CN114079932B - 5G network quality assurance system and method - Google Patents
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- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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Abstract
The invention provides a 5G network quality assurance system and method, the system includes a first grade business orchestrator disposed on the national core cloud, a second grade business orchestrator disposed on the provincial/local city grade core cloud, and a network centralization unit disposed on the provincial/local city grade core cloud and convergence layer edge cloud, the QoS assurance application instruction sent by the Internet SP/CP client is received by setting the first grade business orchestrator and/or the second grade business orchestrator, and the QoS assurance application instruction is authenticated; 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 centralization unit provides QoS guarantee strategy for the terminal according to QoS guarantee parameters, a low-cost simple and feasible lightweight quality guarantee system and a rapidly deployed network quality guarantee scheme are provided, and the service quality of the network is improved.
Description
Technical Field
The invention relates to the field of Internet, in particular to a 5G network quality assurance system and method.
Background
With the high-speed development of the mobile internet, the requirements of users on the mobile internet service quality of the 5G network and the service quality of the wired network are higher and higher, and with the development of services, more challenges are continuously presented to the network, and the increase of service flow causes the increase of network load, slow network response, insufficient link bandwidth and continuous increase of capacity expansion investment.
QoS (Quality of Service ) refers to a network that can utilize various basic technologies to provide better service capability for specified network communications, and is a security mechanism of the network, and is a technology for solving the problems of network delay and congestion. The service quality guarantee of the 5G network in the prior art is based on a 5G slicing technology, the 5G network is divided into a plurality of virtual networks, each virtual network is independently set to bear part or all of network functions, one or more network services are flexibly provided for network services according to the requirements of users, and reliable QoS quality guarantee is provided.
However, the 5G slicing technology not only needs to deploy slicing schemes in each network domain such as a wireless network, a bearer network, a core network, and the like, but also needs to unify interface protocols among each network domain, so that deployment and operation of QoS quality assurance schemes are difficult.
Disclosure of Invention
In view of the above problems, the embodiments of the present invention provide a system and a method for guaranteeing the quality of a 5G network, which provide a lightweight quality guaranteeing system with low cost, simplicity and easy implementation, and a fast deployment network quality guaranteeing scheme, thereby improving the service quality of the network.
The invention provides a 5G network quality assurance system, which 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 centralization unit deployed 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 centralization unit; the network centralized unit is connected with a terminal;
the first-level service composer and/or the second-level service composer are used for receiving QoS guarantee application instructions sent by the Internet SP/CP client and authenticating the QoS guarantee application instructions;
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 centralization unit;
and the network centralizing unit is used for providing QoS guarantee strategies for the terminal according to the QoS guarantee parameters.
Optionally, the network centralizing unit includes:
a NEF network capability opening function network element for receiving the QoS guarantee parameter and transmitting the QoS guarantee parameter to the PCF;
the PCF policy control function network element is used for generating policy control and charging PCC policies according to preset rules and the QoS guarantee parameters and sending the PCC policies 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 policy and bearing the appointed service used by the terminal on the QoS Flow.
The SMF session management function network element is deployed in the province/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 at the edge cloud of the convergence layer, and is used for connecting with a mobile network transmission convergence node and bearing mobile network data service of the mobile network transmission convergence node.
Optionally, the system further comprises a multi-service convergence gateway deployed on the convergence layer edge cloud;
the multi-service convergence gateway comprises a multi-service convergence gateway U-plane and a multi-service convergence gateway C-plane;
the multi-service convergence gateway U-plane is deployed on the convergence layer edge cloud, is connected with the UPF user plane function network element, and enables the network-moving data service and the fixed network data service to be accessed into the convergence layer edge cloud;
the multi-service convergence gateway C surface is deployed in the province/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 an API interface, and are connected with an internet SP/CP client through the API interface;
the API interface 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 present invention provides a 5G network quality assurance method, applied to a 5G network quality assurance system, where the system includes 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, where the primary service orchestrator is connected to the secondary service orchestrator, and the primary service orchestrator and the secondary service orchestrator are respectively connected to 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 composer and/or the secondary service composer receives a QoS guarantee application instruction sent by the internet SP/CP client, and authenticates 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 centralization unit;
and the network centralizing unit provides QoS guarantee strategy for the terminal according to the QoS guarantee parameter.
