DATA PACKET RADIO SERVICE WITH ENHANCED MOBILITY MANAGEMENT

DATA PACKET RADIO SERVICE WITH ENHANCED MOBILITY MANAGEMENT

THE ADDRESS OF A LATEST SERVING GPRS SUPPORT NODE (SGSN) (241,242) IS PROVIDED TO A GATEWAY GPRS SUPPORT NODE (GGSN) (20) BY A SPECIAL UPDATE SGSN ADDRESS REQUEST MESSAGE WHICH IS SENT FROM THE SGSN (241,242) TO THE GGSN (20).FOR A SUBSCRIBER WHOSE SUBSCRIPTION PERMITS,THE ADDRESS OF THE LATEST SGSN...

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Bibliographische Detailangaben
Hauptverfasser: JOSE JAVIER CABERO COMBARROS, THIERY JOSSE, MIGUEL COBO ESTEBAN
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Zusammenfassung:THE ADDRESS OF A LATEST SERVING GPRS SUPPORT NODE (SGSN) (241,242) IS PROVIDED TO A GATEWAY GPRS SUPPORT NODE (GGSN) (20) BY A SPECIAL UPDATE SGSN ADDRESS REQUEST MESSAGE WHICH IS SENT FROM THE SGSN (241,242) TO THE GGSN (20).FOR A SUBSCRIBER WHOSE SUBSCRIPTION PERMITS,THE ADDRESS OF THE LATEST SGSN NODE (241,242) IS SENT IN THE UPDATE SGSN ADDRESS REQUEST MESSAGE FOR A QUALIFIED PACKET DATA PROTOCOL (PDP) CONTEXT.A QUALIFIED PDP CONTEXT (1) HAS A STATIC PDP ADDRESS; AND (2) IS NOT ACTIVATED. THE UPDATE SGSN ADDRESS REQUEST MESSAGE CAN BE SENT FROM THE SGSN (241,242) TO THE GGSN (20) IN EITHER A GPRS ATTACH SCENARIO OR AN INTER-SGSN ROUTING AREA UPDATE SCENARIO.IN RESPONSE TO THE UPDATE SGSN ADDRESS REQUEST MESSAGE, THE GGSN (20) SENDS AN UPDATE SGSN ADDRESS RESPONSE MESSAGE WHICH ADVISES WHETHER THE UPDATING OF THE ADDRESS FOR THE SGSN (241,242) AT THE GGSN (20) HAS BEEN SUCCESSFUL.(FIG 4A)