CN114079932A - 5G network quality guarantee system and method - Google Patents
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Abstract
The invention provides a 5G network quality assurance system and a method, wherein the system comprises a first-level service orchestrator deployed on a national core cloud, a second-level service orchestrator deployed on a provincial/local-city-level core cloud, and a network centralized unit deployed on the provincial/local-city-level core cloud and a convergence layer edge cloud, and is characterized in that the first-level service orchestrator and/or the second-level service orchestrator are arranged to receive a QoS assurance application instruction sent by an Internet SP/CP client and authenticate the QoS assurance application instruction; if the QoS guarantee application instruction passes the authentication, the primary service orchestrator and/or the secondary service orchestrator generate QoS guarantee parameters according to the QoS guarantee application instruction and send the QoS guarantee parameters to the network centralized unit; the network centralized unit provides a QoS guarantee strategy for the terminal according to the QoS guarantee parameters, provides a low-cost simple and easy lightweight quality guarantee system and a fast-deployed network quality guarantee scheme, and improves the service quality of the network.
Description
Technical Field
The invention relates to the field of internet, in particular to a 5G network quality guarantee system and a method.
Background
With the high-speed development of the mobile internet, the requirements of users on the service quality of the mobile internet of a 5G network and the service quality of a wired network are higher and higher, and with the development of services, more challenges are continuously provided for the network, the increase of service traffic leads to the aggravation of network load, slow network reaction, insufficient link bandwidth, and continuously increased expansion investment.
QoS (Quality of Service) refers to a network that can provide better Service capability for specified network communication by using various basic technologies, and is a security mechanism of the network, which is a technology for solving the problems of network delay and congestion. In the prior art, the service quality guarantee of the 5G network is based on a 5G slicing technology, the 5G network is divided into a plurality of virtual networks, each virtual network is set to independently undertake part or all of network functions, one or more network services are flexibly provided to serve the network according to the requirements of users, and reliable QoS quality guarantee is provided.
However, the 5G slicing technique not only needs to deploy slicing schemes in each network domain such as a wireless network, a bearer network, a core network, etc., but also needs to unify interface protocols between each network domain, and the deployment and operation difficulty of the QoS quality assurance scheme is large.
Disclosure of Invention
In view of the above problems, embodiments of the present invention provide a 5G network quality assurance system and method, provide a low-cost, simple and easy lightweight quality assurance system and a rapid deployment network quality assurance scheme, and improve the service quality of a network.
In a first aspect, the invention provides a 5G network quality assurance system, which comprises a first-level service orchestrator deployed on a national core cloud, a second-level service orchestrator deployed on a provincial/local-city core cloud, and a network concentration unit deployed on a convergence layer edge cloud, wherein the first-level service orchestrator is connected with the second-level service orchestrator, and the first-level service orchestrator and the second-level service orchestrator are respectively connected with an Internet SP/CP client and the network concentration unit; the network centralized unit is connected with a terminal;
the primary service orchestrator and/or the secondary service orchestrator are used for receiving a QoS guarantee application instruction sent by the Internet SP/CP client and authenticating the QoS guarantee application instruction;
if the QoS guarantee application instruction passes the authentication, the primary service orchestrator and/or the secondary service orchestrator are/is used for generating QoS guarantee parameters according to the QoS guarantee application instruction and sending the QoS guarantee parameters to the network centralized unit;
and the network centralized unit is used for providing a QoS guarantee strategy for the terminal according to the QoS guarantee parameters.
Optionally, the network concentration unit includes:
the NEF network capability open function network element is used for receiving the QoS guarantee parameter and sending the QoS guarantee parameter to the PCF;
the PCF policy control function network element is used for generating a policy control and charging PCC policy according to a preset rule and the QoS guarantee parameter and sending the PCC policy to the SMF;
and the SMF session management function network element and the UPF user plane function network element are used for creating a QoS Flow according to the PCC strategy and loading the specified service used by the terminal on the QoS Flow.
The SMF session management function network element is deployed in the provincial/local-city-level core cloud, and is used for connecting the UPF user plane function network element and controlling the network moving data service;
the UPF user plane function network element is deployed in the convergence layer edge cloud, and is used for connecting the network-moving transmission convergence node and bearing the network-moving data service of the network-moving transmission convergence node.
Optionally, the system further includes a multi-service convergence gateway deployed on a convergence layer edge cloud;
the multi-service convergence gateway comprises a multi-service convergence gateway U surface and a multi-service convergence gateway C surface;
the multi-service convergence gateway U surface is deployed in the convergence layer edge cloud, is connected with the UPF user plane functional network element, and enables the mobile network data service and the fixed network data service to be accessed to the convergence layer edge cloud;
and the multi-service convergence gateway C surface is deployed in the provincial/local city level core cloud and is used for controlling the fixed network data service.
