CN114745375A

CN114745375A - Service function implementation method and device and electronic equipment

Info

Publication number: CN114745375A
Application number: CN202011540351.3A
Authority: CN
Inventors: 刘胜国; 施荣荣; 谢小福
Original assignee: Chengdu TD Tech Ltd
Current assignee: Chengdu TD Tech Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2022-07-12
Anticipated expiration: 2040-12-23
Also published as: CN114745375B

Abstract

The embodiment of the invention provides a method, a device and an electronic device for realizing service function, wherein the method is applied to a proxy User Plane Function (UPF), and a message forwarding control protocol (PFCP) module is deployed in the proxy UPF, and the method specifically comprises the following steps: receiving a control signaling sent by a Session Management Function (SMF) based on a prestored selection strategy, wherein the control signaling contains a UPF identifier, determining a target UPF corresponding to the UPF identifier, determining a transmission route based on the target UPF, sending the control signaling to the target UPF according to the transmission route, so that the target UPF acquires a target data packet from a base station according to the control signaling, and sending the target data packet to a corresponding data network to realize a corresponding service function. The embodiment improves the transmission speed of the data, and further ensures the normal realization of each service function.

Description

Service function implementation method and device and electronic equipment

Technical Field

The embodiment of the invention relates to the field of communication, in particular to a method and a device for realizing a service function and electronic equipment.

Background

With the development of communication technology, the application of the fifth Generation (5Generation, 5G) mobile communication technology is more and more extensive, and a 5G base station is used as a New Generation Radio Access Network Node (NG RAN Node, gNB) and a 5G core Network, and a plurality of functional entities are also added. Such as Access and mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), and Service Communication Proxy (SCP).

The 5G network standard system architecture further strengthens the separation of control plane function and user plane function, the SMF is responsible for the management and control of the session, and the UPF is responsible for the forwarding function of the user plane only. The 5G architecture can support UPF centralized deployment and also can support UPF deployment to a place closer to an access network, and provides low-delay data transmission service for delay-sensitive services. And enterprise users hope to obtain low-delay data business services and simultaneously hope to ensure the safety of self business data. That is, the enterprise user wants the service data to directly enter the enterprise internal network, and not to forward through the operator network. Therefore, the UPF serving enterprise users needs to be deployed nearby in the edge network where the enterprise is located.

However, as the number of UPFs deployed in the edge network increases, the number of interfaces that the SMF needs to manage increases, and the algorithm for the SMF to select the UPF is more and more complex, and the like, the transmission speed of data is reduced, thereby affecting the normal implementation of each service function.

Disclosure of Invention

The embodiment of the invention provides a method, a device and electronic equipment for realizing service functions, which are used for improving the data transmission speed and further ensuring the normal realization of each service function.

In a first aspect, an embodiment of the present invention provides a method for implementing a service function, where the method is applied to a proxy user plane function UPF, and a packet forwarding control protocol PFCP module is deployed in the proxy UPF, where the method includes:

receiving a control signaling sent by a Session Management Function (SMF) based on a pre-stored selection strategy, wherein the control signaling comprises a UPF identifier;

determining a target UPF corresponding to the UPF identification, and determining a transmission route based on the target UPF;

and sending the control signaling to the target UPF according to the transmission route so that the target UPF acquires a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

Optionally, the receiving a control signaling sent by the session management function SMF based on a pre-stored selection policy includes:

and receiving a control signaling generated and sent by the SMF according to the slice identifier NSSAI, the tracking area identifier TAI or the data network name DNN.

Optionally, the determining a target UPF corresponding to the UPF identifier and determining a transmission route based on the target UPF include:

determining a target UPF corresponding to the UPF identification;

judging whether the target UPF is a UPF in an edge network range governed by the agent UPF;

if yes, determining a transmission route based on the target UPF.

Optionally, the method further includes:

and if not, sending a control signaling error prompt to the SMF so that the SMF sends the control signaling to a correct UPF.

