Patents by Inventor Daijun Zhang

Daijun 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).

  • Method, apparatus, receiver, computer program and storage medium for joint detection
    Patent number: 9287924
    Abstract: A method, apparatus, receiver, computer program and storage medium for joint detection are disclosed. The joint detection method includes categorizing interference signals based on level of interference so as to obtain a strong interference signal, cancelling the strong interference signal from a received signal, and performing a joint detection by utilizing a matched filtering result of a remaining signal.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: March 15, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Zhixun Tang, Xie Li, Liping Zhang, Daijun Zhang
  • Method, apparatus, receiver, computer program and storage medium for joint detection
    Patent number: 9065524
    Abstract: The present invention relates a method, apparatus, receiver, computer program for joint detection. In the method, it is firstly determined if whether a number of original active codes is beyond a predefined threshold or not, and when the number of the original active codes is beyond the predefined threshold and a strong interference code exists in the active codes corresponding to intra-frequency adjacent cells, it is to apply an interference cancellation to a receive signal, cancel MAI caused by a strong interference signal corresponding to the strong interference code, and perform a joint detection by utilizing a matched filtering result of a remaining signal after the interference cancellation for the joint detection. According to at least one embodiment of the present invention, when there is large interference in the intra-frequency adjacent cells and the number of the active codes is beyond a maximum threshold, the joint detection performance is improved.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: June 23, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Zhixun Tang, Xie Li, Liping Zhang, Daijun Zhang
  • Method, Apparatus, Receiver, Computer Program and Storage Medium for Joint Detection
    Publication number: 20140348136
    Abstract: A method, apparatus, receiver, computer program and storage medium for joint detection are disclosed. The joint detection method includes categorizing interference signals based on level of interference so as to obtain a strong interference signal, cancelling the strong interference signal from a received signal, and performing a joint detection by utilizing a matched filtering result of a remaining signal.
    Type: Application
    Filed: September 20, 2011
    Publication date: November 27, 2014
    Applicant: ST-ERICSSON SA
    Inventors: Zhixun Tang, Xie Li, Liping Zhang, Daijun Zhang
  • Method, Apparatus, Receiver, Computer Program and Storage Medium for Joint Detection
    Publication number: 20140294127
    Abstract: The present invention relates a method, apparatus, receiver, computer program for joint detection. In the method, it is firstly determined if whether a number of original active codes is beyond a predefined threshold or not, and when the number of the original active codes is beyond the predefined threshold and a strong interference code exists in the active codes corresponding to intra-frequency adjacent cells, it is to apply an interference cancellation to a receive signal, cancel MAI caused by a strong interference signal corresponding to the strong interference code, and perform a joint detection by utilizing a matched filtering result of a remaining signal after the interference cancellation for the joint detection. According to at least one embodiment of the present invention, when there is large interference in the intra-frequency adjacent cells and the number of the active codes is beyond a maximum threshold, the joint detection performance is improved.
    Type: Application
    Filed: October 14, 2011
    Publication date: October 2, 2014
    Applicant: ERICSSON MODEMS SA
    Inventors: Zhixun Tang, Xie Li, Liping Zhang, Daijun Zhang