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专利名称：System and Method for Channel Information
Feedback in a Wireless CommunicationsSystem
发明人：Pengfei Xia,Yang Tang,Zhigang
Rong,Linhong Chen
申请号：US12722450申请日：20100311
公开号：US20100232525A1公开日：20100916
专利附图：
摘要：A system and method for channel information feedback in a wireless
communications system is provided. A method for communications device operationincludes receiving a pilot transmitted by a controller, computing a channel estimate for achannel between the controller and a communications device, the computing based onthe pilot, computing a channel correlation matrix for the channel based on the channelestimate, and transmitting a reduced rank representation of the channel correlationmatrix to the controller as a first feedback information. The method also includesadapting a first codebook based on the reduced rank representation of the channelcorrelation matrix, computing a representation of the channel using the adaptedcodebook, transmitting the representation of the channel as a second feedbackinformation, and receiving a transmission beamformed based on the first feedbackinformation and the second feedback information
申请人：Pengfei Xia,Yang Tang,Zhigang Rong,Linhong Chen
地址：San Diego CA US,San Diego CA US,San Diego CA US,Rolling Meadows IL US
国籍：US,US,US,US
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