Optionally, the primary service orchestrator and the secondary service orchestrator are both provided with API interfaces and connected with an internet SP/CP client through the API interfaces;
the API is used for receiving a QoS guarantee application instruction sent by the Internet SP/CP client, wherein the QoS guarantee application instruction is generated by the Internet SP/CP client according to a service request input by a user.
In a second aspect, the invention provides a 5G network quality assurance method, which is applied to a 5G network quality assurance system, wherein the system comprises a primary service orchestrator deployed on a national core cloud, a secondary service orchestrator deployed on a provincial/local-city-level core cloud, and a network concentration unit deployed on the provincial/local-city-level core cloud and on a convergence layer edge cloud, wherein the primary service orchestrator is connected with the secondary service orchestrator, and the primary service orchestrator and the secondary service orchestrator are respectively connected with an Internet SP/CP client and the network concentration unit; the network centralized unit is connected with a terminal;
the method comprises the following steps:
the primary service orchestrator and/or the secondary service orchestrator receive a QoS guarantee application instruction sent by the Internet SP/CP client and authenticate the QoS guarantee application instruction;
if the QoS guarantee application instruction passes the authentication, the primary service orchestrator and/or the secondary service orchestrator generate QoS guarantee parameters according to the QoS guarantee application instruction, and send the QoS guarantee parameters to the network centralized unit;
and the network centralized unit provides a QoS guarantee strategy for the terminal according to the QoS guarantee parameters.
Optionally, the network centralized unit includes an NEF network capability opening function network element, a PCF policy control function network element, an SMF session management function network element, and a UPF user plane function network element;
correspondingly, the network central unit provides the QoS guarantee policy for the terminal according to the QoS guarantee parameter, including:
the NEF network capability open function network element receives the QoS guarantee parameter and sends the QoS guarantee parameter to the PCF;
the PCF policy control function network element generates a policy control and charging PCC policy according to a preset rule and the QoS guarantee parameter and sends the PCC policy to the SMF;
and the SMF session management function network element and the UPF user plane function network element are used for creating a QoS Flow according to the PCC strategy and loading the specified service used by the terminal on the QoS Flow.
The SMF session management function network element is deployed in the provincial/local-city-level core cloud, and is used for connecting the UPF user plane function network element and controlling the network moving data service;
the UPF user plane function network element is deployed in the convergence layer edge cloud, and is used for connecting the network-moving transmission convergence node and bearing the network-moving data service of the network-moving transmission convergence node.
Optionally, the 5G network quality assurance system further includes a multi-service convergence gateway deployed on the edge cloud;
the multi-service convergence gateway comprises a multi-service convergence gateway U surface and a multi-service convergence gateway C surface;
the multi-service convergence gateway U surface is deployed in the convergence layer edge cloud, is connected with the UPF user plane functional network element, and enables the mobile network data service and the fixed network data service to be accessed to the convergence layer edge cloud;
and the multi-service convergence gateway C surface is deployed in the provincial/local city level core cloud and is used for controlling the fixed network data service.
Optionally, the primary service orchestrator and the secondary service orchestrator are both provided with API interfaces and connected with an internet SP/CP client through the API interfaces;
and the primary service orchestrator and/or the secondary service orchestrator receive a QoS guarantee application instruction sent by the Internet SP/CP client through the API, wherein the QoS guarantee application instruction is generated by the Internet SP/CP client according to a service request input by a user.
The embodiment of the invention aims to provide a 5G network quality guarantee system and a method, the system comprises a first-level service orchestrator deployed on a national core cloud, a second-level service orchestrator deployed on a provincial/local-city-level core cloud, and network concentration units deployed on the provincial/local-city-level core cloud and on a convergence layer edge cloud, wherein the first-level service orchestrator and/or the second-level service orchestrator are arranged to receive a QoS guarantee application instruction sent by an Internet SP/CP client and authenticate the QoS guarantee application instruction; if the QoS guarantee application instruction passes the authentication, the primary service orchestrator and/or the secondary service orchestrator generate QoS guarantee parameters according to the QoS guarantee application instruction and send the QoS guarantee parameters to the network centralized unit; the network centralized unit provides a QoS guarantee strategy for the terminal according to the QoS guarantee parameters, provides a low-cost and simple and easy lightweight quality guarantee system, is beneficial to rapidly deploying a network quality guarantee scheme, and improves indexes of network such as time delay, packet loss rate and the like.
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Fig. 1 is a first schematic structural diagram of a 5G network quality assurance system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a 5G network quality assurance system according to an embodiment of the present invention;
fig. 3 is a first schematic flow chart of a 5G network quality assurance method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network centralized unit according to an embodiment of the present invention;
fig. 5 is a second flowchart of a 5G network quality assurance method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "and/or" is merely an association describing an associated object, meaning that three relationships may exist, for example, and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprises A, B and C" and "comprises A, B, C" means that all three of A, B, C comprise, "comprises A, B or C" means that one of A, B, C comprises, "comprises A, B and/or C" means that any 1 or any 2 or 3 of A, B, C comprises.
