CN114866423B

CN114866423B - Private network service policy control method, device, equipment and medium

Info

Publication number: CN114866423B
Application number: CN202210479183.4A
Authority: CN
Inventors: 陈洁; 欧建南; 李雪馨; 程淑荣
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2023-10-03
Anticipated expiration: 2042-05-05
Also published as: CN114866423A

Abstract

The disclosure provides a private network service policy control method, a private network service policy control device, private network service policy control equipment and a private network service policy control medium, and relates to the technical field of communication. The method comprises the following steps: receiving a session policy control creation request sent by a session management function SMF network element; inquiring a service control strategy corresponding to the private network service identification information according to a preset corresponding relation table; and sending a session policy control creation response to the SMF network element so that the user plane function UPF network element executes the service control policy to provide services for the terminal equipment. According to the PCF network element provided by the disclosure, the service control strategy corresponding to the private network service identification information is queried according to the preset corresponding relation table, so that the problem that the 2B service control strategy rule of the PCF network element is large in scale because each terminal device of an enterprise needs to customize one service control strategy is solved, and the operation cost is reduced.

Description

Private network service policy control method, device, equipment and medium

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a private network service policy control method, a private network service policy control device, an electronic device and a computer readable storage medium.

Background

With the promotion of the construction of the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G), more and more enterprises hope to solve the problems in the original network of the enterprises by utilizing the characteristics of large 5G bandwidth, low time delay, large connection, high mobility of the mobile network and the like, and promote the intelligent transformation process of the enterprises. Meanwhile, enterprises have differentiated customization demands on policy control of private network users.

The current 5G network performs service control policy subscription on single users one by one in a 5G unified data management (Unified Data Management, UDM) network element and a policy control function (Policy Control Function, PCF) network element along the same method as the public user policy control, and has no subscription and management of industry private network dimensions for industry private network clients, enterprise clients uniformly subscription according to services and packages, and cannot perform personalized subscription, however, the enterprise needs to perform personalized subscription, each enterprise client has a plurality of terminal devices, different terminal devices can sign up for different customized service control policies, and each terminal device needs to customize one service control policy, so that the policy control function PCF network element has a large 2B service control policy rule scale, currently exceeding 17 tens of thousands, high operation cost and complex maintenance.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The disclosure provides a private network service policy control method, device, equipment and medium, which at least overcome the problem of large scale of 2B service control policy rules of PCF network elements with policy control functions to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, a private network service policy control method is provided, which is applied to a PCF network element side of a policy control function, and the method includes:

receiving a session policy control creation request sent by a Session Management Function (SMF) network element, wherein the session policy control creation request is created according to a session establishment request sent by terminal equipment, and the session policy control creation request carries private network service identification information;

inquiring a service control strategy corresponding to the private network service identification information according to a preset corresponding relation table, wherein the corresponding relation table is used for indicating the corresponding relation between the private network service identification information and the service control strategy;

And sending a session policy control creation response to the SMF network element, wherein the session policy control creation response carries the service control policy so that a user plane function UPF network element executes the service control policy to provide services for the terminal equipment.

In some embodiments of the present disclosure, the private network service identification information includes:

private network identification for distinguishing different private networks;

service identification for distinguishing different service packages.

In some embodiments of the present disclosure, one private network corresponds to one private network identifier, one private network identifier corresponds to at least one service identifier, and one service identifier corresponds to one service control policy.

In some embodiments of the disclosure, the preset correspondence table includes a correspondence between the private network identifier and the service identifier, and a correspondence between the service identifier and the service control policy.

In some embodiments of the present disclosure, before the receiving the session policy control creation request sent by the session management function SMF network element, the method further comprises:

the private network service identification information is stored in a user subscription template of the Unified Data Management (UDM) network element;

The corresponding relation table is stored in a private network signing template of the PCF network element;

an access and mobility management function (AMF) network element receives a registration request sent by the terminal equipment, and the AMF network element generates a subscription data request according to the registration request;

the AMF network element sends a subscription data request to the UDM network element;

the AMF network element receives the subscription data sent by the UDM network element, wherein the subscription data carries the private network service identification information

In some embodiments of the present disclosure, the receiving a session policy control creation request sent by a session management function SMF network element, where the session policy control creation request is created according to a session establishment request sent by the terminal device, includes:

the AMF network element receives the session establishment request sent by the terminal equipment, wherein the session establishment request carries the private network service identification information;

and the AMF network element creates a session context request according to the received session establishment request, and sends the session context request to the SMF network element, wherein the session context request carries the private network service identification information so that the SMF network element creates the session policy control creation request.

According to another aspect of the present disclosure, another private network service policy control method is provided, which is applied to an SMF network element side, and includes:

a session policy control creation request is sent to a PCF network element, and the session policy control creation request is created according to a session establishment request sent by terminal equipment, wherein the session policy control creation request carries private network service identification information;

receiving a session policy control creation response sent by the PCF network element, where the session policy control creation response carries a service control policy, where the service control policy is obtained by querying, by the PCF network element, a service control policy corresponding to the private network service identification information according to a preset correspondence table, where the correspondence table is used to indicate a correspondence between the private network service identification information and the service control policy, so that a user plane function UPF network element executes the service control policy and provides services for the terminal device.

