×

Systems and methods for phase noise mitigation

  • US 9,755,692 B2
  • Filed: 05/05/2015
  • Issued: 09/05/2017
  • Est. Priority Date: 08/14/2013
  • Status: Active Grant
First Claim
Patent Images

1. A system for phase noise mitigated communication comprising:

  • a primary transmitter, coupled to a digital transmit path of an electronic device, that converts a digital transmit signal received via the digital transmit path to an analog transmit signal, and transmits the analog transmit signal via an analog transmit path;

    a primary receiver, coupled to a digital receive path of the electronic device, that receives an analog receive signal via an analog receive path, and converts the analog receive signal to a digital receive signal;

    an analog self-interference canceller, coupled to the analog receive path and the analog transmit path;

    wherein the analog self-interference canceller samples the analog transmit signal, generates an analog self-interference cancellation signal based on the analog transmit signal, and combines the analog self-interference cancellation signal with the analog receive signal; and

    a digital self-interference canceller, comprising an embedded pilot analyzer that detects an embedded pilot in the digital receive signal and analyzes the embedded pilot to determine phase noise data, the digital self-interference canceller coupled to the digital transmit path and the digital receive path;

    wherein the phase noise data is partially based on a self-interference component of the digital receive signal;

    wherein the digital self-interference canceller samples the digital transmit signal, generates a digital self-interference cancellation signal based on the digital transmit signal, and combines the digital self-interference cancellation signal with the digital receive signal;

    wherein the digital self-interference canceller generates the digital self-interference cancellation signal according to a digital transform configuration;

    wherein the digital self-interference canceller adapts the digital transform configuration based on the phase noise data.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×