Patent ID: 8457625

Claim:
A mobile communication system comprising base stations, including a current station and other base stations, wherein the current station comprises: a report unit which exchanges a current target value of communication quality for a mobile station with the other base stations; a comparison unit which compares a current target value of the current station with target values of the other base stations; and a management unit which changes the current target value of the current station based on the comparison result of the comparison unit, wherein the comparison unit determines whether the current target value of the current station and the target values of the other base stations are within a control target range, the management unit maintains the current target value of the current station when all of the current target value of the current station and the target values of the other base stations are within the control target range, the management unit decreases the current target value of the current station when at least one of the current target value of the current station and the target values of the other base stations is out of the control target range, and the current target value of the current station is higher than each of the target values of the other base stations, the management unit increases the current target value of the current station when at least one of the current target value of the current station and the target values of the other base stations is out of the control target range, and the current target value of the current station is lower than each of the target values of the other base stations, and the management unit maintains the current target value of the current station when the current target value of the current station is between the target values of the other base stations.