Optionally, the sending the control signaling to the target UPF according to the transmission route, so that the target UPF obtains a target data packet from a base station according to the control signaling, and sends the target data packet to a corresponding data network to implement a corresponding service function, includes:

sending the control information to the target UPF according to the transmission route so that the target UPF acquires a target data packet from a base station according to the control signaling and determines whether a service function corresponding to the target data packet is governed by the current edge network range, if so, the target UPF sends the target data packet to a local data network so as to realize the corresponding service function;

and if not, the proxy UPF receives the target data packet sent by the target UPF and forwards the target data packet to a corresponding target data network to realize a corresponding service function.

In a second aspect, an embodiment of the present invention provides a method for implementing a service function, where the method is applied to a session management function SMF, and the method includes:

generating a control signaling containing a UPF identifier based on a pre-stored selection strategy; and sending the control signaling containing the UPF identification to an agent user plane function UPF (user plane function) with a message forwarding control protocol PFCP (pulse frequency modulation) module, so that the agent UPF determines a target UPF corresponding to the UPF identification according to the control signaling containing the UPF identification, determines a transmission path based on the target UPF, and sends the control signaling to the target UPF according to the transmission path, so that the target UPF acquires a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function. Optionally, the method further includes: and if the type of the target UPF corresponding to the UPF identifier is the regional UPF, sending a control signaling containing the UPF identifier to the target regional UPF so that the target regional UPF acquires a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

In a third aspect, an embodiment of the present invention provides a service function implementing apparatus, which is applied to a proxy user plane function UPF, where a packet forwarding control protocol PFCP module is deployed in the proxy UPF, and the apparatus includes:

the receiving module is used for receiving a control signaling sent by a Session Management Function (SMF) based on a pre-stored selection strategy, wherein the control signaling comprises a UPF (user equipment identifier);

the processing module is used for determining a target UPF corresponding to the UPF identification and determining a transmission route based on the target UPF;

and the processing module is also used for sending the control signaling to the target UPF according to the transmission route so that the target UPF acquires a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

In a fourth aspect, an embodiment of the present invention provides a service function implementing device, which is applied to a session management function SMF, where the device includes:

the generating module is used for generating a control signaling containing the UPF identification based on a prestored selection strategy;

and the processing module is used for sending the control signaling containing the UPF identification to an agent user plane function UPF (user plane function) with a message forwarding control protocol PFCP (pulse frequency modulation) module, so that the agent UPF determines a target UPF corresponding to the UPF identification according to the control signaling containing the UPF identification, determines a transmission path based on the target UPF, and then sends the control signaling to the target UPF according to the transmission path, so that the target UPF acquires a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

In a fifth aspect, an embodiment of the present invention provides an electronic device, including: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executes the computer-executable instructions stored by the memory to cause the at least one processor to perform the business function implementation methods as set forth in the first aspect and various possible designs of the first aspect, and the second aspect and various possible designs of the second aspect.

In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when a processor executes the business function implementation method described in the first aspect and various possible designs of the first aspect, and the second aspect and various possible designs of the second aspect.

In a seventh aspect, an embodiment of the present invention provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the service function implementation method described in the first aspect and the various possible designs of the first aspect, and the second aspect and the various possible designs of the second aspect, is implemented.

The embodiment of the invention provides a method, a device and an electronic device for realizing service functions, and after the scheme is adopted, the proxy UPF with the PFCP module deployed may first receive a control command containing the UPF identifier sent by the SMF based on a pre-stored selection policy, then determining a target UPF corresponding to the UPF identification, determining a transmission route based on the target UPF, sending a control signaling to the corresponding target UPF according to the transmission route, so that the target UPF acquires the target data packet from the base station according to the control signaling and sends the target data packet to the corresponding data network to realize the corresponding service function, by deploying the PFCP module in the UPF, the proxy UPF is obtained, and the proxy UPF realizes the SMF interface function proxy, the interfaces needed to be managed by the SMF are reduced, and the difficulty of selecting the UPF algorithm by the SMF is reduced, the data transmission speed is increased, and the normal realization of each service function is further ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an application system of a service function implementation method according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of a service function implementation method according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of a service function implementation method according to an embodiment of the present invention;

