Local mobility management apparatus for total mobility management, and total management method and system

A total mobility management method which receives data toward a terminal of which location is registered from a home agent for managing total mobility between local domains and transmits the data to a mobile access gateway that manages an area in which the terminal located, the total mobility management method comprising:

• (a) receiving a local domain mobility registration request message on the terminal from the mobile access gateway that receives a network attach message including information on the home agent from the terminal moving from a first local domain to a second local domain;
• (b) registering a location of the terminal in an area managed by the mobile access gateway according to the local domain mobility registration request message;
• and
• (c) transmitting a global domain mobility registration request message for reporting registration of the location in (b) to the home agent.

A total mobility management system comprising:

• a home agent managing total mobility between first and second local domains;
• a mobile access gateway receiving a network registration message that includes information on the home agent from a terminal moving from the first local domain to a management area in the second local domain and generating a local domain mobility registration request message on the terminal;
• and
• a local mobility management apparatus receiving the local domain mobility registration request message from the mobile access gateway, registering a location of the terminal in an area managed by the mobile access gateway, and transmitting a global domain mobility registration request message for reporting registration of the position to the home agent.