radio aware” or “radio-aware with delay”.04-23-2009
20100103921System and Method for Insertion of Time Stamp Into Real Time Data Within a Wireless Communications Network - A system for adding a time stamp to transmission traffic on a wireless network comprises a front end processor that receives a packet from the network and generates a Start Of Frame pulse and a LENGTH field corresponding to a length of the packet. A time stamp generator generates a time stamp by sampling the system master time counter. A synchronizer receives the SOF pulse and the LENGTH field from the front end processor, and generates a control signal. A multiplexer inputs the packet from the front end processor, the control signal and the time stamp, and outputs a modified packet with a field in the packet replaced by the time stamp.04-29-2010
20080310388TRANSMISSION OF RADIO BLOCKS IN REDUCED TRANSMISSION TIME INTERVAL MODE - A method and apparatus for operating a wireless transmit receive unit (WTRU) in basic transmission time interval (BTTI) and reduced transmission time interval (RTTI) mode includes a WTRU in RTTI mode and a WTRU in BTTI mode receiving a plurality of coded radio blocks, the WTRU in RTTI mode decoding all of the plurality of coded radio blocks and the WTRU is in BTTI mode decoding a portion of the plurality of coded radio blocks.12-18-2008
20080310386TECHNIQUES FOR OPTIMIZATION OF LOCATION DETERMINATION IN WIRELESS NETWORK - An embodiment of the present invention provides an apparatus, comprising a transceiver operable in a wireless network, wherein said transceiver is configured to optimize location determination in said wireless network by preventing scheduled uplink (UL) transmissions at a reference base station (BS) from interfering with an uplink (UL) reference signal from a mobile station (MS).12-18-2008
20090190567METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING BROADCAST SERVICE DATA IN A BROADCASTING COMMUNICATION SYSTEM, METHOD FOR CONFIGURING THE BROADCAST SERVICE DATA, AND FRAME INCLUDING THE BROADCAST SERVICE DATA - An apparatus and method for configuring a broadcast service data in a digital broadcasting communication system are provided. The method includes mapping a first zone, corresponding to broadcast service data of a first type, and a second zone, corresponding to broadcast service data of a second type, in a frame individually. Preferably, the broadcast service data included in the first zone and the second zone is sliced into sub-slices according to a different number of service slicings for each zone.07-30-2009
20080232341Scheduling for multi-carrier wireless data systems - Disclosed is a method and apparatus for scheduling multiple carriers to service multiple users in a multi-carrier wireless data network. A data transmission in a multi-carrier wireless data system can be scheduled in frames comprising one or more time slots. For each frame, each of multiple carriers in each time slot of the frame are assigned to one of multiple users. Various objective functions can be used to assign the carriers to the users based on a weight for each user and a channel rate of each carrier for each user while preventing excessive carriers from being assigned to a user.09-25-2008
20090316678RADIO 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
20100091758TRANSMISSION SCHEDULING OPTIMIZATION METHOD AND WIRELESS USER EQUIPMENT DEVICE - A wireless user equipment device transmits a control channel and a data channel. Each of the control channel and the data channel include a plurality of time slots. The control channel is configured to transmit control information and includes both transmission time slots and non-transmission time slots. The data channel is configured to transmit data packets. The device further includes a processor configured to schedule at least one data packet for transmission in at least one data channel time slot that is concurrent to at least one control channel transmission time slot, and a transmission module configured to transmit the at least one data packet in the at least one data channel time slot that is concurrent to the at least one control channel transmission time slot.04-15-2010
20090147765AIR-TIME FAIR TRANSMISSION REGULATION WITHOUT EXPLICIT TRAFFIC SPECIFICATIONS FOR WIRELESS NETWORKS - A system and method are provided for non-transmission specification fair air-time, NT-AirFair, allocation control by tracking the transmission time (06-11-2009
20090310590Transmission and Reception Parameter Control - A system and method for implementing transmission parameter control at a transmitting station is described. The exemplary system and method comprises querying a transmission parameter control module for a transmission schedule. The transmission schedule comprises at least one schedule entry defining a set of transmission parameter controls as they pertain to a destination address. At least one packet of data is then transmitted to the destination address according to the transmission parameters controls of at least one schedule entry from the transmission schedule. A system and method for selecting an antenna configuration corresponding to a next transmission of packet data is also disclosed.12-17-2009
20090207830METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SLOTTEDMODE ATTRIBUTE IN WIRELESS COMMUNICATION SYSTEMS - A method and apparatus for transmitting a SlottedMode attribute in a wireless communication system is described. A SlottedMode attribute message comprising an 8 bit Length field wherein the Length field indicates length of the complex attributes in octets, an 8 bit AttributeID field, an 8 bit SlotCycleBase field wherein the SlotCycleBase field is set to the SlotCycleBase that is used in calculating a period, an 8 bit SlotCycle field wherein the SlotCycle1 field is set to SlotCycle1, an 8 bit SlotCycle2 field wherein the SlotCycle08-20-2009
20090086702RANDOMIZATION OF PERIODIC CHANNEL SCANS - An apparatus and method for wireless communications supports a periodic scan for wireless devices. The periodic scan includes a plurality of scans spaced apart in time. The phase of the periodic scan is changed in response to one of the wireless devices being detected in one of the scans.04-02-2009
20090086701Method and device for performance optimisation of a data distribution network - A method for scheduling the delivery of a plurality of data portions to respective recipients in a data distribution network, wherein the recipients are commonly utilizing a bottleneck element limiting the performance of the data distribution network. A proportion of recipients automatically requesting a respective data portion is determined upon receiving a respective notification message. A preferred time span for delivering the data portions is determined according to a capacity of the bottleneck element, the amount of data that is to be delivered and the proportion of recipients automatically requesting the respective data portion. The delivery of a data portion is delayed according to the preferred time span for delivering.04-02-2009
20110026512CO-EXISTENCE FOR CO-LOCATED RADIOS WHICH OPERATE IN THE SAME FREQUENCY BAND - A co-existence method is described. The method comprises setting a priority level of a slot based on the likelihood that the slot will be required by a first radio and signalling the priority level to radio which is co-located with the first radio and which shares a resource with the first radio. The slot may, for example, be a re-transmission slot following a primary transmission slot or may be a sniff anchor point. The likelihood may be determined based on one or more factors, such as historical data or knowledge of the activity of a peer of the first radio.02-03-2011
20090168742METHOD FOR CONTROLLING THE TIMING OF WIRELESS COMMUNICATIONS INVOLVING TELEMATICS-EQUIPPED VEHICLES - A timing control method for use with wireless communications involving telematics-equipped vehicles. The timing control method generally determines a temporally-distributed sequence of message response times for a group of telematics-equipped vehicles, and then includes these different response times in wireless messages that are sent to the vehicles. In reply, the vehicles use the various message response times to respond in an apportioned or distributed fashion that generally correlates with the temporally-distributed sequence; instead of all at once. In another disclosed method, the response times are determined at each vehicle itself. The methods can be used for requesting data from vehicles via SMS messages.07-02-2009
20120106535WIRELESS COMMUNICATION DEVICE AND COMMUNICATION PROGRAM - A wireless communication device includes a history holder configured to obtain notified timings of transmission requests when the transmission requests are notified, calculates request intervals of notifications of the transmission requests, and holds the request intervals at past n (n is an integer equal to or larger than 2) times; a timing controller configured to determine a transmission interval to the next packet transmission based on the request intervals; a transmitting/receiving unit configured to generate a packet which has time information indicating the transmission interval added to a header part of transmission data, transmits the packet to the other-party wireless communication device, and receives a packet from the other-party wireless communication device; and a communication controller configured to cause at least the transmitting/receiving unit to suspend operation during a period from when the packet is transmitted to when time of the transmission interval elapses.05-03-2012
20090274138METHOD FOR TRANSMITTING DATA AND A DEVICE HAVING DATA TRANSMISSION CAPABILITIES - A method for transmitting data, the method includes scanning at least a first memory unit to retrieve data segments associated with multiple TDM channels, in response to a definition of multiple TDM time frames, each TDM time frame includes multiple time slots; sending the retrieved data segments to an array of line shifters; multiplexing data segments provided from the array of line shifters, in response to the definition, such as to provide in a parallel manner multiple data segments to multiple TDM lines; and transmitting a group of time division multiples data frames over a group of TDM lines11-05-2009
20090296681Use of out-of-band signaling for wireless communication network to enhance search and entry - A method, apparatus and computer program operate so as to formulate a request at a terminal for a network access node to transmit a broadcast message; to transmit the request on an out-of-band radio channel for reception by the network access node; and to receive the broadcast message prior to a next scheduled time for the broadcast message to be transmitted. The network may be a WiMAX network, and the broadcast message may be at least one of a downlink channel descriptor/uplink channel descriptor and system identity information advertisement message. Also disclosed is a corresponding network access node that operates so as to receive a request from at least one terminal, where the request is a request to transmit a broadcast message and is received on an out-of-band radio channel. The network access node responds by transmitting the broadcast message prior to a next scheduled time for the broadcast message to be transmitted.12-03-2009
20090285196SCHEDULING WITH QUALITY OF SERVICE SUPPORT IN WIRELESS SYSTEM - Systems and methods for scheduling wireless communications of a base station with multiple user mobile stations involve grouping the user mobile stations in clusters based on a predetermined criterion, such as a QoS profile of a user mobile station. Each cluster is assigned with a cluster weight factor that defines a priority level of the cluster. For each user mobile station in each cluster, a priority index may be determined based on the cluster weight factor of a respective cluster, and throughput and fairness factors respectively selected to maximize throughput and provide fairness to user mobile stations. The user mobile stations may be served in an order based on their priority indexes.11-19-2009
20090103510Time Slot Control Method, Communication System, Communication Apparatus, and Storage Medium - It is an object of the present invention to make it possible to obtain an appropriate receiving environment in a communication system using a slot connecting transfer system. A mobile communication system (04-23-2009
20100111067METHOD FOR IMPROVING RANDOM ACCESS PROCEDURE IN WIRELESS COMMUNICATIONS SYSTEM AND RELATED COMMUNICATION DEVICE - A method for improving a random access procedure for a mobile device of a wireless communication system is disclosed. The method includes initiating the random access procedure, starting a time alignment timer of the mobile device when receiving a time alignment message transmitted by a base station of the wireless communication system, and controlling the random access procedure according to expiry of the time alignment timer, wherein the time alignment timer of the mobile device is used for determining a synchronization state between the mobile device and the base station and the time alignment message is utilized by the base station to update a timing advance for the mobile device.05-06-2010
20110268102TECHNIQUES FOR FORMATTING SIGNALS FOR TRANSMISSION USING A WIRELESS NETWORK - Techniques are described for forming signals for transmission to a receiver. Two transmitters can form resource blocks with different Physical Uplink Control Channel (PUCCH) demodulation reference signal (DMRS) patterns that are orthogonal over time and/or frequency to each other. The transmitters can simultaneously transmit the same resource block but with different DMRS patterns. If a receiver is mounted with two antennas, the receiver can utilize a MIMO receiver to differentiate resource blocks from two transmitters.11-03-2011
20080212557METHOD AND APPARATUS FOR BATTERY-AWARE DYNAMIC BANDWIDTH ALLOCATION FOR WIRELESS SENSOR NETWORKS - A method and apparatus that allocates bandwidth among wireless sensor nodes in a wireless sensor network (WSN) is disclosed. The method may include allocating transmission time slots for a plurality of wireless sensor nodes based on at least one channel quality metric, determining battery levels in each of the plurality of wireless sensor nodes and average battery level of all of the plurality of wireless sensor nodes, determining differences in battery level between each of the plurality of wireless sensor nodes and average battery level of all of the plurality of wireless sensor nodes, wherein if any such difference is above a predetermined threshold, increasing the transmission time slots allocation of wireless sensor nodes having higher battery levels relative to other wireless sensor nodes in the plurality of wireless sensor nodes.09-04-2008
20080212560ENCODING FOR EFFICIENT USE OF AN UPSTREAM CHANNEL IN BURST MODE - Alignment-enabled secondary nodes of a DAMA network monitor the alignment of for-transmission data as it is received, and actively align the data frames into encoded blocks such that the number of blocks occupied by encoded data resulting from an unencoded datastream of a particular length is predictable rather than variable. In some embodiments, the network is an Ethernet passive optical network and the alignment includes aligning a XGMII word having a start control code to a first position in a 72 bit word input to a 09-04-2008
20080212558Communication Set Up Between Wireless Devices - The invention relates to a slave wireless device (Picc) comprising: 09-04-2008
20110206031RECEIVER AND RECEIVING METHOD - A receiver includes a replica signal generating unit which generates a replica signal as a replica of a transmission signal based on a received signal; a time zone setting unit which sets a plurality of time zones to be extracted such that a part of a signal interval of the received signal is included in the plurality of time zones to be extracted; a signal extracting unit which extracts a signal in a predetermined time zone of the received signal based on the replica signal and a time zone which is set by the time zone setting unit; a combining unit which combines signals of the respective time zones extracted by the signal extracting unit; and a decoding processing unit which carries out decoding on the signal combined by the combining unit.08-25-2011
20090003305Method and Arrangement in a Telecommunication System - The present invention relates to methods and arrangements for interference reduction for bursty or intermitted transmissions. DPCCH gating with regular on/off-gating patterns can create waveforms that can interfere with non-UMTS audio equipments, e.g. hearing aids. The present invention relates to modifying the transmission instants of data packets in such a way such interference can be significantly reduced. This is achieved by introducing a randomization mechanism into the mapping function of data packets onto the HARQ processes, which in turn are mapped onto predefined transmission occasions (sub-frames). This results in a non-periodic transmission pattern while maintaining user data transmission requirements.01-01-2009
20090003304Wireless communication system, base station, and wireless communication method - A wireless communication system comprising a base station and a terminal station. The base station extracts paths having a power level that exceeds a predetermined threshold value from delay profiles of said terminal station as available paths, selects a path having a maximum power or a first path from said available paths as a reference path, calculates time difference between an arrival time of said reference path and a predetermined maximum arrival time, and transmits the result to said terminal station as a transmission timing control signal. The terminal station adjusts the transmission timing to the base station according to said time difference. The base station transmits the transmission timing control signal only when the base station detects the reference path.01-01-2009
20080240067TIME SHARED RAKE FINGERS AND PATH SEARCHER - A rake receiver having a rake receiver finger operated in a time multiplexed manner to perform the task a plurality of fingers, each of these fingers being a virtual finger allocated to a time slot in an operation cycle of the rake receiver finger, and wherein a buffer is provided for buffering at least one received chip of data, and where a spare virtual finger is provided such that any virtual finger may request extra processing within an operation cycle of the time multiplexed rake receiver finger.10-02-2008
20100128712Directional transmission techniques - Embodiments provide techniques for the transmission of broadcasts. For instance, an apparatus may include a sequence selection module, and multiple radiating elements. The sequence selection module selects sequences of directional transmission patterns, where each selected sequence corresponds to a time period. The multiple radiating elements wirelessly transmit a broadcast at the time periods in accordance with the selected sequences. The broadcast may include, for example, beacons, and/or a data broadcast, and/or a control broadcast and/or a management broadcast.05-27-2010
20080273517Wireless Communication Apparatus and Wireless Communication Method - The circuit scale of a wireless communication apparatus at the data receiving end in a wireless communication performing an adaptive control for each of subcarriers or subchannels can be reduced. In the present apparatus, frame forming parts (11-06-2008
