Positioning confidence control method and device

Abstract

The present application provides a positioning confidence control method and apparatus, the method comprising: a positioning management device (103) receiving a first message sent by a terminal device (101), the first message comprising a first parameter set, the first parameter set comprising measurement information and / or error information related to position information of the terminal device (101); wherein the error information is related to the positioning confidence. The positioning management device (103) acquires a first positioning result according to the first parameter set and / or the positioning assistance data, the first positioning result comprising position information and / or confidence information of the terminal device (101); the confidence coefficient information comprises error information and / or alarm information, and the alarm information comprises a judgment result obtained by comparing the first positioning result with a preset judgment condition. According to the positioning confidence control method, a hierarchical alarm mechanism can be adopted for different system positioning errors, and the positioning confidence can be controlled in real time, so that the high reliability of the positioning system is ensured.

Description

[0001] This application is a divisional application. The application number of the original application is 202080099323.4, and the original application date is March 30, 2020. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of positioning technology, and in particular to a method and device for controlling positioning reliability. Background Art

[0003] At present, the 3rd Generation Partnership Project (3GPP) Technical Report (TR) 22.872 defines the preliminary concept of positioning confidence. That is, confidence is a measure of trust, which refers to the degree of trust in the correctness of the information provided by the navigation system; confidence also includes the ability to provide timely and effective warnings to terminal devices when the positioning system does not meet the predetermined operating conditions (for example, when the positioning error is large).

[0004] Ensuring the confidence of the positioning system is an important research point in R17. In the existing technology, there is only preliminary research on the reporting of positioning measurement errors. There is currently no feasible solution for evaluating the positioning confidence of the positioning system, which makes it impossible to guarantee the positioning confidence of the positioning system, and the positioning accuracy and reliability are poor. Summary of the invention

[0005] The present application provides a method and device for controlling positioning reliability, which adopts a graded alarm mechanism for positioning errors of different systems and can control the positioning reliability in real time to ensure the high reliability of the positioning system.

[0006] In a first aspect, a method for controlling location confidence is provided, comprising: a location management device receiving a first message sent by a terminal device, the first message comprising a first parameter set, the first parameter set comprising measurement information and / or error information related to location information of the terminal device; wherein the error information is related to the location confidence, and the error information comprises at least one or more of the following information: a protection level, an error source, an error value, a positioning error PE, a confidence level, a threat model, a probability of threat occurrence, and a failure mode;

[0007] The positioning management device obtains a first positioning result based on a first parameter set and / or positioning assistance data. The first positioning result includes location information and / or confidence information of the terminal device. The confidence information includes error information and / or alarm information. The alarm information includes a determination result after comparing the first positioning result with a pre-set determination condition. The determination result includes at least one or more of the following information: information on whether an alarm is required, an alarm level corresponding to the first positioning result, and error information.

[0008] At present, the 3GPP standard only discusses the measurement errors in the positioning system, and does not consider other error sources that affect the reliability of the positioning system. In addition, the existing positioning system lacks an alarm mechanism related to the system positioning error and cannot guarantee the integrity of the positioning system. This application designs a positioning integrity control method for the LMF-based positioning solution, which can make the positioning system not need to wait until the system is unavailable or a confidence crisis occurs to issue an alarm, but issue an early warning when a confidence crisis is about to occur, so as to ensure the positioning accuracy in real time and ensure the high reliability of the positioning system.

[0009] In one possible implementation, the determination result includes: if the first positioning result meets a preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the first positioning result, and error information; if the first positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or, if the first positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the first positioning result, and error information; if the first positioning result meets the preset determination condition, the determination result selectively includes no warning information.

[0010] The above technical solution enables the positioning system to clearly indicate error information in the corresponding alarm information, such as the error source, error value, etc., which helps the positioning system to perform corresponding positioning error correction based on the error information, and can effectively ensure the confidence of the positioning system and ensure the high reliability of the positioning system.

[0011] In a possible implementation, the method for controlling the positioning confidence also includes: the pre-set judgment condition includes one or more sub-judgment conditions, and the alarm level includes one or more sub-alarm levels; wherein one sub-alarm level corresponds to one or more sub-judgment conditions; or, one or more sub-alarm levels correspond to one sub-judgment condition.

[0012] The above technical solution enables the positioning system to adopt a graded alarm mechanism for different system positioning errors, which is beneficial for the positioning system to determine whether the positioning results are valid, and enables the positioning system to make corresponding adjustments according to the working conditions corresponding to different alarm levels. This operation can effectively ensure the confidence of the positioning system.

[0013] In a possible implementation manner, the method for controlling positioning reliability further includes: the positioning management device sending a first positioning result to the access and mobility management device.

[0014] According to the above technical solution, the positioning management device can send the first positioning result containing error information and / or alarm information to the access and mobility management device according to the different methods of initiating the positioning request, or the access and mobility management device can forward it to other devices or functions that initiate the positioning request.

[0015] In a possible implementation, the positioning management device performs positioning error correction according to the first positioning result, and obtains a second positioning result after the positioning error correction, where the second positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

[0016] According to the above technical solution, the positioning management device can perform positioning error correction on the first positioning result based on the error information reported by the terminal device, such as the error source, error value, etc., and obtain a second positioning result with the positioning error corrected, so as to ensure the positioning accuracy in real time and ensure the high reliability of the positioning system.

[0017] In a possible implementation manner, the positioning management device sends the second positioning result to the access and mobility management device.

[0018] According to the above technical solution, the positioning management device can send the second positioning result containing error information and / or alarm information to the access and mobility management device depending on the different ways of initiating the positioning request, or the access and mobility management device can forward it to other devices or functions that initiate the positioning request.

[0019] In a possible implementation, before the positioning management device receives the first message sent by the terminal device, the method for controlling the positioning confidence also includes: the positioning management device receives a positioning request sent by the access and mobility management device, and the positioning request includes first indication information related to the positioning confidence, and the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

[0020] The access and mobility management device can receive location service requests related to the terminal device from a third-party device or function such as a terminal device or a 5GC LCS entity, or the access and mobility management device itself can also initiate some positioning requests on behalf of a specific terminal device. According to the above scheme, the access and mobility management device can forward the positioning request (location service request) to the positioning management device to start the positioning process.

[0021] In a possible implementation, before the positioning management device receives the first message sent by the terminal device, the positioning reliability control method also includes: the positioning management device receives a second message sent by the next generation wireless access network device, and the second message contains positioning assistance data related to the location information of the terminal device.

[0022] According to the above solution, the positioning management device can obtain the auxiliary data necessary for positioning the terminal device, and then locate the terminal device according to the necessary auxiliary data.

[0023] In a second aspect, a method for controlling location confidence is provided, including: a terminal device acquires a second parameter set, the second parameter set including measurement information and / or error information related to location information of the terminal device; wherein the error information is related to the location confidence, and the error information includes at least one or more of the following information: a protection level, an error source, an error value, a positioning error PE, a confidence level, a threat model, a probability of threat occurrence, and a failure mode;

[0024] The terminal device obtains a third positioning result based on the second parameter set and / or positioning assistance data, and the third positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes error information and / or alarm information, and the alarm information includes a determination result after comparing the third positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the third positioning result, and error information.

[0025] At present, the 3GPP standard only discusses the measurement errors in the positioning system, and does not consider other error sources that affect the reliability of the positioning system. In addition, the existing positioning system lacks an alarm mechanism related to the system positioning error and cannot guarantee the integrity of the positioning system. This application designs a positioning integrity control method for the UE-based positioning solution, which can make the positioning system not need to wait until the system is unavailable or a confidence crisis occurs to issue an alarm, but issue an early warning when a confidence crisis is about to occur, so as to ensure the positioning accuracy in real time and ensure the high reliability of the positioning system.

[0026] In one possible implementation, the determination result includes: if the third positioning result meets a preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the third positioning result, and error information; if the third positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or, if the third positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the third positioning result, and error information; if the third positioning result meets the preset determination condition, the determination result selectively includes no warning information.

[0027] The above technical solution enables the positioning system to clearly indicate error information in the corresponding alarm information, such as the error source, error value, etc., which helps the positioning system to perform corresponding positioning error correction based on the error information, and can effectively ensure the confidence of the positioning system and ensure the high reliability of the positioning system.

[0028] In a possible implementation, the method for controlling the positioning confidence also includes: the pre-set judgment condition includes one or more sub-judgment conditions, and the alarm level includes one or more sub-alarm levels; wherein one sub-alarm level corresponds to one or more sub-judgment conditions; or, one or more sub-alarm levels correspond to one sub-judgment condition.

[0029] The above technical solution enables the positioning system to adopt a graded alarm mechanism for different positioning system errors, which is beneficial for the positioning system to determine whether the positioning results are valid, and enables the positioning system to make corresponding adjustments according to the working conditions corresponding to different alarm levels. This operation can effectively ensure the confidence of the positioning system.

[0030] In a possible implementation manner, the method for controlling positioning reliability further includes: the terminal device sending a third positioning result to the positioning management device.

[0031] According to the above technical solution, the terminal device can send the third positioning result containing error information and / or warning information to the positioning management device, which is beneficial for the positioning management device to perform subsequent positioning processing. Alternatively, the terminal device can also send the third positioning result containing error information and / or warning information to the positioning management device according to different positioning request initiation methods, and the positioning management device forwards it and finally sends it to other devices or functions that initiate positioning requests.

[0032] In a possible implementation, the method for controlling positioning confidence also includes: the terminal device performs positioning error correction according to the third positioning result, and obtains a fourth positioning result after the positioning error correction, and the fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

[0033] According to the above technical solution, the terminal device can perform positioning error correction on the third positioning result based on the obtained error information, such as the error source, the error value, etc., and obtain the fourth positioning result after the positioning error correction, so as to ensure the positioning accuracy in real time and ensure the high reliability of the positioning system.

[0034] In a possible implementation manner, the terminal device sends the fourth positioning result to the positioning management device.

[0035] According to the above technical solution, the terminal device can send the third positioning result containing error information and / or alarm information after positioning error correction to the positioning management device, which is beneficial for the positioning management device to perform subsequent positioning processing. Alternatively, the terminal device can also send the fourth positioning result after positioning error correction to the positioning management device according to the different ways of initiating the positioning request, and the positioning management device will forward it and finally send it to other devices or functions that initiate the positioning request.

[0036] In a possible implementation, the method for controlling the location confidence also includes: the terminal device sends a positioning request to the access and mobility management device, and the positioning request includes first indication information related to the location confidence, and the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

[0037] According to the above solution, the terminal device can forward the positioning request (or location service request) to the positioning management device through the access and mobility management device to start the positioning process.

[0038] In a possible implementation, before the terminal device obtains the second parameter set, the method for controlling the positioning reliability also includes: the terminal device receives a third message sent by the positioning management device, the third message comprising positioning assistance data related to the location information of the terminal device, and the positioning assistance data is received by the positioning management device from a next-generation wireless access network device.

[0039] According to the above solution, the terminal device can obtain the auxiliary data necessary for positioning the terminal device from the positioning management device, and then locate the terminal device according to the necessary auxiliary data.

[0040] In a possible implementation manner, the terminal device obtains the second parameter set including: the terminal device obtains the second parameter set through measurement, or from a next generation wireless access network device, or from a network device that participates in positioning and includes a positioning management component.

[0041] According to the above solution, the terminal device can obtain the second parameter set necessary for positioning the terminal device, which can be obtained by measuring the terminal device, measuring the network device involved in positioning and / or measuring the network device involved in positioning that includes a positioning management component.

[0042] In a third aspect, a positioning management device is provided for executing the method in the first aspect or any possible implementation of the first aspect. The positioning management device may be a positioning management device in the first aspect or any possible implementation of the first aspect, or a module applied to the positioning management device, such as a chip or a chip system. The positioning management device includes a module, unit, or means corresponding to the method executed by the positioning management device in the first aspect or any possible implementation of the first aspect, and the module, unit, or means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions executed by the positioning management device in the first aspect or any possible implementation of the first aspect.

[0043] The positioning management device includes: a transceiver unit, configured to receive a first message sent by a terminal device, the first message including a first parameter set, the first parameter set including measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode;

[0044] A processing unit is used to obtain a first positioning result based on a first parameter set and / or positioning assistance data, where the first positioning result includes location information and / or confidence information of a terminal device; the confidence information includes error information and / or alarm information, and the alarm information includes a determination result after comparing the first positioning result with a pre-set determination condition, where the determination result includes at least one or more of the following information: information on whether an alarm is required, an alarm level corresponding to the first positioning result, and error information.

[0045] In one possible implementation, the determination result includes: if the first positioning result meets a preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the first positioning result, and error information; if the first positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or, if the first positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the first positioning result, and error information; if the first positioning result meets the preset determination condition, the determination result selectively includes no warning information.

[0046] In a possible implementation, the preset determination condition includes one or more sub-determination conditions, and the alarm level includes one or more sub-alarm levels; wherein one sub-alarm level corresponds to one or more sub-determination conditions; or, one or more sub-alarm levels correspond to one sub-determination condition.

[0047] In a possible implementation manner, the transceiver unit is further configured to send the first positioning result to the access and mobility management device.

[0048] In a possible implementation, the processing unit is further used to: perform positioning error correction according to the first positioning result, and obtain a second positioning result after the positioning error correction, wherein the second positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

[0049] In a possible implementation manner, the transceiver unit is further configured to send the second positioning result to the access and mobility management device.

[0050] In one possible implementation, before receiving the first message sent by the terminal device, the transceiver unit is also used to: receive a positioning request sent by the access and mobility management device, the positioning request including first indication information related to the positioning confidence, and the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

[0051] In a possible implementation, before receiving the first message sent by the terminal device, the transceiver unit is further used to: receive a second message sent by the next generation wireless access network device, where the second message includes positioning assistance data related to the location information of the terminal device.

[0052] The beneficial effects of the third aspect and any possible implementation of the third aspect can refer to the corresponding beneficial effects of the first aspect and any possible implementation of the first aspect, and will not be repeated here.

[0053] In a fourth aspect, a terminal device is provided for executing the method in the second aspect or any possible implementation of the second aspect. The terminal device may be a terminal device in the second aspect or any possible implementation of the second aspect, or a module applied to the terminal device, such as a chip or a chip system. The terminal device includes a module, unit, or means corresponding to the method executed by the terminal device in the second aspect or any possible implementation of the second aspect, and the module, unit, or means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions executed by the terminal device in the second aspect or any possible implementation of the second aspect.

[0054] The provided terminal device includes: a processing unit, used to obtain a second parameter set, the second parameter set including measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode;

[0055] The processing unit is also used to: obtain a third positioning result based on the second parameter set and / or positioning assistance data, the third positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes error information and / or alarm information, the alarm information includes a determination result after comparing the third positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the third positioning result, and error information.

[0056] In one possible implementation, the determination result includes: if the third positioning result meets a pre-set determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the third positioning result, and error information; if the third positioning result does not meet the pre-set determination condition, the determination result selectively includes no warning information; or, if the third positioning result does not meet the pre-set determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the third positioning result, and error information; if the third positioning result meets the pre-set determination condition, the determination result selectively includes no warning information.

[0057] In a possible implementation, the preset determination condition includes one or more sub-determination conditions, and the alarm level includes one or more sub-alarm levels; wherein one sub-alarm level corresponds to one or more sub-determination conditions; or, one or more sub-alarm levels correspond to one sub-determination condition.

[0058] In a possible implementation manner, the terminal device further includes a transceiver unit, and the transceiver unit is used to send the third positioning result to the positioning management device.

[0059] In a possible implementation, the processing unit is further used to perform positioning error correction based on the third positioning result, and obtain a fourth positioning result after the positioning error correction, where the fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

[0060] In a possible implementation manner, the transceiver unit is further configured to send a fourth positioning result to the positioning management device.

[0061] In one possible implementation, before obtaining the second parameter set, the transceiver unit is also used to: send a positioning request to the access and mobility management device, the positioning request including first indication information related to the positioning confidence, the first indication information being used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

[0062] In a possible implementation, before obtaining the second parameter set, the transceiver unit is also used to: receive a third message sent by the positioning management device, the third message containing positioning assistance data related to the location information of the terminal device, and the positioning assistance data is received by the positioning management device from the next generation wireless access network device.

[0063] In a possible implementation manner, obtaining the second parameter set includes: the terminal device obtains the second parameter set through measurement, or from a next generation wireless access network device, or from a network device that participates in positioning and includes a positioning management component.

[0064] The beneficial effects of the fourth aspect and any possible implementation of the fourth aspect can refer to the corresponding beneficial effects of the second aspect and any possible implementation of the second aspect, and will not be repeated here.

[0065] In a fifth aspect, a positioning management device is provided, comprising: a processor, configured to execute a program stored in a memory, wherein when the program is executed, the positioning management device executes a method in the first aspect or any possible implementation of the first aspect.

[0066] In a possible implementation manner, the memory is located outside the positioning management device.

[0067] In a sixth aspect, a terminal device is provided, comprising: a processor, configured to execute a program stored in a memory, wherein when the program is executed, the terminal device executes a method as in the second aspect or any possible implementation of the second aspect.

[0068] In a possible implementation manner, the memory is located outside the terminal device.

[0069] In a seventh aspect, a positioning management device is provided, comprising: an input / output interface, configured to receive a first message sent by a terminal device, the first message comprising a first parameter set, the first parameter set comprising measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information comprises at least one or more of the following information: a protection level, an error source, an error value, a positioning error PE, a confidence level, a threat model, a threat occurrence probability, and a failure mode;

[0070] A logic circuit is used to obtain a first positioning result based on a first parameter set and / or positioning assistance data, wherein the first positioning result includes location information and / or confidence information of a terminal device; the confidence information includes error information and / or alarm information, and the alarm information includes a determination result after comparing the first positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, an alarm level corresponding to the first positioning result, and error information.

