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Low latency signaling scheme for mode transition in DMT modems

  • US 20050271129A1
  • Filed: 12/15/2004
  • Published: 12/08/2005
  • Est. Priority Date: 06/08/2004
  • Status: Active Grant
First Claim
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1. A method for coordinating and synchronizing a mode transition in a Discrete Multi-Tone (DMT) communication system operating over a range of tones, the method comprising:

  • allocating a set of one or more of the tones in the range to serve as monitor tones for signaling the mode transition; and

    signaling the mode transition by transmitting a known transition sequence on the monitor tones over two or more successive symbol intervals while simultaneously transmitting data on at least some of the tones in the range other than the monitor tones.

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