CN115843073A - Network slice selection method, mobile management function entity and terminal - Google Patents

Abstract

The invention discloses a network slice selection method, a mobility management functional entity and a terminal. The network slice selection method on the mobility management functional entity side includes: acquiring the routing selection policy URSP information of the terminal; receiving the description of the first application sent by the terminal Information: select a first target network slice for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application. Through the above method, the present invention reduces the difficulty and cost of terminal transformation, accelerates end-to-end maturity and large-scale commercial use of network slices, and reduces the difficulty of deploying slices on terminals.

Description

A network slice selection method, mobility management functional entity and terminal

technical field

The present invention relates to the field of communication technology, in particular to a method for selecting network slices, a mobility management functional entity and a terminal.

Background technique

The 5G (fifth generation mobile communication technology) era introduces network slicing. Network slicing is to logically divide the operator's network and logically isolate resources and services. Different levels of business data can be transmitted on network slices at different logical levels. Meet the differentiated requirements of different business scenarios for network data transmission rate, security, and reliability.

The existing terminal operating systems and terminal devices select network slices for apps (applications) through the terminal routing selection policy URSP, and the support is not perfect. Some terminals and chips currently do not support URSP, cannot support multi-slice function, and can only support a single slice; in order to support multi-slice, some terminals manually set the app and DNN (data network name) to bind, through different DNN chooses different slices, but the configuration is complex and the customer perception is poor; some terminals bind different apps with different slice identifiers through prefabrication, and hardcode them on the terminal, which is inflexible and does not support modification.

Currently, terminals do not have the ability to support URSP. The problem that terminals do not support multiple slices or the ability to support multiple slices is insufficient has become one of the obstacles to large-scale commercial use of network slices. In particular, 5G is oriented to vertical industries, and multiple slices per terminal is a basic requirement. Under the existing technical solutions, limited by terminal capabilities, business development and network slicing promotion are affected. For example, it is difficult to transform existing terminals to support multiple slices. and cost huge.

Contents of the invention

In view of the above problems, embodiments of the present invention are proposed to provide a network slice selection method, a mobility management functional entity, and a terminal that overcome the above problems or at least partially solve the above problems.

According to an aspect of an embodiment of the present invention, a method for selecting a network slice is provided, which is applied to an access and mobility management functional entity AMF, including:

Obtain the routing policy URSP information of the terminal;

receiving the description information of the first application sent by the terminal;

Select a first target network slice for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application.

According to another aspect of the embodiments of the present invention, a method for selecting a network slice is provided, which is applied to a terminal, including:

sending the description information of the first application to the access and mobility management functional entity AMF;

receiving the first target network slice selected by the AMF for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application.

According to still another aspect of the embodiments of the present invention, an access and mobility management functional entity AMF is provided, including:

The receiving module is used to obtain the routing policy URSP information of the terminal; receive the description information of the first application sent by the terminal;

A processing module, configured to select a first target network slice for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application.

According to still another aspect of the embodiments of the present invention, a terminal is provided, including:

A sending module, configured to send description information of the first application to the access and mobility management functional entity AMF;

The receiving module is configured to receive the first target network slice selected by the AMF for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application.

According to still another aspect of the embodiments of the present invention, a computing device is provided, including: a processor, a memory, a communication interface, and a communication bus, and the processor, the memory, and the communication interface complete the mutual communication via the communication bus. communication between

The memory is used to store at least one executable instruction, and the executable instruction causes the processor to execute the operation corresponding to the above network slice selection method.

According to still another aspect of the embodiments of the present invention, a computer storage medium is provided, and at least one executable instruction is stored in the storage medium, and the executable instruction causes the processor to perform operations corresponding to the above-mentioned network slice selection method .

According to the solution provided by the above-mentioned embodiments of the present invention, the network slice selection method can be obtained by obtaining the terminal's routing selection policy URSP information; receiving the description information of the first application sent by the terminal; according to the terminal's routing selection policy URSP policy information and the The description information of the first application is used to select the first target network slice for the first application, thereby solving the problem in the prior art that the terminal does not support multiple slices or the ability to support multiple slices is not enough, and achieves a reduction in terminal The difficulty and cost of transformation, the beneficial effect of accelerating the end-to-end maturity and large-scale commercial use of network slicing, and reducing the difficulty of deploying slices on terminals.

