Patents by Inventor Jiguang Xiao

Jiguang Xiao 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).

  • Communication system, device, method for handing over a route and method for notifying a state of advertising a label
    Patent number: 8121121
    Abstract: The present invention relates to a field of communication technology, and more particularly to a communication system, a label switched router, a network device, a method for handing over a route, and a method for notifying a state of advertising a label so as to improve an accuracy occasion for handing over a route. A liberal LSP between an upstream LSR and a downstream LSR is established; it is confirmed that establishing the liberal LSP is accomplished; a handover notification is sent to the upstream LSR; and the upstream LSR hands over the route according to the handover notification. By adopting such technical solution, the accuracy occasion for handing over the route is improved so as to avoid label forwarding interruption, and reduce the influences on the convergence time of handing over the route.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: February 21, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiguang Xiao, Hui Ni, Ying Chen, Jian Zhang
  • COMMUNICATION SYSTEM, DEVICE, METHOD FOR HANDING OVER A ROUTE AND METHOD FOR NOTIFYING A STATE OF ADVERTISING A LABEL
    Publication number: 20100008373
    Abstract: The present invention relates to a field of communication technology, and more particularly to a communication system, a label switched router, a network device, a method for handing over a route, and a method for notifying a state of advertising a label so as to improve an accuracy occasion for handing over a route. A liberal LSP between an upstream LSR and a downstream LSR is established; it is confirmed that establishing the liberal LSP is accomplished; a handover notification is sent to the upstream LSR; and the upstream LSR hands over the route according to the handover notification. By adopting such technical solution, the accuracy occasion for handing over the route is improved so as to avoid label forwarding interruption, and reduce the influences on the convergence time of handing over the route.
    Type: Application
    Filed: September 17, 2009
    Publication date: January 14, 2010
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Jiguang Xiao, Hui Ni, Ying Chen, Jian Zhang