Method and Apparatus for Handover of a Packet Switched Communication Session

• US 20080123596A1
• Filed: 10/29/2007
• Published: 05/29/2008
• Est. Priority Date: 07/14/2006
• Status: Abandoned Application

• Current Assignee: Amit Khetawat, Michael D. Gallagher, Milan Marković, Patrick Tao
• Original Assignee: Amit Khetawat, Michael D. Gallagher, Milan Marković, Patrick Tao
• Inventors: Tao, Patrick, Gallagher, Michael D., Markovic, Milan, Khetawat, Amit
• Application Number:
  US11/927,670
• Publication Number:
  US 20080123596A1
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

Some embodiments provide a method of registering a user equipment (UE) in a communication system that includes a licensed wireless communication system and a generic access network (GAN) that has a generic access network controller (GANC). The method sends a register message from the UE to the GANC that indicates a GAN mode capability of A/Gb only for the UE. When the GANC has a GAN mode capability of A/Gb, the GANC registers the UE with the GAN. When the GANC has a GAN mode capability of Iu only, the GANC rejects the register request message. When the GANC has a GAN mode capability of both A/Gb and Iu, the GANC registers the UE based on a set of GANC mode selection rules that the GANC applies for registering UEs with the GAN.

Claims

1-4. -4. (canceled)

5. A method of relocating a packet service (PS) communication session of a user equipment (UE) from a first wireless communication system comprising a network controller to a second wireless communication system comprising a core network and a universal mobile telecommunication system (UMTS) terrestrial radio access network (UTRAN), wherein the UTRAN and the network controller are for communicatively coupling the UE to the core network, the method comprising:

a) receiving a handover command at the UE, the handover command comprising a channel access information for a target cell in the UTRAN;

b) accessing the target UTRAN cell by the UE using said channel access information;

c) configuring a set of UE protocol layers for receiving data from the UTRAN; and

d) receiving packet data at the UE from the UTRAN.