fig. 4 is an application diagram of a session establishment procedure provided in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a service function implementation apparatus according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of other sequential examples than those illustrated or described. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the prior art, a 5G network standard system architecture further strengthens the separation of control plane functions and user plane functions, and SMF is responsible for the management and control of sessions, and UPF is responsible for the forwarding function of the user plane only. The 5G architecture can support UPF centralized deployment and also can support UPF deployment to a place closer to an access network, and provides low-delay data transmission service for delay-sensitive services. And enterprise users hope to obtain low-delay data business service and simultaneously hope to ensure the safety of self business data. That is, the enterprise user wants the service data to directly enter the enterprise internal network, and not to forward through the operator network. Accordingly, UPFs serving enterprise users need to be deployed nearby in the edge network where the enterprise is located. However, as the number of UPFs deployed in the edge network increases, the number of interfaces that the SMF needs to manage increases, and the SMF needs to configure the governed UPF list, any change in the UPF (such as an increase in the UPF and a decrease in the UPF) affects the configuration of the SMF, and the algorithm for the SMF to select the UPF is more and more complex, which reduces the data transmission speed, thereby affecting the normal implementation of each service function.

Based on the above problems, according to the present application, a PFCP (Packet Forwarding Control Protocol) module is deployed in an UPF to obtain a proxy UPF, and the proxy UPF is enabled to implement a mode of SMF interface function proxy, so that interfaces to be managed by the SMF are reduced, difficulty in implementing an algorithm for selecting the UPF by the SMF is reduced, and a technical effect of improving a data transmission speed and ensuring normal implementation of each service function is achieved.

In addition, for the service function sensitive to time delay, low-time delay data transmission service such as automatic driving and automatic control can be provided, and the normal implementation of the service is ensured.

Fig. 1 is a schematic diagram of an architecture of an application system of a service function implementation method provided in an embodiment of the present invention, and as shown in fig. 1, a 3GPP standard architecture defines an N4 interface between an SMF and a UPF, and may adopt a UDP-based PFCP protocol. To reduce the SMF pressure on a large number of UPF accesses, a hierarchical UPF deployment model may be employed. Correspondingly, one or more PFCP modules are deployed according to the hierarchical mechanism, so that the communication between the SMF and UPFs at different levels is realized. The PFCP protocol proxy module may be co-deployed with the UPF, or may be deployed independently, and the PFCP protocol may not be deployed for the edge UPF that is only used for data plane transmission, and the PFCP module may be deployed for the UPF that needs to be docked with the SMF. In this embodiment, taking two-level UPF networking as an example, the PFCP module and the UPF are co-deployed to form a proxy UPF (i.e., UPF1 in fig. 1). Network elements such as AMF, SMF and the like are intensively deployed at the cloud, an operator can divide areas according to flow or regional distance, and deploys independent UPFs in the areas, namely the areas can deploy independent UPFs, and an enterprise edge network deploys a plurality of UPFs for serving enterprises to realize related business functions.

The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 2 is a flowchart illustrating a method for implementing a service function according to an embodiment of the present invention, where the method is applied to a proxy user plane function UPF, and a packet forwarding control protocol PFCP module is deployed in the proxy UPF, as shown in fig. 2, the method according to the embodiment may include:

s201: and receiving a control signaling sent by the SMF based on a pre-stored selection strategy, wherein the control signaling comprises a UPF identifier.

In this embodiment, after generating the control signaling containing the UPF identifier, the SMF may send the control signaling to the SMF.

Further, the SMF may select the UPF according to a Slice Identifier (NSSAI), a Tracking Area Identifier (TAI), or a Data Network Name (DNN). Correspondingly, one specific implementation manner for receiving the control signaling sent by the SMF based on the pre-stored selection policy may be: and receiving the control signaling generated and sent by the SMF according to the NSSAI, the TAI or the DNN.

S202: a target UPF corresponding to the UPF identification is determined and a transmission route is determined based on the target UPF.

In this embodiment, after receiving the control signaling, the corresponding target UPF may be determined according to the UPF identifier included in the control signaling, and then the transmission route may be determined based on the target UPF. The target UPF may be a proxy UPF with a PFCP module deployed therein, or a non-proxy UPF without a PFCP module deployed therein.

Further, when determining the transmission route based on the target UPF, a plurality of achievable transmission routes may be involved, and therefore, a most suitable transmission route may be selected based on an actual application scenario. For example, a transmission route involving the fewest transmission nodes may be selected, a transmission route with the shortest distance may also be selected, and the selection may be specifically performed according to an actual application scenario, and is not limited herein.

