Method and apparatus for wireless communication

Abstract

The application provides a method and device for wireless communication, which helps a core network to support positioning based on a positioning model, thereby improving positioning accuracy. The method comprises: a first network element determining a first positioning mode of a terminal device, the first positioning mode comprising a mode of positioning the terminal device based on a first positioning model, the first positioning model comprising a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

Description

Wireless communication method and device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a method and device for wireless communication. Background Art

[0002] To improve the accuracy of communication device positioning, a solution has been proposed to determine location information based on positioning models (e.g., artificial intelligence (AI) models). However, how the core network supports positioning technology based on positioning models is an urgent issue to be resolved.

[0003] Summary of the Invention

[0004] The present application provides a method and device for wireless communication. The following introduces various aspects involved in the present application.

[0005] In a first aspect, a method for wireless communication is provided, the method comprising: a first network element determining a first positioning method of a terminal device, the first positioning method comprising a method for positioning the terminal device based on a first positioning model, the first positioning model comprising a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0006] In a second aspect, a method for wireless communication is provided, the method comprising: a second network element sends a first request to a first network element, the first request being used to request positioning of a terminal device; wherein the first request is also used by the first network element to determine a first positioning method of the terminal device, the first positioning method comprising a method for positioning the terminal device based on a first positioning model, the first positioning model comprising a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0007] According to a third aspect, a method for wireless communication is provided, the method comprising: a terminal device sends first information to a second network element, the first information being used to indicate capability information of the terminal device, the capability information of the terminal device including whether the terminal device has a first capability for positioning based on a first positioning model, the first positioning model including a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0008] In a fourth aspect, a method for wireless communication is provided, the method comprising: a third network element receives a fifth request sent by a second network element, the fifth request being used to request contract information of a terminal device, the contract information being used to indicate whether the terminal device is authorized to use a positioning service based on a first positioning model, the first positioning model including a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0009] In the fifth aspect, a core network network element is provided, which is a first network element. The core network network element includes: a determination unit for determining a first positioning method of a terminal device, the first positioning method including a method for positioning the terminal device based on a first positioning model, the first positioning model including a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0010] In the sixth aspect, a core network network element is provided, which is the second network element, and the core network network element includes: a first sending unit, used to send a first request to the first network element, and the first request is used to request positioning of the terminal device; wherein, the first request is also used by the first network element to determine a first positioning method of the terminal device, and the first positioning method includes a method for positioning the terminal device based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0011] In the seventh aspect, a terminal device is provided, which includes: a first sending unit, used to send first information to a second network element, the first information is used to indicate capability information of the terminal device, the capability information of the terminal device includes whether the terminal device has a first capability for positioning based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0012] In the eighth aspect, a core network network element is provided, which is a third network element. The core network network element includes: a receiving unit, used to receive a fifth request sent by the second network element, the fifth request is used to request the contract information of the terminal device, and the contract information is used to indicate whether the terminal device is authorized to use the positioning service based on the first positioning model, the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0013] In the ninth aspect, a core network element is provided, comprising a processor and a memory, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the core network element executes part or all of the steps in the method of the first aspect, the second aspect or the fourth aspect.

[0014] In the tenth aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the third aspect.

[0015] In an eleventh aspect, an embodiment of the present application provides a communications system, comprising the core network element and / or terminal device described above. In another possible design, the system may further include other devices that interact with the core network element and / or terminal device in the solution provided in the embodiment of the present application.

[0016] In the twelfth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

[0017] In the thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and the computer program enables the core network network elements and / or terminal devices to perform some or all of the steps in the methods of the above aspects.

[0018] In a fourteenth aspect, embodiments of the present application provide a computer program product, comprising a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a core network element and / or a terminal device to perform some or all of the steps of the methods described in each of the above aspects. In some implementations, the computer program product may be a software installation package.

[0019] In the embodiment of the present application, the first positioning method of the terminal device determined by the core network element (i.e., the first network element) includes a positioning method based on a first positioning model. The first positioning model can be located on the terminal device and / or the first network element. Therefore, the first network element can position the terminal device based on the positioning model on the terminal device and / or the first network element, thereby helping to improve positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a wireless communication system used in an embodiment of the present application.

[0021] FIG2 is a schematic diagram of a neural network applicable to an embodiment of the present application.

[0022] Figure 3 is a schematic diagram of a convolutional neural network applicable to an embodiment of the present application.

[0023] FIG4 is a schematic diagram of a location service architecture applicable to an embodiment of the present application.

[0024] FIG5 is a flow chart of a wireless communication method provided in an embodiment of the present application.

[0025] FIG6 is a flowchart of a possible implementation of the method shown in FIG5 .

[0026] FIG7 is a flowchart of another possible implementation of the method shown in FIG5 .

[0027] FIG8 is a flowchart of another possible implementation of the method shown in FIG5 .

[0028] FIG9 is a schematic structural diagram of a core network element provided in an embodiment of the present application.

[0029] Figure 10 is a schematic structural diagram of another core network element provided in an embodiment of the present application.

[0030] FIG11 is a schematic structural diagram of a terminal device provided in an embodiment of the present application.

[0031] Figure 12 is a schematic structural diagram of another core network element provided in an embodiment of the present application.

[0032] FIG13 is a schematic structural diagram of a device for communication according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solution in this application will be described below with reference to the accompanying drawings.

[0034] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, etc. The technical solutions provided by the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0035] First, a brief introduction to the network architecture applicable to this application is given.

[0036] As an example, Figure 1 shows an example diagram of a network architecture. The network architecture shown in Figure 1 takes the 5G system as an example. Among them, one of the most important features of the 5G network architecture is the service-oriented architecture, that is, the core network element (service provider) can provide specific services and make them available to other network elements (consumers) through a defined application programming interface (API). The network architecture can include three parts: the terminal device part, the data network (DN) part, and the operator network part. Among them, the operator network may include one or more of the following functional entities: access network (AN) equipment, user plane function (UPF) entity, access and mobility management function (AMF) entity, session management function (SMF) entity, policy control function (PCF) entity, application function (AF) entity, network slice selection function (NSSF) entity, authentication and authorization service function (AUSF) entity, unified data management (UDM) entity, network exposure function (NEF) entity, network repository function (NRF) entity, network slice-specific authentication and authorization function (NSSAAF) entity, etc. In the above-mentioned operator network, the part other than the access network equipment part can be called the core network part, and the functional entities of the core network part can be called core network equipment.

[0037] The following is an illustrative description of the functions of each part or functional entity involved in the network architecture in the 5G network.

[0038] Terminal device: A terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user apparatus. In the embodiments of the present application, a terminal device may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects, and machines, such as a handheld device or vehicle-mounted device with wireless connectivity. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through the base station.

[0039] Access network equipment: Access network equipment provides network access for authorized terminal devices in a specific area and can utilize transmission channels of varying quality based on the terminal device's level and service requirements. Access network equipment manages wireless resources, provides access services to terminal devices, and forwards control signals and data between terminal devices and the core network.

[0040] An access network device may be a device in a wireless network. An access network device may also be referred to as a radio access network (RAN) device or a network device. For example, an access network device may be a base station. The access network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station can also refer to a communication module, a modem or a chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in device-to-device D2D, vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the access network device.

[0041] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0042] In some deployments, the access network device in the embodiments of the present application may refer to a CU or a DU, or the access network device may include a CU and a DU. The gNB may also include an AAU.

[0043] The access network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the access network equipment and terminal equipment are located.

[0044] UPF entity: UPF is the user plane function in the core network, which can be responsible for forwarding and receiving user data (such as business data flow) in the terminal device. For example, UPF can receive user data from DN and transmit it to the terminal device through the access network device; or, UPF can also receive user data from the terminal device through the access network device and then forward it to DN. The transmission resources and scheduling functions that provide services to terminal devices in UPF are managed and controlled by SMF. The bearer between the terminal and the UPF network element may include: the user plane connection between the UPF network element and the access network device, and the establishment of a channel between the access network device and the terminal. Among them, the user plane connection is a QoS flow that can be established between the UPF network element and the access network device to transmit data.

[0045] AMF entity: AMF is the mobility management function in the core network. It can be used to implement other functions of the mobility management entity (MME) in addition to session management, such as lawful interception or access authorization (or authentication). In some embodiments, in addition to performing mobility management on terminal devices, the AMF can also be responsible for forwarding session management related messages between terminal devices and SMF.

[0046] SMF entity: SMF is the session management function in the core network, which is mainly responsible for session management, Internet protocol (IP) address allocation and management of terminal devices, selection of endpoints for manageable user plane functions, policy control, or charging function interfaces, downlink data notification, and configuration of routing information for user plane functions.

[0047] PCF entity: PCF is the policy management function in the core network, which is responsible for formulating policies related to mobility management, session management, and billing for terminal devices. Specifically, PCF can provide policy rule information to functional entities of the control plane (such as AMF and SMF entities) to manage and control mobility management and session management of terminal devices.

[0048] AF entity: AF mainly supports interaction with the 3rd generation partnership project (3GPP) core network to provide services, for example, influencing data routing decisions, policy control functions, or providing some third-party services to the network side. In other words, AF can be mainly used to convey the requirements of the application side to the network side. In some embodiments, AF can be understood as a third-party server, such as an application server in the Internet, which provides relevant business information, including providing service quality requirement information corresponding to the business to PCF, and sending user plane data information of the business to A-UPF. In some embodiments, AF can also be a service provider (content provider, CP).

[0049] DN: A DN is a network used to transmit data. It can be a private network, such as a local area network (LAN), an external network not controlled by a carrier, such as the internet, or a proprietary network deployed jointly with carriers, such as the network that provides IP multimedia core network subsystem (IMS) services.

[0050] NSSF entity: NSSF is the network slice selection function in the core network. The functions it supports include: selecting a set of network slice instances to serve the UE; determining the allowed network slice selection assistance information (NSSAI) and, when necessary, determining the mapping to the contracted single-network slice selection assistance information (S-NSSAI); determining the configured NSSAI and, when necessary, determining the mapping to the contracted S-NSSAI; determining the set of AMFs that may be used to query the UE, or determining a list of candidate AMFs based on the configuration.