Optionally, the network centralized unit includes a network element with an NEF network capability opening function, a PCF policy control function, an SMF session management function and a UPF user plane function;
correspondingly, the network centralization unit provides QoS guarantee strategy for the terminal according to the QoS guarantee parameter, and the method comprises the following steps:
the NEF network capability opening 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 policy control and charging PCC policies according to preset rules and the QoS guarantee parameters and sends the PCC policies 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 policy and bearing the appointed service used by the terminal on the QoS Flow.
The SMF session management function network element is deployed in the province/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 at the edge cloud of the convergence layer, and is used for connecting with a mobile network transmission convergence node and bearing mobile network data service of the mobile network transmission convergence node.
Optionally, the 5G network quality assurance system further comprises a multi-service convergence gateway deployed on an edge cloud;
the multi-service convergence gateway comprises a multi-service convergence gateway U-plane and a multi-service convergence gateway C-plane;
the multi-service convergence gateway U-plane is deployed on the convergence layer edge cloud, is connected with the UPF user plane function network element, and enables the network-moving data service and the fixed network data service to be accessed into the convergence layer edge cloud;
the multi-service convergence gateway C surface is deployed in the province/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 an API interface, and are connected with an internet SP/CP client through the API interface;
and the primary service composer and/or the secondary service composer receive a QoS guarantee application instruction sent by the internet SP/CP client through the API interface, 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 assurance system and method, 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 a convergence layer edge cloud, and the QoS assurance application instruction sent by an Internet SP/CP client is received and authenticated by setting the primary service orchestrator and/or the secondary service orchestrator; 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 centralization unit provides QoS guarantee strategy for the terminal according to QoS guarantee parameters, provides a lightweight quality guarantee system with low cost, simplicity and easiness, is beneficial to rapidly deploying network quality guarantee schemes, and improves indexes such as time delay, packet loss rate and the like of the network.
Drawings
Fig. 1 is a 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 schematic flow chart of a 5G network quality assurance method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a network concentrating unit according to an embodiment of the present invention;
fig. 5 is a second schematic flow chart of a method for guaranteeing quality of a 5G network according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
It should be understood that, in various embodiments of the present invention, the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, 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 invention, "comprising" and "having" and any variations thereof are intended to cover 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 that are expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present invention, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, and means that three relationships may exist, for example, and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising A, B and C", "comprising A, B, C" means that all three of A, B, C comprise, "comprising A, B or C" means that one of the three comprises A, B, C, and "comprising A, B and/or C" means that any 1 or any 2 or 3 of the three comprises A, B, C.
It should be understood that in the present invention, "B corresponding to a", "a corresponding to B", or "B corresponding to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The matching of A and B is that the similarity of A and B is larger than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection" depending on the context.
The technical scheme of the invention is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
With the high-speed development of the mobile internet, the requirements of users on the mobile internet service quality of the 5G network and the service quality of the wired network are higher and higher, and with the development of services, more challenges are continuously presented to the network, and the increase of service flow causes the increase of network load, slow network response, insufficient link bandwidth and continuous increase of capacity expansion investment. In order to realize new development concept and high-quality development and improve the operation benefit, operators and third party cooperators are required to obtain a better balance among business, network quality guarantee effect and cost investment, and bring larger benefits with lower investment. Based on mobile internet service and wired network service provided by the 5G network, the digital transformation of the whole society is speeded up, the combination of the network, the platform and industry application is tighter, the network performance, the platform capability and the business requirement are tightly coupled, and the 5G network is required to provide differentiated and customized SLA (Service Level Agreement, short for service level agreement) service according to the characteristics and the business requirements of different industries.
The existing 5G slicing technology is an on-demand networking mode, so that operators can 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 bearing network to a core network and is suitable for various service applications. Taking the core network as an example, NFV decomposes parts of software and hardware from traditional network element devices. The hardware is deployed uniformly by the universal server, and the software part is born by different network functions, so that the service assembly is realized flexibly.
