WO2023011321A1

WO2023011321A1 - Positioning method and apparatus, device, and storage medium

Info

Publication number: WO2023011321A1
Application number: PCT/CN2022/108721
Authority: WO
Inventors: 李辉; 任斌; 任晓涛; 达人
Original assignee: 大唐移动通信设备有限公司
Priority date: 2021-08-06
Filing date: 2022-07-28
Publication date: 2023-02-09
Also published as: CN115942368A

Abstract

An embodiment of the present application provides a positioning method and apparatus, a device, and a storage medium, which are used for improving positioning accuracy while ensuring measurement complexity. The method comprises: configuring a first resource set and a second resource set for a terminal; receiving a first measurement result reported by the terminal; determining a first transmission direction of a downlink positioning reference signal resource in the second resource set according to the first measurement result, or sending the first measurement result to the base station, the first measurement result being used by the base station to determine the first transmission direction; and receiving a second measurement result reported by the terminal, and positioning the terminal according to the second measurement result.

Description

A positioning method, device, equipment and storage medium

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202110904393.9 and the application title "a positioning method, device, equipment and storage medium" submitted to the China Patent Office on August 6, 2021, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the technical field of wireless communication, and in particular to a positioning method, device, equipment and storage medium.

Background technique

3GPP provides a positioning method based on New Radio (NR) signals in Rel-16. NR positioning technology includes downlink positioning technology, uplink positioning technology and uplink and downlink mixed positioning technology. Among them, the downlink positioning technology uses the UE (terminal) to measure the downlink positioning reference signal (Downlink-Positioning Reference Signal, DL PRS) to obtain the positioning measurement value and report it to the positioning server. The downlink positioning technology includes NR downlink time difference of arrival (Downlink-Time Difference Of Arrival, DL-TDOA) and NR Downlink-Angle of Departure (DL-AoD); uplink positioning technology uses gNB (base station) to measure the uplink sounding reference signal (Uplink-Sounding Reference Signal, UL SRS) to obtain the positioning measurement value and report it Positioning server, uplink positioning technology includes NR uplink time difference of arrival (Uplink-Time Difference Of Arrival, UL-TDOA) and NR uplink angle of arrival (Uplink-Angle of Arrival, UL-AoA); uplink and downlink hybrid positioning technology includes NR multi-cell round-trip Time (Multiplecell-Round Trip Time, Multi-RTT), NR Multi-RTT reports UE sending and receiving time difference (UE Rx-Tx time difference) for UE, and gNB reports gNB sending and receiving time difference (gNB Rx-Tx time difference).

In the above positioning technology, when the terminal (or base station) performs measurement, the number of received signal resources is small or the beam sent by the base station (or terminal) is wide, the positioning server performs positioning based on the measurement results reported by the terminal (or base station) , the obtained location information is not accurate enough; and when the terminal (or base station) performs measurement, the number of received signal resources is large or the beam of the base station (or terminal) is thin, the measurement complexity of the terminal (or base station) is high , and at the same time, the reference signal resource overhead of the base station (or terminal) is also relatively high.

Contents of the invention

Embodiments of the present application provide a positioning method, device, device, and storage medium, which are used to improve positioning accuracy while ensuring measurement complexity.

In the first aspect, a positioning method is provided, which is applied to a positioning server, and the method includes:

Configuring a first resource set and a second resource set for the terminal; the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

receiving a first measurement result reported by the terminal; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal resources in the first resource set transmitted by the base station;

According to the first measurement result, determine the first transmission direction of the downlink positioning reference signal resource in the second resource set; or send the first measurement result to the base station, the first measurement result is used for the The base station determines the first transmission direction;

receiving a second measurement result reported by the terminal, and locating the position of the terminal according to the second measurement result; wherein, the second measurement result is that the terminal receives the base station according to the first transmission direction The result obtained by performing measurement on the downlink positioning reference signal resources in the second resource set for transmission.

Optionally, the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement result includes the second The downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the resource set, the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.

Optionally, the determining the first transmission direction of the downlink positioning reference signal resource in the second resource set according to the first measurement result includes:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource determined according to reference signal power in the first measurement result;

determining the transmission direction of the first downlink positioning reference signal resource as the first transmission direction of the downlink positioning reference signal resource in the second resource set.

Optionally, after determining the first transmission direction of the downlink positioning reference signal resource in the second resource set according to the first measurement result, the method further includes:

sending a first message to the base station, or sending the first message to the base station and the terminal, where the first message is used to instruct the base station to transmit the downlink in the second resource set based on the first transmission direction The positioning reference signal resources, and the first message is used to notify the terminal that the base station transmits the downlink positioning reference signal resources in the second resource set in a first transmission direction.

Optionally, the first message includes:

the first direction of transmission; or,

The second quasi-co-location QCL relationship; wherein, the second QCL relationship is the configuration of the positioning server for the downlink positioning reference signal resource in the second resource set according to the first transmission direction and the first downlink the QCL relationship of the positioning reference signal resource; or,

A first indication message, where the first indication message is used to instruct the base station to adjust the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction; or,

The index of the second downlink positioning reference signal resource; wherein, the second downlink positioning reference signal resource is determined by the positioning server to transmit from the second resource set according to the first measurement result and the first QCL relationship to the The downlink positioning reference signal resources of the terminal, the first QCL relationship is the QCL relationship between the downlink positioning reference signal resources in the first resource set and the downlink positioning reference signal resources in the second resource set, and the second The transmission direction of the downlink positioning reference signal resource is the same as the first transmission direction.

Optionally, locating the position of the terminal according to the second measurement result includes:

Obtain downlink positioning reference signal angle information corresponding to the downlink positioning reference signal resource reported by the base station;

Positioning the position of the terminal according to the second measurement result and the angle information of the downlink positioning reference signal.

In a second aspect, a positioning method is provided, which is applied to a base station, and the method includes:

Transmitting downlink positioning reference signal resources in the first resource set to the terminal, or transmitting downlink positioning reference signal resources in the first resource set and the second resource set to the terminal, the first resource set and the second resource set including multiple downlink positioning reference signals Positioning reference signal resources;

transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction determined by the positioning server, where the downlink positioning reference signal resources are used by the terminal to measure the received downlink positioning reference signal resources , obtaining a second measurement result, and used for the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.

Optionally, the transmitting the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction determined by the positioning server includes:

receiving a first message sent by the positioning server; wherein the first message is used to instruct the base station to transmit the downlink positioning reference signal resources in the second resource set based on the first transmission direction, and the first message uses Informing the terminal that the direction in which the base station transmits the downlink positioning reference signal resources in the second resource set is a first transmission direction.

Optionally, the first message includes one of the first transmission direction, the index of the second downlink positioning reference signal resource, the second QCL relationship, or the first indication message, and the first transmission direction determined according to the positioning server Transmitting the downlink positioning reference signal resource in the second resource set to the terminal includes:

When the content of the first message is the first transmission direction, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction, and the first transmission direction is the positioning determined by the server according to the first measurement result reported by the terminal, where the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal in the first resource set;

When the content of the first message is the index of the second downlink positioning reference signal resource, transmit the second downlink positioning reference signal resource corresponding to the index to the terminal, the second downlink positioning reference signal resource determining, for the positioning server, a downlink positioning reference signal resource to be transmitted to the terminal from a second resource set according to the first measurement result reported by the terminal and the first QCL relationship, where the first QCL relationship is the first resource a QCL relationship between the concentrated downlink positioning reference signal resources and the downlink positioning reference signal resources in the second resource set, where the transmission direction of the second downlink positioning reference signal resources is the same as the first transmission direction;

When the content of the first message is the second QCL relationship, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the second QCL relationship, where the second QCL relationship is the second QCL relationship A QCL relationship between the first downlink positioning reference signal resource and the first downlink positioning reference signal resource configured by the positioning server for the downlink positioning reference signal resource in the second resource set according to the first transmission direction;

When the content of the first message is the first indication message, adjusting the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction and transmitting to the terminal.

transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first message and the transmission period of the second resource set; or,

After the period after the terminal reports the first measurement result reaches a preset period, transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first message; or,

After the positioning server or the base station sends the feedback information based on the first measurement result reported by the terminal to the terminal for a preset period, transmit the second set of resources to the terminal according to the first message The downlink positioning reference signal resources; wherein, the preset duration is predefined by the system, or the duration included in the signaling sent by the positioning server.

Optionally, the method also includes:

Receiving a first request sent by a positioning server, where the first request is used to request acquisition of downlink positioning reference signal angle information corresponding to a downlink positioning reference signal resource;

reporting the angle information to the positioning server, where the angle information is used by the positioning server to locate the position of the terminal according to the angle information and the second measurement result.

