METHOD FOR AVOIDING INTER-CELL INTERFERENCE IN WIRELESS ACCESS SYSTEM

摘要

According to the disclosure of the present invention, provided is a method for operating a relay node (RN) to avoid an inter-cell interference (ICI) in a wireless access system. The method includes: overhearing the downlink signal transmitted by a plurality of base stations to terminals within the coverage area of each base station in an nth subframe; decoding the overheard downlink signal from an n+1th subframe to an n+3th subframe and sharing the RN through the plurality of base stations; overhearing the reply to the downlink signal transmitted by the terminals to each base station in an n+4th subframe; reallocating a resource block allocated to the terminals in the nth subframe if there is at least one negative reply NACK in the replies to the downlink signal transmitted by the terminals; and transmitting control information representing the reallocated resource block to each base station.