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Signal separation in an orthogonal time frequency space communication system using MIMO antenna arrays

  • US 10,020,854 B2
  • Filed: 12/09/2016
  • Issued: 07/10/2018
  • Est. Priority Date: 06/25/2012
  • Status: Active Grant
First Claim
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1. A communication device, comprising:

  • an antenna arrangement;

    a receiver configured to;

    receive, from the antenna arrangement, a plurality of pilot signals associated with respective locations in a time-frequency plane wherein the plurality of pilot signals were transmitted from a corresponding plurality of transmit antenna elements;

    receive signal energy transmitted by the plurality of transmit antenna elements;

    measure, based upon the plurality of pilot signals, a plurality of two-dimensional time-frequency coupling channels between the plurality of transmit antenna elements and the antenna arrangement; and

    invert a representation of each of the plurality of two-dimensional time-frequency coupling channels to provide a plurality of inverted channel representations.

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