Direct diameter or non-direct diameter transmission method, reception method and device of indication information

Abstract

A method, a device and a method for transmitting direct or indirect indication information, the method comprising: a first device sending direct or indirect indication information corresponding to a positioning measurement to a positioning server, wherein the first device comprises at least one of a terminal, a base station and a transmission reception point (TRP), and the direct or indirect indication information is used to indicate a direct or indirect attribute of a wireless link associated with the positioning measurement, and the direct or indirect attribute comprises at least one of: direct, indirect, probability of direct, probability of indirect. The application can assist the positioning server to more accurately estimate the terminal position, avoid the influence of indirect on the accuracy of terminal position calculation, and thus improve the positioning accuracy of the positioning server when estimating the terminal position.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mobile communication technology, and in particular to a method for sending, a method for receiving and an apparatus for indicating line of sight (LOS) or non line of sight (NLOS) information. BACKGROUND

[0002] Positioning by using mobile communication base stations or transmit and receive points (TRPs) is a new direction of development of mobile communication applications in recent years. At present, terminal positioning has been widely used in various navigation, ranging and other application scenarios. How to further improve the positioning accuracy of terminal positions is a problem that the industry has been studying. SUMMARY

[0003] At least one embodiment of the present application provides a method for sending, a method for receiving and an apparatus for indicating line of sight (LOS) or non line of sight (NLOS) information. By providing line of sight or non line of sight indication information for assisting terminal positioning to a positioning server, the positioning accuracy of terminal positions can be improved.

[0004] According to one aspect of the present application, at least one embodiment provides a method for sending line of sight or non line of sight indication information, comprising:

[0005] A first device sends line of sight or non line of sight indication information corresponding to a positioning measurement to a positioning server, wherein the first device includes at least one of a terminal, a base station and a transmit and receive point (TRP), the line of sight or non line of sight indication information is used to indicate a line of sight or non line of sight attribute of a wireless link associated with the positioning measurement, and the line of sight or non line of sight attribute includes at least one of the following: line of sight; non line of sight; probability of line of sight; probability of non line of sight.

[0006] In addition, according to at least one embodiment of the present application, it further comprises:

[0007] The first device sends the positioning measurement to the positioning server, so that the positioning server performs positioning according to the positioning measurement and the line of sight or non line of sight indication information corresponding to the positioning measurement.

[0008] In addition, according to at least one embodiment of the present application, the first device sends line of sight or non line of sight indication information corresponding to a positioning measurement to a positioning server, comprising:

[0009] For one positioning measurement, the first device sends at least two direct or indirect indication information corresponding to the positioning measurement to a positioning server, wherein the positioning measurement is associated with at least two measurement objects, each direct or indirect indication information is associated with a wireless link associated with one measurement object.

[0010] In addition, according to at least one embodiment of the present application, the positioning measurement is a downlink reference signal time difference DL-RSTD measurement.

[0011] The at least two measurement objects include a reference measurement object and a relative measurement object; wherein the reference measurement object is a reference TRP, and the relative measurement object is a measurement TRP; or the reference measurement object is a reference time, and the relative measurement object is a measurement time or a downlink time difference of arrival DL-TDOA.

[0012] In addition, according to at least one embodiment of the present application, when sending at least one positioning measurement, the direct or indirect indication information of the wireless link associated with the same reference measurement object is sent to the positioning server, and for each relative measurement object, the direct or indirect indication information of the wireless link associated with one relative measurement object is sent respectively.

[0013] In addition, according to at least one embodiment of the present application, the direct or indirect indication information of the wireless link associated with the reference measurement object is carried in a first information element IE, and the first information element IE includes signal measurement information NR-DL-TDOA-SignalMeasurementInformation-r17.

[0014] The direct or indirect indication information of the wireless link associated with the first relative measurement object is carried in a measurement element signaling NR-DL-TDOA-MeasElement-r17, and the direct or indirect indication information of the wireless link associated with the remaining relative measurement objects is carried in additional measurement element signaling NR-DL-TDOA-AdditionalMeasurements-r17.

[0015] In addition, according to at least one embodiment of the present application, the positioning measurement is a UE transceiver time difference measurement.

[0016] The at least two measurement objects include a first downlink positioning reference signal DL-PRS and a first sounding reference signal for positioning SRS-Pos.

[0017] Further, according to at least one of the embodiments of this application, the first device sends at least two direct path or non-direct path indication information corresponding to the positioning measurement to the positioning server, in particular:

[0018] The terminal sends direct path or non-direct path indication information of a wireless link associated with the first DL-PRS to the positioning server, and the TRP sends direct path or non-direct path indication information of a wireless link associated with the first SRS-Pos to the positioning server.

[0019] Further, according to at least one of the embodiments of this application, the positioning measurement is a TRP transceiving time difference measurement;

[0020] The at least two measurement objects include a second DL-PRS and a second SRS-Pos.

[0021] Further, according to at least one of the embodiments of this application, the first device sends at least two direct path or non-direct path indication information corresponding to the positioning measurement to the positioning server, in particular:

[0022] The terminal sends direct path or non-direct path indication information of a wireless link associated with the second DL-PRS to the positioning server, and the TRP sends direct path or non-direct path indication information of a wireless link associated with the second SRS-Pos to the positioning server.

[0023] Further, according to at least one of the embodiments of this application, the first device sends direct path or non-direct path indication information corresponding to the positioning measurement to the positioning server, including:

[0024] When sending a plurality of positioning measurements, a first direct path or non-direct path indication information is generated according to the direct path or non-direct path indication information corresponding to the plurality of positioning measurements and sent to the positioning server.

[0025] Further, according to at least one of the embodiments of this application, a first direct path or non-direct path indication information is generated according to the direct path or non-direct path indication information corresponding to the at least one positioning measurement, including any one of:

[0026] In the case where the direct path or non-direct path attribute is a direct path probability or a non-direct path probability, the probability indicated by the first direct path or non-direct path indication information is positively correlated with the minimum value of the direct path probability or the maximum value of the non-direct path probability;

[0027] In a case where the direct or indirect attribute is direct or indirect, the first direct or indirect indication information indicates direct only when all the direct or indirect indication information corresponding to the at least one positioning measurement indicates direct, otherwise, the first direct or indirect indication information indicates indirect;

[0028] In a case where the direct or indirect attribute is a probability of direct or a probability of indirect, the probability indicated by the first direct or indirect indication information is a preset function of the direct or indirect indication information corresponding to the at least one positioning measurement.

[0029] In addition, according to at least one embodiment of the present application, further comprising:

[0030] The first device sends first indication information to the positioning server, the first indication information being used to indicate that the direct or indirect indication information is a hard value or a soft value, the hard value including that the direct or indirect attribute is direct or indirect, and the soft value including a probability that the direct or indirect attribute is direct or indirect.

[0031] In addition, according to at least one embodiment of the present application, the value range of the direct or indirect indication information includes at least one of 0, 1 and null, wherein 0 represents direct, 1 represents indirect, or 1 represents direct and 0 represents indirect, and null represents that the direct or indirect attribute is unknown.

[0032] In addition, according to at least one embodiment of the present application, in a case where the direct or indirect indication information is a soft value, the direct or indirect indication information is indicated by N bits, N being a preset positive integer; each value of the N bits corresponds to one of 2 N values or intervals in the interval [0, 1], and in a case where the soft value is a probability of direct, the probability of direct is positively related to the soft value, and in a case where the soft value is a probability of indirect, the probability of indirect is positively related to the soft value.

[0033] In addition, according to at least one embodiment of the present application, each value or interval in the interval [0, 1] is predefined, and the correspondence between each value of the N bits and each value or interval in the interval [0, 1] is also predefined.

[0034] In addition, according to at least one embodiment of the present application, further comprising:

[0035] The first device sends second indication information to the positioning server, the second indication information being used to indicate the confidence of the direct or indirect indication information.

[0036] In addition, according to at least one embodiment of the present application, the confidence is indicated by M bits, M being a preset positive integer; each value of the M bits corresponds to one of 2 M values in the interval [0%, 100%].

[0037] In addition, according to at least one embodiment of the present application, each value in the interval [0%, 100%] is predefined, and the correspondence between each value of the M bits and each value in the interval [0%, 100%] is also predefined.

[0038] In addition, according to at least one embodiment of the present application, the direct or indirect indication information is associated with all positioning measurement quantities of one UE-TRP pair, the UE-TRP pair including one terminal and one TRP.

[0039] According to another aspect of the present application, at least one embodiment provides a receiving method of direct or indirect indication information, comprising:

[0040] A positioning server receives direct or indirect indication information corresponding to a positioning measurement quantity sent by a first device, wherein the first device includes at least one of a terminal, a base station and a TRP, the direct or indirect indication information is used to indicate a direct or indirect attribute of a wireless link associated with the positioning measurement quantity, and the direct or indirect attribute includes at least one of the following: direct; indirect; probability of direct; probability of indirect.

[0041] In addition, according to at least one embodiment of the present application, the positioning server receives the positioning measurement quantity sent by the first device to the server; and the positioning server performs positioning according to the positioning measurement quantity and the direct or indirect indication information corresponding to the positioning measurement quantity.

[0042] In addition, according to at least one embodiment of the present application, the receiving of the direct or indirect indication information corresponding to the positioning measurement quantity sent by the first device comprises:

[0043] Receiving at least two direct or indirect indication information corresponding to a positioning measurement quantity sent by a first device for one positioning measurement quantity, wherein the positioning measurement quantity is associated with at least two measurement objects, and each direct or indirect indication information is associated with a wireless link associated with one measurement object.

[0044] In addition, according to at least one embodiment of the present application, the positioning measurement quantity is a DL-RSTD measurement quantity.

[0045] The at least two measurement objects include a reference measurement object and a relative measurement object; and the reference measurement object is a reference TRP, and the relative measurement object is a measurement TRP; or the reference measurement object is a reference time, and the relative measurement object is a measurement time or a downlink time difference of arrival (DL-TDOA).

[0046] In addition, according to at least one embodiment of the present application, the direct path or non-direct path indication information corresponding to the positioning measurement quantity sent by the first device further includes:

[0047] When receiving the at least one positioning measurement quantity, the direct path or non-direct path indication information of the wireless link associated with the same reference measurement object sent by the first device is received, and the direct path or non-direct path indication information of the wireless link associated with each relative measurement object sent by the first device for each relative measurement object is received.

[0048] In addition, according to at least one embodiment of the present application, the positioning measurement quantity is a UE transceiver time difference measurement quantity.

[0049] The at least two measurement objects include a first DL-PRS and a first SRS-Pos.

[0050] In addition, according to at least one embodiment of the present application, the at least two direct path or non-direct path indication information corresponding to the positioning measurement quantity sent by the first device for one positioning measurement quantity specifically includes:

[0051] The direct path or non-direct path indication information of the wireless link associated with the first DL-PRS sent by the terminal is received, and the direct path or non-direct path indication information of the wireless link associated with the first SRS-Pos sent by the TRP is received.

[0052] In addition, according to at least one embodiment of the present application, the positioning measurement quantity is a TRP transceiver time difference measurement quantity.

[0053] The at least two measurement objects include a second DL-PRS and a second SRS-Pos.

[0054] In addition, according to at least one embodiment of the present application, the at least two direct path or non-direct path indication information corresponding to the positioning measurement quantity sent by the first device for one positioning measurement quantity specifically includes:

[0055] The direct path or non-direct path indication information of the wireless link associated with the second DL-PRS sent by the terminal is received, and the direct path or non-direct path indication information of the wireless link associated with the second SRS-Pos sent by the TRP is received.

[0056] Further, according to at least one embodiment of the present application, the direct or indirect indication information corresponding to the positioning measurement sent by the first device comprises:

[0057] When receiving a plurality of positioning measurements, the first direct or indirect indication information sent by the first device is received, and the first direct or indirect indication information is generated according to the direct or indirect indication information corresponding to the plurality of positioning measurements.

[0058] Further, according to at least one embodiment of the present application, the method further comprises:

[0059] The first indication information sent by the first device is received, and the first indication information is used to indicate that the direct or indirect indication information is a hard value or a soft value, the hard value includes that the direct or indirect attribute is a direct or indirect, and the soft value includes a probability that the direct or indirect attribute is a direct or indirect.

[0060] Further, according to at least one embodiment of the present application, the method further comprises:

[0061] The second indication information sent by the first device is received, and the second indication information is used to indicate a confidence of the direct or indirect indication information.

[0062] Further, according to at least one embodiment of the present application, the direct or indirect indication information is associated with all positioning measurements of a UE-TRP pair, and the UE-TRP pair includes a terminal and a TRP.

