Signal canceling method and apparatus for wireless communication system

The present invention discloses a signal canceling method and apparatus in a wireless communication system, to wireless communications, the method comprising: a transmission signal is branched to give the main channel signal transmitted over the primary channel and the secondary channel transmission auxiliary channels in channel signal; the main channel signal and the secondary channel signals to perform digital channel characteristics matching processing, to obtain a primary channel characteristic matching signal and the sub channel characteristics match signal; a receiver coupled to the channel of said primary channel characteristics match signal and the secondary channel characteristics are merged matching signal, for canceling the signal. The present invention enables the common source different propagation canceling signal at the target point, the purpose of eliminating the leakage signal.