The above description is only an overview of the technical solutions of the embodiments of the present invention. In order to better understand the technical means of the embodiments of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and The advantages can be more obvious and understandable, and the specific implementation manners of the embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered as limiting the embodiments of the present invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

FIG. 1 shows a flowchart of a method for selecting a network slice applied to an access and mobility management functional entity AMF provided by an embodiment of the present invention;

FIG. 2 shows a flowchart of a method for selecting a network slice applied to a terminal provided by another embodiment of the present invention;

Fig. 3 shows a schematic structural diagram of an access and mobility management functional entity AMF provided by another embodiment of the present invention;

FIG. 4 shows a schematic structural diagram of a terminal provided by another embodiment of the present invention;

Fig. 5 shows a schematic structural diagram of a computing device provided by an embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

Fig. 1 shows a flowchart of a method for selecting a network slice provided by an embodiment of the present invention. As shown in Figure 1, applied to the access and mobility management functional entity AMF, the method includes the following steps:

Step 11, obtaining the routing policy URSP information of the terminal;

Step 12, receiving the description information of the first application sent by the terminal;

Step 13: Select a first target network slice for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application.

In this embodiment, the AMF receives the URSP information of the terminal, receives the description information of the first application sent by the terminal, and selects the first target network slice for the first application by the AMF. Realizing the selection of network slices on the network side reduces the difficulty and cost of terminal transformation, accelerates the end-to-end maturity and large-scale commercial use of network slices, and reduces the difficulty of slice deployment on terminals.

In an optional embodiment of the present invention, step 11 includes:

Step 111, interacting with a terminal that does not support the URSP selection slice capability, and completing the registration of the terminal;

Step 112, acquire the URSP information of the terminal from the policy control function PCF.

In this embodiment, the interaction process between the AMF and the terminal that does not support the URSP selection slice capability preferably includes:

Step 1111, the terminal initiates a registration process request message in the 5G (fifth generation mobile communication technology) network, the registration process request message carries a first parameter, and the first parameter is used to indicate that the terminal does not support the URSP selection slice capability; where , 5G (fifth generation mobile communication technology) network includes AMF, old AMF (original access and mobility management functional entity), NSSF (network slice selection functional entity), AUSF (authentication service function)/UDM (unified data Management entity)/UDR (Unified Data Repository) and PCF (Policy Control Function entity)/UDR at least one;

Step 1112, AMF receives and saves the registration process request message sent by the terminal;

Step 1113, AMF performs signaling interaction with old AMF, NSSF, AUSF/UDM/UDR and PCF/UDR in the 5G (fifth generation mobile communication technology) network, and completes the terminal registration process;

Step 1114, the AMF sends a registration process acceptance message to the terminal, wherein the registration process acceptance message includes the information of Allowed NSSAI, and the information of the allowed slice sets a default network slice for the application of the slice to be selected by the terminal.

After the AMF interacts with the terminal and completes the registration, the AMF sends a terminal policy association establishment request to the PCF, and the PCF sends the URSP information of the terminal to the AMF, and the AMF determines the AMF according to the registration process request message carrying the first parameter saved in the terminal registration process. The URSP information is not sent to the terminal, but the URSP information of the terminal is saved in the AMF.

In an optional embodiment of the present invention, step 12 includes:

Step 121, receiving the protocol data unit PDU session establishment request initiated by the first application of the terminal using the default network slice; the PDU session establishment request carries the description information of the first application, and the default network slice is the obtained during the registration process.

In this embodiment, since the terminal does not support URSP to select a slice, the terminal selects a default network slice for the first application during the registration process, and then initiates a PDU session establishment request; the terminal sends a PDU session establishment request to the AMF, and the PDU session establishment request contains carry the description information of the first application, the description information includes at least one of the following:

Application name, application identification number (appid), application access Internet Protocol (IP) address, application access port number, application access upper layer protocol protocol number, application access destination domain name (FQDN) and application The provided Data Network Name (DNN).

