CN112448830B - Network slicing implementation method, entity and system - Google Patents
Network slicing implementation method, entity and system Download PDFInfo
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- CN112448830B CN112448830B CN201910814331.1A CN201910814331A CN112448830B CN 112448830 B CN112448830 B CN 112448830B CN 201910814331 A CN201910814331 A CN 201910814331A CN 112448830 B CN112448830 B CN 112448830B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0893—Assignment of logical groups to network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
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Abstract
The disclosure provides a network slice implementation method, an entity and a system, and relates to the field of mobile communication. The temporary network slice information is configured for the temporary application in the access and mobility management functional entity, the identification information of the temporary network slice is added into the allowed network slice information and is issued to the related target user together with the selection strategy of the temporary network slice, so that the temporary network slice service can be provided for the uncertain target user (or the temporary target user), the temporary application is supported, and the user experience is improved.
Description
Technical Field
The present disclosure relates to the field of mobile communications, and in particular, to a method, an entity, and a system for implementing network slicing.
Background
Fifth generation (5G) communication systems introduced the concept of network slicing. A network slice essentially divides a physical network that exists in reality into a plurality of virtual networks of different types on a logical level. Each network slice can have different mobility, safety, time delay and reliability, even a charging mode, and can better cope with complex and variable application scenes.
If a user wants to access a network slice, the user needs to sign the network slice in UDM (Unified Data Management) in advance, and also needs to determine URSP (UE Routing Selection Policy) in PCF (Policy Control Function) in advance. The URSP includes a plurality of NSSPs (Network Slice Selection Policy), and each NSSP is a corresponding relationship between an application and a Network Slice. The User Equipment (UE) will select which network slice to use for the application based on the NSSP in the URSP.
Disclosure of Invention
The inventor finds that the current network slice implementation mechanism needs the user to sign in advance, and is difficult to support temporary application. For example, the network slice corresponding to a temporary activity such as a conference, a concert, etc. has a short timeliness, and after the activity is finished, the network slice is deleted, and it is difficult for the current network slice implementation mechanism to sign a temporary network slice for an uncertain target user in advance.
The temporary network slice information is configured for the temporary application in the access and mobility management functional entity, the identification information of the temporary network slice is added into the allowed network slice information and is issued to the related target user together with the selection strategy of the temporary network slice, so that the temporary network slice service can be provided for the uncertain target user (or the temporary target user), the temporary application is supported, and the user experience is improved.
Some embodiments of the present disclosure provide a method for implementing network slicing, including:
an access and mobility management function (AMF) entity receives temporary network slice information configured for temporary application by network side equipment, wherein the temporary network slice information comprises identification information and a service area of a temporary network slice and a corresponding network slice selection strategy NSSP;
the AMF entity adds the identification information of the temporary network slice into allowed network slice information;
and the AMF entity sends network slice configuration information to a target user which is in a service area of the temporary network slice and meets preset conditions, wherein the network slice configuration information comprises the allowed network slice information and NSSP corresponding to the temporary network slice, so that the target user updates the locally stored allowed network slice information and user routing policy URSP according to the network slice configuration information.
In some embodiments, the network slice configuration information further includes an addition identifier of an NSSP, so that the target user adds the NSSP corresponding to the temporary network slice to the locally stored URSP according to the addition identifier of the NSSP.
In some embodiments, the network slice configuration information causes the target user to replace or add the allowed network slice information therein to locally stored allowed network slice information.
In some embodiments, when the target user is a user that is already registered and in a connected state within a service area of the temporary network slice, the AMF entity sends network slice configuration information to the target user through a configuration update request.
In some embodiments, when the target user is a new user who initiates registration within the service area of the temporary network slice, the AMF entity sends network slice configuration information to the target user through a registration reply message.
In some embodiments, the allowed network slice information in the network slice configuration information further includes identification information of a contracted network slice of the target user.
In some embodiments, the identification information of the temporary network slice selects assistance information for a single network slice of the temporary network slice.
Some embodiments of the present disclosure provide an access and mobility management function, AMF, entity, including: a memory; and a processor coupled to the memory, the processor configured to perform the network slice implementation of any of the embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure provide a network slice implementation system, including:
access and mobility management function, AMF, entity, and
and the user equipment is configured to update locally stored allowed network slice information and a user routing policy URSP according to the network slice configuration information sent by the AMF entity.
