发明授权
US09312984B2 Radio communication system, radio base station apparatus, user terminal and radio communication method
有权
无线通信系统，无线基站装置，用户终端和无线通信方式
- 专利标题： Radio communication system, radio base station apparatus, user terminal and radio communication method
- 专利标题（中）： 无线通信系统，无线基站装置，用户终端和无线通信方式
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申请号： US14356174申请日： 2012-11-01
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公开(公告)号： US09312984B2公开(公告)日： 2016-04-12
- 发明人: Satoshi Nagata , Xiang Yun , Xiaoming She , Lan Chen
- 申请人： NTT DOCOMO, INC.
- 申请人地址： JP Tokyo
- 专利权人： NTT DOCOMO, INC.
- 当前专利权人： NTT DOCOMO, INC.
- 当前专利权人地址： JP Tokyo
- 代理机构： Osha Liang LLP
- 优先权： JP2011-243023 20111107
- 国际申请： PCT/JP2012/078340 WO 20121101
- 国际公布： WO2013/069537 WO 20130516
- 主分类号： H04L1/00
- IPC分类号： H04L1/00 ; H04W4/00 ; H04L5/00 ; H04B7/02 ; H04B7/06 ; H04L1/16
摘要：
To reduce overhead of CSI feedback without decreasing throughput in applying CoMP transmission, a radio communication method of the invention is characterized in that a radio base station apparatus determines so that content of CSI to transmit to a serving cell to perform CoMP transmission as feedback is different from content of CSI to transmit to a coordinated cell as feedback, and notifies a user terminal of the content of CSI, and that the user terminal generates feedback information based on the content of CSI notified from the radio base station apparatus, and transmits the feedback information to radio base station apparatuses of cells that perform Coordinated Multi-Point transmission.
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