Patents by Inventor Shibi Huang
Shibi Huang 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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Patent number: 11539626Abstract: A method, an apparatus, and a system are provided for load balancing of a service chain. The method includes: receiving, by a flow classifier, a service chain selection and control policy sent by a policy and charging rules function (PCRF) unit; hashing, by the flow classifier according to a hash quantity, a service flow corresponding to a service chain identifier, to obtain multiple subflows, and adding the service chain identifier and hashing factors to packets of the subflows, where different subflows correspond to different hashing factors; and sending, by the flow classifier, the packets of the subflows after the service chain identifier and the hashing factors are added, to a forwarding device.Type: GrantFiled: May 18, 2020Date of Patent: December 27, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Shibi Huang, Yong Huang, Yong Tian, Linda Dunbar
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Patent number: 11336715Abstract: The present invention discloses a load balancing method, apparatus and system. In the present invention, a network management and control center of a basic network system interacts with a service management and control center of a network service system, and determines a load balancing policy according to entity information about service function execution entities in the network service system; and the network management and control center generates an execution flow table according to the load balancing policy, and controls a network device to perform a load balancing operation according to the execution flow table. The present invention is applicable to a network service system comprising a service function execution entity in a transparent mode, so as to implement load balancing processing on the service function execution entity in transparent mode in the network service system.Type: GrantFiled: June 10, 2020Date of Patent: May 17, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Yue Yin, Shibi Huang, Feng Li, Hong Zhou
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Patent number: 11240159Abstract: Disclosed are a flow classifier, policy and charging rules function unit and controller. The flow classifier receives a service chain selection control policy sent by a policy and charging rules function unit. The service chain selection control policy includes a corresponding relation between an application type and an identifier of a service chain. The service chain is a path formed by a forwarding device and a value-added service device both of which a service flow with the application type needs to pass through. The flow classifier detects the service flow with the application type based on the service chain selection control policy and adds the identifier of the service chain to a message of the service flow. The flow classifier sends the message of the service flow with the added identifier of the service chain to a forwarding device directly connected to the flow classifier.Type: GrantFiled: August 1, 2019Date of Patent: February 1, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Shibi Huang, Yong Tian, Linda Dunbar
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Publication number: 20200351204Abstract: A method, an apparatus, and a system are provided for load balancing of a service chain. The method includes: receiving, by a flow classifier, a service chain selection and control policy sent by a policy and charging rules function (PCRF) unit; hashing, by the flow classifier according to a hash quantity, a service flow corresponding to a service chain identifier, to obtain multiple subflows, and adding the service chain identifier and hashing factors to packets of the subflows, where different subflows correspond to different hashing factors; and sending, by the flow classifier, the packets of the subflows after the service chain identifier and the hashing factors are added, to a forwarding device.Type: ApplicationFiled: May 18, 2020Publication date: November 5, 2020Inventors: Shibi HUANG, Yong HUANG, Yong TIAN, Linda DUNBAR
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Publication number: 20200344153Abstract: A packet processing method including a traffic classifier receives a first packet; the traffic classifier determines, in policy information in the traffic classifier and according to a first filtering rule that matches the first packet, a first service identifier that matches the first filtering rule, and an address, which matches the first filtering rule, of a first service routing trigger. The traffic classifier sends a second packet to the first service routing trigger. The policy information includes a filtering rule, an address of a service routing trigger, and a service identifier corresponding to the filtering rule. The filtering rule is used to identify a packet, and the service identifier is used to represent a sequence of a service node that processes the packet. The second packet is formed by adding the first service identifier to the first packet.Type: ApplicationFiled: July 13, 2020Publication date: October 29, 2020Applicant: Huawei Technologies Co., Ltd.Inventors: Dongjun Wu, Changjiang Yan, Shibi Huang
