Patents by Inventor Uitae Hwang

Uitae Hwang 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).

  • Random perturbation-based beamforming method and apparatus for use in mobile communication system
    Patent number: 9577343
    Abstract: A method and apparatus configures a beamforming coefficient based on the signal strength information without collecting channel information by adjusting the phase of the antennas through random perturbation. An antenna control method of a base station in a wireless communication system using a beamforming technique includes measuring nth received signal strength at nth phase of at least one receive antenna, measuring (n+1)th received signal strength at (n+1)th phase shifted randomly from the nth phase in one of forward and backward directions, and configuring a beamforming coefficient with the phase at which the received signal strength is greatest through comparison of received signal strengths. The random perturbation-based beamforming method and apparatus of the present disclosure is capable of configuring the beamforming coefficient appropriate for the normal cellular environment using a plurality analog array antenna without channel estimation overhead.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: February 21, 2017
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Jeongho Park, Jiyun Seol, Yonghoon Lee, Minhyun Kim, Sungjin Kim, Uitae Hwang
  • RANDOM PERTURBATION-BASED BEAMFORMING METHOD AND APPARATUS FOR USE IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20140184446
    Abstract: A method and apparatus configures a beamforming coefficient based on the signal strength information without collecting channel information by adjusting the phase of the antennas through random perturbation. An antenna control method of a base station in a wireless communication system using a beamforming technique includes measuring nth received signal strength at nth phase of at least one receive antenna, measuring (n+1)th received signal strength at (n+1)th phase shifted randomly from the nth phase in one of forward and backward directions, and configuring a beamforming coefficient with the phase at which the received signal strength is greatest through comparison of received signal strengths. The random perturbation-based beamforming method and apparatus of the present disclosure is capable of configuring the beamforming coefficient appropriate for the normal cellular environment using a plurality analog array antenna without channel estimation overhead.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Samsung Electronics Co., Ltd
    Inventors: Jeongho Park, Jiyun Seol, Yonghoon Lee, Minhyun Kim, Sungjin Kim, Uitae Hwang