However, compared with the QoS (Quality of Service ) guarantee scheme, the 5G slicing scheme needs to be deployed for each network domain NSSMF of the wireless network, the bearer network and the core network, and needs to make connection and parameter conversion for an interface protocol between each network domain NSSMF, and interface protocols of the NSMF and each network domain NSSMF also need to make docking negotiation. In addition, the current 5G slicing scheme and the edge cloud scheme at the base station side mainly meet the network moving requirement, 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 method, the system comprises 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 centralization unit deployed on the provincial/local city core cloud and a convergence layer edge cloud, the QoS assurance application instruction sent by an Internet SP/CP client is received by setting the primary service orchestrator and/or the secondary service orchestrator, and the QoS assurance application instruction is authenticated; 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 centralization unit provides QoS guarantee strategy for the terminal according to QoS guarantee parameters, provides a lightweight quality guarantee system with low cost, simplicity and easiness, is beneficial to rapidly deploying network quality guarantee schemes, and improves indexes such as time delay, packet loss rate and the like of the network. According to the 5G network quality assurance method provided by the embodiment of the invention, 5G wireless air interface quality assurance is realized through 5QI configuration, air interface quality assurance of data streams with fine granularity of specific users of specific services is realized, index requirements such as priority, time delay and packet loss rate are met, quality assurance requirements of most industry applications, especially enhanced mobile broadband (eMBB) service applications, can be met, and the method is a lightweight quality assurance scheme with low cost, simplicity and easiness, and can be deployed rapidly. The method is beneficial to solving the contradiction of insufficient supply side capability such as inflexibility and inextensibility of customer differentiated service requirements and network quality guarantee capability of operators in the 5G industry, and the like, and can rapidly realize network capability opening and high-value realization of the operators.
Fig. 1 is a 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 primary service orchestrator 11 deployed on a national core cloud, a secondary service orchestrator 12 deployed on a provincial/local city level core cloud, and a network concentration unit 13 deployed on a provincial/local city level core cloud and a convergence layer edge cloud, wherein the primary service orchestrator 11 is connected to the secondary service orchestrator 12, and the primary service orchestrator 11 and the secondary 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 explanation 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 centralization unit 13, and after receiving a QoS guarantee application instruction sent by the internet SP/CP client, 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 generate QoS guarantee parameters according to the QoS guarantee application instruction, and send the QoS guarantee parameters to the network centralizing unit 13, so that the network centralizing unit 13 provides QoS guarantee strategies for the terminal according to the QoS guarantee parameters.
In the embodiment of the invention, the core cloud is a cloud computing service center formed by 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 province/city level core cloud, and is convenient for using various services provided by the core cloud according to own requirements, wherein the province/city level core cloud cooperates with each other under the support of an edge cloud, and transparent cloud computing services are rapidly and elastically provided for users. Specifically, the primary service orchestrator 11 is deployed on the national core cloud, the secondary service orchestrator 12 is deployed on the provincial/local market level core cloud, and the service orchestrators are deployed in a layered manner and connected to the core cloud for cloud network collaboration. The edge cloud in the embodiment is composed of server nodes distributed in different networks and regions, provides corresponding auxiliary functions for the core cloud, and provides cloud computing services for users rapidly and elastically in cooperation with the core cloud. The secondary service orchestrator 12 realizes the comprehensive guarantee of the fixed shift QoS, and provides the primary service orchestrator 11 and the open API interface of the Internet CP/SP with call, thus realizing the open of the QoS guarantee capability of the province/local market to the outside.
The 5G network quality assurance system provided in the foregoing embodiment is configured to include 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 centralization unit deployed on a provincial/local city level core cloud and a convergence layer edge cloud, receive, by setting the primary service orchestrator and/or the secondary service orchestrator, 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 centralization unit provides QoS guarantee strategy for the terminal according to QoS guarantee parameters, provides a lightweight quality guarantee system with low cost, simplicity and easiness, is beneficial to rapidly deploying QoS quality guarantee schemes, and improves indexes such as time delay, packet loss rate and the like of the network.