20080273520NETWORK ARCHITECTURE FOR DYNAMICALLY SETTING END-TO-END QUALITY OF SERVICE (QoS) IN A BROADBAND WIRELESS COMMUNICATION SYSTEM - A communication network architecture including a broadband radio access network is provided. The architecture includes a terminal for transmitting an application layer service request message to request a service, a Policy Charging Rule Function (PCRF) for generating Quality of Service (QoS) parameters of an Internet Protocol (IP) layer using QoS parameters of an application layer contained in the application layer service request message, a first Policy Decision Function (PDF) for generating one or more QoS parameters of the IP layer in addition to the IP layer QoS parameters generated at the PCRF and a second PDF for generating a QoS parameter set of a radio access network using the IP layer QoS parameters generated at the PCRF and the one or more IP layer QoS parameters generated at the first PDF. The communication network guarantees an end-to-end QoS.11-06-2008
20080273518Suspending Transmissions in a Wireless Network - A method of increasing operational safety of a wireless communication network operating in a process control environment and having a plurality of network devices includes detecting a first triggering condition associated with an increased operational risk due to a wireless transmissions by at least one of the plurality of network devices, sending a suspend command to at least some of the plurality of network devices, suspending transmissions at the at least some of the plurality of network devices; and resuming transmissions at the at least some of the plurality of network devices upon occurrence of a second triggering condition.11-06-2008
20080285536Method and apparatus for concurrent operation of wireless communication protocols - A method and apparatus of coordinating operation of two or more subsystems implementing different wireless communication protocols is disclosed. The method comprises coordinating operation of a first subsystem implementing a first wireless communication protocol and at least one other subsystem implementing at least one other wireless communication protocol by merging requests from the first subsystem for pre-scheduled access and real time access into a single request for access for the first subsystem. The method comprises merging requests from the at least one other subsystem for pre-scheduled access and real time access into a single request for access for the at least one other subsystem and arbitrating between the single requests for access for each subsystem to allocate access to the first subsystem and/or the at least one other subsystem.11-20-2008
20080212559Wireless proximity estimation - A wireless content protection system includes a coordinator, a source device, and a sink device. The coordinator includes a scheduler. The source and sink devices each have a content protection manager. One of the content protection manager allocates and releases bandwidth via the coordinator for a test message and a response message for a round-trip time computation. The test message is transmitted in a source-to-sink channel time block. The response message is transmitted in a sink-to-source channel time block. The round-trip time is the period between the end of the source-to-sink channel time block and the beginning of the sink-to-source channel time block.09-04-2008
20080273519Streaming Video Data to Mobile Devices - The streaming of video data to mobile devices (11-06-2008
20080205370Method for Controlling Use Amount of Radio Channel in Ad Hoc Network and Communication Apparatus Using the Same - The method for controlling a use amount of a radio channel for transmitting a packet from a node in a wireless Ad Hoc network that employs a contention-based protocol includes (a) estimating a total amount of data transmitted through packet transmission from the node; (b) controlling a backoff time that determines the use amount of the radio channel based on the estimated amount of transmitted data; and (c) participating in contention for gaining access for the next packet transmission by using the backoff time. A contention window value for setting the bounds of backoff time can be set by calculating a total amount of data transmitted through a transmit node, and thus channel distribution can be controlled such that a plurality of transmit nodes can fairly transmit data through the channel, thereby enhancing quality of packet data service.08-28-2008
20080225823SCHEDULING OF DYNAMIC BROADCAST CHANNEL - System(s) and method(s) are provided that facilitate scheduling system information. Scheduling of system information exploits a control channel associated with a broadcast channel (BCH), and utilizes reference information (e.g., a time reference or a scheduling reference) in addition to system information typically carried by scheduling units (SUs). Scheduling proceeds primarily according to three planning types. (i) A SU carries an indication of a time at which a disparate SU is to be scheduled in the control channel associated with the BCH. The indicated time is a specific time slot in the control channel or a lower bound for an actual scheduling instant. (ii) A first SU indicates a time cycle, or time period, for scheduling disparate scheduling units in the control channel associated with the BCH. (iii) A first SU carries a time indication to a second SU in a same control channel, the second SU indicates a time at which a third SU is to be scheduled.09-18-2008
20130215878Method and system for medium access control (MAC) layer specialization for voice and multimedia data streams - Aspects of a method and system for medium access control (MAC) layer specialization for voice and multimedia data streams are presented. Aspects of the method include determining a number of attempts for transmitting one or more medium access control (MAC) frames. Aspects of the system may include a processor that enables determination of a number of attempts for transmitting one or more MAC frames. A maximum number for such attempts may be determined based on one or more priority levels associated with different portions of multimedia information being communicated via a wireless medium and contained within the one or more MAC frames.08-22-2013
20090190565ACQUISITION OF TIMING INFORMATION IN WIRELESS COMMUNICATION SYSTEMS - A method for identifying a reference point in time in a wireless communication system includes: receiving a first repeated sequence of symbols; receiving a second repeated sequence of symbols; performing an autocorrelation between the first and second sequences of symbols; and identifying as the reference point in time an autocorrelation null between the first and second repeated sequences of symbols. Apparatus for identifying a reference point in time in a wireless communication system includes: means for receiving a first repeated sequence of symbols; means for receiving a second repeated sequence of symbols; means for performing an autocorrelation between the first and second sequences of symbols; and means for identifying as the reference point in time an autocorrelation null between the first and second repeated sequences of symbols.07-30-2009
20090141697TRANSMISSION OF A DATA STREAM USING OFDM SYMBOLS AT TWO CARRIER FREQUENCIES HAVING OVERLAPPING SUPERFRAMES OF A COMMENSURABLE TIME DURATION - In a method for transmitting a data stream in a digital transmission system, 06-04-2009
20090185546APPARATUS AND METHOD OF OPTIMIZING SLOT LOCATIONS FOR WIRELESS SENSORS - A wireless communication system includes a network controller configured to manage communication time periods in a wireless network, and a plurality of peripheral devices connected to the network controller through the wireless network. Each peripheral device is associated with a respective contiguous communication time period during which communications between the network controller and the peripheral device are allowed. The network controller is further configured to identify an open communication time period associated with one of the plurality of peripheral devices that has no communication between the network controller and the one of the plurality of peripheral devices and associate another of the plurality of peripheral devices that is associated with a different communication time period with the identified open communication time period.07-23-2009
20080316995BROADCAST CHANNEL SIGNAL AND APPARATUS FOR MANAGING THE TRANSMISSION AND RECEIPT OF BROADCAST CHANNEL INFORMATION - The present invention provides a broadcast channel signal and apparatus for managing the transmission and receipt of broadcast channel information, where a known difference in the data prior to encoding for transmission produces a predictable difference, which can be removed or cancelled from the multiple received active frames, such that their differences can be negated prior to combining and subsequently decoding. In at least one embodiment one or more applied linear encoding techniques can allow for a predictable difference in the encoded values based upon a knowledge of the difference prior to encoding.12-25-2008
20090141696METHOD FOR BANDWIDTH RECOVERY OF COMMUNICATION SYSTEM - A bandwidth recovery method for a communication system includes: transmitting a first uplink scheduling message to at least a first communication node and a second communication node of a plurality of communication nodes in the communication system; detecting if a communication channel is in an idle state after a first transmission start time; then, transmitting a second uplink scheduling message to the plurality of the communication nodes when the communication channel is found to be in the idle state after the first transmission start time.06-04-2009
20090041001APPARATUS AND METHOD FOR MOVING A RECEIVE WINDOW IN A RADIO ACCESS NETWORK - A method of moving a receiving window in a wireless mobile communication system, wherein the AM RLC of the transmitting side sends information of the last discarded SDU regardless of continuity of the discarded SDUs. The AM RLC of the receiving side checks whether all SDUs from the start point of the receiving window up to the last discarded SDU are successfully received, delivers the SDUs that are successfully received to an upper layer, and discard only those SDUs that are not successfully received.02-12-2009
20090086703METHOD AND SYSTEM FOR UTILIZING UNDERSAMPLING FOR CRYSTAL LEAKAGE CANCELLATION - Methods and systems for utilizing undersampling for crystal leakage cancellation are disclosed and may include undersampling a composite signal comprising a desired signal and leakage signals due to one or more clock signals. Measured DC signals generated by each of the undersampled signals may be reduced by adjusting the phase and/or amplitude of the clock signals. The undersampling may be performed at one or more of the one or more clock signals, or at integer sub-harmonics of the clock signals. The composite signal may include a signal received by a wireless system or a signal to be transmitted by the wireless system. The undersampled signals may be low-pass filtered. The desired signal may include in-phase and quadrature signals or a polar signal. The undersampling may be performed by one or more sample and hold circuits and the clock signals may be generated utilizing one or more crystal oscillators.04-02-2009
20100002676RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION DEVICE - Provided is a radio communication method capable of easily realizing multi-access in an ad-hoc network using a directive radio wave. In the ad-hoc network using the directive radio wave of the method, two PNC (A01-07-2010
20090316676Method and Apparatus for Coupled Sounding - In accordance with an example embodiment of the present invention, an apparatus, comprising a processor configured to derive a time period; and a transmitter configured to transmit a first signal and a second signal to a network element, wherein the second signal is coupled to the first signal in a predetermined way within the time period, is disclosed.12-24-2009
20090201906Wireless transmitter device and method thereof for keeping the total transmission time limited - A wireless transmitter device has a predetermined upper limit of an accumulated data transmission time per predetermined duration corresponding to a predetermined maximum value. The wireless transmitter device includes a timer which starts keeping time when the wireless transmitter device sends a wireless signal and stops when it reaches a timeout value, a total transmission measurer for measuring the data transmission time of the wireless transmitter device during a period from the timer starting to stopping, and a transmission controller for refraining the data transmission at the earliest until the time being measured by the timer reaches the timeout value if the accumulation time is, or likely to be, equal to or larger than a threshold value.08-13-2009
20090097467RADIO COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A radio communication system of a frequency hopping system, which carries out time division multiplex by TDMA and carries out communications while changing over two or more frequencies with respect to a radio link, wherein radio resources are efficiently utilized by establishing a plurality of radio links. A first communication apparatus periodically transmits control data by a frame cycle and a second communication apparatus which is a communication partner thereof receives the above-described control information during standby and secures synchronization in timing of frames and slots and timing of frequency hopping. Communication signals between both communication apparatuses and control information are overlapped in a slot to establish radio links. Once radio links are established in a plurality of slots other than a slot for transmitting control information, control is performed such that the control information is overlapped in the slots in which a radio link is established.04-16-2009
20110228759ENCODING RATIO SETTING METHOD AND RADIO COMMUNICATION DEVICE - Disclosed are an encoding ratio setting method and a radio communication device which can avoid encoding of control information at an encoding ratio lower than necessary and suppress lowering of the transmission efficiency of the control information. In the device, an encoding ratio setting unit (09-22-2011
20090161651METHOD OF TRANSMITTING BROADCAST MESSAGE IN A MOBILE WIRELESS COMMUNICATION SYSTEM - A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system is disclosed. More specifically, a base station determines whether a periodic enhanced broadcast page is enabled or disabled, and then transmits at least one broadcast message via a first slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast page is enabled.06-25-2009
20090141698BINARY-TREE MULTIPLEXING SCHEDULING - Multiplexed scheduling of information blocks from multiple sources on a single communication channel divided into multiple address positions is performed. The information block from each source has a repetition period and is divided into a number of segments. A bandwidth adequacy verification is performed for expected information blocks to be scheduled on the channel. Mapping positions are assigned corresponding to nodes in a binary tree, whereby each layer of the binary tree corresponds to a repetition period of the respective information block. Assignment of the information blocks to the binary tree is based on a priority order of repetition period of the respective information block.06-04-2009
20090201907MULTI-HOP COMMUNICATIONS IN A WIRELESS NETWORK - Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve wireless communications wherein a module or communications device is configured to select first and second terminal pairs, the first terminal pair having a first transmitting terminal and a first receiving terminal, and the second terminal pair having a second transmitting terminal and a second receiving terminal, schedule a first signal transmission from the first transmitting terminal to an intermediate terminal, the first signal transmission being destined for the first receiving terminal, schedule, simultaneously with the first signal transmission, a second signal transmission from the second transmitting terminal to the second receiving terminal, and schedule a power level for each of the first and second signal transmissions that satisfies a target quality parameter for each of the intermediate terminal and the second receiving terminal.08-13-2009
20090245224METHOD AND APPARATUS FOR PROVIDING QUALITY OF SERVICE IN WIRELESS NETWORKS AND SENSOR NETWORKS - A method and apparatus that provides quality of service in wireless or sensor networks is disclosed. The method may include determining a class of service for transmission of one or more messages, adjusting a maximum packet length based on the determined class of service, allocating message time slots based on the determined class of service, setting a guard band size and frequency of resynchronization, and transmitting one or more messages using the adjusted maximum packet length, the allocated message time slots, and the set guard band size and frequency of resynchronization.10-01-2009
20090225741WIRELESS SYSTEM USING A NEW TYPE OF PREAMBLE FOR A BURST FRAME - The present invention relates to a signal generator and signal processor for single carrier wireless communication systems with frequency domain equalizer, which are operable to use pseudorandom-noise sequences as part of a preamble and possibly as cyclic prefix. The different arrangements and examples of said pseudorandom-noise sequences could be used for coarse timing synchronization, channel estimation, carrier synchronization, signal-noise-ratio estimation and channel equalization.09-10-2009
20090219914BASE STATION, MOBILE STATION, AND METHOD OF COMMUNICATING - A base station is disclosed. The base station includes a transmitting unit which variably controls a TTI length including multiple subframes, each of which is to be allocated to a mobile station, and transmits to the mobile station scheduling information which indicates allocation of wireless resources to each user; a receive-acknowledgment determining unit which determines whether a receive acknowledgment for the scheduling information is reported from the mobile station; and a shared-channel transmitting unit which transmits a shared channel if it is determined that the receive acknowledgment is received.09-03-2009
20090219913Communication Device and Method of Controlling Communication Device - In a base station device 09-03-2009
20090219912SCHEDULING DEPENDING ON QUALITY OF SERVICE AND CHANNEL PROPERTIES - A method is described for scheduling a plurality of data flows to a plurality of shared channels in a wireless communication system transmitting data packets in time intervals of frames and applying adaptive modulation and coding. The method comprises the steps of determining virtual link adaptation parameters for at least a part of all combinations of data flow and shared channel, based on state information from the respective shared channel, and based on Quality of Service requirements for the respective data flow; calculating potential data rates for said combinations of data flow and shared channel, based on said virtual link adaptation parameters; calculating priority values for said combinations of data flow and shared channel, based on said potential data rates; and selecting, based on the calculated priority values, for at least a part of the shared channels, a data flow for which data is to be transmitted on each of these shared channel during the time interval of one frame.09-03-2009
