CN116801372A

CN116801372A - Data transmission method, system and device of virtual network group and electronic equipment

Info

Publication number: CN116801372A
Application number: CN202210247288.7A
Authority: CN
Inventors: 李文苡; 陈洁; 谢沛荣; 李思含; 程淑荣
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2023-09-22

Abstract

The disclosure relates to a data transmission method, system, device and electronic equipment of a virtual network group, and relates to the technical field of communication. The transmission method comprises the following steps: under the condition that a first UE establishes a session, a first SMF entity corresponding to the first UE determines a group management and control function module of a VN group corresponding to the relevant information according to the relevant information of the session; the first SMF entity registers the session to the group management and control function module; the group management and control function module is used for transmitting the registration information of the second UE in the VN group to the first SMF entity; and the first SMF entity transmits a forwarding strategy of the VN group to a second SMF entity corresponding to the second UE according to the registration information, wherein the forwarding strategy is used for transmitting data across the SMF entities. According to the technical scheme, the data forwarding of VN group users crossing different SMFs can be achieved, and therefore communication performance is improved.

Description

Data transmission method, system and device of virtual network group and electronic equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method, a data transmission system, a data transmission device, an electronic device, and a non-volatile computer readable storage medium for a virtual network group.

Background

The 3GPP (3 rd Generation Partnership Project, third generation partnership project) R16 defines new characteristics of a 5G LAN (Local Area Network ). Operators provide 5G LAN services for local area networks in vertical industries such as industrial internet, business offices, and home environments.

Similar to local area network or VPN type services, clients can customize 5G LAN communication groups according to actual needs. Point-to-point or point-to-multipoint communications may be performed between UEs (User Equipment) and UEs within a group, including ethernet communications and IP (Internet Protocol, network protocol) communications.

In the related art, according to the 5G LAN standard of R16, R17, data transfer within a UPF (User plane Function ) or among UPFs of a VN (Virtual Network) group user under a single SMF (Session Management Function ) can be realized.

Disclosure of Invention

The inventors of the present disclosure found that the above-described related art has the following problems: data forwarding between different SMFs by VN group users cannot be achieved, resulting in reduced communication performance.

In view of this, the present disclosure proposes a data transmission technical solution of a virtual network group, which can implement data forwarding between VN group users across different SMFs, thereby improving communication performance.

According to some embodiments of the present disclosure, there is provided a data transmission method of a virtual network group, including: under the condition that a first UE establishes a session, a first SMF entity corresponding to the first UE determines a group management and control function module of a VN group corresponding to the relevant information according to the relevant information of the session; the first SMF entity registers the session to the group management and control function module; the group management and control function module is used for transmitting the registration information of the second UE in the VN group to the first SMF entity; and the first SMF entity transmits a forwarding strategy of the VN group to a second SMF entity corresponding to the second UE according to the registration information, wherein the forwarding strategy is used for transmitting data across the SMF entities.

In some embodiments, issuing the forwarding policy of the VN group to the second SMF entity corresponding to the second UE includes: the first SMF entity determines a second SMF entity corresponding to the second UE and address information of the second SMF entity according to the registration information of the second UE; and the first SMF entity transmits the generated forwarding strategy to the second SMF entity according to the address information of the second SMF entity.

In some embodiments, the relevant information includes identification information of a slice corresponding to the session and identification information of a data network, and issuing registration information of a second UE in the VN group to the first SMF entity includes: the group management and control function module determines a VN group according to the identification information of the slice and the identification information of the data network; and the group management and control function module acquires the registration information of the second UE in the VN group.

In some embodiments, the transmission method further comprises: the first SMF entity issues the forwarding strategy to the UPF entity controlled by the first SMF entity; and the second SMF entity issues the forwarding strategy to the UPF entity controlled by the second SMF entity.

