WO2023098484A1

WO2023098484A1 - Application-based slice selection method, gateway, terminal, and storage medium

Info

Publication number: WO2023098484A1
Application number: PCT/CN2022/132584
Authority: WO
Inventors: 高夕玲
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-12-03
Filing date: 2022-11-17
Publication date: 2023-06-08
Also published as: CN116319334A

Abstract

Provided in the present application are an application-based slice selection method, a gateway, a terminal, and a storage medium. The method comprises: acquiring, from a network side, a correlation between applications and slices, and respectively mapping, to different service set identifiers (SSIDs), the slices corresponding to the applications, so as to obtain a correlation between the applications and the SSIDs; and sending the correlation between the applications and the SSIDs to a terminal device, such that the terminal device communicates with a gateway device on the basis of an SSID corresponding to an application which is currently being started.

Description

Application-based slice selection method, gateway, terminal and storage medium

Cross References to Related Applications

This application claims priority to Patent Application No. 202111466755.7 filed with the China Patent Office on December 3, 2021, the entire contents of which are hereby incorporated by reference.

technical field

This application relates to but not limited to the technical field of mobile communication.

Background technique

With the advancement of 5G (fifth generation communication technology) technology, 5G networks support slicing functions. For network slicing functions, the 3GPP protocol defines a network based on Deep Neural Networks (Deep Neural Networks, DNN) and Internet Protocol (Internet Protocol, IP). ), application program (Application, APP) and other slicing functions. These functions can basically cover the scenarios where data endpoint devices use slicing, especially APP-based slicing scenarios, which may become mainstream scenarios in the future. Therefore, the slice function defined in the corresponding 3GPP protocol has been valued by various industries. It becomes a problem to be solved to realize the slicing function in various communication devices, for example, communication endpoint devices (mobile phones, modules, etc.), data transfer devices (gateways, routers, etc.).

Contents of the invention

On the one hand, this application provides an application-based slice selection method, which is applied to a gateway device, including: obtaining the correspondence between applications and slices from the network side, and mapping each slice corresponding to each application to a different service set Identifying the SSID to obtain the correspondence between the application and the SSID; sending the correspondence between the application and the SSID to the terminal device for the terminal device to communicate with the gateway device based on the SSID corresponding to the currently activated application.

On the other hand, this application also proposes an application-based slice selection method, which is applied to a terminal device, including: obtaining the corresponding relationship between the application and the SSID from the gateway device; after starting the application, after the application and the SSID Query the SSID corresponding to the currently started application in the corresponding relationship; if the corresponding SSID is found, communicate with the gateway device based on the corresponding SSID.

On the other hand, the present application also proposes a gateway device, including: a mapping module configured to obtain the correspondence between applications and slices from the network side, and map slices corresponding to each application to different service set identifiers SSID , to obtain the corresponding relationship between the application and the SSID; the sending module is configured to send the corresponding relationship between the application and the SSID to the terminal device, so that the terminal device can communicate with the gateway device based on the SSID corresponding to the currently started application .

On the other hand, the present application also proposes a terminal device, including: an obtaining module configured to obtain the corresponding relationship between the application and the service set identifier SSID from the gateway device; Querying the SSID corresponding to the currently started application in the SSID correspondence; the communication module is configured to communicate with the gateway device based on the corresponding SSID when the corresponding SSID is found.

On the other hand, the present application also proposes a gateway device, which includes: at least one processor; and a memory connected in communication with at least one processor; wherein, the memory stores instructions that can be executed by at least one processor, and the instructions When executed by at least one processor, at least one processor is caused to execute any application-based slice selection method described herein.

On the other hand, the present application also proposes a terminal device, which includes: at least one processor; and a memory connected in communication with at least one processor; wherein, the memory stores instructions that can be executed by at least one processor, and the instructions When executed by at least one processor, at least one processor is caused to execute any application-based slice selection method described herein.

On the other hand, the present application also proposes a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor is made to implement any application-based slice selection method described herein.

Description of drawings

Fig. 1 is a flow chart of the application-based slice selection method of the present application;

Fig. 2 is a flow chart of the application-based slice selection method of the present application;

Fig. 3 is a schematic structural diagram of a gateway device of the present application;

FIG. 4 is a schematic structural diagram of a terminal device of the present application;

Fig. 5 is a schematic structural diagram of a gateway device of the present application.

