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

  • US 10,567,125 B2
  • Filed: 07/24/2018
  • Issued: 02/18/2020
  • Est. Priority Date: 05/28/2010
  • Status: Active Grant
First Claim
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1. A method for wireless communication, comprising:

  • transforming a data frame with N2 data symbols into a time frequency shifted (TFS) data matrix with N2 elements, wherein each of the N2 elements carries information corresponding to all N2 data symbols;

    generating, based on a feedback signal, a pre-equalized TFS data matrix by performing a pre-equalization operation on the TFS data matrix;

    generating N composite waveforms based on modulating each column of the pre-equalized TFS data matrix; and

    transmitting each of the N composite waveforms as a pre-equalized orthonormal time frequency space (OTFS) signal.

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