CN117793838A - Virtual network group topology management method, NEF entity, communication system and storage medium - Google Patents
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Abstract
The disclosure provides a virtual network group topology management method, a NEF entity, a communication system and a storage medium, and relates to the field of communication. The virtual network group topology management method comprises the following steps: after receiving a first service request sent by an AF entity through a first signaling, extracting virtual network group service area information from the first service request; mapping or converting the virtual network group service area information by utilizing the network pre-configuration information to obtain topology structure information of functional entities in the virtual network group; and sending a second service request to the UDM entity through second signaling, wherein the second service request comprises topology information so as to store the topology information into the UDM entity.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a virtual network group topology management method, a NEF (Network Exposure Function, network open function) entity, a communication system, and a storage medium.
Background
R16 of 3GPP (3 rd Generation Partnership Project, third generation partnership project) has new characteristics to support 5G LAN (Local Area Network ). The 5G LAN can communicate in various ways by designating a group of terminals subscribing to the same slice and DNN (Data Network Name ) as a 5G VN (Virtual Network) group.
Disclosure of Invention
The inventors have noted that in the related art, one 5G VN group can be controlled only by one SMF (Session Management, session management function) entity. For a scenario that spans multiple SMF entities, for example, M SMF entities and N UPF (User Plane Function ) entities are involved, if the SMF entities or the UPF entities are connected through a full network, when the coverage area of the 5G VN group is large, M (M-1)/2 connections are formed between the SMF entities, N (N-1)/2N 19 tunnels are formed between the UPF entities, and as M, N increases, network complexity increases, which is unfavorable for network management of operators.
Accordingly, the present disclosure provides a topology management scheme for a virtual network group, by storing topology information of functional entities in a VN group as subscription information together with other group data into a UDM (Unified Data Management ) entity, so that when a 5G VN user initiates a session establishment request, an SMF entity can determine a topology structure according to the subscription data, which solves the problem that when the coverage area of the 5G VN group is large, the number of SMF entities or UPF entities is large, resulting in an excessively complex network.
According to a first aspect of an embodiment of the present disclosure, there is provided a virtual network group topology management method, performed by a network opening function NEF entity, including: after receiving a first service request sent by an application function AF entity through a first signaling, extracting virtual network group service area information from the first service request; mapping or converting the virtual network group service area information by utilizing network pre-configuration information to obtain topology structure information of functional entities in the virtual network group; and sending a second service request to a Unified Data Management (UDM) entity through a second signaling, wherein the second service request comprises the topology information so as to store the topology information into the UDM entity.
In some embodiments, the functional entity comprises at least one of a session management function, SMF, entity and a user plane function, UPF, entity.
In some embodiments, the first signaling comprises nnef_parameter provision_create request signaling or nnef_ Parameter Provision _update request signaling; the second signaling includes nudm_parameter provision_create request signaling or nudm_ Parameter Provision _update request signaling.
In some embodiments, after receiving the storage confirmation information sent by the UDM entity through the third signaling, the storage confirmation information is sent to the AF entity through the fourth signaling.
In some embodiments, the third signaling comprises nudm_parameter provision_create response signaling or nudm_parameter provision_update response signaling; the fourth signaling includes an nnef_parameter_provision_create response signaling or an nnef_parameter_provision_update response signaling.
According to a second aspect of embodiments of the present disclosure, there is provided a virtual network open function, NEF, entity, comprising: the first processing module is configured to extract virtual network group service area information from a first service request sent by an application function AF entity after the first service request is received through a first signaling; the second processing module is configured to map or convert the virtual network group service area information by utilizing network pre-configuration information so as to obtain topology structure information of functional entities in the virtual network group; and a third processing module configured to send a second service request to a unified data management UDM entity through a second signaling, wherein the second service request includes the topology information, so as to store the topology information in the UDM entity.
In some embodiments, the functional entity comprises at least one of a session management function, SMF, entity and a user plane function, UPF, entity.