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Publication number: 20200304564Abstract: The present invention discloses a load balancing method, apparatus and system. In the present invention, a network management and control center of a basic network system interacts with a service management and control center of a network service system, and determines a load balancing policy according to entity information about service function execution entities in the network service system; and the network management and control center generates an execution flow table according to the load balancing policy, and controls a network device to perform a load balancing operation according to the execution flow table. The present invention is applicable to a network service system comprising a service function execution entity in a transparent mode, so as to implement load balancing processing on the service function execution entity in transparent mode in the network service system.Type: ApplicationFiled: June 10, 2020Publication date: September 24, 2020Inventors: Yue YIN, Shibi HUANG, Feng LI, Hong ZHOU
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Patent number: 10735309Abstract: A packet processing method includes: a traffic classifier receives a first packet; the traffic classifier determines, in policy information in the traffic classifier and according to a first filtering rule that matches the first packet, a first service identifier that matches the first filtering rule, and an address, which matches the first filtering rule, of a first service routing trigger. The traffic classifier sends a second packet to the first service routing trigger. Where the policy information includes: a filtering rule, an address of a service routing trigger, and a service identifier corresponding to the filtering rule. Where the filtering rule is used to identify a packet, and the service identifier is used to represent a sequence of a service node that processes the packet. Where the second packet is formed by adding the first service identifier to the first packet.Type: GrantFiled: October 27, 2015Date of Patent: August 4, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Dongjun Wu, Changjiang Yan, Shibi Huang
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Publication number: 20200228618Abstract: This application relates to the field of communications technologies, and discloses a content delivery method, a device, and a system, to resolve an existing problem of traffic chaos in Http redirection. A specific solution includes: receiving, by a first access gateway, a configuration command, and configuring a correspondence between an identifier and a traffic diversion policy according to the configuration command; receiving, by the first access gateway, a first access request, where the first access request carries a first identifier, and the first access request is used to request content to be accessed by a terminal device; when a traffic diversion policy corresponding to the first identifier exists in the correspondence, diverting, by the first access gateway, the first access request to a first server; and receiving, by the first access gateway, content returned by the first server, and sending the content to the terminal device. This application is applied to a content delivery process.Type: ApplicationFiled: March 30, 2020Publication date: July 16, 2020Inventors: Dongjun WU, Shibi HUANG, Dong LIN
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Patent number: 10700891Abstract: A method of implementing a service chain in a service chain-enabled domain network includes: receiving, by an intermediate service node (SN), an extended first Border Gateway Protocol (BGP) packet from a downstream SN that is on a service chain path and immediately adjacent to the intermediate SN, the extended first BGP packet including a service chain path identifier identifying the service chain path and a first service chain path including a service chain path from an ingress SN to the intermediate SN, determining an upstream SN that is on the first service chain path and immediately adjacent to the intermediate SN, and sending an extended second BGP packet to the upstream SN, the extended second BGP packet including the service chain path identifier and a second service chain path including a service chain path from the ingress SN to the upstream SN.Type: GrantFiled: December 8, 2017Date of Patent: June 30, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Weiguo Hao, Qiandeng Liang, Shibi Huang
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Patent number: 10686874Abstract: The present invention discloses a load balancing method, apparatus and system. In the present invention, a network management and control center of a basic network system interacts with a service management and control center of a network service system, and determines a load balancing policy according to entity information about service function execution entities in the network service system; and the network management and control center generates an execution flow table according to the load balancing policy, and controls a network device to perform a load balancing operation according to the execution flow table. The present invention is applicable to a network service system comprising a service function execution entity in a transparent mode, so as to implement load balancing processing on the service function execution entity in transparent mode in the network service system.Type: GrantFiled: September 30, 2016Date of Patent: June 16, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Yue Yin, Shibi Huang, Feng Li, Hong Zhou
