Reference device determination method and apparatus, network-side device

Abstract

Embodiments of the present application relate to the field of mobile communication technologies, and disclose a method and apparatus for determining a reference device, and a network-side device; the method for determining a reference device includes: obtaining positioning reference parameters of candidate reference devices; determining a target reference device among the candidate reference devices according to the positioning reference parameters; wherein, the positioning reference parameters are obtained through at least one of the following: receiving the positioning reference parameters sent by the candidate reference devices; instructing a first network-side device to send a first indication message to the candidate reference devices, the first indication message instructing the candidate reference devices to send the positioning reference parameters to the LMF; sending a second indication message to the candidate reference devices through a preset signaling message, the second indication message instructing the candidate reference devices to send the positioning reference parameters to the LMF.

Description

Technical Field

[0001] This application relates to the field of mobile communication technologies, and in particular, to a method and apparatus for determining a reference device, and a network-side device. Background Art

[0002] With the rapid development of the new air interface technology (5th Generation New Radio, 5G NR) in the fifth-generation mobile communication technology, intelligent systems such as the Internet of Things have put forward higher requirements for its location services. Therefore, how to improve the positioning accuracy of a user terminal (UE) has become an urgent problem to be solved. Summary of the Invention

[0003] Embodiments of this application provide a method and apparatus for determining a reference device, and a network-side device, so as to improve the positioning accuracy of positioning a UE in a 5G NR system.

[0004] In a first aspect, embodiments of this application provide a method for determining a reference device, which is applied to a Location Management Function (LMF) network element, and the method includes:

[0005] Obtain positioning reference parameters of candidate reference devices;

[0006] Determine a target reference device among the candidate reference devices according to the positioning reference parameters;

[0007] Wherein, the positioning reference parameters are obtained through at least one of the following:

[0008] Receive the positioning reference parameters sent by the candidate reference devices;

[0009] Instruct a first network-side device to send first indication information to the candidate reference devices, where the first indication information instructs the candidate reference devices to send the positioning reference parameters to the LMF;

[0010] Send second indication information to the candidate reference devices through a preset signaling message, where the second indication information instructs the candidate reference devices to send the positioning reference parameters to the LMF.

[0011] Optionally, the positioning reference parameters include at least one of the following:

[0012] The location parameters of the candidate reference devices and the accuracy indication parameters of the location parameters.

[0013] Optionally, the location parameters include at least one of the following:

[0014] The location estimation value, speed estimation value, device capability parameters, and positioning mode parameters of the candidate reference devices.

[0015] Optionally, the accuracy indication parameter includes at least one of the following:

[0016] The quality indication parameter of the position estimate value, the error range parameter of the position estimate value, the uncertainty parameter of the position estimate value, and the reliability parameter of the positioning method parameter.

[0017] Optionally, if the accuracy indication parameter includes the error range parameter of the position estimate value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0018] Wherein, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution;

[0019] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0020] Optionally, determining the target reference device among the candidate reference devices according to the positioning reference parameter includes:

[0021] If there is one candidate reference device, determine whether the candidate reference device is the target reference device according to the positioning reference parameter and the preset parameter requirements; wherein, the preset parameter requirements include requirements for at least one of the positioning reference parameters;

[0022] If there are at least two candidate reference devices, determine the target reference device among the candidate reference devices according to a preset selection method.

[0023] Optionally, determining the target reference device among the candidate reference devices according to the preset selection method includes at least one of the following:

[0024] Select the target reference device among the candidate reference devices based on the order of the numerical values of the quality indication parameter of the position estimate value from small to large;

[0025] Select the target reference device among the candidate reference devices based on the order of the numerical values of the uncertainty parameter of the position estimate value from small to large;

[0026] Select the target reference device among the candidate reference devices based on the order of the speed estimate value from small to large;

[0027] Select the target reference device among the candidate reference devices based on the order of the numerical values of the device capability parameter of the candidate reference device from small to large;

[0028] Select the target reference device among the candidate reference devices in the order of the numerical values of the reliability parameters based on the positioning method parameters from small to large;

[0029] Select the target reference device among the candidate reference devices based on at least two parameters in the positioning reference parameters.

[0030] Optionally, after determining the target reference device among the candidate reference devices, the method further includes:

[0031] Send positioning assistance data to the target reference device or an adjacent network-side device of the target reference device;

[0032] Receive positioning measurement quantities;

[0033] Locate the target terminal based on the positioning measurement quantities.

[0034] In a second aspect, an embodiment of the present application further provides a parameter processing method, which is applied to a candidate reference device, and the method includes:

[0035] Determine positioning reference parameters;

[0036] Send the positioning reference parameters to a Location Management Function network element (LMF);

[0037] Among them, the positioning reference parameters are sent through at least one of the following:

[0038] The candidate reference device sends autonomously;

[0039] Send when receiving first indication information sent by a first network-side device, where the first indication information is indicated by the LMF for the first network-side device to send;

[0040] Send when receiving a preset signaling message indicated by the LMF to send.

[0041] Optionally, the positioning reference parameters include at least one of the following:

[0042] The location parameter of the candidate reference device and the accuracy indication parameter of the location parameter.

[0043] Optionally, the location parameter includes at least one of the following:

[0044] The location estimate value, speed estimate value, device capability parameter, and positioning method parameter of the candidate reference device.

[0045] Optionally, the accuracy indication parameter includes at least one of the following:

[0046] The quality indication parameter of the position estimation value, the error range parameter of the position estimation value, the uncertainty parameter of the position estimation value, and the reliability parameter of the positioning method parameter.

[0047] Optionally, if the accuracy indication parameter includes the error range parameter of the position estimation value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0048] Wherein, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution;

[0049] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0050] Optionally, if the position parameter includes the position estimation value, the determination of the positioning reference parameter includes:

[0051] If the candidate reference device includes a network-side device, obtain the position estimation value of the network-side device and / or the quality indication parameter of the position estimation value;

[0052] If the candidate reference device includes a terminal device, perform positioning on the terminal device to obtain the position estimation value of the terminal device, and obtain the quality indication parameter of the position estimation value.

[0053] Optionally, the performing positioning on the terminal device to obtain the position estimation value of the terminal device includes:

[0054] Perform positioning on the terminal device according to a preset positioning method to obtain the position estimation value of the terminal device;

[0055] The preset positioning method includes at least one of the following:

[0056] Laser mapping method, UE-based positioning independent of radio access technology (RAT-independent), UE-based positioning based on radio access technology (RAT).

[0057] Optionally, the obtaining the quality indication parameter of the position estimation value includes:

[0058] Determine the quality indication parameter of the position estimation value based on the preset positioning method and / or the position attribute of the position estimation value of the terminal device; wherein, the position attribute includes: the position estimation value indicates a preset position and / or the transceiver point position of the target network-side device.

[0059] Optionally, sending the positioning reference parameter to the Location Management Function Network Element (LMF) includes:

[0060] If the candidate reference device includes a network-side device, send the positioning reference parameter to the Location Management Function Network Element (LMF) based on the New Radio (NR) positioning protocol A signaling;

[0061] If the candidate reference device includes a terminal device, send the positioning reference parameter to the Location Management Function Network Element (LMF) based on the Long-Term Evolution (LTE) positioning protocol signaling.

[0062] Optionally, after sending the positioning reference parameter to the Location Management Function Network Element (LMF), the method includes:

[0063] If the candidate reference device is the target reference device, receive the positioning assistance data sent by the LMF;

[0064] Measure the positioning measurement quantity according to the positioning assistance data, and send the positioning measurement quantity to the LMF.

[0065] In a third aspect, an embodiment of the present application further provides a method for determining a reference device, which is applied to a network-side device. The method includes:

[0066] Receive the third indication information sent by the Location Management Function Network Element (LMF);

[0067] In response to the third indication information, send the first indication information to the candidate reference device. The first indication information instructs the candidate reference device to send the positioning reference parameter to the LMF; the positioning reference parameter is used by the LMF to determine the target reference device among the candidate reference devices.

[0068] In a fourth aspect, an embodiment of the present application further provides a network-side device. The network-side device includes a Location Management Function Network Element (LMF), and the network-side device further includes:

[0069] A memory, a transceiver, and a processor:

[0070] The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0071] Obtain the positioning reference parameter of the candidate reference device;

[0072] Determine the target reference device among the candidate reference devices according to the positioning reference parameter;

[0073] Wherein, the positioning reference parameter is obtained through at least one of the following:

[0074] Receive the positioning reference parameters sent by the candidate reference device;

[0075] Instruct the first network-side device to send first indication information to the candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameters to the LMF;

[0076] Send second indication information to the candidate reference device through a preset signaling message, where the second indication information instructs the candidate reference device to send the positioning reference parameters to the LMF.

[0077] Optionally, the positioning reference parameters include at least one of the following:

[0078] The position parameters of the candidate reference device and the accuracy indication parameters of the position parameters.

[0079] Optionally, the position parameters include at least one of the following:

[0080] The position estimate value, speed estimate value, device capability parameters, and positioning method parameters of the candidate reference device.

[0081] Optionally, the accuracy indication parameters include at least one of the following:

[0082] The quality indication parameter of the position estimate value, the error range parameter of the position estimate value, the uncertainty parameter of the position estimate value, and the reliability parameter of the positioning method parameters.

[0083] Optionally, if the accuracy indication parameters include the error range parameter of the position estimate value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0084] Wherein, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution;

[0085] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0086] Optionally, determining the target reference device among the candidate reference devices according to the positioning reference parameters includes:

[0087] If there is one candidate reference device, determine whether the candidate reference device is the target reference device according to the positioning reference parameters and preset parameter requirements; wherein, the preset parameter requirements include requirements for at least one of the positioning reference parameters;

[0088] If there are at least two candidate reference devices, determine the target reference device among the candidate reference devices according to a preset selection method.

[0089] Optionally, the determining the target reference device among the candidate reference devices according to a preset selection method includes at least one of the following:

[0090] Select the target reference device among the candidate reference devices based on the order of the numerical values of the quality indication parameters of the position estimation value from small to large;

[0091] Select the target reference device among the candidate reference devices based on the order of the numerical values of the uncertainty parameters of the position estimation value from small to large;

[0092] Select the target reference device among the candidate reference devices based on the order of the speed estimation value from small to large;

[0093] Select the target reference device among the candidate reference devices based on the order of the numerical values of the device capability parameters of the candidate reference devices from small to large;

[0094] Select the target reference device among the candidate reference devices based on the order of the numerical values of the reliability parameters of the positioning method parameter from small to large;

[0095] Select the target reference device among the candidate reference devices based on at least two of the positioning reference parameters.

[0096] Optionally, after determining the target reference device among the candidate reference devices, the method further includes:

[0097] Send positioning assistance data to the target reference device or an adjacent network-side device of the target reference device;

[0098] Receive positioning measurement quantities;

[0099] Locate the target terminal based on the positioning measurement quantities.

[0100] In a fifth aspect, an embodiment of the present application further provides a terminal, where the terminal includes:

[0101] A memory, a transceiver, and a processor:

[0102] The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0103] Determine positioning reference parameters;

[0104] Send the positioning reference parameters to a Location Management Function network element (LMF).

[0105] Among them, the positioning reference parameters are sent through at least one of the following:

[0106] The candidate reference device sends autonomously;

[0107] Send when receiving the first indication information sent by the first network-side device, where the first indication information is indicated by the LMF for the first network-side device to send;

[0108] Send when receiving the preset signaling message indicated by the LMF.

[0109] Optionally, the positioning reference parameters include at least one of the following:

[0110] The position parameter of the candidate reference device and the accuracy indication parameter of the position parameter.

[0111] Optionally, the position parameter includes at least one of the following:

[0112] The position estimated value, speed estimated value, device capability parameter, and positioning method parameter of the candidate reference device.