In some embodiments of the present disclosure, the sending the session policy control creation request to the PCF network element, where the session policy control creation request is created according to a session establishment request sent by a terminal device, includes:

According to another aspect of the present disclosure, there is provided a private network service policy control device applied to a PCF network element side, the device including:

the first receiving module is used for receiving a session policy control creation request sent by a session management function SMF network element, wherein the session policy control creation request is created according to a session establishment request sent by terminal equipment, and the session policy control creation request carries private network service identification information;

the query module is used for querying a service control strategy corresponding to the private network service identification information according to a preset corresponding relation table, wherein the corresponding relation table is used for indicating the corresponding relation between the private network service identification information and the service control strategy;

And the response module is used for sending a session policy control creation response to the SMF network element, wherein the session policy control creation response carries the service control policy so that the user plane function UPF network element executes the service control policy to provide service for the terminal equipment.

According to another aspect of the present disclosure, there is provided another private network service policy control device applied to an SMF network element side, the device including:

a sending module, configured to send a session policy control creation request to a PCF network element, where the session policy control creation request is created according to a session establishment request sent by a terminal device, and the session policy control creation request carries private network service identifier information;

the second receiving module is configured to receive a session policy control creation response sent by the PCF network element, where the session policy control creation response carries a service control policy, where the service control policy is obtained by querying, by the PCF network element, a service control policy corresponding to the private network service identification information according to a preset correspondence table, where the correspondence table is used to indicate a correspondence between the private network service identification information and the service control policy, so that a user plane function UPF network element executes the service control policy and provides a service for the terminal device.

According to another aspect of the present disclosure, there is provided an electronic device including:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the private network traffic policy control method described above via execution of the executable instructions.

According to another aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the private network service policy control method described above.

According to the private network service policy control method, device and medium provided by the embodiment of the disclosure, the PCF network element receives a session policy control creation request sent by a session management function SMF network element, the session policy control creation request carries private network service identification information, the PCF network element inquires a service control policy corresponding to the private network service identification information according to a preset corresponding relation table, and then the configuration of the service control policy of the terminal equipment can be completed, namely, the service policy is not required to be customized for the terminal equipment, the problem that the 2B service control policy rule of the PCF network element is large because each terminal equipment of an enterprise needs to customize one service control policy is solved, so that the requirement of flexibly setting the service control policy by different enterprises is met, the configuration and maintenance of the 2B service control policy are simplified while different terminal equipment of the enterprise can sign different customized service control policies, the service policy rule of a single user of the private network is reduced, the whole 2B service control policy scale is reduced, and the operation cost is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 illustrates a schematic diagram of an application system architecture in an embodiment of the present disclosure;

fig. 2 is a flowchart illustrating a private network service policy control method in an embodiment of the disclosure;

fig. 3 is a flowchart illustrating a private network service policy control method after subscription of a terminal device is added in an embodiment of the present disclosure;

fig. 4 shows a signaling diagram of a private network service policy control method in an embodiment of the disclosure;

fig. 5 is a flowchart illustrating a private network service policy control method according to another embodiment of the present disclosure;

fig. 6 is a process diagram of a PCF network element performing service control policy subscription in an embodiment of the disclosure;

Fig. 7 is a schematic diagram of a private network service policy control device in an embodiment of the disclosure;

fig. 8 is a schematic diagram of a private network service policy control device according to another embodiment of the disclosure;

FIG. 9 shows a block diagram of an electronic device in an embodiment of the disclosure;

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

For ease of understanding, before describing embodiments of the present disclosure, several terms referred to in the embodiments of the present disclosure are first explained as follows:

PCF: policy Control Function, policy control function.

AMF: access and Mobility Mangement Function, access and mobility management functions.

UDM: unified Data Management, unified data management.

SMF: session Management Function, receive session management functions.

UPF: user Plane Function, user plane functions.

The following detailed description of embodiments of the present disclosure refers to the accompanying drawings.

Fig. 1 shows a schematic diagram of an exemplary application system architecture to which the private network traffic policy control method in the embodiments of the present disclosure may be applied.

As shown in fig. 1, the system architecture includes a terminal device 101, a network 102, and a network side device 103; the medium used by the network 102 to provide a communication link between the terminal device 101 and the network-side device 103 may be a wired network or a wireless network.

Alternatively, the wireless network or wired network described above uses standard communication techniques and/or protocols. The network is typically the Internet, but may be any network including, but not limited to, a local area network (Local Area Network, LAN), metropolitan area network (Metropolitan Area Network, MAN), wide area network (Wide Area Network, WAN), a mobile, wired or wireless network, a private network, or any combination of virtual private networks. In some embodiments, data exchanged over the network is represented using techniques and/or formats including HyperText Mark-up Language (HTML), extensible markup Language (Extensible Markup Language, XML), and the like. All or some of the links may also be encrypted using conventional encryption techniques such as secure socket layer (Secure Socket Layer, SSL), transport layer security (Transport Layer Security, TLS), virtual private network (Virtual Private Network, VPN), internet protocol security (Internet Protocol Security, IPsec), and the like. In other embodiments, custom and/or dedicated data communication techniques may also be used in place of or in addition to the data communication techniques described above.

