Data acquisition method, apparatus and system

Abstract

The application discloses a data acquisition method, device and system, and relates to the field of wireless communication.The data acquisition method comprises the following steps: a terminal sends data acquisition information to a network data analysis network element in a core network; and the terminal receives data analysis information corresponding to the data acquisition information and sent by the network data analysis network element.Through the application, the terminal can acquire the data analysis information with the aid of the computing power resources in the core network, so that the terminal can make decisions more accurately, the user experience is improved, and network resources are saved.

Description

Technical Field

[0001] This invention relates to the field of wireless communication, and in particular to a data acquisition method, apparatus, and system. Background Technology

[0002] Currently, network data analytics function (NWDAF) network elements in the core network can collect data from the network, perform data processing operations such as model training and data analysis, and provide the analysis results to consumer network elements that subscribe to the analysis results, such as PCF (Policy Control Function) and SMF (Session Management Function), to help consumer network elements make decisions. Summary of the Invention

[0003] After analysis, the inventors discovered that terminals often lack sufficient computing power, resulting in low accuracy in decision-making, poor user experience, and excessive network resource consumption.

[0004] One of the technical problems to be solved by the embodiments of the present invention is: how to improve the end-user experience and save network resources.

[0005] According to a first aspect of some embodiments of the present invention, a data acquisition method is provided, comprising: a terminal sending data acquisition information to a network data analysis element in a core network; and the terminal receiving data analysis information corresponding to the data acquisition information sent by the network data analysis element.

[0006] In some embodiments, the terminal sends data acquisition information to the network data analysis network element in the core network and receives data analysis information sent by the network data analysis network element through the network device.

[0007] In some embodiments, the terminal sends data acquisition information to network data analysis network elements in the core network and receives data analysis information sent by network data analysis network elements via UPF or AF.

[0008] In some embodiments, sending data acquisition information from a terminal to a network data analysis element in the core network includes: the terminal sending a first user plane data packet to a base station, wherein the first user plane data packet includes data acquisition information; the base station transparently transmitting the first user plane data packet to a UPF; the UPF converting the first user plane data packet into first control plane signaling; and the UPF forwarding the first control plane signaling to a network data analysis element in the core network.

[0009] In some embodiments, the terminal receiving data analysis information corresponding to data acquisition information sent by the network data analysis network element includes: the network data analysis network element generating data analysis information; the network data analysis network element sending a second control plane signaling to the UPF, wherein the second control plane signaling includes data analysis information; the UPF converting the second control plane signaling into a second user plane data packet; the UPF sending the second user plane data packet to the base station; and the base station transparently transmitting the second user plane data packet to the terminal.

[0010] In some embodiments, sending data acquisition information from a terminal to a network data analysis element in the core network includes: an application on the terminal sending data acquisition information to the AF via a user plane connection; and the AF sending the data acquisition information directly or indirectly to the network data analysis element in the core network.

[0011] In some embodiments, the terminal receiving data analysis information corresponding to data acquisition information sent by the network data analysis network element includes: the network data analysis network element generating the data analysis information; the network data analysis network element directly or indirectly sending the data analysis information to the AF; and the AF sending the data analysis information to the application on the terminal through the user plane connection.

[0012] In some embodiments, when the AF is an authorized AF, the AF directly sends data acquisition information to the network data analysis element, and the network data analysis element directly sends data analysis information to the AF.

[0013] In some embodiments, the network data analysis element is NWDAF, and when the AF is an authorized AF: the AF sends data acquisition information to the NWDAF through the NWDAF analysis subscription service or the NWDAF analysis information request service; the NWDAF sends data analysis information to the AF through the NWDAF analysis subscription service or the NWDAF analysis information request service.

[0014] In some embodiments, when the AF is an unauthorized AF, the AF indirectly sends data acquisition information to the network data analysis element through the NEF, and the network data analysis element indirectly sends data analysis information to the AF through the NEF.