[0071] In an eighth aspect, a terminal device is provided, comprising: a logic circuit, configured to obtain a second parameter set, the second parameter set comprising measurement information and / or error information related to location information of the terminal device; wherein the error information is related to positioning confidence, and the error information comprises at least one or more of the following information: a protection level, an error source, an error value, a positioning error PE, a confidence level, a threat model, a threat occurrence probability, and a failure mode;

[0072] The logic circuit is also used to: obtain a third positioning result according to the second parameter set and / or the positioning assistance data, the third positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes error information and / or alarm information, the alarm information includes a determination result after comparing the third positioning result with a preset determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, an alarm level corresponding to the third positioning result, and error information;

[0073] The terminal device also includes an input / output interface for performing related input / output functions.

[0074] In a ninth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a computer, it is used to implement the functions performed by the positioning management device in the first aspect or any possible implementation method of the first aspect.

[0075] In a tenth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a computer, it is used to implement the functions performed by the terminal device in the second aspect or any possible implementation method of the second aspect.

[0076] In an eleventh aspect, a computer program product is provided, which includes a computer program, and when the computer program product is run on a computer, it is used to implement the functions performed by the positioning management device in the first aspect or any possible implementation of the first aspect.

[0077] In a twelfth aspect, a computer program product is provided, which includes a computer program. When the computer program product runs on a computer, it is used to implement the functions performed by the terminal device in the second aspect or any possible implementation method of the second aspect.

[0078] In the thirteenth aspect, a chip system is provided, comprising: at least one processor and an interface, wherein the at least one processor is coupled to a memory through the interface, and when the at least one processor executes a computer program or computer execution instruction in the memory, it is used to implement the functions performed by the positioning management device in the first aspect or any possible implementation method of the first aspect.

[0079] In the fourteenth aspect, a chip system is provided, comprising: at least one processor and an interface, wherein the at least one processor is coupled to a memory through the interface, and when the at least one processor executes a computer program or computer execution instruction in the memory, it is used to implement the functions performed by the terminal device in the second aspect or any possible implementation method of the second aspect.

[0080] The beneficial effects of the device embodiments of the fifth to fourteenth aspects mentioned above can be referred to the beneficial effects of the corresponding methods in the first aspect and any possible implementation of the first aspect, or the second aspect and any possible implementation of the second aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 One of the schematic diagrams of the positioning system architecture provided for this application;

[0082] Figure 2 The second schematic diagram of the positioning system architecture provided for this application;

[0083] Figure 3 The third schematic diagram of the positioning system architecture provided for this application;

[0084] Figure 4 The fourth schematic diagram of the positioning system architecture provided for this application;

[0085] Figure 5 Stanford diagram for the civil aviation system;

[0086] Figure 6 The working status related to confidence in the positioning system provided by this application;

[0087] Figure 7 A schematic diagram of a hierarchical alarm mechanism provided in an embodiment of the present application;

[0088] Figure 8 A flowchart of a method 800 for controlling positioning reliability provided in an embodiment of the present application;

[0089] Fig. 9 A flowchart of another method 900 for controlling positioning reliability provided in an embodiment of the present application;

[0090] Fig.10 A schematic block diagram of a positioning management device 1000 provided in an embodiment of the present application;

[0091] Fig.11 A schematic block diagram of a positioning management device 1100 provided in an embodiment of the present application;

[0092] Fig.12 A schematic block diagram of a terminal device 1200 provided in an embodiment of the present application;

[0093] Fig.13 A schematic block diagram of a terminal device 1300 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0094] The technical solution in this application will be described in detail below with reference to the accompanying drawings.

[0095] Figure 1A possible positioning system architecture applicable to an embodiment of the present application is shown, and the positioning system may include a terminal device 101, a network device 102, and a positioning management device 103. The positioning management device 103 is used to perform positioning calculations on the terminal device 101 based on the measurement results of other network elements (such as the terminal device 101 or the network device 102), or the terminal device 101 may also perform positioning calculations on itself based on the measurement results of itself or other network elements (such as the network device 102). The positioning system may also include a measurement network element (or position measurement network element) 104. The measurement network element may also be called a measurement node. The positioning management device 103 and the measurement network element 104 are connected via an SLM interface or an NG interface. When the measurement network element 104 is a network device, the positioning management device 103 and the measurement network element 104 are connected via an NG interface. The interface between the positioning management device 103 and the measurement network element 104 may also be an Xn interface. The network device 102 may be a service base station of the terminal device 101. The network device 102 provides access services for the terminal device 101. After the terminal device 101 accesses the network device 102, it may communicate with the network side through the network device 102. The measurement network element 104 may be a network device, such as a next generation base station (next generation nodeB, gNB) or a location measurement unit (location measurement unit, LMU) in a fifth generation (5th generation, 5G) communication system, etc., for measuring positioning information, or the terminal device 101. The positioning information may be obtained by measuring a reference signal sent by the terminal device or by the terminal device measuring a reference signal sent by the network device. The network device or LMU may measure the reference signal sent by the terminal device 101 to obtain the measurement result required for positioning the terminal device. The terminal device may also measure the reference signal sent by the network device 102 to obtain the measurement result required for positioning the terminal device. The following is an example in which the measurement network element 104 is a network device (such as a service base station or a neighboring base station), and the positioning management device 103 and the measurement network element 104 are connected through an NG interface.

[0096] In a possible implementation, the terminal device 101 communicates with the network device 102 via a cellular link (Uu link), and the network device 102 communicates with the positioning management device 103 via an NG-C interface.

[0097] Optional, in Figure 1 Based on the positioning system architecture shown in Figure 2As shown, the positioning system used in the present application may also include an access and mobility management function (AMF) 105. The access and mobility management function 105 is a control plane network element provided by the operator, which is responsible for the access control and mobility management of the terminal device 101 accessing the operator network. The network device 102 communicates with the access and mobility management device 105 through the NG-C interface, and the access and mobility management function 105 communicates with the positioning management device 103 through the NLs interface. The positioning management device 103 and the network device 102 can interact through the access and mobility management function 105.

[0098] Optionally, the location management device involved in the present application may be a location management function (LMF) or a location management component (LMC), or may be a local location management function (LLMF) located in a network device. The following embodiments are all introduced by taking the location management device as the location management function LMF as an example, and the present application does not limit this.

[0099] The method for controlling the positioning confidence provided in the present application can be applied to various communication systems, such as long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, fifth generation (5G) communication system, such as new radio (NR) system, or various future communication systems, such as sixth generation (6G) communication system, public land mobile network (PLMN), device-to-device (D2D) communication system, machine-to-machine (M2M) communication system, Internet of Things (IoT) communication system or other communication systems.

[0100] Taking the 5G communication system as an example, Figure 1 or Figure 2The network element or entity corresponding to the network device in the 5G communication system may be a next-generation radio access network (NG-RAN) device in the 5G communication system. Optionally, in the present application, “next-generation radio access network device” and “network device” may be considered to be equivalent, and the present application does not make any specific limitation on this.

[0101] For example, Figure 3 This is an architecture diagram of another positioning system used in an embodiment of the present application. The positioning system is mainly based on 5G core network (5G core, 5GC), LMF, next-generation wireless access network and terminal device assisted positioning. Figure 3 As shown, in the positioning system, the terminal device is connected to the next generation radio access network NG-RAN through the LTE-Uu and / or NR-Uu interface via the next generation evolved NodeB (ng-eNB) and the next generation node B (gNB); the next generation radio access network NG-RAN is connected to the 5G core network (5G core, 5GC) through the NG-C interface via the access and mobility management function AMF. The next generation radio access network NG-RAN includes one or more next generation LTE base stations (Next-generation eNodeB, ng-eNB) ( Figure 3 Taking an ng-eNB as an example for illustration); NG-RAN may also include one or more next generation base stations (next generation nodeB, gNB) ( Figure 3 Take a gNB as an example for illustration); NG-RAN can also include one or more ng-eNBs and one or more gNBs. ng-eNB is an LTE base station accessing the 5G core network, and gNB is a 5G base station accessing the 5G core network. The 5G core network includes an access and mobility management function AMF and a positioning management function LMF. Among them, AMF is used to implement access control and mobility management, and LMF is used to implement functions such as positioning or positioning assistance. AMF and LMF are connected through the NLs interface. In the positioning architecture based on the 5G core network, the functions of each functional entity are mainly as follows:

[0102] (1)LMF is responsible for supporting different types of location services for terminal devices, including positioning of terminal devices and delivery of auxiliary data to terminal devices. Its control plane and user plane are the enhanced serving mobile location centre (E-SMLC) and secure user plane location (SULP) location platform (SLP). LMF may interact with ng-eNB / gNB and terminal devices as follows:

[0103] a. Information is exchanged with ng-eNB / gNB through NR positioning protocol annex (NRPPa) messages, such as obtaining positioning reference signal (PRS) configuration information, channel sounding reference signal (SRS) configuration information, cell timing, cell location information, etc.

[0104] b. The terminal device capability information, auxiliary information, measurement information, etc. are transmitted to the terminal device through the LTE positioning protocol (LPP) message.

[0105] (2) AMF can receive location service requests related to terminal devices from third-party devices or functions such as the 5G core network (5G core network, 5GC) location services (LCS) entity, or AMF itself can start some location services on behalf of specific terminal devices and forward location service requests to LMF. After obtaining the location information returned by the terminal device, AMF returns the relevant location information to third-party devices or functions such as the 5GC LCS entity.

[0106] (3) Terminal devices can measure downlink signals from NG-RAN equipment and other sources to support positioning.

[0107] (4) The gNB / ng-eNB can provide measurement information for the target terminal device and communicate this information to the LMF.

[0108] For example, Figure 4 2 is an architecture diagram of another positioning system applied to an embodiment of the present application. Figure 4 and Figure 3 The difference between the positioning system architecture is that Figure 3The device or component (such as LMF) that performs the positioning management function is deployed in the core network. Figure 4 The device or component (such as LMC network element) that performs the positioning management function can be deployed in the NG-RAN equipment. Figure 4 As shown in the figure, the gNB includes the LMC network element. The LMC network element is a partial functional component of the LMF and can be integrated in the gNB of the NG-RAN device.

[0109] It should be understood that the above Figures 1 to 4 The devices or functional nodes in the positioning system shown are only exemplary descriptions and do not constitute a limitation to the present application. In fact, Figures 1 to 4 The positioning system may also include other network elements, devices or functional nodes that have an interactive relationship with the devices or functional nodes illustrated in the figure, which are not specifically limited here.

[0110] Some nouns or terms used in this application are explained below, and these nouns or terms will also be considered as part of the invention content.

[0111] 1. Terminal equipment

[0112] Terminal equipment can be referred to as terminal for short, which is a device with wireless transceiver function. Terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.). Terminal equipment can be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, and can also include user equipment (UE), etc. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a fifth generation (5G) communication system, or a terminal device of a future evolving 6G communication system, etc. The terminal device may also sometimes be referred to as a terminal, an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE terminal device, a terminal device, a wireless communication device, a UE agent or a UE device, etc. The terminal device may also be fixed or mobile. This application is not limited to this.

[0113] In the present application, the device for realizing the function of the terminal device may be a terminal device; or it may be a device capable of supporting the terminal device to realize the function, such as a chip system, which may be installed in the terminal device. In the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices. In the technical solution provided in the present application, the device for realizing the function of the terminal device is a terminal device, and the terminal device is a UE as an example to describe the technical solution provided in the present application.

[0114] The terminal device may also include a device that provides voice and / or data connectivity to the user, for example, a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal device can communicate with the core network via a radio access network (RAN) and exchange voice and / or data with the RAN. The terminal device may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, V2X terminal equipment, machine-to-machine / machine-type communications (M2M / MTC) terminal equipment, Internet of Things (IoT) terminal equipment, subscriber unit, subscriber station, mobile station, remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, or user equipment, etc. For example, it may include a mobile phone (or "cellular" phone), a computer with a mobile terminal device, a portable, pocket-sized, handheld, or computer-built-in mobile device, etc. For example, personal communication service (PCS) phones and other devices. It also includes restricted devices, such as devices with low power consumption, or devices with limited storage capacity, or devices with limited computing power, etc. For example, it includes information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning systems (GPS), laser scanners, or terminal devices in the newly evolved public land mobile communication network (PLMN), etc., which are not limited in the embodiments of the present application.

[0115] Exemplarily, the terminal device may include: a radio resource control (RRC) signaling interaction module, a media access control (MAC) signaling interaction module, and a physical (PHY) signaling interaction module, etc. Among them, the RRC signaling interaction module may be: a module used by the network device and the terminal device to send and receive RRC signaling. The MAC signaling interaction module may be: a module used by the network device and the terminal device to send and receive MAC control element (CE) signaling. PHY signaling and data may be: a module used by the network device and the terminal device to send and receive uplink control signaling or downlink control signaling, uplink and downlink data, or downlink data.

[0116] 2. Network equipment

[0117] The network device may be a base station, and the network device may also be called a radio access network (RAN) device, which is a device that provides wireless communication functions for terminal devices. Network devices include, for example, but are not limited to: next-generation base stations (generation nodeB, gNB), evolved node B (evolved node B, eNB), baseband units (baseband units, BBU), transmitting and receiving points (transmitting and receiving points, TRP), transmitting points (transmitting points, TP), mobile switching centers, etc. The network device may also be a wireless controller, a centralized unit (centralized unit, CU), and / or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network, or a network device in a future evolved PLMN network, etc. The terminal device can communicate with multiple network devices of different communication systems. For example, the terminal device can communicate with a network device supporting a long-term evolution (LTE) system, a network device supporting 5G, or a network device in a dual-connection architecture of a network device supporting LTE and a network device supporting 5G. This application is not limited to this.

[0118] In the embodiments of the present application, the device for implementing the network device function may be a network device; or it may be a device capable of supporting the network device to implement the function, such as a chip system, which may be installed in the network device. In the technical solution provided by the present application, the device for implementing the network device function is a network device, and the network device is a base station as an example to describe the technical solution provided by the present application.

[0119] Network equipment, for example, including access network (AN) equipment, such as a base station (e.g., access point), can refer to equipment in the access network that communicates with a wireless terminal device over the air interface through one or more cells. The base station can be used to convert received air frames to and from Internet Protocol (IP) packets, acting as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. A road side unit (RSU) can be a fixed infrastructure entity that supports vehicle to X (V2X) wireless communication technology applications and can exchange messages with other entities that support V2X applications. The network equipment can also coordinate the attribute management of the air interface. For example, the network device may include an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in an LTE system or an advanced long term evolution (LTE-A) system, or may also include a next generation node B (next generation node B, gNB) in a fifth generation mobile communication technology (the 5th generation, 5G) new radio (new radio, NR) system, or may also include a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) in a cloud access network (cloud radio access network, Cloud RAN) system, and the present application is not limited to this.

[0120] Exemplarily, the network device may also include: an RRC signaling interaction module, a MAC signaling interaction module, and a PHY signaling interaction module, etc. In some deployments, the network device may include a centralized unit (CU) and a distributed unit (DU). The network device may also include an active antenna unit (AAU). Among them, the CU implements some functions of the network device, and the DU implements some functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, therefore, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or, sent by the DU+AAU. It is understandable that the network device can be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into a network device in the access network (radio access network, RAN), and the CU can also be divided into a network device in the core network (core network, CN), and this application does not limit this.

[0121] 3. Positioning management equipment

[0122] In summary, the positioning management device can locate the terminal device based on the positioning request of the AMF (positioning can also be called positioning measurement, and the embodiments of the present application do not distinguish between them). When locating the terminal device, the positioning management device can determine the positioning method used for the terminal device, as well as the network device for locating the terminal device. Optionally, the positioning management device in the embodiments of the present application may be a positioning management function (LMF) or a positioning management component (LMC) network element, or may be a local location management function (LLMF) located in a network device. The present application only uses LMF as an example of a positioning management device to introduce the positioning method provided in the present application. Positioning management devices with similar functions to LMF in other or new generation communication systems are also included in the protection scope of the present application, and the present application does not limit this.

[0123] Exemplarily, LMF is responsible for supporting different types of location services for target terminal devices, including positioning of terminal devices and delivering auxiliary data to terminal devices. Its control plane and user plane are enhanced serving mobile location center (E-SMLC) and secure user plane location (SLP) location platform (SUPL location platform, SLP). LMF may interact with ng-eNB / gNB and terminal devices as follows:

[0124] a. Information is exchanged with ng-eNB / gNB through NR positioning protocol annex (NRPPa) messages, such as obtaining positioning reference signal (PRS), channel sounding reference signal (SRS) configuration information, cell timing, cell location information, etc.

[0125] b. The terminal device capability information, auxiliary information, measurement information, etc. are transmitted to the terminal device through the LTE positioning protocol (LPP) message.

[0126] 4. Positioning request type

[0127] Depending on the initiator of the location request (or positioning request), there are currently the following types of positioning requests:

[0128] (1) Mobile Originated Location Request (MO-LR scenario): A location request initiated by a terminal device to request location-related information from the serving public land mobile network (PLMN).

[0129] (2) Mobile Terminated Location Request (MT-LR scenario): A location service (LCS) client or an application function inside or outside the serving public land mobile network (PLMN) initiates a location request to request location-related information of the terminal device from the serving PLMN.

[0130] (3) Network Induced Location Request (NI-LR scenario): A location request initiated by the access and mobility management function (AMF) to obtain the location information of the terminal device for certain regulatory services (e.g., emergency calls from the terminal device).

