METHOD FOR TRANSMITTING REFERENCE SIGNALS FOR RELAY NODE

摘要

PURPOSE: A reference signal transmission method is provided to use a relay while maintaining the compatibility with an existing LTE(Long Term Evolution) system and enable the relay to transmit a broadband reference signal. CONSTITUTION: A signal for representing the transmission of a second reference signal for a relay is transmitted to a terminal by using a reference signal resource for at least one antenna port among a first reference signal which is transmitted from a base station. The relay transmits the second reference signal to the terminal in a subframe where the base station and the relay transmit a signal at the same time. The second reference signal comprises the reference signal about data which the relay transmits. When the second reference signal includes the reference signal, the reference signal about the data is transmitted with a form of a dedicated reference signal.