Patents by Inventor Seon Shim Cheon

Seon Shim Cheon 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).

  • Power control apparatus and method with interference reduction during soft handoff in CDMA cellular communication systems
    Patent number: 6487191
    Abstract: The present invention relates to a power control method for forward links in the CDMA cellular mobile communication system and a structure of a mobile station and a base station for the control. The power control method for forward links and a structure of a base station and a mobile station for the control in the CDMA cellular mobile communication system is presented which can increase forward link capacity as a mobile station measures signals of forward traffic channels from base stations in soft handoff and requests power increase/decrease divided for each corresponding base station and the base station adjusts transmit power of corresponding traffic channels depending on the forward link state.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: November 26, 2002
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang Soon Kang, Seon Shim Cheon, Ki Seok Kim, Cheol Hye Cho