Adaptive power control and mobile station for use in a cellular communications network

The present invention is directed to a mobile station for performing adaptive-power control of a spread-spectrum transmitter of the mobile station operating in a cellular-communications network using spread-spectrum modulation, wherein a base station transmits a first spread spectrum channel and a second spread-spectrum channel different than the first spread spectrum channel, each mobile station comprising: means for acquiring and decoding the first spread spectrum channel;means for detecting a received power level of the first spread spectrum channel;means for detecting a received power level of the first spread spectrum channel;means for decoding a word of the second spread spectrum channel as a word value;means for generating a comparison signal by comparing the received power level to said word value;means for transmitting a transmitter spread-spectrum signal;an antenna; andvariable-gain means responsive to said comparison signal for adjusting a transmitter-power level of the transmitter spread-spectrum signal from said transmitter.