Patents by Inventor Wanfang ZHANG

Wanfang ZHANG 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).

  • Patent number: 10069545
    Abstract: Provided is a method for interference alignment applied to a multi-cell and multi-user Multiple Input Multiple Output (MIMO) system. The method includes that: a BS divides multiple users in a cell into a plurality of user groups, and notifies the multiple users of grouping information; and when one of the plurality of user groups is interfered by a neighbor cell, users in the one of the plurality of user groups cooperate with each other to perform interference alignment. The disclosure also provides a pre-coding method and system based on interference alignment. The disclosure, by means of grouping and cooperation of the users and designing of a receiving matrix of each user, achieves the effect of interference alignment in a signal transmission space of the BS.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: September 4, 2018
    Assignee: ZTE CORPORATION
    Inventors: Chaowei Wang, Nan Li, Wanfang Zhang, Cheng Wang, Xiao Zhang, Shuai Wang, Chen Huang
  • Publication number: 20160308590
    Abstract: Provided is a method for interference alignment applied to a multi-cell and multi-user Multiple Input Multiple Output (MIMO) system. The method includes that: a BS divides multiple users in a cell into a plurality of user groups, and notifies the multiple users of grouping information; and when one of the plurality of user groups is interfered by a neighbor cell, users in the one of the plurality of user groups cooperate with each other to perform interference alignment. The disclosure also provides a pre-coding method and system based on interference alignment. The disclosure, by means of grouping and cooperation of the users and designing of a receiving matrix of each user, achieves the effect of interference alignment in a signal transmission space of the BS.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 20, 2016
    Applicant: ZTE Corporation
    Inventors: Chaowei WANG, Nan LI, Wanfang ZHANG, Cheng WANG, Xiao ZHANG, Shuai WANG, Chen HUANG