Terminal positioning capability reporting method and device

Abstract

The present application discloses a terminal positioning capability reporting method and device, which relates to the field of wireless communication technology. The method includes: the access and mobility management function AMF entity obtains and saves the terminal positioning capability of the terminal. After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is saved in the AMF entity, the AMF entity transmits the terminal positioning capability of the target terminal to the positioning management function LMF entity, so that the LMF sets the positioning method for the target terminal according to the terminal positioning capability. In the above process, when the LMF entity needs to obtain the terminal positioning capability of the target terminal, it can be obtained directly from the AMF entity, and there is no need to obtain the terminal positioning capability through interaction with the terminal. Therefore, the positioning delay introduced by the LMF in obtaining the terminal positioning capability during the positioning service processing can be significantly reduced.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method and device for reporting terminal positioning capability. Background Art

[0002] Positioning technology is a service technology that obtains the location information of the terminal through wireless communication networks or other positioning systems, and then provides the terminal with various information related to the location in combination with the geographic information system. For example, outdoor positioning technology based on the Global Navigation Satellite System (GNSS) has been widely used in various fields. With the development of wireless communication, high-precision positioning technology based on the fourth generation (4G) mobile communication network has effectively filled the gap in satellite navigation system positioning.

[0003] At present, the mobile communication network has entered the era of the fifth generation (5G) mobile communication technology. Compared with the 4G positioning network architecture, the 5G positioning network architecture has higher precision and lower latency positioning requirements.

[0004] However, in the existing positioning service processing, the Location Management Function (LMF) entity needs to first obtain the terminal positioning capability related to positioning from the terminal, and then allocate a suitable positioning method to the terminal and perform measurement configuration based on the terminal positioning capability. The process of the LMF entity obtaining the terminal positioning capability from the terminal will introduce positioning delay. Summary of the invention

[0005] The embodiments of the present application provide a method and device for reporting terminal positioning capabilities, so as to reduce the delay of positioning service processing.

[0006] In the first aspect, an embodiment of the present application provides a terminal positioning capability reporting method, which is applied to an access and mobility management function AMF entity, including: obtaining and saving the terminal positioning capability of the terminal; after the positioning service for the target terminal arrives, if the AMF entity saves the terminal positioning capability of the target terminal, the terminal positioning capability of the target terminal is transmitted to the positioning management function LMF entity, so that the LMF sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal.

[0007] Optionally, the AMF entity obtains and saves the terminal positioning capability of the terminal, including: the AMF entity obtains and saves the terminal positioning capability of the terminal from the terminal; or, the AMF entity obtains and saves the terminal positioning capability of the target terminal from the LMF entity; or, the AMF entity obtains and saves the terminal positioning capability of the target terminal from the serving base station of the target terminal.

[0008] Optionally, the AMF entity obtains and saves the terminal positioning capability of the terminal from the terminal, including: before the positioning service for the target terminal arrives, the AMF entity receives a non-access layer NAS message sent by the terminal; the NAS message carries a container containing the terminal positioning capability; the AMF entity saves the container containing the terminal positioning capability carried in the NAS message to the terminal context of the terminal.

[0009] Optionally, the NAS message is an attachment request Attach Request message, which is sent after the terminal accesses the network for the first time; or, the NAS message is a tracking area update request TAU ​​Request message, which is sent after the terminal positioning capability of the terminal is updated.

[0010] Optionally, the AMF entity obtains and saves the terminal positioning capability of the target terminal from the LMF entity, including: after the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, the AMF entity sends a positioning request to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if the terminal positioning capability of the target terminal is not saved in the AMF entity, the AMF entity notifies the LMF entity to establish a positioning service session, and then sends a first indication message to the LMF entity to indicate that the target terminal is not saved in the AMF entity. terminal positioning capability; or, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates to obtain the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, then the AMF entity sends a first capability request response message to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; the AMF entity receives the container containing the terminal positioning capability of the target terminal sent by the LMF entity, and saves the container containing the terminal positioning capability of the target terminal to the terminal context of the terminal.

[0011] Optionally, the AMF entity obtains and saves the terminal positioning capability of the target terminal from the service base station of the target terminal, including: after the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, the AMF entity sends an NG interface request message to the service base station of the target terminal, and the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal; the AMF entity receives the NG interface message returned by the base station, and saves the container containing the terminal positioning capability of the target terminal carried in the NG interface message to the terminal context of the target terminal.

[0012] Optionally, the AMF entity transmits the terminal positioning capability of the target terminal to the LMF entity, including: the AMF entity sends a positioning request for the target terminal to the LMF entity, and the positioning request carries a container containing the terminal positioning capability of the target terminal; or, after the AMF entity notifies the LMF entity to establish a positioning service session, it sends a second indication message to the LMF entity, and the second indication message carries a container containing the terminal positioning capability of the target terminal.

[0013] Optionally, before the AMF entity transmits the terminal positioning capability of the target terminal to the LMF entity, the method also includes: the AMF entity receives a first capability request message sent by the LMF entity; the first capability request message indicates to obtain the terminal positioning capability of the target terminal; the AMF entity transmits the terminal positioning capability of the target terminal to the LMF entity, including: the AMF entity sends a second capability request response message containing a container of the terminal positioning capability of the target terminal to the LMF entity according to the first capability request message.

[0014] In the second aspect, an embodiment of the present application provides a terminal positioning capability reporting method, which is applied to a terminal, including: reporting the terminal positioning capability of the terminal to an access and mobility management function AMF entity; or, reporting the terminal positioning capability of the terminal to a positioning management function LMF entity; or, reporting the terminal positioning capability of the terminal to a serving base station of the terminal.

[0015] Optionally, the terminal reporting the terminal positioning capability of the terminal to the AMF entity includes: the terminal adding the terminal positioning capability to a container, and adding the container including the terminal positioning capability to a NAS message;

[0016] The terminal reports the NAS message of the container containing the terminal positioning capability to the AMF entity.

[0017] Optionally, the NAS message is an attach request Attach Request message, or the NAS message is a tracking area update request TAU ​​Request message.

[0018] Optionally, the terminal reporting the terminal positioning capability of the terminal to the LMF entity includes:

[0019] If the terminal receives a Long Term Evolution Positioning Protocol (LPP) positioning capability request message sent by the LMF entity, the terminal positioning capability is reported to the LMF entity according to the LPP positioning capability request message.

[0020] Optionally, the terminal reports the terminal positioning capability of the terminal to the service base station of the terminal, including: if the terminal receives a third capability request message sent by the service base station of the terminal, the terminal reports the terminal positioning capability of the terminal to the base station according to the third capability request message.

[0021] In the third aspect, an embodiment of the present application provides a terminal positioning capability reporting method, which is applied to a positioning management function LMF entity, including: obtaining the terminal positioning capability of the target terminal from an access and mobility management function AMF entity; or, obtaining the terminal positioning capability of the target terminal from the target terminal, and / or the service base station of the target terminal, and passing the acquired terminal positioning capability of the target terminal to the AMF entity; setting a positioning method for the target terminal according to the terminal positioning capability.

[0022] Optionally, the LMF entity obtains the terminal positioning capability of the target terminal from the AMF entity, including: after the positioning service for the target terminal arrives, the LMF entity receives a positioning request for the target terminal sent by the AMF entity, and the positioning request carries a container containing the terminal positioning capability of the target terminal; or, after the LMF entity establishes a positioning service session, it receives a second indication message sent by the AMF entity, and the second indication message carries a container containing the terminal positioning capability of the target terminal.

[0023] Optionally, before the LMF entity obtains the terminal positioning capability of the target terminal from the AMF entity, the method also includes: the LMF entity sends a first capability request message to the AMF entity; the first capability request message indicates to obtain the terminal positioning capability of the target terminal; the LMF entity obtains the terminal positioning capability of the target terminal from the AMF entity, including: the LMF entity receives a second capability request response message sent by the AMF entity containing a container of the terminal positioning capability of the target terminal.

[0024] Optionally, before the LMF entity obtains the terminal positioning capability of the target terminal from the target terminal and / or the service base station of the target terminal, the method also includes: the LMF entity receives a positioning request sent by the AMF entity, and the positioning request carries indication information that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, the LMF entity receives a first indication message sent by the AMF entity, and the first indication message is sent by the AMF entity after notifying the LMF entity to establish a positioning service session, indicating that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, the LMF entity receives a first capability request response message sent by the AMF entity, and the first capability request response message is a response message of the AMF entity to the first capability request message sent by the LMF entity, and the first capability request message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity.

[0025] Optionally, the LMF entity obtains the terminal positioning capability of the target terminal from the target terminal, and / or the service base station of the target terminal, including: the LMF entity sends a Long Term Evolution Positioning Protocol LPP request message to the target terminal, and the LMF entity receives the terminal positioning capability sent by the target terminal; or, the LMF entity sends a New Air Interface Positioning Additional Protocol NRPPa request message to the service base station of the target terminal, and the NRPPa request message is used to instruct the service base station of the target terminal to obtain the terminal positioning capability of the target terminal; the LMF entity receives an NRPPa message returned by the service base station of the target terminal, and the NRPPa message carries the terminal positioning capability of the target terminal.

[0026] In a fourth aspect, an embodiment of the present application provides a terminal positioning capability reporting method, which is applied to a base station, including: receiving a capability acquisition message sent by an access and mobility management function AMF entity or a positioning management function LMF entity; obtaining the terminal positioning capability of the target terminal from the target terminal; and reporting the terminal positioning capability of the target terminal to the AMF entity or the LMF entity.

[0027] Optionally, the base station receives a capability acquisition message sent by an access and mobility management function AMF entity or a positioning management function LMF entity, including: the base station receives an NG interface request message sent by the AMF entity, and the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal; the base station receives a new air interface positioning additional protocol NRPPa message sent by the LMF entity, and the NRPPa request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal.

[0028] Optionally, the base station reports the terminal positioning capability of the target terminal to the AMF entity or the LMF entity, including: the base station reports the container containing the terminal positioning capability of the target terminal to the AMF entity through an NG interface message; or, the base station reports the container containing the terminal positioning capability of the target terminal to the LMF entity through an NRPPa message.

[0029] Optionally, the base station obtains the terminal positioning capability of the target terminal from the target terminal, including: the base station sends a third capability request message to the target terminal, requesting to obtain the terminal positioning capability of the target terminal; and the base station receives the terminal positioning capability of the target terminal returned by the target terminal.

[0030] In the fifth aspect, an embodiment of the present application provides an access and mobility management function AMF entity, including an acquisition unit and a transmission unit; the acquisition unit is used to acquire and save the terminal positioning capability of the terminal; the transmission unit is used to transmit the terminal positioning capability of the target terminal to the positioning management function LMF entity after the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is saved, so that the LMF sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal.

[0031] In the sixth aspect, an embodiment of the present application provides a terminal, comprising a reporting unit; the reporting unit is used to report the terminal positioning capability of the terminal to an access and mobility management function AMF entity; or, to report the terminal positioning capability of the terminal to a positioning management function LMF entity; or, to report the terminal positioning capability of the terminal to a serving base station of the terminal.