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Patent number: 10673760Abstract: A method, an apparatus, and a system are provided for load balancing of a service chain. The method includes: receiving, by a flow classifier, a service chain selection and control policy sent by a policy and charging rules function PCRF unit; hashing, by the flow classifier according to a hash quantity, a service flow corresponding to a service chain identifier, to obtain multiple subflows, and adding the service chain identifier and hashing factors to packets of the subflows, where different subflows correspond to different hashing factors; and sending, by the flow classifier, the packets of the subflows after the service chain identifier and the hashing factors are added, to a forwarding device.Type: GrantFiled: October 27, 2016Date of Patent: June 2, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Shibi Huang, Yong Huang, Yong Tian, Linda Dunbar
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Publication number: 20190356596Abstract: Disclosed are a flow classifier, policy and charging rules function unit and controller. The flow classifier receives a service chain selection control policy sent by a policy and charging rules function unit. The service chain selection control policy includes a corresponding relation between an application type and an identifier of a service chain. The service chain is a path formed by a forwarding device and a value-added service device both of which a service flow with the application type needs to pass through. The flow classifier detects the service flow with the application type based on the service chain selection control policy and adds the identifier of the service chain to a message of the service flow. The flow classifier sends the message of the service flow with the added identifier of the service chain to a forwarding device directly connected to the flow classifier.Type: ApplicationFiled: August 1, 2019Publication date: November 21, 2019Inventors: Shibi HUANG, Yong TIAN, Linda DUNBAR
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Patent number: 10397120Abstract: Disclosed are a flow classifier, policy and charging rules function unit and controller. The flow classifier receives a service chain selection control policy sent by a policy and charging rules function unit. The service chain selection control policy includes a corresponding relation between an application type and an identifier of a service chain. The service chain is a path formed by a forwarding device and a value-added service device both of which a service flow with the application type needs to pass through. The flow classifier detects the service flow with the application type based on the service chain selection control policy and adds the identifier of the service chain to a message of the service flow. The flow classifier sends the message of the service flow with the added identifier of the service chain to a forwarding device directly connected to the flow classifier.Type: GrantFiled: September 29, 2016Date of Patent: August 27, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Shibi Huang, Yong Tian, Linda Dunbar
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Patent number: 10306073Abstract: A method and a system for exercising policy control, a policy and charging enforcement function (PCEF) are provided, which can solve the problem that no policy control can be exercised over application service flows without an application function (AF). In the method, a PCRF receives information about an application event sent by a PCEF after subscribing the application event from the PCEF; and the PCRF generates a control policy for a service flow of the application according to the information about the application event. In the present invention, the PCEF sends the obtained information about the application event to the PCRF, so that even when no AF is involved, the PCRF can still generate a control policy according to policy contexts including the information about the application event and the like.Type: GrantFiled: March 2, 2015Date of Patent: May 28, 2019Assignee: Huawei Technologies Co., LtdInventors: Weihua Qiao, Xinfa Wang, Cheng Chen, Shiyong Tan, Yan Li, Shibi Huang, Peng Zhao, Yuxin Mao
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Patent number: 10110490Abstract: A method and an apparatus for forwarding a packet, where a first network virtualization edge (NVE) receives a first packet sent by a first tenant end system (TES), where a destination Internet Protocol (IP) address of the first packet is an IP address of a second TES, a destination media access control (MAC) address of the first packet is a gateway MAC address corresponding to the first NVE. The first NVE acquires an access virtual network identifier (VN ID) and a layer 3 virtual private network (VPN) instance identifier of the first TES, and searches a routing and forwarding table, to obtain an entry corresponding to the IP address of the second TES. Then the first NVE encapsulates the first packet into a network virtualization overlays (NVO3) packet according to the entry, and forwards the NVO3 packet to a second NVE to forward to the second TES.Type: GrantFiled: August 22, 2016Date of Patent: October 23, 2018Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Weiguo Hao, Yizhou Li, Hui Ni, Shibi Huang
