Method and system for acquiring user radio status and nwdaf network element

Abstract

The present disclosure provides a method and system for obtaining a user wireless state and a NWDAF network element, and relates to the field of wireless communication. The method comprises the following steps: the NWDAF network element sends a request for obtaining a 5G-GUTI of a user to an AMF network element accessed by the user; the NWDAF network element receives the 5G-GUTI of the user sent by the AMF network element accessed by the user, which contains a TMSI of the user; the NWDAF network element sends a request for obtaining a wireless state of the user to a wireless network management system by using the TMSI of the user, so that the wireless network management system obtains the wireless state of the user based on the TMSI of the user; and the NWDAF network element receives the wireless state of the user sent by the wireless network management system. Thus, the implementation of OAM for obtaining the wireless state of the user is simplified, and the real-time performance of obtaining the wireless state of the user and the real-time performance of related analysis services are improved.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication, and in particular to a method and system for obtaining user wireless status and an NWDAF network element. Background Technology

[0002] The Network Data Analytics Function (NWDAF) is a core network element in the 5G core network that supports network intelligence. Its main function is to collect data from various Network Functions (NFs) and Operation Administration and Maintenance (OAM), providing various analytical services to these NFs and OAM. The NWDAF obtains the radio status of each user from the OAM and performs analysis services based on this status. Core network elements can then use the analytical services provided by the NWDAF to schedule and ensure the operation of users and services.

[0003] In some related technologies, the method by which NWDAF obtains the user's radio status from OAM includes: NWDAF using the user's IMSI (International Mobile Subscriber Identity) to send a request to OAM to obtain the user's radio status. This OAM involves radio network management systems such as OMC-R (Operation and Maintenance Center-Radio), core network management systems such as OMC-C (Operation and Maintenance Center-Core), and integrated network management systems such as integrated OMC. Specifically, OMC-C obtains the user's TMSI (Temporary Mobile Subscriber Identity) and other relevant information from core network elements based on the user's IMSI. OMC-R tracks the user's radio status in real time based on the user's TMSI. Integrated OMC associates the data from OMC-R and OMC-C based on the user's IMSI and TMSI to obtain the user's radio status, and then sends the user's IMSI and corresponding radio status to NWDAF, thus enabling the consumer NWDAF to obtain the user's radio status.

[0004] Research has revealed that the relevant technologies require the coordinated operation of multiple OAM-related devices, such as OMC-R, OMC-C, and integrated OMC, to provide users' wireless status to NWDAF. This is complex, requires significant modifications to the operation and management system, and has poor real-time performance, which is not conducive to the real-time scheduling and control of NWDAF. Summary of the Invention

[0005] In this embodiment, the NWDAF network element obtains the user's TMSI and uses the user's TMSI to obtain the user's wireless status from the wireless network management system. OAM only needs to use the wireless network management system and does not require the linkage of multiple OAM-related devices, which simplifies the implementation of OAM in obtaining the user's wireless status and improves the real-time performance of obtaining the user's wireless status and related analysis services.

[0006] This disclosure provides a method for obtaining a user's wireless status through several embodiments, including:

[0007] The NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI;

[0008] The NWDAF network element receives the user's 5G-GUTI sent by the AMF network element accessed by the user, which includes the user's TMSI;

[0009] The NWDAF network element uses the user's TMSI to send a request to the wireless network management system to obtain the user's wireless status;

[0010] The NWDAF network element receives the user's wireless status from the wireless network management system.

[0011] In some embodiments, the NWDAF network element sending a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI includes:

[0012] The NWDAF network element determines whether there is AMF network element information for user access;

[0013] If there is AMF network element information for user access, the NWDAF network element sends a request to the AMF network element to which the user accesses to obtain the user's 5G-GUTI.

[0014] In some embodiments, the NWDAF network element sending a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI includes:

[0015] If there is no AMF network element information for the user's access, the NWDAF network element obtains the AMF network element information for the user's access from the UDM network element to which the user belongs, and sends a request to the AMF network element to which the user accesses to obtain the user's 5G-GUTI.

[0016] In some embodiments, the NWDAF network element discovers the UDM network element to which the user belongs from the NRF network element.