[0032] In the seventh aspect, an embodiment of the present application provides a positioning management function LMF entity, including an acquisition unit and a setting unit; the acquisition unit is used to obtain the terminal positioning capability of the target terminal from the access and mobility management function AMF entity; or, it is used to obtain the terminal positioning capability of the target terminal from the target terminal, and / or the service base station of the target terminal, and pass the acquired terminal positioning capability of the target terminal to the AMF entity; the setting unit is used to set the positioning method for the target terminal according to the terminal positioning capability.

[0033] In the eighth aspect, an embodiment of the present application provides a base station, comprising a receiving unit, an acquisition unit and a reporting unit; the receiving unit is used to receive a capability acquisition message sent by an access and mobility management function AMF entity or a positioning management function LMF entity; the acquisition unit is used to obtain the terminal positioning capability of the target terminal from the target terminal; the reporting unit is used to report the terminal positioning capability of the target terminal to the AMF entity or the LMF entity.

[0034] In the ninth aspect, an embodiment of the present application provides an access and mobility management function AMF entity, including: a memory, a transceiver and a processor; the memory is used to store computer instructions; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute any method as described in the first aspect.

[0035] In the tenth aspect, an embodiment of the present application provides a terminal, comprising: a memory, a transceiver and a processor; the memory is used to store computer instructions; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute any method as described in the second aspect.

[0036] In the eleventh aspect, an embodiment of the present application provides a positioning management function LMF entity, including: a memory, a transceiver and a processor; the memory is used to store computer instructions; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute any method as described in any one of the third aspects.

[0037] In the twelfth aspect, an embodiment of the present application provides a base station, comprising: a memory, a transceiver and a processor; the memory is used to store computer instructions; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute any method as described in any one of the fourth aspects.

[0038] In a thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the storage medium stores computer instructions, and when the computer instructions are executed by a processor, a method as described in any one of the first aspects is implemented.

[0039] In a fourteenth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the storage medium stores computer instructions, and when the computer instructions are executed by a processor, a method as described in any one of the second aspects is implemented.

[0040] In a fifteenth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the storage medium stores computer instructions, and when the computer instructions are executed by a processor, a method as described in any one of the third aspects is implemented.

[0041] In the sixteenth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the storage medium stores computer instructions, and when the computer instructions are executed by a processor, a method as described in any one of the fourth aspects is implemented.

[0042] In the above-mentioned embodiment of the present application, the access and mobility management function AMF entity obtains and saves the terminal positioning capability of the terminal. After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is saved in the AMF entity, the AMF entity transmits the terminal positioning capability of the target terminal to the positioning management function LMF entity, so that the LMF sets the positioning method for the target terminal according to the terminal positioning capability. In the above process, when the LMF entity needs to obtain the terminal positioning capability of the target terminal, it can be obtained directly from the AMF entity, and there is no need to obtain the terminal positioning capability through interaction with the terminal. Therefore, the positioning delay introduced by the LMF in obtaining the terminal positioning capability during the positioning service processing can be significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the structure of a communication system applicable to an embodiment of the present application;

[0044] Figure 2 A structural block diagram of a communication system applicable to an embodiment of the present application;

[0045] Figure 3 An interactive flow chart of a terminal positioning capability reporting method provided in an embodiment of the present application;

[0046] Figure 4 An interactive flow chart of another terminal positioning capability reporting method provided in an embodiment of the present application;

[0047] Figure 5 An interactive flow chart of another terminal positioning capability reporting method provided in an embodiment of the present application;

[0048] Figure 6 An interactive flow chart of another terminal positioning capability reporting method provided in an embodiment of the present application;

[0049] Figure 7 An interactive flow chart of another terminal positioning capability reporting method provided in an embodiment of the present application;

[0050] Figure 8 A flowchart of a method for reporting terminal positioning capabilities provided in an embodiment of the present application;

[0051] Fig. 9 A flowchart of another terminal positioning capability reporting method provided in an embodiment of the present application;

[0052] Fig.10 A flowchart of another terminal positioning capability reporting method provided in an embodiment of the present application;

[0053] Fig.11 A schematic diagram of the structure of an access and mobility management function AMF entity provided in an embodiment of the present application;

[0054] Fig.12 A schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0055] Fig.13 A schematic diagram of the structure of a location management function LMF entity provided in an embodiment of the present application;

[0056] Fig.14 A schematic diagram of the structure of a base station provided in an embodiment of the present application;

[0057] Fig.15 A schematic diagram of the structure of another access and mobility management function AMF entity provided in an embodiment of the present application;

[0058] Fig.16 A schematic diagram of the structure of another terminal provided in an embodiment of the present application;

[0059] Fig.17 A schematic diagram of the structure of another location management function LMF entity provided in an embodiment of the present application;

[0060] Fig.18 A schematic diagram of the structure of another base station provided in an embodiment of the present application. DETAILED DESCRIPTION

[0061] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0062] It should be noted that the “first” and “second” in the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0063] Figure 1 is a schematic diagram of the structure of a communication system applicable to an embodiment of the present application, Figure 2 : is a block diagram of a communication system applicable to the embodiments of the present application. The communication system may be a 5G communication system, such as Figure 1 and Figure 2As shown, the 5G communication system includes a 5G core network (5G Core, 5GC), a base station 103 and a terminal 104. Among them, the network elements constituting the 5G core network include an access mobility management function entity (Access and Mobility Management Function, AMF) entity 101 for supporting control plane functions such as access and mobility management and an LMF entity 102 for providing positioning services.

[0064] As a radio access network (RAN) node, the base station 103 may include a gNB that provides wireless network user plane and control plane protocols and functions for a 5G network or an eNB that provides wireless network user plane and control plane protocols and functions for 4G network users.

[0065] The terminal 104 may be a terminal device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal 104 may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). The terminal 104 may communicate with one or more core networks via a radio access network.

[0066] It should be noted that in the following description, the AMF entity is referred to as AMF, and the LMF entity is referred to as LMF.

[0067] In actual applications, the terminal 104 and the base station 103 in the access network can establish an RRC connection through the Radio Resource Control (RRC) protocol to achieve the transmission of terminal wireless access performance information, acquisition of system information, acquisition of wireless resources and mobility management.

[0068] The RRC connection state of the terminal 104 may include: RRC connected (RRC_CONNECTED) state, RRC idle (RRC_IDLE) state and RRC inactive (RRC_INACTIVE) state. The RRC_CONNECTED state means that the terminal has established an RRC connection with the base station, the RRC_IDLE state means that the terminal has not established an RRC connection with the base station, and the RRC_INACTIVE state means that the RRC connection between the terminal and the base station is not activated.

[0069] When the terminal 104 is in the RRC_INACTIVE state, the terminal remains in the Connection Management-CONNECTED (CM-CONNECTED) state, and the terminal can perform RAN node switching within the RAN Notification Area (RNA) where the serving base station is located without notifying the AMF. When the terminal 104 is in the RRC_INACTIVE state, the last base station serving the terminal retains the context information of the terminal and the next generation (NG) interface connection between the terminal and the AMF.

[0070] It should be noted that the above architecture is described by taking the 5G system architecture as an example. The embodiments of the present application may also be applicable to the 5G evolution system, or to other communication systems (such as 4G communication systems), or to the system architecture of the hybrid networking of the 5G system and other communication systems (such as 4G systems), which are not listed one by one here.

[0071] Based on the above system structure, the LMF in the core network provides positioning services for the terminal with the cooperation of AMF.

[0072] In the existing R16 positioning technology, during the positioning service processing, the LMF entity needs to first obtain the terminal positioning capability related to positioning from the terminal, and then allocate a suitable positioning method to the terminal and perform measurement configuration based on the terminal positioning capability. In other words, after establishing a positioning service session, the LMF entity needs to interact with the terminal to obtain the terminal positioning capability of the terminal. During the positioning service processing, the above interaction process between the LMF entity and the terminal will introduce positioning delay.

[0073] Based on this, the embodiment of the present application provides a terminal positioning capability reporting method and device, wherein the AMF obtains and saves the terminal positioning capability of the terminal. After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is saved in the AMF, the AMF entity can transmit the terminal positioning capability of the target terminal to the LMF, so that the LMF sets the positioning method for the target terminal according to the terminal positioning capability, without the need to obtain the terminal positioning capability by interacting with the terminal. Therefore, the positioning delay introduced by the LMF in obtaining the terminal positioning capability during the positioning service processing can be significantly reduced.

[0074] The following is a detailed description of the terminal positioning capability reporting method and device provided in this application through specific embodiments.

[0075] Figure 3 This is a signaling interaction diagram of a terminal positioning capability reporting method provided in an embodiment of the present application. Figure 3 As shown, the process may include the following steps:

[0076] Step S301: AMF obtains and saves the terminal positioning capability of the target terminal.

[0077] In some embodiments, the AMF may obtain the terminal positioning capability from the target terminal. Before the positioning service for the target terminal arrives, the target terminal may send a container containing the terminal positioning capability to the AMF via a Non Access Stratum (NAS) message.

[0078] Specifically, in one embodiment, the NAS message may be an Attach Request message. When the target terminal accesses the network for the first time, the target terminal may send a container including the terminal positioning capability to the AMF via an AttachRequest message.

[0079] In another embodiment, the NAS message may be a TAU Request (Tracking Area Update Request) message. When the terminal positioning capability of the target terminal is changed or updated, the target terminal may initiate a TAU update process and send a container containing the updated terminal positioning capability to the AMF via a TAU Request message.

[0080] After receiving the NAS message sent by the target terminal, the AMF can save the container containing the terminal positioning capability of the target terminal carried in the NAS message to the corresponding terminal context in the AMF.

[0081] In other embodiments, the AMF may also obtain the terminal positioning capability of the target terminal through the serving base station or LMF of the target terminal.

[0082] Step S302: AMF receives the positioning service for the target terminal.

[0083] Step S303, AMF sends the terminal positioning capability of the target terminal to LMF.

[0084] The positioning service of the target terminal may be a positioning capability request initiated by the target terminal to itself, or may be a positioning capability request initiated by an external server to the target terminal.

[0085] The AMF receives the positioning service for the target terminal, selects the corresponding LMF for the target terminal, and sends the terminal positioning capability of the target terminal to the selected LMF.

[0086] Optionally, if a container containing the terminal positioning capability of the target terminal is stored in the AMF, the AMF may actively report the stored container containing the terminal positioning capability of the target terminal to the LMF selected for the target terminal, so that the LMF sets the positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0087] In one embodiment, the AMF may send a location request for the target terminal to the selected LMF, where the location request carries a container including the terminal location capability of the target terminal.

[0088] In another embodiment, after the AMF selects the LMF for the target terminal, it can notify the LMF to establish a positioning service session, and then send a second indication message to the LMF, where the second indication message carries a container containing the terminal positioning capability of the target terminal.