[0113] Optionally, the accuracy indication parameter includes at least one of the following:

[0114] The quality indication parameter of the position estimated value, the error range parameter of the position estimated value, the uncertainty parameter of the position estimated value, and the reliability parameter of the positioning method parameter.

[0115] Optionally, if the accuracy indication parameter includes the error range parameter of the position estimated value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0116] Among them, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution;

[0117] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0118] Optionally, if the position parameter includes the position estimated value, determining the positioning reference parameter includes:

[0119] If the candidate reference device includes a network-side device, obtain the position estimated value of the network-side device and / or the quality indication parameter of the position estimated value;

[0120] If the candidate reference device includes a terminal device, the terminal device is located to obtain a position estimate of the terminal device, and a quality indication parameter of the position estimate is obtained.

[0121] Optionally, the locating the terminal device to obtain a position estimate of the terminal device includes:

[0122] Locating the terminal device according to a preset positioning method to obtain a position estimate of the terminal device;

[0123] The preset positioning method includes at least one of the following:

[0124] Laser mapping method, UE-based positioning independent of radio access technology (RAT-independent), UE-based positioning based on radio access technology (RAT).

[0125] Optionally, the obtaining a quality indication parameter of the position estimate includes:

[0126] Determining a quality indication parameter of the position estimate based on the preset positioning method and / or a position attribute of the position estimate of the terminal device; where the position attribute includes: the position estimate indicates a preset position and / or a transceiver point position of a target network-side device.

[0127] Optionally, the sending the positioning reference parameter to a Location Management Function (LMF) network element includes:

[0128] If the candidate reference device includes a network-side device, sending the positioning reference parameter to the LMF network element based on a New Radio (NR) positioning protocol A signaling;

[0129] If the candidate reference device includes a terminal device, sending the positioning reference parameter to the LMF network element based on a Long-Term Evolution (LTE) positioning protocol signaling.

[0130] Optionally, after the sending the positioning reference parameter to the LMF network element, the method includes:

[0131] If the candidate reference device is a target reference device, receiving positioning assistance data sent by the LMF;

[0132] Measuring a positioning measurement quantity according to the positioning assistance data and sending the positioning measurement quantity to the LMF.

[0133] In a sixth aspect, an embodiment of the present application further provides a network-side device, where the network-side device includes:

[0134] A memory, a transceiver, and a processor:

[0135] A memory for storing computer programs; a transceiver for transceiving data under the control of the processor; a processor for reading the computer programs in the memory and performing the following operations:

[0136] Receiving third indication information sent by a Location Management Function (LMF) network element;

[0137] In response to the third indication information, sending first indication information to a candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameters to the LMF; the positioning reference parameters are used by the LMF to determine a target reference device among the candidate reference devices.

[0138] In a seventh aspect, an embodiment of the present application further provides a reference device determination apparatus applied to a Location Management Function (LMF) network element. The apparatus includes:

[0139] A parameter acquisition module for acquiring positioning reference parameters of candidate reference devices;

[0140] A device determination module for determining a target reference device among the candidate reference devices according to the positioning reference parameters;

[0141] Wherein, the positioning reference parameters are acquired through at least one of the following:

[0142] Receiving the positioning reference parameters sent by the candidate reference device;

[0143] Instructing a first network-side device to send first indication information to the candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameters to the LMF;

[0144] Sending second indication information to the candidate reference device through a preset signaling message, where the second indication information instructs the candidate reference device to send the positioning reference parameters to the LMF.

[0145] In an eighth aspect, an embodiment of the present application further provides a parameter processing apparatus applied to a candidate reference device. The apparatus includes:

[0146] A parameter determination module for determining positioning reference parameters;

[0147] A parameter sending module for sending the positioning reference parameters to a Location Management Function (LMF) network element;

[0148] Wherein, the positioning reference parameters are sent through at least one of the following:

[0149] The candidate reference device autonomously sends them;

[0150] It is sent when receiving the first indication information sent by the first network-side device, where the first indication information is indicated by the LMF to the first network-side device to send;

[0151] It is sent when receiving a preset signaling message indicated by the LMF to send.

[0152] In a ninth aspect, an embodiment of the present application further provides a reference device determination apparatus, which is applied to a network-side device. The apparatus includes:

[0153] An information receiving module, configured to receive third indication information sent by a Location Management Function (LMF) network element;

[0154] An information response module, configured to, in response to the third indication information, send first indication information to a candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameter to the LMF; the positioning reference parameter is used by the LMF to determine a target reference device among the candidate reference devices.

[0155] In a tenth aspect, an embodiment of the present application further provides an electronic device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the steps in the above method are implemented.

[0156] In an eleventh aspect, an embodiment of the present application further provides a processor-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above method are implemented.

[0157] In an embodiment of the present application, the LMF obtains the positioning reference parameter of the candidate reference device; according to the positioning reference parameter, the target reference device among the candidate reference devices is determined; the positioning reference parameter can be automatically sent by the candidate reference device, or obtained through the first indication information and / or the second indication information; in the embodiment of the present application, a method for configuring or selecting a target reference device is provided, and the target reference device is configured or selected through the positioning reference parameter, so as to improve the configuration accuracy or selection accuracy of the target reference device, and further improve the positioning accuracy of positioning the UE in the 5G NR system. BRIEF DESCRIPTION OF THE DRAWINGS

[0158] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description in the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0159] Figure 1Flowchart of the reference device determination method provided by the embodiments of the present application;

[0160] Figure 2 One of the flowcharts of the parameter processing method provided by the embodiments of the present application;

[0161] Figure 3 Another flowchart of the parameter processing method provided by the embodiments of the present application;

[0162] Figure 4 Structural block diagram of the reference device determination device provided by the embodiments of the present application;

[0163] Figure 5 One of the structural block diagrams of the parameter processing device provided by the embodiments of the present application;

[0164] Figure 6 Another structural block diagram of the parameter processing device provided by the embodiments of the present application;

[0165] Figure 7 One of the structural block diagrams of the network-side device provided by the embodiments of the present application;

[0166] Figure 8 Structural block diagram of the terminal provided by the embodiments of the present application;

[0167] Figure 9 Another structural block diagram of the network-side device provided by the embodiments of the present application. Detailed implementation manners

[0168] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0169] In the embodiments of the present application, the term "a plurality of" refers to two or more, and other quantifiers are similar.

[0170] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0171] The embodiments of the present application provide a reference device determination method and device, a parameter processing method and device, and a storage medium, so as to improve the positioning accuracy of positioning a UE in a 5G NR system.

[0172] Among them, the method and the apparatus are based on the same application concept. Since the principles for solving problems by the method and the apparatus are similar, the implementation of the apparatus and the method can be referred to each other, and the repeated parts will not be elaborated here.

[0173] In addition, the technical solutions provided in the embodiments of this application can be applied to multiple systems, especially 5G systems. For example, the applicable systems can be Global System of Mobile Communication (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Long Term Evolution Advanced (LTE-A) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5G New Radio (NR) systems, etc. Both terminal devices and network-side devices are included in these multiple systems. The core network part can also be included in the system, such as Evolved Packet System (EPS), 5G System (5GS), etc.

[0174] The terminal device involved in the embodiments of the present application can be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device can be called a User Equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) via a Radio Access Network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the wireless access network. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA), etc. The wireless terminal device can also be called a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, which is not limited in the embodiments of the present application.

[0175] The network-side device involved in the embodiments of the present application may be a base station, which may include multiple cells that provide services to terminals. Depending on specific application scenarios, the base station may also be referred to as an access point, or may be a device in the access network that communicates with wireless terminal devices through one or more sectors over the air interface, or other names. The network-side device can be used to mutually replace the received airframes and Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network-side device can also coordinate the attribute management of the air interface. For example, the network-side device involved in the embodiments of the present application may be a network-side device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or may be a network-side device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or may also be an evolved network-side device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), or may also be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application do not limit this. In some network architectures, the network-side device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0176] In a mobile communication system, it is necessary to perform uplink and downlink positioning on a user terminal (UE), including positioning methods such as uplink time difference of arrival (DL TDOA), downlink time difference of arrival (UL TDOA), multi-cell round-trip time (Multi-RTT), uplink angle of arrival (UL-AOA), and downlink angle of departure (DL-AOD). In the 5G NR system, with the rapid development of intelligent systems such as the Internet of Things, the 5G NR system needs to provide positioning function services with higher accuracy.

[0177] As Figure 1 shown, an embodiment of this application provides a flowchart of a method for determining a reference device. The method is applied to a Location Management Function (LMF), and the method includes:

[0178] Step 101, obtain the positioning reference parameters of candidate reference devices.

[0179] Among them, the reference device is used for positioning reference of the target UE; optionally, for the serving base station of the UE (or other network-side devices that provide network services for the UE, such as other access network devices), one or more reference devices can be configured for it to provide positioning reference functions when positioning the UE of this base station. When there are candidate reference devices corresponding to the base station, the LMF selects the target reference device among them as the reference device of this base station according to the positioning reference parameters of the candidate reference devices.

[0180] Optionally, the candidate reference device and / or the reference device can be a network-side device or a user-side device. The network-side device is, for example, a base station or other devices in the network, and the user-side device is, for example, a user terminal such as a mobile phone. The candidate reference device and / or the reference device can be a device pre-configured as a reference device, or a device that is not pre-configured but has the ability to be a candidate reference device and / or a reference device.

[0181] Specifically, the positioning reference parameters may include the position parameters of the candidate reference devices and / or the accuracy indication parameters indicating the position parameters, etc. The position parameters are, for example, position measurement data and / or position estimation data. In the LPP protocol (TS 37.355) of NR Rel-16, the signaling for the server to request position measurement data and / or position estimation from the target UE side is defined. Using this signaling, the UE can report the relevant positioning reference parameters it has obtained to the LMF.

[0182] Step 102: Determine the target reference device among the candidate reference devices according to the positioning reference parameters.

[0183] Among them, the positioning reference parameters are obtained by at least one of the following methods 1 to 3:

[0184] Method 1: Receive the positioning reference parameters sent by the candidate reference device.

[0185] The candidate reference device can automatically report the positioning reference parameters to the LMF.

[0186] Method 2: Instruct a first network-side device to send first indication information to the candidate reference device, and the first indication information instructs the candidate reference device to send the positioning reference parameters to the LMF.

[0187] For example, the first network-side device includes a base station. The LMF sends indication signaling to the base station, which is triggered by broadcast signaling or Radio Resource Control (RRC) dedicated signaling. The broadcast signaling can be sent through the System Information Block (SIB). After receiving the indication signaling sent by the LMF, the base station sends a broadcast message or RRC signaling to all UEs within its coverage area, requesting all candidate reference devices (or reference devices) to send their positioning reference parameters to the LMF. Among them, a group of UEs can be pre-configured as candidate reference devices.

[0188] Method 3: Send second indication information to the candidate reference device through a preset signaling message, and the second indication information instructs the candidate reference device to send the positioning reference parameters to the LMF.

[0189] The LMF may send a preset signaling message as a dedicated message to one or more candidate reference devices, and the preset signaling message is used to instruct the UE to send the positioning reference parameter to the LMF; for example: the LMF triggers all UEs within the coverage of the associated base station of the LMF to first perform a UE-based positioning (UE-based positioning, for example: UL-based DL-TDOA or UE-based DL-AOD), and let all candidate UEs report the positioning reference parameter of the UE; optionally, the preset signaling message may be an LTE Positioning Protocol (LPP) signaling message.

[0190] After the LMF receives the positioning reference parameters of the candidate reference devices, it selects the optimal target reference device according to the positioning reference parameters, and / or determines whether the positioning reference parameters meet the requirements of being a target reference device according to a preset judgment rule. It can be understood that in the embodiments of the present application, for a serving base station, the target reference device may include one or at least two.

