利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

252 条记录 (耗时 0.027 秒)

    PUNCTURING SIGNALING CHANNEL FOR A WIRELESS COMMUNICATION SYSTEM
    1.
    发明公开
    PUNCTURING SIGNALING CHANNEL FOR A WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：EP4033684A1

    公开(公告)日：2022-07-27

    申请号：EP22161684.0

    申请日：2006-10-26

    申请人： QUALCOMM Incorporated

    发明人： GOROKHOV, Alexei ,  DONG, Min

    IPC分类号： H04L1/16 ,  H04L27/26 ,  H04L5/02 ,  H04L5/00 ,  H04B1/7103

    摘要： A signaling channel that punctures traffic channels is used to send signaling, e.g., acknowledgments (ACKs). To send signaling, resources for the signaling channel are determined, e.g., based on a frequency hopping pattern. Signaling is spread with a spreading code (e.g., a Walsh code) to generate spread signaling, which is mapped to the resources for the signaling channel. Each resource may be partitioned into multiple clusters. A signaling message may be mapped to different clusters to achieve diversity. Traffic data may also be mapped to other resources for a traffic channel assigned for use. Traffic data mapped to the other resources for the signaling channel is punctured. The mapped signaling and traffic data are further processed (e.g., for OFDM or SC-FDMA) and transmitted.

    SIDELINK-CENTRIC SUBFRAME FOR WIRELESS COMMUNICATION
    3.
    发明公开
    SIDELINK-CENTRIC SUBFRAME FOR WIRELESS COMMUNICATION 审中-公开

    公开(公告)号：EP3466176A1

    公开(公告)日：2019-04-10

    申请号：EP17729342.0

    申请日：2017-06-02

    申请人： QUALCOMM Incorporated

    发明人： GUPTA, Piyush ,  LI, Chong ,  SORIAGA, Joseph Binamira ,  JI, Tingfang ,  PATIL, Shailesh ,  JIANG, Jing ,  ZENG, Wei ,  GOROKHOV, Alexei ,  LI, Junyi

    IPC分类号： H04W72/12 ,  H04W74/04

    摘要： An apparatus may receive, from a scheduling entity, sidelink grant information in a downlink control channel. After receiving the grant information in the downlink control channel, the apparatus may transmit a request-to-send (RTS) signal comprising an indication of a requested duration of time to reserve a sidelink channel for sidelink data. If the sidelink channel is available for the requested duration of time, the apparatus may receive a clear-to-send (CTS) signal configured to indicate an availability of the sidelink channel for the requested duration of time. Subsequently, the apparatus may communicate, with another apparatus different from the scheduling entity, the sidelink data using the sidelink channel during the requested duration of time. Afterwards, the apparatus may communicate acknowledgment information corresponding to the communication of the sidelink signal with the other apparatus. Various additional and alternative aspects are described herein.

    ON-DEMAND REVERSE-LINK PILOT TRANSMISSION
    4.
    发明授权
    ON-DEMAND REVERSE-LINK PILOT TRANSMISSION 有权
    按需逆向链路导频传输

    公开(公告)号：EP1884093B1

    公开(公告)日：2018-03-07

    申请号：EP05773494.9

    申请日：2005-07-19

    申请人： QUALCOMM INCORPORATED

    发明人： SUTIVONG, Arak c/o Qualcomm Incorporated ,  AGRAWAL, Avneesh ,  GOROKHOV, Alexei ,  TEAGUE, Edward, Harrison

    IPC分类号： H04L25/02 ,  H04W72/12

    CPC分类号： H04L25/0202 ,  H04W72/1226 ,  H04W72/1289

    摘要： Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate.

    BACKHAUL SIGNALING FOR INTERFERENCE AVOIDANCE
    8.
    发明授权
    BACKHAUL SIGNALING FOR INTERFERENCE AVOIDANCE 有权
    BACKHAUL-SIGNALISIERUNG ZUR VERMEIDUNG VON INTERFERENZEN

    公开(公告)号：EP2238779B1

    公开(公告)日：2015-10-28

    申请号：EP08872061.0

    申请日：2008-11-10

    申请人： QUALCOMM Incorporated

    发明人： KHANDEKAR, Aamod ,  AGRAWAL, Avneesh ,  SAMPATH, Ashwin ,  HORN, Gavin B. ,  GOROKHOV, Alexei ,  BHUSHAN, Naga ,  JI, Tingfang

    IPC分类号： H04W52/24 ,  H04W16/14 ,  H04W16/10 ,  H04W16/24 ,  H04W72/02 ,  H04W88/08 ,  H04W48/08

    CPC分类号： H04W72/082 ,  H04W52/243 ,  H04W72/0426 ,  H04W84/045 ,  H04W92/20 ,  Y02D70/00

    摘要： Providing for interference reduction and/or avoidance utilizing backhaul signaling between wireless access points (APs) of a wireless access network (AN) is described herein. By way of example, an interference avoidance request (IAR) can be issued by an AP to reduce signal interference on forward link (FL) and/or downlink (DL) transmissions by neighboring APs. The IAR can be routed via a backhaul network and/or over-the-air via access terminals (ATs) coupled with the AP or one or more interfering APs. Upon receiving the IAR, an interfering AP can determine reduced transmit power levels for FL and/or RL transmissions and respond to the IAR. The response can include reduced power levels and can be sent via the backhaul network or OTA. By employing the backhaul network in full or in part, interference avoidance can be conducted even for semi-planned or unplanned heterogeneous networks coupled by the backhaul.

    摘要翻译： 本文描述了在无线接入网络（AN）的无线接入点（AP）之间利用回程信令来提供干扰减少和/或避免。 作为示例，AP可以发出干扰避免请求（IAR），以减少相邻AP在前向链路（FL）和/或下行链路（DL）传输上的信号干扰。 IAR可以经由回程网络和/或通过与AP或一个或多个干扰AP耦合的接入终端（AT）进行路由。 在接收到IAR时，干扰AP可以确定FL和/或RL传输的降低的发射功率电平并响应IAR。 响应可以包括降低的功率电平，并且可以通过回程网络或OTA发送。 通过全面或部分采用回程网络，即使对于通过回程耦合的半计划或计划外异构网络，也可以进行干扰回避。