Patent ID: 7428415

Claim:
A method of managing the session information of an access terminal (AT) in a communication system that includes a session controller and mobility manager (SC/MM), a plurality of access networks (ANs), and a plurality of ATs wirelessly communicable with the ANs, the method comprising the steps of: upon receipt of a Connection Request message from the AT, transmitting to the SC/MM a Session Retrieve Request message by an AN; upon receipt of the Session Retrieve Request message from the AN, searching for session information of the AT, and transmitting to the AN a Session Retrieve Response message including the session information by the SC/MM, wherein the SC/MM is communicably coupled to a Packet Data Serving Node (PDSN); upon receipt of the Session Retrieve Response message, transmitting to the AT a Connection Response message by the AN: transmitting to the SC/MM a General Update Request message including session information of the AT after transmitting the Connection Response message to the AT by the AN in case the AN detects a MN ID of the AT or a session update is required for the AT; and upon receipt of the General Update Request message, updating the session information of the AT and transmitting to the AN a General Updaate Response message by the SC/MM.