发明名称 |
Spread spectrum communication system and transmission power control method therefor |
摘要 |
In a spread spectrum communication system, one (Wn) of a series of orthogonal codes for spectrum spreading is assigned to signal-to-noise ratio measurement in a terminal. On the basis of a noise signal detected by de-spreading a signal received from an antenna with the above described orthogonal code Wn and a pilot signal, each terminal derives a signal-to-noise ratio. Each terminal transmits the signal-to-noise ratio to the base station as a power control signal. On the basis of signal-to-noise information received from each terminal as the power control signal, the base station controls signal transmission power for each terminal.
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申请公布号 |
US2002028692(A1) |
申请公布日期 |
2002.03.07 |
申请号 |
US20010988137 |
申请日期 |
2001.11.19 |
申请人 |
YANO TAKASHI;DOI NOBUKAZU |
发明人 |
YANO TAKASHI;DOI NOBUKAZU |
分类号 |
H04B1/707;H04B7/005;(IPC1-7):H04B7/00 |
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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