CN114205184B

CN114205184B - Service data transmission method and device

Info

Publication number: CN114205184B
Application number: CN202010890169.4A
Authority: CN
Inventors: 闫京生
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2023-05-02
Anticipated expiration: 2040-08-28
Also published as: CN114205184A

Abstract

The embodiment of the application provides a service data transmission method and device. Acquiring service data of a target service and determining a target service type of the target service; determining a target virtual local area network VLAN identifier corresponding to the service type according to the target service type and a preset first corresponding relation; the first corresponding relation is the corresponding relation between VLAN identification and service type; and transmitting the service data through the network slice corresponding to the target VLAN identifier. The embodiment of the application solves the problem of invalid consumption of network bandwidth and other client CPU computing capacity caused by the VLAN data transmission mode in the prior art.

Description

Service data transmission method and device

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a service data transmission method and apparatus.

Background

In the field of mobile communications, a virtual local area network (Virtual Local Area Network, VLAN) includes a set of logical devices and users, which are not limited by physical location, and may be organized to communicate with each other according to functions, departments, applications, and other factors. The VLAN works at layers 2 and 3 of the open systems interconnection (Open System Interconnect, OSI) reference model, one VLAN is a broadcast domain and communication between VLANs is accomplished through layer 3 routers. In a computer network, a two-layer network may be divided into a plurality of different broadcast domains, one broadcast domain corresponding to each particular user group, the different broadcast domains being isolated from each other by default. Communication between different broadcast domains is desired, requiring passage through one or more layer 3 routers.

With only one broadcast domain, the overall transmission performance of the network is affected. As shown in fig. 1, a network is formed by connecting a large number of clients to one 5 two-layer switch (switches S1 to S5). If the computer P1 needs to communicate with the computer P2, in the ethernet-based communication, the destination MAC address must be specified in the data frame to communicate normally, so the computer P1 must first broadcast an address resolution protocol (Address Resolution Protocol, ARP) request to attempt to acquire the medium access control layer (Media Access Control, MAC) address of the computer P2.

After receiving the ARP request in the broadcast frame, the switch S1 forwards the ARP request to all ports except the receiving port, for example, ports S2 to S4; in the case of a large number of ARP requests, the requests received at the S2 to S4 ports will be overloaded. Eventually, the ARP request of computer P1 will be forwarded to all clients in the same network, causing a network storm.

The ARP request of computer P1 is originally sent to obtain the MAC address of computer P2; that is to say: as long as the computer P2 is able to receive it. In practice, the data frame spreads throughout the network, resulting in all computers (clients) receiving it. Thus, broadcasting information consumes the whole bandwidth of the network on one hand; on the other hand, the computer receiving the broadcast information also consumes a part of the time of the central processing unit (Central Processing Unit, CPU) to process the broadcast information, which causes a great deal of consumption of the computing capability of the CPU and even causes network paralysis. Therefore, in the prior art, the data transmission mode of the VLAN causes ineffective consumption of network bandwidth and other client CPU computing power.

Disclosure of Invention

The embodiment of the application provides a service data transmission method and device, which are used for solving the problem that in the prior art, the network bandwidth and the CPU operation capacity of other clients are not consumed in a VLAN data transmission mode.

In one aspect, an embodiment of the present application provides a service data transmission method, where the method includes:

acquiring service data of a target service and determining a target service type of the target service;

determining a target virtual local area network VLAN identifier corresponding to the service type according to the target service type and a preset first corresponding relation; the first corresponding relation is the corresponding relation between VLAN identification and service type;

and transmitting the service data through the network slice corresponding to the target VLAN identifier.

Optionally, the determining the target service type of the target service includes:

acquiring a preset service type of the target service;

or (b)

Acquiring target attribute information of a protocol data unit PDU session of the target service;

and determining a target service type corresponding to the target attribute information.

Optionally, the determining the target service type corresponding to the target attribute information includes:

determining a target service type corresponding to the target attribute information according to the parameter range of each parameter in the service type; the parameter range of each parameter of the target service type includes the parameter of the target attribute information.

Optionally, if the target service includes an uplink service, before the service data is transmitted through the network slice corresponding to the VLAN identifier, the method includes:

and sending indication information to a transmission switch, wherein the indication information comprises information for indicating the transmission switch to set a second corresponding relation between access network equipment corresponding to the target service and the target VLAN identifier.