20090252143METHODS AND APPARATUS FOR DELAYED BLOCK ACKNOWLEDGEMENT IN A WIRELESS LOCAL AREA NETWORK (WLAN) - Methods and apparatus for delayed block acknowledgments in a WLAN. In an aspect, a method is provided for communication with one or more nodes. The method includes transmitting to the one or more nodes a block comprising data and a first bit indicating no acknowledgements for the data are to be transmitted from the one or more nodes. The method also includes determining whether a selected time location within a transmit time duration has been reached, wherein if the selected time location has been reached, transmitting to the one or more nodes a second bit indicating that the one or more nodes are to transmit one or more acknowledgements, respectively, for the data. The method also includes receiving at least one acknowledgment for the data within a remaining portion of the transmit time duration.10-08-2009
20090219911PHYSICAL CHANNEL SEGMENTATION IN WIRELESS COMMUNICATION SYSTEM - A wireless communication transmitter (09-03-2009
20090252144System and method for asynchronous wireless collision detection with acknowledgment for ad hoc wireless networks - The present disclosure relates generally to a system and method for asynchronous busy-tone multiple access with acknowledgement for ad hoc wireless networks. In one example, the method includes emitting a tone after determining that a transmission is incoming from a sending node. An initial portion of a packet comprising the transmission is received while emitting the tone, where the initial portion contains a destination address of the packet. The emitting of the tone is stopped if the received destination address does not match an address of the receiving node. A remaining portion of the packet is received while continuing to emit the tone if the received destination address matches the address of the receiving node.10-08-2009
20090257421WIRELESS COMMUNICATION SYSTEM, MOBILE STATION DEVICE, AND RANDOM ACCESS METHOD - A wireless communication system includes a base station device and a mobile station device that tries a random access to the base station device. The mobile station device determines an upper limit of a random backoff time representing an interval from when the random access fails to when another random access is retried based on a relationship between the mobile station device and the base station device.10-15-2009
20090257420Process Control System With Enhanced Communication Throughput Using Frequency Agility - A process control system having wireless nodes (field devices, routers, wireless gateways, etc.) communicating with enhanced throughput using frequency hopping. The frequency channel using which each node transmits is determined by frequency agility/frequency hopping technique. Multiple nodes then transmit the packets in their respective channels, but in overlapping duration. In one embodiment such a technique is employed in combination with TDMA, with the boundaries of time slots being ‘global’ (same for all the nodes in the network) and thus the overlapping duration equals the duration of the time slot. In an alternative embodiment employed in combination of SDMA, each node transmits in a (substantially) non-overlapping corresponding beam area, but without reference to global boundaries. In yet another alternative embodiment, a combination of SDMA, TDMA and overlapping duration is used.10-15-2009
20090245225Method and Apparatus of Transmission Time Interval Bundling Management - A method for managing transmission time interval bundling transmission in a user equipment of a wireless communication system includes forming a plurality of packets to be transmitted, and selecting a fixed time interval or a dynamic time interval for repeatedly transmitting each packet of the plurality of packets to a network end of the wireless communication system.10-01-2009
20090245223Techniques for reducing buffer overflow in a communication system - A technique for operating a wireless communication device includes transmitting a first downlink rate in a first control message. The first downlink rate is based on a latency of an inter-processor communication link associated with the wireless communication device. First downlink data at the first downlink rate is then received for a first time period. Following the first time period, second downlink data is received at a second downlink rate that is higher than the first downlink rate.10-01-2009
20090257424TRANSMISSION METHOD, SYSTEM, TRANSMITTER, RECEIVER AND METHOD FOR REALIZING INFORMATION TRANSMISSION - A transmission method includes: confirming a reference time; according to the bit property of the data to be transmitted and the reference time, inserting the time slice signal into a special time position of a data frame; transmitting the data frame in which the time slice signal has been inserted and the time slice signal. And a method for realizing information transmission includes: according to the information unit to be transmitted, the transmitter sets the time parameters of the signal transmission during a special time period; the receiver receives the information unit according to the property of the received signal in a determined time period. This invention also provides a transmission system, a transmitter and a receiver. This invention can transmit signaling and messages among multiple systems, in order to solve the signaling interaction problem in the processes of coexisting negotiation and quick switching of the multi-mode terminal in a multi-system or a mixed type network.10-15-2009
20080259899Apparatus and method for uplink scheduling considering characteristic of power amplifier in mobile communication terminal - An UpLink (UL) scheduling method and apparatus considering a characteristic of a power amplifier in a mobile communication terminal are provided. The UL scheduling method includes calculating a packet transmission time, which minimizes energy consumed in packet transmission, by using a Direct Current (DC) voltage used in a power amplifier for signal amplification and by using nonlinear amplification efficiency; and scheduling UL data by using the calculated packet transmission time.10-23-2008
20080259897Method and Arrangement for Wireless Communication of Signals in a Mr System - A method and an arrangement for uni- or bidirectional wireless communication of signals or data especially in a reflective environment like a MR imaging system, between at least one first transmitter and/or receiver unit (10-23-2008
20080259896Device, Method And Protocol For Private Uwb Ranging - An apparatus, system, method and computer program product for secure ranging between at least two devices in radio communications with each other. In particular, an apparatus, system, method and computer program product for secure ranging between at least two devices communicating via ultra wideband (UWB) protocols. Either ternary-IR or time-hope-IR sequences are used for ranging and security. A first device transmits a range packet. A second device responds to the range packet after a delay time known only to the first and second devices. The delay time can be selected randomly by either to the first device or the second device and made known to the other device in an encrypted notification packet.10-23-2008
20090274137Method And System For Establishing A System Time Within A Mobile Ad Hoc Network - A mobile ad hoc network, a mobile ad hoc network node and a method for establishing a system time within a mobile ad hoc network are provided. The network nodes may include a global positioning system (GPS) receiver for receiving GPS signals and for providing a GPS time derived from the GPS signals. The GPS time may be employed by the network node as the system time. Even though the network nodes of a mobile ad hoc network independently determine the GPS time and, in turn, the system time, the system time will be common for each of the network nodes. Mobile ad hoc network nodes may therefore join and leave the mobile ad hoc network with each network node being able to determine the system time prior to its joinder based upon the GPS time provided by the respective GPS receiver.11-05-2009
20090257422TIME SLOT SYNCHRONIZED, FLEXIBLE BANDWIDTH COMMUNICATION SYSTEM - One or more frame slots to each transceiver are allocated for communication within each message cycle. The number of frame slots allocated can be dynamically adjusted to accommodate variable traffic loads per transceiver, and an offset of the frame slots within the message cycle is preferably predefined to provide a uniform distribution among the transceivers. The design of the transceiver is independent of the particular application, having at least one programmable parameter that controls the number of frame slots allocated within the message cycle. By controlling the number of frame slots allocated to a transceiver, the amount of inactive time, and hence battery life, can be controlled. When a conflict occurs among multiple transceivers having pending messages at the same frame slot, the allocation of the frame slot to a transceiver is based at least in part on the resultant lag time to each transceiver.10-15-2009
20100014504Multiple-Input Multiple-Output System And Method - A multiple-input multiple-output (MIMO) system can transmit on multiple antennas simultaneously and receive on multiple antennas simultaneously. Unfortunately, because a legacy 802.11a/g device is not able to decode multiple data streams, such a legacy device may “stomp” on a MIMO packet by transmitting before the transmission of the MIMO packet is complete. Therefore, MIMO systems and methods are provided herein to allow legacy devices to decode the length of a MIMO packet and to restrain from transmitting during that period. These MIMO systems and methods are optimized for efficient transmission of MIMO packets.01-21-2010
20100157971Power-efficient media access techniques for wireless networks - Techniques for media access in wireless networks are disclosed. For instance, embodiments may provide a time interval for accessing a wireless communications channel. In addition, embodiments may prevent channel access during the time interval by stations incapable of employing a first channel access technique. This access technique employs an access probability P.06-24-2010
20100182990Apparatus and Method of Controlling Transmission in Reverse Direction - Briefly, a wireless communication system that includes an Initiator and a Responder to transmit an aggregation of data units in a reverse direction is provided. The Initiator includes a medium access controller capable of allocating a time slot for exchanging one or more transmissions of aggregation of data units with the Responder. The medium access controller includes a channel access scheme, which is able to allocate the time slot for the Responder to transmit the aggregation of data units in the reverse direction, and to grant Originator rights of the Initiator to the Responder within said time slot.07-22-2010
20100260165REMOTE I/O SYSTEM AND SYNCHRONIZATION METHOD IN THE SAME - The object of the present invention is to provide a synchronization method that enables more accurate synchronization on a clock included in each I/O node, in a node that forms a remote I/O system where a master node and I/O nodes communicate each other.10-14-2010
20100260164METHOD FOR TRANSMITTING DATA IN WIRELESS COMMUNICATION SYSTEM - A method for transmitting data in a wireless communication system is provided. The method includes: transmitting first data through a radio resource allocated in a unit of a default transmission time interval (TTI) including at least one sub-frame in a frame including a plurality of sub-frames consisting of a plurality of orthogonal frequency division multiplexing (OFDM) symbols; and transmitting second data through a radio resource allocated in a unit of a modified TTI obtained by changing the number of sub-frames included in the default TTI in the frame.10-14-2010
20100177760SYSTEMS AND METHODS FOR IMPROVED DIGITAL RF TRANSPORT IN DISTRIBUTED ANTENNA SYSTEMS - Systems and methods for improved digital RF transport in a DAS are provided. In one embodiment, a transceiver comprises: a receive path circuit including an RF reception interface coupled to an ADC, the ADC receiving a down-converted analog RF spectrum from the RF reception interface and producing a digitized RF spectrum at an input sampling rate; a logic device receiving the digitized RF spectrum and producing a first set of baseband data samples at a first sampling rate, corresponding to a first spectral region of the analog RF spectrum and a second set of baseband data samples at a second sampling rate, corresponding to a second spectral region of the analog RF spectrum. The logic device maps the first set and second sets of baseband data samples to a respective first set and second set of timeslots of a serial data stream transport frame.07-15-2010
20100177759SYSTEMS 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.07-15-2010
20100220709Sequence Number Update - The invention relates to a method and device in a communications network when a User Equipment, UE, needs to update a next expected Transmission Sequence Number, TSN, continuously in order to avoid discarding successive transmissions. The method comprises: resetting a next expected TSN value in said network and UE to predetermined values after a predetermined inactivity time.09-02-2010
20120127985ROBUST TRANSMISSION SCHEME FOR WIRELESS NETWORKS - Systems and methods are described that facilitate assigning a predefined manner in which interfering transmissions may be fully or partially orthogonalized, as well as transmission time periods during which the orthogonalization protocol(s) may be employed. Depending on interference conditions, flexible resource reuse may be implemented to mitigate interference without unduly taxing resources. The subject of the innovation may be employed in, for instance, an ad hoc or unplanned/semi-planned wireless communication environment.05-24-2012
20100208719COMMUNICATION DEVICES FOR NETWORK-HOPPING COMMUNICATIONS AND METHODS OF NETWORK-HOPPING COMMUNICATIONS - Wireless communication devices include a software-defined radio coupled to processing circuitry. The processing circuitry is configured to execute computer programming code. Storage media is coupled to the processing circuitry and includes computer programming code configured to cause the processing circuitry to configure and reconfigure the software-defined radio to operate on each of a plurality of communication networks according to a selected sequence. Methods for communicating with a wireless device and methods of wireless network-hopping are also disclosed.08-19-2010
20090040998METHOD OF TRANSMITTING CHANNEL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting channel information in a wireless communication system includes generating a channel quality indicator (CQI) including a channel variation indicating temporal changes in downlink channel condition, and transmitting the CQI through an uplink physical channel. Since a modulation and coding scheme is determined by considering changes in channel environment, reception performance of a user equipment can be improved and reliable service can be provided.02-12-2009
20090040999METHOD OF TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting control information in a wireless communication system includes configuring a burst including data symbols and a midamble and transmitting the burst through an uplink shared channel. The data symbols and the midamble carry the same control information. Even if control information is transmitted on an uplink shared channel, reception errors in a base station can be reduced by improving transmission reliability.02-12-2009
20090041000Communication Apparatus, Transmitting Method and Receiving Method - A communication apparatus that performs receiving processing of data transmitted at timings of a predetermined interval, the communication apparatus having a transmitting unit configured to transmit a signal indicating that a data is successfully received when the data transmitted at M02-12-2009
20090041002Estimation of interference variation caused by the addition or deletion of a connection - A method for determining whether a connection event between a base station and a wireless transmit/receive unit (WTRU) should be accepted or rejected, comprises measuring the interference level I02-12-2009
20090040997BROADCASTING RECEIVER AND BROADCAST SIGNAL PROCESSING METHOD - A digital broadcasting system which is robust against an error when mobile service data is transmitted and a method of processing data are disclosed. The mobile service data is subjected to an additional coding process and the coded mobile service data is transmitted. Accordingly, it is possible to cope with a serious channel variation while applying robustness to the mobile service data.02-12-2009
20090059887SYSTEM AND METHOD FOR SCHEDULING AND TRANSFERRING DATA THROUGH A TRANSMISSION SYSTEM - A system and method for dynamically dividing the capacity of a fixed time division multiplexing (TDM) frame between physical channels for data transmission. According to various embodiments, a time frequency frame is divided into a plurality of subframes, and each of the plurality of subframes are divided into a plurality of corresponding slots. The plurality of slots are then selectively time shifted such that a defined time shift exists between corresponding slots in each subframe within the time frequency frame. For any slots or slot portions which have been selectively shifted beyond the end of the time frequency frame, such slots or slot portions are cyclically shifted to the beginning of the frame. Service data is then written into the slots of the time frequency frame, and the frame containing the service data can then be transmitted. Initialization and service access processes for a receiver are also provided.03-05-2009
20090323665METHODS AND APPARATUS FOR PROVIDING QUALITY OF SERVICE IN A PEER TO PEER NETWORK - Methods and apparatus related to scheduling traffic slots in a wireless communications system, e.g., an ad hoc peer to peer communications network are described. An implemented timing structure includes multiple traffic transmission slots and multiple request blocks with different priorities corresponding to a traffic transmission slot. A wireless terminal determines its own block priority level. If a wireless terminal's determined block priority level is the highest block priority level the wireless terminal is allowed to transmit a traffic transmission request in the highest traffic transmission request block; otherwise, the wireless terminal is restricted from transmitting a traffic transmission request in the highest priority request block. A wireless terminal monitors for request and/or request response activity corresponding to other connections high priority block signaling, and uses the collected information to determine its own block priority.12-31-2009