[0015] In some embodiments, the network data analysis element is NWDAF, and when the AF is an unauthorized AF: the AF sends data acquisition information to NEF through NEF analysis or event open service, so that NEF sends the data acquisition information to NWDAF through NWDAF analysis subscription service or NWDAF analysis information request service; the NWDAF sends data analysis information to NEF through NWDAF analysis subscription service or NWDAF analysis information request service, so that NEF sends the data analysis information to AF through NEF analysis or event open service.

[0016] In some embodiments, the network data analysis element in the core network is NWDAF.

[0017] In some embodiments, data acquisition information is a request for or subscription to data analysis information.

[0018] In some embodiments, the data acquisition information includes at least one of the following: analysis content identifier, analysis filtering information, or target terminal information.

[0019] According to a second aspect of some embodiments of the present invention, a data acquisition system is provided, comprising: a terminal configured to send data acquisition information to a network data analysis network element in a core network; and a network data analysis network element located in the core network configured to send data analysis information corresponding to the data acquisition information to the terminal.

[0020] In some embodiments, the data acquisition system further includes: a base station configured to receive a first user plane data packet sent by a terminal, wherein the first user plane data packet includes data acquisition information; to pass the first user plane data packet through a UPF; to receive a second user plane data packet sent by the base station; and to pass the second user plane data packet through the terminal; and a UPF configured to convert the first user plane data packet into first control plane signaling; to forward the first control plane signaling to a network data analysis element in the core network; to receive a second control plane signaling sent by the network data analysis element, wherein the second control plane signaling includes data analysis information; to convert the second control plane signaling into a second user plane data packet; and to send the second user plane data packet to the base station.

[0021] In some embodiments, the data acquisition system further includes: an AF, configured to receive data acquisition information sent by an application on a terminal via a user plane connection; send the data acquisition information directly or indirectly to a network data analysis element in the core network; receive data analysis information sent directly or indirectly by the network data analysis element; and send the data analysis information to the application on the terminal via a user plane connection.

[0022] In some embodiments, the data acquisition system further includes: NEF, configured to send data acquisition information sent by the AF to the network data analysis element when the AF is an untrusted AF; and to send data analysis information sent by the network data analysis element to the AF.

[0023] In some embodiments, the network data analysis element in the core network is NWDAF.

[0024] According to a third aspect of some embodiments of the present invention, an electronic device is provided, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute any of the foregoing data acquisition methods based on instructions stored in the memory.

[0025] According to a fourth aspect of some embodiments of the present invention, a computer-readable storage medium is provided having a computer program stored thereon, wherein the program, when executed by a processor, implements any of the aforementioned data acquisition methods.

[0026] Some embodiments of the above invention have the following advantages or beneficial effects: the terminal can obtain data analysis information by means of the computing resources in the core network, thereby enabling the terminal to make decisions more accurately, improving user experience, and saving network resources.

[0027] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A flowchart illustrating a data acquisition method according to some embodiments of the present invention is shown.

[0030] Figure 2 A flowchart illustrating a data acquisition method according to other embodiments of the present invention is shown.

[0031] Figure 3 A flowchart illustrating a data acquisition method according to some embodiments of the present invention is shown.

[0032] Figure 4 A flowchart illustrating a data acquisition method according to some embodiments of the present invention is shown.

[0033] Figure 5A schematic diagram of the structure of a data acquisition system according to some embodiments of the present invention is shown.

[0034] Figure 6 A schematic diagram of the structure of an electronic device according to some embodiments of the present invention is shown.

[0035] Figure 7 A schematic diagram of the structure of an electronic device according to some embodiments of the present invention is shown. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention.

[0038] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0042] The inventors recognized that if terminals could utilize the computing power provided by network data analysis elements in the core network to perform data statistics or prediction when making decisions, it would help terminals make the right choices.

[0043] Figure 1 A flowchart illustrating a data acquisition method according to some embodiments of the present invention is shown. Figure 1 As shown, the data acquisition method in this embodiment includes steps S102 to S104.

[0044] In step S102, the terminal sends data acquisition information to the network data analysis network element in the core network.

[0045] In some embodiments, the network data analysis element is NWDAF.

[0046] In some embodiments, data acquisition information refers to requests or subscriptions for data analysis information. A request indicates the acquisition of data all at once. A subscription indicates the acquisition of data multiple times, such as periodically acquiring data, acquiring data when data is updated, etc.