[0089] Step S304: LMF sets a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0090] In the above embodiment, after the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is saved in the AMF, the AMF entity can transmit the terminal positioning capability of the target terminal to the LMF, so that the LMF sets the positioning method for the target terminal according to the terminal positioning capability, without having to obtain the terminal positioning capability through interaction with the terminal. Therefore, the positioning delay introduced by the LMF in obtaining the terminal positioning capability during the positioning service processing can be significantly reduced.

[0091] Furthermore, since each LMF has a certain influence area, when the target terminal is within the influence area of ​​a certain LMF, the LMF can provide positioning services for the target terminal. When the target terminal leaves the influence area of ​​the LMF, the LMF can no longer provide positioning services for the target terminal, and the AMF needs to select a new LMF to provide positioning services for the target terminal. If the terminal positioning capability of the target terminal is saved in the AMF, the terminal positioning capability of the target terminal can be directly transmitted to the new LMF to avoid the need for the new LMF to interact with the target terminal to regain the terminal positioning capability after reselecting a new LMF for the target terminal.

[0092] In addition, in the R17 positioning technology, it is hoped that the terminal can be positioned in both IDLE and INACTIVE states. To achieve this positioning requirement, how to report the terminal positioning capability is also a key consideration.

[0093] In the above embodiment, when the terminal accesses the network for the first time, or when the terminal positioning capability sends a change or update, the terminal positioning capability is uploaded to the AMF through a NAS message for storage, so that positioning in the IDLE / INACTIVE state can be supported.

[0094] Figure 4 This is a signaling interaction diagram of another terminal positioning capability reporting method provided in an embodiment of the present application. Figure 4 As shown, the process may include the following steps:

[0095] Step S401: AMF obtains and saves the terminal positioning capability of the target terminal.

[0096] Step S402: AMF receives the positioning service for the target terminal.

[0097] Step S403: AMF sends a positioning request to LMF.

[0098] The AMF receives the positioning service for the target terminal, selects the corresponding LMF for the target terminal, and sends a positioning request to the selected LMF, where the positioning request is used to notify the selected LMF to establish a positioning service session.

[0099] Step S404: LMF sends a first capability request message to AMF.

[0100] After LMF establishes the positioning service session according to the notification of AMF, it sends a first capability request message to AMF, where the first capability request message indicates the terminal positioning capability of the target terminal.

[0101] Step S405: AMF sends a second capability request response message to LMF.

[0102] After receiving the first capability request message sent by LMF, if AMF stores a container containing the terminal positioning capability of the target terminal, AMF may send a second capability request response message containing the container of the terminal positioning capability of the target terminal to LMF according to the first capability request message, so that the LMF sets the positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0103] Step S406: LMF sets a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0104] Figure 5 This is a signaling interaction diagram of another terminal positioning capability reporting method provided in an embodiment of the present application. Figure 5 As shown, the process may include the following steps:

[0105] S501, AMF receives the positioning service for the target terminal.

[0106] S502, AMF sends a positioning request to LMF, and the positioning request carries indication information indicating that the terminal positioning capability of the target terminal is not saved in AMF.

[0107] The AMF receives the positioning service for the target terminal and checks whether a container containing the terminal positioning capability of the target terminal is stored. If the AMF contains a container containing the terminal positioning capability of the target terminal, the Figure 3 The method shown sends the terminal positioning capability of the target terminal to the LMF. If the AMF does not store the container containing the terminal positioning capability of the target terminal, the AMF sends a positioning request to the LMF, and the positioning request carries indication information indicating that the terminal positioning capability of the target terminal is not stored in the AMF.

[0108] S503, LMF obtains the terminal positioning capability of the target terminal.

[0109] In one embodiment, after receiving the positioning request sent by the AMF, the LMF may send an LPP (Long Term Evolution Positioning Protocol) request message to the target terminal according to the positioning request, and the LPP request message is used to obtain the terminal positioning capability of the target terminal. After receiving the LPP request message sent by the LMF, the target terminal may send a container containing its terminal positioning capability to the LMF.

[0110] In another embodiment, after receiving the positioning request sent by the AMF, the LMF may send an NRPPa (New Radio Positioning Protocol annex) request message to the service base station of the target terminal according to the positioning request, and the NRPPa request message is used to obtain the terminal positioning capability of the target terminal. After receiving the NRPPa request message sent by the LMF, if the base station does not store the terminal positioning capability of the target terminal targeted by the NRPPa request message, it may send a third capability request message to the target terminal, and the third capability request message is used to obtain the terminal positioning capability of the target terminal.

[0111] After receiving the third capability request message sent by the base station, the target terminal can send a container containing its terminal positioning capability to the base station according to the third capability request message. After receiving the container containing its terminal positioning capability sent by the target terminal, the base station can send an NRPPa message to the LMF, and the NRPPa message can carry a container containing the terminal positioning capability of the target terminal.

[0112] In some embodiments, after receiving the NRPPa request message sent by the LMF, if the base station stores the terminal positioning capability of the target terminal targeted by the NRPPa request message, the stored container containing the terminal positioning capability of the target terminal can be sent directly to the LMF through the NRPPa message.

[0113] S504, LMF sets a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0114] After receiving the terminal positioning capability of the target terminal sent by the target terminal or the serving base station of the target terminal, the LMF can set a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0115] S505, LMF sends the terminal positioning capability of the target terminal to AMF.

[0116] S506, AMF saves the terminal positioning capability of the target terminal.

[0117] After receiving the terminal positioning capability of the target terminal sent by the target terminal or the serving base station of the target terminal, the LMF can send the container containing the terminal positioning capability of the target terminal to the AMF, so that the AMF saves the received container containing the terminal positioning capability of the target terminal in the corresponding terminal context.

[0118] Figure 6 This is a signaling interaction diagram of another terminal positioning capability reporting method provided in an embodiment of the present application. Figure 6 As shown, the process may include the following steps:

[0119] S601, AMF receives the positioning service for the target terminal.

[0120] S602, LMF sends a first capability request message to AMF.

[0121] After AMF receives the positioning service for the target terminal, LMF can send a first capability request message to AMF, where the first capability request message indicates the terminal positioning capability of the target terminal.

[0122] S603, AMF sends a first capability request response message to LMF, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity.

[0123] After receiving the first capability request message sent by LMF, AMF needs to confirm whether a container containing the terminal positioning capability of the target terminal is saved. If AMF contains a container containing the terminal positioning capability of the target terminal, it can be Figure 4 The method shown sends a second capability request response message of a container containing the terminal positioning capability of the target terminal to the LMF. If the container containing the terminal positioning capability of the target terminal is not stored in the AMF, the AMF sends a first capability request response message to the LMF, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not stored in the AMF entity.

[0124] S604, LMF obtains the terminal positioning capability of the target terminal.

[0125] In one embodiment, after receiving the first capability request response message sent by the AMF, the LMF may send an LPP request message to the target terminal according to the first capability request response message, and the LPP request message is used to obtain the terminal positioning capability of the target terminal. After receiving the LPP request message sent by the LMF, the target terminal may send a container containing its terminal positioning capability to the LMF.

[0126] In another embodiment, after receiving the first capability request response message sent by AMF, LMF may send an NRPPa request message to the service base station of the target terminal according to the first capability request response message, and the NRPPa request message is used to obtain the terminal positioning capability of the target terminal. After receiving the NRPPa request message sent by LMF, if the base station does not store the terminal positioning capability of the target terminal targeted by the NRPPa request message, it may send a third capability request message to the target terminal, and the third capability request message is used to obtain the terminal positioning capability of the target terminal.

[0127] After receiving the third capability request message sent by the base station, the target terminal can send a container containing its terminal positioning capability to the base station according to the third capability request message. After receiving the container containing its terminal positioning capability sent by the target terminal, the base station can send an NRPPa message to the LMF, and the NRPPa message can carry a container containing the terminal positioning capability of the target terminal.

[0128] S605, LMF sets a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0129] After receiving the terminal positioning capability of the target terminal sent by the target terminal or the serving base station of the target terminal, the LMF can set a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0130] S606, LMF sends the terminal positioning capability of the target terminal to AMF.

[0131] S607, AMF saves the terminal positioning capability of the target terminal.

[0132] After receiving the terminal positioning capability of the target terminal sent by the target terminal or the serving base station of the target terminal, the LMF can send the container containing the terminal positioning capability of the target terminal to the AMF, so that the AMF saves the received container containing the terminal positioning capability of the target terminal in the corresponding terminal context.

[0133] Figure 7 This is a signaling interaction diagram of another terminal positioning capability reporting method provided in an embodiment of the present application. Figure 7 As shown, the process may include the following steps:

[0134] S701, AMF receives the positioning service for the target terminal.

[0135] S702, AMF sends a first indication message to LMF, and the first indication message carries indication information indicating that the terminal positioning capability of the target terminal is not saved in AMF.

[0136] The AMF receives the positioning service for the target terminal and checks whether a container containing the terminal positioning capability of the target terminal is stored. If the AMF contains a container containing the terminal positioning capability of the target terminal, the Figure 3 The method shown sends the terminal positioning capability of the target terminal to the LMF. If the AMF does not store the container containing the terminal positioning capability of the target terminal, the AMF sends a first indication message to the LMF after notifying the LMF to establish a positioning service session. The first indication message carries indication information indicating that the terminal positioning capability of the target terminal is not stored in the AMF.

[0137] S703, LMF obtains the terminal positioning capability of the target terminal.

[0138] In one embodiment, after receiving the first indication message sent by the AMF, the LMF may send an LPP request message to the target terminal according to the first indication message, and the LPP request message is used to obtain the terminal positioning capability of the target terminal. After receiving the LPP request message sent by the LMF, the target terminal may send a container containing its terminal positioning capability to the LMF.

[0139] In another embodiment, after receiving the positioning request sent by the AMF, the LMF may send an NRPPa request message to the service base station of the target terminal according to the positioning request, and the NRPPa request message is used to obtain the terminal positioning capability of the target terminal. After receiving the NRPPa request message sent by the LMF, if the base station does not store the terminal positioning capability of the target terminal targeted by the NRPPa request message, it may send a third capability request message to the target terminal, and the third capability request message is used to obtain the terminal positioning capability of the target terminal.

[0140] After receiving the third capability request message sent by the base station, the target terminal can send a container containing its terminal positioning capability to the base station according to the third capability request message. After receiving the container containing its terminal positioning capability sent by the target terminal, the base station can send an NRPPa message to the LMF, and the NRPPa message can carry a container containing the terminal positioning capability of the target terminal.

[0141] S704, LMF sets a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0142] After receiving the terminal positioning capability of the target terminal sent by the target terminal or the serving base station of the target terminal, the LMF can set a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0143] S705, LMF sends the terminal positioning capability of the target terminal to AMF.

[0144] S706, AMF saves the terminal positioning capability of the target terminal.