In addition, when determining a target UPF corresponding to the UPF identifier and determining the transmission route based on the target UPF, the method may further include:

and determining a target UPF corresponding to the UPF identification.

And judging whether the target UPF is a UPF in the edge network range governed by the agent UPF.

If yes, determining a transmission route based on the target UPF.

Specifically, each agent UPF governs a certain range of edge networks, different UPFs for implementing service functions are distributed in the edge networks, and specific setting rules of the UPFs can be set according to actual service functions, which are not limited in detail herein. After determining the target UPF, it may be determined whether the target UPF is a UPF within the edge network governed by the proxy UPF, and if so, the transmission route may be determined based on the target UPF. If not, sending a control signaling error prompt to the SMF so that the SMF sends the control signaling to the correct UPF.

S203: and sending the control signaling to the target UPF according to the transmission route so that the target UPF acquires the target data packet from the base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

In this embodiment, after the transmission route is determined, the control information may be sent to the target UPF according to the transmission route, so that the UPF implements the corresponding service function.

Further, sending a control signaling to the target UPF according to the transmission route, so that the target UPF obtains a target data packet from a base station according to the control signaling, and sends the target data packet to a corresponding data network to implement a corresponding service function, may further include:

and sending the control information to the target UPF according to the transmission route so that the target UPF acquires a target data packet from a base station according to the control signaling and determines whether the service function corresponding to the target data packet is governed by the current edge network range, if so, the target UPF sends the target data packet to a local data network so as to realize the corresponding service function. And if not, the proxy UPF receives the target data packet sent by the target UPF and forwards the target data packet to a corresponding target data network to realize a corresponding service function.

After the scheme is adopted, the proxy UPF with the PFCP module can firstly receive a control instruction which is sent by the SMF based on a prestored selection strategy and contains the UPF identification, then a target UPF corresponding to the UPF identification is determined, a transmission route is determined based on the target UPF, and then a control signaling is sent to the corresponding target UPF according to the transmission route, so that the target UPF obtains a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize the corresponding service function.

Based on the method of fig. 2, the present specification also provides some specific embodiments of the method, which are described below.

Fig. 3 is a flowchart illustrating a method for implementing a service function according to an embodiment of the present invention, where the method of this embodiment is applied to a session management function SMF, and as shown in fig. 3, the method of this embodiment may include:

s301: and generating a control signaling containing UPF identification based on the pre-stored selection strategy.

S302: and sending the control signaling containing the UPF identification to an agent user plane function UPF (user plane function) with a message forwarding control protocol PFCP (pulse frequency modulation) module, so that the agent UPF determines a target UPF corresponding to the UPF identification according to the control signaling containing the UPF identification, determines a transmission path based on the target UPF, and then sends the control signaling to the target UPF according to the transmission path, so that the target UPF acquires a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

In this embodiment, the SMF may first determine a target UPF according to an actual application scenario, and then generate a control signaling corresponding to the target UPF, that is, a control signaling including a UPF identifier, based on a selection policy such as NSSAI, TAI, or DNN. And then the control signaling containing the UPF identification is sent to an agent UPF with a PFCP module, so that the agent UPF determines a target UPF corresponding to the UPF identification according to the control signaling containing the UPF identification, determines a transmission path based on the target UPF, and sends the control signaling to the target UPF according to the transmission path, so that the target UPF obtains a target data packet from a base station according to the control signaling, and sends the target data packet to a corresponding data network to realize a corresponding service function.

Furthermore, in another embodiment, the method may further include:

and if the type of the target UPF corresponding to the UPF identifier is the area UPF, sending a control signaling containing the UPF identifier to the target area UPF so that the target area UPF acquires a target data packet from the base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

In this embodiment, there may be multiple types of UPFs, and if the UPF is a deployed UPF in an area, the type of UPF may be an area UPF, and if the UPF is a deployed UPF in an edge network, the type of UPF may be an edge UPF.