[0017] In some embodiments, the NWDAF network element sending a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI includes:

[0018] When the NWDAF network element determines that the user's wireless status is needed as input data for the analysis service, it sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI.

[0019] In some embodiments, the NWDAF network element further includes analyzing the user's wireless status as input data for the analysis service.

[0020] In some embodiments, the wireless network management system obtains the user's wireless status based on the user's TMSI, including:

[0021] The wireless network management system obtains the user's wireless status from its own network management system or wireless base station based on the user's TMSI.

[0022] In some embodiments, the user's wireless status includes at least one of: received power and signal-to-noise ratio.

[0023] This disclosure provides some embodiments of an NWDAF network element, including:

[0024] The GUTI request module is configured so that the NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI.

[0025] The GUTI receiving module is configured to receive the user's 5G-GUTI sent by the AMF network element accessed by the user, which includes the user's TMSI;

[0026] The wireless status request module is configured to send a request to the wireless network management system to obtain the user's wireless status using the user's TMSI, so that the wireless network management system can obtain the user's wireless status based on the user's TMSI.

[0027] The wireless status receiving module is configured to receive the user's wireless status sent by the wireless network management system.

[0028] In some embodiments, the GUTI request module is configured to

[0029] Determine if there is AMF network element information for user access;

[0030] If so, send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI;

[0031] If not, obtain the AMF network element information accessed by the user from the UDM network element to which the user belongs, and send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI.

[0032] In some embodiments, the GUTI request module is further configured to discover the UDM network element to which the user belongs from the NRF network element.

[0033] In some embodiments, the GUTI request module is configured to send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI when it is determined that the user's wireless status is needed as input data for the analysis service.

[0034] In some embodiments, the system further includes an analysis module configured to analyze a user’s wireless status as input data for an analysis service.

[0035] Some embodiments of this disclosure propose an NWDAF network element, including: a memory; and a processor coupled to the memory, the processor being configured to perform a method for acquiring user radio status based on instructions stored in the memory.

[0036] Some embodiments of this disclosure propose a system for obtaining a user's wireless status, including: the aforementioned NWDAF network element, and a wireless network management system configured to respond to a request from the NWDAF network element to obtain the user's wireless status, obtain the user's wireless status from its own network management system or wireless base station based on the user's TMSI in the request, and return it to the NWDAF network element.

[0037] Some embodiments of this disclosure provide a non-transitory computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of a method for acquiring a user's wireless status. Attached Figure Description

[0038] The accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. This disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings.

[0039] Obviously, the accompanying drawings described below are merely some embodiments of this disclosure. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0040] Figure 1 A flowchart illustrating a method for obtaining a user's wireless status according to some embodiments of this disclosure is shown.

[0041] Figure 2 A comparative diagram is shown between related technologies and the present application regarding the acquisition of user wireless status.

[0042] Figure 3 This diagram illustrates information interaction of methods for obtaining user wireless status according to some embodiments of the present disclosure.

[0043] Figure 4 A schematic diagram of a system for obtaining user wireless status according to some embodiments of the present disclosure is shown.

[0044] Figure 5 A schematic diagram of NWDAF network elements according to some embodiments of this disclosure is shown.

[0045] Figure 6 A schematic diagram of NWDAF network elements according to other embodiments of this disclosure is shown. Detailed Implementation

[0046] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0047] Unless otherwise stated, the terms "first," "second," etc., used in this disclosure are used to distinguish different objects and are not used to indicate size or sequence.

[0048] Figure 1 A flowchart illustrating a method for obtaining a user's wireless status according to some embodiments of this disclosure is shown.

[0049] like Figure 1 As shown, the method for obtaining user wireless status in this embodiment includes:

[0050] In step 110, when the NWDAF network element determines that the user's radio status is needed as input data for the analysis service, it executes steps 120-150, so that the NWDAF network element obtains the user's TMSI from the AMF (Access and Mobility Management Function) network element to which the user is connected.

[0051] The user's wireless status includes, but is not limited to, at least one of the following: received power and signal-to-noise ratio.