20090073952METHOD AND APPARATUS FOR RETRANSMITTING DATA IN WIRELESS LAN SYSTEM USING VISIBLE LIGHT COMMUNICATION - A method for retransmitting data when data transmission/reception has failed in a wireless LAN system using visible light communication. A mobile node searches a received frame for a fast feedback slot allocated for retransmission information when momentary data transmission/reception failure has occurred. One mini-slot from among the plurality of mini-slots is selected from the fast feedback slot. The mobile node transmits a fast feedback message, including information for retransmission, to an access point by using the selected mini-slot.03-19-2009
20090190566METHOD AND APPARATUS OF CONTROLLING ACCESS MODE FOR COMMUNICATION SYSTEM USING SHARED OR UNLICENSED BAND - A technology that can adaptively control an access mode according to a shared band or an unlicensed band used by an adjacent communication system. An access mode controlling apparatus includes a band recognition unit to recognize a usage rate of an unlicensed band or a shared band that is used by an adjacent communication system of a target communication system; a mode determination unit to determine, as an access mode, any one of a contention access mode and a contention-free access mode, based on the usage rate of the unlicensed band or the shared band; and an information transmitter to transmit mode information associated with the determined access mode to member nodes or a base station of the target communication system.07-30-2009
20090323666METHOD AND APPARATUS FOR DATA AND PILOT STRUCTURES SUPPORTING EQUALIZATION - Techniques for transmitting data in a manner to facilitate equalization at a receiver are described. Guard intervals are appended to data blocks such that each data block has a guard interval at the beginning of the data block and a guard interval at the end of the data block. Each guard interval may be discontinuous transmission (DTX), a polyphase sequence, or some other known sequence. Pilot is appended to each set of at least one data block. The data blocks, pilot, and guard intervals may be sent using various slot structures and are processed for transmission. The processing may include mapping the data blocks to at least one physical channel, channelizing the data blocks for each physical channel with a channelization code, combining all physical channels, and scrambling the combined data, pilot, and guard intervals with a scrambling code.12-31-2009
20110211569METHOD, APPARATUSES AND COMPUTER PROGRAM PRODUCTS FOR TRANSMISSION DIVERSITY - The invention is related to an apparatus comprising: a grouper configured to group antennas into antenna groups, if more antennas suitable for transmission are provided than pilot resources per a time slot; a rotator configured to rotate selected symbols with antenna-specific or antenna group-specific, and/or data symbol-specific phases; a transmitter configured to transmit symbols using a first antenna or antenna group of a user device and the rotated symbols using at least one second antenna or antenna group of the user device.09-01-2011
20110032926METHOD FOR INTERFERENCE RANDOMIZATION OF PHYSICAL UPLINK CONTROL CHANNEL - A method for interference randomization of physical uplink control channel (PUCCH), which is used in long term evolution (LTE) system, when multiple terminals multiplex PUCCH to transmit uplink control signallings, the difference of index of control channel resource used by any two terminals in the first timeslot of PUCCH is different from the difference of index of control channel resource used by the two terminals in the second timeslot of PUCCH. The invention can realize interference randomization between UEs that multiplex the same PUCCH.02-10-2011
20110032925METHOD OF TRANSMITTING GROUP ACK/NACK IN A COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more particularly, to a method of transmitting feedback, by which a signaling overhead can be efficiently reduced. In receiving a group feedback by a transmitting end in a wireless communication system, the present invention includes transmitting at least one data unit to a receiving end during a prescribed time interval and receiving a group feedback indicating a presence or non-presence of error for the overall at least one data unit from the receiving end. Accordingly, a transmitting/receiving end of a communication system transceives a group feedback for multiple feedbacks indicating an error presence or non-presence of overall data received in TTI, thereby reducing a signaling overhead.02-10-2011
20080310387PROTOCOL DATA UNIT PRIORITY MANAGEMENT - A single receiver can collect multiple protocol data units at one time originating from different sources. While it can be desirable for higher priority protocol data units to be processed, loss of data unit portions can cause confusion to the receiver. Therefore, even if a higher priority protocol data unit transfers to the receiver while a lower priority data unit is being processed, the lower priority unit can be completed before processing the higher priority unit; thus, there can be a lower likelihood of confusion among protocol data units.12-18-2008
20090109950METHODS AND APPARATUS FOR COMMUNICATING INFORMATION USING DIFFERENT TYPES OF SYMBOLS - Methods and apparatus implementing communications using different types of symbols, e.g. different characteristic OFDM symbols, at different times for different purposes are described. A first type of symbol is used for control signaling including conveying transmission request signals and/or transmission request response signals. A second type of symbol is used for conveying user data, e.g., traffic signals. The symbol period for a first type symbol is larger than the symbol period for a second type symbol. The tone spacing for a first type symbol is larger than the tone spacing for a second type symbol. The methods and apparatus are well suited for peer to peer communications systems in which a peer to peer communications device operates in a half-duplex mode of operation.04-30-2009
20090109949METHODS AND APPARATUS RELATED TO SIGNALING REQUEST TO TRANSMIT TRAFFIC IN A WIRELESS COMMUNICATIONS SYSTEM - Methods and apparatus related to the communication of traffic in peer to peer communications are described. A peer to peer communications system includes traffic slots, and for a pair of devices having a connection a first transmission request resource and a second transmission request resource are associated with a traffic transmission interval of the traffic slot, the first request resource preceding the second request resource. The first request resource is used for the first device to communicate a request to transmit traffic to the second device. The second request resource is used to communicate a request from the second device to transmit traffic to the first device. One protocol calls for a second resource request to override a first resource request. In another protocol the second resource is used to communicate additional information corresponding to a first resource request, when a request is communicated in the first resource.04-30-2009
20090109951Method and Apparatus for Counting Transmission Times of a PDU - A method and apparatus for counting transmission times of a protocol data unit (PDU) in a wireless communications system is disclosed, so as to trigger a specific operation of the PDU. The method includes performing a first transmission of the PDU and configuring a counter corresponding to transmission times of the PDU; and counting one times to the counter if a transmission includes any part of the PDU after the first transmission of the PDU is performed.04-30-2009
20100278170SERVER, SYSTEM AND METHOD THAT PROVIDING ADDITIONAL CONTENTS - Disclosed is a server, a system, and a method for providing additional content simultaneously with main content. The system includes: a server for multiplexing a second content with a first content which is streaming-transmitted, and streaming-transmitting, to a terminal, a mixed content produced by multiplexing the second content with the first content; and the terminal for receiving the mixed content, demultiplexing the mixed content to separate the second content from the first content, streaming-reproducing the first content, and storing the separated second content therein. Accordingly, the system does not need a configuration of another system for providing additional content, which presents separate conditions for providing the additional content and determines if the separate conditions are satisfied. Namely, if a condition for receiving only a particular period of the particular content is satisfied, a user of the terminal can receive and use the additional content along with the particular content.11-04-2010
20100303055Method for Assigning Data Messages to Time Slots in a Wireless Data Bus System Having Hidden Subscribers - A method for assigning data messages to time slots in a wireless data bus system having hidden subscribers (“hidden nodes”), wherein each subscriber is initially assigned at least one time slot for exclusive use per transmission cycle and the time slot can be engaged by another subscriber for use in the event of non-use by the subscriber. Moreover, an engagement matrix is provided which records, for each subscriber, those time slots of other subscribers for which engagement is permitted in a data message cycle. In accordance with the invention, the engagement matrix is configured to block at least the engagement of the time slot of another subscriber for a subscriber if it is another subscriber (“hidden node”) that cannot be reached by radio by the subscriber.12-02-2010
20100322227METHODS AND APPARATUS FOR COORDINATION OF SENDING REFERENCE SIGNALS FROM MULTIPLE CELLS - Methods and apparatus for coordination of sending reference signals in wireless network are disclosed. A network node may select a cell ID based on a measurement of adjacent cells so as to mitigate interference. A network node may communicate information to another network node to control transmitted resources in a protected interval so as to measure channel characteristics.12-23-2010
20090129365CONTROL STATION, CONTROLLING METHOD THEREOF AND STORAGE MEDIA - This invention has as its object to reduce power consumption of dependent stations with low frequency of communication by controlling communications of the control station in a network. According to this invention, a control station communicating with dependent stations comprises a classification unit configured to classify the dependent stations connected to the control station into a plurality of groups; a first transmission unit configured to transmit first broadcast-frame to the dependent stations classified into first group; and a second transmission unit configured to transmit second broadcast-frame to the dependent stations classified into second group with lower frequency of communication compared to the first group, wherein the second transmission unit transmits the second broadcast-frame with a lower transmitting frequency compared to the first broadcast-frame transmitting frequency of the first transmission unit.05-21-2009
20100322228POWER SUPPLY CONTROL IN A WIRELESS RECEIVER - A wireless receiver is activated periodically to measure the level of received signals. It measures the average received level over a plurality of the activation periods, and enables the supply of power to receiver circuitry dependent on the measured average value. In one embodiment the power is enabled if an increase in the average value is detected which is greater than a predetermined margin. The average value may be measured in a sliding or stepped window. In another embodiment the power is enabled if the level in an activation period exceeds the average value by a predetermined margin.12-23-2010
20100322229METHOD FOR ALLOCATING DYNAMIC TRANSMIT TIME INTERVAL - A method for allocating various transmit time intervals (TTIs) if a sub-frame structure is used, in a radio access system is provided. A transmitter transmits a super frame header including TTI information of a sub-frame included in a super frame to a receiver and transmits a sub-map including resource allocation information to the receiver, thereby dynamically allocating the TTI. Since the TTI information may not be received via the sub-map in every sub-frame, it is possible to prevent waste of a radio resource.12-23-2010
20110002323DYNAMIC TIME INTERLEAVING METHOD AND AN ASSOCIATED DEVICE - The present invention relates to a time interleaving method (01-06-2011
20100329230Avoiding beacon conflicts in multi-radio platforms - In a multi-radio platform that operates in two networks, both the announced beacon intervals and the actual beacon intervals in one network may be periodically increased and decreased in defined amounts so that the beacons will not overlap scheduled communications with the other network. The determination of how much and how often to adjust these beacon intervals may be based, at least partially, on the minimum increments in which the beacons intervals are permitted to be adjusted, and on the scheduled communications intervals of the other network.12-30-2010
20090067404APPARATUS AND METHOD FOR RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method for random access in a wireless communication system are provided. In the method, a random access response message is received. The random access response message is analyzed to determine a status of a random access process. A count variable value is updated according to the status. And the count variable value is compared with at least one reference value to determine a random access period. By adaptively changing the period of periodic ranging in a wireless communication system, the probability of success is increased while the waste of resources is decreased.03-12-2009
20090034506Data Burst Communication Techniques For Use In Increasing Data Throughput To Mobile Communication Devices - Methods and apparatus for use in increasing data throughput to mobile stations in a wireless communication network, where data is communicated between mobile stations and the wireless network in a plurality of data bursts within time slots assigned to the mobile station. One illustrative method includes the acts of receiving, through a wireless transceiver, data in a time slot W; tuning the wireless transceiver, during a first portion of a time slot X which follows the time slot W, for transmission; reading transmit data from a transmit data queue and encoding the transmit data in a data burst in accordance with a data burst format; and causing the encoded transmit data to be transmitted in the data burst during a second portion of the time slot X. The data burst may be formatted in accordance with a predefined data burst format of the wireless network and merely shifted in time, or the data burst may be formatted in accordance with a reduced-size data burst format. When such alternate data burst technique is utilized, extra available time remains to tune the wireless transceiver from receive to transmit mode, or transmit to receive mode. Thus, an additional downlink time slot(s) per data frame may be allocated to the mobile station for increased data throughput, where at least one uplink time slot per data frame is utilized for data transmission.02-05-2009
20090067405COMMUNICATION OF CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEMS - A wireless system has a high rate data channel for time multiplexed communications to multiple mobile stations (MSs). Control channels include a forward link common power control channel and reverse link feedback channels for pilot, forward channel quality, and data acknowledgements from each MS. An MS can have an active state for data communications, for which these control channels are used at the full (time slot) rate, or a control hold state, in which acknowledgements are not needed and the others of these control channels can be shared among a plurality of MSs in the control hold state and each using a reduced rate such as ½, ¼, or ⅛ of the full rate. The arrangement can support an increased number of active MSs, facilitating an increased total throughput on the high rate data channel, without increasing system resources for the control channels.03-12-2009
20110116491IMPROVING TRANSMISSION OF MEDIA STREAMS OF BROADCAST SERVICES IN A MULTIMEDIA BROADCAST TRANSMISSION SYSTEM - In multimedia broadcast transmission a system a method and a device for improving transmission are provided. The optimization is achieved by the combination of a Virtual Time-Slice (VTS) solution within a broadcast service in which time-slice corresponding to a layered broadcast service and a feedback channel through a wireless access network. The VTS allows the system to set the layer content within a broadcast service time-slice according to the user's feedbacks. An optimization algorithm selects the appropriate number of enhancement layers mapped into VTSs. The users provide feedback information based on their own receiving capabilities or on subscription limitations. If a time-division multiplex multimedia broadcast network, e.g. DVB-H network is deployed next to the wireless access network, e.g. a 3G network, then these feedback information can be signaled via this network.05-19-2011
20100034187EFFICIENT PACKET HANDLING FOR TIMER-BASED DISCARD IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate efficient handling of packets (e.g., Packet Data Convergence Protocol (PDCP) Protocol Data Units (PDUs) or Service Data Units (SDUs)) in a wireless communication system. As described herein, a number of consecutive packets that are discarded due to a discard timer expiration event and/or other causes can be monitored and compared to a number of tolerated consecutive discarded packets. If the number of consecutive discarded packets does not exceed the number of tolerated consecutive packets, conventional processing operations such as header modification and compression, ciphering, or the like can be omitted for respective packets subsequent to a discarded packet, thereby significantly reducing processing overhead. As further described herein, the number of tolerated consecutive discarded packets can be chosen to maintain header compression (e.g., Robust Header Compression (RoHC)) synchronization, ciphering synchronization, and/or other suitable properties.02-11-2010
20110243120ANTENNA SOLUTION FOR NEAR-FIELD AND FAR-FIELD COMMUNICATION IN WIRELESS DEVICES - A single-antenna solution is provided for near-field and far-field communication in wireless devices. In an embodiment, a first transceiver block generates a first transmit signal to be transmitted using radiative techniques. A second transceiver block generates a second transmit signal to be transmitted using inductive coupling. The first and second transceiver blocks are coupled to a same antenna for transmitting the first transmit signal using radiative coupling, and the second transmit signal using inductive coupling. The first transceiver block and the second transceiver block operate according to time division multiplexing, and in an embodiment corresponding to an FM transceiver and an NFC transceiver.10-06-2011