Further, if the type of the target UPF corresponding to the UPF identifier is the area UPF, the control signaling including the UPF identifier may be directly sent to the target area UPF, so that the target area UPF obtains the target data packet from the base station according to the control signaling, and sends the target data packet to the corresponding data network to implement the corresponding service function, without sending the target data packet to the edge network, thereby accelerating implementation of the service function.

In addition, in another embodiment, continuing to take the embodiment in fig. 1 as an example, the embodiment takes a two-level UPF networking as an example, and the UPF1 is a proxy UPF, and network elements such as AMF and SMF are centrally deployed in the cloud. An operator may divide an area according to traffic or regional distance and deploy a single UPF in the area, that is, an area may deploy a single UPF (corresponding to the UPF4 in fig. 1), and an enterprise edge network deploys a plurality of UPFs (corresponding to the UPFs 2 and 3 in fig. 1) serving an enterprise and implementing related business functions. Correspondingly, the UPF1 may forward control signaling received from the SMF to the appropriate subordinate UPF according to the selection policy. The user plane between UPF1 and zone UPF4 is the N9 interface defined by the 3GPP standard. Since the UPFs 2 and 3 do not have a subordinate UPF, a PFCP agent may not be deployed. An N4+ interface is established between the UPF2/3 and the upper UPF1, and a PFCP protocol is adopted. The user plane between the UPF2/3 and the upper UPF1 uses the N9 interface defined by the 3GPP standard. The UPF2/3 establishes an N3 interface with a base station (NR, New Radio), and forwards a Data packet received from the base station to a Data Network (DN) according to the control signaling forwarded by the UPF 1. Further, to reduce latency, the local traffic data may be forwarded directly to the local network. The services within the range of other edge networks can be forwarded to the upper UPF, and the upper UPF forwards the services to other data networks according to the strategy.

Fig. 4 is an application schematic diagram of a session establishment procedure provided in the embodiment of the present invention, and as shown in fig. 4, in this example, a PFCP proxy module may establish an N4 interface with an SMF, and an UPF1 and an UPF2 respectively establish an N4+ interface with the PFCP proxy module. The specific process can be as follows: and after the AMF registration is completed, the terminal initiates a PDU session establishment flow. The SMF selects UPF according to own policy and sends an N4 interface session establishment request to the PFCP proxy module. And after receiving the N4 session establishment request, the PFCP proxy module selects the UPF2 according to the local policy and forwards the N4+ session establishment request message. The UPF2 allocates local N3 interface GTPU tunnel resources and then returns an N4+ session establishment response to the PFCP proxy. The PFCP proxy returns a session establishment response of N4 to the SMF, and carries the tunnel information of the N3 interface distributed by the UPF 2. The SMF continues to complete the PDU session establishment flow, and then sends an N4 session modification request to the PFCP proxy module, wherein the request carries the tunnel information of the N3 interface at the NR side. The PFCP proxy module forwards the N4 session modification request to the UPF2 according to the session information. The UPF2 modifies the local N3 interface information, establishes a user plane bidirectional tunnel with the NR, and then returns an N4 session modification response to the PFCP proxy. The PFCP proxy module returns an N4 interface modification response to the SMF. Thus, the NR may forward the data directly to the UPF2, which is then forwarded by the UPF2 to an external data network (e.g., an enterprise's internal data network).

Based on the same idea, an embodiment of the present specification further provides a device corresponding to the method, and fig. 5 is a schematic structural diagram of a service function implementation device provided in the embodiment of the present invention, and is applied to a proxy user plane function UPF, where a packet forwarding control protocol PFCP module is deployed, and as shown in fig. 5, the method may include:

a receiving module 501, configured to receive a control signaling sent by a session management function SMF based on a pre-stored selection policy, where the control signaling includes a UPF identifier.

In this embodiment, the receiving module 501 is further configured to:

A processing module 502 for determining a target UPF corresponding to the UPF identification and determining a transmission route based on the target UPF.

In this embodiment, the processing module 502 is further configured to:

and determining a target UPF corresponding to the UPF identification.

And judging whether the target UPF is the UPF in the edge network range governed by the agent UPF.

If yes, determining a transmission route based on the target UPF.

