发明申请
US20090296679A1 SYMBOL-LEVEL ADAPTATION METHOD, MEMORY, EQUALIZER AND RECEIVER FOR IMPLEMENTING THIS METHOD
有权
用于实施本方法的符号级适应方法,记忆,均衡器和接收器
- 专利标题: SYMBOL-LEVEL ADAPTATION METHOD, MEMORY, EQUALIZER AND RECEIVER FOR IMPLEMENTING THIS METHOD
- 专利标题(中): 用于实施本方法的符号级适应方法,记忆,均衡器和接收器
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申请号: US12299301申请日: 2007-02-08
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公开(公告)号: US20090296679A1公开(公告)日: 2009-12-03
- 发明人: Ahmet Bastug , Pierre Demaj
- 申请人: Ahmet Bastug , Pierre Demaj
- 优先权: EP06300156.4 20060222
- 国际申请: PCT/IB07/50411 WO 20070208
- 主分类号: H04B7/216
- IPC分类号: H04B7/216 ; H04B1/707
摘要:
A symbol-level adaptation method to adapt at least one coefficient of an equalizer, wherein the method includes a) determining if there exists a shortened pilot channelization code which has a spreading factor shorter than the spreading factor of a full pilot channelization code and which is, at the same time, still orthogonal to any other simultaneously active channelization codes, and, b) if there exists a shortened pilot channelization code, despreading the pilot channel using the shortened pilot channelization code to obtain a pilot symbol estimation, and c) adapting the value of the equalizer coefficient according to the error between the pilot symbol estimation obtained from step b) and a corresponding expected pilot symbol.