Patent ID: 6226316
Filing Date: 2001-05-01
Classification: H04B,H04W

Abstract:
A communication station for use in a cellular-communications network using spread-spectrum modulation wherein a second station transmits a specific spread-spectrum signal at an adjustable power level, the communication station receives signals including the specific spread-spectrum signal and the communication station includes a transmitter and an associated antenna for transmitting spread-spectrum signals to the second station, the communication station comprising:automatic gain control means for normalizing a power level associated with the received signals;means for despreading said normalized received signals with a unique code to produce a despread signal corresponding to the specific spread-spectrum signal;means for narrow band filtering said despread signal;power measurement means for multiplying the received signals with said filtered despread signal and measuring a power level associated with a resultant multiplied signal to obtain a received power level associated with said specific spread-spectrum signal; andmeans for generating a power command signal by comparing said received power level with a threshold level for controlling a variable-gain device in the second station for adjusting the transmit power level.