In some embodiments, the first signaling comprises nnef_parameter provision_create request signaling or nnef_parameter provision_update request signaling; the second signaling includes nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
In some embodiments, the third module is further configured to send the storage confirmation information to the AF entity through fourth signaling after receiving the storage confirmation information sent by the UDM entity through third signaling.
In some embodiments, the third signaling comprises nudm_parameter provision_create response signaling or nudm_parameter provision_update response signaling; the fourth signaling includes an nnef_parameter_provision_create response signaling or an nnef_parameter_provision_update response signaling.
According to a third aspect of embodiments of the present disclosure, there is provided a network open function, NEF, entity comprising: a memory configured to store instructions; a processor coupled to the memory, the processor configured to perform a method according to any of the embodiments described above based on instructions stored in the memory.
According to a fourth aspect of embodiments of the present disclosure, there is provided a communication system comprising: a NEF entity according to any of the embodiments above; an AF entity configured to send a first service request to the NEF entity through a first signaling, wherein the first service request includes virtual network group service area information; and the UDM entity is configured to store the topology structure information of the functional entities in the virtual network group included in the second service request after receiving the second service request sent by the NEF entity through a second signaling.
In some embodiments, the first signaling comprises nnef_parameter provision_create request signaling or nnef_parameter provision_update request signaling; the second signaling includes nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
In some embodiments, the UDM entity is configured to send a storage confirmation information to the NEF entity by third signaling after storing the topology information; and the AF entity receives the storage confirmation information sent by the NEF entity through a fourth signaling.
In some embodiments, the third signaling comprises nudm_parameter provision_create response signaling or nudm_parameter provision_update response signaling; the fourth signaling comprises an nnef_parameter provision_create response signaling or an nnef_parameter provision_update response signaling;
in some embodiments, the above system further comprises a unified data store, UDR, entity, wherein: the UDM entity is configured to send the topology information to the UDR entity by fifth signaling; the UDR entity is configured to store the topology information.
In some embodiments, the fifth signaling comprises nudr_dm_query signaling or nudr_dm_update signaling.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium, wherein the computer readable storage medium stores computer instructions which, when executed by a processor, implement a method as in any of the embodiments described above.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present disclosure, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a flow chart of a virtual network group topology management method according to an embodiment of the disclosure;
fig. 2 is a schematic structural diagram of a NEF entity according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a NEF entity according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a communication system according to another embodiment of the present disclosure;
fig. 6 is a flowchart illustrating a virtual network group topology management method according to another embodiment of the disclosure.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Fig. 1 is a flow chart illustrating a virtual network group topology management method according to an embodiment of the disclosure. In some embodiments, the following virtual network group topology management method is performed by the NEF entity.
In step 101, after receiving a first service request sent by an AF (Application Function ) entity through a first signaling, virtual network group service area information is extracted from the first service request.
In some embodiments, the first signaling comprises nnef_parameter provision_create request signaling or nnef_parameter provision_update request signaling.
In step 102, mapping or converting the service area information of the virtual network group by using the network pre-configuration information to obtain topology information of the functional entities in the virtual network group.
For example, the network pre-configuration information includes a pre-set selection of several topologies, such as star, star + mesh combinations, etc., where the default structure is a full mesh connection.
In some embodiments, the functional entity comprises at least one of an SMF entity and a UPF entity.
In step 103, a second service request is sent to the unified data management UDM entity by means of a second signaling, wherein the second service request includes topology information, so that the topology information is stored in the UDM entity.
In some embodiments, the second signaling comprises nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
In some embodiments, after receiving the storage confirmation information sent by the UDM entity through the third signaling, the storage confirmation information is sent to the AF entity through the fourth signaling.
For example, the third signaling includes a nudm_parameter provision_create response signaling or a nudm_parameter provision_update response signaling.
The fourth signaling includes an nnef_parameter_provision_create response signaling or an nnef_parameter_provision_update response signaling.