In an optional embodiment of the present invention, step 13 includes:

Step 131, according to the description information of the first application, according to the URSP policy information, select a first network slice for the first application of the terminal; if the default network slice is the same as the first network slice, determine the A default network slice is used as the first target network slice;

Step 132, if the default network slice is different from the first network slice, determine the first network slice as the first target network slice.

In this embodiment, after the AMF receives the PDU session establishment request sent by the terminal, first, according to the first description information of the first application carried in the PDU session establishment request, according to the URSP policy information, the URSP policy according to the policy Match the priority, select the first network slice for the first application; judge the first network slice and the default network slice of the first application:

If the first network slice is the same as the default network slice, then determine the default network slice as the first target network slice, and the AMF continues to execute the PDU session establishment process according to the first target network slice;

If the first network slice is different from the default network slice, the first network slice is determined as the first target network slice, and the AMF continues to execute the PDU session establishment process according to the first target network slice. In an optional embodiment of the present invention, after step 132, it also includes:

Step 133: Perform protocol data unit PDU session establishment of the first application according to the first target network slice.

In this embodiment, executing the PDU session establishment of the first application may optionally include:

Step 1331, the AMF sends a PDU session management context creation request to the SMF, and the PDU session management context creation request carries the first target network slice;

Step 1332, the SMF sends an N1N2 information transfer message to the AMF, and the N1N2 information transfer message carries the first target network slice;

Step 1333, the AMF sends the PDU session response message of N2 to the base station, and the PDU session response message of N2 carries the first target network slice;

Step 1334, the base station selects a network slice for the first application according to the first target network slice, performs resource allocation, and forwards a PDU session establishment acceptance message at the NAS layer to the terminal, the PDU session establishment acceptance message carrying the first target network slice;

Step 1335: After receiving the PDU session establishment acceptance message, the terminal uses the first target network slice carried in it as the network slice of the first PDU session, and the first application can send and receive data through the first PDU session.

In an optional embodiment of the present invention, in the process of the first application sending and receiving data according to the PDU session, it also includes:

Step 14, receiving the description information of the second application sent by the terminal;

Step 15: Select a second target network slice for the second application according to the routing selection policy URSP policy information of the terminal and the description information of the second application.

Multiple applications can be installed on the terminal in this embodiment, and the second application is an application that initiates a service after the first application selects the first target network slice; AMF receives the description information of the second application sent by the terminal, and Select the policy URSP policy information and the description information of the second application, and select the second target network slice for the second application.

In an optional embodiment of the present invention, step 14 includes: step 141, receiving the protocol data unit PDU session establishment request initiated by the second application of the terminal using the default network slice; the PDU session establishment request carries the second application The description information of the default network slice is obtained by the terminal during the registration process.

In this embodiment, since the terminal does not support URSP to select a slice, the terminal selects a default network slice for the second application during the registration process, and then initiates a PDU session establishment request; the terminal sends a PDU session establishment request to the AMF, and the PDU session establishment request contains carry the description information of the second application, and the description information includes at least one of the following:

Application name, application identification number (appid), application access Internet Protocol (IP) address, application access port number, application access upper layer protocol protocol number, application access destination domain name (FQDN) and application The provided Data Network Name (DNN).

In an optional embodiment of the present invention, step 15 includes:

Step 151, according to the description information of the second application, according to the URSP policy information, select a second network slice for the second application of the terminal, and check the network slice used by the existing PDU session of the terminal;

Step 152, if the second network slice is the same as the first target network slice, send a message rejecting the establishment of the second PDU session to the terminal, instructing the terminal to use the PDU session of the first target network slice;

Step 153, if the second network slice is different from the first target network slice, and the default network slice is the same as the second network slice, determine the default network slice as the second target network slice;

Step 154: If the second network slice is different from the first target network slice, and the second network slice is different from the default network slice, determine the second network slice as the second target network slice.