[0063] According to another aspect of the present application, at least one embodiment provides a first device, the first device includes at least one of a terminal, a base station and a transceiver point TRP, and the first device includes a memory, a transceiver and a processor, wherein,

[0064] The memory is used to store a computer program;

[0065] The transceiver is used to transceive data under the control of the processor;

[0066] The processor is used to read the computer program in the memory and perform the following operations:

[0067] The direct or indirect indication information corresponding to the positioning measurement is sent to a positioning server, and the direct or indirect indication information is used to indicate a direct or indirect attribute of a wireless link associated with the positioning measurement, and the direct or indirect attribute includes at least one of the following: direct; indirect; probability of direct; probability of indirect.

[0068] According to another aspect of the present application, at least one embodiment provides a first device, the first device comprising at least one of a terminal, a base station and a TRP, the first device comprising:

[0069] a first sending unit, configured to send, to a positioning server, direct path or non-direct path indication information corresponding to a positioning measurement quantity, wherein the direct path or non-direct path indication information is used to indicate a direct path or non-direct path attribute of a wireless link associated with the positioning measurement quantity, and the direct path or non-direct path attribute comprises at least one of the following: a direct path; a non-direct path; a probability of a direct path; and a probability of a non-direct path.

[0070] According to another aspect of the present application, at least one embodiment provides a positioning server, comprising a memory, a transceiver and a processor, wherein,

[0071] the memory is configured to store a computer program;

[0072] the transceiver is configured to transceive data under control of the processor;

[0073] the processor is configured to read the computer program in the memory and perform the following operations:

[0074] receive, from a first device, direct path or non-direct path indication information corresponding to a positioning measurement quantity, wherein the first device comprises at least one of a terminal, a base station and a TRP, and the direct path or non-direct path indication information is used to indicate a direct path or non-direct path attribute of a wireless link associated with the positioning measurement quantity, and the direct path or non-direct path attribute comprises at least one of the following: a direct path; a non-direct path; a probability of a direct path; and a probability of a non-direct path.

[0075] According to another aspect of the present application, at least one embodiment provides a positioning server, comprising:

[0076] a first receiving unit, configured to receive, from a first device, direct path or non-direct path indication information corresponding to a positioning measurement quantity, wherein the first device comprises at least one of a terminal, a base station and a TRP, and the direct path or non-direct path indication information is used to indicate a direct path or non-direct path attribute of a wireless link associated with the positioning measurement quantity, and the direct path or non-direct path attribute comprises at least one of the following: a direct path; a non-direct path; a probability of a direct path; and a probability of a non-direct path.

[0077] According to another aspect of the present application, at least one embodiment provides a processor-readable storage medium, the processor-readable storage medium storing a computer program, the computer program being used to cause the processor to perform the method as described above.

[0078] Compared with the prior art, the method for sending straight path or non-straight path indication information, the method for receiving straight path or non-straight path indication information and the device provided by the embodiment of the application can report at least two LOS / NLOS indication information associated with a certain positioning measurement to a positioning server, so as to assist the positioning server in positioning UE, so that the positioning server can select a suitable positioning measurement or perform compensation according to the multiple LOS / NLOS indication information when calculating the position of the terminal, thereby more accurately estimating the position of the UE, avoiding the influence of non-straight path on the accuracy of terminal position calculation, and improving the positioning accuracy of the positioning server when estimating the position of the UE. BRIEF DESCRIPTION OF DRAWINGS

[0079] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The detailed description is made with reference to the accompanying drawings.

[0080] Figure 1 An example diagram for 2-dimensional UE positioning by using NR DL-TDOA;

[0081] Figure 2 A flowchart of a method for sending LOS / NLOS indication information according to an embodiment of the application;

[0082] Figure 3 A flowchart of a method for receiving LOS / NLOS indication information according to an embodiment of the application;

[0083] Figure 4 An application scenario diagram of example 1 according to an embodiment of the application;

[0084] Figure 5 An application scenario diagram of example 2 according to an embodiment of the application;

[0085] Figure 6 An application scenario diagram of example 3 according to an embodiment of the application;

[0086] Figure 7 An application scenario diagram of example 5 according to an embodiment of the application;

[0087] Figure 8 An application scenario diagram of example 6 according to an embodiment of the application;

[0088] Figure 9 A structural diagram of a first device according to an embodiment of the application;

[0089] Figure 10Another structural schematic view of the first device provided by the embodiment of the present application is shown in FIG. 2B.

[0090] Figure 11 Another structural schematic view of the positioning server provided by the embodiment of the present application is shown in FIG. 4B.

[0091] Figure 12 Another structural schematic view of the positioning server provided by the embodiment of the present application is shown in FIG. 4B. DETAILED DESCRIPTION

[0092] Exemplary embodiments of the present application will be described more fully hereinafter with reference to the accompanying drawings. While example embodiments of the present application are shown in the drawings, it is to be understood that the present application can be embodied in various forms without being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present application to those skilled in the art.

[0093] The terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and do not necessarily have a particular chronological, sequential, or hierarchical order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and embodiments of the application described herein are capable of operation in other sequences than those described or otherwise suggested herein. Furthermore, the terms "comprise", "have" and any variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises, has or includes a list of steps or elements does not include only those steps or elements but can include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. "And / or" as used in the specification and in the claims, indicates at least one of the items so conjoined.

[0094] The technology described herein is not limited to NR systems and Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used for various wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. UTRA includes Wideband-CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement a radio technology such as Global System for Mobile Communications (GSM). An OFDMA system can implement a radio technology such as Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS). LTE and LTE-Advanced (e.g., LTE-A) are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2).The techniques described herein can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies. The description below, however, describes NR systems for purposes of example, and NR terminology is used in much of the description below, although the techniques are applicable beyond NR systems.

[0095] The following description provides examples, and is not limiting of the scope, applicability, or configuration set forth in the claims. Changes can be made in the function and arrangement of elements discussed without departing from the scope and spirit of aspects of the disclosure. Various examples can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different from that described, and other steps can be added, omitted, or combined. Also, features described with respect to certain examples can be combined in other examples.

[0096] In the prior art positioning method, the downlink-time difference of arrival (DL-TDOA) positioning method is an important positioning method, the working principle of the DL-TDOA positioning method is: multiple transmit and receive points (TRPs) send downlink positioning reference signals (DL-PRS), and a UE can receive signals of the multiple TRPs, the UE receives and measures time of arrivals (TOAs) of the DL-PRS from the multiple TRPs, the UE obtains a downlink-reference signal time difference (DL-RSTD) through calculation of two TOAs, and then reports the DL-RSTD to a location management function (LMF), the LMF calculates a position of the UE by using multiple DL-RSTDs and then adding other known information (for example, geographical coordinates of the TRPs).

[0097] In DL-TDOA positioning method, UE knows the configuration information of TRPs around UE sending downlink positioning reference signals (DL-PRS) according to the DL-TDOA assistance data provided by LMF, and obtains the downlink positioning reference signal time difference of arrival (DL-PRS RSTD) by receiving the DL-PRS sent by each TRP. Then, the UE calculates the position of the UE by using the DL-PRS RSTD obtained by the UE and other known information (such as the geographic coordinates of the TRP) in a network-based positioning manner or a UE-based positioning manner. If the network-based positioning manner is used, the UE reports the obtained DL-PRS RSTD measurement to the LMF, and the LMF calculates the position of the UE by using the reported measurement and other known information (such as the geographic coordinates of the TRP). If the UE-based positioning manner is used, the UE calculates the position of the UE itself by using the obtained DL-PRS RSTD and other information provided by the network (such as the geographic coordinates of the TRP).

[0098] The Rel-16 New Radio (NR) standard does not define the specific algorithm of NR DL-TDOA positioning. Each DL-PRS RSTD measurement is the difference between the arrival times of the DL-PRS received by the UE from two TRPs (one of which is the reference TRP). Each DL-PRS RSTD measurement (when converted to distance) can form a hyperbola, the foci of which are the positions of the two TRPs, and the difference between the distances from any point on the hyperbola to the two TRPs is the RSTD measurement. The UE is located at a certain point on the hyperbola. If the UE obtains N-1 DL-PRS RSTD measurements from N TRPs, it can form a system of N-1 hyperbolic equations. The position of the UE can be obtained by solving the system of hyperbolic equations.

[0099] Figure 1 For the example of 2-dimensional UE positioning using NR DL-TDOA, the UE obtains two DL-PRS RSTD measurements RTSD 2,1 and RTSD 3,1 from three TRPs (assuming TRP1 is the reference TRP). The two hyperbolas are formed by RTSD 2,1 and RTSD 3,1 . The position of the UE can be obtained by solving the intersection of the two hyperbolas.

[0100] Generally, each DL-PRS RSTD measurement has a certain measurement error. Thus, when using NR DL-TDOA positioning, it is desirable for the UE to obtain more and more accurate RSTD measurements from more TRPs to reduce the impact of measurement error on the UE position solution and obtain a more accurate UE position. This requires reasonable and optimized design of DL-PRS signals (such as signal sequences, mapping patterns, muting patterns, etc.) to allow the UE to receive DL-PRS signals from as many TRPs as possible and obtain accurate RSTD measurements. In addition, the NR DL-TDOA positioning method requires accurate time synchronization between TRPs, and the accuracy of time synchronization between TRPs will directly affect the positioning performance of NR DL-TDOA.

[0101] As described above, in the prior art DL-TDOA positioning method, in order to complete the calculation of one DL-RSTD measurement, the UE needs to receive the DL-PRS sent by two TRPs, and then the UE can complete the measurement of two TOAs and the final calculation of DL-RSTD based on the two DL-PRS. However, for the DL-PRS from two different TRPs, they may experience two different wireless channels, and the LOS / NLOS states of the two different wireless channels may be different, and whether the wireless channel experienced by the positioning reference signal is a direct path (LOS, also known as line of sight) or a non-direct path (NLOS, also known as non-line of sight) is very important information that LMF must have to improve positioning accuracy. Therefore, it is necessary to solve the problem of how to inform the LMF of the LOS / NLOS states of the two different wireless channels corresponding to the same DL-RSTD measurement in this case.

[0102] In addition, for the UE transmission-reception time difference measurement, since the time when the UE receives the DL-PRS and the time when the UE transmits the Sounding Reference Signal for Positionling (SRS-Pos) for positioning may differ greatly, resulting in different LOS / NLOS states of the wireless channels experienced by the DL-PRS and the SRS-Pos, it is also necessary to solve the problem of how to inform the LMF of the LOS / NLOS states of the two different wireless channels corresponding to the same UE transmission-reception time difference measurement in this case. For gNB transmission-reception time difference measurement, there is a similar problem.

[0103] Based on the above problems, the embodiment of the present application proposes a method for sending direct path indication information. Compared with the prior art, the first device (at least one of UE, TRP and base station) can report at least two LOS / NLOS indication information associated with a certain positioning measurement to the positioning server (such as LMF) to assist the positioning server in positioning the UE, so that the positioning server can select to use appropriate positioning measurement or perform compensation according to the multiple LOS / NLOS indication information when calculating the position of the terminal, thereby more accurately estimating the position of the UE, avoiding the influence of non-direct path on the accuracy of terminal position calculation, and thereby improving the positioning accuracy of the LMF when estimating the position of the UE.

[0104] Please refer to Figure 2 The method for sending LOS / NLOS indication information provided by the embodiment of the present application, when applied to the first device side, comprises the following steps.

[0105] Step 21, the first device sends direct path or non-direct path indication information (LOS / NLOS indication information) corresponding to the positioning measurement to the positioning server.

[0106] Here, the first device specifically includes at least one of a terminal, a base station and a transceiving point TRP. The direct path or non-direct path indication information is used to indicate the direct path or non-direct path attribute of the wireless link associated with the positioning measurement, and the direct path or non-direct path attribute includes at least one of the following: direct path; non-direct path; probability of direct path; probability of non-direct path.

[0107] In addition, the first device can also send the positioning measurement to the positioning server, so that the positioning server can perform positioning according to the positioning measurement and the direct path or non-direct path indication information corresponding to the positioning measurement.

[0108] Through the above steps, the embodiment of the present application sends the direct path or non-direct path indication information corresponding to the positioning measurement to the positioning server through the first device, to indicate the direct path or non-direct path attribute of the wireless link associated with the positioning measurement, thereby assisting the positioning server in positioning the UE, so that the positioning server can select to use appropriate positioning measurement or perform compensation according to the multiple direct path or non-direct path indication information when calculating the position of the terminal, thereby more accurately estimating the position of the UE, avoiding the influence of non-direct path on the accuracy of terminal position calculation, and thereby improving the positioning accuracy of the positioning server when estimating the position of the UE.