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 primary service orchestrator, and the service orchestrator deployed in the provincial/local city core cloud 22 is a secondary service orchestrator. The national core cloud 21 is further provided with a service control plane network element, and the provincial/local city core cloud 22 is further provided with a service control plane network element, a policy control function (Policy Control Function, abbreviated as PCF) network element of a network concentration unit, a network capability opening function (Network Exposure Function, abbreviated as NEF) network element of the network concentration unit, and a session management function (Session Management Function, abbreviated as SMF) network element of the network concentration unit. The network elements deployed in the edge cloud 23 of the city convergence layer include a fixed network gateway U-plane MSG-U24 and a user plane function network element (User Plane Function, abbreviated as UPF) 25 of the network concentration unit, where the MSG-U24 is respectively connected to a content delivery network (Content Delivery Network, abbreviated as CDN) server 26 and a cloud service server 27 deployed in the edge cloud. Wherein 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/local city Core cloud.
In some embodiments, the mobile network service gateway includes a mobile network service gateway U-plane and a mobile network service gateway C-plane, where the mobile network service gateway U-plane is UPF and the mobile network service gateway C-plane includes network elements such as SMF; the multi-service convergence gateway comprises a multi-service convergence gateway U face and a multi-service convergence gateway C face, wherein data services of the mobile network and the fixed network are accessed in a unified manner by the multi-service convergence gateway U face at the convergence node. The mobile network service gateway can be distributed, and a mobile network service gateway U-plane can be deployed at the edge cloud of the convergence layer and is used for connecting the mobile network transmission convergence node and bearing the mobile network data service of the mobile network transmission convergence node, and can be connected with the content source of the edge cloud or the Internet through the multi-service convergence gateway U-plane; the mobile network service gateway C surface can be a core cloud deployed in province/city and used for connecting with the mobile network service gateway U surface and controlling mobile network data service. The control layer is uniformly responsible for the C face of the multi-service convergence gateway which is intensively deployed in the whole province or the city. The convergence gateway U-plane can be deployed on the convergence layer edge cloud, is connected with the mobile network service gateway U-plane, and enables the mobile network data service and the fixed network data service to be accessed into the convergence layer edge cloud; the multi-service convergence gateway C-plane can be deployed in a province/city level core cloud and is used for controlling fixed network data service.
In the embodiment of the invention, the requirements of the edge cloud access, the security, the charging, the QoS guarantee and the like are well met through the mobile network service gateway and the multi-service convergence gateway deployed on the convergence layer edge cloud. The operator fully plays the advantages of abundant mobile network, fixed network access network resources and localized support services, provides cloud network integrated products 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 the realization of convergence layer edge cloud and access network. And by deploying lightweight edge clouds on the sink nodes, cloud computing capability of the edge clouds is opened to a third party, various services such as high-definition video, cloud games, live video and instant messaging are deployed on the sink layer edge clouds by the third party, network shifting and fixed network traffic is unloaded on the sink layer edge clouds, third party service content is accessed nearby, user experience is improved, and a new service cooperation mode is created. The edge cloud of the convergence layer and the access network realize cloud network coordination, so that the advantage of cloud network integration is exerted, and the requirement of low-delay edge cloud service is met. The edge cloud cooperates with the core cloud, and the edge cloud serves as the extension of the core cloud and is close to the process of providing local scene perception for users. Because the number of transmission hops between the edge cloud of the convergence layer and the end users of the mobile network and the fixed network is small, the transmission delay is low, and a good network environment is provided for guaranteeing QoS experience of the users of the mobile network and the fixed network.
The network operator can allow a third party to access to the 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 on the convergence layer edge cloud, and perform cloud network collaboration in an area close to a target user to provide low-delay, large-bandwidth and stable high-quality service 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 on the convergence layer edge cloud. For mobile and fixed network service requests for accessing the hot content distributed to the edge cloud of the convergence layer, the edge cloud of the convergence layer closely provides service, so that the bandwidth occupation of a mobile network service gateway and a hierarchical network above a multi-service convergence gateway is reduced. In addition, for some specific applications, such as video monitoring, security monitoring, big data analysis, etc., a large amount of data needs to be stored at the network edge, and a third party application of the convergence layer edge cloud can perform analysis and preprocessing first, 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, thereby saving transport network bandwidth.
