Multicarrier modulation messaging for frequency domain received idle channel noise information

CAFC
  • US 7,835,430 B2
  • Filed: 06/03/2009
  • Issued: 11/16/2010
  • Est. Priority Date: 01/07/2000
  • Status: Expired due to Term
First Claim
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1. A transceiver capable of transmitting test information over a communication channel using multicarrier modulation comprising:

  • a transmitter portion capable of transmitting a message, wherein the message comprises one or more data variables that represent the test information, wherein bits in the message are modulated onto DMT symbols using Quadrature Amplitude Modulation (QAM) with more than 1 bit per subchannel and wherein at least one data variable of the one or more data variables comprises an array representing frequency domain received idle channel noise information.

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