Patent ID: 8615199

Claim:
A method of transmitting an interference information signal in a wireless communication system, the method comprising the steps of: receiving, by a base station, a neighbor sounding signal in a plurality of subbands from a first mobile station that is served by a neighbor cell, each subband including a plurality of subcarriers; receiving, by the base station, a serving sounding signal in the plurality of subbands from a second mobile station that is served by a serving cell; selecting, by the base station, a subband from the plurality of subbands based on an interference determined based on the serving sounding signal and the neighbor sounding signal; and transmitting, by the base station, the interference information signal in the selected subband to the neighbor cell, wherein the neighbor sounding signal and the serving sounding signal are received at subcarriers having indexes satisfying: k mod D=d where 1≦k≦N, N denotes a total number of subcarriers of the plurality of subbands, D denotes a decimation value and d denotes a starting offset, and wherein the neighbor sounding signal and the serving sounding signal have a different value of at least one of D and d.