20120243527Upstream burst noise measurement and characterization - Upstream burst noise measurement and characterization. One or more communication devices is implemented to detect and measure burst noise event(s) within channel(s) associated with communication link(s) within communication system(s) or network(s). Detection and measurement of a burst noise event may be made during active communications on one or more other channels, and may be made during active communications on two channels respectively adjacent to the channel on which the burst noise event is being detected and measured. The channel on which the burst noise event is detected and measured may be an unused channel. The detection and measurement of the burst noise event may be made during a quiet time slot within one of the channels. Correlation (e.g., with respect time) may be determined with respect to different respective layers within a communication device (e.g., with respect to MAC and PHY layers).09-27-2012
20100008348UPLINK TTI BUNDLING WITH MEASUREMENT GAPS - A method and apparatus for wireless transmit receive unit (WTRU) to transmit a time transmission interval (TTI) bundle. The TTI bundle conflicts with a measurement gap, and the WTRU is configured to construct TTI bundle comprising a plurality of sub-frames, determine at least one of the plurality of sub-frames is in conflict with a measurement gap, determine a first of the plurality of sub-frames not in conflict with the measurement gap, associate the first of the plurality of sub-frames not in conflict with the measurement gap with a first redundancy version (RV), and transmit the first of the plurality of sub-frames in association with the first RV.01-14-2010
20110142027METHOD OF SIGNAL TO TIME-SPECTRUM CHANNEL RESOURCE MAPPING FOR WIRELESS COMMUNICATION SYSTEM - A communication device and method of allocating spectrum resources in a communication system to protect data to be transmitted are disclosed. The communication channel resource is divided temporally to form regions. Data to be transmitted is separated into data portions. Each data portion is able to be transmitted over one of the regions. The data portions are prioritized based on the importance of the data portion. The regions are ranked based on the transmission reliability thereon. The prioritized data portions are mapped to the ranked regions such that more important data portions are mapped to more reliable regions and less important data portions are mapped to less reliable regions. The prioritized data is output temporally in order of importance to enable the mapping of the prioritized data.06-16-2011
20100008347SYSTEM AND METHOD FOR RANDOM ACCESS SCHEME IN A WIRELESS AD-HOC NETWORK - A system and method for random access scheme in a wireless ad-hoc network is disclosed. In one aspect, the method comprises transmitting data to a receiving node in a wireless ad-hoc network in a first time block previously reserved for transmission. The method further comprises transmitting data to the receiving node in a second time block if the reservation is periodic, the second time block starting at a time being a fixed amount of time L after the start of the first time block.01-14-2010
20110176533MOBILE COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, AND BASE STATION AND MOBILE STATION TO BE EMPLOYED IN THE SAME - In the communication system performing transmission with generating the vacant period in the slotted mode during data transmission in order to perform various process, such as different frequency carrier quality measurement or so forth, the control signal for maintaining a communication quality is inserted even in the vacant period. Therefor, a link quality may not be degraded even if the vacant period is long. Namely, when the pilot signal is used as the control signal, even in the vacant period, measurement of the link quality of the forward link with the pilot signal is performed in the mobile station to report the result of measurement to the base station. Therefore, transmission power control of the forward link can be performed according to the report in the base station. Therefore, degradation of the forward link can be eliminated.07-21-2011
20100135274HIERARCHICAL RANDOM ACCES METHOD FOR WIRELESS COMMUNICATION SYSTEM HAVING SIGNIFICANTLY LARGE CELL - Disclosed is a hierarchical random access method for a wireless communication system having a significantly large cell. According to the present invention, a length of a preamble sequence and a length of a reference slot may be designed based on a terminal having greatest capacity of adjusting a timing error arrived at a base station, and a slot length may be designed to be an integer multiple of the length of the reference slot depending on a timing error correction capacity, thereby enabling terminals to use various slot lengths.06-03-2010
20090154443METHOD AND ARRANGEMENT FOR TRANSFERRING INFORMATION IN A PACKET RADIO SERVICE - A method and an arrangement for transferring information including delay sensitive data, such as speech and video data, in a packet radio service is provided. Data blocks are transmitted from a mobile station to a radio resource entity during a first active data transfer period using an uplink temporary block flow (TBF) connection. The uplink TBF connection is maintained during a passive period that follows the first active data transfer period, wherein during the passive period the mobile station does not send data blocks to the radio resource entity.06-18-2009
20090213832TRANSMISSION RECEPTION APPARATUS OF DATA USING POLARIZATION TRANSMISSION IN LOS RADIO COMMUNICATION SYSTEM - Provided is a method and apparatus for transmitting and receiving data using a polarization transmission in a line-of-sight (LOS) radio communication system. An for transmitting data using a polarization transmission in a LOS radio communication system may include: an antenna unit including at least two antennas to transmit or receive via a different polarization path; a polarization data setting unit to set the different polarization path for each of the at least two antennas; and a resource allocation unit to set a transmission scheme according to a data characteristic and a service type, and to allocate a resource to be transmitted via the different polarization path according to the transmission scheme.08-27-2009
20090213831FAST AUDIO/VISUAL RECEPTION IN DVB-H SYSTEMS - An apparatus and method of reducing a channel switching delay in TDM mobile television systems, and comprises receiving a data burst associated with channels for reception on a RF channel bandwidth received on a mobile television receiver, wherein the data burst comprises a plurality of RTP packets and a RTCP packet; buffering the data burst upon reception of a first RTP packet; synchronizing the buffered data burst to allow for reception of playable A/V data; and adjusting the synchronized buffered data burst upon reception of the RTCP packet. The method may further comprise performing the synchronizing upon reception of the RTCP packet. The method may further comprise inserting a null packet in the data burst prior to performing the buffering. The first RTP packet is preferably received prior to reception of the RTCP packet.08-27-2009
20090213830COMMUNICATION SYSTEM - A communication system is disclosed. In one embodiment, the communication system includes a communication device set up to execute a process, configured to put itself into an activated state or into a deactivated state at alternate times, receive time information in a first operating state of the activated state, take the received time information as a basis for ascertaining the later time at which useful information is transmitted to the communication device, receive the useful information at the later time in a second operating state of the activated state. Individual components of the communication device are able to be put into an activated state or into a deactivated state independently of one another.08-27-2009
20110080903CODING A CONTROL MESSAGE WITH DETERMINED DATA CODE BLOCK REPETITION - A method for coding control data with user data repetition is disclosed. Bits in user data may be removed. Bits in control data may be repeated to increase a number of bits in the control data. A number of bits in the user data that is the same as the number of bits in the control data may be copied. The copied user data bits may be added to the control data. The user data and the control data may be multiplexed.04-07-2011
20120120943ENHANCED WIRELESS HANDSET, INCLUDING DIRECT HANDSET-TO-HANDSET COMMUNICATION MODE - A wireless handset is provided with enhanced features and capabilities. The wireless handset may be embodied as a full-featured handset that is capable of operating either within a wireless network (such as a cellular or PCS network) or in a direct handset-to-handset communication mode that is independent of the wireless network. Alternatively, the wireless handset may be embodied as a special purpose handset, that is capable of simply operating in a direct handset-to-handset communication mode. The wireless handset may additionally include features for supporting and enhancing direct communication between handsets. Such features may include a find feature that permits a user to determine which objects, including other wireless handset users, are located within a predetermined operating range of the wireless handset. A memorize feature may also be provided to permit handsets and other objects exchange information by wireless transmission.05-17-2012
20110044315CONTROL APPARATUS, CONTROL METHOD AND COMPUTER PROGRAM OF COMMUNICATION SYSTEM - A control apparatus of a communication system that uses a plurality of communication paths from a transmission node to a reception node to redundantly transmit data is provided. The apparatus comprises: a setting unit for setting priorities to a plurality of partial data; a calculation unit for calculating the time slot number which is required to transmit the partial data on the communication paths; a selection unit for selecting one or more combinations of the partial data and the communication path. The selection unit selects the one or more combinations in descending order of the priorities of the partial data and selects the one or more combinations in ascending order of the required time slot number if the priorities of the partial data are equal.02-24-2011
20110044316METHOD AND APPARATUS FOR TRANSMITTING BROADCAST SIGNAL IN A TRANSMITTER - A method and apparatus for transmitting a broadcast signal in a transmitter are disclosed. The apparatus includes an RS encoder 02-24-2011
20100265933SYSTEMS AND METHODS FOR MANAGING DYNAMIC CLOCK OPERATIONS DURING WIRELESS TRANSMISSIONS - In accordance with embodiments of the present disclosure, an information handling system is provided. The information handling system may include a processor; a display coupled to the processor, the display comprising a pixel clock source configured to generate a pixel clock frequency; a memory device coupled to the processor, the memory device having a lookup table stored thereon; and a controller coupled to the processor and configured for: receiving frequency information associated with wireless transmissions of the information handling system; and dynamically adjusting the pixel clock frequency by selecting a frequency from the lookup table in response to a determination that the received frequency information is approximately equal to the pixel clock frequency.10-21-2010
20100296504METHOD, SYSTEM AND TERMINAL FOR SCHEDULING SYSTEM INFORMATION - Scheduling System Information (SI) in a radio communication system is disclosed. System Frame Number (SFN) and position of System Information is determined in accordance with the SFN. The SI-x is established, and all SIs on the radio frames are distributed discretely at different times for sending. An SI scheduling system and a UE are also disclosed. The technical solution under the present invention optimizes scheduling of SI, avoids excessive network load caused by sequentially sending of all SIs on different sub-frames, and improves the efficiency of scheduling user data.11-25-2010
20100296503COMMUNICATION APPARATUS, AND METHOD AND PROGRAM FOR CONTROLLING SAME - A communication apparatus communicates by switching between a first communication period in which contention access control is performed and a second communication period in which non-contention access control is performed. The apparatus determines the state of access contention in the first communication period, changes the frequency bandwidth of the first or second communication period in accordance with the determination and changes the time ratio between the first communication period and the second communication period in accordance with the change of frequency bandwidth.11-25-2010
20110249664COORDINATION-FREE RENDEZVOUS METHOD FOR A COMMUNICATION NETWORK - In a coordination-free rendezvous method for a communication network, time is divided into superslots with each superslot being further divided into slots. At least one first-class slot and at least one second-class slot are selected out of the slots of each superslot. The relative position between the first-class slot and the second-class slot is changed every superslot, thereby the first-class slots or the second-class slots between or among devices of the communication network may overlap each other in a periodic manner.10-13-2011
20100098048METHOD FOR HYBRID MEDIUM ACCESS CONTROL FOR VEHICLE COMMUNICATION - A method for hybrid media access control for vehicle communication is provided. The method divides a radio channel into time slots, which are predetermined time units, and sets terminals as owners or non-owners for the divided time slots to be able to access the channel. Accordingly, it is possible to reduce the probability of contention by distributed access to the slots and provide a MAC protocol having excellent performance.04-22-2010
20100098047Setting a data rate of encoded data of a transmitter - Embodiments for setting a data rate of encoded data of a transmitter are disclosed. One method includes determining a physical layer transmission rate based on a transmission link quality of a link, estimating a transmission throughput that can be transmitted over the link ensuring a level of Quality of Service (QOS) requirement, and the transmitter adjusting the data rate of the encoded data based on the estimated transmission throughput.04-22-2010
20110158220MEDIA ACCESS CONTROL METHOD IN WIRELESS NETWORK - A media access control method in a wireless network is provided. Each of devices in the wireless network determines one of a plurality of beacon slots within a beacon period as a beacon slot of the device. The devices in the wireless network determine a data transmission order in accordance with the slot numbers of the beacon slots of the devices in a reserved period of a data transmission period. Data is transmitted in the unreserved period in accordance with the determined data transmission order.06-30-2011
20100002677Filling the space-time channels in SDMA - Embodiments of the present invention provide an apparatus capable of filling space-time channels in Spatial-Division Multiple-Access (SDMA) in a Medium Access Control (MAC) protocol, comprising, a base station operable in a wireless network and adapted for uplink and downlink multi-user and multi antenna operation, the base station including a MAC scheduler to schedule transmissions using packet scheduling in the wireless network, and wherein the MAC scheduler schedules variable length packets for transmission using packet scheduling in the wireless network based on transmission times to transmit on each of M spatial channels to mobile stations operable in the wireless network by filling the M spatial channels using data packets buffered for the mobile stations operable to communicate with the base station.01-07-2010
20090316677Mobile Radio Apparatus - An mobile radio apparatus includes a data division section configured to divide an input data into a plurality of block data of different sizes, an encoding section configured to encode each block data, a rate matching processing section configured to adjust a division size of each encoded block data to a rate matching size so as to fit to a communication channel size, and a rate matching calculation section configured to obtain a rate matching size for each block data according to a ratio of the division sizes of the block data.12-24-2009
20090185547METHOD AND APPARATUS FOR IMPROVED MESSAGE DELIVERY FOR HIGHER PRIORITY NODES OR MESSAGES IN AN INDUSTRIAL WIRELESS NETWORK - A method includes communicating, during a first time slot, with a first wireless node in a wireless network. The method also includes determining that the communication with the first wireless node requires additional time beyond the first time slot. The method further includes identifying a priority associated with the first wireless node and a priority associated with a second wireless node in the wireless network, where the second wireless node is associated with a second time slot. In addition, the method includes communicating, during the second time slot, with the first wireless node when the priority associated with the first wireless node exceeds the priority associated with the second wireless node. The method may also include identifying routes through the wireless network for data associated with the first wireless node and data associated with the second wireless node. The routes may be based on the priorities of the wireless nodes.07-23-2009
20090129364METHOD FOR TRANSMITTING AND RECEIVING SAFETY MESSAGE - A method for a first mobile station to transmit a safety message to a second mobile station is provided. The first mobile station competitively transmits a non-safety message to the second mobile station during a first period. The first mobile station spreads a safety message and generates a spread message when a second period starts, and transmits the spread message to the second mobile station. Accordingly, safety message transmission delay or data loss in the inter-vehicle communication can be prevented.05-21-2009
20080304468Multiple Spatial Channel Transmission with Rate Control - A MIMO ARC transmitter derives demux streams (12-11-2008
20080267160Systems and Methods for Managing Timing Functions in Multiple Timing Protocols - One embodiment of the present invention includes a system for managing timing functions associating with at least one timing protocol. The system comprises a controller configured to implement a plurality of functions at each of a respective plurality of scheduled times. The system also comprises a time protocol converter configured to convert each of the plurality of scheduled times to a respective plurality of time values associated with a master timing protocol. The system further comprises a master timer controller configured to generate a plurality of control signals associated with the plurality of functions based on an accumulated value of a master timer associated with the master timing protocol relative to the plurality of time values.10-30-2008
20080267159Method and System for Providing Communication Between Several Nodes and a Master - A method for communication between several nodes and a maste: in a communication network, wherein each node is assigned a time slot in which to transmit. The nodes are arranged in groups, so that the first group comprises all nodes inside the coverage area of the master. The second group is outside the coverage area of the master but inside the coverage area of any node of the first group, etc. Any node reaches the master or is being reached by the master via a node in a previous group in a multi-hop approach. The time slots are assigned in dependence of the distance to the master. In a message period, in which the master sends a message to any node, the first group is assigned a first group of time slots, and the second group is assigned a second group of time slots, following the first group of time slots, etc. In this way, the message from the master can be sent out to all nodes in a single message period. When a node wants to send information to the master, the time slots are arranged in the opposite order, in an information period, which means that the information can reach the master in a single information period.10-30-2008