In some embodiments, the group management function module for determining the virtual network VN group corresponding to the relevant information includes: a first SMF entity, configured to obtain subscription information of each VN group from UDM (Unified Data Management ) entities corresponding to each VN group; the first SMF entity determines the VN group corresponding to the relevant information according to the subscription information of each VN group and the relevant information of the session.

In some embodiments, the group management function module for determining the VN group corresponding to the relevant information includes: in the case that the session is a 5G LAN session, the first SMF entity transmits session related information to an NRF (Network Repository Function, network storage function) entity; and the first SMF entity receives the related information of the group management and control function module returned by the NRF entity according to the related information of the session.

According to other embodiments of the present disclosure, there is provided a data transmission method of a virtual network group, including: under the condition that the first UE establishes a session on a corresponding first SMF entity, the group management and control function module receives a session registration request sent by the first SMF entity; the group management and control function module registers the first UE to the VN group corresponding to the session registration request; the group management and control function module transmits the registration information of the second UE in the VN group to the first SMF entity, so that the first SMF entity transmits the forwarding strategy of the VN group to the second SMF entity corresponding to the second UE according to the registration information, and the forwarding strategy is used for transmitting data across the SMF entities.

According to still further embodiments of the present disclosure, there is provided a data transmission method of a virtual network group, including: under the condition that a first UE establishes a session, a first SMF entity corresponding to the first UE determines a group management and control function module of a VN group corresponding to the relevant information according to the relevant information of the session; the first SMF entity registers the session to the group management and control function module; and the first SMF entity transmits a forwarding strategy of the VN group to a second SMF entity corresponding to the second UE according to the registration information of the second UE in the VN group returned by the group management and control function module, wherein the forwarding strategy is used for transmitting data across the SMF entity.

According to still further embodiments of the present disclosure, there is provided a data transmission system of a virtual network group, including: the first SMF entity is used for determining a group management and control function module of the VN group corresponding to the relevant information according to the relevant information of the session under the condition that the first UE establishes the session, registering the session to the group management and control function module, and transmitting a forwarding strategy of the VN group to a second SMF entity corresponding to the second UE according to the registration information, wherein the forwarding strategy is used for performing data transmission across the SMF entities; and the group management and control function module is used for transmitting the registration information of the second UE in the VN group to the first SMF entity.

In some embodiments, the first SMF entity determines, according to the registration information of the second UE, a second SMF entity corresponding to the second UE, and address information of the second SMF entity, and issues the generated forwarding policy to the second SMF entity according to the address information of the second SMF entity.

In some embodiments, the related information includes identification information of a slice corresponding to the session and identification information of the data network; and the group management and control function module determines a VN group according to the identification information of the slice and the identification information of the data network, and acquires the registration information of the second UE in the VN group.

In some embodiments, the first SMF entity issues a forwarding policy to its controlling UPF entity; the transmission system further includes: and the second SMF entity is used for issuing the forwarding strategy to the UPF entity controlled by the second SMF entity.

In some embodiments, the first SMF entity obtains subscription information of each VN group from a UDM entity corresponding to each VN group, and determines a VN group corresponding to the relevant information according to the subscription information of each VN group and relevant information of a session.

In some embodiments, in the case that the session is a 5G LAN session, the first SMF entity sends related information of the session to the NRF entity, and receives related information of the group management and control function module returned by the NRF entity according to the related information of the session.

According to still further embodiments of the present disclosure, there is provided a data transmission apparatus of a virtual network group, the transmission apparatus being disposed in a group management and control function module, including: a receiving unit, configured to receive a session registration request sent by a first SMF entity when a first UE establishes a session on a corresponding first SMF entity; a registration unit, configured to register a first UE to a VN group corresponding to a session registration request; the sending unit is used for sending the registration information of the second UE in the VN group to the first SMF entity, so that the first SMF entity sends the forwarding strategy of the VN group to the second SMF entity corresponding to the second UE according to the registration information, and the forwarding strategy is used for performing data transmission across the SMF entities.

