Wireless communication method and communication device

Abstract

The invention provides a wireless communication method and communication equipment. The method comprises the following steps: a first network element sends first information to a second network element, wherein the first information is used for requesting to obtain the position of terminal equipment; and / or, the first network element receives second information sent by the second network element, the second information being used for indicating the position of the terminal device. Wherein the first information and / or the second information comprise one or more of the following information: a positioning mode used for determining the position of the terminal equipment; the accuracy of the position of the terminal device; and obtaining the position of the terminal equipment. The first information and / or the second information carry the positioning related information, such as the positioning mode, the precision, the purpose of obtaining the position and the like, so that a more appropriate positioning mode can be selected, and the positioning result is more accurate.

Description

Technical Field

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

[0002] With the continuous development of artificial intelligence (AI) technology, the introduction of AI models into wireless communication networks has an unstoppable trend. For example, AI models can be applied in the positioning process of terminal devices. However, there is currently no solution for how to apply model-assisted positioning methods in the positioning process of terminal devices. Summary of the invention

[0003] The present application provides a wireless communication method and a communication device. The following introduces various aspects involved in the present application.

[0004] In a first aspect, a wireless communication method is provided, comprising: a first network element sends first information to a second network element, the first information being used to request obtaining a location of a terminal device; and / or the first network element receives second information sent by the second network element, the second information being used to indicate the location of the terminal device. The first information and / or the second information includes one or more of the following: a positioning method for determining the location of the terminal device; the accuracy of the location of the terminal device; and the purpose of obtaining the location of the terminal device.

[0005] In a second aspect, a wireless communication method is provided, including: a second network element receives first information sent by a first network element, the first information being used to request obtaining a location of a terminal device; and / or the second network element sends second information to the first network element, the second information being used to indicate the location of the terminal device. The first information and / or the second information includes one or more of the following: a positioning method for determining the location of the terminal device; the accuracy of the location of the terminal device; and the purpose of obtaining the location of the terminal device.

[0006] In a third aspect, a communication device is provided, the communication device being a first network element, comprising: a transceiver unit, configured to: send first information to a second network element, the first information being used to request obtaining a location of a terminal device; and / or receive second information sent by the second network element, the second information being used to indicate the location of the terminal device. The first information and / or the second information include one or more of the following: a positioning method for determining the location of the terminal device; the accuracy of the location of the terminal device; and the purpose of obtaining the location of the terminal device.

[0007] In a fourth aspect, a communication device is provided, the communication device being a second network element, comprising: a transceiver unit, configured to receive first information sent by a first network element, the first information being used to request obtaining a location of a terminal device; and / or the second network element sending second information to the first network element, the second information being used to indicate the location of the terminal device. The first information and / or the second information includes one or more of the following: a positioning method for determining the location of the terminal device; the accuracy of the location of the terminal device; and the purpose of obtaining the location of the terminal device.

[0008] In a fifth aspect, a communication device is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the communication device executes the method described in the first aspect.

[0009] In a sixth aspect, a communication device is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the communication device executes the method described in the second aspect.

[0010] In a seventh aspect, a device is provided, comprising a processor, configured to call a program from a memory so that the device executes a method as described in any one of the first aspect or the second aspect.

[0011] In an eighth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0012] In a ninth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0013] In a tenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0014] In an eleventh aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect or the second aspect.

[0015] In an embodiment of the present application, the first network element may send first information to the second network element to request the location of the terminal device. Correspondingly, the second network element may send second information to the first network element, and the second information includes the location of the terminal device. Since the first information and / or the second information carries positioning-related information, such as the positioning method, accuracy, purpose of obtaining the location, etc., when the model-assisted positioning method is introduced, it is beneficial to select a more appropriate positioning method to make the positioning result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 4 is a diagram showing an example of a system architecture of a wireless communication system applicable to an embodiment of the present application.

[0017] Figure 2 FIG. 4 is a diagram showing an example of a system architecture of a wireless communication system applicable to another embodiment of the present application.

[0018] Figure 3 A schematic diagram of areas where terminal devices are allowed to access and areas where terminal devices are not allowed to access.

[0019] Figure 4 A schematic diagram of the registration request process for a terminal device.

[0020] Figure 5 A flowchart of a wireless communication method according to an embodiment of the present application is shown.

[0021] Figure 6 This is a flowchart of a wireless communication method according to another embodiment of the present application.

[0022] Figure 7 A schematic diagram of the structure of a communication device according to an embodiment of the present application.

[0023] Figure 8 A schematic diagram of the structure of a communication device according to an embodiment of the present application.