[0131] 5. Positioning method types

[0132] According to the different location solutions of the terminal equipment, the positioning methods are mainly divided into the following categories:

[0133] (1) UE-based positioning method: In the presence of auxiliary data, the terminal device is responsible for calculating its position, and the terminal device can also provide measurement results about the downlink signal.

[0134] (2) UE-assisted / LMF-based positioning method: The terminal device only provides the measurement results of the reference signal and does not perform position calculation. In the case of auxiliary data, the location management function (LMF) is responsible for the position calculation of the terminal device.

[0135] (3) Standalone positioning method: The terminal device performs downlink signal measurement and position calculation without network assistance data.

[0136] 6. Integrity

[0137] According to the 3GPP TR 22.872 protocol, confidence is a measure of trust, which refers to the degree of trust in the correctness of the information provided by the navigation system. Confidence also includes the ability to provide timely and effective warnings to terminal devices when the positioning system does not meet the expected operating conditions.

[0138] 7. Confidence-related key performance indicators (KPIs)

[0139] At present, there are some relevant indicators for evaluating the confidence of civil aviation positioning systems, which are also applicable to positioning systems:

[0140] (1) Alert limit (AL): The horizontal / vertical alarm limit is the maximum allowable horizontal / vertical position error, exceeding which indicates that the system is not suitable for the intended application. The value of the alarm limit is usually pre-set and related to the specific positioning service.

[0141] (2) Time to alert (TTA): The maximum allowed time from when the navigation system exceeds the allowable error range to when the device issues an alarm. The value of the time to alert is usually pre-set and related to the specific positioning service.

[0142] (3) Integrity risk (IR): Integrity risk refers to the probability that the positioning error exceeds the alarm limit, that is, the probability that the system's confidence is at risk. The value of the confidence risk is usually pre-set and related to the specific positioning service.

[0143] (4) Protection level (PL): The horizontal / vertical protection level refers to the statistical upper bound of the positioning error in the horizontal / vertical direction. The background of this indicator is that in actual operation, since the true position of the aircraft is unknown, the true positioning error is also unknown, so a new parameter is needed to measure the possibility of the positioning error exceeding the alarm limit. For example, if the distribution of the positioning error can be obtained through measurement, this indicator can be obtained through Prob(PE <PL)=ε PL Calculated, where ε PL It is a pre-set threshold and is also related to the specific positioning service.

[0144] (5) Error bounding (EB): It is an upper bound of the positioning error, used to ensure the accuracy of positioning.

[0145] 8. Threat Model

[0146] Threat Model:

[0147] (1) Anticipated events that the system must protect users from;

[0148] (2) Under what conditions it must provide a reliable safety confidence floor.

[0149] Threat Model Requirements:

[0150] (1) Each threat model must describe the specific nature, scale, and likelihood (i.e., threat occurrence probability) of the threats.

[0151] (2) The threat model must be comprehensive and capable of describing all reasonable conditions.

[0152] (3) The system can only be considered secure if it is proven that each threat has been adequately addressed.

[0153] Failure Mode:

[0154] The specific ways or means by which the component, function, device, subsystem, or system under investigation fails.

[0155] IX. Judging the System's Working State Based on Confidence

[0156] Currently, in the civil aviation system, the working state of the system can be judged according to the Stanford diagram ( Figure 5 as shown). As Figure 5 shown, the working state of the system can be determined by judging the magnitude relationship among the positioning error PE, the alert limit AL, the protection level PL, and the positioning error PE. It includes:

[0157] (1) When PE < AL < PL, the working state of the system is in the "system unavailable" state;

[0158] (2) When AL < PE < PL, the working state of the system is in the "system unavailable" state;

[0159] (3) When AL < PL < PE, the working state of the system is in the "system unavailable & misleading information" state;

[0160] (4) When PE < PL < AL, the working state of the system is in the "normal operation (or nominal operation)" state;

[0161] (5) When PL < PE < AL, the operating state of the system is the "misleading operations" state;

[0162] (6) When PL < AL < PE, the operating state of the system is the "hazardously operations" state;

[0163] This application applies Figure 5 the six confidence-related operating states described in Figure 6 to the positioning system for positioning the terminal device, and four simplified operating states can be obtained, as

[0164] (1) When PL > AL, that is, when the "protection level PL" of the terminal device exceeds the "alert limit AL", the operating state of the positioning system is the "system unavailable" state;

[0165] (2) When PE < PL < AL (at estimated position 1 or 2), that is, when the "position error (PE)" of the terminal device does not exceed the error boundary corresponding to the "protection level PL", and the "protection level PL" does not exceed the "alert limit AL", the operating state of the positioning system is the "nominal operations" state;

[0166] (3) When PL < PE < AL (at estimated position 3), that is, when the "position error PE" of the terminal device exceeds the error boundary corresponding to the "protection level PL", but does not exceed the "alert limit AL", the operating state of the positioning system is the "misleading operations" state;

[0167] (4) When PL < AL < PE (at estimated position 4), that is, when the "protection level PL" of the terminal device does not exceed the "alert limit AL", and the "position error PE" exceeds the "alert limit AL", the operating state of the positioning system is the "hazardously operations" state.

[0168] It should be noted that the "position error (PE)" involved in this application is a professional term, specifically referring to the positioning error PE parameter related to the positioning confidence. In order to distinguish it from the positioning error of the positioning system in the general sense, this application usually describes the professional term positioning error PE as "position error PE", and describes the positioning error of the positioning system as "system positioning error". It should be understood that "system positioning error" and "the positioning error of the positioning system" have the same meaning in this application.

[0169] Currently, the LTE positioning protocol (TS 36.355) supports reporting measurement quality in the ProvideLocationInformation information element (IE), but only discusses measurement errors, without considering errors caused by other error sources in the positioning process; and, for existing system positioning errors, the current standard lacks an alarm mechanism related to different system positioning errors, and cannot guarantee the integrity of the positioning system.

[0170] In view of the current situation that the current positioning system lacks relevant mechanisms and implementation methods to ensure system confidence, according to the definition of confidence, this application provides an evaluation mechanism for positioning confidence and designs an alarm method when a confidence crisis occurs.

[0171] The present application provides a method for controlling the confidence of a positioning system, which can indicate the alarm level and error source corresponding to the system positioning error in a corresponding message when the system positioning error is large, so as to ensure the positioning accuracy in real time and ensure the high reliability of the positioning system.

[0172] Before introducing the positioning confidence control method provided by the present application, a hierarchical alarm mechanism provided by the present application when a confidence crisis occurs is briefly introduced. The main idea of ​​the hierarchical alarm mechanism is that there is no need to wait until the positioning system is completely unavailable (for example, when the protection level (PL) in the confidence-related indicator exceeds the alarm limit AL) to issue an alarm. When the positioning system is about to face a confidence crisis (for example, the protection level PL is close to the alarm limit AL), an early warning is issued, thereby effectively ensuring the confidence of the positioning system.

[0173] For example, based on Figure 6 , taking the degree of proximity between the protection level PL and the alarm limit AL in the confidence-related indicators as an example, Figure 6 The 4 working states in are simplified into the following 2 working states:

[0174] (1) PL>AL, that is, when the "protection level PL" of the terminal equipment exceeds the "alarm limit AL", the working state of the positioning system is "system unavailable";

[0175] (2) When PL < AL, that is, when the "protection level PL" of the terminal device does not exceed the "alert limit AL", the operating state of the positioning system is in the "nominal operations" state, or the "misleading operations" state, or the "hazardously operations" state.

[0176] It should be noted that the above judgment conditions do not include the equal situation. Those skilled in the art can define the equal situation according to specific needs. For example, simplify the 4 operating states in Figure 6 to the following 2 operating states: (1) PL >= AL; (2) PL < AL. Or, (1) PL > AL; (2) PL <= AL. This application does not limit the equal situation and will not elaborate further.

[0177] It should also be noted that when the operating state of the positioning system is in the "nominal operations" state, the system does not need to give an alarm. The corresponding indication information can selectively include non-alarm information.

[0178] Next, based on the 3 alarm levels corresponding to the above 2 operating states, the hierarchical alarm mechanism provided by this application will be described. Figure 7 For the hierarchical alarm mechanism based on the simplified 2 operating states, as Figure 7 shown, the hierarchical alarm mechanism is as follows:

[0179] (1) Alarm level 3 (System unavailable): When PL > AL, the operating state of the positioning system is in the "system unavailable" state.

[0180] That is, when the protection level PL exceeds the alarm limit AL, the positioning system is not suitable to continue providing positioning services due to factors such as too large system positioning error. The positioning system is in the "system unavailable" state. This alarm level can be determined as sub-alarm level 3, that is, Alarm level 3, which is used to indicate that the positioning system cannot work properly at this time (System unavailable).

[0181] (2) Alarm level 2 (High risk): When AL - PL ∈ (0, Δ H )), the operating state of the positioning system is in the "High risk" state.

[0182] That is, when the protection level PL is close to the alarm limit AL and the difference from AL does not exceed the first threshold Δ HWhen the positioning system is in a high-risk state, special attention should be paid to the accuracy of the positioning results or the working state of the positioning system should be adjusted in time.

[0183] (3)Alarm level 1 (Low risk): When AL-PL∈(Δ H ,Δ L ], the working status of the positioning system is "low risk status".

[0184] That is, when the protection level PL approaches the alarm limit AL and the difference with the alarm limit AL exceeds the first threshold Δ H Does not exceed the second threshold Δ L When the positioning system has a small system positioning error, the alarm level can be determined as sub-alarm level 1, i.e. Alarm level 1, which is used to indicate that the positioning system is in a low-risk state and it may be necessary to pay attention to the accuracy of the positioning results or adjust the working status of the positioning system in a timely manner.

[0185] The values ​​of the parameters mentioned above are as follows:

[0186] (1) Protection level PL: The protection level PL may be obtained by measurement, calculation or other means, which is not limited in this application.

[0187] (2) Alarm limit AL, first threshold Δ H , the second threshold Δ L Parameters such as are related to specific positioning services and can be pre-set or carried in the positioning request, for example, in the QoS parameters;

[0188] (3) Positioning error (PE): PE is the error distribution / statistical value obtained by considering multiple error sources. Different positioning error PE values ​​can be obtained according to different positioning methods. The positioning error PE can be obtained by measurement, calculation or other methods, which are not limited in this application. Taking the observed time difference of arrival (OTDOA) positioning method as an example, the possible error sources and error acquisition methods can be shown in Table 1 below:

[0189] Table 1

[0190]

[0191]

[0192] Regarding the positioning error PE, in the cell IE NR-MeasQuality [37.355CR], the protection level and the corresponding confidence level can be reported to reflect the positioning confidence control method provided by this application. For example, the features shown in Table 2 below can be added to the standard [37.355CR]:

[0193] Table 2

[0194]

[0195] Its relevant description can be shown in Table 3 below:

[0196] Table 3

[0197]

[0198] When the positioning confidence of the positioning system meets one of the above warning conditions, the warning level and / or error information need to be indicated in the corresponding message, such as the sub-warning level 2 and / or the error source and error value that cause the error, etc., to notify the positioning system to take corresponding measures for adjustment according to different situations of the positioning confidence and the risk prompts corresponding to different warning levels to meet the requirements of the system confidence. Usually, according to different positioning scenarios (such as MO-LR, MT-LR) and different positioning schemes (such as LMF-based positioning, UE-based positioning), relevant warning information and / or error information can be carried in different messages.

[0199] The above example introduces the hierarchical warning mechanism by taking the proximity of the protection level PL and the alarm limit AL as an example. The following takes the proximity of the protection level PL, the positioning error PE, and the alarm limit AL in the confidence-related indicators as an example to introduce the hierarchical warning mechanism provided by this application. Still taking Figure 7 as an example, the 4 working states in Figure 6 are simplified into the following 2 working states:

[0200] (1) PE < PL, that is, when the "positioning error PE" of the terminal device does not exceed the error boundary corresponding to the "protection level PL", the working state of the positioning system is the "nominal operations" state;

[0201] (2) PE > PL, that is, when the "positioning error PE" of the terminal device exceeds the error boundary corresponding to the "protection level PL", the working state of the positioning system is the "misleading operations" state, or the "hazardously operations" state.

[0202] It should be noted that the above determination conditions do not include the case of equality. Those skilled in the art can define the case of equality according to specific requirements. For example, the four working states in Figure 6 are simplified to the following two working states: (1) PE <= PL; (2) PE > PL. Or, (1) PE < PL; (2) PE >= PE. The present application does not limit the case of equality and will not elaborate further.

[0203] It should also be noted that when the working state of the positioning system is in the "nominal operations" state, the system does not need to give an alarm. The corresponding indication information can optionally include non-alarm information.

[0204] The following describes the hierarchical alarm mechanism provided by the present application based on the two alarm levels corresponding to the above two working states. The hierarchical alarm mechanism is as follows:

[0205] (1) Alarm level 2 (High risk) (at the estimated position 4): When PL < AL < PE, the working state of the positioning system is in the "hazardously operations" state.

[0206] That is, when the "protection level PL" does not exceed the "alarm limit AL", and the "alarm limit AL" does not exceed the "positioning error PE", the positioning service provided by the positioning system may have low accuracy and poor reliability due to factors such as large system positioning errors. This alarm level can be determined as sub-alarm level 2, that is, Alarm level 2, which is used to indicate that the positioning system is in a high-risk state and requires special attention to the accuracy of the positioning result or timely adjustment of the working state of the positioning system.

[0207] (2) Alarm level 1 (High risk) (at the estimated position 3): When PL < PE < AL, the working state of the positioning system is in the "Low risk" state.

[0208] That is, when the "protection level PL" does not exceed the "positioning error PE", and the "positioning error PE" does not exceed the "alarm limit AL", the positioning system has a small system positioning error. This alarm level can be determined as sub-alarm level 1, that is, Alarm level 1, which is used to indicate that the positioning system is in a low-risk state and may require attention to the accuracy of the positioning result or may require timely adjustment of the working state of the positioning system.

[0209] The value ranges of the above-mentioned parameters can refer to the value descriptions in the above embodiments taking the proximity of the protection level PL and the alarm limit AL as an example, and will not be elaborated here.

[0210] The above example introduces the hierarchical alarm mechanism by taking the proximity of the protection level PL, the positioning error PE, and the alarm limit AL as an example. The following takes the proximity of the protection level PL and the positioning error PE in the confidence-related indicators as an example to introduce the hierarchical alarm mechanism provided by this application. Still taking Figure 7 as an example, the Figure 6 four working states are simplified into the following two working states:

[0211] (1) PE < PL, that is, when the "positioning error PE" of the terminal device does not exceed the error boundary corresponding to the "protection level PL", the working state of the positioning system is the "nominal operations" state;

[0212] (2) PL < PE, that is, when the "positioning error PE" of the terminal device exceeds the error boundary corresponding to the "protection level PL", the working state of the positioning system is a high-risk state or a low-risk state.

[0213] It should be noted that the above determination conditions do not include the equal situation. Those skilled in the art can define the equal situation according to specific requirements. For example, the Figure 6 four working states are simplified into the following two working states: (1) PE <= PL; (2) PL < PE. Or, (1) PE < PL; (2) PL <= PE. This application does not limit the equal situation and will not elaborate further.

[0214] It should also be noted that when the working state of the positioning system is the "nominal operations" state, the system does not need to alarm. The corresponding indication information can selectively include non-alarm information.

[0215] The following describes the hierarchical alarm mechanism provided by this application based on the two alarm levels corresponding to the above two working states. The hierarchical alarm mechanism is as follows:

[0216] (1) Alarm level 2 (High risk): When PE - PL ∈ (Δ K , Δ F , the working state of the positioning system is the "High risk" state.

[0217] That is, when the difference between the protection level and the positioning error PE exceeds the third threshold Δ K , and does not exceed the fourth threshold Δ FWhen the positioning system is in a high-risk state, special attention should be paid to the accuracy of the positioning results or the working state of the positioning system should be adjusted in time.

[0218] (2)Alarm level 1 (Low risk): When PE-PL∈(0,Δ K ], the working status of the positioning system is "low risk status".

[0219] That is, when the protection level PL is close to the positioning error PE, and the difference between the protection level PL and the positioning error PE exceeds 0, it does not exceed the third threshold Δ k When the positioning system has a small system positioning error, the alarm level can be determined as sub-alarm level 1, i.e. Alarm level 1, which is used to indicate that the positioning system is in a low-risk state and it may be necessary to pay attention to the accuracy of the positioning results or adjust the working status of the positioning system in a timely manner.

[0220] The values ​​of the parameters involved above can refer to the value description in the above embodiment taking the proximity between the protection level PL and the alarm limit AL as an example, and will not be repeated here. k , the fourth threshold Δ F Parameters such as are related to specific positioning services and may be pre-set or carried in a positioning request, such as in a QoS parameter.

[0221] It should be noted that the above sub-alarm level and the alarm type are positively correlated, that is, the higher the alarm level, the greater the positioning error and the more dangerous the system. Optionally, the sub-alarm level and the alarm type can also be negatively correlated, which is not limited in this application.

[0222] It should be understood that the above embodiments are merely examples of implementing the hierarchical alarm mechanism. In the actual implementation process, there may be other implementation methods of the alarm mechanism, and this application does not make any specific limitations on this.

[0223] The following will be combined Figures 8 to 9 The method for controlling the positioning reliability provided in the embodiment of the present application is specifically described.

[0224] It should be noted that the message names between the devices or the names of the parameters in the messages in the following embodiments of the present application are only examples, and other names may be used in the specific implementation, and the embodiments of the present application do not make specific limitations on this.

