WO2019076292A1 - Procédé et dispositif de gestion, élément de réseau de plan de commande de passerelle, système de communication, et support de stockage - Google Patents

Procédé et dispositif de gestion, élément de réseau de plan de commande de passerelle, système de communication, et support de stockage Download PDF

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Publication number
WO2019076292A1
WO2019076292A1 PCT/CN2018/110402 CN2018110402W WO2019076292A1 WO 2019076292 A1 WO2019076292 A1 WO 2019076292A1 CN 2018110402 W CN2018110402 W CN 2018110402W WO 2019076292 A1 WO2019076292 A1 WO 2019076292A1
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WIPO (PCT)
Prior art keywords
network element
plane network
service
user plane
gateway
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PCT/CN2018/110402
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English (en)
Chinese (zh)
Inventor
周晟
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中兴通讯股份有限公司
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Publication of WO2019076292A1 publication Critical patent/WO2019076292A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5041—Network service management, e.g. ensuring proper service fulfilment according to agreements characterised by the time relationship between creation and deployment of a service
    • H04L41/5051—Service on demand, e.g. definition and deployment of services in real time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1004—Server selection for load balancing
    • H04L67/101—Server selection for load balancing based on network conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Definitions

  • the present application relates to the field of communications, for example, to a management method and apparatus, a gateway control plane network element, a communication system, and a storage medium.
  • the communication network includes a packet network that provides access services for users and a shared data network that provides service services for users, and the packet network and the shared data network are connected through a gateway.
  • the processing of user data streams is concentrated in the gateway of the shared data network, resulting in complicated functions of the gateway device and poor scalability.
  • the control plane of the gateway is highly coupled with the user plane, which is not conducive to the smooth evolution of the core network. This is because the frequency of the user plane expansion is higher than that of the control plane.
  • the tight coupling causes the user plane of the control plane to expand synchronously, and the device update period is short. increase.
  • the related technology splits the gateway control plane network element and the gateway user plane network element, and the gateway control plane network element is responsible for the control plane function of the gateway, including load sharing and gateway users.
  • the function of the face network element, the allocation of the IP address and the tunnel identity, the policy and the charging control function, the gateway user plane network element is responsible for the related functions of the gateway user plane, including data flow identification and deep packet detection, and buffering of the downlink paging data. And other functions.
  • each gateway user plane network element As an independent functional entity may be different. For example, some gateway user plane network elements support deep packet information. Detecting, but some are not supported; however, when the gateway user plane network element selects the gateway user plane network element, it only selects according to the load of the gateway user plane network element, and a selection error occurs, for example, deep packet detection is required.
  • the processed user service packets are assigned gateway user plane network elements that do not support deep packet inspection.
  • the management method and device, the gateway control plane network element, the communication system, and the storage medium provided by the embodiment of the present application can avoid the allocation caused by the gateway control plane unit in the related art to allocate the gateway user plane unit to the service packet according to the dynamic balancing rule. The wrong situation.
  • the embodiment of the present application provides a service packet management method, including: a gateway control plane network element receives a service packet requested by a user, and obtains a service capability requirement of the service packet; and according to a service capability of the gateway user plane network element, Allocating a gateway user plane network element to the service packet; triggering a gateway user plane network element allocated to the service packet to process the service packet.
  • the service capability of the gateway user plane network element includes a version of the supported network communication protocol and whether the deep packet detection capability is supported.
  • the embodiment of the present application further provides a service packet management device, which is configured on a gateway control plane network element, and includes: a receiving module, configured to receive a service packet of a service requested by a user; and a processing module, configured to acquire the service packet
  • the service capability requirement is to allocate a gateway user plane network element to the service packet according to the service capability of the gateway user plane network element; the management module is configured to trigger the gateway user plane network element allocated for the service packet, and process the Business message.
  • the embodiment of the present application further provides a gateway control plane network element, where the gateway control plane network element includes a processor, a memory, and a communication bus; the communication bus is configured to implement connection communication between the processor and the memory; The device is configured to execute at least one program stored in the memory to implement the service message management method provided by the present application.
  • the gateway control plane network element includes a processor, a memory, and a communication bus; the communication bus is configured to implement connection communication between the processor and the memory;
  • the device is configured to execute at least one program stored in the memory to implement the service message management method provided by the present application.
  • the embodiment of the present application further provides a communication system, including: a packet network and a shared data network, where the packet network and the shared data network are connected through a gateway, where the gateway includes a gateway control plane network element and a gateway user plane network element.