The 5G network quality assurance system provided by the embodiment realizes the comprehensive bearing of the fixed-mobile service and the QoS comprehensive assurance of the fixed-mobile service, achieves the effect of user experience consistency, is beneficial to guaranteeing the consistency of the fixed-mobile service experience, and meets the unified assurance requirement of the mobile-fixed user focused by a third party cooperative manufacturer.
In some embodiments, the primary traffic orchestrator 11 and the secondary traffic orchestrator 12 are each provided with an API interface, and connect with internet SP/CP clients through the API interfaces. For example, SP (Service Provider) in the internet SP/CP refers to a direct provider of mobile internet service content application services, which is responsible for developing and providing services suitable for mobile phone users according to the requirements of the users; CP (Content Provider) in the internet SP/CP, i.e. "content provision", refers to a mobile data service content provider or a mobile value added service content provider. And the API interface 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 general user who makes a message subscribes to a VIP service application, and the internet SP/CP client generates a QoS guarantee application instruction according to the service request. The QoS guarantee application instruction includes a QoS guarantee configuration scheme related to the service request, that is, the subscription VIP service application service, for the mobile network service. The internet SP/CP client transmits 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 generate QoS guarantee parameters according to the QoS guarantee application instruction, and send the QoS guarantee parameters to the network centralizing unit 13, so that the network centralizing unit 13 provides QoS guarantee policies for the terminal according to the QoS guarantee parameters.
Fig. 3 is a 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 receives the QoS guarantee application instruction sent by the Internet SP/CP client, and authenticates 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 generate QoS guarantee parameters according to the QoS guarantee application instruction, and send the QoS guarantee parameters to the network centralization unit 13.
S303, the network centralizing unit 13 provides QoS guarantee strategy for the terminal according to the QoS guarantee parameter.
The content in steps S201 to S203 is identical to the content in the 5G network quality assurance system in the embodiment of fig. 1, and will not be described here again.
According to the 5G network quality assurance method, the air interface quality assurance of the data flow with fine granularity of specific users of specific services is realized by realizing the 5G wireless air interface quality assurance, the index requirements of priority, time delay, packet loss rate and the like are met, the quality requirements of most industry applications, particularly eMBB applications, are met, and the method is a lightweight quality assurance scheme with low cost and simplicity and easiness. The method can be deployed quickly, is beneficial to solving the contradiction of insufficient supply side capability such as inflexibility and inexhaustibility of customer differentiated service requirements and network quality guarantee capability of operators in the 5G era industry, has an insignificant and unstable guarantee effect, and can realize the network capability opening and high-value realization of the operators quickly.
Fig. 4 is a schematic diagram of a network concentrating unit according to an embodiment of the present invention. As shown in fig. 4, the network centralizing 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 schematic flow chart of a method for guaranteeing quality of a 5G network according to an embodiment of the present invention. Based on the network centralizing unit structure provided in fig. 4, step S303, the network centralizing unit 13 provides 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 the NEF receives the QoS guarantee parameter, the QoS guarantee parameter is converted into a specified message format and sent to the NEF. Specifically, the NEF maps the corresponding QoS application content to the Npcf interface parameters of the PCF, so that the PCF invokes the relevant QoS guarantee policy.
Specifically, the NEF is used as an indispensable network element in the perception interaction of the vertical industry and the 5G network to realize the transmission of service perception information, and the NEF external service composer feeds back the related information of the appointed service perception. The NWDAF (Network Data Analytics Function, abbreviated as network data analysis function) includes data collection, data analysis, and data analysis result feedback. The NWDAF feeds back a specified service awareness MOS (Mean Opinion Score, simply called average subjective opinion score) to the NEF, and then transmits the specified service awareness MOS to the service orchestrator through the NEF, so that the service orchestrator adjusts the 5G QoS parameters and network configuration according to the service guarantee policy. The data information collected by NWDAF may include, in addition to the traffic aware MOS score: the service orchestrator can acquire data analysis results from the NWDAF network element through the NEF through two services of subscription/notification or request/response, and can open the data analysis results of the appointed service to a third party manufacturer through the NWDAF/NEF and the service orchestrator.