[0109] For example, after obtaining the multiple positioning measurement quantities reported by the first device and the corresponding direct path or non-direct path indication information, the positioning server directly discards the positioning measurement quantities whose direct path or non-direct path indication information is NLOS or the NLOS probability is greater than a preset probability (such as 50%), and only uses the positioning measurement quantities whose direct path or non-direct path indication information is LOS or the NLOS probability is not greater than the preset probability (such as 50%) to perform positioning calculation, so as to avoid the influence of the NLOS path on the terminal position calculation accuracy, thereby improving the positioning accuracy of the LMF in estimating the UE position.

[0110] The following gives multiple implementation manners of the above step 21.

[0111] In the first implementation manner, the embodiment of the present application is directed to positioning measurement quantities such as DL RSTD involving multiple TRPs or multiple reference signals, and the first device can report multiple LOS / NLOS indication information.

[0112] Specifically, in the above step 21, the first device can send, to the positioning server, at least two direct path or non-direct path indication information corresponding to one positioning measurement quantity, wherein the positioning measurement quantity is associated with at least two measurement objects, and each direct path or non-direct path indication information is associated with a wireless link associated with one measurement object.

[0113] For example, the positioning measurement quantity can be a DL-RSTD measurement quantity. At this time, the at least two measurement objects include a reference measurement object and a relative measurement object; wherein the reference measurement object is a reference TRP, and the relative measurement object is a measurement TRP; or the reference measurement object is a reference time, and the relative measurement object is a measurement time or a downlink time difference of arrival DL-TDOA. The reference time refers to the time of receiving the downlink positioning reference signal sent by the reference TRP.

[0114] In addition, in order to reduce the overhead of information transmission, when transmitting the at least one positioning measurement quantity (a plurality of DL-RSTD measurement quantities), the first device can transmit the direct or indirect indication information of the wireless link associated with the same reference measurement object (reference TRP or reference time) to the positioning server, and transmit the direct or indirect indication information of the wireless link associated with each relative measurement object (measurement TRP or DL-TDOA) respectively. That is, the reference measurement object associated with the at least one positioning measurement quantity is the same, and the relative measurement objects are different; in this way, the first device can transmit the direct or indirect indication information of the wireless link associated with the reference measurement object to the positioning server once when transmitting, and transmit the direct or indirect indication information of the wireless link associated with each relative measurement object respectively, thereby saving the overhead of transmitting the direct or indirect indication information of the wireless link associated with the reference measurement object.

[0115] More specifically, the direct or indirect indication information of the wireless link associated with the reference measurement object is carried in a first information element IE, and the first information element IE includes signal measurement information NR-DL-TDOA-SignalMeasurementInformation-r17. The direct or indirect indication information of the wireless link associated with the first relative measurement object can be carried in a measurement element signaling (NR-DL-TDOA-MeasElement-r17); and the direct or indirect indication information of the wireless link associated with the remaining relative measurement objects is carried in additional measurement element signaling (NR-DL-TDOA-AdditionalMeasurements-r17).

[0116] For another example, the positioning measurement quantity can be a UE reception-transmission time difference measurement quantity. At this time, the at least two measurement objects include a first DL-PRS and a first SRS-Pos. In the above step 21, the first device can transmit the direct or indirect indication information of the wireless link associated with the first DL-PRS to the positioning server, and the TRP can transmit the direct or indirect indication information of the wireless link associated with the first SRS-Pos to the positioning server.

[0117] For example, the positioning measurement quantity can be a TRP reception time difference measurement quantity. In this case, the at least two measurement objects include a second DL-PRS and a second SRS-Pos. In the step 21, the terminal can send, to the positioning server, the direct or indirect indication information of the wireless link associated with the second DL-PRS, and the TRP can send, to the positioning server, the direct or indirect indication information of the wireless link associated with the second SRS-Pos.

[0118] In the second implementation, the embodiment of the present application is directed to a plurality of direct or indirect indication information involved in the measurement quantity such as DL RSTD of multiple TRPs or multiple reference signals, the plurality of direct or indirect indication information is integrated into a single direct or indirect indication information, and then the first device reports the single direct or indirect indication information.

[0119] Specifically, in the step 21, when the plurality of positioning measurement quantities are sent, the first device generates a first direct or indirect indication information according to the direct or indirect indication information corresponding to the at least one positioning measurement quantity, and sends the first direct or indirect indication information to the positioning server.

[0120] Here, the generation of the first direct or indirect indication information according to the direct or indirect indication information corresponding to the at least one positioning measurement quantity includes any one of the following:

[0121] 1) In the case where the direct or indirect attribute is a direct probability or an indirect probability, the probability indicated by the first direct or indirect indication information is positively correlated with the minimum value of the direct probability or the maximum value of the indirect probability.

[0122] In the case where the direct or indirect attribute is a direct probability, the direct or indirect indication information corresponding to the at least one positioning measurement quantity is a direct probability, and thus there are a plurality of direct probabilities. When the first direct or indirect indication information is generated according to the plurality of direct probabilities, the probability indicated by the first direct or indirect indication information (i.e., the direct probability) is positively correlated with the minimum value of the plurality of direct probabilities, that is, the smaller the minimum value, the smaller the probability indicated by the first direct or indirect indication information; on the contrary, the larger the minimum value, the larger the probability indicated by the first direct or indirect indication information.

[0123] Similarly, in the case that the probability of non-line-of-sight is used as the line-of-sight or non-line-of-sight attribute, the line-of-sight or non-line-of-sight indication information corresponding to the plurality of positioning measurement quantities is all the probability of non-line-of-sight, so there are a plurality of probabilities of non-line-of-sight. When the first line-of-sight or non-line-of-sight indication information is generated according to the plurality of probabilities of non-line-of-sight, the probability indicated by the first line-of-sight or non-line-of-sight indication information (i.e. the probability of non-line-of-sight) is positively correlated with the maximum value in the plurality of probabilities of non-line-of-sight, that is, the smaller the maximum value is, the smaller the probability indicated by the first line-of-sight or non-line-of-sight indication information is; on the contrary, the larger the maximum value is, the larger the probability indicated by the first line-of-sight or non-line-of-sight indication information is. For example, if the probability of non-line-of-sight (soft value, i.e. a value between the interval [0, 1]) is reported, the first device can report the probability value with the largest possibility of non-line-of-sight in the plurality of probabilities of non-line-of-sight.

[0124] 2) In the case that the line-of-sight or non-line-of-sight attribute is line-of-sight or non-line-of-sight, only when the line-of-sight or non-line-of-sight indication information corresponding to the at least one positioning measurement quantity all indicates line-of-sight, the first line-of-sight or non-line-of-sight indication information indicates line-of-sight, otherwise, the first line-of-sight or non-line-of-sight indication information indicates non-line-of-sight.

[0125] For example, if a hard value (i.e. 0 or 1, used to indicate line-of-sight or non-line-of-sight) is reported, only when all the line-of-sight or non-line-of-sight indication information indicates line-of-sight, the value corresponding to line-of-sight is reported, otherwise, the value corresponding to non-line-of-sight is reported.

[0126] 3) In the case that the line-of-sight or non-line-of-sight attribute is the probability of line-of-sight or the probability of non-line-of-sight, the probability indicated by the first line-of-sight or non-line-of-sight indication information is a preset function with the line-of-sight or non-line-of-sight indication information corresponding to the at least one positioning measurement quantity as a variable.

[0127] For example, a function value (such as an average value) with the plurality of line-of-sight or non-line-of-sight indication information as a variable is reported as the final reported line-of-sight or non-line-of-sight indication information.

[0128] In the embodiments of the present application, the line-of-sight or non-line-of-sight indication information can be represented in the form of a hard value or a soft value. The hard value specifically includes the line-of-sight or non-line-of-sight attribute being line-of-sight or non-line-of-sight, and the soft value includes the probability of the line-of-sight or non-line-of-sight attribute being line-of-sight or non-line-of-sight. That is, the hard value directly indicates line-of-sight or non-line-of-sight, while the soft value indicates the possibility of line-of-sight or non-line-of-sight. For example, the hard value is 0 or 1, wherein 0 and 1 respectively represent LOS and NLOS, or NLOS and LOS. The soft value is a value between the interval [0, 1], representing the probability of LOS or NLOS.

[0129] The specific manner of using hard value or soft value can be previously agreed or notified by a notification mechanism. In the above method of the embodiment of the application using the notification mechanism, the first device can further send first indication information to the positioning server, the first indication information being used to indicate that the direct path or non-direct path indication information is a hard value or a soft value.

[0130] Here, regardless of using hard value or soft value, the value range of the direct path or non-direct path indication information generally includes at least one of 0, 1 and null, wherein 0 represents one of the direct path and the non-direct path, 1 represents the other one of the direct path or the non-direct path, i.e., 0 represents the direct path and 1 represents the non-direct path, or 1 represents the direct path and 0 represents the non-direct path, and null represents that the direct path or non-direct path attribute is unknown, i.e., the first device cannot determine the specific value of the direct path or non-direct path indication information.

[0131] In the case that the direct path or non-direct path indication information is a soft value, the direct path or non-direct path indication information can be indicated by N bits, N being a preset positive integer; each value of the N bits corresponds to one of 2 N values or intervals in the interval [0, 1], and in the case that the soft value is the probability of the direct path, the probability of the direct path is positively correlated with the soft value; in the case that the soft value is the probability of the non-direct path, the probability of the non-direct path is positively correlated with the soft value. For example, the greater the soft value of the direct path or non-direct path indication information, the higher the LOS probability or the higher the NLOS probability.

[0132] In addition, if the direct path or non-direct path indication information is a soft value, each value or interval in the interval [0, 1] is predefined, and the correspondence between each value of the N bits and each value or interval in the interval [0, 1] is also predefined. For example, assuming that the 8 possible values in the interval [0, 1] are {0, 0.1, 0.3, 0.5, 0.7, 0.9, 1, NULL}, or the 8 possible intervals in the interval [0, 1] are {0, (0, 0.1], (0.1, 0.3], (0.3, 0.5], (0.5, 0.7], (0.7, 0.9], (0.9, 1], NULL}.

[0133] In the method, the first device can further send second indication information to the positioning server, and the second indication information is used to indicate the confidence of the direct path or non-direct path indication information. The confidence is used to represent the reliability of the direct path or non-direct path indication information, and is used for reference by the positioning server when used. For example, only the direct path or non-direct path indication information with a confidence higher than a preset threshold is retained, and the direct path or non-direct path indication information with a confidence not higher than the preset threshold is discarded. Then, for the retained direct path or non-direct path indication information, the corresponding positioning measurement quantity is discarded. For example, for a positioning measurement quantity with NLOS or NLOS probability greater than a preset probability (such as 50%), the direct path or non-direct path indication information is directly discarded and is not used, and only the positioning measurement quantity with LOS or NLOS probability not greater than the preset probability (such as 50%) is used for positioning calculation. The influence of the NLOS path on the accuracy of terminal position calculation can be avoided, and the positioning accuracy of the LMF when estimating the UE position is improved.

[0134] Here, the confidence can be indicated by M bits, and M is a preset positive integer. Each value of the M bits corresponds to one of 2M values in the interval [0%, 100%]. M That is, the confidence is expressed in percentage. For example, the UE reports a certain direct path or non-direct path indication information with a confidence of 95%.

[0135] Similarly, each value in the interval [0%, 100%] is predefined, and the correspondence between each value of the M bits and each value in the interval [0%, 100%] is also predefined. For example, the 8 possible values in the above interval are {10%, 20%, 30%, 50%, 70%, 80%, 90%, 100%}.

[0136] In the embodiment of the application, the first device can also independently report the direct path or non-direct path indication information. In this case, the direct path or non-direct path indication information is not attached to a specific measurement quantity. For example, the first device independently reports the direct path or non-direct path indication information (LOS / NLOS indication information), which indicates the LOS path probability (or NLOS path probability) between the UE and the TRP, is associated with a “UE-TRP pair” composed of one UE and one TRP, and is not associated with a specific positioning measurement quantity. Therefore, it is applicable to all positioning measurement quantities. That is, the direct path or non-direct path indication information is associated with all positioning measurement quantities of a UE-TRP pair, and the UE-TRP pair includes one terminal and one TRP.

[0137] In addition, the direct path or non-direct path indication information can be sent jointly with Timing Error Group (TEG) information or independently of the TEG information.

[0138] The method of the embodiment of the application is described above from the first device side. The implementation process of the positioning server side is further described below.

