Patents by Inventor Yongzhi WU

Yongzhi WU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Discrete Fourier transform spread orthogonal time frequency space modulation method
    Patent number: 11671300
    Abstract: A discrete Fourier transform spread orthogonal time frequency space modulation method comprises the steps of performing DFT preceding processing and delay-Doppler domain mapping processing on the transmit data symbols, OTFS modulator, and performing delay-Doppler domain demapping processing and IDFT decoding processing on a received signal to realize demodulation; compared with the existing waveforms, including OFDM and DFT-s-OFDM, the proposed DFT-s-OTFS can reduce the bit error rate under high Doppler spread and the peak-to-average power ratio of the transmitted signal at the same time.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: June 6, 2023
    Assignee: SHANGHAI JIAOTONG UNIVERSITY
    Inventors: Chong Han, Yongzhi Wu
  • DISCRETE FOURIER TRANSFORM SPREAD ORTHOGONAL TIME FREQUENCY SPACE MODULATION METHOD
    Publication number: 20230016587
    Abstract: A discrete Fourier transform spread orthogonal time frequency space modulation method comprises the steps of performing DFT preceding processing and delay-Doppler domain mapping processing on the transmit data symbols, OTFS modulator, and performing delay-Doppler domain demapping processing and IDFT decoding processing on a received signal to realize demodulation; compared with the existing waveforms, including OFDM and DFT-s-OFDM, the proposed DFT-s-OTFS can reduce the bit error rate under high Doppler spread and the peak-to-average power ratio of the transmitted signal at the same time.
    Type: Application
    Filed: June 16, 2022
    Publication date: January 19, 2023
    Inventors: Chong HAN, Yongzhi WU