Patent ID: 7768984

Claim:
A method for receiving a signal in a signal reception apparatus, comprising: receiving, from a serving base station, information regarding a first modulation scheme applied to a frequency domain in the serving base station; receiving a signal of the frequency domain; demodulating the received signal using the first modulation scheme information, the demodulated signal including traffic data and a pilot signal; generating channel state information using the pilot signal; setting a second modulation scheme by estimating the second modulation scheme applied to the frequency domain in at least one neighbor base station from the demodulated signal; and selecting whether to use interference cancellation based on the channel state information, a first weight according to the first modulation scheme and a second weight according to the second modulation scheme, and according to a condition defined by the following equation: ∑ j = 1 2 ⁢  h i , j  2 β i ⁢ k i ⁢ ON ≥ < OFF ⁢ ∑ j = 1 2 ⁢  h s , j  2 β s ⁢ k s , where s is an index of a signal of the frequency domain transmitted from the serving base station, i is an index of a signal of the frequency domain transmitted from the at least one neighbor base station, j is an index of a receive antenna provided in the signal reception apparatus, k is modulation order representing a modulation scheme, h is a channel response, β is a weight assigned to select whether to use the interference cancellation while considering the modulation order, ON indicates that use of the interference cancellation is selected if an associated condition is satisfied, and OFF indicates that the use of the interference cancellation is not selected if an associated condition is satisfied.