It should be understood that in the present invention, "B corresponding to a", "a corresponds to B", or "B corresponds to a" means that B is associated with a, and B can be determined from a. Determining B from a does not mean determining B from a alone, but may be determined from a and/or other information. And the matching of A and B means that the similarity of A and B is greater than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
With the high-speed development of the mobile internet, the requirements of users on the service quality of the mobile internet of a 5G network and the service quality of a wired network are higher and higher, and with the development of services, more challenges are continuously provided for the network, the increase of service traffic leads to the aggravation of network load, slow network reaction, insufficient link bandwidth, and continuously increased expansion investment. In order to realize new development concept and high-quality development and improve the operational benefits, operators and third-party cooperative manufacturers need to obtain a better balance among business, network quality guarantee effect and cost investment, and bring greater benefits with lower investment. Based on mobile internet services and wired network services provided by a 5G network, the whole social digital transformation is accelerated, the combination of the network, the platform and industry applications is tighter, the network performance, the platform capability and the Service requirements are tightly coupled, and the 5G network is required to provide differentiated and customized SLA (Service Level Agreement for short) services according to the characteristics and the Service requirements of different industries.
The existing 5G slice technology is a networking on demand mode, and can allow an operator to cut out a plurality of virtualized end-to-end networks on a unified infrastructure, and each slice is logically isolated from a wireless network to a bearer network and then to a core network, and is adapted to various types of service applications. Taking the core network as an example, NFV separates software and hardware components from conventional network element devices. The hardware is uniformly deployed by a general server, and the software part is born by different network functions, so that the assembly of services is flexibly realized.
However, compared with a Quality of Service (QoS) guarantee scheme, the 5G slicing scheme requires that a slicing scheme is deployed in each network domain NSSMF of a wireless network, a carrier network, and a core network, and an interface protocol between the network domains NSSMF is required to be engaged and parameter-converted, an interface protocol between the NSMF and each network domain NSSMF also requires a docking negotiation, and the slicing scheme is relatively high in complexity, workload, and cost, belongs to a heavy-weight scheme, and accordingly reduces a profit margin of a network operator. In addition, the current 5G slicing scheme and the edge cloud scheme at the base station side mainly meet the requirement of network moving, and a fixed network broadband user cannot be considered temporarily.
In order to solve the technical problems, the invention provides a 5G network quality assurance system and a method, wherein the system comprises a first-level service orchestrator deployed on a national core cloud, a second-level service orchestrator deployed on a provincial/local-city-level core cloud, and a network concentration unit deployed on the provincial/local-city-level core cloud and a convergence layer edge cloud, and the system receives a QoS assurance application instruction sent by an Internet SP/CP client by setting the first-level service orchestrator and/or the second-level service orchestrator and authenticates the QoS assurance application instruction; if the QoS guarantee application instruction passes the authentication, the primary service orchestrator and/or the secondary service orchestrator generate QoS guarantee parameters according to the QoS guarantee application instruction and send the QoS guarantee parameters to the network centralized unit; the network centralized unit provides a QoS guarantee strategy for the terminal according to the QoS guarantee parameters, provides a low-cost and simple and easy lightweight quality guarantee system, is beneficial to rapidly deploying a network quality guarantee scheme, and improves indexes of network such as time delay, packet loss rate and the like. The 5G network quality guarantee method provided by the embodiment of the invention realizes 5G wireless air interface quality guarantee through 5QI configuration, realizes air interface quality guarantee of fine-granularity data streams of specific service specific users, meets index requirements such as priority, time delay, packet loss rate and the like, can meet quality guarantee requirements of most industrial applications, particularly enhanced mobile broadband (eMBB) service applications, is a low-cost, simple and easy lightweight quality guarantee scheme, and can be deployed quickly. The method is beneficial to solving the contradiction of insufficient supply side capacity, such as inflexible and inexact business requirements of industry customers in the 5G era, unstable network quality guarantee capacity of operators and insignificant guarantee effect, and can quickly realize the openness and high value change of the network capacity of the operators.
Fig. 1 is a first schematic structural diagram of a 5G network quality assurance system according to an embodiment of the present invention. As shown in fig. 1, the 5G network quality assurance system 10 includes a first-level service orchestrator 11 deployed on a national core cloud, a second-level service orchestrator 12 deployed on a provincial/local-city-level core cloud, and a network concentration unit 13 deployed on the provincial/local-city-level core cloud and a convergence layer edge cloud, where the first-level service orchestrator 11 is connected to the second-level service orchestrator 12, and the first-level service orchestrator 11 and the second-level service orchestrator 12 are respectively connected to an internet SP/CP client and the network concentration unit 13; the network concentration unit 13 is connected to a terminal. The concrete description is as follows:
in the embodiment of the invention, a primary service orchestrator 11 and a secondary service orchestrator 12 are respectively connected with an internet SP/CP client and a network centralized unit 13, and the primary service orchestrator 11 and/or the secondary service orchestrator 12 authenticates a QoS guarantee application instruction after receiving the QoS guarantee application instruction sent by the internet SP/CP client; if the QoS guarantee application instruction passes the authentication, the primary service orchestrator 11 and/or the secondary service orchestrator 12 generates a QoS guarantee parameter according to the QoS guarantee application instruction, and sends the QoS guarantee parameter to the network centralized unit 13, so that the network centralized unit 13 provides a QoS guarantee strategy for the terminal according to the QoS guarantee parameter.