Any one of the terminal devices 101 shown in fig. 1 may be used as a remote terminal or a relay terminal, and communication based on proximity services may be established between the remote terminal and the relay terminal, where the remote terminal may directly access the network or may access the network via the relay terminal.

Optionally, the terminal Device 101 in the embodiment of the present disclosure may also be referred to as a UE (User Equipment), and in a specific implementation, the terminal Device 101 may be a terminal side Device such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (webable Device), or a vehicle Device.

In some embodiments, the terminal device in the embodiments of the present disclosure may be a terminal that supports a wireless and wired converged access, for example, various 5G home terminals and enterprise terminals, including but not limited to intelligent air conditioners, televisions, washing machines, industrial robot arms, industrial robots, and the like. It should be noted that, in the embodiment of the present invention, the specific type of the terminal is not limited.

The network side device 103 includes various network entities of an access network or a core network, including but not limited to UDM network elements, SMF network elements, AMF network elements, UPF network elements, and PCF network elements, and it should be noted that the specific type of the network side device is not limited in the embodiments of the present disclosure.

As shown in fig. 1, the AMF network element supports UEs with different mobility management requirements, and the PCF network element interacts with access and mobility policy implementation in the AMF network element through a service-based interfaces (SBI); the UDM network element is a part of a control plane of the 5G core network, is a front-end architecture of a user database of the 5G, is a user subscription data management part of the control plane, is responsible for processing service logic, is responsible for signaling processing with other core network elements, and stores dynamic data of users and services; the UE sends a subscription data request to the UDM network element through the AMF network element to register the user; the SMF network element is used for establishing a session and configuring flow control of the UPF network element, and the UPF network element is used as a 5G network user plane network element for routing the flow to a correct destination, and mainly supports routing and forwarding of UE service data, data and service identification, action and policy execution and the like. The UPF network element interacts with the SMF network element through an N4 interface, is controlled and managed by the SMF network element, and executes the processing of the service flow according to various strategies issued by the SMF network element, in other words, after the SMF network element receives the session strategy control creation response of the PCF network element, the UPF network element is controlled to execute the processing of the service flow.

Those skilled in the art will appreciate that the number of terminal devices, networks, and network side devices in fig. 1 is merely illustrative, and that any number of terminals, networks, and servers may be provided as desired. The embodiments of the present disclosure are not limited in this regard.

In the related art, the process diagram of the PCF network element for service control policy subscription is as follows:

in order to more clearly illustrate the existing private network subscription process, three single terminal devices are taken as an example for illustration, the number of the single terminal devices actually subscribed is usually tens of thousands to hundreds of thousands, the user identification of the terminal devices is required to be given to the PCF network element through the SMF network element when the single terminal devices are subscribed, the PCF network element performs the data configuration of the policy according to the user identification of the terminal devices, the PCF network element performs the data configuration on the three terminal devices respectively, namely, three service control policies are formulated, even if the service control policies of the first terminal device and the third terminal device are the same, the PCF network element also needs to formulate the service control policies for the first terminal device and the third terminal device respectively, so that the 2B service control policy rule of the PCF network element is large in scale.

The method comprises the steps that business control strategies can be flexibly set for different enterprises, different terminal equipment of the enterprises sign up for different customized business strategies, specifically, each terminal equipment of the enterprises is a user, the user registers on a user sign-up template of a UDM network element, after registration is completed, data configuration is carried out through a PCF network element, the process of carrying out data configuration on the terminal equipment by the PCF network element becomes customization of the business strategies, the PCF network element carries out data configuration on each user, and even if service packages required by user business are the same, data configuration is carried out, so that the 2B business control strategy of the PCF network element is large in rule scale and complex in maintenance.

In order to solve the above problems, the private network service policy control method provided by the present disclosure combines enterprise clients to uniformly sign up according to service/package, by introducing 2B clients and service concepts into user sign up and service control policies, service packages required by users correspond to corresponding private network service identification information, if service packages required by users are the same, corresponding private network service identification information is the same, private network service identification information has corresponding service control policies, service control policies are configured in advance, the service control policies configured in advance are customized service control policies, PCF network elements do not need to perform data configuration for service control policies required by users, PCF network elements do not need to perform data configuration for users with the same service requirements for multiple times, only the private network service identification information corresponding to the user needs is required to query corresponding service control policies, 2B service control policy configuration and maintenance are simplified, different terminal devices of enterprises can sign up different customized service control policies, service control policies of individual users are reduced, service control policies of 2B service control policies of individual users are reduced, and service control policy scale of the whole enterprise is also flexible, and service control policy combination is also reduced.

The present exemplary embodiment will be described in detail below with reference to the accompanying drawings and examples.

Based on the system architecture, the embodiment of the disclosure provides a private network service policy control method, which can be executed by any electronic device with computing processing capability.

Fig. 2 shows a flowchart of a private network service policy control method in an embodiment of the disclosure, as shown in fig. 2, where the private network service policy control method provided in the embodiment of the disclosure is applied to a PCF network element side, and includes the following steps:

s202, receiving a session policy control creation request sent by a session management function SMF network element, wherein the session policy control creation request is created according to a session establishment request sent by a terminal device, and the session policy control creation request carries private network service identification information.

