Patent ID: 6628732
Filing Date: 2003-09-30
Classification: H04W

Abstract:
A method by which a mobile station controls a transmission power of a base station, the method comprising:setting a threshold value for the mobile station that represents a signal power level at which a frequency converter at the mobile station to which a signal is applied would operate in a saturation region; calculating an average power of a signal received by the mobile station's antenna; attenuating a power level of the received signal, when the calculated average power of the received signal is lower than the threshold value, and amplifying the power level of the received signal by the mobile station if the calculated average power of the received signal is higher than the threshold value; increasing the time period for calculating an average received power of the received signal when the calculated average received power approaches the threshold value; calculating a power level of a received channel based on the calculated average received power and despread received signals; and generating and transmitting a first control signal based on the power level of the received channel, such that when the power level of the received channel is lower than the threshold level the first control signal causes the base station to increase its transmission power, and when the power level of the received channel is higher than the threshold level the first control signal causes the base station to decrease its transmission power.