Patent ID: 6505044
Filing Date: 2003-01-07
Classification: H04W

Abstract:
A method for providing a mobility management procedure of a Mobile Station (MS) in a Core Network (CN) of a mobile telecommunication system, the CN including CN entities of a plurality of CN entity types, the CN entity types providing a different set of services including circuit switched CN entity MSC/VLR (Mobile Switching Center/Visitor Location Register) for providing a circuit switched service and a packet switched CN entity SGSN (Serving GPRS Support Node) for providing a packet switched service, comprising:a) determining, by the MS, to which CN entity types to perform the update procedure, and selecting a CN entity to which to perform the update; b) updating, by the MS, the selected CN entity; c) acknowledging the MS, by the selected CN entity, whether update is successful or failed; and d) acknowledging the MS, by the selected CN entity, whether update of other CN entity is needed, if needed, defining, by the selected CN entity, to which other CN entity to perform update, and continuing b)-d), wherein the MS has a indicator which defines an update type, the update type including one of: all CN entities; one type of CN entity only, such that if the indicator has the update type of all CN entities, the MS updates the all CN entities; and if the indicator has the update type of one type of CN entity only, the MS updates the one type of CN entity only, and wherein the plurality of the CN entities include a SGSN (Serving GPRS Support Node) CN entity, a MSC/VLR (Mobile Switching Center/Visitor Location Register) CN entity, such that if the indicator has the update type of all CN entities, the MS updates the all CN entities including all of the SGSN CN entity and the MSC/VLR CN entity; if the indicator has the update type of SGSN CN entity only, the MS updates the SGSN CN entity only; if the indicator has the update type of MSC/VLR CN entity only, the MS updates the MSC/VLR CN entity only.