It should be noted that, the private network service identification information is set for signing a contract of the terminal device, and is used for identifying the private network and the service packages required by the terminal device, so as to distinguish different private networks and service packages, and the specific form of the private network service identification information is not limited in the embodiment of the disclosure. The private network service identification information of this embodiment includes: a private network identifier for distinguishing different private networks and a service identifier for distinguishing different service packages in one private network.

For example, private network service identification information is implemented through private network service identification ID, and private network service identification ID may be added in a subscriber subscription template of the UDM network element, where the private network service identification ID includes a private network ID and a service ID, the private network ID is used to distinguish different private networks, the private network ID may include one or more of text, letters, numbers, symbols, and the like, the service ID is used to distinguish different service packages, and the service ID may include one or more of text, letters, numbers, symbols, and the like.

In some embodiments, the AMF network element receives a session establishment request sent by the terminal device, where the session establishment request carries private network service identification information, and the AMF network element creates a session context request according to the received session establishment request, and sends the session context request to the SMF network element, where the session context request carries private network service identification information, so that the SMF network element creates a session policy control creation request.

The session establishment request sent by the terminal device to the AMF network element is exemplified, and before the session establishment request carrying the private network service identification information is sent, session communication needs to be established, where the session establishment process is as follows, the terminal device sends the session establishment request carrying parameter information to the AMF network element, where the parameter information is used to establish session communication, for example, the parameter information is used to request a network slice selection policy (Network Slice Selection Policy, NSSP), the terminal device receives a session communication establishment accept message sent by the AMF network element, where the session communication establishment accept message includes the network slice selection policy, so that in the session establishment process of the subsequent terminal device, the terminal device can accurately determine the corresponding identification parameter (Single Network Slice Selection Assistance Information, S-sai) according to the NSSP of the current visited public land mobile network (Visited Public Land Mobile Network, VPLMN) or the NSSP of the local public land mobile network (Home Public Land Mobile Network, HPLMN).

After the session communication is established, the terminal equipment sends a session establishment request carrying private network service identification information to the AMF network element, the session establishment request carries a network slice selection strategy, so that the AMF network element can find an S-NSSAI corresponding to a network where the terminal equipment is located conveniently, the session establishment is completed, the communication between the AMF network element and the terminal equipment is further carried out, the AMF network element receives the session establishment request sent by the terminal equipment, and sends a session context creation request to the SMF network element, so that the SMF network element creates the session strategy control creation request.

S204, inquiring the service control strategy corresponding to the private network service identification information according to a preset corresponding relation table, wherein the corresponding relation table is used for indicating the corresponding relation between the private network service identification information and the service control strategy.

It should be noted that, the preset correspondence table is stored in the PCF network element, and the correspondence table records the correspondence between the private network service identification information and the service control policy.

In this embodiment, the PCF network element receives the session policy control creation request sent by the SMF network element, obtains private network service identification information in the session policy control creation request, and searches a preset correspondence table to obtain a service control policy corresponding to the private network service identification information.

In some embodiments, a private network corresponds to a private network identifier, a private network identifier corresponds to at least one service identifier, and a service identifier corresponds to a service control policy.

It should be noted that a terminal device may correspond to a private network identifier and a plurality of service identifiers, that is, a terminal device may sign up for a plurality of service packages. For example, in the industrial internet of things, if the industrial robot needs to be equipped with a quality of service (Quality of Service, qoS) policy and a black-and-white list policy as a terminal device, the industrial robot needs to sign up two service packages, where the two service packages correspond to two service identifiers, the two service identifiers correspond to private network identifiers of the industrial robot, and accordingly, the PCF network element queries, according to a preset correspondence table, two service control policies corresponding to the two service identifiers, and the UPF network element executes the service control policy.

In other embodiments, the preset correspondence table includes a correspondence between private network identifiers and service identifiers, and a correspondence between service identifiers and service control policies. The corresponding relation table comprises private network identifications, service identifications and service control strategies, wherein the private network identifications correspond to the service identifications, one private network identification can correspond to one service identification, one private network identification can also correspond to a plurality of service identifications, and one service identification corresponds to one service control strategy.

It should be noted that, the service control policy includes black and white list, access limitation, charging policy, qoS policy, enterprise private line, etc.

S206, sending a session policy control creation response to the SMF network element, wherein the session policy control creation response carries a service control policy so that the user plane function UPF network element executes the service control policy to provide service for the terminal equipment.

In some embodiments, after receiving the session policy control creation response sent by the PCF network element, the SMF network element establishes a session, and sends a service control policy carried in the session policy control creation response to the UPF network element, where the UPF network element is used as a 5G network user plane network element, and supports routing and forwarding of service data of the terminal device, data and service identification, action and policy execution, and the user plane function UPF network element executes the service control policy for the terminal device.

According to the private network service policy control method provided by the embodiment of the disclosure, the PCF network element inquires the service control policy corresponding to the private network service identification information according to the preset corresponding relation table, so that the problem that the 2B service control policy rule of the PCF network element is large in scale because each terminal device of an enterprise needs to customize one service control policy is solved, the requirements that different enterprises can flexibly set the service control policy are met, the configuration and maintenance of the 2B service control policy are simplified, the service policy rule of a single user of the private network is reduced, the scale of the whole 2B service control policy is reduced, the subscription of a large number of single cards is avoided, and the operation cost is reduced.

