Mobility control systems and mobility control methods

A mobility control method for a communication system having a mobile terminal and a plurality of base stations that can communicate with the mobile terminal, said mobility control method performing a handover control for said mobile terminal that is moving between communication areas of said plurality of base stations, said mobility control method comprising:

• a step that causes said base stations to notify said mobile terminal of area information that represents the communication areas of said plurality of base stations;
• a step that causes said mobile terminal to decide a handover destination base station based on position information of the mobile terminal and the area information concerning which said base stations notify said mobile terminal and transmits said handover request to the base station;
• a step that causes said base stations to request a base station with which the mobile terminal is communicating for communication information of the mobile terminal if said base stations receive the handover request that said mobile terminal transmits;
• a step that causes said base stations to notify a base station of the communication information of the mobile terminal if said base stations are requested for the communication information of said mobile terminal;
• and
• a step that causes said base stations to perform a handover process for the mobile terminal based on the communication information if said base stations acquire the communication information concerning which the base station notifies said base stations of the communication information of the mobile terminal.

A non-transitory record medium storing a program for a mobility control system having a mobile terminal and a plurality of base stations that can communicate with the mobile terminal, said program performing a handover control for said mobile terminal that is moving between communication areas of said plurality of base stations, said program causing said base stations to execute procedures comprising:

• a procedure that notifies said mobile terminal of area information that represents the communication areas of said plurality of base stations;
• a procedure that requests a base station with which the mobile terminal is communicating for communication information of the mobile terminal if said base station receives a handover request that said mobile terminal transmits;
• a procedure that notifies a base station of the communication information of the mobile terminal if the base station requests the communication information of the mobile terminal;
• and
• a procedure that performs a handover process for the mobile terminal based on the communication information if said base stations acquire the communication information concerning which said base stations notify the mobile terminal.