[0047] In some embodiments, the terminal sends data acquisition information to the network data analysis network element in the core network through a network device. For example, the terminal can send the data acquisition information to the network data analysis network element through a UPF (User Plane Function) or an AF (Application Function).

[0048] In some embodiments, the data acquisition information includes at least one of the following: analysis content identifier, analysis filter information, or target terminal information. Other types of information may also be included. Table 1 exemplarily illustrates the parameters that may be included in the data acquisition information.

[0049] Table 1

[0050]

[0051]

[0052] In step S104, the terminal receives data analysis information corresponding to the data acquisition information sent by the network data analysis network element.

[0053] Table 2 provides an example of the information that may be included in the data analysis information returned by the network data analysis network element of the core network.

[0054] Table 2

[0055]

[0056]

[0057] In some embodiments, the terminal receives data analysis information through network devices. For example, the terminal may receive data analysis information through a base station and a UPF, or through an AF.

[0058] Through the above embodiments, the terminal can obtain data analysis information by leveraging the computing resources in the core network, thereby enabling the terminal to make more accurate decisions, improving user experience, and saving network resources.

[0059] For example, when a terminal selects a UE route selection policy (URSP) rule, if it can obtain information such as slice load level analysis provided by NWDAF, it will choose a more optimal URSP rule, thereby improving user experience and saving network resources. Simultaneously, applications on the terminal can also make personalized settings and optimizations through data analysis provided by NWDAF. Furthermore, considering security issues, network information cannot be completely exposed to the terminal. The information provided by NWDAF is controllable by the operator, such as statistical or predictive results, rather than metadata. Therefore, embodiments of the present invention can help the terminal obtain more information to make decisions without exposing too much information to the terminal.

[0060] The following section uses specific network elements to exemplify two methods for obtaining data analysis information.

[0061] Figure 2 A flowchart illustrating a data acquisition method according to other embodiments of the present invention is shown. For example... Figure 2 As shown, the data acquisition method in this embodiment includes steps S202 to S218.

[0062] In step S202, the terminal sends a first user plane data packet to the base station, wherein the first user plane data packet includes data acquisition information.

[0063] In step S204, the base station transparently transmits the first user plane data packet to the UPF.

[0064] The base station is, for example, a 4G base station gNB.

[0065] In step S206, the UPF converts the first user plane data packet into the first control plane signaling.

[0066] In step S208, the UPF forwards the first control plane signaling to the network data analysis network element in the core network, for example, to the NWDAF.

[0067] In step S210, the network data analysis element generates data analysis information.

[0068] In step S212, the network data analysis element sends a second control plane signaling to the UPF, wherein the second control plane signaling includes data analysis information.

[0069] In step S214, the UPF converts the second control plane signaling into a second user plane data packet.

[0070] In step S216, the UPF sends the second user plane data packet to the base station.

[0071] In step S218, the base station transparently transmits the second user plane data packet to the terminal.

[0072] The above embodiments utilize a UPF as a forwarding device between the terminal and the data analysis network elements of the core network, enabling the terminal to obtain data analysis information provided by high-computing-power devices in the core network. Furthermore, using the UPF as an intermediary enables rapid data forwarding, improving the efficiency of data acquisition.

[0073] Furthermore, the terminal can also utilize the AF (Automatic Data Acquisition) for relaying data acquisition information to network data analysis elements in the core network, as well as returning data analysis information. In some embodiments, the application on the terminal sends data acquisition information to the AF via a user plane connection; the AF directly or indirectly sends the data acquisition information to network data analysis elements in the core network; the network data analysis elements generate data analysis information; the network data analysis elements directly or indirectly send the data analysis information to the AF; and the AF sends the data analysis information to the application on the terminal via a user plane connection.

[0074] The following is for reference. Figure 3 and Figure 4 This paper describes two specific implementation methods for data acquisition using AF (Automatic Data Acquisition).

[0075] Figure 3 A schematic flowchart of a data acquisition method according to some embodiments of the present invention is shown. In this embodiment, AF is an authorized AF. Figure 3 As shown, the data acquisition method in this embodiment includes steps S302 to S310.