[0191] After determining the target reference device, when positioning other user devices subsequently, the known location information of the target reference device may be used as reference information, for example, for estimating and / or correcting the transmission and reception errors of the positioning signal, and the positioning signal may be the positioning signal of the base station and / or the Transmission-Reception Point (TRP), so as to improve the positioning accuracy.

[0192] In the embodiments of the present application, the LMF obtains the positioning reference parameters of the candidate reference devices; according to the positioning reference parameters, determines the target reference device among the candidate reference devices; the positioning reference parameters may be automatically sent by the candidate reference devices, or obtained through the first indication information and / or the second indication information; in the embodiments of the present application, a method for configuring or selecting a reference device is provided, and the reference device is configured or selected through the positioning reference parameters, so as to improve the configuration accuracy or selection accuracy of the target reference device, and further improve the positioning accuracy of positioning the UE in the 5G NR system.

[0193] Moreover, during the subsequent positioning process, the location information of the target reference device can be referred to, which can further improve the positioning accuracy of positioning the UE.

[0194] Optionally, in the embodiments of the present application, the positioning reference parameter includes at least one of the following:

[0195] The location parameter of the candidate reference device and the accuracy indication parameter of the location parameter.

[0196] Among them, the position parameter is used to indicate the position information of the candidate reference device, such as the position estimation value and the position solution value; optionally, the position parameter includes at least one of the following:

[0197] The position estimation value, speed estimation value, device capability parameter, and positioning method parameter of the candidate reference device; among them, the device capability parameter is used to represent the comprehensive capability of the candidate reference device or the capability as a reference device, such as the UE network capability and the UE radio access capability. During the process of transmitting the device capability parameter, 1-bit signaling can be used to transmit the device capability parameter. The positioning method parameter is used to represent the positioning method of the device, for example: different UE-based positioning methods, including: UL-based DL-TDOA, UE-based DL-AOD.

[0198] Optionally, in the embodiments of the present application, the accuracy indication parameter includes at least one of the following:

[0199] The quality indication parameter of the position estimation value, the error range parameter of the position estimation value, the uncertainty parameter of the position estimation value, and the reliability parameter of the positioning method parameter.

[0200] Among them, the quality indication parameter indicates the quality of the position corresponding to the position estimation value as the position of the target reference device; the error range parameter represents the error range between the position estimation value and the true position value; the uncertainty parameter of the position estimation value indicates the degree of uncertainty of the position corresponding to the position estimation value; the reliability parameter of the positioning method parameter indicates the reliability degree of the positioning method corresponding to the positioning method parameter.

[0201] Optionally, for different position parameters, their accuracy indication parameters can be preset; for example, the specific values of the accuracy indication parameters corresponding to each position parameter are preset in advance.

[0202] In an alternative embodiment, if the accuracy indication parameter includes the error range parameter of the position estimation value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0203] Among them, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution.

[0204] The error value indicates the optimal estimate of the uncertainty corresponding to the position solution value; the error resolution indicates the quantization step of the error value.

[0205] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0206] It is understandable that in the embodiments of the present application, the "measured quantity" represents the "measured value", that is, the result obtained from the measurement. That is, the "positioning measured quantity" refers to the "measured value of the positioning measurement"; the second error is the error of the position solution value and / or the positioning measured quantity. For example, the error value based on the 1sigma or 3sigma criterion (where sigma represents the standard deviation of the measured quantity); the variance value; the probability that the error of the position solution value and / or the positioning measured quantity is within a certain error range at the [X%] confidence level, etc. Wherein, the value range of X is from 0 to 100, and the candidate values are 80, 90, 95, etc.

[0207] In an alternative embodiment, determining the target reference device among the candidate reference devices according to the positioning reference parameters includes Case 1 and Case 2:

[0208] Case 1, if there is only one candidate reference device, determine whether the candidate reference device is the target reference device according to the positioning reference parameters and the preset parameter requirements; wherein, the preset parameter requirements include requirements for at least one of the positioning reference parameters.

[0209] For example, preset the parameter requirements, and the preset parameter requirements include requirements for at least one of the positioning reference parameters; after obtaining the positioning reference parameters, judge whether the candidate reference device meets the requirements of being the target reference device according to the preset parameter requirements; if it meets, the candidate reference device can be used as the target reference device; if it does not meet, continue to poll and judge subsequently.

[0210] Case 2, if there are at least two candidate reference devices, determine the target reference device among the candidate reference devices according to the preset selection method. Among the preset selection methods, it may include selecting according to one of the positioning reference parameters, and may also include selecting according to multiple of the positioning reference parameters, such as using the method of weighted summation.

[0211] In an alternative embodiment, the above Case 2 includes at least one of the following Cases 3 to 8:

[0212] Case 3, select the target reference device among the candidate reference devices based on the order of the numerical values of the quality indication parameters of the position estimate value from small to large.

[0213] Based on the order of the quality indication parameters of the position estimate values of the candidate reference devices from high to low, preferentially select the one with a higher quality of the position estimate value as the target reference device to ensure a higher quality of the location where the target reference device is located.

[0214] Case 4, select the target reference device among the candidate reference devices based on the order of the numerical values of the uncertainty parameters of the position estimate value from small to large.

[0215] Based on the ascending order of the numerical values of the uncertainty parameters of the position estimation values of the candidate reference devices, preferentially select the candidate reference device with a smaller uncertainty of the position estimation value as the target reference device, so as to improve the certainty of the position estimation value of the target reference device.

[0216] In Case Five, select the target reference device from the candidate reference devices based on the ascending order of the speed estimation values.

[0217] Based on the ascending order of the numerical values of the uncertainty parameters of the position estimation values of the candidate reference devices, preferentially select the candidate reference device with a smaller uncertainty of the position estimation value as the target reference device.

[0218] In Case Six, select the target reference device from the candidate reference devices based on the ascending order of the numerical values of the device capability parameters of the candidate reference devices.

[0219] Preferentially select the candidate reference device with stronger device capabilities as the target reference device.

[0220] In Case Seven, select the target reference device from the candidate reference devices based on the ascending order of the numerical values of the reliability parameters of the positioning method parameters.

[0221] Based on the ascending order of the numerical values of the reliability parameters of the positioning method parameters, preferentially select the candidate reference device with a higher reliability parameter as the target reference device.

[0222] In Case Eight, select the target reference device from the candidate reference devices based on at least two of the positioning reference parameters.

[0223] For example, select the uncertainty parameter of the position estimation value and the speed estimation value in the positioning reference parameters, and according to the preset weights, perform weighted summation on the two to obtain a comprehensive weight value, and select the candidate reference device with a higher comprehensive weight value as the target reference device, so as to achieve multi-dimensional selection of the target reference device.

[0224] In an optional embodiment, after determining the target reference device from the candidate reference devices, the method further includes:

[0225] Send positioning assistance data to the target reference device or the adjacent network-side device of the target reference device;

[0226] Receive positioning measurement quantities;

[0227] Based on the positioning measurement quantities, perform positioning on the target terminal.

[0228] For example, for downlink positioning or uplink-downlink joint positioning, the LMF sends the downlink positioning assistance data obtained from the serving base station (the serving base station of the device to be located) and the neighboring base stations of the serving base station to the target reference device or the neighboring base station; for uplink positioning or uplink-downlink joint positioning, the LMF notifies the neighboring base stations of the UE of the uplink positioning assistance data obtained from the serving base station.

[0229] For downlink positioning or uplink-downlink joint positioning, the LMF receives the downlink positioning measurement quantities reported by the target reference device and the non-target reference device. The positioning measurement quantities include the reference signal time difference (RSTD) or the UE transceiver time difference, etc.; for uplink positioning or uplink-downlink joint positioning, the LMF receives the uplink positioning measurement quantities reported by the serving base station and the neighboring base stations. The positioning measurement quantities include the relative arrival time of the link (RTOA) or the base station transceiver time difference.

[0230] Finally, based on the positioning measurement quantities, as well as the positions of the target reference device, the base station, and / or the TRP position that have been obtained in advance, position calculation is performed to locate the target terminal.

[0231] In the embodiments of the present application, the LMF obtains the positioning reference parameters of the candidate reference devices; according to the positioning reference parameters, the target reference device among the candidate reference devices is determined; the positioning reference parameters can be automatically sent by the candidate reference devices, or obtained through the first indication information and / or the second indication information; in the embodiments of the present application, a method for configuring or selecting reference devices is provided, and the reference devices are configured or selected through the positioning reference parameters, so as to improve the configuration accuracy or selection accuracy of the target reference device, and further improve the positioning accuracy of the UE in the 5G NR system. And subsequently, during the positioning process, the position information of the target reference device can be referred to, which can further improve the positioning accuracy of the UE.

[0232] See Figure 2 , the embodiments of the present application also provide a parameter processing method, which is applied to candidate reference devices. Optionally, the candidate reference devices and / or the reference devices can be network-side devices or user-side devices. Network-side devices such as base stations or other devices in the network, and user-side devices such as user terminals like mobile phones. The candidate reference devices and / or the reference devices can be devices pre-configured as reference devices, or devices that are not pre-configured but have the ability to be candidate reference devices and / or reference devices.

[0233] The method includes:

[0234] Step 201, determine the positioning reference parameters.

[0235] Among them, the reference device is used to provide positioning reference for the target UE. Optionally, for the serving base station of the UE (or other network-side devices that provide network services for the UE, such as other access network devices), one or more reference devices can be configured for it to provide positioning reference functions when positioning the UE of this base station. When there are candidate reference devices corresponding to the base station, the LMF selects the target reference device from among them as the reference device of this base station according to the positioning reference parameters of the candidate reference devices.

[0236] The positioning reference parameters may include the position parameters of the candidate reference devices and / or accuracy indication parameters indicating the position parameters, etc. The position parameters are, for example, position measurement data and / or position estimation data. In the LPP protocol (TS37.355) of NR Rel-16, the signaling for the server to request position measurement data and / or position estimation from the target UE side is defined. Using this signaling, the UE can report the relevant positioning reference parameters it has obtained to the LMF.

[0237] Step 202, sending the positioning reference parameters to the Location Management Function network element LMF;

[0238] Among them, the positioning reference parameters are sent through at least one of the following methods four to six:

[0239] Method four: The candidate reference device sends autonomously.

[0240] The candidate reference device can automatically report the positioning reference parameters to the LMF.

[0241] Method five: Send when receiving the first indication information sent by the first network-side device, and the first indication information is indicated by the LMF to the first network-side device to send.

[0242] For example, the first network-side device includes a base station. The LMF sends an indication signaling to the base station, which is triggered by broadcast signaling or RRC dedicated signaling. The broadcast signaling can be sent through system messages. After receiving the indication signaling sent by the LMF, the base station sends the first indication information to all UEs within its coverage area, requesting all candidate reference devices (or reference devices) to send their positioning reference parameters to the LMF. When the candidate reference device receives the first indication information, it sends the positioning reference parameters to the LMF.

[0243] Method six: Send when receiving the preset signaling message sent by the LMF.

[0244] The LMF may send a preset signaling message as a dedicated message to one or more candidate reference devices, and the preset signaling message is used to instruct the UE to send the positioning reference parameter to the LMF; for example: the LMF triggers all UEs within the coverage of the associated base station of the LMF to first perform a UE-based positioning (UE-based positioning, such as UL-based DL-TDOA or UE-based DL-AOD), and let all candidate UEs report the positioning reference parameter of the UE; optionally, the preset signaling message may be an LPP signaling message, and when the candidate reference device receives the LPP signaling message, it sends the positioning reference parameter to the LMF.

[0245] After the candidate reference device sends the positioning reference parameter to the LMF, the LMF selects the optimal target reference device according to the positioning reference parameter, and / or determines whether the positioning reference parameter meets the requirements of being a target reference device according to a preset judgment rule. It can be understood that in the embodiments of the present application, for a serving base station, the target reference device may include one or at least two.

