发明授权
- 专利标题： Spread-spectrum signal receiver apparatus and interference cancellation apparatus
- 专利标题（中）： 扩频信号接收装置和干扰消除装置
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申请号： US10033196申请日： 2001-12-28
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公开(公告)号： US06920173B2公开(公告)日： 2005-07-19
- 发明人: Tadashi Nakamura , Tetsuhiro Futami
- 申请人： Tadashi Nakamura , Tetsuhiro Futami
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Katten Muchin Zavis Rosenman
- 优先权： JP2001-087743 20010326
- 主分类号： H04B1/707
- IPC分类号： H04B1/707 ; H04B1/10 ; H04B1/7107 ; H04J13/00 ; H04K1/00 ; H04B1/69 ; H04B1/713
摘要：
In a spread-spectrum signal receiver apparatus for receiving a spread-spectrum signal and demodulating transmit data from the signal, a receiver receives a spread-spectrum signal that has been spread by a spreading code comprising a combination of a first code that varies depending upon spreading factor and a second code that differs for every user, an interference canceller produces a replica of an interference signal from the receive signal using a despreading code comprising a combination of the first code, which is regarded as a code decided based upon a minimum spreading factor, and the second code that differs for every user, and a receive modulator demodulates transmit data from a signal obtained by subtracting the replica from the receive signal.