Detailed ways

For the APP-based slice selection function, in a wireless routing environment, gateway devices cannot identify APP-related information to complete slice selection. Although it is theoretically possible to implement slice selection based on IP addresses, it is difficult to apply in actual use due to the variability of IP addresses. Therefore, the APP-based slice selection function cannot be implemented in wireless routing scenarios.

In order to at least partly solve the above problems, at least one embodiment of the present application provides an application-based slice selection method, which is applied to a gateway device, including: obtaining the correspondence between applications and slices from the network side, and corresponding to each application Each slice of the SSID is mapped to a different service set identifier SSID, and the corresponding relationship between the application and the SSID is obtained; the corresponding relationship between the application and the SSID is sent to the terminal device for the terminal device to communicate with the gateway device based on the SSID corresponding to the currently started application. communication.

In the application-based slice selection method provided in the embodiments of the present application, the gateway device obtains the correspondence between applications and slices on the network side, and then maps each slice corresponding to each application to its corresponding different service set identifier SSID, and then obtains the application and slice. The corresponding relationship between the SSID, and then send the corresponding relationship between the application and the SSID to the terminal device, so that the terminal can communicate with the gateway device based on the SSID corresponding to the currently started application. According to the corresponding relationship between the application and the slice, the corresponding relationship between the application and the SSID is obtained, and it is sent to the terminal device, so that when the terminal device starts the current application, it can communicate with the gateway device through the specified network port according to the SSID corresponding to the current application. Communication, and call the slice corresponding to the SSID for data interaction, and use the corresponding relationship between the application and the SSID to indirectly realize the network slice selection, so that in the wireless routing scenario, the slice selection function of the gateway device can be realized simply and efficiently.

In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the various embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that in each implementation manner of the application, many technical details are proposed in order to make readers better understand the application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized. The division of the following implementations is for the convenience of description, and should not constitute any limitation to the specific implementations of the present application, and the implementations can be combined and referenced to each other on the premise of no contradiction.

The implementation details of the application-based slice selection method described in this application will be described in detail below in conjunction with specific implementation modes. The following content is only implementation details provided for easy understanding, and is not necessary for implementing this solution.

The first aspect of the implementation of the present application provides an application-based slice selection method. Refer to FIG. 1 for an exemplary flow of the application-based slice selection method. In some implementations, the application-based slice selection method is applied to Gateway devices with access capabilities, such as electronic devices such as home gateways and routers for end users.

In step 101, the corresponding relationship between applications and slices is obtained from the network side, and each slice corresponding to each application is mapped to a different service set identifier SSID to obtain the corresponding relationship between applications and SSIDs.

In an exemplary embodiment, after the home gateway is deployed and put into use, based on the support of network slicing, it interacts with the 3GPP core network through a preset communication protocol, and obtains multiple applications from the core network and creates applications with different quality of service. According to the corresponding relationship between slices, and according to the obtained correspondence between applications and slices, each slice corresponding to each application is mapped to a different service set identifier SSID, and different service set identifiers in different applications and home gateways are obtained. SSID correspondence, and store the obtained correspondence in its own storage module, or under a storage address capable of communicating with itself.

In an example, before the home gateway maps each slice corresponding to each application to a different service set identifier SSID, the method further includes: establishing multiple slices; SSID; when multiple SSIDs are established successfully, map each slice corresponding to each application to a different service set identifier SSID.

Exemplarily, after the home gateway is put into use, it interacts with the 3GPP core network based on the support of network slicing based on the function support it needs to provide or received instructions, and obtains configuration information corresponding to multiple slices to be created, and then according to each The configuration information corresponding to the slice, and multiple slice functions corresponding to different service qualities are created on the home gateway. After the home gateway completes the creation of multiple slices, it can also detect whether the multiple slices have been created successfully. According to the detection result, re-request new configuration information, complete the re-creation of slices that fail to be created, until all slices with created slices are successfully created.

