Method and apparatus to facilitate inter-AN HRPD hard handoff

Details Method and apparatus to facilitate inter-AN HRPD hard handoff Method and apparatus to facilitate inter-AN HRPD hard handoff

2005-09-13

2009-11-17

D'Agosta, Stephen M (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S328000, C370S332000, C370S333000, C370S334000, C455S432100, C455S434000, C455S436000, C455S437000, C455S438000

Reexamination Certificate

active

07620017

ABSTRACT:
Various embodiments are described to address the need for reduced handoff delays associated with inter-AN (access network) HRPD (High Rate Packet Data)/1XEV-DO handoffs. The disclosed approach enables an AT (101) with an active packet data session to perform a hard handoff from a source AN (121, 221) to a target AN (122, 222) without having to force the data session dormant. Unlike known hard handoff approaches that involve coordination by a mobile switching center (MSC), the disclosed approach uses peer-to-peer signaling with no MSC involvement, such as that between source and target ANs or PCFs (131, 132, 231, 232). For example, data session information at the source side is transferred via new A13 messaging to the source entity's target-side peer to otherwise reduce signaling between the source and target equipment.

REFERENCES:
patent: 6947399 (2005-09-01), Sen et al.
patent: 7420943 (2008-09-01), Lakshmi et al.
patent: 2002/0067706 (2002-06-01), Bautz et al.
patent: 2002/0067707 (2002-06-01), Morales et al.
patent: 2003/0053430 (2003-03-01), Choi et al.
patent: 2003/0142648 (2003-07-01), Semper
patent: 2003/0145091 (2003-07-01), Peng et al.
patent: 2003/0223427 (2003-12-01), Chang et al.
patent: 2003/0224792 (2003-12-01), Verma et al.
patent: 2004/0085931 (2004-05-01), Rezaiifar
patent: 2004/0203771 (2004-10-01), Chang et al.
patent: 2004/0214574 (2004-10-01), Eyuboglu et al.
patent: 2004/0248577 (2004-12-01), Sayeedi
patent: 2005/0078634 (2005-04-01), Seo
patent: 2005/0096055 (2005-05-01), Colban et al.
patent: 2005/0188113 (2005-08-01), Lee et al.
patent: 2005/0192010 (2005-09-01), Kirla
patent: 2005/0195787 (2005-09-01), Madour et al.
patent: 2005/0232198 (2005-10-01), McCann et al.
patent: 2005/0276273 (2005-12-01), Oprescu-Surcobe et al.
patent: 2006/0187883 (2006-08-01), Abrol et al.
3GPP2 A.S0013-8, Version 1.0, Apr. 2004, 3G: 3rdGeneration Partnership Project 2 ‘2GPP2’, Interoperability Specification (IOS) for cdma2000 Access Network Interfaces-Part 3 Features, 3G-IOSv4.3.1, pp. 182-186.
TIA-878-1, IOS HRPD, TR45 , Interoperability Specification (IOS) for High Rate Packet Data (HRPD) Access Network Interfaces, TIA-878-1, Publication Version: May 2003, pp. 3-15 and 3-16.
TIA Document, “Interoperability Specification (IOS) for High Rate Packet Data (HRPD) Access Network Interfaces—Alternative Architecture”, TIA-1878, May 2003, Telecommunications Industry Association, pp. 3-25, 3-29 through 3-30.

Affiliated with

Also associated with

Rating

Method and apparatus to facilitate inter-AN HRPD hard handoff does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus to facilitate inter-AN HRPD hard handoff, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus to facilitate inter-AN HRPD hard handoff will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4085041