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SYSTEMS AND METHODS FOR ACTIVE INTERFERENCE CANCELLATION TO IMPROVE COEXISTENCE

  • US 20140099893A1
  • Filed: 10/04/2012
  • Published: 04/10/2014
  • Est. Priority Date: 10/04/2012
  • Status: Active Grant
First Claim
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1. A method for providing active interference cancellation between a Bluetooth transmit chain and a wireless local area network (WLAN) receive chain, comprising sampling a signal from the Bluetooth transmit chain, generating a plurality of quadrature components of the sampled signal with a polyphase filter quadrature radio-frequency (RF) phase shifter, and adjusting a phase of the sampled signal by weighting and combining the plurality of quadrature components to create an output signal.

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