Systems and methods for out-of band-interference mitigation
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United States of America Patent
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Oct 24, 2017
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app pub date -
Dec 14, 2016
filing date -
Dec 16, 2015
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Abstract
A system for interference mitigation including a transmit coupler that samples the RF transmit signal to create a sampled RF transmit signal; a transmit analog canceller that transforms the RF transmit signal to an RF interference cancellation signal, according to a first configuration state; a first receive coupler that combines the RF interference cancellation signal and the RF receive signal to generate a composite RF receive signal; a sampling analog canceller that transforms the RF transmit signal to a RF interference cancellation signal, according to a second configuration state; a cleaning coupler that combines the RF transmit signal and the second RF interference cancellation signal; a first frequency downconverter that converts the transmit signal to a BB transmit signal; a second frequency downconverter that converts the composite RF receive signal to a composite BB receive signal; an analog-to-digital converter that converts the transmit signal to a digital transmit signal.
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