[0225] Figure 8The flowchart of a method 800 for controlling the reliability of a positioning system provided in an embodiment of the present application is shown in the figure. Figure 8 The location management device in may correspond to Figure 3 or Figure 4 LMF in, or Figure 4 LMC in; Figure 8 The terminal device in can correspond to Figure 3 or Figure 4 UE in; Figure 8 The network devices in can correspond to Figure 3 or Figure 4 In ng-eNB or gNB, Figure 8 The access and mobility management device in may correspond to Figure 3 or Figure 4 AMF in the middle. Among them, this embodiment is a control method for ensuring the reliability of positioning based on the design of UE-assisted / LMF-based positioning scheme, which can be applied to the above-mentioned MO-LR or MT-LR or NI-LR positioning scenarios. The UE-assisted / LMF-based positioning scheme means that in the presence of auxiliary data, the terminal device only provides the measurement result of the reference signal, does not perform position calculation, and the position calculation of the terminal device is performed by the positioning management device. The control method 800 of the positioning reliability includes at least the following steps:

[0226] In the embodiment of the present application, the positioning process can be initiated through the following steps S801a or S801b or S801c:

[0227] S801a: The terminal device sends a positioning request to the access and mobility management device. Correspondingly, the access and mobility management device receives the positioning request from the terminal device. The positioning request is used to request positioning of the terminal device.

[0228] That is, the terminal device may actively initiate a process for positioning the terminal device, and this step may be applicable to the MO-LR positioning scenario.

[0229] The positioning request may also be referred to as a location service request in this application. Optionally, indication information related to the positioning confidence may be indicated in the positioning request, and the indication information includes at least one or more of the following information: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. For example, one or more of the following information may be indicated in the QoS parameters of the positioning request: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc.

[0230] S801b: The third-party device or function sends a positioning request to the access and mobility management device. Correspondingly, the access and mobility management device receives the positioning request from the third-party device or function. The positioning request is used to request positioning of the terminal device.

[0231] That is, the process of locating the terminal device may be initiated by a third-party device or function, and this step may be applicable to the MT-LR positioning scenario.

[0232] Optionally, the third-party device or function may be a 5G core network (5G core, 5GC) location services (location services, LCS) entity, an LCS client or an application function inside / outside the service PLMN, etc. Exemplarily, the 5GC LCS entity in the embodiment of the present application may be, for example, a gateway mobile location center (GMLC).

[0233] Optionally, indication information related to the positioning confidence may be indicated in the positioning request, and the indication information includes at least one or more of the following information: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. For example, one or more of the following information may be indicated in the QoS parameters of the positioning request: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc.

[0234] S801c: The access and mobility management device determines some positioning service requirements of the terminal device (eg, the terminal device needs an emergency call), and triggers a positioning request itself.

[0235] That is, the access and mobility management device may initiate a process for positioning the terminal device, and this step may be applicable to the above-mentioned NI-LR positioning scenario.

[0236] Optionally, indication information related to the positioning confidence may be indicated in the positioning request, and the indication information includes at least one or more of the following information: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. For example, one or more of the following information may be indicated in the QoS parameters of the positioning request: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc.

[0237] It should be understood that the above are only exemplary ways of initiating a positioning process, and there may be other ways of initiating a positioning process, which are not specifically limited in the embodiments of the present application.

[0238] It should be noted that before executing steps S801a, S801b, and S801c in the embodiments of the present application, the positioning confidence control method provided by the present application may also have an Offline step, that is, a step that needs to be executed before starting the positioning process of a terminal device. The embodiments of the present application no longer specifically describe the Offline steps that need to be executed before executing steps S801a, S801b, and S801c, and there is no specific limitation on the execution method of these steps. Those skilled in the art may refer to the prior art process.

[0239] Furthermore, the method for controlling the positioning reliability provided in the embodiment of the present application further includes the following steps S802-S808:

[0240] S802: The access and mobility management device sends a positioning request to the positioning management device. Correspondingly, the positioning management device receives the positioning request from the access and mobility management device. The positioning request is used to request positioning of the terminal device.

[0241] Optionally, indication information related to the positioning confidence may be indicated in the positioning request, and the indication information includes at least one or more of the following information: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. For example, one or more of the following information may be indicated in the QoS parameters of the positioning request: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc.

[0242] The positioning request sent by the access and mobility management device to the positioning management device may be the positioning request in the above step S801a, S801b or S801c.

[0243] S803: The positioning management device sends a first request message to the terminal device. Correspondingly, the terminal device receives the first request message from the positioning management device. The first request message is used to request the positioning capability of the terminal device.

[0244] Optionally, the first request message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message, that is, the positioning management device may request the terminal device for positioning capability through an LPP message 1. For example, Figure 8As shown, the LPP message 1 may be, for example, an LPP request capabilities (LPP Request Capabilities) message.

[0245] S804: The terminal device sends a first response message to the positioning management device. Correspondingly, the positioning management device receives the first response message from the terminal device. The first response message carries or includes the positioning capability of the terminal device.

[0246] Optionally, the first response message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message, that is, the terminal device may send its positioning capability to the positioning management device via LPP message 2. For example, Figure 8 As shown, the LPP message 2 may be, for example, an LPP Provide Capabilities message.

[0247] Exemplarily, in an embodiment of the present application, the positioning capability of the terminal device may be, for example, whether it supports control or measurement related to positioning confidence, for example, measurement of one or more parameters such as alarm limit AL, reminder time TTA, or confidence risk IR in confidence-related KPIs, or measurement of one or more parameters such as error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. The embodiment of the present application does not make specific limitations on this.

[0248] Optionally, different from the method of acquiring the terminal device positioning capability in steps S803-S804, in an embodiment of the present application, the terminal device may actively send the terminal device's positioning capability to the positioning management device without request, that is, when executing the positioning confidence control method provided in this embodiment, step S803 may be omitted, and the embodiment of the present application does not make any specific limitation on this.

[0249] S805. The positioning management device sends a second request message to the next generation radio access network (NG-RAN). Correspondingly, the NG-RAN device receives the second request message from the positioning management device. The second request message is used to request positioning assistance data.

[0250] Optionally, the second request message may be carried on an NR positioning protocol (NR positioning protocolannex, NRPPa) message. That is, the positioning management device may request positioning assistance data from the NG-RAN device through NRPPa message 1. For example, Figure 8As shown, the NRPPa message 1 may be, for example, an NRPPa information request (NRPPa Information Request) message.

[0251] Exemplarily, the positioning assistance data may be a network device involved in positioning in the NG-RAN device (e.g., Figure 3 or Figure 4 or Figure 8 The location information of the ng-eNB or gNB in ​​the present invention, such as physical cell IDs (PCIs), global cell IDs (GCIs), TP IDs, PRS configuration information, or other auxiliary information related to the location reliability control, etc., is not limited in this application. Figure 8 The ng-eNB or gNB involved in positioning is located in the NG-RAN equipment.

[0252] S806. NG-RAN sends a second response message to the positioning management device. Correspondingly, the positioning management device receives the second response message from the NG-RAN device. The second response message carries or includes the positioning assistance data provided by the NG-RAN device to the positioning management device.

[0253] Optionally, the second response message may be carried on an NR positioning protocol (NR positioning protocolannex, NRPPa) message. That is, the NG-RAN may send positioning assistance data to the positioning management device via NRPPa message 2. For example, Figure 8 As shown, the NRPPa message 2 may be, for example, an NRPPa information response (NRPPa InformationResponse) message.

[0254] It should be noted that, in the embodiment of the present application, the positioning assistance data provided by the NG-RAN device to the positioning management device may not only include the location information and related configuration information of the network devices participating in positioning in the above-mentioned NG-RAN device, but may also include other auxiliary data for assisting positioning that the NG-RAN device can provide to the positioning management device, such as the location information of other related devices in the NG-RAN, or other auxiliary information related to positioning confidence control, etc. The embodiment of the present application does not specifically limit this.

[0255] Optionally, different from the method of acquiring positioning assistance data in steps S705-S706, in an embodiment of the present application, the NG-RAN device may also actively send positioning assistance data that the NG-RAN can provide to the positioning management device through an NRPPa message without request, that is, when executing the positioning reliability control method provided in this embodiment, step S705 may be omitted, and the embodiment of the present application does not make specific limitations on this.

[0256] S807: The terminal device sends a third request message to the positioning management device. Correspondingly, the positioning management device receives the third request message from the terminal device. The third request message is used to request positioning assistance data.

[0257] Optionally, the third request message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message. That is, the terminal device may request positioning assistance data from the positioning management device through LPP message 3. For example, Figure 8 As shown, the LPP message 3 may be, for example, an LPP request assistance data (LPP Request Assistance Data) message.

[0258] S808: The positioning management device sends a third response message to the terminal device. Correspondingly, the terminal device receives the third response message from the positioning management device. The third response message carries or includes the positioning assistance data provided by the positioning management device to the terminal device.

[0259] Optionally, the third response message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message. That is, the positioning management device may send positioning assistance data to the terminal device via LPP message 4. For example, Figure 8 As shown, the LPP message 4 may be, for example, an LPP Provide Assistance Data message.

[0260] Among them, in the embodiment of the present application, the positioning assistance data provided by the positioning management device to the terminal device not only includes the positioning assistance data provided by the above-mentioned NG-RAN device to the positioning management device, but also includes other auxiliary data that the positioning management device can provide to the terminal device (for example, it can be auxiliary data obtained by the positioning management device from other gateways), such as physical cell IDs (PCIs), global cell IDs (GCIs), TP IDs, PRS configuration information, or other auxiliary information related to positioning reliability control, etc., which is not specifically limited in the embodiment of the present application.

[0261] Optionally, different from the method of obtaining positioning assistance data in steps S807-S808, in an embodiment of the present application, the positioning management device may actively provide positioning assistance data to the terminal device without request, that is, when executing the positioning confidence control method provided in this embodiment, step S807 may be omitted, and the embodiment of the present application does not make specific limitations on this.

[0262] It should be noted that the above steps S801-S808 are only exemplary of the process in which a network device participates when a terminal device obtains positioning assistance data in the positioning reliability control method. Of course, in the positioning reliability control method provided in this application, the terminal device may need to obtain multiple sets of positioning assistance data, and in this case, the participation of multiple network devices may be required. Among them, the processing and interaction process of each network device ( Figure 8 (not shown) may refer to the processing of the NG-RAN device and the related interaction processes in the above steps S801-S808, which will not be repeated here.

[0263] Furthermore, the positioning method provided in the embodiment of the present application further includes the following steps S809-S811:

[0264] S809: The positioning management device sends a fourth request message to the terminal device. Correspondingly, the terminal device receives the fourth request message from the positioning management device. The fourth request message is used to request the first parameter set.

[0265] Optionally, the fourth request message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message, that is, the positioning management device may request the terminal device for positioning measurement parameters through LPP message 5. For example, Figure 8 As shown, the LPP message 5 may be, for example, an LPP request location information (LPP Request Location Information).

[0266] Among them, the first parameter set is the positioning measurement result obtained by the terminal device through measuring the reference signal, and the first parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, confidence level, threat model, threat occurrence probability, and failure mode.

[0267] S810: The terminal device sends a fourth response message to the positioning management device. Correspondingly, the positioning management device receives a fourth response message from the terminal device. The fourth response message carries or includes the first parameter set.

[0268] Optionally, the fourth response message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message, that is, the terminal device may send the first parameter set to the positioning management device via LPP message 6. For example, Figure 8 As shown, the LPP message 6 may, for example, provide location information (LPP Provide Location Information) for the LPP.

[0269] Optionally, different from the method of obtaining the first parameter set in steps S909-S911, in an embodiment of the present application, the terminal device may actively send the first parameter set to the positioning management device without request, that is, when executing the positioning reliability control method provided in this embodiment, step S909 may be omitted, and the embodiment of the present application does not make any specific limitation on this.

[0270] S811. The positioning management device calculates the position and / or estimates the positioning error of the terminal device according to the first parameter set and / or positioning assistance data.

[0271] In a possible implementation, the positioning management device obtains a first positioning result based on a first parameter set and / or positioning assistance data, and the first positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes error information and / or alarm information. The error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode; and the alarm information includes a determination result after comparing the first positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the first positioning result, and the above-mentioned error information.

[0272] Exemplarily, the error information obtained by the positioning management device includes the measurement result of the protection level PL, which can be compared with the relevant parameters of the positioning confidence: alarm limit AL, reminder time TTA, confidence risk IR, positioning error PE, etc., to obtain the evaluation of the positioning confidence, thereby ensuring the positioning confidence of the positioning system. Among them, the parameters such as alarm limit AL, reminder time TTA, confidence risk IR are pre-set and related to the specific positioning service. The positioning error PE can be obtained by calculation, pre-configuration or measurement.

[0273] It should be noted that the parameters related to the control of the positioning reliability, such as the protection level PL, can be calculated by the terminal device and included in the first parameter set and sent to the positioning management device. The positioning management device can also calculate it by itself based on other parameters and / or positioning auxiliary data in the first parameter set, and this application does not limit this. If the parameters related to the control of the positioning reliability are calculated by the terminal device, the positioning management device can determine whether an alarm is required based on the calculated value reported by the terminal device. If calculated by the positioning management device, the positioning management device first calculates the parameters related to the control of the positioning reliability, and then determines whether an alarm is required.

[0274] In one possible implementation, the determination result includes: if the first positioning result meets a pre-set determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the first positioning result, and error information; if the first positioning result does not meet the pre-set determination condition, the determination result includes no warning information or does not include warning information, that is, the determination result selectively includes no warning information.

[0275] Exemplarily, if the first positioning result satisfies the pre-set determination condition 1, the determination result includes warning information; or, if the first positioning result satisfies the pre-set determination condition 1, the determination result includes the warning level corresponding to the first positioning result; or, if the first positioning result satisfies the pre-set determination condition 1, the determination result includes the above-mentioned error information; or, if the first positioning result satisfies the pre-set determination condition 1, the determination result includes warning information and the warning level corresponding to the first positioning result; or, if the first positioning result satisfies the pre-set determination condition 1, the determination result includes warning information and error information; or, if the first positioning result satisfies the pre-set determination condition 1, the determination result includes warning information, the warning level corresponding to the first positioning result, and error information. If the first positioning result does not satisfy the pre-set determination condition 1, the determination result includes information that does not require warning, or the determination result does not include any warning information, that is, it selectively includes non-warning information.

[0276] In one possible implementation, the judgment result includes: if the first positioning result does not meet the pre-set judgment conditions, the judgment result includes at least one or more of the following information: warning information, the warning level corresponding to the first positioning result, and error information; if the first positioning result meets the pre-set judgment conditions, the judgment result includes non-warning information or does not include warning information, that is, the judgment result selectively includes non-warning information.

[0277] Exemplarily, if the first positioning result does not meet the preset judgment condition 2, the judgment result includes warning information; or, if the first positioning result does not meet the preset judgment condition 2, the judgment result includes the warning level corresponding to the first positioning result; or, if the first positioning result does not meet the preset judgment condition 2, the judgment result includes the above-mentioned error information; or, if the first positioning result does not meet the preset judgment condition 2, the judgment result includes warning information and the warning level corresponding to the first positioning result; or, if the first positioning result does not meet the preset judgment condition 2, the judgment result includes warning information and error information; or, if the first positioning result does not meet the preset judgment condition 2, the judgment result includes warning information, the warning level corresponding to the first positioning result, and error information. If the first positioning result meets the preset judgment condition 2, the judgment result includes information that does not require warning, or the judgment result does not include any warning information, that is, it selectively includes non-warning information.

[0278] In a possible implementation, the above-mentioned pre-set determination condition may include one or more sub-determination conditions, and the above-mentioned alarm level may also include one or more sub-alarm levels; wherein, one sub-alarm level may correspond to one or more sub-determination conditions, for example, satisfying the first sub-determination condition and the second sub-determination condition may determine the first alarm level, or, not satisfying the first sub-determination condition or the second sub-determination condition may determine the first alarm level; or, one or more sub-alarm levels may correspond to one sub-determination condition, for example, satisfying the first sub-determination condition may determine the first alarm level and the second alarm level, and then satisfying the second sub-determination condition may determine the second alarm level, or not satisfying the first sub-determination condition may determine the first alarm level and the second alarm level, and then not satisfying the second sub-determination condition may determine the second alarm level; the determination result includes at least one or more of the following information: information on whether an alarm is required, the sub-alarm level corresponding to the first positioning result, error information, etc.

[0279] For example, taking the proximity between the protection level PL and the alarm limit AL in the confidence-related indicators as an example, the positioning confidence of the working state of the positioning system is estimated to determine whether an alarm is needed. Figure 6 As shown, the hierarchical alarm mechanism provided by the present application is described by taking the pre-set judgment condition including 3 sub-judgment conditions and the alarm level including 3 sub-alarm levels as an example. For example, the 3 sub-judgment conditions can be respectively:

[0280] (1) PL>AL;

[0281] (2)AL-PL∈(0,Δ H ];

[0282] (3)AL-PL∈(ΔH ,Δ L ].

[0283] Among them, (1) PL>AL;

[0284] When the positioning confidence of the first positioning result satisfies the first sub-decision condition PL>AL, the working state of the positioning system is "system unavailable". That is, when the protection level PL exceeds the alarm limit AL, the positioning system is not suitable for continuing to provide positioning services due to factors such as too large system positioning error. The positioning system is unavailable (system unavailable). This alarm level can be determined as sub-alarm level 3 (the highest sub-alarm level), that is, Alarm level 3, which is used to indicate that the positioning system cannot work normally at this time (System unavailable). Among them, the judgment result includes at least one or more of the following information: alarm information, the third sub-alarm level corresponding to the first positioning result, error information, etc.

