CDMA wireless transmitter-receiver system and transmission power control method thereof

摘要

A control for varying a maximum transmission power of a transmitter according to a distance between a base station and a mobile station can reduce deterioration of a user capacity to a minimum. In the mobile station (316), a distance from the mobile station (316) to a base station is estimated (S701). The estimated distance information is transmitted to be based station (S702). The base station decides a maximum transmission power of transmission signal transmitted from the mobile station (316) on the basis of the distance information received (S703). The decided maximum transmission power information is transmitted to be mobile station (316) (S704). The mobile station (316) designates a maximum amplification amount to the transmission amplifier (304) for amplifying the transmission signal on the basis of the maximum transmission power information transmitted from the base station (S705).