03rd week of 2012 patent applcation highlights part 28 |
Patent application number | Title | Published |
20120014332 | Methods and Systems for Dynamic Spectrum Arbitrage - Methods and system are provided for managing and monitoring allocation of RF spectrum resources based on time, space and frequency. A network may be enabled to allocate excess spectrum resources for use by other network providers on a real-time basis. Allocated resources may be transferred from one provider with excess resources to another in need of additional resources based on contractual terms or on a real-time purchase negotiations and settlements. A network may be enabled to monitor the use of allocated resources on real-time basis and off-load or allow additional users depending on the spectrum resources availability. Public safety networks may be enabled to make spectrum resources available to general public by allocating spectrum resources and monitoring the use of those resources. During an emergency, when traffic increases on a public safety network, the public safety networks may off-load bandwidth traffic to make available necessary resources for public safety users. | 2012-01-19 |
20120014333 | INTER-CELL INTERFERENCE COORDINATION METHOD AND APPARATUS FOR AN OFDM-BASED HETEROGENEOUS CELLULAR SYSTEM - An inter-cell interference coordination method and apparatus is provided for a heterogeneous network system based on Orthogonal Frequency Division Multiplexing (OFMD) communication. The inter-cell interference coordination method and apparatus exchanges two different types of inter-cell interference coordination messages between base stations to adaptively use the frequency division and time division schemes, thereby coordinating inter-cell interference of control channels transmitted randomly in distributed manner. | 2012-01-19 |
20120014334 | METHOD AND APPARATUS FOR MANAGING RESOURCES FOR P2P COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for managing resources for Peer-to-Peer (P2P) communication in a wireless communication system. A mobile station (MS) attempting to establish P2P communication receives a P2P amble signal transmitted on at least one adjacent P2P link, measures a signal strength for the P2P amble signal, reports the measurement results to a base station (BS), and performs the P2P communication using a P2P resource that is assigned by the ES according to the measurement results. The ES assigns a resource different from the resource assigned to a P2P link having a highest signal strength measured, as a resource for the P2P communication, thereby preventing possible interference caused by adjacent P2P links. | 2012-01-19 |
20120014335 | WIRELESS TERMINAL - There is provided a wireless terminal including: a frame allocating unit performing an allocation process on a frame to be transmitted to another wireless terminal; a first communication unit assigning a sequence number to the allocated frame and transmitting the frame to the another wireless terminal through a first channel or a first mode; a second communication unit assigning a sequence number to the allocated frame and transmitting the frame to the another wireless terminal through a second channel or a second mode, wherein the allocating unit allocates the frame to one of the first and second communication units; when changing the transmission source of the frame from the one to the other communication unit, a change notification frame including a transmission starting sequence number is transmitted to the another wireless terminal; and the frame allocating unit switches the allocation destination of the frame from the one to the other. | 2012-01-19 |
20120014336 | CHANNEL ACCESS METHOD FOR VERY HIGH THROUGHPUT (VHT) WIRELESS LOCAL ACCESS NETWORK SYSTEM - A channel access method for a very high throughput (VHT) system using a bonding channel having a plurality of subchannels is provided. The method includes receiving training information comprising a training offset value through a subchannel, performing channel estimation on a full channel bandwidth comprising all subchannels when a time corresponding to the training offset value is elapsed after the training information is received, transmitting a request to send (RTS) frame to a destination station through some subchannels selected from the plurality of subchannels by one or a plurality of source stations according to a result of the channel estimation, and transmitting a clear to send (CTS) frame to one source station selected from the plurality of source stations by the destination station in response to the received RTS frame. Accordingly, an effective channel access mechanism is provided for the VHT system, and collision among stations can be avoided. | 2012-01-19 |
20120014337 | Wireless Communication System, Apparatus for Supporting Data Flow and Method Therefor - An apparatus for use in allocating resource in a wireless communication system, where the apparatus comprises mapping logic arranged to map one or more services to individual radio bearers of a plurality of radio bearers; reporting logic arranged to indicate buffer occupancy for the plurality of radio bearers; and prioritization logic arranged to prioritize the allocated resource across multiple wireless communication units on a radio bearer basis. | 2012-01-19 |
20120014338 | Method and Apparatus for Transmitting Transport Channels Over a Physical Channel of a Cellular Communication System - A cellular communication network node comprises signal processing logic arranged to transmit at least one direct signalling channel indicator bit. The signal processing logic, upon receipt of a message to be transmitted, sets at least one direct signalling channel indicator bit to indicate that a direct signalling channel is active in at least one unit of resource. The signal processing logic re-allocates the at least one unit of resource for use by at least one channel other than the direct signalling channel when no direct signalling channel messages are to be transmitted. | 2012-01-19 |
20120014339 | Low Peak-To-Average Power Ratio Transmission in Frequency-Division Multiple Access Systems - A method for communication includes allocating, in a multiple-access communication system ( | 2012-01-19 |
20120014340 | CQICH ALLOCATION REQUEST HEADER FOR COMMUNICATING FEEDBACK INFORMATION - A method of communicating feedback information between a mobile station and a base station comprises determining a need to request bandwidth allocation; providing information to a base station according to the determining, wherein the information indicates bandwidth allocation for a fast feedback channel; and performing communication with the base station upon bandwidth allocation according to the provided information. | 2012-01-19 |
20120014341 | Uplink Scheduling and Resource Allocation With Fast Indication - Systems and methods for signalling transitions between talk-spurt state and silence state for wireless terminals having semi-persistently allocated uplink resources are employed. A layer 1/2 indication of the state transitions may be transmitted using a resource that is specifically allocated for that purpose. Alternatively, ACK/NACK signalling may be employed. Layer 1 indications may be employed for both state transition types. Alternatively, in-band MAC layer signalling may be used to signal state transition from talk-spurt state to silence, or the network may deduce this state transition on its own. A different uplink wireless transition resource is allocated for the talk-spurt state vs. the silence state. | 2012-01-19 |
20120014342 | UPLINK RESYNCHRONIZATION FOR USE IN COMMUNICATION SYSTEMS - A method and apparatus for reusing an uplink control channel configuration associated with an uplink control channel, the method comprising the steps of, at a user agent, receiving an uplink control channel resource configuration assigned by an access device, transmitting to the access device using the control channel resources associated with the received uplink control channel resource configuration and, after a time alignment timer expires, retaining the uplink control channel resource configuration. | 2012-01-19 |
20120014343 | SYSTEM AND METHOD FOR UPLINK TIMING SYNCHRONIZATION IN CONJUNCTION WITH DISCONTINUOUS RECEPTION - Systems and methods for controlling sounding reference signal transmission are provided; a user equipment starts transmitting the sounding reference signal in anticipation of uplink data transmission, and then discontinues transmitting the sounding reference signal after completion of uplink data transmission. | 2012-01-19 |
20120014344 | Semi-Persistent Scheduling and Discontinuous Reception Alignment - A method is provided for detection of an uplink grant for a user agent (UA). The method comprises detecting a semi-persistent scheduling (SPS) activation/reconfiguration signaling over a physical downlink control channel (PDCCH) only during an SPS activation window, wherein the SPS activation window precedes a discontinuous reception (DRX) on-duration by a predetermined amount of time. Also included is a UA comprising a component configured to detect an SPS activation/reconfiguration signaling over a PDCCH only during an SPS activation window, wherein the SPS activation window precedes a DRX on-duration by a predetermined amount of time. | 2012-01-19 |
