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Method and Apparatus for User Equipment Registration in a Voice over Long Term Evolution via Generic Access

  • US 20090270098A1
  • Filed: 04/28/2009
  • Published: 10/29/2009
  • Est. Priority Date: 04/29/2008
  • Status: Abandoned Application
First Claim
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1. In a communication system comprising an evolved packet system (EPS) and a Voice over long term evolution (LTE) via Generic Access (VOLGA) network controller (VANC) communicatively coupling the EPS to a legacy circuit switched (CS) core network, the EPS comprising an evolved packet core (EPC) and an evolved Universal Mobile Telecommunication System (UMTS) Terrestrial Radio Access Network (E-UTRAN) for communicatively coupling a user equipment (UE) to the EPC, wherein the EPC is not capable of providing circuit switched (CS) services for the UE and the legacy circuit switched (CS) core network is capable of providing CS services to the UE, a method of registering a user equipment with the VoLGA communication system for providing CS services for the UE, the method comprising:

  • sending a register request message from the UE to the VANC to register the UE with the VANC, the register request message comprising location information identifying an EPS cell upon which the UE has camped; and

    receiving a register response message at the UE from the VANC, the register response message indicating whether the UE is permitted to access services of the VANC.

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