DYNAMIC HOME AGENT SYSTEM FOR WIRELESS COMMUNICATION SYSTEM

摘要

PURPOSE: A dynamic home agent system for wireless communications system is provided to secure packet data service to a mobile subscriber station during roaming by a mobile IP home agent conducting dynamic assignment through dynamic assignment of an IP address. CONSTITUTION: A mobile subscriber station(101) registers itself to a visit destination wireless network(2) to make a request of assignment of a dynamic IP address. The registration/authentication request is given to an authentication center(133) of a home wireless network(1) of the mobile subscriber station and the authentication center authenticates the subscriber. Then the authentication center and an HA(Home Agent,111) generate a dynamic mobile IP key. The mobile subscriber station(101) uses the dynamic IP address and the dynamic mobile IP key generated by the HA(111) to start registration of a mobile IP.