Patents by Inventor Cheol Hoi Cho

Cheol Hoi Cho 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 of forward traffic channel power control for CDMA wireless local loop system
    Patent number: 6038220
    Abstract: The present invention relates to a method and apparatus of a forward traffic channel power control for a code division multiple access (CDMA) wireless local loop system not having a hand-off function. The present invention distinguishes between a normal mode and a threshold mode in a CDMA wireless local loop. Here, the total power is lower than a predetermined power threshold value in the normal mode, and the total power arrives at the predetermined power threshold value in the threshold mode. In addition, the present invention varies method of increasing/reducing the forward traffic channel power according to the determined mode. As a result, method and apparatus according to the present invention effectively reduces the forward link interference signal at nearby cells, and provides a proper traffic quality.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: March 14, 2000
    Assignees: Electronics and Telecommunications Research Institute, Korea Telecom, DACOM Corporation
    Inventors: Chang Soon Kang, Hun Lee, Cheol Hoi Cho, Ki Seok Kim