Fig. 3 is a flowchart illustrating a private network service policy control method after subscription of a terminal device is added in an embodiment of the present disclosure. The present embodiment adds steps S302-S308, i.e. the method for signing a contract with the terminal device, before step S202 on the basis of fig. 2. As shown in fig. 3, the method includes steps S302-S308 and S202-S206, and specifically, the method includes:

s302, private network service identification information is stored in a user subscription template of a universal data management UDM network element, and a corresponding relation table is stored in the private network subscription template of the PCF network element;

s304, an AMF network element receives a registration request sent by a terminal device, and generates a subscription data request according to the registration request;

s306, the AMF network element sends a subscription data request to the UDM network element;

s308, the AMF network element receives the subscription data sent by the UDM network element, wherein the subscription data carries private network service identification information.

It should be noted that steps S202 to S206 are the same as those in the previous embodiment, and are not repeated here.

The user subscription template of the UDM network element is generated after an enterprise and a service provider (operator) sign private network business and is used for enabling the service provider to provide corresponding services for users according to the user subscription template, subscription data are stored on the user subscription template, the subscription data comprise private network identifiers and service identifiers, and services are provided for terminal equipment in the private network according to the subscription data.

The terminal equipment sends a registration request to the AMF network element, the AMF network element responds to the registration request sent by the terminal equipment, the AMF network element sends a subscription data request to the UDM network element, the UDM network element stores subscription data and sends the subscription data corresponding to the registration request of the terminal equipment to the AMF network element, the subscription data comprises a private network identifier and a service identifier corresponding to the registration request, so that when the terminal equipment in the private network initiates a session establishment request, the AMF network element is triggered to carry a session context request containing the private network service identifier to send to the SMF network element, and further the PCF network element searches a service control strategy corresponding to the private network service identifier, thereby providing corresponding service for the terminal equipment.

Illustratively, the UDM network element obtains a registration request sent by the terminal device, and when the registration request sent by the terminal device is the same as registration information pre-stored in the UDM network element, the UDM network element may determine that the authentication of the terminal device passes. After passing the authentication, the UDM network element may provide a service for the terminal device according to the private network service identification information in the subscription data of the terminal device.

The private network enterprise subscription template of the PCF network element is generated after the enterprise signs the private network service with the service provider (operator), and is used for the PCF network element to call the private network enterprise subscription template, search the service control policy corresponding to the private network service information, and the UPF network element executes the service control policy to provide the service corresponding to the private network service information for the terminal device. The PCF network element inquires a private network enterprise subscription template according to the private network identifier and the service identifier subscribed by the terminal equipment, obtains a service control strategy corresponding to the service identifier, and creates a response through session strategy control and sends the response to the SMF network element; specifically, each terminal device of the enterprise is equivalent to a user, one user can only sign up for one private network, one private network can sign up for a plurality of users, one private network corresponds to one private network identifier, one user can sign up for a plurality of service packages, one service package corresponds to one service identifier, and in combination, one user corresponds to one private network identifier and at least one service identifier. The terminal equipment of the enterprise often has a plurality of types, private networks and service packages required by the same type of terminal equipment are the same, service control strategies required by the corresponding same type of terminal equipment are the same, PCF network elements feed back the same service control strategies to users with the same service control strategies, the data configuration of the same type of terminal equipment is not needed, the service control strategy rules of single users of the private networks are reduced, and the whole 2B service control strategy scale is reduced.

Fig. 4 is a schematic diagram illustrating an interaction process of a private network service policy control method in an embodiment of the disclosure, where, as shown in fig. 4, the method specifically includes:

s400a, adding a private network identifier and a service identifier on a user subscription template of a UDM network element;

s400b, storing a preset corresponding relation table on a private network enterprise subscription template of the PCF network element;

s402, the terminal equipment initiates a registration request to an AMF network element;

s404, after receiving a registration request sent by a terminal device, an AMF network element requests subscription data of the user from a UDM network element;

s406, the AMF network element receives the subscription data sent by the UDM network element and sends the subscription data to the terminal equipment to complete a user registration process, wherein the subscription data comprises a private network identifier and a service identifier;

s408, the terminal equipment initiates a session establishment request to the AMF network element;

s410, after receiving a session establishment request from a user, the AMF network element sends a session establishment context request to the SMF network element, wherein the session context request carries a private network identifier and a service identifier;

s412, after the SMF network element receives the session context request, the SMF network element sends a session policy control creation request message to the PCF network element, wherein the session policy control creation request message carries a private network identifier and a service identifier;

S414, the PCF network element inquires a service control strategy corresponding to the private network identification and the service identification from a corresponding relation table of a private network enterprise signing template according to the private network identification and the service identification reported by the SMF network element;

and S416, the PCF network element sends a session policy control creation response carrying the service control policy to the SMF, thereby completing the session establishment flow.

