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ECHO CANCELLATION IN COMMUNICATION TRANSCEIVERS

  • US 20150244450A1
  • Filed: 11/04/2013
  • Published: 08/27/2015
  • Est. Priority Date: 11/15/2012
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • in a transceiver, receiving from a repeater a received signal, which comprises a desired signal for reception and an undesired replica of a transmitted signal that was transmitted from the transceiver and retransmitted by the repeater;

    generating in the transceiver a local copy of the transmitted signal;

    matching the local copy with the undesired replica of the transmitted signal in the received signal, by adapting the received signal while retaining the local copy non-adaptive; and

    canceling an interference caused by the undesired replica to the desired signal, by subtracting the local copy from the adapted received signal.

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