Transmission power control apparatus and the radio base station

The present invention, in a wireless transmission system, to a transmission power control apparatus and the radio base station to properly maintain the target value of the transmission quality of the uplink link as a reference for transmission power control to reduce the resolution of the near-far problem. An object of the present invention is to provide the basic steps of the configuration and the channel control is changed, inexpensively, and in that the target value of accuracy higher above is maintained at a proper value. Therefore, transmission power control apparatus according to the present invention comprises a monitoring means for monitoring the transmission quality of the radio frequency signal coming from the terminal, of a predetermined width relative to the target value of the transmission quality should be maintained in the transmission power control difference in range, the moment determining means for discriminating whether the monitored transmission quality of the belongs, when the result of the determination is false, the transmission quality is monitored with these target values constructed and a target value updating means for updating the target value in a direction to reduce.