[0145] After receiving the terminal positioning capability of the target terminal sent by the target terminal or the serving base station of the target terminal, the LMF can send the container containing the terminal positioning capability of the target terminal to the AMF, so that the AMF saves the received container containing the terminal positioning capability of the target terminal in the corresponding terminal context.

[0146] The embodiment of the present application also provides a method for reporting terminal positioning capability, which may include the following steps:

[0147] Step 1: AMF receives the positioning service for the target terminal.

[0148] Step 2: AMF sends an NG interface request message to the serving base station of the target terminal.

[0149] The AMF receives the positioning service for the target terminal and checks whether a container containing the terminal positioning capability of the target terminal is stored. If the AMF contains a container containing the terminal positioning capability of the target terminal, the Figure 3 The method shown sends the terminal positioning capability of the target terminal to the LMF. If the AMF does not store the container containing the terminal positioning capability of the target terminal, the AMF sends an NG interface request message to the serving base station of the target terminal, and the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal.

[0150] Step 3: The base station sends a third capability request message to the target terminal.

[0151] After receiving the NG interface request message sent by AMF, if the base station does not store the terminal positioning capability of the target terminal targeted by the NG interface request message, it can send a third capability request message to the target terminal, and the third capability request message is used to obtain the terminal positioning capability of the target terminal.

[0152] Step 4: The target terminal sends the terminal positioning capability of the target terminal to the base station.

[0153] After receiving the third capability request message sent by the base station, the target terminal may send a container including the terminal positioning capability to the base station according to the third capability request message.

[0154] Step 5: The base station sends an NG interface message to the AMF.

[0155] Step 6: AMF saves the terminal positioning capability of the target terminal.

[0156] After receiving the container containing the terminal positioning capability sent by the target terminal, the base station can send an NG interface message to the AMF, which can carry the container containing the terminal positioning capability of the target terminal. After receiving the NG interface message, the AMF can save the container containing the terminal positioning capability of the target terminal in the corresponding terminal context.

[0157] Step 7: AMF sends the terminal positioning capability of the target terminal to LMF.

[0158] Step 8: LMF sets a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0159] After receiving the NG interface message sent by the base station, the AMF may also select an LMF for the target terminal and send the terminal positioning capability of the target terminal to the selected LMF, so that the LMF sets a positioning method for the target terminal according to the terminal positioning capability of the target terminal.

[0160] The terminal positioning capability reporting method provided by the present application is described in detail below through some specific embodiments.

[0161] Embodiment 1: Reporting of terminal positioning capability.

[0162] Example 1-1: The terminal actively reports the container containing the UE positioning capability to the AMF during registration.

[0163] Step 1: The UE sends an Attach Request message to the AMF, which carries a container containing the UE positioning capabilities.

[0164] Step 2: After receiving the Attach Request message sent by the UE, the AMF takes out the container containing the UE positioning capability and stores it in the corresponding UE context.

[0165] Example 1-2: When the UE positioning capability is updated, the container containing the updated UE positioning capability is reported to the AMF through the TAU update process.

[0166] Step 1: The positioning capability of the UE is changed or updated.

[0167] Step 2: The UE initiates the TAU update process and sends a TAU Request message to the AMF, which carries the updated container containing the UE positioning capability.

[0168] Step 3: After receiving the TAU Request message sent by the UE, the AMF takes out the container containing the UE positioning capability and stores it in the corresponding UE context.

[0169] Example 1-3: AMF triggers the base station to initiate a UE positioning capability query to request the UE to report its UE positioning capability information.

[0170] Step 1: AMF sends an NG interface message to the base station to request the corresponding UE positioning capability information, triggering the base station to initiate a UE positioning capability query to the UE.

[0171] Step 2: The base station sends a UE positioning capability query message to the UE, instructing the UE to report its UE positioning capability information.

[0172] Step 3: The UE transmits the container including the UE positioning capability requested by the base station to the base station as a response.

[0173] Step 4: After the base station obtains the UE positioning capability information from the UE, it reports the container containing the UE positioning capability to the AMF through the NG interface message.

[0174] Step 5: After receiving the container containing the UE positioning capability reported by the base station, the AMF stores it in the corresponding UE context.

[0175] Embodiment 1-4: LMF triggers the base station to initiate a UE positioning capability query to request the UE to report its UE positioning capability information.

[0176] Step 1: After a positioning service session has been established in the network, the LMF sends an NRPPa message to the base station to request the corresponding UE positioning capability information, triggering the base station to initiate a UE positioning capability query to the UE.

[0177] Step 2: The base station sends a UE positioning capability query message to the UE, instructing the UE to report its UE positioning capability information.

[0178] Step 3: The UE transmits the container including the UE positioning capability requested by the base station to the base station as a response.

[0179] Step 4: After the base station obtains the UE positioning capability information from the UE, it reports the container containing the UE positioning capability to the corresponding LMF through the NRPPa message.

[0180] Embodiment 2: When AMF stores UE positioning capability information, interaction between AMF and LMF regarding UE positioning capability information.

[0181] Example 2-1: When the AMF sends a positioning request to the selected LMF, it carries a container containing the UE positioning capability.

[0182] Step 1: UE or external client initiates a positioning service request to AMF.

[0183] Step 2: AMF selects the corresponding LMF for the UE or external client that initiates the service request.

[0184] Step 3: AMF checks whether a container containing the corresponding UE positioning capabilities is stored therein.

[0185] Step 4: If the AMF stores a container containing the corresponding UE positioning capability, when the AMF sends a positioning request to the selected LMF, the container containing the corresponding UE positioning capability is carried in the positioning request.

[0186] Step 5: If the AMF does not store the container containing the corresponding UE positioning capability, the AMF indicates in the positioning request that there is no corresponding UE positioning capability information when sending the positioning request to the selected LMF. After receiving the message, the LMF sends an LPP message to the UE to request the UE positioning capability information not stored in the AMF, or sends an NRPPa message to trigger the base station to initiate the UE positioning capability acquisition process to obtain the UE positioning capability information not stored in the AMF.

[0187] Step 6: After receiving the container containing the UE positioning capability of the corresponding UE, the LMF passes the container containing the UE positioning capability of the UE to the AMF.

[0188] Step 7: If AMF receives a new container containing UE positioning capabilities from LMF, AMF will store it in the corresponding UE context.

[0189] Example 2-2: AMF proactively reports its UE positioning capability information to LMF.

[0190] Step 1: AMF stores the corresponding UE positioning capability information in the UE context. When a positioning service request arrives, AMF selects LMF for the UE and establishes a positioning service session.

[0191] Step 2: AMF actively queries whether a container containing the positioning capabilities of the corresponding UE is stored in its UE context.

[0192] Step 3: After querying, AMF finds that the container containing the positioning capability of the corresponding UE is stored in its context, then AMF directly passes the container containing the positioning capability of the corresponding UE to the LMF selected for the UE.

[0193] Example 2-3: After the AMF fails to actively report its UE positioning capability to the LMF, the AMF initiates UE positioning capability acquisition to the base station.

[0194] Step 1: AMF stores the corresponding UE positioning capability information in the UE context. When a positioning service request arrives, AMF selects LMF for the UE and establishes a positioning service session.

[0195] Step 2: AMF actively queries whether a container containing the positioning capabilities of the corresponding UE is stored in its UE context.

[0196] Step 3: After querying, AMF finds that its context does not store the container containing the positioning capability of the corresponding UE. AMF will send an indication message to LMF, indicating that there is no positioning capability information of the corresponding UE.

[0197] Step 4: AMF sends an NG interface message to trigger the base station to initiate a UE positioning capability acquisition process to obtain and store the corresponding UE positioning capability information.

[0198] Step 5: After the AMF obtains the container containing the positioning capability of the corresponding UE, it passes it to the LMF selected for the UE.

[0199] Example 2-4: After the AMF fails to proactively report its UE positioning capability to the LMF, the LMF directly initiates the LPP process to obtain the UE positioning capability.

[0200] Step 1: AMF stores the corresponding UE positioning capability information in the UE context. When a positioning service request arrives, AMF selects LMF for the UE and establishes a positioning service session.

[0201] Step 2: AMF actively queries whether a container containing the positioning capabilities of the corresponding UE is stored in its UE context.

[0202] Step 3: After querying, if AMF finds that its context does not store the container containing the positioning capability of the corresponding UE, AMF will send an indication message to LMF, indicating that there is no positioning capability information of the corresponding UE. Optionally, AMF will also carry in the message an indication that LMF will initiate a positioning capability request process to the UE to obtain the UE positioning capability information of the corresponding UE that AMF does not store.

[0203] Step 4: After receiving the message, LMF sends an LPP message to the UE to request the UE positioning capability information of the corresponding UE that is not stored in AMF.

[0204] Step 5: After receiving the LPP capability request message, the UE returns the requested UE positioning capability information to the LMF as a response.

[0205] Step 6: After LMF receives the UE positioning capability information returned by the UE, it will also pass the UE positioning capability information to AMF.

[0206] Step 7: If AMF receives new UE positioning capability information from LMF, AMF will store it in the container containing UE positioning capability in the corresponding UE context.

[0207] Example 2-5: After the AMF fails to proactively report its UE positioning capability to the LMF, the LMF initiates UE positioning capability acquisition to the base station.

[0208] Step 1: AMF stores the corresponding UE positioning capability information in the UE context. When a positioning service request arrives, AMF selects LMF for the UE and establishes a positioning service session.

[0209] Step 2: AMF actively queries whether a container containing the positioning capabilities of the corresponding UE is stored in its UE context.

[0210] Step 3: After querying, if AMF finds that its context does not store the container containing the positioning capability of the corresponding UE, AMF will send an indication message to LMF, indicating that there is no positioning capability information of the corresponding UE. Optionally, AMF will also carry in the message an indication that LMF will initiate a positioning capability request process to the UE to obtain the UE positioning capability information of the corresponding UE that AMF does not store.

[0211] Step 4: After receiving the message, LMF sends an NRPPa message to trigger the base station to initiate a UE positioning capability acquisition process to obtain the UE positioning capability information of the corresponding UE that is not stored in AMF.

[0212] Step 5: After LMF receives the container containing the UE positioning capability it requested, it will also pass the container containing the UE positioning capability to AMF.

[0213] Step 6: If AMF receives a new container containing UE positioning capabilities from LMF, AMF will store it in the corresponding UE context.

[0214] Example 2-6: LMF requests AMF to report its UE positioning capability information.

[0215] Step 1: AMF stores the corresponding UE positioning capability information in the UE context. When a positioning service request arrives, AMF selects LMF for the UE and establishes a positioning service session.

[0216] Step 2: LMF sends a UE positioning capability request message to AMF, requesting specific UE positioning capability information.

[0217] Step 3: After receiving the UE positioning capability request message, the AMF queries whether a container containing the positioning capability of the corresponding UE is stored in its UE context.

