RADIO COMMUNICATION APPARATUS AND TRANSMISSION RATE CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To properly control a base station transmission power to a mobile station without affected by an environment and a transmission rate of the mobile station. SOLUTION: The ratio communication terminal measures reception quality and reports the measurement result to the base station, and the base station apparatus switches the transmission rate on the basis of the report result of the reception quality. In this way, the transmission rate is switched starting at the point of time at which the reception quality of the communication terminal deteriorates. Furthermore, the transmission rate is switched so that the amount of interference with others stays within the allowable range according to the channel condition between the communication terminal and base station apparatus.