[0024] Fig. 9 A schematic diagram of a device for communication according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0026] Wireless communication system

[0027] Figure 11 is an example diagram of the system architecture of a wireless communication system 100 to which an embodiment of the present application can be applied. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide network coverage for a specific geographical area, and may communicate with the terminal device 120 located in the coverage area. The terminal device 120 may access a network, such as a wireless network, through the network device 110. Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0028] It should be understood that 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), etc. The technical solutions provided in the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0029] In the embodiments of the present application, the 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 device. The terminal device in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, and may be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device may also be a mobile phone, a tablet computer, a laptop, 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 smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the terminal device may be used to act as a base station. For example, the terminal device may act as a dispatching entity that provides sidelink signals between terminal devices in vehicle to everything (V2X) or device to device (D2D). For example, a cellular phone and a car communicate with each other using a sidelink signal. Cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0030] In an embodiment of the present application, a network device may be a device for communicating with a terminal device. In some implementations, the network device may include an access network device or a wireless access network device, for example, the network device may be a base station. A base station may broadly cover various names as follows, or may be replaced with the following names, for example: Node B (NodeB), evolved NodeB (evolved NodeB, eNB), next generation NodeB (next generation NodeB, gNB), relay station, transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), master station (MeNB), secondary station (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (access point, AP), transmission node, transceiver node, baseband unit (base band unit, BBU), remote radio unit (remote radio unit, RRU), active antenna unit (active antenna unit, AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc. The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station may also refer to a communication module, a modem or a chip used to be arranged in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device to device D2D, vehicle-to-everything (V2X), a device that performs the base station function in machine-to-machine (M2M) communications, a network-side device in a 6G network, and a device that performs the base station function in future communication systems. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the network equipment. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the network equipment.

[0031] In some other implementations, the network device may include a core network device (or core network element). In the NR system, the core network element may also be referred to as a network function (NF). The types of core network elements may include, for example, UPF elements, access and mobility management functions (AMF) elements, session management functions (SMF) elements, policy control functions (PCF) elements, application functions (AF), data networks (DN), network slice selection functions (NSSF), authentication server functions (AUSF), unified data management functions (UDM), network exposure functions (NEF), network repository functions (NRF), and network slice-specific authentication and authorization functions (NSSAAF).

[0032] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.

[0033] As an example and not limitation, in addition, the network device may be fixed or mobile. For example, a helicopter or a drone may be configured to act as a mobile base station, and one or more cells may move according to the location of the mobile base station. In other examples, a helicopter or a drone may be configured to be used as a device for communicating with another base station. In some implementations, the network device may be a satellite or a balloon station. For example, a satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, and the like. In some embodiments, the network device may also be a base station set up in a location such as land or water.

[0034] It should be understood that all or part of the functions of the communication device in the present application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform such as a cloud platform.

[0035] Positioning Technology in Communication Systems

[0036] As an example, Figure 2 As shown, the communication system 100 may also include a positioning device 130. The positioning device 130 may be used to determine the location information of the terminal device. The positioning device 130 may be located in the core network. The positioning device 130 may also be referred to as a positioning server. Taking the NR system as an example, the positioning device 130 may be a location management function (LMF). Taking other communication systems as examples, the positioning device 130 may be a location management unit (LMU), a location management center (LMC) or an evolved serving mobile location center (E-SMLC). It can be understood that the positioning device 130 may also be other network elements, nodes or devices for determining the location information of the terminal device, such as a network element or node for determining the location information of the terminal device in a future communication system. The embodiment of the present application does not specifically limit the name of the positioning device.

[0037] Positioning in the communication system 100 includes uplink positioning and downlink positioning. In some communication systems (for example, NR systems), downlink positioning can be performed based on a positioning reference signal (PRS). The positioning reference signal may also be referred to as a downlink positioning reference signal (DL-PRS), which is used to implement the positioning function. For example, in the process of downlink positioning, the terminal device 120 may first measure the PRS sent by the serving cell and the adjacent neighboring cell (or neighboring cell), and estimate the relevant information of the positioning measurement. Then, the terminal device 120 may report the relevant information of the positioning measurement as the measurement result of the PRS to the positioning device 130. The positioning device 130 may solve the position of the terminal device 120 based on the positioning measurement related information reported by the terminal device 120, thereby obtaining the position information of the terminal device 120.

[0038] In some communication systems (e.g., NR systems), uplink positioning can be performed based on a sounding reference signal (SRS). For example, during uplink positioning, the terminal device 120 sends an SRS. The network device 110 (e.g., a base station in a serving cell and a base station in a neighboring cell) can obtain measurement results based on the SRS sent by the terminal device. The measurement results of the SRS may include relevant information of the positioning measurement. Then, the network device 110 may send the relevant information of the positioning measurement to the positioning device 130. The positioning device 130 may solve the position of the terminal device 120 based on the relevant information of the positioning measurement reported by the network device 110, thereby obtaining the position information of the terminal device 120.

[0039] Model-assisted positioning

[0040] The 3rd Generation Partnership Project (3GPP) has identified the introduction of artificial intelligence (AI) / machine learning (ML) models (or AL / ML algorithms, AL / ML functions) in multiple technical directions, such as applying AI / ML models to the positioning of terminal devices, namely model-assisted positioning (or AI-assisted positioning).