[0246] After determining the target reference device, when positioning other user devices subsequently, the known location information of the target reference device may be used as reference information, for example, for estimating and / or correcting the transmission and reception errors of the positioning signal, and the positioning signal may be the positioning signal of the base station and / or the Transmission-Reception Point (TRP), so as to improve the positioning accuracy.

[0247] In the embodiments of the present application, the candidate reference device determines the positioning reference parameter; sends the positioning reference parameter to the Location Management Function network element (LMF); the positioning reference parameter may be automatically sent by the candidate reference device, or obtained through the first indication information and / or the second indication information; in the embodiments of the present application, a method for configuring or selecting a reference device is provided, and the LMF configures or selects a reference device through the positioning reference parameter, improves the configuration accuracy or selection accuracy of the target reference device, and further improves the positioning accuracy of positioning the UE in the 5G NR system.

[0248] Optionally, in the embodiments of the present application, the positioning reference parameter includes at least one of the following:

[0249] The location parameter of the candidate reference device and the accuracy indication parameter of the location parameter.

[0250] Among them, the location parameter is used to indicate the location information of the candidate reference device, such as the location estimate value and the location solution value; optionally, the location parameter includes at least one of the following:

[0251] The position estimation value, speed estimation value, device capability parameter, and positioning method parameter of the candidate reference device; wherein, the device capability parameter is used to represent the comprehensive capability of the candidate reference device or the capability as a reference device, such as UE network capability and UE radio access capability. During the process of transmitting the device capability parameter, 1-bit signaling can be used to transmit the device capability parameter. The positioning method parameter is used to represent the positioning method of the device, for example: different UE-based positioning methods, including: UL-based DL-TDOA, UE-based DL-AOD.

[0252] Optionally, in the embodiments of the present application, the accuracy indication parameter includes at least one of the following:

[0253] The quality indication parameter of the position estimation value, the error range parameter of the position estimation value, the uncertainty parameter of the position estimation value, and the reliability parameter of the positioning method parameter.

[0254] Among them, the quality indication parameter indicates the quality of the position corresponding to the position estimation value as the position of the target reference device; the error range parameter represents the error range between the position estimation value and the true position value; the uncertainty parameter of the position estimation value indicates the degree of uncertainty of the position corresponding to the position estimation value; the reliability parameter of the positioning method parameter indicates the reliability degree of the positioning method corresponding to the positioning method parameter.

[0255] Optionally, for different position parameters, their accuracy indication parameters can be preset in advance; for example, the specific values of the accuracy indication parameters corresponding to each position parameter are preset in advance.

[0256] In an alternative embodiment, if the accuracy indication parameter includes the error range parameter of the position estimation value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0257] Among them, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution.

[0258] The error value indicates the optimal estimated value of the uncertainty corresponding to the position solution value; the error resolution indicates the quantization step of the error value.

[0259] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0260] It is understandable that in the embodiments of the present application, "measurement quantity" represents "measured quantity value", that is, the result obtained by measurement, that is, "positioning measurement quantity" refers to "positioning measured quantity value"; the second error is the error of the position solution value and / or the positioning measurement quantity, for example: the error value based on the 1sigma or 3sigma criterion (where sigma represents the standard deviation of the measurement quantity); the variance value; the probability that the error of the position solution value and / or the positioning measurement quantity is within a certain error interval at the [X%] confidence level, where the value range of X is from 0 to 100, and the candidate values are 80, 90, 95, etc.

[0261] In an alternative embodiment, if the position parameter includes the position estimated value, determining the positioning reference parameter includes:

[0262] If the candidate reference device includes a network-side device, obtain the position estimated value of the network-side device and / or the quality indication parameter of the position estimated value.

[0263] If the candidate reference device includes a terminal device, perform positioning on the terminal device to obtain the position estimated value of the terminal device, and obtain the quality indication parameter of the position estimated value.

[0264] If the candidate reference device includes a network-side device, for example, when the reference device is a base station with a pre-known position, directly obtain the position estimated value of the base station and / or the quality indication parameter of the position estimated value.

[0265] If the candidate reference device includes a terminal device, for example, when the reference device is a UE, perform positioning on the terminal device to obtain the position estimated value of the terminal device, and obtain the quality indication parameter of the position estimated value; optionally, performing positioning on the terminal device to obtain the position estimated value of the terminal device includes:

[0266] Perform positioning on the terminal device according to a preset positioning method to obtain the position estimated value of the terminal device;

[0267] The preset positioning method includes at least one of the following:

[0268] Laser mapping method, UE-based positioning independent of radio access technology (RAT-independent), UE-based positioning based on radio access technology (RAT).

[0269] RAT-independent UE-based positioning, such as Global Navigation Satellite System (GNSS) positioning, Bluetooth positioning, WiFi positioning, and Ultra Wide Band (UWB) positioning; RAT-based positioning, such as downlink time difference of arrival positioning or downlink angle of departure positioning.

[0270] In an alternative embodiment, the obtaining of the quality indication parameter of the position estimate value includes:

[0271] Determining the quality indication parameter of the position estimate value based on the preset positioning method and / or the position attribute of the position estimate value of the terminal device; wherein, the position attribute includes: the position estimate value indicates a preset position and / or the transceiver point position of the target network side device.

[0272] For the quality indication parameter of the position estimate value, quality indication parameters corresponding to different preset positioning methods and / or position attributes are preset in advance.

[0273] Taking the position attribute as an example, for a position attribute being a preset position, such as a terminal placed in a known position in advance, its corresponding quality indication parameter is higher; or, when the position estimate value is the preset transceiver point position, its corresponding quality indication parameter is higher. For the preset positioning method, since the positioning accuracies of different positioning methods are different, different quality indication parameters corresponding to different positioning methods, for example, the GNSS positioning method is higher than positioning methods such as Bluetooth, WiFi, and UWB.

[0274] As an example, four levels of quality indication parameters are preset in advance. For a terminal placed in a known position in advance and a position estimate value being the preset transceiver point position, the corresponding level is the first level (highest); the GNSS positioning method corresponds to the second level; positioning methods such as downlink time difference of arrival and downlink arrival time correspond to the third level; positioning methods such as Bluetooth, WiFi, and UWB correspond to the fourth level.

[0275] In an alternative embodiment, the sending of the positioning reference parameter to the Location Management Function (LMF) network element includes:

[0276] If the candidate reference device includes a network side device, sending the positioning reference parameter to the Location Management Function (LMF) network element based on the New Radio (NR) positioning protocol A signaling (NR PPa signaling);

[0277] If the candidate reference device includes a terminal device, sending the positioning reference parameter to the Location Management Function (LMF) network element based on the Long Term Evolution (LTE) positioning protocol signaling (LPP signaling).

[0278] In an alternative embodiment, after sending the positioning reference parameters to the Location Management Function network element (LMF), the method includes:

[0279] If the candidate reference device is the target reference device, receive the positioning assistance data sent by the LMF;

[0280] Measure positioning measurement quantities according to the positioning assistance data, and send the positioning measurement quantities to the LMF.

[0281] For example, for downlink positioning, the LMF sends the downlink positioning assistance data obtained from the serving base station (the serving base station of the device to be located) and the neighboring base stations of the serving base station to the target reference device, and the target reference device receives the positioning assistance data; the positioning assistance data is, for example, RSTD or UE transceiver time difference, etc.

[0282] After receiving the positioning assistance data, the target reference device measures positioning measurement quantities according to the positioning assistance data, and sends the positioning measurement quantities to the LMF; the positioning measurement quantities are, for example, RTOA or base station transceiver time difference; finally, the LMF performs position calculation based on the positioning measurement quantities, and the pre-acquired position of the target reference device, the position of the base station and / or the TRP position, to locate the target terminal.

[0283] In the embodiments of the present application, the candidate reference device determines the positioning reference parameters; sends the positioning reference parameters to the Location Management Function network element (LMF); the positioning reference parameters can be automatically sent by the candidate reference device, or obtained through the first indication information and / or the second indication information; in the embodiments of the present application, a method for configuring or selecting a reference device is provided, and the LMF configures or selects a reference device through the positioning reference parameters, improving the configuration accuracy or selection accuracy of the target reference device, and further improving the positioning accuracy of positioning the UE in the 5G NR system.

[0284] See Figure 3 , the embodiments of the present application further provide a method for determining a reference device, which is applied to a network-side device, and the network-side device may be a base station, such as the serving base station of a non-reference device.

[0285] The method includes:

[0286] Step 301, receive the third indication information sent by the Location Management Function network element (LMF).

[0287] Among them, the third indication information is sent by the LMF as an indication signaling, for example, sent through broadcast signaling or RRC dedicated signaling, and the broadcast signaling can be sent through SIB messages.

[0288] Step 302: In response to the third indication information, send first indication information to a candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameter to the LMF; the positioning reference parameter is used by the LMF to determine a target reference device among the candidate reference devices.

[0289] After the base station receives the third indication information sent by the LMF, it sends the first indication information to all candidate reference devices within its coverage area. The first indication information can be sent through a broadcast message or RRC signaling, requesting all candidate reference devices (or reference devices) to send their positioning reference parameters to the LMF. After the LMF receives the positioning reference parameters of the candidate reference devices, it selects the optimal target reference device based on the positioning reference parameters and / or determines whether the positioning reference parameters meet the requirements for being a target reference device according to a preset judgment rule.

[0290] After the LMF determines the target reference device, when positioning other user equipment subsequently, the known location information of the target reference device can be used as reference information, for example, to estimate and / or correct the transmission and reception errors of positioning signals. The positioning signals can be the positioning signals of the base station and / or the transceiver point TRP, so as to improve the positioning accuracy.

[0291] In the embodiments of the present application, the network-side device receives the third indication information sent by the Location Management Function network element (LMF), and in response to the third indication information, sends first indication information to the candidate reference device. The first indication information instructs the candidate reference device to send the positioning reference parameter to the LMF, so that the LMF determines the target reference device among the candidate reference devices according to the positioning reference parameter. In the embodiments of the present application, a method for configuring or selecting a reference device is provided, and the reference device is configured or selected through the positioning reference parameter, so as to improve the configuration accuracy or selection accuracy of the target reference device, and further improve the positioning accuracy of positioning the UE in the 5G NR system.

[0292] As a first example, taking the candidate reference device as a user UE and the network-side device (the first network-side device) as a base station, and taking the downlink positioning of the target UE as an example, the LMF, the user UE, and the base station respectively execute the following processes:

[0293] 1. The LMF executes the following steps 111 to 115:

[0294] Step 111: The LMF triggers or configures the reference device through at least one of the following methods 1 to 3.

[0295] Method 1: The LMF receives the automatic reporting of the candidate reference device.

[0296] The reported content includes: the candidate reference device capability parameters (used to determine whether the candidate reference device has the ability to be a reference device), the position estimation value and the speed estimation value, and the accuracy indication parameters of the position estimation value and the speed estimation value (the accuracy indication parameters include reliability level, error range, quality indication, etc.). The above reported quantities are used for the LMF to select a reference device based on certain criteria when there are multiple candidate reference devices.

[0297] Method 2: The LMF sends an indication signaling to the base station, which is triggered by the base station through broadcast signaling (SIB message) or RRC dedicated signaling. The serving gNB sends the first indication information to all UEs within its coverage area, requesting all (or pre-configured) candidate reference devices (including UEs with the ability to be a reference device) to receive DLPRS according to the requirements and configurations of the first indication information and send the measured values obtained by measurement together with their location information to the LMF. The broadcast message or RRC signaling may also request the pre-configured reference device to send UL SRS-POS. SRS is the sounding reference signal, and SRS-POS represents the SRS signal for positioning. Among them, a group of devices can be pre-configured as reference devices.

[0298] Method 3: Triggered by a dedicated pre-set signaling message from the LMF.