[0051] AUSF can be used to receive AMF's request for terminal authentication, request a key from UDM, and then forward the issued key to AMF for authentication processing.

[0052] UDM can include functions such as the generation and storage of user contract data, management of authentication data, and support interaction with external third-party servers.

[0053] NEF can be used for capability exposure. That is, based on NEF, network capabilities can be exported to external networks. External, untrusted applications can access core network data through NEF to ensure network security. NEF can also provide external application QoS capability exposure, event subscription, and AF request distribution.

[0054] NRF is used to register, manage, and monitor the status of core network elements, enabling automated management of core network elements. Upon startup, a core network element must register with the NRF before it can provide services. Registration information may include the core network element's type, address, and service list.

[0055] In addition, 5G networks have added a network data analytics function (NWDAF) to the core network. Based on NWDAF, data can be collected from various core network elements and network management systems, and big data statistics and analysis or intelligent data analysis can be performed to obtain network-side analysis or prediction data, thereby assisting each network element to more effectively control terminal device access based on the data analysis results.

[0056] In some embodiments, the network architecture shown in FIG1 can be divided into a user plane and a control plane, wherein the user plane can be used to transmit data, such as data transmission through a user plane functional network element, and the control plane can be used to transmit signaling. For example, the portion above the dotted line in FIG1 can be referred to as the control plane, and the portion below the dotted line can be referred to as the user plane.

[0057] As an example, the name of the service-based interface provided by the control plane network function is expressed in the format of Nxxx, where xxx is the abbreviation of the English name of the corresponding network function, such as Nnef is the service-based interface provided by the network open function (NEF).

[0058] It should be understood that the above functional entities in the core network can also be referred to as network elements, and this application is not limited to this. For example, the UPF entity can also be referred to as a UPF network element, and the AMF entity can also be referred to as an AMF network element, etc.

[0059] It should also be understood that in some embodiments, the xx functional entity or xx network element may be directly referred to as xx. For example, the UPF entity (or UPF network element) may be referred to as UPF, and the AMF entity (or AMF network element) may be referred to as AMF. For the sake of convenience, xx (such as UPF, AMF, etc.) mentioned in the embodiments of this application may refer to the xx entity or xx network element, which will not be repeated hereafter.

[0060] In the network architecture shown in Figure 1, various components or functional entities can communicate with each other through interfaces. For example, a terminal device can establish an access stratum (AS) connection with the AN via the Uu interface, exchanging AS messages and wireless data transmission. A terminal device can establish a non-access stratum (NAS) connection with the AMF via the N1 interface, exchanging NAS messages. The AN can connect to the AMF via the N2 interface to transmit radio bearer control information from the core network to the AN. The UPF can transmit data with the AN via the N3 interface and with the DN via the N6 interface. The interfaces connecting other components or functional entities can be found in Figure 1 and will not be detailed here.

[0061] It should be understood that the network architecture shown above is only an exemplary illustration, and the network architecture applicable to the embodiments of the present application is not limited to this. Any network architecture that can realize the functions of the above-mentioned functional entities is applicable to the embodiments of the present application.

[0062] It should be understood that the access network equipment, AMF, SMF, UPF, and PCF shown in Figure 1 are just names, and the names do not limit the equipment themselves. In 5G networks and other future networks, the entities corresponding to the access network equipment, AMF, SMF, UPF, and PCF may also have other names, and this embodiment of the application does not specifically limit this.

[0063] It should be understood that the interface names between the functional entities shown in Figure 1 are only an example. In the specific implementation, the interface names between the functional entities can also be other names, such as the interface names between the functional entities in the 6G network. The embodiments of the present application do not make specific limitations on this.

[0064] It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0065] It should be understood that the network architecture described in the embodiments of the present application is intended to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art will know that with the evolution of the network architecture, the embodiments of the present application may also be applicable to similar technical problems.

[0066] AI

[0067] In recent years, artificial intelligence research represented by neural networks has achieved great results in many fields, and it will play an important role in people's production and life for a long time to come.

[0068] FIG2 is a schematic diagram of a neural network applicable to an embodiment of the present application. The neural network shown in FIG2 can be divided into three categories according to the positions of different layers: an input layer 210, a hidden layer 220, and an output layer 230. Generally speaking, the first layer is the input layer 210, the last layer is the output layer 230, and the intermediate layers between the first and last layers are all hidden layers 220. Samples can be input from the input layer 210, processed by the hidden layer 220, and the final result is generated in the output layer 230. Among them, each node represents a processing unit, which can be considered to simulate a neuron. Multiple neurons form a layer of a neural network, and multiple layers of information transmission and processing construct an overall neural network.

[0069] With the continuous development of neural network research, deep learning algorithms have been proposed in recent years, introducing a large number of hidden layers. This layer-by-layer training of multi-hidden neural networks for feature learning has greatly improved the learning and processing capabilities of neural networks and has been widely applied in pattern recognition, signal processing, optimization and combination, anomaly detection, and other fields.

[0070] Similarly, with the development of deep learning, convolutional neural networks have also been further studied. Figure 3 is a schematic diagram of a convolutional neural network to which an embodiment of the present application is applicable. The basic structure of a convolutional neural network may include: an input layer 310, multiple convolutional layers 320, multiple pooling layers 330, a fully connected layer 340, and an output layer 350. The introduction of the convolutional layer 320 and the pooling layer 330 effectively controls the sharp increase in network parameters, limits the number of parameters, and exploits the characteristics of the local structure, thereby improving the robustness of the algorithm.

[0071] AI and wireless communications

[0072] R18 proposes multiple use cases for applying AI to wireless communications, such as using AI / machine learning (ML) technology to compress and decompress channel state information (CSI), reducing air interface transmission overhead and improving the accuracy of CSI feedback information; using AI / ML technology to predict beam information in the time / spatial domain, reducing measurement overhead and latency, and improving beam selection accuracy; and using AI / ML technology to predict terminal device location information, improving the accuracy of terminal device location information in non-line of sight (NLOS) scenarios.

[0073] As an example, RAN1's ​​project includes research on AI / ML-enabled wireless air interface technologies. Key research use cases for this technology include combining AI with CSI feedback, AI with beam management, and AI with positioning technology.

[0074] Current wireless communication systems offer greater flexibility than ever before, emphasizing broad applicability across diverse scenarios and full utilization of limited resources. However, the fundamental principles underlying much of this work are still based on theoretical modeling of actual communication environments or simple parameter selection. The gains achieved by this basic approach are gradually diminishing in diverse and complex communication environments. To address this situation, it is necessary to adopt new methods and approaches, integrating them with traditional wireless communication theories and systems, to explore new approaches, break through performance bottlenecks, and further enhance the performance of wireless communication systems.

[0075] Therefore, based on the various use cases of AI in wireless communications (e.g., RAN1 use cases), RAN2 has proposed research on the lifecycle management of AI models. For example, AI model lifecycle management can include: model generation, model deployment, model transmission, model monitoring, model updates, and other aspects.

[0076] In some embodiments, the model may be generated in the core network or a third-party server. In these scenarios, the third-party server or core network needs to monitor the performance of the model on the terminal device side in real time to update the model in a timely manner to ensure the efficient operation of the communication system.

[0077] As an example, in the 5G system architecture, the core network element (NWDAF) has AI capabilities. The NWDAF is divided into two functions: the model training logical function (MTLF) and the analytics logical function (AnLF). MTLF is responsible for model training, while AnLF is responsible for model reasoning.

[0078] As an example, in the use case of using AI / ML technology to locate terminal devices, the following five solutions (cases) are proposed.

[0079] Solution 1: The terminal device has an AI model, so the terminal device can directly locate the location. In other words, the terminal device directly outputs the terminal device's location through the AI ​​model.

[0080] Solution 2a: LMF indirect positioning with the assistance of terminal devices. That is, the terminal device outputs measurement results through the AI ​​model and sends the measurement results to LMF. LMF calculates the terminal device's location using traditional algorithms.

[0081] Solution 2b: LMF direct positioning with the assistance of the terminal device. That is, the terminal device sends measurement data to the LMF, and the LMF side has an AI model to output the location of the terminal device.

[0082] Solution 3a: LMF indirect positioning assisted by next-generation RAN (NG-RAN). Specifically, the NG-RAN outputs measurement results through an AI model and sends them to the LMF, which then calculates the terminal device's location using traditional algorithms.

[0083] Solution 3b: NG-RAN-assisted LMF direct positioning. In other words, NG-RAN sends measurement data to LMF, which then uses an AI model to output the terminal device's location.

[0084] Positioning technology and location services

[0085] For ease of understanding, the following explanation is given using the location service (LCS) of the 5G system as an example.

[0086] The location process based on the 5G control plane includes the mobile called location request process, the mobile calling location request process, the deferred mobile called location request process, the location service opening process, the terminal device location privacy setting process and the auxiliary data broadcast process.

[0087] Mobile called party location request process: The process in which the LCS client or AF requests the current location of the target terminal device or the location at a certain time in the future.

[0088] Mobile caller location request process: The process in which the terminal device requests the system to locate it autonomously. The positioning result can also be sent to the recipient specified by the terminal device.

[0089] Deferred mobile called location request process: It can locate the target terminal device when a related event occurs (such as the terminal device enters or moves out of the target area) or when a given time arrives.

[0090] Location service opening process: defines the processing after the NEF receives a location service request from a network element within the network or an external AF.

[0091] Terminal device location privacy setting process: allows users to inform the network through the terminal device whether they are willing to be located; if not, the positioning process for the target terminal device will not be carried out (except for location requests for regulatory services).

[0092] Assistance data broadcast process: The terminal device can receive assistance data from the network through this process to further improve positioning accuracy; if the assistance data is encrypted, the terminal device can decrypt it using the key obtained from the network.

