METHOD OF PERFORMING HARQ FOR RELAY STATION

摘要

PURPOSE: A method for performing HARQ for a repeater station is provided to perform HARQ at a repeater station by maintaining compatibility with the existing synchronous HARQ. CONSTITUTION: Data is transmitted or re-transmitted to a fixed first transfer interval. An ACK(ACKnowledgement)/NACK(Negative-acknowledgement) signal concerning the data is received in a variable second transfer interval. A repeater station transmits or re-transmits the data to a base station. The first transfer interval is the same as the HARQ cycle of the repeater station which performs HARQ and the terminal. The information on the second transfer interval is received from the base station. The variable information of the second transfer interval is predetermined. A relay station receives a scheduling message from a base station during the sub frame 1(710) in frame 0.