- 专利标题: RADIO COMMUNICATION DEVICE AND RESPONSE SIGNAL DIFFUSION METHOD
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申请号: US13571207申请日: 2012-08-09
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公开(公告)号: US20120300736A1公开(公告)日: 2012-11-29
- 发明人: Sadaki Futagi , Seigo Nakao , Daichi Imamura
- 申请人: Sadaki Futagi , Seigo Nakao , Daichi Imamura
- 申请人地址: JP Osaka
- 专利权人: PANASONIC CORPORATION
- 当前专利权人: PANASONIC CORPORATION
- 当前专利权人地址: JP Osaka
- 优先权: JP2007-211102 20070813
- 主分类号: H04W72/00
- IPC分类号: H04W72/00
摘要:
Provided is a radio communication device which can suppress inter-code interference between an ACK/NACK signal and a CQI signal which are code-multiplexed. A diffusion unit (214) diffuses the ACK/NACK signal inputted from a judgment unit (208) by using a ZC sequence. A diffusion unit (219) diffuses the CQI signal by using a cyclic shift ZC sequence. By using a Walsh sequence, a diffusion unit (216) further diffuses the ACK/NACK signal which has been diffused by using the ZC sequence. A control unit (209) controls the diffusion unit (214), the diffusion unit (216), and the diffusion unit (219) so that the minimum value of the difference between the CQI signals from a plurality of mobile stations and a cyclic shift amount of the ACK/NACK signal is not smaller than the minimum value of the difference between the cyclic shift amounts of the ACK/NACK signals from the plurality of mobile stations.