In a third aspect, a positioning method is provided, which is applied to a base station, and the method includes:

Receiving a first measurement result sent by the positioning server; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal in the first resource set;

determining a first transmission direction of downlink positioning reference signal resources in the second resource set according to the first measurement result;

transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction, the downlink positioning reference signal resource is used for the terminal to measure the received downlink positioning reference signal resource, and obtain The second measurement result is used for the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.

Optionally, the transmitting the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction includes:

transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction; or,

transmit a second downlink positioning reference signal resource to the terminal; wherein, the second downlink positioning reference signal resource is the downlink determined from the second resource set and transmitted to the terminal according to the first measurement result and the first QCL relationship positioning reference signal resources, the first QCL relationship is the QCL relationship between the downlink positioning reference signal resources in the first resource set and the downlink positioning reference signal resources in the second resource set, and the second downlink positioning reference signal resource The transmission direction of the signal resource is the same as the first transmission direction; or,

Adjusting the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction and transmitting to the terminal.

transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction and the transmission period of the second resource set; or,

After the time period after the terminal reports the first measurement result reaches a preset time period, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction; or,

After the positioning server or the base station sends the feedback information based on the first measurement result reported by the terminal to the terminal for a preset period, transmit the second resource to the terminal according to the first transmission direction Concentrated downlink positioning reference signal resources; wherein, the preset duration is predefined by the system, or the duration included in the signaling sent by the positioning server.

Optionally, the method also includes:

Receive a first request sent by the positioning server, where the first request is used to request to obtain downlink positioning reference signal angle information corresponding to the downlink positioning reference signal resource;

In a fourth aspect, a positioning method is provided, which is applied to a terminal, and the method includes:

receiving a first resource set and a second resource set transmitted by a base station, where the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

measuring the downlink positioning reference signal resources in the first resource set to obtain a first measurement result;

According to the first measurement result, measure the downlink positioning reference signal resources in the second resource set to obtain a second measurement result;

Reporting the first measurement result and the second measurement result to a positioning server, where the first measurement result and the second measurement result are used by the positioning server to locate the position of the terminal.

Optionally, the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement result includes the downlink positioning reference signal resource in the second resource set Reference signal resource information and an index of downlink positioning reference signal resources, where the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.

Optionally, the measuring the downlink positioning reference signal resource in the second resource set according to the first measurement result to obtain a second measurement result includes:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource with the largest reference signal power in the first resource set;

According to the first QCL relationship between the downlink positioning reference signal resource in the first resource set and the downlink positioning reference signal resource in the second resource set, determine the first downlink positioning reference signal resource corresponding to the first downlink positioning reference signal resource from the second resource set. 2. Downlink positioning reference signal resources;

Performing measurement on the second downlink positioning reference signal resource to obtain the second measurement result.

In a fifth aspect, a positioning device is provided, which is applied to a positioning server, and the device includes:

A processing module, configured to configure a first resource set and a second resource set for the terminal; the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

A communication module, configured to receive a first measurement result reported by the terminal; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal resources in the first resource set transmitted by the base station;

The processing module is further configured to determine a first transmission direction of downlink positioning reference signal resources in the second resource set according to the first measurement result; or, the communication module is further configured to send to the base station the first measurement result, where the first measurement result is used by the base station to determine the first transmission direction;

The communication module is further configured to receive a second measurement result reported by the terminal, and the processing module is configured to locate the position of the terminal according to the second measurement result; wherein the second measurement result is the The terminal measures the received downlink positioning reference signal resources in the second resource set transmitted by the base station according to the first transmission direction.

In a sixth aspect, a positioning device is provided, which is applied to a base station, and the device includes:

A communication module, configured to transmit downlink positioning reference signal resources in the first resource set to the terminal, or transmit downlink positioning reference signal resources in the first resource set and the second resource set to the terminal, the first resource set and the second resource Centrally including multiple downlink positioning reference signal resources;

The communication module is configured to transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction determined by the positioning server, and the downlink positioning reference signal resources are used by the terminal for the received The downlink positioning reference signal resource is measured to obtain a second measurement result, which is used by the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.

In a seventh aspect, a positioning device is provided, which is applied to a base station, and the device includes:

The communication module is further configured to receive a first measurement result sent by the positioning server; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal in the first resource set;

A processing module, configured to determine a first transmission direction of downlink positioning reference signal resources in the second resource set according to the first measurement result;

The processing module is further configured to transmit downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction, and the downlink positioning reference signal resources are used for downlink positioning reference signal resources received by the terminal. The positioning reference signal resource is measured to obtain a second measurement result, and is used for the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.

In an eighth aspect, a positioning device is provided, which is applied to a terminal, and the device includes:

A communication module, configured to receive a first resource set and a second resource set transmitted by a base station, where the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

A processing module, configured to measure the downlink positioning reference signal resources in the first resource set to obtain a first measurement result;

The processing module is further configured to measure the downlink positioning reference signal resources in the second resource set according to the first measurement result to obtain a second measurement result;

The communication module is further configured to report the first measurement result and the second measurement result to a positioning server, and the first measurement result and the second measurement result are used by the positioning server to determine the position of the terminal to locate.

In a ninth aspect, a positioning server is provided, including: a processor, a memory, and a communication interface; wherein,

The communication interface is used to receive and send data and/or messages under the control of the processor;

The memory is used to store program instructions;

The processor is configured to call the program instructions stored in the memory, according to the steps included in the method according to any one of the first aspects obtained from the program instructions.

In a tenth aspect, a base station is provided, including: a processor, a memory, and a communication interface; wherein,

The memory is used to store program instructions;

The processor is configured to call the program instructions stored in the memory, and execute the second party according to the obtained program instructions.

The steps included in the method described in any one of the above or the third aspect.

In an eleventh aspect, a terminal is provided, including: a processor, a memory, and a communication interface; wherein,

The memory is used to store program instructions;

The processor is configured to invoke program instructions stored in the memory, and execute the steps included in any one of the methods in the fourth aspect according to the obtained program instructions.

In a twelfth aspect, there is provided a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer perform any one of the methods described in the first aspect, including A step of.

In a thirteenth aspect, a computer-readable storage medium is provided, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute any one of the second aspect or the third aspect. The steps included in the method described above.

In a fourteenth aspect, there is provided a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer perform any one of the methods described in the fourth aspect, including A step of.

In this embodiment of the present application, the first transmission direction of the downlink positioning reference signal in the second resource set is determined based on the measurement result of the downlink positioning reference signal in the first resource set, and then the first transmission direction based on the first transmission direction Based on the measurement results of the downlink positioning reference signal resources in the second resource set, the terminal is positioned. Since the terminal still measures the downlink positioning reference signal transmitted by the base station based on the original method, the measurement complexity of the terminal will not be increase, and at the same time, because the second measurement result that the positioning server finally refers to when performing positioning is the measurement result obtained by the terminal from measuring multiple downlink positioning reference signal resources from the same transmission direction (transmission in the first transmission direction), so that the terminal The second measurement result obtained by the measurement is more accurate, so that the positioning accuracy of the positioning server for positioning the terminal can be effectively improved.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only for the application. some examples.

Fig. 1 is the positioning system architecture of the 5G NR system in the embodiment of the present application;

FIG. 2 is a transmission mode of a two-level PRS resource provided by an embodiment of the present application;

Fig. 3 is a process interaction diagram of a positioning method provided by an embodiment of the present application;

FIG. 4 is a process interaction diagram of another positioning method provided in the embodiment of the present application;

FIG. 5 is a structural block diagram of a positioning device of a positioning server provided by an embodiment of the present application;

FIG. 6 is a structural block diagram of a positioning device for a base station provided in an embodiment of the present application;

FIG. 7 is a structural block diagram of another base station positioning device provided in an embodiment of the present application;

FIG. 8 is a structural block diagram of a positioning device for a terminal provided in an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a positioning server provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a base station provided in an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a terminal provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the application clearer, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

The terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the term "comprises", as well as any variations thereof, is intended to cover non-exclusive protections. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses. "Multiple" in the present application may mean at least two, for example, two, three or more, which is not limited in this embodiment of the present application.

In addition, the term "and/or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character "/" in this article, unless otherwise specified, generally indicates that the contextual objects are an "or" relationship.

Part of the terms used in the embodiments of the present application are explained below to facilitate the understanding of those skilled in the art.

