Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-07-11
2006-07-11
Lee, Andrew C. (Department: 2663)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S400000
Reexamination Certificate
active
07075930
ABSTRACT:
An method for PDSN (Packet Data Serving Node) initial assignment and re-selection in a wireless communication system is provided. The method is implemented in PCF (Packet Control Function) within a third-generation (3G) CDMA Radio Access Network (RAN). The methodology reduces the number of point-to-point (PPP) re-establishments, when a Mobile Station (MS) roams to a different packet zone/PCF. The method generates a table of PDSN identification numbers cross-referenced to the PDSN Internet protocol (IP) addresses, residing with each PCF. A PDSN Id number is selected from the table using the MS IMSI (International Mobile Station Identifier) as a key to perform the selection. The present invention methodology addresses the issue of forward and backward compatibility, scalability, reliability, and load sharing in the PDSN selection.
REFERENCES:
patent: 6233458 (2001-05-01), Haumont et al.
patent: 6404754 (2002-06-01), Lim
patent: 6415151 (2002-07-01), Kreppel
patent: 6567667 (2003-05-01), Gupta et al.
patent: 6580699 (2003-06-01), Manning et al.
patent: 6603763 (2003-08-01), Koshino
patent: 6834050 (2004-12-01), Madour et al.
patent: WO 01/67786 (2001-09-01), None
Lim Ph.D., Byung-Keun, Chang, Woon-Suk, “Consideration for PDSN Selection in 3G-IOS4.1-Reversion of AC-19990726-009”Third Generation Partnership Project 2Jul. 26-Jul. 30, 1999, 5 pages.
Freter, Karl, Campbell, Ed, Xu, Yingchun, “Fast RN Hard Handoff Procedure for the Ix (R-P) Interface”,Third Generation Partnership Project 2, Mar. 13, 2000, 6 pages.
“3GPP2 Access Network Interfaces Interoperability Specification Release A”, Jan. 18, 2000, pp. 111-183.
Basilier Henrik
Chen Ning Nicholas
Gustavsson Roger
Julka Vibhor
Coats & Bennett P.L.L.C.
Lee Andrew C.
Telefonaktiebolaget LM Ericsson (publ)
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