Patents by Inventor Tingting ZOU

Tingting ZOU 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).

  • Linear equalization method and device for OTFS systems
    Patent number: 12088438
    Abstract: Disclosed is a low-complexity linear equalization method for an Orthogonal Time Frequency Space (OTFS) system. The method may include: receiving a time domain signal passing through a linear time-varying (LTV) channel; sampling the time domain signal to obtain a sampled signal; demodulating the sampled signal to obtain a demodulated signal; performing a Symplectic Finite Fourier Transform (SFFT) on the demodulated signal to obtain a sampled delay-Doppler domain signal; determining an effective channel matrix in a delay-Doppler domain under a restriction of a rectangular window according to a time domain channel matrix; determining a linear equalization matrix according to the effective channel matrix; and equalizing the sampled delay-Doppler domain signal in a low-complexity way according to the linear equalization matrix. The disclosure also discloses a linear equalization device of an OTFS system for realizing the linear equalization method and a computer-readable storage medium.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: September 10, 2024
    Assignee: Beijing University of Posts and Telecommunications
    Inventors: Wenjun Xu, Tingting Zou, Hui Gao, Zhisong Bie, Ping Zhang, Fengyu Wang, Jiaru Lin
  • Linear Equalization Method and Device for OTFS Systems
    Publication number: 20220182265
    Abstract: Disclosed is a low-complexity linear equalization method for an Orthogonal Time Frequency Space (OTFS) system. The method may include: receiving a time domain signal passing through a linear time-varying (LTV) channel; sampling the time domain signal to obtain a sampled signal; demodulating the sampled signal to obtain a demodulated signal; performing a Symplectic Finite Fourier Transform (SFFT) on the demodulated signal to obtain a sampled delay-Doppler domain signal; determining an effective channel matrix in a delay-Doppler domain under a restriction of a rectangular window according to a time domain channel matrix; determining a linear equalization matrix according to the effective channel matrix; and equalizing the sampled delay-Doppler domain signal in a low-complexity way according to the linear equalization matrix. The disclosure also discloses a linear equalization device of an OTFS system for realizing the linear equalization method and a computer-readable storage medium.
    Type: Application
    Filed: February 24, 2022
    Publication date: June 9, 2022
    Applicant: Beijing University of Posts and Telecommunications
    Inventors: Wenjun XU, Tingting ZOU, Hui GAO, Zhisong BIE, Ping ZHANG, Fengyu WANG, Jiaru LIN