Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2002-02-04
2008-08-19
Pham, Brenda (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S395200
Reexamination Certificate
active
07415026
ABSTRACT:
A method and apparatus for session release in a communication system supporting Internet Protocol (IP) communications. In one embodiment, when the MS has lost a bearer connection (i.e., PPP session), the notification is provided by a Packet Data Service Node (PDSN) to the serving Session control Manager (SCM) via IP multicast. If two PPP sessions are active for a given IP communication, and one PPP session is not lost, the PDSN associated with the active PPP session sends a correction message to ignore any notification message sent by the other PDSN. In an alternate embodiment, the Authentication Authorization Accounting (AAA) server uses start and stop accounting requests, received from PDSNs, to determine when to notify the serving SCM to terminate an IP communication.
REFERENCES:
patent: 6119160 (2000-09-01), Sitaraman et al.
patent: 6560239 (2003-05-01), Frid et al.
patent: 6775262 (2004-08-01), Skog et al.
patent: 6792457 (2004-09-01), Zhang et al.
patent: 6819663 (2004-11-01), Komuro
patent: 6854014 (2005-02-01), Amin et al.
patent: 6999449 (2006-02-01), Barna et al.
patent: 2001/0028636 (2001-10-01), Skog et al.
patent: 2002/0120759 (2002-08-01), Faccin et al.
patent: 2003/0028806 (2003-02-01), Govindarajan et al.
patent: 2003/0079021 (2003-04-01), Fan
patent: 200044133 (2000-07-01), None
patent: 200167786 (2001-09-01), None
Alfano, Frank, et al., “PDF to P-CSCF Interface,” 3rdGeneration Partnership Project 2 “3GPP2,” Lucent Technologies, Kobe meeting Oct. 2003.
Stevens, W, R., “TCP/IP Illustrated, vol. 1 The Portocols, TCP Timeout and Retransmission,” TCP/IP Illustrated vol. 1: The Protocols, Professional Computing Series, Reading MA: Addison Wesley, US. vol. 1, pp. 297-337.
3GPP: “Wireless IP Network Standard” 3GPP Standard, Jul. 16, 2001, XP002234109.
International Search Report PCT/US2003/003360, International Search Authority-European Patent Office, Jul. 10, 2003.
Netbrain: “Help On: MACPPP Setup” Netbrain Home Page, ′Online! Mar. 4, 1996, pp. 1-4, XP002253504.
Hsu Raymond T.
Nasielski John W.
Katbab Abdollah
Pham Brenda
Qualcomm Incorporated
Rouse Thomas R.
Tam Kam T.
LandOfFree
Method and apparatus for session release in a communication... 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 for session release in a communication..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for session release in a communication... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3993058