In this embodiment, the AMF receives the PDU session establishment request of the second PDU session sent by the terminal, and the PDU session establishment request carries the description information of the second application, matches the URSP policy according to the priority of the policy, and is the second application Select the second network slice; judge the second network slice with the default network slice of the second application and the first target network slice of the first application respectively:

If the second network slice is the same as the first target network slice, the AMF sends a rejection PDU session establishment message to the terminal, refusing to establish the second PDU session of the terminal, and the rejection PDU session establishment message is used to instruct the terminal to use an existing PDU session transmitting data, that is, instructing the terminal to send and receive data for the second application on the existing first PDU session;

If the second network slice is different from the first target network slice, and the default network slice is the same as the second network slice, then determine the default network slice in the second PDU session as the second target network slice, and AMF continues to execute according to the second target network slice PDU session establishment process;

If the second network slice is different from the first target network slice, and the default network slice is different from the second network slice, then the second network slice is determined as the second target network slice in the second PDU session, and AMF continues according to the second target network slice Execute the PDU session establishment process.

In an optional embodiment of the present invention, after selecting the second target network slice for the second application, the method further includes:

Step 16, according to the second target network slice, perform protocol data unit PDU session establishment of the second application.

In this embodiment, the execution of the PDU session establishment of the second application may optionally include:

Step 1331, the AMF sends a PDU session management context creation request to the SMF, and the PDU session management context creation request carries a second target network slice;

Step 1332, the SMF sends an N1N2 information transfer message to the AMF, and the N1N2 information transfer message carries the second target network slice;

Step 1333, the AMF sends the PDU session response message of N2 to the base station, and the PDU session response message of N2 carries the second target network slice;

Step 1334, the base station selects a network slice for the second application according to the second target network slice, performs resource allocation, and forwards a PDU session establishment acceptance message at the NAS layer to the terminal, the PDU session establishment acceptance message carrying the second target network slice;

Step 1335: After receiving the PDU session establishment acceptance message, the terminal uses the second target network slice carried in it as the network slice of the second PDU session, and the second application can send and receive data through the second PDU session.

It should be noted that if the terminal also includes the nth application, which is the application that initiates the service after the second application selects the second target network slice, the method is the same as the method for the second application to select the second target network slice, including :

Step 1, the terminal establishes the nth PDU session for the default network slice selected by the nth application;

Step 2, the terminal sends a PDU session establishment request to the AMF, and the PDU session establishment request carries description information of the nth application;

Step 3, AMF selects the nth network slice for the nth application according to the description information of the nth application and combined with the URSP information;

Step 4, if the selected nth network slice is the same as at least one network slice selected by the existing application, the AMF rejects the establishment of the nth PDU session, and instructs the terminal to send and receive data on the PDU session bearer of the existing application;

If the selected nth network slice is different from the default network slice, and the nth network slice selected by AMF for the nth application is different from all network slices selected by existing applications, then AMF uses the selected nth network slice instead of the original default Network slicing, and execute the subsequent PDU session establishment process to establish PDU session bearer;

Otherwise, establish a PDU session bearer for the nth application through the default network slice.

In the embodiment of the present invention, by acquiring the routing policy URSP information of the terminal; receiving the description information of the first application sent by the terminal; according to the routing selection policy URSP policy information of the terminal and the description information of the first application, the The first application selects the first target network slice; it reduces the difficulty and cost of terminal transformation, accelerates the end-to-end maturity and large-scale commercial use of network slices, and reduces the difficulty of deploying slices on terminals.

Fig. 2 shows a flowchart of a method for selecting a network slice applied to a terminal provided by another embodiment of the present invention. As shown in Figure 2, applied to a terminal, the method includes the following steps:

Step 21, sending the description information of the first application to the access and mobility management functional entity AMF;

Step 22: Receive the first target network slice selected by the AMF for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application.

Optionally, obtain the routing policy URSP information of the terminal, including:

Interact with a terminal that does not support the URSP selection slice capability, and complete the registration of the terminal;

Obtain the URSP information of the terminal from the policy control function PCF.

Optionally, the description information of the first application sent by the receiving terminal includes:

The protocol data unit PDU session establishment request initiated by the first application of the receiving terminal using the default network slice; the PDU session establishment request carries the description information of the first application, and the default network slice is the terminal during the registration process acquired.

Optionally, selecting a first target network slice for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application includes:

According to the description information of the first application, according to the URSP policy information, select a first network slice for the first application of the terminal; if the default network slice is the same as the first network slice, determine the default network slice as the first target network slice;

If the default network slice is different from the first network slice, determine the first network slice as the first target network slice.

