Patents by Inventor Xilei CHEN

Xilei 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).

  • Central management server for special communication and access method of the central management server
    Patent number: 10477562
    Abstract: A central management server for special communication may include: a spectrum sensing information acquisition unit for acquiring spectrum sensing information from spectrum sensing servers; an OP map generation unit for generating an OP value for each channel if there is an access request from a second layer; and a channel allocation unit configured to allocate a channel based on the OP value to a user terminal of the second layer requesting access if there is an access request from the second layer. The channel allocation unit may allocate a channel corresponding to the highest OP value from among the available channels, if there are available channels unused by both a first layer and a lower-level layer, and may select and allocate a channel unused by the first layer but used by the lower-level layer, if there are no such available channels.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: November 12, 2019
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Kwang-Soon Kim, Seong-Lyun Kim, Moon Kyu Jo, Xilei Chen
  • CENTRAL MANAGEMENT SERVER FOR SPECIAL COMMUNICATION AND ACCESS METHOD OF THE CENTRAL MANAGEMENT SERVER
    Publication number: 20190069305
    Abstract: A central management server for special communication may include: a spectrum sensing information acquisition unit for acquiring spectrum sensing information from spectrum sensing servers; an OP map generation unit for generating an OP value for each channel if there is an access request from a second layer; and a channel allocation unit configured to allocate a channel based on the OP value to a user terminal of the second layer requesting access if there is an access request from the second layer. The channel allocation unit may allocate a channel corresponding to the highest OP value from among the available channels, if there are available channels unused by both a first layer and a lower-level layer, and may select and allocate a channel unused by the first layer but used by the lower-level layer, if there are no such available channels.
    Type: Application
    Filed: January 26, 2018
    Publication date: February 28, 2019
    Inventors: Kwang-Soon KIM, Seong-Lyun KIM, Moon Kyu JO, Xilei CHEN