  • the gateway control plane network element is a gateway control plane network element provided by the application.
  • the embodiment of the present application further provides a computer readable storage medium storing at least one program, at least one program executable by at least one processor, to implement the foregoing service message management method.
  • the embodiment of the present application further provides a processor, where the processor is configured to run a program, where the program is executed to execute the foregoing service packet management method.
  • FIG. 1 is a flowchart of a service packet management method according to Embodiment 1 of the present application.
  • FIG. 2 is a schematic structural diagram of a service packet management apparatus according to Embodiment 1 of the present application.
  • FIG. 3 is a schematic structural diagram of a gateway control plane network element according to Embodiment 1 of the present application.
  • FIG. 4 is a schematic diagram of networking of a communication system according to Embodiment 2 of the present application.
  • FIG. 5 is a schematic diagram of another networking of the communication system according to Embodiment 2 of the present application.
  • FIG. 6 is a flowchart of a management method provided by Embodiment 2 of the present application.
  • FIG. 7 is a first flowchart of acquiring service capability according to Embodiment 2 of the present application.
  • FIG. 8 is a second flowchart of acquiring service capability according to Embodiment 2 of the present application.
  • FIG. 9 is a first flowchart of a user plane network element for allocating a gateway according to Embodiment 2 of the present application.
  • FIG. 10 is a second flowchart of allocating a gateway user plane network element according to Embodiment 2 of the present application.
  • FIG. 11 is a third flowchart of a user plane network element for allocating gateways according to Embodiment 2 of the present application.
  • the service capability of the present application refers to the device capability of the gateway user plane network element, including whether to support deep packet inspection, supported communication protocol versions (IPv4 and IPv6), and the like.
  • the service packet management method provided in the embodiment of the present application includes the steps S101 to the step. S104.
  • step S101 the gateway control plane network element receives the service packet of the service requested by the user.
  • the gateway control plane network element receives the service packet through the device in the packet network, and the service packet is generated when the terminal requests the task, and carries the service parameter, for example, what data needs to be acquired; Capability requirements parameters, such as whether deep packet processing is required, what version of communication protocol is required, and so on.
  • step S102 the service capability requirement of the service packet is obtained.
  • step S103 a gateway user plane network element is allocated to the service packet according to the service capability of the gateway user plane network element.
  • step S104 the gateway user plane network element allocated for the service packet is triggered to process the service packet.
  • the step S103 includes: when the service capability requirement of the service packet needs to support the first service capability, searching for the capability of the first service according to the service capability of the network element of the gateway user plane.
  • the gateway user plane network element is selected as the gateway user plane network element allocated by the service packet from the gateway user plane network element supporting the first service capability according to the selection rule.
  • the step S103 includes: when the service capability requirement of the service packet is that the second service capability is not required, the second service is not supported according to the service capability of the network element of the gateway user plane.
  • the gateway user plane network element of the capability is selected according to the selection rule, and the target gateway user plane network element is selected as the gateway user plane network element allocated by the service packet from the gateway user plane network element that does not support the second service capability.
  • step S103 includes: acquiring a load of a gateway user plane network element when the service capability requirement of the service packet is that the third service capability is not required to be supported; and selecting all gateway users according to the selection rule.
  • the target gateway user plane network element is selected as the gateway user plane network element allocated by the service packet.
  • the selection rule is a load balancing rule.
  • the service packet management method shown in FIG. 1 further includes: acquiring a service capability of the gateway user plane network element by using a preset manner.
  • the preset manner includes one of the following manners.
  • the gateway control plane network element initiates a connection with the gateway user plane network element
  • the gateway user plane acquires and records the service capability of the gateway user plane network element.
  • the gateway user plane network element sends the service capability of the gateway user plane network element after the connection is initiated to the gateway control plane network element, and the gateway control plane network element receives and records the service capability of the gateway user plane network element.
  • the service packet management apparatus 2 which is provided in the gateway control plane network element, includes a receiving module 21, a processing module 22, a management module 23, and an obtaining module 24.
  • the receiving module 21 is configured to receive a service packet of a service requested by the user.
  • the processing module 22 is configured to obtain the service capability requirement of the service packet, and allocate a gateway user plane network element to the service packet according to the service capability of the gateway user plane network element.
  • the management module 23 is configured to trigger a gateway user plane network element allocated for the service packet, and process the service packet.
  • the processing module 22 is configured to: when the service capability requirement of the service packet needs to support the first service capability, search and support the first service according to the service capability of the gateway user plane network element.
