Patents by Inventor KUANG-MIN LIN

KUANG-MIN LIN 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).

  • Joint estimation and compensation method of RF imperfections in LTE uplink system
    Patent number: 9537701
    Abstract: A joint estimation and compensation method of RF imperfections in a LIE (Long Term Evolution) uplink system comprises steps: establishing a joint signal model with RF imperfections; according to the joint signal model, undertaking estimation and compensation of CFO, DC offset, multipath channel, IQ imbalance and shaping filter imbalance of a received signal; and using a frequency equalizer to equalize said received signal and determine modulation data. For reducing computational complexity, the present invention further converts the received signal from a time domain to a frequency domain to undertake frequency domain compensation. The present invention can indeed solve the problems of IQ imbalance, filter imbalance, DC offset, multipath channel and CFO and effectively estimate and compensate RF imperfections in the LTE uplink system.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 3, 2017
    Assignee: Yuan Ze University
    Inventors: Juinn-Horng Deng, Hung-Yang Hsieh, Jeng-Kuang Hwang, Yi-Hsin Lin, Sheng-Yang Huang, Kuang-Min Lin
  • JOINT ESTIMATION AND COMPENSATION METHOD OF RF IMPERFECTIONS IN LTE UPLINK SYSTEM
    Publication number: 20160285667
    Abstract: A joint estimation and compensation method of RF imperfections in a LIE (Long Term Evolution) uplink system comprises steps: establishing a joint signal model with RF imperfections; according to the joint signal model, undertaking estimation and compensation of CFO, DC offset, multipath channel, IQ imbalance and shaping filter imbalance of a received signal; and using a frequency equalizer to equalize said received signal and determine modulation data. For reducing computational complexity, the present invention further converts the received signal from a time domain to a frequency domain to undertake frequency domain compensation. The present invention can indeed solve the problems of IQ imbalance, filter imbalance, DC offset, multipath channel and CFO and effectively estimate and compensate RF imperfections in the LTE uplink system.
    Type: Application
    Filed: December 17, 2015
    Publication date: September 29, 2016
    Inventors: JUINN-HORNG DENG, HUNG-YANG HSIEH, JENG-KUANG HWANG, YI-HSIN LIN, SHENG-YANG HUANG, KUANG-MIN LIN