20080253352Communication in Dual Protocol Environments - A radio transceiver comprising: a signal receiver for receiving signals in the form of bursts according to a first protocol; a transmitter for transmitting signals in the form of bursts according to a second protocol, the first and second protocols being such that signals of the first and second protocols are mutually interfering; a transmission scheduler for predicting, based on the timings of signal bursts of the first protocol received by the receiver, the timings of future bursts of the first protocol and arranged to influence the transmitter to transmit bursts according to the second protocol so as to avoid the signal bursts of the first protocol as predicted.10-16-2008
20110164604METHOD AND DEVICE FOR CONTROLING SIGNAL TRANSMISSION - The method for controlling signal transmission comprises: determining the first reference variable according to the number of transition points from downlink to uplink in a wireless frame of the system and the system frame number (S07-07-2011
20100329232Methods and Systems for Communication Protocol for Distributed Asset Management - A sending device generates a MAC frame to be transmitted over a wireless network. The MAC frame indicates a frame transmission type. A payload portion of the MAC frame is defined in accordance with a payload specification of a distributed asset management protocol corresponding to the indicated frame transmission type. The MAC frame is transmitted over the wireless network and received by a receiving device that is defined to recognize the MAC frame as the indicated frame transmission type. The receiving device is defined to process the payload portion of the MAC frame in accordance with the payload specification of the distributed asset management protocol corresponding to the indicated frame transmission type. Network discovery includes successively transmitting the MAC frame at a defined interval during a first period of time. Then, the MAC frame transmission is ceased for a second period of time. Then, transmission of the MAC frame resumes.12-30-2010
20110134905DATA PROCESSING APPARATUS, COMMUNICATION DEVICE, AND DATA PROCESSING METHOD - A data processing apparatus includes a scrambling processing unit and a sending unit. The scrambling processing unit is configured to generate a Pseudo-Random Binary Sequence (PRBS), perform a modulo-2 addition on the pseudo-random sequence and data frame data to scramble the data frame data including first load data, use one section of a part of the pseudo-random sequence on which the modulo-2 addition is performed with the data frame data as an identification sequence, and carry status information corresponding to the identification sequence in frame header information. The sending unit is configured to send the frame header information carrying the status information and the scrambled first load data. Through the scrambling process, continuous run-lengths of “1” and “0” in the data frame data are quite short, while basically the same probability of occurrence is maintained, which is favorable to transmission of the data frame data, thereby alleviating error code problems.06-09-2011
20110134904METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A DATA SYMBOL STREAM - A transmitter comprises a block generator (06-09-2011
20100254368INFORMATION RECEIVING APPARATUS AND INFORMATION TRANSMITTING APPARATUS - [Problem] To allow an information receiving apparatus receiving a wireless packet for data streaming transmission from an information transmitting apparatus to communicate with another information transmitting apparatus.10-07-2010
20100165973METHOD AND APPARATUS FOR WIRELESS COMMUNICATION - A method for operating an electronic device using a first and a second communication protocols is provided. The electronic device includes an arbitrator to determine whether to communicate in accordance with the first or second communication protocol. The method estimates a period for transmitting a trigger frame by the electronic device, a period for receiving a first acknowledgement (ACK) frame by the electronic device, a period of a backoff procedure, a period for receiving a predetermined number of delivered frames by the electronic device, and a period of transmitting a second ACK frame by the electronic device. All the above estimated periods are added to be a predetermined time period. The trigger frame is transmitted to initiate the electronic device to communicate in accordance with the first communication protocol. The arbitrator determines whether to grant the electronic device to communicate in accordance with the second communication protocol based on the predetermined time period.07-01-2010
20110051710LEARNING WIRELESS MEDIUM ACCESS CONTROL FOR DISCRETE EVENT CONTROL SYSTEMS - A wireless data transmission method includes providing a plurality of radio frequency transmitters. A receiver is provided to receive transmissions from the transmitters. A data format including a plurality of transmission time slots is defined. A first subset of the plurality of transmitters that are apt to send the transmissions simultaneously is determined. Each of the transmitters in the first subset is assigned to a different one of the time slots. A second subset of the plurality of transmitters that are apt to send the transmissions non-simultaneously is determined. Each of the transmitters in the second subset is assigned to a same one of the time slots. The transmitters are used to transmit the transmissions to the receiver in accordance with the assigning steps.03-03-2011
20110216755Systems and Methods for Managing Timing Functions in Multiple Timing Protocols - One embodiment of the invention includes a master timer controller for a controlling a controller configured to implement a plurality of functions at each of a respective plurality of scheduled times, each of the plurality of scheduled times is converted to a respective plurality of time values associated with a master timing protocol The master timer controller has a plurality of comparators configured to compare the accumulated time value with each of the respective plurality of time values, each of the plurality of comparators being further configured to generate a respective one of the plurality of control signals upon the accumulated value of the master timer being equal to the respective one of the plurality of time values. Another embodiment also includes a method for managing timing functions associating with at least one timing protocol.09-08-2011
20120147878WIRELESS COMMUNICATION DEVICE - A wireless communication device includes a transmission data generator which segments transmission data into a plurality of subslots and then generates a plurality of slots each including a predetermined number of subslots from among the plurality of subslots, and a transmitter which transmits the plurality of slots generated by the transmission data generator. The time length T06-14-2012
20080298337Time Slicing and Statistical Multiplexing in a Digital Wireless Network - In accordance with an aspect of the invention, flexible burst boundaries, within an allowable range, allow statistical multiplexing to be performed in conjunction with time slicing in a digital broadcast network. The signalling of the delta-t is performed such that data of the service is not missed. Similar to deterministic multiplexing, aspects of the invention split the multiplex into several time-cycles and allocate, for each service, a time slot (data burst) from the total time-cycle according to the service's average bit rate. In accordance with aspects of the invention, however, the boundaries of each data burst are allowed to grow or shrink by a limited amount.12-04-2008
20100303054APPARATUS AND METHOD FOR ADAPTIVE TSP SETTING TO MINIMIZE DUPLICATE PACKET TRANSMISSIONS - An apparatus and method for adaptively setting a Timer_Status_Prohibit (TSP) parameter, the method comprising receiving a category information from a first terminal; determining a threshold value based on the category information and transmitting the threshold value to the first terminal; starting a TSP timer and transmitting at least one data packet to the first terminal once the TSP timer has started; determining when the TSP timer exceeds the threshold value to discontinue transmitting the at least one data packet to the first terminal; receiving a status report from the first terminal; and using the status report, determining whether there is any missing or erroneously received data packet and retransmitting any missing or erroneously received data packet from the at least one data packet to the first terminal.12-02-2010
20090073953Reconfiguration of fractional dedicated channel slot format - During a radio link setup or reconfiguration or addition procedures, a serving radio network controller SRNC sends a request or prepare message to a drift radio network controller DRNC with a slot format information element IE, to which the DRNC sends a reply. During a physical channel reconfiguration process the DRNC sends a request to the SRNC with the slot format IE. In all cases, the DRNC uses the IE to determine the slot format for its fractional dedicated physical channel, and reconfigures it with the node B according to the IE.03-19-2009
20100027524Radio layer emulation of real time protocol sequence number and timestamp - A method for mapping CS voice data in a packet data channel is described. A CS plane voice data unit which includes a data unit header that has information indicative of a timestamp is generated. The data unit is transmitted over a packet data channel that introduces radio jitter (e.g., a packet switched data channel). The CS plane voice data unit is received and mapping of the data unit is provided based upon the timestamp information. The header may include information indicative of a SN. The timestamp information may be a part of an adaptation layer counter field and the SN may be a part of a packet data control protocol sequencing number field. Alternatively, the timestamp information a may be a part of a first protocol layer SN field and the SN may be a part of a second protocol layer SN field. Apparatus and computer programs are also described.02-04-2010
20090080403WIRELESS LAN DATA RATE ADAPTATION - A WLAN communication system and algorithm that adaptively changes the data transmission rate of a communication channel based on changing channel conditions. The WLAN communication system or algorithm has two modes being a searching mode and a transmission mode. Furthermore, the WLAN communication system or algorithm incorporates an additive increase, multiplicative decrease (AIMD) function into the rate adaptation algorithm.03-26-2009
20110305236COMMUNICATION APPARATUS, COMMUNICATION METHOD, COMPUTER PROGRAM, AND COMMUNICATION SYSTEM - While directional communication using millimeter waves is realized, the number of communication stations through which simultaneous communication is possible is increased to increase the throughput of the entire system.12-15-2011
20120099581DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN DIGITAL BROADCASTING SYSTEM - A digital broadcasting system and a data processing method are disclosed. The data processing method includes receiving a broadcast signal in which main service data and mobile service data are multiplexed, demodulating the broadcast signal to acquire fast-information-channel signaling information including reference time information for a system clock, and outputting demodulation time information of a specific position of a frame of the broadcast signal, decoding the fast-information-channel signaling information, and establishing the reference time information as the system clock at a demodulation time according to on the outputted demodulation time information and decoding the mobile service data according to the system clock.04-26-2012
20090296682WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL, MANAGEMENT APPARATUS, AND SESSION CONTROL METHOD - A first base station apparatus time division multiplexes an upstream channel and a downstream channel at a first ratio into a first frequency, and uses the upstream channel and the downstream channel in a predetermined coverage to relay a communication of a wireless terminal. In a coverage overlapping the coverage of the first base station apparatus, a second base station apparatus time division multiplexes an upstream channel and a downstream channel at a second ratio which is different from the first ratio, into a second frequency which is different from the first frequency, and uses the upstream channel and the downstream channel to relay a communication of the wireless terminal.12-03-2009
20120039329SYSTEM AND METHOD FOR USING PARTIALLY RECEIVED PACKETS IN COEXISTING NETWORKS - A system and method for using partially received packets in coexisting networks. In one embodiment, a wireless receiver includes an interference detector and a packet validator. The interference detector is configured to determine that time multiplexing of a coexisting wireless network interferes with reception of a packet by the wireless receiver. The packet validator is configured to identify a type of the packet and useable data values of the packet when a partial packet is received due to the time multiplexing. The packet validator is configured to identify the type and useable data values of the packet based on a packet signature stored in the wireless receiver.02-16-2012
20100303053AGGREGATED SESSION MANAGEMENT METHOD AND SYSTEM - A system and method for managing a session is provided wherein a sending computer, after a period of time in which a number of enumerated packets have been sent to a receiving computer, sends a report request to the receiving computer, which then sends to the sending computer a report containing an acknowledgement of the last packet received from said the sending computer, a list of any enumerated packets not received within the time period, and a rate of receipt of packets from the sending computer. If the sender receives a predetermined number of reports identifying the same packet as the last packet received, the session is terminated.12-02-2010
20110090895METHOD FOR TRANSMITTING SYSTEM INFORMATION - The present invention provides a method for transmitting system information, wherein the SIs are transmitted in their respective windows, and the windows do not overlap with each other, when the windows is equal to 1 millisecond, system information blocks are mapped into SIs and the number of the SIs is smaller than or equal to 5. Through this method, the initial wireless sub-frame of the transmitting window of the system information is configured to have offsets, so that the transmitting conflict between SI and SIB1 can be avoided.04-21-2011
20110090894MIDAMBLE 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.04-21-2011
20110158221Support of Plural Chip Rates in CDMA System - In a CDMA system (06-30-2011
20120170567Transmission Method - A transmission method in a wireless data bus network, wherein the method comprises data transmission cycles made of a plurality of time slots of matching length. Each time slot is thereby associated with a particular client on the data bus network exclusively for transmitting data. In accordance with the invention, an allocation duration is started for each time slot, wherein the time slot is utilizable exclusively by the associated client for transmitting data until the duration expires. Alternatively, the time slot that has become available after the allocation duration has expired can be exclusively associated with a different client on the data bus network in accordance with an allocation method for transmitting data.07-05-2012
20120044927RADIO CHANNEL AGGREGATION AND SEGMENTATION - Multiple streams from multiple circuit paths are Block-TDM (Block-Time-Division-Multiplexing) aggregated into a single stream that passes via a single path through processing circuitry capable of handling the aggregated signal. The cost of providing redundant processing circuitry is avoided. After processing in the single path, the resulting signal is Block-TDM de-aggregated to generate multiple streams. Each output stream is substantially the same as if its corresponding input stream had been processed in a separate path using separate processing circuitry. The path-sharing technique is usable to pass multiple streams from multiple radio receivers through one superior Delta-Sigma ADC (DSADC) as opposed to using multiple flat ADCs to process information from the multiple receivers. In one example, the DSADC can be used because the aggregation is Block-TDM-based and the de-aggregator involves a digital low pass filter. In another example, the de-aggregator involves a decoder and the aggregator involves a precoder.02-23-2012
20120002662METHOD AND APPARATUS FOR COEXISTENCE OF MULTIPLE OPERATING ENTITY SYSTEMS - The present invention discloses a method and an apparatus for coexistence of multiple operating entity systems, where the method includes: setting part or all of bandwidths of an operating entity in uplink timeslots of a downlink carrier frequency interference region to be in an idle state. By using the present invention, the uplink timeslots of the operating entity in the downlink carrier frequency interference region are set to be in an idle state and do not transmit an uplink transmit signal any longer, which prevents a downlink transmit signal of another operating entity from interfering with an uplink transmit signal of the operating entity.01-05-2012
20120002660METHOD FOR TRANSMITTING A SIGNAL AND COMMUNICATIONS APPARATUS - A method for transmitting a signal and a communications apparatus are provided. The method includes: obtaining a signal transmission mode, where the signal transmission mode indicates that an uplink signal is transmitted in a multiplexing mode; and transmitting the uplink signal on an uplink band and a downlink band in the multiplexing mode according to the obtained signal transmission mode. The communications apparatus includes: a first obtaining unit, configured to obtain a signal transmission mode, where the signal transmission mode indicates that an uplink signals is transmitted in a multiplexing mode; and a transmitting unit, configured to transmit the uplink signal on an uplink band and a downlink band in the multiplexing mode according to the obtained signal transmission mode. The technical solutions of embodiments of the present invention can reduce signaling overheads of the system and improve spectrum efficiency of the system when obtaining channel state information (CSI).01-05-2012
20090003303TECHNIQUES FOR COEXISTENCE-AWARE RESOURCE ALLOCATION IN WIRELESS NETWORKS - An embodiment of the present invention provides a method, comprising using MAC coordination between a plurality of co-located radios to resolve co-located multi-radio co-existence at the MAC layer.01-01-2009