(1) Network equipment, which is a device that provides wireless communication functions for the terminal, including but not limited to: gNB in 5G, radio network controller (Radio Network Controller, RNC), node B (Node B, NB) , Base Station Controller (Base Station Controller, BSC), Base Transceiver Station (Base Transceiver Station, BTS), Home Base Station (for example, Home evolved NodeB, or Home Node B, HNB), Base Band Unit (Base Band Unit, BBU), Transmission point (Transmitting and Receiving Point, TRP), transmitting point (Transmitting Point, TP), mobile switching center, etc. The base station in this application may also be a device that provides wireless communication functions for terminals in other communication systems that may appear in the future. In this embodiment of the present application, a base station is taken as an example for description.

(2) A terminal is a device that can provide voice and/or data connectivity to users. For example, the terminal device includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like. At present, terminal devices can be: mobile phone (Mobile Phone), tablet computer, notebook computer, handheld computer, mobile Internet device (Mobile Internet Device, MID), wearable device, virtual reality (Virtual Reality, VR) device, augmented reality ( Augmented Reality (AR) equipment, wireless terminals in Industrial Control, wireless terminals in Self-Driving, wireless terminals in Smart Grid, and transportation safety Wireless terminals, wireless terminals in Smart City, or wireless terminals in Smart Home, etc.

(3) A reference signal for downlink positioning, referred to as a downlink positioning reference signal in the embodiment of the present application, such as a PRS. The positioning server can configure the PRS resource to the base station, so that the base station sends the PRS according to the PRS resource. The positioning server can configure one or more PRS resources to the base station.

(4) A reference signal used for uplink positioning, which is called a sounding reference signal in the embodiment of the present application, such as SRS. The positioning server can configure the SRS resource to the terminal, so that the terminal sends the SRS according to the SRS resource. The positioning server can configure one or more SRS resources to the terminal.

In NR, corresponding positioning measurement values are defined for each positioning technology, as follows:

NR DL-TDOA: UE reports DL RSTD (Downlink-Relative Signal Time Difference, downlink-relative signal time difference), and optionally reports DL PRS RSRP (Reference Signal Received Power, reference signal received power);

NR DL-AoD: UE reports DL PRS RSRP;

NR UL-TDOA: gNB reports RTOA (Relative Time of Arrival, relative time of arrival), and optionally reports DL PRS RSRP;

NR UL-AoA: gNB reports A-AoA (Angle of Arrival, Azimuth of Arrival) and Z-AoA (Zenith Angle of Arrival, Elevation of Arrival), and can optionally report UL SRS-RSRP;

NR Multi-RTT: UE reports the time difference between sending and receiving of UE, and can optionally report DL PRS RSRP; gNB reports the difference between sending and receiving time of gNB, and can optionally report UL SRS-RSRP, and can optionally report A-AoA and Z-AoA.

For ease of understanding, the following first introduces the technical background of the embodiment of the present application.

Figure 1 shows the positioning-related entities in the 5G NR system. As shown in FIG. 1 , for 5G NR positioning, the entities involved include a terminal 101, a base station (102a, 102b, 102c) and a positioning server 103. Wherein, the positioning server is also called a location management function entity (Location Management Function, LMF).

Based on the above system architecture, in the conventional positioning technology, for the downlink positioning technology, the terminal 101 respectively measures the PRS resources sent by the base station (102a, 102b, 102c), where each PRS resource forms a different direction ( It can also be referred to as forming different beams), obtain the positioning measurement results and report them to the positioning server 103, and the positioning server 103 is based on the positioning measurement results reported by the terminal 101 and the angle information of each PRS resource reported by the base stations 102a, 102b, and 102c , determine the departure angles of the PRS resources sent by the base stations 102a, 102b, and 102c to the terminal 101, and then determine the location information of the terminal 101 according to the departure angles. Specifically, the terminal 101 measures the multiple beams sent by the base stations 102a, 102b, and 102c, and feeds back the RSRP corresponding to each beam to the positioning server 103, and the positioning server 103 uses the RSRP fed back by the terminal 101 and the information reported by the base stations 102a, 102b, and 102c. For the sending angle corresponding to each beam, the position of the terminal 101 is calculated using a position calculation algorithm.

For uplink positioning, the base stations 102a, 102b, and 102c measure the SRS resources sent by the terminal 101 respectively, wherein each SRS resource forms a different direction after being shaped (also called forming different beams), and the positioning The measurement results are reported to the positioning server 103, and the positioning server 103 calculates the position of the terminal 101 based on the positioning measurement results reported by the base stations 102a, 102b, and 102c and the corresponding sending direction of each beam reported by the terminal 101.

Taking the downlink positioning technology DL-AoD as an example, the positioning server 103 calculates the position information of the terminal by measuring and reporting the RSRP of the PRS resource reported by the terminal 101 and the transmission angle of the corresponding PRS resource reported by the base station. When the number of PRS resources is small or the beams sent by base stations 102a, 102b, and 102c are relatively wide, the position of terminal 101 calculated by the positioning server 103 using the location calculation algorithm is not accurate enough, and when the PRS resources sent by base stations 102a, 102b, and 102c When the number of is large or the beams sent by base stations 102a, 102b and 102c are narrow, the complexity of measurement by terminal 101 will increase, and the resource overhead of reference signals of base stations 102a, 102b and 102c will also increase.

In view of this, an embodiment of the present application provides a positioning method, which determines the first transmission direction of the downlink positioning reference signal in the second resource set by measuring the measurement result of the downlink positioning reference signal in the first resource set, and then determines the first transmission direction of the downlink positioning reference signal in the second resource set, and then determines the Positioning the terminal based on the measurement results of downlink positioning reference signal resources in the second resource set transmitted in the first transmission direction can improve positioning accuracy while ensuring measurement complexity.

In the downlink positioning method provided by the embodiment of the present application, the base station transmits two-level PRS resources (that is, the first resource set and the second resource set) to the terminal. Please refer to FIG. It should be noted that in the positioning method provided in the embodiment of the present application, at least three base stations are required to participate, and the transmission mode of the other at least two base stations for the two-level PRS resource is the same as that shown in FIG. 2 .

Figure 3 is a process interaction diagram of a positioning method provided in the embodiment of the present application, and the process steps are as follows:

Step 301: The positioning server configures the first resource set and the second resource set for the terminal;

In this embodiment of the application, the first resource set and the second resource set include multiple PRS resources, and each PRS resource in the first resource set can correspond to a direction after being shaped, and different PRS resources correspond to different directions. The direction corresponding to the resource may be described by angle information, and the angle information may include at least one of a horizontal dimension angle and a vertical dimension angle. Wherein, the first resource set and the second resource set configured by the positioning server for the terminal are sent to the positioning server after being configured by the base station.

Step 302: the base station transmits the PRS resources in the first resource set to the terminal, or transmits the PRS resources in the first resource set and the second resource set to the terminal;

Wherein, the base station transmits the PRS resource to the terminal may include the following two transmission modes:

Mode 1: PRS resources in the first resource set are transmitted periodically, and PRS resources in the second resource set are transmitted aperiodically;

Wherein, when the PRS in the second resource set is transmitted aperiodically, the transmission direction of the PRS resource in the second resource set can be determined according to the first measurement result of the PRS resource in the first resource set by the terminal. Therefore, in the second resource set When the centralized PRS is transmitted aperiodically, the base station may not shape the PRS resources in the second resource set (that is, do not specify a transmission direction for the PRS resources in the second resource set) when transmitting the PRS resources in the first resource set.

Manner 2: PRS resources in the first resource set are periodically transmitted, and PRS resources in the second resource set are transmitted periodically.

Wherein, when the PRS resources in the second resource set are transmitted periodically, the transmission direction of the PRS resources in the second resource set is not determined according to the first measurement result of the PRS resources in the first resource set by the terminal. Therefore, in the second resource set When the concentrated PRS resources are periodically transmitted, the base station needs to determine the transmission direction of the PRS resources in the second resource set when forming the PRS resources in the first resource set (that is, it needs to form the PRS resources in the second resource set) .

Step 303: The terminal measures the PRS resources in the first resource set, obtains a first measurement result, and reports the first measurement result to the positioning server;

In this embodiment of the application, regardless of whether the second resource set is periodic transmission or aperiodic transmission, the terminal only measures the PRS resources in the first resource set at this time, and after obtaining the first measurement result, the terminal will A measurement result is reported to the positioning server, wherein the first measurement result includes the RSRP of the PRS resource in the first resource set and the index of the PRS resource in the first resource set.

After the terminal reports the first measurement result to the positioning server, in a possible implementation manner, the positioning server may determine the first transmission direction by itself, and step 304a is performed at this time; in another possible implementation manner, the positioning server also The first measurement result may be directly sent to the base station, so that the base station determines the first transmission direction, and step 304b is performed at this time.

