CN111491009A

CN111491009A - Business cooperative processing method and related equipment

Info

Publication number: CN111491009A
Application number: CN202010223828.9A
Authority: CN
Inventors: 张卓筠
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-08-04

Abstract

The disclosure provides a service cooperative processing method and related equipment. The method comprises the following steps: utilizing an edge server to receive an uplink data packet from a first user terminal, wherein a source address and a destination address of the uplink data packet are respectively network addresses of the first user terminal and the edge server; processing the uplink data packet by the edge server to generate a first data packet, and setting a destination address of the first data packet as a network address of the central server, so that the first data packet is sent to the central server through the edge cloud data transmission tunnel according to the network address of the central server, and the central server continues to process the first data packet; the side cloud data transmission tunnel is established on a first protocol data unit session anchor point user plane function and a second protocol data unit session anchor point user plane function, the first protocol data unit session anchor point user plane function is connected with the central server, and the second protocol data unit session anchor point user plane function is connected with the edge server.

Description

Business cooperative processing method and related equipment

Technical Field

The present disclosure relates to the field of computer technologies, and in particular, to a method and an apparatus for service cooperative processing, an electronic device, and a computer-readable storage medium.

Background

Compared with 4G (4)^thGeneration, fourth generation) core network has problems due to insufficient Edge Computing (Edge Computing) support capability, and the 5G core network considers the requirement of Edge Computing support in the architecture and supports Edge Computing at both the network level and the capability opening level. At the network level, the 5G core network supports various flexible local offloading mechanisms, mobility, charging and QoS (Quality of Service), and lawful interception. For the local breakout mechanism,the 5G core network supports an Uplink Classifier (U L C L) function and a BP (Branch Point) function.

However, when the edge server and the central server are not directly connected, the 5G core network in the related art can only support single-point processing of the service, that is, the service is processed by the central server or by the edge server, and cannot support a scenario in which the service needs to be processed by both the central server and the edge server.

Therefore, a new service cooperative processing method and apparatus, an electronic device, and a computer-readable storage medium are needed.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure.

Disclosure of Invention

The embodiment of the disclosure provides a service cooperative processing method and device, an electronic device and a computer readable storage medium, which can realize multi-point processing of services.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

The embodiment of the disclosure provides a service cooperative processing method, which includes: utilizing an edge server to receive an uplink data packet from a first user terminal, wherein a source address and a destination address of the uplink data packet of the first user terminal are respectively a network address of the first user terminal and a network address of the edge server; processing the uplink data packet through the edge server to generate a first data packet, and setting a destination address of the first data packet as a network address of a central server, so that the first data packet is sent to the central server through a side cloud data transmission tunnel according to the network address of the central server, and the central server continues to process the first data packet; the edge cloud data transmission tunnel is established on a first protocol data unit session anchor point user plane function and a second protocol data unit session anchor point user plane function, the first protocol data unit session anchor point user plane function is connected with the central server, and the second protocol data unit session anchor point user plane function is connected with the edge server.

The embodiment of the present disclosure provides a service cooperative processing apparatus, where the apparatus includes: an uplink data packet receiving unit, configured to receive an uplink data packet from a first user terminal by using an edge server, where a source address and a destination address of the uplink data packet are a network address of the first user terminal and a network address of the edge server, respectively; the uplink data packet processing unit is used for generating a first data packet after processing the uplink data packet through the edge server, and modifying a destination address of the first data packet into a network address of a central server, so that the first data packet is sent to the central server through a side cloud data transmission tunnel according to the network address of the central server, and the central server continues to process the first data packet; the edge cloud data transmission tunnel is established on a first protocol data unit session anchor point user plane function and a second protocol data unit session anchor point user plane function, the first protocol data unit session anchor point user plane function is connected with the central server, and the second protocol data unit session anchor point user plane function is connected with the edge server.

The embodiments of the present disclosure provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method for service cooperative processing as described in the embodiments above is implemented.

An embodiment of the present disclosure provides an electronic device, including: one or more processors; a storage device configured to store one or more programs, which when executed by the one or more processors, cause the one or more processors to implement the service co-processing method as described in the above embodiments.

In the technical solutions provided in some embodiments of the present disclosure, when an Edge server receives an uplink Data packet from a first user terminal, the Edge server may process the uplink Data packet to generate a first Data packet, and further determine whether the first Data packet processed by the Edge server needs to be sent to a central server for processing, and if the first Data packet needs to be sent to the central server for processing, the Edge server may set a destination address of the first Data packet as a Network address of the central server, so that, on one hand, the Edge server may send the first Data packet to the central server for further processing by using a pre-established Edge cloud Data transmission tunnel according to the destination address of the first Data packet, thereby implementing Multi-point processing of a service, that is, a service simultaneously passes through the Edge server and the central server, on the other hand, the Edge server may be deployed in a local Data Network (L, hereinafter, referred to as L, and generally, a MEC (Multi-access Computing platform) is also deployed in the Edge server.

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 present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty. In the drawings:

fig. 1 is a schematic diagram illustrating an exemplary system architecture to which a service co-processing method or a service co-processing apparatus according to an embodiment of the present disclosure may be applied;

FIG. 2 illustrates a schematic structural diagram of a computer system suitable for use with the electronic device used to implement embodiments of the present disclosure;

FIG. 3 schematically illustrates a U L C L shunt architecture diagram in the related art;

FIG. 4 schematically shows a flow diagram of a business coprocessing method according to an embodiment of the disclosure;

FIG. 5 schematically shows a flow diagram of a business coprocessing method according to an embodiment of the disclosure;

FIG. 6 is a diagram illustrating a processing procedure of step S510 shown in FIG. 5 in one embodiment;

FIG. 7 schematically illustrates an architecture diagram supporting edge cloud coordination according to an embodiment of the present disclosure;

FIG. 8 is a diagram illustrating a processing procedure of step S420 shown in FIG. 4 in one embodiment;

FIG. 9 schematically shows a flow diagram of a business coprocessing method according to an embodiment of the disclosure;

FIG. 10 schematically illustrates a business flow diagram of a business coprocessing method according to an embodiment of the disclosure;

FIG. 11 schematically illustrates an architecture diagram supporting edge cloud coordination according to an embodiment of the present disclosure;

FIG. 12 is a diagram illustrating a processing procedure of step S420 shown in FIG. 4 in one embodiment;

FIG. 13 schematically illustrates a business flow diagram of a business coprocessing method according to an embodiment of the disclosure;

fig. 14 schematically shows a block diagram of a service cooperative processing apparatus according to an embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different 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 example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

Fig. 1 shows a schematic diagram of an exemplary system architecture 100 to which a business coprocessing method or business coprocessing apparatus of the embodiments of the disclosure can be applied.

