Patents by Inventor Xiaobei LIU

Xiaobei LIU 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).

  • Publication number: 20240291694
    Abstract: An OFDM receiver has a first, pilot-aided channel estimation block, an output of which is provided, along with the received signal, to a first equaliser block. An output of the first equaliser block is provided, along with the received signal, to a second, data-aided channel estimation block. An output of the second channel estimation block is provided, along with the output of the first equaliser block and the received signal, to an adjustable interference cancellation block. The output of the interference cancellation block and the output of the second channel estimation block are provided to a second equaliser block. An output of the second equaliser block is provided to a de-mapping block, and is provided to the second channel estimation block and the interference cancellation block, for allowing an iterative repetition of second channel estimation, interference cancellation and second equalisation for a received signal.
    Type: Application
    Filed: June 20, 2022
    Publication date: August 29, 2024
    Inventors: Xiaobei Liu, Yujie Liu, Yong Liang Guan, David Gonzalez Gonzalez
  • Patent number: 11943081
    Abstract: There is provided a method of receiving a transmitted signal over a time-varying channel. The method includes: obtaining a received symbol signal in frequency domain based on the transmitted signal; performing a first channel estimation based on the received symbol signal to obtain a plurality of first estimated BEM coefficients; performing a first equalization based on the received symbol signal and the plurality of first estimated BEM coefficients to obtain a plurality of first detected source symbols; and performing one or more rounds of a second channel estimation and a second equalization.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: March 26, 2024
    Assignees: Nanyang Technological University, Southwest Jiaotong University
    Inventors: Xiaobei Liu, Kushal Anand, Yong Liang Guan, Pingzhi Fan
  • Publication number: 20220368569
    Abstract: There is provided a method of receiving a transmitted signal over a time-varying channel. The method includes: obtaining a received symbol signal in frequency domain based on the transmitted signal; performing a first channel estimation based on the received symbol signal to obtain a plurality of first estimated BEM coefficients; performing a first equalization based on the received symbol signal and the plurality of first estimated BEM coefficients to obtain a plurality of first detected source symbols; and performing one or more rounds of a second channel estimation and a second equalization.
    Type: Application
    Filed: October 22, 2020
    Publication date: November 17, 2022
    Inventors: Xiaobei LIU, Kushal ANAND, Yong Liang GUAN, Pingzhi FAN