Patent ID: 8472869

Claim:
A method of performing relay communication in a next generation cellular communication system including a base station and a plurality of terminals, a communication target terminal which has not acquired a Line-Of-Sight (LOS) channel with the base station performing communication through a relay of a relaying terminal which has acquired a LOS channel with the base station, the method comprising: a first step of the base station determining the relaying terminal which has acquired a LOS channel with both the base station and communication target terminal and is in an idle communication state with respect to the base station; a second step of the relaying terminal determined at the first step forming a relaying terminal group by determining one or more relaying assistant terminals which have acquired a LOS channel with the relaying terminal; a third step of the communication target terminal forming a transmitting/receiving terminal group by determining one or more transmitting/receiving assistant terminals which have acquired a LOS channel with both the communication target terminal and the relaying terminal group; and a fourth step of the relaying terminal performing multiple-input multiple-output of a relay link between the base station and the communication target terminal through the relaying assistant terminals and the transmitting/receiving assistant terminals.