Patent ID: 8218461

Claim:
An upper node operation method in a wireless communication system using a relay service, the method comprising the steps of: receiving a desired Relay Station Transmit/receive Transition Gap (RSTTG) and a desired Relay Station Receive/transmit Transition Gap (RSRTG) from a lower Relay Station (RS) during capability negotiation between the lower RS and the upper node for the relay service; determining, by the upper node, an RSTTG and an RSRTG using the desired RSTTG and the desired RSRTG during capability negotiation between the lower RS and the upper node for the relay service; and sending a control message having the RSTTG and the RSRTG to the lower RS, after determining the RSTTG and the RSRTG during the capability negotiation between the lower RS and the upper node for the relay service; wherein the RSTTG denotes a Transmit (Tx) mode to Receive (Rx) mode turnaround gap for the lower RS, and the RSRTG denotes an Rx mode to Tx mode turnaround gap for the lower RS.