S502, PCF generates policy control and charging PCC policy according to preset rule and QoS guarantee parameter and sends PCC policy to SMF.
In the embodiment of the invention, PCF generates policy control and charging PCC policy according to preset rules and QoS guarantee parameters. 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 content according to predefined rules of APP ID in the PCF and the received QoS, where APP ID is an identification number of a corresponding service application in the service requirement.
S503, the SMF session management function network element and the UPF user plane function network element create 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 create QoS Flow according to the PCC policy, and load the corresponding OTT CP/SP service on the QoS Flow by creating the QoS Flow of the target QoS, thereby realizing differential scheduling on the QoS guarantee capability of the 5G wireless air interface.
Specifically, the implementation of 5G QoS guarantee is performed by an operation on QoS Flow. In 5G systems, and in one PDU (Protocol Data Unit ) session, qoS Flow is the finest granularity that distinguishes between QoS guarantee levels. 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 require different data paths to provide. The 5G uses QFI (QoS Flow Indicator, qoS Flow indicator for short) to identify one data path, i.e., one 5G QoS Flow. A radio bearer may include multiple QoS flows, one QFI being one QoS Flow and one QoS Flow having only one 5QI identity, the value of QFI being unique in one PDU session, user plane traffic with the same QFI value employing the same forwarding handling mechanism in the system. QFI-based traffic differentiated E2E QoS mechanism: the data plane carries a corresponding QFI identifier, the uplink is used for realizing the mapping and the identifier from the SDF (Service Data Flow, short for service data flow) to the QFI by the UE identifier, and the downlink is used for realizing the mapping and the identifier from the SDF to the QFI by the UPF.
The 5G QoS flows are divided into Non-GBR QoS flows and GBR QoS flows, wherein the Non-GBR QoS flows are used for bearing the service with the Non-guaranteed bandwidth requirement and meeting the resource allocation Non-rigid requirement, and the priority is lower; GBR QoS Flow is used to carry traffic requiring bandwidth guarantee, and the rigid requirements of resource allocation guarantee the Flow bit rate, priority, is typically higher than Non-GBR traffic. The GBR QoS Flow contains the resource types of 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, which the SMF can modify based on local policy and interactions with the PCF. And then the SMF executes the QoS Flow Binding function, namely the SMF associates the PCC rule issued by the PCF to the corresponding QoS Flow. When the NR finds that the radio resource cannot meet the QoS requirement of the QoS Flow, the 5GC processing can be notified through the Notification Control Flow.
The 5G QoS Flow operation Flow is exemplified by first establishing a PDU session, specifically including the establishment of one or more QoS flows; the PDU session is updated again, including in particular UE-initiated and network-initiated session updates.
Illustratively, the 5G QoS parameters include QoS Flow level parameters and aggregate 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.5QI is a scalar that represents 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 a preset standard 5G QoS parameter through 5QI, and controls QoS Flow level packet forwarding processing. ARP (Allocation and Retention Priority, simply assigned reservation priority) for deciding whether to accept or reject a QoS Flow set-up or modification request in the case of a resource limitation, and for deciding which QoS Flow to discard in the case of a special resource limitation. Contains priority, preemption capability flag and preempted capability. The GBR QoS Flow parameters include Flow Bit Rates, notification control, and Maximum Packet Loss Rate. The Flow Bit Rates include: GFBR and MFBR, GFBR is used for guaranteed bit rate that can be provided and MFBR is used for maximum bit rate that can be provided. Notification control is used to indicate whether RAN notification is required when GFBR no longer or again satisfies QoS flows during the lifetime of QoS flows. Maximum Packet Loss Rate is the maximum packet loss rate for the allowed QoS Flow. The Non-GBR QoS Flow parameter contains Reflective QoS Attribute for indicating that the traffic Flow carried by the QoS Flow is adapted to reflect QoS. The set-level QoS parameters include a Session-AMBR, which represents the aggregate maximum rate of all Non-GBR QoS flows for one PDU Session, and a UE-AMBR, which represents the maximum rate corresponding to the aggregate of all Non-GBR beacons for the UE.