Optionally, if the target service includes an uplink service, the network slice includes a transport network slice;

and if the target service comprises downlink service, the network slice comprises a wireless network slice.

On the other hand, the embodiment of the application also provides a service data transmission device, which comprises:

the acquisition module is used for acquiring service data of a target service and determining a target service type of the target service;

the determining module is used for determining a target virtual local area network VLAN identifier corresponding to the service type according to the target service type and a preset first corresponding relation; the first corresponding relation is the corresponding relation between VLAN identification and service type;

and the transmission module is used for transmitting the service data through the network slice corresponding to the target VLAN identifier.

Optionally, the acquiring module includes:

the first acquisition sub-module is used for acquiring the preset service type of the target service;

or (b)

A second obtaining sub-module, configured to obtain target attribute information of a protocol data unit PDU session of the target service;

and the type determining sub-module is used for determining a target service type corresponding to the target attribute information.

Optionally, the type determination submodule is configured to:

Optionally, the apparatus further comprises:

an indication module, configured to, if the target service includes an uplink service, before the transmission module transmits the service data through a network slice corresponding to the VLAN identifier,

In yet another aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the steps in the service data transmission method described above are implemented.

In yet another aspect, embodiments of the present application further provide a computer readable storage medium having a computer program stored thereon, which when executed by a processor, implements the steps in the traffic data transmission method as described above.

In the embodiment of the application, service data of a target service are acquired, and a target service type of the target service is determined; determining a target virtual local area network VLAN identifier corresponding to the service type according to the target service type and a preset first corresponding relation; and transmitting the service data through the network slice corresponding to the target VLAN identifier. The VLAN function and the cutting of the broadcast domain are realized based on the network slice, so that excessive invalid service data are prevented from being transmitted in the network, and the network bandwidth is consumed; meanwhile, interference to clients other than the receiving end is avoided, and the CPU of the clients is occupied. The embodiment of the application solves the problem of invalid consumption of network bandwidth and other client CPU computing capacity caused by the VLAN data transmission mode in the prior art.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a network structure in the background art of the present application;

fig. 2 is a flowchart of steps of a service data transmission method provided in an embodiment of the present application;

fig. 3 is a schematic diagram of a network structure of a second example of an embodiment of the present application;

fig. 4 is a block diagram of a service data transmission device according to an embodiment of the present application;

fig. 5 is a block diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present application, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application. The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the examples provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.

Fig. 2 shows a flow chart of a service data transmission method provided in an embodiment of the present application.

The embodiment of the application provides a service data transmission method, which can be applied to access network equipment, wherein the access network equipment can be a Base Station (BS), and the BS is a device which is deployed in the access network and used for providing a wireless communication function for UE. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different radio access technologies, the names of base station capable devices may vary, for example in 5G NR systems, called gndeb or gNB. As communication technology evolves, the name "base station" may change. For convenience of description, in the embodiment of the present invention, the above-mentioned devices for providing wireless communication functions for UEs are collectively referred to as access network devices.

As shown in fig. 2, the method includes:

step 201, obtaining service data of a target service, and determining a target service type of the target service.

Wherein, the target service can be an uplink service or a downlink service; for uplink service, service data is transmitted to a core network by a terminal through a base station; for downstream traffic, traffic data is transmitted by the core network to the terminal via the base station.

After receiving service data of a target service, a base station determines the service type of the target service; traffic types such as enhanced mobile broadband (Enhanced Mobile Broadband, eMBB), mass machine communication (massive Machine Type of Communication, mctc) and high reliability low latency communication (ultra-Relaible and Low Latency Communication, ul lc), among these 3 types, can be further divided into multiple scenarios, such as eMBB1, eMBB2, … …, eMBBn, depending on specific parameters.

Optionally, in the process of determining the service type, the service type preset by the target service may be obtained, and the service type may be determined according to the relevant parameters of the target service.

Step 202, determining a target virtual local area network VLAN identifier corresponding to the service type according to the target service type and a preset first corresponding relation; the first correspondence is a correspondence between VLAN identifiers and service types.

