Patent ID: 8942155
Filing Date: 2015-01-27
Classification: H04W

Abstract:
1. A data transmitting method for providing a machine type communication (MTC) service in a mobile communication system including at least one MTC device, the method comprising: subscribing, by the MTC device, to a multicast service provided by the mobile communication system; and recognizing, by the MTC device, at least one wirelessly announced multicast service and performing joining a desired multicast service, determining, by the MTC device, whether an object of the joining is to transmit collected data transmission, further comprising: in cases other than a case in which the MTC device performs the joining to transmit collected data information, starting a session for the multicast service; performing group paging for the at least one MTC device that will receive the multicast service; transmitting, by the MTC device, a response message as a response to the group paging; allocating necessary resources to the at least one MTC device; and transmitting multicast service-related data to the at least one MTC device that will receive the multicast service, further comprising: in a case in which the MTC device performs the joining to transmit the collected data information, transmitting, by the MTC device, the collected data information to a network; and performing, by the MTC device, service leaving, wherein in the case in which there is no data transmission or reception for a certain period of time after transmitting multicast service-related data to the at least one MTC device that will receive the multicast service, the session is stopped, and the MTC device releases resources as the session is stopped.