[0041] In a wireless network, the wireless signal transmission between network devices and terminal devices cannot accurately achieve the goal of "preventing wireless signals from covering a specific area", but there is such a demand in practical applications. For example, in a confidential factory, in order to prevent leakage, certain terminal devices (for example, terminal devices of a certain operator) are not allowed to access the network, or all terminal devices are not allowed to access the network. For another example, Figure 3 As shown in the figure, in a non-terrestrial network (NTN), the coverage area of ​​a cell is usually large, even across national borders. The terminal equipment of the operator in country A can only access the core network of country A within country A, and cannot access it within country B (for example, it cannot access the core network of country A, nor the core network of country B). The access network cannot identify the terminal device, so the core network needs to determine the specific geographical location of the terminal device, and then determine whether the terminal device can access the wireless network. To this end, taking the NR network as an example, you can use, for example Figure 4 The process shown in the figure determines whether the terminal device is allowed to access the current area. Figure 4 The process shown is performed by a terminal device, an access network device, a first network element, and a second network element. The first network element may be a core network control node, for example, in an NR network, the core network control node may be an AMF; the second network element may be a positioning device, such as an LMF; and the access network device may be, for example, a base station.

[0042] In step 401, a radio resource control (RRC) connection is established between a terminal device and a base station.

[0043] In step 402, after an RRC connection is established between the terminal device and the base station, the terminal device initiates a registration request to the AMF.

[0044] In step 403, after receiving the terminal device registration request, the AMF determines that the cell where the terminal device is located may have some geographical locations that prohibit the terminal device from accessing. The cell may be, for example, Figure 2 The cell shown or other types of cells.

[0045] In step 404, the AMF requests the LMF to provide the geographic location of the terminal device, and may carry the cell identifier and / or the terminal device identifier at the same time.

[0046] Next, the positioning process is entered, including steps 405 to 409.

[0047] In step 405, the LMF sends a positioning capability request to the terminal device.

[0048] In step 406, the terminal device reports its positioning capability.

[0049] In step 407, the LMF sends the positioning method, positioning parameter configuration, etc. to the terminal device based on the positioning capability reported by the terminal device.

[0050] In step 408, the terminal device is positioned based on the model-assisted positioning method to determine the location of the terminal device.

[0051] In step 409, the terminal device sends the location of the terminal device to the LMF.

[0052] Among them, model-assisted positioning can also include the following types, for example, it can include positioning based on terminal equipment, wherein the network equipment (for example, base station) sends a reference signal, the terminal equipment measures the reference signal and calculates the position of the terminal equipment based on the measurement result, and reports the position to LMF; for example, it includes network-based positioning, wherein the network equipment configures the terminal equipment to send relevant reference signals, and the network equipment measures the reference signals sent by the terminal equipment, calculates the position of the terminal equipment according to the measurement results, and reports the position of the terminal equipment to LMF.

[0053] Figure 4 The positioning based on the terminal device is taken as an example, wherein in step 408 and step 409, the terminal device determines its position based on the model-assisted positioning method and sends its position to the LMF. By introducing the model and using the model to assist the terminal device in calculating its own position, the position of the terminal device can be obtained quickly.

[0054] In step 410, LMF sends the location of the terminal device to AMF.

[0055] In step 411, the AMF determines whether the terminal device can access the network (for example, whether it can access the current public land mobile network (PLMN)) at the current geographical location based on the location of the terminal device.

[0056] If it is determined that the terminal device can access the network (or, can register in the current network), execute step 412; if it is determined that the terminal device cannot access the network (or, cannot register in the current network), execute step 413.

[0057] In step 412, the AMF sends a registration success response message to the terminal device.

[0058] In step 413, the AMF sends a registration rejection message to the terminal device, which may include a rejection reason, such as location area not allowed.

[0059] Figure 4 As an example, it is assumed that the location information of the terminal device obtained by AMF is accurate enough and AMF can make an accurate judgment. If the location information obtained by AMF is not accurate enough, AMF can optionally allow the terminal device to access first, and then in the subsequent mobility management process or service management process, trigger LMF to measure the location of the terminal device again, so as to perform the judgment of whether the terminal device can access again. If it is determined that the geographical location of the terminal device is not accessible, the mobility request or service request issued by the terminal device is rejected (for example, through a non-access stratum (NAS) message), which may include the rejection reason such as location not allowed.

[0060] However, after the introduction of the model-assisted positioning function, the accuracy of the location information of the terminal device obtained by AMF may not be sufficient, and thus it is impossible to make an appropriate judgment. If the location determined based on the model-assisted positioning method is inaccurate, there are two situations. In one case, the actual geographic location of the terminal device should allow access, but due to inaccurate model-assisted positioning results, AMF determines that the terminal device cannot access. At this time, if the terminal device initiates access again, it will still be rejected using model-assisted positioning. In another case, the actual geographic location of the terminal device should deny access, but due to inaccurate model-assisted positioning results, AMF determines that access is allowed. This situation does not meet the operator's expectations.

[0061] To this end, an embodiment of the present application provides a method for wireless communication, wherein a first network element can send first information to a second network element to request the location of a terminal device, and accordingly, the second network element can send second information to the first network element, where the second information includes the location of the terminal device. Since the first information and / or the second information carries positioning-related information, such as positioning method, accuracy, purpose of obtaining the location, etc., when a model-assisted positioning method is introduced, it is beneficial to select a more appropriate positioning method to make the positioning result more accurate.

[0062] Combine the following Figure 5 , the embodiments of the present application are introduced in detail.

[0063] Figure 5 A flowchart of a wireless communication method provided in an embodiment of the present application. Figure 5 The method 500 shown is performed by at least a first network element and a second network element. The first network element and the second network element may be network elements in a core network, wherein the first network element may be a core network control node (for example, in an NR network, the core network control node may be an AMF); the second network element may be a positioning device, such as an LMF. Figure 5 As shown, method 500 may include step 510 and / or step 520 .