[0052] For example, suppose the analytics service that subscribes to events needs to analyze the service quality of a cell, and requires the wireless status of each user in that cell as input data to analyze the service quality of the cell.

[0053] In step 120, the NWDAF network element determines whether there is AMF network element information for user access. If not, steps 130 and 140 are executed; if so, step 140 is executed directly.

[0054] In step 130, the NWDAF network element discovers the UDM (Unified Data Management) network element to which the user belongs from the NRF (Network repository function) network element, and obtains the AMF network element information accessed by the user from the UDM network element to which the user belongs.

[0055] In step 140, the NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI (5G Globally Unique Temporary UE Identity).

[0056] In step 150, the NWDAF network element receives the user's 5G-GUTI sent by the AMF network element accessed by the user, which contains the user's TMSI, and extracts the user's TMSI from the user's 5G-GUTI.

[0057] In step 160, the NWDAF network element uses the user's TMSI to send a request to the wireless network management system to obtain the user's wireless status, so that the wireless network management system can obtain the user's wireless status based on the user's TMSI.

[0058] The wireless network management system obtains the user's wireless status from its own network management system or wireless base station based on the user's TMSI.

[0059] Wireless network management systems, for example, include OMC-R.

[0060] In step 170, the NWDAF network element receives the user's wireless status sent by the wireless network management system.

[0061] In the above embodiments, the NWDAF network element obtains the user's TMSI through the 5G core network and obtains the user's wireless status from the wireless network management system through the user's TMSI. OAM only needs to use the wireless network management system and does not require the linkage of multiple OAM-related devices, which simplifies the implementation of OAM in obtaining the user's wireless status and improves the real-time performance of obtaining the user's wireless status and related analysis services.

[0062] like Figure 2 The diagram illustrates a comparison between related technologies and the present application's approach to obtaining user wireless status. Related technologies require the coordinated operation of multiple OAM-related devices, such as a wireless network management system (e.g., OMC-R), a core network management system (e.g., OMC-C), and a comprehensive network management system (e.g., a comprehensive OMC), to provide the user's wireless status to the NWDAF, resulting in complexity. The present application's NWDAF network element obtains the user's TMSI within the 5G core network and uses this TMSI to obtain the user's wireless status from the wireless network management system (e.g., OMC-R). OAM only needs to utilize the wireless network management system, eliminating the need for coordinated operation of multiple OAM-related devices, thus simplifying the implementation of OAM for obtaining user wireless status and improving the real-time performance of user wireless status acquisition.

[0063] Figure 3 This diagram illustrates information interaction of methods for obtaining user wireless status according to some embodiments of the present disclosure.

[0064] like Figure 3 As shown, the method for obtaining user wireless status in this embodiment includes:

[0065] In step 310, the NWDAF network element determines the user's radio status as input data for the analysis service, based on the needs of the analysis service.

[0066] The user's wireless status includes, but is not limited to, at least one of the following: received power and signal-to-noise ratio.

[0067] In step 320, the NWDAF network element determines whether there is AMF network element information for user access. If not, proceed to steps 330-350; if so, proceed directly to step 350.

[0068] In step 330, the NWDAF network element discovers the UDM network element to which the user belongs from the NRF network element.

[0069] In step 340, the NWDAF network element obtains the AMF network element information accessed by the user from the UDM network element to which the user belongs.

[0070] In step 350, the NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI, and receives the user's 5G-GUTI sent by the AMF network element accessed by the user, which includes the user's TMSI, and extracts the user's TMSI from the user's 5G-GUTI.

[0071] In step 360, the NWDAF network element uses the user's TMSI to send a request to the wireless network management system to obtain the user's wireless status.

[0072] In step 370, the wireless network management system obtains the user's wireless status from its own network management system or wireless base station based on the user's TMSI.

[0073] In step 380, the NWDAF network element receives the user's wireless status sent by the wireless network management system.

[0074] In step 390, the NWDAF network element uses the user's radio status as input data for the analysis service to perform analysis related to the analysis service.

[0075] For example, the NWDAF network element uses the wireless status of each user in the cell as input data to analyze the quality of service of the cell.