[0285] (2)AL-PL∈(0,Δ H ];

[0286] When the positioning confidence of the first positioning result meets the second sub-decision condition L-PL∈(0,Δ H ], the working state of the positioning system is "high risk state (High risk)". That is, when the protection level PL is close to the alarm limit AL, and the difference with AL does not exceed the first threshold value Δ H When the positioning service provided by the positioning system may be of low accuracy and poor reliability due to factors such as large system positioning errors, the alarm level can be determined as sub-alarm level 2 (the second highest sub-alarm level), i.e., Alarm level 2, which is used to indicate that the positioning system is in a high-risk state and needs to pay special attention to the accuracy of the positioning results or adjust the working state of the positioning system in a timely manner. Among them, the determination result includes at least one or more of the following information: alarm information, the second sub-alarm level corresponding to the first positioning result, error information, etc.

[0287] (3)AL-PL∈(Δ H ,Δ L ].

[0288] When the positioning confidence of the first positioning result satisfies the first sub-decision condition AL-PL∈(Δ H ,Δ L ], the working state of the positioning system is "low risk state". That is, when the protection level PL is close to the alarm limit AL, and the difference with the alarm limit AL exceeds the first threshold Δ H Does not exceed the second threshold Δ LWhen the positioning system has a small system positioning error, the alarm level can be determined as sub-alarm level 1 (the lowest sub-alarm level), i.e., Alarm level 1, which is used to indicate that the positioning system is in a low-risk state and may need to pay attention to the accuracy of the positioning result or may need to adjust the working state of the positioning system in a timely manner. The determination result includes at least one or more of the following information: alarm information, the first sub-alarm level corresponding to the first positioning result, error information, etc.

[0289] Among them, the alarm limit AL is the horizontal / vertical alarm limit, which is the maximum allowable horizontal / vertical position error. Exceeding this horizontal error indicates that the system is not suitable for the intended application. The value of this indicator is usually pre-set and is related to the specific positioning service. The protection level PL can be obtained by measurement, calculation or other means, which is not limited in this application. The positioning error PE is the error distribution / statistical value obtained by considering multiple error sources. Different positioning error PE values ​​can be obtained according to different positioning methods. The positioning error PE can be obtained by measurement, calculation or other means, which is not limited in this application. The first threshold Δ H , the second threshold Δ L The above parameters are related to the specific positioning service, are pre-set, and can be carried in the QoS parameters of the positioning request.

[0290] For example, the protection level PL, positioning error PE and the proximity of the alarm limit AL in the confidence-related indicators can be used as examples to introduce the hierarchical alarm mechanism provided by the present application, estimate the positioning confidence of the working state of the positioning system, and then determine whether an alarm is needed. Figure 8 As shown, taking the pre-set judgment condition including 2 sub-judgment conditions and the alarm level including 2 sub-alarm levels as an example, the hierarchical alarm mechanism provided by the present application is described. For example, the 2 sub-judgment conditions can be respectively:

[0291] (1)PL <AL<PE;

[0292] (2)PL <PE<AL。

[0293] Among them, (1) PL <AL<PE;

[0294] When the positioning confidence of the first positioning result satisfies the first sub-judgment condition PL < AL < PE, the operating state of the positioning system is in the "hazardously operations" state. That is, when the "protection level PL" does not exceed the "alert limit AL", and the "alert limit AL" does not exceed the "positioning error PE", due to factors such as large system positioning errors, the positioning service provided by the positioning system may have low accuracy and poor reliability. This warning level can be determined as the sub-warning level 2, that is, Alarm level 2, which is used to indicate that the positioning system is in a high-risk state and special attention needs to be paid to the accuracy of the positioning result or the operating state of the positioning system should be adjusted in a timely manner. Among them, the determination result includes at least one or more of the following information: warning information, the second sub-warning level corresponding to the first positioning result, error information, etc.

[0295] (2) PL < PE < AL.

[0296] When the positioning confidence of the first positioning result satisfies the second judgment condition PL < PE < AL, the operating state of the positioning system is in the "Low risk" state.

[0297] That is, when the "protection level PL" does not exceed the "positioning error PE", and the "positioning error PE" does not exceed the "alert limit AL", due to the existence of small system positioning errors in the positioning system, this warning level can be determined as the sub-warning level 1, that is, Alarm level 1, which is used to indicate that the positioning system is in a low-risk state and it may be necessary to pay attention to the accuracy of the positioning result or it may be necessary to adjust the operating state of the positioning system in a timely manner. Among them, the determination result includes at least one or more of the following information: warning information, the first sub-warning level corresponding to the first positioning result, error information, etc.

[0298] When PE < PL, that is, when the "positioning error PE" of the terminal device does not exceed the error boundary corresponding to the "protection level PL", the operating state of the positioning system is in the "nominal operations" state; at this time, the positioning system does not need to give an alarm. The corresponding indication information can selectively include non-alarm information.

[0299] It should be understood that the hierarchical alarm mechanism proposed in this application can also be based on the comparison of other positioning confidence-related parameters, or other corresponding forms of sub-warning levels and sub-judgment conditions, and this application does not make any limitations in this regard.

[0300] The positioning management device calculates the position and / or estimates the positioning error of the terminal device according to the first parameter set and / or positioning auxiliary data. Among them, the confidence information in the first positioning result is mainly used for positioning error estimation, and the first positioning result will be compared with the pre-set judgment condition, and when the first positioning result meets or does not meet the pre-set judgment condition, a corresponding alarm information is provided. The control method of positioning confidence provided in the present application provides a feasible implementation method for ensuring the positioning confidence during the positioning process, and can indicate the alarm level and error source in the corresponding message when the positioning error is large.

[0301] Based on the consideration of the positioning reliability control, optionally, the positioning reliability control method provided in the embodiment of the present application further includes the following step S812:

[0302] S812. The positioning management device performs positioning error correction according to the first positioning result, and obtains a second positioning result after the positioning error correction.

[0303] Optionally, the terminal device can perform positioning error correction on the location information of the terminal device based on the error information contained in the first positioning result, such as the error source, error value, positioning error PE and other parameters, and obtain a second positioning result after the positioning error correction. The second positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

[0304] Optionally, in the embodiment of the present application, according to different initiation modes of the positioning process, the positioning method provided in the embodiment of the present application may further include the following step S813:

[0305] S813: The positioning management device sends the first positioning result or the second positioning result to the access and mobility management device. Correspondingly, the access and mobility management device receives the first positioning result or the second positioning result of the terminal device from the positioning management device.

[0306] It should be noted that if step S812 is not performed, the positioning management device sends the first positioning result to the access and mobile and management devices, and the first positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes error information and / or alarm information. Among them, the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode; and the alarm information includes a judgment result after comparing the first positioning result with a pre-set judgment condition, and the judgment result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the first positioning result, and the above-mentioned error information.

[0307] If step S812 is executed, the positioning management device sends a second positioning result to the access and mobile and management device, and the second positioning result includes the location information and / or confidence information of the terminal device after the positioning error is corrected; the confidence information after the positioning error is corrected includes error information and / or alarm information. Among them, the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, failure mode; and the alarm information includes the judgment result after comparing the first positioning result with the pre-set judgment condition, and the judgment result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the first positioning result, and the above-mentioned error information.

[0308] Optionally, in an embodiment of the present application, if the above positioning process is initiated by a terminal device or a third-party device or function such as a 5GC LCS entity (ie, executing step S802b), the positioning method provided in the embodiment of the present application further includes the following steps S814a-S814b:

[0309] S814a: The access and mobility management device sends the first positioning result or the second positioning result to the terminal device. Correspondingly, the terminal device receives the first positioning result or the second positioning result sent by the access and mobility management device.

[0310] It should be noted that if step S812 is not performed, the access and mobility management device sends a first positioning result to the terminal device, and the first positioning result includes the location information and / or confidence information of the terminal device. If step S812 is performed, the access and mobility management device sends a second positioning result to the terminal device, and the second positioning result includes the location information and / or confidence information of the terminal device after the positioning error is corrected.

[0311] S814b, the access and mobility management device sends the first positioning result or the second positioning result to a third-party device or function (such as a 5GC LCS entity). Correspondingly, the third-party device or function receives the first positioning result or the second positioning result of the terminal device from the access and mobility management device.

[0312] It should be noted that if step S812 is not performed, the access and mobility management device sends a first positioning result to the third-party device or function, and the first positioning result includes the location information and / or confidence information of the terminal device. If step S812 is performed, the access and mobility management device sends a second positioning result to the third-party device or function, and the second positioning result includes the location information and / or confidence information of the terminal device after the positioning error is corrected.

[0313] The above embodiment is designed for the LMF-based positioning solution, and a control method for the positioning confidence is designed. A graded alarm mechanism is adopted for positioning errors of different systems to ensure the positioning accuracy in real time and ensure the high reliability of the positioning system. First of all, ensuring the confidence of the positioning system is an important research point in R17. At present, there are almost no evaluation and specific implementation methods for the confidence of the positioning system. This application provides a feasible implementation method for ensuring the positioning confidence of the positioning system. Secondly, this embodiment can adopt a graded alarm mechanism for positioning errors of different systems, instead of issuing a warning when a confidence crisis occurs. In addition, this embodiment can clearly indicate the source of error in the corresponding alarm information, which is helpful for the positioning system to make directional adjustments and can effectively ensure the confidence of the positioning system. And the positioning management device will perform error correction according to the error information reported by the terminal device to ensure the positioning accuracy in real time.

[0314] Fig. 9 This is a flow chart of another method 900 for controlling positioning reliability provided in an embodiment of the present application. As shown in the figure, Fig. 9 The location management device in may correspond to Figure 3 or Figure 4 LMF in, or Figure 4 LMC in; Fig. 9 The terminal device in can correspond to Figure 3 or Figure 4 UE in; Fig. 9 The network devices in can correspond to Figure 3 or Figure 4 In eNB or gNB, Fig. 9 The access and mobility management device in may correspond to Figure 3 or Figure 4 AMF. Figure 8 The difference between the UE-assisted / LMF-based positioning scheme shown in the figure is that the present embodiment is a control method for ensuring the reliability of the positioning based on the UE-based positioning scheme, which can be applied to the above MO-LR or MT-LR or NI-LR positioning scenarios. The UE-based positioning scheme is that in the presence of auxiliary data, the terminal device provides the reference signal measurement result and performs its position calculation. The method 900 for controlling the reliability of the positioning includes at least the following steps:

[0315] In the embodiment of the present application, the positioning process can be initiated through the following steps S901a or S901b or S901c:

[0316] S901a: The terminal device sends a positioning request to the access and mobility management device. Correspondingly, the access and mobility management device receives the positioning request from the terminal device. The positioning request is used to request positioning of the terminal device.

[0317] That is, the terminal device may actively initiate a process for positioning the terminal device, and this step may be applicable to the MO-LR positioning scenario.

[0318] The positioning request may also be referred to as a location service request in this application. Optionally, indication information related to the positioning confidence may be indicated in the positioning request, and the indication information includes at least one or more of the following information: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. For example, one or more of the following information may be indicated in the QoS parameters of the positioning request: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc.

[0319] S901b: The third-party device or function sends a positioning request to the access and mobility management device. Correspondingly, the access and mobility management device receives the positioning request from the third-party device or function. The positioning request is used to request positioning of the terminal device.

[0320] That is, the process of locating the terminal device may be initiated by a third-party device or function, and this step may be applicable to the MT-LR positioning scenario.

[0321] Optionally, the third-party device or function may be a 5G core network (5G core, 5GC) location services (location services, LCS) entity, an LCS client or an application function inside / outside the service PLMN, etc. Exemplarily, the 5GC LCS entity in the embodiment of the present application may be, for example, a gateway mobile location center (GMLC).

[0322] Optionally, indication information related to the positioning confidence may be indicated in the positioning request, and the indication information includes at least one or more of the following information: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. For example, one or more of the following information may be indicated in the QoS parameters of the positioning request: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc.

[0323] S901c: The access and mobility management device determines some positioning service requirements of the terminal device (eg, the terminal device needs an emergency call), and triggers a positioning request itself.

[0324] That is, the access and mobility management device may initiate a process for positioning the terminal device, and this step may be applicable to the above-mentioned NI-LR positioning scenario.

[0325] Optionally, indication information related to the positioning confidence may be indicated in the positioning request, and the indication information includes at least one or more of the following information: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. For example, one or more of the following information may be indicated in the QoS parameters of the positioning request: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc.

[0326] It should be understood that the above are only exemplary ways of initiating a positioning process, and there may be other ways of initiating a positioning process, which are not specifically limited in the embodiments of the present application.

[0327] It should be noted that before executing steps S901a, S901b, and S901c in the embodiments of the present application, the positioning confidence control method provided by the present application may also have an Offline step, that is, a step that needs to be executed before starting the positioning process of a terminal device. The embodiments of the present application no longer specifically describe the Offline steps that need to be executed before executing steps S901a, S901b, and S901c, and there is no specific limitation on the execution method of these steps. Those skilled in the art may refer to the existing technical processes.

[0328] Furthermore, the method for controlling the positioning reliability provided in the embodiment of the present application further includes the following steps S902-S908:

[0329] S902: The access and mobility management device sends a positioning request to the positioning management device. Correspondingly, the positioning management device receives the positioning request from the access and mobility management device. The positioning request is used to request positioning of the terminal device.

[0330] Optionally, indication information related to the positioning confidence may be indicated in the positioning request, and the indication information includes at least one or more of the following information: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. For example, one or more of the following information may be indicated in the QoS parameters of the positioning request: protection level PL, alarm limit AL, confidence risk IR, reminder time TTA, error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc.

[0331] The positioning request sent by the access and mobility management device to the positioning management device may be the positioning request in the above step S901a, S901b or S901c.

[0332] S903: The positioning management device sends a first request message to the terminal device. Correspondingly, the terminal device receives the first request message from the positioning management device. The first request message is used to request the positioning capability of the terminal device.

[0333] Optionally, the first request message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message, that is, the positioning management device may request the terminal device for positioning capability through an LPP message 1. For example, Fig. 9 As shown, the LPP message 1 may be, for example, an LPP request capabilities (LPP Request Capabilities) message.

[0334] S904: The terminal device sends a first response message to the positioning management device. Correspondingly, the positioning management device receives the first response message from the terminal device. The first response message carries or includes the positioning capability of the terminal device.

[0335] Optionally, the first response message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message, that is, the terminal device may send its positioning capability to the positioning management device via LPP message 2. For example, Fig. 9 As shown, the LPP message 2 may be, for example, an LPP Provide Capabilities message.

[0336] Exemplarily, in an embodiment of the present application, the positioning capability of the terminal device may be, for example, whether it supports control or measurement related to positioning confidence, for example, measurement of one or more parameters such as alarm limit AL, reminder time TTA, or confidence risk IR in confidence-related KPIs, or measurement of one or more parameters such as error source, error value, confidence level, threat model, threat occurrence probability, failure mode, etc. The embodiment of the present application does not make specific limitations on this.

[0337] Optionally, different from the method of acquiring the terminal device positioning capability in steps S903-S904, in an embodiment of the present application, the terminal device may actively send the terminal device's positioning capability to the positioning management device without request, that is, when executing the positioning confidence control method provided in this embodiment, step S903 may be omitted, and the embodiment of the present application does not make any specific limitation on this.

[0338] S905. The positioning management device sends a second request message to the next generation radio access network (NG-RAN). Correspondingly, the NG-RAN device receives the second request message from the positioning management device. The second request message is used to request positioning assistance data.

[0339] Optionally, the second request message may be carried on an NR positioning protocol (NR positioning protocolannex, NRPPa) message. That is, the positioning management device may request positioning assistance data from the NG-RAN device through NRPPa message 1. For example, Fig. 9 As shown, the NRPPa message 1 may be, for example, an NRPPa information request (NRPPa Information Request) message.

[0340] Exemplarily, the positioning assistance data may be a network device involved in positioning in the NG-RAN device (e.g., Figure 3 or Figure 4 or Figure 7 The location information of the ng-eNB or gNB in ​​the present invention, such as physical cell IDs (PCIs), global cell IDs (GCIs), TP IDs, PRS configuration information, or other auxiliary information related to the location reliability control, etc., is not limited in this application. Fig. 9 The ng-eNB or gNB involved in positioning is located in the NG-RAN equipment.

[0341] S906. NG-RAN sends a second response message to the positioning management device. Correspondingly, the positioning management device receives the second response message from the NG-RAN device. The second response message carries or includes the positioning assistance data provided by the NG-RAN device to the positioning management device.

[0342] Optionally, the second response message may be carried on an NR positioning protocol (NR positioning protocolannex, NRPPa) message. That is, the NG-RAN may send positioning assistance data to the positioning management device via NRPPa message 2. For example, Fig. 9 As shown, the NRPPa message 2 may be, for example, an NRPPa information response (NRPPa InformationResponse) message.

[0343] It should be noted that, in the embodiment of the present application, the positioning assistance data provided by the NG-RAN device to the positioning management device may not only include the location information and related configuration information of the network devices participating in positioning in the above-mentioned NG-RAN device, but may also include other auxiliary data for assisting positioning that the NG-RAN device can provide to the positioning management device, such as the location information of other related devices in the NG-RAN, or other auxiliary information related to positioning confidence control, etc. The embodiment of the present application does not specifically limit this.

