发明申请
US20050136841A1 Method, apparatus and system for use in the transmission of wireless communications using multiple antennas 有权
用于使用多个天线的无线通信传输中使用的方法,装置和系统

  • 专利标题: Method, apparatus and system for use in the transmission of wireless communications using multiple antennas
  • 专利标题(中): 用于使用多个天线的无线通信传输中使用的方法,装置和系统
  • 申请号: US10744487
    申请日: 2003-12-23
  • 公开(公告)号: US20050136841A1
    公开(公告)日: 2005-06-23
  • 发明人: Colin Frank
  • 申请人: Colin Frank
  • 专利权人: Motorola, Inc.
  • 当前专利权人: Motorola, Inc.
  • 主分类号: H04B7/005
  • IPC分类号: H04B7/005 H04B7/06 H04B15/00 H04B1/10
Method, apparatus and system for use in the transmission of wireless communications using multiple antennas
摘要:
A method, apparatus and system are provided for use in optimizing signal-to-noise ratios at remote wireless devices. A method can receive a signal over a reverse link, determine an angular power profile of the reverse link signal, and determine an antenna weighting vector for the forward traffic signal based on the angular power profile. The determination of the weighting vector can include retrieving the vector from a weighting vector table. Some methods identify boundaries of angular spreads and utilize pre-calculate weighting vectors according to the boundaries. An apparatus can include an antenna array, a wireless receiver that receives reverse link signals, a detector that detects an angular power profile of the signals, a controller that determines a weighting vector and applies the weighting vector to the antenna array when transmitting. Some embodiments are dependent on whether the forward link incorporates a common pilot or per-user pilot signal.
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