[0093] The location service based on the signaling interaction of the control plane function of the 5G network is an end-to-end process and belongs to the control plane location service. In the service-based location service architecture, the main network elements involved are RAN, UE (terminal equipment), NEF, AMF, NWDAF, positioning reference unit (PRU), location management function (LMF), gateway mobile location center (GMLC), location retrieval function (LRF), unified data repository (UDR), etc. As an example, Figure 4 shows the location service architecture of a service-based 5G system.

[0094] In Figure 4, Nxxx represents the service-oriented interface provided by the control plane network function. Le and N2 are interfaces between corresponding network elements. Terminal devices and network devices can interact with the LMF through protocols. For example, the LTE positioning protocol (LPP) can realize the interaction between terminal devices and LMF regarding position measurement quantities and position calculation results. For another example, the new radio positioning protocol a (NR positioning protocol a, NRPPa) is used to transmit positioning-related messages between the next generation RAN (NG-RAN) and the LMF.

[0095] Based on the architecture shown in Figure 4, the requester of the location service can be a UE, an LCS client, or an AF. The LCS client or the AF can request the location information of a single target device or a group of target devices.

[0096] When receiving a location service request from the NEF or GMLC, the 5G system first determines the AMF serving the target device, and the AMF determines the LMF serving the target device. The LMF can provide positioning accuracy and latency requirements based on the request. After the LMF selects the positioning method, it can trigger a specific positioning process. If the selected positioning method is a network-based method, the LMF is responsible for performing the positioning calculation (involving processes such as obtaining measurement information required for positioning calculation from the access network and the terminal) and feeding back the calculated location information. If a terminal device-based positioning method is selected, the terminal device will feed back the location information.

[0097] As mentioned earlier, research is currently underway into using AI for positioning. Using AI / ML technologies to predict the location of terminal devices can improve the accuracy of location information in NLOS scenarios. Furthermore, Release 18 proposes five positioning technologies.

[0098] However, the relevant communication systems only support traditional positioning technologies, such as time difference of arrival (TDOA)-based positioning and multi-round trip time (Multi-RTT)-based positioning. When the LMF determines which positioning technology to use, it usually selects from traditional positioning technologies, which may not support AI-based positioning technologies.

[0099] For example, the aforementioned solutions 2b and 3b require LMF to have an AI model to support AI positioning. To support these two positioning solutions, how LMF obtains the AI ​​model and how to use it to support positioning are both issues that need to be addressed.

[0100] For example, for Solution 1 and Solution 2a, how LMF knows that the terminal device has the ability of AI positioning, and thus determines whether the terminal device performs AI-based positioning, is also a problem that needs to be solved.

[0101] Based on this, embodiments of the present application provide a wireless communication method. Through this method, a core network element (e.g., LMF) can consider a positioning model located on the terminal device or LMF when determining the positioning method of the terminal device, thereby achieving positioning based on the positioning model and improving the accuracy of the terminal device's location information.

[0102] The wireless communication method provided in the embodiment of the present application is described in detail below with reference to Figures 5 to 8.

[0103] Figure 5 is a flow chart of a wireless communication method according to an embodiment of the present application. The method shown in Figure 5 includes step S510. This step is performed by the first network element and is described in detail below.

[0104] In step S510, the first network element determines a first positioning mode of the terminal device.

[0105] The terminal device may be any of the terminal devices described above. For example, the terminal device may be a target terminal device in positioning technology.

[0106] In some embodiments, the terminal device side may have an AI / ML-based positioning model, thereby implementing positioning based on the positioning model. For example, the terminal device may implement the positioning method described in Solution 1 above. In some embodiments, the terminal device may assist the positioning network element within the core network in performing AI / ML-based positioning. In other words, although the terminal device side does not have a positioning model, it has the ability to support AI positioning, such as collecting positioning parameters and providing measurement results. For example, the terminal device may implement the positioning method described in Solution 2b above.

[0107] The first network element may be a network element that determines the positioning technology corresponding to the terminal device. In some embodiments, the first network element may be a core network element related to positioning. For example, the first network element may be a LMF responsible for selecting the positioning method. In some embodiments, the first network element is a core network element capable of positioning the target device.

[0108] In some embodiments, the first network element may locate the terminal device or predict location information.

[0109] In some embodiments, the first network element side may have an AI / ML-based positioning model to implement AI model-based positioning. In some embodiments, the first network element may perform AI / ML-based positioning with the assistance of a terminal device or a network device.

[0110] The first positioning method of the terminal device refers to a method for positioning the terminal device or determining / predicting the location information of the terminal device. The positioning method may also be referred to as a positioning solution or positioning technology, which is not limited here.

[0111] The first positioning method includes positioning the terminal device based on a first positioning model. Alternatively, the first positioning method includes positioning the terminal device based on a first model, where the first model may be a model used for positioning. The first positioning model or the first model may be the AI / ML model described above.

[0112] In some embodiments, the first positioning method may be a direct positioning method or an indirect positioning method.

[0113] In some embodiments, the first positioning model may include a direct positioning model and an indirect positioning model to support different positioning methods.

[0114] In some embodiments, positioning the terminal device based on the first positioning model refers to determining location information of the terminal device using the first positioning model. The location information may be current location information or predicted location information.

[0115] It should be understood that the first positioning method is not limited to devices using the first positioning model. In other words, the first positioning method is applicable to any device that can use the first positioning model to locate the terminal device.

[0116] The first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element. For example, the first positioning model may be the second positioning model. For example, the first positioning model may be the third positioning model. For example, the first positioning model may include the second positioning model and the third positioning model.

[0117] The second positioning model deployed on the terminal device can be replaced with a second positioning model deployed on the terminal device side. In other words, the second positioning model is a model that can be used by the terminal device. In some embodiments, the second positioning model can be deployed within the terminal device, so that it can be directly called by the terminal device to predict location information. In some embodiments, the second positioning model is deployed in a device connected to the terminal device and can be called by the terminal device through an interface for positioning.

[0118] As an example, the second positioning model is an AI positioning model that can be directly used by the terminal device.

[0119] The third positioning model deployed on the first network element can be replaced with a third positioning model deployed on the first network element side. In some embodiments, the third positioning model is an AI model that can be directly used by the first network element. As an example, the third positioning model can be deployed within the first network element, so that it can be directly called by the first network element to perform location information prediction. As an example, the third positioning model can be deployed in a device connected to the first network element and can be called by the first network element through an interface for positioning.

[0120] Optionally, when the first network element is LMF, the third positioning model may be set on a functional entity deployed jointly with the LMF. For example, when the LMF is jointly deployed with AnLF in the NWDAF, the third positioning model may also be set on the AnLF.

[0121] In some embodiments, the first network element may select a first positioning method for the terminal device from a plurality of positioning methods. The plurality of positioning methods may include traditional positioning technology, AI-based positioning technology, and other positioning technologies in the process of improvement, which are not limited here.

[0122] In some embodiments, the first positioning method can be determined based on one or more of the following information: capability information of the terminal device; subscription information of the terminal device; and capability information of the first network element.

[0123] Optionally, the capability information of the terminal device includes whether the terminal device has a first capability for positioning based on a first positioning model, so that the first network element can better determine the first positioning method. In other words, the capability information of the terminal device includes positioning capability information of the terminal device. The first capability for positioning based on the first positioning model can also be referred to as an AI-based positioning capability.

[0124] As an example, the terminal device needs to report whether it has the first capability to the network, which will be described in detail later in conjunction with Figure 7.

[0125] As an example, the terminal device having the first capability may be equivalent to the terminal device supporting AI positioning.

[0126] As an example, when the capability information of the terminal device indicates that the terminal device has the first capability, the first positioning method may include the aforementioned solution 1 or solution 2a. For solution 1 or solution 2a, the first network element does not need to have a positioning model.

[0127] As an example, when the capability information of the terminal device indicates that the terminal device does not have the first capability, the first positioning method may include the aforementioned solution 2b, solution 3a or solution 3b. For these solutions, the terminal device does not need to have a positioning model.

[0128] Optionally, the contract information of the terminal device includes whether the terminal device is authorized to use positioning services based on the first positioning model. By defining the contract information of the terminal device on the network side, the network side can authorize the terminal device to use positioning services based on the first positioning model. Optionally, the contract information can also indicate that the network side authorizes the terminal device to use positioning services based on the first positioning model.

[0129] As an example, the subscription information of the terminal device may be stored in a third network element with a storage function, such as a UDM.

[0130] As an example, during the registration process of a terminal device, new contract information can be added to the third network element to implement the authorization of the terminal device to use the positioning services related to the first positioning model in the embodiments of the present application. For example, to complete the registration process, the core network needs to retrieve the contract information stored in the third network element to authorize the terminal device to perform positioning services based on the first positioning model. The process of the core network retrieving contract information from the third network element will be illustrated below with reference to Figure 7.

[0131] As an example, artificial intelligence (AI) positioning contract data can be added to the contract information of the terminal device. Further, the AI ​​positioning contract data can be indicated by a first domain. The first domain can be an AI positioning service authorization domain.

[0132] As a possible implementation manner, the definition of the subscription information related to the terminal device and the first positioning model positioning can be shown in Table 1.

[0133] Table 1

[0134] As an example, the contract information for authorizing the use of the positioning service based on the first positioning model may also be included in the existing contract information. In other words, the UDM may not add new contract information, but may add relevant indications to the existing contract information.

[0135] As an example, if the terminal device is not authorized to use the positioning service based on the first positioning model, the positioning method of the terminal device does not include a method that requires using these positioning services for positioning.

[0136] As an example, when there is a positioning service that can be authorized for the terminal device to use in the contract information of the terminal device, even if there is no first capability information of the terminal device in the registration information, the first network element can also determine that the first positioning method is other positioning methods other than Solution 1 and Solution 2a described above. Other positioning methods do not require enhancement of the terminal device, nor do they require additional parameters to be notified to the terminal device. In other words, even if the terminal device does not have the first capability, as long as it is authorized to use the positioning service based on the positioning model, the terminal device can be positioned using the positioning method based on the first positioning model.