Optionally, after selecting the first target network slice for the first application, the method further includes:

Perform protocol data unit PDU session establishment of the first application according to the first target network slice.

Optionally, in the process of the first application sending and receiving data according to the PDU session, it also includes:

receiving the description information of the second application sent by the terminal;

Select a second target network slice for the second application according to the routing selection policy URSP policy information of the terminal and the description information of the second application.

Optionally, receiving the description information of the second application sent by the terminal includes:

The protocol data unit PDU session establishment request initiated by the second application of the receiving terminal using the default network slice; the PDU session establishment request carries the description information of the second application, and the default network slice is the terminal during the registration process acquired.

Optionally, selecting a second target network slice for the second application according to the routing selection policy URSP policy information of the terminal and the description information of the second application includes:

Selecting a second network slice for the second application of the terminal according to the description information of the second application and according to the URSP policy information;

If the second network slice is the same as the first target network slice, sending a message rejecting the establishment of the second PDU session to the terminal, instructing the terminal to use the existing PDU session of the first target network slice;

If the second network slice is different from the first target network slice, and the second network slice is the same as the default network slice, then determine the default network slice as the second target network slice;

If the second network slice is different from the first target network slice, and the second network slice is different from the default network slice, then determine the second network slice as the second target network slice.

Optionally, after selecting the second target network slice for the second application, the method further includes:

Perform protocol data unit PDU session establishment of the second application according to the second target network slice.

It should be noted that the selection method of the network slice on the terminal side is a method corresponding to the above-mentioned embodiment of the selection method of the network slice on the AMF side of the access and mobility management functional entity, and all the implementation methods in the above-mentioned method embodiments are applicable to In the embodiment of the method for selecting a network slice at the terminal side, the same technical effect can also be achieved.

Fig. 3 shows a schematic structural diagram of an access and mobility management functional entity AMF provided by another embodiment of the present invention. As shown in Figure 3, the present invention also provides an access and mobility management functional entity 30, including:

The receiving module 31 is configured to acquire the routing policy URSP information of the terminal; receive the description information of the first application sent by the terminal;

The processing module 32 is configured to select a first target network slice for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application.

Optionally, obtain the routing policy URSP information of the terminal, including:

Interact with a terminal that does not support the URSP selection slice capability, and complete the registration of the terminal;

Obtain the URSP information of the terminal from the policy control function PCF.

Optionally, the description information of the first application sent by the receiving terminal includes:

receiving a protocol data unit PDU session establishment request initiated by the first application of the terminal using a default network slice; acquired.

Optionally, selecting a first target network slice for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application includes:

According to the description information of the first application, according to the URSP policy information, select a first network slice for the first application of the terminal; if the default network slice is the same as the first network slice, determine the default network slice as the first target network slice;

If the default network slice is different from the first network slice, determine the first network slice as the first target network slice.

Optionally, after selecting the first target network slice for the first application, the method further includes:

Perform protocol data unit PDU session establishment of the first application according to the first target network slice.

Optionally, in the process of the first application sending and receiving data according to the PDU session, it also includes:

receiving the description information of the second application sent by the terminal;

Select a second target network slice for the second application according to the routing selection policy URSP policy information of the terminal and the description information of the second application.

Optionally, receiving the description information of the second application sent by the terminal includes:

The protocol data unit PDU session establishment request initiated by the second application of the receiving terminal using the default network slice; the PDU session establishment request carries the description information of the second application, and the default network slice is the terminal during the registration process acquired.

Optionally, selecting a second target network slice for the second application according to the routing selection policy URSP policy information of the terminal and the description information of the second application includes:

Selecting a second network slice for the second application of the terminal according to the description information of the second application and according to the URSP policy information;

If the second network slice is the same as the first target network slice, sending a message rejecting the establishment of the second PDU session to the terminal, instructing the terminal to use the PDU session of the first target network slice;

If the second network slice is different from the first target network slice, and the second network slice is the same as the default network slice, determining the default network slice as the second target network slice;

If the second network slice is different from the first target network slice, and the second network slice is different from the default network slice, determine the second network slice as the second target network slice.

Optionally, after selecting the second target network slice for the second application, the method further includes:

Perform protocol data unit PDU session establishment of the second application according to the second target network slice.