In some embodiments, the user equipment is configured to add the NSSP corresponding to the temporary network slice to the locally stored URSP according to the addition identifier of the NSSP in the network slice configuration information, and replace or add the allowed network slice information in the network slice configuration information with the locally stored allowed network slice information.
Some embodiments of the present disclosure propose a non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the network slice implementation method of any one of the embodiments.
Drawings
The drawings that will be used in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description, which proceeds with reference to the accompanying drawings,
it is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without undue inventive faculty.
Fig. 1 is a flow diagram illustrating some embodiments of a network slice implementation method of the present disclosure.
Fig. 2 is a flow diagram illustrating some embodiments of a network slice implementation method for registered users according to the present disclosure.
Fig. 3 is a flow diagram illustrating some embodiments of a network slice implementation method for unregistered new users according to the present disclosure.
Fig. 4 is a schematic diagram of some embodiments of a network slice implementation system of the present disclosure.
Fig. 5 is a schematic diagram of some embodiments of an AMF entity of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
Fig. 1 is a flow diagram illustrating some embodiments of a network slice implementation method of the present disclosure.
As shown in fig. 1, the method of this embodiment includes: steps 11-14.
At step 11, a temporary network slice is created and configured.
The network side device creates a temporary network slice for the temporary application, and configures temporary network slice information on an Access and Mobility Management Function (AMF) in a service area of the temporary network slice.
The temporary network slice information includes, for example: identification Information of the temporary Network Slice, such as S-NSSAI (Single Network Slice Selection Assistance Information ); service areas of temporary network slices, such as Tracking Areas (TAs); and the corresponding NSSP of the temporary network slice. Optionally, the temporary network slice information may further include: the NSSP adding identifier is used for instructing the user equipment to add the NSSP corresponding to the temporary network slice into the URSP; and temporary application information matched with the temporary network slice, such as triple information of the temporary application, namely a target IP address, a target port number, a protocol number and the like.
In step 12, the AMF entity adds identification information of the temporary network slice to Allowed network slice information, e.g., adds S-NSSAI of the temporary network slice to Allowed NSSAI (Allowed network slice selection assistance information).
In step 13, the AMF entity sends network slice configuration information to a target user in a service area of the temporary network slice and meeting a preset condition, where the network slice configuration information includes allowed network slice information and NSSP corresponding to the temporary network slice.
When the target user is a user which is registered in the service area of the temporary network slice and is in a connection state, the AMF entity sends network slice configuration information to the target user through a configuration updating request.
And when the target user is a new user initiating registration in the service area of the temporary network slice, the AMF entity sends network slice configuration information to the target user through a registration response message.
In addition, the allowed network slice information in the network slice configuration information may also optionally include identification information of a contracted network slice that the target user has contracted in advance.
In step 14, the target user updates the locally stored allowed network slice information and the user routing policy URSP according to the network slice configuration information.
The target user replaces or adds the allowed network slice information in the network slice configuration information to the locally stored allowed network slice information through the user equipment, adds the NSSP corresponding to the temporary network slice to the locally stored URSP according to the added identification (if the added identification of the NSSP) in the network slice configuration information, and can also configure the user equipment to directly add the NSSP corresponding to the temporary network slice to the locally stored URSP without replacing the NSSP in the locally stored URSP if the added identification of the NSSP does not exist.
Temporary network slice information is configured for temporary application in the access and mobility management functional entity, identification information of the temporary network slice is added into allowed network slice information and is issued to related target users together with a selection strategy of the temporary network slice, and temporary network slice service can be provided for uncertain target users (or temporary target users), so that the temporary application is supported, and user experience is improved.
Fig. 2 is a flow diagram illustrating some embodiments of a network slice implementation method for registered users according to the present disclosure.
As shown in fig. 2, the method of this embodiment includes:
in step 21, the user 1 initiates registration with the 5G network, successfully accesses the 5G network, and obtains Allowed NSSAI and URSP at the same time, where the URSP may be obtained before or sent by PCF (Policy Control Function) after the registration.