[0076] In step S302, the application on the terminal sends data to the AF to obtain information through the user plane connection.

[0077] In step S304, the AF directly sends the data acquisition information to the network data analysis network element in the core network.

[0078] In some embodiments, the network data analysis element is NWDAF. The AF directly sends the data acquisition information to the NWDAF through the NWDAF analysis subscription service (Nnwdaf_AnalyticsSubscription) or the NWDAF analysis information request service (Nnwdaf_AnalyticsInfo).

[0079] As needed, the AF can convert or encapsulate the signaling, including data acquisition information, sent by the terminal before transmission; this will not be elaborated upon in this embodiment. This embodiment only describes the data contained in the signaling transmitted between the terminal and the network element.

[0080] In step S306, the network data analysis element generates data analysis information.

[0081] In step S308, the network data analysis element directly sends the data analysis information to the AF.

[0082] In some embodiments, the network data analysis element is NWDAF. NWDAF directly sends data analysis information to AF through NWDAF analysis subscription service (Nnwdaf_AnalyticsSubscription) or NWDAF analysis information request service (Nnwdaf_AnalyticsInfo).

[0083] In step S310, AF sends data analysis information to the application on the terminal via the user plane connection.

[0084] When the AF is a non-trusted AF, the AF indirectly sends data acquisition information to the network data analysis network element through the NEF (Network Exposure Function), and the network data analysis network element indirectly sends data analysis information to the AF through the NEF. Figure 4 A schematic flowchart of a data acquisition method according to some embodiments of the present invention is shown. In this embodiment, the AF is an untrusted AF. Figure 4 As shown, the data acquisition method in this embodiment includes steps S402 to S414.

[0085] In step S402, the application on the terminal sends data to the AF to obtain information through the user plane connection.

[0086] In step S404, AF sends the data acquisition information to NEF.

[0087] In some embodiments, AF sends data acquisition information to NEF via the Nnef Analytics Exposure service.

[0088] In step S406, NEF sends the data acquisition information to the network data analysis element.

[0089] In some embodiments, the network data analysis element is NWDAF. NEF sends data acquisition information to NWDAF through the NWDAF analysis subscription service (Nnwdaf_AnalyticsSubscription) or the NWDAF analysis information request service (Nnwdaf_AnalyticsInfo).

[0090] In step S408, the network data analysis element generates data analysis information.

[0091] In step S410, the network data analysis element sends the data analysis information to the NEF.

[0092] In some embodiments, the network data analysis element is NWDAF, which sends data analysis information to NEF through the NWDAF Analysis Subscription Service (Nnwdaf_AnalyticsSubscription) or the NWDAF Analysis Information Request Service (Nnwdaf_AnalyticsInfo).

[0093] In step S412, NEF sends the data analysis information to AF.

[0094] In some embodiments, NEF sends data analysis information to AF through the NEF Analytics or Event Exposure (Nnef_AnalyticsExposure) service.

[0095] In step S414, AF sends data analysis information to the application on the terminal via the user plane connection.

[0096] Therefore, both trusted and untrusted attack points (AFs) can assist terminals in obtaining data analysis information provided by the core network. Furthermore, terminals can obtain this information even without connecting to a base station. Of course, when a terminal connects to a base station, a relay-based solution using an AF can also be employed.

[0097] The following are some exemplary application scenarios after the terminal obtains and analyzes data.

[0098] In the first scenario, before the UE makes a decision, it requests NWDAF information to assist the UE in making the correct decision. For example, when the UE needs to decide which URSP rule to use, it requests data analysis on network slices from NWDAF, determines the slice it should access based on the analysis results, and selects the appropriate URSP rule.

[0099] In a federated learning scenario, the UE can request the original model from the NWDAF to complete the model training on the UE side.

[0100] In autonomous driving scenarios, the UE can subscribe to NWDAF for Quality of Service (QoS) data analysis and prediction, so that the UE can react in advance before the QoS deteriorates.

[0101] The following is for reference. Figure 5 An embodiment of the data acquisition system of the present invention is described.