It should be noted that the access and mobility management functional entity AMF is the access and mobility management functional entity AMF corresponding to the above-mentioned network slice selection method embodiment, and all the implementation methods in the above-mentioned method embodiments are applicable to this access In the embodiment of the mobile management function entity AMF, the same technical effect can also be achieved.

Fig. 4 shows a schematic structural diagram of a terminal provided by another embodiment of the present invention. As shown in FIG. 4, the present invention also provides a terminal 40, including:

A sending module 41, configured to send description information of the first application to the access and mobility management functional entity AMF;

The receiving module 42 is configured to receive the first target network slice selected by the AMF for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application.

Optionally, obtain the routing policy URSP information of the terminal, including:

Interact with a terminal that does not support the URSP selection slice capability, and complete the registration of the terminal;

Obtain the URSP information of the terminal from the policy control function PCF.

Optionally, the description information of the first application sent by the receiving terminal includes:

receiving a protocol data unit PDU session establishment request initiated by the first application of the terminal using a default network slice; acquired.

Optionally, selecting a first target network slice for the first application according to the routing selection policy URSP policy information of the terminal and the description information of the first application includes:

According to the description information of the first application, according to the URSP policy information, select a first network slice for the first application of the terminal; if the default network slice is the same as the first network slice, determine the default network slice as the first target network slice;

If the default network slice is different from the first network slice, determine the first network slice as the first target network slice.

Optionally, after selecting the first target network slice for the first application, the method further includes:

Perform protocol data unit PDU session establishment of the first application according to the first target network slice.

Optionally, in the process of the first application sending and receiving data according to the PDU session, it also includes:

receiving the description information of the second application sent by the terminal;

Select a second target network slice for the second application according to the routing selection policy URSP policy information of the terminal and the description information of the second application.

Optionally, receiving the description information of the second application sent by the terminal includes:

The protocol data unit PDU session establishment request initiated by the second application of the receiving terminal using the default network slice; the PDU session establishment request carries the description information of the second application, and the default network slice is the terminal during the registration process acquired.

Optionally, selecting a second target network slice for the second application according to the routing selection policy URSP policy information of the terminal and the description information of the second application includes:

Selecting a second network slice for the second application of the terminal according to the description information of the second application and according to the URSP policy information;

If the second network slice is the same as the first target network slice, sending a message rejecting the establishment of the second PDU session to the terminal, instructing the terminal to use the PDU session of the first target network slice;

If the second network slice is different from the first target network slice, and the second network slice is the same as the default network slice, determining the default network slice as the second target network slice;

If the second network slice is different from the first target network slice, and the second network slice is different from the default network slice, determine the second network slice as the second target network slice.

Optionally, after selecting the second target network slice for the second application, the method further includes:

Perform protocol data unit PDU session establishment of the second application according to the second target network slice.

It should be noted that this terminal is the terminal 40 corresponding to the above-mentioned embodiment of the method for selecting network slices on the terminal side, and all the implementation methods in the above-mentioned method embodiments are applicable to this embodiment of the terminal, and the same technology can also be achieved. Effect.

An embodiment of the present invention provides a non-volatile computer storage medium, the computer storage medium stores at least one executable instruction, and the computer executable instruction can execute the method for selecting a network slice in any of the above method embodiments.

FIG. 5 shows a schematic structural diagram of a computing device provided by an embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the computing device.

As shown in FIG. 5 , the computing device may include: a processor (processor), a communication interface (Communications Interface), a memory (memory), and a communication bus.

Wherein: the processor, the communication interface, and the memory complete the mutual communication through the communication bus. The communication interface is used to communicate with network elements of other devices such as clients or other servers. The processor is configured to execute the program, and specifically may execute the relevant steps in the above embodiment of the method for selecting a network slice for a computing device.

Specifically, the program may include program code including computer operation instructions.

The processor may be a central processing unit CPU, or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present invention. The one or more processors included in the computing device may be of the same type, such as one or more CPUs, or may be of different types, such as one or more CPUs and one or more ASICs.

