METHOD AND APPARATUS FOR PROCESSING SIGNAL INTERFERENCE

摘要

Embodiments of the present invention relate to a method and an apparatus for processing signal interference, including: splitting a first self-interference signal into at least two same sub self-interference signals, adjusting amplitudes and phases of the sub self-interference signals to obtain adjusted sub-signals, superposing the adjusted sub-signals and received signals, to obtain superposed sub-signals, filtering the superposed sub-signals by using filters of corresponding channels, to obtain wanted sub-signals, and merging each of the wanted sub-signals to obtain a complete wanted signal. Because received signals are separately filtered by using n different channels, it can be implemented that a self-interference signal can be effectively filtered out on each frequency band.

主权项

1. A method for processing signal interference, the method comprising:
splitting a low-power self-interference signal into at least two same sub self-interference signals; adjusting amplitudes and phases of the at least two same sub self-interference signals to obtain adjusted sub-signals, wherein an absolute value of a difference between an amplitude of a signal of a first frequency range of the adjusted sub-signals and an amplitude of a signal of the first frequency range of a second self-interference signal is less than an amplitude threshold, a phase of the signal of the first frequency range of the adjusted sub-signals is reverse to a phase of the signal of the first frequency range of the second self-interference signal, and an absolute value of a sum of the phases is less than a phase threshold; and the second self-interference signal is a high-power self-interference signal that is transmitted out and mixed with noise, and different adjusted sub-signals correspond to different first frequency ranges, wherein the low-power self-interference signal and the high-power self-interference signal are obtained by using a coupler for a first self-interference signal; superposing the adjusted sub-signals and a received signal, to obtain superposed sub-signals, wherein the received signal comprises a wanted signal and the second self-interference signal; filtering the superposed sub-signals by using filters of corresponding channels, to obtain wanted sub-signals, wherein a passband frequency range of the filters is the same as the first frequency range corresponding to the sub self-interference signals corresponding to the channels; and merging all the wanted sub-signals to obtain a complete wanted signal.