In the embodiment of the invention, the core cloud is a cloud computing service center consisting of server clusters with strong storage and computing capabilities, and has strong computing and storage capabilities. The core cloud is divided into a national core cloud and a provincial/local-city-level core cloud, and is convenient for using various services provided by the core cloud according to self requirements, wherein the provincial/local-city-level core cloud is supported by the edge cloud and mutually cooperates with the edge cloud to rapidly and elastically provide transparent cloud computing services for users. Specifically, a first-level service orchestrator 11 is deployed on a national core cloud, a second-level service orchestrator 12 is deployed on a provincial/local-city core cloud, and the service orchestrators are deployed in a hierarchical manner and are connected to the core cloud to perform cloud network coordination. The edge cloud in this embodiment is composed of server nodes distributed in different networks and regions, provides corresponding auxiliary functions for the core cloud, and cooperates with the core cloud to quickly and flexibly provide cloud computing services for users. The second-level service orchestrator 12 realizes the comprehensive guarantee of fixed and mobile QoS, and provides calls to the first-level service orchestrator 11 and the Internet CP/SP open API interface, so that the province/local city QoS guarantee capability is open to the outside.
The 5G network quality assurance system provided in the above embodiment receives a QoS guarantee application instruction sent by an internet SP/CP client and authenticates the QoS guarantee application instruction by setting the first-stage service orchestrator and/or the second-stage service orchestrator, the second-stage service orchestrator including the first-stage service orchestrator deployed on the national core cloud, the second-stage service orchestrator deployed on the province/local core cloud, and the network concentration unit deployed on the province/local core cloud and the convergence layer edge cloud; if the QoS guarantee application instruction passes the authentication, the primary service orchestrator and/or the secondary service orchestrator generate QoS guarantee parameters according to the QoS guarantee application instruction and send the QoS guarantee parameters to the network centralized unit; the network centralized unit provides a QoS guarantee strategy for the terminal according to the QoS guarantee parameters, provides a low-cost and simple and easy lightweight quality guarantee system, is beneficial to rapidly deploying QoS quality guarantee schemes, and improves indexes of network such as time delay and packet loss rate.
Fig. 2 is a schematic structural diagram of a 5G network quality assurance system according to an embodiment of the present invention. As shown in fig. 2, the service orchestrator deployed in the national core cloud 21 is a first-level service orchestrator, and the service orchestrator deployed in the provincial/local city core cloud 22 is a second-level service orchestrator. A service Control plane Network element is also deployed in the national core cloud 21, and a Policy Control Function (PCF) Network element, a Network capacity Exposure Function (NEF) Network element, and a Session Management Function (SMF) Network element are also deployed in the provincial/local core cloud 22. The Network elements deployed in the edge cloud 23 of the convergence layer in the city include a fixed Network gateway U-Plane MSG-U24 and a User Plane Function Network element (UPF) 25 of a Network concentration unit, where the MSG-U24 is respectively connected to a Content Delivery Network (CDN) server 26 and a cloud service server 27 deployed in the edge cloud. The MSG-U24 is further connected to a Core Router (CR) 28, the CR 28 is connected to a backbone Router, and the CR 28 is further connected to an Internet Data Center 29(Internet Data Center, IDC) deployed in the provincial/prefectural Core cloud.
In some embodiments, the network moving service gateway includes a network moving service gateway U plane and a network moving service gateway C plane, where the network moving service gateway U plane is a UPF and the network moving service gateway C plane includes network elements such as SMF; the multi-service convergence gateway comprises a multi-service convergence gateway U surface and a multi-service convergence gateway C surface, wherein the data services of the mobile network and the fixed network are uniformly accessed by the multi-service convergence gateway U surface at the convergence node. The network-moving service gateway can adopt distributed deployment, and a U surface of the network-moving service gateway can be deployed in an edge cloud of a convergence layer, is used for connecting a network-moving transmission convergence node, bears network-moving data services of the network-moving transmission convergence node, and can access a content source of the edge cloud or the internet through the U surface of the multi-service convergence gateway; the network moving service gateway C surface can be deployed in province/local city level core cloud, and is used for connecting the network moving service gateway U surface and controlling the network moving data service. The control layer is uniformly responsible for a C surface of the multi-service convergence gateway which is centrally deployed in the province or the city. The convergence gateway U surface can be deployed in a convergence layer edge cloud, is connected with the network moving service gateway U surface and enables the network moving data service and the fixed network data service to be accessed to the convergence layer edge cloud; the multi-service convergence gateway C-plane may be deployed in a provincial/local-city-level core cloud, and is used for controlling fixed network data services.