[0299] The LMF can send a dedicated message (or extend the existing LPP signaling message: provide UE capability request message, provide positioning assistance data message, or define a new LPP signaling message) to one or more candidate reference devices. The pre-set signaling message is used to indicate whether a certain device is selected as a reference device and request the reference device to report together with its location coordinate information and positioning measurement quantities. For example, the LMF triggers all UEs with the ability to be a reference device within the coverage area of the base station associated with the LMF to first perform a UE-based positioning, so that all candidate UEs report the position estimation value and speed estimation value of the UE, as well as the uncertainty.

[0300] Step 112: When there are multiple candidate reference devices, the LMF selects one or more reference devices based on any one of the following criteria or a combination of criteria.

[0301] Criterion 1: Select in the order from high to low of the quality indication of the position estimation value reported by the UE (or from small to large of the uncertainty);

[0302] Criterion 2: Select in the order from small to large of the speed estimation value reported by the UE, and preferentially select the UE with a UE speed of 0 (i.e., the UE is stationary);

[0303] Criterion 3: Select in the order from high to low of the UE capability levels reported by the UE, and preferentially select the UE with the strongest UE capability as the reference device;

[0304] Criterion 4: Select in the order from high to low of the accuracy and reliability levels corresponding to different UE-based positioning methods reported by the UE.

[0305] Step 113, the LMF notifies the candidate reference device of the downlink positioning assistance data obtained from the serving base station and adjacent base stations.

[0306] Among them, the message sent by the LMF to the reference device may include configuration information for measurement reporting, including: the content of positioning measurement quantities (downlink RSTD and UE transceiver time difference, etc.), reporting timing, and reporting method (periodic or aperiodic reporting).

[0307] Step 114, the LMF receives the positioning measurement quantities (RST, UE transceiver time difference, etc.) reported by the reference device and non-reference devices.

[0308] Step 115, the LMF performs position calculation based on the downlink positioning measurement quantities (RSTD and UE transceiver time difference, etc.) obtained in Step 114, as well as the position of the reference device and the position of the base station / TRP obtained in advance.

[0309] For example, based on real-time double difference or one-time single difference processing, high-precision target UE position information is obtained.

[0310] Second, the candidate reference device (user UE) performs the following Steps 121 to 124:

[0311] Step 121: The candidate reference device calculates a position estimate value based on different positioning schemes, and an accuracy indication parameter corresponding to the position estimate value.

[0312] Among them, the positioning schemes include pre-known or calibrated, laser mapping acquisition, RAT-independent positioning schemes (GNSS positioning, Bluetooth, WiFi, UWB, etc.), and UE-based DL-TDOA+UE-based DL-AOD positioning defined by 5G NR.

[0313] The position estimate value can be in the form of position coordinates, and the position coordinates include the following two options, which can be based on the position coordinates defined by the current 3GPP TS 37.355:

[0314] Option 1: (x, y, z) in the GCS coordinate system, where Option 1 uses the Cartesian coordinate system;

[0315] Option 2: (north-south hemisphere indication, latitude, longitude) in the GCS coordinate system, where Option 2 uses the spherical coordinate system.

[0316] The accuracy indication parameter of the location coordinates can be the reliability level (reliability parameter), or the error range and quality indication of the location of the reference device, etc. As an example, Option 1 is adopted for the candidate reference device.

[0317] Specifically, different accuracy reliability levels (in descending order) can be defined, corresponding to different positioning methods respectively:

[0318] Option 1-1: Pre-placed at a known location (e.g., obtained by laser mapping);

[0319] Option 1-2: Obtain the location of the reference device through an RAT-independent positioning scheme, including: GNSS, Bluetooth, WiFi, UWB;

[0320] Option 1-3: Obtain the preliminary location of the reference device based on the existing UE-based DL-TDOA + UE-based DL-AOD positioning method;

[0321] Option 1-4: Place the reference device at the location of the current base station TRP.

[0322] For example, Option 1-1 and Option 1-4 are in the first level; GNSS positioning in Option 1-2 is in the second level; Option 1-3 is in the third level; Bluetooth, WiFi, UWB, etc. in Option 1-2 are in the fourth level).

[0323] Step 122: The candidate reference device reports the location parameter and the accuracy indication parameter corresponding to the location parameter to the LMF simultaneously.

[0324] Step 123: The candidate reference device receives the downlink positioning assistance data notified by the LMF.

[0325] Step 124: Based on the configuration information of the downlink PRS included in the downlink positioning assistance data in Step 123, receive and measure the downlink PRS, obtain the downlink positioning measurement quantity and report it to the LMF.

[0326] Third, the base station of the non-reference device executes the following Steps 131 to 132:

[0327] Step 131: Allocate the resource configuration parameters of the downlink positioning reference signal PRS as positioning assistance data based on the target UE and the candidate reference device, and report the positioning assistance data information to the LMF;

[0328] Step 132: Send the downlink PRS to all UEs in the serving cell.

[0329] As a second example, taking the candidate reference device as the user UE and the network-side device (the first network-side device) as the base station, and taking the uplink positioning of the target UE as an example, the LMF, the user UE, and the base station respectively execute the following processes:

[0330] 1. The LMF executes the following steps 211 to 215:

[0331] Step 211: The LMF triggers or configures the reference device by at least one of the following methods 1 to 3.

[0332] Method 1: The LMF receives the automatic report of the candidate reference device.

[0333] The reported content includes: the capability parameters of the candidate reference device (used to determine whether the candidate reference device has the ability to be a reference device), the position estimate value and the speed estimate value, and the accuracy indication parameters of the position estimate value and the speed estimate value (the accuracy indication parameters include reliability level, error range, quality indication, etc.). The above-reported quantities are used for the LMF to select a reference device based on certain criteria when there are multiple candidate reference devices.

[0334] Method 2: The LMF sends indication signaling to the base station, and the base station triggers it through broadcast signaling (SIB message) or RRC dedicated signaling. The serving gNB sends the first indication information to all UEs within the coverage area, requesting all (or pre-configured) candidate reference devices (including UEs with the ability to be reference devices) to receive DLPRS according to the requirements and configurations of the first indication information and send the measured values obtained by measurement together with their location information to the LMF. The broadcast message or RRC signaling may also request the pre-configured reference device to send UL SRS-POS. Among them, a group of devices can be pre-configured as reference devices.

[0335] Method 3: The LMF triggers through a dedicated DE preset signaling message.

[0336] The LMF can send a dedicated message (or extend the existing LPP signaling message: provide UE capability request message, provide positioning assistance data message, or define a new LPP signaling message) to one or more candidate reference devices. The preset signaling message is used to indicate whether a certain device is selected as a reference device and request the reference device to report together with its location coordinate information and positioning measurement quantities. For example, the LMF triggers all UEs within the coverage area of the base station associated with the LMF that have the ability to be reference devices to first perform a UE-based positioning, and let all candidate UEs report the position estimate value and speed estimate value of the UE, as well as the uncertainty.

[0337] Step 212, when there are multiple candidate reference devices, the LMF selects one or more reference devices based on any one of the following criteria or a combination of criteria.

[0338] Criterion 1: Select in the order from high to low (or from small to large uncertainty) of the quality indication based on the location estimation value reported by the UE.

[0339] Criterion 2: Select in the order from small to large of the speed estimation value reported by the UE, and preferentially select the UE with a UE speed of 0 (i.e., the UE is stationary).

[0340] Criterion 3: Select in the order from high to low of the UE capability level reported by the UE, and preferentially select the UE with the strongest UE capability as the reference device.

[0341] Criterion 4: Select in the order from high to low of the accuracy reliability level corresponding to different UE-based positioning methods reported by the UE.

[0342] Step 213, the LMF notifies the neighboring base stations of the target UE of the uplink positioning assistance data obtained from the serving base station and neighboring base stations.

[0343] Step 214, the LMF receives the positioning measurement quantities (e.g., RTOA, or AOA) reported by the serving base station and neighboring base stations.

[0344] Step 215, the LMF performs position calculation based on the uplink positioning measurement quantities (e.g., RTOA, or AOA) obtained in Step 214, and the position of the reference device and the base station / TRP position obtained in advance.

[0345] For example, based on real-time double-differencing or one-time single-differencing processing, high-precision target UE position information is obtained.

[0346] Second, the candidate reference device (user UE) performs the following Steps 221 to 224:

[0347] Step 221: The candidate reference device calculates a position estimation value based on different positioning schemes, and an accuracy indication parameter corresponding to the position estimation value.

[0348] Among them, the positioning schemes include pre-known or calibrated, laser mapping acquisition, RAT-independent positioning schemes (GNSS positioning, Bluetooth, WiFi, UWB, etc.), UE-based DL-TDOA positioning defined by 5G NR, and UE-based DL-AOD positioning.

[0349] The position estimation value can be in the form of position coordinates, and the position coordinates include the following two options, which can be based on the position coordinates defined by the current 3GPP TS 37.355:

[0350] Option 1: (x, y, z) in the GCS coordinate system, where Option 1 uses the Cartesian coordinate system;

[0351] Option 2: (North / South Hemisphere Indication, Latitude, Precision) in the GCS coordinate system, where Option 2 uses a spherical coordinate system.

[0352] The precision indication parameter of the position coordinate can be a reliability level (reliability parameter), or the error range and quality indication of the position of the reference device, etc. As an example, Option 2 is adopted for the candidate reference device.

[0353] Specifically, the error range and quality indication of the candidate reference device position parameter further include the quality indication parameter of the positioning measurement quantity of the reference device and the error range parameter of the position solution value of the reference device.

[0354] Option 2-1: Quality indication of the reference positioning measurement quantity of the reference device, quality indication of the position solution value of the reference device, including the following two fields:

[0355] Error value: The optimal estimate indicating the uncertainty of the position solution value;

[0356] Error resolution: Indicating the quantization step of the error value.

[0357] Option 2-2: Error range of the positioning measurement quantity or position solution value of the reference device, for example: error values based on the 1sigma or 3sigma criterion; variance value; probability that the error of the position solution value and / or positioning measurement quantity is within a certain error interval at the [95%] confidence level, etc.

[0358] Step 222, the candidate reference device reports the position parameter and the precision indication parameter corresponding to the position parameter to the LMF simultaneously.

[0359] Step 223, the candidate reference device receives the uplink positioning assistance data (SRS-POS) notified by the LMF.

[0360] Step 224, the reference device sends the uplink SRS-POS.

[0361] Third, the serving base station of the non-reference device performs the following steps 231 to 234:

[0362] Step 231, the serving base station triggers or configures the reference device.

[0363] The serving base station receives the indication signaling from the LMF, and triggers or configures the reference device through the broadcast signaling (SIB message) or RRC dedicated signaling. The serving base station sends a broadcast message or RRC signaling to all UEs within the coverage area, requesting all candidate reference devices (or UEs with the ability to be a reference device) to send their positioning reference parameters to the LMF.

[0364] Step 232: Allocate positioning reference signals (uplink SRS-POS) based on the target UE and the reference device, and report positioning assistance data information to the LMF;

[0365] Step 233: Receive the uplink SRS-POS sent by all UEs in the serving cell, and perform measurements to obtain uplink positioning measurement quantities (e.g., RTOA, or AOA);

[0366] Step 234: For uplink positioning or uplink-downlink joint positioning, report the uplink measurement quantities to the LMF.

[0367] As a third example, taking the candidate reference device as the first base station and the network-side device (the first network-side device) as the second base station, and taking the downlink positioning of the target UE as an example, the LMF, the first base station, and the second base station respectively execute the following processes:

[0368] 1. The LMF executes the following steps 311 to 315:

[0369] Step 311: The LMF triggers or configures the reference device through at least one of the following methods 1 to 3.

[0370] Method 1: The LMF receives the automatic report of the candidate reference device.

