发明名称 |
Spread-spectrum signal receiver apparatus and interference cancellation apparatus |
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.
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申请公布号 |
US2002136278(A1) |
申请公布日期 |
2002.09.26 |
申请号 |
US20010033196 |
申请日期 |
2001.12.28 |
申请人 |
NAKAMURA TADASHI;FUTAMI TETSUHIRO |
发明人 |
NAKAMURA TADASHI;FUTAMI TETSUHIRO |
分类号 |
H04B1/707;H04B1/10;H04B1/69;H04B1/713;H04J13/04;H04K1/00;(IPC1-7):H04K1/00 |
主分类号 |
H04B1/707 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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