Patent ID: 7920863

Claim:
An access network system for a wireless communication network comprising: a first communication interface configured to maintain a mobile internet protocol (MIP) session with a mobile station, the first communication interface being configured to receive a re-registration message having a lifetime from the mobile station; a second communication interface configured to connect to a home agent located outside the access network system; a logic component configured to store and determine a network policy associated with the mobile station, the network policy including information relating to a termination of the MIP session in the absence of a re-registration request from the mobile station; and a gateway component configured to store and to track a time of the MIP session, wherein the gateway component is configured to initiate a termination of the MIP session with the mobile station without any approval from the mobile station or a home network of the mobile station if the re-registration message is not received before the time of the MIP session exceeds the lifetime received from the mobile station, and wherein the gateway component is configured to maintain the MIP session with the mobile station if the re-registration message is received before the time of the MIP session exceeds the lifetime received from the mobile station.