[0344] Optionally, different from the method of acquiring positioning assistance data in steps S905-S906, in an embodiment of the present application, the NG-RAN device may also actively send positioning assistance data that the NG-RAN can provide to the positioning management device through an NRPPa message without request, that is, when executing the positioning reliability control method provided in this embodiment, step S905 may be omitted, and the embodiment of the present application does not make specific limitations on this.

[0345] S907: The terminal device sends a third request message to the positioning management device. Correspondingly, the positioning management device receives the third request message from the terminal device. The third request message is used to request positioning assistance data.

[0346] Optionally, the third request message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message. That is, the terminal device may request positioning assistance data from the positioning management device through LPP message 3. For example, Fig. 9 As shown, the LPP message 3 may be, for example, an LPP request assistance data (LPP Request Assistance Data) message.

[0347] S908: The positioning management device sends a third response message to the terminal device. Correspondingly, the terminal device receives the third response message from the positioning management device. The third response message carries or includes the positioning assistance data provided by the positioning management device to the terminal device.

[0348] Optionally, the third response message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message. That is, the positioning management device may send positioning assistance data to the terminal device via LPP message 4. For example, Fig. 9 As shown, the LPP message 4 may be, for example, an LPP Provide Assistance Data message.

[0349] Among them, in the embodiment of the present application, the positioning assistance data provided by the positioning management device to the terminal device not only includes the positioning assistance data provided by the above-mentioned NG-RAN device to the positioning management device, but also includes other auxiliary data that the positioning management device can provide to the terminal device (for example, it can be auxiliary data obtained by the positioning management device from other gateways), such as physical cell IDs (PCIs), global cell IDs (GCIs), TP IDs, PRS configuration information, or other auxiliary information related to positioning reliability control, etc., which is not specifically limited in the embodiment of the present application.

[0350] Optionally, different from the method of obtaining positioning assistance data in steps S907-S908, in an embodiment of the present application, the positioning management device may actively provide positioning assistance data to the terminal device without request, that is, when executing the positioning confidence control method provided in this embodiment, step S707 may be omitted, and the embodiment of the present application does not make specific limitations on this.

[0351] It should be noted that the above steps S901-S908 are only exemplary of the process in which a network device participates when a terminal device obtains positioning assistance data in the positioning reliability control method. Of course, in the positioning reliability control method provided in this application, the terminal device may need to obtain multiple sets of positioning assistance data, and in this case, the participation of multiple network devices may be required. Among them, the processing and interaction process of each network device ( Fig. 9 (not shown) may refer to the processing of the NG-RAN device and the related interaction processes in the above steps S901-S908, which will not be described in detail here.

[0352] Furthermore, the positioning method provided in the embodiment of the present application further includes the following steps S909-S911:

[0353] S909: The terminal device performs relevant measurements to obtain a second parameter set.

[0354] The terminal device may perform downlink reference signal measurement or obtain a second parameter set from a network device. This step may refer to the prior art and is not limited in this application.

[0355] S910. The terminal device calculates the terminal device positioning and / or estimates the positioning error according to the second parameter set and / or positioning assistance data.

[0356] In one possible implementation, the terminal device obtains a third positioning result for the terminal device based on the second parameter set and / or positioning assistance data, and the third positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes error information and / or alarm information, wherein the error information is related to the positioning confidence, and includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, probability of threat occurrence, and failure mode; and the alarm information includes a determination result after comparing the third positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the third positioning result, and the above-mentioned error information.

[0357] Exemplarily, the error information obtained by the terminal device includes the measurement result of the protection level PL, which can be compared with the relevant parameters of the positioning confidence: alarm limit AL, reminder time TTA, confidence risk IR, positioning error PE, etc., to obtain the evaluation of the positioning confidence, thereby ensuring the positioning confidence of the positioning system. Among them, the parameters such as alarm limit AL, reminder time TTA, confidence risk IR are pre-set and related to the specific positioning service. The positioning error PE can be obtained by calculation, pre-configuration or measurement.

[0358] In one possible implementation, the determination result includes: if the third positioning result meets a pre-set determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the third positioning result, and error information; if the third positioning result does not meet the pre-set determination condition, the determination result includes non-warning information or does not include warning information, that is, the determination result selectively includes non-warning information.

[0359] Exemplarily, if the third positioning result satisfies the pre-set determination condition 3, the determination result includes warning information; or, if the third positioning result satisfies the pre-set determination condition 3, the determination result includes the warning level corresponding to the third positioning result; or, if the third positioning result satisfies the pre-set determination condition 3, the determination result includes error information; or, if the third positioning result satisfies the pre-set determination condition 3, the determination result includes warning information and the warning level corresponding to the third positioning result; or, if the third positioning result satisfies the pre-set determination condition 3, the determination result includes warning information and error information; or, if the third positioning result satisfies the pre-set determination condition 3, the determination result includes warning information, the warning level corresponding to the third positioning result, and error information. If the third positioning result does not satisfy the pre-set determination condition 3, the determination result includes information that does not require warning, or the determination result does not include any warning information, that is, it selectively includes non-warning information.

[0360] In one possible implementation, the judgment result includes: if the third positioning result does not meet the pre-set judgment conditions, the judgment result includes at least one or more of the following information: warning information, warning level corresponding to the third positioning result, and error information; if the third positioning result meets the pre-set judgment conditions, the judgment result includes non-warning information or does not include warning information, that is, the judgment result selectively includes non-warning information.

[0361] Exemplarily, if the third positioning result does not meet the preset judgment condition 4, the judgment result includes warning information; or, if the third positioning result does not meet the preset judgment condition 4, the judgment result includes the warning level corresponding to the third positioning result; or, if the third positioning result does not meet the preset judgment condition 4, the judgment result includes the above-mentioned error information; or, if the third positioning result does not meet the preset judgment condition 4, the judgment result includes warning information and the warning level corresponding to the third positioning result; or, if the third positioning result does not meet the preset judgment condition 4, the judgment result includes warning information and error information; or, if the third positioning result does not meet the preset judgment condition 4, the judgment result includes warning information, the warning level corresponding to the third positioning result, and error information. If the third positioning result meets the preset judgment condition 4, the judgment result includes information that does not require warning, or the judgment result does not include any warning information, that is, it selectively includes non-warning information.

[0362] In a possible implementation, the above-mentioned pre-set determination condition may include one or more sub-determination conditions, and the above-mentioned alarm level may also include one or more sub-alarm levels; wherein, one sub-alarm level may correspond to one or more sub-determination conditions, for example, satisfying the first sub-determination condition and the second sub-determination condition may determine the first alarm level, or, not satisfying the first sub-determination condition or the second sub-determination condition may determine the first alarm level; or, one or more sub-alarm levels may correspond to one sub-determination condition, for example, satisfying the first sub-determination condition may determine the first alarm level and the second alarm level, and then satisfying the second sub-determination condition may determine the second alarm level, or not satisfying the first sub-determination condition may determine the first alarm level and the second alarm level, and then not satisfying the second sub-determination condition may determine the second alarm level; the determination result includes at least one or more of the following information: information on whether an alarm is required, the sub-alarm level corresponding to the third positioning result, error information, etc.

[0363] For example, taking the proximity between the protection level PL and the alarm limit AL in the confidence-related indicators as an example, the positioning confidence of the working state of the positioning system is estimated to determine whether an alarm is needed. Figure 6As shown, taking the pre-set judgment condition including 3 sub-judgment conditions and the alarm level including 3 sub-alarm levels as an example, the hierarchical alarm mechanism provided by the present application is described. For example, the 3 sub-judgment conditions can be respectively:

[0364] (1) PL>AL;

[0365] (2)AL-PL∈(0,Δ H ];

[0366] (3)AL-PL∈(Δ H ,Δ L ].

[0367] Among them, (1) PL>AL;

[0368] When the positioning confidence of the third positioning result satisfies the first sub-decision condition PL>AL, the working state of the positioning system is "system unavailable". That is, when the protection level PL exceeds the alarm limit AL, the positioning system is not suitable for continuing to provide positioning services due to factors such as too large system positioning error. The positioning system is unavailable (system unavailable). This alarm level can be determined as sub-alarm level 3 (the highest sub-alarm level), i.e., Alarm level 3, which is used to indicate that the positioning system cannot work normally at this time (System unavailable). Among them, the judgment result includes at least one or more of the following information: alarm information, the third sub-alarm level corresponding to the third positioning result, error information, etc.

[0369] (2)AL-PL∈(0,Δ H ];

[0370] When the positioning confidence of the third positioning result satisfies the second sub-decision condition L-PL∈(0,Δ H ], the working state of the positioning system is "high risk state (High risk)". That is, when the protection level PL is close to the alarm limit AL, and the difference with AL does not exceed the first threshold value Δ H When the positioning service provided by the positioning system may be of low accuracy and poor reliability due to factors such as large system positioning errors, the alarm level can be determined as sub-alarm level 2 (the second highest sub-alarm level), i.e., Alarm level 2, which is used to indicate that the positioning system is in a high-risk state and needs to pay special attention to the accuracy of the positioning results or adjust the working state of the positioning system in a timely manner. Among them, the determination result includes at least one or more of the following information: alarm information, the second sub-alarm level corresponding to the third positioning result, error information, etc.

[0371] (3)AL-PL∈(Δ H ,ΔL ].

[0372] When the positioning confidence of the third positioning result satisfies the first sub-decision condition AL-PL∈(Δ H ,Δ L ], the working state of the positioning system is "low risk state". That is, when the protection level PL is close to the alarm limit AL, and the difference with the alarm limit AL exceeds the first threshold Δ H Does not exceed the second threshold Δ L When the positioning system has a small system positioning error, the alarm level can be determined as sub-alarm level 1 (the lowest sub-alarm level), i.e., Alarm level 1, which is used to indicate that the positioning system is in a low-risk state and may need to pay attention to the accuracy of the positioning result or may need to adjust the working state of the positioning system in a timely manner. The determination result includes at least one or more of the following information: alarm information, the first sub-alarm level corresponding to the third positioning result, error information, etc.

[0373] Among them, the alarm limit AL is the horizontal / vertical alarm limit, which is the maximum allowable horizontal / vertical position error. Exceeding this horizontal error indicates that the system is not suitable for the intended application. The value of this indicator is usually pre-set and is related to the specific positioning service. The protection level PL can be obtained by measurement, calculation or other means, which is not limited in this application. The positioning error PE is the error distribution / statistical value obtained by considering multiple error sources. Different positioning error PE values ​​can be obtained according to different positioning methods. The positioning error PE can be obtained by measurement, calculation or other means, which is not limited in this application. The first threshold Δ H , the second threshold Δ L The above parameters are related to the specific positioning service, are pre-set, and can be carried in the QoS parameters of the positioning request.

[0374] For example, the protection level PL, positioning error PE and the proximity of the alarm limit AL in the confidence-related indicators can be used as examples to introduce the hierarchical alarm mechanism provided by the present application, estimate the positioning confidence of the working state of the positioning system, and then determine whether an alarm is needed. Figure 8 As shown, taking the pre-set judgment condition including 2 sub-judgment conditions and the alarm level including 2 sub-alarm levels as an example, the hierarchical alarm mechanism provided by the present application is described. For example, the 2 sub-judgment conditions can be respectively:

[0375] (1)PL <AL<PE;

[0376] (2)PL <PE<AL。

[0377] Among them, (1) PL <AL<PE;

[0378] When the positioning confidence of the third positioning result satisfies the first sub-judgment condition PL < AL < PE, the working state of the positioning system is in the "hazardously operations" state. That is, when the "protection level PL" does not exceed the "alert limit AL", and the "alert limit AL" does not exceed the "positioning error PE", the positioning service provided by the positioning system may have low accuracy and poor reliability due to factors such as large system positioning errors. This warning level can be determined as the sub-warning level 2, that is, Alarm level 2, which is used to indicate that the positioning system is in a high-risk state and special attention needs to be paid to the accuracy of the positioning result or the working state of the positioning system needs to be adjusted in a timely manner. Among them, the determination result includes at least one or more of the following information: warning information, the second sub-warning level corresponding to the third positioning result, error information, etc.

[0379] (2) PL < PE < AL.

[0380] When the positioning confidence of the third positioning result satisfies the second judgment condition PL < PE < AL, the working state of the positioning system is in the "Low risk" state.

[0381] That is, when the "protection level PL" does not exceed the "positioning error PE", and the "positioning error PE" does not exceed the "alert limit AL", the positioning system may have a small system positioning error. This warning level can be determined as the sub-warning level 1, that is, Alarm level 1, which is used to indicate that the positioning system is in a low-risk state and it may be necessary to pay attention to the accuracy of the positioning result or it may be necessary to adjust the working state of the positioning system in a timely manner. Among them, the determination result includes at least one or more of the following information: warning information, the first sub-warning level corresponding to the third positioning result, error information, etc.

[0382] When PE < PL, that is, when the "positioning error PE" of the terminal device does not exceed the error boundary corresponding to the "protection level PL", the working state of the positioning system is in the "nominal operations" state; at this time, the positioning system does not need to give an alarm. The corresponding indication information can optionally include non-alarm information.

[0383] It should be understood that the hierarchical alarm mechanism proposed in this application can also be based on the comparison of other positioning confidence-related parameters, or other corresponding forms of sub-warning levels and sub-judgment conditions, and this application does not make any limitations in this regard.

[0384] It should be understood that in the process of implementing the solution provided by the present application, the error information can be selectively included in the warning information according to different application scenarios or purposes, and the error information generally includes at least one or more of the following: protection level, error source, error value, confidence level, threat model, threat occurrence probability, and failure mode. These parameter values ​​included in the error information are conducive to the terminal device or other devices involved in positioning to take corresponding adjustment measures according to the error information.

[0385] It should be understood that when positioning a terminal device, in addition to the above-mentioned second parameter set and / or positioning assistance data, the terminal device may also position the terminal device based on other auxiliary data obtained from a positioning management device or other devices, and the embodiments of the present application do not specifically limit this.

[0386] Based on the consideration of the positioning reliability control, optionally, the positioning reliability control method provided in the embodiment of the present application further includes the following step S911:

[0387] S911. The terminal device performs positioning error correction according to the third positioning result, and obtains a fourth positioning result after the positioning error correction.

[0388] Optionally, the terminal device may perform positioning error correction on the location information of the terminal device based on the error information contained in the confidence information in the third positioning result, such as parameters such as the error source, the error value, and the positioning error PE, to obtain a fourth positioning result after the positioning error correction. The fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

[0389] Optionally, in an embodiment of the present application, if the above positioning process is not initiated by the terminal device (ie, step S901a is not executed), but is initiated by an access and mobility management device (ie, step S902c is executed) or a third-party device or function such as a 5G CLCCS entity (ie, step S902b is executed), then the positioning method provided in the embodiment of the present application also includes the following steps S912-S915:

[0390] S912: The positioning management device sends a fifth request message to the terminal device. Correspondingly, the terminal device receives the fifth request message from the positioning management device. The fifth request message is used to request the location information and / or confidence information of the terminal device.

[0391] Optionally, the fifth request message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message. That is, the positioning management device may request the terminal device for location information and / or confidence information via LPP message 7. For example, Fig. 9As shown, the LPP message 7 may be, for example, LPP request location information (LPP Request Location Information).

[0392] It should be noted that if the above-mentioned step S911 is not performed, the fifth request message can be used to request a third positioning result that has not been corrected for the positioning error; wherein the third positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes error information and / or alarm information, wherein the error information is related to the positioning confidence, and includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, probability of threat occurrence, failure mode; and the alarm information includes a determination result after comparing the third positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the third positioning result, the above-mentioned error information,

[0393] If the above step S911 is executed, the fifth request message is used to request the fourth positioning result after positioning error correction; wherein the fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction; the confidence information after the positioning error correction includes the error information and / or alarm information after the positioning error correction, wherein the error information is related to the positioning confidence, and includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, failure mode; and the alarm information includes a judgment result after comparing the third positioning result with a pre-set judgment condition, and the judgment result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the fourth positioning result, and the above error information.

[0394] S913: The terminal device sends a fifth response message to the positioning management device. Correspondingly, the positioning management device receives the fifth response message from the terminal device. The fifth response message carries or includes the location information and / or confidence information of the terminal device.

[0395] Optionally, the fifth response message may be carried on an LTE positioning protocol (LTE positioning protocol, LPP) message. That is, the terminal device may send the location information and / or confidence information of the terminal device to the positioning management device via LPP message 8. For example, Fig. 9 As shown, the LPP message 8 can, for example, provide location information for the LPP.

[0396] Among them, if the above-mentioned step S911 is not executed, the location information and / or confidence information of the terminal device carried or contained in the fifth response message may be the location information and / or confidence information of the terminal device after the positioning error is not corrected, that is, the third positioning result; if the above-mentioned step S911 is executed, the location information and / or confidence information of the terminal device carried or contained in the fifth response message may be the location information and / or confidence information of the terminal device after the positioning error is corrected, that is, the fourth positioning result.

[0397] Optionally, different from the method of obtaining the location information and / or confidence information of the terminal device in steps S912-S913, in an embodiment of the present application, the terminal device may actively provide the location information and / or confidence information of the terminal device to the positioning management device without request, that is, when executing the positioning confidence control method provided in this embodiment, step S912 may be omitted, and the embodiment of the present application does not make any specific limitations on this.

[0398] S914: The positioning management device sends the third positioning result or the fourth positioning result to the access and mobility management device. Correspondingly, the access and mobility management device receives the third positioning result or the fourth positioning result from the positioning management device.

[0399] It should be noted that if step S911 is not performed, the access and mobility management device sends a third positioning result to the third-party device or function, and the third positioning result includes the location information and / or confidence information of the terminal device. If step S911 is performed, the access and mobility management device sends a fourth positioning result to the third-party device or function, and the fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error is corrected.