After multiple slices with different service qualities are successfully created, the home gateway will enable the SSID function supported by itself, and create multiple service set identification SSIDs inside the home gateway. The number of service set identification SSIDs supported by the home gateway can be determined according to the The supported data and the number of pre-created slices are determined. After multiple SSIDs are created, it is also possible to check whether all SSIDs have been successfully created. If it is detected that the storage creation fails or the parameters of the SSID are invalid, the SSID will be recreated. Until all SSIDs are created successfully. Then the home gateway establishes a mapping relationship between the created slice and the service set identifier SSID. That is, different slices are assigned corresponding SSIDs, and the corresponding relationship between each slice and the service set identifier SSID is stored in a specified storage address or device, which is convenient for subsequent calling. After establishing multiple different slice functions according to the possible needs of the terminal device, create and store multiple service set identifiers SSID and the mapping relationship between the service set identifier SSID and the slice, so that the subsequent application can be determined according to the mapping relationship between the slice and the service set identifier SSID The corresponding relationship with the service set identifier SSID improves the efficiency of the slice selection function implemented by the home gateway.

In another example, the home gateway maps the slices corresponding to the applications to different service set identifiers (SSIDs), including: configuring independent routes for the network ports of the SSIDs according to the slices corresponding to the applications. Exemplarily, when the home gateway maps each slice to a different service set identifier SSID, according to the corresponding relationship between the slices, the service set identifier SSID and the application, obtain the routing configuration of the network port corresponding to each service set identifier SSID Information, and according to the obtained routing configuration information, perform independent routing configurations for the network ports corresponding to the SSIDs of each service set identifier. According to the corresponding relationship between slices and service set identifiers SSID and applications, the independent routing configuration is accurately completed for the network ports corresponding to each service set identifier SSID, so that terminal devices can accurately call the corresponding slice function according to the specified network port.

In step 102, the corresponding relationship between the application and the SSID is sent to the terminal device, so that the terminal device can communicate with the gateway device based on the SSID corresponding to the currently activated application.

Exemplarily, after receiving the dynamic host configuration request from the terminal device, the home gateway carries the pre-acquired and stored correspondence between the application and the service set identifier SSID in a response message and sends it to the terminal device, so that the terminal device can determine the currently activated application The corresponding service set identifier SSID, and based on the service set identifier SSID corresponding to the currently started application, calls the slice corresponding to the service set identifier SSID through the specified network port to communicate with the gateway device. By sending the corresponding relationship between the application and the service set identifier SSID to the terminal device, the terminal setting can select the specified network port to call the slice corresponding to the service set identifier SSID to communicate with the gateway device according to the service set identifier SSID corresponding to the currently started application , using the corresponding relationship between the application and the service set identifier SSID to indirectly implement network slice selection.

In an example, the home gateway sends the corresponding relationship between the application and the SSID to the terminal device, including: after receiving the Dynamic Host Configuration Protocol DHCP process initiated by the terminal device, carrying the application in the custom extension field of the DHCP response message The corresponding relationship with the SSID is to send the corresponding relationship between the application and the SSID to the terminal device. Exemplarily, the communication protocol of the dynamic host configuration protocol DHCP is used for communication between the home gateway and the terminal device. When the terminal device needs to communicate with the home gateway, it initiates a dynamic host configuration request to the home gateway based on DHCP. After the home gateway receives the dynamic host configuration request from the terminal device, it reads the pre-stored correspondence between the application and the service set identifier SSID, and then encapsulates the correspondence information between the application and the slice/SSID in a customized DHCP-based response message. extension field. Then feed back the DHCP response message carrying the corresponding relationship between the application and the SSID to the terminal device, so that the terminal device can analyze the obtained DHCP response message to obtain the corresponding relationship between the application and the SSID, and according to the SSID corresponding to the current application , call the slice corresponding to the service set identifier SSID through the specified network port to communicate with the gateway device. By carrying the corresponding relationship between the application and the service set identifier SSID in the extension field of the DHCP response, the corresponding relationship is issued based on the existing protocol to realize the slice selection function in the wireless routing scenario, avoiding the need to propose new configurations or Functional requirements, reduced implementation costs, and improved application prospects.

For ease of understanding, the slice selection process will be described below with reference to examples. In the current wireless routing scenario, there are two SSIDs on the home gateway, and there are only two applications on the communication terminal, namely the game app "Glory of Kings" and the ordinary app "Toutiao". The home gateway has created two slices in advance. They are 5G network normal slices and 5G network game slices respectively. The SSIDs "ZTE_SSID_NORMAL" and "ZTE_SSID_GAME" are configured to correspond to "5G network normal slices" and "5G network game slices" respectively, and the SSID and slices are established through the routing table. Routing correspondence. And according to the corresponding relationship between the application and the slice, the corresponding relationship between the application and the SSID is determined and stored. That is, "Glory of Kings" corresponds to ZTE_SSID_GAME; all other applications correspond to ZTE_SSID_NORMAL.