Step 304a: The positioning server determines the first transmission direction of the PRS resource in the second resource set according to the first measurement result;

In this embodiment of the present application, when receiving the first measurement result reported by the terminal, the positioning server determines the first PRS resource according to the first measurement result, and determines the transmission direction corresponding to the first PRS resource as the first transmission direction. Wherein, the first PRS resource is determined by the positioning server according to the RSRP in the first measurement result. Preferably, the first PRS resource is a PRS resource with the highest RSRP in the first resource set.

In a possible implementation manner, after determining the first transmission direction, the positioning server may also send a first message to the base station (or send the first message to the terminal and the base station at the same time), and the first message sent to the base station is used to indicate The base station transmits the PRS resources in the second resource set based on the first transmission direction; the first message sent to the terminal is used to inform the base station that the transmission direction of the PRS resources in the second resource set is the first transmission direction.

In a possible implementation manner, before sending the first message to the base station, the positioning server may first determine the content of the first message, for example, it may include: the first transmission direction, the second QCL relationship, the first indication message or One of the indexes of the second downlink positioning reference signal resource. Wherein, since the content contained in the first message may be related to whether the PRS resources in the second resource set are periodically transmitted or whether the PRS resources in the second resource set are configured with the first QCL relationship with the PRS resources in the first resource set, therefore, Before determining the content of the first message, the positioning server may also determine whether the PRS resources in the second resource set are configured with the first QCL relationship with the PRS resources in the first resource set.

Specifically, when the positioning server determines that the PRS resources in the second resource set are aperiodic transmissions, and the PRS resources in the second resource set are not configured with the first QCL relationship with the PRS resources in the first resource set, the positioning server may according to The first transmission direction configures the second QCL relationship between the PRS resources in the second resource set and the first PRS resource, and determines the second QCL relationship as the content of the first message; or, the positioning server directly determines the first transmission direction as The content of the first message. It should be noted that after the positioning server configures the second QCL relationship for the PRS resources in the second resource set, the direction in which the base station transmits the PRS resources in the second resource set to the terminal based on the second QCL relationship is the first transmission direction.

When the positioning server determines that the PRS resources in the second resource set are aperiodic transmission, and the PRS resources in the second resource set are configured with the first QCL relationship with the PRS resources in the first resource set, the positioning server may The result and the first QCL relationship determine the second PRS resource corresponding to the first PRS resource from the second resource set, and determine the index of the second PRS resource as the content of the first message.

When the positioning server determines that the PRS resources in the second resource set are periodically transmitted, and the PRS resources in the second resource set are not configured with the first QCL relationship with the PRS resources in the first resource set, the positioning server determines the first indication message is the content of the first message, and is used to instruct the base station to adjust the transmission direction of the PRS resources in the second resource set to the first transmission direction.

Step 304b: The positioning server sends the first measurement result to the base station, and the base station determines the first transmission direction of the PRS resource in the second resource set according to the first measurement result;

In the embodiment of the present application, the process of determining the first transmission direction by the base station is the same as the process of determining the first transmission direction of the PRS resources in the second resource set by the positioning server in step 304a, which will not be repeated here.

Step 305: The base station transmits the PRS resources in the second resource set to the terminal based on the first transmission direction;

In a possible implementation manner, the first transmission direction is determined by the positioning server and sent to the base station through a first message. At this time, when the base station determines that the content of the first message is the first transmission direction, transmit the PRS resource in the second resource set to the terminal; when the base station determines that the content of the first message is the index of the second PRS resource, transmit the second PRS resource corresponding to the index to the terminal; when determining the content of the first message, the base station When the content is the second QCL relationship, transmit the PRS resources in the second resource set to the terminal according to the second QCL relationship; when the base station determines that the content of the first message is the first indication message, transmit the PRS resources in the second resource set The transmission direction is adjusted so that the first transmission direction is transmitted to the terminal.

In a possible implementation manner, when the PRS resources in the second resource set are transmitted periodically, the way the base station transmits the PRS resources in the second resource set to the terminal based on the first transmission direction may be based on the first message and the second The transmission cycle of the resource set transmits the PRS resources in the second resource set to the terminal; when the PRS resources in the second resource set are aperiodically transmitted, after the time period after the terminal reports the first measurement result reaches the preset time period, or, after positioning After the server or the base station sends the feedback information based on the first measurement result reported by the terminal to the terminal for a preset duration, the server or the base station transmits the PRS resources in the second resource set to the terminal according to the first message; wherein, the preset duration is system preset Definition, or the duration included in the signaling sent by the positioning server.

In another possible implementation manner, the first transmission direction is determined by the base station according to the first measurement result, and at this time, the base station transmits the PRS resources in the second resource set to the terminal according to the first transmission direction; The terminal transmits the second PRS resource; or, the transmission direction of the PRS resource in the second resource set is adjusted to the first transmission direction and transmitted to the terminal.

In a possible implementation manner, when the PRS resources in the second resource set are transmitted periodically, the manner in which the base station transmits the PRS resources in the second resource set to the terminal based on the first transmission direction may be based on the first transmission direction and the second transmission direction. The transmission cycle of the second resource set transmits the PRS resources in the second resource set to the terminal; when the PRS resources in the second resource set are aperiodic transmission, after the period after the terminal reports the first measurement result reaches a preset period, or, After the positioning server or the base station sends the feedback information based on the first measurement result reported by the terminal to the terminal for a preset duration, transmit the PRS resources in the second resource set to the terminal according to the first transmission direction; where the preset duration is The system is predefined, or the duration included in the signaling sent by the positioning server.

Step 306: The terminal measures the PRS resources in the second resource set, obtains a second measurement result, and reports the second measurement result to the positioning server;

In the embodiment of the present application, after measuring the PRS resources in the second resource set, the terminal needs to report the corresponding parameters to the positioning server. Specifically, the terminal may measure the PRS resource according to the type of the measurement result configured by the positioning server, and obtain a corresponding type of measurement result. For example, the terminal may measure the PRS resources in the second resource set according to the configuration of the positioning server, obtain the RSTD or RSRP value corresponding to each PRS resource, and then report the corresponding parameters (ie, the second measurement result) to the positioning server. Wherein, the second measurement result includes: the RSTD or RSRP value corresponding to each PRS resource in the second resource set received by the terminal, and the index of the PRS resource.

Preferably, after obtaining the second measurement result, the terminal may also determine the third PRS resource according to the second measurement result, and report the index of the third resource and the corresponding RSRP or RSTD to the positioning server. Wherein, the third PRS resource may be the first M PRS resources with the strongest RSRP or the smallest RSTD in the second resource set.

Step 307: The positioning server locates the position of the terminal according to the second measurement result and the angle information reported by the base station.

In the embodiment of the present application, after receiving the first measurement result reported by the terminal, the positioning server may also send a first request to the base station to obtain the PRS angle information corresponding to the PRS resource; specifically, the first request may be an indication by the positioning server The base station reports the PRS angle information corresponding to all the PRS resources configured by it, or the positioning server instructs the base station to report the PRS angle information corresponding to all the PRS resources in the second resource set, or it can also be the PRS angle information corresponding to the second PRS resource , or after receiving the second measurement result reported by the terminal, the positioning server may instruct the base station that the second measurement result reported by the base station contains The PRS angle information corresponding to the PRS resource index. After the base station reports the angle information, the positioning server calculates the position of the terminal by using a position calculation algorithm on the PRS angle information corresponding to the same resource index and the second measurement result, so as to realize the position positioning of the terminal.

In some other embodiments, after obtaining the first measurement result, the terminal may also determine the first PRS resource according to the first measurement result, and report the index of the first PRS resource to the positioning server, and the positioning server sends the first PRS The transmission direction of the resource is determined as the first transmission direction, and the first transmission direction is sent to the base station, or the second QCL relationship is configured for the PRS resources in the second resource set and the second QCL relationship is sent to the base station, or the first PRS resource The index of is sent to the base station, so that the base station determines the first transmission direction of the PRS resource in the second resource set according to the index. Wherein, the method for the terminal to determine the first PRS resource is the same as the aforementioned method for the positioning server to determine the first PRS resource, and will not be repeated here.

