Patents by Inventor Guoping Li

Guoping Li 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: 20080172732
    Abstract: A system for ensuring quality of service (QoS) in a virtual private network and a method thereof are provided. The system includes a logical bearer network, which is formed by connecting label switch paths configured with preserving bandwidth to routers, and is dedicated to transmit QoS service data; and a bearer control network, which is used to maintain logical bearer network, allocate route, mark service priority, and route service data to opposite end. The method includes the steps of: A. constructing a logical bearer network to transmit QoS service data by configuring label switch paths with preserved bandwidth; B. providing a centralized resource controller to manage resources of the logical bearer network; C. if QoS service data is to be transmitted, marking service priority in QoS field of the routing labels of multi-protocol label switch data packets, and routing service data to the opposite end.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 17, 2008
    Inventors: Defeng Li, Guoping Li, Bin Li
  • Patent number: 7319691
    Abstract: The invention discloses a method for providing guaranteed Quality of Services (QoS) in an IP network. In the invention, separated with the function of route selection for IP packets in IP bearer network, the same function for services with guaranteed QoS requirements is accomplished by bearer network resource managers in bearer control layer. After completing the route selection according to network resource occupation condition, the bearer network resource managers control the edge routers so that the traffic streams can be forwarded according to the path designated by the resource manager in the bearer network with multi-level label stack technology. The invention also discloses a system for providing guaranteed QoS in an IP network. The method and system according to the invention have good expansibility and little impact to the prior network.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: January 15, 2008
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wu Qing, Jiandong Ge, Guoping Li, Jianzhong Huang
  • Publication number: 20070133568
    Abstract: A method for realizing route forwarding in a network, including: establishing LSPs in a bearer network; setting an entrance label in the starting node of each LSP pointing to forwarding information of the LSP; a bearer control entity assigning a transfer path for the service flow and sending the information of all corresponding entrance labels of the transfer path to the ingress edge node of the transfer path; when the service flow needs to be forwarded, the ingress edge node puts the label stack into the data packet of the service flow to generate an MPLS exchange packet; and forwarding the MPLS exchange packet in the bearer network according to the label stack until the packet reaches the egress edge node of the transfer path. The present invention grants high compatibility to the network, minimizes the network investment, and reduces the difficulties in network implementation.
    Type: Application
    Filed: December 7, 2006
    Publication date: June 14, 2007
    Inventors: Wu Qing, Jiandong Ge, Guoping Li, Jianzhong Huang
  • Publication number: 20070004837
    Abstract: An oil-based suspension-dispersion system of drag reduction polymers and the method for preparing same, characterized in adding 0.001-0.1 wt % of ultraviolet absorber and 0.001-0.1 wt % of bactericide into 50-90 wt % of vegetable oil and then mixing the obtained mixture to be homogeneous for use as dispersant, adding 2-25 wt % of separant into 10-40% of extra-high-molecular ?-olefin-styrene polymer based drag reduction polymer and crushing them into powders at a temperature of lower than ?90° C., based on the total weight of the suspension-dispersion system, and then adding the obtained mixture into the dispersant and stirring the mixture by using a high speed emulsion machine to make the mixture homogeneous and emulsified. The system offers a low viscosity of the suspended dispersion system, a high solid content up to 35%; improved high temperature resistance performance, higher flash point, improved safety, and good stability in storage.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 4, 2007
    Applicant: PetroChina Company Limited
    Inventors: Bing Liu, Xuchen Bao, Yanqing Gao, Chunman Li, Guoping Li
  • Publication number: 20040215817
    Abstract: The invention discloses a method for providing guaranteed Quality of Services (QoS) in an IP network. In the invention, separated with the function of route selection for IP packets in IP bearer network, the same function for services with guaranteed QoS requirements is accomplished by bearer network resource managers in bearer control layer. After completing the route selection according to network resource occupation condition, the bearer network resource managers control the edge routers so that the traffic streams can be forwarded according to the path designated by the resource manager in the bearer network with multi-level label stack technology. The invention also discloses a system for providing guaranteed QoS in an IP network. The method and system according to the invention have good expansibility and little impact to the prior network.
    Type: Application
    Filed: February 6, 2004
    Publication date: October 28, 2004
    Inventors: Wu Qing, Jiandong Ge, Guoping Li, Jianzhong Huang
  • Publication number: 20040177107
    Abstract: The invention discloses a method for providing services with guaranteed Quality of Service (QoS) in an IP access network. In this method, when the network control layer applies for network resources to the access network as response to the service request of needing guaranteed QoS, the edge router determines whether the access network can provide enough resources for the service. If there are enough resources, the edge router sends QoS parameters to the access network end devices which make QoS control to get a guaranteed QoS.
    Type: Application
    Filed: February 6, 2004
    Publication date: September 9, 2004
    Inventors: Wu Qing, Jiandong Ge, Guoping Li, Jianzhong Huang, Qiwu Liu