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    92.
    发明专利
    未知

    公开(公告)号：DE60228467D1

    公开(公告)日：2008-10-02

    申请号：DE60228467

    申请日：2002-08-21

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KWAK JOSEPH A

    IPC: H04B7/216 ,  H04L1/16 ,  H04B1/69 ,  H04B7/00 ,  H04B7/155 ,  H04B7/26 ,  H04J11/00 ,  H04L1/00 ,  H04L1/18 ,  H04L1/20 ,  H04L12/54 ,  H04L27/26 ,  H04L29/08 ,  H04W88/08

    Abstract: A base station comprising circuitry configured to use a first hybrid automatic repeat request (ARQ) to provide data blocks for transmission by a second hybrid ARQ; and wherein the circuitry is further configured to determine channel quality of subcarriers in an orthogonal frequency division multiplex (OFDM) frequency set; wherein the circuitry is further configured to transmit the provided data blocks by the second hybrid ARQ; wherein each second hybrid ARQ transmission comprises turbo coded data of at least one of the data blocks and an appended error check sequence (ECS); wherein each second hybrid ARQ transmission is an OFDM signal; wherein the second hybrid ARQ is configured to retransmit using adaptive modulation and coding; wherein the second hybrid ARQ transmissions are sent over subcarriers of the OFDM frequency set and the transmission subcarriers are selected in response to the channel quality of the OFDM frequency set; and wherein the selected subcarriers for at least one second hybrid ARQ transmission are not contiguous subcarriers.

    BASE STATION IMPLEMENTING A PHYSICAL LAYER AUTOMATIC REPEAT REQUEST
    93.
    发明专利
    BASE STATION IMPLEMENTING A PHYSICAL LAYER AUTOMATIC REPEAT REQUEST 未知

    公开(公告)号：MY135542A

    公开(公告)日：2008-05-30

    申请号：MYPI20023133

    申请日：2002-08-23

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KWAK JOSEPH A

    IPC: H04L1/16 ,  H04B1/69 ,  H04B7/00 ,  H04B7/155 ,  H04B7/26 ,  H04J11/00 ,  H04L1/00 ,  H04L1/18 ,  H04L1/20 ,  H04L12/54 ,  H04L27/26 ,  H04L29/08 ,  H04W88/08

    Abstract: A BASE STATION (30) IMPLEMENTING PHYSICAL LAYER AUTOMATIC REPEAT REQUEST INCLUDES A TRANSMITTER (38) AND A RECEIVER (52). THE TRANSMITTER (38) HAS A PHYSICAL LAYER TRANSMITTER FOR RECEIVING DATA, FORMATTING THE RECEIVED DATA INTO PACKETS, TRANSMITTING THE PACKETS AND RETRANSMITTING PACKETS IN RESPONSE TO FAILURE TO RECEIVE A CORRESPONDING ACKNOWLEDGMENT FOR A GIVEN PACKET; AN ACKNOWLEDGMENT RECEIVER (56) FOR RECEIVING THE CORRESPONDING ACKNOWLEDGMENT; AND AN ADAPTIVE MODULATION AND CODING CONTROLLER FOR COLLECTING RETRANSMISSION STATISTICS AND ADJUSTING THE PARTICULAR DATA ENCODING/MODULATION USING THE COLLECTED STATISTICS. THE RECEIVER (52) HAS A PHYSICAL LAYER RECEIVER FOR DEMODULATING THE PACKETS; A COMBINER/DECODER (50-1-50-N) FOR BUFFERING, DECODING AND DETECTING PACKET ERRORS; AND AN ACKNOWLEDGMENT GENERATOR FOR GENERATING AN ACKNOWLEDGMENT FOR EACH PACKET IF THAT PACKET HAS AN ACCEPTABLE ERROR RATE.(FIG 1B)

