Patent ID: 9014078
Filing Date: 2015-04-21
Classification: H04B,H04L,H04W

Abstract:
1. A method for receiving a Medium Access Control (MAC) control message for an M2M device in a wireless access system, the method comprising: receiving a paging message including an M2M Group Identifier (MGID) and an indicator, wherein the M2M Group Identifier (MGID) identifies an M2M group to which the M2M device belongs and the indicator indicates a multicast data transmission for the M2M device; receiving an M2M multicast assignment A-MAP information element (M2M MA A-MAP IE) including resource assignment information, wherein the resource assignment information indicates a resource region to which the MAC control message for the M2M device is being transmitted; and receiving a Medium Access Control Protocol Data Unit (MAC PDU) including the MAC control message, the MAC control message being multicast through the resource region indicated by the resource assignment information, when a Cyclic Redundancy Check (CRC) bit being masked to the M2M MA A-MAP IE includes the MGID, wherein the CRC bit being masked to the M2M MA A-MAP is configured with a masking prefix, a type indicator, and the MGID, and wherein a MAC header of the MAC PDU includes a first flow identifier indicating whether a payload of the MAC PDU is encrypted.