Patents by Inventor Bal Geum Choi

Bal Geum Choi 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 weight factor matrix determination for beam forming
    Patent number: 8767866
    Abstract: Disclosed is a weight factor matrix determining method for beamforming in a base station in order for inter-cell interference to be removed. The weight factor matrix determining method for beamforming which includes: determining a first transmission power for a first terminal being a target terminal and a second transmission power for a plurality of second terminals other than the target terminal; calculating an Eigen vector with an Eigen value for a ratio of the first and second transmission powers; and determining a weight factor matrix in a serving base station, with the calculated Eigen vector.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: July 1, 2014
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Bal Geum Choi, Jung Hyun Heo
  • METHOD AND APPARATUS FOR WEIGHT FACTOR MATRIX DETERMINATION FOR BEAM FORMING
    Publication number: 20120114066
    Abstract: Disclosed is a weight factor matrix determining method for beamforming in a base station in order for inter-cell interference to be removed. The weight factor matrix determining method for beamforming which includes: determining a first transmission power for a first terminal being a target terminal and a second transmission power for a plurality of second terminals other than the target terminal; calculating an Eigen vector with an Eigen value for a ratio of the first and second transmission powers; and determining a weight factor matrix in a serving base station, with the calculated Eigen vector.
    Type: Application
    Filed: December 23, 2009
    Publication date: May 10, 2012
    Applicant: SEAH NETWORKS CO., LTD.
    Inventors: Bal Geum Choi, Jung Hyun Heo