20120014345 | Determination of Appropriate Radio Resource to be Requested in Case of a Circuit-Switched (CS) Fallback Procedure - A system and method for implementing fallback on a wireless device for circuit switched fallback from a first network that does not provide a circuit switched domain service is presented. A paging message is received from the first network. The paging message instructs the wireless device to implement circuit switched fallback to a circuit switched network. The paging message is inspected for information indicative of a service associated with the paging message, and a channel type suitable for the service is determined from the information indicative of the service. A request message for initiating the establishment of a radio connection is transmitted. The request message identifies the suitable channel type, and the service is used on the circuit switched network. | 2012-01-19 |
20120014346 | WIRELESS COMMUNICATION APPPARATUS AND WIRELESS COMMUNICATION METHOD - An aspect of the invention provides a wireless communication apparatus that includes a generator configured to generate modulated signals; a mapping unit configured to map the modulated signals on at least one subcarrier in a frequency domain, the subcarrier being in a first subcarrier group corresponding to one of a plurality of subcarrier groups, wherein frequencies of the subcarrier mapped by the mapping unit is predefined by a pattern with slot, each slot including symbols in a time domain, the predefined pattern of the frequencies of each slot depending on a base station; and a transmitter configured to transmit the modulated signals mapped by the mapping unit. | 2012-01-19 |
20120014347 | TRANSMISSION CONTROLLING METHOD, WIRELESS TRANSMITTER, WIRELESS RECEIVER, AND COMMUNICATION SYSTEM - A wireless transmitter that transmits data to a wireless receiver generates a plurality of data blocks based on the data destined for the wireless receiver; encodes and modulates each of the plurality of data blocks in accordance with an encoding scheme and a modulating scheme that are to be applied; and transmits the plurality of data blocks encoded and modulated using a wireless resource. In the generation of the data block, the size of each of the plurality of data blocks is adjusted by dividing the data destined for the wireless receiver such that an amount of data of each of the plurality of data blocks encoded and modulated is equal to or less than an amount of maximum data that the wireless transmitter is able to transmit using the wireless resource when the encoding scheme and the modulating scheme are applied. | 2012-01-19 |
20120014348 | CHANNEL ASSIGNMENT METHOD, RADIO COMMUNICATION SYSTEM AND CHANNEL STRUCTURE IN RADIO SECTION - In a radio communication system, a user terminal transmits a reservation packet to a base station using a common control channel ( | 2012-01-19 |
20120014349 | CHANNEL-SOUNDING METHOD USING A PLURALITY OF ANTENNAS, AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and to an apparatus for transmitting an SRS in a multi-antenna system. The method comprises the steps of: acquiring specific information for discriminating a first antenna group and a second antenna group from among a plurality of antennas, wherein said first antenna group includes one or more antennas which are set to a turned-on state to perform communication with a base station, and said second antenna group includes one or more other antennas which are set to a turned-off state; transmitting an SRS to the base station if a predetermined condition is satisfied, under the condition that the second antenna group is set to the turned-off state; and setting the second antenna group to a turned-off state after the transmission of the SRS. | 2012-01-19 |
20120014350 | APPARATUS AND METHOD OF CONTROLLING SEAMLESS HANDOVER BETWEEN HETEROGENEOUS NETWORKS BASED ON IPV6 OVER IPV4 TUNNELING MECHANISM - The invention relates to a method and an apparatus for controlling seamless handover between heterogeneous networks based on IPv6 over IPv4 tunneling. When IPv6 service is provided using tunneling in an IPv4 based network environment, handover of a mobile terminal between different networks is achieved through switching of an active tunnel and a standby tunnel, and thus handover between different networks is facilitated and data loss is prevented to secure continuity of service provided to the mobile terminal even when the mobile terminal hands over to a heterogeneous network. | 2012-01-19 |
20120014351 | SYSTEM FOR CONTEXT TRANSFER FOR WIRELESS INTERNET DEVICES - A system and method for feature context transfer store all currently “active” feature contexts locally at an Access Router (AR), and store all “inactive” feature contexts centrally in a main database. The main database can be accessed by all the ARs within the same administrative domain. When a new microflow becomes active, its active feature contexts are brought from the main database and loaded into the local directory, thus replacing any inactive feature contexts that are not needed at the time. | 2012-01-19 |
20120014352 | APPARATUS AND METHOD FOR ENFORCEMENT OF MULTIPLE PACKET DATA NETWORK (PDN) CONNECTIONS TO THE SAME ACCESS POINT NAME (APN) - An apparatus and method for enforcement of multiple packet data network (PDN) connections to a same access point name (APN) in a wireless communication system including receiving a message from a mobile device related to a first packet data network (PDN) connection to a first APN; and associating the first PDN connection related to the mobile device with a radio connection between the mobile device and an access point in response to the message. In one example, the apparatus and method further includes determining if the mobile device utilizes at least one additional radio connection with the access point to communicate over at least one additional PDN connection to the first APN. | 2012-01-19 |
20120014353 | WIRELESS COMMUNICATION METHODS AND COMPONENTS THAT IMPLEMENT HANDOFF IN WIRELESS LOCAL AREA NETWORKS - This invention relates to wireless local area networks, and particularly to the IEEE 802.11 family of standards. It consists of a method and apparatus that can be implemented in access points (APs) and subscriber wireless transmit/receive units (WTRUs), in order to allow an AP to initiate re-association of a WTRU to itself or a different AP. The invention improves the robustness of the network by enabling more efficient load balancing, congestion control, and roaming, without compromising the user experience. | 2012-01-19 |
20120014354 | VOICE SERVICE IN EVOLVED PACKET SYSTEM - Methods and apparatus to manage voice service in evolved packet systems are disclosed. An example method in a UE in an Evolved Packet System (EPS) includes receiving a first Non Access Stratum (NAS) protocol response message with network provided Voice over IP Multimedia (IM) Core Network (CN) Subsystem (VoIMS) indicators, wherein the UE has a voice services indicator related to a UE usage setting and responsive to at least one of the voice services indicator related to a UE usage setting or the network provided VoIMS indicators, causing the UE to disable evolved universal mobile telecommunications system terrestrial radio access (E-UTRAN) cell reselection. | 2012-01-19 |
20120014355 | METHOD OF RELIABLE HANDOVER SIGNALING PROCEDURE IN A BROADBAND WIRELESS ACCESS SYSTEM - A method for determining whether a mobile station (MS) is present in coverage of a serving base station (SBS) during a handover process and an apparatus for carrying out the same, resulting in the implementation of more reliable handover, are disclosed. A method for controlling an MS to perform a presence check procedure during handover of a broadband wireless access system includes receiving a first signal for a presence check request from an SBS, and transmitting a second signal as a response to the presence check request to the SBS. Preferably, the first signal is received after the lapse of a first time indicating a deadline at which the MS performs network re-entry to a target base station (TBS). | 2012-01-19 |
20120014356 | Systems, Methods, Apparatuses, and Computer Program Products for Facilitating Voice Call Continuity in Intersystem Handover - Systems, methods, apparatuses, and computer program products are provided for facilitating voice call continuity in intersystem handover. A method may include determining that a user equipment device being handed over from a packet switched network to a circuit switched network is a party to a voice call in an alerting state. The method may further include providing session state information indicating that the user equipment device is a party to a voice call in an alerting state to a network entity on the circuit switched network in response to the determination. Corresponding systems, computer program products and apparatuses are also provided. | 2012-01-19 |
