Patents by Inventor Wang Rui

Wang Rui 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).

  • Channel estimation in cdma communications systems using both lower power pilot channel and higher power date channel
    Publication number: 20070030827
    Abstract: An iterative arrangement of channel estimator (12), a Kalman filter unit (14), and a soft demodulator (16) is provided for producing an estimate of complex gain of a CDMA communications channel carrying data and pilot channels, and demodulated data of the data channel. An initial channel estimate is produced by the estimator (12) using only the low-power pilot channel. This later is improved by the iterative process using the data channel. The complex gains is represented by a sum of sinusoidal signals with different frequencies and randomly variable amplitude and phase.
    Type: Application
    Filed: May 23, 2001
    Publication date: February 8, 2007
    Inventors: Wang Rui, Chao Wang, Mohammed El-Tarkhuni, Zhi Ding, Yuri Shinakov, Alexandre Chloma, Mikhail Bakouline, Vitali Kreindeline