    METODO Y SISTEMA PARA CONSERVAR LA ENERGIA DE BATERIA DE PUNTOS DE MALLA EN UNA RED DE MALLA.
    96.
    发明专利
    METODO Y SISTEMA PARA CONSERVAR LA ENERGIA DE BATERIA DE PUNTOS DE MALLA EN UNA RED DE MALLA. 未知

    公开(公告)号：MX2007011169A

    公开(公告)日：2007-10-03

    申请号：MX2007011169

    申请日：2006-03-10

    Applicant: INTERDIGITAL TECH CORP

    Inventor： RUDOLF MARIAN ,  KWAK JOSEPH A

    IPC: G06F11/00 ,  H04W52/02

    Abstract: Se proporciona un metodo y sistema para conservar energia de puntos de malla (MP) activados por bateria en una red de malla. En una modalidad se proporciona un controlador centralizado en la red de malla. Cada una de la informacion de senal MP asociada con la conservacion de la energia de bateria de MP y proporciona indicaciones de los niveles de energia de bateria asociados con los MP respectivos al controlador centralizado. El controlador centralizado optimiza la configuracion de la red de malla en base en la informacion de senalizacion para conservar la energia de bateria de MP y las indicaciones de nivel de energia de bateria. En una modalidad alternativa, cada uno de los MP monitorea individualmente el trafico que fluye a traves del MP respectivo y un nivel de energia de bateria asociado con el MP respectivo. Cada uno de los MP determina si activa una funcion de ahorro de energia asociada con el MP respectivo y senala informacion asociada con la conservacion de la energia de bateria de MP a los MP vecinos en la red de malla.

    99.
    发明专利
    未知

    公开(公告)号：NO20065605A

    公开(公告)日：2006-12-05

    申请号：NO20065605

    申请日：2006-12-05

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KWAK JOSEPH A ,  RUDOLF MARIAN ,  RAHMAN SHAMIN ABKAR

    IPC: H04W4/02 ,  H04W4/22 ,  H04W84/12

    CPC classification number: H04W4/22 ,  G08B25/007 ,  H04W4/02 ,  H04W4/90 ,  H04W76/50 ,  H04W84/12

    Abstract: A device for identifying an emergency call in a wireless local area network includes an indicator to identify a call as an emergency call. The indicator can be a bit flag or an information element. The information element can include location information regarding the location of the station that placed the emergency call. This information can be used to locate the caller. The location information can be transmitted from the station to an access point separately from an emergency call.

    PHYSICAL LAYER AUTOMATIC REPEAT REQUEST (ARQ)
    100.
    发明专利
    PHYSICAL LAYER AUTOMATIC REPEAT REQUEST (ARQ) 未知

    公开(公告)号：GEP20063935B

    公开(公告)日：2006-10-10

    申请号：GEAP2002005464

    申请日：2002-08-21

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KWAK JOSEPH A

    IPC: H04L1/00 ,  H04L1/16 ,  H04B1/69 ,  H04B7/00 ,  H04B7/155 ,  H04B7/26 ,  H04J11/00 ,  H04L1/18 ,  H04L1/20 ,  H04L12/54 ,  H04L27/26 ,  H04L29/08 ,  H04W88/08

    Abstract: A physical automatic request repeat system comprises a transmitter and a receiver. A physical layer transmitter, at the transmitter, receives data and formats the received data into packets having a particular encoding/data modulation. The physical layer transmitter contains n channels which transmit the packets and retransmits packets in response to not receiving a corresponding acknowledgment for a given packet. An adaptive modulation and coding controller in the transmitter collects retransmission statistics and adjusts the particular encoding/data modulations using the collected statistics. The receiver has a physical layer n-channel receiver for receiving the packets. The receiver contains an n-channel hybrid ARQ combiner/decoder, which combines packet transmissions, decodes packets and detects packet errors. The receiver contains an acknowledgment transmitter which transmits an acknowledgment for each packet, if that packet has an acceptable error rate. The receiver contains an insequence delivery element, which delivers acceptable packets to higher layers.

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