Patent ID: 8848596

Claim:
A backhaul timing control method, comprising: delaying, at a relay, timing of a transmission sub-frame by a predetermined time over timing of a reception sub-frame; transmitting, at a relay, a control signal to a user equipment during a control symbol period of a sub-frame; and setting, at the relay, a data starting point of the sub-frame after a switching gap (SG 1 ) which is a time for switching from a transmission mode to a reception mode to receive backhaul data of a base station during backhaul symbol periods, wherein a sum of lengths of the SG 1 and a switching gap (SG 2 ), which is a time for switching the reception mode to the transmission mode, is shorter than a length of a symbol (Ln) having a normal cyclic prefix (CP), and wherein the length of the SG 2 is identical to or shorter than the length of the SG 1 and each length of the SG 1 and the SG 2 is longer than a length of the CP.