In step 22, the Network side device creates a temporary Network Slice for the temporary application, and configures temporary Network Slice Information on the AMF in the service area of the temporary Network Slice, where the configured Information includes identification Information of the temporary Network Slice, such as S-NSSAI (Single Network Slice Selection Assistance Information); service areas of temporary network slices, such as Tracking Areas (TAs); and NSSP corresponding to the temporary network slice.
In step 23, the AMF sends a configuration update request to the user equipment 1(UE1) of the user 1 which is already registered and in the connected state in the service area of the temporary network slice, wherein the configuration update request carries the Allowed NSSAI including the temporary network slice S-NSSAI and the NSSP and NSSP increment identifiers corresponding to the temporary network slice.
In step 24, the UE1 receives the configuration update request, and updates its locally stored Allowed NSSAI and URSP with the information therein. For example, the UE1 replaces its original Allowed NSSAI with the newly received Allowed NSSAI and adds the newly received NSSP to its original URSP.
At step 25, the UE1 returns a configuration update reply. If the answer indicates that the configuration update was successful, user 1 may use the temporary network slice service.
Fig. 3 is a flow diagram illustrating some embodiments of a network slice implementation method for unregistered new users according to the present disclosure.
As shown in fig. 3, the method of this embodiment includes:
in step 31, the Network side device creates a temporary Network Slice for the temporary application, and configures temporary Network Slice Information on the AMF in the service area of the temporary Network Slice, where the configured Information includes identification Information of the temporary Network Slice, such as S-NSSAI (Single Network Slice Selection Assistance Information); service areas of temporary network slices, such as Tracking Areas (TAs); and NSSP corresponding to the temporary network slice.
At step 32, user 2 within the temporary network slice service area initiates a registration request with his user equipment 2(UE2) to the AMF within the temporary network slice service area.
In step 33, the AMF generates Allowed NSSAI (including the S-NSSAI of the contracted network slice) according to the existing procedure of contracting the network slice, and because the S-NSSAI of the temporary network slice is not included in the S-NSSAI contracted by the user, the Allowed NSSAI generated according to the existing procedure does not include the S-NSSAI of the temporary network slice, and therefore, the S-NSSAI of the temporary network slice is added to the Allowed NSSAI.
The existing flow of Allowed NSSAI generation is implemented by interaction between AMF and NSSF (Network Slice Selection Function) entity, which may specifically refer to the prior art and is not described herein again.
In step 34, the AMF returns a registration response message carrying the Allowed NSSAI, the NSSP corresponding to the temporary network slice, and the incremented identity of the NSSP. Wherein the Allowed NSSAI comprises the S-NSSAI of the temporal network slice; the added identification of the NSSP indicates that the NSSP corresponding to the network slice should be newly added to the URSP instead of replacing the original NSSP in the URSP.
In step 35, the UE2 receives the registration reply message and updates its locally stored Allowed NSSAI and URSP with the information therein. For example, the UE2 replaces its original Allowed NSSAI with the newly received Allowed NSSAI and adds the newly received NSSP to its original URSP. Thereafter, user 2 may use the temporary network slicing service.
In some embodiments, if the temporary network slice information includes application information that the temporary network slice matches, the AMF entity may further send a subscription request of a user that matches the temporary network slice to a Session Management Function (SMF) entity, where the temporary network slice information is carried; the SMF entity generates a packet detection rule according to the application information matched with the temporary network slice and sends the packet detection rule to a User Plane Function (UPF) entity, and the SMF entity receives User information matched with the packet detection rule reported by the UPF entity so as to obtain the User information matched with the temporary network slice; the AMF entity receives a subscription response returned by the SMF entity, wherein the subscription response carries user information matched with the temporary network slice; and the AMF entity initiates a configuration updating process to the user matched with the temporary network slice so as to indicate the user to update the temporary network slice into a network slice allowing access, and indicate the user to add a network slice selection strategy representing the corresponding relation between the temporary network slice and the matched application thereof, so that the user can bear the matched application on the temporary network slice.
Fig. 4 is a schematic diagram of some embodiments of a network slice implementation system of the present disclosure.
As shown in fig. 4, the system of this embodiment includes: an AMF entity 41 and a user equipment 42.