[0102] Figure 5 A schematic diagram of the structure of a data acquisition system according to some embodiments of the present invention is shown. For example... Figure 5 As shown, the data acquisition system 50 of this embodiment includes: a terminal 510, configured to send data acquisition information to a network data analysis network element in the core network; and a network data analysis network element 520, located in the core network, configured to send data analysis information corresponding to the data acquisition information to the terminal.

[0103] In some embodiments, the data acquisition system 50 further includes: a base station 530 configured to receive a first user plane data packet sent by a terminal, wherein the first user plane data packet includes data acquisition information; pass the first user plane data packet through a UPF; receive a second user plane data packet sent by the base station; and pass the second user plane data packet through the terminal; and a UPF 540 configured to convert the first user plane data packet into first control plane signaling; forward the first control plane signaling to a network data analysis element in the core network; receive a second control plane signaling sent by a network data analysis element, wherein the second control plane signaling includes data analysis information; convert the second control plane signaling into a second user plane data packet; and send the second user plane data packet to the base station.

[0104] In some embodiments, the data acquisition system 50 further includes: AF 550, configured to receive data acquisition information sent by an application on a terminal via a user plane connection; send the data acquisition information directly or indirectly to a network data analysis element in the core network; receive data analysis information sent directly or indirectly by the network data analysis element; and send the data analysis information to the application on the terminal via a user plane connection.

[0105] In some embodiments, the data acquisition system further includes: NEF 560, configured to send data acquisition information sent by the AF to the network data analysis element when the AF is an untrusted AF; and to send data analysis information sent by the network data analysis element to the AF.

[0106] In some embodiments, the network data analysis element 520 in the core network is NWDAF.

[0107] Figure 6 A schematic diagram of the structure of an electronic device according to some embodiments of the present invention is shown. For example... Figure 6 As shown, the electronic device 60 of this embodiment includes a memory 610 and a processor 620 coupled to the memory 610. The processor 620 is configured to execute the data acquisition method of any of the foregoing embodiments based on instructions stored in the memory 610.

[0108] 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.

[0109] Figure 7 A schematic diagram of the structure of an electronic device according to some embodiments of the present invention is shown. For example... Figure 7 As shown, the electronic device 70 of this embodiment includes a memory 710 and a processor 720, and may also include an input / output interface 730, a network interface 740, a storage interface 750, etc. These interfaces 730, 740, 750, and the memory 710 and processor 720 can be connected, for example, via a bus 760. The input / output interface 730 provides a connection interface for input / output devices such as a display, mouse, keyboard, and touchscreen. The network interface 740 provides a connection interface for various networked devices. The storage interface 750 provides a connection interface for external storage devices such as SD cards and USB flash drives.

[0110] Embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, characterized in that the program, when executed by a processor, implements any of the aforementioned data acquisition methods.

[0111] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can 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, etc.) containing computer-usable program code.

[0112] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. 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, generate instructions 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.

[0113] 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 1The function specified in one or more boxes.

[0114] 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.

[0115] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A data acquisition method, comprising: The terminal sends data acquisition information to a network data analysis element in the core network through a network device. Wherein, if the network device is a UPF, the sending of data acquisition information by the terminal to the network data analysis element in the core network includes: The terminal sends a first user plane data packet to the base station, wherein the first user plane data packet includes data acquisition information; The base station transparently transmits the first user plane data packet to the UPF; The UPF converts the first user plane data packet into first control plane signaling; and... The UPF forwards the first control plane signaling to the network data analysis network element in the core network; The terminal receives data analysis information corresponding to the data acquisition information sent by the network data analysis network element through the network device.

2. The data acquisition method according to claim 1, wherein, When the network device is a UPF, the terminal receives data analysis information corresponding to the data acquisition information sent by the network data analysis network element through the network device, including: The network data analysis element generates data analysis information; The network data analysis element sends a second control plane signaling to the UPF, wherein the second control plane signaling includes the data analysis information; The UPF converts the second control plane signaling into a second user plane data packet; The UPF sends the second user plane data packet to the base station; and The base station transparently transmits the second user plane data packet to the terminal.