In the embodiment of the invention, the requirements of edge cloud access, safety, charging, QoS guarantee and the like are well met through the network moving service gateway and the multi-service convergence gateway which are deployed on the edge cloud of the convergence layer. An operator gives full play to the advantages of abundant network moving and fixed network access network resources and localized support services, provides a cloud network integrated product based on IAAS layer edge cloud resources (calculation, storage and network) and multi-service access network resources for a terminal third party, and realizes the capability opening and change of an aggregation layer edge cloud and an access network. And moreover, the lightweight edge cloud is deployed at the aggregation node, the cloud computing capability of the edge cloud is opened to a third party, the third party deploys various services such as high-definition video, cloud games, live video, instant messaging and the like at the edge cloud of the aggregation layer, the network moving and fixed network flow is unloaded at the edge cloud of the aggregation layer, the service content of the third party is accessed nearby, the user experience is improved, and a new service cooperation mode is created. The convergence layer edge cloud and the access network realize cloud network cooperation, the advantage of cloud network integration is exerted, and the requirement of low-delay edge cloud service is met. The edge cloud and the core cloud cooperate, and the edge cloud serves as an extension of the core cloud and provides processing of local scene perception close to a user. Because the number of transmission hops between the convergence layer edge cloud and the mobile network and fixed network terminal users is small, the transmission delay is low, and a good network environment is provided for guaranteeing the QoS experience of the mobile network and fixed network users.
For example, a network operator may allow a third party to access an infrastructure of the convergence layer edge cloud for application development, deploy various applications, such as cloud games, internet of things applications, high-definition videos, and the like, in the convergence layer edge cloud, perform cloud network coordination in an area close to a target user, and provide a stable high-quality service with low time delay and large bandwidth for the user. And accessing the mobile network service gateway and the multi-service convergence gateway by deploying the content containing the third-party hotspot application in the edge cloud of the convergence layer. For mobile and fixed network service requests for accessing hot content distributed to the convergence layer edge cloud, the convergence layer edge cloud provides service nearby, and bandwidth occupation of a network above a mobile network service gateway and a multi-service convergence gateway is reduced. In addition, for some specific applications, such as video monitoring, security monitoring, big data analysis and the like, a large amount of data needs to be stored at the edge of the network, and a third party application of the convergence layer edge cloud can perform analysis and preprocessing, abstract, compress and cache basic data, and then transmit the basic data to the core cloud. This will greatly reduce the data traffic to the core cloud, thus saving transmission network bandwidth.
The 5G network quality assurance system provided by the embodiment realizes the comprehensive bearing of the fixed and mobile services and the comprehensive guarantee of the QoS of the fixed and mobile services, achieves the effect of the consistency of user experience, is beneficial to guaranteeing the consistency of the fixed and mobile service experience, and meets the requirement of the unified guarantee of the mobile and fixed users which are focused by third-party cooperation manufacturers.
In some embodiments, the primary service orchestrator 11 and the secondary service orchestrator 12 are both provided with API interfaces, and are connected with the internet SP/CP client through the API interfaces. Illustratively, the SP (service provider) in the internet SP/CP refers to a direct provider of mobile internet service content application service, and is responsible for developing and providing services suitable for mobile phone users according to the requirements of the users; the CP (content provider) in the internet SP/CP, i.e., "content providing", refers to a mobile data service content provider, or a mobile value-added service content provider. And the API is used for receiving a QoS guarantee application instruction sent by the Internet SP/CP client, wherein the QoS guarantee application instruction is generated by the Internet SP/CP client according to a service request input by a user. Specifically, a user submits a service request to an internet SP/CP client, for example, a request for ordering VIP service by a general user of an Tencent video, and the internet SP/CP client generates a QoS guarantee application instruction according to the service request. The QoS guarantee application instruction comprises a QoS guarantee configuration scheme of the network moving service related to the service request, namely the VIP service application service subscription. The internet SP/CP client sends the QoS guarantee application instruction to the primary service orchestrator 11 and/or the secondary service orchestrator 12 through the API interface, so that the primary service orchestrator 11 and/or the secondary service orchestrator 12 authenticates the QoS guarantee application instruction. If the QoS guarantee application instruction passes the authentication, the primary service orchestrator 11 and/or the secondary service orchestrator 12 generates a QoS guarantee parameter according to the QoS guarantee application instruction, and sends the QoS guarantee parameter to the network concentration unit 13, so that the network concentration unit 13 provides a QoS guarantee policy for the terminal according to the QoS guarantee parameter.
Fig. 3 is a first flowchart of a 5G network quality assurance method according to an embodiment of the present invention. On the basis of the 5G network quality assurance system provided in the embodiment of fig. 1, the 5G network quality assurance method includes the following steps:
s301, the primary service orchestrator 11 and/or the secondary service orchestrator 12 receive a QoS guarantee application instruction sent by the Internet SP/CP client, and authenticate the QoS guarantee application instruction.