[0371] The reported content includes: the capability parameters of the candidate reference device (used to determine whether the candidate reference device has the ability to be a reference device), the position estimate value and the speed estimate value, and the accuracy indication parameters of the position estimate value and the speed estimate value (the accuracy indication parameters include reliability level, error range, and quality indication, etc.). The above reported quantities are used for the LMF to select a reference device based on certain criteria when there are multiple candidate reference devices.

[0372] Method 2: The LMF sends indication signaling to the second base station, and the second base station triggers it through broadcast signaling (SIB message) or RRC dedicated signaling. The serving gNB sends the first indication information to all first base stations within its coverage area, requesting all (or pre-configured) candidate reference devices (including the first base stations with the ability to be reference devices) to receive the DL PRS according to the requirements and configurations of the first indication information and send the measured values obtained by the measurement together with their location information to the LMF. The broadcast message or RRC signaling may also request the pre-configured reference device to send the UL SRS-POS. Among them, a group of devices can be pre-configured as reference devices.

[0373] Method 3: The LMF triggers through a dedicated pre-set signaling message.

[0374] The LMF may send dedicated messages (or extend existing LPP signaling messages: Provide First Base Station Capability Request Message, Provide Positioning Assistance Data Message, or define a new LPP signaling message) to one or more candidate reference devices. This preset signaling message is used to indicate whether a device is selected as a reference device and request the reference device to report together with its location coordinate information and positioning measurement quantities. For example, the LMF triggers all the capabilities within the coverage of the second base station associated with the LMF as the first base station of the reference device to first perform a base station-based positioning, and let all candidate first base stations report the position estimate value, speed estimate value, and uncertainty of the first base station.

[0375] Step 312, when there are multiple candidate reference devices, the LMF selects one or more reference devices based on any one of the following criteria or a combination of criteria.

[0376] Criterion 1: Select in the order from the highest to the lowest quality indication (or from the smallest to the largest uncertainty) of the position estimate value reported by the first base station;

[0377] Criterion 2: Select in the order from the smallest to the largest speed estimate value reported by the first base station, and preferentially select the first base station with the first base station speed of 0 (i.e., the first base station is stationary);

[0378] Criterion 3: Select in the order from the highest to the lowest first base station capability level reported by the first base station, and preferentially select the first base station with the strongest first base station capability as the reference device;

[0379] Criterion 4: Select in the order from the highest to the lowest accuracy reliability level corresponding to different base station-based positioning methods reported by the first base station.

[0380] Step 313, the LMF notifies the candidate reference device of the downlink positioning assistance data obtained from the serving second base station and adjacent second base stations.

[0381] Among them, the message sent by the LMF to the reference device may include configuration information for measurement reporting, including: the content of positioning measurement quantities (downlink RSTD, time difference between the first base station and the transceiver, etc.), reporting timing, and reporting method (periodic or aperiodic reporting).

[0382] Step 314, the LMF receives the positioning measurement quantities (RSTD) reported by the reference device and non-reference device.

[0383] Step 315, the LMF performs position calculation based on the downlink positioning measurement quantities (RSTD) obtained in Step 314, and the position of the reference device and the position of the second base station / TRP obtained in advance.

[0384] For example, based on real-time double-difference or single-difference processing once, high-precision target first base station location information is obtained.

[0385] Second, the candidate reference device (first base station) performs the following steps 321 to 324:

[0386] Step 321: The location parameter (location estimated value) of the candidate reference device, and the accuracy indication parameter corresponding to this location estimated value.

[0387] When the candidate reference device is a base station with a pre-known ideal location, there is no need to perform separate positioning. The location estimated value, and the accuracy indication parameter corresponding to this first location estimated value are directly obtained.

[0388] Step 322, based on the current NRPPa signaling, the candidate reference device reports the location parameter and the accuracy indication parameter corresponding to this location parameter to the LMF simultaneously.

[0389] Step 323, for downlink positioning (or uplink and downlink positioning), the candidate reference device receives the downlink positioning assistance data (time-frequency resource configuration information of PRS) notified by the LMF;

[0390] For uplink positioning (or uplink and downlink positioning), the candidate reference device receives the uplink positioning assistance data (SRS-POS time-frequency resource configuration information) notified by the serving base station.

[0391] Step 324, for downlink positioning (or uplink and downlink positioning), the candidate reference device receives and measures the downlink PRS based on the downlink PRS configuration information included in the downlink positioning assistance data, obtains the downlink positioning measurement quantity and reports it to the LMF;

[0392] For uplink positioning (or uplink and downlink positioning), the reference device sends the uplink SRS-POS.

[0393] Third, the second base station of the non-reference device performs the following steps 331 to 332:

[0394] Step 331, based on the resource configuration parameters for allocating the downlink positioning reference signal PRS by the target first base station and the candidate reference device as the positioning assistance data, and reports the positioning assistance data information to the LMF;

[0395] Step 332, sends the downlink PRS to all UEs within the serving cell.

[0396] In the above examples of the embodiments of the present application, the candidate reference device determines the positioning reference parameters and sends the positioning reference parameters to the Location Management Function network element (LMF). The LMF obtains the positioning reference parameters of the candidate reference device and determines the target reference device among the candidate reference devices according to the positioning reference parameters. The positioning reference parameters can be automatically sent by the candidate reference device or obtained through the first indication information and / or the second indication information. In the embodiments of the present application, a method for configuring or selecting the target reference device is provided, and the target reference device is configured or selected through the positioning reference parameters, so as to improve the configuration accuracy or selection accuracy of the target reference device, and further improve the positioning accuracy of positioning the UE in the 5G NR system.

[0397] The method provided by the embodiments of the present application has been introduced above. Next, the device provided by the embodiments of the present application will be introduced with reference to the drawings.

[0398] See Figure 4 , the embodiments of the present application further provide a reference device determination device, which is applied to the Location Management Function network element (LMF). The device includes:

[0399] A parameter acquisition module 401, configured to acquire the positioning reference parameters of the candidate reference device;

[0400] A device determination module 402, configured to determine the target reference device among the candidate reference devices according to the positioning reference parameters;

[0401] Wherein, the positioning reference parameters are acquired through at least one of the following:

[0402] Receiving the positioning reference parameters sent by the candidate reference device;

[0403] Instructing the first network-side device to send the first indication information to the candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameters to the LMF;

[0404] Sending the second indication information to the candidate reference device through a preset signaling message, where the second indication information instructs the candidate reference device to send the positioning reference parameters to the LMF.

[0405] Optionally, in the embodiments of the present application, the positioning reference parameters include at least one of the following:

[0406] The position parameters of the candidate reference device and the accuracy indication parameters of the position parameters.

[0407] Optionally, in the embodiments of the present application, the position parameters include at least one of the following:

[0408] The position estimate value, speed estimate value, device capability parameter, and positioning mode parameter of the candidate reference device.

[0409] Optionally, in the embodiments of the present application, the accuracy indication parameter includes at least one of the following:

[0410] The quality indication parameter of the position estimation value, the error range parameter of the position estimation value, the uncertainty parameter of the position estimation value, and the reliability parameter of the positioning method parameter.

[0411] Optionally, in the embodiments of the present application, if the accuracy indication parameter includes the error range parameter of the position estimation value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0412] Wherein, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution;

[0413] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0414] Optionally, in the embodiments of the present application, the device determination module 402 includes:

[0415] A first determination sub-module, configured to determine whether the candidate reference device is a target reference device according to the positioning reference parameter and the preset parameter requirements if the candidate reference device includes one; wherein, the preset parameter requirements include requirements for at least one of the positioning reference parameters;

[0416] A second determination sub-module, configured to determine the target reference device among the candidate reference devices according to a preset selection method if the candidate reference device includes at least two.

[0417] Optionally, in the embodiments of the present application, the second determination sub-module is configured to perform at least one of the following:

[0418] Select the target reference device among the candidate reference devices based on the order of the numerical values of the quality indication parameter of the position estimation value from small to large;

[0419] Select the target reference device among the candidate reference devices based on the order of the numerical values of the uncertainty parameter of the position estimation value from small to large;

[0420] Select the target reference device among the candidate reference devices based on the order of the speed estimation value from small to large;

[0421] Select the target reference device among the candidate reference devices based on the order of the numerical values of the device capability parameter of the candidate reference device from small to large;

[0422] Select the target reference device among the candidate reference devices in the order of the values of the reliability parameters of the positioning method parameters from small to large;

[0423] Select the target reference device among the candidate reference devices based on at least two of the positioning reference parameters.

[0424] Optionally, in the embodiments of the present application, the device further includes:

[0425] A first positioning module, configured to send positioning assistance data to the target reference device or an adjacent network-side device of the target reference device;

[0426] Receive positioning measurement quantities;

[0427] Locate the target terminal based on the positioning measurement quantities.

[0428] In the embodiments of the present application, the parameter acquisition module 401 acquires the positioning reference parameters of the candidate reference devices; the device determination module 402 determines the target reference device among the candidate reference devices according to the positioning reference parameters; the positioning reference parameters can be automatically sent by the candidate reference devices, or obtained through the first indication information and / or the second indication information; in the embodiments of the present application, a method for configuring or selecting a reference device is provided, and the reference device is configured or selected through the positioning reference parameters, so as to improve the configuration accuracy or selection accuracy of the target reference device, and further improve the positioning accuracy of positioning the UE in the 5G NR system. And subsequently, during the positioning process, the position information of the target reference device can be referred to, which can further improve the positioning accuracy of positioning the UE.

[0429] See Figure 5 , the embodiments of the present application further provide a parameter processing device, which is applied to a candidate reference device, and the device includes:

[0430] A parameter determination module 501, configured to determine positioning reference parameters;

[0431] A parameter sending module 502, configured to send the positioning reference parameters to the Location Management Function network element LMF;

[0432] Wherein, the positioning reference parameters are sent through at least one of the following:

[0433] The candidate reference device sends autonomously;

[0434] Send when receiving the first indication information sent by the first network-side device, where the first indication information is indicated by the LMF for the first network-side device to send;

[0435] Send when receiving a preset signaling message indicated by the LMF.

[0436] In an alternative embodiment, the positioning reference parameter includes at least one of the following:

[0437] The position parameter of the candidate reference device and the accuracy indication parameter of the position parameter.

[0438] In an alternative embodiment, the position parameter includes at least one of the following:

[0439] The position estimate value, speed estimate value, device capability parameter, and positioning method parameter of the candidate reference device.

[0440] In an alternative embodiment, the accuracy indication parameter includes at least one of the following:

[0441] The quality indication parameter of the position estimate value, the error range parameter of the position estimate value, the uncertainty parameter of the position estimate value, and the reliability parameter of the positioning method parameter.

[0442] In an alternative embodiment, if the accuracy indication parameter includes the error range parameter of the position estimate value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0443] Wherein, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution;

[0444] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0445] In an alternative embodiment, if the position parameter includes the position estimate value, the parameter determination module 501 includes:

[0446] A first acquisition sub-module, configured to, if the candidate reference device includes a network-side device, acquire the position estimate value of the network-side device and / or the quality indication parameter of the position estimate value;

[0447] A second acquisition sub-module, configured to, if the candidate reference device includes a terminal device, perform positioning on the terminal device to obtain the position estimate value of the terminal device, and acquire the quality indication parameter of the position estimate value.

[0448] In an alternative embodiment, the second acquisition sub-module is configured to:

[0449] Perform positioning on the terminal device according to a preset positioning method to obtain the position estimate value of the terminal device;

[0450] The preset positioning method includes at least one of the following:

[0451] Laser mapping method, UE-based positioning independent of radio access technology (RAT-independent), and UE-based positioning based on radio access technology (RAT-based).

[0452] In an alternative embodiment, the second acquisition sub-module is configured to:

[0453] Determine a quality indication parameter of the position estimate based on the preset positioning method and / or the position attribute of the position estimate of the terminal device; wherein, the position attribute includes: the position estimate indicates a preset position and / or the transceiver point position of the target network-side device.