In the virtual network group topology management method provided by the embodiment of the present disclosure, the NEF entity maps or converts the virtual network group service area information to obtain topology information of the functional entities in the virtual network group, and further stores the topology information as subscription information together with other group data in the UDM entity, so that when the 5G VN user initiates a session establishment request, the SMF entity can determine the topology structure according to the subscription data, thereby solving the problem that when the coverage area of the 5G VN group is large, the number of SMF entities or UPF entities is large, which results in too complex network.
Fig. 2 is a schematic structural diagram of a NEF entity according to an embodiment of the present disclosure. As shown in fig. 2, the NEF entity comprises a first processing module 21, a second processing module 22 and a third processing module 23.
The first processing module 21 is configured to extract virtual network group service area information from the first service request after receiving the first service request sent by the AF entity through the first signaling.
In some embodiments, the first signaling comprises nnef_parameter provision_create request signaling or nnef_parameter provision_update request signaling.
The second processing module 22 is configured to map or convert the virtual network group service area information with the network pre-configuration information to obtain topology information of the functional entities in the virtual network group.
In some embodiments, the functional entity comprises at least one of an SMF entity and a UPF entity.
The third processing module 23 is configured to send a second service request to the UDM entity via a second signaling, wherein topology information is included in the second service request for storing the topology information in the UDM entity.
In some embodiments, the second signaling comprises nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
In some embodiments, the third module 23 is further configured to send the storage confirmation information to the AF entity via fourth signaling after receiving the storage confirmation information sent by the UDM entity via third signaling.
For example, the third signaling includes a nudm_parameter provision_create response signaling or a nudm_parameter provision_update response signaling.
The fourth signaling includes an nnef_parameter_provision_create response signaling or an nnef_parameter_provision_update response signaling.
Fig. 3 is a schematic structural diagram of a NEF entity according to another embodiment of the present disclosure. As shown in fig. 3, the NEF entity includes a memory 31 and a processor 32.
The memory 31 is for storing instructions and the processor 32 is coupled to the memory 31, the processor 32 being configured to perform a method as referred to in any of the embodiments of fig. 1 based on the instructions stored by the memory.
As shown in fig. 3, the NEF entity further comprises a communication interface 33 for information interaction with other devices. Meanwhile, the NEF entity further includes a bus 34, and the processor 32, the communication interface 33, and the memory 31 perform communication with each other through the bus 34.
The memory 31 may comprise a high-speed RAM memory or may further comprise a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 31 may also be a memory array. The memory 31 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 32 may be a central processing unit CPU, or may be an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement embodiments of the present disclosure.
The present disclosure also relates to a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement a method as referred to in any of the embodiments of fig. 1.
Fig. 4 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure. As shown in fig. 4, the communication system includes an AF entity 41, a NEF entity 42, and a UDM entity 43. The NEF entity 42 is a NEF entity referred to in any of the embodiments of fig. 2 or 3.
The AF entity 41 is configured to send a first service request to the NEF entity 42 through a first signaling, wherein the first service request includes virtual network group service area information.
In some embodiments, the first signaling comprises nnef_parameter provision_create request signaling or nnef_parameter provision_update request signaling.
The UDM entity 43 is configured to store topology information of the functional entities in the virtual network group included in the second service request after receiving the second service request sent by the NEF entity 42 through the second signaling.
In some embodiments, the second signaling comprises nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
In some embodiments, the functional entity includes at least one of an SMF entity and a UPF entity.
In some embodiments, the UDM entity 43 is configured to send the storage confirmation information to the NEF entity 42 by third signaling after storing the topology information. The AF entity 41 receives the storage confirmation information transmitted by the NEF entity 42 through the fourth signaling.
In some embodiments, the third signaling comprises nudm_parameter provision_create response signaling or nudm_parameter provision_update response signaling.
The fourth signaling includes an nnef_parameterProvisions_Create response signaling or an nnef_parameterProvisions_update response signaling;
fig. 5 is a schematic structural diagram of a communication system according to another embodiment of the present disclosure. Fig. 5 differs from fig. 4 in that in the embodiment shown in fig. 5 the communication system further comprises a UDR (Unified Data Repository, unified data storage) entity 44.
