METHOD FOR DETACHMENT OF MS MOVING BETWEEN COMMUNICATION SYSTEMS

摘要

PURPOSE: A method for detaching mobile terminal from a communication system sharing the same root area is provided to prevent the waste of the system resource by accurately managing the information related to the mobile terminal within the ERA(Equivalent Route Area). CONSTITUTION: A mobile terminal decides separation from system(400). The mobile terminal transfers the separation request to the service node SGSN (Serving GPRS Support Node)(401). The service node SGSN transfers the context deletion request message to the service node MME/UPE(Mobile Management Entity/User Plane Entity)(402). The service node MME/UPE transfers the context deletion response to the service node SGSN(403). The service node SGSN transfers the separation grant to the mobile terminal(404). The service node SGSN transfers the separation pointer to the HSS(Home network register)(405).