Patent ID: 7266096

Claim:
A radio infrastructure apparatus comprising: a base station apparatus including a measuring section that measures a signal to interference ratio using an uplink signal made up of a data channel code-multiplexed with a control channel and a transmission power control section that generates a transmission power control signal from said signal to interference ratio and a target signal to interference ratio; and a control station including a first control section that controls gain factors corresponding to said data channel and said control channel based on base station information from each base station, a selection combination section that selects demodulated data that fulfills predetermined quality from demodulated data obtained in a plurality of base station apparatuses and outputs the selected demodulated data as received data, a second control section that controls said target signal to interference ratio based on a decision result of a comparison between an error rate determined from the output received data and a target error rate, and a correction section that corrects said target signal to interference ratio using said base station information and said gain factors.