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Interference cancellation in multi-mode radio access technology devices

  • US 9,014,651 B2
  • Filed: 09/10/2012
  • Issued: 04/21/2015
  • Est. Priority Date: 09/10/2012
  • Status: Expired due to Fees
First Claim
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1. A method for reducing interference in a receiver, comprising:

  • receiving a first signal, wherein the first signal includes a desired signal and an undesired signal that results from an interfering signal being applied to a first path;

    generating a second signal, wherein generating the second signal comprises applying the interfering signal to a second path;

    processing the second signal to generate a third signal, including adjusting the second signal based on a difference between a first transfer function of the first path and a second transfer function of the second path;

    subtracting the third signal from the first signal to reduce the undesired signal in the first signal;

    collecting measurements and statistics relating to the first signal and the third signal; and

    multiplying the third signal by a weighted value, to the subtracting the third signal from the first signal, wherein the weighted value is calculated based on the collected measurements and statistics.

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