[0139] Referring to Figure 3 The receiving method of the direct path or non-direct path indication information provided by the embodiment of the application comprises the following steps when applied to the positioning server side:

[0140] In step 31, the positioning server receives the direct path or non-direct path indication information corresponding to the positioning measurement quantity sent by the first device.

[0141] Here, the first device comprises at least one of a terminal, a base station and a TRP, the direct path or non-direct path indication information is used to indicate the direct path or non-direct path attribute of the wireless link associated with the positioning measurement quantity, and the direct path or non-direct path attribute comprises at least one of the following: direct path; non-direct path; probability of direct path; probability of non-direct path.

[0142] In addition, the positioning server can further receive the positioning measurement quantity sent by the first device to the server, and then perform terminal positioning according to the positioning measurement quantity and the direct path or non-direct path indication information corresponding to the positioning measurement quantity.

[0143] Through the above steps, the positioning server can obtain the direct path or non-direct path indication information corresponding to the positioning measurement quantity, so that the positioning server can select to use appropriate positioning measurement quantity or perform compensation according to the direct path or non-direct path indication information when calculating the terminal position, thereby more accurately estimating the position of the UE, avoiding the influence of the non-direct path on the accuracy of the terminal position calculation, and improving the positioning accuracy of the positioning server when estimating the position of the UE.

[0144] For example, after the positioning server obtains the multiple positioning measurement quantities reported by the first device and the corresponding direct path or non-direct path indication information, for the positioning measurement quantity whose direct path or non-direct path indication information is NLOS or the probability of NLOS is greater than a preset probability (such as 50%), the positioning server directly discards it and only uses the positioning measurement quantity whose direct path or non-direct path indication information is LOS or the probability of NLOS is not greater than the preset probability (such as 50%) to perform positioning calculation, which can avoid the influence of the NLOS path on the accuracy of the terminal position calculation and improve the positioning accuracy of the LMF when estimating the position of the UE.

[0145] Corresponding to the first mode described above, in the step 31 described above, the positioning server can receive at least two direct or indirect indication information corresponding to the positioning measurement corresponding to the positioning measurement sent by the first device, wherein the positioning measurement is associated with at least two measurement objects, and each direct or indirect indication information is associated with a wireless link associated with a measurement object.

[0146] For example, the positioning measurement can be a DL-RSTD measurement. At this time, the at least two measurement objects include a reference measurement object and a relative measurement object; wherein the reference measurement object is a reference TRP, and the relative measurement object is a measurement TRP; or the reference measurement object is a reference time, and the relative measurement object is a measurement time or a downlink time difference of arrival DL-TDOA. The reference time refers to the time of receiving the downlink positioning reference signal sent by the reference TRP.

[0147] In this way, when receiving multiple positioning measurements, when receiving at least one positioning measurement, the direct or indirect indication information of the wireless link associated with the same reference measurement object sent by the first device is received, and the direct or indirect indication information of the wireless link associated with each relative measurement object sent by the first device for each relative measurement object is received.

[0148] Specifically, the direct or indirect indication information of the wireless link associated with the reference measurement object is carried in a first information element IE, and the first information element IE includes signal measurement information NR-DL-TDOA-SignalMeasurementInformation-r17. The direct or indirect indication information of the wireless link associated with the first relative measurement object can be carried in a measurement element signaling (NR-DL-TDOA-MeasElement-r17); and the direct or indirect indication information of the wireless link associated with the remaining relative measurement objects is carried in additional measurement element signaling (NR-DL-TDOA-AdditionalMeasurements-r17).

[0149] For another example, the positioning measurement can be a UE transmit-receive time difference measurement. At this time, the at least two measurement objects include a first DL-PRS and a first SRS-Pos. In the step 31 described above, the positioning server can receive the direct or indirect indication information of the wireless link associated with the first DL-PRS sent by the terminal, and receive the direct or indirect indication information of the wireless link associated with the first SRS-Pos sent by the TRP.

[0150] For another example, the positioning measurement quantity can be a TRP reception time difference measurement quantity. In this case, the at least two measurement objects include a second DL-PRS and a second SRS-Pos. In step 31, the positioning server can receive, from the terminal, direct path or non-direct path indication information of a wireless link associated with the second DL-PRS, and receive, from the TRP, direct path or non-direct path indication information of a wireless link associated with the second SRS-Pos.

[0151] Corresponding to the second mode described above, in step 31, the positioning server can receive, when receiving a plurality of the positioning measurement quantities, first direct path or non-direct path indication information sent by the first device, the first direct path or non-direct path indication information being generated according to direct path or non-direct path indication information corresponding to the plurality of positioning measurement quantities. Wherein:

[0152] In the case where the direct path or non-direct path attribute is a direct path probability or a non-direct path probability, the probability indicated by the first direct path or non-direct path indication information is positively correlated with the minimum value in the direct path probability or the maximum value in the non-direct path probability;

[0153] In the case where the direct path or non-direct path attribute is a direct path or a non-direct path, the first direct path or non-direct path indication information indicates a direct path only when the direct path or non-direct path indication information corresponding to the plurality of positioning measurement quantities all indicate a direct path, otherwise, the first direct path or non-direct path indication information indicates a non-direct path;

[0154] In the case where the direct path or non-direct path attribute is a direct path probability or a non-direct path probability, the probability indicated by the first direct path or non-direct path indication information is a preset function of the direct path or non-direct path indication information corresponding to the plurality of positioning measurement quantities.

[0155] As described above, in the embodiments of the present application, the direct path or non-direct path indication information can be represented in the form of a hard value or a soft value. The positioning server can further receive first indication information sent by the first device, the first indication information being used to indicate that the direct path or non-direct path indication information is a hard value or a soft value, the hard value including that the direct path or non-direct path attribute is a direct path or a non-direct path, and the soft value including that the direct path or non-direct path attribute is a direct path probability or a non-direct path probability.

[0156] Wherein, the value range of the direct path or non-direct path indication information includes at least one of 0, 1 and null, wherein 0 represents one of a direct path and a non-direct path, 1 represents the other one of a direct path or a non-direct path, and null represents that the direct path or non-direct path attribute is unknown.

[0157] In addition, in the case that the direct or indirect indication information is a soft value, the direct or indirect indication information is indicated by N bits, N is a preset positive integer; each value of the N bits corresponds to one of 2 N values or intervals in the interval [0, 1], and in the case that the soft value is a direct probability, the direct probability is positively related to the soft value; in the case that the soft value is an indirect probability, the indirect probability is positively related to the soft value.

[0158] Optionally, each value or interval in the interval [0, 1] is predefined, and the correspondence between each value of the N bits and each value or interval in the interval [0, 1] is also predefined.

[0159] In the embodiment of the application, the positioning server can also receive second indication information sent by the first device, the second indication information being used to indicate the confidence of the direct or indirect indication information.

[0160] Specifically, the confidence is indicated by M bits, M is a preset positive integer; each value of the M bits corresponds to one of 2 M values in the interval [0%, 100%].

[0161] Optionally, each value in the interval [0%, 100%] is predefined, and the correspondence between each value of the M bits and each value in the interval [0%, 100%] is also predefined.

[0162] The confidence is used to represent the reliability of the direct or indirect indication information, which is used for reference by the positioning server when using, for example, the positioning server only retains the received direct or indirect indication information whose confidence is higher than a preset threshold, discards the direct or indirect indication information whose confidence is not higher than the preset threshold, and then performs discard processing on the corresponding positioning measurement quantity for the retained direct or indirect indication information, for example, for the positioning measurement quantity whose direct or indirect indication information is NLOS or NLOS probability is greater than a preset probability (such as 50%), directly discarding it, and only using the positioning measurement quantity whose direct or indirect indication information is LOS or NLOS probability is not greater than the preset probability (such as 50%) to perform positioning calculation, which can avoid the influence of NLOS path on the accuracy of terminal position calculation, thereby improving the positioning accuracy of LMF when estimating the position of UE.

[0163] In this embodiment of the invention, the direct or indirect path indication information is associated with all positioning measurements of a UE-TRP pair, which includes a terminal and a TRP. Optionally, the direct or indirect path indication information is transmitted jointly with Transceiver Timing Group (TEG) information, or transmitted independently of the TEG information.

[0164] The above-described method of the embodiments of the present invention will be further explained below through several more specific examples.

[0165] Example 1 (DL-RSTD measurement, UE reports multiple LOS / NLOS indication messages):

[0166] In Example 1:

[0167] For DL ​​RSTD positioning measurements, the UE reports two LOS / NLOS indication messages associated with the positioning measurement to the positioning server to assist the positioning server in completing UE positioning. The LOS / NLOS indication messages include the reference time in the measurement and information on whether the radio link corresponding to the measurement time is a LOS path, an NLOS path, a LOS path probability, or an NLOS path probability.

[0168] In Example 1, for DL ​​RSTD positioning measurements:

[0169] 1) For a reference time or reference TRP, the UE reports one LOS / NLOS indication message corresponding to that reference time or reference TRP;

[0170] 2) For each TDOA measurement or measurement TRP, the UE reports one LOS / NLOS indication message corresponding to each TDOA measurement or measurement TRP.

[0171] by Figure 4 For example, assuming TRP1 is the reference TRP, and the TOA1 obtained by the UE through measuring DL-PRS1 sent by TRP1 is the reference time, and the TOA2 obtained by the UE through measuring DL-PRS2 sent by TRP2 is the measurement time, then the positioning measurement quantity DL RSTD2 that the UE needs to measure and report is TOA2 - TOA1.

[0172] from Figure 4As can be seen, for the two downlink positioning reference signals, DL-PRS1 and DL-PRS2, received by the UE for calculating the DL RSTD2 positioning measurement, the wireless channels they experience are different. Since there is no obstacle blocking between TRP1 and UE1, there is a line-of-sight (LOS) propagation path between them, so the DL-PRS1 experiences an LOS channel, while there is an obstacle blocking between TRP2 and UE1, there is no line-of-sight (LOS) propagation path between them, so the DL-PRS2 experiences a non-line-of-sight (NLOS) channel. Thus, the LOS / NLOS indication information corresponding to the reference time, TOA1, obtained by UE1 measuring DL-PRS1 is LOS, while the LOS / NLOS indication information corresponding to the measurement time, TOA2, obtained by UE1 measuring DL-PRS2 is NLOS.

[0173] Therefore, for the DL RSTD2 measurement, the UE reports two LOS / NLOS indication information for the measurement, for the reference time (i.e., TOA1) or the reference TRP (i.e., TRP1), the UE reports one LOS / NLOS indication information (i.e., LOS) corresponding to the reference time or the reference TRP, and for the TDOA measurement value (i.e., DL RSTD2) or the measurement TRP (i.e., TRP2), the UE additionally reports one LOS / NLOS indication information (i.e., NLOS) corresponding to the TDOA measurement value (i.e., DL RSTD2) or the measurement TRP (i.e., TRP2).

[0174] Similarly, for other TDOA measurement values (i.e., DL RSTD3, DL RSTD4) or measurement TRPs (i.e., TRP3, TRP4), the UE reports one LOS / NLOS indication information (i.e., LOS, NLOS) corresponding to each TDOA measurement value or measurement TRP, respectively.

[0175] Of course, the LOS / NLOS indication information here can also be a probability value of LOS or NLOS, rather than a deterministic LOS or NLOS information.

[0176] Using the method in Example 1, the UE can report, to the positioning server LMF, for the DL RSTD positioning measurement, two LOS / NLOS indication information associated with the positioning measurement, corresponding to the reference time and the measurement time, respectively, so that the LMF can select to use a suitable positioning measurement or make compensation according to the two LOS / NLOS indication information when calculating the terminal position, so as to more accurately estimate the position of the UE, avoid the influence of the non-straight path on the accuracy of the terminal position calculation, and thus improve the positioning accuracy of the LMF when estimating the position of the UE.

[0177] Example 2 (UE transmit / receive time difference measurement, UE / TRP reports multiple LOS / NLOS indication messages):

[0178] In Example 2:

[0179] The UE or TRP, based on the UE's transmit / receive time difference (TRD) positioning measurement, reports two LOS / NLOS indication messages associated with this positioning measurement to the positioning server to assist the positioning server in completing UE positioning. The LOS / NLOS indication messages contain at least one of the following information: whether the radio link corresponding to the receive time and transmit time in the measurement is a LOS path, an NLOS path, a LOS path probability, or an NLOS path probability.

[0180] In this embodiment, the measurement quantity for UE transmit / receive time difference positioning is as follows:

[0181] For the reception time measured by the UE through receiving DL-PRS, the UE reports one LOS / NLOS indication message corresponding to that reception time;

[0182] For the transmission time measured by the UE through the transmission SRS-Pos, after receiving the SRS-Pos, the TRP reports a LOS / NLOS indication message corresponding to that transmission time.