According to still further embodiments of the present disclosure, there is provided a data transmission apparatus of a virtual network group, where the transmission apparatus is disposed in a first SMF entity corresponding to a first UE, including: the determining unit is used for determining a group management and control function module of the VN group corresponding to the relevant information according to the relevant information of the session under the condition that the first UE establishes the session; a registration unit for registering the session to the group management and control function module; the sending unit is used for sending a forwarding strategy of the VN group to a second SMF entity corresponding to the second UE according to the registration information of the second UE in the VN group returned by the group management and control function module, wherein the forwarding strategy is used for transmitting data across the SMF entity.

According to still further embodiments of the present disclosure, there is provided an electronic device including: a memory; and a processor coupled to the memory, the processor configured to perform the data transmission method of the virtual network group in any of the embodiments described above based on instructions stored in the memory device.

According to still further embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the data transmission method of the virtual network group in any of the above embodiments.

In the above embodiment, the group management and control function module gathers the registration information of each UE in the VN group and issues the registration information to the SMF entity that establishes the session. In this way, the SMF entity can realize the data forwarding of different members of the same VN group across the SMF through the interaction with the group management and control function module, thereby improving the communication performance.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 illustrates a flow chart of some embodiments of a data transmission method of a virtual network group of the present disclosure;

fig. 2 illustrates a schematic diagram of some embodiments of a data transmission method of a virtual network group of the present disclosure;

fig. 3 illustrates a signaling diagram of some embodiments of a data transmission method of a virtual network group of the present disclosure;

FIG. 4a illustrates a flow chart of some embodiments of a method of group management and control function module side data transmission of the present disclosure;

fig. 4b illustrates a flow chart of some embodiments of a method of transmitting SMF side data of the present disclosure;

fig. 5a illustrates a block diagram of some embodiments of a data transmission system of a virtual network group of the present disclosure;

fig. 5b illustrates a block diagram of some embodiments of a data transmission apparatus of a virtual network group of the present disclosure;

fig. 5c shows a block diagram of further embodiments of a data transmission device of a virtual network group of the present disclosure;

FIG. 6 illustrates a block diagram of some embodiments of an electronic device of the present disclosure;

fig. 7 shows a block diagram of further embodiments of the electronic device of the present disclosure.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.

Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

As previously described, industry customers can sign up dynamically at UDM through AF (Application Function ), NEF (Network Exposure Function, network open function); alternatively, the operator signs up for 5G VNs statically at UDM according to customer requirements, including VN group identification, group members, group data slices, DNN (Data Network Name ), etc. When the UE establishes a session, subscription information is issued from the UDM to the SMF to generate forwarding rules of the UPF, so that a forwarding function that the data packet of the VN group does not leave the park is provided.

However, the above specifications can only implement data forwarding of the VN group user in the UPF or between UPFs under a single SMF, and cannot implement data forwarding of the VN group user across different SMFs.

Aiming at the problems, the disclosure provides a technical scheme for realizing the cross-SMF data forwarding of 5G LAN service VN group users. According to the technical scheme, sessions of all users of the VN group are established on different SMFs; through registering to a group management and control function (GMCF, group Management Control Function) module, the GMCF and the SMF interact the real-time UE session information and the SMF address of the VN group, thereby realizing the data forwarding control among different SMFs.

For example, the technical solution of the present disclosure may be implemented by the following embodiments.

Fig. 1 illustrates a flow chart of some embodiments of a data transmission method of a virtual network group of the present disclosure.

As shown in fig. 1, in step 110, in the case where the first UE establishes a session, the first SMF entity corresponding to the first UE determines, according to the relevant information of the session, a group management function module of the VN group corresponding to the relevant information.

In some embodiments, the first SMF entity obtains subscription information of each VN group from a UDM entity corresponding to each VN group; the first SMF entity determines the VN group corresponding to the relevant information according to the subscription information of each VN group and the relevant information of the session.

