Data transmitting and receiving apparatus and method in a communication system

The present invention is the base station to the relay signal using the device is a base station signal and the relay signal receiving and measuring the signal strength of the base station signal and the RS signal and the measured repeater signal strength and base station signal strength in a communication system signal determines whether the action of the interference, and the repeater signal that the base station signal transmitted whether acts as interference to a repeater in communication with the terminal, using a resource allocation scheme assigned by the repeater receives data. The relay communication system, a repeater, a base station signals, signal repeaters