Patent ID: 8542697

Claim:
A method of transmitting data in a wireless communication system, the method comprising: transmitting, by a base station (BS), downlink scheduling information regarding downlink radio resource allocation and uplink scheduling information regarding uplink radio resource allocation to a user equipment (UE) on a downlink control channel, the uplink scheduling information including a downlink transmission indicator indicating whether the downlink scheduling information is transmitted or not; transmitting, by the BS, downlink data to the UE on a downlink data channel based on the downlink scheduling information; detecting, by the BS, a first transmission error in the uplink scheduling information by determining whether expected control signals, including an acknowledgement (ACK)/negative-acknowledgement (NACK) signal corresponding to the downlink data, are detected from an uplink data channel based on the uplink scheduling information or not; and if the expected control signals are not detected from the uplink data channel, detecting, by the BS, a second transmission error in the downlink scheduling information by determining whether the expected control signals, including the ACK/NACK signal corresponding to the downlink data, are detected from an uplink control channel.