Patent ID: 8849281

Claim:
A wireless communication system comprising: a first base station configured to form a first cell; and a second base station configured to form a second cell which contains the first cell of the first base station or overlaps the first cell, wherein: the first base station is configured to estimate a first radio-wave interference in an uplink direction, which the first base station receives from a group of mobile terminals which are configured to communicate wirelessly with another base station or a plurality of other base stations; when the first radio-wave interference is equal to or larger than a predetermined threshold, the first base station is configured to increase a transmission power so as to extend the radius of the first cell; and out of the group of mobile terminals, one mobile terminal or a plurality of mobile terminals that exist in the expanded first cell and that are connected to the second base station are disconnected from the second base station and connected to the first base station; the first base station is configured to evaluate an effect of interference reduction deriving from connection of the one mobile terminal or a plurality of mobile terminals, which are located on a perimeter of the first cell, to the first base station itself; and when the effect is low, the one mobile terminal or the plurality of mobile terminals connected to the first base station are returned to the second base station that is an original connection destination.