[0218] Step 4: After querying, AMF finds that its context stores a container containing the positioning capabilities of the corresponding UE. AMF returns a positioning capability request response message to LMF, which carries a container containing the UE positioning capabilities requested by LMF.

[0219] Example 2-7: After LMF fails to request AMF to report its UE positioning capability, AMF initiates UE positioning capability acquisition to the base station.

[0220] Step 1: AMF stores the corresponding UE positioning capability information in the UE context. When a positioning service request arrives, AMF selects LMF for the UE and establishes a positioning service session.

[0221] Step 2: LMF sends a UE positioning capability request message to AMF, requesting specific UE positioning capability information.

[0222] Step 3: After receiving the UE positioning capability request message, the AMF queries whether a container containing the positioning capability of the corresponding UE is stored in its UE context.

[0223] Step 4: After querying, AMF finds that its context does not store the container containing the positioning capability of the corresponding UE. AMF will send an indication message to LMF, indicating that the requested UE positioning capability information cannot be returned.

[0224] Step 5: AMF sends an NG interface message to trigger the base station to initiate a UE positioning capability acquisition process to obtain and store the UE positioning capability information of the corresponding UE.

[0225] Step 6: After the AMF obtains the container containing the positioning capability of the corresponding UE, it passes it to the LMF selected for the UE.

[0226] Example 2-8: After LMF fails to request AMF to report its UE positioning capability, LMF initiates the LPP process to obtain the UE positioning capability.

[0227] Step 1: AMF stores the corresponding UE positioning capability information in the UE context. When a positioning service request arrives, AMF selects LMF for the UE and establishes a positioning service session.

[0228] Step 2: LMF sends a UE positioning capability request message to AMF, requesting specific UE positioning capability information.

[0229] Step 3: After receiving the UE positioning capability request message, the AMF queries whether a container containing the positioning capability of the corresponding UE is stored in its UE context.

[0230] Step 4: After querying, if AMF finds that its context does not store the container containing the positioning capability of the corresponding UE, AMF will send an indication message to LMF, indicating that the requested UE positioning capability information cannot be returned. Optionally, AMF will also carry in the message an indication that LMF will initiate a positioning capability request process to the UE to obtain the UE positioning capability information of the corresponding UE.

[0231] Step 5: After receiving the message, LMF sends an LPP message to the UE to request the UE positioning capability information of the corresponding UE that is not stored in AMF.

[0232] Step 6: After receiving the LPP capability request message, the UE returns the requested UE positioning capability information to the LMF as a response.

[0233] Step 7: After receiving the UE positioning capability information returned by the UE, the LMF passes the UE positioning capability information to the AMF.

[0234] Step 8: If AMF receives new UE positioning capability information from LMF, AMF will store it in the container containing UE positioning capability in the corresponding UE context.

[0235] Example 2-9: After LMF fails to request AMF to report its UE positioning capability, LMF initiates UE positioning capability acquisition to the base station.

[0236] Step 1: AMF stores the corresponding UE positioning capability information in the UE context. When a positioning service request arrives, AMF selects LMF for the UE and establishes a positioning service session.

[0237] Step 2: LMF sends a UE positioning capability request message to AMF, requesting specific UE positioning capability information.

[0238] Step 3: After receiving the UE positioning capability request message, the AMF queries whether a container containing the positioning capability of the corresponding UE is stored in its UE context.

[0239] Step 4: After querying, if AMF finds that its context does not store the container containing the positioning capability of the corresponding UE, AMF will send an indication message to LMF, indicating that the requested UE positioning capability information cannot be returned. Optionally, AMF will also carry in the message an indication that LMF will initiate a positioning capability request process to the UE to obtain the UE positioning capability information of the corresponding UE.

[0240] Step 5: After receiving the message, LMF sends an NRPPa message to trigger the base station to initiate a UE positioning capability acquisition process to obtain the UE positioning capability information of the corresponding UE that is not stored in AMF.

[0241] Step 6: After LMF receives the container containing the UE positioning capability it requested, it will also pass the container containing the UE positioning capability to AMF.

[0242] Step 7: If AMF receives a new container containing UE positioning capabilities from LMF, AMF will store it in the corresponding UE context.

[0243] Based on the same inventive concept, the present application also provides a method for reporting terminal positioning capabilities, which is applied to the access and mobility management function AMF entity. Figure 8 As shown, the method may include the following steps:

[0244] Step S801: The access and mobility management function AMF entity obtains and saves the terminal positioning capability of the terminal.

[0245] Step S802, after the positioning service for the target terminal arrives, if the AMF entity saves the terminal positioning capability of the target terminal, the AMF entity transmits the terminal positioning capability of the target terminal to the positioning management function LMF entity, so that the LMF sets the positioning method for the target terminal according to the terminal positioning capability.

[0246] Among them, the LMF entity is the LMF entity selected by the AMF entity for the target terminal.

[0247] In an optional embodiment, the AMF entity obtains and saves the terminal positioning capability of the terminal, including:

[0248] The AMF entity obtains and stores the terminal positioning capability of the terminal from the terminal; or,

[0249] The AMF entity obtains and stores the terminal positioning capability of the target terminal from the LMF entity; or,

[0250] The AMF entity obtains and saves the terminal positioning capability of the target terminal from the serving base station of the target terminal.

[0251] In an optional embodiment, the AMF entity obtains and saves the terminal positioning capability of the terminal from the terminal, including:

[0252] Before the positioning service for the target terminal arrives, the AMF entity receives a non-access layer NAS message sent by the terminal; the NAS message carries a container including the positioning capability of the terminal;

[0253] The AMF entity saves the container containing the terminal positioning capability carried in the NAS message into the terminal context of the terminal.

[0254] In an optional embodiment, the NAS message is an attachment request Attach Request message, which is sent after the terminal first accesses the network; or, the NAS message is a tracking area update request TAU ​​Request message, which is sent after the terminal positioning capability of the terminal is updated.

[0255] In an optional embodiment, the AMF entity obtains and saves the terminal positioning capability of the target terminal from the LMF entity, including:

[0256] After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, the AMF entity sends a positioning request to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity;

[0257] Alternatively, if the terminal positioning capability of the target terminal is not saved in the AMF entity, the AMF entity sends a first indication message to the LMF entity after notifying the LMF entity to establish a positioning service session to indicate the terminal positioning capability of the target terminal that is not saved in the AMF entity;

[0258] Alternatively, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, then the AMF entity sends a first capability request response message to the LMF entity, and the first capability request response message indicates the terminal positioning capability of the target terminal not saved in the AMF entity;

[0259] The AMF entity receives the container containing the terminal positioning capability of the target terminal sent by the LMF entity, and saves the container containing the terminal positioning capability of the target terminal into the terminal context of the terminal.

[0260] In an optional embodiment, the AMF entity obtains and saves the terminal positioning capability of the target terminal from the serving base station of the target terminal, including:

[0261] After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, the AMF entity sends an NG interface request message to the serving base station of the target terminal, and the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal;

[0262] The AMF entity receives the NG interface message returned by the base station, and saves the container containing the terminal positioning capability of the target terminal carried in the NG interface message into the terminal context of the target terminal.

[0263] In an optional embodiment, the AMF entity transmits the terminal positioning capability of the target terminal to the LMF entity, including:

[0264] The AMF entity sends a positioning request for the target terminal to the LMF entity, where the positioning request carries a container including the terminal positioning capability of the target terminal; or,

[0265] After the AMF entity notifies the LMF entity to establish a positioning service session, it sends a second indication message to the LMF entity, where the second indication message carries a container containing the terminal positioning capability of the target terminal.

[0266] In an optional embodiment, before the AMF entity transmits the terminal positioning capability of the target terminal to the LMF entity, the method further includes:

[0267] The AMF entity receives a first capability request message sent by the LMF entity; the first capability request message indicates obtaining a terminal positioning capability of the target terminal;

[0268] The AMF entity transmits the terminal positioning capability of the target terminal to the LMF entity, including:

[0269] The AMF entity sends a second capability request response message containing a container of the terminal positioning capability of the target terminal to the LMF entity based on the first capability request message.

[0270] Based on the same inventive concept, an embodiment of the present application further provides a method for reporting terminal positioning capabilities, which is applied to a terminal and includes:

[0271] The terminal reports the terminal positioning capability of the terminal to the access and mobility management function AMF entity; or,

[0272] The terminal reports the terminal positioning capability of the terminal to the positioning management function LMF entity; or,

[0273] The terminal reports the terminal positioning capability of the terminal to the serving base station of the terminal.

[0274] In an optional embodiment, the terminal reports the terminal positioning capability of the terminal to the AMF entity, including:

[0275] The terminal adds the terminal positioning capability to the container, and adds the container including the terminal positioning capability to the NAS message;

[0276] The terminal reports the NAS message of the container containing the terminal positioning capability to the AMF entity.

[0277] In an optional embodiment, the NAS message is an Attach Request message, or the NAS message is a Tracking Area Update Request TAU ​​Request message.

[0278] In an optional embodiment, the terminal reports the terminal positioning capability of the terminal to the LMF entity, including:

[0279] If the terminal receives a Long Term Evolution Positioning Protocol (LPP) positioning capability request message sent by the LMF entity, the terminal positioning capability is reported to the LMF entity according to the LPP positioning capability request message.

[0280] In an optional embodiment, the terminal reporting the terminal positioning capability of the terminal to a serving base station of the terminal includes:

[0281] If the terminal receives the third capability request message sent by the serving base station of the terminal, the terminal reports the terminal positioning capability of the terminal to the base station according to the third capability request message.

[0282] Based on the same inventive concept, the present application also provides a method for reporting terminal positioning capabilities, which is applied to a positioning management function LMF entity. Fig. 9 As shown, the method may include the following steps:

[0283] Step S901, the positioning management function LMF entity obtains the terminal positioning capability of the target terminal from the access and mobility management function AMF entity; or, the LMF entity obtains the terminal positioning capability of the target terminal from the target terminal, and / or the service base station of the target terminal, and passes the obtained terminal positioning capability of the target terminal to the AMF entity.

[0284] Step S902: Setting a positioning method for the target terminal according to the terminal positioning capability.

[0285] In an optional embodiment, the LMF entity obtains the terminal positioning capability of the target terminal from the AMF entity, including:

[0286] After the positioning service for the target terminal arrives, the LMF entity receives the positioning request for the target terminal sent by the AMF entity, where the positioning request carries a container containing the terminal positioning capability of the target terminal; or,

[0287] After the LMF entity establishes the positioning service session, it receives a second indication message sent by the AMF entity, and the second indication message carries a container containing the terminal positioning capability of the target terminal.

[0288] In an optional embodiment, before the LMF entity obtains the terminal positioning capability of the target terminal from the AMF entity, the method further includes:

[0289] The LMF entity sends a first capability request message to the AMF entity; the first capability request message indicates obtaining the terminal positioning capability of the target terminal;

[0290] The LMF entity obtains the terminal positioning capability of the target terminal from the AMF entity, including:

[0291] The LMF entity receives a second capability request response message sent by the AMF entity and containing a container of the terminal positioning capability of the target terminal.

