Wireless communication system, neighbor cell list optimizing system, base station, neighbor cell list updating method, and program

A neighbor cell list optimizing system which updates a neighbor cell list which is set to a first base station which manages a first cell in which a first mobile terminal group exists, and in which a specific neighbor cell which is a handover destination candidate of the first mobile terminal group among second cells which are neighbor to the first cell and in which second mobile terminal groups exist is registered, the neighbor cell list optimizing system comprising:

• a measurement information collecting unit which collects measurement information of radio quality of the second cells which is transmitted from the first mobile terminal group to the first base station, and measurement information of radio quality of the first cell which is transmitted from the second mobile terminal groups which exist in the second cells to second base stations which manage the second cells;
• a reliability evaluating unit which performs processing of evaluating reliability of the measurement information of the second cells;
• a priority calculating unit which, when the reliability is a predetermined threshold or less, calculates a priority for registering the second cells in the neighbor cell list of the first cell based on the measurement information of the first cell;
• and
• a neighbor cell list updating unit which performs control of determining a neighbor cell to register in the neighbor cell list, based on the priority calculated by the priority calculating unit, and updating the neighbor cell list.

A first base station which manages a first cell in which a first mobile terminal group exists, and which updates a neighbor cell list which is set to the first base station and in which a specific neighbor cell which is a handover destination candidate of the first mobile terminal group is registered, the first base station comprising:

• a measurement information collecting unit which is connected to a second base station which manages a second cell which is neighboring to the first cell and in which a second mobile terminal group exists, and which collects measurement information of radio quality of the second cell which is transmitted from the first mobile terminal group to the first base station, and measurement information of radio quality of the first cell which is transmitted from the second mobile terminal group to the second base station;
• a reliability evaluating unit which performs processing of evaluating reliability of the measurement information of the second cell;
• a priority calculating unit which, when the reliability is a predetermined threshold or less, calculates a priority for registering the second cell in the neighbor cell list of the first cell based on the measurement information of the first cell;
• and
• a neighbor cell list updating unit which performs control of determining a neighbor cell to register in the neighbor cell list, based on the priority calculated by the priority calculating unit, and updating the neighbor cell list.