[0137] Optionally, the capability information of the first network element may indicate whether the first network element has the capability to perform positioning based on the first positioning model, so that the first network element can determine the first positioning method. For example, when the capability information of the first network element indicates that the first network element has the capability to perform positioning based on the first positioning model, the first positioning method may be Solution 2b or Solution 3b described above. For another example, the capability information of the first network element may indicate that the first network element supports the positioning method based on the first positioning model. In other words, even if the first network element does not have the capability to perform positioning based on the first positioning model, it can still be used to perform positioning.

[0138] As an example, the first network element can obtain a positioning model from the NWDAF, so that the first network element performs direct positioning and / or indirect positioning based on the first positioning model. As previously described, the positioning model deployed on the first network element is the third positioning model. The process of the first network element obtaining the third positioning model will be exemplified below with reference to FIG6 .

[0139] Optionally, the capability information of the terminal device and the first network element may indicate the deployment location of the first positioning model. For positioning models deployed at different locations, the first network element may determine the first positioning mode according to different information.

[0140] As an example, when the first positioning model is the second positioning model, the first positioning method is determined based on at least one of the terminal device's capability information and the terminal device's subscription information. In other words, when the terminal device has a positioning model, the first network element may not consider its own capabilities when determining the first positioning method.

[0141] As an example, when the first positioning model is the third positioning model, the first positioning method is determined based on at least one of the terminal device's capability information, the terminal device's subscription information, and the first network element's capability information. In other words, when the terminal device does not have a positioning model, the first network element needs to consider the terminal device and its own capabilities when determining the first positioning method.

[0142] In some embodiments, the first network element may further determine the first positioning mode based on a positioning requirement of the terminal device. The positioning requirement of the terminal device may be, for example, a positioning accuracy requirement of the terminal device. When the positioning accuracy requirement is high, a model with a higher accuracy is selected from multiple positioning models.

[0143] In some embodiments, the first network element may perform step S510 based on a positioning request for the terminal device.

[0144] As an example, a first network element may receive a positioning request sent by another network element. For example, the first network element may receive a first request sent by a second network element. The first request is used to request positioning of a terminal device. This will be described later in conjunction with the second network element side.

[0145] As an example, the first network element may receive a location request for the terminal device from the terminal device or a third-party device to execute step S510.

[0146] In some embodiments, the first network element may perform step S510 based on the positioning request of the second network element.

[0147] In some embodiments, after executing step S510, the first network element may perform positioning of the terminal device according to the first positioning method. For example, the first network element may perform a positioning process together with the terminal device to determine the location information of the terminal device.

[0148] In some embodiments, the first network element may feed back the location information of the terminal device to the network element or device that sends the positioning request. Exemplarily, the first network element sends the location information of the terminal device to the second network element.

[0149] As shown in Figure 5, the first network element can determine the first positioning method based on the first capability of the terminal device and its own capability information, thereby positioning the terminal device based on the positioning model and improving the accuracy of the terminal device positioning. When the first positioning method is Solution 2b or Solution 3b, the first network element is required to have the ability to perform positioning based on the first positioning model (for example, AI capability).

[0150] The model deployed on the first network element is the third positioning model. When the third positioning model is deployed on the first network element, the first network element can directly call the positioning model to locate the target device, thereby more effectively performing positioning based on the positioning model. To enable the first network element to support AI positioning, the embodiment of the present application also proposes a communication method that enables the first network element to obtain the third positioning model.

[0151] As mentioned above, the NWDAF has AI capabilities. Considering the deployment method of the 5G system architecture, the NWDAF can send the trained model to the first network element so that the first network element can execute the solution 2b or solution 3b described above.

[0152] In some embodiments, the first network element may directly request the third positioning model from the NWDAF.

[0153] In some embodiments, the first network element can be jointly deployed with the AnLF in the NWDAF to minimize the impact on the 5G network architecture. When the first network element is deployed with the AnLF, a third positioning model can be obtained through the interaction between the AnLF and the MTLF.

[0154] As an example, when LMF and AnLF are deployed together, the interface between LMF and AnLF is internally implemented, while AnLF and MTLF can use existing interfaces and services for model interaction.

[0155] As an example, the third positioning model can be trained in MTLF. MTLF can send the trained model to AnLF, which can then perform inference in conjunction with LMF.

[0156] In some embodiments, when the first network element needs a third positioning model, the first network element may send a second request to the MTLF via the AnLF. The second request is used to request the third positioning model, and thus may also be referred to as an AI model positioning request.

[0157] As an example, the second request may further include a required model type, that is, the model type of the third positioning model. Exemplarily, the third positioning model may be a direct positioning model and / or an indirect positioning model.

[0158] In some embodiments, if the MTLF does not have a trained model available for direct use, the MTLF returns a third request to the AnLF. The AnLF may forward the request to the first network element. The third request is used to request positioning parameters for training a third positioning model, and may also be referred to as an AI positioning model data collection request.

[0159] In some embodiments, the first network element may request the terminal device and / or the network device to collect positioning parameters. For example, the first network element may interact with the terminal device and the network device through the existing LPP / NRPPa protocol to obtain the training parameters.

[0160] As an example, the network device may be a network device corresponding to the terminal device. The network device corresponding to the terminal device may be a network device currently providing services to the terminal device, or a network device storing relevant data of the terminal device.

[0161] As an example, the first network element may send a fourth request to the first device. The fourth request is used to collect positioning parameters and may also be referred to as a positioning parameter collection request. The first device may be a terminal device or a network device. When the first device is a terminal device, the fourth request is transmitted via the LPP protocol; when the first device is a network device corresponding to the terminal device, the fourth request is transmitted via the NRPPa protocol.

[0162] In some embodiments, the first network element may receive positioning parameters collected by the terminal device or the network device through different protocols, and then send the collected positioning parameters to the MTLF through the AnLF.

[0163] As an example, when the first device is a terminal device, the positioning parameters are transmitted through the LPP protocol; when the first device is a network device corresponding to the terminal device, the positioning parameters are transmitted through the NRPPa protocol.

[0164] As an example, when the amount of data on the terminal device side is large, the LPP protocol can also be carried on the user plane. In other words, the positioning parameters can be transmitted to the first network element through the UPF.

[0165] In some embodiments, the MTLF trains the third positioning model required by the first network element based on the collected data and returns it to the first network element through the AnLF. After the first network element deploys the positioning model, it can lay the foundation for the subsequent second network element to select a positioning network element with AI capabilities.

[0166] For ease of understanding, the following exemplary description of the process of the first network element obtaining the third positioning model is provided in conjunction with Figure 6. Figure 6 is an introduction from the perspective of interaction between multiple network elements and devices. The terminal device may be a UE, and the network device may be a (R)AN.

[0167] 6 , in step S610 , the first network element sends an AI positioning model request, ie, a second request, to the MTLF through the AnLF.

[0168] In step S620, when the MTLF does not have a trained model, it returns an AI positioning model data collection request, that is, a third request, to the first network element through the AnLF.

[0169] In step S630a, if the model training requires measurement data on the network device side, the first network element sends an AI positioning parameter collection request, i.e., a fourth request, to the network device through the NRPPa protocol.

[0170] In step S630b, if the model training requires measurement data on the terminal device side, the first network element sends an AI positioning parameter collection request, i.e., a fourth request, to the terminal device through the LPP protocol.

[0171] In step S640a, the network device returns positioning-related training data, namely, AI positioning parameter response, through the NRPPa protocol.

[0172] In step S640b, the terminal device returns positioning-related training data, namely, AI positioning parameter response, through the LPP protocol.

[0173] In step S650, the first network element sends the collected data to the MTLF via the AnLF, that is, the AI ​​positioning model data reply.

[0174] In step S650, the MTLF trains a third positioning model required by the first network element based on the collected data, including a direct positioning model and / or an indirect positioning model.

[0175] In step S670, the MTLF returns the trained model to the first network element through the AnLF.

[0176] The above description, combined with Figures 5 and 6, describes an embodiment of the present application from the perspective of the first network element. As can be seen from the foregoing, the first network element determines the first positioning method based on the positioning request from the second network element. For the second network element, how to select the first network element and how to support positioning based on the first positioning model are also technical issues that can be addressed by the embodiments of the present application.

[0177] The following describes embodiments of the present application from the perspective of a second network element and a terminal device. In some embodiments, the second network element may be a network element responsible for terminal device access and mobility management. For example, the second network element may be an AMF. In some embodiments, the second network element may be one of the core network elements that selects a device for locating the terminal device.

[0178] As can be seen from the foregoing, the second network element can send a first request to the first network element to request the first network element to locate the terminal device. The second network element can generate the first request based on the location request of the terminal device from other network elements or devices. For example, the location request for the terminal device can come from the terminal device or from a third-party device. The third-party device is, for example, an AF or an external client.

[0179] As an example, the second network element receives a sixth request from the second device to generate the first request. The sixth request is a positioning request of the terminal device, which is used to request location information of the terminal device. The second device may include the terminal device and / or a third-party device.

[0180] As an example, the sixth request may also carry the positioning accuracy requirement of the terminal device and the time requirement for returning the positioning result, so as to determine an appropriate first positioning method.

[0181] As an example, after the second network element receives the location information of the terminal device sent by the first network element, the second network element may send the location information of the terminal device to the terminal device and / or a third-party device.

[0182] In some embodiments, the first request may include capability information of the terminal device and / or subscription information of the terminal device, so that the first network element determines the first positioning method based on this information.

[0183] As an example, when the subscription information of the terminal device is sent from the second network element to the first network element, it can also be represented as the authorization information of the terminal device. The authorization information of the terminal device is determined and stored by the second network element, and an exemplary description is given below in conjunction with FIG. 7 .

[0184] The capability information of the terminal device may be reported by the terminal device to the second network element. In some embodiments, after the second network element has stored the capability information of the terminal device, it may also directly send the stored capability information to the first network element through the first request.

