Patent ID: 7411927
Filing Date: 2008-08-12
Classification: H04L,H04Q,H04W

Abstract:
1. A computer-readable medium encoded with a data structure operable to perform the following: communicating, by a packet data serving node, with a current packet controller function through a tunnel, the current packet controller function operating as a packet switch that provides a circuit service between the packet data serving node and a base station controller, the tunnel enabling the current packet controller function and the packet data serving node to communicate over an Internet Protocol-based network, the current packet controller function serviced by the packet data serving node; receiving, through the tunnel, a registration request from a mobile node, the mobile node communicating with the current packet controller function; determining, at the packet data serving node, whether the registration request comprises a previous access network identifier identifying a previous packet controller function; determining, at the packet data serving node, whether the mobile node is serviced by a mobile Internet Protocol; determining, at the packet data serving node, whether the mobile node communicated with a previous packet controller function serviced by the packet data serving node; and deciding, at the packet data serving node, whether to negotiate a point-to-point session for the mobile node in response to the determinations.