Patent ID: 9210679
Filing Date: 2015-12-08
Classification: H04W

Abstract:
1. A method for performing an offline indication of a machine type communication (MTC) device in a mobile communication system, the method comprising: receiving, by a core network node, a first notification message informing that a user equipment (UE) can perform an offline indication from a first radio access network (RAN); receiving, by the core network node, a second notification message regarding an offline indication of the UE from a second RAN; comparing, by the core network node, the first notification message received from the first RAN and the second notification message received from the second RAN to determine whether or not the UE is in an offline state; receiving, by the core network node, MTC information including a detection time from an HSS (Home Subscription Server); and transmitting, by the core network node, the MTC information including the detection time to the UE through the second RAN.