The UDM entity 43 is configured to send topology information to the UDR entity 44 by fifth signaling. The UDR entity 44 is configured to store topology information.
In some embodiments, the fifth signaling comprises nudr_dm_query signaling or nudr_dm_update signaling.
Fig. 6 is a flowchart illustrating a virtual network group topology management method according to another embodiment of the disclosure.
In step 601, the af entity sends a first service request to the NEF entity through a first signaling, where the first service request includes virtual network group service area information.
In some embodiments, the first signaling comprises nnef_parameter provision_create request signaling or nnef_parameter provision_update request signaling.
In step 602, the nef entity extracts virtual network group service area information from the first service request, and maps or converts the virtual network group service area information with the network pre-configuration information to obtain topology structure information of the SMF entity and the UPF entity in the virtual network group.
In step 603, the nef entity sends a second service request to the UDM entity through a second signaling, wherein the second service request includes the obtained topology information.
In some embodiments, the second signaling comprises nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
In step 604, the udm entity stores the received topology information.
In step 605, the udm entity sends the topology information to the UDR entity via a third signaling, so that the UDR entity stores the topology information.
In some embodiments, the third signaling comprises nudr_dm_query signaling or nudr_dm_update signaling.
In step 606, the udm entity sends the storage confirmation information to the NEF entity via fourth signaling.
In some embodiments, the fourth signaling comprises nudm_parameter provision_create response signaling or nudm_parameter provision_update response signaling.
In step 607, the nef entity transmits the storage confirmation information to the AF entity through the fifth signaling after receiving the storage confirmation information.
In some embodiments, the fifth signaling comprises nnef_parameter provision_create response signaling or nnef_parameter provision_update response signaling.
By implementing the above embodiment of the present disclosure, the NEF entity maps or converts the virtual network group service area information to obtain topology information of the SMF entity and the UPF entity in the virtual network group, and further stores the topology information as subscription information together with other group data into the UDM entity and the UDR entity, so that when the 5G VN user initiates the session establishment request, the SMF entity can determine the topology structure according to the subscription data, thereby solving the problem that when the coverage area of the 5G VN group is large, the number of SMF entities or UPF entities is large, which results in too complex network. In addition, because the topology structure information of the SMF entity and the UPF entity in the virtual network group is generated inside the NEF entity, the network configuration information can be effectively prevented from being exposed to a third party.
In some embodiments, the functional units described above may be implemented as general-purpose processors, programmable logic controllers (Programmable Logic Controller, abbreviated as PLCs), digital signal processors (Digital Signal Processor, abbreviated as DSPs), application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASICs), field programmable gate arrays (Field-Programmable Gate Array, abbreviated as FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof for performing the functions described in the present disclosure.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (18)
1. A virtual network group topology management method, performed by a network opening function, NEF, entity, comprising:
after receiving a first service request sent by an application function AF entity through a first signaling, extracting virtual network group service area information from the first service request;
mapping or converting the virtual network group service area information by utilizing network pre-configuration information to obtain topology structure information of functional entities in the virtual network group;
and sending a second service request to a Unified Data Management (UDM) entity through a second signaling, wherein the second service request comprises the topology information so as to store the topology information into the UDM entity.
2. The method of claim 1, wherein,
the functional entity comprises at least one of a session management function, SMF, entity and a user plane function, UPF, entity.
3. The method of claim 1, wherein,
the first signaling comprises an nnef_parameterProvisionCreate request signaling or an nnef_parameterProvisionUpdate request signaling;
the second signaling includes nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
4. A method according to any one of claims 1-3, further comprising:
and after receiving the storage confirmation information sent by the UDM entity through the third signaling, sending the storage confirmation information to the AF entity through the fourth signaling.
5. The method of claim 4, wherein,
the third signaling includes nudm_parameter provision_create response signaling or nudm_parameter provision_update response signaling;
the fourth signaling includes an nnef_parameter_provision_create response signaling or an nnef_parameter_provision_update response signaling.