As shown in fig. 1, the system architecture 100 may include

user terminals

101, 102, a network 103, and a server 104. The network 103 serves as a medium for providing communication links between the

user terminals

101, 102 and the server 104. Network 103 may include various connection types, such as wired, wireless communication links, or fiber optic cables, to name a few.

A user may use the

user terminals

101, 102 to interact with the server 104 over the network 103 to receive or send messages or the like. Among other things, the

user terminals

101, 102 may be various electronic devices having a display screen and supporting the ability to connect to the network 103, including but not limited to smartphones, tablets, laptop portable computers, desktop computers, wearable devices, virtual reality devices, augmented reality devices, gamepads, smart homes, and so forth.

The server 104 may be a server that provides various services, such as a business and back-office management server that provides support for devices operated by users with the

user terminals

101, 102. The service and background management server can analyze and process the received data such as the request and the like, and feed back the processing result to the user terminal. The servers 104 may be divided into edge servers and center servers depending on the deployment location. The edge server may receive an uplink data packet from the user terminal 101 (which may also be the user terminal 102), where a source address and a destination address of the uplink data packet of the user terminal 101 are a network address of the user terminal 101 and a network address of the edge server, respectively; the edge server can process the uplink data packet of the user terminal 101, and modifies the destination address of the uplink data packet of the user terminal 101 into the network address of the central server, so that the uplink data packet of the user terminal 101 is sent to the central server through the edge cloud data transmission tunnel according to the network address of the central server, and the central server continues to process the uplink data packet of the user terminal 101; the edge cloud data transmission tunnel is established on a first protocol data unit session anchor point user plane function and a second protocol data unit session anchor point user plane function, the first protocol data unit session anchor point user plane function is connected with the central server, and the second protocol data unit session anchor point user plane function is connected with the edge server.

It should be understood that the number of the user terminals, the networks, and the servers in fig. 1 is only illustrative, and the server 104 may be a physical server, a server cluster composed of a plurality of servers, and a cloud server, and may have any number of user terminals, networks, and servers according to actual needs.

FIG. 2 illustrates a schematic structural diagram of a computer system suitable for use in implementing the electronic device of an embodiment of the present disclosure.

It should be noted that the computer system 200 of the electronic device shown in fig. 2 is only an example, and should not bring any limitation to the functions and the scope of the application of the embodiments of the present disclosure.

As shown in fig. 2, the computer system 200 includes a Central Processing Unit (CPU)201 that can perform various appropriate actions and processes in accordance with a program stored in a Read-Only Memory (ROM) 202 or a program loaded from a storage section 208 into a Random Access Memory (RAM) 203. In the RAM 203, various programs and data necessary for system operation are also stored. The CPU 201, ROM 202, and RAM 203 are connected to each other via a bus 204. An input/output (I/O) interface 205 is also connected to bus 204.

To the I/O interface 205, AN input section 206 including a keyboard, a mouse, and the like, AN output section 207 including a terminal such as a Cathode Ray Tube (CRT), a liquid Crystal Display (L CD, &lttttranslation = L "&tttl &ttt/t &gtti required Crystal Display), and the like, a speaker, and the like, a storage section 208 including a hard disk and the like, and a communication section 209 including a Network interface card such as L AN (L oral Area Network) card, a modem, and the like are connected, the communication section 209 performs communication processing via a Network such as the internet, a driver 210 is also connected to the I/O interface 205 as necessary, a removable medium 211 such as a magnetic disk, AN optical disk, a magneto-optical disk, a semiconductor memory, and the like is mounted on the driver 210 as necessary, so that a computer program read out therefrom is mounted into the storage section 208 as necessary.

In particular, the processes described below with reference to the flowcharts may be implemented as computer software programs, according to embodiments of the present disclosure. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable storage medium, the computer program containing program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 209 and/or installed from the removable medium 211. The computer program, when executed by a Central Processing Unit (CPU)201, performs various functions defined in the methods and/or apparatus of the present application.

It should be noted that the computer readable storage medium shown in the present disclosure may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium 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 the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer-readable signal medium may include a propagated data signal with computer-readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable storage medium that is not a computer 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. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF (radio frequency), etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods, apparatus, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present disclosure may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.

As another aspect, the present application also provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer-readable storage medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method as described in the embodiments below. For example, the electronic device may implement the steps shown in fig. 4, 5, 6, 8, 9, or 12.

First, some terms referred to in the embodiments of the present disclosure are explained.

AN (access network): refers to an implementation system composed of a series of transport entities between the core network and the terminal interface in the mobile communication system, which provides the transport bearer capability required for transporting the telecommunication service. This may refer to at least one access network comprising 4G base stations, or 5G base stations RAN (radio access network) and/or non-3GPP (non-3rd Generation Partnership Project, non-third Generation Partnership Project, such as wifi, fixed network access, etc.) access networks connected to a 5G core network.

RAN: is part of a mobile communication system. It exists between a device (e.g., a mobile phone, a computer, or any remotely controlled machine) and a Core Network (CN) to provide a wireless communication link between the two.

NF (network function): the 3GPP adopts or 3GPP defines network functions in a network that possess defined functional behavior and 3GPP defined interfaces.

AMF (Access and Mobility Management Function): the SM message transmission method is mainly responsible for access authentication, authorization and mobility Management, and may also provide transmission for an SM message between a UE (User Equipment) and an SMF (Session Management Function).

SMF: the session management function is mainly responsible for, and the session management function can also have an IP (Internet Protocol) address allocation function. All or part of the SMF functionality may be supported in a single instance of SMF: session management, such as session establishment, modification and release, including channel maintenance between UPF (User Plane Function) and AN node; UE IP address assignment and management (including optional authorization); configure the flow control of the UPF, route the flow to the correct destination, etc.

