Invention Grant
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
- Patent Title: Techniques using differential precoding for highly correlated channels in wireless networks
- Patent Title (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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Application No.: US13591613Application Date: 2012-08-22
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Publication No.: US08873417B2Publication Date: 2014-10-28
- Inventor: Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
- Applicant: Xiaogang Chen , Yuan Zhu , Qinghua Li , Xintian E. Lin , Yang-Seok Choi
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Thorpe, North & Western, LLP
- Main IPC: G01R31/08
- IPC: G01R31/08 ; H04B7/04 ; H04B7/06
Abstract:
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)}).
Public/Granted literature
- US20130223495A1 TECHNIQUES USING DIFFERENTIAL PRECODING FOR HIGHLY CORRELATED CHANNELS IN WIRELESS NETWORKS Public/Granted day:2013-08-29
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