[0183] by Figure 5 For example, TRP1 is a TRP involving UE transmit-receive time difference positioning measurement, and the UE obtains the DL-PRS1 reception time obtained by measuring the DL-PRS1 sent by TRP1, which is T. RX The transmission time of SRS-Pos1 by the UE is T. TX Therefore, the positioning measurement quantity that the UE needs to measure and report is the UE transmit / receive time difference = reception time T. RX -Sending time T TX .

[0184] from Figure 5As can be seen, since UE1 is in motion, it moves from "Position 1" to "Position 2" during the period of measuring the UE-RTT measurement quantity, the radio channel conditions experienced by the two positioning reference signals DL-PRS1 and SRS-Pos1 used for calculating the UE-RTT positioning measurement quantity are different. When UE1 receives DL-PRS1, it is at "Position 1", there is no obstacle blocking between TRP1 and UE1, and there is a line-of-sight (LOS) propagation path between them, so DL-PRS1 experiences an LOS channel. When UE1 transmits SRS-Pos1, it is at "Position 2", there is an obstacle blocking between TRP1 and UE1, and there is no line-of-sight (LOS) propagation path between them, so SRS-Pos1 experiences an NLOS channel. Thus, the reception time measured by UE1 for DL-PRS1, that is, T RX , the corresponding LOS / NLOS indication information is LOS. The transmission time corresponding to the transmission of SRS-Pos1 by UE1, that is, T TX , the corresponding LOS / NLOS indication information is NLOS.

[0185] Therefore, for the UE-RTT measurement quantity, the UE / TRP needs to report two LOS / NLOS indication information for the measurement quantity. For the reception time (i.e., T RX , the UE reports 1 LOS / NLOS indication information (i.e., LOS) corresponding to the reception time. For the transmission time (i.e., T TX , after receiving SRS-Pos1, the TRP needs to additionally report 1 LOS / NLOS indication information (i.e., NLOS) corresponding to the transmission time.

[0186] Similarly, for other UE-RTT measurement values (e.g., associated with TRP2), the UE / TRP needs to report 1 LOS / NLOS indication information corresponding to the reception time and 1 LOS / NLOS indication information corresponding to the transmission time, respectively.

[0187] Of course, the LOS / NLOS indication information here can also be a probability value of LOS or NLOS, rather than deterministic LOS or NLOS information.

[0188] With the method in this example 2, the UE / TRP can report, to the positioning server LMF, two LOS / NLOS indication information respectively corresponding to the reception time and the transmission time associated with the UE transmission / reception time difference positioning measurement quantity, so that the LMF can select to use a suitable positioning measurement quantity or make compensation according to the two LOS / NLOS indication information when calculating the terminal position, thereby more accurately estimating the position of the UE, avoiding the influence of the non-straight path on the accuracy of the terminal position calculation, and thereby improving the positioning accuracy of the LMF when estimating the position of the UE.

[0189] Example 3 (UE reports a single LOS / NLOS indication information):

[0190] In this example 3:

[0191] The UE or TRP obtains at least two LOS / NLOS indication information associated with a certain positioning measurement quantity, then the UE or TRP calculates a single LOS / NLOS indication information after processing the at least two LOS / NLOS indication information, and then reports it to the positioning server. Assist the positioning server to complete the UE positioning. The LOS / NLOS indication information contains at least one of the information that the wireless link corresponding to a certain measurement value in the measurement quantity is a LOS path, a NLOS path, a LOS path probability, and a NLOS path probability.

[0192] For the application scenario as shown in Figure 6 , there are the following candidate solutions:

[0193] a) Candidate solution 1: If the NLOS path probability (soft value, i.e. a value between the interval [0, 1]) is reported, at least two LOS / NLOS indication information closest to the NLOS path probability is reported, i.e. the value with the largest NLOS path probability is reported.

[0194] b) Candidate solution 2: If a hard value (i.e. 0 or 1) is reported, only when all the LOS / NLOS indication information indicates LOS, the value corresponding to LOS is reported, otherwise the value corresponding to NLOS is reported.

[0195] c) Candidate solution 3: Report a function value with multiple LOS / NLOS indication information as a variable, such as the average value, as the final reported LOS / NLOS indication information.

[0196] By using the method in this example, the UE can synthesize two LOS / NLOS indication information corresponding to a DL RSTD positioning measurement into a single LOS / NLOS indication information according to the reference time and the measurement time, and then report it to the positioning server LMF, so that the LMF can select to use a suitable positioning measurement or make compensation according to the single LOS / NLOS indication information when calculating the terminal position, thereby more accurately estimating the position of the UE, avoiding the influence of non-straight paths on the accuracy of terminal position calculation, thereby improving the positioning accuracy of the LMF when estimating the position of the UE, and thereby overcoming the problem of increased signaling overhead of reporting two LOS / NLOS indication information.

[0197] Example 4 (value range of LOS / NLOS indication information):

[0198] In this example 4:

[0199] The UE or the TRP reports at least two LOS / NLOS indication information associated with a certain positioning measurement to the positioning server to assist the positioning server to complete the positioning of the UE. The LOS / NLOS indication information contains at least one information of LOS path, NLOS path, LOS path probability, and NLOS path probability corresponding to a certain measurement value in the measurement.

[0200] Regarding the value range of the LOS / NLOS indication information:

[0201] a) The UE or the TRP sends a second indication information to the LMF, which is used to indicate whether the LOS / NLOS indication information is a hard value (hard value is 0 or 1, 0 and 1 represent LOS and NLOS respectively, or represent NLOS and LOS) or a soft value (soft value is a value between the interval [0, 1], which represents the LOS path probability or the NLOS path probability).

[0202] b) Whether the LOS / NLOS indication information is a hard value or a soft value, it includes at least one value of 0, 1, and NULL, wherein 0 and 1 represent LOS or NLOS, and NULL represents that the UE / TRP cannot provide the LOS / NLOS indication information, for example, insufficient confidence, and the UE / TRP cannot provide a sufficient and reliable LOS / NLOS indication information, so NULL is provided.

[0203] c) If the LOS / NLOS indication information is a soft value, the soft value is represented by N bits, indicating one of the 2 N possible values in the interval [0, 1]. N is a predetermined positive integer.

[0204] d) If the LOS / NLOS indication information is a soft value, all candidate values of the soft value are predefined, for example, 8 possible values are: {0, 0.1, 0.3, 0.5, 0.7, 0.9, 1, NULL}, as shown in Table 1:

[0205]

[0206] Table 1: Mapping relationship of 3 bits of LOS / NLOS indication information

[0207] By using the method in this example, the UE / TRP can provide the probability value of LOS / NLOS, so that the LMF can select to use appropriate positioning measurement or perform compensation when calculating the terminal position according to the probability information of LOS / NLOS, thereby more accurately estimating the position of the UE, avoiding the influence of non-straight path on the accuracy of terminal position calculation, and thereby improving the positioning accuracy of the LMF when estimating the position of the UE.

[0208] Example 5 (confidence of LOS / NLOS indication information):

[0209] In this example 5:

[0210] When reporting the LOS / NLOS indication information, the UE / TRP also reports the confidence of the measured LOS / NLOS indication information, which is used to represent the reliability of the LOS / NLOS indication information, for the LMF to refer to when using it.

[0211] The confidence is expressed in percentage, for example, the UE reports that a certain LOS / NLOS indication information is 1 with 95% confidence.

[0212] The confidence can also be represented by a preset M bits, indicating a certain value among 2^M possible values in the interval [0, 1]. Or, the confidence is represented by M bits, indicating a certain value among 2^M possible values in the interval [0%, 100%]. M is a preset positive integer.

[0213] All candidate values of the confidence can be predefined, for example, 8 possible values are: {10%, 20%, 30%, 50%, 70%, 80%, 90%, 100%}.

[0214] The reason for reporting the confidence level is that the LOS / NLOS indication information indicates whether the wireless propagation path of the positioning reference signal between the UE and the TRP is an LOS path or an NLOS path, or indicates the probability of the LOS path or the probability of the NLOS path. The LOS / NLOS information is calculated by the receiver through calculation of some wireless characteristics of the received signal, such as the Rice factor or the channel frequency response of the received signal. However, the LOS / NLOS indication information obtained through such calculation cannot be completely accurate and may have some errors, so the confidence level of the LOS / NLOS indication information is further introduced.

[0215] As shown in Figure 7 , the UE / TRP reports the specific value of the LOS / NLOS indication information and its confidence level to the LMF at the same time. If the LMF finds that the confidence level is very high, for example, 95%, the LMF will fully refer to the LOS / NLOS indication information when selecting the positioning measurement quantity or the measurement quantity compensation for positioning solution. On the contrary, if the LMF finds that the confidence level is very low, for example, 15%, the LMF can discard the LOS / NLOS indication information. In addition, if the LMF receives multiple LOS / NLOS indication information, the LMF will select the LOS / NLOS indication information with the highest confidence level for use.

[0216] By using the method in the example, the UE / TRP can provide the confidence level of the LOS / NLOS indication information, so that the LMF can select to use appropriate LOS / NLOS indication information according to the confidence level of the LOS / NLOS indication information when calculating the terminal position. Therefore, the position of the UE can be more accurately estimated, the influence of the non-straight path on the accuracy of the terminal position calculation is avoided, and the positioning accuracy of the LMF when estimating the position of the UE is improved.

[0217] Example 6 (signaling design of LOS / NLOS indication information):

[0218] As shown in Figure 8 , in this example 6:

[0219] For the DL-TDOA positioning method, the UE reports the DL RSTD measurement quantity in the LPP signaling and reports the LOS / NLOS indication information in the following specific signaling when reporting the DL RSTD measurement quantity in the LPP signaling:

[0220] The UE reports the LOS / NLOS indication information in the “Provide Location Information (NR-DL-TDOA-ProvideLocationInformation-r17)” information element (IE), and specifically,

[0221] The UE reports the measurement reference time or the LOS / NLOS indication information of the DL-PRS of the reference TRP in the "Signal Measurement Information (NR-DL-TDOA-SignalMeasurementInformation-r17)" information element (IE).

[0222] The UE reports the first DL-TDOA measurement or the LOS / NLOS indication information of the DL-PRS of the first TRP in the "Measurement Element Signaling (NR-DL-TDOA-MeasElement-r17)".

[0223] The UE reports the other three DL-TDOA measurements or the LOS / NLOS indication information of the DL-PRS of the TRPs in the "Additional Measurement Element Signaling (NR-DL-TDOA-AdditionalMeasurements-r17)".

[0224] With the method in this example, the UE can provide the LOS / NLOS indication information in the LPP signaling, so that the LMF can select to use the appropriate RSTD measurement or make compensation according to the LOS / NLOS indication information when calculating the terminal position, thereby more accurately estimating the position of the UE, avoiding the influence of non-straight paths on the accuracy of terminal position calculation, and thereby improving the positioning accuracy of the LMF when estimating the position of the UE.

[0225] Example 7 (LOS / NLOS indication information associated with a "UE-TRP pair"):

[0226] In this example 7:

[0227] The UE / TRP separately reports the LOS / NLOS indication information, which indicates the probability of the LOS path (or the probability of the NLOS path) between the UE and the TRP, is associated with a "UE-TRP pair" including a UE and a TRP, and is not associated with a specific positioning measurement, and is therefore applicable to all positioning measurements.

[0228] Specifically, in example 6, the LOS / NLOS indication information is associated with a specific positioning measurement, and the specific value of the indication information is reported together with the specific positioning measurement (i.e., DL-RSTD). The reporting of the indication information is dependent on the reporting of the positioning measurement. In this example 7, the LOS / NLOS indication information is not associated with a specific positioning measurement, but has wide applicability, and is associated with a "UE-TRP pair" including a UE and a TRP, and is therefore applicable to all positioning measurements.

[0229] In addition, the LOS / NLOS indication information can be reported jointly with the TEG or independently, that is, the indication information can be reported jointly with the transceiving timing error information or independently.

[0230] In existing protocols, for various positioning methods, when calculating positioning time measurement quantities such as DL-RSTD, UE transceiving time difference, or gNB transceiving time difference, the protocol assumes that time measurement is performed at the antenna connector position, but in fact, the time measurement position of the signal is at the baseband unit, so there will be a time measurement error, which exists for both signal transmission and signal reception and is referred to as transceiving timing error. The existence of the transceiving timing error causes the measurement results of all time-based positioning measurement quantities including DL-RSTD, UE transceiving time difference, and gNB transceiving time difference to be inaccurate, thereby affecting the final positioning accuracy.