When the terminal accesses the home gateway and initiates the DHCP process, the corresponding relationship between the application and the SSID is encapsulated in the extended field of the DHCP response message. After receiving the DHCP response message, the communication terminal connects to "ZTE_SSID_NORMAL" by default, and performs communication services based on this SSID. .

When the user runs the APP "Toutiao" on the communication terminal, since the application does not configure a separate SSID, it continues to use the default "ZTE_SSID_NORMAL" for communication. At this time, the data flow direction is: "Toutiao"<—>"ZTE_SSID_NORMAL"< —> "5G Network Common Slicing". After a period of time, the user runs "Gloary Of Kings" on the communication terminal. When the APP starts, because the application is configured with a separate SSID, according to the mapping relationship between the SSID and the slice, the connection to the specified slice corresponding to the APP is triggered, which is "ZTE_SSID_GAME" . The APP will be bound to the "network port" corresponding to the SSID (for example, it can be realized through SO_BINDTODEVICE of the socket on a Linux operating system). The data flow at this time is: "Gloary Of Kings" <—> "ZTE_SSID_GAME" <—> "5G Network Game Slice".

If the communication terminal does not support multiple Wi-Fi connections, after starting the game application, the communication terminal will automatically disconnect the default connection ZTE_SSID_NORMAL, and if the communication terminal supports multiple Wi-Fi connections, the previous connection can be maintained.

After a while, the user exits Glory of Kings. When the communication terminal exits the APP, it checks the slice/SSID information issued by the router, triggers the process of disconnecting the connection of the specific slice "ZTE_SSID_GAME", and automatically disconnects the connection with the 5G game slice.

Another aspect of the embodiments of the present application also provides an application-based slice selection method. Refer to FIG. 2 for an exemplary flow of the application-based slice selection method. In some embodiments, the application-based slice selection method is applied to In the terminals of ingress gateway devices, such as electronic devices such as mobile phones, computers, and digital TVs, this embodiment is described by taking mobile phones as an example. The slice selection method at least includes but is not limited to the following steps 201 to 203.

In step 201, the corresponding relationship between the application and the SSID is obtained from the gateway device.

Exemplarily, in the wireless routing scenario, the mobile phone first connects to the home gateway or wireless router through WIFI before performing data communication interaction, and before starting the application, first initiates a dynamic host configuration request to the home gateway or wireless router, Request to obtain the IP address of the dynamic host configured in the data traffic process, and obtain the corresponding relationship between the application to be started and the service set identifier from the gateway device.

In an example, the mobile phone obtains the corresponding relationship between the application and the service set identifier SSID from the gateway device, including: after initiating the dynamic host configuration protocol DHCP process to the gateway device, receiving a DHCP response message fed back by the gateway device; wherein, the DHCP response message The custom extension field carries the correspondence between the application and the SSID; the correspondence between the application and the SSID is obtained by parsing the custom extension field of the DHCP response message. Exemplarily, after the mobile phone is connected to the home gateway or wireless router through WIFI, it initiates a dynamic host configuration request to the connected gateway device based on the dynamic host configuration protocol DHCP, and then receives a DHCP response message sent by the gateway device. Analyzing the custom extension field in the received DCHP response message, obtaining the corresponding relationship between the application encapsulated in the custom extension field and the SSID, and storing it in its own storage module. By using the extended field of the existing protocol to encapsulate and transmit the corresponding relationship between the application and the SSID, the terminal can directly obtain the corresponding relationship between the application and the SSID based on the existing protocol, and then obtain the corresponding relationship between the application and the slice, and realize wireless network simply and efficiently. In the routing scenario, the terminal device selects the network slice based on the APP.

In step 202, after the application is started, the SSID corresponding to the currently started application is queried in the corresponding relationship between the application and the SSID. For example, after the mobile phone detects that the user starts an application in the mobile phone, it reads the correspondence between the application and the SSID stored in itself, detects whether the SSID corresponding to the currently started application is pre-stored, and then determines the network port for communication with the gateway device .

