Patents by Inventor Lingdi PING

Lingdi PING 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).

  • Method and system for fast handover in hierarchical mobile IPv6
    Patent number: 8570976
    Abstract: A method and system for fast handover in hierarchical mobile IPv6 includes: a mobile node which transmits a proxy route request message to a previous access router of the mobile node according to a handover expectation provided by the link layer, the previous access router transmits a network prefix information of a new access router of the mobile node to the mobile node; the mobile node which generates new care-of address according to the network prefix information; after the mobile node moves to a target network, an optimistic duplicate address detection is performed on the care-of address. The disclosure can simplify the handover procedure of hierarchical mobile IPV6 of the mobile node, reduce the signaling interaction in handover process, and shorten handover delay.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: October 29, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xuezeng Pan, Jun Guan, Lingdi Ping, Jiong Chen, Defeng Li
  • METHOD AND SYSTEM FOR FAST HANDOVER IN HIERARCHICAL MOBILE IPv6
    Publication number: 20080310369
    Abstract: A method and system for fast handover in hierarchical mobile IPv6 includes: a mobile node which transmits a proxy route request message to a previous access router of the mobile node according to a handover expectation provided by the link layer, the previous access router transmits a network prefix information of a new access router of the mobile node to the mobile node; the mobile node which generates new care-of address according to the network prefix information; after the mobile node moves to a target network, an optimistic duplicate address detection is performed on the care-of address. The disclosure can simplify the handover procedure of hierarchical mobile IPV6 of the mobile node, reduce the signaling interaction in handover process, and shorten handover delay.
    Type: Application
    Filed: August 25, 2008
    Publication date: December 18, 2008
    Applicants: HUAWEI TECHNOLOGIES CO., LTD., ZHEJIANG UNIVERSITY
    Inventors: Xuezeng PAN, Jun GUAN, Lingdi PING, Jiong CHEN, Defeng LI