For example, for a VN group with group identification VN1, the subscription data of VN1 may be configured in different UDM entities. The subscription information of VN1 may include the group identity VN1 of VN1, group members UE1 to UE4, group data, etc. For example, the group data may include nsai 1, DNN1, type of PDU (Protocol Data Unit ), ethernet (Ethernet) related information, and the like.

In some embodiments, in the case that the session is a 5G LAN session, the first SMF entity sends session related information to the NRF entity; and the first SMF entity receives the related information of the group management and control function module returned by the NRF entity according to the related information of the session.

For example, after the PDU session is established, the SMF entity discovers the GMCF module of the corresponding VN group according to the nsai (Network Slice Selection Assistance Information ) and DNN of the slice, and registers the PDU session of the UE to the GMCF module.

In step 120, the first SMF entity registers the session with the group management function.

In some embodiments, the related information includes identification information of a slice corresponding to the session and identification information of the data network. The group management and control function module determines a VN group according to the identification information of the slice and the identification information of the data network; and the group management and control function module acquires the registration information of the second UE in the VN group.

In step 130, the group management and control function module issues registration information of the second UE in the VN group to the first SMF entity.

In some embodiments, the GMCF module aggregates registration information for all group members of the VN group bound to NSSAI and DNN of the slice described above.

In some embodiments, the GMCF module issues registration information of other group members of the VN group other than the first UE to the first SMF entity so that the first SMF entity obtains the group members and corresponding SMF addresses for establishing sessions on the other SMF (i.e. the second SMF) entity.

For example, after the first UE establishes a PDU session, the first SMF entity registers information of the PDU session to a corresponding VN group in the GMCF module; the GMCF module issues PDU session information for other UEs (second UEs) in the VN group to the first SMF entity.

In step 140, the first SMF entity issues, according to the registration information, a forwarding policy of the VN group to a second SMF entity corresponding to the second UE. The forwarding policy is used for data transmission across SMF entities.

In some embodiments, the first SMF entity determines, according to the registration information of the second UE, a second SMF entity corresponding to the second UE, and address information of the second SMF entity; and the first SMF entity transmits the generated forwarding strategy to the second SMF entity according to the address information of the second SMF entity.

In some embodiments, the first SMF entity issues a forwarding policy to its controlling UPF entity; and the second SMF entity issues the forwarding strategy to the UPF entity controlled by the second SMF entity.

For example, the first SMF entity generates a group-level forwarding policy, and forwards the group-level forwarding policy to other SMF entities through interfaces between the SMF entities according to the SMF address obtained above; after updating the forwarding policy by other SMF entities, the forwarding policy is issued to the UPF entity controlled by the SMF entity, so that an N19 tunnel can be established between UPF entities crossing the SMF entities for forwarding data.

For example, the N19 interface between the UPF2 corresponding to the UE3 and the UPF3 corresponding to the UE4 may complete the cross-SMF forwarding of the data packet between the UE3 and the UE 4; the N19 interface between the UPF3 corresponding to the UE4 and the UPF4 corresponding to the UE5 can complete the inter-SMF forwarding of the data packet between the UE4 and the UE 5.

Fig. 2 illustrates a schematic diagram of some embodiments of a data transmission method of a virtual network group of the present disclosure.

As shown in fig. 2, the data forwarding for a VN group subscribed to one UDM and for which PDU sessions of all group members are under the control of one SMF may comprise the following steps.

In step 1, each UDM entity dynamically or statically configures subscription data of VN 1.

In step 2, UE1, UE2 and UE3 respectively establish PDU session, SMF1 respectively obtains subscription information from UDM1, and determines that all three UEs belong to a VN group, and generates a forwarding rule of the 5G LAN and sends the forwarding rule to UPF1 and UPF2.

In step 3, UPF1 may complete local forwarding of the data packet between UE1 and UE2 (data forwarding process indicated by dashed line 21); the N19 interface between UPF1 and UPF2 may complete the forwarding of data packets between UE1 and UE3 (data forwarding process indicated by dashed line 22).