[0064] In step 510, the first network element sends first information to the second network element; correspondingly, the second network element receives the first information sent by the first network element. The first information is used to request the location of the terminal device.

[0065] In step 520, the second network element sends second information to the first network element; correspondingly, the first network element receives the second information sent by the second network element, wherein the second information is used to indicate the location of the terminal device.

[0066] In some implementations, the first information includes one or more of the following information: a positioning method for determining the location of the terminal device; the accuracy of the location of the terminal device; the purpose of obtaining the location of the terminal device. The positioning method may include, for example, one or more of the following: a model-assisted positioning method; other positioning methods other than the model-assisted positioning method; a combination of the model-assisted positioning method and other positioning methods. The purpose of obtaining the location of the terminal device is associated with, for example, one or more of the following: a registration request of the terminal device; a location update of the terminal device; and service management of the terminal device.

[0067] As an example, if the first information includes the desired positioning method, the second network element may indicate the positioning method to the terminal device after receiving the first information, so that the terminal device can be positioned based on the positioning method, thereby obtaining the position of the terminal device. The positioning method carried in the first information may be model-assisted positioning, or other positioning methods other than model-assisted positioning (i.e., not using the model-assisted positioning method), or a combination of model-assisted positioning and other positioning methods. That is, when the first network element requests the second network element to obtain the position of the terminal device, it may also indicate the recommended positioning method to the second network element at the same time. The positioning method may be determined based on the accuracy requirement of the first network element, for example, the accuracy requirement may be agreed upon by the protocol, for example, the positioning accuracy used by the first network element to determine whether the terminal device can access the network is agreed upon by the protocol. The first network may notify the second network element which positioning method is recommended to be used, or notify the second network element which positioning method is not used (e.g., not using the model-assisted positioning method), or notify the second network element to use a combination of model-assisted positioning and other positioning methods to improve the positioning accuracy. In this way, when the second network element configures the positioning method for the terminal device, it can configure the positioning method recommended in the first information. It should be noted that the positioning process involved in the embodiments of the present application is based on the positioning of the terminal device as an example, but is not limited to this. After determining the positioning method, positioning based on the network device can also be used to obtain the location of the terminal device.

[0068] In the embodiments of the present application, other positioning methods mentioned include but are not limited to observed time difference of arrival (OTDOA), angle of departure (AoD), angle of arrival (AoA), multi-round-trip time (multi-RTT), various positioning methods involved in the LPP protocol, and other uplink positioning or downlink positioning methods. The model-assisted positioning method and other positioning methods may be mutually exclusive. For example, when the accuracy of the model-assisted positioning method is insufficient, only other model positioning methods can be used; the model-assisted positioning method and other positioning methods may also be used simultaneously. For example, when the accuracy of the model-assisted positioning method is insufficient, in addition to using other positioning methods, a combination of the model-assisted positioning method and other positioning methods may also be used.

[0069] For another example, if the first information includes the desired location accuracy, after receiving the first information, the second network element can select a suitable positioning method according to the location accuracy carried in the first information, and configure a suitable positioning method for the terminal device. For example, when the accuracy of the model-assisted positioning method can meet the location accuracy indicated in the first information, the model-assisted positioning method is selected; when the accuracy of the model-assisted positioning method cannot meet the location accuracy indicated in the first information, other positioning methods other than the model-assisted positioning method are selected, or a combination of the model-assisted positioning method and other positioning methods is selected.

[0070] For another example, if the first information includes the purpose of requesting to obtain the location of the terminal device. The following is an example of associating the purpose of obtaining the terminal device with the registration request of the terminal device (that is, the purpose of obtaining the terminal device is to determine whether the terminal device can access the network). For other related NAS processes, as long as the location restriction service of the terminal device is involved, a similar method can be used for positioning. For example, the location of the terminal device is updated after it moves, thereby triggering the first network element to determine whether the location of the terminal device can continue to transmit service data; for another example, in the service management process, the first network element also needs to obtain the location of the terminal device when it has different restrictions on the location of the terminal device for specific services. If the terminal device has been successfully registered in the core network, but the first network element finds that the location of the terminal device does not support the transmission of the current service, the terminal device is changed to a deregistered state through a deregistration message.

[0071] In some implementations, the second information includes, for example, a positioning method for determining the location of the terminal device, and / or the accuracy of the location of the terminal device. The positioning method may include, for example, a model-assisted positioning method, other positioning methods other than the model-assisted positioning method, or a combination of the model-assisted positioning method and other positioning methods. That is, when the second network element provides the location information of the terminal device to the first network element, it also provides the positioning method used to obtain the location information, or provides the accuracy information of the location, or provides the positioning method used to obtain the location information and the accuracy information of the location. For example, if the location of the terminal device is obtained based on the model-assisted positioning method, the second information may include "the positioning method is model-assisted positioning", or include "the positioning method is model-assisted positioning" and "the accuracy of model-assisted positioning", or include "the accuracy of model-assisted positioning". Alternatively, when the second network element provides the location information of the terminal device to the first network element, no matter which positioning method is used, the corresponding accuracy information can be provided to the first network element. In this way, the first network element can determine whether the location of the terminal device carried in the second information can be used (for example, whether the location can be used to determine whether the terminal device can access the network) based on the positioning method and / or accuracy information carried in the second information.

