Patents by Inventor Hairong Xie

Hairong Xie 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).

  • Publication number: 20230327312
    Abstract: The present disclosure relates to a power divider and a circuit including the same. The power divider may comprise: at least two branches; the at least two branches comprise a first branch coupled between a first port and a second port; and a second branch coupled between the first port and a third port; the first branch comprises a first transmission line for power dividing function coupled to the first port, and a first impedance matching structure coupled to the second port; and the second branch comprises a second transmission line for power dividing function coupled to the first port, and a second impedance matching structure coupled to the third port. According to embodiments of the present disclosure, lengths and/or even types of the transmission lines in the power divider may be reduced.
    Type: Application
    Filed: September 1, 2020
    Publication date: October 12, 2023
    Inventors: Xiaoqin Zhang, Jun Ding, Linxiang Zhan, Hairong Xie, Qian Wan
  • Patent number: 8346259
    Abstract: The invention provides a method for hand-over of a terminal from a first base station to a second base station, radio network element, terminal, base station and a communication system. The method for hand-over of a terminal from a first base station to a second base station, wherein said first base station is EV-DO enabled in an access network and said second base station is not EV-DO enabled, said method comprising: transmitting an EV-DO pilot signal from said second base station to said terminal; sending a route update message including an EV-DO pilot strength from said terminal if said EV-DO pilot strength is above a predetermined threshold; calculating a CDMA pilot strength based on said EV-DO pilot strength; and performing the hand-over of said terminal to said second base station when CDMA pilot strength is above the hand-over threshold.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: January 1, 2013
    Assignee: Alcatel Lucent
    Inventors: Hairong Xie, Yujun He, Steven Shio
  • Publication number: 20100291930
    Abstract: The invention provides a method for hand-over of a terminal from a first base station to a second base station, radio network element, terminal, base station and a communication system. The method for hand-over of a terminal from a first base station to a second base station, wherein said first base station is EV-DO enabled in an access network and said second base station is not EV-DO enabled, said method comprising: transmitting an EV-DO pilot signal from said second base station to said terminal; sending a route update message including an EV-DO pilot strength from said terminal if said EV-DO pilot strength is above a predetermined threshold; calculating a CDMA pilot strength based on said EV-DO pilot strength; and performing the hand-over of said terminal to said second base station when CDMA pilot strength is above the hand-over threshold.
    Type: Application
    Filed: September 19, 2007
    Publication date: November 18, 2010
    Inventors: Hairong Xie, Yujun He, Steven Shio