In some embodiments, the VN group includes group members UE1 to UE5, UE1, UE2 correspond to UPF1 and SMF1, UE3 corresponds to UPF2 and SMF1, UE4 corresponds to UPF3 and SMF2, and UE5 corresponds to UPF4 and SMF3.

The group management and control function module can be used for summarizing and managing the PDU session information related to the 5G LAN of each VN group member, so as to realize the trans-SMF data forwarding. For example, this can be achieved by the following steps.

In step 1', for a VN group with group identification VN1, the subscription data of VN1 may be configured in different UDM entities.

For example, subscription information is configured in each of UDM1 and UDM 2. The subscription information of VN1 may include group identification VN1 of VN1, group members UE1 to UE4, etc., group data. The group data may include NSSAI1, DNN1, type of PDU, ethernet related information, etc.

In step 2', after any UE (first UE) establishes a PDU session, its corresponding SMF entity registers the information of the PDU session to a corresponding VN group in the GMCF module; the GMCF module transmits PDU session information of other UE (second UE) in the VN group to SMF entity corresponding to any UE.

In step 3', the N19 interface between the UPF2 corresponding to the UE3 and the UPF3 corresponding to the UE4 may complete the cross-SMF forwarding (the cross-SMF forwarding process indicated by the dashed line 23) of the data packet between the UE3 and the UE 4; the N19 interface between UPF3 corresponding to UE4 and UPF4 corresponding to UE5 may complete the cross-SMF forwarding of packets between UE4 and UE5 (the cross-SMF forwarding process between different UDMs indicated by dashed line 24).

Fig. 3 illustrates a signaling diagram of some embodiments of a data transmission method of a virtual network group of the present disclosure.

As shown in fig. 3, after the PDU session of one UE is established, the registration procedure with the management and control function module is taken as an example, and the registration procedures of other UEs are similar to the example. The PDU session information registered by the SMF entity with the GMCF module, and the PDU session information summarized by the GMCF module may include UE identity, SMF address, PDU session type, nsai, DNN, etc.

In event 310, the UE completes the establishment procedure of the PDU session.

In event 320, the SMF entity determines that the PDU session is a 5G LAN session, and discovers a corresponding GMCF module through the NRF entity according to NSSAI and DNN.

In event 330, the NRF entity discovers the registered corresponding GMCF module according to nsai and DNN, and returns its related information to the SMF entity.

In event 340, the SMF entity registers PDU session information for the UE with the GMCF module.

In event 350, the GMCF module registers PDU session information (registration information) for the UE into the same VN group according to nsai and DNN.

In event 360, the GMCF module sends PDU session information (registration information) of other UEs in the VN group that have been registered to the SMF entity.

In event 370, the SMF entity generates a forwarding policy for the VN group and issues to the corresponding UPF entity and SMF entities of other UEs.

Fig. 4a illustrates a flow chart of some embodiments of a method of group management and control function module side data transmission of the present disclosure.

As shown in fig. 4a, in step 410a, in the case that the first UE establishes a session on its corresponding first SMF entity, the group management function module receives a session registration request sent by the first SMF entity.

In step 420a, the group management and control function module registers the first UE to the VN group corresponding to the session registration request.

In step 430a, the group management and control function module issues registration information of the second UE in the VN group to the first SMF entity, so that the first SMF entity issues a forwarding policy of the VN group to the second SMF entity corresponding to the second UE according to the registration information, where the forwarding policy is used for data transmission across the SMF entities.

Fig. 4b illustrates a flow chart of some embodiments of a method of transmitting SMF side data of the present disclosure.

As shown in fig. 4b, in step 410b, in the case where the first UE establishes a session, the first SMF entity corresponding to the first UE determines, according to the relevant information of the session, a group management and control function module of the VN group corresponding to the relevant information.

In step 420b, the first SMF entity registers the session with the group management function.

