Invention Grant
US08699968B2 Using multiple and a single feedback for UE uplink beamforming in soft handoff 有权
在软切换中使用多个和单个反馈用于UE上行链路波束成形

  • Patent Title: Using multiple and a single feedback for UE uplink beamforming in soft handoff
  • Patent Title (中): 在软切换中使用多个和单个反馈用于UE上行链路波束成形
  • Application No.: US13232646
    Application Date: 2011-09-14
  • Publication No.: US08699968B2
    Publication Date: 2014-04-15
  • Inventor: Haim Harel
  • Applicant: Haim Harel
  • Applicant Address: US CA Mountain View
  • Assignee: Google Inc.
  • Current Assignee: Google Inc.
  • Current Assignee Address: US CA Mountain View
  • Agency: Gottlieb, Rackman & Reisman, PC
  • Main IPC: H04B7/02
  • IPC: H04B7/02 H04W36/00
Using multiple and a single feedback for UE uplink beamforming in soft handoff
Abstract:
Embodiments of the present invention describe methods for increasing the amount of information available to a mobile transmit diversity transmitter during soft handoff. According to embodiments of the invention, a transmit diversity transmitter may determine substantially when it is in uplink communication with one base station and downlink communication with another base station. The mobile device may transmitting a diversity signal by controlling a value of a transmit diversity parameter based on feedback signals from the downlink base station, and controlling a power level in accordance with a standard protocol, e.g. combination of transmit power control feedbacks provided by the active base stations.
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