The foregoing embodiments only illustrate the following three modes:

The first type: periodic transmission of PRS resources in the first resource set, aperiodic transmission of PRS resources in the second resource set, and no QCL relationship between the PRS resources in the first resource set and the PRS resources in the second resource set;

The second type: periodic transmission of PRS resources in the first resource set, aperiodic transmission of PRS resources in the second resource set, and a QCL relationship between the PRS resources in the first resource set and the PRS resources in the second resource set;

The third type: periodic transmission of PRS resources in the first resource set, periodic transmission of PRS resources in the second resource set, and no QCL relationship between the PRS resources in the first resource set and the PRS resources in the second resource set.

In some other embodiments, the way the base station transmits the PRS resources in the first resource set and the second resource set to the terminal also includes the following fourth situation:

The periodic transmission of PRS resources in the first resource set and the periodic transmission of PRS resources in the second resource set configure the QCL relationship between the PRS resources in the first resource set and the PRS resources in the second resource set.

For the fourth case, please refer to FIG. 4. FIG. 4 is an interaction flow diagram of another positioning method provided in the embodiment of the present application, and the process steps are as follows:

Step 401: The positioning server configures the first resource set and the second resource set for the terminal;

Step 402: the base station transmits the PRS resources in the first resource set and the second resource set to the terminal;

In the embodiment of the present application, the base station transmits the PRS resources in the first resource set and the second resource set to the terminal according to the PRS angle information (or called the transmission direction) corresponding to each PRS resource.

Step 403: The terminal measures the PRS resources in the first resource set to obtain a first measurement result;

Specifically, the terminal measures only the PRS resources in the first resource set according to the related information of the first resource set and the second resource set configured by the positioning server, and obtains the first measurement result. It should be noted that the terminal may report the first measurement result to the positioning server after obtaining the first measurement result, or may report the first measurement result and the second measurement result to the positioning server at the same time after the terminal obtains the second measurement result. In the embodiment of the application, the time for the terminal to report the first measurement result and the second measurement result is not limited. Wherein, the first measurement result includes the RSRP of the PRS resource in the first resource set and the index of the PRS resource in the first resource set.

Step 404: The terminal measures the PRS resources in the second resource set according to the first measurement result, and obtains the second measurement result;

In this embodiment of the present application, the terminal determines the first PRS resource according to the first measurement result. Wherein, the first PRS resource is determined by the positioning server according to the RSRP in the first measurement result. Preferably, the first PRS resource is a PRS resource with the highest RSRP in the first resource set. After determining the first PRS resource, the terminal selects a second PRS resource that has a QCL relationship with the first PRS resource from the PRS resources in the second resource set according to the first QCL relationship, and measures the second PRS resource , to obtain the second measurement result. Wherein, the second measurement result includes: the RSTD or RSRP value corresponding to the second PRS resource received by the terminal, and the index of the PRS resource.

Step 405: The terminal reports the first measurement result and the second measurement result to the positioning server;

In this embodiment of the present application, the terminal reports the index of the PRS resource in the first resource set and the corresponding RSRP value, and the RSTD or RSRP value corresponding to the second PRS resource in the second resource set, and the index of the PRS resource to the positioning server , preferably, the terminal only reports the index of the first PRS resource in the first resource set and the corresponding RSRP value to the positioning server.

Step 406: The positioning server sends to the base station a first request for acquiring PRS angle information corresponding to the PRS resource;

Specifically, the first request may be that the positioning server instructs the base station to report the PRS angle information corresponding to all the PRS resources configured by it, or that the positioning server instructs the base station to report the PRS angle information corresponding to all the PRS resources in the second resource set, or It may be that the positioning server instructs the base station to report the PRS angle information corresponding to the second PRS resource index, or it may also be that the positioning server, after receiving the second measurement result reported by the terminal, according to the PRS resource information contained in the second measurement result reported by the terminal (for example, PRS resource index), indicating the PRS angle information corresponding to the PRS resource index included in the second measurement result reported by the base station.

Step 407: the base station reports the angle information of the PRS resource to the positioning server according to the first request;

Step 408: The positioning server locates the position of the terminal according to the first measurement result, the second measurement result, and the angle information reported by the base station.

In the embodiment of the present application, during the positioning process, the positioning server essentially locates the position of the terminal according to the second measurement result and angle information. Specifically, if what the base station reports in step 407 is the PRS angle information corresponding to all the PRS resources configured by it, or the PRS angle information corresponding to all the PRS resources in the second resource set, or the PRS angle information corresponding to the second PRS resource index, Then the positioning server selects the PRS angle information of the PRS resource corresponding to the PRS resource index in the second measurement result from all the PRS resources, or the PRS resources in the second resource set, or the second PRS resource, and selects the same resource index The corresponding PRS angle information and the second measurement result use a position calculation algorithm to calculate the position of the terminal, so as to realize the position positioning of the terminal.

In some embodiments, after obtaining the second measurement result, the terminal may also determine the third PRS resource according to the second measurement result, and report the index of the third resource and the corresponding RSRP or RSTD to the positioning server. Wherein, the third PRS resource may be a PRS resource with the strongest RSRP or the smallest RSTD among the second PRS resources.

In order to better understand the technical solution of the present application, the positioning method provided by the present application will be explained below in conjunction with specific embodiments.

Embodiment 1: The first resource set is transmitted periodically, the second resource set is transmitted aperiodically, the first resource set contains N PRS resources, and each PRS resource and SSB (Synchronization Signal/PBCH, synchronous broadcast block) are configured with QCL , the second resource set includes M PRS resources, and the PRS resources in the M PRS resources are not configured with the first QCL relationship. In this case, the specific steps of the positioning method of the present application are as follows:

Step 1: The base station sends N PRS resources in the first resource set, the terminal measures the N PRS resources, obtains the first measurement result, and reports the first measurement result to the positioning server; the first measurement result includes N The index of the PRS resource and the corresponding RSRP result; or, the terminal may also determine the PRS resource with the largest RSRP in the first resource set according to the first measurement result, and report the index of the PRS resource with the largest RSRP to the positioning server;

Step 2: The positioning server determines the first transmission direction of the M PRS resources in the second resource set according to the first measurement result reported by the terminal or the index of the PRS resource with the largest RSRP (the first transmission direction may be the PRS resource corresponding to the largest RSRP transmission direction), and inform the base station of the first transmission direction, or may notify both the base station and the terminal; or, the positioning server configures the second QCL relationship for the M PRS resources in the second resource set according to the first transmission direction , and inform the base station of the QCL relationship, or both the base station and the terminal; or, the positioning server directly informs the base station of the first measurement result, and the base station determines M PRS resources in the second resource set according to the first measurement result The first transmission direction; wherein, the positioning server notifies the base station of the first transmission direction, the second QCL relationship or the first measurement result by sending a first message containing the foregoing content to the base station;

Step 3: According to the first transmission direction indicated by the positioning server, or the second QCL relationship configured by the positioning server, or the first transmission direction determined by the base station itself according to the first measurement result, after a preset period of time (for example, T time), the base station reports to the terminal transmit the M PRS resources in the second resource set; the terminal may also be notified of the first transmission direction or the second QCL relationship;

Step 4: The terminal receives M PRS resources in the second resource set; at this time, the terminal can default that the base station will use the direction corresponding to the PRS resource with the strongest RSRP in the first resource set for transmission, that is, the terminal transmits in the direction corresponding to the PRS resource with the strongest RSRP in the first resource set. The direction corresponding to the PRS resources in the second resource set receives the M PRS resources in the second resource set; or, the terminal receives the M PRS resources in the second resource set according to the first transmission direction or the second QCL relationship notified by the base station or the positioning server. resources to receive;

Step 5: The terminal measures the M PRS resources in the second resource set, obtains a second measurement result, and reports the second measurement result to the positioning server; the second measurement result includes the indexes of the M PRS resources and the corresponding RSTD result or RSRP result; or, the terminal may also determine the L PRS resources with the largest RSRP or the smallest RSTD among the M PRS resources in the second resource set according to the second measurement result, and use the L PRS resources with the largest RSRP or the smallest RSTD The index and the corresponding RSRP or RSTD are reported to the positioning server, and L is less than M;

Step 6: The positioning server sends to the base station a first request for acquiring PRS angle information corresponding to the PRS resources in the second resource set;

Step 7: The base station reports the PRS angle information corresponding to the PRS resource in the second resource set to the positioning server;

Step 8: The positioning server locates the position of the terminal based on the second measurement result and the angle information reported by the base station.

