Patents by Inventor Qianglin Quintin Zhao

Qianglin Quintin Zhao 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: 20210168070
    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 3, 2021
    Applicant: Futurewei Technologies, Inc.
    Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
  • Patent number: 10855582
    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: December 1, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
  • Patent number: 10581723
    Abstract: A path computation element (PCE) central controller (PCECC) comprising a memory comprising executable instructions and a processor coupled to the memory and configured to execute the instructions. Executing the instructions causes the processor to receive a request to compute a path through a network, the request comprising a plurality of computational tasks, divide the computational tasks into a plurality of groups of computational tasks, transmit at least some of the plurality of groups of computational tasks to a plurality of path computation clients (PCCs) for computation by the PCCs, and receive, from the PCCs, computation results corresponding to the plurality of groups of computational tasks.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 3, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventor: Qianglin Quintin Zhao
  • Patent number: 10412019
    Abstract: A method implemented by a path computation element centralized controller (PCECC), the method comprises: receiving a service request to provision for a service from a first edge node and a second edge node in a network; computing a path for a label switched path (LSP) from the first edge node to the second edge node in response to the service request; reserving label information for forwarding traffic of the service on the LSP; and sending a label update message to a third node on the path to facilitate forwarding of the traffic of the service on the path, wherein the label update message comprises the label information.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 10, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qianglin Quintin Zhao, Renwei Li
  • Publication number: 20190273679
    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 5, 2019
    Applicant: Futurewei Technologies, Inc.
    Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
  • Patent number: 10305791
    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: May 28, 2019
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
  • Patent number: 10187305
    Abstract: A path control element (PCE) is provided, including a processor and a non-transitory computer readable storage medium coupled to the processor. The storage medium stores programming for execution by the processor, wherein the programming, when executed by the processor, configures the PCE to receive a request for a path of a unicast or multicast label switching path (LSP), determine a primary path and a secondary/local protection path through a plurality of nodes in a label switched network, and provide the primary path and the secondary/local protection path to the plurality of nodes.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: January 22, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventor: Qianglin Quintin Zhao
  • Patent number: 9929919
    Abstract: Embodiments are provided herein to enable single level network abstraction for a service across one or more domains. The embodiments use a single network ID to identify a service and a corresponding virtual network topology across any number of domains at a physical network. A virtual network topology can be abstracted for each service, based on the physical underlying network topology. A network controller determines, for a service, the virtual network topology within a physical network, and binds the service to the virtual network topology via a virtual network ID, which defines a single forwarding domain of the virtual network topology across the physical network. The virtual network ID is then indicated to the nodes of the virtual network topology, thus enabling the nodes to identify and forward traffic for the service, within the single forwarding domain, between end clients from edge to edge of the physical network.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: March 27, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qianglin Quintin Zhao, Renwei Li, Lin Han, Katherine Zhao
  • Publication number: 20180034730
    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.
    Type: Application
    Filed: October 9, 2017
    Publication date: February 1, 2018
    Inventors: Qianglin Quintin ZHAO, Katherine ZHAO, Bisong TAO
  • Patent number: 9813333
    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: November 7, 2017
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
  • Publication number: 20170289020
    Abstract: A path computation element (PCE) central controller (PCECC) comprising a memory comprising executable instructions and a processor coupled to the memory and configured to execute the instructions. Executing the instructions causes the processor to receive a request to compute a path through a network, the request comprising a plurality of computational tasks, divide the computational tasks into a plurality of groups of computational tasks, transmit at least some of the plurality of groups of computational tasks to a plurality of path computation clients (PCCs) for computation by the PCCs, and receive, from the PCCs, computation results corresponding to the plurality of groups of computational tasks.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 5, 2017
    Inventor: Qianglin Quintin Zhao
  • Publication number: 20170012895
    Abstract: A method implemented by a path computation element centralized controller (PCECC), the method comprises: receiving a service request to provision for a service from a first edge node and a second edge node in a network; computing a path for a label switched path (LSP) from the first edge node to the second edge node in response to the service request; reserving label information for forwarding traffic of the service on the LSP; and sending a label update message to a third node on the path to facilitate forwarding of the traffic of the service on the path, wherein the label update message comprises the label information.
    Type: Application
    Filed: July 1, 2016
    Publication date: January 12, 2017
    Inventors: Qianglin Quintin Zhao, Renwei Li
  • Publication number: 20160359735
    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.