[0185] In some embodiments, the terminal device may report whether it has the first capability to the network through first information. The first information may indicate that the terminal device has the capability of positioning based on the positioning model, so that the first network element and the second network element support positioning based on the first positioning model.

[0186] As an example, the second network element receives first information sent by the terminal device. The first information is used to indicate capability information of the terminal device. The capability information of the terminal device includes whether the terminal device has a first capability of performing positioning based on a first positioning model.

[0187] In some embodiments, the first information may further indicate one or more of the following: whether the first capability is a direct positioning capability or an indirect positioning capability; an implementation condition of the first capability; and related parameters of the first capability.

[0188] As an example, the first information may further indicate whether the terminal device has direct positioning capability or indirect positioning capability, so that the first network element can determine the first positioning method. For example, direct positioning capability corresponds to Solution 1 of the positioning model-based positioning solution described above. For another example, indirect positioning capability corresponds to Solution 2a of the positioning model-based positioning solution described above.

[0189] In some embodiments, when the first positioning model is the second positioning model, the terminal device's capability information also includes parameters of the second positioning model. As previously mentioned, when the positioning model is deployed on the terminal device side, the positioning model is the second positioning model. When the terminal device side has the second positioning model, the first information may also include model parameters of the second positioning model to facilitate the first network element's determination of the first positioning mode.

[0190] As an example, the first information may also indicate a condition of the first capability possessed by the terminal device, for example, in which time period or at which locations the terminal device can support positioning based on the first positioning model.

[0191] As an example, the first information may also indicate a parameter related to the first capability, such as positioning accuracy.

[0192] In some embodiments, the first information may be registration request information of the terminal device. That is, the terminal device may send the first information when registering so that the second network element can store the capability information of the terminal device as soon as possible.

[0193] As an example, the registration request message includes a 5G mobility management (MM) capability parameter. The 5G MM capability parameter may include information about the first capability.

[0194] In some embodiments, after receiving the first information, the second network element may send a fifth request to the third network element. The fifth request is used to request the contract information of the terminal device mentioned above. Then, the second network element receives the contract information of the terminal device sent by the third network element.

[0195] In some embodiments, the second network element may determine whether the terminal device is authorized to use the positioning service based on the first positioning model based on the capability information and subscription information of the terminal device. Further, the second network element may store the capability information and subscription information.

[0196] As an example, when the second network element determines that the terminal device is authorized to use the positioning service based on the first positioning model, the second network element may send authorization information to the terminal device. Exemplarily, the second network element may send the authorization information by sending a registration acceptance message.

[0197] For example, when the terminal device has the first capability and the contract information of the terminal device indicates that the terminal device is authorized to use the positioning service based on the first positioning model, the second network element sends authorization information to the terminal device.

[0198] As an example, the second network element may also send information that the terminal device is authorized to use the positioning service based on the first positioning model to the network device, so that the network device can execute the positioning method based on solution 3a.

[0199] As an example, the second network element sends authorization information to the network device corresponding to the terminal device, wherein the authorization information is carried in a next generation application protocol (NGAP) message.

[0200] The above describes how the second network element determines the terminal device capability information and subscription information. For ease of understanding, the following exemplary illustration is provided with reference to Figure 7. Figure 7 illustrates the interaction between the terminal device, the network device (NG-RAN), the second network element, and the third network element.

[0201] Referring to Figure 7, in step S710, the terminal device sends a registration request message to the second network element. The registration information sent by the terminal device may include 5GMM capability parameters. The 5GMM capability parameters may include AI positioning capability parameters, i.e., parameters related to the first capability.

[0202] In step S720, the second network element sends a subscription information request, ie, a fifth request, to the third network element. Exemplarily, the second network element may obtain the subscription information of the terminal device from the third network element through an identity (ID) of the terminal device.

[0203] In step S730, the third network element replies to the second network element with the subscription information of the terminal device. The reply information may include the ID of the terminal device and subscription information related to the terminal device and positioning based on the first positioning model (AI positioning).

[0204] In step S740, the second network element determines whether the terminal device is authorized to use the AI-based positioning service based on the capability information (capability parameters) reported by the terminal device and the terminal device subscription information obtained from the third network element. Furthermore, the second network element may also store the capability information that the terminal device can support AI positioning.

[0205] In step S750a, the second network element sends information authorizing the terminal device to use the AI ​​positioning service, that is, authorization information of the terminal device, to the network device through an NGAP message.

[0206] In step S750b, the second network element sends a registration acceptance message to the terminal device, which authorizes the terminal device to use the AI ​​positioning service.

[0207] The first capability of the terminal device defined in the embodiment of the present application is introduced above in conjunction with Figure 7. In the subsequent positioning process, the second network element can select the LMF that meets the conditions to determine the first network element based on the information stored in this process, so that the network can correctly execute the positioning process based on the first positioning model.

[0208] In some embodiments, the second network element may determine the first network element among multiple network elements based on one or more of the following information: capability information of the terminal device; subscription information of the terminal device; and capability information of multiple network elements.

[0209] In some embodiments, the multiple network elements may all be positioning-related network elements. For example, the multiple network elements may be multiple LMFs.

[0210] In some embodiments, the capability information of the plurality of network elements may be a new capability supported by the network element, that is, a capability of positioning based on the first positioning model. As mentioned above, the capability of positioning based on the first positioning model may also be referred to as an AI positioning capability.

[0211] As an example, the capability information of multiple network elements may include the capability of the network elements to support direct positioning and / or the capability of supporting indirect positioning.

[0212] In some embodiments, the capability information of the plurality of network elements is determined by the capability information of some or all of the plurality of network elements that has been configured by the second network element. In other words, some or all of the plurality of network elements have configured information on the second network element regarding whether they support AI positioning capabilities. The second network element can determine the capability information of some or all of the plurality of network elements through local configuration.

[0213] In some embodiments, the capability information of multiple network elements is configured on other network elements. The other network elements are, for example, network resource routing (NRF). The second network element can determine the capability information of the multiple network elements through the NRF. For example, the second network element can request the NRF for multiple network elements that meet the conditions. After the NRF feeds back the addresses of the network elements that meet the conditions, the second network element can determine the capability information of the multiple network elements.

[0214] In some embodiments, the plurality of network elements are determined by configuration of the second network element and / or NRF. That is, the second network element can discover the plurality of network elements that can support AI positioning capabilities through local configuration or through NRF.

[0215] As an example, when there is only one positioning network element that meets the conditions, the positioning network element is the first network element.

[0216] In some embodiments, if the second network element stores information that the terminal device can support the first capability, and the second network element authorizes the terminal device to perform services based on the first positioning model according to the contract information, the second network element can select an LMF that does not need to support AI positioning capabilities as the first network element. If the terminal device information stored in the second network element does not include information that the terminal device supports the first capability, and the terminal device is authorized to perform services based on the first positioning model according to the contract information, the second network element can select an LMF that can support AI capabilities as the first network element.

[0217] In some embodiments, when the first positioning model is the third positioning model, the first network element is determined by the second network element through initial selection or reselection from multiple network elements. In other words, when the first positioning method is based on the third positioning model deployed on the first network element, the process of the second network element selecting the first network element may include initial selection and reselection.

[0218] As an example, the second network element initially selects an LMF that does not support AI capabilities as the first network element. However, based on the terminal device's positioning accuracy and time requirements, the LMF determines that AI-based positioning is necessary. In this scenario, the LMF returns an indication to the second network element that positioning cannot be met. Based on this indication, the second network element reselects an LMF that meets the requirements as the first network element.

[0219] For ease of understanding, an exemplary description is provided below in conjunction with Figure 8. The method shown in Figure 8 is described from the perspective of multiple device interactions, wherein the application function / external client may also be referred to as a third-party device.

[0220] Referring to Figure 8 , in steps S810a and S810b, the terminal device, application function, or external client may each send a terminal device positioning request (i.e., a sixth request) to the second network element. When the terminal device or a third party wishes to know the terminal device's location, the terminal device positioning request may be sent to the second network element. This request includes the positioning accuracy requirement and the time required for the positioning result to be returned.

[0221] In step S820, the second network element selects a first network element based on the terminal device's subscription information and capability information, as well as capability information of multiple network elements. The first network element may be a qualified LMF. The selection of the first network element may include preliminary selection and / or reselection. Furthermore, the terminal device's capability information, subscription information, and authorization information may be information stored by the second network element. The capability information of the multiple network elements may be pre-configured by the second network element or determined by the NRF.

[0222] In step S830, the second network element sends a positioning request, i.e., a first request, to the first network element. The first request may include the AI ​​capability information of the terminal device, authorization information, the positioning accuracy requirement of the terminal device, and the time requirement for returning the positioning result.

[0223] In step S840, the first network element determines the positioning method to be executed, that is, the first positioning method, based on its own capabilities, the first capability information and authorization information of the terminal device, the positioning accuracy requirements of the terminal device, and the time requirements for returning the positioning results.

[0224] In step S850, the terminal device and the first network element perform a positioning process, which is a first positioning process.

[0225] In step S860, the first network element sends the location information of the terminal device to the second network element, that is, the first request response.

[0226] In step S870a and step S870b, the second network element sends the location information of the terminal device to the terminal device and the third-party device, that is, the terminal device positioning request response.

[0227] The positioning method shown in Figure 8 is a complete process architecture. Based on this structure, the AI-based positioning solutions 1, 2a, 2b, and 3b described above can be implemented. As can be seen, in this positioning method, the second network element can select and reselect the first network element based on specific parameters, capability information, etc., thereby flexibly meeting the AI-based positioning methods in different scenarios.

