发明授权
US09001874B2 Feedback method, mobile terminal apparatus and radio base station apparatus
有权
反馈方法,移动终端装置和无线基站装置
- 专利标题: Feedback method, mobile terminal apparatus and radio base station apparatus
- 专利标题(中): 反馈方法,移动终端装置和无线基站装置
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申请号: US13877174申请日: 2011-10-03
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公开(公告)号: US09001874B2公开(公告)日: 2015-04-07
- 发明人: Satoshi Nagata , Yuichi Kakishima , Hidekazu Taoka , Katsutoshi Kusume
- 申请人: Satoshi Nagata , Yuichi Kakishima , Hidekazu Taoka , Katsutoshi Kusume
- 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: JP2010-225013 20101004
- 国际申请: PCT/JP2011/072756 WO 20111003
- 国际公布: WO2012/046688 WO 20120412
- 主分类号: H04B1/00
- IPC分类号: H04B1/00 ; H04B7/24 ; H04B7/04 ; H04L25/03 ; H04B7/06 ; H04W16/28 ; H04W24/10
摘要:
The present invention makes it possible to generate precoding weights reliably, even in downlink MIMO transmission using a plurality of transmitting antennas. The present invention includes: a first feedback information selection section (109) that, in a mode to include a PTI in a PUCCH and feed back the PTI to a radio base station apparatus for downlink MIMO transmission using a plurality of transmitting antennas, selects the same RI as the last RI that was fed back, when the value of the PTI is changed from 0 to 1; a multiplexer (115) that multiplexes the RI and the PTI after the change on a subframe; and a transmission section that transmits the multiplex signal to the radio base station apparatus by the PUCCH.
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