Patent ID: 8929355
Filing Date: 2015-01-06
Classification: H04B,H04W

Abstract:
1. A synchronization control method of a first terminal for transmission and reception of data in a cooperative communication system, the synchronization control method comprising: transmitting, to a second terminal and a third terminal, a first request frame and a second request frame that include information regarding points in time when a first response frame and a second response frame are to be transmitted by the second terminal and the third terminal, respectively; receiving the first response frame and the second response frame respectively transmitted by the second terminal and the third terminal at the points in time; estimating a first propagation delay time between the first terminal and the second terminal, and a second propagation delay time between the first terminal and the third terminal, based on times at which the first response frame and the second response frame are received by the first terminal; and transmitting, to the second terminal, a third request frame including information on a delay time difference between the first propagation delay time and the second propagation delay time.