Patent ID: 8305952
Filing Date: 2012-11-06
Classification: H04L,H04W

Abstract:
1. A feedback control method for channel quality information of a relay station (RS) in a wireless communication system including the relay station (RS), the method comprising: receiving, by the relay station (RS), total channel quality information from a mobile station (MS) via a first uplink channel resource area; when an optimized channel quality indicator (CQI) report indicator received from the mobile station (MS) is set to 1, receiving, by the relay station (RS), a plurality of delta information of the channel quality information from the mobile station (MS) via a second uplink channel resource area; transmitting, by the relay station (RS), at least one of the channel quality information and the plurality of delta information to a base station (BS) if values of the plurality of delta information are continuously smaller than a predetermined value for a predetermined duration of time; and acquiring, by the relay station (RS), control information by analyzing the at least one of the channel quality information and the plurality of delta information if the values of the plurality delta information are not continuously smaller than the predetermined value for the predetermined duration of time, wherein the mobile station (MS) communicates directly with the base station (BS) without passing data through the relay station (RS) if the values of the plurality of delta information are continuously smaller than the predetermined value for the predetermined duration of time.