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    METHOD AND APPARATUS FOR RETRANSMISSION MANAGEMENT FOR RELIABLE HYBRID ARQ PROCESS
    121.
    发明专利
    METHOD AND APPARATUS FOR RETRANSMISSION MANAGEMENT FOR RELIABLE HYBRID ARQ PROCESS 未知

    公开(公告)号：CA2626758A1

    公开(公告)日：2007-05-03

    申请号：CA2626758

    申请日：2006-09-28

    Applicant: INTERDIGITAL TECH CORP

    Inventor： TERRY STEPHEN E ,  LIM JUNSUNG ,  CHANDRA ARTY ,  MENON NARAYAN P

    IPC: H04L1/18

    Abstract: A method for transmitting a packet from a transmitter to a receiver in a wireless communication system begins by building a packet by a transport format combination (TFC) selection process, and the packet is transmitted from the transmitter to the receiver. If the transmitter receives an indication that the packet was not successfully received at the receiver, the packet is retransmitted via a hybrid automatic repeat request (HARQ) procedure. If the HARQ procedure did not successfully transmit the packet, then the packet is retransmitted via a retransmission management (RM) procedure. If the RM procedure did not successfully transmit the packet, then the packet is discarded by the transmitter.

    122.
    发明专利
    未知

    公开(公告)号：NO20071295L

    公开(公告)日：2007-05-02

    申请号：NO20071295

    申请日：2007-03-09

    Applicant: INTERDIGITAL TECH CORP

    Inventor： TERRY STEPHEN E ,  LEVY JOSEPH S ,  CHANDRA ARTY ,  SHAHEEN KAMEL M ,  ZEIRA ELDAD ,  GRANDHI SUDHEER A

    IPC: H04L12/28 ,  H04L29/06 ,  H04W74/04

    Abstract: A method and system for controlling access to a medium in a wireless communication system. A superframe structure is defined in time domain to include a contention free period (CFP) which has at least one scheduled resource allocation (SRA), at least one management SRA (MSRA) and a contention period. An extended beacon (EB) including information about the SRA and MSRA is transmitted for. The MAC architecture reduces station battery consumption, supports higher throughput for non-real time (NRT) traffic and is more efficient for real time (RT) traffic while maintaining full compatibility.

    UN METODO Y UN APARATO PARA USO EN WLANS/WWANS PARA PROVEER INFORMACION DE POTENCIA INDIVIDUALIZADA
    124.
    发明专利
    UN METODO Y UN APARATO PARA USO EN WLANS/WWANS PARA PROVEER INFORMACION DE POTENCIA INDIVIDUALIZADA 未知

    公开(公告)号：AR047357A1

    公开(公告)日：2006-01-18

    申请号：ARP040104936

    申请日：2004-12-29

    Applicant: INTERDIGITAL TECH CORP

    Inventor： CHANDRA ARTY ,  HUNKELER TERESA JOANNE

    IPC: H04B7/005 ,  H04W52/28 ,  H04B7/00

    Abstract: Método y aparato empleados por componentes de red inalámbrica, como ser puntos de acceso (APs), para controlar nivel de potencia de transcripcion de unidades inalámbricas de transmision/recepcion (WTRUs) individuales, estableciendo un nivel de transmision de potencia en base a transmision previa y recibiendo estadísticas de transmision y recepcion, como ser relacion entre senal y ruido (SNR), tasa de error de bits (BER), tasa de error de trama (FER) y/o similares. La informacion de nivel de transmision de potencia es preferentemente comunicada a través de una cualquiera de una trama de confirmacion (ACK), de datos, listo para enviar (CTS) y pedido para enviar (RTS). Alternativamente, la informacion de control de potencia puede ser insertada en una trama de baliza o una trama de control individual designada específicamente para control de potencia. Las WTRUs preferentemente tiene sensores de nivel de batería y ajustan el nivel de control de potencia en respuesta a un nivel de batería sensado. En forma alternativa, los APs y las WTRUs pueden invertir sus roles y las WTRUs pueden proveer informacion de nivel de transmision de potencia a un AP para facilitar transmisiones por el AP.

    127.
    发明专利
    未知

    公开(公告)号：NO20051933L

    公开(公告)日：2005-04-20

    申请号：NO20051933

    申请日：2005-04-20

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KAZAKEVICH LEONID ,  CHITRAPU PRABHAKAR R ,  HUNKELER TERESA JOANNE ,  REDDY GAUTAM G ,  CHANDRA ARTY

    IPC: G01S5/00 ,  H04B7/26 ,  H04L12/28 ,  H04L12/56 ,  H04L29/02 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/04 ,  H04W88/06 ,  H04Q7/20

    Abstract: A wireless network provides controlled wireless communications with multi-mode wireless WTRUs. The wireless network has at least one base station having a transceiver operating in an infrastructure communication mode with multi mode WTRUs and a controller that transmits control signals via infrastructure communications with a WTRU that control peer-to-peer mode communications of that WTRU with other WTRUs. A WTRU has transceiver components configured for selective operation in an infrastructure communication mode with a network base station and in a peer-to-peer communication mode with other WTRUs. The WTRU also has a transceiver controller configured to selectively control peer-to-peer mode communications with other WTRUs based on communication signals received in infrastructure communications with a network base station. Preferably, the transceiver controller is configured to control the transceiver components to switch between infrastructure communication mode and peer-to-peer communication mode based on Quality of Service criteria.

    WIRELESS COMMUNICATION METHOD AND SYSTEM WITH CONTROLLED WTRU PEER-TO-PEER COMMUNICATIONS
    129.
    发明专利
    WIRELESS COMMUNICATION METHOD AND SYSTEM WITH CONTROLLED WTRU PEER-TO-PEER COMMUNICATIONS 未知

    公开(公告)号：CA2500656A1

    公开(公告)日：2004-04-15

    申请号：CA2500656

    申请日：2003-09-30

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KAZAKEVICH LEONID ,  HUNKELER TERESA ,  CHANDRA ARTY ,  CHITRAPU PRABHAKAR R ,  REDDY GAUTAM G

    IPC: H04B7/26 ,  G01S5/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/02 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/04 ,  H04W88/06 ,  H04Q7/00

    Abstract: A wireless network provides controlled wireless communications with multi-mo de wireless WTRUs (33, 37). The wireless network has at least one base station (25) having a transceiver operating in an infrastructure communication mode withmulti mode WTRUs and a controller that transmits control signals via infrastructure communications with a WTRU that control peer-to-peer mode communications (40) of that WTRU with other WTRUs. A WTRU has transceiver components configured for selective operation in an infrastructure communication mode with a network base station and in a peer-to-peer communication mode with other WTRUs. The WTRU also has a transceiver controller configured to selectively control peer-to-peer mode communication s with other WTRUs based on communication signals received in infrastructure communications with a network base station. Preferably, the transceiver controller is configured to control the transceiver components to switch between infrastructure communication mode and peer-to-peer communication mod e based on(duality of Service criteria).

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