Method and Apparatus for Optimization of SIGCOMP UDVM Performance

Abstract

A mobile communication system that utilizes multiple access technologies achieves multiple session registrations by deriving a plurality of extended unique device identifications from a specific unique device identification (e.g., private user identification (PIID) stored on a subscriber identity module (SIM)) assigned to a user equipment. Each of the plurality of extended unique device identifications have the benefit of allowing multiple registrations with one or more access networks while allowing a home subscriber system to detect the one unique device identification embedded in the extended unique device identifications for authentication purposes. Thereby, a large population of deployed UEs and access network infrastructure may benefit without replacement by allowing a UE to maintain session continuity when transitioning between access networks, to select a preferred access technology when in overlapping coverage areas without session interruption, or to maintain multiple sessions (e.g., simultaneous Voice over IP (VoIP) and media streaming) with different access networks.

Dependencies are inferred from the claim text.