[0400] Optionally, in an embodiment of the present application, if the above positioning process is initiated by a third-party device or function such as a 5GC LCS entity (ie, executing step S702b), the positioning method provided in the embodiment of the present application further includes the following step S915:

[0401] S915. The access and mobility management device sends the third positioning result or the fourth positioning result to the third-party device or function (eg, 5GC LCS entity). Correspondingly, the third-party device or function receives the third positioning result or the fourth positioning result from the access and mobility management device.

[0402] It should be noted that if step S911 is not performed, the access and mobility management device sends a third positioning result to the third-party device or function, and the third positioning result includes the location information and / or confidence information of the terminal device. If step S911 is performed, the access and mobility management device sends a fourth positioning result to the third-party device or function, and the fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error is corrected.

[0403] The above embodiment is a method for controlling the positioning confidence for the UE-based positioning solution, and a hierarchical alarm mechanism is used for positioning errors of different systems to ensure the positioning accuracy in real time and ensure the high reliability of the positioning system. First of all, ensuring the confidence of the positioning system is an important research point in R17. At present, there are almost no evaluation and specific implementation methods for the confidence of the positioning system. This application provides a feasible implementation method for ensuring the positioning confidence of the positioning system. Secondly, this embodiment can adopt a hierarchical alarm mechanism for positioning errors of different systems, instead of issuing a warning only when a confidence crisis occurs. In addition, this embodiment can clearly indicate the source of error in the corresponding alarm information, which helps the positioning system to make directional adjustments and can effectively ensure the confidence of the positioning system. And the terminal device can also perform error correction based on the error information to ensure the positioning accuracy in real time.

[0404] The above describes the method embodiment provided by the embodiment of the present application, and the following describes the device embodiment provided by the present application. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the content not described in detail can be referred to the method embodiment above, and for the sake of brevity, it will not be repeated here.

[0405] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between various devices. It is understandable that each device, such as a positioning management device or a terminal device, includes a hardware structure and / or software module corresponding to each function in order to realize the above functions. Those skilled in the art should be aware that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0406] The embodiment of the present application can divide the functional modules of the positioning management device or the terminal device according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The following is an example of dividing each functional module according to each function.

[0407] Fig.10 The schematic block diagram of the positioning management device 1000 provided in the embodiment of the present application, the positioning management device 1000 can be a positioning management device or a chip. The positioning management device 1000 includes a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 can communicate with the outside, and the processing unit 1020 is used for data processing. The transceiver unit 1010 can also be called a communication interface or a communication unit. The positioning management device 1000 can be used to perform the above Figure 8 or Fig. 9 The actions performed by the positioning management device in the method embodiment are shown.

[0408] The positioning management device 1000 can be used to execute the actions executed by the positioning management device in the above method embodiment. The transceiver unit 1010 is used to execute the transceiver-related operations on the positioning management device side in the above method embodiment, and the processing unit 1020 is used to execute the processing-related operations of the positioning management device in the above method embodiment.

[0409] In one embodiment provided in the present application, the transceiver unit 1010 and the processing unit 1020 are used to execute Figure 8 The related steps performed by the positioning management device in the positioning reliability control method shown are, for example:

[0410] The transceiver unit 1010 is used to receive a first message sent by a terminal device, where the first message includes a first parameter set, and the first parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode.

[0411] The transceiver unit 1010 is further configured to send the first positioning result to the access and mobility management device.

[0412] The transceiver unit 1010 is further configured to send the second positioning result after the positioning error is corrected to the access and mobility management device.

[0413] The transceiver unit 1010 is also used to receive a positioning request sent by the access and mobility management device, where the positioning request includes first indication information related to the positioning confidence, where the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

[0414] The transceiver unit 1010 is also used to receive the first message sent by the terminal device. Before that, the positioning reliability control method also includes: the positioning management device receives a second message sent by the next generation wireless access network device, and the second message contains positioning assistance data related to the location information of the terminal device.

[0415] The processing unit 1020 is configured to obtain a first positioning result according to the first parameter set and / or the positioning assistance data, where the first positioning result includes location information and / or confidence information of the terminal device; the confidence information includes error information and / or warning information, and the warning information includes a determination result after comparing the first positioning result with a preset determination condition, where the determination result includes at least one or more of the following information:

[0416] Information on whether an alarm is needed, the alarm level corresponding to the first positioning result, and error information.

[0417] In one possible implementation, the determination result includes: if the first positioning result meets a preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the first positioning result, and error information; if the first positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or, if the first positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the first positioning result, and error information; if the first positioning result meets the preset determination condition, the determination result selectively includes no warning information.

[0418] In a possible implementation, the preset determination condition includes one or more sub-determination conditions, and the alarm level includes one or more sub-alarm levels; wherein one sub-alarm level corresponds to one or more sub-determination conditions; or, one or more sub-alarm levels correspond to one sub-determination condition.

[0419] The processing unit 1020 is further used to perform positioning error correction according to the first positioning result, and obtain a second positioning result after the positioning error correction, where the second positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

[0420] Exemplarily, the transceiver unit 1010 and the processing unit 1020 may be used to execute Figure 8 The following steps in the illustrated embodiment:

[0421] The transceiver unit 1010 is used to receive a positioning request sent by the access and mobility management device. The positioning request is used to request positioning of the terminal device. The positioning request may be the positioning request in the above step S801a, S801b or S801c.

[0422] The transceiver unit 1010 is further configured to send a first request message to the terminal device, wherein the first request message is used to request the positioning capability of the terminal device.

[0423] The transceiver unit 1010 is further configured to receive a first response message sent by the terminal device. The first response message carries or includes the positioning capability of the terminal device.

[0424] The transceiver unit 1010 is further configured to send a second request message to a next-generation radio access network (NG-RAN). The second request message is used to request positioning assistance data.

[0425] The transceiver unit 1010 is further configured to receive a second response message sent by the next generation radio access network. The second response message carries or includes positioning assistance data provided by the NG-RAN device to the positioning management apparatus.

[0426] The transceiver unit 1010 is further configured to receive a third request message sent by the terminal device. The third request message is used to request positioning assistance data.

[0427] The transceiver unit 1010 is further configured to send a third response message to the terminal device. The third response message carries or includes the positioning assistance data provided by the positioning management device to the terminal device.

[0428] The transceiver unit 1010 is further configured to send a fourth request message to the terminal device. The fourth request message is used to request the first parameter set.

[0429] The transceiver unit 1010 is further configured to receive a fourth response message sent by the terminal device. The fourth response message carries or includes the first parameter set.

[0430] The transceiver unit 1010 is further configured to send the first positioning result or the second positioning result to the access, mobility and management device.

[0431] The processing unit 1020 is used to calculate the position and / or estimate the positioning error of the terminal device according to the first parameter set and / or the positioning assistance data.

[0432] The processing unit 1020 is further configured to perform positioning error correction according to the first positioning result, and obtain a second positioning result after the positioning error correction.

[0433] In another embodiment provided in the present application, the transceiver unit 1010 and the processing unit 1020 are used to execute Fig. 9 The relevant steps performed by the positioning management in the positioning confidence control method shown are, for example:

[0434] The transceiver unit 1010 is used to receive the third positioning result sent by the terminal device.

[0435] The transceiver unit 1010 is also used to receive a fourth positioning result after positioning error correction sent by the terminal device.

[0436] The transceiver unit 1010 is further configured to send a third message to the terminal device, where the third message includes positioning assistance data related to the location information of the terminal device, and the positioning assistance data is received by the positioning management device from the next generation wireless access network device.

[0437] Exemplarily, the transceiver unit 1010 and the processing unit 1020 may be used to execute Fig. 9 The following steps in the illustrated embodiment:

[0438] The transceiver unit 1010 is used to receive a positioning request sent by the access and mobility management device. The positioning request is used to request positioning of the terminal device. The positioning request may be the positioning request in the above step S901a, S901b or S901c.

[0439] The transceiver unit 1010 is further configured to send a first request message to the terminal device, wherein the first request message is used to request the positioning capability of the terminal device.

[0440] The transceiver unit 1010 is further configured to receive a first response message sent by the terminal device. The first response message carries or includes the positioning capability of the terminal device.

[0441] The transceiver unit 1010 is further configured to send a second request message to a next-generation radio access network (NG-RAN). The second request message is used to request positioning assistance data.

[0442] The transceiver unit 1010 is further configured to receive a second response message sent by the next generation radio access network. The second response message carries or includes positioning assistance data provided by the NG-RAN device to the positioning management apparatus.

[0443] The transceiver unit 1010 is further configured to receive a third request message sent by the terminal device. The third request message is used to request positioning assistance data.

[0444] The transceiver unit 1010 is further configured to send a third response message to the terminal device. The third response message carries or includes the positioning assistance data provided by the positioning management device to the terminal device.

[0445] The transceiver unit 1010 is further configured to send a fifth request message to the terminal device. The fifth request message is used to request the location information and / or confidence information of the terminal device.

[0446] The transceiver unit 1010 is further configured to receive a fifth response message sent by the terminal device. The fifth response message carries or includes the location information and / or confidence information of the terminal device.

[0447] The transceiver unit 1010 is further configured to send the third positioning result or the fourth positioning result to the access and mobility management device.

[0448] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional unit, and will not be repeated here.

[0449] It should be understood that Fig.10 This is only an example and not a limitation. The positioning management device including the transceiver unit and the processing unit may not rely on Fig.10 The structure shown.

[0450] When the terminal device 1200 is a chip, the chip includes a transceiver unit and a processing unit, wherein the transceiver unit may be an input / output circuit or a communication interface; and the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.

[0451] In this embodiment, the location management device 1000 is presented in the form of dividing various functional units in an integrated manner. Here, "unit" may refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and / or other devices that can provide the above functions.

[0452] like Fig.11As shown, the embodiment of the present application also provides a positioning management device 1100. The positioning management device 1100 includes a processor 1110, a memory 1120, and a transceiver 1130. The memory 1120 stores a program. The processor 1110 is used to execute the program stored in the memory 1120. The execution of the program stored in the memory 1120 enables the processor 1110 to execute the relevant processing steps in the above method embodiment. The execution of the program stored in the memory 1120 enables the processor 1110 to control the transceiver 1130 to execute the relevant steps of sending and receiving in the above method embodiment. Optionally, the positioning management device 1100 may also only include the processor 1110 and the transceiver 1130, without the memory 1120, and the present application does not limit this.

[0453] As an implementation, the positioning management device 1100 is used to execute the above Figure 8 In the method embodiment shown in FIG. 1 , the actions performed by the location management device are performed. At this time, the execution of the program stored in the memory 1120 causes the processor 1110 to execute the above Figure 8 In the method embodiment shown in FIG. 1 , the processing steps on the location management device side are executed by executing the program stored in the memory 1120, so that the processor 1110 controls the transceiver 1130 to execute the above Figure 8 The receiving and sending steps on the location management device side in the method embodiment shown. Optionally, the location management device 1100 may also only include the processor 1110 and the transceiver 1130, but not the memory 1120, which is not limited in this application.

[0454] As another implementation, the positioning management device 1100 is used to execute the above Fig. 9 In the method embodiment shown in FIG. 1 , the actions performed by the location management device are performed. At this time, the execution of the program stored in the memory 1120 causes the processor 1110 to execute the above Fig. 9 In the method embodiment shown in FIG. 1 , the processing steps on the location management device side are executed by executing the program stored in the memory 1120, so that the processor 1110 controls the transceiver 1130 to execute the above Fig. 9 The receiving and sending steps on the location management device side in the method embodiment shown. Optionally, the location management device 1100 may also only include the processor 1110 and the transceiver 1130, but not the memory 1120, which is not limited in this application.

[0455] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional device, and will not be repeated here.

[0456] The embodiment of the present application further provides a terminal device 1200 , which may be a terminal device or a chip. Fig.12The schematic block diagram of the terminal device 1200 provided in the embodiment of the present application. The terminal device 1200 includes a transceiver unit 1210 and a processing unit 1220. The transceiver unit 1210 can communicate with the outside, and the processing unit 1220 is used to process data. The transceiver unit 1210 can also be called a communication interface or a communication unit. The terminal device 1200 can be used to perform the above Figure 8 or Fig. 9 The actions performed by the terminal device in the method embodiment are shown.

[0457] The terminal device 1200 can be used to execute the actions executed by the terminal device in the above method embodiment. The transceiver unit 1210 is used to execute the transceiver-related operations on the terminal device side in the above method embodiment, and the processing unit 1020 is used to execute the processing-related operations of the terminal device in the above method embodiment.

[0458] In one embodiment provided in the present application, the transceiver unit 1210 and the processing unit 1220 are used to execute Figure 8 The related steps performed by the terminal device in the method for controlling the positioning reliability shown are, for example:

[0459] The transceiver unit 1210 is used to send a first message to the positioning management device, where the first message includes a first parameter set, and the first parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode.

[0460] Exemplarily, the transceiver unit 1210 and the processing unit 1220 may be used to execute Figure 8 The following steps in the illustrated embodiment:

[0461] The transceiver unit 1210 is used to send a positioning request to the access and mobility management device. The positioning request is used to request positioning of the terminal device.

[0462] The transceiver unit 1210 is further configured to receive a first request message sent by the positioning management device. The first request message is used to request the positioning capability of the terminal device.

[0463] The transceiver unit 1210 is further configured to send a first response message to the location management device. The first response message carries or includes the location capability of the terminal device.

[0464] The transceiver unit 1210 is further configured to send a third request message to the positioning management device. The third request message is used to request positioning assistance data.

[0465] The transceiver unit 1210 is further configured to receive a third response message sent by the positioning management device. The third response message carries or includes positioning assistance data provided by the positioning management device to the terminal device.

[0466] The transceiver unit 1210 is further configured to receive a fourth request message sent by the positioning management device. The fourth request message is used to request the first parameter set.

[0467] The transceiver unit 1210 is further configured to send a fourth response message to the positioning management device. The fourth response message carries or includes the first parameter set.

[0468] The transceiver unit 1210 is further configured to receive the first positioning result or the second positioning result sent by the access and mobility management device. The transceiver unit 1210 is further configured to receive a fourth response message sent by the terminal device. The fourth response message carries or includes the first parameter set.

[0469] The transceiver unit 1210 is further configured to send the first positioning result or the second positioning result to the access, mobility and management device.

[0470] The processing unit 1220 is configured to obtain a first parameter set.

[0471] In another embodiment provided in the present application, the transceiver unit 1210 and the processing unit 1220 are used to execute Fig. 9 The relevant steps performed by the terminal device in the method for controlling the positioning reliability shown are, for example:

[0472] The processing unit 1220 is configured to obtain a second parameter set, where the second parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode;

[0473] The processing unit 1220 is also used to obtain a third positioning result based on the second parameter set and / or positioning assistance data, and the third positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes error information and / or alarm information, and the alarm information includes a determination result after comparing the third positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the first positioning result, and error information.

[0474] In a possible implementation, the determination result includes:

[0475] If the third positioning result satisfies the preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the third positioning result, and error information;

[0476] If the third positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or,

[0477] If the third positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: warning information, the warning level corresponding to the third positioning result, and error information;

[0478] If the third positioning result meets the preset determination condition, the determination result selectively includes no warning information.

[0479] In a possible implementation, the preset determination condition includes one or more sub-determination conditions, and the warning level includes one or more sub-warning levels;

[0480] Wherein, one sub-alarm level corresponds to one or more sub-determination conditions; or,

[0481] One or more sub-alarm levels correspond to one sub-determination condition.

[0482] The processing unit 1220 is further used to perform positioning error correction according to the third positioning result, and obtain a fourth positioning result after the positioning error correction, where the fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

[0483] The processing unit 1220 is further configured to obtain a second parameter set, including: obtaining the second parameter set through measurement, or from a next generation wireless access network device, or from a network device that participates in positioning and includes a positioning management component.

[0484] The transceiver unit 1210 is configured to send the third positioning result to the positioning management device.

[0485] The transceiver unit 1210 is further configured to send the fourth positioning result after the positioning error is corrected to the positioning management device.

[0486] The transceiver unit 1210 is also used to send a positioning request to the access and mobility management device, where the positioning request includes first indication information related to the positioning confidence, where the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

[0487] The transceiver unit 1210 is further configured to receive a third message sent by the positioning management device, where the third message includes positioning assistance data related to the location information of the terminal device, and the positioning assistance data is received by the positioning management device from the next generation wireless access network device.

[0488] Exemplarily, the transceiver unit 1210 and the processing unit 1220 may be used to execute Fig. 9 The following steps in the illustrated embodiment:

[0489] The transceiver unit 1210 is used to send a positioning request to the access and mobility management device. The positioning request is used to request positioning of the terminal device.

[0490] The transceiver unit 1210 is further configured to receive a first request message sent by the positioning management device. The first request message is used to request the positioning capability of the terminal device.

[0491] The transceiver unit 1210 is further configured to send a first response message to the location management device. The first response message carries or includes the location capability of the terminal device.

[0492] The transceiver unit 1210 is further configured to send a third request message to the positioning management device. The third request message is used to request positioning assistance data.

[0493] The transceiver unit 1210 is further configured to receive a third response message sent by the positioning management device. The third response message carries or includes positioning assistance data provided by the positioning management device to the terminal device.

[0494] The transceiver unit 1210 is further configured to receive a third request message sent by the terminal device. The third request message is used to request positioning assistance data.

[0495] The transceiver unit 1210 is further configured to receive a fifth request message sent by the positioning management device. The fifth request message is used to request the location information and / or confidence information of the terminal device.

