Patents by Inventor Qunfeng Dong

Qunfeng Dong 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).

  • Methods and devices for providing robust nomadic wireless mesh networks using directional antennas
    Patent number: 9185600
    Abstract: The number of directional antennas and associated radios needed to ensure a nomadic wireless mesh network (NWMN) remains operational in the event of node or link failures, while minimizing delay and other unwanted effects, may be determined using novel methods and devices. Such a determination may reduce the number of antennas and radios a service or network provider normally uses, thus reducing its costs.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: November 10, 2015
    Assignee: Alcatel Lucent
    Inventors: Yigal Bejerano, Qunfeng Dong
  • Method and apparatus for classifying packets
    Patent number: 8619766
    Abstract: A method and apparatus for classifying packets, e.g., at wire speed are disclosed. The method receives a packet and processes the packet through a hardware-based packet classifier having at least one evolving rule. The method then processes the packet through a software-based packet classifier if the hardware-based packet classifier is unable to classify the packet. In one embodiment, the at least one evolving rule is continuously modified in accordance with learned traffic characteristics of the received packets.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: December 31, 2013
    Assignees: AT&T Intellectual Property II, L.P., Wisconsin Alumni Research Foundation
    Inventors: Jia Wang, Suman Banerjee, Qunfeng Dong
  • Methods and Devices For Providing Robust Nomadic Wireless Mesh Networks Using Directional Antennas
    Publication number: 20120033545
    Abstract: The number of directional antennas and associated radios needed to ensure a nomadic wireless mesh network (NWMN) remains operational in the event of node or link failures, while minimizing delay and other unwanted effects, may be determined using novel methods and devices. Such a determination may reduce the number of antennas and radios a service or network provider normally uses, thus reducing its costs.
    Type: Application
    Filed: October 19, 2011
    Publication date: February 9, 2012
    Inventors: Yigal Bejerano, Qunfeng Dong
  • Methods and devices for providing robust nomadic wireless mesh networks using directional antennas
    Patent number: 8107399
    Abstract: The number of directional antennas and associated radios needed to ensure a nomadic wireless mesh network (NWMN) remains operational in the event of node or link failures, while minimizing delay and other unwanted effects, may be determined using novel methods and devices. Such a determination may reduce the number of antennas and radios a service or network provider normally uses, thus reducing its costs.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: January 31, 2012
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Yigal Bejerano, Qunfeng Dong
  • Localized construction of fault resilient high capacitywireless networks with bounded node degree
    Publication number: 20100260070
    Abstract: Embodiments described include methods of determining neighboring nodes with which to link a subject node in a wireless communication network. Depending on the network preferences, the links between neighbor nodes and the subject node may include high capacity links or fault resilient high capacity links. The number of neighboring nodes may be as high as ten in a fault resilient high capacity network and five or less for a high capacity network.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 14, 2010
    Inventors: Yigal Bejerano, Qunfeng Dong
  • METHOD AND APPARATUS FOR FILTERING PACKETS USING AN APPROXIMATE PACKET CLASSIFICATION
    Publication number: 20090271857
    Abstract: A method and apparatus that enables approximate packet classification by using both an exact packet classification method and an inexact packet classification method are disclosed. For example, the method filters a plurality of packets using an exact packet classification method when a processing load is below or equal to a threshold, and filters the plurality of packets by dynamically switching between the exact packet classification method and an inexact packet classification method when the processing load is above the threshold.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 29, 2009
    Inventors: Jia Wang, Suman Banerjee, Qunfeng Dong, Zihui Ge
  • Methods and devices for providing robust nomadic wireless mesh networks using directional antennas
    Publication number: 20080304422
    Abstract: The number of directional antennas and associated radios needed to ensure a nomadic wireless mesh network (NWMN) remains operational in the event of node or link failures, while minimizing delay and other unwanted effects, may be determined using novel methods and devices. Such a determination may reduce the number of antennas and radios a service or network provider normally uses, thus reducing its costs.
    Type: Application
    Filed: June 8, 2007
    Publication date: December 11, 2008
    Inventors: Yigal Bejerano, Qunfeng Dong
  • METHOD AND APPARATUS FOR CLASSIFYING PACKETS
    Publication number: 20080212586
    Abstract: A method and apparatus for classifying packets, e.g., at wire speed are disclosed. The method receives a packet and processes the packet through a hardware-based packet classifier having at least one evolving rule. The method then processes the packet through a software-based packet classifier if the hardware-based packet classifier is unable to classify the packet.
    Type: Application
    Filed: March 2, 2007
    Publication date: September 4, 2008
    Inventors: Jia Wang, SUMAN BANERJEE, Qunfeng Dong