Patents by Inventor Hwa-sun Yoo

Hwa-sun Yoo 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).

  • Apparatus and method for scheduling uplink transmission in wireless communication system
    Patent number: 10855406
    Abstract: A method for operating a base station (BS) in a wireless communication system is provided. The method includes transmitting, to a terminal, downlink data, allocating uplink resources for uplink data related to the downlink data without any request from the terminal, and transmitting control information indicating the uplink resources.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: December 1, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwa Sun Yoo, Hyoungmin Kim
  • APPARATUS AND METHOD FOR SCHEDULING UPLINK TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20190058555
    Abstract: A method for operating a base station (BS) in a wireless communication system is provided. The method includes transmitting, to a terminal, downlink data, allocating uplink resources for uplink data related to the downlink data without any request from the terminal, and transmitting control information indicating the uplink resources.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 21, 2019
    Inventors: Hwa Sun YOO, Hyoungmin KIM
  • Method and apparatus for generating an edge sidelobe canceling signal and uplink communication method and apparatus using the same in an OFDMA system
    Patent number: 7411897
    Abstract: An apparatus and method for generating an edge sidelobe canceling signal and an uplink communication apparatus using the same in an orthogonal frequency division multiplexing access (OFDMA) system. The uplink communication apparatus includes a transmitting terminal. The transmitting terminal includes a signal mapping unit, a serial-to-parallel conversion unit, an edge sidelobe canceling signal generation unit, an inverse fast Fourier transform (IFFT) unit, and a guard interval insertion and parallel-to-serial conversion unit.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: August 12, 2008
    Assignees: Samsung Electronics Co., Ltd, Yonsei University
    Inventors: Hwa-sun Yoo, Dae-sik Hong, Myong-hee Park, Yung-soo Kim, Byung-jang Jeong
  • Method and apparatus for generating an edge sidelobe canceling signal and uplink communication method and apparatus using the same in an OFDMA system
    Publication number: 20040114507
    Abstract: An apparatus and method for generating an edge sidelobe canceling signal and an uplink communication apparatus using the same in an orthogonal frequency division multiplexing access (OFDMA) system. The uplink communication apparatus includes a transmitting terminal. The transmitting terminal includes a signal mapping unit, a serial-to-parallel conversion unit, an edge sidelobe canceling signal generation unit, an inverse fast Fourier transform (IFFT) unit, and a guard interval insertion and parallel-to-serial conversion unit.
    Type: Application
    Filed: November 20, 2003
    Publication date: June 17, 2004
    Applicants: SAMSUNG ELECTRONICS CO., LTD., YONSEI UNIVERSITY
    Inventors: Hwa-Sun Yoo, Dae-Sik Hong, Myong-Hee Park, Yung-Soo Kim, Byung-Jiang Jeong