Patent ID: 8150409

Claim:
A method of transmitting data via a downlink channel in a wireless relay system, the method comprising: transmitting a first ratio of first partial data of the data from a base station to a mobile station; transmitting a second ratio of second partial data of the data from the base station to a first relay station; and forwarding the second partial data from the first relay station to the mobile station, wherein the first ratio or the second ratio is determined based on any one of a channel capacity of a first link between the base station and the mobile station, and a channel capacity of a second link between the first relay station and the mobile station, and wherein the transmitting of the first partial data and the forwarding of the second partial data are simultaneously performed after transmitting the second partial data, wherein executing the transmitting the first partial data, the transmitting the second partial data, and forwarding the second partial data is when a distance between the mobile station and the base station in the wireless relay system is above a predetermined threshold and executing a different mode of transmitting when the distance between the mobile station and the base station in the wireless relay system is equal to or less than the predetermined threshold.