发明申请
- 专利标题: METHOD AND APPARATUS FOR MULITPLE INPUT MULTIPLE OUTPUT DISTRIBUTED ANTENNA ARRAYS
- 专利标题(中): 多输入输出多输出天线阵列的方法与装置
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申请号: US13246326申请日: 2011-09-27
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公开(公告)号: US20130077707A1公开(公告)日: 2013-03-28
- 发明人: Tommi Koivisto , Mihai Enescu , Timo Roman , Karol Schober
- 申请人: Tommi Koivisto , Mihai Enescu , Timo Roman , Karol Schober
- 申请人地址: JP Tokyo
- 专利权人: RENESAS MOBILE CORPORATION
- 当前专利权人: RENESAS MOBILE CORPORATION
- 当前专利权人地址: JP Tokyo
- 主分类号: H04L27/00
- IPC分类号: H04L27/00
摘要:
A method, apparatus and computer program product are provided for reporting low rank feedback information for each transmission point up to a maximum rank per transmission point. In this regard, a method includes determining a transmission rank and a precoding matrix for each of at least two transmission points of a plurality of transmission points. A method also includes determining a joint transmission rank based on at least two of the plurality of transmission points. A method also includes selecting a joint transmission precoding matrix based on the determined precoding matrix for each of the at least two transmission points and the determined joint transmission rank. The method further includes causing channel state information “CSI” to be transmitted to an access point, wherein the CSI describes the selected joint transmission precoding matrix.
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