UPF, which transmits user plane packets by establishing PDU (Protocol Data Unit) sessions (Session), is responsible for routing, forwarding of packet Data, policy enforcement for packet Data, etc. some or all of the UPF functions may be supported in a single instance of UPF, such as packet routing and forwarding (e.g., support of uplink classifier U L C L to flow traffic to local Data networks, support of Branch Points (BP) to support multi-homed PDU sessions), etc.

In the related art, in the MEC enhancement (stub on enhancement of support for edge computing in the 5G Core Network) topic of 3GPP R17, a key problem of performing service coordination processing in different N6-L AN (L area Network) is proposed.

After an upstream data packet of a certain service is processed by a service server (hereinafter referred to as an edge server) deployed in an edge data center (hereinafter referred to as a local data network, i.e., L ocal DN; or MEC), it needs to be continuously processed by a service server (hereinafter referred to as a central server) deployed in a core cloud data center (hereinafter referred to as a data network, i.e., DN).

However, for this scenario, when there is no direct connection between the edge data center and the core cloud data center, how to implement multipoint processing of the service is temporarily unrelated to the research on the standard. In view of the foregoing service multi-point processing scenario, an embodiment of the present disclosure provides a service multi-point processing scheme, which is used to implement service multi-point processing when an edge data center and a core cloud data center are not directly connected, where the multi-point processing mainly includes processing by the edge data center and the core cloud data center.

In order to achieve the above requirements, the network architecture shown in fig. 3 is introduced into a 5G system, and a scheme called an uplink classifier U L C L in fig. 3 is an architecture diagram supporting traffic offload to an edge data center defined in a standard in the related art.

In the architecture of fig. 3, the gNB is a 5G base station, where the SMF may decide to insert one U L C L in the data path of the PDU Session (Session), i.e., U L C L is inserted in the user plane link of the UE, so that the I-UPF (intermediate-UPF) supports the U L C L function, may offload some uplink packets of the UE to the local data network, I-UPF, according to the data filters issued by the SMF, and forward downlink packets from the central server (center server) and the edge server (edge server) to the UE.

The SMF can decide to insert a UPF.SMF supporting U L0C L in a data path of a PDU session when PDU connection is established or after PDU establishment is completed, and decide to delete a UPF.SMF supporting U L C L in the data path of the PDU session after PDU establishment is completed, wherein the UPF.UE supporting U3876C L in the data path of the PDU session does not sense data transfer by U L C L or sense the function of inserting or deleting U L C L in the PDU session.

Fig. 4 schematically shows a flowchart of a service cooperation processing method according to an embodiment of the present disclosure. As shown in fig. 4, the method provided by the embodiment of the present disclosure may include the following steps.

In step S410, an upstream data packet from the first user terminal is received by the edge server, where a source address and a destination address of the upstream data packet are a network address of the first user terminal and a network address of the edge server, respectively.

In the embodiment of the present disclosure, the first user terminal may be any UE, after the UE establishes a PDU session, the UE may send an uplink data packet to an I-UPF (having a U L C L function) through the gNB, and mark a source address of the uplink data packet as a network address (e.g., an IP address) of the first UE, and a destination address of the uplink data packet as a network address (e.g., an IP address) of an edge server at the MEC, so that the I-UPF supporting the U L C L function may know, according to the destination address of the received uplink data packet, that the uplink data packet is to be sent to the edge server for processing, and at this time, the uplink data packet may be sent to the edge server corresponding to the destination address of the uplink data packet through a PSA-UPF-2 (referred to as a second protocol data unit session anchor user plane function) in communication connection with the MEC.

In step S420, the edge server processes the uplink data packet to generate a first data packet, and sets a destination address of the first data packet as a network address of the central server, so that the first data packet is sent to the central server through the edge cloud data transmission tunnel according to the network address of the central server, and the central server continues to process the first data packet.

The edge cloud data transmission tunnel is established on a first protocol data unit session anchor point user plane function (PSA-UPF-1) and a second protocol data unit session anchor point user plane function, the first protocol data unit session anchor point user plane function is connected with a central server, and the second protocol data unit session anchor point user plane function is connected with an edge server.

In the embodiment of the present disclosure, a side cloud data transmission tunnel may be established on PSA-UPF-1 and PSA-UPF-2, or PSA-UPF-1, I-UPF and PSA-UPF-2, and the side cloud data transmission tunnel is generally a tunnel based on a GTP (general packet radio service Tunneling Protocol) Protocol, but the present disclosure is not limited thereto. In the embodiment of the disclosure, the edge cloud data transmission tunnels refer to data transmission tunnels established on PSA-UPF-1 and PSA-UPF-2 or PSA-UPF-1, I-UPF and PSA-UPF-2 connecting the edge data center and the core cloud data center, and the edge cloud data transmission tunnels can be used for realizing data forwarding between the core cloud data center and the edge data center. An edge server in the MEC processes the uplink data packet sent by the first UE to generate a first data packet, and sets a source address of the first data packet to be still a network address of the first UE, if it is determined that the first data packet needs to be further processed by the central server, a destination address of the first data packet may be set to a network address of one or more central servers in the DN or an external network address (e.g., an IP address) of a central server cluster, and the first data packet is sent to PSA-UPF-2, the PSA-UPF-2 forwards the first data packet to PSA-UPF-1 through the edge cloud data transmission tunnel, and the PSA-UPF-1 sends the first data packet to the central server consistent with the destination address of the first data packet. Or the PSA-UPF-2 forwards the first data packet to the I-UPF through the edge cloud data transmission tunnel, the I-UPF forwards the first data packet to the PSA-UPF-1, and the PSA-UPF-1 sends the first data packet to the central server consistent with the destination address of the first data packet.

In other embodiments, if the edge server determines that the first packet generated after processing the uplink packet does not need to continue to be processed by the central server, the destination address of the first packet generated after processing may be set as the network address of the first UE, then the first packet is sent to PSA-UPF-2, the PSA-UPF-2 knows that the first packet is to be sent to the first UE according to the destination address of the first packet, and then the first packet is sent to the I-UPF according to a method defined in an existing standard, and the I-UPF returns the first packet to the first UE through the gNB according to the destination address of the first packet.

