发明授权
- 专利标题： Multi-user demodulator for CDMA spectrum spreading communication
- 专利标题（中）： 用于CDMA频谱扩展通信的多用户解调器
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申请号： US781631申请日： 1997-01-10
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公开(公告)号： US5956333A公开(公告)日： 1999-09-21
- 发明人: Changming Zhou , Guoliang Shou , Kenzo Urabe , Tetsuhiko Miyatani
- 申请人： Changming Zhou , Guoliang Shou , Kenzo Urabe , Tetsuhiko Miyatani
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Yozan Inc.,Kokusai Electric
- 当前专利权人： Yozan Inc.,Kokusai Electric
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX8-021869 19960112
- 主分类号： H03H17/00
- IPC分类号： H03H17/00 ; H04B1/7107 ; H04J13/00 ; H04K1/00
摘要：
A multi-user demodulator eliminates synchronization problems without interference cancellation. A threshold process is applied to a despread signal to extract each user's signal. The extracted signals are respread, and those respread signals other than a specifier user's signal are subtracted from the received signal to ideally extract the specific user's signal.
公开/授权文献
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