Patent ID: 7302232

Claim:
An adaptive antenna control method used for a radio communication system built comprising a plurality of radio base stations a plurality of terminal stations capable of communicating with the radio base stations, and an intensive control station connected to each radio base station and connected to an adaptive antenna of each radio base station, each adaptive antenna having a plurality of antenna elements, a distributor for generating signals to be input to the plurality of antenna elements by branching a signal of one system to be transmitted, and weighting circuits for respectively weighting transmission signals to the plurality of antenna elements, that the method comprising: for reception by each terminal station, estimating an interference wave power given by the transmission signal from each of the plurality of radio base stations, determining a weight vector in the adaptive antenna of each radio base station is to minimize a sum of square errors between reception signals and desired signals for all the radio base stations which simultaneously use the same communication channel, and sending a signal including the weight vector to the antenna of each radio base station by the intensive control station.