Patent ID: 8503385

Claim:
A method of transmitting an uplink scheduling request in a mobile communication system, the method comprising the steps of: transmitting, by a terminal, a scheduling request to a radio resource controlling node to request the radio resource controlling node to allocate radio resources for transmitting uplink data or uplink control signals, if the uplink data or the uplink control signals are generated from an upper layer; receiving, by the terminal, scheduling information from the radio resource controlling node over a resource grant channel after transmitting the scheduling request, and determining whether resource allocation information is included in the scheduling information; comparing, by the terminal, a lowest priority for permitting transmission of the scheduling request notified from the radio resource controlling node with a highest priority among service priorities corresponding to the uplink data or the uplink control signals, if the resource allocation information is not included in the scheduling information; and retransmitting, by the terminal, the scheduling request to the radio resource controlling node, when the highest priority is greater than or equal to the lowest priority for permitting transmission of the scheduling request notified from the radio resource controlling node.