Patent ID: 8493911

Claim:
A method of communicating data in wireless communication system, the method comprising: receiving, by a terminal, configuration information of a physical channel used for a transmission of a request message; receiving, by the terminal, information related to a prohibited condition for the transmission of request message, wherein the prohibited condition is associated with at least one of a time alignment timer, a particular timer that restricts a transmission of the request message, and a maximum number of request message transmissions, and wherein the at least one of time alignment timer is used for controlling an uplink time alignment; determining whether or not the request message is capable to transmit according to the received information; and performing, by the terminal, a next operation according to the determining step, wherein the next operation is to transmit the request message on the physical channel based on the received configuration information if the request message is capable to transmit, wherein the next operation is to transmit a random access preamble if the request message is not capable to transmit, and wherein the request message is a Scheduling Request (SR) message that is used to request an uplink radio resource.