Patents by Inventor Shifa Zhang

Shifa Zhang 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).

  • Patent number: 9036660
    Abstract: Embodiments of the present invention disclose a method and an apparatus for managing a MAC address table. The method includes: receiving a packet and obtaining MAC address information carried in the packet; matching the MAC address information with a MAC address table; and if the matching succeeds, prolonging an aging time of the MAC address information in the MAC address table.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: May 19, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shifa Zhang, Xuefei Tan
  • Patent number: 7756147
    Abstract: The present invention provides a VLAN-based data packet transmission method and an Ethernet bridge device. The method includes: learning a member port corresponding to a VLAN according to a data packet received by an Ethernet bridge device, and storing a correspondence between a VLAN and the learnt member port; and forwarding the data packet by the Ethernet bridge device according to the correspondence between each VLAN and its member port that is stored.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: July 13, 2010
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shifa Zhang, Zhijun Qu, Wumao Chen, Qiao Li
  • Patent number: 7684405
    Abstract: The present invention discloses a high-capacity broadband access method, comprising: a broadband subscriber initiating an access request to an access unit; the access unit sending the subscriber authentication information to a control unit via a route switching unit; the control unit authenticating the subscriber with an internal or external authentication, authorization and accounting server, returning the authentication result to the access unit via the route switching unit, and sending the configuration information to the accessed subscriber; the route switching unit and the access unit accomplishing configuration of the subscriber information, allocating corresponding resource to the subscriber, and establishing a data channel for network access of the subscriber. The present invention also discloses a high-capacity broadband access device and a system thereof.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: March 23, 2010
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shifa Zhang, Haijun Wu
  • Publication number: 20080205296
    Abstract: The present invention provides a VLAN-based data packet transmission method and an Ethernet bridge device. The method includes: learning a member port corresponding to a VLAN according to a data packet received by an Ethernet bridge device, and storing a correspondence between a VLAN and the learnt member port; and forwarding the data packet by the Ethernet bridge device according to the correspondence between each VLAN and its member port that is stored. In the invention, the storage space of MAC address table of the Ethernet bridge device only needs to meet the requirement on the MAC address of its local user, thus the requirement of the access convergence network on the storage space of the MAC address table of the Ethernet bridge device may be lowered.
    Type: Application
    Filed: January 29, 2008
    Publication date: August 28, 2008
    Inventors: Shifa Zhang, Zhijun Qu, Wumao Chen, Qiao Li
  • Publication number: 20080130247
    Abstract: The embodiments of the present invention disclose a broadband-narrowband combining board in an integrated access apparatus, which includes a broadband processing module, a narrowband processing module and a separator module, wherein the broadband processing module, the narrowband processing module and the separator module are removably connected to a connector. The embodiments of the present invention also disclose an apparatus including a broadband-narrowband combining board. The broadband-narrowband combining board in accordance with the embodiments of the present invention may be configured according to the demands of subscribers, which brings more flexibility and convenience to the application of the broadband-narrowband combining board.
    Type: Application
    Filed: July 3, 2007
    Publication date: June 5, 2008
    Inventors: Xueyi ZHAO, Dong LI, Peng MA, Hui SHENG, Zheng XU, Zhiguo YAN, Xingguo GAO, Zhishan FENG, Jinlin ZHOU, Shifa ZHANG
  • Publication number: 20070159971
    Abstract: The present invention discloses a high-capacity broadband access method, comprising: a broadband subscriber initiating an access request to an access unit; the access unit sending the subscriber authentication information to a control unit via a route switching unit; the control unit authenticating the subscriber with an internal or external authentication, authorization and accounting server, returning the authentication result to the access unit via the route switching unit, and sending the configuration information to the accessed subscriber; the route switching unit and the access unit accomplishing configuration of the subscriber information, allocating corresponding resource to the subscriber, and establishing a data channel for network access of the subscriber. The present invention also discloses a high-capacity broadband access device and a system thereof.
    Type: Application
    Filed: March 1, 2004
    Publication date: July 12, 2007
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Shifa Zhang, Hiajun Wu