Patent ID: 9276682
Filing Date: 2016-03-01
CPC Classification: H04B,H04L

Claim Text:
1. A system for multi-rate digital self-interference cancellation comprising: a signal component generation system coupled to a digital transmit signal of a communication system that generates a set of signal components from the digital transmit signal; wherein the signal component generation system comprises a set of transform paths; wherein each transform path comprises a component generator and an anti-aliasing filter; wherein a majority of the set of transform paths further comprise an upsampler, a downsampler, and a signal multiplier; wherein signal multipliers couple transform paths to at least one other transform path; a multi-rate adaptive filter that transforms the set of signal components into a digital self-interference cancellation signal according to a transform configuration, wherein the digital self-interference cancellation signal is combined with a receive signal of the communication system to form an interference-reduced receive signal; and a transform adaptor that dynamically sets the transform configuration in response to changes in the interference-reduced receive signal.