20120014357 | APPARATUS AND METHOD FOR PERFORMING HANDOVER IN MULTIPLE COMPONENT CARRIER SYSTEM - A method for performing handover in a multiple component carrier system includes a UE transmitting a measurement report message, including measurement values for one or more cells, to a source BS, the source BS transmitting a handover request message, including at least one of a candidate cell list including at least one candidate cell to be used in a target BS, an aggregatable cell list including at least one aggregatable cell in which UE capability is taken into consideration, and a list of sensible cells including at least one cell defined based on a similarity sensitivity of a measured frequency, to the target BS based on the measurement value, the source BS checking the cell included in the at least one list, receiving a handover ACK message including a final cell from the target BS, and determining handover, and the source BS transmitting a handover command message to the UE. | 2012-01-19 |
20120014358 | METHOD, SYSTEM AND DEVICE FOR DETERMINING BANDWIDTH OF UPLINK SOUNDING REFERENCE SIGNAL - The present invention discloses a method, system and device for determining a bandwidth of an uplink sounding reference signal SRS. The method for determining the bandwidth of the uplink SRS comprises the following steps: determining whether SRS is transmitted with the uplink pilot time slot if the SRS is transmitted with the largest bandwidth level; transmitting SRS with the non-extensive SRS bandwidth if SRS is determined to be transmitted with the uplink pilot time slot and the UE reaches the power limit. In the present invention, the signal-to-noise ratio detected on the bandwidth with which SRS transmitted can be maintained, and the accurate detection of the channel information is thereby realized. | 2012-01-19 |
20120014359 | Systems and Methods for Allocating and Transmitting Uplink Data Block Transmissions - Systems and methods for allocating and transmitting uplink data block transmissions with piggy-backed ACK/NACK bitmap field are provided. The systems and methods involve using a request for a DBCCI (Data Block Combined with Control Information) to allocate a timeslot for data transmission. A UADB (uplink allocation for data block) is not also used to allocate the timeslot. | 2012-01-19 |
20120014360 | Method And Apparatus For Interference Management In Heterogenous Networks - A method is provided a wireless system for providing small “guard” cells in a heterogeneous network at locations proximate to privately-maintained HeNB (or femto) cells in the heterogeneous network. More particularly, the methodology of the invention addresses the problem of a mobile user in a heterogeneous network located nearby to a privately maintained HeNB cell in the heterogeneous network, and the inherent interference created for the HeNB cell by the necessity of the mobile user having to transmit and receive communications from a distant public macro eNB. By deploying small public “guard” cells in the macro cell proximate to the private HeNB cells, such a public mobile terminal is enabled to communicate with the public small cell at generally lower power than would have been necessary for communication with the distant macro eNB, with a resulting reduction in interference for the nearby HeNB cell. The FL interference between the macro cell and the HeNBs is also mitigated. | 2012-01-19 |
20120014361 | WIRELESS COMMUNICATION SYSTEM AND IDLE STATE OPERATION METHOD THEREOF - A wireless communication system and method for operation of the wireless communication system in idle mode is provided to avoid downlink inter-cell interferences. The idle state operation method of a base station for a wireless communication according to the present invention includes setting a first discontinuous transmission cycle and a first transmission transition period; transmitting downlink signals at the first discontinuous transmission cycle within the first transmission transition period; setting a second discontinuous transmission cycle and a second transmission transition period when the first transmission transition period ends; and transmitting the downlink signal at the second discontinuous transmission cycle within the second transmission transition period. | 2012-01-19 |
20120014362 | WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND METHOD FOR SELECTING WIRELESS COMMUNICATION ROUTE - An effective velocity estimation section | 2012-01-19 |
20120014363 | SIMULTANEOUS WIRELESS SUPPORT IN SOFTWARE DEFINED RADIO - A system and method for providing the ability to discover the capabilities of a user's computer to determine whether it is capable of supporting more than one wireless protocol simultaneously is provided. A computing device's capabilities (including, for example, hardware and/or software capabilities) is checked to determine if it supports at least two specific wireless protocols and checking a computing device's capabilities (including, for example, hardware and/or software capabilities) is checked to determine if it supports both wireless protocols simultaneously. The techniques for determining the computing device's compatibility may include comparing lists of protocol requirements to lists of system capabilities and/or generating test signals by the system according to the protocol. | 2012-01-19 |
20120014364 | WLAN TRANSMITTER HAVING HIGH DATA THROUGHPUT - A wireless local area network (WLAN) transmitter includes a baseband processing module and a plurality of radio frequency (RF) transmitters. The processing module selects one of a plurality of modes of operation based on a mode selection signal. The processing module determines a number of transmit streams based on the mode selection signal. The processing of the data further continues by converting encoded data into streams of symbols in accordance with the number of transmit streams and the mode selection signal. A number of the plurality of RF transmitters are enabled based on the mode selection signal to convert a corresponding one of the streams of symbols into a corresponding RF signal such that a corresponding number of RF signals is produced. | 2012-01-19 |
20120014365 | RADIO COMMUNICATION DEVICE FOR MOBILE COMMUNICATION SYSTEM - A mobile communication network includes a radio communication device which is installed in a mobile communication network to carry out radio communication with a mobile terminal, a gateway which relays a communication from the terminal device from the radio communication device to the Internet, and a node which carries out an authentication process in response to a connection request from the mobile terminal. The gateway is installed in the radio communication device or in a carrier network. The node establishes a direct tunnel between the radio communication device and the gateway, so that the mobile terminal is connected to the Internet via the direct tunnel and via the mobile communication network. Thus, it is possible to reduce traffic simply passing through the carrier network. | 2012-01-19 |
20120014366 | METHOD FOR TRANSMITTING MEDIA ACCESS CONTROL PROTOCOL DATA UNIT - A method for transmitting a relatively large amount of data and an apparatus supporting the same are proposed. The data transmission method includes constructing a MAC PDU including an Advanced Generic MAC Header (AGMH) with a first length field, a MAC PDU Length Extended Header (MLEH) with a second length field, and payload, and transmitting the MAC PDU to a receiver. The first length field and the second length field are used for calculating a total length of the MAC PDU. | 2012-01-19 |
20120014367 | Methods 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. | 2012-01-19 |
20120014368 | MOBILE STATION TRANSMISSIONS IN RESPONSE TO NETWORK ACKNOWLEDGMENT POLLING - Methods and apparatus for mobile station transmissions in response to network acknowledgment polling are disclosed. An example method in a mobile station disclosed herein comprises receiving a poll from a network, the poll requesting piggy-backed ACK/NACK (PAN) information, and transmitting a control message in response to the poll if a previously transmitted data block is associated with a tentative acknowledgment state, the control message including acknowledgment information. | 2012-01-19 |
20120014369 | SYSTEMS AND METHODS FOR ASSIGNMENT AND ALLOCATION OF MIXED-TYPE COMBINATIONS OF SLOTS - Methods and systems for performing allocation of mixed-type combinations of slots are provided. Specifically, in a single assignment message, an allocation of slots over two frames and slots over four frames is performed. These can be RTTI and BTTI blocks for example. | 2012-01-19 |
20120014370 | EQUIPMENT, SYSTEM AND METHODOLOGIES FOR TIME SYNCHRONIZATION BETWEEN MULTIPLE RF FREQUENCIES, RF POWER, AND ANTENNA SELECTION OF BOOSTERS IN A SEGMENTED LISTENING AREA DELIVERING LOCALIZED AUXILIARY INFORMATION - Radio broadcasting equipment is provided that enables targeted radio broadcast advertisement delivery in an radio broadcast area wherein a plurality of radio auxiliary or booster transmitters are used to transmit localized auxiliary information to supplement broadcast area wide content transmitted on the same frequency. Moreover, these auxiliary or booster transmitters are configured to transmit different localized auxiliary information to supplement a plurality of main transmitters transmitted on corresponding specified transmission frequencies using Time Division Multiple Access frame structure. | 2012-01-19 |
