Patents by Inventor Kwang-Ja Lim

Kwang-Ja Lim 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).

  • Diversity transmission method and transmitter of a base station using the same in a mobile communication system
    Patent number: 7941104
    Abstract: A diversity transmission method and a transmitter of a base station using the same is provided in a mobile communication system. For this purpose, the diversity transmission method for controlling power of transmit antennas when the transmitter transmits a signal to a mobile terminal using a plurality of antennas includes (a) receiving feedback information concerning the antenna having the best channel status from the mobile terminal, (b) increasing power allocation of a selected antenna according to the feedback information by a predetermined amount and decreasing power allocation of a non-selected antenna by a predetermined amount, and (c) transmitting the signal to the mobile terminal using the power allocation controlled in (b).
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: May 10, 2011
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute, KT Corporation, SK Telecom Co., Ltd, Hanaro Telecom, Inc.
    Inventors: Kwang-Ja Lim, Chul-Sik Yoon