Fig. 5 shows a flowchart of a private network service policy control method in another embodiment of the present disclosure, as shown in fig. 5, where the private network service policy control method provided in the embodiment of the present disclosure is applied to an SMF network element side, and includes the following steps:

s502, a session policy control creation request is sent to the PCF network element, and the session policy control creation request is created according to the session establishment request sent by the terminal equipment, wherein the session policy control creation request carries private network service identification information.

In an exemplary embodiment, an AMF network element receives a session establishment request sent by a terminal device, where the session establishment request carries private network service identification information; the AMF network element creates a session context request according to the received session establishment request, and sends the session context request to the SMF network element, wherein the session context request carries private network service identification information, so that the SMF network element creates a session policy control creation request.

In an exemplary embodiment, the terminal device sends a session establishment request to the AMF network element, where the AMF network element receives the session establishment request of the terminal device, and if the session establishment request is a new session establishment request, the SMF network element selection process is performed to select an appropriate SMF network element for the session establishment request. In the process that the AMF network element executes SMF network element selection, the AMF network element can interact with NSSF to acquire network slice information, a proper SMF network element is selected through a network storage function (Network Repository Function, NRF), the SMF network element initiates session registration to the UDM network element and acquires subscription information, the subscription information carries private network service identification information, the SMF network element replies a response of successful session establishment to the AMF network element, and the SMF network element sends a session policy control creation request to the PCF network element.

S504, receiving a session policy control creation response sent by the PCF network element, wherein the session policy control creation response carries a service control policy, the service control policy is obtained by inquiring the service control policy corresponding to the private network service identification information through the PCF network element according to a preset corresponding relation table, and the corresponding relation table is used for indicating the corresponding relation between the private network service identification information and the service control policy so as to enable the user plane function UPF network element to execute the service control policy and provide service for the terminal equipment.

In an exemplary embodiment, the PCF network element queries, according to a preset correspondence table, a service control policy corresponding to the private network service identification information, where the PCF network element issues information such as a QoS control policy, a charging control policy, and a UPF network element selection policy related to the SMF network element, so that the UPF network element executes the service control policy on the terminal device.

Fig. 6 shows a process diagram of a PCF network element making a service control policy subscription in an embodiment of the disclosure. In order to more clearly illustrate the private network subscription process after adding the enterprise service policy, fig. 6 illustrates an example with five terminal devices, because in the embodiment of the present disclosure, the private network identifier and the service identifier are added on the user subscription template of the UDM network element, the private network enterprise subscription template of the PCF network element presets a corresponding relationship table, the SMF network element sends a session policy control creation request carrying the private network identifier and the service identifier to the PCF network element, the PCF network element searches for a corresponding service control policy according to the private network identifier and the service identifier, the PCF network element does not need to perform data configuration of the service control policy for each terminal device user, only needs to query the corresponding service control policy according to the private network identifier and the service identifier, and the two terminal devices are identical under the condition that the private network identifier and the service identifier are identical; if the private network identifiers of the two terminal devices are the same, and the service identifiers are different, the corresponding service control strategies are different; if the private network identifications of the two terminal devices are different, the service identifications are the same, and the corresponding service control strategies are different; if the private network identifications of the two terminal devices are different, the service identifications are different, and the corresponding service control strategies are different.

When two private networks of the terminal equipment are identical and service identifiers are different, for example, a first terminal equipment and a fifth terminal equipment are the same, private networks corresponding to the first terminal equipment and the fifth terminal equipment are private network a, service packages corresponding to the first terminal equipment and the fifth terminal equipment are service packages a and service packages b respectively, and service identifiers corresponding to the first terminal equipment and the fifth terminal equipment are different, so that service control strategies corresponding to the first terminal equipment and the fifth terminal equipment are also different, and service control strategies corresponding to the first terminal equipment and the fifth terminal equipment are service control strategy a and service control strategy d respectively; for example, the private networks corresponding to the first terminal device and the second terminal device are private network a, the first terminal device corresponds to service package a, the second terminal device corresponds to two service packages, the two service packages are service package a and service package b respectively, and the service identifiers corresponding to the first terminal device and the second terminal device are different, so that the service control strategies of the first terminal device and the second terminal device are also different.

When two private network identifiers of the two terminal devices are different, for example, the first terminal device and the fourth terminal device have the same service identifier, the private networks corresponding to the first terminal device and the fourth terminal device are a private network a and a private network b respectively, the private network identifiers corresponding to the first terminal device and the fourth terminal device are a private network identifier a and a private network identifier b respectively, the service packages corresponding to the first terminal device and the fourth terminal device are service packages a, and the service identifiers corresponding to the first terminal device and the fourth terminal device are different, so that the service control strategies corresponding to the first terminal device and the fourth terminal device are also different, and the service control strategies corresponding to the first terminal device and the fourth terminal device are a service control strategy a and a service control strategy c respectively.

When two private network identifications of the terminal equipment are different, for example, a second terminal equipment and a fifth terminal equipment are different, the private network identifications of the two terminal equipment are respectively a private network identification a and a private network identification b, the service identification of the second terminal equipment is a combination of the service identification a and the service identification b, the service identification of the fifth terminal equipment is a service identification b, the service identifications of the two terminal equipment are different, and corresponding service control strategies are also different.

