FEED-FORWARD SELF-INTERFERENCE CANCELLATION

摘要

The present application describes a feed forward method that may electronically cancel self-interference while it is still in the transmit path. It may employ delay length matching for electronic cancellation over large bandwidths.

主权项

1. A feed-forward self-interference cancellation method, the method comprising:
receiving a transmit signal; sampling the transmit signal; amplifying the transmit signal; combining the sampled transmit signal with a sample of the amplified transmit signal; responsive to the combining, removing the transmit of the transmit signal and creating a self-interference sampled signal; and injecting the self-interference sampled signal with the amplified transmit signal to remove self-interference from the amplified transmit signal.