  • the gateway user plane network element of the capability is selected according to the selection rule, and the target gateway user plane network element is selected as the gateway user plane network element allocated by the service packet from the gateway user plane network element supporting the first service capability.
  • the processing module 22 is configured to: when the service capability requirement of the service packet does not need to support the second service capability, according to the service capability of the gateway user plane network element, the search does not support the foregoing The gateway user plane network element of the second service capability; according to the selection rule, the target user plane network element is selected from the gateway user plane network element that does not support the second service capability, and is used as the gateway user plane network element of the service packet allocation. .
  • the processing module 22 is configured to: when the service capability requirement of the service packet is that the third service capability is not required to be supported, obtain the load of the gateway user plane network element; according to the selection rule, all the In the gateway user plane network element, the target gateway user plane network element is selected as the gateway user plane network element allocated by the service packet.
  • the service packet management apparatus further includes: an obtaining module 24, configured to acquire a service capability of the gateway user plane network element by using a preset manner.
  • the preset manner includes one of the following manners.
  • the gateway control plane network element initiates a connection with the gateway user plane network element
  • the gateway user plane acquires and records the service capability of the gateway user plane network element.
  • the gateway user plane network element sends the service capability of the gateway user plane network element after the connection is initiated to the gateway control plane network element, and the gateway control plane network element receives and records the service capability of the gateway user plane network element.
  • the gateway control plane network element provided by the embodiment of the present application includes: a processor 31, a memory 32, and a communication bus 33, wherein the communication bus 33 is configured to implement the processor 31 and Connection communication between the memories 32; the processor 31 is arranged to execute at least one program stored in the memory 32 to implement the service message management method in all embodiments of the present application.
  • the present application further provides a communication system, including: a packet network and a shared data network, where the packet network is connected to the shared data network through a gateway, where the gateway includes a gateway control plane network element and The gateway user plane network element, wherein the gateway control plane network element is a gateway control plane network element as shown in FIG.
  • the management method and device, the gateway control plane network element, and the communication system provided by the embodiment obtain the service capability requirement of the service packet after receiving the service packet requested by the user, and then according to the gateway user plane.
  • the service capability of the network element is to allocate a gateway user plane network element to the service packet.
  • the gateway control plane network element needs to allocate the service user plane network element to the service packet according to the service capability requirement of the service packet.
  • the service capability of the gateway user plane network element is allocated, so that the gateway user plane network element allocated for the service packet can implement the service corresponding to the service packet, and the gateway control plane unit in the related technology is prevented from being the service packet according to the dynamic balancing rule.
  • the allocation error caused by the assignment of the gateway user plane unit improves the user experience.
  • EPS Evolved Packet System
  • 3GPP 3rd Generation Partnership Project
  • EPS is a type of packet network.
  • the EPS includes an Evolved Universal Terrestrial Radio Access Network (E-UTRAN), a Mobility Management Entity (MME), and a Serving Gateway (S).
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • MME Mobility Management Entity
  • S Serving Gateway
  • -GW Packet Data Network Gateway
  • HSS Home Subscriber Server
  • PCRF Policy and Charging Rules Function
  • the MME is used for control plane related operations such as mobility management, non-access stratum signaling processing, and user mobility management context management;
  • the S-GW forwards data between the E-UTRAN and the P-GW, and is used for The paging waits for data to be buffered;
  • the P-GW is a border gateway between the EPS and the Packet Data Network Gateway (PDN), which is used for PDN access and forwarding data between the EPS and the PDN.
  • PDN Packet Data Network Gateway
  • the PCRF is responsible for the formulation of policy decisions and charging rules, interacts with the operator's IP service entity, provides gates based on service data flow, quality of service control and charging rules to the gateway, and implements the policies and calculations of the PCRF on the bearer side. Fee rules.
  • control plane function of the gateway is highly coupled with the user plane function, which is not conducive to the smooth evolution of the core network. Therefore, a networking model in which the control plane function is separated from the user plane function is provided, as shown in FIG. .
  • the architecture shown in FIG. 5 splits the gateway (S-GW/P-GW) in FIG. 4 into a control plane function (Controller Plane Function, CPF, which is recorded as a gateway control plane network element) and a user plane function (User Plane).
  • CPF Controller Plane Function
  • UPF User Plane
  • the CPF is responsible for the control plane functions of the S/P-GW, including load sharing, UPF selection, IP address and tunnel identification assignment, policy, and accounting. Control and other functions.
