Circuits and methods for performing self-interference cancelation in full-duplex transceivers

A full duplex transceiver comprising:

• a transmitter section that includes an analog portion having analog baseband signals and a digital portion having digital baseband signals;
• a receiver section that includes an analog portion having analog baseband signals and a digital portion having digital baseband signals;
• an analog self-interference canceller that, in response to the analog baseband signals in the analog portion of the transmitter section, produces analog cancellation signals that cancel first self-interference in the analog baseband signals in the analog portion of the receiver section;
• and
• a digital self-interference canceller that, in response to the digital baseband signals in the digital portion of the transmitter section, produces digital cancellation signals that cancel second self-interference in the digital baseband signals in the digital portion of the receiver section, wherein the digital self-interference canceller performs a non-linear tapped delay line function on the digital baseband signals in the digital portion of the transmitter section to produce the digital cancellation signals.