METHOD AND APPARATUS FOR PROVIDING A SHORT MESSAGE SERVICE FOR PACKET SWITCHING-ONLY SUBSCRIPTION IN A MOBILE COMMUNICATION NETWORK, WHICH ALLOW PACKET SWITCHING-ONLY USER EQUIPMENT TO RECEIVE THE SMS THROUGH A MOBILITY MANAGEMENT ENTITY EFFICIENTLY

摘要

PURPOSE: A method and an apparatus for providing a short message service (SMS) for packet switching-only subscription in a mobile communications network are provided to confirm that user equipment (UE) is responded or delivered to or with SMS in mobility management entity (MME) even when the UE is for evolved packet system (EPS)-only attachment or combined EPS/IMSI attachment.;CONSTITUTION: A UE communication unit (1310) delivers a short message to UE. If the delivery is failed, a home subscriber server (HSS) communication unit (1320) delivers information indicating UE is not reachable for MME to an HSS, and an information storage unit (1330) stores the information indicating UE is not reachable for MME. When detecting the UE is reachable after the delivery is failed, the HSS communication unit receives a message indicating UE is ready for short message from the MME and delivers the message to the HSS. is connectable the HSS communications unit delivers the preparation of the short message send to HSS.;COPYRIGHT KIPO 2013;[Reference numerals] (1220) Information storage unit; (1310) Device communication unit; (1320) HSS communication unit