20120014371 | METHOD AND APPARATUS FOR AUTONOMOUS UPLINK TIMING ADVANCE MAINTENANCE - According to some embodiments, a mobile device may calculate adjustments of a timing advance based on a determined relative downlink timing change. Adjustments of the timing advance may be made toward a target timing advance in accordance with an adjustment parameter. The adjustment parameter may be adapted based on a received timing advance command and at least one of: a calculated adjustment of the timing advance; and a difference between the target timing advance and the timing advance. In another aspect, self-adjustment of a timing advance performed by a mobile device may be configured based on a property of a communication channel between the mobile device and a base station. In another aspect, self-adjustment of a timing advance performed by a mobile device may be configured based on timing advance commands received from a base station. | 2012-01-19 |
20120014372 | ALGORITHM FOR MANAGING DATA LOSS IN SOFTWARE DEMODULATORS - Embodiments of methods for receiving and processing multi-band signals in wideband and narrowband environments are described herein. Other embodiments may be described and claimed. | 2012-01-19 |
20120014373 | WIRELESS TRANSMITTER, WIRELESS RECEIVER, AND PREAMBLE SEQUENCE GENERATION METHOD - Provided is a wireless transmitter capable of accurately specifying the number of multiplexed streams and correctly decoding the data signals when a preamble sequence transmitted from any antenna of a wireless transmitter is detected. In this device, a multiplex count determination unit ( | 2012-01-19 |
20120014374 | Method, Device, and Computer Program Product for Adaptive Routing of Communications Across One or More Networks - Communications are adaptively routed across at least one network. Responsive to a dynamic user request for routing of communications at a particular service level, available routes within the network are determined for routing the communications. Route quality characteristics are determined for routes within the network for routing the communications. A route for routing the communications for the user is determined based on the available routes, the route quality characteristics, and the particular service level requested by the user. | 2012-01-19 |
20120014375 | Method for Telephone Connection Preservation - A method is provided in which a server is placed in the communication flow between a first communication terminal and a second communication terminal. The server executes connection preservation software which operates to keep the second communication terminal connected when the first communication terminal shuts down its communication software (e.g., VoIP application, etc.). Specifically, the connection preservation software transmits signaling that causes the connection to be transferred from the first communication terminal to a communication network node and vice versa. | 2012-01-19 |
20120014376 | METHOD AND SYSTEM FOR A GIGABIT ETHERNET IP TELEPHONE CHIP WITH 802.1P AND 802.1Q QUALITY OF SERVICE (QOS) FUNCTIONALITIES - A method for processing data may include receiving packetized data via at least one of a plurality of input ports in an Ethernet switch. Each of the plurality of input ports may be partitioned into a plurality of virtual local area network (VLAN) port domains with an assigned port domain identification (ID) for processing 802.1 Class of Service (CoS) priority and Quality of Service (QoS) packetized data. The Ethernet switch may be integrated within a single gigabit Ethernet IP telephone chip, the received packetized data having assigned at least one priority class. One or more bits in at least one of a plurality of registers in the Ethernet switch may be used to filter at least one ingress frame in the packetized data, based on at least one packet header attribute of the at least one ingress frame. | 2012-01-19 |
20120014377 | DISTRIBUTED PACKET-BASED TIMESTAMP ENGINE - A system handles timing information within a packet-switched network. The system classifies packets for processing depending on the packet type. After classification, a new timestamp value may be produced depending on the packet classification. The new timestamp value may use a timestamp value from the received packet, a value from a local clock, and an offset value. The timestamp value may be written into the packet, depending on the packet classification, and checksum-type fields may additionally be updated in the packet. In some embodiments, multiple physical layer circuits are integrated with a local clock circuit. | 2012-01-19 |
20120014378 | METHOD AND APPARATUS FOR ASSESSING VoIP PACKET PRODUCTION AND PACKET TRANSMISSION AND INDICATION AT THE END POINTS INVOLVED IN THE VoIP COMMUNICATION - The present invention relates to a method and a device for assessing and indicating the quality of VoIP calls, comprising the steps of end-point reception of the VoIP packets over an IP network link, end-point determination of the VoIP quality (QRX) of the received VoIP packet sequence, the VoIP quality (QTX) of the transmitted VoIP packet sequence, exchange of the quality information (QRX and QTX) between the end points, calulation of the difference (QRX-QTX) between the received VoIP quality and the VoIP quality transmitted by the other side; supply of the determined VoIP quality information to a quality indication; and end-point indication of the quality information in optical and/or acoustic form. | 2012-01-19 |
20120014379 | DIFFERENTIATED PRIORITY LEVEL COMMUNICATION - Provided are methods, apparatuses and systems for providing prioritized data distribution at a customer premise. A network access component may receive priority information from a trusted source, the priority information being indicative of an association between at least one identifier and a respective priority level. The network component may determine a particular identifier associated with data received from a communication entity. The network access component may determine a particular priority level associated with the data based on the particular identifier and the priority information. The network component may also prioritize at least a portion of the data on a basis of the particular priority level. | 2012-01-19 |
20120014380 | Method and Apparatus of Informing a Network of Change of User Equipment Capability - An embodiment method of informing a network of a change of user equipment capability includes receiving, by a network, a register request message carrying information of new user equipment capability to from a user equipment, analyzing, by the network, the register request message, and storing the information of new user equipment capability for reference by subsequent establishment of a session, stopping a current registration timer on the server side set for the user equipment, initiating a new registration timer on the server side for the user equipment, and sending a response message carrying information of the new registration timer on the server side to the user equipment so as to reset a registration timer on the user side based on information of the new registration timer on the server side in the response message. The capability change is informed to the network in time. | 2012-01-19 |
20120014381 | VOICE SERVICE IN EVOLVED PACKET SYSTEM - Methods and apparatus to manage voice service in evolved packet systems are disclosed. An example method in a user equipment (UE) with a first indicator related to voice services in an Evolved Packet System (EPS), the method includes receiving a Non Access Stratum (NAS) protocol response message with a second indicator and responsive to the first indicator and the second indicator, sending a notification to at least one of a user or an upper layer that a CS domain is not available. | 2012-01-19 |
20120014382 | SYSTEMS AND METHODS FOR TERMINATING COMMUNICATION REQUESTS - A IP telephony service allows customers to form user groups. Each user group can include multiple telephony devices that are associated with one or more users. One or more group identifiers would be associated with each user group. When an incoming communication is directed to a user group, a group identifier is used to retrieve a list of the members of the group, or a list of devices that correspond to the members of the user group. The communication is then sent to one or more members of the group, or to one or more of the devices that correspond to members of the user group. Handling preferences may determine how the incoming communication is delivered. In some instances, the incoming communication could be a telephone call. In other instances, the incoming communication could be a SMS message or an instant message. | 2012-01-19 |
20120014383 | Access Node Comprising VOIP Cards with Common IP/MAC Address - Disclosed are methods and arrangements in a VoIP access node for handling downstream and upstream RTP packets associated with an ongoing VoIP call. One common IP address can be assigned to the all of the RTP traffic of an access node instead of assigning one IP address per VoIP card, This may be done by identifying the destination VoIP card based on the destination UDP port number in a received RTP packet. The number of public IP addresses needed for VoIP service may be reduced without increasing the cost of the access node. | 2012-01-19 |