The AMF entity 41 is configured to perform the network slice implementation method in any of the embodiments. For example, the AMF entity receives temporary network slice information configured by the network side device for the temporary application, including identification information and service area of the temporary network slice and corresponding NSSP and added identification (optional) of NSSP; the AMF entity adds the identification information of the temporary network slice into the allowed network slice information; and the AMF entity sends network slice configuration information to a target user which is in a service area of the temporary network slice and meets preset conditions, wherein the network slice configuration information comprises allowed network slice information and NSSP corresponding to the temporary network slice, so that the target user updates the locally stored allowed network slice information and user routing policy URSP according to the network slice configuration information.
The user equipment 42 is configured to update the locally stored allowed network slice information and the user routing policy URSP according to the network slice configuration information sent by the AMF entity. For example, the user equipment replaces or adds the allowed network slice information in the network slice configuration information to the locally stored allowed network slice information, and adds the NSSP corresponding to the temporary network slice to the locally stored URSP.
Fig. 5 is a schematic diagram of some embodiments of an AMF entity of the present disclosure.
As shown in fig. 5, the AMF entity 41 of this embodiment includes: a memory 411; and a processor 412 coupled to the memory 411, the processor 412 configured to execute the network slice implementation method of any of the embodiments based on instructions stored in the memory 411.
The memory 411 may include, for example, a system memory, a fixed nonvolatile storage medium, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), and other programs.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (11)
1. A network slice implementation method is characterized by comprising the following steps:
an access and mobility management function (AMF) entity receives temporary network slice information configured for temporary application by network side equipment, wherein the temporary network slice information comprises identification information and a service area of a temporary network slice and a corresponding network slice selection strategy NSSP;
the AMF entity adds the identification information of the temporary network slice into allowed network slice information;
and the AMF entity sends network slice configuration information to a target user which is in the service area of the temporary network slice and meets preset conditions, wherein the network slice configuration information comprises the allowed network slice information and NSSP corresponding to the temporary network slice, so that the target user updates the locally stored allowed network slice information and the user routing policy URSP according to the network slice configuration information.
2. The method of claim 1,
the network slice configuration information further includes an addition identifier of the NSSP, so that the target user adds the NSSP corresponding to the temporary network slice to the locally stored URSP according to the addition identifier of the NSSP.
3. The method of claim 1,
the network slice configuration information causes the target user to replace or add the allowed network slice information therein with locally stored allowed network slice information.
4. The method according to any one of claims 1 to 3,
and when the target user is a user which is registered in the service area of the temporary network slice and is in a connection state, the AMF entity sends network slice configuration information to the target user through a configuration updating request.
5. The method according to any one of claims 1 to 3,
and when the target user is a new user initiating registration in the service area of the temporary network slice, the AMF entity sends network slice configuration information to the target user through a registration response message.
6. The method according to any one of claims 1 to 3,
the allowed network slice information in the network slice configuration information further includes identification information of a contracted network slice of the target user.
7. The method according to any one of claims 1 to 3,
the identification information of the temporary network slice selects auxiliary information for a single network slice of the temporary network slice.
8. An access and mobility management function, AMF, entity, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the network slice implementation method of any of claims 1-7 based on instructions stored in the memory.
9. A network slice implementation system, comprising:
the access and mobility management function, AMF, entity of claim 8, and
and the user equipment is configured to update locally stored allowed network slice information and a user routing policy URSP according to the network slice configuration information sent by the AMF entity.
10. The system of claim 9,
the user equipment is configured to add the NSSP corresponding to the temporary network slice to the locally stored URSP according to the addition identifier of the NSSP in the network slice configuration information, and replace or add the allowed network slice information in the network slice configuration information to the locally stored allowed network slice information.
11. A non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the network slice implementation method of any one of claims 1-7.
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| CN115087071B (en) * | 2021-03-16 | 2024-01-30 | 中国联合网络通信集团有限公司 | Slice management method, user equipment and storage medium |
| WO2023010567A1 (en) * | 2021-08-06 | 2023-02-09 | 北京小米移动软件有限公司 | Method and apparatus for selecting network slice admission control function |
| KR20240042539A (en) * | 2021-08-20 | 2024-04-02 | 노키아 테크놀로지스 오와이 | Technique for providing temporary network slice services in communication systems |
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