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Full duplex using OAM

  • US 10,439,287 B2
  • Filed: 12/19/2018
  • Issued: 10/08/2019
  • Est. Priority Date: 12/21/2017
  • Status: Active Grant
First Claim
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1. A system for providing full-duplex communications, comprising:

  • a first transceiver for transmitting first signals on a first channel and receiving second signals on a second channel at a same time, the first transceiver further comprising;

    first signal processing circuitry for receiving first input data and modulating the first input data onto a first carrier signal for transmission and for demodulating a second carrier signal into first output data;

    first orthogonal function processing circuitry for applying a first orthogonal function of a plurality of orthogonal functions to the first carrier signal and for removing a second orthogonal function of the plurality of orthogonal functions from the second carrier signal;

    first full duplex processing circuitry for transmitting the first carrier signal having the first orthogonal function applied thereto on the first channel at the same time the second carrier signal including the second orthogonal function is being received on the second channel;

    a first patch antenna array for transmitting the first carrier signal on the first channel;

    a second patch antenna array for receiving the second carrier signal on the second channel;

    wherein each of the first and second patch antenna arrays comprise first and second multilevel patch antenna arrays respectively, each layer including a plurality of patch antennas thereon, each of the plurality of patch antennas on a layer having a different phase applied thereto;

    a second transceiver for transmitting the second signals on the second channel and receiving the first signals on the first channel at the same time, the second transceiver further comprising;

    second signal processing circuitry for receiving second input data and modulating the second input data onto the second carrier signal for transmission and for demodulating the first carrier signal into second output data;

    orthogonal function processing circuitry for applying the second orthogonal function of the plurality of orthogonal functions to the second carrier signal and for removing the first orthogonal function of the plurality of orthogonal functions from the first carrier signal;

    full duplex processing circuitry for transmitting the second carrier signal having the second orthogonal function applied thereto on the second channel at the same time the first carrier signal including the first orthogonal function is being received on the first channel;

    a third patch antenna array for transmitting the second carrier signal on the second channel;

    a fourth patch antenna array for receiving the first carrier signal on the first channel;

    wherein each of the third and fourth patch antenna arrays comprise third and fourth multilevel patch antenna array respectively, each layer including a plurality of patch antennas thereon, each of the plurality of patch antennas on a layer having a different phase applied thereto; and

    wherein the first channel having the first orthogonal function applied thereto and the second channel having the second orthogonal function applied thereto do not interfere with each other enabling full duplex transmissions between the first transceiver and the second transceiver.

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