In the service cooperative processing method provided by the embodiment of the disclosure, when the edge server receives the uplink data packet from the first user terminal, the edge server processes the uplink data packet to generate a first data packet, and further determine whether the first data packet needs to be sent to the central server for processing, if the first data packet needs to be sent to the central server for processing, the edge server may set a destination address of a first packet generated after processing the upstream packet as a network address of the central server, therefore, the first data packet can be sent to the central server for further processing by utilizing the pre-established edge cloud data transmission tunnel according to the destination address of the first data packet, thus, multipoint processing of the service can be realized, namely, the service is processed by the edge server and the central server at the same time.

Fig. 5 schematically shows a flowchart of a service cooperation processing method according to an embodiment of the present disclosure. As shown in fig. 5, compared with the above embodiment, the method provided by the embodiment of the present disclosure is different in that the following steps may be further included.

In step S510, when a session management function is used to establish a pdu session connection including an inter-user plane function supporting an uplink classifier function in a first ue, or after the pdu session establishment in the first ue is completed, the inter-user plane function supporting the uplink classifier function is inserted into a data path of the pdu session in the first ue, or when the first ue triggers to establish a Quality of service (QoS) flow on an existing pdu session including the inter-user plane function supporting the uplink classifier function, the session management function is used to trigger establishment of the edge cloud data transmission tunnel.

In the embodiment of the present disclosure, the edge cloud data transmission tunnel may be established when a PDU session with a U L C L function is established, or when an SMF modifies an existing PDU session to add a U L C L function, or when an SMF modifies an existing PDU session to add a new QoS flow.

In other embodiments, for the PDU session supporting the BP function, since the implementation method for establishing the edge cloud data transmission tunnel is the same as the implementation method for establishing the edge cloud data transmission tunnel on the PDU session supporting the U L C L function, the PDU session supporting the U L C L function is taken as an example in the embodiments of the present disclosure.

In the embodiment of the present disclosure, the edge cloud data transmission tunnel may be based on UE granularity, that is, an edge cloud data transmission tunnel is established for one PDU session of one UE, and the edge cloud data transmission tunnel may transmit only a data packet of the PDU session of the UE. Different edge cloud data transmission tunnels can be established for different PDU sessions of a single UE, and a plurality of edge cloud data transmission tunnels can also be established for different PDU sessions of a plurality of UEs.

In an exemplary embodiment, the establishment of the edge cloud data transport tunnel may also be based on UPF granularity, i.e., the edge cloud data transport tunnel is valid for all UEs on two identical PSA UPF-1 and PSA UPF-2 links, or on three identical PSA-UPF-1, I-UPF and PSA-UPF-2 links. A plurality of UEs may share the same edge cloud data transmission tunnel, where the plurality of UEs may be connected to the link through different gnbs or may be connected to the link through the same gNB, which is not limited in this disclosure.

Fig. 6 is a schematic diagram illustrating a processing procedure of step S510 illustrated in fig. 5 in an embodiment. As shown in fig. 6, in the embodiment of the present disclosure, the step S510 may further include the following steps.

In step S521, the session management function sends Core Network Tunnel information (CN (Core Network) Tunnel Info) of the middle user plane function to the session anchor user plane function of the second pdu.

In step S522, the core network tunnel information of the session anchor user plane function of the first pdu is sent to the middle user plane function through the session management function.

When edge cloud data transmission tunnels are established on PSA-UPF-1, I-UPF and PSA-UPF-2, for uplink data packets sent by UE, SMF can respectively establish N4 sessions with PSA-UPF-2, I-UPF and PSA-UPF-1, send CN Tunnel Info of I-UPF corresponding to edge cloud data transmission Tunnel to PSA-UPF-2 through N4 session with PSA-UPF-2, and send CN Tunnel Info of PSA-UPF-1 to I-UPF through N4 session with I-UPF.

The CN Tunnel Info may include parameters such as TEID (Tunnel Endpoint Identifier, used for uniquely identifying an Endpoint of a Tunnel, corresponding to a UE or a session of a UE) and IP address of the UPF device (for example, PSA-UPF-1, I-UPF and PSA-UPF-2 herein) of the corresponding PDU session. Generally, CN Tunnel Info is allocated by each UPF and sent to SMF through corresponding N4 session, and the present disclosure does not limit the allocation body of CN Tunnel Info.

The SMF also sends corresponding data packet detection rules to each UPF, and according to the data packet detection rules sent by the SMF, the PSA-UPF-2 can know whether the first data packet from the edge server needs to be continuously sent to the central server for processing through the edge cloud data transmission tunnel. When the PSA-UPF-2 receives a first data packet sent by the edge server, the PSA-UPF-2 judges how to process the first data packet according to the received data packet detection rule, encapsulates the first data packet according to the corresponding processing rule, and forwards the first data packet on the corresponding PDU session.

FIG. 7 schematically illustrates an architecture diagram supporting edge cloud coordination according to an embodiment of the present disclosure.

As shown in fig. 7, the UE sends an uplink packet to the I-UPF on PDU session-1 through the N3 interface of the gNB, the I-UPF sends the uplink packet sent by the UE to the PSA-UPF-2 through the N9 interface, and the PSA-UPF-2 sends the uplink packet to a certain edge server in the MEC through the N6 interface according to the destination address of the uplink packet, and the edge server can process the uplink packet.

In the embodiment of fig. 7, based on the above-defined splitting manner of U L C L, when a PDU session with U L C L function is established, the SMF will simultaneously trigger the establishment of a side cloud data transmission tunnel through the N4 session, where the side cloud data transmission tunnel is from PSA-UPF-2 connected to an edge server of the MEC to I-UPF, and then to PSA-UPF-1 connected to a central server deployed in the DN.

The following function enhancement can be performed through the edge cloud data transmission tunnel:

first, whether the upstream data packet processed by the edge server needs to be sent to the central server deployed in the DN for further processing is determined by the edge server deployed in the MEC. The destination address of the uplink data packet sent by the UE is the network address of the edge server deployed in the MEC. If the edge server finishes processing the uplink data packet of the UE and generates a first data packet that does not need to be continuously processed by the central server deployed in the DN, the edge server directly sends the first data packet generated after processing the uplink data packet (at this time, the first data packet is a downlink data packet) to the UE. If the edge server deployed in the MEC processes the first packet generated after completion and needs to continue to be processed by the central server deployed in the DN, the edge server deployed in the MEC sets the destination address of the first packet generated after processing to the network address of the central server deployed in the DN.

