Patents by Inventor Xiogang C. Chen

Xiogang C. Chen 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).

  • Systems and methods for uplink DMRS enhancement in FD-MIMO
    Patent number: 10708013
    Abstract: The present disclosure includes systems and methods for reducing intra-cell interference during uplink MU-MIMO. An uplink grant that allocates a plurality of resource blocks is obtained. A first portion of the plurality of RBs that are overlapping with a set of RBs granted to a second UE is determined. A second portion of the plurality of RBs that are non-overlapping with the set of RBs granted to the second UE is also determined. A first demodulation reference signal (DMRS) sequence is generated for the first portion of the plurality of RBs. A second DMRS sequence is generated for the second portion of the plurality of RBs, where the second DMRS sequence is different than the first DMRS sequence. An uplink transmission (e.g., PUCCH, PUSCH) is generated that includes RBs having different DMRS sequences.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 7, 2020
    Inventors: Yushu Zhang, Yuan Y. Zhu, Wenting Chang, Xiogang C. Chen, Qinghua Li
  • SYSTEMS AND METHODS FOR UPLINK DMRS ENHANCEMENT IN FD-MIMO
    Publication number: 20190020451
    Abstract: The present disclosure includes systems and methods for reducing intra-cell interference during uplink MU-MIMO. An uplink grant that allocates a plurality of resource blocks is obtained. A first portion of the plurality of RBs that are overlapping with a set of RBs granted to a second UE is determined. A second portion of the plurality of RBs that are non-overlapping with the set of RBs granted to the second UE is also determined. A first demodulation reference signal (DMRS) sequence is generated for the first portion of the plurality of RBs. A second DMRS sequence is generated for the second portion of the plurality of RBs, where the second DMRS sequence is different than the first DMRS sequence. An uplink transmission (e.g., PUCCH, PUSCH) is generated that includes RBs having different DMRS sequences.
    Type: Application
    Filed: March 30, 2016
    Publication date: January 17, 2019
    Applicant: INTEL CORPORATION
    Inventors: Yushu Zhang, Yuan Y. Zhu, Wenting Chang, Xiogang C. Chen, Qinghua Li