    Type: Application
    Filed: August 17, 2016
    Publication date: December 8, 2016
    Inventors: Qianglin Quintin ZHAO, Katherine ZHAO, Bisong TAO
  • Patent number: 9450864
    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: September 20, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
  • Patent number: 9369335
    Abstract: An apparatus comprising a memory, and a processor coupled to the memory and configured to transmit a multicast Resource Reservation Protocol-Traffic Engineering (mRSVP-TE) path request (PATH) message upstream, wherein the PATH message requests reservation of a backup Label Switched Path (LSP) to protect an active LSP configured to transmit multicast data. The disclosure also includes a computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a network element (NE) to receive a multicast PATH message from a downstream node, wherein the NE acts as a Point of Local Repair (PLR) along an active LSP, wherein the active LSP is configured to transmit multicast data, and wherein the PATH message requests reservation of a backup LSP to protect the active LSP.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: June 14, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Katherine Zhao, Ying Chen, Qianglin Quintin Zhao, Tao Zhou, Renwei Li, Lin Han
  • Publication number: 20160112247
    Abstract: An apparatus comprising a memory, and a processor coupled to the memory and configured to transmit a multicast Resource Reservation Protocol-Traffic Engineering (mRSVP-TE) path request (PATH) message upstream, wherein the PATH message requests reservation of a backup Label Switched Path (LSP) to protect an active LSP configured to transmit multicast data. The disclosure also includes a computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a network element (NE) to receive a multicast PATH message from a downstream node, wherein the NE acts as a Point of Local Repair (PLR) along an active LSP, wherein the active LSP is configured to transmit multicast data, and wherein the PATH message requests reservation of a backup LSP to protect the active LSP.
    Type: Application
    Filed: December 22, 2015
    Publication date: April 21, 2016
    Inventors: Katherine Zhao, Ying Chen, Qianglin Quintin Zhao, Tao Zhou, Renwei Li, Lin Han
  • Patent number: 9253082
    Abstract: In one aspect, the invention includes, in a root node along a secondary label switching path, a computer program product comprising computer executable instructions stored on a non-transitory medium that when executed by a processor cause the root node to perform the following: establish a first data plane based failure detection session having an inactive status along a first label switching path (LSP) with at least one leaf node, receive a predetermined number of notification messages from the leaf node, wherein the predetermined number of notification messages indicate the failure of a second data plane based failure detection session along a second LSP from a second processor to the leaf node, and change the status of the first data plane based failure detection session to active along the first LSP upon receipt of the predetermined number of notification messages.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: February 2, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qianglin Quintin Zhao, Ying Chen
  • Patent number: 9246696
    Abstract: An apparatus comprising a memory, and a processor coupled to the memory and configured to transmit a backup Label Switched Path (LSP) multicast Resource Reservation Protocol-Traffic Engineering (mRSVP-TE) path request (PATH) message upstream, wherein the backup LSP PATH message requests reservation of a first backup LSP to protect a first primary LSP configured to transmit multicast data, and wherein the backup LSP PATH message is transmitted to support a facility mode one to many (1:N) fast reroute protocol.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: January 26, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Katherine Zhao, Ying Chen, Qianglin Quintin Zhao, Tao Zhou, Renwei Li, Lin Han
  • Publication number: 20160006614
    Abstract: A network configuring method including receiving a label switched path (LSP) tunnel request from a path computation element (PCE), computing an LSP path, sending an LSP initiation message that comprises a label stack for the LSP path computed to the PCE, receiving an LSP delegation message from the PCE, and sending a label entry update message that comprises the label stack to PCEs along the computed LSP. A network configuring method including sending an LSP tunnel request to a path computation element central controller (PCECC), receiving an LSP initiation message that comprises a label stack for a computed LSP path from the PCECC, creating an LSP tunnel using the label stack, sending an LSP delegation message to the PCECC, receiving a label entry update message that comprises the label, and obtaining the label stack using the label entry update message.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 7, 2016
    Inventor: Qianglin Quintin Zhao
  • Patent number: RE47260
    Abstract: A system comprising a plurality of path computation elements (PCEs) configured to communicate with an ingress node, jointly compute a core tree for an inter-domain point-to-multipoint (P2MP) tree across a plurality of network domains, and independently compute a plurality of sub-trees in at least some of the network domains, wherein the core tree connects the ingress node to a boundary node (BN) in each one of the network domains that have a destination node and each sub-tree connects the BN to a plurality of destination nodes in one of the network domains that have a destination node.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: February 26, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qianglin Quintin Zhao, Huaimo Chen