Second, when the PSA-UPF-2 receives the first packet from the edge server deployed in the MEC through the N6 interface, it determines whether the first packet is addressed to a certain UE according to the destination address of the first packet. If the destination address of the first packet is not the same as the IP address of any UE pre-stored in the PSA-UPF-2 and the source address of the first packet is the IP address of a certain UE, the first packet is considered to be the one identified by the source address and to be sent to the PSA UPF-1 connected to the DN and to be sent by the PSA UPF-1 to the central server deployed in the DN. PSA UPF-2 will forward the first packet as an upstream packet through the edge cloud data transport tunnel.

Third, PSA UPF-2 will mark the first packet as an upstream packet and encapsulate it with CN Tunnel Info of the edge cloud data transmission Tunnel, set the TEID value to the TEID value of the I-UPF in the edge cloud data transmission Tunnel corresponding to the edge cloud data transmission Tunnel, i.e. CN Tunnel Info of the I-UPF provided to PSA UPF-2 by SMF, and PSA UPF-2 will send the first packet to the I-UPF through the edge cloud data transmission Tunnel via an N9 interface.

Fourthly, after the I-UPF receives the first data packet, the CN Tunnel Info of the first data packet is detected, if the CN Tunnel Info corresponds to the CN Tunnel Info of the I-UPF of the edge cloud data transmission Tunnel, the I-UPF may determine that the first packet needs to be sent to the central server through the edge cloud data transmission Tunnel, at this time, the I-UPF continues to encapsulate the first packet with CN Tunnel Info of PSA UPF-1 corresponding to the edge cloud data transmission Tunnel, sets the TEID value as the TEID value of PSA UPF-1 in the edge cloud data transmission Tunnel corresponding to the edge cloud data transmission Tunnel, namely, the SMF provides CN Tunnel Info of PSA UPF-1 of I-UPF when establishing the cloud data transmission Tunnel, the I-UPF will then further send the first packet to the psauff-1 through the edge cloud data transmission tunnel via another N9 interface. PSA UPF-1 will send the first packet to the central server corresponding to the destination address of the first packet disposed in the DN via the N6 interface.

The following describes a multipoint processing procedure of an uplink data packet with reference to the edge cloud data transmission tunnel shown in the embodiment of fig. 7. As shown in fig. 8, in the embodiment of the present disclosure, the step S420 may further include the following steps.

In step S421, the first data packet is sent to the session anchor user plane function of the second pdu through the edge server.

In step S422, the session anchor user plane function of the second pdu encapsulates the first data packet according to the CN Tunnel Info of the middle user plane function of the corresponding edge cloud data transmission Tunnel, and sends the first data packet to the middle user plane function.

Specifically, after receiving the first data packet from the edge server, the PSA UPF-2 may first determine whether the first data packet needs to be forwarded through the edge cloud data transmission tunnel, and if the destination address of the first data packet is the same as the IP address of a certain UE stored on the PSA UPF-2, it indicates that the first data packet does not need to be forwarded through the edge cloud data transmission tunnel; if the destination address of the first data packet is different from the IP address of each UE stored in the PSA UPF-2, it is determined that the first data packet is an uplink data packet that needs to be forwarded to the central server through the edge cloud data transmission Tunnel, and it may be determined which UE's edge cloud data transmission Tunnel corresponds to the source address of the first data packet according to the source address of the first data packet, at this time, the first data packet may be encapsulated according to the CN Tunnel Info of the I-UPF corresponding to the edge cloud data transmission Tunnel, and the first data packet of the first user terminal is sent to the middle user plane function.

In step S423, the middle user plane function encapsulates the first data packet according to the CN Tunnel Info of the PSA UPF-1 of the corresponding edge cloud data transmission Tunnel, and sends the first data packet of the first user terminal to the session anchor user plane function of the first protocol data unit.

Specifically, after the I-UPF receives the first data packet from the PSA UPF-2, the intermediate user plane function determines, according to the CN Tunnel Info of the first data packet, that the first data packet needs to be forwarded to the session anchor of the first protocol data unit through the edge cloud data transmission Tunnel, encapsulates the first data packet according to the CN Tunnel Info of the PSA UPF-1 corresponding to the edge cloud data transmission Tunnel, and sends the first data packet of the first user terminal to the session anchor of the first protocol data unit.

In step S424, the first pdu session anchor user plane function sends the uplink data packet of the first ue to the central server.

Fig. 9 schematically shows a flowchart of a service cooperation processing method according to an embodiment of the present disclosure. As shown in fig. 9, compared with the above embodiment, the method provided by the embodiment of the present disclosure may further include the following steps.

In step S910, after the central server processes the first data packet, a downlink data packet of the first user terminal is generated, and a destination address of the downlink data packet of the first user terminal is set as a network address of the first user terminal.

In this disclosure, the central server may further set the source address of the downlink data packet as the network address of the central server.

In step S920, the central server sends the downlink data packet of the first user equipment to the session anchor user plane function of the first pdu.

In step S930, the first pdu session anchor user plane function sends the downlink data packet of the first ue to the middle user plane function of the pdu session of the first ue.

In this disclosure, the first PDU session anchor point user plane function sends the downlink data packet of the first ue to the middle user plane function on the corresponding PDU session according to the data packet detection rule.

In step S940, the middle user plane function sends the downlink data packet of the first user terminal to the first user terminal.

In the embodiment of fig. 9, the central server in the DN processes the uplink data packet to generate a downlink data packet, and the downlink data packet is directly returned to the first UE through the PSA-UPF-1 and the I-UPF.

Fig. 10 schematically shows a business flow diagram of a business coprocessing method according to an embodiment of the disclosure.

As shown in fig. 10, the process of sending the uplink data packet and the downlink data packet is described with reference to the edge cloud data transmission tunnel shown in fig. 7, and may include the following steps.

Step 1, inserting the SMF into the I-UPF supporting U L C L function in the PDU session establishment flow initiated by the UE or the PDU session modification flow initiated by the SMF, wherein the function realizes the shunting of a specific data packet to PSA UPF-2 and further sends the data packet to a local data network.

