Patent ID: 8521165

Claim:
A method of distributing load for a wireless communication, the method comprising: setting a first index value representing levels of received power or received quality of reference signals from a first base station covering a first area, and a second index value representing levels of received power or received quality of reference signals from a second base station covering a second area inside the first area; handing over a mobile station assigned to the first base station to the second base station when the first index value is smaller than a first threshold and when the second index value is larger than a second threshold; handing over a mobile station assigned to the second base station to the first base station when the second index value is smaller than a third threshold or when the first index value is larger than a fourth threshold; and decreasing, when the load on the first base station is to be reduced, the second threshold and the third threshold by degrees respectively, and increasing, when the second threshold reaches a second lower limit and the third threshold reaches a third lower limit, the first threshold and the fourth threshold by degrees.