According to the 5G network quality assurance method provided by the embodiment, the NEF capability opening function and the NWDAF network data analysis function are utilized to realize the transmission of the appointed service perception information, assist the execution of the appointed service quality assurance strategy of a third party manufacturer and realize the closed-loop management of the QoS quality assurance of the mobile network service.
On the other hand, the 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 above embodiment.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. The 5G 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 level core cloud and a network centralization 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 centralization unit; the network centralized unit is connected with a terminal;
the first-level service composer and/or the second-level service composer are used for receiving QoS guarantee application instructions sent by the Internet SP/CP client and authenticating the QoS guarantee application instructions;
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 centralization unit;
the network centralizing unit is used for providing QoS guarantee strategy for the terminal according to the QoS guarantee parameter;
the network centralizing unit comprises:
a NEF network capability opening function network element for receiving the QoS guarantee parameter and transmitting the QoS guarantee parameter to the PCF;
the PCF policy control function network element is used for generating policy control and charging PCC policies according to preset rules and the QoS guarantee parameters and sending the PCC policies to the SMF;
the SMF session management function network element and the UPF user plane function network element are used for creating QoS Flow according to the PCC policy and bearing the appointed service used by the terminal on the QoS Flow; wherein the QoS Flow is the finest granularity for distinguishing different QOS guarantee levels;
the SMF session management function network element is deployed in the province/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 function network element is deployed at the edge cloud of the convergence layer, is used for connecting the mobile network transmission convergence node and bearing the mobile network data service of the mobile network transmission convergence node.
2. 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-plane and a multi-service convergence gateway C-plane;
the multi-service convergence gateway U-plane is deployed on the convergence layer edge cloud, is connected with UPF user plane function network elements, and enables a network-moving data service and a fixed network data service to be accessed into the convergence layer edge cloud;
the multi-service convergence gateway C surface is deployed in the province/city level core cloud and is used for controlling the fixed network data service.
3. The system according to claim 1 or 2, wherein the primary service orchestrator and the secondary service orchestrator are each provided with an API interface and are connected to an internet SP/CP client through the API interfaces;
the API interface 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.
4. The 5G network quality assurance method is characterized by being 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 centralization unit deployed on a provincial/local city level core cloud and 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 centralization unit; the network centralized unit is connected with a terminal;
the method comprises the following steps:
the primary service composer and/or the secondary service composer receives a QoS guarantee application instruction sent by the internet SP/CP client, and authenticates 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 centralization unit;
the network centralization unit provides QoS guarantee strategy for the terminal according to the QoS guarantee parameter;
the network centralized unit comprises a NEF network capability opening function network element, a PCF strategy control function network element, an SMF session management function network element and a UPF user plane function network element;
correspondingly, the network centralization unit provides QoS guarantee strategy for the terminal according to the QoS guarantee parameter, and the method comprises the following steps:
the NEF network capability opening 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 policy control and charging PCC policies according to preset rules and the QoS guarantee parameters and sends the PCC policies to the SMF;
the SMF session management function network element and the UPF user plane function network element are used for creating QoS Flow according to the PCC policy and bearing the appointed service used by the terminal on the QoS Flow; wherein the QoS Flow is the finest granularity for distinguishing different QOS guarantee levels;
the SMF session management function network element is deployed in the province/city level core cloud, and is used for connecting with the UPF user plane function network element and controlling the network-moving data service;
the UPF user plane function network element is deployed at the edge cloud of the convergence layer, is used for connecting the mobile network transmission convergence node and bearing the mobile network data service of the mobile network transmission convergence node.
5. The method of claim 4, 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-plane and a multi-service convergence gateway C-plane;
the multi-service convergence gateway U-plane is deployed on a convergence layer edge cloud, is connected with UPF user plane function network elements, and enables a mobile network data service and a fixed network data service to be accessed into the convergence layer edge cloud;
the multi-service convergence gateway C surface is deployed in the province/city level core cloud and is used for controlling the fixed network data service.
6. The method according to claim 4 or 5, wherein the primary service orchestrator and the secondary service orchestrator are each provided with an API interface and are connected to an internet SP/CP client through the API interfaces;
and the primary service composer and/or the secondary service composer receive a QoS guarantee application instruction sent by the internet SP/CP client through the API interface, 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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