Pulse or digital communications – Repeaters – Testing
Patent
1995-05-17
1997-05-20
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
379 59, 379 63, 455 331, 455 541, H04B 169, H04B 176, H04Q 722
Patent
active
056319215
ABSTRACT:
An apparatus for adaptive-power control of a spread-spectrum transmitter of a mobile station operating in a cellular-communications network using spread-spectrum modulation. A base station transmits a first spread-spectrum signal. A mobile station has an automatic-gain-control circuit for generating an AGC-output signal, from a received signal. The received signal includes the first spread-spectrum signal and an interfering signal. The mobile station also has a correlator for despreading the AGC-output signal, a power-measurement circuit responsive to processing the received signal with the despread AGC-output signal for generating a received-power level, a comparator coupled to the power-measurement circuit for generating a comparison signal by comparing the received-power level to a threshold level, a transmitter for transmitting a second spread-spectrum signal, an antenna, and a variable-gain device responsive to the comparison signal for adjusting a transmitter-power level of the second spread-spectrum signal.
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Chin Stephen
Gluck Jeffrey W.
InterDigital Technology Corp.
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