[0076] In the above embodiments, the NWDAF network element obtains the user's TMSI through the 5G core network and uses the user's TMSI to obtain the user's wireless status from the wireless network management system. OAM only needs to use the wireless network management system and does not require the linkage of multiple OAM-related devices, which simplifies the implementation of OAM in obtaining the user's wireless status, improves the real-time performance of the NWDAF network element in obtaining the user's wireless status, and enhances the NWDAF network element's real-time analysis capability based on the user's wireless status.

[0077] Figure 4 A schematic diagram of a system for obtaining user wireless status according to some embodiments of the present disclosure is shown.

[0078] like Figure 4 As shown, the system 400 for obtaining user wireless status in this embodiment includes: NWDAF network element 410, and wireless network management system 420.

[0079] The NWDAF network element 410 is configured to send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI, receive the user's 5G-GUTI sent by the AMF network element accessed by the user, which includes the user's TMSI, use the user's TMSI to send a request to the wireless network management system to obtain the user's wireless status, so that the wireless network management system can obtain the user's wireless status based on the user's TMSI, and receive the user's wireless status sent by the wireless network management system.

[0080] The wireless network management system 420 is configured to respond to a request from the NWDAF network element 410 to obtain the user's wireless status, obtain the user's wireless status from its own network management system or wireless base station based on the user's TMSI in the request, and return it to the NWDAF network element 410.

[0081] Figure 5 A schematic diagram of NWDAF network elements according to some embodiments of this disclosure is shown.

[0082] like Figure 5 As shown, the NWDAF network element 410 in this embodiment includes:

[0083] The GUTI request module 510 is configured to send a request from the NWDAF network element to the AMF network element accessed by the user to obtain the user's 5G-GUTI.

[0084] GUTI receiver module 520 is configured to receive the user's 5G-GUTI sent by the AMF network element accessed by the user, which includes the user's TMSI;

[0085] The wireless status request module 530 is configured to send a request to the wireless network management system to obtain the user's wireless status using the user's TMSI, so that the wireless network management system can obtain the user's wireless status based on the user's TMSI.

[0086] The wireless status receiver module 540 is configured to receive the user's wireless status sent by the wireless network management system.

[0087] In some embodiments, the GUTI request module 510 is configured to

[0088] Determine if there is AMF network element information for user access;

[0089] If so, send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI;

[0090] If not, obtain the AMF network element information accessed by the user from the UDM network element to which the user belongs, and send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI.

[0091] In some embodiments, the GUTI request module 510 is further configured to discover the UDM network element to which the user belongs from the NRF network element.

[0092] In some embodiments, the GUTI request module 510 is configured to send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI when it is determined that the user's wireless status is needed as input data for the analysis service.

[0093] The NWDAF network element 410 also includes an analysis module 550, which is configured to analyze the user's wireless status as input data for the analysis service.

[0094] Figure 6 A schematic diagram of NWDAF network elements according to other embodiments of this disclosure is shown.

[0095] like Figure 6 As shown, the NWDAF network element 410 of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610. The processor 620 is configured to execute the method of obtaining user wireless status in any of the foregoing embodiments based on instructions stored in the memory 610.

[0096] For example, the NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI; the NWDAF network element receives the user's 5G-GUTI sent by the AMF network element accessed by the user, which includes the user's TMSI; the NWDAF network element uses the user's TMSI to send a request to the wireless network management system to obtain the user's wireless status, so that the wireless network management system can obtain the user's wireless status based on the user's TMSI; the NWDAF network element receives the user's wireless status sent by the wireless network management system.

[0097] The memory 610 may include, for example, system memory, fixed non-volatile storage media, etc. The system memory may store, for example, the operating system, application programs, boot loader, and other programs.

[0098] The processor 620 can be implemented using a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gates, or transistors, or other discrete hardware components.

[0099] The NWDAF network element 410 may also include input / output interfaces 630, network interfaces 640, and storage interfaces 650. These interfaces 630, 640, and 650, as well as the memory 610 and processor 620, can be connected via, for example, a bus 660. The input / output interface 630 provides a connection interface for input / output devices such as displays, mice, keyboards, and touchscreens. The network interface 640 provides a connection interface for various networked devices. The storage interface 650 provides a connection interface for external storage devices such as SD cards and USB flash drives. The bus 660 can use any bus architecture from various bus structures. For example, bus architectures include, but are not limited to, Industry Standard Architecture (ISA) buses, Micro Channel Architecture (MCA) buses, and Peripheral Component Interconnect (PCI) buses.

