发明授权
- 专利标题: Inter-carrier interference removal device and reception device using the same
- 专利标题(中): 载波间干扰去除装置及使用其的接收装置
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申请号: US12090735申请日: 2006-10-20
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公开(公告)号: US07991089B2公开(公告)日: 2011-08-02
- 发明人: Hideki Nakahara , Yoshinobu Matsumura , Mikihiro Ouchi , Tomohiko Taniguchi
- 申请人: Hideki Nakahara , Yoshinobu Matsumura , Mikihiro Ouchi , Tomohiko Taniguchi
- 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
- 代理机构: Wenderoth, Lind & Ponack, L.L.P.
- 优先权: JP2005-307820 20051021; JP2005-362511 20051215
- 国际申请: PCT/JP2006/320962 WO 20061020
- 国际公布: WO2007/046503 WO 20070426
- 主分类号: H04B7/10
- IPC分类号: H04B7/10
摘要:
An inter-carrier interface removal device can improve estimation accuracy of inter-carrier interference caused by Doppler shift in a received multi-carrier signal moving at a high speed, and a reception characteristic of the multi-carrier signal after removing the inter-carrier interference. The inter-carrier interference removal device includes a channel estimation unit estimating a channel frequency characteristic according to a carrier signal, an equalization unit equalizing the carrier signal with the channel frequency characteristic and outputs tentative carrier data, a reliability value calculation unit calculating a reliability value according to the channel frequency characteristic, a weighting unit weighting the tentative carrier data with the reliability value, an ICI component estimation unit estimating an ICI component according to the weighted tentative carrier data and the estimated channel frequency characteristic, and an ICI removal calculation unit removing the ICI component from the carrier signal.