Patent ID: 8041358

Claim:
A base station apparatus forming a plurality of cells, selecting any one of the plurality of cells and performing data communication with a mobile terminal via a data channel of the selected cell, comprising: a calculating unit configured to calculate a total communication throughput value for every cell by totalizing communication throughput in the selected cell of each mobile terminal on a cell-basis; a receiving unit configured to receive reception quality information of the selected cell and the reception quality information of another movement destination cell in the plurality of cells, which are generated by the mobile terminal; a judging unit configured to judge whether or not the mobile terminal is in a cell switching zone by obtaining a difference between the reception quality information of the selected cell and the reception quality information of the movement destination cell, which are received by the receiving unit; and a determining unit configured to determine, if the mobile terminal is judged to be in the cell switching zone, the cell switching to the movement destination cell as a newly selected cell by comparing the total communication throughput value of the selected cell with the total communication throughput value of the movement destination cell, which are calculated by the calculating unit.