The first corresponding relation is the corresponding relation between VLAN identification and service type; in the first corresponding relation, different VLAN identifications correspond to different service types; as a first example, as shown in table 1 below.

Table 1:

service class	Corresponding VLAN Identification (ID)
		eMBB1	10
eMBB2	20
		eMBB3	30
eMBB4	40
		mMTC1	110
mMTC2	120
		uRLLC1	210
uRLLC2	211
		uRLLC3	212

In table 1, ebb 2, ebb 3, and ebb 4 are sub-service types of the ebb scene, and the following performance is generally provided in the ebb scene: high throughput, high rate, low latency; and the specific ranges corresponding to the above parameters are different for each sub-service type.

mctc 1 and mctc 2 are respectively sub-service types of mctc scene, and mctc generally has the following properties: low throughput, high rate, low latency; and the specific ranges corresponding to the above parameters are different for each sub-service type.

The uRLLC1, the uRLLC2 and the uRLLC3 are sub-service types of the uRLLC scene respectively. uRLLC generally has the following properties: low throughput, high rate, ultra low latency, and each sub-traffic type varies with the particular range of parameters described above.

Different service types are pre-bound with corresponding VLAN identifications, namely, different service types are pre-bound with corresponding VLANs; each VLAN corresponds to a respective network slice; specifically, in a wireless communication system, a network slice cuts one physical network into multiple virtual end-to-end networks. The network slice can be used by an operator to provide mutually isolated and functionally customizable network services for different vertical industries, different customers and different services based on business service agreements (Service level Agreement, SLA) signed by the operator with customers. A network slice is a logical network that provides specific network capabilities and characteristics, and is carried by network slice instances, which are deployed network slices that include network function instances and required resources, such as computing, storage, and networking, to enable the design, deployment, and operation of customized network slices.

In The fifth generation communication technology (The 5th Generation Mobile Communication Technology,5G), the network slice includes a radio subslice of a radio domain, a transmission subslice of a transmission domain, and a core network subslice of a core network domain; wireless sub-slices such as wireless sub-slices formed by Centralized Unit (CU) network elements, distributed Unit (DU) network elements, and base station (gNB); if the target service is uplink service, the target VLAN identifier corresponds to the network slice as a wireless sub-slice when the base station transmits the uplink service.

A transmission sub-slice, e.g., a transmission sub-slice formed by a transmission device of a transmission domain; the transport sub-slices are core network sub-slices formed by virtual network functions such as access to the core network domain, mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), network slice selection functions (Network Slice Selection Function, NSSF), network element data warehouse functions (NF Repository Function, NRF), network capability open functions (Network Exposure Function, NEF), short message service functions (Short Message Service Function, SMSF), and the like. If the target service is uplink service, the target VLAN identifier corresponds to the network slice as a transmission sub-slice when the base station transmits the uplink service. That is, if the target traffic includes uplink traffic, the network slice includes a transport network slice; and if the target service comprises downlink service, the network slice comprises a wireless network slice.

In the first correspondence, the VLAN is bound according to the service type, that is, the service type is bound according to the performance of the network slice corresponding to the VLAN, and for each service type, the network slice whose slice performance can meet the transmission parameter requirement of the type of service is selected to transmit the service data of the target service.

And step 203, transmitting the service data through the network slice corresponding to the target VLAN identifier.

For uplink service, the base station determines a target VLAN identifier corresponding to the uplink service type according to the first corresponding relation, and transmits the service data to a core network according to a transmission sub-slice corresponding to the target VLAN identifier; for downlink service, the base station determines a target VLAN identifier corresponding to the downlink service type according to the first corresponding relation, and transmits the service data to the terminal according to the wireless sub-slice corresponding to the target VLAN identifier.

As a second example, as shown in fig. 3, in the above-described transmission process, the network architecture corresponding to fig. 1, the transmission switches S1 and S2 correspond to VLAN1 and VLAN2, respectively; clients P1, P2 belong to VLAN1, and clients P1, P2 belong to VLAN2. Thus, if the client P1 needs to communicate with the client P2, the switch S1 only transmits the broadcast frame sent from the client P1 to the client P2 in VLAN1, and the client will not be involved; whereas inter-VLAN communication may use a router or a three-layer switch, such as client P1 needs to communicate with client P2, switch S1 sends broadcast frames to switch S3 and not to other switches having a connection path with switch S1, such as S2. In the embodiment of the application, VLAN is realized based on network slicing, so that the cutting of a broadcast domain is realized, and invalid service data transmitted between communication networks is reduced.

