INTERFERENCE CANCELLATION METHOD AND APPARATUS, FILTER DEVICE

摘要

An interference cancellation method and apparatus and also a filter are disclosed to cancel the interfering signals leaked to the receiving channel, and enable the receiving channel to suppress the transmitted signal. The method includes: dividing a transmitted signal into a first transmitted signal and a second transmitted signal, and then inputting the first transmitted signal into a first transmitting filter and inputting the second transmitted signal into a second transmitting filter symmetric to the first transmitting filter; adjusting the first interfering signal and the second interfering signal to make opposite phases of the signals; and combining the signals of opposite phases. The method provided herein can cancel the interfering signals leaked to the receiving channel, the receiving channel suppresses the transmitted signal effectively, and the interference caused by the transmitted signal onto the received signal is cancelled.

主权项

1. An interference cancellation method, comprising:
dividing a transmitted signal into a first transmitted signal and a second transmitted signal, and then inputting the first transmitted signal into a first transmitting filter and inputting the second transmitted signal into a second transmitting filter symmetric to the first transmitting filter; adjusting a first interfering signal and a second interfering signal to obtain signals of opposite phases, wherein the first interfering signal comprises a signal leaked from the first transmitted signal to a receiving channel after the first transmitted signal flows through the first transmitting filter and a first receiving filter, the second interfering signal comprises a signal leaked from the second transmitted signal to the receiving channel after the second transmitted signal flows through the second transmitting filter and a second receiving filter, and the receiving channel is a channel for a receiver to receive signals; and combining the signals of opposite phases.