Patents by Inventor Young-Kill KIM

Young-Kill KIM 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: 11871366
    Abstract: A test device may be a portable test device that can perform over the air measurements to determine synchronization errors between clusters in a cellular network. The test device can generate a graphical user interface that can show a map of the boundary area between clusters, locations of base stations hi the boundary area, locations where over the air measurements were taken by the test device, an indication of whether cells are in synchronization for each measurement location, and a table of actual measurements and derived parameters pertaining to cell phase synchronization, interference and other performance metrics.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: January 9, 2024
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Jong-Min Kim, Young-Kill Kim, Hyuck-In Kwon, Yoo-Chul Shin, Jae-Gab Lee
  • Publication number: 20230189170
    Abstract: A test device may be a portable test device that can perform over the air measurements to determine synchronization errors between clusters in a cellular network. The test device can generate a graphical user interface that can show a map of the boundary area between clusters, locations of base stations in the boundary area, locations where over the air measurements were taken by the test device, an indication of whether cells are in synchronization for each measurement location, and a table of actual measurements and derived parameters pertaining to cell phase synchronization, interference and other performance metrics.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 15, 2023
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Jong-Min KIM, Young-Kill Kim, Hyuck-In Kwon, Yoo-Chul Shin, Jae-Gab Lee
  • Publication number: 20230133796
    Abstract: A test device is operable to detect interference in a time division duplex (TDD) cellular network. The test device can automatically detect a TDD frame structure of RF signals received over the air Eagle Eye from a cell site. The test device determines a transition period between uplink (UL) and downlink (DL) transmissions in which no UL and DL signals are being transmitted based on the TDD frame structure. An interference signal is detected during the transition period, and the test device can generate a display of the spectrum during the transition period that includes the interference signal.
    Type: Application
    Filed: December 7, 2021
    Publication date: May 4, 2023
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Jong-Min KIM, Hyuck-In KWON, Young-Kill KIM, Sung-Hwa IM, Jae-Gab LEE, Yoo-Chul SHIN