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Method for Robust Crosstalk Precoder Training in Channels with Impulse Noise

  • US 20110007788A1
  • Filed: 07/06/2010
  • Published: 01/13/2011
  • Est. Priority Date: 07/10/2009
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a first transceiver at a central office (CO) coupled to a second transceiver at a customer premise equipment (CPE) via a digital subscriber line (DSL);

    a crosstalk precoder coupled to the first transceiver at the CO; and

    a vectoring control entity (VCE) coupled to the first transceiver via a feedback channel and to the crosstalk precoder,wherein the second transceiver comprises a noise monitor configured to detect non-crosstalk noise in a downstream signal from the CO to the CPE, andwherein the first transceiver is configured to receive a predefined special feedback signal from the second transceiver that indicates whether non-crosstalk noise is detected in the downstream signal instead of a measured error value.

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