[0496] The transceiver unit 1210 is further configured to send a fifth response message to the location management device. The fifth response message carries or includes the location information and / or confidence information of the terminal device.

[0497] The processing unit 1220 is configured to perform relevant measurements and obtain a second parameter set.

[0498] The processing unit 1220 is further configured to calculate the terminal device positioning and / or estimate the positioning error based on the second parameter set and / or the positioning assistance data.

[0499] The processing unit 1220 is further configured to perform positioning error correction according to the third positioning result, and obtain a fourth positioning result after the positioning error correction.

[0500] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional unit, and will not be repeated here.

[0501] It should be understood that Fig.12 This is only an example and not a limitation. The terminal device including the transceiver unit and the processing unit may not rely on Fig.12 The structure shown.

[0502] When the terminal device 1200 is a chip, the chip includes a transceiver unit and a processing unit, wherein the transceiver unit may be an input / output circuit or a communication interface; and the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.

[0503] In this embodiment, the terminal device 1200 is presented in the form of dividing various functional units in an integrated manner. The "unit" here may refer to a specific ASIC, a circuit, a processor and a memory that executes one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0504] like Fig.13 As shown, the embodiment of the present application further provides a terminal device 1300. The terminal device 1300 includes a processor 1310, a memory 1320, and a transceiver 1330. The memory 1320 stores a program. The processor 1310 is used to execute the program stored in the memory 1320. The execution of the program stored in the memory 1320 enables the processor 1310 to execute the relevant processing steps in the above method embodiment. The execution of the program stored in the memory 1320 enables the processor 1310 to control the transceiver 1330 to perform the relevant steps of sending and receiving in the above method embodiment. Optionally, the terminal device 1300 may also only include the processor 1310 and the transceiver 1330, without the memory 1320, which is not limited in the present application.

[0505] As an implementation, the terminal device 1300 is used to execute the above Figure 8 In the method embodiment shown in FIG. 1 , the terminal device performs the actions performed. At this time, the execution of the program stored in the memory 1320 causes the processor 1310 to perform the above Figure 8 In the processing steps of the terminal device side in the method embodiment shown in the figure, the execution of the program stored in the memory 1320 causes the processor 1310 to control the transceiver 1330 to execute the above Figure 8 The receiving and sending steps on the terminal device side in the method embodiment shown. Optionally, the terminal device 1300 may also only include the processor 1310 and the transceiver 1330 , but not the memory 1320 .

[0506] As another implementation, the terminal device 1300 is used to execute the above Fig. 9 In the method embodiment shown in FIG. 1 , the terminal device performs the actions performed. At this time, the execution of the program stored in the memory 1320 causes the processor 1310 to perform the above Fig. 9 In the processing steps of the terminal device side in the method embodiment shown in the figure, the execution of the program stored in the memory 1320 causes the processor 1310 to control the transceiver 1330 to execute the above Fig. 9 The receiving and sending steps on the terminal device side in the method embodiment shown. Optionally, the terminal device 1300 may also only include the processor 1310 and the transceiver 1330 , but not the memory 1320 .

[0507] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional device, and will not be repeated here.

[0508] The present application also provides a communication system, which at least includes the above Figure 8 or Fig. 9 The positioning management device in the embodiment shown, Figure 8 or Fig. 9 The terminal device in the illustrated embodiment also includes network equipment involved in positioning, access and mobility management equipment, etc.

[0509] The present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a computer, enables the computer to implement the above Figure 8 or Fig. 9 The method shown in the method embodiment is performed by the positioning management device.

[0510] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a computer, the computer implements the above Figure 8 or Fig. 9 The method shown is executed by the terminal device in the method embodiment.

[0511] The present application also provides a computer program product including a computer program, which, when executed by a computer, enables the computer to implement the above Figure 8 or Fig. 9 The method shown in the method embodiment is performed by the positioning management device.

[0512] The present application also provides a computer program product including a computer program, which, when executed by a computer, enables the computer to implement the above Figure 8 or Fig. 9 The method shown is executed by the terminal device in the method embodiment.

[0513] The explanation of the relevant contents and beneficial effects in any of the communication devices provided above can refer to the corresponding method embodiments provided above, and will not be repeated here.

[0514] In the embodiment of the present application, the terminal device, the positioning management device or the network device, etc. include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU) and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system or a windows operating system. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application, as long as it can communicate according to the method provided in the embodiment of the present application by running a program with a code of the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application can be a terminal device, a positioning management device or a network device, or a functional module in a terminal device, a positioning management device or a network device that can call a program and execute a program.

[0515] In addition, various aspects or features of the present application can be implemented as methods, devices or products using standard programming and / or engineering techniques. The "product" of the application method covers a computer program that can be accessed from any computer-readable device, carrier or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0516] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0517] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM), etc.

[0518] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) is integrated in the processor.

[0519] It should be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0520] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0521] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0522] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0523] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0524] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0525] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a readable storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned readable storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0526] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims and / or the specification.

Claims

1. A method for controlling the reliability of a fixed position, characterized in that: include: The positioning management device receives a first message sent by the terminal device, the first message includes a first parameter set, the first parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode; The positioning management device obtains a first positioning result based on the first parameter set and / or positioning assistance data, the first positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes the error information and / or alarm information, the alarm information includes a determination result after comparing the first positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the first positioning result, and the error information.

2. The method according to claim 1, characterized in that The determination results include: If the first positioning result satisfies the preset determination condition, the determination result includes at least one or more of the following information: the warning information, the warning level corresponding to the first positioning result, and the error information; If the first positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or, If the first positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: the warning information, the warning level corresponding to the first positioning result, and the error information; If the first positioning result meets the preset determination condition, the determination result selectively includes no warning information.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: the preset determination condition comprises one or more sub-determination conditions, and the alarm level comprises one or more sub-alarm levels; Wherein, one of the sub-alarm levels corresponds to one or more of the sub-determination conditions; or, One or more of the sub-alarm levels correspond to one of the sub-determination conditions.

4. The method according to any one of claims 1 to 3, characterized in that: The method further includes: the positioning management device sending the first positioning result to an access and mobility management device.

5. The method according to any one of claims 1 to 4, characterized in that: The method also includes: the positioning management device performs positioning error correction according to the first positioning result, and obtains a second positioning result after the positioning error correction, wherein the second positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

6. The method according to claim 5, characterized in that The method further includes: the positioning management device sending the second positioning result to an access and mobility management device.

7. The method according to any one of claims 1 to 6, characterized in that: Before the positioning management device receives the first message sent by the terminal device, the method further includes: The positioning management device receives a positioning request sent by the access and mobility management device, wherein the positioning request includes first indication information related to the positioning confidence, and the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

8. The method according to any one of claims 1 to 7, characterized in that: Before the positioning management device receives the first message sent by the terminal device, the method further includes: The positioning management device receives a second message sent by a next generation wireless access network device, where the second message includes the positioning assistance data related to the location information of the terminal device.

9. The method according to any one of claims 1 to 8, characterized in that: Before the positioning management device receives the first message sent by the terminal device, the method further includes: The positioning management device receives positioning capabilities from the terminal device, where the positioning capabilities are used to indicate whether the terminal device supports control or measurement related to positioning reliability.

10. The method according to claim 9, characterized in that The control or measurement related to the positioning confidence includes one or more of the following: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

11. A method for controlling the reliability of a fixed position, characterized in that: include: The terminal device acquires a second parameter set, where the second parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode; The terminal device obtains a third positioning result based on the second parameter set and / or positioning assistance data, and the third positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes the error information and / or alarm information, and the alarm information includes a determination result after comparing the third positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the first positioning result, and the error information.

12. The method according to claim 11, characterized in that The determination results include: If the third positioning result satisfies the preset determination condition, the determination result includes at least one or more of the following information: the warning information, the warning level corresponding to the third positioning result, and the error information; If the third positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or, If the third positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: the warning information, the warning level corresponding to the third positioning result, and the error information; If the third positioning result meets the preset determination condition, the determination result selectively includes no warning information.

13. The method according to claim 11 or 12, characterized in that: The method further comprises: the preset determination condition comprises one or more sub-determination conditions, and the alarm level comprises one or more sub-alarm levels; Wherein, one of the sub-alarm levels corresponds to one or more of the sub-determination conditions; or, One or more of the sub-alarm levels correspond to one of the sub-determination conditions.

14. The method according to any one of claims 11 to 13, characterized in that: The method further includes: the terminal device sending the third positioning result to a positioning management device.

15. The method according to any one of claims 11 to 14, characterized in that: The method also includes: the terminal device performs positioning error correction according to the third positioning result, and obtains a fourth positioning result after the positioning error correction, and the fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

16. The method according to claim 15, characterized in that The method further includes: the terminal device sending the fourth positioning result to the positioning management device.

17. The method according to any one of claims 11 to 16, characterized in that: Before the terminal device acquires the second parameter set, the method further includes: The terminal device sends a positioning request to the access and mobility management device, and the positioning request includes first indication information related to the positioning confidence, and the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

18. The method according to any one of claims 11 to 17, characterized in that: Before the terminal device acquires the second parameter set, the method further includes: The terminal device receives a third message sent by the positioning management device, wherein the third message includes the positioning assistance data related to the location information of the terminal device, and the positioning assistance data is received by the positioning management device from a next generation wireless access network device.

19. The method according to any one of claims 11 to 18, characterized in that: Before the terminal device acquires the second parameter set, the method further includes: The terminal device sends a positioning capability to the positioning management device, where the positioning capability is used to indicate whether the terminal device supports control or measurement related to positioning reliability.

20. The method according to claim 19, characterized in that The control or measurement related to the positioning confidence includes one or more of the following: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

21. The method according to any one of claims 11 to 20, characterized in that: The terminal device obtains the second parameter set including: the terminal device obtains the second parameter set through measurement, or from the next generation wireless access network device, or from a network device participating in positioning and including a positioning management component.

22. A positioning management device, characterized in that: include: A transceiver unit, configured to receive a first message sent by a terminal device, wherein the first message includes a first parameter set, and the first parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode; A processing unit, used to obtain a first positioning result based on the first parameter set and / or positioning assistance data, the first positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes the error information and / or alarm information, the alarm information includes a determination result after comparing the first positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the first positioning result, and the error information.

23. The positioning management device according to claim 22, characterized in that: The determination results include: If the first positioning result satisfies the preset determination condition, the determination result includes at least one or more of the following information: the warning information, the warning level corresponding to the first positioning result, and the error information; If the first positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or, If the first positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: the warning information, the warning level corresponding to the first positioning result, and the error information; If the first positioning result meets the preset determination condition, the determination result selectively includes no warning information.

24. The positioning management device according to claim 22 or 23, characterized in that: The preset determination condition includes one or more sub-determination conditions, and the alarm level includes one or more sub-alarm levels; Wherein, one of the sub-alarm levels corresponds to one or more of the sub-determination conditions; or, One or more of the sub-alarm levels correspond to one of the sub-determination conditions.

25. The positioning management device according to any one of claims 22 to 24, characterized in that: The transceiver unit is further configured to send the first positioning result to an access and mobility management device.

26. The positioning management device according to any one of claims 22 to 25, characterized in that: The processing unit is also used to perform positioning error correction based on the first positioning result, and obtain a second positioning result after the positioning error correction, wherein the second positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

27. The positioning management device according to claim 26, characterized in that: The transceiver unit is further configured to send the second positioning result to the access and mobility management device.

28. The positioning management device according to any one of claims 22 to 27, characterized in that: Before receiving the first message sent by the terminal device, the transceiver unit is further used to: Receive a positioning request sent by the access and mobility management device, wherein the positioning request includes first indication information related to the positioning confidence, and the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

29. The positioning management device according to any one of claims 22 to 28, characterized in that: Before receiving the first message sent by the terminal device, the transceiver unit is further used to receive a second message sent by the next generation wireless access network device, where the second message includes the positioning assistance data related to the location information of the terminal device.

30. The positioning management device according to any one of claims 22 to 29, characterized in that: Before the positioning management device receives the first message sent by the terminal device, the transceiver unit is also used to obtain the positioning capability from the terminal device, where the positioning capability is used to indicate whether the terminal device supports control or measurement related to positioning reliability.

31. The positioning management device according to claim 30, characterized in that: The control or measurement related to the positioning confidence includes one or more of the following: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

32. A terminal device, characterized in that: include: A processing unit, configured to obtain a second parameter set, wherein the second parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode; The processing unit is also used to: obtain a third positioning result based on the second parameter set and / or positioning assistance data, the third positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes the error information and / or alarm information, the alarm information includes a determination result after comparing the third positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the third positioning result, and the error information.

33. The terminal device according to claim 32, characterized in that: The determination results include: If the third positioning result satisfies the preset determination condition, the determination result includes at least one or more of the following information: the warning information, the warning level corresponding to the third positioning result, and the error information; If the third positioning result does not meet the preset determination condition, the determination result selectively includes no warning information; or, If the third positioning result does not meet the preset determination condition, the determination result includes at least one or more of the following information: the warning information, the warning level corresponding to the third positioning result, and the error information; If the third positioning result meets the preset determination condition, the determination result selectively includes no warning information.

34. The terminal device according to claim 32 or 33, characterized in that: The preset determination condition includes one or more sub-determination conditions, and the alarm level includes one or more sub-alarm levels; Wherein, one of the sub-alarm levels corresponds to one or more of the sub-determination conditions; or, One or more of the sub-alarm levels correspond to one of the sub-determination conditions.

35. The terminal device according to any one of claims 32 to 34, characterized in that: The terminal device further includes a transceiver unit, and the transceiver unit is used to send the third positioning result to the positioning management device.

36. The terminal device according to any one of claims 32 to 35, characterized in that: The processing unit is also used to perform positioning error correction according to the third positioning result to obtain a fourth positioning result after the positioning error correction, and the fourth positioning result includes the location information and / or confidence information of the terminal device after the positioning error correction.

37. The terminal device according to claim 36, characterized in that: The transceiver unit is further configured to send the fourth positioning result to the positioning management device.

38. The terminal device according to any one of claims 32 to 37, characterized in that: Before acquiring the second parameter set, the transceiver unit is further used to: A positioning request is sent to an access and mobility management device, wherein the positioning request includes first indication information related to the positioning confidence, wherein the first indication information is used to indicate one or more of the following information: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

39. The terminal device according to any one of claims 32 to 38, characterized in that: Before acquiring the second parameter set, the transceiver unit is further used to: A third message sent by the positioning management device is received, wherein the third message includes the positioning assistance data related to the location information of the terminal device, and the positioning assistance data is received by the positioning management device from a next generation wireless access network device.

40. The terminal device according to any one of claims 32 to 39, characterized in that: Before acquiring the second parameter set, the transceiver unit is further used to send positioning capabilities to the positioning management device, where the positioning capabilities are used to indicate whether the terminal device supports control or measurement related to positioning reliability.

41. The terminal device according to claim 40, characterized in that The control or measurement related to the positioning confidence includes one or more of the following: alarm limit, confidence risk, reminder time, error source, threat model, threat occurrence probability, failure mode, error value, and confidence level.

42. The terminal device according to any one of claims 32 to 41, characterized in that: The obtaining of the second parameter set includes: the terminal device obtaining the second parameter set through measurement, or from the next generation wireless access network equipment, or from a network device participating in positioning and including a positioning management component.

43. A positioning management device, characterized in that: include: The processor is used to execute the program stored in the memory, and when the program is executed, the positioning management device executes the method as described in any one of claims 1-10.

44. The positioning management device according to claim 43, characterized in that: The memory is located outside the positioning management device.

45. A terminal device, characterized in that: include: A processor is used to execute a program stored in a memory, and when the program is executed, the terminal device executes the method according to any one of claims 11 to 21.

46. ​​The terminal device according to claim 45, characterized in that The memory is located outside the terminal device.

47. A positioning management device, characterized in that: include: An input / output interface, configured to receive a first message sent by a terminal device, wherein the first message includes a first parameter set, wherein the first parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode; A logic circuit is used to obtain a first positioning result based on the first parameter set and / or positioning assistance data, the first positioning result includes the location information and / or confidence information of the terminal device; the confidence information includes the error information and / or alarm information, the alarm information includes a determination result after comparing the first positioning result with a pre-set determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, the alarm level corresponding to the first positioning result, and the error information.

48. A terminal device, characterized in that: include: A logic circuit is used to obtain a second parameter set, wherein the second parameter set includes measurement information and / or error information related to the location information of the terminal device; wherein the error information is related to the positioning confidence, and the error information includes at least one or more of the following information: protection level, error source, error value, positioning error PE, confidence level, threat model, threat occurrence probability, and failure mode; The logic circuit is further used to: obtain a third positioning result according to the second parameter set and / or the positioning assistance data, the third positioning result including the location information and / or confidence information of the terminal device; the confidence information includes the error information and / or the warning information, the warning information includes a determination result after comparing the third positioning result with a preset determination condition, and the determination result includes at least one or more of the following information: information on whether an alarm is required, an alarm level corresponding to the third positioning result, and the error information; The terminal device also includes an input / output interface for performing input / output functions.

49. A computer-readable storage medium, characterized in that A computer program is stored thereon, and when the computer program is executed by a computer, the method according to any one of claims 1 to 10 or claims 11 to 21 is executed.

50. A computer program product, characterized in that The invention comprises a computer program, and when the computer program product is run on a computer, the method according to any one of claims 1 to 10 or claims 11 to 21 is executed.

51. A chip system, characterized in that: include: At least one processor and an interface, wherein the at least one processor is coupled to a memory through the interface, and when the at least one processor executes a computer program or a computer execution instruction in the memory, the method of any one of claims 1-10 or claims 11-21 is executed.

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