中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

177 records (took 0.025 seconds)

    METHOD FOR SENDING AN ACKNOWLEDGEMENT TO AN INGRESS MESH POINT IN A MESH NETWORK AND A MEDIUM ACCESS CONTROL FRAME FORMAT
    91.
    发明专利
    METHOD FOR SENDING AN ACKNOWLEDGEMENT TO AN INGRESS MESH POINT IN A MESH NETWORK AND A MEDIUM ACCESS CONTROL FRAME FORMAT 未知

    公开(公告)号：SG158114A1

    公开(公告)日：2010-01-29

    申请号：SG2009081266

    申请日：2005-09-01

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LIVET CATHERINE ,  LU GUANG ,  ZUNIGA JUAN CARLOS

    IPC: H04L45/741 ,  H04W28/04 ,  H04W40/24 ,  H04W84/18

    Abstract: The present invention relates to a method for confirming the delivery of a data packet in a mesh network (100) by sending an acknowledgement to an ingress mesh point (104-4). A mesh network (100) comprises a plurality of mesh points (104) that are wirelessly linked together. A data packet sent by a station is received by an ingress mesh point (104-4). A MAC frame (200) is generated for transmission of the data packet and the frame is forwarded to an egress mesh point (104-2) in order to provide a service by the mesh network. The MAC frame (200) includes a field comprising an ingress mesh point address (206) and an egress mesh point (208) address. When the egress mesh point (104-2), receives a data packet successfully, the egress mesh point (104-2) or the intermediate mesh point (104-5) sends an ACK to the ingress mesh point (104-4) or preceding mesh point.

    METHOD FOR SENDING AN ACKNOWLEDGEMENT TO AN INGRESS MESH POINT IN A MESH NETWORK AND A MEDIUM ACCESS CONTROL FRAME FORMAT
    92.
    发明专利
    METHOD FOR SENDING AN ACKNOWLEDGEMENT TO AN INGRESS MESH POINT IN A MESH NETWORK AND A MEDIUM ACCESS CONTROL FRAME FORMAT 未知

    公开(公告)号：SG158113A1

    公开(公告)日：2010-01-29

    申请号：SG2009081241

    申请日：2005-09-01

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LIVET CATHERINE ,  LU GUANG ,  ZUNIGA JUAN CARLOS

    IPC: H04L45/741 ,  H04W28/04 ,  H04W40/24 ,  H04W84/18

    Abstract: The present invention relates to a method for confirming the delivery of a data packet in a mesh network (100) by sending an acknowledgement to an ingress mesh point (104-4). A mesh network (100) comprises a plurality of mesh points (104) that are wirelessly linked together. A data packet sent by a station is received by an ingress mesh point (104-4). A MAC frame (200) is generated for transmission of the data packet and the frame is forwarded to an egress mesh point (104-2) in order to provide a service by the mesh network. The MAC frame (200) includes a field comprising an ingress mesh point address (206) and an egress mesh point (208) address. When the egress mesh point (104-2), receives a data packet successfully, the egress mesh point (104-2) or the intermediate mesh point (104-5) sends an ACK to the ingress mesh point (104-4) or preceding mesh point.

    ENVIO Y REDUCCION DE SEÑALIZACION DE RETROALIMENTACION DE ENLACE ASCENDENTE PARA TRANSMISION DE DATOS MBMS.
    95.
    发明专利
    ENVIO Y REDUCCION DE SEÑALIZACION DE RETROALIMENTACION DE ENLACE ASCENDENTE PARA TRANSMISION DE DATOS MBMS. 未知

    公开(公告)号：MX2009001789A

    公开(公告)日：2009-03-20

    申请号：MX2009001789

    申请日：2007-08-20

    Applicant: INTERDIGITAL TECH CORP

    Inventor： GRANDHI SUDHEER A ,  ZHANG GUODONG ,  MARINIER PAUL ,  LU GUANG ,  CAVE CHRISTOPHER ,  CHANDRA ARTY

    IPC: H04W4/08 ,  H04W4/06 ,  H04W74/08

    Abstract: La presente invención se refiere a un método y sistema para enviar y reducir la señalización de retroalimentación de enlace ascendente mediante una unidad de transmisión/recepción inalámbrica (WTRU) relacionada a la transmisión de datos del servicio de multidifusión de radiodifusión multimedia (MBMS) sobre un canal de acceso de paquete de enlace descendente a alta velocidad (HSDPA). Un nodo B puede pre-asignar una región de frecuencia de tiempo o un código de canalización común para la retroalimentación. Se fija un criterio de activación para reportar un indicador de calidad de canal (CQI) y las WTRUs envían un CQI a un Nodo B solamente si el criterio de activación se satisface. El criterio de activación puede ser un valor de CQI operador de corriente en el Nodo B, o se basa en las estadísticas de recepción de bloque de transporte erróneo, o un período de tiempo predeterminado. Un método de reducción de retroalimentación relacionado a ACK/NACK incluye la WTRU que envía una indicación de un número promedio de transmisiones necesarias para decodificar exitosamente los datos en lugar de enviar un ACK/NACK por cada intervalo de transmisión.