Embodiment 2: The first resource set is transmitted periodically, and the second resource set is transmitted aperiodically. The first resource set contains N PRS resources, each PRS resource and SSB are configured with QCL, and the second resource set contains N×M PRS resources. For the PRS resource, every M PRS resource in the second resource set is configured with a first QCL relationship with one PRS resource in the first resource set. In this case, the specific steps of the positioning method of the present application are as follows:

Step 1: the base station sends N PRS resources in the first resource set, and the terminal measures the N PRS resources to obtain a first measurement result;

Step 2: The terminal reports the first measurement result to the positioning server (for example, after the RSRPs are sorted in descending order, the indexes of the top K PRS resources and the corresponding RSRP values are reported to the positioning server, K is an integer greater than or equal to 1);

Step 3: The positioning server determines the first PRS resource (for example, the PRS resource with the largest RSRP) according to the first measurement result, and the positioning server selects M PRS resources corresponding to the first PRS resource from the second resource set according to the first QCL relationship (that is, select M PRS resources with the first PRS resource QCL), and notify the base station of the indexes of the M PRS resources, or both the base station and the terminal may be notified, or the positioning server directly sends the first PRS resource Inform the index of the index to the base station, or inform the base station and the terminal, so that the base station selects M PRS resources corresponding to the first PRS resource from the second resource set according to the first QCL relationship (that is, selects the M PRS resources corresponding to the first PRS resource M PRS resources of the QCL), wherein the positioning server notifies the base station of the indexes of the M PRS resources or the index of the first PRS resource by sending the first message containing the aforementioned content to the base station;

Step 4: The base station transmits the M PRS resources corresponding to the second PRS resource in the second resource set to the terminal, and may also inform the terminal of the indexes of the M PRS resources or the index of the first PRS resource;

Step 5: The terminal receives M PRS resources corresponding to the second PRS resource; at this time, the terminal can default that the base station will use the direction corresponding to the PRS resource with the strongest RSRP in the first resource set for transmission, that is, the terminal transmits in the direction corresponding to the PRS resource with the strongest RSRP in the first resource set. The direction corresponding to the strongest PRS resource receives the M PRS resources in the second resource set; or, the terminal receives the indexes of the M PRS resources or the index of the first PRS resource notified by the base station or the positioning server, based on the index The corresponding QCL relationship receives M PRS resources in the second resource set;

Step 6: The terminal measures M PRS resources, obtains a second measurement result, and reports the second measurement result to the positioning server; the second measurement result includes indexes of M PRS resources and corresponding RSTD results or RSRP results; Alternatively, the terminal may also determine the L PRS resources with the largest RSRP or the smallest RSTD among the M PRS resources in the second resource set according to the second measurement result, and compare the indexes of the L PRS resources with the largest RSRP or the smallest RSTD with the corresponding RSRP or RSTD is reported to the positioning server, L is less than M;

Step 7: The positioning server sends to the base station a first request for acquiring PRS angle information corresponding to the PRS resources in the second resource set;

Step 8: The base station reports the PRS angle information corresponding to the PRS resource in the second resource set to the positioning server;

Step 9: The positioning server locates the position of the terminal based on the second measurement result and the angle information reported by the base station.

Embodiment 3: The first resource set is periodically transmitted, and the second resource set is periodically transmitted. The first resource set contains N PRS resources, each PRS resource and SSB are configured with QCL, and the second resource set contains M PRS resources. The PRS resources among the M PRS resources are not configured with the first QCL relationship. In this case, the specific steps of the positioning method of the present application are as follows:

Step 1: The base station sends N PRS resources in the first resource set and M PRS resources in the second resource set, the terminal measures the N PRS resources, obtains the first measurement result, and reports the first measurement result to the positioning The server; the first measurement result includes indexes of N PRS resources and corresponding RSRP results, or indexes of K PRS resources ranked first by RSRP and corresponding RSRP results;

Step 2: The positioning server determines the first transmission direction of the M PRS resources in the second resource set according to the first measurement result reported by the terminal (the first transmission direction may be the transmission direction corresponding to the PRS resource with the largest RSRP in the first resource set) , and inform the base station of the first transmission direction, or both the base station and the terminal; or, the positioning server directly informs the base station of the first measurement result, and the base station determines M PRSs in the second resource set according to the first measurement result The first transmission direction of the resource may also inform the terminal of the first transmission direction, wherein the positioning server may notify the base station of the first transmission direction or the first measurement result by sending a first message containing the aforementioned content to the base station;

Step 3: the base station adjusts the transmission direction of the M PRS resources in the second resource set to the first transmission direction and transmits it to the terminal;

Step 4: The terminal receives M PRS resources in the second resource set; at this time, the terminal can default that the base station will use the direction corresponding to the PRS resource with the strongest RSRP in the first resource set for transmission; or the terminal receives the first PRS resource notified by the base station or the positioning server. A transmission direction, based on which direction M PRS resources in the second resource set are received;

Step 6: The positioning server sends to the base station a first request for obtaining the PRS angle information corresponding to the PRS resource in the second resource set;

Embodiment 4: The first resource set is periodically transmitted, the second resource set is periodically transmitted, the first resource set contains N PRS resources, each PRS resource and SSB are configured with QCL, and the second resource set contains N×M PRS resources, every M PRS resource in the second resource set is configured with a first QCL relationship with one PRS resource in the first resource set. In this case, the specific steps of the positioning method of the present application are as follows:

Step 1: the base station sends N PRS resources in the first resource set and N×M PRS resources in the second resource set, and the terminal measures the N PRS resources in the first resource set to obtain a first measurement result;

Step 2: The terminal determines the first PRS resource (for example, the PRS resource with the largest RSRP in the first resource set) according to the first measurement result, and determines that it has the first QCL relationship with the first PRS resource from the second resource set according to the first QCL relationship M PRS resources;

Step 3: The terminal measures the M PRS resources, obtains the second measurement result, and reports the second measurement result and the first measurement result to the positioning server; wherein, the first measurement result may only include the index of the first PRS resource and the corresponding RSRP, the second measurement result may include indexes of M PRS resources and corresponding RSTD results or RSRP results; or, the terminal may also determine the maximum or maximum RSRP among the M PRS resources in the second resource set according to the second measurement result L PRS resources with the smallest RSTD, and report the indexes of the L PRS resources with the largest RSRP or the smallest RSTD and the corresponding RSRP or RSTD to the positioning server, where L is less than M;

Step 4: The positioning server sends to the base station a first request for acquiring PRS angle information corresponding to the second PRS resource;

Step 5: the base station reports the PRS angle information corresponding to the second PRS resource to the positioning server;

Step 6: The positioning server locates the position of the terminal based on the second measurement result and the angle information reported by the base station.

Based on the same inventive concept, an embodiment of the present application provides a positioning device, which is applied to a positioning server, and the positioning device can realize the functions corresponding to the positioning method of the aforementioned positioning server. The positioning device may be a hardware structure, a software module, or a hardware structure plus a software module. The positioning device may be realized by a chip system, and the chip system may be composed of chips, or may include chips and other discrete devices. Referring to FIG. 5 , the positioning device includes a processing module 501 and a communication module 502 . in:

The processing module 501 is configured to configure a first resource set and a second resource set for the terminal; the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

The communication module 502 is configured to receive a first measurement result reported by the terminal; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal resources in the first resource set transmitted by the base station;

The processing module 501 is further configured to determine a first transmission direction of downlink positioning reference signal resources in the second resource set according to the first measurement result; or, the communication module is further configured to send the base station sending the first measurement result, where the first measurement result is used by the base station to determine the first transmission direction;

The communication module 502 is further configured to receive a second measurement result reported by the terminal, and the processing module 501 is configured to locate the position of the terminal according to the second measurement result; wherein, the second measurement result is a result obtained by the terminal measuring the received downlink positioning reference signal resources in the second resource set transmitted by the base station according to the first transmission direction.

Optionally, the processing module 501 is specifically used for:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource determined according to the reference signal power in the first measurement result;

Optionally, the communication module 502 is also used for:

Optionally, the first message includes:

said first direction of transmission; or,

Optionally, the processing module 501 is specifically used for:

Based on the same inventive concept, an embodiment of the present application provides a positioning device, the positioning device is applied to a base station, and the positioning device can implement the functions corresponding to the aforementioned base station positioning method. The positioning device may be a hardware structure, a software module, or a hardware structure plus a software module. The positioning device may be realized by a chip system, and the chip system may be composed of chips, or may include chips and other discrete devices. Referring to FIG. 6 , the positioning device includes a communication module 601 and a processing module 602 . in:

The communication module 601 is configured to transmit the downlink positioning reference signal resources in the first resource set to the terminal, or transmit the downlink positioning reference signal resources in the first resource set and the second resource set to the terminal, the first resource set and the second resource set The resource set includes multiple downlink positioning reference signal resources;

The communication module 601 is configured to transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction determined by the positioning server, the downlink positioning reference signal resources are used by the terminal to receive The downlink positioning reference signal resource is measured to obtain a second measurement result, which is used by the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.