20120014384 | Method And System For Modularized Configurable Connector System For Ethernet Applications - A first modular Ethernet connector and a coupled corresponding second modular Ethernet connector may communicate data based on Ethernet standards. The Ethernet connectors may be configurable and comprise at least twelve contact positions. Different connector configurations may support widely different data rates. The Ethernet connectors may fit within a handheld device and/or may be sized to fit greater than twenty-four connectors in a 1 RU faceplate of a 19 inch rack. A variable number of conductor and/or ground contact positions may be unpopulated or populated with contacts of various materials. The Ethernet connectors may be configured with a properly fitting latching mechanism, with connector shielding and/or to ground cable shielding. The Ethernet connectors may be sized and fitted for secure coupling. The Ethernet connectors may be coupled to a twisted pair cable. Differential pair conductors are terminated adjacently. The Ethernet connectors may comprise POE, a PHY and/or an antenna. | 2012-01-19 |
20120014385 | METHOD AND APPARATUS FOR UPDATING BINDING RELATIONSHIP OF ASSOCIATED BIDIRECTIONAL LABEL SWITCHED PATH - Embodiments of the present invention provide a method for updating a binding relationship of an associated bidirectional label switched path (Bidi-LSP). The method includes: sending a request packet to a destination node, where the request packet carries a parameter for updating the binding relationship and is designed to request updating of the binding relationship; receiving a reply packet from the destination node, where the reply packet carries a binding updating processed result and is designed to respond to the request packet; and updating the binding relationship of the associated Bidi-LSP according to the binding updating processed result carried in the reply packet. | 2012-01-19 |
20120014386 | Delegate Gateways and Proxy for Target Hosts in Large Layer 2 and Address Resolution with Duplicated Internet Protocol Addresses - An apparatus comprising a plurality of district boundary bridges (DBBs) in a plurality of second network districts configured to couple to a plurality of core bridges in a core network district and to a plurality of end-stations in the second network districts via a plurality of intermediate switches in the second network districts; wherein the core bridges and the DBBs are aware of a plurality of Media Access Control (MAC) addresses of the DBBs but are not aware of Internet Protocol (IP) addresses and MAC addresses of the end-stations, and wherein the IP addresses of the end-stations are mapped in a directory service (DS) in the core network district to the MAC addresses of the corresponding DBBs in the corresponding second network districts of the end-stations. | 2012-01-19 |
20120014387 | Virtual Layer 2 and Mechanism to Make it Scalable - An apparatus comprising a service network and a plurality of Layer 2 networks at a plurality of different physical locations coupled to the service network via a plurality of edge nodes at the Layer 2 networks, wherein the edge nodes are configured to maintain a plurality of Internet Protocol (IP) addresses of a plurality of hosts across the Layer 2 networks, and wherein the IP addresses of the hosts in each of the Layer 2 networks are mapped by the other Layer 2 networks to a Media Access Control (MAC) address of each of the edge nodes in the same Layer 2 networks of the hosts. | 2012-01-19 |
20120014388 | Path selection method, information processor, network system, and path selection program - A path selection method, an information processor, a network system, and a path selection program are provided which rapidly determine a path that has no loop when determining the path by using a control server to probabilistically select a pass node. A network having a plurality of paths from a source to a destination is controlled. A node forming the path is selected on the basis of a node-to-node transfer probability, and in the case where the selected node is a node that has already been passed through on the path, the transfer probability is reset such that the selection of the node is suppressed. | 2012-01-19 |
20120014389 | PROVIDING NETWORK COMMUNICATIONS SATISFYING APPLICATION REQUIREMENTS USING VIRTUALIZATION - A method of providing network communications includes receiving, at a second device via a virtual network connection associated with virtual dispersive routing (VDR) software that virtualizes network capabilities of the second device, a packet communicated from a first device over a connection path comprising a plurality of other devices, the packet including a header and a payload, the payload including data appended thereto by one or more devices of the plurality of devices; and determining, at the second device by the VDR software, whether the connection path satisfies one or more requirements of an application running on the second device, the determination being based at least in part on the data appended to the payload by the one or more devices of the plurality of other devices. | 2012-01-19 |
20120014390 | PROCESSOR TOPOLOGY SWITCHES - A first processor has a processor port for peer-to-peer processor communications. A switch provides for switching communications from a path between said first processor and a second processor to a path between said first processor and a third processor (and vice-versa). | 2012-01-19 |
20120014391 | DATA COMMUNICATION METHOD AND DATA COMMUNICATION APPARATUS - A data communication method and a data communication apparatus are provided. The method mainly includes: receiving, by an adapter card, information elements sent by a first switching network board, in which a format of the information element is an information element format capable of being identified by the first switching network board; and performing, by the adapter card, format conversion on the information elements according to an information element format capable of being identified by a second switching network board, and sending the converted information elements to the second switching network board. In this manner, different types of switching network boards can be interconnected and communicate with each other, so as to implement data transmission between network devices having different structures. | 2012-01-19 |
20120014392 | FLEXIBLE TIME-FREQUENCY MULTIPLEXING STRUCTURE FOR WIRELESS COMMUNICATION - Techniques for efficiently sending data in a wireless communication system are described. Code division multiplexing (CDM) or orthogonal frequency division multiplexing (OFDM) may be selected for each traffic segment, which may correspond to specific time frequency resources. An output waveform comprised of traffic and overhead segments may be generated. Each traffic segment may carry CDM data at a chip rate if CDM is selected or OFDM data if OFDM is selected. OFDM symbols may be generated at a sample rate that may be an integer ratio of the chip rate and may have a duration that may be determined based on the traffic segment duration. The output waveform may carry CDM data and/or OFDM data on subcarriers corresponding to at least one carrier in a spectral allocation and may further carry OFDM data on remaining usable subcarriers in the spectral allocation. | 2012-01-19 |
20120014393 | METHOD OF MANAGING RESOURCES IN A TELECOMMUNICATION NETWORK OR A COMPUTING SYSTEM - The present invention includes a method for sharing a quantity of resources between several users in a telecommunication network or a computing system starting from a given date. The method includes updating a tree, each node of which represents a time period. The tree contains at least one node representing a time period including the given date. The concatenation of the time periods represented by daughter nodes of a parent node represent the time period represented by the parent node. | 2012-01-19 |
20120014394 | SYSTEM, DEVICE, METHOD AND COMPUTER PROGRAM PRODUCT FOR MANAGING DEVICES - A system for managing a communication device having a first function of using a first communication protocol and a second function of using a second communication protocol is provided. The communication device is connected to a network including a first device using the first communication protocol and a second device using the second communication protocol. The system is provided with an inputting system that accepts an input for changing an operation regarding the communication of the communication device from a user, and a judging system that judges whether a trouble would arise in communication, in which the communication device is involved, based on the input inputted by the user through use of the inputting system. | 2012-01-19 |
