System and method for performing hand-offs between internet...

Details System and method for performing hand-offs between internet... System and method for performing hand-offs between internet...

2005-11-01

2005-11-01

Najjar, Saleh (Department: 2155)

Electrical computers and digital processing systems: multicomput

Computer-to-computer session/connection establishing

C709S249000, C455S436000

Reexamination Certificate

active

06961774

ABSTRACT:
A system for performing a hand-off between two IP core networks in the wireless domain includes a source mobility control function (MCF) within a source IP core network that is coupled to a source access network providing service to a mobile unit. The source MCF is coupled to a source bearer path gateway (BPGW) within the source IP core network. The source BPGW communicates bearer traffic associated with the mobile unit between the source access network and a public switched telephone network (PSTN) gateway within the source IP core network. The PSTN gateway communicates the bearer traffic between the source BPGW and a PSTN coupled to the source IP core network. The source MCF is functionally separate from a call agent (CA) within the source IP core network. The CA is also coupled to the source BPGW. The CA sets up a first segment of a bearer path for the bearer traffic between the source BPGW and the PSTN gateway, and the source MCF sets up a second segment of the bearer path for the bearer traffic between the source access network and the source BPGW. A hand-off occurs between the source IP core network and the target IP core network in the wireless domain when the source MCF takes down the second segment and sets up third and fourth segments of the bearer path for the bearer traffic in response to the mobile unit entering a service area of a target access network coupled to a target IP core network. The third segment is between the source BPGW and a target BPGW within the target IP core network that communicates the bearer traffic between the target access network and the source BPGW, and the fourth bearer segment is between the target access network and the target BPGW.

REFERENCES:
patent: 6269402 (2001-07-01), Lin et al.
patent: 6360264 (2002-03-01), Rom
patent: 6466556 (2002-10-01), Boudreaux
patent: 6473413 (2002-10-01), Chiou et al.
patent: 6490451 (2002-12-01), Denman et al.
patent: 6590880 (2003-07-01), Maenpaa et al.
patent: 6651105 (2003-11-01), Bhagwat et al.
patent: 6665537 (2003-12-01), Lioy
patent: 6668175 (2003-12-01), Almgren et al.
patent: 6775253 (2004-08-01), Agrawal et al.
Handley, et al., RFC 2543, “SIP: Session Initiation Protocol,” Internet Engineering Task Force, Mar. 1999.
Internet Engineering Task Force (IETF) Request for Comment (RFC) 2543, “SIP: Session Initiation Protocol,” Mar., 1999, 132 pages.
Internet Engineering Task Force (IETF) Request for Comment (RFC) 2719, “Framework Architecture for signaling Transport,” Oct., 1999, 21 pages.
Internet Engineering Task Force (IETF) Request for Comment (RFC) 2705, “Media Gateway Control Protocol (MGCP),” Version 1.0, Oct., 1999, 116 pages.
U.S. Appl. No. 09/748,759, entitled “Mobility Manager in a Wireless IP Core Network,” filed Dec. 21, 2000, 35 total pages.

Affiliated with

Also associated with

Rating

System and method for performing hand-offs between internet... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for performing hand-offs between internet..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for performing hand-offs between internet... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3512937