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SELF-INTERFERENCE CANCELLATION

  • US 20170187513A9
  • Filed: 08/11/2014
  • Published: 06/29/2017
  • Est. Priority Date: 02/03/2011
  • Status: Active Application
First Claim
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1. A wireless communication system comprising:

  • a transmit path adapted to transmit a transmit signal;

    a receive path adapted to receive a receive signal;

    an analog interference cancellation circuit coupled to the transmit path and adapted to remove a first portion of a self-interference signal from the receive signal, the analog cancellation circuit comprising a plurality of delay paths each including a delay element and a variable attenuator; and

    a controller adapted to dynamically vary an attenuation value applied to each of the plurality of variable attenuators in accordance with a frequency response characteristics of the attenuator.

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