Patent ID: 8913680

Claim:
An interference alignment method comprising: obtaining a channel matrix in a multi-channel communication system; determining a first desired signal and a second desired signal of the multi-channel communication system according to the channel matrix, wherein interference alignment is implemented for the first desired signal by using a lattice construction manner and interference alignment is implemented for the second desired signal by using a beamforming manner; and obtaining precoding vectors and receive vectors such that at a receiver corresponding to the first desired signal, after a first receive signal is filtered by a receive vector corresponding to the first desired signal, a signal formed by superposing interference signals comprised therein has a feature of a lattice constellation pattern, and that at a receiver corresponding to the second desired signal, after a second receive signal is filtered by a receive vector corresponding to the second desired signal, interference signals comprised therein are canceled, wherein the first receive signal and the second receive signal are transmit signals sent to the corresponding receivers after precoding processing is performed at transmitters by using corresponding precoding vectors.