Large-scale wide area network system having location information management function

A large-scale wide area network system having a location information management function for enabling a mobile terminal to move between wireless zones, comprising:

• a plurality of wireless communication base devices respectively configuring a plurality of access points covering the wireless zones subordinate thereto;
• a plurality of wireless communication base control devices performing integrated control of the plurality of corresponding wireless communication base devices, and managing IP addresses of the wireless communication base control devices of a home location and a visited location as location information of the mobile terminal;
• a plurality of in-area location information management devices respectively connected to the plurality of corresponding wireless communication base control devices via respective area IP networks corresponding to areas administered by the same common carrier, and managing the IP address of the wireless communication base control device of the home location as the location information of the mobile terminal;
• and
• a wide area location information management device hierarchically connected to the plurality of in-area location information management devices via a wide area IP network corresponding to a wide area administered by the common carrier, and managing the IP address of the corresponding in-area location information management device as the location information of the mobile terminal.