Patents by Inventor Kefei MA

Kefei MA 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).

  • System and method using 5G positioning with non-line of sight information from sensors utilizing transmission and reception points and sounding reference signals
    Patent number: 12666391
    Abstract: A system using positioning with non-line of sight information from sensors is provided. The system includes a plurality of TRPs, a UE, and a backend server. The TRPs are distributed in a target region. The UE is placed within the target region and the UE comprises at least one sensor for gathering surrounding information at the target region. The backend server comprises a signal receiver, a positioning module, a signal emitter, and a feedback module. The signal receiver is configured to receive first SRSs. The positioning module is configured to compute a preliminary location of the UE according to the first SRS signals. The signal emitter sends a location signal containing the preliminary location of the UE to the UE. The feedback module is configured to receive second SRSs and NLOS information from the UE and to generate at least one positioning estimation result by positioning the UE.
    Type: Grant
    Filed: March 18, 2024
    Date of Patent: June 23, 2026
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Yaocheng Liang, Ho Man Cheng, Haiming Zhang, Yau Yau Yolanda Tsang, Kefei Ma, Xinyi Liu, Yuxian Zhang
  • SYSTEM AND METHOD USING 5G POSITIONING WITH NON-LINE OF SIGHT INFORMATION FROM SENSORS
    Publication number: 20250294516
    Abstract: A system using positioning with non-line of sight information from sensors is provided. The system includes a plurality of TRPs, a UE, and a backend server. The TRPs are distributed in a target region. The UE is placed within the target region and the UE comprises at least one sensor for gathering surrounding information at the target region. The backend server comprises a signal receiver, a positioning module, a signal emitter, and a feedback module. The signal receiver is configured to receive first SRSs. The positioning module is configured to compute a preliminary location of the UE according to the first SRS signals. The signal emitter sends a location signal containing the preliminary location of the UE to the UE. The feedback module is configured to receive second SRSs and NLOS information from the UE and to generate at least one positioning estimation result by positioning the UE.
    Type: Application
    Filed: March 18, 2024
    Publication date: September 18, 2025
    Inventors: Yaocheng LIANG, Ho Man CHENG, Haiming ZHANG, Yau Yau Yolanda TSANG, Kefei MA, Xinyi LIU, Yuxian ZHANG