In step 430b, the first SMF entity issues a forwarding policy of the VN group to a second SMF entity corresponding to the second UE according to the registration information of the second UE in the VN group returned by the group management and control function module, where the forwarding policy is used for performing data transmission across the SMF entities.

Fig. 5a illustrates a block diagram of some embodiments of a data transmission system of a virtual network group of the present disclosure.

As shown in fig. 5a, the data transmission system 5a of the virtual network group includes: the first SMF entity 51a is configured to determine, when the first UE establishes a session, a group management and control function module of a VN group corresponding to the relevant information according to the relevant information of the session, register the session to the group management and control function module, and issue, according to the registration information, a forwarding policy of the VN group to a second SMF entity corresponding to the second UE, where the forwarding policy is used to perform data transmission across the SMF entities; the group management and control function module 52a is configured to send the registration information of the second UE in the VN group to the first SMF entity.

In some embodiments, the first SMF entity 51a determines, according to the registration information of the second UE, the second SMF entity 53a corresponding to the second UE, and address information of the second SMF entity 53a, and issues the generated forwarding policy to the second SMF entity 53a according to the address information of the second SMF entity 53a.

In some embodiments, the related information includes identification information of a slice corresponding to the session and identification information of the data network; the group management and control function module 52a determines a VN group according to the identification information of the slice and the identification information of the data network, and obtains registration information of the second UE in the VN group.

In some embodiments, the first SMF entity 51a issues a forwarding policy to its controlling UPF entity; the transmission system 5a further includes: a second SMF entity 52a for issuing forwarding policies to its controlling UPF entity.

In some embodiments, the first SMF entity 51a obtains subscription information of each VN group from the UDM entity corresponding to each VN group, and determines the VN group corresponding to the relevant information according to the subscription information of each VN group and the relevant information of the session.

In some embodiments, in the case that the session is a 5G LAN session, the first SMF entity 51a sends related information of the session to the NRF entity, and receives related information of the group management and control function module returned by the NRF entity according to the related information of the session.

Fig. 5b illustrates a block diagram of some embodiments of a data transmission apparatus of a virtual network group of the present disclosure.

As shown in fig. 5b, the data transmission device 5b of the virtual network group is disposed in a group management and control function module, and includes: a receiving unit 51b, configured to receive a session registration request sent by a first SMF entity in a case where the first UE establishes a session on a corresponding first SMF entity; a registration unit 52b for registering the first UE to the VN group corresponding to the session registration request; the sending unit 53b is configured to send the registration information of the second UE in the VN group to the first SMF entity, so that the first SMF entity sends, according to the registration information, a forwarding policy of the VN group to the second SMF entity corresponding to the second UE, where the forwarding policy is used to perform data transmission across the SMF entities.

Fig. 5c shows a block diagram of further embodiments of a data transmission device of a virtual network group of the present disclosure.

As shown in fig. 5c, the data transmission device 5c of the virtual network group is disposed in a first SMF entity corresponding to the first UE, and includes: a determining unit 51c, configured to determine, according to related information of a session, a group management and control function module of a VN group corresponding to the related information when the first UE establishes the session; a registration unit 52c for registering the session with the group management and control function module; the sending unit 53c is configured to issue a forwarding policy of the VN group to a second SMF entity corresponding to the second UE according to the registration information of the second UE in the VN group returned by the group management and control function module, where the forwarding policy is used to perform data transmission across the SMF entities.

Fig. 6 illustrates a block diagram of some embodiments of an electronic device of the present disclosure.

As shown in fig. 6, the electronic device 6 of this embodiment includes: a memory 61 and a processor 62 coupled to the memory 61, the processor 62 being configured to perform the data transmission method of the virtual network group in any one of the embodiments of the present disclosure based on instructions stored in the memory 61.

The memory 61 may include, for example, a system memory, a fixed nonvolatile storage medium, and the like. The system memory stores, for example, an operating system, application programs, boot Loader, database, and other programs.

