Patent ID: 8811961

Claim:
A communication method for Machine-Type Communication (MTC) in a wireless communication system, the communication method comprising: receiving, by an MTC device, a paging-radio network temporary identifier (P-RNTI) that informs a reception of an MTC message from a base station; wherein the P-RNTI is received by monitoring a physical downlink control channel (PDCCH) periodically; receiving, by the MTC device, a paging message after the reception of the P-RNTI, wherein the paging message is received in a radio resource control (RRC) idle state, and wherein the paging message comprises at least one of an identifier indicating the MTC device, an identifier indicating an MTC group to which the MTC device belongs, a paging cause corresponding to the MTC message, or update information corresponding to the MTC message; starting, by the MTC device, an MTC timer when the paging message is received; attempting, by the MTC device, to receive the MTC message in accordance with the received paging message; and transmitting, by the MTC device before the MTC timer expires, a reception acknowledgement message regarding whether the MTC message has been received or not, wherein the reception acknowledgement message is an RRC connection request message or an RRC connection setup complete message which is used in an RRC connection.