Patent ID: 8761077

Claim:
A method of transmitting a control signal of a relay station, the method comprising: receiving, by the relay station, a control signal and data from a base station in a first subframe; and transmitting, by the relay station, an acknowledgement/negative acknowledgement (ACK/NACK) signal for the data to the base station in a second subframe, wherein a radio resource for transmitting the ACK/NACK signal is determined by a radio resource to which the control signal received in the first subframe is allocated and by a logical physical uplink control channel (PUCCH) index received by using a higher layer signal, wherein the logical PUCCH index is allocated first to a PUCCH resource allocated to a macro user equipment coupled to the base station, is allocated second to a PUCCH resource allocated to an Semi-Persistent Scheduling (SPS) ACK/NACK and scheduling request signal resource allocated to the relay station, and is allocated third to a PUCCH resource allocated to a dynamic ACK/NACK resource allocated to the relay station, and wherein the logical PUCCH index indicates the dynamic ACK/NACK resource allocated to the relay station directly or indicates the dynamic ACK/NACK resource allocated to the relay station by the offset value with respect to the logical PUCCH index value transmitted to the macro user equipment.