Patent ID: 7725722
Filing Date: 2010-05-25
Classification: H04W

Abstract:
1. A method for triggering re-negotiation of a session when an access terminal (AT) moves from one access network (source AN) to another access network (target AN) having different capability in high rate packet data system, the method comprising the steps of: (a) the AT sending a UATI Request message to the target AN when the AT recognizes that it has crossed a boundary; (b) the target AN acquiring the source AN address from the UATI and transmitting a session information record message to the source AN; (c) the source AN sending session information along with non-default protocol types that the AT supports; and (d) the target AN checking whether it can support protocol types more advanced from ones currently in use and initiating session re-negotiation if it can support the more advanced protocol types.