The processing module 502 is further configured to send the control signaling to the target UPF according to the transmission route, so that the target UPF obtains a target data packet from a base station according to the control signaling, and sends the target data packet to a corresponding data network to implement a corresponding service function.

In this embodiment, the processing module 502 is further configured to:

and sending the control information to the target UPF according to the transmission route so that the target UPF acquires a target data packet from a base station according to the control signaling and determines whether the service function corresponding to the target data packet is governed by the current edge network range, if so, the target UPF sends the target data packet to a local data network so as to realize the corresponding service function.

In addition, in another embodiment, a service function implementing apparatus is further provided, where the apparatus is applied to a session management function SMF, and the apparatus may include:

and the generating module is used for generating a control signaling containing the UPF identification based on the pre-stored selection strategy.

In this embodiment, the processing module is further configured to:

and if the type of the target UPF corresponding to the UPF identifier is the regional UPF, sending a control signaling containing the UPF identifier to the target regional UPF so that the target regional UPF acquires a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

The apparatus provided in the embodiment of the present invention may implement the method in the embodiment shown in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 6 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention. As shown in fig. 6, the present embodiment provides an apparatus 600 including: at least one processor 601 and memory 602. The processor 601 and the memory 602 are connected by a bus 603.

In a specific implementation, at least one processor 601 executes computer-executable instructions stored by the memory 602 to cause the at least one processor 601 to perform the methods of the above-described method embodiments.

For a specific implementation process of the processor 601, reference may be made to the above method embodiments, which implement the principle and the technical effect similarly, and details of this embodiment are not described herein again.

In the embodiment shown in fig. 6, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.

The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.

The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer execution instruction is stored in the computer-readable storage medium, and when a processor executes the computer execution instruction, the service function implementation method of the foregoing method embodiment is implemented.

An embodiment of the present invention further provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the service function implementation method described above is implemented.

The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for realizing service function is applied to a proxy User Plane Function (UPF), wherein a message forwarding control protocol (PFCP) module is deployed in the UPF, and the method comprises the following steps:

2. The method according to claim 1, wherein the receiving the control signaling sent by the Session Management Function (SMF) based on the pre-stored selection policy comprises:

3. The method of claim 1, wherein said determining a target UPF corresponding to said UPF identification and determining a transmission route based on said target UPF comprises:

determining a target UPF corresponding to the UPF identification;

if yes, determining a transmission route based on the target UPF.

4. The method of claim 3, further comprising:

5. The method according to any one of claims 1 to 4, wherein the sending the control signaling to the target UPF according to the transmission route, so that the target UPF obtains a target data packet from a base station according to the control signaling, and sends the target data packet to a corresponding data network to implement a corresponding service function, includes:

6. A method for implementing a service function is applied to a Session Management Function (SMF), and comprises the following steps:

generating a control signaling containing a UPF identifier based on a pre-stored selection strategy;

and sending the control signaling containing the UPF identification to an agent user plane function UPF (user plane function) with a message forwarding control protocol PFCP (pulse frequency modulation) module, so that the agent UPF determines a target UPF corresponding to the UPF identification according to the control signaling containing the UPF identification, determines a transmission path based on the target UPF, and sends the control signaling to the target UPF according to the transmission path, so that the target UPF acquires a target data packet from a base station according to the control signaling and sends the target data packet to a corresponding data network to realize a corresponding service function.

7. The method of claim 6, further comprising:

8. A service function realizing device is applied to a proxy User Plane Function (UPF), wherein a message forwarding control protocol (PFCP) module is deployed in the UPF, and the device comprises:

and the processing module is further configured to send the control signaling to the target UPF according to the transmission route, so that the target UPF obtains a target data packet from a base station according to the control signaling, and sends the target data packet to a corresponding data network to implement a corresponding service function.

9. A service function implementation apparatus, applied to a session management function SMF, the apparatus comprising:

10. An electronic device, comprising: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the business function implementation method of any one of claims 1 to 5 or 6-7.

11. A computer-readable storage medium, wherein a computer-executable instruction is stored in the computer-readable storage medium, and when the computer-executable instruction is executed by a processor, the service function implementation method according to any one of claims 1 to 5 or 6 to 7 is implemented.

12. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the service functionality implementation method of any one of claims 1 to 5 or 6-7.