[0292] In an optional embodiment, before the LMF entity obtains the terminal positioning capability of the target terminal from the target terminal and / or the serving base station of the target terminal, the method further includes:

[0293] The LMF entity receives a positioning request sent by the AMF entity, and the positioning request carries indication information indicating that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, the LMF entity receives a first indication message sent by the AMF entity, and the first indication message is sent by the AMF entity after notifying the LMF entity to establish a positioning service session, indicating that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, the LMF entity receives a first capability request response message sent by the AMF entity, and the first capability request response message is a response message of the AMF entity to the first capability request message sent by the LMF entity, and the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity.

[0294] In an optional embodiment, the LMF entity obtains the terminal positioning capability of the target terminal from the target terminal and / or a serving base station of the target terminal, including:

[0295] The LMF entity sends a Long Term Evolution Positioning Protocol LPP request message to the target terminal, and the LMF entity receives the terminal positioning capability sent by the target terminal; or,

[0296] The LMF entity sends a New Air Interface Positioning Additional Protocol NRPPa request message to the service base station of the target terminal, and the NRPPa request message is used to instruct the service base station of the target terminal to obtain the terminal positioning capability of the target terminal; the LMF entity receives the NRPPa message returned by the service base station of the target terminal, and the NRPPa message carries the terminal positioning capability of the target terminal.

[0297] Based on the same inventive concept, the present application also provides a method for reporting terminal positioning capability, which is applied to a base station. Fig.10 As shown, the method may include the following steps:

[0298] Step S1001: If the base station receives a capability acquisition message sent by an access and mobility management function AMF entity or a positioning management function LMF entity.

[0299] Step S1002: The base station obtains the terminal positioning capability of the target terminal from the target terminal.

[0300] Step S1003, the base station reports the terminal positioning capability of the target terminal to the AMF entity or the LMF entity.

[0301] In an optional embodiment, the base station receives a capability acquisition message sent by an access and mobility management function AMF entity or a positioning management function LMF entity, including:

[0302] The base station receives an NG interface request message sent by the AMF entity, where the NG interface request message is used to instruct the base station to obtain a terminal positioning capability of the target terminal;

[0303] The base station receives a New Air Interface Positioning Additional Protocol NRPPa message sent by the LMF entity, where the NRPPa request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal.

[0304] In an optional embodiment, the base station reports the terminal positioning capability of the target terminal to the AMF entity or the LMF entity, including:

[0305] The base station reports the container containing the terminal positioning capability of the target terminal to the AMF entity through an NG interface message; or, the base station reports the container containing the terminal positioning capability of the target terminal to the LMF entity through an NRPPa message.

[0306] In an optional embodiment, the base station acquires the terminal positioning capability of the target terminal from the target terminal, including:

[0307] The base station sends a third capability request message to the target terminal to request to obtain the terminal positioning capability of the target terminal;

[0308] The base station receives the terminal positioning capability of the target terminal returned by the target terminal.

[0309] Based on the same technical concept, an embodiment of the present application also provides an access and mobility management function AMF entity, which can implement the process executed by the aforementioned implementation.

[0310] Fig.11 A schematic diagram of the structure of an access and mobility management function AMF entity provided in an embodiment of the present application. Fig.11 As shown, the access and mobility management function AMF entity 1100 includes: an acquisition unit 1101 and a transmission unit 1102.

[0311] The acquisition unit 1101 is used to acquire and save the terminal positioning capability of the terminal.

[0312] The transmission unit 1102 is used to transmit the terminal positioning capability of the target terminal to the positioning management function LMF entity after the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is saved, so that the LMF sets the positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal.

[0313] In an optional embodiment, the acquisition unit 1101 is specifically used to acquire and save the terminal positioning capability of the terminal from the terminal; or, to acquire and save the terminal positioning capability of the target terminal from the LMF entity; or, to acquire and save the terminal positioning capability of the target terminal from the service base station of the target terminal.

[0314] In an optional embodiment, the acquisition unit 1101 is also used to receive a non-access layer NAS message sent by the terminal before the positioning service for the target terminal arrives; the NAS message carries a container containing the terminal positioning capability; and the container containing the terminal positioning capability carried in the NAS message is saved in the terminal context of the terminal.

[0315] In an optional embodiment, the NAS message is an attachment request Attach Request message, which is sent after the terminal first accesses the network; or, the NAS message is a tracking area update request TAU ​​Request message, which is sent after the terminal positioning capability of the terminal is updated.

[0316] In an optional embodiment, the acquisition unit 1101 is also used to send a positioning request to the LMF entity if the terminal positioning capability of the target terminal is not saved after the positioning service for the target terminal arrives; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if the terminal positioning capability of the target terminal is not saved, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if a first capability request message sent by the LMF entity is received, the first capability request message indicates to obtain the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved, then a first capability request response message is sent to the LMF entity, the first capability request response message indicating that the terminal positioning capability of the target terminal is not saved in the AMF entity; and a container containing the terminal positioning capability of the target terminal sent by the LMF entity is received, and the container containing the terminal positioning capability of the target terminal is saved in the terminal context of the terminal.

[0317] In an optional embodiment, the acquisition unit 1101 is also used to send an NG interface request message to the service base station of the target terminal after the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved, and the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal; and receive the NG interface message returned by the base station, and save the container containing the terminal positioning capability of the target terminal carried in the NG interface message to the terminal context of the target terminal.

[0318] In an optional embodiment, the transmission unit 1102 is specifically used to send a positioning request for the target terminal to the LMF entity, and the positioning request carries a container containing the terminal positioning capability of the target terminal; or, after notifying the LMF entity to establish a positioning service session, send a second indication message to the LMF entity, and the second indication message carries a container containing the terminal positioning capability of the target terminal.

[0319] In an optional embodiment, the acquisition unit 1101 is also used to receive a first capability request message sent by the LMF entity; the first capability request message indicates obtaining the terminal positioning capability of the target terminal; and according to the first capability request message, sending a second capability request response message containing a container of the terminal positioning capability of the target terminal to the LMF entity.

[0320] It should be noted here that the above-mentioned AMF entity provided in the embodiment of the present application can implement all the method steps implemented by the AMF entity in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0321] Based on the same technical concept, an embodiment of the present application also provides a terminal, which can implement the process executed by the aforementioned implementation.

[0322] Fig.12 A schematic diagram of the structure of a terminal provided in an embodiment of the present application. Fig.12 As shown, the terminal 1200 includes: a reporting unit 1201.

[0323] The reporting unit 1201 is used to report the terminal positioning capability of the terminal to the access and mobility management function AMF entity; or, to report the terminal positioning capability of the terminal to the positioning management function LMF entity; or, to report the terminal positioning capability of the terminal to the serving base station of the terminal.

[0324] In an optional embodiment, the above-mentioned terminal may also include an adding unit 1202, which is used to add the terminal positioning capability to the container, and add the container containing the terminal positioning capability to the NAS message; the reporting unit 1201 is also used to report the NAS message of the container containing the terminal positioning capability to the AMF entity.

[0325] In an optional embodiment, the NAS message is an Attach Request message, or the NAS message is a Tracking Area Update Request TAU ​​Request message.

[0326] In an optional embodiment, the reporting unit 1201 is further used to report the terminal positioning capability to the LMF entity according to the LPP positioning capability request message if a Long Term Evolution Positioning Protocol LPP positioning capability request message sent by the LMF entity is received.

[0327] In an optional embodiment, the reporting unit 1201 is further configured to report the terminal positioning capability of the terminal to the base station according to the third capability request message if a third capability request message sent by the serving base station of the terminal is received.

[0328] It should be noted here that the above-mentioned terminal provided in the embodiment of the present application can implement all the method steps implemented by the terminal in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0329] Based on the same technical concept, an embodiment of the present application also provides a location management function LMF entity, which can implement the process executed by the aforementioned implementation.

[0330] Fig.13 This is a schematic diagram of the structure of a location management function LMF entity provided in an embodiment of the present application. Fig.13 As shown, the location management function LMF entity 1300 includes: an acquisition unit 1301 and a setting unit 1302.

[0331] The acquisition unit 1301 is used to obtain the terminal positioning capability of the target terminal from the access and mobility management function AMF entity; or, to obtain the terminal positioning capability of the target terminal from the target terminal and / or the serving base station of the target terminal, and to pass the acquired terminal positioning capability of the target terminal to the AMF entity.

[0332] The setting unit 1302 is configured to set a positioning method for the target terminal according to the terminal positioning capability.

[0333] In an optional embodiment, the acquisition unit 1301 is specifically used to receive a positioning request for the target terminal sent by the AMF entity after the positioning service for the target terminal arrives, and the positioning request carries a container containing the terminal positioning capabilities of the target terminal; or, after establishing a positioning service session, receive a second indication message sent by the AMF entity, and the second indication message carries a container containing the terminal positioning capabilities of the target terminal.

[0334] In an optional embodiment, the acquisition unit 1301 is also used to send a first capability request message to the AMF entity; the first capability request message indicates obtaining the terminal positioning capability of the target terminal; and receiving a second capability request response message sent by the AMF entity containing a container of the terminal positioning capability of the target terminal.

[0335] In an optional embodiment, the acquisition unit 1301 is also used to receive a positioning request sent by the AMF entity, the positioning request carrying indication information indicating that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, receive a first indication message sent by the AMF entity, the first indication message is sent by the AMF entity after notifying the establishment of a positioning service session, indicating that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, receive a first capability request response message sent by the AMF entity, the first capability request response message is a response message of the AMF entity to the first capability request message sent, the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity.

[0336] In an optional embodiment, the acquisition unit 1301 is also used to send a Long Term Evolution Positioning Protocol LPP request message to the target terminal, and receive the terminal positioning capability sent by the target terminal; or, send a New Air Interface Positioning Additional Protocol NRPPa request message to the service base station of the target terminal, and the NRPPa request message is used to instruct the service base station of the target terminal to obtain the terminal positioning capability of the target terminal; receive the NRPPa message returned by the service base station of the target terminal, and the NRPPa message carries the terminal positioning capability of the target terminal.

[0337] It should be noted here that the above-mentioned LMF entity provided in the embodiment of the present application can implement all the method steps implemented by the LMF entity in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0338] Based on the same technical concept, an embodiment of the present application also provides a base station, which can implement the process executed by the aforementioned implementation.

[0339] Fig.14 A schematic diagram of the structure of a base station provided in an embodiment of the present application. Fig.14 As shown, the base station 1400 includes: a receiving unit 1401 , an acquiring unit 1402 , and a reporting unit 1403 .

[0340] The receiving unit 1401 is used to receive a capability acquisition message sent by an access and mobility management function AMF entity or a positioning management function LMF entity.

[0341] The acquiring unit 1402 is configured to acquire the terminal positioning capability of the target terminal from the target terminal.