In an example, after the mobile phone inquires about the SSID corresponding to the currently started application, if the corresponding SSID is not found, it communicates with the gateway device based on the preset SSID. For example, when the mobile phone fails to obtain the SSID corresponding to the currently started application, it determines that the SSID corresponding to the currently started application is a preset default SSID, and directly selects a designated network port to communicate with the gateway device based on the preset default SSID. communication. By pre-setting the default SSID used when the corresponding SSID cannot be queried, it is avoided that the data communication of the application with the preset SSID is disturbed during the activation process of the new application or the application without the preset specified SSID.

In step 203, if the corresponding SSID is inquired, communicate with the gateway device based on the corresponding SSID.

Exemplarily, when the mobile phone has inquired about the SSID corresponding to the currently launched application, it calls the slice corresponding to the SSID to communicate with the gateway device according to the network port corresponding to the inquired SSID, and uses the corresponding relationship between the application and the SSID to indirectly Implement network slice selection.

In addition, it should be understood that the division of steps in the above methods is only for clarity of description, and may be combined into one step or split into multiple steps during implementation. As long as the same logical relationship is included, all Within the scope of protection of this patent; adding insignificant modifications or introducing insignificant designs to the algorithm or process, but not changing the core design of the algorithm and process are all within the scope of protection of the patent.

Another aspect of the embodiment of the present application relates to a gateway device. Referring to FIG. 3 , it includes: a mapping module 301 configured to acquire the correspondence between applications and slices from the network side, and map each slice corresponding to each application to a different The service set identifier SSID of the service set to obtain the corresponding relationship between the application and the SSID; the sending module 302 is configured to send the corresponding relationship between the application and the SSID to the terminal device, so that the terminal device can communicate with the gateway device based on the SSID corresponding to the currently started application .

It is not difficult to find that this implementation mode is an apparatus implementation mode corresponding to the method implementation mode applied to the gateway device, and this implementation mode can be implemented in cooperation with the method implementation mode. The relevant technical details mentioned in the method implementation are still valid in this implementation, and will not be repeated here in order to reduce repetition. Correspondingly, the related technical details mentioned in this implementation manner can also be applied in the method implementation manner.

It is worth mentioning that all the modules involved in this embodiment are logical modules. In practical applications, a logical unit can be a physical unit, or a part of a physical unit, or multiple physical units. Combination of units. In addition, in order to highlight the innovative part of the present invention, units that are not closely related to solving the technical problems proposed by the present invention are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.

Another aspect of the embodiment of the present application relates to a terminal device. Referring to FIG. 4 , it may include: an obtaining module 401 configured to obtain a correspondence relationship between an application and a service set identifier SSID from a gateway device; a query module 402 configured to start the application Afterwards, query the SSID corresponding to the currently started application in the corresponding relationship between the application and the SSID; the communication module 403 is configured to communicate with the gateway device based on the corresponding SSID if the corresponding SSID is found.

It is not difficult to find that this implementation manner is an apparatus implementation manner corresponding to a method implementation manner applied to a terminal device, and this implementation manner can be implemented in cooperation with the method implementation manner. The relevant technical details mentioned in the method implementation are still valid in this implementation, and will not be repeated here in order to reduce repetition. Correspondingly, the related technical details mentioned in this implementation manner can also be applied in the method implementation manner.

Another aspect of the embodiment of the present application also provides a gateway device. Referring to FIG. 5 , it includes: at least one processor 501; and a memory 502 communicatively connected to the at least one processor 501; The instruction executed by at least one processor 501, when the instruction is executed by the at least one processor 501, causes the at least one processor 501 to execute the application-based slice selection method described in any method implementation above.

Wherein, the memory 502 and the processor 501 are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors 501 and various circuits of the memory 502 together. The bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein. The bus interface provides an interface between the bus and the transceivers. A transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing means for communicating with various other devices over a transmission medium. The data processed by the processor 501 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 501 .

Processor 501 is responsible for managing the bus and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management and other control functions. And the memory 502 may be used to store data used by the processor 501 when performing operations.

Another aspect of the embodiments of the present application also proposes a terminal device. The terminal device includes: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores information that can be executed by the at least one processor. The instruction, when executed by at least one processor, causes at least one processor to execute any application-based slice selection method described herein.

Another aspect of the embodiments of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by the processor, the processor is made to implement any one of the above-mentioned method implementation manners.

