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).
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Publication number: 20230126161Abstract: 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: ApplicationFiled: September 16, 2022Publication date: April 27, 2023Applicant: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
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Patent number: 11451471Abstract: 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: GrantFiled: November 30, 2020Date of Patent: September 20, 2022Assignee: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
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Publication number: 20210168070Abstract: 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: ApplicationFiled: November 30, 2020Publication date: June 3, 2021Applicant: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
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Patent number: 10855582Abstract: 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: GrantFiled: May 22, 2019Date of Patent: December 1, 2020Assignee: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
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Patent number: 10581723Abstract: 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: GrantFiled: March 30, 2017Date of Patent: March 3, 2020Assignee: Futurewei Technologies, Inc.Inventor: Qianglin Quintin Zhao
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Patent number: 10412019Abstract: 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: GrantFiled: July 1, 2016Date of Patent: September 10, 2019Assignee: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Renwei Li
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Publication number: 20190273679Abstract: 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: ApplicationFiled: May 22, 2019Publication date: September 5, 2019Applicant: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
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Patent number: 10305791Abstract: 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: GrantFiled: October 9, 2017Date of Patent: May 28, 2019Assignee: FUTUREWEI TECHNOLOGIES, INC.Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
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Patent number: 10187305Abstract: 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: GrantFiled: July 2, 2015Date of Patent: January 22, 2019Assignee: Futurewei Technologies, Inc.Inventor: Qianglin Quintin Zhao
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Patent number: 9929919Abstract: 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: GrantFiled: October 30, 2013Date of Patent: March 27, 2018Assignee: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Renwei Li, Lin Han, Katherine Zhao
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Publication number: 20180034730Abstract: 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: ApplicationFiled: October 9, 2017Publication date: February 1, 2018Inventors: Qianglin Quintin ZHAO, Katherine ZHAO, Bisong TAO
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Patent number: 9813333Abstract: 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: GrantFiled: August 17, 2016Date of Patent: November 7, 2017Assignee: FUTUREWEI TECHNOLOGIES, INC.Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
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Publication number: 20170289020Abstract: 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: ApplicationFiled: March 30, 2017Publication date: October 5, 2017Inventor: Qianglin Quintin Zhao
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Publication number: 20170012895Abstract: 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: ApplicationFiled: July 1, 2016Publication date: January 12, 2017Inventors: Qianglin Quintin Zhao, Renwei Li
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Publication number: 20160359735Abstract: 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: ApplicationFiled: August 17, 2016Publication date: December 8, 2016Inventors: Qianglin Quintin ZHAO, Katherine ZHAO, Bisong TAO
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Patent number: 9450864Abstract: 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: GrantFiled: October 10, 2014Date of Patent: September 20, 2016Assignee: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Katherine Zhao, Bisong Tao
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Patent number: 9369335Abstract: 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: GrantFiled: December 22, 2015Date of Patent: June 14, 2016Assignee: Futurewei Technologies, Inc.Inventors: Katherine Zhao, Ying Chen, Qianglin Quintin Zhao, Tao Zhou, Renwei Li, Lin Han
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Publication number: 20160112247Abstract: 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: ApplicationFiled: December 22, 2015Publication date: April 21, 2016Inventors: Katherine Zhao, Ying Chen, Qianglin Quintin Zhao, Tao Zhou, Renwei Li, Lin Han
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Patent number: 9253082Abstract: 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: GrantFiled: October 11, 2012Date of Patent: February 2, 2016Assignee: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Ying Chen
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Patent number: RE47260Abstract: 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: GrantFiled: January 7, 2015Date of Patent: February 26, 2019Assignee: Futurewei Technologies, Inc.Inventors: Qianglin Quintin Zhao, Huaimo Chen