[0228] In the method of the embodiment of the present application, the AI ​​positioning capability and contract information of the terminal device are introduced. The selection and reselection of the first network element by the second network element realizes the positioning method in which the first network element supports AI positioning. Furthermore, the embodiment of the present application designs a complete process architecture to realize the support of the core network and terminal devices for multiple AI positioning methods. Specifically, by introducing multiple aspects such as the AI ​​positioning capability parameters of the terminal device, the contract data of the terminal device, and the AI ​​positioning capability supported by the LMF, a complete process architecture that can support multiple positioning scenarios is designed. Based on this method, when the traditional positioning accuracy is insufficient, the terminal device and the core network can accurately execute the AI-based positioning method, thereby improving the positioning accuracy.

[0229] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 8. The device embodiment of the present application is described in detail below in conjunction with Figures 9 to 13. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for portions not described in detail, reference can be made to the above method embodiment.

[0230] FIG9 is a schematic structural diagram of a core network element provided in an embodiment of the present application. The core network element 900 may be a first network element. The core network element 900 may include a determining unit 910.

[0231] Determination unit 910 can be used to determine a first positioning method of the terminal device, where the first positioning method includes a method of positioning the terminal device based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0232] In some embodiments, the first positioning method is determined based on one or more of the following information: capability information of the terminal device; subscription information of the terminal device; and capability information of the first network element.

[0233] In some embodiments, when the first positioning model is the second positioning model, the first positioning mode is determined according to at least one of capability information of the terminal device and contract information of the terminal device.

[0234] In some embodiments, when the first positioning model is the third positioning model, the first positioning method is determined according to at least one of capability information of the terminal device, subscription information of the terminal device, and capability information of the first network element.

[0235] In some embodiments, the core network element 900 also includes a first receiving unit for receiving a first request sent by a second network element, where the first request is used to request positioning of the terminal device; wherein the first request includes capability information of the terminal device and / or contract information of the terminal device.

[0236] In some embodiments, the core network element 900 further includes a first sending unit, which can be used to send the location information of the terminal device to the second network element.

[0237] In some embodiments, the capability information of the terminal device includes whether the terminal device has a first capability of performing positioning based on a first positioning model.

[0238] In some embodiments, the subscription information of the terminal device includes whether the terminal device is authorized to use the positioning service based on the first positioning model.

[0239] In some embodiments, the core network element 900 further includes a second sending unit, which can be used to send a second request to the model training logic function through the analysis logic function, where the second request is used to request a third positioning model.

[0240] In some embodiments, the second request includes a model type of the third positioning model.

[0241] In some embodiments, the first network element is jointly deployed with the analysis logic function.

[0242] In some embodiments, the core network element 900 further includes a second receiving unit, which can be used to receive a third request sent by the model training logic function through the analysis logic function, where the third request is used to request positioning parameters for training a third positioning model.

[0243] In some embodiments, the core network element 900 further includes a third sending unit, which can be used to send a fourth request to the first device, where the fourth request is used to collect positioning parameters.

[0244] In some embodiments, when the first device is a terminal device, the fourth request is transmitted through the LTE positioning protocol; when the first device is a network device corresponding to the terminal device, the fourth request is transmitted through the new air interface positioning protocol a.

[0245] In some embodiments, when the first device is a terminal device, the positioning parameters are transmitted through the LTE positioning protocol; when the first device is a network device corresponding to the terminal device, the positioning parameters are transmitted through the new air interface positioning protocol a.

[0246] In some embodiments, the core network element 900 further includes a third receiving unit, which can be used to receive positioning parameters; and a fourth sending unit, which can be used to send positioning parameters to the model training logic function through the analysis logic function.

[0247] In some embodiments, the first positioning model is an artificial intelligence model.

[0248] In some embodiments, the first network element is a location management function.

[0249] FIG10 is a schematic structural diagram of another core network element provided in an embodiment of the present application. The core network element 1000 may be a second network element. The core network element 1000 may include a first sending unit 1010.

[0250] The first sending unit 1010 can be used to send a first request to the first network element, where the first request is used to request positioning of the terminal device; wherein the first request is also used by the first network element to determine a first positioning method for the terminal device, where the first positioning method includes a method for positioning the terminal device based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0251] In some embodiments, the first positioning method is determined based on one or more of the following information: capability information of the terminal device; subscription information of the terminal device; and capability information of the first network element.

[0252] In some embodiments, when the first positioning model is the second positioning model, the first positioning mode is determined according to at least one of capability information of the terminal device and contract information of the terminal device.

[0253] In some embodiments, when the first positioning model is the third positioning model, the first positioning method is determined according to at least one of capability information of the terminal device, subscription information of the terminal device, and capability information of the first network element.

[0254] In some embodiments, the first request includes capability information of the terminal device and / or subscription information of the terminal device.

[0255] In some embodiments, the core network element 1000 also includes a first receiving unit, which can be used to receive first information sent by a terminal device, where the first information is used to indicate capability information of the terminal device, and the capability information of the terminal device includes whether the terminal device has a first capability for positioning based on a first positioning model.

[0256] In some embodiments, the first information is further used to indicate one or more of the following: whether the first capability is a direct positioning capability or an indirect positioning capability; an implementation condition of the first capability; and related parameters of the first capability.

[0257] In some embodiments, the first information is registration request information of the terminal device.

[0258] In some embodiments, the core network element 1000 also includes a second sending unit, which can be used to send a fifth request to the third network element, where the fifth request is used to request the contract information of the terminal device, and the contract information is used to indicate whether the terminal device is authorized to use the positioning service based on the first positioning model.

[0259] In some embodiments, the contract information includes artificial intelligence positioning contract data.

[0260] In some embodiments, the artificial intelligence positioning contract data is indicated through a first domain, and the first domain is an artificial intelligence positioning service authorization domain.

[0261] In some embodiments, the core network network element 1000 also includes a second receiving unit, which can be used to receive the contract information of the terminal device sent by the third network element; the third sending unit can be used to send authorization information to the terminal device when the terminal device has the first capability and the contract information of the terminal device indicates that the terminal device is authorized to use the positioning service based on the first positioning model.

[0262] In some embodiments, the core network element 1000 further includes a fourth sending unit, which can be used to send authorization information to the network device corresponding to the terminal device; wherein the authorization information is carried in a next generation application protocol message.

[0263] In some embodiments, the first network element is one of multiple network elements related to positioning, and the core network network element 1000 also includes a determination unit, which can be used to determine the first network element among multiple network elements based on one or more of the following information: capability information of the terminal device; contract information of the terminal device; and capability information of multiple network elements.

[0264] In some embodiments, the capability information of the plurality of network elements is determined by capability information of some or all of the plurality of network elements configured by the second network element.

[0265] In some embodiments, when the first positioning model is the third positioning model, the first network element is determined by preliminary selection or reselection of the second network element among multiple network elements.

[0266] In some embodiments, the plurality of network elements is determined by configuration and / or network storage functionality of the second network element.

[0267] In some embodiments, before the second network element sends the first request to the first network element, the core network network element 1000 also includes a third receiving unit, which can be used to receive a sixth request sent by the second device, and the sixth request is used to request the location information of the terminal device; wherein the second device includes a terminal device and / or a third-party device.

[0268] In some embodiments, the core network element 1000 further includes a fourth receiving unit, which can be used to receive the location information of the terminal device sent by the first network element; and a fifth sending unit, which can be used to send the location information of the terminal device to the terminal device and / or a third-party device.

[0269] In some embodiments, the first positioning model is an artificial intelligence model.

[0270] In some embodiments, the second network element is an access and mobility management function.

[0271] FIG11 is a schematic structural diagram of a terminal device provided in an embodiment of the present application. The terminal device 1100 may include a first sending unit 1110 .

[0272] The first sending unit 1110 can be used to send first information to the second network element, where the first information is used to indicate capability information of the terminal device, where the capability information of the terminal device includes whether the terminal device has a first capability for positioning based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0273] In some embodiments, the first information is further used to indicate one or more of the following: whether the first capability is a direct positioning capability or an indirect positioning capability; an implementation condition of the first capability; and related parameters of the first capability.

[0274] In some embodiments, the first information is registration request information of the terminal device.

[0275] In some embodiments, when the first positioning model is the second positioning model, the capability information of the terminal device also includes parameters of the second positioning model.

[0276] In some embodiments, the terminal device 1100 further includes a first receiving unit, which can be used to receive authorization information sent by the second network element, where the authorization information is used to indicate that the terminal device is authorized to use the positioning service based on the first positioning model.

[0277] In some embodiments, the terminal device 1100 also includes a second sending unit, which can be used to send a sixth request to the second network element, where the sixth request is used to request the location information of the terminal device; and a second receiving unit, which can be used to receive the location information of the terminal device sent by the second network element.

[0278] In some embodiments, the first positioning model is an artificial intelligence model.

[0279] FIG12 is a schematic structural diagram of another core network element provided in an embodiment of the present application. The core network element 1200 may be a third network element and may include a receiving unit 1210.

[0280] Receiving unit 1210 can be used to receive a fifth request sent by the second network element, where the fifth request is used to request the contract information of the terminal device, and the contract information is used to indicate whether the terminal device is authorized to use the positioning service based on the first positioning model. The first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

[0281] In some embodiments, the contract information includes artificial intelligence positioning contract data.

[0282] In some embodiments, the artificial intelligence positioning contract data is indicated through a first domain, and the first domain is an artificial intelligence positioning service authorization domain.

[0283] In some embodiments, the core network element 1200 further includes a sending unit, which can be used to send the subscription information of the terminal device to the second network element.

[0284] In some embodiments, the first positioning model is an artificial intelligence model.

[0285] In some embodiments, the third network element is a unified data management entity.

[0286] Figure 13 is a schematic block diagram of a communication device according to an embodiment of the present application. Dashed lines in Figure 13 indicate that the unit or module is optional. Device 1300 may be used to implement the method described in the above method embodiment. Device 1300 may be a chip, a terminal device, or a core network device.

[0287] The device 1300 may include one or more processors 1310. The processor 1310 may support the device 1300 to implement the method described in the method embodiment above. The processor 1310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0288] The apparatus 1300 may further include one or more memories 1320. The memories 1320 store programs that can be executed by the processor 1310, causing the processor 1310 to perform the methods described in the above method embodiments. The memories 1320 may be independent of the processor 1310 or integrated into the processor 1310.