20120014395 | COMMUNICATION ADAPTER APPARATUS - An object is to provide a communication adapter apparatus that allows main equipment to be easily connected to a plurality of communication networks based on different communication protocols. The communication adapter apparatus according to the present invention is a communication adapter apparatus connecting main equipment to a communication network, which includes a main equipment interface section connecting to the main equipment, a memory that stores a plurality of communication protocol stacks corresponding to various communication networks, a microcomputer, an Ethernet (registered trademark) communication connecting connector that is connected to the communication network, and a communication control circuit for controlling transmission and reception of communication data, in which the microcomputer includes a protocol selecting section for selecting any one from among the plurality of communication protocol stacks and a protocol abstraction section for performing data conversion for the data that the main equipment transmits to and receives from a communication network in accordance with a protocol stack selected by the protocol selecting section. | 2012-01-19 |
20120014396 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING MULTIPLEXED PACKET STREAM OVER SINGLE TRANSMISSION CHANNEL - A method for transmitting a main packet stream generated by multiplexing a plurality of substreams, using a single transmission channel, includes packeting each of the plurality of substreams and generating substream packets; allocating substream sequence information to the substream packets according to a sequence in which the substream packets are generated; allocating main packet stream sequence information to the substream packets according to a sequence in which the substream packets are inputted; and multiplexing inputted substream packets and generating the main packet stream. | 2012-01-19 |
20120014397 | CONTINUOUS WAVE OR ULTRAFAST LASERS - A laser system comprises: a seed oscillator, having a seed output; dispersive optics, operative to receive the seed output and divide the seed output into spectrally separate seed components; an array of individually addressable, phase adjustable laser amplifiers corresponding to the spectrally separate components, each laser amplifier receiving as its seed one of the spectrally separate seed components and producing one of the spectrally separate amplified components; and phase actuators controlling the individually addressable, phase adjustable laser amplifiers. A method of operating a laser system comprises: generating a seed signal; dividing the seed signal into spectrally separate component signals; amplifying the spectrally separate component signals; recombining the spectrally separate component signals into an amplified output; and controlling phases of the amplified spectrally separate component signals. Both single-pass and double-pass amplifier array versions are disclosed. | 2012-01-19 |
20120014398 | WAVELENGTH-TUNABLE EXTERNAL CAVITY LASER MODULE - Provided is a wavelength-tunable external cavity laser module. The wavelength-tunable external cavity laser module includes: a gain medium generating light; an optical waveguide combined with the gain medium and including a Bragg grating and a thin film heater adjusting a temperature of the Bragg grating; and a high frequency transmission medium delivering a high frequency signal to the gain medium, wherein the high frequency transmission medium controls an operating speed of the light. | 2012-01-19 |
20120014399 | Grating External-Cavity Laser and Quasi-Synchronous Tuning Method Thereof - A method for quasi-synchronous tuning of laser wavelength or frequency of grating external-cavity laser and a corresponding laser are provided. A grating or mirror is rotated around a quasi-synchronous tuning point (P | 2012-01-19 |
20120014400 | OUTPUT POWER STABILIZATION FOR LASER DIODES USING THE PHOTON-COOLING DEPENDENT LASER VOLTAGE - It is an object of the invention to simplify the power stabilization of laser diodes. For this purpose, a laser device comprising a die and thereon a first laser diode and a second laser diode is provided. The second laser diode has a structure or element that avoids lasing if a supply voltage is applied that is sufficient for the first semiconductor laser cavity to emit laser light. | 2012-01-19 |
20120014401 | SEMICONDUCTOR LASER DRIVER AND IMAGE FORMING APPARATUS INCORPORATING SAME - A semiconductor laser driver to execute automatic power control (APC) for multiple semiconductor lasers based on a common APC output from an image controller. The semiconductor laser driver includes a drive circuit to generate an individual APC signal to execute APC for each semiconductor laser based on the common APC signal. | 2012-01-19 |
20120014402 | LASER MODULE - A laser module LM is provided with a quantum cascade laser | 2012-01-19 |
20120014403 | Laser Apparatuses With Large-Number Multi-Reflection Pump Systems - A large number of passes of pump light through an active mirror in a solid state disk laser is realized using a pair of coupled imaging systems, where the optical axes of imaging systems are not coincident. Two imaging systems are optically coupled, so that an image of the first imaging system is an object of the second imaging system, and vice versa. An active mirror is disposed at the object or image plane, or at the focal plane of any one of the coupled imaging systems, where the position of the reflected pump beam during the multi-reflection between the first and second imaging systems is substantially unchanged. | 2012-01-19 |
20120014404 | Apparatus and Method for Determining the Thermal Stability of Fluids - A thermal oxidation tester is shown for determining thermal stability of a fluid, particularly hydrocarbons when subjected to elevated temperatures. The tendency of the heated fluid to oxidize and (1) form deposits on a surface of a heater tube and (2) form solids therein, are both measured at a given flow rate, temperature and time. The measured results are used to determine whether a fluid sample passes or fails the test. Results of measurements are recorded in a memory device on one end of the heater tube on which the deposits were made. | 2012-01-19 |
20120014405 | Drop Counter And Flow Meter For Apparatus And Method For Determining The Thermal Stability Of Fluids - A thermal oxidation tester is shown for determining thermal stability of a fluid, particularly hydrocarbons when subjected to elevated temperatures. The tendency of the heated fluid to oxidize and (1) form deposits on a surface of a heater tube and (2) form solids therein, are both measured at a given flow rate, temperature and time. The measured results are used to determine whether a fluid sample passes or fails the test. Sample flow rate is important in the jet fuel thermal oxidation test. Current practice requires manual drop counting or flow confirmation with the use of volumetric glassware. An apparatus is described to precisely measure the flow rate and automatically perform flow rate check using a drip rate method and/or volumetric method. | 2012-01-19 |
20120014406 | CONTAINERS USED IN DETERMINING THE THERMAL STABILITY OF FUELS - A thermal oxidation tester is shown for determining thermal stability of a fluid, particularly hydrocarbons, when subjected to elevated temperatures. The tendency of the heated fluid to oxidize and (1) form deposits on a surface of a heater tube and (2) form solids therein which are both measured at a given flow rate, temperature and time. The measured results are used to determine whether a fluid sample passes or fails the test. Specifically constructed containers used in a thermal oxidation tester are shown. These containers (1) reduce physical contact to hydrocarbon test fuels, (2) reduce exposure to hydrocarbon fuel vapors, (3) reduce environmental impact by reducing chemical spills, and (4) improve overall work flow of test. | 2012-01-19 |
20120014407 | Auto Priming and Flushing an Apparatus for Determining the Thermal Stability of Fluids - A thermal oxidation tester is shown for determining thermal stability of a fluid, particularly hydrocarbons when subjected to elevated temperatures. The tendency of the heated fluid to oxidize and (1) form deposits on a surface of a heater tube and (2) form solids therein, are both measured at a given flow rate, temperature and time. The measured results are used to determine whether a fluid sample passes or fails the test. At the beginning of each test, the test sample is aerated with dry air until saturation. Simultaneously, the test equipment is primed to remove pockets of air there from. After each test, the test equipment is flushed to remove the test sample there from. | 2012-01-19 |
20120014408 | Detecting a Short in an Apparatus and Method for Determining the Thermal Stability of Fluids - A thermal oxidation tester is shown for determining thermal stability of a fluid, particularly hydrocarbons when subjected to elevated temperatures. The tendency of the heated fluid to oxidize and (1) form deposits on a surface of a heater tube and (2) form solids therein, are both measured at a given flow rate, temperature and time. The measured results are used to determine whether a fluid sample passes or fails the test. Results of measurements can be recorded in a memory device on one end of the heater tube on which the deposits were made. A method and apparatus is also provided to determine if the isolated heater tube has an electrical short to ground through the test section housing. | 2012-01-19 |