[0342] The reporting unit 1403 is used to report the terminal positioning capability of the target terminal to the AMF entity or the LMF entity.

[0343] In an optional embodiment, the receiving unit 1401 is specifically used to receive an NG interface request message sent by the AMF entity, wherein the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal; and to receive a new air interface positioning additional protocol NRPPa message sent by the LMF entity, wherein the NRPPa request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal.

[0344] In an optional embodiment, the reporting unit 1403 is specifically used to report the container containing the terminal positioning capability of the target terminal to the AMF entity through an NG interface message; or, to report the container containing the terminal positioning capability of the target terminal to the LMF entity through an NRPPa message.

[0345] In an optional embodiment, the acquisition unit 1402 is specifically configured to send a third capability request message to the target terminal to request acquisition of the terminal positioning capability of the target terminal; and receive the terminal positioning capability of the target terminal returned by the target terminal.

[0346] It should be noted here that the above-mentioned base station provided in the embodiment of the present application can implement all the method steps implemented by the base station in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0347] Based on the same technical concept, the embodiment of the present application also provides an access and mobility management function AMF entity, which can implement the access and mobility management function AMF entity in the aforementioned embodiment. Fig.11 The process being executed.

[0348] Fig.15 FIG. 1 shows a schematic diagram of the structure of the access and mobility management function AMF entity 1500 provided in an embodiment of the present application, that is, another schematic diagram of the structure of the access and mobility management function AMF entity 1100. Fig.15As shown, the access and mobility management function AMF entity 1500 includes a processor 1501, a memory 1502, and optionally, a transceiver 1503. The processor 1501 may also be a controller. The processor 1501 is configured to support the AMF in executing the functions involved in the aforementioned process. The memory 1502 is used to couple with the processor 1501, and stores the necessary program instructions and data for the AMF. The processor 1501 is connected to the memory 1502, and the memory 1502 is used to store instructions. The processor 1501 is used to read and execute the instructions stored in the memory 1502 to complete the steps of the AMF executing the corresponding functions in the above method.

[0349] In the embodiments of the present application, for the concepts, explanations, detailed descriptions and other steps related to the technical solutions provided in the embodiments of the present application involved in the access and mobility management function AMF entity 1100 and the access and mobility management function AMF entity 1500, please refer to the description of these contents in the aforementioned method or other embodiments, and will not be repeated here.

[0350] It should be noted that the processor involved in the above-mentioned embodiments of the present application can be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the content of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. Among them, the memory can be integrated in the processor or can be set separately from the processor.

[0351] It should be noted here that the above-mentioned AMF entity provided in the embodiment of the present application can implement all the method steps implemented by the AMF entity in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0352] Based on the same technical concept, the present application also provides a terminal, which can implement the above-mentioned embodiment. Fig.12 The process being executed.

[0353] Fig.16FIG. 1 shows a schematic diagram of the structure of the terminal 1600 provided in an embodiment of the present application, that is, another schematic diagram of the structure of the terminal 1200. Fig.16 As shown, the terminal 1600 includes a processor 1601, a memory 1602, and optionally, a transceiver 1603. The processor 1601 may also be a controller. The processor 1601 is configured to support the terminal to perform the functions involved in the aforementioned process. The memory 1602 is used to couple with the processor 1601, which stores the necessary program instructions and data for the terminal. The processor 1601 is connected to the memory 1602, the memory 1602 is used to store instructions, and the processor 1601 is used to read and execute the instructions stored in the memory 1602 to complete the steps of the terminal performing the corresponding functions in the above method.

[0354] In the embodiments of the present application, for the concepts, explanations, detailed descriptions and other steps related to the technical solutions provided in the embodiments of the present application by the terminal 1200 and the terminal 1600, please refer to the descriptions of these contents in the aforementioned methods or other embodiments, and will not be repeated here.

[0355] It should be noted that the processor involved in the above-mentioned embodiments of the present application can be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the content of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. Among them, the memory can be integrated in the processor or can be set separately from the processor.

[0356] It should be noted here that the above-mentioned terminal provided in the embodiment of the present application can implement all the method steps implemented by the terminal in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0357] Based on the same technical concept, the embodiment of the present application also provides a location management function LMF entity, which can implement the location management function LMF entity in the above embodiment. Fig.13 The process being executed.

[0358] Fig.17 FIG. 1 shows a schematic diagram of the structure of the location management function LMF entity 1700 provided in an embodiment of the present application, that is, another schematic diagram of the structure of the location management function LMF entity 1300. Fig.17 As shown, the location management function LMF entity 1700 includes a processor 1701, a memory 1702, and optionally, a transceiver 1703. The processor 1701 may also be a controller. The processor 1701 is configured to support the location management function LMF entity to perform the functions involved in the aforementioned process. The memory 1702 is used to couple with the processor 1701, and it stores the necessary program instructions and data for the location management function LMF entity. The processor 1701 is connected to the memory 1702, the memory 1702 is used to store instructions, and the processor 1701 is used to read and execute the instructions stored in the memory 1702 to complete the steps of the location management function LMF entity performing the corresponding functions in the above method.

[0359] In the embodiments of the present application, for the concepts, explanations, detailed descriptions and other steps related to the technical solutions provided in the embodiments of the present application and involved in the positioning management function LMF entity 1300 and the positioning management function LMF entity 1700, please refer to the descriptions of these contents in the aforementioned methods or other embodiments, and will not be repeated here.

[0360] It should be noted that the processor involved in the above-mentioned embodiments of the present application can be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the content of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. Among them, the memory can be integrated in the processor or can be set separately from the processor.

[0361] It should be noted here that the above-mentioned LMF entity provided in the embodiment of the present application can implement all the method steps implemented by the LMF entity in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0362] Based on the same technical concept, the present application also provides a base station, which can implement the above-mentioned embodiment. Fig.14 The process being executed.

[0363] Fig.18 FIG. 1 shows a schematic diagram of the structure of the base station 1800 provided in an embodiment of the present application, that is, another schematic diagram of the structure of the base station 1400. Fig.18 As shown, the base station 1800 includes a processor 1801, a memory 1802, and optionally, a transceiver 1803. The processor 1801 may also be a controller. The processor 1801 is configured to support the base station in performing the functions involved in the aforementioned process. The memory 1802 is used to couple with the processor 1801, and stores the necessary program instructions and data for the base station. The processor 1801 is connected to the memory 1802, the memory 1802 is used to store instructions, and the processor 1801 is used to read and execute the instructions stored in the memory 1802 to complete the steps of the base station performing the corresponding functions in the above method.

[0364] In the embodiments of the present application, for the concepts, explanations, detailed descriptions and other steps related to the technical solutions provided in the embodiments of the present application by base station 1400 and base station 1800, please refer to the descriptions of these contents in the aforementioned methods or other embodiments, and will not be repeated here.

[0365] It should be noted that the processor involved in the above-mentioned embodiments of the present application can be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the content of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. Among them, the memory can be integrated in the processor or can be set separately from the processor.

[0366] It should be noted here that the above-mentioned base station provided in the embodiment of the present application can implement all the method steps implemented by the base station in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0367] Based on the same technical concept, the embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions, which are used to enable a computer to execute Fig.11 The process executed in .

[0368] Based on the same technical concept, the embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions, which are used to enable a computer to execute Fig.12 The process executed in .

[0369] Based on the same technical concept, the embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions, which are used to enable a computer to execute Fig.13 The process executed in .

[0370] Based on the same technical concept, the embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium stores computer-executable instructions, which are used to enable a computer to execute Fig.14 The process executed in .

[0371] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0372] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0373] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0374] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0375] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for reporting terminal positioning capability, applied to an access and mobility management function AMF entity, characterized in that: The method comprises: Obtain and save the terminal positioning capability of the terminal; Based on the received positioning service request for the target terminal, after determining that the positioning service for the target terminal has arrived, if the AMF entity saves the terminal positioning capability of the target terminal, the terminal positioning capability of the target terminal is transmitted to the positioning management function LMF entity, so that the LMF sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; The acquiring and saving the terminal positioning capability of the terminal includes: Acquire and save the terminal positioning capability of the target terminal from the LMF entity; or, Acquire and save the terminal positioning capability of the target terminal from the serving base station of the target terminal; The acquiring and saving the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; Receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal into the terminal context of the terminal.

2. The method according to claim 1, characterized in that: The acquiring and storing the terminal positioning capability of the target terminal from the serving base station of the target terminal includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, an NG interface request message is sent to the serving base station of the target terminal, where the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal; An NG interface message returned by the base station is received, and the container containing the terminal positioning capability of the target terminal carried in the NG interface message is saved in the terminal context of the target terminal.

3. The method according to claim 1, characterized in that: Transmitting the terminal positioning capability of the target terminal to the LMF entity includes: Sending a positioning request for the target terminal to the LMF entity, wherein the positioning request carries a container including the terminal positioning capability of the target terminal; or, After notifying the LMF entity to establish a positioning service session, a second indication message is sent to the LMF entity, where the second indication message carries a container containing the terminal positioning capability of the target terminal.

4. The method according to claim 1, characterized in that Before transmitting the terminal positioning capability of the target terminal to the LMF entity, the method further includes: Receiving a first capability request message sent by the LMF entity; the first capability request message indicates obtaining a terminal positioning capability of the target terminal; Transmitting the terminal positioning capability of the target terminal to the LMF entity includes: According to the first capability request message, a second capability request response message including a container of the terminal positioning capability of the target terminal is sent to the LMF entity.

5. A method for reporting terminal positioning capability, applied to a positioning management function LMF entity, characterized in that: The method comprises: Acquire the terminal positioning capability of the target terminal from the access and mobility management function AMF entity, and set a positioning method for the target terminal according to the terminal positioning capability; the terminal positioning capability of the target terminal acquired is transmitted when the AMF entity determines that the positioning service for the target terminal has arrived based on the received positioning service request for the target terminal and the terminal positioning capability of the target terminal is saved; the terminal positioning capability of the target terminal saved in the AMF entity is acquired and saved from the LMF entity; acquiring and saving the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates to obtain the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal to the terminal context of the terminal; or, The terminal positioning capability of the target terminal is obtained from the target terminal and / or the service base station of the target terminal, and the terminal positioning capability of the target terminal is transmitted to the AMF entity, so that the AMF entity saves the terminal positioning capability, and after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, the terminal positioning capability of the target terminal is transmitted to the LMF entity, so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal.

6. The method according to claim 5, characterized in that The acquiring the terminal positioning capability of the target terminal from the AMF entity includes: After the positioning service for the target terminal arrives, receiving a positioning request for the target terminal sent by the AMF entity, wherein the positioning request carries a container including the terminal positioning capability of the target terminal; or After establishing the positioning service session, a second indication message sent by the AMF entity is received, and the second indication message carries a container containing the terminal positioning capability of the target terminal.