    96.
    发明专利
    未知

    公开(公告)号：AT414368T

    公开(公告)日：2008-11-15

    申请号：AT05792704

    申请日：2005-09-01

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LIVET CATHERINE ,  LU GUANG ,  ZUNIGA JUAN

    IPC: H04L12/56 ,  H04L45/741 ,  H04W28/04 ,  H04W40/24 ,  H04W84/18

    Abstract: The present invention relates to a method for confirming the delivery of a data packet in a mesh network by sending an acknowledgement (ACK) to an ingress mesh point (IMP). A mesh network comprises a plurality of mesh points that are wirelessly linked together. A data packet sent by a station (STA) is received by an IMP. A MAC frame is generated for transmission of the data packet and the frame is forwarded to an egress mesh point (EMP) in order to provide a service by the mesh network. The MAC frame includes a field comprising an IMP address and an EMP address. When the EMP, (or optionally an intermediate mesh point), receives a data packet successfully, the EMP or the intermediate mesh point sends an ACK to the IMP or preceding mesh point.

    97.
    发明专利
    未知

    公开(公告)号：AT395793T

    公开(公告)日：2008-05-15

    申请号：AT04717380

    申请日：2004-03-04

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LIVET CATHERINE ,  LU GUANG ,  RAHMAN SHAMIM ,  ZAKI MAGED

    IPC: H04B1/16 ,  H04M1/725 ,  H04M1/73 ,  H04W24/10 ,  H04W52/02

    Abstract: A method for congestion control in the uplink of a wireless communication system having a wireless transmit/receive unit (WTRU) and a radio network controller (RNC) begins by receiving an interference report for each user. The average noise rise for each user calculated and congestion relieving measures are implemented based upon the average noise rise and the WTRU battery level. A method for congestion control in the downlink of a wireless communication system having a WTRU and a RNC begins by receiving a transmission power report for each user. The transmission power for each user is calculated, and congestion relieving measures are implemented based upon the average transmission power and the WTRU battery level.

    MULTI-CELL COORDINATION FOR MULTIMEDIA BROADCAST MULTICAST SERVICES IN A WIRELESS COMMUNICATION SYSTEM
    98.
    发明专利
    MULTI-CELL COORDINATION FOR MULTIMEDIA BROADCAST MULTICAST SERVICES IN A WIRELESS COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2661314A1

    公开(公告)日：2008-02-28

    申请号：CA2661314

    申请日：2007-08-09

    Applicant: INTERDIGITAL TECH CORP

    Inventor： ZHANG GUODONG ,  CHANDRA ARTY ,  LU GUANG

    IPC: H04W4/06

    Abstract: The present invention is related to a method and system for multi-cell co ordination for multimedia broadcast multicast services (MBMS) in a wireless communication system. An MBMS multi-cell coordination unit is provided to co ordinate a plurality of evolved Node-Bs (eNodeBs) for transmission of MBMS d ata synchronously in multiple cells of the same single frequency network (SF N). The MBMS multi-cell coordination unit may be located in an access gatewa y or in an eNodeB. An MBMS multi-cell scheduling scheme may be preconfigured for the eNodeBs for synchronization. Alternatively, the eNodeBs may be sync hronized dynamically.

    99.
    发明专利
    未知

    公开(公告)号：NO20075502L

    公开(公告)日：2007-12-20

    申请号：NO20075502

    申请日：2007-10-31

    Applicant: INTERDIGITAL TECH CORP

    Inventor： LIVET CATHERINE ,  LU GUANG ,  ZAKI MAGED

    IPC: H04L12/56 ,  H04J99/00 ,  H04L29/10

    Abstract: A method and system for performing dynamic link selection (DLS) between transmit/receive units (TRUs). A first TRU determines whether a second TRU has multiple interfaces with a DLS capability. If the second TRU has multiple interfaces with the DLS capability, the first TRU sends a packet to the second TRU through a selected link. The first TRU then receives a report from the second TRU and evaluates quality of the link based on the report. The first TRU selects a link for a new packet in accordance with a predetermined criteria and the quality of the link. If the second TRU does not have multiple interfaces with the DLS capability, the first TRU periodically sends probe packets to the second TRU via all available links. The second TRU sends response packets and the first TRU evaluates the quality of link based on statistics of the response packets.

Patent Agency Ranking