According to this application, according to the corresponding relationship between applications and slices, the corresponding relationship between applications and SSIDs is obtained and delivered to the terminal device, so that when the terminal is configured to start the current application, it can call the SSID corresponding to the SSID through the specified network port according to the SSID corresponding to the current application. The slice and the gateway device perform data interaction, and use the corresponding relationship between the application and the SSID to indirectly realize the network slice selection, so as to realize the slice selection function of the gateway device in the wireless routing scenario.

That is, those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, the program is stored in a storage medium, and includes several instructions to make a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .

Those of ordinary skill in the art can understand that the above-mentioned embodiments are exemplary embodiments for realizing the present application, and in practical applications, various changes can be made to it in form and detail without departing from the spirit of the present application and range.

Claims

An application-based slice selection method applied to a gateway device, comprising:

Obtain the corresponding relationship between the application and the slice from the network side, and map each slice corresponding to each application to a different service set identifier SSID, and obtain the corresponding relationship between the application and the SSID;

The corresponding relationship between the application and the SSID is sent to the terminal device, so that the terminal device communicates with the gateway device based on the SSID corresponding to the currently activated application.
The application-based slice selection method according to claim 1, wherein the sending the correspondence between the application and the SSID to the terminal device comprises:

After receiving the dynamic host configuration protocol DHCP process initiated by the terminal device, by carrying the corresponding relationship between the application and the SSID in the self-defined extension field of the DHCP response message, the corresponding relationship between the application and the SSID is sent to the terminal device.
The application-based slice selection method according to claim 1, wherein, before mapping each slice corresponding to each application to a different service set identifier (SSID), the method further comprises:

Create multiple slices;

When multiple slices are established successfully, multiple SSIDs are established;

In the case that the multiple SSIDs are established successfully, the mapping of each slice corresponding to each application to a different service set identifier SSID is performed again.
The application-based slice selection method according to any one of claims 1 to 3, wherein said mapping each slice corresponding to each application to a different service set identifier (SSID) includes:

According to each slice corresponding to each application, an independent route is configured for each network port of each SSID.
An application-based slice selection method applied to a terminal device, including:

Obtain the corresponding relationship between the application and the service set identifier SSID from the gateway device;

After starting the application, query the SSID corresponding to the currently started application in the corresponding relationship between the application and the SSID;

When the corresponding SSID is inquired, communicate with the gateway device based on the corresponding SSID.
The application-based slice selection method according to claim 5, wherein said acquiring the corresponding relationship between the application and the service set identifier (SSID) from the gateway device comprises:

After initiating a Dynamic Host Configuration Protocol DHCP process to the gateway device, receiving a DHCP response message fed back by the gateway device; wherein, the custom extension field of the DHCP response message carries the correspondence between the application and the SSID;

By parsing the self-defined extension field of the DHCP response message, the corresponding relationship between the application and the SSID is obtained.
The application-based slice selection method according to any one of claims 5 to 6, further comprising:

If the corresponding SSID is not found, communicate with the gateway device based on the preset SSID.
A gateway device, comprising:

The mapping module is configured to obtain the corresponding relationship between the application and the slice from the network side, and map each slice corresponding to each application to a different service set identifier SSID, so as to obtain the corresponding relationship between the application and the SSID;

The sending module is configured to send the corresponding relationship between the application and the SSID to the terminal device, so that the terminal device can communicate with the gateway device based on the SSID corresponding to the currently activated application.
A terminal device comprising:

The obtaining module is configured to obtain the corresponding relationship between the application and the service set identifier SSID from the gateway device;

The query module is configured to query the SSID corresponding to the currently started application in the corresponding relationship between the application and the SSID after the application is started;

A communication module configured to communicate with the gateway device based on the corresponding SSID if the corresponding SSID is found.
A gateway device, comprising:

at least one processor; and,

a memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and when the instructions are executed by the at least one processor, the at least one processor is executed as described in any one of claims 1 to 4. An application-based slice selection method.
A terminal device comprising:

at least one processor; and,

a memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and when the instructions are executed by the at least one processor, the at least one processor is executed as described in any one of claims 5 to 7. An application-based slice selection method.
A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor is made to implement the application-based slice selection method according to any one of claims 1 to 4.
A computer-readable storage medium storing a computer program, wherein, when the computer program is executed by a processor, the processor implements the application-based slice selection method according to any one of claims 5 to 7 .