Patents by Inventor Xinru ZHENG

Xinru ZHENG 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).

  • Pilot allocation method based on coherence time for large-scale MIMO system
    Patent number: 9912458
    Abstract: Disclosed is a pilot allocation method based on coherence time for a large-scale multiple input multiple-output (MIMO) system. The present invention achieves optimal allocation of pilot resources by fully utilizing the feature that different users possibly have different moving speeds and coherence time of corresponding channels is accordingly different, thereby improving overall data transmission performance of the system and achieving certain practicability. Moreover, the present invention effectively uses limited transmission resources in the case of limited total transmission resources, thereby improving overall data transmission performance of the system and effectively reducing pilot contamination.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: March 6, 2018
    Assignee: SOUTHEAST UNIVERSITY
    Inventors: Hua Zhang, Xinru Zheng, Wei Xu
  • PILOT ALLOCATION METHOD BASED ON COHERENCE TIME FOR LARGE-SCALE MIMO SYSTEM
    Publication number: 20170264410
    Abstract: Disclosed is a pilot allocation method based on coherence time for a large-scale multiple input multiple-output (MIMO) system. The present invention achieves optimal allocation of pilot resources by fully utilizing the feature that different users possibly have different moving speeds and coherence time of corresponding channels is accordingly different, thereby improving overall data transmission performance of the system and achieving certain practicability. Moreover, the present invention effectively uses limited transmission resources in the case of limited total transmission resources, thereby improving overall data transmission performance of the system and effectively reducing pilot contamination.
    Type: Application
    Filed: December 29, 2014
    Publication date: September 14, 2017
    Applicant: SOUTHEAST UNIVERSITY
    Inventors: Hua ZHANG, Xinru ZHENG, Wei XU