Optionally, the communication module 601 is specifically used for:

Optionally, the first message includes one of the first transmission direction, the second downlink positioning reference signal resource index, the second QCL relationship, or the first indication message, and the communication module 601 is specifically configured to:

Optionally, the communication module 601 is specifically used for:

Optionally, the communication module 601 is also used for:

Based on the same inventive concept, an embodiment of the present application provides a positioning device, the positioning device is applied to a base station, and the positioning device can implement the functions corresponding to the aforementioned base station positioning method. The positioning device may be a hardware structure, a software module, or a hardware structure plus a software module. The positioning device may be realized by a chip system, and the chip system may be composed of chips, or may include chips and other discrete devices. Please refer to FIG. 7 , the positioning device includes a communication module 701 and a processing module 702 . in:

The communication module 701 is configured to transmit the downlink positioning reference signal resource in the first resource set to the terminal, or transmit the downlink positioning reference signal in the first resource set and the second resource set to the terminal, the first resource set and the second resource set The resource set includes multiple downlink positioning reference signal resources;

The communication module 701 is further configured to receive a first measurement result sent by the positioning server; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal in the first resource set;

A processing module 702, configured to determine a first transmission direction of downlink positioning reference signal resources in the second resource set according to the first measurement result;

The processing module 702 is further configured to transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction, and the downlink positioning reference signal resource is used by the terminal for the received The downlink positioning reference signal resource is measured to obtain a second measurement result, which is used by the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.

Optionally, the processing module 702 is specifically configured to:

Optionally, the communication module 701 is specifically used for:

Optionally, the communication module 701 is also used for:

Based on the same inventive concept, an embodiment of the present application provides a locating device, which is applied to a terminal, and the locating device can realize the function corresponding to the aforementioned terminal locating method. The positioning device may be a hardware structure, a software module, or a hardware structure plus a software module. The positioning device may be realized by a chip system, and the chip system may be composed of chips, or may include chips and other discrete devices. Please refer to FIG. 8 , the positioning device includes a communication module 801 and a processing module 802 . in:

A communication module 801, configured to receive a first resource set and a second resource set transmitted by a base station, where the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

A processing module 802, configured to measure the downlink positioning reference signal resources in the first resource set to obtain a first measurement result;

The processing module 801 is further configured to measure the downlink positioning reference signal resources in the second resource set according to the first measurement result to obtain a second measurement result;

The communication module 802 is further configured to report the first measurement result and the second measurement result to a positioning server, and the first measurement result and the second measurement result are used by the positioning server for the terminal location for positioning.

Optionally, the processing module 802 is specifically used for:

Based on the same technical idea, the embodiment of the present application also provides a positioning server. The positioning server can implement the functions of the positioning server side in the foregoing embodiments.

Please refer to FIG. 9 , which is a schematic structural diagram of a positioning server provided by an embodiment of the present application. The positioning server may include: a processor 901 , a memory 902 , a communication interface 903 and a bus interface 904 .

The processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 can store data used by the processor 901 when performing operations. The communication interface 903 is used to receive and send data under the control of the processor 901 .

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 901 and various circuits of the memory represented by the memory 902 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 can store data used by the processor 901 when performing operations.

The processes disclosed in the embodiments of the present application may be applied to the processor 901 or implemented by the processor 901 . In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 901 or instructions in the form of software. The processor 901 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902, and completes the steps of the signal processing flow in combination with its hardware.

Specifically, the processor 901 is configured to read computer instructions in the memory 902 and execute the functions implemented by the positioning server in the embodiment of the present application.

It should be noted here that the above positioning server provided by the embodiment of the present application can realize all the method steps implemented by the positioning server in the above method embodiment, and can achieve the same technical effect, and no further description will be made here in this embodiment. The same parts and beneficial effects of the method embodiments are described in detail.

Based on the same technical concept, the embodiment of the present application also provides a base station. The base station can implement the functions of the base station side in the foregoing embodiments.

Please refer to FIG. 10 , which is a schematic structural diagram of a base station provided by an embodiment of the present application. The base station may include: a processor 1001 , a memory 1002 , a communication interface 1003 and a bus interface 1004 .

The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1002 can store data used by the processor 1001 when performing operations. The communication interface 1003 is used to receive and send data under the control of the processor 1001 .

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1001 and various circuits of the memory represented by the memory 1002 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1002 can store data used by the processor 1001 when performing operations.

The processes disclosed in the embodiments of the present application may be applied to the processor 1001 or implemented by the processor 1001 . In the implementation process, each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 1001 or instructions in the form of software. The processor 1001 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002, and completes the steps of the signal processing flow in combination with its hardware.

Specifically, the processor 1001 is configured to read computer instructions in the memory 1002 and execute functions implemented by the base station in the embodiment of the present application.

What needs to be explained here is that the above-mentioned base station provided by the embodiment of the present application can realize all the method steps implemented by the base station in the above-mentioned method embodiment, and can achieve the same technical effect, so the implementation of the method and method in this embodiment will not be repeated here. The same parts and beneficial effects as the example are described in detail.

Based on the same technical concept, the embodiment of the present application also provides a terminal. The terminal can implement the functions of the terminal side in the foregoing embodiments.

Please refer to FIG. 11 , which is a schematic structural diagram of a terminal provided by an embodiment of the present application. The terminal may include: a processor 1101 , a memory 1102 , a communication interface 1103 and a bus interface 1104 .

The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1102 can store data used by the processor 1101 when performing operations. The communication interface 1103 is used to receive and send data under the control of the processor 1101 .

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1101 and various circuits of the memory represented by the memory 1102 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1102 can store data used by the processor 1101 when performing operations.

The processes disclosed in the embodiments of the present application may be applied to the processor 1101 or implemented by the processor 1101 . In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1101 or instructions in the form of software. The processor 1101 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102, and completes the steps of the signal processing process in combination with its hardware.

Specifically, the processor 1101 is configured to read computer instructions in the memory 1102 and execute the functions implemented by the terminal in the embodiment of the present application.

What needs to be explained here is that the above-mentioned terminal provided by the embodiment of the present application can realize all the method steps implemented by the terminal in the above-mentioned method embodiment, and can achieve the same technical effect, and the implementation of the method and method in this embodiment will not be repeated here. The same parts and beneficial effects as the example are described in detail.

The embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer execute the method executed by the location server in the foregoing embodiments.

The embodiment of the present application also provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the method executed by the base station in the foregoing embodiments.

The embodiment of the present application also provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and the computer-executable instructions are used to make a computer execute the method executed by the terminal in the foregoing embodiments.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A positioning method, characterized in that it is applied to a positioning server, the method comprising:

Configuring a first resource set and a second resource set for the terminal; the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

receiving a first measurement result reported by the terminal; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal resources in the first resource set transmitted by the base station;

According to the first measurement result, determine the first transmission direction of the downlink positioning reference signal resource in the second resource set; or send the first measurement result to the base station, the first measurement result is used for the The base station determines the first transmission direction;

receiving a second measurement result reported by the terminal, and locating the position of the terminal according to the second measurement result; wherein, the second measurement result is that the terminal receives the base station according to the first transmission direction The result obtained by performing measurement on the downlink positioning reference signal resources in the second resource set for transmission.
The method according to claim 1, wherein the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement The result includes the downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the second resource set received by the terminal, and the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.
The method according to claim 2, wherein the determining the first transmission direction of the downlink positioning reference signal resource in the second resource set according to the first measurement result comprises:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource determined according to reference signal power in the first measurement result;

determining the transmission direction of the first downlink positioning reference signal resource as the first transmission direction of the downlink positioning reference signal resource in the second resource set.
The method according to claim 1 or 3, wherein after determining the first transmission direction of the downlink positioning reference signal resource in the second resource set according to the first measurement result, further comprising:

sending a first message to the base station, or sending the first message to the base station and the terminal, where the first message is used to instruct the base station to transmit the downlink in the second resource set based on the first transmission direction The positioning reference signal resources, and the first message is used to notify the terminal that the base station transmits the downlink positioning reference signal resources in the second resource set in a first transmission direction.
The method according to claim 4, wherein the first message comprises:

said first direction of transport; or,

The second quasi-co-location QCL relationship; wherein, the second QCL relationship is the configuration of the positioning server for the downlink positioning reference signal resource in the second resource set according to the first transmission direction and the first downlink the QCL relationship of the positioning reference signal resource; or,

A first indication message, where the first indication message is used to instruct the base station to adjust the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction; or,

