Patents by Inventor Xhangyong Ma

Xhangyong Ma 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 equipment for regulating dynamically an average area of a channel estimation
    Publication number: 20050018641
    Abstract: The present invention relates to a method and an apparatus for adjusting an average interval of channel estimation dynamically based on Doppler-shift. The method comprises the steps of estimating Doppler-shift by using level cross rate (LCR) according to differently moving speeds of mobile terminals, determining the optimal average interval of channel estimation based on the relationship between the existing Doppler-shift and the optimal average interval of channel estimation, dynamically adjusting the average interval of channel estimation according to the determined the optimal average interval of channel estimation to make the coherent receiver obtain the optimal estimation performance at different moving speeds.
    Type: Application
    Filed: September 3, 2002
    Publication date: January 27, 2005
    Inventors: Chunming Zhao, Xhangyong Ma, Liangcheng Jiang, Xiaohu You