Signaling Architecture for Decomposed Service Network Elements Operable with IMS

  Giyeong Son, Allan Lewis, and Bruno R. Preiss, January 2009. Patent Application[89].

In one embodiment, a service gateway decomposition method is described that is operable in an Internet Protocol (IP) Multimedia Subsystem (IMS) environment. A service gateway controller (SGC) is provided for effectuating a signaling interface with respect to at least one remote services server. One or more service gateways (SGWs) are provided for effectuating a message transport interface with respect to the remote services server, wherein the SGC and SGWs are interfaced together using a suitable signaling architecture.