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CONTENTION-BASED ACCESS TO TONES IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) WAVEFORM

  • US 20070110096A1
  • Filed: 02/09/2007
  • Published: 05/17/2007
  • Est. Priority Date: 02/06/1995
  • Status: Abandoned Application
First Claim
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1. A multiple access method for a remote unit of a multi-point to point communication system, the method comprising:

  • modulating one or more tones of an orthogonal frequency division multiplexing waveform with the upstream information based on an inverse Fourier transform algorithm;

    transmitting the one or more tones to a multi-point-to-point host unit;

    detecting a collision of the one or more tones; and

    when a collision is detected, re-transmitting the one or more tones.

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