20090257423System and Method for Channel Status Information Feedback in a Wireless Communications System - A system and method for channel status information feedback in a wireless communications system is provided. A method includes receiving a transmission containing feedback information from a mobile station (MS) having N total antennas, M receive/transmit antennas, N−M receive-only antennas, wherein N and M are integers and N>M, decoding the received transmission, computing estimates of CSI for channel elements of N−M receive-only antennas using the decoded transmission, computing estimates of CSI for channel elements of M receive/transmit antennas using channel reciprocity, and computing a precoding matrix from the channel elements for the N−M receive-only antennas and the M receive/transmit antennas.10-15-2009
20120014367Methods and devices for transmitting and receiving data signals in a wireless network over a plurality of transmission paths - A method includes emitting a reference signal following K transmission paths during a first configuration time slot, identifying valid transmission paths among the set of K transmission paths by listening, according to each transmission path of the set, for a feedback reference signal from the second device during the second configuration time slot; and emitting data signals in each communication time slot of which the associated transmission path has been identified as valid.01-19-2012
20090175257METHOD AND DEVICE FOR DYNAMICALLY CHANGING PREAMBLE DURATION - A method and device dynamically changes preamble duration of a message. A message is transmitted over a forward channel to a target device, wherein the message includes a preamble of a predetermined time duration. A reverse channel is monitored for a confirmation message from the target device. The transmission of the preamble is stopped before expiration of the predetermined time duration upon receiving the confirmation message over the reverse channel.07-09-2009
20100027523Data communication interface and communication devices incorporating same - A communication interface facilitates connection of a plurality of wireless USB compatible hosts with at least a WUSB device in a wireless USB environment at the same time. The communication interface includes a host detector that detects the presence of an active host or a plurality of active hosts, a host communicator for establishing wireless USB connection with a plurality of hosts, and a controller for causing time division multiplexed (TDM) data communication between active hosts and at least one device.02-04-2010
20120155452WIRELESS TRANSMITTING AND RECEIVING DEVICE AND METHOD - A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.06-21-2012
20120063444DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN THE DIGITAL BROADCASTING SYSTEM - A broadcast transmitter and a method of processing broadcast data in the broadcast transmitter are disclosed. The method includes the steps of performing RS encoding and CRC encoding on mobile service data to build RS frames belonging to an ensemble, wherein each of the RS frames are mapped into data groups, wherein each of the data groups comprises known data sequences and a portion of FIC data including information for rapid mobile service acquisition, wherein the information for rapid mobile service acquisition includes transport stream identification information for identifying a mobile broadcast carrying a mobile service that includes the mobile service data and C/N indication information for indicating whether the FIC data are applicable to a current transmission frame or a next transmission frame, multiplexing data in the data groups and main service data, and transmitting a transmission frame including the multiplexed data.03-15-2012
20100202434COMMUNICATIONS METHODS AND APPARATUS FOR SUPPORTING COMMUNICATIONS WITH PEERS USING MULTIPLE ANTENNA PATTERNS - Methods and apparatus for communicating information, e.g., peer discovery information, to peer communications devices using multiple antenna patterns at different times are described. One exemplary method includes transmitting first peer discovery information during a first period of time using a first antenna pattern, and transmitting second peer discovery information during a second period of time using a second antenna pattern which is different from the first antenna pattern. In at least some embodiments the first antenna pattern is a beam antenna pattern and the second antenna pattern is an omni-directional antenna pattern. In some embodiments, an omni-directional antenna pattern is used at least 50% of the time. This allows devices near the transmitting device to quickly obtain peer discovery information while devices further away make take longer to obtain the peer discovery information since they may need for a beam pattern facing their direction to be used.08-12-2010
20100091757METHODS AND SYSTEMS FOR EFFICIENT TLV MANAGEMENT - Certain embodiments provide a method for managing updates to type-length-value (TLV) parameters used in a mobile station. The method generally includes generating a TLV bitmap having a plurality of bits to indicate whether or not updates exist to a corresponding plurality of TLV parameters, generating one or more client module registration bitmaps to indicate a subset of the TLV parameters utilized by a corresponding one or more client modules running on the mobile station, updating the TLV bitmap to indicate one or more TLV parameters modified by one or more MAC management messages, identifying one or more client modules that utilize the one or more TLV parameters modified by the one or more MAC management messages, as indicated by the client module registration bitmaps, and notifying the identified client modules of the modified TLV parameters.04-15-2010
20100091756METHOD OF USING ACKNOWLEDGMENT TONES FOR DATA CONSISTENCY IN INTRA-VEHICULAR WIRELESS NETWORKS - A method for providing electronic communications between wireless nodes includes wirelessly transmitting data from a transmitting one of the nodes to a plurality of receiving ones of the nodes. A respective first acknowledgment tone is wirelessly transmitted from each of the receiving nodes to the transmitting node and to each other one of the receiving nodes. Each first acknowledgment tone is transmitted in response to the respective receiving node receiving the transmitted data. Each of the first acknowledgment tones is transmitted in a respective, unique time slot. At least one second acknowledgment tone is wirelessly transmitted from at least one of the nodes to each other one of the nodes. The second acknowledgment tone is transmitted dependent upon whether a group of received first acknowledgment tones matches a group of expected-to-be-received first acknowledgment tones.04-15-2010
20100246561METHOD AND APPARATUS FOR POWER CONTROL OF SOUNDING REFERENCE SIGNAL (SRS) TRANSMISSION - Methods and apparatus for sounding reference signal (SRS) power control for a wireless transmitter/receiver unit (WTRU) are disclosed. These methods and apparatus include methods and apparatus for carrier-specific and carrier-common SRS power control in WTRUs that utilize carrier aggregation techniques. These methods and apparatus also include methods and apparatus for SRS power control in WTRUs utilizing both carrier aggregation and time division multiplexing (TDM) techniques. Additionally, these methods and apparatus include methods and apparatus for SRS power control for WTRUs utilizing multiple input multiple output MIMO operation. Methods and apparatus for SRS overhead reduction and power management in a WTRU are also disclosed.09-30-2010
20100246560METHOD OF COMMUNICATING WITH USER COOPERATION AND TERMINAL DEVICE OF ENABLING THE METHOD - Proposed is a user cooperative terminal device. The user cooperative device includes: a signal detector to receive a signal transmitted from a source node and detect a received signal; and a message generator to cancel interference caused by a neighboring user in the received signal, using a neighboring user message, and to generate a user message. The neighboring user may decode a received signal of the neighboring user to transfer the neighboring user message.09-30-2010
20100246559RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION MOBILE STATION APPARATUS - A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section (09-30-2010
20100246562Radio 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.09-30-2010
20120163365METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DIFFERENT SIGNAL TYPES IN COMMUNICATION SYSTEMS - A method and apparatus for multiplexing a reference signal from a User Equipment (UE), not having any other signal transmission in the respective Transmission Time Interval (TTI), with a reference signal from another UE also having data transmission in the respective TTI, or with the control signal and reference signal from another UE transmitted in the respective TTI. The multiplexed reference signal from the UE not having any other signal transmission in the respective TTI can serve as a sounding reference signal to enable the serving base station to apply link adaptation to a subsequent signal transmitted by the UE or it can serve as a reference signal conveying state information, such as resource request or service request.06-28-2012
20120213217TIMESLOT SCHEDULING IN DIGITAL AUDIO AND HYBRID AUDIO RADIO SYSTEMS - Systems and methods of decoding data streams and conserving power are described. In some embodiments, a stream of data containing audio and other data is divided into a plurality of timeslots. A first timeslot of the plurality of timeslots is allocated to a first service. A grant allocation message which indicates a location of the first timeslot allocated to the first service is generated. The grant allocation message and the plurality of timeslots are transmitted to a receiver. The transmission system and receiver may be compatible with NRSC-5. The receiver may receive and decode the grant allocation message to identify OFDM symbols that carry information regarding the first service. The receiver may also receive the plurality of timeslots. The receiver may set a power mode of a component during OFDM symbols that indicate a status of the first service.08-23-2012
20100278169BI DIRECTIONAL DECODE AND FORWARD RELAY - Methods, apparatus and computer program product provide a bi-directional decode and forward relay having at least 2N antennas configured to perform transmit and receive operations in a wireless communications network; radio apparatus configured to perform relay operations through the at least 2N antennas with at least two other communications devices operative in the wireless communications network, each of the at least two other communications devices having N antennas; and a controller configured to operate the radio apparatus to receive data from the at least two communications devices at a time slot K; to jointly encode the data received from the at least two communications devices using at least one of an XOR or a sum operation; and at a time slot (K+1) to operate the radio apparatus to transmit via one antenna the jointly encoded data to the at least two communications devices.11-04-2010
20120076127SIGNALLING FOR DIGITAL BROADCASTING SYSTEM - A method and apparatus for transmitting a plurality of data streams in a wireless broadcast system are provided. The method includes mapping the plurality of data streams onto a super-frame that includes a plurality of frames; inserting signalling information in a first signalling information field for assisting in the reception of a first number of said plurality of data streams for a given frame, the first number being less than or equal to a limit applicable to each of the plurality of frames; dependent on a number of data streams for the given frame being greater than the limit, inserting signalling information in a second signalling information field; inserting said first and second signalling information fields in a preamble section of said given frame; and transmitting the plurality of frames.03-29-2012
20120177026DISTINCT TRANSPORT PATH FOR MIMO TRANSMISSIONS IN DISTRIBUTED ANTENNA SYSTEMS - A hybrid expansion unit includes at least one digital communication interface adapted to communicate first and second sets of N-bit words of digitized spectrum with an upstream device. The hybrid expansion unit further includes at least one analog communication interface adapted to communicate first and second sets of bands of analog spectrum with a downstream device. The hybrid expansion unit is adapted to convert between the first set of N-bit words of digitized spectrum and the first set of bands of analog spectrum. The hybrid expansion unit is further adapted to convert between the second set of N-bit words of digitized spectrum and the second set of bands of analog spectrum. The first set of bands of analog spectrum occupy a first frequency range and the second set of bands of analog spectrum occupy a second frequency range. The first frequency range and the second frequency range do not overlap.07-12-2012
20100272092APPARATUS AND METHOD FOR BROADCASTING DATA, AND APPARATUS AND METHOD FOR BROADCASTING RESPONSE DATA, OF SENSOR NODE IN WIRELESS SENSOR NETWORK SYSTEM - Provided are an apparatus and method for broadcasting data, and an apparatus and method for broadcasting response data, of a sensor node in a beacon mode in a wireless sensor network system including a plurality of nodes. According to the apparatus and method for broadcasting data, an admission application message requesting an admission of a sensor node is transmitted to the wireless sensor network system, in which time-division time slots are assigned to each of the nodes of the wireless sensor network system, wherein, in the time-division time slot, the reception function of the node is activated and sensing data is transmitted; a beacon frame is received, which includes information that indicates a broadcasting time slot among the time-division time slots, wherein, in the broadcasting time slot, the reception function of each of the nodes of the wireless sensor network system having received the admission application message, is activated at the same time; and broadcasting data is transmitted during the broadcasting time slot. Accordingly, broadcasting data can be efficiently transmitted in a beacon mode of the wireless sensor network system.10-28-2010
20100272091Uplink Scheduling Supoort in Multi-Carrier Wireless Communication Systems - A method in a wireless communication terminal that supports aggregated carrier access including determining uplink power headroom information for a first set of carriers assigned to the terminal, determining uplink buffer status indicating an amount of data in a terminal buffer available for E-DCH transmission, and transmitting a first composite report including the UPH information for the first set of carriers and the uplink buffer status information.10-28-2010
20120263164METHODS AND APPARATUS FOR ADJUSTING FORWARD LINK SIGNAL TO INTERFERENCE AND NOISE RATIO ESTIMATES - Methods and systems for adjusting a forward link (FL) signal to interference and noise ratio (SINR) are provided. In an example, a FL SINR is estimated for each user in a plurality of users, on at least one of each user's respective data rate control (DRC) message or each user's respective prior FL SINR value. The respective estimated FL SINR for a user in the plurality of users is increased, if, based on a reverse link acknowledge message, the user has decoded a packet before all symbols in the packet have been transmitted. Remaining control channel power is determined. The estimated FL SINR for all users in the plurality of users is increased if remaining control channel power is less than a low threshold. The estimated FL SINR for all users in the plurality of users is increased if the remaining control channel power is greater than a high threshold.10-18-2012
20090016316SUBSCRIBER STATION, TIME DIVISION MULTIPLEXING SYSTEM AND TRANSMISSION TIMING CONTROL METHOD SUITABLE FOR WIRELESS COMMUNICATION IN SYNCHRONOUS PtoMP SCHEME - A transmitter transmits a ranging request message to a BS. A receiver receives response information in response to the ranging request message transmitted by the transmitter. A controller transmits the ranging request message from the transmitter at a transmission timing which has been previously set. Subsequently, if the receiver has not received the response information in response to the ranging request message within a predetermined period, the controller retransmits the ranging request message earlier than the transmission timing which has been previously set.01-15-2009
20090016315APPARATUS AND METHOD OF GENERATING AND MAINTAINING NON-ORTHOGONAL CONNECTION IDENTIFICATIONS (CIDs) FOR WIRELESS PEER-TO-PEER NETWORKS - Apparatus and method are provided for generating transmission connection identifiers (CIDs) in a non-orthogonal or pseudo-random manner identifying peer-to-peer connections in a wireless communication network. When a transmitter terminal intends to transmit to its peer receiver terminal, it just picks a transmission CID in a pseudo-random manner, without trying to avoid a similar transmission CID in a neighborhood. The method of generating this pseudo-random transmission CID may be agreed to between the transmitter and its intended receiver beforehand, for example, during the paging cycle. Also, the mapping between the transmission CID and a set of tone/symbols may not necessarily be orthogonal. In one embodiment, the transmission CID may also change over time in a pseudo-random fashion which is different between different transmitter/receiver pairs. With this property, two transmitter/receiver (Tx/Rx) pairs are not likely to use the same transmission CID for consecutive time intervals.01-15-2009
20090016314Method for transmitting and receiving data using beacon scheduling in wireless sensor network - A method for generating a superframe structure by using a beacon scheduling within a wireless sensor network and transmitting data based on the generated superframe structure includes: defining, by each of a plurality of data transceivers in the network, a relation with data transceivers located in their vicinity; assigning a data transceiver for beacon transmission/reception to each slot of a superframe in consideration of the defined relation; generating a superframe structure including a Beacon Only Period (BOP) and a data frame transmission period, in consideration of assigned slots; and broadcasting beacons and data frames in consideration of the superframe structure.01-15-2009
20090016313METHOD AND APPARATUS FOR SWITCHING A COMMUNICATION CHANNEL - Method and apparatus for switching a communication channel is described. In some embodiments, a station may suspend communicating directly with another station on a first communication channel without passing communication packets through an access point, in response to a decision of communicating directly with the another station on a second communication channel. Then, the station may switch from the first communication channel to the second communication channel and resume communicating directly with the another station on the second communication channel. When communicating on the second communication channel, the station may pretend to be in an inactive mode in respect to the access point.01-15-2009