And 2, triggering by the SMF to establish a side cloud data transmission tunnel, wherein the side cloud data transmission tunnel is established on PSA UPF-1, I-UPF and PSA UPF-2.

And step 3, sending the uplink data packet with the destination address of the network address of the edge server deployed in the MEC to the I-UPF through the gNB.

And 4, after receiving the uplink data packet, the I-UPF sends the uplink data packet to the PSA-UPF-2 according to the flow distribution rule configured by the SMF and used for realizing the U L C L function.

And step 5, after receiving the uplink data packet, the PSA-UPF-2 sends the uplink data packet to an edge server in the local DN.

And 6, after the edge server in the local DN processes the uplink data packet, generating a first data packet, and determining whether the first data packet generated by processing the uplink data packet needs to be sent to a central server in the DN. If the first data packet does not need to be sent to the central server for processing, the destination address of the first data packet is set as the network address of the first UE, and the first data packet can be directly sent to the first UE as a downlink data packet through I-UPF; and if the first data packet needs to be sent to the central server in the DN for continuous processing, setting the destination address of the first data packet as the network address of the central server in the DN, and sending the first data packet to the PSA-UPF-2.

Step 7, the edge server sends the first data packet to the PSA UPF-2. Assuming that the first packet needs to be sent to the central server in the DN for further processing, the edge server in the local DN forwards the first packet addressed to the network address of the central server to PSA UPF-2, and sets the source address of the first packet to the network address of the first UE.

And step 8, when the PSA UPF-2 receives the first data packet from the edge server, judging whether the first data packet is sent to a certain UE according to the destination address of the first data packet. If the destination address of the first data packet is different from the IP address of any UE on the PSA UPF-2, the first data packet is not considered to be a downlink data packet sent to the UE, whether the downlink data packet is associated with the edge cloud data transmission Tunnel of the UE is judged according to the source address of the first data packet, the first data packet is set as an uplink data packet of the first UE identified by the source address of the first data packet, and the first data packet is encapsulated according to CN Tunnel Info of the I-UPF of the corresponding edge cloud data transmission Tunnel of the first UE. The PSA-UPF-2 forwards the first data packet to the I-UPF through the edge cloud data transmission Tunnel, the I-UPF judges that the first data packet needs to be forwarded through the edge cloud data transmission Tunnel according to CN Tunnel Info of the first data packet, packages the first data packet according to CN Tunnel Info of PSA UPF-1 of the edge cloud data transmission Tunnel, sends the first data packet to the PSA-UPF-1 through the edge cloud data transmission Tunnel of the first UE, and the PSA-UPF-1 sends the first data packet to a central server in the DN.

And 9, the central server continues to process the first data packet to generate a downlink data packet of the first UE.

Step 10, the central server in the DN sets the destination address of the downlink data packet of the first UE as the network address of the first UE and sends the network address to the PSA-UPF-1, when the PSA-UPF-1 receives the downlink data packet, the downlink data packet is sent to the I-UPF through the PDU session of the first UE, and the I-UPF sends the downlink data packet to the UE.

In the above embodiments, the edge cloud data transmission tunnels established on the PSA UPF-1, I-UPF and PSA UPF-2 are all taken as examples for illustration. A side cloud data transmission tunnel may be established by the I-UPF without establishing a direct additional connection between the PSA UPF-1 and the PSA UPF-2.

In other embodiments, the edge cloud data transmission tunnels may also be established directly on PSA UPF-1 and PSA UPF-2. That is, the SMF can determine whether the edge cloud data transmission tunnel needs to pass through the I-UPF as required, and if the edge cloud data transmission tunnel can be established between the PSA UPF-1 and the PSA aupf-2, the edge cloud data transmission tunnel can be established directly between the PSA UPF-1 and the PSA UPF-2 without passing through the I-UPF. At the moment, the edge cloud data transmission tunnel does not need to pass through the I-UPF, data transmission is faster and more timely, and the realization is simpler.

In an example embodiment, the edge cloud data transmission tunnel may be adapted to a plurality of user terminals establishing a protocol data unit session to the first protocol data unit session anchor user plane function and the second protocol data unit session anchor user plane function, and the plurality of user terminals may include the first user terminal.

When the edge cloud data transmission tunnel is established on PSA UPF-1 and PSA UPF-2, triggering establishment of the edge cloud data transmission tunnel by using the session management function may include: and sending the core network tunnel information of the session anchor point user plane function of the first protocol data unit to the session anchor point user plane function of the second protocol data unit through the session management function. That is, the SMF provides the CN Tunnel Info of PSA UPF-1 corresponding to the edge cloud data transmission Tunnel to PSAUPF-2.

FIG. 11 schematically illustrates an architecture diagram supporting edge cloud coordination according to an embodiment of the present disclosure.

As shown in fig. 11, the difference from the above-mentioned embodiment of fig. 7 is that when the SMF establishes the side cloud data transmission tunnel through the N4 session trigger, the core network tunnel information and the packet detection rule of the PSA-UPF-1 corresponding to the side cloud data transmission tunnel are sent to the PSA-UPF-2, that is, the side cloud data transmission tunnel is established directly on the PSA-UPF-1 and the PSA-UPF-2 without passing through the I-UPF.

Fig. 12 is a schematic diagram illustrating a processing procedure of step S420 illustrated in fig. 4 in an embodiment. As shown in fig. 12, in the embodiment of the present disclosure, the step S420 may further include the following steps.

In step S425, the first packet is sent to the session anchor user plane function of the second pdu by the edge server.

Here, the destination address of the first packet is set as the network address of the central server, and the source address of the first packet is set as the network address of the first UE.

In step S426, the second pdu session anchor user plane function encapsulates the first data packet according to the CN Tunnel Info of the first pdu session anchor user plane function of the corresponding edge cloud data transmission Tunnel, and sends the first data packet to the first pdu session anchor user plane function.

Specifically, the PSA UPF-2 determines whether a destination address of the first packet is consistent with a network address of a certain UE, and if the destination address of the first packet is not the same as the network address of any UE, the first packet is considered to be sent to the central server, and the CN Tunnel Info corresponding to the PSA UPF-1 of the edge cloud data transmission Tunnel is used to encapsulate the first packet, and the first packet is set as an uplink packet, and the first packet is sent to the PSA UPF-1.