In an alternative embodiment, the determining the target service type of the target service includes a case one or a case two:

in the first case, acquiring a preset service type of the target service;

for example, for each service, presetting the service type of the service, and carrying the identification of the service type in a preset field in service data; when receiving the service data, the base station can determine the corresponding service type according to the identification of the service type.

Target attribute information of the protocol data unit (Protocol Data Unit, PDU) such as rate, throughput, delay, etc. corresponding index parameters of the fixed network transmission; and acquiring target attribute information of the PDU session of the target service, and determining a target service type corresponding to the target attribute information according to the target attribute information.

Specifically, in an optional embodiment, the determining the target service type corresponding to the target attribute information includes:

And presetting a parameter range of all parameters of each service type, and if each parameter in the attribute information of the target service falls into the parameter range of a certain type of service, determining the service type of the target service as the type.

That is, the parameter range of each parameter of the target service type includes the parameter of the target attribute information. For example, the attribute information of the service M includes A, B, C three parameters, and the parameter range of each parameter of the service type N is as follows: parameters a, A1 to A2; parameters B, B1 to B2; parameters C, C1 to C2;

and a has a value between A1 and A2, B has a value between B1 and B2, and C has a value between C1 and C2, so that the service type of the service M is the service type N.

In an alternative embodiment, if the target service includes an uplink service, before the service data is transmitted through the network slice corresponding to the VLAN identifier, the method includes:

And setting a transmission switch at the access network side corresponding to VLAN setting of the base station, sending indication information to the transmission switch, indicating the transmission switch to set a second corresponding relation between access network equipment corresponding to the target service and the target VLAN identifier, and determining a corresponding network slice to transmit service data according to the second corresponding relation between the base station and the target VLAN identifier when transmitting uplink service data.

Having described the service data transmission method provided by the embodiments of the present application, the service data transmission device provided by the embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to fig. 4, the embodiment of the present application further provides a service data transmission apparatus, where the apparatus may be applied to an access network device, and the access network device may be a Base Station (BS), where the BS is an apparatus deployed in an access network to provide a wireless communication function for a UE. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different radio access technologies, the names of base station capable devices may vary, for example in 5G NR systems, called gndeb or gNB. As communication technology evolves, the name "base station" may change. For convenience of description, in the embodiment of the present invention, the above-mentioned devices for providing wireless communication functions for UEs are collectively referred to as access network devices.

The device comprises:

the acquiring module 401 is configured to acquire service data of a target service, and determine a target service type of the target service.

After receiving service data of a target service, a base station determines the service type of the target service; the traffic types such as eMBB, emtc and uirllc may be further divided into a plurality of scenes such as eMBB1, eMBB2, … …, eMBBn among these 3 types according to specific parameters.

A determining module 402, configured to determine, according to the target service type and a preset first correspondence, a target VLAN identifier corresponding to the service type; the first correspondence is a correspondence between VLAN identifiers and service types.

Table 1:

A transmission sub-slice, e.g., a transmission sub-slice formed by a transmission device of a transmission domain; the transport subslice are core network subslices formed by virtual network functions such as AMF, SMF, UPF, NSSF, NRF, NEF, SMSF of the core network domain. If the target service is uplink service, the target VLAN identifier corresponds to the network slice as a transmission sub-slice when the base station transmits the uplink service. That is, if the target traffic includes uplink traffic, the network slice includes a transport network slice; and if the target service comprises downlink service, the network slice comprises a wireless network slice.

A transmission module 403, configured to transmit the service data through a network slice corresponding to the target VLAN identifier.

As a second example, as shown in fig. 2, in the above-described transmission process, the network architecture corresponding to fig. 1, the transmission switches S1 and S2 correspond to VLAN1 and VLAN2, respectively; clients P1, P2 belong to VLAN1, and clients P1, P2 belong to VLAN2. Thus, if the client P1 needs to communicate with the client P2, the switch S1 only transmits the broadcast frame sent from the client P1 to the client P2 in VLAN1, and the client will not be involved; whereas inter-VLAN communication may use routers or three-layer switches, such as client P1 needs to communicate with client P2, switch S1 sends broadcast frames to switch S3 and not to other switches having a connection path with switch S1, such as S2 and S2. In the embodiment of the application, VLAN is realized based on network slicing, so that the cutting of a broadcast domain is realized, and invalid service data transmitted between communication networks is reduced.

