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Modulation and equalization in an orthonormal time-frequency shifting communications system

  • US 9,548,840 B2
  • Filed: 05/20/2015
  • Issued: 01/17/2017
  • Est. Priority Date: 05/28/2010
  • Status: Active Grant
First Claim
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1. A method of providing a modulated signal useable in a signal transmission system, the method comprising:

  • establishing an original data frame having a first dimension defined by a first plurality of elements and a second dimension defined by a second plurality of elements;

    transforming the original data frame in accordance with a time-frequency transformation so as to provide a transformed data matrix wherein the time-frequency transformation is performed using a time-frequency shifting matrix wherein the time-frequency shifting matrix is of a first dimension having N elements and of a second dimension having M elements, where N and M are greater than one; and

    generating the modulated signal in accordance with elements of the transformed data matrix.

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