[0231] The TEG refers to timing error group information and belongs to a kind of transceiving timing error information. The TEG is to place transceiving timing errors within a certain numerical interval range in multiple groups to represent the specific range of the transceiving timing error. Indicating the TEG is a scheme for indicating the transceiving timing error.

[0232] By using the method in the example, the LOS / NLOS indication information reported by the UE is associated with a specific "UE-TRP pair" and is not associated with a specific positioning measurement quantity, so it is applicable to all positioning measurement quantities, and therefore, the indication information does not need to be reported for each measurement quantity, and the reporting overhead is small.

[0233] As can be seen from the above examples, the embodiment of the present application proposes a method for transmitting direct path indication information. Compared with the prior art, the UE or the TRP can report at least two LOS / NLOS indication information associated with a certain positioning measurement quantity to the positioning server LMF to assist the positioning server in positioning the UE, so that the LMF can select a suitable positioning measurement quantity or perform compensation when calculating the position of the terminal according to the multiple LOS / NLOS indication information, thereby more accurately estimating the position of the UE and avoiding the influence of the non-direct path on the accuracy of the terminal position calculation, thereby improving the positioning accuracy of the LMF when estimating the position of the UE.

[0234] The above introduces various methods of the embodiment of the present application. The following will further provide a device for implementing the above method.

[0235] Please refer to Figure 9 The embodiment of the present application provides a first device, which can be at least one of a terminal, a base station, and a TRP, for example,Figure 10 The first device comprises:

[0236] The first sending unit 91 is configured to send, to the positioning server, direct path or non-direct path indication information corresponding to the positioning measurement quantity, wherein the direct path or non-direct path indication information is used to indicate a direct path or non-direct path attribute of a wireless link associated with the positioning measurement quantity, and the direct path or non-direct path attribute comprises at least one of the following: direct path; non-direct path; probability of direct path; probability of non-direct path.

[0237] Optionally, the first device further comprises:

[0238] The second sending unit is configured to send, to the positioning server, the positioning measurement quantity, so that the positioning server performs positioning according to the positioning measurement quantity and the direct path or non-direct path indication information corresponding to the positioning measurement quantity.

[0239] Optionally, the first sending unit is further configured to, for one positioning measurement quantity, send, to the positioning server, at least two direct path or non-direct path indication information corresponding to the positioning measurement quantity, wherein the positioning measurement quantity is associated with at least two measurement objects, and each direct path or non-direct path indication information is associated with a wireless link associated with one measurement object.

[0240] Optionally, the positioning measurement quantity is a downlink reference signal time difference (DL-RSTD) measurement quantity.

[0241] The at least two measurement objects comprise a reference measurement object and a relative measurement object, wherein the reference measurement object is a reference TRP, and the relative measurement object is a measurement TRP; or the reference measurement object is a reference time, and the relative measurement object is a measurement time or a downlink time difference of arrival (DL-TDOA).

[0242] Optionally, the first sending unit is further configured to, when sending at least one positioning measurement quantity, send, to the positioning server, direct path or non-direct path indication information of a wireless link associated with a same reference measurement object, and for each relative measurement object, send direct path or non-direct path indication information of a wireless link associated with the relative measurement object, respectively.

[0243] Optionally, the direct path or non-direct path indication information of the wireless link associated with the reference measurement object is carried in a first information element (IE), and the first information element (IE) comprises signal measurement information (NR-DL-TDOA-SignalMeasurementInformation-r17).

[0244] The first relative measurement object is associated with direct path or non-direct path indication information of a wireless link, carried in a measurement element signaling NR-DL-TDOA-MeasElement-r17; the remaining relative measurement objects are associated with direct path or non-direct path indication information of a wireless link, carried in an additional measurement element signaling NR-DL-TDOA-AdditionalMeasurements-r17.

[0245] Optionally, the positioning measurement quantity is a UE transceiving time difference measurement quantity; and the at least two measurement objects include a first downlink positioning reference signal (DL-PRS) and a first sounding reference signal for positioning (SRS-Pos).

[0246] Optionally, the first sending unit is further configured to send, by the terminal, direct path or non-direct path indication information of a wireless link associated with the first DL-PRS to a positioning server, and send, by the TRP, direct path or non-direct path indication information of a wireless link associated with the first SRS-Pos to the positioning server.

[0247] Optionally, the positioning measurement quantity is a TRP transceiving time difference measurement quantity.

[0248] The at least two measurement objects include a second DL-PRS and a second SRS-Pos.

[0249] Optionally, the first sending unit is further configured to send, by the terminal, direct path or non-direct path indication information of a wireless link associated with the second DL-PRS to a positioning server, and send, by the TRP, direct path or non-direct path indication information of a wireless link associated with the second SRS-Pos to the positioning server.

[0250] Optionally, the first sending unit is further configured to, when sending a plurality of the positioning measurement quantities, generate a first direct path or non-direct path indication information according to direct path or non-direct path indication information corresponding to the at least one positioning measurement quantity, and send the first direct path or non-direct path indication information to the positioning server.

[0251] Optionally, the first sending unit is further configured to generate a first direct path or non-direct path indication information according to any one of the following:

[0252] In a case where the direct path or non-direct path attribute is a direct path probability or a non-direct path probability, the first direct path or non-direct path indication information indicates a probability positively correlated with a minimum value of the direct path probability or a maximum value of the non-direct path probability.

[0253] In a case where the direct or indirect attribute is direct or indirect, the first direct or indirect indication information indicates direct only when all the direct or indirect indication information corresponding to the at least one positioning measurement indicates direct, otherwise, the first direct or indirect indication information indicates indirect;

[0254] In a case where the direct or indirect attribute is a probability of direct or a probability of indirect, the probability indicated by the first direct or indirect indication information is a preset function of the direct or indirect indication information corresponding to the at least one positioning measurement.

[0255] Optionally, the first device further comprises:

[0256] a third sending unit, configured to send first indication information to a positioning server, the first indication information being used to indicate that the direct or indirect indication information is a hard value or a soft value, the hard value including that the direct or indirect attribute is direct or indirect, and the soft value including that the direct or indirect attribute is a probability of direct or a probability of indirect.

[0257] Optionally, the value range of the direct or indirect indication information includes at least one of 0, 1 and null, wherein 0 represents one of direct and indirect, 1 represents the other one of direct or indirect, and null represents that the direct or indirect attribute is unknown.

[0258] Optionally, in a case where the direct or indirect indication information is a soft value, the direct or indirect indication information is indicated by N bits, N being a preset positive integer; each value of the N bits corresponds to one of 2 N values or intervals in the interval [0, 1], and in a case where the soft value is a probability of direct, the probability of direct is positively correlated with the soft value; in a case where the soft value is a probability of indirect, the probability of indirect is positively correlated with the soft value.

[0259] Optionally, each value or interval in the interval [0, 1] is predefined, and the correspondence between each value of the N bits and each value or interval in the interval [0, 1] is also predefined.

[0260] Optionally, the first device further comprises:

[0261] a fourth sending unit, configured to send second indication information to a positioning server, the second indication information being used to indicate the confidence of the direct or indirect indication information.

[0262] Optionally, the confidence is indicated by M bits, M is a preset positive integer; each value of the M bits corresponds to one of 2 M values in the interval [0%, 100%].

[0263] Optionally, each value in the interval [0%, 100%] is predefined, and the correspondence between each value of the M bits and each value in the interval [0%, 100%] is also predefined.

[0264] Optionally, the direct or indirect indication information is associated with all positioning measurement quantities of a UE-TRP pair, and the UE-TRP pair includes a terminal and a TRP.

[0265] It should be noted that the device in this embodiment is a device corresponding to the method shown in the above Figure 2 The implementation manners in the above embodiments are all applicable to the embodiments of the device, and the same technical effects can also be achieved. The above device provided by the embodiments of the present application can realize all the method steps achieved by the method embodiments, and can achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0266] Please refer to Figure 10 , another structure schematic diagram of the first device provided by the embodiments of the present application, the first device includes: a processor 1001, a transceiver 1002, a memory 1003, a user interface 1004 and a bus interface.

[0267] In the embodiments of the present application, the first device further includes: a program stored on the memory 1003 and executable on the processor 1001.

[0268] The transceiver 1002 is used for transceiving data under the control of the processor;

[0269] The processor 1001 is used for reading the computer program in the memory and performing the following operations:

[0270] The transceiver 1002 is used for transceiving data under the control of the processor;

[0271] Optionally, the processor is further used for reading the computer program in the memory and performing the following operations:

[0272] sending the positioning measurement quantity to the positioning server, so that the positioning server performs positioning according to the positioning measurement quantity and the direct path or non-direct path indication information corresponding to the positioning measurement quantity.

[0273] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0274] For one positioning measurement quantity, the first device sends at least two direct path or non-direct path indication information corresponding to the positioning measurement quantity to the positioning server, wherein the positioning measurement quantity is associated with at least two measurement objects, and each direct path or non-direct path indication information is associated with a wireless link associated with a measurement object.

[0275] Optionally, the positioning measurement quantity is a downlink reference signal time difference (DL-RSTD) measurement quantity.

[0276] The at least two measurement objects include a reference measurement object and a relative measurement object; wherein the reference measurement object is a reference TRP, and the relative measurement object is a measurement TRP; or the reference measurement object is a reference time, and the relative measurement object is a measurement time or a downlink time difference of arrival (DL-TDOA).

[0277] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0278] When sending at least one positioning measurement quantity, the direct path or non-direct path indication information of the wireless link associated with the same reference measurement object is sent to the positioning server, and for each relative measurement object, the direct path or non-direct path indication information of the wireless link associated with the relative measurement object is sent respectively.

[0279] Optionally, the direct path or non-direct path indication information of the wireless link associated with the reference measurement object is carried in a first information element (IE), and the first information element (IE) includes signal measurement information (NR-DL-TDOA-SignalMeasurementInformation-r17).

[0280] The direct path or non-direct path indication information of the wireless link associated with the first relative measurement object is carried in a measurement element signaling (NR-DL-TDOA-MeasElement-r17), and the direct path or non-direct path indication information of the wireless link associated with the remaining relative measurement objects is carried in additional measurement element signaling (NR-DL-TDOA-AdditionalMeasurements-r17).

[0281] Optionally, the positioning measurement quantity is a UE transceiver time difference measurement quantity; and the at least two measurement objects comprise a first downlink positioning reference signal (DL-PRS) and a first sounding reference signal for positioning (SRS-Pos).

[0282] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0283] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0284] Optionally, the positioning measurement quantity is a TRP transceiver time difference measurement quantity.

[0285] The at least two measurement objects comprise a second DL-PRS and a second SRS-Pos.

[0286] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0287] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0288] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0289] When the plurality of positioning measurement quantities are transmitted, a first direct or indirect indication information is generated according to the direct or indirect indication information corresponding to the at least one positioning measurement quantity and is transmitted to the positioning server.

[0290] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0291] According to any one of the following, a first direct or indirect indication information is generated:

[0292] In the case where the direct or indirect attribute is a direct probability or an indirect probability, the first direct or indirect indication information indicates a probability that is positively correlated with the minimum value of the direct probability or the maximum value of the indirect probability.

[0293] In a case where the direct or indirect attribute is direct or indirect, the first direct or indirect indication information indicates direct only when all the direct or indirect indication information corresponding to the at least one positioning measurement indicates direct, otherwise, the first direct or indirect indication information indicates indirect;

[0294] In a case where the direct or indirect attribute is a probability of direct or a probability of indirect, the probability indicated by the first direct or indirect indication information is a preset function of the direct or indirect indication information corresponding to the at least one positioning measurement.

[0295] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0296] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0297] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0298] Optionally, the value range of the direct or indirect indication information includes at least one of 0, 1 and null, wherein 0 represents one of direct and indirect, 1 represents the other one of direct or indirect, and null represents that the direct or indirect attribute is unknown.

[0299] Optionally, in a case where the direct or indirect indication information is a soft value, the direct or indirect indication information is indicated by N bits, N is a preset positive integer; each value of the N bits corresponds to one of 2 N values or intervals in the interval [0, 1], and in a case where the soft value is a probability of direct, the probability of direct is positively correlated with the soft value; in a case where the soft value is a probability of indirect, the probability of indirect is positively correlated with the soft value.

[0300] Optionally, each value or interval in the interval [0, 1] is predefined, and the correspondence between each value of the N bits and each value or interval in the interval [0, 1] is also predefined.

[0301] Optionally, the first device further comprises:

[0302] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0303] Send a second indication message to the positioning server, the second indication message being used to indicate the confidence level of the direct or indirect trajectory indication message.

[0304] Optionally, the confidence level is indicated using M bits, where M is a preset positive integer; each value of the M bits corresponds to 2 in the interval [0%, 100%]. M One of the possible values.

