COMMUNICATION TECHNIQUE FOR A REPEATER USING A TRANSMISSION INDICATOR

摘要

To prevent the self-interference of an inband relay node, a base station transmits a transmission indication on the downlink of a Un interface. Only when the base station receives an ACKnowledgment (ACK) signal in response to the transmission indication from the relay node, the base station transmits a Un interface downlink signal to the relay node in a specific time area. The time area allocated by the transmission indication may be a time area added to a statically allocated time area.