[0454] In an alternative embodiment, the parameter sending module 502 includes:

[0455] A first sending sub-module, configured to send the positioning reference parameter to a location management function network element (LMF) based on a new radio (NR) positioning protocol A signaling if the candidate reference device includes a network-side device;

[0456] A second sending sub-module, configured to send the positioning reference parameter to a location management function network element (LMF) based on a long term evolution (LTE) positioning protocol signaling if the candidate reference device includes a terminal device.

[0457] In an alternative embodiment, the apparatus includes:

[0458] A data receiving module, configured to receive positioning assistance data sent by the LMF if the candidate reference device is a target reference device;

[0459] A data sending module, configured to measure a positioning measurement based on the positioning assistance data and send the positioning measurement to the LMF.

[0460] In the embodiments of the present application, a parameter determination module 501 determines a positioning reference parameter; a parameter sending module 502 sends the positioning reference parameter to a location management function network element (LMF); the positioning reference parameter can be automatically sent by a candidate reference device or obtained through a first indication information and / or a second indication information; in the embodiments of the present application, a method for configuring or selecting a reference device is provided, and the LMF configures or selects a reference device through the positioning reference parameter, improving the configuration accuracy or selection accuracy of the target reference device, and further improving the positioning accuracy of positioning a user equipment (UE) in a 5G NR system.

[0461] See Figure 6 , the embodiments of the present application further provide a reference device determination apparatus, which is applied to a network-side device, and the apparatus includes:

[0462] An information receiving module 601, configured to receive third indication information sent by a Location Management Function (LMF) network element;

[0463] An information response module 602, configured to, in response to the third indication information, send first indication information to a candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameter to the LMF; the positioning reference parameter is used by the LMF to determine a target reference device among the candidate reference devices.

[0464] In an embodiment of the present application, the information receiving module 601 receives the third indication information sent by the Location Management Function (LMF) network element, and the information response module 602, in response to the third indication information, sends the first indication information to the candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameter to the LMF, so that the LMF determines the target reference device among the candidate reference devices according to the positioning reference parameter; in the embodiment of the present application, a method for configuring or selecting a reference device is provided, and the reference device is configured or selected through the positioning reference parameter, so as to improve the configuration accuracy or selection accuracy of the target reference device, and further improve the positioning accuracy of positioning a User Equipment (UE) in a 5G NR system.

[0465] It should be noted that the division of modules (units) in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of the present application, each functional module may be integrated into a processing module, or each module may exist physically alone, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0466] If the above-mentioned integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may be stored in a processor-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network-side device, etc.) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage medium includes: various media 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 disc that can store program codes.

[0467] It should be noted here that the above device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0468] As Figure 7 shown, an embodiment of the present application further provides a network-side device, which includes a Location Management Function network element (LMF), and further includes a memory 720, a transceiver 740, and a processor 710;

[0469] The memory 720 is used to store computer programs;

[0470] The transceiver 740 is used to receive and send data under the control of the processor 710;

[0471] The processor 710 is used to read the computer program in the memory 720 and perform the following operations:

[0472] Obtain the positioning reference parameters of the candidate reference device;

[0473] Determine the target reference device among the candidate reference devices according to the positioning reference parameters;

[0474] Among them, the positioning reference parameters are obtained through at least one of the following:

[0475] Receive the positioning reference parameters sent by the candidate reference device;

[0476] Instruct a first network-side device to send first indication information to the candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameters to the LMF;

[0477] Send second indication information to the candidate reference device through a preset signaling message, where the second indication information instructs the candidate reference device to send the positioning reference parameters to the LMF.

[0478] In an optional embodiment, the positioning reference parameters include at least one of the following:

[0479] The location parameters of the candidate reference device and the accuracy indication parameters of the location parameters.

[0480] In an optional embodiment, the location parameters include at least one of the following:

[0481] The location estimate, speed estimate, device capability parameters, and positioning method parameters of the candidate reference device.

[0482] In an optional embodiment, the accuracy indication parameters include at least one of the following:

[0483] The quality indication parameter of the position estimation value, the error range parameter of the position estimation value, the uncertainty parameter of the position estimation value, and the reliability parameter of the positioning method parameter.

[0484] In an optional embodiment, if the accuracy indication parameter includes the error range parameter of the position estimation value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0485] Wherein, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution;

[0486] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0487] In an optional embodiment, the determining the target reference device among the candidate reference devices according to the positioning reference parameter includes:

[0488] If there is only one candidate reference device, determine whether the candidate reference device is the target reference device according to the positioning reference parameter and the preset parameter requirements; wherein, the preset parameter requirements include the requirements for at least one of the positioning reference parameters;

[0489] If there are at least two candidate reference devices, determine the target reference device among the candidate reference devices according to a preset selection method.

[0490] In an optional embodiment, the determining the target reference device among the candidate reference devices according to the preset selection method includes at least one of the following:

[0491] Select the target reference device among the candidate reference devices based on the order of the numerical values of the quality indication parameter of the position estimation value from small to large;

[0492] Select the target reference device among the candidate reference devices based on the order of the numerical values of the uncertainty parameter of the position estimation value from small to large;

[0493] Select the target reference device among the candidate reference devices based on the order of the speed estimation value from small to large;

[0494] Select the target reference device among the candidate reference devices based on the order of the numerical values of the device capability parameter of the candidate reference device from small to large;

[0495] Select the target reference device among the candidate reference devices in the ascending order of the numerical values of the reliability parameters based on the positioning method parameters;

[0496] Select the target reference device among the candidate reference devices based on at least two of the positioning reference parameters.

[0497] In an alternative embodiment, after determining the target reference device among the candidate reference devices, the method further includes:

[0498] Send positioning assistance data to the target reference device or an adjacent network-side device of the target reference device;

[0499] Receive positioning measurement quantities;

[0500] Based on the positioning measurement quantities, perform positioning on the target terminal. Among them, in Figure 7 The bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors 710 represented by the processor 710 and the memory 720 represented by the memory 720 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus will not be further described herein. The bus interface 730 provides an interface. The transceiver 740 may be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, and other transmission mediums. The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 710 when executing operations.

[0501] The processor 710 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor 710 may also adopt a multi-core architecture.

[0502] The processor 710 is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory 720. The processor 710 and the memory 720 may also be physically separated.

[0503] As Figure 8As shown in the figure, an embodiment of the present application further provides a terminal, including a memory 820, a transceiver 840, and a processor 810;

[0504] The memory 820 is used to store computer programs;

[0505] The transceiver 840 is used to receive and send data under the control of the processor 810;

[0506] The processor 810 is used to read the computer program in the memory 820 and perform the following operations:

[0507] Determine positioning reference parameters;

[0508] Send the positioning reference parameters to a Location Management Function (LMF) network element;

[0509] Wherein, the positioning reference parameters are sent through at least one of the following:

[0510] Autonomous sending by the candidate reference device;

[0511] Sending when receiving first indication information sent by a first network-side device, where the first indication information is indicated by the LMF to the first network-side device to send;

[0512] Sending when receiving a preset signaling message indicated by the LMF to send.

[0513] In an alternative embodiment, the positioning reference parameters include at least one of the following:

[0514] The location parameters of the candidate reference device and the accuracy indication parameters of the location parameters.

[0515] In an alternative embodiment, the location parameters include at least one of the following:

[0516] The location estimate value, speed estimate value, device capability parameters, and positioning mode parameters of the candidate reference device.

[0517] In an alternative embodiment, the accuracy indication parameters include at least one of the following:

[0518] The quality indication parameter of the location estimate value, the error range parameter of the location estimate value, the uncertainty parameter of the location estimate value, and the reliability parameter of the positioning mode parameter.

[0519] In an alternative embodiment, if the accuracy indication parameters include the error range parameter of the location estimate value, the error range parameter includes a first error range parameter and / or a second error range parameter;

[0520] Among them, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution;

[0521] The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

[0522] In an alternative embodiment, if the position parameter includes the position estimated value, the determining of the positioning reference parameter includes:

[0523] If the candidate reference device includes a network-side device, obtain the position estimated value of the network-side device and / or the quality indication parameter of the position estimated value;

[0524] If the candidate reference device includes a terminal device, perform positioning on the terminal device to obtain the position estimated value of the terminal device, and obtain the quality indication parameter of the position estimated value.

[0525] In an alternative embodiment, the performing of the positioning on the terminal device to obtain the position estimated value of the terminal device includes:

[0526] Perform positioning on the terminal device according to a preset positioning method to obtain the position estimated value of the terminal device;

[0527] The preset positioning method includes at least one of the following:

[0528] Laser mapping method, UE-based positioning independent of radio access technology (RAT-independent), UE-based positioning based on radio access technology (RAT).

[0529] In an alternative embodiment, the obtaining of the quality indication parameter of the position estimated value includes:

[0530] Determine the quality indication parameter of the position estimated value based on the preset positioning method and / or the position attribute of the position estimated value of the terminal device; wherein, the position attribute includes: the position estimated value indicates a preset position and / or the transceiver point position of the target network-side device.

[0531] In an alternative embodiment, the sending of the positioning reference parameter to the Location Management Function (LMF) network element includes:

[0532] If the candidate reference device includes a network-side device, send the positioning reference parameter to the Location Management Function (LMF) network element based on the New Radio (NR) positioning protocol A signaling;

[0533] If the candidate reference device includes a terminal device, send the positioning reference parameters to a Location Management Function (LMF) based on Long Term Evolution (LTE) positioning protocol signaling.

[0534] In an alternative embodiment, after sending the positioning reference parameters to the Location Management Function (LMF), the method includes:

[0535] If the candidate reference device is the target reference device, receive positioning assistance data sent by the LMF;

[0536] Measure a positioning measurement quantity based on the positioning assistance data, and send the positioning measurement quantity to the LMF.

[0537] Among them, in Figure 8 the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors 810 represented by the processor 810 and the memory 820 represented by the memory 820 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and thus will not be further described herein. The bus interface 830 provides an interface. The transceiver 840 may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, and other transmission mediums. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 810 when executing operations. For different user devices, the user interface 850 may also be an interface capable of externally connecting and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0538] The processor 810 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and the processor 810 may also adopt a multi-core architecture.

[0539] The processor 810 is used to execute any of the methods provided in the embodiments of the present application by calling a computer program stored in the memory 820 according to the obtained executable instructions. The processor 810 and the memory 820 may also be physically separated.

[0540] As Figure 9As shown in the figure, an embodiment of the present application further provides a network-side device, which includes a memory 920, a transceiver 940, and a processor 910;

[0541] The memory 920 is used to store computer programs;

[0542] The transceiver 940 is used to receive and send data under the control of the processor 910;

[0543] The processor 910 is used to read the computer program in the memory 920 and perform the following operations:

[0544] Receive the third indication information sent by the Location Management Function Network Element (LMF);

[0545] In response to the third indication information, send the first indication information to the candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameter to the LMF; the positioning reference parameter is used by the LMF to determine the target reference device among the candidate reference devices.

[0546] Among them, in Figure 9 The bus architecture may include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors 910 represented by the processor 910 and the memory 920 represented by the memory 920 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, so they will not be further described herein. The bus interface 930 provides an interface. The transceiver 940 may be multiple components, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on the transmission medium, and these transmission mediums include wireless channels, wired channels, optical fiber cables, and other transmission mediums. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 can store the data used by the processor 910 when performing operations.

[0547] The processor 910 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD). The processor 910 may also adopt a multi-core architecture.

[0548] The processor 910 is configured to execute any of the methods provided by the embodiments of the present application according to the obtained executable instructions by calling a computer program stored in the memory 920. The processor 910 and the memory 920 may also be physically separated.