S302, if the QoS guarantee application instruction passes the authentication, the primary service orchestrator 11 and/or the secondary service orchestrator 12 generates QoS guarantee parameters according to the QoS guarantee application instruction, and sends the QoS guarantee parameters to the network centralized unit 13.
S303, the network central unit 13 provides the QoS guarantee policy for the terminal according to the QoS guarantee parameter.
The contents in steps S201 to S203 are consistent with the contents in the 5G network quality assurance system in the embodiment of fig. 1, and are not described again here.
The method for guaranteeing quality of a 5G network provided in the above embodiment realizes quality guarantee of an air interface of a fine-granularity data stream of a specific user of a specific service by realizing quality guarantee of a 5G wireless air interface, meets index requirements such as priority, delay, packet loss rate, and the like, meets quality requirements of most industrial applications, especially eMBB applications, and is a low-cost, simple, easy and lightweight quality guarantee scheme. The method can be deployed quickly, is beneficial to solving the contradiction of insufficient supply side capacity, such as inflexible and inexact business requirements of industry customers in the 5G era and unstable network quality guarantee capacity, insubstantial guarantee effect and the like, and can quickly realize the openness and high value change of the network capacity of the operator.
Fig. 4 is a schematic structural diagram of a network centralized unit according to an embodiment of the present invention. As shown in fig. 4, the network concentrating unit 13 includes a NEF network capability opening function network element 131, a PCF policy control function network element 132, an SMF session management function network element, and a UPF user plane function network element 133.
Fig. 5 is a second flowchart of a 5G network quality assurance method according to an embodiment of the present invention. On the basis of the network centralized unit structure provided in fig. 4, the step S303 of the network centralized unit 13 providing the QoS securing policy for the terminal according to the QoS securing parameter specifically includes the following steps:
s501, the NEF network capability opening function network element receives the QoS guarantee parameter and sends the QoS guarantee parameter to the PCF.
In the embodiment of the invention, after receiving the QoS guarantee parameter, the NEF converts the QoS guarantee parameter into a specified message format and sends the message format to the NEF. Specifically, the NEF maps the corresponding QoS application content to the Npcf interface parameter of the PCF, so that the PCF invokes the relevant QoS provisioning policy.
Specifically, the NEF is used as an essential network element in the vertical industry and 5G network perception interaction to realize the transmission of service perception information, and the NEF externally connects to a service orchestrator to feed back relevant information of specified service perception. The NWDAF (Network Data analysis Function) functions include Data collection, Data analysis, and Data analysis result feedback. The NWDAF feeds back a specific service sensing MOS (Mean Opinion Score, abbreviated as Mean Opinion Score) to the NEF, and then transmits the NEF to the service orchestrator, so that the service orchestrator adjusts the 5G QoS parameter and the network configuration according to the service provisioning policy. The data information collected by the NWDAF may include, in addition to the traffic-aware MOS score: the service orchestrator may obtain the data analysis result from the NWDAF network element through NEF through "subscribe/notify" or "request/response" two services, and may open the data analysis result of the specified service to the third party vendor through NWDAF/NEF and the service orchestrator.
S502, the PCF generates a policy control and charging PCC policy according to the preset rule and the QoS guarantee parameter and sends the PCC policy to the SMF.
In the embodiment of the invention, the PCF generates the policy control and charging PCC policy according to the preset rule and the QoS guarantee parameter. The preset rule is a predefined rule corresponding to the service requirement corresponding to the QoS guarantee parameter set in the PCF. Specifically, the PCF applies for the content according to the predefined rule of the APP ID in the PCF and the received QoS, where the APP ID is an identification number of the corresponding service application in the service requirement.
S503, the SMF session management function network element and the UPF user plane function network element establish QoS Flow according to the PCC strategy and bear the appointed service used by the terminal on the QoS Flow.
In the embodiment of the invention, the SMF session management function network element and the UPF user plane function network element establish the QoS Flow according to the PCC strategy, and bear the corresponding OTT CP/SP service on the QoS Flow by newly establishing the QoS Flow of the target QoS, thereby realizing the differentiated scheduling of the QoS guarantee capability of the 5G wireless air interface.
Specifically, the implementation of 5G QoS guarantee is performed through the operation on QoS Flow. In a 5G system, and in a PDU (Protocol Data Unit, abbreviated as Protocol Data Unit) session, QoS Flow is the finest granularity to distinguish different QoS guarantee levels. The QoS Flow in 5G is the minimum granularity of end-to-end QoS control, i.e. all data flows on the same data path will get the same QoS guarantee, e.g. scheduling policy, buffer queue management, etc. Different QoS guarantees need different data paths to be provided. The 5G identifies a data path, i.e., a 5G QoS Flow, using QFI (QoS Flow Indicator, QoS Flow Indicator for short). A radio bearer may include multiple QoS flows, one QFI is a QoS Flow, one QoS Flow has only one 5QI id, the QFI value is unique in one PDU session, and the user plane traffic with the same QFI value uses the same forwarding mechanism in the system. QFI-based E2E QoS mechanism for traffic flow differentiation: the Data plane carries corresponding QFI identification, the uplink realizes the mapping and identification from SDF (Service Data Flow, short for Service Data Flow) to QFI by UE identification, and the downlink realizes the mapping and identification from SDF to QFI by UPF.
