发明申请
US20120269278A1 DOWNLINK MULTIPLE INPUT MULTIPLE OUTPUT ENHANCEMENTS FOR SINGLE-CELL WITH REMOTE RADIO HEADS
有权
下行多路输入多路输出增强型单电源与远程无线电头
- 专利标题： DOWNLINK MULTIPLE INPUT MULTIPLE OUTPUT ENHANCEMENTS FOR SINGLE-CELL WITH REMOTE RADIO HEADS
- 专利标题（中）： 下行多路输入多路输出增强型单电源与远程无线电头
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申请号： US13451718申请日： 2012-04-20
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公开(公告)号： US20120269278A1公开(公告)日： 2012-10-25
- 发明人: Eko Onggosanusi , Vikram Chandrasekhar , Runhua Chen
- 申请人： Eko Onggosanusi , Vikram Chandrasekhar , Runhua Chen
- 申请人地址： US TX Dallas
- 专利权人： TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人： TEXAS INSTRUMENTS INCORPORATED
- 当前专利权人地址： US TX Dallas
- 主分类号： H04B7/02
- IPC分类号： H04B7/02
摘要：
A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the NT-by-N precoding matrix where N is the number of said layers and NT is the number of transmit antenna elements and transmits the precoded layers of data stream to the user equipment via the selected geographically separated antennas. The base station signals the subset of the plurality of geographically separated antennas via higher layer Radio Resource Control or via a down link grant mechanism. The base station optionally does not signal the subset of the plurality of geographically separated antennas to the corresponding mobile user equipment.