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Method and system for reducing transceiver power via a variable signal constellation

  • US 8,218,567 B2
  • Filed: 09/21/2007
  • Issued: 07/10/2012
  • Est. Priority Date: 03/12/2007
  • Status: Active Grant
First Claim
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1. A method, the method comprising:

  • performing using one or more circuits and/or processors in an Ethernet-over-twisted-pair PHY, said Ethernet-over-twisted-pair PHY being coupled to a link partner via a plurality of twisted pairs;

    determining, based on one or more signals, one or both of;

    a current state of a link between said Ethernet-over-twisted-pair PHY and said link partner; and

    resources available to said Ethernet-over-twisted-pair PHY; and

    varying a number of constellation points utilized by said Ethernet-over-twisted-pair PHY for communicating over said plurality of twisted-pairs based on said determination, wherein;

    said number of constellation points is varied while continuing to communicate over each of said plurality of twisted pairs; and

    said number of constellation points is varied while a symbol rate at which said Ethernet-over-twisted-pair PHY remains unchanged.

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