Patent ID: 8477704

Claim:
A base station for wirelessly communicating with a plurality of mobile terminal devices, said base station comprising: a control unit for controlling assignment of radio resources to said plurality of mobile terminal devices; and a storage unit, wherein: said base station is configured to divide radio resources that are available to the wireless communications with said mobile terminal devices into a plurality of resource blocks on a region represented by frequency and time base, and controls the assignment of said radio resources to said plurality of mobile terminal devices on said resource block basis; and said control unit is configured to determine whether or not a cell, located in a region where radio waves transmitted from said base station are reachable, is congested in a predetermined timing; to notify adjacent base stations of the determination result; to store the result of determination of congestion or non-congestion received from the adjacent base stations in the said storage unit; to check whether or not the adjacent base stations are congested, when said base station determined that said cell is not congested; to voluntarily restrict the use of resource blocks and to divide an empty resource block, when the adjacent base stations are congested; and to notify the adjacent base stations of information on the empty resource block.