Patent ID: 8711793

Claim:
A method for communicating messages at a user equipment, UE, in a Long Term Evolution, LTE, mobile communication system, the method comprising: receiving, by the UE, a paging message from a base station; transmitting, by the UE, a physical random access channel, PRACH, preamble to the base station; receiving, by the UE, an acknowledgement for the PRACH preamble from the base station through a downlink shared channel, DL_SCH; transmitting, by the UE, a connection request message for requesting a connection to the base station through an uplink shared channel, UL_SCH; and receiving, by the UE, a connection response message in response to the connection request message through the DL_SCH from the base station, wherein the acknowledgement for the PRACH preamble includes an identifier identifying the UE, and wherein the identifier is used by the UE to transmit the connection request message to the base station.