[0305] Optionally, each value in the [0%, 100%] interval is predefined, and the correspondence between each value of the M bits and each value in the [0%, 100%] interval is also predefined.

[0306] Optionally, the direct or indirect trajectory indication information is associated with all positioning measurements of a UE-TRP pair, which includes a terminal and a TRP.

[0307] Understandably, in this embodiment of the invention, the computer program executed by the processor 1001 can achieve the above-mentioned functions. Figure 2 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0308] exist Figure 10 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1001 and memory represented by memory 1003 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 and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1002 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, the user interface 1004 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0309] The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 can store the data used by the processor 1001 when performing operations.

[0310] It should be noted that the device in this embodiment is the same as the one described above. Figure 2The method shown corresponds to the device, and the implementation manners in the above-mentioned embodiments are applicable to the embodiments of the device, and the same technical effects can also be achieved. In the device, the transceiver 1002 and the memory 1003, and the transceiver 1002 and the processor 1001 can be connected through a bus interface, the function of the processor 1001 can also be implemented by the transceiver 1002, and the function of the transceiver 1002 can also be implemented by the processor 1001. It should be noted that the above-mentioned device provided by the embodiments of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. Here, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0311] In some embodiments of the present application, a computer readable storage medium is also provided, which stores a program, and the program is executed by a processor to implement the following steps:

[0312] The positioning server sends the direct path or non-direct path indication information corresponding to the positioning measurement quantity to the first device, wherein the first device comprises at least one of a terminal, a base station and a TRP, and the direct path or non-direct path indication information is used to indicate the direct path or non-direct path attribute of the wireless link associated with the positioning measurement quantity, and the direct path or non-direct path attribute comprises at least one of the following: direct path; non-direct path; probability of direct path; probability of non-direct path.

[0313] The program is executed by the processor to implement all the implementation manners in the above-mentioned sending method and receiving method of the direct path or non-direct path indication information applied to the first device, and the same technical effects can be achieved. To avoid repetition, this will not be described here.

[0314] The embodiments of the present application provide Figure 11 The positioning server shown comprises:

[0315] The first receiving unit 111 is used for receiving the direct path or non-direct path indication information corresponding to the positioning measurement quantity sent by the first device, wherein the first device comprises at least one of a terminal, a base station and a TRP, and the direct path or non-direct path indication information is used to indicate the direct path or non-direct path attribute of the wireless link associated with the positioning measurement quantity, and the direct path or non-direct path attribute comprises at least one of the following: direct path; non-direct path; probability of direct path; probability of non-direct path.

[0316] Optionally, the first receiving unit is also used for receiving at least two direct path or non-direct path indication information corresponding to one positioning measurement quantity sent by the first device, wherein the positioning measurement quantity is associated with at least two measurement objects, and each direct path or non-direct path indication information is associated with the wireless link associated with one measurement object.

[0317] Optionally, the positioning measurement quantity is a DL-RSTD measurement quantity.

[0318] The at least two measurement objects comprise: a reference measurement object and a relative measurement object; wherein the reference measurement object is a reference TRP, and the relative measurement object is a measurement TRP; or the reference measurement object is a reference time, and the relative measurement object is a measurement time or a downlink time difference of arrival (DL-TDOA).

[0319] Optionally, the first receiving unit is further configured to, when receiving the at least one positioning measurement quantity, receive, from the first device, direct path or non-direct path indication information of a wireless link associated with a same reference measurement object, and receive, from the first device, direct path or non-direct path indication information of a wireless link associated with each relative measurement object respectively transmitted by the first device.

[0320] Optionally, the positioning measurement quantity is a UE transceiver time difference measurement quantity.

[0321] The at least two measurement objects comprise: a first DL-PRS and a first SRS-Pos.

[0322] Optionally, the first receiving unit is further configured to receive, from the terminal, direct path or non-direct path indication information of a wireless link associated with the first DL-PRS, and receive, from the TRP, direct path or non-direct path indication information of a wireless link associated with the first SRS-Pos.

[0323] Optionally, the positioning measurement quantity is a TRP transceiver time difference measurement quantity.

[0324] The at least two measurement objects comprise: a second DL-PRS and a second SRS-Pos.

[0325] Optionally, the first receiving unit is further configured to receive, from the terminal, direct path or non-direct path indication information of a wireless link associated with the second DL-PRS, and receive, from the TRP, direct path or non-direct path indication information of a wireless link associated with the second SRS-Pos.

[0326] Optionally, the first receiving unit is further configured to, when receiving a plurality of positioning measurement quantities, receive, from the first device, first direct path or non-direct path indication information generated according to direct path or non-direct path indication information corresponding to the plurality of positioning measurement quantities.

[0327] Optionally, the positioning server further comprises:

[0328] The second receiving unit is configured to receive first indication information sent by the first device, the first indication information being used to indicate whether the direct path or non-direct path indication information is a hard value or a soft value, the hard value including that the direct path or non-direct path attribute is a direct path or a non-direct path, and the soft value including a probability that the direct path or non-direct path attribute is a direct path or a non-direct path.

[0329] Optionally, the positioning server further comprises:

[0330] The third receiving unit is configured to receive second indication information sent by the first device, the second indication information being used to indicate a confidence degree of the direct path or non-direct path indication information.

[0331] Optionally, the direct path or non-direct path indication information is associated with all positioning measurement quantities of one UE-TRP pair, and the UE-TRP pair includes one terminal and one TRP.

[0332] It should be noted that the apparatus in this embodiment is a device corresponding to the method shown in the above Figure 3 The implementation manners in the above embodiments are all applicable to the embodiments of the device, and can achieve the same technical effects. It should be noted that the above device provided in the embodiments of the present application can implement all the method steps achieved by the method embodiments and can achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0333] Please refer to Figure 12 The present embodiment provides a structure diagram of a positioning server, which comprises a processor 1201, a transceiver 1202, a memory 1203 and a bus interface, wherein:

[0334] In the present embodiment, the positioning server further comprises a program stored in the memory 1203 and executable on the processor 1201,

[0335] The transceiver 1002 is configured to transceive data under the control of the processor.

[0336] The processor 1001 is configured to read the computer program in the memory and perform the following operations:

[0337] receive direct path or non-direct path indication information corresponding to positioning measurement quantities sent by a first device, wherein the first device includes at least one of a terminal, a base station and a TRP, the direct path or non-direct path indication information is used to indicate a direct path or non-direct path attribute of a wireless link associated with the positioning measurement quantities, and the direct path or non-direct path attribute includes at least one of the following: a direct path; a non-direct path; a probability of a direct path; and a probability of a non-direct path.

[0338] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0339] receiving, by the first device, at least two direct or indirect indication information corresponding to the at least one positioning measurement quantity, wherein the at least one positioning measurement quantity is associated with at least two measurement objects, and each direct or indirect indication information is associated with a wireless link associated with one measurement object.

[0340] Optionally, the at least one positioning measurement quantity is a DL-RSTD measurement quantity.

[0341] The at least two measurement objects include a reference measurement object and a relative measurement object, wherein the reference measurement object is a reference TRP, and the relative measurement object is a measurement TRP, or the reference measurement object is a reference time, and the relative measurement object is a measurement time or a downlink time difference of arrival DL-TDOA.

[0342] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0343] In the receiving of the at least one positioning measurement quantity, the direct or indirect indication information of the wireless link associated with the same reference measurement object is received, and the direct or indirect indication information of the wireless link associated with each relative measurement object is received.

[0344] Optionally, the at least one positioning measurement quantity is a UE transmission-reception time difference measurement quantity.

[0345] The at least two measurement objects include a first DL-PRS and a first SRS-Pos.

[0346] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0347] The direct or indirect indication information of the wireless link associated with the first DL-PRS is received, and the direct or indirect indication information of the wireless link associated with the first SRS-Pos is received.

[0348] Optionally, the at least one positioning measurement quantity is a TRP transmission-reception time difference measurement quantity.

[0349] The at least two measurement objects include a second DL-PRS and a second SRS-Pos.

[0350] Optionally, the processor is further configured to read a computer program in the memory and perform the following operations:

[0351] receive the direct or indirect indication information of the wireless link associated with the second DL-PRS transmitted by the terminal, and receive the direct or indirect indication information of the wireless link associated with the second SRS-Pos transmitted by the TRP.

[0352] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0353] In the receiving of the plurality of positioning measurement quantities, first direct or indirect indication information transmitted by the first device is received, the first direct or indirect indication information being generated according to the direct or indirect indication information corresponding to the plurality of positioning measurement quantities.

[0354] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0355] receive first indication information transmitted by the first device, the first indication information being used to indicate that the direct or indirect indication information is a hard value or a soft value, the hard value including that the direct or indirect attribute is direct or indirect, and the soft value including a probability that the direct or indirect attribute is direct or indirect.

[0356] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0357] receive second indication information transmitted by the first device, the second indication information being used to indicate a confidence degree of the direct or indirect indication information.

[0358] Optionally, the direct or indirect indication information is associated with all positioning measurement quantities of one UE-TRP pair, the UE-TRP pair including one terminal and one TRP.

[0359] It can be understood that, when the computer program is executed by the processor 1201, the computer program can implement the various processes of the method embodiments shown above, and can achieve the same technical effects. To avoid repetition, details are not described here. Figure 3 The same technical effects can be achieved.

[0360] In the receiving of the plurality of positioning measurement quantities, first direct or indirect indication information transmitted by the first device is received, the first direct or indirect indication information being generated according to the direct or indirect indication information corresponding to the plurality of positioning measurement quantities. Figure 12In some embodiments, the bus architecture can include any number of interconnecting buses and bridges, and the various circuitry representative of the processor 1201 and the memory 1203 that can be linked through a variety of means, as is well known in the art. The bus architecture can also include various other circuitry that can be designed to communicate over the buses, which are well known such that a more detailed description will not be given here. The bus interface provides an interface. The transceiver 1202 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

[0361] The processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 can store data used by the processor 1201 in performing operations.

[0362] It should be noted that the terminal in this embodiment is a device corresponding to the method shown in the above Figure 3 The implementation manner in each of the above embodiments is applicable to the terminal embodiment, and the same technical effects can also be achieved. In the device, the transceiver 1202 and the memory 1203, and the transceiver 1202 and the processor 1201 can be connected through the bus interface, the function of the processor 1201 can also be realized by the transceiver 1202, and the function of the transceiver 1202 can also be realized by the processor 1201. It should be noted that the above device provided by the embodiments of the present application can realize all the method steps realized by the method embodiments, and can achieve the same technical effects. Here, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0363] In some embodiments of the present application, a computer readable storage medium is also provided, which stores a program, and the program is executed by a processor to implement the following steps:

[0364] Receiving direct or indirect diameter indication information corresponding to the positioning measurement quantity sent by the first device, wherein the first device includes at least one of a terminal, a base station and a TRP, the direct or indirect diameter indication information is used to indicate the direct or indirect diameter attribute of the wireless link associated with the positioning measurement quantity, and the direct or indirect diameter attribute includes at least one of the following: direct diameter; indirect diameter; probability of direct diameter; probability of indirect diameter.

[0365] The program executed by the processor can implement all the implementation manners in the above sending method and receiving method of the direct or indirect diameter indication information applied to the positioning server, and can achieve the same technical effects. To avoid repetition, this will not be described here.

[0366] Those skilled in the art can clearly understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0367] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0368] In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented by other means. For example, the apparatus embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, another division manner can be used, for example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0369] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, some or all of the units can be selected to achieve the purpose of the embodiment of the present application.

[0370] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit.

[0371] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the parts of the present application that essentially contribute to the prior art or the parts of the technical solutions can be embodied in the form of software products. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various media that can store program codes.

[0372] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for transmitting direct or indirect path LOS / NLOS indication information, characterized in that, include: The first device sends a direct or indirect path indication information corresponding to the positioning measurement to the positioning server. The first device includes at least one of a terminal, a base station, and a transceiver point (TRP). The direct or indirect path indication information is used to indicate the direct or indirect path attribute of the wireless link associated with the positioning measurement. The direct or indirect path attribute includes at least one of the following: direct path; indirect path; probability of direct path; probability of indirect path. The first device sends the direct or indirect trajectory indication information corresponding to the positioning measurement to the positioning server, including: For a given positioning measurement, the first device sends at least two direct or indirect path indication messages corresponding to the positioning measurement to the positioning server, wherein the positioning measurement is associated with at least two measurement objects, and each direct or indirect path indication message is associated with a wireless link associated with a measurement object.

