Patents by Inventor Won-Yeol LEE

Won-Yeol LEE 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: 10924176
    Abstract: Provided are a next generation in-building relay system and method. The system includes: a 5G signal providing unit configured to down-convert a millimeter wave radio frequency signal to an intermediate frequency signal; a 5G master hub unit configured to convert the intermediate frequency signal into a radio over fiber (RoF) signal and transmit the RoF signal; an optical coupling unit configured to couple a digital optical signal output from a master hub unit and the analog optical signal output from the 5G master hub unit and transmit the coupled signal to an optical cable; and an optical distribution unit configured to separate the digital optical signal and the analog optical signal from the coupled signal, transmit the digital optical signal to a remote optical relay unit, and transmit the analog optical signal to distributed remote units.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: February 16, 2021
    Assignee: KT CORPORATION
    Inventors: Sung-Yeop Pyun, Jong-Sik Lee, Won-Yeol Lee
  • Patent number: 10763950
    Abstract: Provided are a 5G in-building relay system and a 5G in-building relay method for sharing an RF cable to provide a 5G communication service in the building. The 5G in-building relay system includes: a 5G signal providing device for converting RF signals of a 5G into IF signals and providing the IF signals through a pre-built RF cable of the building; an MHU for receiving and transmitting the IF signals; a coupling device for combining the IF signals with radio signals other than the 5G received from an ROU pre-built in the building and providing the combined signals through the RF cable; a distribution device for receiving the combined signals and separating and distributing the IF signals of the 5G from the combined signals; and a DRU for converting the distributed IF signals into millimeter-wave RF signals and wirelessly transmitting the RF signals to a 5G terminal.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: September 1, 2020
    Assignee: KT CORPORATION
    Inventors: Sung-Yeop Pyun, Jong-Sik Lee, Won-Yeol Lee
  • Patent number: 10524254
    Abstract: A system for managing a base station in a next generation mobile communication service includes a plurality of remote base stations configured to provide data transmission to a plurality of user terminals in a next generation mobile communication system; a centralized base station configured to perform interlocking among the plurality of remote base stations and perform resource allocation and scheduling for each user terminal; and a remote interlocking element configured to transmit corresponding control and data information to the plurality of remote base stations according to beamforming information and resource allocation information allocated by the centralized base station, and transmit channel information of a user terminal, which is received from the plurality of remote base stations, to the centralized base station.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: December 31, 2019
    Assignee: KT Corporation
    Inventors: Hyung-Joon Song, Won-Yeol Lee
  • Publication number: 20190379443
    Abstract: Provided are a next generation in-building relay system and method. The system includes: a 5G signal providing unit configured to down-convert a millimeter wave radio frequency signal to an intermediate frequency signal; a 5G master hub unit configured to convert the intermediate frequency signal into a radio over fiber (RoF) signal and transmit the RoF signal; an optical coupling unit configured to couple a digital optical signal output from a master hub unit and the analog optical signal output from the 5G master hub unit and transmit the coupled signal to an optical cable; and an optical distribution unit configured to separate the digital optical signal and the analog optical signal from the coupled signal, transmit the digital optical signal to a remote optical relay unit, and transmit the analog optical signal to distributed remote units.
    Type: Application
    Filed: July 12, 2017
    Publication date: December 12, 2019
    Applicant: KT CORPORATION
    Inventors: Sung-Yeop PYUN, Jong-Sik LEE, Won-Yeol LEE
  • Publication number: 20190253129
    Abstract: Provided are a 5G in-building relay system and a 5G in-building relay method for sharing an RF cable to provide a 5G communication service in the building. The 5G in-building relay system includes: a 5G signal providing device for converting RF signals of a 5G into IF signals and providing the IF signals through a pre-built RF cable of the building; an MHU for receiving and transmitting the IF signals; a coupling device for combining the IF signals with radio signals other than the 5G received from an ROU pre-built in the building and providing the combined signals through the RF cable; a distribution device for receiving the combined signals and separating and distributing the IF signals of the 5G from the combined signals; and a DRU for converting the distributed IF signals into millimeter-wave RF signals and wirelessly transmitting the RF signals to a 5G terminal.
    Type: Application
    Filed: July 7, 2017
    Publication date: August 15, 2019
    Applicant: KT CORPORATION
    Inventors: Sung-Yeop PYUN, Jong-Sik LEE, Won-Yeol LEE
  • Publication number: 20180042007
    Abstract: A system for managing a base station in a next generation mobile communication service includes a plurality of remote base stations configured to provide data transmission to a plurality of user terminals in a next generation mobile communication system; a centralized base station configured to perform interlocking among the plurality of remote base stations and perform resource allocation and scheduling for each user terminal; and a remote interlocking element configured to transmit corresponding control and data information to the plurality of remote base stations according to beamforming information and resource allocation information allocated by the centralized base station, and transmit channel information of a user terminal, which is received from the plurality of remote base stations, to the centralized base station.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 8, 2018
    Applicant: KT Corporation
    Inventors: Hyung-Joon SONG, Won-Yeol LEE
  • Patent number: 8830264
    Abstract: An method for providing an image to a multiple number of devices is disclosed. The method includes providing a part of the image to a first device, receiving, from a second device, second position information of the second device relative to first position information of the first device, and providing, to the second device, another part of the image corresponding to the position information of the second device.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: September 9, 2014
    Assignee: KT Corporation
    Inventors: Eui-Seung Son, Won-Yeol Lee, Eun-Kyoung Paik, Hyun-Pyo Kim
  • Publication number: 20130111516
    Abstract: An apparatus for providing an interface customized to contents among a plurality of contents is disclosed. The apparatus includes a contents provider configured to receive, from a first device, user information of the first device and a content request signal that requests the contents among the plurality of contents, and provide the requested contents to the first device based on the received user information of the first device, an interface request receiver configured to receive, from a second device, user information of the second device and an interface request signal that requests interface data, and an interface data provider configured to authenticate the second device by using both the user information of the first device and the user information of the second device, and provide interface data corresponding to the provided contents to the second device if the second device is authenticated.
    Type: Application
    Filed: September 13, 2012
    Publication date: May 2, 2013
    Applicant: KT CORPORATION
    Inventors: Eui-Seung SON, Joo-Hee KIM, Won-Yeol LEE, Eun-Kyoung PAIK, Hyun-Pyo KIM