[0100] Some embodiments of this disclosure provide a non-transitory computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of a method for acquiring a user's wireless status.

[0101] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, systems, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more non-transitory computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer program code.

[0102] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can 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 a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0103] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0104] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0105] The above description is only a preferred embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A method for obtaining a user's wireless status, characterized in that, include: The NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI; The NWDAF network element receives the user's 5G-GUTI sent by the AMF network element accessed by the user, which includes the user's TMSI; The NWDAF network element uses the user's TMSI to send a request to the wireless network management system to obtain the user's wireless status; The NWDAF network element receives the user's wireless status from the wireless network management system.

2. The method according to claim 1, characterized in that, The NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI, including: The NWDAF network element determines whether there is AMF network element information for user access; If there is AMF network element information for user access, the NWDAF network element sends a request to the AMF network element for user access to obtain the user's 5G-GUTI.

3. The method according to claim 2, characterized in that, The NWDAF network element also sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI, which also includes: If there is no AMF network element information for user access, the NWDAF network element obtains the UDM network element to which the user belongs from the NRF network element, obtains the AMF network element information for which the user accesses from the UDM network element to which the user belongs, and sends a request to the AMF network element to which the user accesses to obtain the user's 5G-GUTI.

4. The method according to claim 1, characterized in that, The NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI, including: When the NWDAF network element determines that the user's wireless status is needed as input data for the analysis service, it sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI.

5. The method according to claim 1, characterized in that, Also includes: The NWDAF network element uses the user's wireless status as input data for analysis services.

6. The method according to claim 1, characterized in that, Also includes: The wireless network management system obtains the user's wireless status based on the user's TMSI, including: the wireless network management system obtains the user's wireless status from its own network management system or wireless base station based on the user's TMSI.

7. The method according to any one of claims 1-6, characterized in that, The user's wireless status includes at least one of the following: received power and signal-to-noise ratio.

8. An NWDAF network element, characterized in that, include: The GUTI request module is configured so that the NWDAF network element sends a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI. The GUTI receiving module is configured to receive the user's 5G-GUTI sent by the AMF network element accessed by the user, which includes the user's TMSI; The wireless status request module is configured to send a request to the wireless network management system to obtain the user's wireless status using the user's TMSI; The wireless status receiving module is configured to receive the user's wireless status sent by the wireless network management system.

9. The NWDAF network element according to claim 8, characterized in that, The GUTI request module is configured as follows: Determine if there is AMF network element information for user access; If so, send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI; or, If not, obtain the AMF network element information accessed by the user from the UDM network element to which the user belongs, and send a request to the AMF network element accessed by the user to obtain the user's 5G-GUTI.

10. The NWDAF network element according to claim 9, characterized in that, The GUTI request module is also configured to obtain the UDM network element to which the user belongs from the NRF network element.

11. The NWDAF network element according to claim 8, characterized in that, The GUTI request module is configured as follows: As needed for the analysis service, when it is determined that the user's wireless status is required as input data for the analysis service, a request to obtain the user's 5G-GUTI is sent to the AMF network element accessed by the user.

12. The NWDAF network element according to claim 8, characterized in that, Also includes: The analysis module is configured to analyze the user's wireless status as input data for the analysis service.

13. An NWDAF network element, comprising: Memory; as well as, A processor coupled to the memory, the processor being configured to perform the method of acquiring user wireless status according to any one of claims 1-7 based on instructions stored in the memory.

14. A system for acquiring user wireless status, comprising: The NWDAF network element according to any one of claims 8-13, and, The wireless network management system is configured to respond to a request from the NWDAF network element to obtain the user's wireless status, obtain the user's wireless status from its own network management system or wireless base station based on the user's TMSI in the request, and return it to the NWDAF network element.

15. A non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for obtaining user wireless status as described in any one of claims 1-7.

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