20120014409 | Dampening Apparatus and Method for Single Piston Pump Used in Determining the Thermal Stability of Fluids - A thermal oxidation tester is shown for determining thermal stability of a fluid, particularly hydrocarbons when subjected to elevated temperatures. The tendency of the heated fluid to oxidize and (1) form deposits on a surface of a heater tube and (2) form solids therein, are both measured at a given flow rate, temperature and time. The measured results are used to determine whether a fluid sample passes or fails the test. Results of the measurements are recorded. The fluid under test is pumped with a low volume, high pressure, single piston pump with only a small fluctuation (pulsation) in output flow. | 2012-01-19 |
20120014410 | CATALYST OVERHEAT PREVENTION APPARATUS - A catalyst overheat prevention apparatus has a temperature obtaining portion that estimates a convergence temperature of a catalyst provided in the exhaust system of an internal combustion engine and the present temperature of the catalyst. The catalyst overheat prevention apparatus also has a fuel increment calculation portion, a comparison portion, a correction portion, and a fuel increment setting portion, which are used to execute OT fuel increase control when the convergence temperature and present catalyst temperature obtained by the temperature obtaining portion are equal to or higher than an OT determination temperature. The catalyst overheat prevention apparatus also has a present temperature correction portion that corrects the present catalyst temperature to be equal to the OT determination temperature when the present catalyst temperature is equal to or higher than the OT determination temperature and the convergence temperature is equal to the OT determination temperature. | 2012-01-19 |
20120014411 | CONSTANT AMPLITUDE DECODING APPARATUS AND METHOD FOR MULTIPLEXED DIRECT-SEQUENCE SPREAD COMMUNICATION SYSTEM - A constant amplitude decoding apparatus and method for multiplexed direct-sequence spread spectrum communication system are provided. The constant amplitude decoding apparatus includes: a despreading and demultiplexing module receiving a data stream of a constant amplitude and despreading and demultiplexing the received data stream to restore it to a 2D signal; a decoding module first performing a vertical decoding on the 2D signal and then performing horizontal decoding thereon; a control module determining whether to repeatedly perform vertical decoding and horizontal decoding; and a bit stream information output module outputting the decoding results from the decoding module as a bit stream. | 2012-01-19 |
20120014412 | POSITIONING SYSTEM AND POSITIONING METHOD - A positioning system and a positioning method which suppress the occurrence of jitter to improve positioning accuracy. A base station ( | 2012-01-19 |
20120014413 | METHOD FOR FAST SYNCHRONIZATION AND FREQUENCY HOP SEQUENCE DETECTION IN WIRELESS SENSOR NETWORKS - A method of synchronizing wireless devices includes establishing a recurring sequence of frequency channels at which the wireless devices are to communicate. The frequency channels are divided into a plurality of groups. Synchronization information is transmitted at a respective first frequency channel in each of the groups of frequency channels during a first sampling time period. One of the groups of frequency channels is selected. A wireless device is used to sample each of the frequency channels in the selected group during the first sampling time period. Non-synchronization information is transmitted after the first sampling time period. Synchronization information is transmitted at a next respective frequency channel in each of the groups of frequency channels during a next sampling time period. The next sampling time period occurs after the transmitting of the non-synchronization information. | 2012-01-19 |
20120014414 | APPARATUS AND METHOD FOR MANAGING CHANNEL RESOURCE IN BEACON-ENABLED WIRELESS PERSONAL AREA NETWORK (WPAN) - Provided are a node device of a beacon-enabled Wireless Personal Area Network (WPAN) managing a channel resource and a method thereof. The node device may generate a pseudo random binary sequence (PRBS) and generate a hopping sequence based on a number of available channels using the PRBS, thereby generating a hopping sequence having a characteristic of pseudo randomness and selecting a channel to be hopped, using the hopping sequence. | 2012-01-19 |
20120014415 | TRANSMITTER BEAMFORMING STEERING MATRIX PROCESSING AND STORAGE - A mechanism for processing beamforming steering matrices in a transceiver system. A plurality of beamforming steering matrices associated with a plurality of subcarriers of an RF signal received at the transceiver system are generated. The beamforming steering matrices are compressed and stored. The beamforming steering matrices may also be grouped or sub-sampled prior to being stored. The beamforming steering matrices are decompressed and ungrouped before being applied to data to be transmitted. Prior to ungrouping the beamforming steering matrices, a phase difference between corresponding beamforming steering vectors of consecutive beamforming steering matrices is determined. Phase rotation is performed on the corresponding beamforming steering vectors based on the determined phase difference associated with the corresponding beamforming steering vectors to improve phase continuity between consecutive beamforming steering matrices. | 2012-01-19 |
20120014416 | Narrowband Interference Cancellation Method and Circuit - A narrowband interference (NBI) canceller is coupled to an A/D converter to receive an input signal and supply an NBI-canceled signal to an error correcting decoder. In the NBI canceller, a first arithmetic unit receives the input signal and a predicted-interference signal, and supplies a difference thereof as the interference-canceled signal. A slicer receives the interference-canceled signal and supplies a decision signal. A second arithmetic unit subtracts the decision signal from the input signal to generate a noise signal. A coarse frequency estimator receives the noise signal and analyzes the frequency spectrum to generate a coarse estimate of a fundamental frequency of the NBI. The coarse estimate is used by an adaptive narrowband interference predictor to generate the predicted-interference signal while adaptively tracking the narrowband interference. Use of the NBI canceller in a transceiver can eliminate link drop caused by operation of wireless devices that generate EMI in a cable. | 2012-01-19 |
20120014417 | SYSTEM AND METHOD FOR TRANSMITTING PILOT AND DATA SYMBOLS IN A RELAYED-WIRELESS COMMUNICATIONS NETWORK - Techniques are generally described for estimating a communication channel using wirelessly transmitted and retransmitted signals, each transmitted at a different power ratio. An example wireless communications system may include a base station, a relay station and a wireless device. The base station may include a transmitter configured to transmit a first signal, wherein the first signal includes pilot and data symbols with a first power ratio. The relay station may include a receiver configured to receive the first signal, and a transmitter configured to retransmit the first signal as a second signal, wherein the second signal includes pilot and data symbols with a second power ratio. The wireless device includes a receiver configured to receive the first and second signals, i.e. the transmitted and retransmitted pilot and data symbols having the first and second power ratios are received, and estimate a communications channel from the received signals. | 2012-01-19 |
20120014418 | Multi-configuration adaptive layered steered space-time coded system and method - The multi-configuration adaptive layered steered space-time coded (LSSTC) wireless transmission system utilizes Layered Steered Space-Time Codes (LSSTC), a recently proposed multiple-input multiple-output (MIMO) system that combines the benefits of the vertical Bell Labs space-time (V-BLAST) scheme, space-time block codes (STBC) and beamforming. A multi-configuration transmission scheme based on LSSTC and V-BLAST systems uses threshold-based decision making to change the modulation type and the MIMO transmission scheme in order to optimize error performance. | 2012-01-19 |
20120014419 | Reducing Transmit Signal Components of a Receive Signal of a Transceiver Using a Shared DAC Architecture - Embodiments of a method and apparatus of reducing transmit signal components of a receive signal of a transceiver are disclosed. One embodiment of an apparatus includes a transceiver that simultaneously transmits a transmit signal and receives a receive signal. The transceiver includes a transmit DAC that generates the transmit signal based on a transmit digital signal stream. The transmit DAC includes a plurality of transmit DAC circuit elements, and a plurality of transmit DAC switches that control which of the plurality of transmit DAC circuit elements contribute to generating the transmit signal. The transceiver additionally includes an echo cancellation DAC that generates an echo cancellation signal based on the transmit digital signal stream. The echo cancellation DAC includes a plurality of echo cancellation DAC circuit elements, and a plurality of echo cancellation DAC switches that control which of the plurality of echo cancellation DAC circuit elements contribute to generating the echo cancellation signal. A data controller receives the transmit digital signal stream, and controls both the plurality of transmit DAC switches and the plurality of echo cancellation DAC switches. A canceller (summer) cancels at least a portion of the receive signal by summing the echo cancellation signal with the receive signal. | 2012-01-19 |
