发明授权
- 专利标题： Feedback of channel information in a closed loop beamforming wireless communication system
- 专利标题（中）： 闭环波束成形无线通信系统中信道信息的反馈
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申请号： US13729881申请日： 2012-12-28
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公开(公告)号： US08743994B2公开(公告)日： 2014-06-03
- 发明人: Matthew J. Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
- 申请人： Matthew J. Fischer , Joonsuk Kim , Christopher J. Hansen , Jason A. Trachewsky
- 申请人地址： US CA Irvine
- 专利权人： Broadcom Corporation
- 当前专利权人： Broadcom Corporation
- 当前专利权人地址： US CA Irvine
- 代理机构： Garlick & Markison
- 主分类号： H04W80/00
- IPC分类号： H04W80/00
摘要：
A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
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