Title:
SYSTEM AND METHOD FOR PACKET DATA SERVICING NODE (PDSN) INITIAL ASSIGNMENT AND RESELECTION
Document Type and Number:
WIPO Patent Application WO2001078322
Kind Code:
A3
Abstract:
A 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.
Inventors:
CHEN NING NICHOLAS
BASILIER HENRIK
JULKA VIBHOR
GUSTAVSSON ROGER
BASILIER HENRIK
JULKA VIBHOR
GUSTAVSSON ROGER
Application Number:
PCT/EP2001/003893
Publication Date:
August 08, 2002
Filing Date:
April 05, 2001
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
International Classes:
H04L12/56; H04L29/06; H04L29/08; H04L29/12; H04W36/00; H04W8/26; H04W48/16; H04W84/04; (IPC1-7): H04L12/28; H04L12/56; H04L29/06; H04L29/12; H04Q7/22
Domestic Patent References:
| WO2001067786A2 | 2001-09-13 |
Other References:
"3GPP2 ACCESS NETWORK INTERFACES INTEROPERABILITY SPECIFICATION RELEASE A", 3GPP2 A.S0001, 18 January 2000 (2000-01-18), pages 111 - 183, XP002201614, Retrieved from the Internet [retrieved on 20020606]
Download PDF: