公开(公告)号：US11539626B2

公开(公告)日：2022-12-27

申请号：US16876784

申请日：2020-05-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi Huang ,  Yong Huang ,  Yong Tian ,  Linda Dunbar

IPC: H04L47/125 ,  H04L67/10 ,  H04L67/1023 ,  H04L12/46 ,  H04L45/00 ,  H04L67/1001 ,  H04L47/31 ,  H04L41/50

Abstract: 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.

公开(公告)号：US11336715B2

公开(公告)日：2022-05-17

申请号：US16898150

申请日：2020-06-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue Yin ,  Shibi Huang ,  Feng Li ,  Hong Zhou

IPC: H04L67/1001 ,  H04L12/64 ,  H04L67/1029 ,  H04L67/1008 ,  H04L67/1027 ,  H04L47/70 ,  H04L67/51 ,  H04L45/00 ,  H04L47/125 ,  H04L45/64

Abstract: 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.

公开(公告)号：US10686874B2

公开(公告)日：2020-06-16

申请号：US15282765

申请日：2016-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yue Yin ,  Shibi Huang ,  Feng Li ,  Hong Zhou

IPC: H04L29/08 ,  H04L12/64 ,  H04L12/911 ,  H04L12/721 ,  H04L12/803 ,  H04L12/715

Abstract: 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.

公开(公告)号：US20150207636A1

公开(公告)日：2015-07-23

申请号：US14635819

申请日：2015-03-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weihua Qiao ,  Xinfa Wang ,  Cheng Chen ,  Shiyong Tan ,  Yan Li ,  Shibi Huang ,  Peng Zhao ,  Yuxin Mao

IPC: H04L12/14 ,  H04M15/00

CPC classification number: H04L12/1407 ,  H04L47/10 ,  H04L47/14 ,  H04L47/20 ,  H04L47/2475 ,  H04M15/66

Abstract: 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.

Abstract translation: 提供了一种执行策略控制，策略和计费执行功能（PCEF）的方法和系统，可以解决没有应用功能（AF）的应用服务流不能执行策略控制的问题。 在该方法中，PCRF在从PCEF订阅应用事件之后，接收由PCEF发送的应用事件的信息; 并且PCRF根据关于应用事件的信息为应用的服务流生成控制策略。 在本发明中，PCEF将获取的关于应用事件的信息发送给PCRF，使得即使不涉及AF，PCRF仍然可以根据包括关于应用事件等的信息的策略上下文来生成控制策略 。

公开(公告)号：US08923121B2

公开(公告)日：2014-12-30

申请号：US13714272

申请日：2012-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi Huang ,  Peng Zhao ,  Yuxin Mao ,  Shiyong Tan ,  Weihua Qiao ,  Yan Li

IPC: G01R31/08 ,  H04W4/20 ,  H04L12/14 ,  H04L12/54 ,  H04L29/06 ,  H04J3/24 ,  H04W4/00

CPC classification number: H04W4/20 ,  H04L12/14 ,  H04L12/1428 ,  H04L12/1457 ,  H04L12/56 ,  H04L65/1016 ,  H04L65/80

Abstract: A control method, system and function entity for reporting a bearer event of a signaling IP flow are provided. Flow identifier information may be generated for a signaling IP flow and a media IP flow, to unify a mechanism for reporting a signaling path status and a mechanism for reporting a bearer event of a media IP flow. In the method, the mechanism for reporting a signaling path status is not limited by the parameter of Flow Usage.

Abstract translation: 提供了用于报告信令IP流的承载事件的控制方法，系统和功能实体。 可以为信令IP流和媒体IP流生成流标识符信息，以统一用于报告信令路径状态的机制和用于报告媒体IP流的承载事件的机制。 在该方法中，用于报告信令路径状态的机制不受Flow Usage的参数限制。

公开(公告)号：US20200344153A1

公开(公告)日：2020-10-29

申请号：US16927585

申请日：2020-07-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dongjun Wu ,  Changjiang Yan ,  Shibi Huang

IPC: H04L12/707 ,  H04L12/24 ,  H04L12/725 ,  H04L12/26

Abstract: 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.

公开(公告)号：US10735309B2

公开(公告)日：2020-08-04

申请号：US14924499

申请日：2015-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dongjun Wu ,  Changjiang Yan ,  Shibi Huang

IPC: H04L12/24 ,  H04L12/707 ,  H04L12/725 ,  H04L12/26

Abstract: 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.

公开(公告)号：USRE47858E1

公开(公告)日：2020-02-11

申请号：US14584662

申请日：2014-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dongming Zhu ,  Hui Li ,  Jiongjiong Gu ,  Baofeng Zhang ,  Shibi Huang

IPC: H04W72/02 ,  H04W36/00 ,  H04L29/06

Abstract: 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.

公开(公告)号：US10397120B2

公开(公告)日：2019-08-27

申请号：US15280682

申请日：2016-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi Huang ,  Yong Tian ,  Linda Dunbar

IPC: G01R31/08 ,  H04L12/851 ,  H04L12/24 ,  H04L29/08 ,  H04L12/725 ,  H04M15/00 ,  H04L12/859 ,  H04L12/721

Abstract: 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.

公开(公告)号：US10110490B2

公开(公告)日：2018-10-23

申请号：US15243108

申请日：2016-08-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Yizhou Li ,  Hui Ni ,  Shibi Huang

IPC: H04L12/741 ,  H04L12/46 ,  H04L12/715 ,  H04L29/12

Abstract: 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.