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Publication number: 20180294985Abstract: A method and a system for exercising policy control, a policy and charging enforcement function (PCEF) are provided, which can solve the problem that no policy control can be exercised over application service flows without an application function (AF). In the method, a PCRF receives information about an application event sent by a PCEF after subscribing the application event from the PCEF; and the PCRF generates a control policy for a service flow of the application according to the information about the application event. In the present invention, the PCEF sends the obtained information about the application event to the PCRF, so that even when no AF is involved, the PCRF can still generate a control policy according to policy contexts including the information about the application event and the like.Type: ApplicationFiled: June 14, 2018Publication date: October 11, 2018Inventors: Weihua QIAO, Xinfa WANG, Cheng CHEN, Shiyong TAN, Yan LI, Shibi HUANG, Peng ZHAO, Yuxin MAO
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Patent number: 9967175Abstract: When there is a change from a first service chain instance path to a second service chain instance path, the head-end node of the second service chain instance path is notified to include information that specifies the second service chain instance path in data packets to be routed on the second service chain instance path. That information is used to route those data packets until the nodes in the second service chain instance path complete installation of a new steering policy. When those nodes have installed the new steering policy, the information that specifies the second service chain instance path may no longer be included in data packets, and the steering policy is then used to route the data packets.Type: GrantFiled: February 17, 2015Date of Patent: May 8, 2018Assignee: FUTUREWEI TECHNOLOGIES, INC.Inventors: Linda Dunbar, Young Lee, Shibi Huang
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Publication number: 20180102919Abstract: A method of implementing a service chain in a service chain-enabled domain network includes: receiving, by an intermediate service node (SN), an extended first Border Gateway Protocol (BGP) packet from a downstream SN that is on a service chain path and immediately adjacent to the intermediate SN, the extended first BGP packet including a service chain path identifier identifying the service chain path and a first service chain path including a service chain path from an ingress SN to the intermediate SN, determining an upstream SN that is on the first service chain path and immediately adjacent to the intermediate SN, and sending an extended second BGP packet to the upstream SN, the extended second BGP packet including the service chain path identifier and a second service chain path including a service chain path from the ingress SN to the upstream SN.Type: ApplicationFiled: December 8, 2017Publication date: April 12, 2018Inventors: Weiguo Hao, Qiandeng Liang, Shibi Huang
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Publication number: 20180041351Abstract: A method and a system for exercising policy control, a PCEF, and a PCRF are provided, which can solve the problem that no policy control can be exercised over application service flows without an application function (AF). The method includes of the following steps: a PCRF receiving information about an application event sent by a PCEF; and the PCRF generating a control policy for a service flow of the application according to the information about the application event, and delivering the control policy to the PCEF. In the present invention, the PCEF sends the obtained information about the application event to the PCRF, so that the PCRF can generate a control policy according to policy contexts including the information about the application event and the like, so as to exercise an effective policy control over the QoS guarantee, charging and gating of the service flow.Type: ApplicationFiled: October 17, 2017Publication date: February 8, 2018Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Weihua Wei, Xinfa Wang, Cheng Chen, Shiyong Tan, Yan Li, Shibi Huang, Peng Zhao, Yuxin Mao
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Patent number: RE47858Abstract: A method and a system for maintaining session continuity, in which the system includes a Handover Source Function (HOSF), a Handover Destination Function (HODF), a Handover Anchor Function-Control Plane (HOAF-CP) and a Handover Anchor Function-User Plane (HOAF-UP). The method includes a first user establishing a connection through the HOSF with the HOAF-CP and the HOAF-UP which correspond to a second user, so as to establish a session with the second user. The method further includes that, during session handover, the HODF that corresponds to the HOSF establishing another connection with the HOAF-CP and HOAF-UP though which the first user continues the session with the second user, so as to maintain the session continuity. When access address or access technology of the terminal changes, or even the terminal changes during a session, the method and the system can logically replace the connection before the handover with a new connection to ensure the session continuity.Type: GrantFiled: December 29, 2014Date of Patent: February 11, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Dongming Zhu, Hui Li, Jiongjiong Gu, Baofeng Zhang, Shibi Huang