[0072] It should be noted that, in the embodiment of the present application, the first information sent by the first network element to the second network element may carry information such as the recommended positioning method, accuracy requirement, and purpose of obtaining the position. At this time, after receiving the first information, the second network element may select an appropriate positioning method to obtain the position information that meets the requirements. Figure 4 For example, it is equivalent to Figure 4 ; or, the second information sent by the second network element to the first network element may carry the location information, as well as the positioning method and accuracy used to obtain the location. In this case, after receiving the second information, the first network element may determine whether the location meets the corresponding requirements (for example, whether the location can be used to determine whether the terminal device can access the network), thereby avoiding erroneous results based on erroneous locations. Figure 4 For example, it is equivalent to Figure 4 Step 410 shown in FIG.

[0073] In the embodiment of the present application, the information such as the positioning mode, accuracy, and purpose may be carried only in the first information, or the information such as the positioning mode, accuracy, and purpose may be carried only in the second information, that is, only one of step 404 and step 410 is improved. However, in some cases, the above information may be carried in both the first information and the second information, that is, both step 404 and step 410 are improved. For example, the first network element notifies the second network element through the first information to use the model-assisted positioning mode, but the current model-assisted positioning mode is not suitable for continued use due to some reasons (for example, the model accuracy is decreasing, etc.), so other positioning modes are used. At this time, in addition to carrying the location information of the terminal device, the second information sent by the second network element to the first network element may also indicate that the location of the terminal device is determined based on other positioning modes and / or the accuracy of the location.

[0074] like Figure 6 As shown, an embodiment of the present application also provides a method for wireless communication. Figure 6 The method 600 shown is performed by at least the first network element and the terminal device. Figure 6 As shown, method 600 may include step 610 and step 620 .

[0075] In step 610, the terminal device sends a first request message to the first network element; correspondingly, the first network element receives the first request message sent by the terminal device.

[0076] In step 620, the first network element sends a response message to the first request message to the terminal device.

[0077] For example, the first network element may send the response message to the terminal device based on the location of the terminal device (for example, the location of the terminal device obtained by requesting from the second network element). The response message is used to indicate whether the request of the terminal device is allowed or rejected. As an example, the first request message may be a registration request message, which is used to request registration to a network (for example, the network corresponding to the first network element). Accordingly, the response message to the first request message may be a registration success response message or a registration rejection response message. Furthermore, the response message is also used to indicate the positioning method associated with the decision to allow or reject the request of the terminal device. For example, the response message is used to indicate that the positioning method is a model-assisted positioning method, which may indicate that when the response message indicates that the request of the terminal device is allowed, it is because the location of the terminal device is allowed, or when the response message indicates that the request of the terminal device is rejected, it is because the location of the terminal device is not allowed, and these locations are obtained based on the model-assisted positioning method. Taking the registration response message as an example, the registration success response message may indicate that "the result of successful registration is obtained based on the model-assisted positioning method", and the registration rejection response message may indicate that "the result of rejection of registration is obtained based on the model-assisted positioning method". Figure 4 For example, it is equivalent to Figure 4 Step 412 and / or step 413 shown in FIG. 4 are improved.

[0078] In this case, if the terminal device disagrees with the result, it can initiate the corresponding NAS process (e.g., registration request process) again. For example, the terminal device can send a second request message to the first network element; accordingly, the first network element receives the second request message sent by the terminal device. The second request message is used to request registration to the network, and, optionally, the second request message is also used to indicate that the model-assisted positioning method is not used. Specifically, when the first network element sends a registration success response message to the terminal device, it can notify the terminal device that "the terminal device is currently allowed to access the network, which is the result of positioning based on the model-assisted positioning method". If the terminal device believes that its location should not access the network, it will send a registration request message again and notify the first network element that "the accuracy of the model-assisted positioning method is low" or "do not use the model-assisted positioning method", thereby triggering the positioning process again to determine whether the terminal device can really access the network. When the first network element sends a registration rejection response message to the terminal device, it can notify the terminal device that "the terminal device is currently denied access to the network, which is the result of positioning based on the model-assisted positioning method". If the terminal device believes that its location should be able to access the network, it will send a registration request message again and notify the first network element that "the accuracy of the model-assisted positioning method is low" or "do not use the model-assisted positioning method", thereby triggering the positioning process again to determine whether the terminal device can actually access the network. The embodiment of the present application does not limit how the terminal device determines whether it should accept the above-mentioned permission or rejection result. For example, after the terminal device reports its location to the second network element, it triggers the process of the terminal device positioning by other positioning methods through other processes, and the locations sent based on the model-assisted positioning method and the other positioning methods are quite different (for example, the distance between the locations obtained by the two methods exceeds the threshold). At this time, if the terminal device receives a registration success response message or a registration rejection response message, it realizes that the previously reported location may be inaccurate, so it will initiate the registration request process again and inform that the result of the model-assisted positioning may be inaccurate.

