DIGITAL INTERFERENCE CANCELLATION APPARATUS AND METHOD FOR WIRELESS FULL DUPLEX SYSTEM AND TRANSCEIVER

摘要

Disclosed is a digital interference cancellation apparatus, comprising: a first interference cancellation module which receives a digital transmitting signal output by a transceiver as a digital baseband reference signal, wherein the digital baseband reference signal is used to reconstruct a first self-interference signal, and a digital receiving signal received from the transceiver minus the first self-interference signal results in a digital receiving signal after first level interference cancellation; and a second interference cancellation module which receives a digital transmitting signal output by a transceiver as a digital baseband reference signal, wherein the digital baseband reference signal is used to reconstruct a second self-interference signal, and the digital receiving signal after first level interference cancellation minus the second self-interference signal results in the digital receiving signal after second level interference cancellation. Also disclosed are a digital interference cancellation method, a wireless full duplex system and a transceiver. A self-interference signal in a digital receiving signal can be cancelled effectively in a complicated communication environment by using the embodiments of the present invention.