[0289] The apparatus 1300 may further include a transceiver 1330. The processor 1310 may communicate with other devices or chips via the transceiver 1330. For example, the processor 1310 may transmit and receive data with other devices or chips via the transceiver 1330.

[0290] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the core network element and / or terminal device provided in the embodiments of the present application, and the program causes a computer to execute the methods performed by the core network element and / or terminal device in various embodiments of the present application.

[0291] The present application also provides a computer program product. This computer program product includes a program. This computer program product can be applied to the core network element and / or terminal device provided in the embodiments of the present application, and the program causes a computer to execute the methods performed by the core network element and / or terminal device in various embodiments of the present application.

[0292] The present application also provides a computer program that can be applied to the core network element and / or terminal device provided in the present application, and enables a computer to execute the methods performed by the core network element and / or terminal device in various embodiments of the present application.

[0293] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0294] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0295] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0296] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0297] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0298] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0299] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0300] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0301] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0302] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0303] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0304] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0305] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The first network element determines a first positioning method for the terminal device, the first positioning method includes a method for positioning the terminal device based on a first positioning model, the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

2. The method according to claim 1, characterized in that The first positioning method is determined based on one or more of the following information: capability information of the terminal device; The contract information of the terminal device; and capability information of the first network element.

3. The method according to claim 1 or 2, characterized in that When the first positioning model is the second positioning model, the first positioning mode is determined according to at least one of capability information of the terminal device and contract information of the terminal device.

4. The method according to claim 1 or 2, characterized in that When the first positioning model is the third positioning model, the first positioning method is determined according to at least one of capability information of the terminal device, subscription information of the terminal device, and capability information of the first network element.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: The first network element receives a first request sent by the second network element, where the first request is used to request positioning of the terminal device; The first request includes capability information of the terminal device and / or contract information of the terminal device.

6. The method according to claim 5, characterized in that The method further comprises: The first network element sends the location information of the terminal device to the second network element.

7. The method according to any one of claims 1 to 6, characterized in that The capability information of the terminal device includes whether the terminal device has a first capability of performing positioning based on the first positioning model.

8. The method according to any one of claims 1 to 7, characterized in that The contract information of the terminal device includes whether the terminal device is authorized to use the positioning service based on the first positioning model.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: The first network element sends a second request to the model training logic function through the analysis logic function, where the second request is used to request the third positioning model.

10. The method according to claim 9, characterized in that The second request includes a model type of the third positioning model.

11. The method according to claim 9 or 10, characterized in that The first network element is jointly deployed with the analysis logic function.

12. The method according to any one of claims 9 to 11, characterized in that The method further comprises: The first network element receives a third request sent by the model training logic function through the analysis logic function, where the third request is used to request positioning parameters for training the third positioning model.

13. The method according to claim 12, characterized in that The method further comprises: The first network element sends a fourth request to the first device, where the fourth request is used to collect the positioning parameters.

14. The method according to claim 13, characterized in that When the first device is the terminal device, the fourth request is transmitted through the Long Term Evolution (LTE) positioning protocol; when the first device is the network device corresponding to the terminal device, the fourth request is transmitted through the new air interface positioning protocol a.

15. The method according to claim 13 or 14, characterized in that When the first device is the terminal device, the positioning parameters are transmitted through the LTE positioning protocol; when the first device is the network device corresponding to the terminal device, the positioning parameters are transmitted through the new air interface positioning protocol a.

16. The method according to any one of claims 12 to 15, characterized in that The method further comprises: The first network element receives the positioning parameter; The first network element sends the positioning parameters to the model training logic function through the analysis logic function.

17. The method according to any one of claims 1 to 16, characterized in that The first positioning model is an artificial intelligence model.

18. The method according to any one of claims 1 to 17, characterized in that The first network element is a location management function.

19. A wireless communication method, characterized in that: include: The second network element sends a first request to the first network element, where the first request is used to request positioning of the terminal device; Among them, the first request is also used by the first network element to determine a first positioning method for the terminal device, the first positioning method includes a method for positioning the terminal device based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

20. The method according to claim 19, characterized in that The first positioning method is determined based on one or more of the following information: capability information of the terminal device; The contract information of the terminal device; and capability information of the first network element.

21. The method according to claim 19 or 20, characterized in that When the first positioning model is the second positioning model, the first positioning mode is determined according to at least one of capability information of the terminal device and contract information of the terminal device.

22. The method according to claim 19 or 20, characterized in that When the first positioning model is the third positioning model, the first positioning method is determined according to at least one of capability information of the terminal device, subscription information of the terminal device, and capability information of the first network element.

23. The method according to any one of claims 19 to 22, characterized in that The first request includes capability information of the terminal device and / or subscription information of the terminal device.

24. The method according to any one of claims 19 to 23, wherein: The method further comprises: The second network element receives first information sent by the terminal device, where the first information is used to indicate capability information of the terminal device, where the capability information of the terminal device includes whether the terminal device has a first capability of performing positioning based on the first positioning model.

25. The method according to claim 24, characterized in that The first information is further used to indicate one or more of the following: The first capability is direct positioning capability or indirect positioning capability; the conditions for achieving the first capability; and Parameters related to the first capability.

26. The method according to claim 24 or 25, characterized in that The first information is registration request information of the terminal device.

27. The method according to any one of claims 19 to 26, characterized in that The method further comprises: The second network element sends a fifth request to the third network element, where the fifth request is used to request the contract information of the terminal device, and the contract information is used to indicate whether the terminal device is authorized to use the positioning service based on the first positioning model.

28. The method according to claim 27, characterized in that The signing information includes artificial intelligence positioning signing data.

29. The method according to claim 28, characterized in that The artificial intelligence positioning contract data is indicated through a first domain, and the first domain is an artificial intelligence positioning service authorization domain.

30. The method according to any one of claims 27 to 29, wherein: The method further comprises: The second network element receives the subscription information of the terminal device sent by the third network element; When the terminal device has the first capability and the contract information of the terminal device indicates that the terminal device is authorized to use the positioning service based on the first positioning model, the second network element sends authorization information to the terminal device.

31. The method according to claim 30, wherein The method further comprises: The second network element sends the authorization information to the network device corresponding to the terminal device; The authorization information is carried in a next generation application protocol message.

32. The method according to any one of claims 19 to 31, wherein: The first network element is one of a plurality of network elements related to positioning, and the method further includes: The second network element determines the first network element from the multiple network elements according to one or more of the following information: capability information of the terminal device; The contract information of the terminal device; and capability information of the multiple network elements.

33. The method according to claim 32, characterized in that The capability information of the multiple network elements is determined by capability information of some or all of the multiple network elements configured by the second network element.

34. The method according to claim 32 or 33, characterized in that When the first positioning model is the third positioning model, the first network element is determined by preliminary selection or reselection of the second network element from among the multiple network elements.

35. The method according to any one of claims 32 to 34, characterized in that The multiple network elements are determined by the configuration and / or network storage function of the second network element.

36. The method according to any one of claims 19 to 35, wherein: Before the second network element sends the first request to the first network element, the method further includes: The second network element receives a sixth request sent by the second device, where the sixth request is used to request location information of the terminal device; The second device includes the terminal device and / or a third-party device.

37. The method according to claim 36, wherein The method further comprises: The second network element receives the location information of the terminal device sent by the first network element; The second network element sends the location information of the terminal device to the terminal device and / or the third-party device.

38. The method according to any one of claims 19 to 37, wherein: The first positioning model is an artificial intelligence model.

39. The method according to any one of claims 19 to 38, wherein The second network element is an access and mobility management function.

40. A wireless communication method, characterized in that: include: The terminal device sends first information to the second network element, where the first information is used to indicate capability information of the terminal device, where the capability information of the terminal device includes whether the terminal device has a first capability for positioning based on a first positioning model, where the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

41. The method according to claim 40, wherein The first information is further used to indicate one or more of the following: The first capability is direct positioning capability or indirect positioning capability; the conditions for achieving the first capability; and Parameters related to the first capability.

42. The method according to claim 40 or 41, characterized in that The first information is registration request information of the terminal device.

43. The method according to any one of claims 40 to 42, characterized in that When the first positioning model is the second positioning model, the capability information of the terminal device further includes parameters of the second positioning model.

44. The method according to any one of claims 40 to 43, wherein: The method further comprises: The terminal device receives authorization information sent by the second network element, where the authorization information is used to indicate that the terminal device is authorized to use the positioning service based on the first positioning model.

45. The method according to any one of claims 40 to 44, characterized in that The method further comprises: The terminal device sends a sixth request to the second network element, where the sixth request is used to request location information of the terminal device; The terminal device receives the location information of the terminal device sent by the second network element.

46. The method according to any one of claims 40 to 45, characterized in that The first positioning model is an artificial intelligence model.

47. A wireless communication method, characterized in that: include: The third network element receives a fifth request sent by the second network element, where the fifth request is used to request contract information of the terminal device, and the contract information is used to indicate whether the terminal device is authorized to use a positioning service based on a first positioning model, where the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

48. The method according to claim 47, wherein The signing information includes artificial intelligence positioning signing data.

49. The method according to claim 48, characterized in that The artificial intelligence positioning contract data is indicated through a first domain, and the first domain is an artificial intelligence positioning service authorization domain.

50. The method according to any one of claims 47 to 49, wherein The method further comprises: The third network element sends the subscription information of the terminal device to the second network element.

51. The method according to any one of claims 47 to 50, wherein: The first positioning model is an artificial intelligence model.

52. The method according to any one of claims 47 to 51, wherein The third network element is a unified data management entity.

53. A core network element, characterized in that: The core network element is a first network element, and the core network element includes: A determination unit is used to determine a first positioning method for a terminal device, wherein the first positioning method includes a method for positioning the terminal device based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

54. The core network element according to claim 53, characterized in that: The first positioning method is determined based on one or more of the following information: capability information of the terminal device; The contract information of the terminal device; and capability information of the first network element.