Optionally, in an embodiment of the present application, the obtaining module 401 includes:

or (b)

Optionally, in an embodiment of the present application, the type determining submodule is configured to:

Optionally, in an embodiment of the present application, the apparatus further includes:

an indication module, configured to, if the target service includes an uplink service, before the transmission module 403 transmits the service data through a network slice corresponding to the VLAN identifier,

Optionally, in the embodiment of the present application, if the target service includes an uplink service, the network slice includes a transport network slice;

The service data transmission device provided in the embodiment of the present application can implement each process implemented at the base station side in the method embodiments of fig. 1 to 3, and in order to avoid repetition, a description is omitted here.

In this embodiment of the present application, the acquiring module 401 acquires service data of a target service, and determines a target service type of the target service; the determining module 402 determines a target VLAN identifier corresponding to the service type according to the target service type and a preset first correspondence; the transmission module 403 transmits the traffic data through the network slice corresponding to the destination VLAN identification. The VLAN function and the cutting of the broadcast domain are realized based on the network slice, so that excessive invalid service data are prevented from being transmitted in the network, and the network bandwidth is consumed; meanwhile, interference to clients other than the receiving end is avoided, and the CPU of the clients is occupied. The embodiment of the application solves the problem of invalid consumption of network bandwidth and other client CPU computing capacity caused by the VLAN data transmission mode in the prior art.

In another aspect, an embodiment of the present application further provides an electronic device, including a memory, a processor, a bus, and a computer program stored in the memory and capable of running on the processor, where the steps in the service data transmission method are implemented when the processor executes the program.

For example, fig. 5 shows a schematic physical structure of an electronic device.

As shown in fig. 5, the electronic device may include: processor 510, communication interface (Communications Interface) 520, memory 530, and communication bus 540, wherein processor 510, communication interface 520, memory 530 complete communication with each other through communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform the following method:

Further, the logic instructions in the memory 530 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In still another aspect, embodiments of the present application further provide a computer readable storage medium having stored thereon a computer program, which when executed by a processor is implemented to perform the service data transmission method provided in the foregoing embodiments, for example, including:

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A method for transmitting service data, the method comprising:

acquiring service data of a target service, determining a target service type of the target service, wherein determining the target service type of the target service comprises the following steps:

acquiring target attribute information of a protocol data unit PDU session of the target service, wherein the target attribute information is index parameters corresponding to the transmission by using a fixed network;

determining a target service type corresponding to the target attribute information, wherein the determining the target service type corresponding to the target attribute information comprises the following steps:

determining a target service type corresponding to the target attribute information according to the parameter range of each parameter in the service type; the parameter range of each parameter of the target service type comprises the parameter of the target attribute information;

2. The traffic data transmission method according to claim 1, wherein if the target traffic includes an uplink traffic, before the traffic data is transmitted through the network slice corresponding to the VLAN identification, comprising:

3. The traffic data transmission method according to claim 1, wherein if the target traffic includes uplink traffic, the network slice includes a transport network slice;

4. A traffic data transmission apparatus, the apparatus comprising:

the acquisition module is used for acquiring service data of a target service and determining a target service type of the target service, and comprises the following steps:

a second obtaining sub-module, configured to obtain target attribute information of a protocol data unit PDU session of the target service, where the target attribute information is an index parameter corresponding to transmission using a fixed network;

a type determining submodule, configured to determine a target service type corresponding to the target attribute information, where the type determining submodule is configured to:

5. The traffic data transmission device according to claim 4, wherein the device further comprises:

6. The traffic data transmission device according to claim 4, wherein if the target traffic comprises uplink traffic, the network slice comprises a transport network slice;

7. An electronic device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, characterized in that the computer program when executed by the processor implements the steps of the traffic data transmission method according to any one of claims 1 to 3.

8. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of the traffic data transmission method according to any one of claims 1 to 3.