Memory for storing programs. The memory may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

The program may specifically be used to enable the processor to execute the method for selecting a network slice in any of the foregoing method embodiments. For the specific implementation of each step in the program, refer to the corresponding descriptions in the corresponding steps and units in the above embodiment of the network slice selection method, and details are not repeated here. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described devices and modules can refer to the corresponding process description in the foregoing method embodiments, and details are not repeated here.

The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other device. Various generic systems can also be used with the teachings based on this. The structure required to construct such a system is apparent from the above description. Furthermore, embodiments of the present invention are not directed to any particular programming language. It should be understood that various programming languages can be used to implement the contents of the embodiments of the present invention described herein, and the above description of specific languages is for disclosing the best implementation mode of the embodiments of the present invention.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be understood that in the above description of the exemplary embodiments of the present invention, various features of the embodiments of the present invention are sometimes grouped together in order to simplify the embodiments of the present invention and facilitate understanding of one or more of the various inventive aspects. in a single embodiment, figure, or description thereof. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed embodiments of the invention require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. And form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all functions of some or all components according to the embodiments of the present invention. Embodiments of the present invention can also be implemented as a device or apparatus program (eg, computer program and computer program product) for performing a part or all of the methods described herein. Such a program implementing an embodiment of the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. Embodiments of the invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be construed as limiting the execution sequence.

Claims (10)

1. A method for selecting network slices is applied to an access and mobility management function (AMF), and comprises the following steps:

acquiring routing strategy URSP information of a terminal;

receiving description information of a first application sent by a terminal;

and selecting a first target network slice for the first application according to the routing strategy URSP strategy information of the terminal and the description information of the first application.

2. The method of claim 1, wherein obtaining routing policy URSP information of the terminal comprises:

interacting with a terminal which does not support URSP slice selection capability to complete the registration of the terminal;

and acquiring URSP information of the terminal from a policy control function PCF.

3. The method of claim 1, wherein receiving the description information of the first application sent by the terminal comprises:

receiving a Protocol Data Unit (PDU) session establishment request initiated by a first application of a terminal by using a default network slice; the PDU session establishment request carries description information of the first application, and the default network slice is obtained by the terminal in the registration process.

4. The method of claim 3, wherein selecting the first target network slice for the first application according to the routing policy URSP policy information of the terminal and the description information of the first application comprises:

selecting a first network slice for the first application of the terminal according to the description information of the first application and the URSP strategy information; if the default network slice is the same as the first network slice, determining the default network slice as the first target network slice;

determining the first network slice as the first target network slice if the default network slice is different from the first network slice.

5. The method of claim 1, wherein selecting the first target network slice for the first application further comprises:

and executing Protocol Data Unit (PDU) session establishment of the first application according to the first target network slice.

6. The method for selecting a network slice according to claim 5, wherein during the process of the first application transceiving data according to the PDU session, the method further comprises:

receiving description information of a second application sent by a terminal;

selecting a second target network slice for the second application according to the routing strategy URSP strategy information of the terminal and the description information of the second application;

if the second network slice is the same as the first target network slice, sending a message for rejecting establishment of a second PDU session to the terminal, and indicating the terminal to use the existing PDU session of the first target network slice;

if the second network slice is different from the first target network slice and the second network slice is the same as the default network slice, determining the default network slice as a second target network slice;

determining the second network slice as a second target network slice if the second network slice is different from the first target network slice and the second network slice is different from the default network slice.

7. A method for selecting a network slice is applied to a terminal, and comprises the following steps:

sending description information of a first application to an access and mobility management function (AMF);

and receiving a first target network slice selected for the first application by the AMF according to the routing strategy URSP strategy information of the terminal and the description information of the first application.

8. An access and mobility management function, AMF, comprising:

the receiving module is used for acquiring routing strategy URSP information of the terminal; receiving description information of a first application sent by a terminal;

and the processing module is used for selecting a first target network slice for the first application according to the routing policy URSP policy information of the terminal and the description information of the first application.

9. A terminal, comprising:

the sending module is used for sending the description information of the first application to an access and mobile management function entity AMF;

a receiving module, configured to receive a first target network slice selected by the AMF for the first application according to the routing policy URSP policy information of the terminal and the description information of the first application.

10. A computer storage medium having stored therein at least one executable instruction for causing a processor to perform operations corresponding to the method of selecting a network slice of any one of claims 1-7.

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