Illustratively, the 5G QoS Flow is divided into a Non-GBR QoS Flow and a GBR QoS Flow, wherein the Non-GBR QoS Flow is used for carrying services without guaranteed bandwidth requirements and meeting the Non-rigid requirements of resource allocation, and the priority is lower; the GBR QoS Flow is used for carrying the service needing bandwidth guarantee, and the hard requirement guarantee Flow bit rate and the priority of resource allocation are generally higher than those of Non-GBR service. The GBR QoS Flow contains resource types GBR and Delay-critical GBR.
Illustratively, the 5G QoS decision Flow is that there is a QoS Flow based on default QoS rules, and the lifetime is the same as the PDU session. The 5QI of the QoS Flow is initially obtained from the UDM and may be modified by the SMF based on local policy and interaction with the PCF. And then the SMF executes a QoS Flow Binding function, namely the SMF associates the PCC rule issued by the PCF with the corresponding QoS Flow. When the NR finds that the radio resource cannot satisfy the QoS requirement of the QoS Flow, the NR may notify 5GC processing through the Notification Control Flow.
Illustratively, the 5G QoS Flow operation procedure is to establish a PDU session first, specifically including establishment of one or more QoS flows; and updating the PDU session, specifically including session update initiated by the UE and initiated by the network.
Illustratively, the 5G QoS parameters include QoS Flow level parameters and set level QoS parameters. Specifically, the QoS Flow level parameters include a common parameter, a GBR QoS Flow parameter, and a Non-GBR QoS Flow parameter. Wherein the common parameters include 5QI and ARP. A 5QI is a scalar used to represent a reference to a standard set of 5G QoS parameters predefined by 3GPP, i.e. a 5QI represents a set of QoS parameters. The access node maps to the preset standard 5G QoS parameter through the 5QI, and controls the QoS Flow level packet forwarding processing. ARP (Allocation and reservation Priority, abbreviated as Allocation reservation Priority) is used to decide whether to accept or reject the QoS Flow establishment or modification request under the condition of resource restriction, and to decide which QoS Flow to discard under special resource restriction. Including priority, preemption capability flag, and preempted capability. The GBR QoS Flow parameters include Flow Bit Rates, Notification control, and Maximum Packet Loss Rate. Flow Bit Rates comprise: GFBR for guaranteed bit rate and MFBR for maximum bit rate. The Notification control is used to indicate whether RAN Notification is required when the GFBR no longer or satisfies the QoS Flow again within the lifetime of the QoS Flow. And the Maximum Packet Loss Rate is the allowed QoS Flow Maximum message Loss Rate. The Non-GBR QoS Flow parameter comprises Reflective QoS Attribute used for indicating that the traffic Flow carried by the QoS Flow is applicable to Reflective QoS. The set-level QoS parameters comprise a Session-AMBR and a UE-AMBR, wherein the Session-AMBR represents the set maximum rate of all Non-GBR QoS flows of one PDU Session, and the UE-AMBR represents the maximum rate corresponding to the set of all Non-GBR bearers of the UE.
In the method for guaranteeing quality of a 5G network provided in the above embodiment, an interface between an NEF capability opening function and an NWDAF network data analysis function is used to implement transmission of specified service awareness information, assist a third party manufacturer in executing a specified service quality guarantee policy, and implement closed-loop management of QoS quality guarantee for a mobile network service.
On the other hand, an embodiment of the present invention provides a 5G network quality assurance method, which is based on the 5G network quality assurance system 10 described in the foregoing embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A5G network quality assurance system is characterized by comprising a primary service orchestrator deployed on a national core cloud, a secondary service orchestrator deployed on a provincial/local-city core cloud and a network centralized unit, wherein the primary service orchestrator is connected with the secondary service orchestrator, and the primary service orchestrator and the secondary service orchestrator are respectively connected with an Internet SP/CP client and the network centralized unit; the network centralized unit is connected with a terminal;
the primary service orchestrator and/or the secondary service orchestrator are used for receiving a QoS guarantee application instruction sent by the Internet SP/CP client and authenticating the QoS guarantee application instruction;
if the QoS guarantee application instruction passes the authentication, the primary service orchestrator and/or the secondary service orchestrator are/is used for generating QoS guarantee parameters according to the QoS guarantee application instruction and sending the QoS guarantee parameters to the network centralized unit;
and the network centralized unit is used for providing a QoS guarantee strategy for the terminal according to the QoS guarantee parameters.