55. The core network element according to claim 53 or 54, characterized in that: When the first positioning model is the second positioning model, the first positioning mode is determined according to at least one of capability information of the terminal device and contract information of the terminal device.

56. The core network element according to claim 53 or 54, characterized in that: When the first positioning model is the third positioning model, the first positioning method is determined according to at least one of capability information of the terminal device, subscription information of the terminal device, and capability information of the first network element.

57. The core network element according to any one of claims 53 to 56, characterized in that: The core network element also includes: A first receiving unit is configured to receive a first request sent by a second network element, where the first request is used to request positioning of the terminal device; The first request includes capability information of the terminal device and / or contract information of the terminal device.

58. The core network element according to claim 57, characterized in that: The core network element further includes: The first sending unit is used to send the location information of the terminal device to the second network element.

59. The core network element according to any one of claims 53 to 58, characterized in that: The capability information of the terminal device includes whether the terminal device has a first capability of performing positioning based on the first positioning model.

60. The core network element according to any one of claims 53 to 59, characterized in that: The contract information of the terminal device includes whether the terminal device is authorized to use the positioning service based on the first positioning model.

61. The core network element according to any one of claims 53 to 60, characterized in that: The core network element also includes: The second sending unit is used to send a second request to the model training logic function through the analysis logic function, where the second request is used to request the third positioning model.

62. The core network element according to claim 61, characterized in that: The second request includes a model type of the third positioning model.

63. The core network element according to claim 61 or 62, characterized in that: The first network element is jointly deployed with the analysis logic function.

64. The core network element according to any one of claims 61 to 63, characterized in that: The core network element further includes: The second receiving unit is used to receive a third request sent by the model training logic function through the analysis logic function, where the third request is used to request positioning parameters for training the third positioning model.

65. The core network element according to claim 64, characterized in that: The core network element also includes: The third sending unit is configured to send a fourth request to the first device, where the fourth request is used to collect the positioning parameters.

66. The core network element according to claim 65, characterized in that: When the first device is the terminal device, the fourth request is transmitted through the Long Term Evolution (LTE) positioning protocol; when the first device is the network device corresponding to the terminal device, the fourth request is transmitted through the new air interface positioning protocol a.

67. The core network element according to claim 65 or 66, characterized in that: When the first device is the terminal device, the positioning parameters are transmitted through the LTE positioning protocol; when the first device is the network device corresponding to the terminal device, the positioning parameters are transmitted through the new air interface positioning protocol a.

68. The core network element according to any one of claims 64 to 67, characterized in that: The core network element further includes: a third receiving unit, configured to receive the positioning parameter; A fourth sending unit is used to send the positioning parameters to the model training logic function through the analysis logic function.

69. The core network element according to any one of claims 53 to 68, characterized in that: The first positioning model is an artificial intelligence model.

70. The core network element according to any one of claims 53 to 69, characterized in that: The first network element is a location management function.

71. A core network element, characterized in that: The core network element is a second network element, and the core network element includes: A first sending unit, configured to send a first request to a first network element, where the first request is used to request positioning of a terminal device; Among them, the first request is also used by the first network element to determine a first positioning method for the terminal device, the first positioning method includes a method for positioning the terminal device based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

72. The core network element according to claim 71, characterized in that: The first positioning method is determined based on one or more of the following information: capability information of the terminal device; The contract information of the terminal device; and capability information of the first network element.

73. The core network element according to claim 71 or 72, characterized in that: When the first positioning model is the second positioning model, the first positioning mode is determined according to at least one of capability information of the terminal device and contract information of the terminal device.

74. The core network element according to claim 71 or 72, characterized in that: When the first positioning model is the third positioning model, the first positioning method is determined according to at least one of capability information of the terminal device, subscription information of the terminal device, and capability information of the first network element.

75. The core network element according to any one of claims 71 to 74, characterized in that: The first request includes capability information of the terminal device and / or subscription information of the terminal device.

76. The core network element according to any one of claims 71 to 75, characterized in that: The core network element also includes: The first receiving unit is used to receive first information sent by the terminal device, where the first information is used to indicate capability information of the terminal device, where the capability information of the terminal device includes whether the terminal device has a first capability of performing positioning based on the first positioning model.

77. The core network element according to claim 76, characterized in that: The first information is further used to indicate one or more of the following: The first capability is direct positioning capability or indirect positioning capability; the conditions for achieving the first capability; and Parameters related to the first capability.

78. The core network element according to claim 76 or 77, characterized in that: The first information is registration request information of the terminal device.

79. The core network element according to any one of claims 71 to 78, characterized in that: The core network element also includes: The second sending unit is used to send a fifth request to the third network element, where the fifth request is used to request the contract information of the terminal device, and the contract information is used to indicate whether the terminal device is authorized to use the positioning service based on the first positioning model.

80. The core network element according to claim 79, characterized in that: The signing information includes artificial intelligence positioning signing data.

81. The core network element according to claim 80, characterized in that: The artificial intelligence positioning contract data is indicated through a first domain, and the first domain is an artificial intelligence positioning service authorization domain.

82. The core network element according to any one of claims 79 to 81, characterized in that: The core network element also includes: A second receiving unit, configured to receive the subscription information of the terminal device sent by the third network element; The third sending unit is used to send authorization information to the terminal device when the terminal device has the first capability and the contract information of the terminal device indicates that the terminal device is authorized to use the positioning service based on the first positioning model.

83. The core network element according to claim 82, characterized in that: The core network element also includes: A fourth sending unit, configured to send the authorization information to a network device corresponding to the terminal device; The authorization information is carried in a next generation application protocol message.

84. The core network element according to any one of claims 71 to 83, characterized in that: The first network element is one of multiple network elements related to positioning, and the core network element further includes: a determining unit, configured to determine the first network element from the multiple network elements based on one or more of the following information: capability information of the terminal device; The contract information of the terminal device; and capability information of the multiple network elements.

85. The core network element according to claim 84, characterized in that: The capability information of the multiple network elements is determined by capability information of some or all of the multiple network elements configured by the second network element.

86. The core network element according to claim 84 or 85, characterized in that: When the first positioning model is the third positioning model, the first network element is determined by preliminary selection or reselection of the second network element from among the multiple network elements.

87. The core network element according to any one of claims 84 to 86, characterized in that: The multiple network elements are determined by the configuration and / or network storage function of the second network element.

88. The core network element according to any one of claims 71 to 87, characterized in that: Before the second network element sends the first request to the first network element, the core network network element further includes: a third receiving unit, configured to receive a sixth request sent by the second device, where the sixth request is used to request location information of the terminal device; The second device includes the terminal device and / or a third-party device.

89. The core network element according to claim 88, characterized in that: The core network element further includes: a fourth receiving unit, configured to receive the location information of the terminal device sent by the first network element; The fifth sending unit is used to send the location information of the terminal device to the terminal device and / or the third-party device.

90. The core network element according to any one of claims 71 to 89, characterized in that: The first positioning model is an artificial intelligence model.

91. The core network element according to any one of claims 71 to 90, characterized in that: The second network element is an access and mobility management function.

92. A terminal device, characterized in that: include: A first sending unit is used to send first information to a second network element, where the first information is used to indicate capability information of the terminal device, where the capability information of the terminal device includes whether the terminal device has a first capability for positioning based on a first positioning model, and the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

93. The terminal device according to claim 92, characterized in that The first information is further used to indicate one or more of the following: The first capability is direct positioning capability or indirect positioning capability; the conditions for achieving the first capability; and Parameters related to the first capability.

94. The terminal device according to claim 92 or 93, characterized in that: The first information is registration request information of the terminal device.

95. The terminal device according to any one of claims 92-94, characterized in that: When the first positioning model is the second positioning model, the capability information of the terminal device further includes parameters of the second positioning model.

96. The terminal device according to any one of claims 92-95, characterized in that The terminal device further includes: The first receiving unit is used to receive authorization information sent by the second network element, where the authorization information is used to indicate that the terminal device is authorized to use the positioning service based on the first positioning model.

97. The terminal device according to any one of claims 92-96, characterized in that: The terminal device further includes: A second sending unit, configured to send a sixth request to the second network element, where the sixth request is used to request location information of the terminal device; The second receiving unit is used to receive the location information of the terminal device sent by the second network element.

98. The terminal device according to any one of claims 92-97, characterized in that: The first positioning model is an artificial intelligence model.

99. A core network element, characterized in that: The core network element is a third network element, and the core network element includes: A receiving unit is used to receive a fifth request sent by a second network element, where the fifth request is used to request contract information of a terminal device, where the contract information is used to indicate whether the terminal device is authorized to use a positioning service based on a first positioning model, where the first positioning model includes a second positioning model deployed on the terminal device and / or a third positioning model deployed on the first network element.

100. The core network element according to claim 99, characterized in that: The signing information includes artificial intelligence positioning signing data.

101. The core network element according to claim 100, characterized in that: The artificial intelligence positioning contract data is indicated through a first domain, and the first domain is an artificial intelligence positioning service authorization domain.

102. The core network element according to any one of claims 99 to 101, characterized in that: The core network element further includes: A sending unit is used to send the contract information of the terminal device to the second network element.

103. The core network element according to any one of claims 99 to 102, characterized in that: The first positioning model is an artificial intelligence model.

104. The core network element according to any one of claims 99 to 103, characterized in that: The third network element is a unified data management entity.

105. A core network element, characterized in that: The system comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1 to 18, 19 to 40, or 47 to 52.

106. A terminal device, characterized in that: It comprises a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the method as described in any one of claims 41-46.

107. A chip, characterized in that: The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 1 to 18, 19 to 40, 41 to 46, or 47 to 52.

108. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1-18, 19-40, 41-46, or 47-52.

109. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 18 or 19 to 40 or 41 to 46 or 47 to 52.

110. A computer program, characterized in that The computer program causes a computer to execute the method of any one of claims 1-18 or 19-40 or 41-46 or 47-52.

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