20120230321MOBILE USER TERMINAL, MOBILE COMMUNICATION SYSTEM, BASE STATION, AND COMMUNICATION METHOD - A mobile user terminal includes a receiver which receives a signal, and a processor which measures downlink channel quality based on the signal and does not transmit downlink channel quality information and an uplink pilot signal simultaneously at a period which the mobile user terminal is a state of transmission off in an intermittent fashion.09-13-2012
20080298338METHOD FOR EFFICIENT TRANSMISSION AND RECEPTION OF AUDIO DIGITAL SIGNALS - The present invention relates to a method of wirelessly transmitting and receiving audio digital signals of the type having a first plurality of blocks with each block having a second plurality of frames, with each frame having a third plurality of subframes, with each subframe having a preamble and a binary data. The method efficiently transmits and recomposes the digital audio signals by searching for the preamble associated with a subframe, which is the first subframe of a frame, with the frame being the first frame of a block, and then transmitting wirelessly only the binary data of each subframe, in each frame, in each block thereafter. In a preferred embodiment, the protocol for the transmission of data calls for each data packet that is transmitted to consist of 512 bytes. The data packet transmitted by the transmitter must be acknowledged by the transmission of an acknowledgement (ACK) packet from the receiver. In the event, the data packet is not received and/or the ACK packet is not received, and transmission must recommence, synchronization is accomplished by the retransmission of data packet immediately after the preamble of the first subframe of the first frame of a block.12-04-2008
20110032924Apparatuses, Systems, and Methods for Managing Operation Status of Wireless Transmissions and Receptions - A mobile communication device for managing the operation status of wireless transmissions and receptions is provided. In the mobile communication device, a wireless module performs the wireless transmissions and receptions. Also, in the mobile communication device, a controller module activates the wireless module to transmit a scheduling request message to the service network, and keeps the wireless module activated for the wireless receptions in a first predetermined period of time subsequent to the transmission of the scheduling request message.02-10-2011
20120327925Method and System for Efficiently Scheduling Short Range Wireless Data Transmissions - According to one disclosed embodiment, a method for efficiently scheduling short-range wireless data transmissions is described. This method may include providing beacon intervals for timed data transmission, receiving a plurality of requests for data, delaying allocation of any of the plurality of requests for data into one of the beacon intervals until a number of admitted requests for data exceeds a threshold. The method may also include allocating timeslots for pseudo-static service periods before allocating timeslots for non-pseudo static service periods and allocating timeslots for non-pseudo static service periods in descending order of relative time urgency.12-27-2012
20120140761TIME DIVISION MULTIPLEXED ACCESS METHOD OF OPERATING A NEAR FIELD COMMUNICATION SYSTEM AND A NEAR FIELD COMMUNICATION SYSTEM OPERATING THE SAME - A TDMA method of operating a near-field communication system, in which the same synchronous slot is allocated to more than one, non-interfering, transmitters, is disclosed. The power level may be adjusted to minimise interference from unwanted transmitted signals at respective receivers. A near-field communication system operating such a method is also disclosed.06-07-2012
20130016712RADIO COMMUNICATION SYSTEM AND RECEIVING APPARATUSAANM Tomeba; HiromichiAACI Osaka-shiAACO JPAAGP Tomeba; Hiromichi Osaka-shi JPAANM Nakamura; OsamuAACI Osaka-shiAACO JPAAGP Nakamura; Osamu Osaka-shi JPAANM Toh; ShinpeiAACI Osaka-shiAACO JPAAGP Toh; Shinpei Osaka-shi JP - A radio communication system includes a multiple number of transmitting apparatus and a receiving apparatus including a multiple number of receive antennas, in which the transmitting apparatus generates a reference signal that is obtained by adding a different time shift to a known signal between the transmitting apparatus and the receiving apparatus, multiplexes a data signal with the reference signal and transmits the resultant signal. The receiving apparatus separates reference signals multiplexed on the signals received from the multiple transmitting apparatus, and estimates channel information from the reference signals, which have been transmitted through common frequencies in part or whole of the signal spectra. Then, the data signal is decoded based on the estimated channel information.01-17-2013
20100172338APPARATUS AND METHOD FOR ENABLING COMMUNICATIONS AMONG UNSYNCHRONIZED WIRELESS DEVICES - A method enables a wireless device (07-08-2010
20130022035Distributed Medium Access Control For Wireless Data Networks - In one embodiment, conflicts are identified by sending and announcement message from the first node to neighboring nodes from among the plurality of second nodes indicating that the first node intends to participate in a first communication with a first terminal during the current frame, and receiving a report message from any conflicting nodes at the first node, each conflicting node being a node from among the neighboring nodes which intends to participate in a different communication. Conflicts are resolved by selecting one of (1) maintaining a state of the first node as a clear state and (2) changing the state of the first node to a blocked state based on the received report messages. The first communication is scheduled for the current time frame, if the state of the first node is the clear state after the resolving conflicts step.01-24-2013
20130136118TIME DIVISION RECEIVER AND TIME DIVISION RECEIVING METHOD - Provided are a time division receiver and a time division receiving method capable of mitigating leaks between branches for a time division multiplexed signal for which a plurality of branches have been time-division multiplexed even when processing using a single high-frequency circuit. In a time division receiver (05-30-2013
20080253351MULTIRADIO POWER AWARE TRAFFIC MANAGEMENT - A system for managing the operation of a plurality of radio modules integrated within the same wireless communication device. In at least one embodiment of the present invention, time may be allocated for use in communicating over one or more wireless communication mediums. This time may be allocated based on a determination that a maximum power usage threshold will not be exceeded, and that potential communication conflicts may be avoided, over a period of time. The allocation may result in an operational schedule that may be utilized by radio modules in the wireless communication device that support the one or more wireless communication mediums.10-16-2008
20080253350Method and Device Using Randomized Hough Transform for Detecting Radio Systems with Periodic Emission Pattern - The invention includes a method and device for identifying opportunities to transmit in a radio network. The method and device listen for a first, second, and third period of time to detect first, second, and third busy slots. A processor recognizes a sequence of the first, second, and third busy slots as a function of time, performs a Randomized Hough Transform on the sequence, generates a histogram based on the Randomized Hough Transform, identifies peaks in the histogram, determines whether the peaks correspond to a known radar, and identifies an opportunity to transmit.10-16-2008
20080253349Method of and an Apparatus for Effecting a Smooth Transition Between Adjacent Symbol Bursts Transmitted in Different Modulation Formats - A smooth transition is effected between adjacent digital information bursts transmitted in different modulation formats by selecting a first sequence for a first digital symbol burst to be transmitted, which first sequence comprises a set of end symbols with a first particular symbol pattern. A second sequence for a second digital symbol burst is also selected for transmission after the first digital symbol burst, which second sequence comprises a set of start symbols with a second particular symbol pattern. The first digital symbol burst is modulated in a first modulation format and the second digital symbol burst is modulated in a second modulation format different than the first modulation format. Thereafter, the modulated first and second digital symbol bursts are transmitted. The transmission of the second digital symbol burst starts upon completion of the transmission of the first digital information symbol at an instant so selected that transmission of the end set of bits of the first code sequence is synchronized in time with the start set of bits of the second code sequence.10-16-2008
20080253348Transmitter Device, Bridge Device, and Receiver Device, and Network System Including the Devices - A network system includes a transmitting apparatus; a transmission path; a relaying apparatus that receives real time information transmitted through the transmission path; a wireless network; and a receiving apparatus that receives data transmitted through the wireless network. The relaying apparatus has a reference time generating part that generates a reference time independently of the transmitting apparatus; and a network transmitting part that transmits both the real time information received from the transmitting apparatus and the reference time via the wireless network. The receiving apparatus has a network receiving part that receives the real time information and reference time transmitted through the wireless network; an internal time management part that generates an internal time from the reference time received by the wireless network receiving part; and a real time information processing part that decodes the real time information received by the wireless network receiving part to reproduce the content data and that then outputs the content data, based on the internal time generated by the internal time management part. This network system allows the receiving apparatus to synchronize and output video and audio, regardless of singularity or plurality of the receiving apparatus.10-16-2008
20080247376Beaconing Protocol for Ad-Hoc Networks - A distributed MAC protocol is provided that includes a superframe (10-09-2008
20080240068Wireless Network System, And Wireless Device Included In The System - A wireless network system having an access point, and wireless devices capable of wireless communication with the access point, each wireless device being capable of wireless communication with the other wireless device in an ad hoc mode without via the access point, wherein the access point includes a registrar setup portion to set up any of the wireless devices as a registrar which permits wireless communication between each wireless device and the access point, and each wireless device includes: a memory portion for storing identifiers of the wireless devices; a data-supply requesting portion operable in the ad hoc mode to transmit to the other wireless device a data-supply request packet requesting the other wireless device to transmit the identifier of the other wireless device stored in its memory portion; a request replying portion operated in response to the data-supply request packet to transmit to the other wireless device a data-supply-request reply packet including an own identifier; a reply-data receiving portion operable to receive the data-supply-request reply packet; an identifier retrieving portion operable to retrieve the identifier from the received data-supply-request reply packet, and store the retrieved identifier in its memory portion; and a registrar registering portion operable after the wireless device is set up as the registrar by the registrar setup portion (10-02-2008
20120250671INFORMATION COMMUNICATION APPARATUS AND PROGRAM STORAGE MEDIUM - An information communication apparatus may include a request buffer, a request sorting device, a sending device, a frame generating device, and a frame transmitting device. A request buffer may store transmission requests corresponding to frames. A request sorting device may sort the transmission requests. A sending device may send the sorted transmission requests in accordance with a transmission timing that is determined based on destinations of the frames and in which a receiving node can receive the frames. A frame generating device may generate frames based on the received transmission requests. A frame transmitting device configured to transmit the generated frames.10-04-2012
20130094491COMMUNICATIONS APPARATUSES AND METHOD FOR MULTI-LEVEL TRANSMISSION POWER CONTROL THEREOF - A communications apparatus is provided. A radio module transmits first packets before establishing a connection with a peer communications device. A transmission power utilized for transmitting the first packets is adjustable, so that multiple levels of transmission power are utilized for transmitting the first packets.04-18-2013
20130114588METHOD AND APPARATUS FOR A MULTI-ANTENNA DEVICE THAT USES A SINGLE BASEBAND FILTER AND ANALOG-TO-DIGITAL CONVERTER - A multi-antenna device (05-09-2013
20130094492WIRELESS COMMUNICATION APPARATUS WITH PHYSICAL LAYER PROCESSING MODULE AND MAC LAYER PROCESSING MODULE AND ITS COMMUNICATION METHOD - A wireless communication apparatus includes a first module, a second module, an inhibit module, a calculation module, and a control module. The first module constitutes a first system. The first system transmits and receives first data to and from a first device. The second module constitutes a second system. The second system transmits and receives second data to and from a second device in each interval time-divided with determined transmission timing. The inhibit module generates inhibit periods for preventing the first module from communicating by use of the first data. The calculation module calculates an occupation time required for the transmission and reception of the first data. The control module compares the period between the inhibit periods adjacent to one another with the occupation time and, according to the comparison result, instructs the first device to stop or delay the transmission of the first data.04-18-2013
20080198833SYSTEM AND METHOD OF REAL-TIME SCHEDULING AND CONTROL FOR MULTI-HOP ZERO-QUEUE DISTRIBUTED SYSTEMS - A method for communication between at least 3 modes is provided. The method comprises the step of scheduling transmissions to minimize the average time between two consecutive transmissions from a node using linear programming.08-21-2008
20130177010TRANSMISSION OF OVERHEAD INFORMATION FOR RECEPTION OF MULTIPLE DATA STREAMS - Techniques for transmitting overhead information to facilitate efficient reception of individual data streams are described. A base station may transmit multiple data streams on multiple data channels (or MLCs). The MLCs may be transmitted at different times and on different frequency subbands. The time-frequency location of each MLC may change over time. The overhead information indicates the time-frequency location of each MLC and may be sent as “composite” and “embedded” overhead information. The composite overhead information indicates the time-frequency locations of all MLCs and is sent periodically in each super-frame. A wireless device receives the composite overhead information, determines the time-frequency location of each MLC of interest, and receives each MLC at the indicated time-frequency location. The embedded overhead information for each MLC indicates the time-frequency location of that MLC in the next super-frame and is transmitted along with the payload of the MLC in the current super-frame.07-11-2013
20110310879OPPORTUNISTIC UPLINK SCHEDULING - Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).12-22-2011
20120002661WIRELESS COMMUNICATION SYSTEM, TRANSMISSION DEVICE, AND RECEIVING DEVICE - A wireless communication system includes a transmission device including plural transmission antennas and a receiving device including plural reception antennas. The transmission device includes a branching unit that branches a signal into plural transmission signals respectively passing plural signal lines each corresponding to each of the transmission antennas and delay units provided on at least one of the signal lines to apply a delay to the transmission signal. When a transmission signal branched by the branching unit is applied with a delay by the delay units, the transmission device sets the transmission signal on which the delay is applied as the transmission signal, and transmits the transmission signals to the receiving device via the transmission antennas. The receiving device includes delay units provided on at least one of plural signal lines that respectively pass plural reception signals received at the reception antennas to apply a delay to the reception signal and a combining unit that sets the reception signal on which the delay is applied as the reception signal, and combines the reception signals.01-05-2012
20120063443DIGITAL BROADCAST TRANSMITTER, DIGITAL BROADCAST RECEIVER, AND METHODS FOR CONFIGURING AND PROCESSING STREAMS THEREOF - A method for processing a stream of a digital broadcast transmitter, the digital broadcast transmitter, a method of processing a stream of a digital broadcast receiver, and the digital broadcast receiver are provided. The method for processing the stream of the digital broadcast transmitter includes: configuring a stream including a slot to which mobile data is allocated; and encoding and interleaving the configured stream and outputting the encoded and interleaved stream, wherein signaling data included in each slot of the stream includes information of an adjacent slot. Accordingly, a digital broadcast receiver efficiently uses even the adjacent slot.03-15-2012
20120093144OPTIMIZED METHOD OF TRANSMITTING LAYERED CONTENTS TO MOBILE TERMINALS AND VIA A RADIO INFRASTRUCTURE WITH ACCESS PROCEDURE OF TDM/TDMA/OFDMA TYPE, AND ASSOCIATED PROCESSING DEVICE - A method is devoted to the transmission, via a wave-based transmission infrastructure (RC) using an access method relying on multiplexing that is at least time division multiplexing, of content from at least one channel, each piece of content being arranged into one base data layer and at least one enhancement data layer, respectively associated with different transmission time slices, and broken down into portions transmitted during the time slices respectively associated with their layers. This method comprises i) the insertion, in a chosen location of each portion of a base data layer to be transmitted, within a chosen network layer, of at least one learning sequence processed according to a configuration scheme identical to that used to process said enhancement data layer, and ii) upon receiving a portion of a base data layer of a piece of content within a terminal (TC), extracting said learning sequence inserted into a chosen network layer, then estimating the reception quality based on that extracted learning sequence, and allowing it to use the next portion of said content's said enhancement data layer whenever the estimated quality is above a chosen threshold.04-19-2012

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