METHOD FOR CONTEXT EXCHANGE BETWEEN ACCESS GATEWAY IN NETWORK BASED MOBILITY TECHNOLOGY

摘要

PURPOSE: An information exchange method between access gateways is provided to transfer AAA(Authentication, Authorization, Accounting) state information, a service profile, a QoS profile, and a user profile of a mobile terminal. CONSTITUTION: A first MAG(Mobile Access Gateway)(210) transmits a profile reply message including a user profile of MN(Mobile Node)(10), a QoS profile, service profile, and an authentication profile. A second MAG(220) receives a profile response message. The second MAG updates proxy binding information. The second MAG generates a bidirectional tunnel between LMAs(Local Mobile Anchor). The first MAG deletes the tunnel between LMAs according to the binding update.