发明名称 |
Fuzzy-logic spread-spectrum adaptive power control |
摘要 |
A fuzzy-logic spread-spectrum adaptive power control system comprising a base station and a plurality of remote units. The base station receives a spread-spectrum signal, and samples the despread spread-spectrum signal at a peak correlation time of the data channel, and at a non-peak correlation time of the data channel. This in turn generates a signal level and a noise level, respectively. A signal-to-noise ratio calculator generates a signal-to-noise ratio from the signal level and the noise level. A fuzzy-logic controller compares the signal-to-noise ratio to a set of predetermined thresholds, and using a state machine, generates a control signal which is thereby transmitted to the remote unit, indicating the amount by which to increase or decrease transmitted power. Each remote unit demodulates the control signal, and a transmitter controller adjusts a power level of the remote-unit spread-spectrum transmitter.
|
申请公布号 |
US5719898(A) |
申请公布日期 |
1998.02.17 |
申请号 |
US19950536749 |
申请日期 |
1995.09.29 |
申请人 |
GOLDEN BRIDGE TECHNOLOGY, INC. |
发明人 |
DAVIDOVICI, SORIN;KANTERAKIS, EMMANUEL |
分类号 |
H04B7/005;(IPC1-7):H04B15/00 |
主分类号 |
H04B7/005 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|