Wireless communication system and a radio communication method and a base station apparatus

By exchanging information between a plurality of base stations, in the allocation of radio resources for each base station adaptively changed to reduce the deterioration of signal quality plurality of base stations due to interference of the signal transmission technique, a base reducing the data amount of information to be exchanged between the stations, to distribute the load on the base station which controls a control. Or terminal is located in the cell center, do judgment located at the cell boundary, and communication for terminals located in the cell center, communication for terminals located at the cell boundary, and to perform at different times. And, for the cell boundary of the base station apparatus adjacent to, and to perform communication so as not to overlap time zone. Further, using the scan results of the terminal, calculates the Efficiency is an index representing the number of bits that can be transmitted per resource element, first base station for determining the radio resource allocation between cells using information Efficiency , a radio resource allocated to the terminal located in the cell center, and adapted to determine the radio resources to be allocated to the terminal located in the cell boundary.