[0079] It should be noted that method 500 and method 600 can be implemented separately, that is, information such as the positioning mode and / or accuracy is carried in the first information and / or the second information, or information such as the positioning mode and / or accuracy is carried in the response message; or, method 500 and method 600 can also be implemented at the same time, for example, the first information and / or the second information may carry information such as the positioning mode and / or accuracy, and the response message may also carry information such as the positioning mode and / or accuracy.

[0080] The above describes a case where the first network element can determine whether the terminal device can access the network based on the second information. In other implementations, when it is impossible to determine whether the location of the terminal device in the second information can be used (for example, it is impossible to determine whether the terminal device can access the network based on the location of the terminal device), the first network element can send third information to the second network element, and the third information is used to request the location of the terminal device, and, optionally, the third information can include information on the positioning method and / or accuracy. In other words, the first network element can determine whether the terminal device can access the network based on the location of the terminal device. If it is impossible to determine whether the terminal device can access the network due to reasons such as the positioning method and / or accuracy not meeting the requirements, the second network element can be requested to provide the location of the terminal device again, and the specific positioning method (for example, instructing the second network element not to use the model-assisted positioning method) and / or accuracy requirements of the second network element can be indicated, until the first network element obtains location information with sufficient accuracy from the second network element.

[0081] In some implementations, the second network element may send fourth information to the terminal device, and accordingly, the terminal device receives the fourth information sent by the second network element. The fourth information includes a positioning method for determining the position of the terminal device. That is, the second network element may indicate the positioning method used by the terminal device for positioning through the fourth information. Optionally, when the accuracy of the model-assisted positioning method is higher than the accuracy included in the first information, the positioning method included in the fourth information is the model-assisted positioning method, that is, the method used to notify the terminal device for positioning is the model-assisted positioning method; when the accuracy of the model-assisted positioning method is lower than the accuracy included in the first information, the positioning method included in the fourth information is other positioning methods other than the model-assisted positioning method, or a combination of the model-assisted positioning method and other positioning methods, that is, the method used to notify the terminal device for positioning is other positioning methods other than the model-assisted positioning method, or a combination of the model-assisted positioning method and other positioning methods.

[0082] Through the above-mentioned method, when the model-assisted positioning method is introduced, it is possible to fully utilize the model-assisted positioning method to improve the positioning cell and / or accuracy, and to reduce the occurrence of accessing the network at an incorrect geographical location or being denied access by the first network element at an accessible geographical location due to the lower accuracy of the positioning information obtained by the model-assisted positioning method.

[0083] Combination of the above Figures 1 to 6 , describes the method embodiment of the present application in detail, and the following is combined with Figures 7 to 9 , describes the device embodiment of the present application in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0084] Figure 7 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. Figure 7 The communication device 700 shown is, for example, a first network element, and includes a transceiver unit 710. The transceiver unit 710 is used to: send first information to a second network element, the first information being used to request the location of a terminal device; and / or receive second information sent by the second network element, the second information being used to indicate the location of the terminal device. The first information and / or the second information include one or more of the following: a positioning method for determining the location of the terminal device; the accuracy of the location of the terminal device; and the purpose of obtaining the location of the terminal device.

[0085] In some implementations, the purpose is associated with one or more of the following: a registration request of the terminal device; a location update of the terminal device; and service management of the terminal device.

[0086] In some implementations, the positioning method includes one or more of the following: a model-assisted positioning method; other positioning methods except the model-assisted positioning method; a combination of the model-assisted positioning method and the other positioning methods.

[0087] In some implementations, the transceiver unit 710 is also used to: receive a first request message sent by the terminal device, the first request message is used to request registration to the network; based on the location of the terminal device, send a response message to the first request message to the terminal device, wherein the response message is used to indicate whether to allow or reject the request of the terminal device, and the response message is also used to indicate that the positioning method is a model-assisted positioning method.

[0088] In some implementations, the transceiver unit 710 is further used to: receive a second request message sent by the terminal device, the second request message is used to request registration to the network, and the second request message is also used to indicate not to use the model-assisted positioning method.

[0089] In some implementations, the transceiver unit 710 is also used to: when it is impossible to determine whether the location of the terminal device in the second information can be used, send third information to the second network element, wherein the third information is used to request the location of the terminal device, and the third information includes the positioning method and / or the accuracy.

[0090] In some implementations, the first network element is an AMF; and / or, the second network element is an LMF.

[0091] It can be understood that the transceiver unit 710 can be, for example, a transceiver 930. In addition, optionally, the communication device 700 further includes a processor 910 and a memory 920, for details, see Fig. 9 .

[0092] Figure 8 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. Figure 8 The communication device 800 shown is, for example, a second network element, and includes a transceiver unit 810. The transceiver unit 810 is used to: receive first information sent by a first network element, the first information is used to request the location of a terminal device; and / or send second information to the first network element, the second information is used to indicate the location of the terminal device. The first information and / or the second information include: a positioning method for determining the location of the terminal device; the accuracy of the location of the terminal device; and the purpose of obtaining the location of the terminal device.

[0093] In some implementations, the purpose is associated with one or more of the following: a registration request of the terminal device; a location update of the terminal device; and service management of the terminal device.