When the requirements of two terminal devices are the same, the private network identifiers and service identifiers of the two terminal devices are the same, for example, the private network identifier a and the service identifier a required by the first terminal device and the third terminal device in fig. 6 are queried from a private network enterprise subscription template, so that the private network identifiers corresponding to the first terminal device and the third terminal device are both private network identifiers a, the service packages required by the first terminal device and the third terminal device are both service packages a, the service identifiers corresponding to the first terminal device and the third terminal device are both service identifiers a, the private network service identifiers corresponding to the first terminal device and the third terminal device are the same, the PCF network element queries the associated private network identifier a and service identifier a from the private network enterprise subscription template according to the private network identifier a and service identifier a, and invokes the corresponding service control policy a, so that the terminal devices with the same private network service identifier information can invoke the same service control policy, often invoke the same service control policy for each terminal device, the service policy 5-5 service policy is very little, namely, the service policy 2-5 service policies can be invoked for the corresponding to the service devices in the service policy 5-several hundred thousand service identifiers, and the service policy 2 are very few cases, the data configuration of the service control strategy is not needed for the terminal equipment, and the problem that the 2B service strategy rule of the PCF network element is large in scale because each terminal equipment of an enterprise needs to customize one service control strategy is solved.

Based on the same inventive concept, the embodiments of the present disclosure further provide a private network service policy control device, as in the following embodiments. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.

Fig. 7 shows a schematic diagram of a private network service policy control device in an embodiment of the disclosure, as shown in fig. 7, applied to a PCF network element side, where the device includes a first receiving module 71, a query module 72, and a response module 73, where:

a first receiving module 71, configured to receive a session policy control creation request sent by a session management function SMF network element, where the session policy control creation request is created according to a session establishment request sent by a terminal device, and the session policy control creation request carries private network service identifier information;

the query module 72 is configured to query a service control policy corresponding to the private network service identifier information according to a preset correspondence table, where the correspondence table is used to indicate a correspondence between the private network service identifier information and the service control policy;

a response module 73, configured to send a session policy control creation response to the SMF network element, where the session policy control creation response carries a service control policy, so that the user plane function UPF network element executes the service control policy to provide services for the terminal device.

In some embodiments of the present disclosure, the private network traffic identification information includes a private network identification for distinguishing between different private networks and a service identification for distinguishing between different service packages.

In some embodiments of the present disclosure, a private network corresponds to a private network identifier, a private network identifier corresponds to at least one service identifier, and a service identifier corresponds to a service control policy.

In some embodiments of the present disclosure, the preset correspondence table includes a correspondence between private network identifiers and service identifiers, and a correspondence between service identifiers and service control policies.

In some embodiments of the present disclosure, the apparatus further includes a registration module, not shown in the drawing, configured to store private network service identification information in a user subscription template of the unified data management UDM network element before receiving a session policy control creation request sent by the session management function SMF network element; the corresponding relation table is stored in a private network signing template of the PCF network element;

an access and mobility management function (AMF) network element receives a registration request sent by a terminal device, and the AMF network element generates a subscription data request according to the registration request;

The AMF network element receives the subscription data sent by the UDM network element, wherein the subscription data carries private network service identification information.

In some embodiments of the present disclosure, the first receiving module 71 includes a first receiving sub-module and a first transmitting sub-module, which are not shown in the drawings, wherein,

the first receiving sub-module is used for receiving a session establishment request sent by the terminal equipment by the AMF network element, wherein the session establishment request carries private network service identification information;

and the first sending submodule is used for the AMF network element to create a session context request according to the received session establishment request and send the session context request to the SMF network element, and the session context request carries private network service identification information so that the SMF network element creates a session policy control creation request.

Fig. 8 is a schematic diagram of a private network service policy control device according to another embodiment of the present disclosure, as shown in fig. 8, applied to an SMF network element side, where the device includes a sending module 81 and a second receiving module 82, where:

a sending module 81, configured to send a session policy control creation request to the PCF network element, where the session policy control creation request is created according to a session establishment request sent by the terminal device, and the session policy control creation request carries private network service identifier information;

The second receiving module 82 is configured to receive a session policy control creation response sent by the PCF network element, where the session policy control creation response carries a service control policy, and the service control policy is obtained by querying, by the PCF network element, a service control policy corresponding to private network service identification information according to a preset correspondence table, where the correspondence table is used to indicate a correspondence between the private network service identification information and the service control policy, so that the user plane function UPF network element executes the service control policy and provides services for the terminal device.

In some embodiments of the present disclosure, the transmitting module 81 includes a receiving sub-module and a transmitting sub-module, which are not shown in the drawings, wherein:

the second receiving sub-module is used for receiving a session establishment request sent by the terminal equipment by the AMF network element, wherein the session establishment request carries private network service identification information;

and the second sending submodule is used for the AMF network element to create a session context request according to the received session establishment request and send the session context request to the SMF network element, and the session context request carries private network service identification information so that the SMF network element creates a session policy control creation request.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 900 according to such an embodiment of the present disclosure is described below with reference to fig. 9. The electronic device 900 shown in fig. 9 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 9, the electronic device 900 is embodied in the form of a general purpose computing device. Components of electronic device 900 may include, but are not limited to: the at least one processing unit 910, the at least one storage unit 920, and a bus 930 connecting the different system components (including the storage unit 920 and the processing unit 910).

