Patent ID: 8542628

Claim:
An operation method for a Relay Station (RS) in a relay wireless communication system, the method comprising: identifying a signal delay time with an upper node; determining a transmission/reception operation transition time through a negotiation with the upper node; identifying an idle time; determining an overhead caused by a transmission/reception operation transition with consideration of a start time point of an Uplink (UL) subframe of the RS dependent on the signal delay time, the transmission/reception operation transition time, and the idle time; and performing communication considering the overhead, wherein the start time point of the UL subframe of the RS is set earlier than a start time point of a UL subframe of the upper node with consideration of the idle time, and wherein the idle time represents an interval existing between a Downlink (DL) subframe of the RS and the UL subframe of the RS for synchronization between a frame of the upper node and a frame of the RS.