[0094] In some implementations, the positioning method includes one or more of the following: a model-assisted positioning method; other positioning methods except the model-assisted positioning method; a combination of the model-assisted positioning method and the other positioning methods.

[0095] In some implementations, the transceiver unit 810 is further used to: send fourth information to the terminal device, where the fourth information includes the positioning method for determining the position of the terminal device.

[0096] In some implementations, when the accuracy of the model-assisted positioning method is higher than the accuracy included in the first information, the positioning method included in the fourth information is the model-assisted positioning method; when the accuracy of the model-assisted positioning method is lower than the accuracy included in the first information, the positioning method included in the fourth information is other positioning methods other than the model-assisted positioning method, or a combination of the model-assisted positioning method and other positioning methods.

[0097] In some implementations, the first network element is an AMF; and / or, the second network element is an LMF.

[0098] It can be understood that the transceiver unit 810 can be, for example, a transceiver 930. In addition, optionally, the communication device 800 further includes a processor 910 and a memory 920, for details, see Fig. 9 .

[0099] Fig. 9It is a schematic structural diagram of a device for communication according to an embodiment of the present application. Fig. 9 The dotted line shown in indicates that the unit or module is optional. The apparatus 900 may be used to implement the method described in the above method embodiment. The apparatus 900 may be, for example, a chip or a communication device.

[0100] The device 900 may include one or more processors 910. The processor 910 may support the device 900 to implement the method described in the aforementioned method embodiment. The processor 910 may be a general-purpose processor or a special-purpose processor. For example, the processor 910 may be a central processing unit (CPU). Alternatively, the processor 910 may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or may be any conventional processor, etc.

[0101] The apparatus 900 may further include one or more memories 920. The memory 920 stores a program, which can be executed by the processor 910, so that the processor 910 executes the method described in the above method embodiment. The memory 920 may be independent of the processor 910, or may be integrated in the processor 910.

[0102] The apparatus 900 may further include a transceiver 930. The processor 910 may communicate with other devices or chips through the transceiver 930. For example, the processor 910 may transmit and receive data with other devices or chips through the transceiver 930.

[0103] The embodiment of the present application also provides a communication system. The communication system includes the above-mentioned communication device. In some implementations, the system also includes other devices that interact with the communication device.

[0104] The embodiment of the present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the communication device provided in the embodiment of the present application, and the program enables a computer to execute the method executed by the communication device in each embodiment of the present application.

[0105] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the communication device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the communication device in each embodiment of the present application.

[0106] The embodiment of the present application also provides a computer program. The computer program can be applied to the communication device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the communication device in each embodiment of the present application.

[0107] It should be understood that the terms "system" and "network" in the embodiments of the present application can be used interchangeably. In addition, the terms used in the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of the present 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 of their variations are intended to cover non-exclusive inclusions.

[0108] In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0109] In the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0110] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0111] In the embodiments of the present application, "pre-definition", "pre-configuration" or "pre-agreement" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0112] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication 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.

[0113] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. 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 article generally indicates that the associated objects before and after are in an "or" relationship.

[0114] 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.

[0115] In the several embodiments provided in the present 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 only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, 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.

[0116] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0117] 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.

[0118] 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 may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may 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 may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may 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. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0119] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: include: The first network element sends first information to the second network element, where the first information is used to request to obtain the location of the terminal device; and / or, The first network element receives second information sent by the second network element, where the second information is used to indicate the location of the terminal device; The first information and / or the second information includes one or more of the following: A positioning method for determining the position of the terminal device; the accuracy of the location of the terminal device; The purpose of obtaining the location of the terminal device.

2. The method according to claim 1, characterized in that The purpose is related to one or more of the following: A registration request of the terminal device; Update of location of the terminal device; Service management of the terminal device.

3. The method according to claim 1 or 2, characterized in that: The positioning method includes one or more of the following: Model-assisted positioning method; Other positioning methods besides model-assisted positioning methods; A combination of the model-assisted positioning method and the other positioning methods.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: The first network element receives a first request message sent by the terminal device, where the first request message is used to request registration with the network; The first network element sends a response message to the first request message to the terminal device based on the location of the terminal device, wherein the response message is used to indicate whether to allow or reject the request of the terminal device, and the response message is also used to indicate that the positioning method is a model-assisted positioning method.

5. The method according to claim 4, characterized in that The method further comprises: The first network element receives a second request message sent by the terminal device, where the second request message is used to request registration with the network, and the second request message is also used to indicate not to use the model-assisted positioning method.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: When it is impossible to determine whether the location of the terminal device in the second information can be used, the first network element sends third information to the second network element, where the third information is used to request the location of the terminal device, and the third information includes the positioning method and / or the accuracy.

7. The method according to any one of claims 1 to 6, characterized in that The first network element is an access and mobility management function AMF; and / or, The second network element is a location management function LMF.

8. A wireless communication method, characterized in that: include: The second network element receives first information sent by the first network element, where the first information is used to request to obtain the location of the terminal device; and / or, The second network element sends second information to the first network element, where the second information is used to indicate the location of the terminal device; The first information and / or the second information includes: A positioning method for determining the position of the terminal device; the accuracy of the location of the terminal device; The purpose of obtaining the location of the terminal device.