2. The method as described in claim 1, characterized in that, Also includes: The first device sends the positioning measurement to the positioning server so that the positioning server can perform positioning based on the positioning measurement and the corresponding direct or indirect trajectory indication information.

3. The method as described in claim 1, characterized in that, The positioning measurement is the downlink reference signal time difference (DL-RSTD) measurement. The at least two measurement objects include: a reference measurement object and a relative measurement object; wherein the reference measurement object is a reference TRP and the relative measurement object is a measurement TRP; or, the reference measurement object is a reference time and the relative measurement object is a measurement time or downlink time difference of arrival (DL-TDOA).

4. The method as described in claim 3, characterized in that, When sending at least one of the positioning measurements, the system sends a direct or indirect path indication information of the wireless link associated with the same reference measurement object to the positioning server, and sends a direct or indirect path indication information of the wireless link associated with each relative measurement object.

5. The method as described in claim 3, characterized in that, The direct or indirect path indication information of the wireless link associated with the reference measurement object is carried in the first information element IE, which includes signal measurement information NR-DL-TDOA-SignalMeasurementInformation-r17. The direct or indirect path indication information of the wireless link associated with the first relative measurement object is carried in the measurement element signaling NR-DL-TDOA-MeasElement-r17; the direct or indirect path indication information of the remaining relative measurement objects associated with the wireless links is carried in the additional measurement element signaling NR-DL-TDOA-AdditionalMeasurements-r17.

6. The method as described in claim 1, characterized in that, The positioning measurement is the UE transmit / receive time difference measurement. The at least two measurement objects include: a first downlink positioning reference signal DL-PRS and a first detection reference signal SRS-Pos for positioning.

7. The method as described in claim 6, characterized in that, The first device sends at least two direct or indirect trajectory indications corresponding to the positioning measurement to the positioning server, specifically: The terminal sends the direct or indirect path indication information of the wireless link associated with the first DL-PRS to the positioning server, and the TRP sends the direct or indirect path indication information of the wireless link associated with the first SRS-Pos to the positioning server.

8. The method as described in claim 1, characterized in that, The positioning measurement is a TRP (Time Difference of Receive / Transmit) measurement. The at least two measurement objects include: a second downlink positioning reference signal DL-PRS and a second detection reference signal SRS-Pos used for positioning.

9. The method as described in claim 8, characterized in that, The first device sends at least two direct or indirect trajectory indications corresponding to the positioning measurement to the positioning server, specifically: The terminal sends the direct or indirect path indication information of the wireless link associated with the second DL-PRS to the positioning server, and the TRP sends the direct or indirect path indication information of the wireless link associated with the second SRS-Pos to the positioning server.

10. The method as described in claim 1, characterized in that, The first device sends the direct or indirect trajectory indication information corresponding to the positioning measurement to the positioning server, including: When sending at least one of the positioning measurements, a first direct or indirect trajectory indication is generated based on the direct or indirect trajectory indication information corresponding to the at least one positioning measurement and sent to the positioning server.

11. The method as described in claim 10, characterized in that, Based on the direct or indirect trajectory indication information corresponding to the at least one positioning measurement, a first direct or indirect trajectory indication information is generated, including any one of the following: When the probability of the direct or indirect trajectory attribute is a direct trajectory or an indirect trajectory, the probability indicated by the first direct or indirect trajectory indication information is positively correlated with the minimum of the probabilities of the direct trajectory, or positively correlated with the maximum of the probabilities of the indirect trajectory. When the direct or indirect trajectory attribute is direct or indirect trajectory, the first direct or indirect trajectory indication information indicates direct trajectory only when the direct or indirect trajectory indication information corresponding to the at least one positioning measurement indicates direct trajectory; otherwise, the first direct or indirect trajectory indication information indicates indirect trajectory. In the case where the probability of the direct or indirect trajectory attribute is a direct trajectory or an indirect trajectory, the probability indicated by the first direct or indirect trajectory indication information is a preset function with the direct or indirect trajectory indication information corresponding to the at least one positioning measurement quantity as the variable.

12. The method as described in claim 1, characterized in that, Also includes: The first device sends a first indication information to the positioning server. The first indication information is used to indicate whether the direct or indirect trajectory indication information is a hard value or a soft value. The hard value includes the direct or indirect trajectory attribute being a direct or indirect trajectory, and the soft value includes the probability that the direct or indirect trajectory attribute is a direct or indirect trajectory.

13. The method as described in claim 12, characterized in that, The value range of the direct or indirect trajectory indication information includes at least one of 0, 1, and null; wherein 0 represents direct trajectory and 1 represents indirect trajectory, or 0 represents indirect trajectory and 1 represents direct trajectory; null indicates that the direct or indirect trajectory attribute is unknown.

14. The method as described in claim 12, characterized in that, When the direct or indirect trajectory indication information is a soft value, the direct or indirect trajectory indication information is indicated using N bits, where N is a preset positive integer; each value of the N bits corresponds to 2 in the interval [0, 1]. N The soft value is one of a certain value or range, and when the soft value is the probability of a direct path, the probability of the direct path is positively correlated with the soft value; when the soft value is the probability of a non-direct path, the probability of the non-direct path is positively correlated with the soft value.

15. The method according to any one of claims 1 to 14, characterized in that, Also includes: The first device sends a second indication information to the positioning server, the second indication information being used to indicate the confidence level of the direct or indirect trajectory indication information.

16. The method as described in claim 15, characterized in that, The confidence level is indicated by M bits, where M is a preset positive integer; each value of the M bits corresponds to 2 in the interval [0%, 100%]. M One of the possible values.

17. The method as described in claim 1, characterized in that, The direct or indirect path indication information is associated with all positioning measurements of a UE-TRP pair, which includes a terminal and a TRP.

18. A method for receiving direct or indirect trajectory indication information, characterized in that, include: The positioning server receives a direct or indirect path indication information corresponding to a positioning measurement sent by a first device, wherein the first device includes at least one of a terminal, a base station, and a TRP, and the direct or indirect path indication information is used to indicate the direct or indirect path attribute of the wireless link associated with the positioning measurement, and the direct or indirect path attribute includes at least one of the following: direct path; indirect path; probability of direct path; probability of indirect path; The step of receiving the positioning measurement data sent by the first device, corresponding to the direct or indirect trajectory indication information, includes: The system receives at least two direct or indirect path indication messages corresponding to a positioning measurement sent by a first device for a positioning measurement, wherein the positioning measurement is associated with at least two measurement objects, and each direct or indirect path indication message is associated with a wireless link associated with a measurement object.

19. The method as described in claim 18, characterized in that, Also includes: The positioning service receives the positioning measurement data sent by the first device to the receiver; The positioning server performs positioning based on the positioning measurement and the corresponding direct or indirect trajectory indication information.

20. The method as described in claim 18, characterized in that, The positioning measurement is a DL-RSTD measurement. The at least two measurement objects include: a reference measurement object and a relative measurement object; wherein the reference measurement object is a reference TRP and the relative measurement object is a measurement TRP; or, the reference measurement object is a reference time and the relative measurement object is a measurement time or downlink time difference of arrival (DL-TDOA).

21. The method as described in claim 20, characterized in that, The step of receiving the positioning measurement data sent by the first device, corresponding to the direct or indirect trajectory indication information, further includes: When receiving at least one of the positioning measurements, the system receives direct or indirect path indication information of the wireless link associated with the same reference measurement object sent by the first device, and receives direct or indirect path indication information of the wireless link associated with each relative measurement object sent by the first device for each relative measurement object.

22. The method as described in claim 18, characterized in that, The positioning measurement is the UE transmit / receive time difference measurement. The at least two measurement objects include: a first DL-PRS and a first SRS-Pos.

23. The method as described in claim 22, characterized in that, The receiving of at least two direct or indirect trajectory indication messages corresponding to a positioning measurement sent by the first device for a positioning measurement specifically includes: The receiving terminal sends direct or indirect path indication information of the wireless link associated with the first DL-PRS, and receives direct or indirect path indication information of the wireless link associated with the first SRS-Pos sent by the TRP.

24. The method as described in claim 18, characterized in that, The positioning measurement is a TRP (Time Difference of Receive / Transmit) measurement. The at least two measurement objects include: a second DL-PRS and a second SRS-Pos.

25. The method as described in claim 24, characterized in that, The receiving of at least two direct or indirect trajectory indication messages corresponding to a positioning measurement sent by the first device for a positioning measurement specifically includes: The terminal receives the direct or indirect path indication information of the wireless link associated with the second DL-PRS, and the TRP receives the direct or indirect path indication information of the wireless link associated with the second SRS-Pos.

26. The method as described in claim 18, characterized in that, The receipt of the positioning measurement data sent by the first device, corresponding to the direct or indirect trajectory indication information, includes: When receiving at least one of the positioning measurements, the system receives a first direct or indirect trajectory indication information sent by the first device, wherein the first direct or indirect trajectory indication information is generated based on the direct or indirect trajectory indication information corresponding to at least one of the positioning measurements.

27. The method as described in claim 18, characterized in that, Also includes: The system receives first indication information sent by the first device. The first indication information is used to indicate whether the direct or indirect trajectory indication information is a hard value or a soft value. The hard value includes the direct or indirect trajectory attribute being a direct or indirect trajectory, and the soft value includes the probability that the direct or indirect trajectory attribute is a direct or indirect trajectory.

28. The method according to any one of claims 18 to 27, characterized in that, Also includes: The system receives a second indication information sent by the first device, the second indication information being used to indicate the confidence level of the direct or indirect trajectory indication information.

29. The method as described in claim 18, characterized in that, The direct or indirect path indication information is associated with all positioning measurements of a UE-TRP pair, which includes a terminal and a TRP.

30. A first device, characterized in that, The first device includes at least one of a terminal, a base station, and a transceiver point (TRP). The first device includes a memory, a transceiver, and a processor. 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 configured to read the computer program in the memory and perform the following operations: Sending direct or indirect path indication information corresponding to the positioning measurement to the positioning server, wherein the direct or indirect path indication information is used to indicate the direct or indirect path attribute of the wireless link associated with the positioning measurement, and the direct or indirect path attribute includes at least one of the following: direct path; indirect path; probability of direct path; probability of indirect path. The processor is further configured to, for a positioning measurement, send at least two direct or indirect path indication messages corresponding to the positioning measurement to a positioning server, wherein the positioning measurement is associated with at least two measurement objects, and each direct or indirect path indication message is associated with a wireless link associated with a measurement object.

31. A first device, characterized in that, The first device includes at least one of a terminal, a base station, and a transceiver point (TRP), and the first device includes: The first transmitting unit is configured to send a direct or indirect path indication information corresponding to a positioning measurement to a positioning server, wherein the direct or indirect path indication information is used to indicate the direct or indirect path attribute of the wireless link associated with the positioning measurement, and the direct or indirect path attribute includes at least one of the following: direct path; indirect path; probability of direct path; probability of indirect path. The first transmitting unit is further configured to, for a positioning measurement, send at least two direct or indirect path indication messages corresponding to the positioning measurement to the positioning server, wherein the positioning measurement is associated with at least two measurement objects, and each direct or indirect path indication message is associated with a wireless link associated with a measurement object.

32. A positioning server, characterized in that, Includes memory, transceiver, and processor, among which, 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 configured to read the computer program in the memory and perform the following operations: The system receives a direct or indirect path indication information corresponding to a positioning measurement sent by a first device, wherein the first device includes at least one of a terminal, a base station, and a TRP, and the direct or indirect path indication information is used to indicate the direct or indirect path attribute of the wireless link associated with the positioning measurement, and the direct or indirect path attribute includes at least one of the following: direct path; indirect path; probability of direct path; probability of indirect path; The processor is further configured to receive at least two direct or indirect path indication messages corresponding to a positioning measurement sent by the first device for a positioning measurement, wherein the positioning measurement is associated with at least two measurement objects, and each direct or indirect path indication message is associated with a wireless link associated with a measurement object.

33. A positioning server, characterized in that, include: A first receiving unit is configured to receive direct or indirect path indication information corresponding to a positioning measurement sent by a first device, wherein the first device includes at least one of a terminal, a base station, and a TRP, and the direct or indirect path indication information is used to indicate the direct or indirect path attribute of the wireless link associated with the positioning measurement, wherein the direct or indirect path attribute includes at least one of the following: direct path; indirect path; probability of direct path; probability of indirect path; The first receiving unit is further configured to receive at least two direct or indirect path indication messages corresponding to a positioning measurement sent by the first device for a positioning measurement, wherein the positioning measurement is associated with at least two measurement objects, and each direct or indirect path indication message is associated with a wireless link associated with a measurement object.

34. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program for causing the processor to perform the method according to any one of claims 1 to 29.

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