3. The data acquisition method according to claim 1, wherein, When the network device is an AF (Automatic Field-Oriented) network, the terminal sends data to the network data analysis element in the core network to obtain information, including: Applications on the terminal send data to the AF to obtain information via a user plane connection; and, The AF directly or indirectly sends the data acquisition information to the network data analysis network element in the core network.

4. The data acquisition method according to claim 3, wherein, When the network device is an AF (Automatic Field-Oriented) network, the terminal receives data analysis information corresponding to the data acquisition information sent by the network data analysis element through the network device, including: The network data analysis element generates data analysis information; The network data analysis element directly or indirectly sends the data analysis information to the AF; The AF sends the data analysis information to the application on the terminal via a user plane connection.

5. The data acquisition method according to claim 4, wherein, When the AF is an authorized AF, the AF directly sends the data acquisition information to the network data analysis network element, and the network data analysis network element directly sends the data analysis information to the AF.

6. The data acquisition method according to claim 5, wherein, The network data analysis element is an NWDAF, and, in the case that the AF is an authorized AF: The AF sends the data acquisition information to the NWDAF through the NWDAF analysis subscription service or the NWDAF analysis information request service; The NWDAF sends the data analysis information to the AF through the NWDAF analysis subscription service or the NWDAF analysis information request service.

7. The data acquisition method according to claim 4, wherein, When the AF is an unauthorized AF, the AF indirectly sends the data acquisition information to the network data analysis element through the Network Development Function (NEF), and the network data analysis element indirectly sends the data analysis information to the AF through the NEF.

8. The data acquisition method according to claim 7, wherein, The network data analysis element is an NWDAF, and in the case that the AF is an untrusted AF: The AF sends the data acquisition information to the NEF through NEF analysis or event open service, so that the NEF can send the data acquisition information to the NWDAF through NWDAF analysis subscription service or NWDAF analysis information request service; The NWDAF sends the data analysis information to the NEF through the NWDAF Analysis Subscription Service or the NWDAF Analysis Information Request Service, so that the NEF can send the data analysis information to the AF through the NEF Analysis or Event Open Service.

9. The data acquisition method according to any one of claims 1-8, wherein, The network data analysis element in the core network is NWDAF.

10. The data acquisition method according to any one of claims 1-8, wherein, The data acquisition information refers to requests or subscriptions for data analysis information.

11. The data acquisition method according to any one of claims 1-8, wherein, The data acquisition information includes at least one of the following: analysis content identifier, analysis filtering information, or target terminal information.

12. A data acquisition system, comprising: The terminal is configured to send data to network data analysis elements in the core network to obtain information; A base station is configured to receive a first user plane data packet sent by a terminal, wherein the first user plane data packet includes data acquisition information; to pass the first user plane data packet through a UPF; to receive a second user plane data packet sent by the base station; and to pass the second user plane data packet through the terminal. UPF is configured to convert the first user plane data packet into a first control plane signaling; forward the first control plane signaling to a network data analysis network element in the core network; receive a second control plane signaling sent by the network data analysis network element, wherein the second control plane signaling includes data analysis information corresponding to data acquisition information; convert the second control plane signaling into a second user plane data packet; and send the second user plane data packet to the base station. The network data analysis element, located in the core network, is configured to send the data analysis information to the terminal.

13. The data acquisition system according to claim 12, further comprising: AF is configured to receive data sent by applications on the terminal via a user plane connection to obtain information; The data acquisition information is sent directly or indirectly to the network data analysis network element in the core network; the data analysis information is received directly or indirectly from the network data analysis network element. The data analysis information is sent to the application on the terminal via a user plane connection.

14. The data acquisition system according to claim 13, further comprising: The NEF is configured to, when the AF is an untrusted AF, send the data acquisition information sent by the AF to the network data analysis element; and send the data analysis information sent by the network data analysis element to the AF.

15. The data acquisition system according to any one of claims 12-14, wherein, The network data analysis element in the core network is NWDAF.

16. An electronic device comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the data acquisition method as described in any one of claims 1-11 based on instructions stored in the memory.

17. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the data acquisition method of any one of claims 1-11.

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