ROAMING METHOD BETWEEN THE PACKET BASED ON SYSTEM AND 3GPP SYSTEM

摘要

A roaming method between the packet-based next generation mobile communication system and a 3GPP(3rd Generation Partnership Project) mobile communication system are provided to integrate the management the establishment of a routing path with the management of a user session so that the components of the packet-based next generation mobile network are interlinked. A next generation mobile telecommunication system comprises a mobility management part and a routing management part for managing a routing path in regard to a user's traffic. A roaming process includes a process of acquiring information relating to a user's terminal in a previous connection system of the user's terminal(201) after receiving the network registration request from the user's terminal. Thereafter, a router advertisement message is transmitted to the user's terminal(205). Thereafter, the registration request message is transmitted to a home subscriber server(207) after receiving a mobile IP registration request message(206) in order to re-establish the session from the user's terminal. Thereafter, a mobile IP registration response is transmitted to the user's terminal(211) when the response message for notifying the change of the routing information(210) corresponding to the user's terminal is received from the home subscriber server.