As shown in fig. 7, the electronic device 7 of this embodiment includes: a memory 710 and a processor 720 coupled to the memory 710, the processor 720 being configured to perform the data transmission method of the virtual network group in any of the foregoing embodiments based on instructions stored in the memory 710.

Memory 710 may include, for example, system memory, fixed nonvolatile storage media, and the like. The system memory stores, for example, an operating system, application programs, boot Loader, and other programs.

The electronic device 7 may also include an input-output interface 730, a network interface 740, a storage interface 750, and so forth. These interfaces 730, 740, 750, and memory 710 and processor 720 may be connected by, for example, a bus 760. The input/output interface 730 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, a touch screen, a microphone, and a speaker. Network interface 740 provides a connection interface for various networking devices. Storage interface 750 provides a connection interface for external storage devices such as SD cards, U-discs, and the like.

It will be appreciated by those skilled in the art that embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media including, but not limited to, disk storage, CD-ROM, optical storage, and the like, having computer-usable program code embodied therein.

Heretofore, a data transmission method, a data transmission system, a data transmission apparatus, an electronic device, and a nonvolatile computer-readable storage medium of a virtual network group according to the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

The methods and systems of the present disclosure may be implemented in a number of ways. For example, the methods and systems of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, firmware. The above-described sequence of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the sequence specifically described above unless specifically stated otherwise. Furthermore, in some embodiments, the present disclosure may also be implemented as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present disclosure. Thus, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A data transmission method for a virtual network group, comprising:

under the condition that a first User Equipment (UE) establishes a session, a first Session Management Function (SMF) entity corresponding to the first UE determines a group management function module of a Virtual Network (VN) group corresponding to relevant information according to the relevant information of the session;

a first SMF entity registers the session to the group management and control function module;

the group management and control function module issues registration information of a second UE in the VN group to the first SMF entity;

and the first SMF entity issues the forwarding strategy of the VN group to a second SMF entity corresponding to the second UE according to the registration information, wherein the forwarding strategy is used for performing data transmission across the SMF entities.

2. The data transmission method according to claim 1, wherein the issuing the forwarding policy of the VN group to the second SMF entity corresponding to the second UE includes:

the first SMF entity determines the second SMF entity corresponding to the second UE and address information of the second SMF entity according to the registration information of the second UE;

and the first SMF entity issues the generated forwarding strategy to the second SMF entity according to the address information of the second SMF entity.

3. The data transmission method of claim 1, wherein the related information includes identification information of a slice corresponding to the session and identification information of a data network,

the issuing the registration information of the second UE in the VN group to the first SMF entity includes:

the group management and control function module determines the VN group according to the identification information of the slice and the identification information of the data network;

and the group management and control function module acquires the registration information of the second UE in the VN group.

4. The data transmission method according to claim 1, further comprising:

the first SMF entity issues the forwarding strategy to a user plane function UPF entity controlled by the first SMF entity;

and the second SMF entity issues the forwarding strategy to the UPF entity controlled by the second SMF entity.

5. The data transmission method according to any one of claims 1 to 4, wherein the group management function module that determines the virtual network VN group corresponding to the related information includes:

the first SMF entity obtains subscription information of each VN group from a Unified Data Management (UDM) entity corresponding to each VN group;

the first SMF entity determines the VN group corresponding to the relevant information according to the subscription information of each VN group and the relevant information of the session.

6. The data transmission method according to any one of claims 1 to 4, wherein the group management function module that determines the virtual network VN group corresponding to the related information includes:

in the case that the session is a 5G local area network LAN session, the first SMF entity sends related information of the session to a network storage function NRF entity;

and the first SMF entity receives the related information of the group management and control function module returned by the NRF entity according to the related information of the session.

