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    • 5. 发明申请
    • ENHANCED UPLINK BEAM SELECTION FOR MASSIVE MIMO SYSTEM
    • 用于大规模MIMO系统的增强型上行波束选择
    • WO2017214969A1
    • 2017-12-21
    • PCT/CN2016/086153
    • 2016-06-17
    • NOKIA TECHNOLOGIES OYNOKIA TECHNOLOGIES (BEIJING) CO., LTD.
    • ZHANG, YiMIAO, DeshanZHANG, Yuantao
    • H04W16/28
    • A radio network sends downlink signaling to a user equipment (UE) that triggers an enhanced uplink beam selection protocol, based on quality of the UE's uplink signaling the network receives according to a basic uplink beam selection protocol. In response the UE transmits pre-defined signaling such as uplink beam references signals (U-BRS) with uplink beams according to the downlink signaling. The network measures and selects one or more of those uplink beams for the UE to use for sending uplink data, and notifies this selection to the UE. In various embodiments the basic uplink beam selection protocol is based on uplink-downlink reciprocity, the downlink triggering signaling is dynamic and further selects a subset of uplink beams, and multiple UEs can be triggered in common signaling where blind decoding by the UEs is enabled via a scrambling ID for this enhanced uplink beam selection protocol purpose.
    • 根据基于上行链路波束选择协议的网络接收的UE的上行链路信令的质量,无线电网络向触发增强的上行链路波束选择协议的用户设备(UE)发送下行链路信令。 作为响应,UE根据下行链路信令传送具有上行链路波束的预定信令,例如上行链路波束参考信号(U-BRS)。 网络测量并选择一个或多个这些上行链路波束供UE用于发送上行链路数据,并将该选择通知给UE。 在各种实施例中,基本上行链路波束选择协议基于上行链路 - 下行链路互惠性,下行链路触发信令是动态的并且进一步选择上行链路波束的子集,并且多个UE可以在公共信令中被触发,其中UE经由盲解码被启用 用于这种增强的上行链路波束选择协议目的的扰码ID。