SERVICE IN WLAN INTER-WORKING, ADDRESS MANAGEMENT SYSTEM, AND METHOD

摘要

There is provided a solution for managing mobile terminal address allocation in a WLAN inter-working. The mobile terminal acquires permission to access a service and an address and can establish a tunnel. Moreover, in the management process, protection is performed by an appropriate encryption and no special security setting procedure is required. Furthermore, there is provided a method for acquiring an address associated with a session by utilizing the service permission procedure. Even when a terminal accesses a plurality of sessions, it is possible to hold a plurality of addresses and the address management is integrated by the policy control mechanism. Thus, after an address modification, there is provided means for the terminal and its home network to constitute a WLAN. Moreover, by using a channel usable in the procedure, QoS or tunneling information is corrected according to a new status and provided.