In step S427, the first pdu session anchor user plane function sends the first packet to the central server.

In the embodiment of fig. 12, the edge cloud data transmission tunnel is directly established on PSA UPF-1 and PSA UPF-2, so that after the PSA UPF-2 receives a first data packet of the first UE generated after processing the uplink data packet sent by the edge server, the first data packet is directly forwarded to PSA UPF-1, and the PSA UPF-1 is then forwarded to the central server in the DN, which is simpler and more convenient to implement.

Fig. 13 schematically shows a business flow diagram of a business coprocessing method according to an embodiment of the disclosure. As shown in fig. 13, step 1 is similar to step 1 in the embodiment of fig. 10 described above.

And step 2, respectively connecting the SMF to the PSA UPF-1, the I-UPF and the PSA UPF-2 through three N4 sessions to trigger the establishment of a side cloud data transmission tunnel, wherein the side cloud data transmission tunnel is established on the PSA UPF-1 and the PSA UPF-2.

And 6, after the edge server in the local DN processes the uplink data packet, generating a first data packet, and determining whether the first data packet needs to be sent to a central server in the DN. If the first data packet does not need to be sent to the central server for processing, the destination address of the first data packet is configured to be the network address of the first UE, and the first data packet can be directly sent to the first UE as a downlink data packet through I-UPF; and if the first data packet needs to be sent to the central server in the DN for continuous processing, setting the destination address of the first data packet as the network address of the central server in the DN, and forwarding the first data packet to the PSA-UPF-2.

And 7, assuming that the first data packet needs to be sent to a central server in the DN for continuous processing, the edge server in the local DN forwards the first data packet with the destination address as the network address of the central server to the PSA UPF-2, and the source address of the first data packet is set as the network address of the first UE.

And step 8, when the PSA UPF-2 receives the first data packet from the edge server, judging whether the first data packet is sent to a certain UE according to the destination address of the first data packet. If the destination address of the first data packet is different from the IP address of any UE on the PSA UPF-2, the first data packet is considered to be forwarded through the edge cloud data transmission Tunnel, then the uplink data packet of which UE is judged according to the source address of the first data packet, the first data packet is set as the uplink data packet of the first UE identified by the source address of the first data packet, and the uplink first data packet is encapsulated according to the CN Tunnel Info of the edge cloud data transmission Tunnel of the PSAUPF-1 received on the PSA UPF-2. The PSA-UPF-2 forwards the first data packet to the PSA-UPF-1 through the edge cloud data transmission tunnel, and the PSA-UPF-1 sends the first data packet to the central server in the DN.

And 9, continuously processing the first data packet by the central server to generate a downlink data packet.

And step 10, after the central server in the DN processes the first data packet, generating a downlink data packet, setting a destination address of the downlink data packet as a network address of the first UE, sending the downlink data packet to PSA-UPF-1 by the central server in the DN, and sending the downlink data packet to I-UPF through PDU session of the first UE when the PSA-UPF-1 receives the downlink data packet, and sending the downlink data packet to the UE by the I-UPF.

Fig. 14 schematically shows a block diagram of a service cooperative processing apparatus according to an embodiment of the present disclosure. As shown in fig. 14, a service cooperation processing apparatus 1700 provided in the embodiment of the present disclosure may include: an upstream packet receiving unit 1710 and an upstream packet processing unit 1720.

The uplink packet receiving unit 1710 may be configured to receive an uplink packet from a first user terminal by using an edge server, where a source address and a destination address of the uplink packet of the first user terminal are a network address of the first user terminal and a network address of the edge server, respectively. The uplink packet processing unit 1720 may be configured to generate a first packet after the uplink packet is processed by the edge server, and set a destination address of the first packet as a network address of a central server, so that the first packet is sent to the central server through a side cloud data transmission tunnel according to the network address of the central server, and the central server continues to process the first packet.

The edge cloud data transmission tunnel is established on a first protocol data unit session anchor point user plane function and a second protocol data unit session anchor point user plane function, the first protocol data unit session anchor point user plane function is connected with the central server, and the second protocol data unit session anchor point user plane function is connected with the edge server.

In an exemplary embodiment, the service cooperative processing apparatus 1700 may further include: a tunnel trigger establishing unit, configured to utilize a session management function to trigger establishment of the cloud-edge data transmission tunnel when a session connection of a protocol data unit including an intermediate user plane function supporting an uplink classifier function is established at the first user terminal, or when a protocol data unit session of the first user terminal is established, an intermediate user plane function supporting an uplink classifier function is inserted into a data path of the protocol data unit session of the first user terminal, or when the first user terminal triggers establishment of a quality of service flow on an existing protocol data unit session including an intermediate user plane function supporting the uplink classifier function.

In an exemplary embodiment, the tunnel trigger setup unit may include: a first tunnel information sending unit, configured to send, by using the session management function, the core network tunnel information of the intermediate user plane function to the session anchor point user plane function of the second pdu; a second tunnel information sending unit, configured to send, by the session management function, the core network tunnel information of the session anchor user plane function of the first pdu to the intermediate user plane function.

In an exemplary embodiment, the uplink packet processing unit 1720 may include: a first uplink data packet sending unit, configured to send the first data packet to the session anchor point user plane function of the second protocol data unit through the edge server; a second uplink data packet sending unit, configured to encapsulate the first data packet by the session anchor user plane function of the second protocol data unit according to core network tunnel information of the middle user plane function corresponding to the edge cloud data transmission tunnel, and send the first data packet to the middle user plane function; a third uplink data packet sending unit, configured to encapsulate, by the intermediate user plane function, the first data packet according to core network tunnel information of a session anchor user plane function of the first protocol data unit corresponding to the edge cloud data transmission tunnel, and send the first data packet to the session anchor user plane function of the first protocol data unit; a fourth uplink data packet sending unit, configured to send the first data packet to the central server by using the session anchor user plane function of the first pdu.

In an example embodiment, the edge cloud data transmission tunnel may be adapted to establish a plurality of user terminals of a protocol data unit session to the first protocol data unit session anchor user plane function and the second protocol data unit session anchor user plane function, the plurality of user terminals including the first user terminal. Wherein, the tunnel trigger establishing unit may include: a third tunneling information sending unit, configured to send, by the session management function, the core network tunneling information of the session anchor user plane function of the first pdu to the session anchor user plane function of the second pdu.