  • the UPF includes a Serving Gateway User Plane Function (SUPF) and a Packet Data Network Gateway User Plane Function (PUPF), which respectively correspond to the user planes of the S-GW and the P-GW.
  • SUPF Serving Gateway User Plane Function
  • PUPF Packet Data Network Gateway User Plane Function
  • Function responsible for the relevant functions of the user plane of the S/P-GW, including data stream identification and deep packet inspection, QoS processing and bearer binding, and buffering of downlink paging data
  • each gateway user plane network element acts as an independent functional entity, the capabilities may be different.
  • some gateway user plane network elements support deep packet inspection (Deep). Packet Inspection (DPI), while others do not support it; however, when the gateway user plane network element selects the gateway user plane network element, it only selects according to the load of the gateway user plane network element, and a selection error occurs, for example,
  • DPI deep packet inspection
  • the user service packets processed by the deep packet detection are assigned gateway user plane network elements that do not support deep packet inspection.
  • the CPF allocates PUPF for the service packets of the user, so the UPFs involved below are all PUPFs.
  • the method provided in this embodiment includes step S601 and step S602.
  • step S601 the CPF acquires and stores the service capability of the PPUPF.
  • the description of whether the service capability supports the DPI and the IP protocol version is taken as an example.
  • the PUPF initiates the connection to the CPF.
  • the PUPF sends the DPI capability of the PUPF to the CPF.
  • the CPF records the DPI capability of the PUPF.
  • the CPF initiates the connection establishment to the PUPF.
  • the PUPF informs the CPF of the DPI capability of the PUPF.
  • CPF records the DPI capabilities of PUPF.
  • step S602 the CPF allocates a PUPF to the service message of the access user according to the PUPF service capability.
  • the PUPF selects a PUPF from all PUPFs that support the capability to forward the packet.
  • the PUPF can be selected from the PUPF that supports the capability to forward the packet, or the PUPF can be selected from the PUPF that does not support the capability. Text forwarding.
  • step S601 in FIG. 6 it includes two implementations, as shown in FIG. 7 and FIG.
  • step S601 may include step S701 and step S702.
  • step S701 the PUPF registers with the CPF, and the registration request carries the service capability of the PUPF.
  • the registration request carries the normal PUPF identifier and carries the PUPF service capability.
  • step S702 the CPF saves the service capability of the PUPF.
  • the CPF completes the registration of the PUPF according to the registration request, and extracts the service capability of the PUPF carried in the registration request, and stores it.
  • step S601 may further include steps S801 to S804.
  • step S801 the PUPF registers with the CPF.
  • the CPF After the CPF is deployed and powered on, it registers with the PUPF, and its registration request carries the regular CPF identifier.
  • step S802 the CPF queries the service capability of the PUPF.
  • the CPF After registering with the PUPF, the CPF actively queries the service capabilities of the PUPF.
  • step S803 the PUPF reports the service capability.
  • PUPF When receiving a query request, PUPF invokes its service capability and reports its service capability through the query response.
  • step S804 the CPF saves the service capability of the PUPF.
  • the CPF After receiving the query response, the CPF extracts the service capability of the PUPF carried in the query response and stores it.
  • IP protocol version PUPF1 stand by IPv4 PUPF2 stand by IPv6 PUPF3 not support IPv4 PUPF4 not support IPv6 —— ——————
  • the CPF when receiving the service packet of the user, the CPF can allocate a suitable PUPF to the service packet according to the service capability requirement of the service packet, as shown in FIG. 9 to FIG.
  • step S602 includes steps S901 to S904.
  • step S901 the UE sends a service message 1.
  • the service packet 1 is sent to the CPF.
  • the service capability requirement of the service packet 1 is "support DPI capability and support IPv4.”
  • step S902 the CPF finds a PUPF that satisfies the service capability requirement.
  • the service capability requirement of service packet 1 is "support DPI capability and support IPv4". Since IPv6 is compatible with IPv4, CPF satisfies the conditions of PUPF1 and PUPF2 according to the results of Table 1.
  • step S903 the CPF selects the PUPF according to the load balancing rule.
  • the CPF acquisition step S902 searches for the PUPF that satisfies the condition in the result, that is, the load of the PUPF1 and the PUPF2, and then selects the PUPF according to the load balancing rule. If the PUPF2 load is low, the PUPF2 is selected as the PUPF for processing the service packet 1.
  • step S904 the CPF establishes a connection with the corresponding PUPF.