[0549] It should be noted here that the above-mentioned device provided by the embodiments of the present application can implement all the method steps implemented by the corresponding above-mentioned method embodiments, and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described herein.

[0550] The embodiments of the present application further provide a processor-readable storage medium storing a computer program for causing the processor to execute the foregoing method.

[0551] The processor-readable storage medium may be any available medium or data storage device accessible by the processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memories (NANDFLASH), solid state drives (SSD)).

[0552] Those skilled in the art should understand that the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, the present application may take the form of an all-hardware embodiment, an all-software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program code.

[0553] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one or more of the flows or multiple flows and / or blocks Figure 1 one or more of the blocks or multiple blocks.

[0554] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory produce a manufacture including instruction means that implement the functions specified in one process Figure 1 one process or a plurality of processes and / or blocks Figure 1 specified in one block or a plurality of blocks.

[0555] These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one process Figure 1 one process or a plurality of processes and / or blocks Figure 1 specified in one block or a plurality of blocks.

[0556] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit and scope of the application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A method for determining a reference device, which is applied to a Location Management Function (LMF) network element, characterized in that, the method includes: Obtaining positioning reference parameters of candidate reference devices; Determining a target reference device among the candidate reference devices according to the positioning reference parameters; wherein, the positioning reference parameters are obtained through at least one of the following: Receiving the positioning reference parameters sent by the candidate reference devices; Instructing a first network-side device to send a first indication message to the candidate reference devices, where the first indication message instructs the candidate reference devices to send the positioning reference parameters to the LMF; Sending a second indication message to the candidate reference devices through a preset signaling message, where the second indication message instructs the candidate reference devices to send the positioning reference parameters to the LMF; wherein, the positioning reference parameters include at least one of the following: The position parameters of the candidate reference devices and the accuracy indication parameters of the position parameters.

2. The method for determining a reference device according to claim 1, characterized in that, the position parameters include at least one of the following: The position estimation value, speed estimation value, device capability parameters, and positioning mode parameters of the candidate reference devices.

3. The method for determining a reference device according to claim 2, characterized in that, the accuracy indication parameters include at least one of the following: The quality indication parameter of the position estimation value, the error range parameter of the position estimation value, the uncertainty parameter of the position estimation value, and the reliability parameter of the positioning mode parameter.

4. The method for determining a reference device according to claim 3, characterized in that, if the accuracy indication parameters include the error range parameter of the position estimation value, the error range parameter includes a first error range parameter and / or a second error range parameter; wherein, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution; The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

5. The method for determining a reference device according to claim 3, characterized in that, the determining the target reference device among the candidate reference devices according to the positioning reference parameters includes: If there is only one candidate reference device, determining whether the candidate reference device is the target reference device according to the positioning reference parameters and preset parameter requirements; wherein, the preset parameter requirements include requirements for at least one of the positioning reference parameters; If there are at least two candidate reference devices, determining the target reference device among the candidate reference devices according to a preset selection method.

6. The method for determining a reference device according to claim 5, characterized in that, the determining the target reference device among the candidate reference devices according to the preset selection method includes at least one of the following: Selecting the target reference device among the candidate reference devices based on the ascending order of the numerical values of the quality indication parameters of the position estimation value; Select the target reference device among the candidate reference devices in ascending order of the numerical value of the uncertainty parameter based on the position estimation value; Select the target reference device among the candidate reference devices in ascending order of the speed estimation value; Select the target reference device among the candidate reference devices in ascending order of the numerical value of the device capability parameter of the candidate reference device; Select the target reference device among the candidate reference devices in ascending order of the numerical value of the reliability parameter of the positioning method parameter; Select the target reference device among the candidate reference devices based on at least two parameters in the positioning reference parameter.

7. The method for determining a reference device according to any one of claims 1 to 6, wherein, after determining the target reference device among the candidate reference devices, the method further includes: Sending positioning assistance data to the target reference device or an adjacent network-side device of the target reference device; Receiving positioning measurement quantities; Positioning the target terminal based on the positioning measurement quantities.

8. A parameter processing method applied to a candidate reference device, wherein, the method includes: Determining a positioning reference parameter; Sending the positioning reference parameter to a Location Management Function network element (LMF); wherein, the positioning reference parameter is sent through at least one of the following: The candidate reference device sends autonomously; Sending when receiving a first indication message sent by a first network-side device, where the first indication message is indicated by the LMF to the first network-side device to send; Sending when receiving a preset signaling message indicated by the LMF to send; wherein, the positioning reference parameter includes at least one of the following: The position parameter of the candidate reference device and the accuracy indication parameter of the position parameter.

9. The parameter processing method according to claim 8, wherein, the position parameter includes at least one of the following: The position estimation value, speed estimation value, device capability parameter, and positioning method parameter of the candidate reference device.

10. The parameter processing method according to claim 9, wherein, the accuracy indication parameter includes at least one of the following: The quality indication parameter of the position estimation value, the error range parameter of the position estimation value, the uncertainty parameter of the position estimation value, and the reliability parameter of the positioning method parameter.

11. The parameter processing method according to claim 10, wherein, if the accuracy indication parameter includes the error range parameter of the position estimation value, the error range parameter includes a first error range parameter and / or a second error range parameter; wherein, the first error range parameter includes the first error of the position solution value of the candidate reference device; the first error includes an error value and / or an error resolution; The second error range parameter includes the second error of the candidate reference device, and the second error is the error of the position solution value and / or the positioning measurement quantity.

12. The parameter processing method according to claim 10, wherein, if the position parameter includes the position estimation value, the determining of the positioning reference parameter includes: If the candidate reference device includes a network-side device, obtain a position estimate value of the network-side device and / or a quality indication parameter of the position estimate value; If the candidate reference device includes a terminal device, perform positioning on the terminal device to obtain a position estimate value of the terminal device, and obtain a quality indication parameter of the position estimate value.

13. The parameter processing method according to claim 12, wherein, the performing positioning on the terminal device to obtain a position estimate value of the terminal device includes: performing positioning on the terminal device according to a preset positioning method to obtain a position estimate value of the terminal device; the preset positioning method includes at least one of the following: laser mapping method, UE-based positioning independent of radio access technology (RAT-independent), UE-based positioning dependent on radio access technology (RAT-dependent).

14. The parameter processing method according to claim 13, wherein, the obtaining a quality indication parameter of the position estimate value includes: determining a quality indication parameter of the position estimate value based on the preset positioning method and / or a position attribute of the position estimate value of the terminal device; wherein, the position attribute includes: the position estimate value indicates a preset position and / or a transceiver point position of a target network-side device.

15. The parameter processing method according to claim 8, wherein, the sending the positioning reference parameter to a Location Management Function (LMF) network element includes: if the candidate reference device includes a network-side device, sending the positioning reference parameter to the LMF network element based on a New Radio (NR) positioning protocol A signaling; if the candidate reference device includes a terminal device, sending the positioning reference parameter to the LMF network element based on a Long-Term Evolution (LTE) positioning protocol signaling.

16. The parameter processing method according to claim 8, wherein, after the sending the positioning reference parameter to the LMF network element, the method includes: if the candidate reference device is a target reference device, receiving positioning assistance data sent by the LMF; measuring a positioning measurement quantity according to the positioning assistance data, and sending the positioning measurement quantity to the LMF.

17. A method for determining a reference device, applied to a network-side device, wherein, the method includes: receiving third indication information sent by a Location Management Function (LMF) network element; responding to the third indication information, sending first indication information to a candidate reference device, the first indication information instructing the candidate reference device to send a positioning reference parameter to the LMF; the positioning reference parameter is used by the LMF to determine a target reference device among the candidate reference devices; wherein, the positioning reference parameter includes at least one of the following: a position parameter of the candidate reference device and an accuracy indication parameter of the position parameter.

18. A network-side device, the network-side device includes a Location Management Function (LMF) network element, wherein, the network-side device further includes: a memory, a transceiver, a processor: A memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; a processor for reading the computer programs in the memory and performing the following operations: Obtain the positioning reference parameters of candidate reference devices; Determine the target reference device among the candidate reference devices according to the positioning reference parameters; Wherein, the positioning reference parameters are obtained through at least one of the following: Receive the positioning reference parameters sent by the candidate reference devices; Instruct a first network-side device to send first indication information to the candidate reference devices, where the first indication information instructs the candidate reference devices to send the positioning reference parameters to the LMF; Send second indication information to the candidate reference devices through a preset signaling message, where the second indication information instructs the candidate reference devices to send the positioning reference parameters to the LMF; Wherein, the positioning reference parameters include at least one of the following: The position parameters of the candidate reference devices and the accuracy indication parameters of the position parameters.

19. A candidate reference device, Characterized in that, The candidate reference device includes: A memory, a transceiver, a processor: A memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; a processor for reading the computer programs in the memory and performing the following operations: Determine the positioning reference parameters; Send the positioning reference parameters to a Location Management Function network element (LMF); Wherein, the positioning reference parameters are sent through at least one of the following: The candidate reference device sends autonomously; Send when receiving first indication information sent by a first network-side device, where the first indication information is sent by the LMF instructing the first network-side device; Send when receiving a preset signaling message sent by the LMF; Wherein, the positioning reference parameters include at least one of the following: The position parameters of the candidate reference devices and the accuracy indication parameters of the position parameters.

20. A network-side device, Characterized in that, The network-side device includes: A memory, a transceiver, a processor: A memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; a processor for reading the computer programs in the memory and performing the following operations: Receive third indication information sent by a Location Management Function network element (LMF); In response to the third indication information, send first indication information to the candidate reference devices, where the first indication information instructs the candidate reference devices to send positioning reference parameters to the LMF; the positioning reference parameters are used by the LMF to determine the target reference device among the candidate reference devices; Wherein, the positioning reference parameters include at least one of the following: The position parameters of the candidate reference devices and the accuracy indication parameters of the position parameters.

21. A reference device determination apparatus, applied to a Location Management Function network element (LMF), Characterized in that, The apparatus includes: A parameter acquisition module for acquiring the positioning reference parameters of candidate reference devices; A device determination module for determining the target reference device among the candidate reference devices according to the positioning reference parameters; Among them, the positioning reference parameter is obtained through at least one of the following: Receiving the positioning reference parameter sent by the candidate reference device; Instructing a first network-side device to send first indication information to the candidate reference device, where the first indication information instructs the candidate reference device to send the positioning reference parameter to the LMF; Sending second indication information to the candidate reference device through a preset signaling message, where the second indication information instructs the candidate reference device to send the positioning reference parameter to the LMF; Among them, the positioning reference parameter includes at least one of the following: The position parameter of the candidate reference device and the accuracy indication parameter of the position parameter.

22. A parameter processing device is applied to a candidate reference device. Characterized in that The device includes: A parameter determination module for determining a positioning reference parameter; A parameter sending module for sending the positioning reference parameter to a Location Management Function (LMF) network element; Among them, the positioning reference parameter is sent through at least one of the following: The candidate reference device sends autonomously; Sending when receiving first indication information sent by a first network-side device, where the first indication information is sent by the LMF instructing the first network-side device; Sending when receiving a preset signaling message sent by the LMF; Among them, the positioning reference parameter includes at least one of the following: The position parameter of the candidate reference device and the accuracy indication parameter of the position parameter.

23. A reference device determination device is applied to a network-side device. Characterized in that The device includes: An information receiving module for receiving third indication information sent by a Location Management Function (LMF) network element; An information response module for, in response to the third indication information, sending first indication information to a candidate reference device, where the first indication information instructs the candidate reference device to send a positioning reference parameter to the LMF; the positioning reference parameter is used by the LMF to determine a target reference device among the candidate reference devices; Among them, the positioning reference parameter includes at least one of the following: The position parameter of the candidate reference device and the accuracy indication parameter of the position parameter.

24. A processor-readable storage medium Characterized in that The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the method according to any one of claims 1 to 17.

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