20120014420 | Method and Apparatus for Fast Link Recovery - Embodiments of methods and apparatus for fast link recover are disclosed. One method includes sensing a link quality failure of a link between a receiver and a transmitter. If a link quality failure is sensed, then the receiver selects new pre-coder settings for the transmitter. The receiver communicates the new pre-coder settings to the transmitter. The transmitter applies the new pre-coder settings. The receiver computes its equalizer settings based on the new pre-coder settings of the transmitter. One apparatus or transceiver includes a means for determining a link quality failure of a link between the transceiver and a link partner transceiver. The transceiver selects new pre-coder settings for the link partner transceiver if a link quality failure is sensed. Additionally, the transceiver communicates the new pre-coder settings to the link partner transceiver, and computes its equalizer settings based on the new pre-coder settings of the link partner transceiver. | 2012-01-19 |
20120014421 | COMPRESSION OF BASEBAND SIGNALS IN BASE TRANSCEIVER SYSTEM INTERFACES - A signal compression method and apparatus for a base transceiver system (BTS) in a wireless communication network provides efficient transfer of compressed signal samples over serial data links in the system. For the uplink, an RF unit of the BTS compresses baseband signal samples resulting from analog to digital conversion of a received analog signal followed by digital downconversion. The compressed signal samples are transferred over the serial data link to the baseband processor then decompressed prior to normal signal processing. For the downlink, the baseband processor compresses baseband signal samples and transfers the compressed signal samples to the RF unit. The RF unit decompresses the compressed samples prior to digital upconversion and digital to analog conversion to form an analog signal for transmission over an antenna. Compression and decompression can be incorporated into operations of conventional base stations and distributed antenna systems, including OBSAI or CPRI compliant systems. | 2012-01-19 |
20120014422 | COMPRESSION OF BASEBAND SIGNALS IN BASE TRANSCEIVER SYSTEM RADIO UNITS - A signal compression method and apparatus for a base transceiver system (BTS) in a wireless communication network provides efficient transfer of compressed signal samples over serial data links in the system. For the uplink, an RF unit of the BTS compresses baseband signal samples resulting from analog to digital conversion of a received analog signal followed by digital downconversion. The compressed signal samples are transferred over the serial data link to the baseband processor then decompressed prior to normal signal processing. For the downlink, the baseband processor compresses baseband signal samples and transfers the compressed signal samples to the RF unit. The RF unit decompresses the compressed samples prior to digital upconversion and digital to analog conversion to form an analog signal for transmission over an antenna. Compression and decompression can be incorporated into operations of conventional base stations and distributed antenna systems, including OBSAI or CPRI compliant systems. | 2012-01-19 |
20120014423 | Peak detector having extended dynamic range - According to one embodiment, a peak detector having extended dynamic range comprises a first differential output coupled to a supply voltage of the peak detector by a first load and coupled to ground by first and second switching devices, and a second differential output coupled to the supply voltage by a second load and coupled to ground by third and fourth switching devices. The control terminals of the first, second, third, and fourth switching devices receive a common bias voltage, and the respective first and second control terminals are configured as differential inputs of the peak detector. In some embodiments, corresponding first power terminals of the first and second switching devices share a first common node further shared by the first differential output, and corresponding first power terminals of the third and fourth switching devices share a second common node further shared by the second differential output. | 2012-01-19 |
20120014424 | COMMUNICATING CHANNEL STATE INFORMATION USING PREDICTIVE VECTOR QUANTIZATION - Techniques are generally described here for communicating channel state information using predictive vector quantization. In some examples, a method may include measuring channel state information based, at least in part, on signals received over a communications channel. An error vector may be calculated between the measured channel state information and predicted channel state information. The error vector may be quantized, and subsequent channel state information may be predicted based, at least in part, on the quantized error vector. | 2012-01-19 |
20120014425 | METHOD AND APPARATUS FOR DETERMINING UE MOBILITY STATUS - A radio user equipment (UE) mobility status is determined in a communications node. UE mobility status measurements associated with the UE communicating over a radio channel are performed. The UE mobility status corresponds to a degree of variation of the radio channel over time. Channel characteristics of the radio channel at a first time and at a second later time are determined. Based on the determined channel characteristics, a channel characteristic error metric is determined and compared to a predetermined threshold. The UE mobility status is determined based on one or more iterations of the threshold comparison. | 2012-01-19 |
20120014426 | METHODS AND APPARATUS FOR DIRECT SYNTHESIS OF RF SIGNALS USING DELTA-SIGMA MODULATOR - Methods and apparatus are provided for direct synthesis of RF signals using a delta-sigma modulator. An RF signal is synthesized from an input signal by quantizing the input signal using a quantizer, such as a one bit quantizer; determining a quantization error associated with the quantizer; generating an error prediction value using an error predictive filter, wherein the error predictive filter comprises one or more filter zeroes on a unit circle for one or more desired frequencies of f | 2012-01-19 |
20120014427 | Methods and Apparatus for Determining a Phase Error in Signals - An integrated circuit includes samplers, a phase error determination circuit, and periodic signal generators. The samplers generate respective sampled signals by sampling respective input signals in response to respective periodic signals. The input signals have a common phase error. The phase error determination circuit receives the sampled signals from the samplers. The phase error determination circuit generates a representation of the common phase error of the input signals in response to sampled signals received in a set-up mode in which the samplers sample respective input signals having a common bit pattern. The periodic signal generators generate the periodic signals differing in phase from one another by defined phase differences in the set-up mode and subject the periodic signals to a common phase shift in a normal mode in response to the representation of the common phase error. The common phase shift matches the common phase error of the input signals. | 2012-01-19 |
20120014428 | METHODS AND SYSTEMS FOR INITIAL FCH PROCESSING - Methods and apparatus for initially decoding a frame control header (FCH) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) system in an effort to accurately determine the downlink frame prefix (DLFP) such that the remainder of an OFDM/A frame may be properly decoded are provided. Used, for example, when boosting factors applied in the transmitter to various elements of the OFDM/A frame and/or available pilots for the FCH are unknown, such methods may utilize a preamble channel estimate, the FCH pilots, or a combination thereof. | 2012-01-19 |
20120014429 | Methods and Systems for Parallel Video Encoding and Parallel Video Decoding - Aspects of the present invention are related to systems and methods for parallel video encoding and parallel video decoding. | 2012-01-19 |
20120014430 | IMAGE ENCODING DEVICE AND IMAGE ENCODING METHOD - An image encoding device has: a first acquisition unit and a second acquisition unit that acquire a moving image; an encoding unit that encodes the acquired moving image in accordance with a predetermined encoding order and a predetermined encoding method; and a reception unit that receives an instruction to stop performing a process. When the reception unit receives the instruction, the encoding unit uses a last acquired image as an image that was to be acquired after the last acquired image and encodes all acquired images. | 2012-01-19 |
20120014431 | Methods and Systems for Parallel Video Encoding and Parallel Video Decoding - Aspects of the present invention are related to systems and methods for parallel video encoding and parallel video decoding. | 2012-01-19 |