In an exemplary embodiment, the uplink packet processing unit 1720 may include: a fifth uplink data packet sending unit, configured to send the first data packet to the session anchor point user plane function of the second pdu through the edge server; a sixth uplink data packet sending unit, configured to encapsulate the first data packet by the session anchor user plane function of the second protocol data unit according to core network tunnel information of the session anchor user plane function of the first protocol data unit corresponding to the edge cloud data transmission tunnel, and send the first data packet to the session anchor user plane function of the first protocol data unit; a seventh uplink data packet sending unit, configured to send the first data packet to the central server by using the session anchor user plane function of the first pdu.

In an exemplary embodiment, the service cooperative processing apparatus 1700 may further include: a first downlink data packet generating unit, configured to generate a downlink data packet of the first user terminal after the central server processes the first data packet, and set a destination address of the downlink data packet of the first user terminal as a network address of the first user terminal; a first downlink data packet forwarding unit, configured to send the downlink data packet of the first user equipment to the session anchor point user plane function of the first protocol data unit by the central server; a second downlink data packet forwarding unit, configured to send the downlink data packet of the first user terminal to an intermediate user plane function of the protocol data unit session of the first user terminal by using the first protocol data unit session anchor user plane function; a third downlink packet forwarding unit, configured to send the downlink packet of the first user equipment to the first user equipment by the middle user plane function.

The specific implementation of each unit in the service cooperative processing apparatus provided in the embodiment of the present disclosure may refer to the content in the service cooperative processing method, and is not described herein again.

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

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, 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 (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a touch terminal, or a network device, etc.) to execute 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 variations, 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 and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A service cooperative processing method is characterized by comprising the following steps:

utilizing an edge server to receive an uplink data packet from a first user terminal, wherein a source address and a destination address of the uplink data packet are respectively a network address of the first user terminal and a network address of the edge server;

processing the uplink data packet through the edge server to generate a first data packet, and setting a destination address of the first data packet as a network address of a central server, so that the first data packet is sent to the central server through a side cloud data transmission tunnel according to the network address of the central server, and the central server continues to process the first data packet;

2. The business coprocessing method of claim 1, further comprising:

when a session management function is used for establishing a protocol data unit session connection containing an intermediate user plane function supporting an uplink classifier function at the first user terminal, or after the protocol data unit session of the first user terminal is established, when the intermediate user plane function supporting the uplink classifier function is inserted into a data path of the protocol data unit session of the first user terminal, or when the first user terminal triggers the establishment of a quality of service flow on the existing protocol data unit session containing the intermediate user plane function supporting the uplink classifier function, the session management function is used for triggering the establishment of the edge cloud data transmission tunnel.

3. The method according to claim 2, wherein the triggering establishment of the edge cloud data transmission tunnel by using the session management function includes:

sending the core network tunnel information of the middle user plane function to the session anchor point user plane function of the second protocol data unit through the session management function;

and sending the core network tunnel information of the session anchor point user plane function of the first protocol data unit to the intermediate user plane function through the session management function.

4. The method according to claim 3, wherein the generating a first data packet after the processing of the uplink data packet by the edge server, and setting a destination address of the first data packet as a network address of a central server, so as to send the first data packet to the central server through a side cloud data transmission tunnel according to the network address of the central server, includes:

sending the first data packet to the session anchor point user plane function of the second protocol data unit through the edge server;

the second protocol data unit session anchor user plane function encapsulates the first data packet according to core network tunnel information of the middle user plane function corresponding to the edge cloud data transmission tunnel, and sends the first data packet to the middle user plane function;

the middle user plane function encapsulates the first data packet according to core network tunnel information of the first protocol data unit session anchor user plane function corresponding to the edge cloud data transmission tunnel, and sends the first data packet to the first protocol data unit session anchor user plane function;

and the first data packet is sent to the central server by the session anchor user plane function of the first protocol data unit.

5. The business coprocessing method of claim 2, wherein said edge cloud data transmission tunnel is adapted to establish a plurality of user terminals of a protocol data unit session to said first protocol data unit session anchor user plane function and said second protocol data unit session anchor user plane function, said plurality of user terminals including said first user terminal; the triggering and establishing of the edge cloud data transmission tunnel by using the session management function comprises the following steps:

and sending the core network tunnel information of the session anchor point user plane function of the first protocol data unit to the session anchor point user plane function of the second protocol data unit through the session management function.

6. The method according to claim 5, wherein the generating a first data packet after the processing of the uplink data packet by the edge server, and setting a destination address of the first data packet as a network address of a central server, so as to send the first data packet to the central server through a side cloud data transmission tunnel according to the network address of the central server, includes:

the second protocol data unit session anchor user plane function encapsulates the first data packet according to core network tunnel information of the first protocol data unit session anchor user plane function corresponding to the edge cloud data transmission tunnel, and sends the first data packet to the first protocol data unit session anchor user plane function;

7. The business coprocessing method according to any one of claims 1 to 6, further comprising:

after the central server processes the first data packet, generating a downlink data packet of the first user terminal, and setting a destination address of the downlink data packet of the first user terminal as a network address of the first user terminal;

the central server sends the downlink data packet of the first user terminal to the session anchor point user plane function of the first protocol data unit;

the first protocol data unit session anchor user plane function sends the downlink data packet of the first user terminal to the intermediate user plane function of the protocol data unit session of the first user terminal;

and the intermediate user plane function sends the downlink data packet of the first user terminal to the first user terminal.

8. A service cooperation processing apparatus, comprising:

an uplink data packet receiving unit, configured to receive an uplink data packet from a first user terminal by using an edge server, where a source address and a destination address of the uplink data packet are a network address of the first user terminal and a network address of the edge server, respectively;

the uplink data packet processing unit is used for generating a first data packet after processing the uplink data packet through the edge server, and setting a destination address of the first data packet as a network address of a central server, so that the first data packet is sent to the central server through a side cloud data transmission tunnel according to the network address of the central server, and the central server continues to process the first data packet;

9. An electronic device, comprising:

one or more processors;

a storage device configured to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the business coprocessing method of any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the service co-processing method according to any one of claims 1 to 7.