9. The method according to claim 8, characterized in that The purpose is related to one or more of the following: A registration request of the terminal device; Update of location of the terminal device; Service management of the terminal device.

10. The method according to claim 8 or 9, characterized in that: The positioning method includes one or more of the following: Model-assisted positioning method; Other positioning methods besides model-assisted positioning methods; A combination of the model-assisted positioning method and the other positioning methods.

11. The method according to any one of claims 8 to 10, characterized in that The method further comprises: The second network element sends fourth information to the terminal device, and the fourth information includes the positioning method for determining the position of the terminal device.

12. The method according to claim 11, characterized in that In a case where the accuracy of the model-assisted positioning method is higher than the accuracy included in the first information, the positioning method included in the fourth information is the model-assisted positioning method; When the accuracy of the model-assisted positioning method is lower than the accuracy included in the first information, the positioning method included in the fourth information is another positioning method other than the model-assisted positioning method, or is a combination of the model-assisted positioning method and other positioning methods.

13. The method according to any one of claims 8 to 12, characterized in that The first network element is an access and mobility management function AMF; and / or, The second network element is a location management function LMF.

14. A communication device, characterized in that: The communication device is a first network element, including: A transceiver unit, configured to: send first information to a second network element, wherein the first information is used to request the location of a terminal device; and / or receive second information sent by the second network element, wherein the second information is used to indicate the location of the terminal device; The first information and / or the second information includes one or more of the following: A positioning method for determining the position of the terminal device; the accuracy of the location of the terminal device; The purpose of obtaining the location of the terminal device.

15. The communication device according to claim 14, characterized in that The purpose is related to one or more of the following: A registration request for the terminal device; Update of location of the terminal device; Service management of the terminal device.

16. The communication device according to claim 14 or 15, characterized in that: The positioning method includes one or more of the following: Model-assisted positioning method; Other positioning methods besides model-assisted positioning methods; A combination of the model-assisted positioning method and the other positioning methods.

17. The communication device according to any one of claims 14 to 16, characterized in that: The transceiver unit is also used for: Receiving a first request message sent by the terminal device, where the first request message is used to request registration with a network; Based on the location of the terminal device, a response message for the first request message is sent to the terminal device, wherein the response message is used to indicate whether the request of the terminal device is allowed or rejected, and the response message is also used to indicate that the positioning method is a model-assisted positioning method.

18. The communication device according to claim 17, characterized in that The transceiver unit is also used for: Receive a second request message sent by the terminal device, where the second request message is used to request registration to the network, and the second request message is also used to indicate not to use the model-assisted positioning method.

19. The communication device according to any one of claims 14 to 18, characterized in that: The transceiver unit is also used for: When it is impossible to determine whether the location of the terminal device in the second information can be used, third information is sent to the second network element, where the third information is used to request the location of the terminal device, and the third information includes the positioning method and / or the accuracy.

20. The communication device according to any one of claims 14 to 19, characterized in that: The first network element is an access and mobility management function AMF; and / or, The second network element is a location management function LMF.

21. A communication device, characterized in that: The communication device is a second network element, including: A transceiver unit, configured to: receive first information sent by a first network element, the first information being used to request obtaining a location of a terminal device; and / or send second information to the first network element, the second information being used to indicate a location of the terminal device; The first information and / or the second information includes: A positioning method for determining the position of the terminal device; the accuracy of the location of the terminal device; The purpose of obtaining the location of the terminal device.

22. The communication device according to claim 21, characterized in that The purpose is related to one or more of the following: A registration request of the terminal device; Update of location of the terminal device; Service management of the terminal device.

23. The communication device according to claim 21 or 22, characterized in that: The positioning method includes one or more of the following: Model-assisted positioning method; Other positioning methods besides model-assisted positioning methods; A combination of the model-assisted positioning method and the other positioning methods.

24. The communication device according to any one of claims 21 to 23, characterized in that: The transceiver unit is also used for: Send fourth information to the terminal device, where the fourth information includes the positioning method used to determine the position of the terminal device.

25. The communication device according to claim 24, characterized in that In a case where the accuracy of the model-assisted positioning method is higher than the accuracy included in the first information, the positioning method included in the fourth information is the model-assisted positioning method; When the accuracy of the model-assisted positioning method is lower than the accuracy included in the first information, the positioning method included in the fourth information is another positioning method other than the model-assisted positioning method, or is a combination of the model-assisted positioning method and other positioning methods.

26. The communication device according to any one of claims 21 to 25, characterized in that: The first network element is an access and mobility management function AMF; and / or, The second network element is a location management function LMF.

27. A communication device, characterized in that: The communication device comprises a transceiver, 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 and control the transceiver to receive or send a signal, so that the communication device executes the method according to any one of claims 1 to 7.

28. A communication device, characterized in that: The communication device comprises a transceiver, 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 and control the transceiver to receive or send a signal, so that the communication device executes the method according to any one of claims 8 to 13.

29. A device, characterized in that: The device comprises a processor, configured to call a program from a memory so as to enable the device to execute the method according to any one of claims 1 to 13.

30. 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 13.

31. 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 to 13.

32. A computer program product, characterized in that A program is included, which causes a computer to execute the method according to any one of claims 1 to 13.

33. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 13.

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