7. The method according to claim 5, characterized in that Before acquiring the terminal positioning capability of the target terminal from the AMF entity, the method further includes: Sending a first capability request message to the AMF entity; the first capability request message indicates obtaining the terminal positioning capability of the target terminal; Acquiring the terminal positioning capability of the target terminal from the AMF entity includes: Receive a second capability request response message sent by the AMF entity and containing a container of the terminal positioning capability of the target terminal.

8. The method according to claim 5, characterized in that Before acquiring the terminal positioning capability of the target terminal from the target terminal and / or the serving base station of the target terminal, the method further includes: receiving a positioning request sent by the AMF entity, wherein the positioning request carries indication information indicating that the terminal positioning capability of the target terminal is not stored in the AMF entity; or, receiving a first indication message sent by the AMF entity, where the first indication message is sent by the AMF entity after notifying the LMF entity to establish a positioning service session, indicating that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, A first capability request response message sent by the AMF entity is received, where the first capability request response message is a response message of the AMF entity to the first capability request message sent by the LMF entity, where the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity.

9. The method according to claim 5, characterized in that Acquiring the terminal positioning capability of the target terminal from the target terminal and / or a serving base station of the target terminal includes: Sending a Long Term Evolution Positioning Protocol (LPP) request message to the target terminal, and receiving a terminal positioning capability sent by the target terminal; or, Send a New Air Interface Positioning Additional Protocol NRPPa request message to the service base station of the target terminal, where the NRPPa request message is used to instruct the service base station of the target terminal to obtain the terminal positioning capability of the target terminal; receive an NRPPa message returned by the service base station of the target terminal, where the NRPPa message carries the terminal positioning capability of the target terminal.

10. A method for reporting terminal positioning capability, applied to a base station, characterized in that: The method comprises: Receive a capability acquisition message sent by an access and mobility management function AMF entity or a location management function LMF entity; Acquiring a terminal positioning capability of the target terminal from the target terminal; reporting the terminal positioning capability of the target terminal to the AMF entity so that the AMF entity saves the terminal positioning capability, and after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, transmitting the terminal positioning capability of the target terminal to the LMF entity so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; or The terminal positioning capability of the target terminal is reported to the LMF entity, so that the AMF entity obtains and saves the terminal positioning capability of the target terminal from the LMF entity, and after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, the terminal positioning capability of the target terminal is transmitted to the LMF entity, so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; wherein, obtaining and saving the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; Receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal into the terminal context of the terminal.

11. The method according to claim 10, characterized in that The receiving a capability acquisition message sent by an access and mobility management function AMF entity or a positioning management function LMF entity includes: receiving an NG interface request message sent by the AMF entity, where the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal; A new air interface positioning additional protocol NRPPa message sent by the LMF entity is received, where the NRPPa request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal.

12. The method according to claim 10, characterized in that Reporting the terminal positioning capability of the target terminal to the AMF entity or the LMF entity includes: The container containing the terminal positioning capability of the target terminal is reported to the AMF entity through an NG interface message; or, the container containing the terminal positioning capability of the target terminal is reported to the LMF entity through an NRPPa message.

13. The method according to claim 10, characterized in that Acquiring the terminal positioning capability of the target terminal from the target terminal includes: Sending a third capability request message to the target terminal to request obtaining the terminal positioning capability of the target terminal; The terminal positioning capability of the target terminal is received and returned by the target terminal.

14. An access and mobility management function AMF entity, characterized in that: include: Acquisition unit and transmission unit; The acquisition unit is used to acquire and save the terminal positioning capability of the terminal; The transmission unit is used for determining, based on the received positioning service request for the target terminal, that the positioning service for the target terminal has arrived, and if the terminal positioning capability of the target terminal is saved, transmitting the terminal positioning capability of the target terminal to the positioning management function LMF entity, so that the LMF sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; The acquisition unit is specifically used for: Acquire and save the terminal positioning capability of the target terminal from the LMF entity; or, Acquire and save the terminal positioning capability of the target terminal from the serving base station of the target terminal; The acquiring and saving the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; Receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal into the terminal context of the terminal.

15. A location management function LMF entity, characterized in that: include: GetUnit and SetUnit; The acquisition unit is used to acquire the terminal positioning capability of the target terminal from the access and mobility management function AMF entity; the positioning method is set for the target terminal according to the terminal positioning capability through the setting unit; the terminal positioning capability of the target terminal acquired is transmitted when the AMF entity determines that the positioning service for the target terminal has arrived based on the received positioning service request for the target terminal and the terminal positioning capability of the target terminal is stored; the terminal positioning capability of the target terminal stored in the AMF entity is acquired and stored from the LMF entity; acquiring and storing the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates to obtain the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal to the terminal context of the terminal; or, The acquisition unit is used to acquire the terminal positioning capability of the target terminal from the target terminal and / or the service base station of the target terminal, and transmit the acquired terminal positioning capability of the target terminal to the AMF entity, so that the AMF entity saves the terminal positioning capability, and after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, transmits the terminal positioning capability of the target terminal to the LMF entity, so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal.

16. A base station, characterized in that: include: Receiving unit, acquiring unit and reporting unit; The receiving unit is used to receive a capability acquisition message sent by an access and mobility management function AMF entity or a positioning management function LMF entity; The acquiring unit is used to acquire the terminal positioning capability of the target terminal from the target terminal; The reporting unit is used to report the terminal positioning capability of the target terminal to the AMF entity so that the AMF entity saves the terminal positioning capability and, after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, transmits the terminal positioning capability of the target terminal to the LMF entity so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; or The reporting unit is used to report the terminal positioning capability of the target terminal to the LMF entity, so that the AMF entity obtains and saves the terminal positioning capability of the target terminal from the LMF entity, and after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, transmits the terminal positioning capability of the target terminal to the LMF entity, so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; wherein, obtaining and saving the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; Receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal into the terminal context of the terminal.

17. An access and mobility management function AMF entity, characterized in that: include: Memory, transceiver, and processor; The memory is used to store computer instructions; The transceiver is used to send and receive data under the control of the processor; The processor is configured to read the computer program in the memory and execute the following steps: Obtain and save the terminal positioning capability of the terminal; Based on the received positioning service request for the target terminal, after determining that the positioning service for the target terminal has arrived, if the AMF entity saves the terminal positioning capability of the target terminal, the terminal positioning capability of the target terminal is transmitted to the positioning management function LMF entity, so that the LMF sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; The acquiring and saving the terminal positioning capability of the terminal includes: Acquire and save the terminal positioning capability of the target terminal from the LMF entity; or, Acquire and save the terminal positioning capability of the target terminal from the serving base station of the target terminal; The acquiring and saving the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; Receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal into the terminal context of the terminal.

18. The AMF entity according to claim 17, characterized in that: The processor is specifically used for: Sending a positioning request for the target terminal to the LMF entity, wherein the positioning request carries a container including the terminal positioning capability of the target terminal; or, After notifying the LMF entity to establish a positioning service session, a second indication message is sent to the LMF entity, where the second indication message carries a container containing the terminal positioning capability of the target terminal.

19. A location management function LMF entity, characterized in that: include: Memory, transceiver, and processor; The memory is used to store computer instructions; The transceiver is used to send and receive data under the control of the processor; The processor is configured to read the computer program in the memory and execute the following steps: Acquire the terminal positioning capability of the target terminal from the access and mobility management function AMF entity, and set a positioning method for the target terminal according to the terminal positioning capability; the terminal positioning capability of the target terminal obtained is transmitted when the AMF entity determines that the positioning service for the target terminal has arrived based on the received positioning service request for the target terminal and the terminal positioning capability of the target terminal is saved; the terminal positioning capability of the target terminal saved in the AMF entity is obtained and saved from the LMF entity; acquiring and saving the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; or, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates to obtain the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal to the terminal context of the terminal; or, The terminal positioning capability of the target terminal is obtained from the target terminal and / or the service base station of the target terminal, and the terminal positioning capability of the target terminal is transmitted to the AMF entity, so that the AMF entity saves the terminal positioning capability, and after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, the terminal positioning capability of the target terminal is transmitted to the LMF entity, so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal.

20. The LMF entity according to claim 19, characterized in that The processor is specifically used for: After the positioning service for the target terminal arrives, receiving a positioning request for the target terminal sent by the AMF entity, wherein the positioning request carries a container including the terminal positioning capability of the target terminal; or After establishing the positioning service session, a second indication message sent by the AMF entity is received, and the second indication message carries a container containing the terminal positioning capability of the target terminal.

21. A base station, characterized in that: include: Memory, transceiver, and processor; The memory is used to store computer instructions; The transceiver is used to send and receive data under the control of the processor; The processor is configured to read the computer program in the memory and execute the following steps: Receive a capability acquisition message sent by an access and mobility management function AMF entity or a location management function LMF entity; Acquiring a terminal positioning capability of the target terminal from the target terminal; reporting the terminal positioning capability of the target terminal to the AMF entity so that the AMF entity saves the terminal positioning capability, and after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, transmitting the terminal positioning capability of the target terminal to the LMF entity so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; or The terminal positioning capability of the target terminal is reported to the LMF entity, so that the AMF entity obtains and saves the terminal positioning capability of the target terminal from the LMF entity, and after receiving a positioning service request for the target terminal and determining that the positioning service for the target terminal has arrived, the terminal positioning capability of the target terminal is transmitted to the LMF entity, so that the LMF entity sets a positioning method for the target terminal according to the terminal positioning capability; the LMF entity is the LMF entity selected by the AMF entity for the target terminal; wherein, obtaining and saving the terminal positioning capability of the target terminal from the LMF entity includes: After the positioning service for the target terminal arrives, if the terminal positioning capability of the target terminal is not saved in the AMF entity, a positioning request is sent to the LMF entity; the positioning request carries indication information to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the terminal positioning capability of the target terminal is not saved in the AMF entity, after notifying the LMF entity to establish a positioning service session, a first indication message is sent to the LMF entity to indicate that the terminal positioning capability of the target terminal is not saved in the AMF entity; Alternatively, if the AMF entity receives a first capability request message sent by the LMF entity, the first capability request message indicates obtaining the terminal positioning capability of the target terminal, and the terminal positioning capability of the target terminal is not saved in the AMF entity, a first capability request response message is sent to the LMF entity, and the first capability request response message indicates that the terminal positioning capability of the target terminal is not saved in the AMF entity; Receive a container containing the terminal positioning capability of the target terminal sent by the LMF entity, and save the container containing the terminal positioning capability of the target terminal into the terminal context of the terminal.

22. The base station according to claim 21, characterized in that The processor is specifically used for: receiving an NG interface request message sent by the AMF entity, where the NG interface request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal; A new air interface positioning additional protocol NRPPa message sent by the LMF entity is received, where the NRPPa request message is used to instruct the base station to obtain the terminal positioning capability of the target terminal.

23. A computer-readable storage medium, characterized in that: The storage medium stores computer instructions, which, when executed by a processor, implement the method according to any one of claims 1 to 4, or the method according to any one of claims 5 to 9, or the method according to any one of claims 10 to 13.

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