  • the access process is completed.
  • the PUPF receives the service packet 1 and performs DPI processing and forwarding processing.
  • step S602 includes steps S1001 through S1004.
  • step S1001 the UE transmits a service message 2.
  • the service packet 2 is sent to the CPF.
  • the service capability requirement of the service packet 2 is “do not support DPI capability and support IPv6”.
  • step S1002 the CPF finds a PUPF that satisfies the service capability requirement.
  • the service capability requirement of service packet 2 is "does not support DPI capability and supports IPv6". Therefore, the CPF finds that the result according to Table 1 is that PUPF4 meets the conditions.
  • step S1003 the CPF selects the PUPF according to the load balancing rule.
  • the CPF acquisition step S1002 searches for the PUPF that satisfies the condition in the result, and then selects the PUPF according to the load balancing rule. If the PUPF4 load is low, the PUPF4 is selected as the PUPF for processing the service packet 2.
  • step S1004 the CPF establishes a connection with the corresponding PUPF.
  • the access process is completed. After the access is complete, the PUPF does not perform DPI processing and directly forwards the packet after receiving the service packet 2.
  • step S602 includes steps S1101 through S1104.
  • step S1101 the UE transmits a service message 3.
  • the UE When the UE needs to perform service 3, it sends a service packet 3 to the CPF.
  • the service capability requirement of the service packet 3 is "support IPv6.”
  • step S1102 the CPF finds a PUPF that satisfies the service capability requirement.
  • the service capability requirement of service packet 3 is "support IPv6". Therefore, the CPF finds that the conditions according to Table 1 are that PUPF2 and PUPF4 satisfy the condition.
  • step S1103 the CPF selects the PUPF according to the load balancing rule.
  • the CPF acquisition step S1102 searches for the PUPF that satisfies the condition in the result, and then selects the PUPF according to the load balancing rule. If the PUPF4 load is low, the PUPF4 is selected as the PUPF for processing the service packet 3.
  • step S1104 the CPF establishes a connection with the corresponding PUPF.
  • the access process is completed. After the access is complete, the PUPF does not perform DPI processing and directly forwards the packet after receiving the service packet 3.
  • the present application also provides a computer readable storage medium storing at least one program, at least one program being executed to implement all of the service message management methods provided by the present application.
  • the gateway control plane network element after receiving the service packet requested by the user, the gateway control plane network element acquires the service capability requirement of the service packet, and then According to the service capability of the gateway user plane network element, the gateway user plane network element is allocated for the service packet; in the method, the gateway control plane network element needs to be based on the service packet when the gateway user plane network element is allocated for the service packet.
  • the service capability requirement and the service capability of the gateway user plane network element are allocated, so that the gateway user plane network element allocated for the service packet can implement the service corresponding to the service packet, and avoids the gateway control plane unit according to the dynamic balance rule in the related technology.
  • the allocation error caused by the gateway user plane unit is allocated for the service packet, which improves the user experience.
  • Each of the modules or steps of the above-described embodiments of the present application may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • they may be implemented by program code executable by a computing device such that they may be stored in a computer storage medium such as a Read Only Memory/Random Access Memory (ROM/RAM), a disk.
  • ROM/RAM Read Only Memory/Random Access Memory
  • the optical disc is executed by a computing device, and in some cases, the steps shown or described may be performed in an order different from that herein, or they may be separately fabricated into a plurality of integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Therefore, the application is not limited to any particular combination of hardware and software.

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Abstract

Un mode de réalisation de la présente invention concerne un procédé et un dispositif de gestion, un élément de réseau de plan de commande de passerelle, un système de communication, et un support de stockage. Le procédé comprend les étapes suivantes : après avoir reçu, d'un utilisateur, un paquet de service demandant un service, un élément de réseau de plan de commande de passerelle acquiert une capacité de service demandée par le paquet de service ; et attribue, au paquet de service, et selon des capacités de service d'éléments de réseau de plan utilisateur de passerelle, un élément de réseau de plan utilisateur de passerelle.
PCT/CN2018/110402 2017-10-16 2018-10-16 Procédé et dispositif de gestion, élément de réseau de plan de commande de passerelle, système de communication, et support de stockage WO2019076292A1 (fr)

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CN113597020A (zh) * 2020-04-30 2021-11-02 华为技术有限公司 一种通信方法及相关设备
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CN115696223A (zh) * 2021-07-29 2023-02-03 华为技术有限公司 一种组播通信方法及装置

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