Patents by Inventor Shundong Xia

Shundong Xia 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).

  • Optical power adjustment method for ethernet passive optical network system, and optical line terminal
    Patent number: 9008505
    Abstract: The present invention provides optical power adjustment method for EPON system, and OLT. The method comprises: OLT starting optical power adjustment procedure after ONU or ONT successfully registers, receiving upstream data from the ONU or the ONT (201); during optical power adjustment procedure, OLT detecting whether there is error code in upstream data; if not, notifying the ONU or the ONT to decrease transmission optical power progressively, during progressive decrease procedure, OLT continuing to detect whether there is error code in upstream data (203); if there is error code during progressive decrease procedure, notifying the ONU or the ONT to increase transmission optical power progressively, and during progressive increase procedure, OLT continuing to detect whether there is error code in upstream data (205); if there is no error code during progressive increase procedure, OLT stopping the adjustment (207).
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: April 14, 2015
    Assignee: ZTE Corporation
    Inventor: Shundong Xia
  • OPTICAL POWER ADJUSTMENT METHOD FOR ETHERNET PASSIVE OPTICAL NETWORK SYSTEM, AND OPTICAL LINE TERMINAL
    Publication number: 20130004161
    Abstract: The present invention provides optical power adjustment method for EPON system, and OLT. The method comprises: OLT starting optical power adjustment procedure after ONU or ONT successfully registers, receiving upstream data from the ONU or the ONT (201); during optical power adjustment procedure, OLT detecting whether there is error code in upstream data; if not, notifying the ONU or the ONT to decrease transmission optical power progressively, during progressive decrease procedure, OLT continuing to detect whether there is error code in upstream data (203); if there is error code during progressive decrease procedure, notifying the ONU or the ONT to increase transmission optical power progressively, and during progressive increase procedure, OLT continuing to detect whether there is error code in upstream data (205); if there is no error code during progressive increase procedure, OLT stopping the adjustment (207).
    Type: Application
    Filed: September 19, 2010
    Publication date: January 3, 2013
    Applicant: ZTE CORPORATION
    Inventor: Shundong Xia