发明授权
US08873417B2 Techniques using differential precoding for highly correlated channels in wireless networks
有权
使用差分预编码技术在无线网络中高度相关的信道
- 专利标题： Techniques using differential precoding for highly correlated channels in wireless networks
- 专利标题（中）： 使用差分预编码技术在无线网络中高度相关的信道
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申请号： US13591613申请日： 2012-08-22
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公开(公告)号： US08873417B2公开(公告)日： 2014-10-28
- 发明人: Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
- 申请人： Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
- 申请人地址： US CA Santa Clara
- 专利权人： Intel Corporation
- 当前专利权人： Intel Corporation
- 当前专利权人地址： US CA Santa Clara
- 代理机构： Thorpe, North & Western, LLP
- 主分类号： G01R31/08
- IPC分类号： G01R31/08 ; H04B7/04 ; H04B7/06
摘要：
An embodiment of the present invention provides a method of using differential precoding feedback for correlated channels, comprising, transmitting by a mobile station (MS) as feedback an index angle for a differential discrete Fourier transform (DFT) codeword corresponding to a shift of a dominant beam represented by a base codeword, where the feedback corresponds to a precoding vector V(t)=Q({circumflex over (θ)}) for index angle {circumflex over (θ)}, where Q ( θ ^ ) = [ 1 ⅇ j 2 π m / 32 ⅇ j 4 π m / 32 ⅇ j 6 π m / 32 ] and m=−16 cos({circumflex over (θ)}).
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