Patents by Inventor Jae Hoon Chun

Jae Hoon Chun 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).

  • Method and apparatus for efficient feedback in a wireless communication system supporting multiple antennas
    Patent number: 8953540
    Abstract: The present invention relates to a method for transmitting channel state information regarding downlink transmission through an uplink may comprise the steps of: receiving a downlink signal through a downlink channel; generating a rank indicator (RI) for the downlink channel, a first precoding matrix indicator (PMI), and a second PMI, and generating channel quality information (CQI) on the basis of pre-coding information which is determined by a combination of the first and second PMIs; and transmitting the RI, first PMI, second PMI, and/or CQI through the uplink channel. The CQI may comprises a first type of CQI calculated on the basis of the number N of layers in which the downlink signal is received and/or a second type of CQI calculated on the basis of the assumption that the number of layers in which the downlink signal is transmitted is K (where K>N).
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: February 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hyun Soo Ko, Jae Hoon Chun, Moon Il Lee
  • METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS
    Publication number: 20120320862
    Abstract: The present invention relates to a method for transmitting channel state information regarding downlink transmission through an uplink may comprise the steps of: receiving a downlink signal through a downlink channel; generating a rank indicator (RI) for the downlink channel, a first precoding matrix indicator (PMI), and a second PMI, and generating channel quality information (CQI) on the basis of pre-coding information which is determined by a combination of the first and second PMIs; and transmitting the RI, first PMI, second PMI, and/or CQI through the uplink channel. The CQI may comprises a first type of CQI calculated on the basis of the number N of layers in which the downlink signal is received and/or a second type of CQI calculated on the basis of the assumption that the number of layers in which the downlink signal is transmitted is K (where K>N).
    Type: Application
    Filed: March 29, 2011
    Publication date: December 20, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyun Soo Ko, Jae Hoon Chun, Moon Il Lee