发明授权
US08724607B2 Method and apparatus for downlink transmission based on MIMO precoding in wireless communication system employing distributed antenna systems
有权
基于采用分布式天线系统的无线通信系统中基于MIMO预编码的下行链路传输的方法和装置
- 专利标题： Method and apparatus for downlink transmission based on MIMO precoding in wireless communication system employing distributed antenna systems
- 专利标题（中）： 基于采用分布式天线系统的无线通信系统中基于MIMO预编码的下行链路传输的方法和装置
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申请号： US13371935申请日： 2012-02-13
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公开(公告)号： US08724607B2公开(公告)日： 2014-05-13
- 发明人: Jin Kyu Han , Cheol Mun , Sung Tae Kim , Youn Sun Kim , Jong Kwan Yook
- 申请人： Jin Kyu Han , Cheol Mun , Sung Tae Kim , Youn Sun Kim , Jong Kwan Yook
- 申请人地址： KR KR
- 专利权人： Samsung Electronics Co., Ltd,Industry-Academic Cooperation Foundation, Yonsei University
- 当前专利权人： Samsung Electronics Co., Ltd,Industry-Academic Cooperation Foundation, Yonsei University
- 当前专利权人地址： KR KR
- 代理机构： The Farrell Law Firm, P.C.
- 优先权： KR10-2011-0012217 20110211
- 主分类号： H04B7/216
- IPC分类号： H04B7/216
摘要：
A transmission method and apparatus utilizing Multiple-Input and Multiple-Output (MIMO) precoding based on Distributed Antenna Systems (DASs) are provided. The transmission method includes determining active antenna ports, for a User Equipment (UE) having multiple receive antennas, from among a plurality of Distributed Antenna Ports (DAPs) evenly placed in a service area; assigning a Multiple-Input and Multiple-Output (MIMO) mode to the UE and notifying the UE of the MIMO mode assignment; determining a signal precoding vector on a basis of feedback information for the MIMO mode received from the UE; and precoding a signal using the signal precoding vector and transmitting the precoded signal through the active antenna ports.