6. A virtual network open function, NEF, entity comprising:
the first processing module is configured to extract virtual network group service area information from a first service request sent by an application function AF entity after the first service request is received through a first signaling;
the second processing module is configured to map or convert the virtual network group service area information by utilizing network pre-configuration information so as to obtain topology structure information of functional entities in the virtual network group;
and a third processing module configured to send a second service request to a unified data management UDM entity through a second signaling, wherein the second service request includes the topology information, so as to store the topology information in the UDM entity.
7. The NEF entity according to claim 6, wherein,
the functional entity comprises at least one of a session management function, SMF, entity and a user plane function, UPF, entity.
8. The NEF entity according to claim 6, wherein,
the first signaling comprises an nnef_parameterProvisionCreate request signaling or an nnef_parameterProvisionUpdate request signaling;
the second signaling includes nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
9. The NEF entity according to any one of claims 6-8, wherein,
the third module is further configured to send the storage confirmation information to the AF entity through fourth signaling after receiving the storage confirmation information sent by the UDM entity through third signaling.
10. The NEF entity according to claim 9, wherein,
the third signaling includes nudm_parameter provision_create response signaling or nudm_parameter provision_update response signaling;
the fourth signaling includes an nnef_parameter_provision_create response signaling or an nnef_parameter_provision_update response signaling.
11. A network open function, NEF, entity comprising:
a memory configured to store instructions;
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-5 based on instructions stored by the memory.
12. A communication system, comprising:
the NEF entity of any one of claims 6-11;
an AF entity configured to send a first service request to the NEF entity through a first signaling, wherein the first service request includes virtual network group service area information;
and the UDM entity is configured to store the topology structure information of the functional entities in the virtual network group included in the second service request after receiving the second service request sent by the NEF entity through a second signaling.
13. The system of claim 12, wherein,
the first signaling comprises an nnef_parameterProvisionCreate request signaling or an nnef_parameterProvisionUpdate request signaling;
the second signaling includes nudm_parameter provision_create request signaling or nudm_parameter provision_update request signaling.
14. The system of claim 12, wherein,
the UDM entity is configured to send storage confirmation information to the NEF entity through a third signaling after storing the topology information;
and the AF entity receives the storage confirmation information sent by the NEF entity through a fourth signaling.
15. The system of claim 14, wherein,
the third signaling includes nudm_parameter provision_create response signaling or nudm_parameter provision_update response signaling;
the fourth signaling includes an nnef_parameter_provision_create response signaling or an nnef_parameter_provision_update response signaling.
16. The system of any of claims 12-15, further comprising a unified data store, UDR, entity, wherein:
the UDM entity is configured to send the topology information to the UDR entity by fifth signaling;
the UDR entity is configured to store the topology information.
17. The system of claim 16, wherein,
the fifth signaling includes nudr_dm_query signaling or nudr_dm_update signaling.
18. A non-transitory computer readable storage medium storing computer instructions which, when executed by a processor, implement the method of any one of claims 1-5.
Priority Applications (2)
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|---|---|---|---|
| CN202211150882.0A CN117793838A (en) | 2022-09-21 | 2022-09-21 | Virtual network group topology management method, NEF entity, communication system and storage medium |
| PCT/CN2023/117467 WO2024061007A1 (en) | 2022-09-21 | 2023-09-07 | Virtual network group topology management method, nef entity, communication system, and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211150882.0A CN117793838A (en) | 2022-09-21 | 2022-09-21 | Virtual network group topology management method, NEF entity, communication system and storage medium |
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| CN111953576B (en) * | 2019-05-17 | 2021-07-09 | 华为技术有限公司 | Virtual network communication method, equipment and system |
| US20230232205A1 (en) * | 2019-08-09 | 2023-07-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for group-based network management |
| WO2021136636A1 (en) * | 2020-01-03 | 2021-07-08 | Nokia Technologies Oy | Grouping qos flow for user equipment to user equipment communications |
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