2. The system according to claim 1, wherein said network concentration unit comprises:
the NEF network capability open function network element is used for receiving the QoS guarantee parameter and sending the QoS guarantee parameter to the PCF;
the PCF policy control function network element is used for generating a policy control and charging PCC policy according to a preset rule and the QoS guarantee parameter and sending the PCC policy to the SMF;
an SMF session management function network element and a UPF user plane function network element, which are used for creating a QoS Flow according to the PCC strategy and loading the specified service used by the terminal on the QoS Flow;
the SMF session management function network element is deployed in the provincial/local city level core cloud, and is used for connecting the UPF user plane function network element and controlling a network moving data service;
the UPF user plane functional network element is deployed in an edge cloud of a convergence layer, and is used for connecting a network-moving transmission convergence node and bearing a network-moving data service of the network-moving transmission convergence node.
3. The system of claim 1, further comprising a multi-service convergence gateway deployed on a convergence layer edge cloud;
the multi-service convergence gateway comprises a multi-service convergence gateway U surface and a multi-service convergence gateway C surface;
the multi-service convergence gateway U surface is deployed in the convergence layer edge cloud, is connected with a UPF user plane functional network element, and enables a mobile network data service and a fixed network data service to be accessed to the convergence layer edge cloud;
and the multi-service convergence gateway C surface is deployed in the provincial/local city level core cloud and is used for controlling the fixed network data service.
4. The system according to any one of claims 1 to 3, wherein the primary service orchestrator and the secondary service orchestrator are each provided with an API interface and are connected with an Internet SP/CP client through the API interfaces;
the API is used for receiving a QoS guarantee application instruction sent by the Internet SP/CP client, wherein the QoS guarantee application instruction is generated by the Internet SP/CP client according to a service request input by a user.
5. A5G network quality assurance method is characterized in that the method is applied to a 5G network quality assurance system, the system comprises a first-level service orchestrator deployed on a national core cloud, a second-level service orchestrator deployed on a provincial/local-city-level core cloud, and a network concentration unit deployed on the provincial/local-city-level core cloud and a convergence layer edge cloud, wherein the first-level service orchestrator is connected with the second-level service orchestrator, and the first-level service orchestrator and the second-level service orchestrator are respectively connected with an Internet SP/CP client and the network concentration unit; the network centralized unit is connected with a terminal;
the method comprises the following steps:
the primary service orchestrator and/or the secondary service orchestrator receive a QoS guarantee application instruction sent by the Internet SP/CP client and authenticate the QoS guarantee application instruction;
if the QoS guarantee application instruction passes the authentication, the primary service orchestrator and/or the secondary service orchestrator generate QoS guarantee parameters according to the QoS guarantee application instruction, and send the QoS guarantee parameters to the network centralized unit;
and the network centralized unit provides a QoS guarantee strategy for the terminal according to the QoS guarantee parameters.
6. The method of claim 5, wherein the network convergence unit comprises a NEF network capability opening function network element, a PCF policy control function network element, an SMF session management function network element, and a UPF user plane function network element;
correspondingly, the network central unit provides the QoS guarantee policy for the terminal according to the QoS guarantee parameter, including:
the NEF network capability open function network element receives the QoS guarantee parameter and sends the QoS guarantee parameter to the PCF;
the PCF policy control function network element generates a policy control and charging PCC policy according to a preset rule and the QoS guarantee parameter and sends the PCC policy to the SMF;
the SMF session management function network element and the UPF user plane function network element are used for creating a QoS Flow according to the PCC strategy and loading the specified service used by the terminal on the QoS Flow;
the SMF session management function network element is deployed in the province/local city level core cloud, and is used for connecting a UPF user plane function network element and controlling a network moving data service;
the UPF user plane functional network element is deployed in an edge cloud of a convergence layer, and is used for connecting a network-moving transmission convergence node and bearing a network-moving data service of the network-moving transmission convergence node.
7. The method of claim 5, wherein the 5G network quality assurance system further comprises a multi-service convergence gateway deployed on a convergence layer edge cloud;
the multi-service convergence gateway comprises a multi-service convergence gateway U surface and a multi-service convergence gateway C surface;
the multi-service convergence gateway U surface is deployed in a convergence layer edge cloud, is connected with a UPF user surface functional network element, and enables a mobile network data service and a fixed network data service to be accessed to the convergence layer edge cloud;
and the multi-service convergence gateway C surface is deployed in the provincial/local city level core cloud and is used for controlling the fixed network data service.
8. The method according to any one of claims 5 to 7, wherein the primary service orchestrator and the secondary service orchestrator are each provided with an API interface and are connected with an Internet SP/CP client through the API interfaces;
and the primary service orchestrator and/or the secondary service orchestrator receive a QoS guarantee application instruction sent by the Internet SP/CP client through the API, wherein the QoS guarantee application instruction is generated by the Internet SP/CP client according to a service request input by a user.
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