Wherein the storage unit stores program code that is executable by the processing unit 910 such that the processing unit 910 performs steps according to various exemplary embodiments of the present disclosure described in the above-described "exemplary methods" section of the present specification. For example, the processing unit 910 may perform the following steps of the method embodiment described above: receiving a session policy control creation request sent by a session management function SMF network element, wherein the session policy control creation request is created according to a session establishment request sent by terminal equipment, and the session policy control creation request carries private network service identification information; inquiring a service control strategy corresponding to the private network service identification information according to a preset corresponding relation table, wherein the corresponding relation table is used for indicating the corresponding relation between the private network service identification information and the service control strategy; and sending a session policy control creation response to the SMF network element, wherein the session policy control creation response carries the service control policy so that the user plane function UPF network element executes the service control policy to provide services for the terminal equipment.

The processing unit 910 may perform the following steps of the method embodiment described above: a session policy control creation request is sent to a PCF network element, and the session policy control creation request is created according to a session establishment request sent by a terminal device, wherein the session policy control creation request carries private network service identification information; receiving a session policy control creation response sent by the PCF network element, wherein the session policy control creation response carries a service control policy, the service control policy is obtained by inquiring the service control policy corresponding to the private network service identification information through the PCF network element according to a preset corresponding relation table, and the corresponding relation table is used for indicating the corresponding relation between the private network service identification information and the service control policy, so that the user plane function UPF network element executes the service control policy and provides services for the terminal equipment.

The storage unit 920 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 9201 and/or cache memory 9202, and may further include Read Only Memory (ROM) 9203.

The storage unit 920 may also include a program/utility 9204 having a set (at least one) of program modules 9205, such program modules 9205 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

The bus 930 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 900 may also communicate with one or more external devices 940 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 900, and/or any devices (e.g., routers, modems, etc.) that enable the electronic device 900 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 950. Also, electronic device 900 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 960. As shown, the network adapter 960 communicates with other modules of the electronic device 900 over the bus 930. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 900, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. On which a program product is stored which enables the implementation of the method described above of the present disclosure. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the "exemplary methods" section of this specification, when the program product is run on the terminal device.

More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

Claims

1. The private network service policy control method is applied to a policy control function PCF network element side and is characterized by comprising the following steps:

sending a session policy control creation response to the SMF network element, wherein the session policy control creation response carries the service control policy, so that a user plane function UPF network element executes the service control policy to provide service for the terminal equipment;

wherein, the private network service identification information comprises: a private network identifier for distinguishing different private networks and a service identifier for distinguishing different service packages in one private network.

2. The private network service policy control method according to claim 1, wherein one private network corresponds to one private network identifier, one private network identifier corresponds to at least one service identifier, and one service identifier corresponds to one service control policy.

3. The private network service policy control method according to claim 1, wherein the preset correspondence table includes a correspondence between the private network identifier and the service identifier, and a correspondence between the service identifier and the service control policy.

4. A private network service policy control method according to any of claims 1-3, characterized in that before said receiving the session policy control creation request sent by a session management function SMF network element, said method further comprises:

and the AMF network element receives the subscription data sent by the UDM network element, wherein the subscription data carries the private network service identification information.

5. A private network service policy control method according to any one of claims 1-3, wherein said receiving a session policy control creation request sent by a session management function SMF network element, said session policy control creation request being created according to a session establishment request sent by said terminal device, comprises:

6. A private network service policy control method is applied to SMF network element side, which is characterized in that,

the method comprises the following steps:

receiving a session policy control creation response sent by the PCF network element, wherein the session policy control creation response carries a service control policy, the service control policy is obtained by inquiring a service control policy corresponding to the private network service identification information through the PCF network element according to a preset corresponding relation table, and the corresponding relation table is used for indicating a corresponding relation between the private network service identification information and the service control policy so as to enable a user plane function UPF network element to execute the service control policy and provide service for the terminal equipment;

7. The private network service policy control method according to claim 6, wherein said sending the session policy control creation request to the PCF network element, the session policy control creation request being created according to a session establishment request sent by the terminal device, includes:

8. A private network service policy control device applied to a PCF network element side, characterized in that the device comprises:

a response module, configured to send a session policy control creation response to an SMF network element, where the session policy control creation response carries the service control policy, so that a user plane function UPF network element executes the service control policy to provide a service for the terminal device;

9. A private network service policy control device applied to an SMF network element side, the device comprising:

the second receiving module is configured to receive a session policy control creation response sent by the PCF network element, where the session policy control creation response carries a service control policy, where the service control policy is obtained by querying, by the PCF network element, a service control policy corresponding to the private network service identification information according to a preset correspondence table, where the correspondence table is used to indicate a correspondence between the private network service identification information and the service control policy, so that a user plane function UPF network element executes the service control policy and provides a service for the terminal device;

10. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the private network traffic policy control method of any one of claims 1-5 or to perform the private network traffic policy control method of claims 6-7 via execution of the executable instructions.

11. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program, when executed by a processor, implements the private network service policy control method of any one of claims 1-5 or implements the private network service policy control method of claims 6-7.