Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2007-08-03
2010-02-23
Sing, Simon (Department: 2614)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S352000, C370S353000, C370S355000, C370S356000
Reexamination Certificate
active
07668159
ABSTRACT:
Methods and apparatus for use in processing Session Initiation Protocol (SIP) calls in a network environment which includes a circuit-switched (CS) network and an Internet Protocol (IP) multimedia subsystem (IMS) network. In one illustrative technique, a SIP Register message is sent from a mobile communication device to the IMS network for registration of the mobile device. A SIP 200 OK message is received by the mobile device from the IMS network in response to sending the SIP Register message. The SIP 200 OK message has one or more variable call parameters or a network address at which to obtain the variable call parameters. The variable call parameters may include an E.164 number which may be dynamically assigned to the mobile device by the IMS network, and/or a time or timer value which defines a time period for which the E.164 number remains assigned to the mobile device. Other information may be included such as preferred access network/technology information. The variable call parameters are stored in memory of the mobile device and utilized for processing each one of a plurality of SIP calls involving the mobile device. After registration, the mobile device may initialize a timer with the timer value, run the timer and, when processing a SIP call, cause a CS call setup message which includes the E.164 number to be sent to the IMS network for routing of the call if the timer has not yet expired. If the timer has expired, the mobile device may refrain from utilizing the deassigned E.164 number in the CS call setup message and alternatively obtain and utilize a new E.164 number or an altogether different technique for processing of the SIP call. Alternative techniques for obtaining parameters and formatting the data are also described.
REFERENCES:
patent: 2003/0212912 (2003-11-01), Bajko et al.
patent: 2004/0137918 (2004-07-01), Varonen et al.
patent: 2004/0203680 (2004-10-01), Sylvain
patent: 2005/0058125 (2005-03-01), Mutikainen et al.
patent: 2005/0195762 (2005-09-01), Longoni et al.
patent: 2005/0233727 (2005-10-01), Poikselka et al.
patent: 2006/0209805 (2006-09-01), Mahdi et al.
patent: 2006/0268900 (2006-11-01), Larsson et al.
patent: 2007/0041367 (2007-02-01), Mahdi
patent: 2007/0049281 (2007-03-01), Chen et al.
patent: 2007/0060097 (2007-03-01), Edge et al.
patent: 2007/0064886 (2007-03-01), Chiu et al.
patent: 2007/0165612 (2007-07-01), Buckley
patent: 2007/0183410 (2007-08-01), Song et al.
patent: 1 811 745 (2007-07-01), None
patent: 1020060114349 (2006-11-01), None
patent: 2004068261 (2004-08-01), None
European Search Report; European Patent Office; Sep. 17, 2007; 10 pages.
Oxley, D. et al.; “Techniques to Support VoIP Using WAP In A 2G and GPRS In 2.5G Networks”; 5 pages, 2002.
“3GPP TSG-SA2 Meeting #55”; Busan, South Korea; Oct. 23-27, 2006; pp. 1 through 7.
3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Voice Call Continuity between CS and IMS; Stage 2 (Release 7); Aug. 2006; 41 pages.
European Search Report; European Patent Office; Jan. 2, 2008; 14 pages.
3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Voice Call Continuity (VCC) between Circuity Switched (CS) and IP Multimedia Subsystem (IMS); Stage 2 (Release 7); Jun. 2007; 36 pages.
Korean Patent Office; Notice Requesting Submission of Opinion with English Translation; Aug. 7, 2008; 11 pages.
PCT Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration; International Searching Authority; Sep. 23, 2008; 14 pages.
European Search Report; European Patent Office; Oct. 22, 2008; 8 pages.
“Communication Management”; XP-002103158; pp. 501-565.
T. Alexiou et al. ; “The SIP ALLOCATE Method” ; SIPPING Working Group ; Feb. 2002 ; pp. 1-9.
“3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Voice Call Continuity between CS and IMS Study (Release 7)”; Global System for Mobile Communications; Dec. 2005; 153 Pages.
European Patent Office; EP Search Report for Application No. 06118838.9-1244; Jan. 23, 2007; 6 pages.
Examiner's First Report for Application No. 2007221785; Australian Government, IP Australia; Jan. 29, 2009; 2 pages.
EPO Extended European Search Report in Application No. 09154845.3; European Patent Office; Apr. 22, 2009; 6 pages.
Digital cellular telecommunications system (Phase 2+); Numbering, addressing and identification (3GPP TS 03.03 version 5.5.0 Release 1996); Global System for Mobile Communications; Sep. 2003; 22 pages.
China Office Action, Application No. 200710007388.8; Republic of China; Oct. 30, 2009; 15 pages.
Allen Andrew
Bakker John-Luc
Buckley Adrian
King Simon
Research In Motion Limited
Sing Simon
The Danamraj Law Group, P.C.
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