Patent ID: 7363376

Claim:
A method comprising: receiving a request to establish an end-to-end network communication session between a subscriber unit in a wireless communication system and a data network access server through a first basestation; determining whether the received request is a request for a new session or a request to handoff an existing session from a second basestation wherein determining comprises analyzing attribute-value pair(s) (AVP) of the received request to identify a callType AVP and identifying the received request as a request for a new session if an identified callType AVP associated with the received request denotes a new call; generating, if the received request is a request for a new session, a communication session identifier that follows the session and the subscriber unit as the subscriber unit moves from one basestation coverage area to another basestation coverage area; authenticating, if the request is a request to handoff the existing session, an existing communication session identifier received with the request; and wherein generating the communication session identifier further comprises: composing a deterministic element of the communication session identifier; composing a random element of the communication session identifier; and employing a mathematical function to generate the communication session identifier using the deterministic element and the random element.