7. A data transmission method for a virtual network group, comprising:

under the condition that the first User Equipment (UE) establishes a session on a corresponding first Session Management Function (SMF) entity, a group management function module receives a session registration request sent by the first SMF entity;

the group management and control function module registers the first UE to a Virtual Network (VN) group corresponding to the session registration request;

the group management and control function module issues the registration information of the second UE in the VN group to the first SMF entity, so that the first SMF entity issues a forwarding policy of the VN group to the second SMF entity corresponding to the second UE according to the registration information, where the forwarding policy is used to perform data transmission across SMF entities.

8. A data transmission method for a virtual network group, comprising:

and the first SMF entity issues a forwarding strategy of the VN group to a second SMF entity corresponding to the second UE according to the registration information of the second UE in the VN group returned by the group management and control function module, wherein the forwarding strategy is used for performing data transmission across the SMF entities.

9. A data transmission system of a virtual network group, comprising:

a first session management function SMF entity, configured to, when a first user equipment UE establishes a session, determine, according to relevant information of the session, a group management function module of a virtual network VN group corresponding to the relevant information, register the session to the group management function module, and send, according to the registration information, a forwarding policy of the VN group to a second SMF entity corresponding to a second UE, where the forwarding policy is used to perform data transmission across the SMF entities;

and the group management and control function module is used for transmitting the registration information of the second UE in the VN group to the first SMF entity.

10. The data transmission system of claim 9, wherein,

and the first SMF entity determines the second SMF entity corresponding to the second UE and the address information of the second SMF entity according to the registration information of the second UE, and issues the generated forwarding strategy to the second SMF entity according to the address information of the second SMF entity.

11. The data transmission system of claim 9, wherein,

the related information comprises identification information of a slice corresponding to the session and identification information of a data network;

and the group management and control function module determines the VN group according to the identification information of the slice and the identification information of the data network, and acquires the registration information of the second UE in the VN group.

12. The data transmission system of claim 9, wherein the first SMF entity issues the forwarding policy to a user plane function UPF entity that it controls;

the transmission system further includes:

and the second SMF entity is used for issuing the forwarding strategy to the UPF entity controlled by the second SMF entity.

13. The data transmission system according to any of claims 9-12, wherein,

the first SMF entity obtains the subscription information of each VN group from the Unified Data Management (UDM) entity corresponding to each VN group, and determines the VN group corresponding to the related information according to the subscription information of each VN group and the related information of the session.

14. The data transmission system according to any of claims 9-12, wherein,

and under the condition that the session is a 5G Local Area Network (LAN) session, the first SMF entity sends related information of the session to a network storage function (NRF) entity and receives the related information of the group management and control function module returned by the NRF entity according to the related information of the session.

15. A data transmission device of a virtual network group, the data transmission device being disposed in a group management and control function module, comprising:

a receiving unit, configured to receive a session registration request sent by a first SMF entity when a first user equipment UE establishes a session on a corresponding first session management function SMF entity;

a registration unit, configured to register a first UE to a virtual network VN group corresponding to the session registration request;

and the sending unit is used for sending the registration information of the second UE in the VN group to the first SMF entity so that the first SMF entity can send the forwarding strategy of the VN group to the second SMF entity corresponding to the second UE according to the registration information, and the forwarding strategy is used for performing data transmission across the SMF entities.

16. A data transmission device of a virtual network group, where the data transmission device is disposed in a first session management function SMF entity corresponding to a first user equipment UE, and includes:

the determining unit is used for determining a group management and control function module of the virtual network VN group corresponding to the related information according to the related information of the session when the first UE establishes the session;

a registration unit, configured to register the session to the group management and control function module;

the sending unit is configured to send a forwarding policy of the VN group to a second SMF entity corresponding to the second UE according to the registration information of the second UE in the VN group returned by the group management and control function module, where the forwarding policy is used for performing data transmission across the SMF entities.

17. An electronic device, comprising:

a memory; and

a processor coupled to the memory, the processor configured to perform the data transmission method of the virtual network group of any of claims 1-8 based on instructions stored in the memory.

18. A non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the data transmission method of a virtual network group according to any of claims 1-8.