The index of the second downlink positioning reference signal resource; wherein, the second downlink positioning reference signal resource is determined by the positioning server to transmit from the second resource set according to the first measurement result and the first QCL relationship to the The downlink positioning reference signal resources of the terminal, the first QCL relationship is the QCL relationship between the downlink positioning reference signal resources in the first resource set and the downlink positioning reference signal resources in the second resource set, and the second The transmission direction of the downlink positioning reference signal resource is the same as the first transmission direction.
The method according to claim 1, wherein locating the position of the terminal according to the second measurement result comprises:

Obtain downlink positioning reference signal angle information corresponding to the downlink positioning reference signal resource reported by the base station;

Positioning the position of the terminal according to the second measurement result and the angle information of the downlink positioning reference signal.
A positioning method, characterized in that it is applied to a base station, the method comprising:

Transmitting downlink positioning reference signal resources in the first resource set to the terminal, or transmitting downlink positioning reference signal resources in the first resource set and the second resource set to the terminal, the first resource set and the second resource set including multiple downlink positioning reference signals Positioning reference signal resources;

According to the first transmission direction determined by the positioning server, transmit the downlink positioning reference signal resources in the second resource set to the terminal, where the downlink positioning reference signal resources are used by the terminal to perform the received downlink positioning reference signal resources. measuring, obtaining a second measurement result, and used by the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.
The method according to claim 7, wherein the transmitting the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction determined by the positioning server comprises:

receiving a first message sent by the positioning server; wherein the first message is used to instruct the base station to transmit the downlink positioning reference signal resources in the second resource set based on the first transmission direction.
The method according to claim 8, wherein the first message includes one of the first transmission direction, the index of the second downlink positioning reference signal resource, the second QCL relationship or the first indication message, and the Transmitting the downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction determined by the positioning server includes:

When the content of the first message is the first transmission direction, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction, and the first transmission direction is the positioning determined by the server according to the first measurement result reported by the terminal, where the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal in the first resource set;

When the content of the first message is the index of the second downlink positioning reference signal resource, transmit the second downlink positioning reference signal resource corresponding to the index to the terminal, the second downlink positioning reference signal resource determining, for the positioning server, a downlink positioning reference signal resource to be transmitted to the terminal from a second resource set according to the first measurement result reported by the terminal and the first QCL relationship, where the first QCL relationship is the first resource a QCL relationship between the concentrated downlink positioning reference signal resources and the downlink positioning reference signal resources in the second resource set, where the transmission direction of the second downlink positioning reference signal resources is the same as the first transmission direction;

When the content of the first message is the second QCL relationship, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the second QCL relationship, where the second QCL relationship is the second QCL relationship A QCL relationship between the first downlink positioning reference signal resource and the first downlink positioning reference signal resource configured by the positioning server for the downlink positioning reference signal resource in the second resource set according to the first transmission direction;

When the content of the first message is the first indication message, adjusting the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction and transmitting to the terminal.
The method according to claim 9, wherein the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement The result includes the downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the second resource set received by the terminal, and the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.
The method according to claim 8, wherein the transmitting the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction determined by the positioning server comprises:

transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first message and the transmission period of the second resource set; or,

After the period after the terminal reports the first measurement result reaches a preset period, transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first message; or,

After the positioning server or the base station sends the feedback information based on the first measurement result reported by the terminal to the terminal for a preset period, transmit the second set of resources to the terminal according to the first message The downlink positioning reference signal resources; wherein, the preset duration is predefined by the system, or the duration included in the signaling sent by the positioning server.
The method of claim 7, further comprising:

Receive a first request sent by the positioning server, where the first request is used to request to obtain downlink positioning reference signal angle information corresponding to the downlink positioning reference signal resource;

reporting the angle information to the positioning server, where the angle information is used by the positioning server to locate the position of the terminal according to the angle information and the second measurement result.
A positioning method, characterized in that it is applied to a base station, the method comprising:

Transmitting downlink positioning reference signal resources in the first resource set to the terminal, or transmitting downlink positioning reference signal resources in the first resource set and the second resource set to the terminal, the first resource set and the second resource set including multiple downlink positioning reference signals Positioning reference signal resources;

Receiving a first measurement result sent by the positioning server; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal in the first resource set;

determining a first transmission direction of downlink positioning reference signal resources in the second resource set according to the first measurement result;

transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction, the downlink positioning reference signal resource is used for the terminal to measure the received downlink positioning reference signal resource, and obtain The second measurement result is used for the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.
The method according to claim 13, wherein the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement The result includes the downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the second resource set received by the terminal, and the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.
The method according to claim 14, wherein the determining the first transmission direction of the downlink positioning reference signal resource in the second resource set according to the first measurement result comprises:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource determined according to reference signal power in the first measurement result;

determining the transmission direction of the first downlink positioning reference signal resource as the first transmission direction of the downlink positioning reference signal resource in the second resource set.
The method according to claim 13, wherein the transmitting the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction comprises:

transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction; or,

transmit a second downlink positioning reference signal resource to the terminal; wherein, the second downlink positioning reference signal resource is the downlink determined from the second resource set and transmitted to the terminal according to the first measurement result and the first QCL relationship positioning reference signal resources, the first QCL relationship is the QCL relationship between the downlink positioning reference signal resources in the first resource set and the downlink positioning reference signal resources in the second resource set, and the second downlink positioning reference signal resource The transmission direction of the signal resource is the same as the first transmission direction; or,

Adjusting the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction and transmitting to the terminal.
The method according to claim 13, wherein the transmitting the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction comprises:

transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction and the transmission period of the second resource set; or,

After the time period after the terminal reports the first measurement result reaches a preset time period, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction; or,

After the positioning server or the base station sends the feedback information based on the first measurement result reported by the terminal to the terminal for a preset period, transmit the second resource to the terminal according to the first transmission direction Concentrated downlink positioning reference signal resources; wherein, the preset duration is predefined by the system, or the duration included in the signaling sent by the positioning server.
The method of claim 13, further comprising:

Receive a first request sent by the positioning server, where the first request is used to request to obtain downlink positioning reference signal angle information corresponding to the downlink positioning reference signal resource;

reporting the angle information to the positioning server, where the angle information is used by the positioning server to locate the position of the terminal according to the angle information and the second measurement result.
A positioning method, characterized in that it is applied to a terminal, and the method includes:

receiving a first resource set and a second resource set transmitted by a base station, where the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

measuring the downlink positioning reference signal resources in the first resource set to obtain a first measurement result;

According to the first measurement result, measure the downlink positioning reference signal resources in the second resource set to obtain a second measurement result;

Reporting the first measurement result and the second measurement result to a positioning server, where the first measurement result and the second measurement result are used by the positioning server to locate the position of the terminal.
The method according to claim 19, wherein the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement The result includes downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the second resource set, and the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.
The method according to claim 19, wherein the measuring the downlink positioning reference signal resource in the second resource set according to the first measurement result to obtain the second measurement result comprises:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource with the largest reference signal power in the first resource set;

According to the first QCL relationship between the downlink positioning reference signal resource in the first resource set and the downlink positioning reference signal resource in the second resource set, determine the first downlink positioning reference signal resource corresponding to the first downlink positioning reference signal resource from the second resource set. 2. Downlink positioning reference signal resources;

Performing measurement on the second downlink positioning reference signal resource to obtain the second measurement result.
A positioning device is characterized in that it is applied to a positioning server, and the device includes:

A processing module, configured to configure a first resource set and a second resource set for the terminal; the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

A communication module, configured to receive a first measurement result reported by the terminal; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal resources in the first resource set transmitted by the base station;

The processing module is further configured to determine a first transmission direction of downlink positioning reference signal resources in the second resource set according to the first measurement result; or, the communication module is further configured to send to the base station the first measurement result, where the first measurement result is used by the base station to determine the first transmission direction;

The communication module is further configured to receive a second measurement result reported by the terminal, and the processing module is configured to locate the position of the terminal according to the second measurement result; wherein the second measurement result is the The terminal measures the received downlink positioning reference signal resources in the second resource set transmitted by the base station according to the first transmission direction.
The apparatus according to claim 22, wherein the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement The result includes the downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the second resource set received by the terminal, and the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.
The device according to claim 23, wherein the processing module is configured to:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource determined according to reference signal power in the first measurement result;

determining the transmission direction of the first downlink positioning reference signal resource as the first transmission direction of the downlink positioning reference signal resource in the second resource set.
The device according to claim 22 or 24, wherein the communication module is also used for:

sending a first message to the base station, or sending the first message to the base station and the terminal, where the first message is used to instruct the base station to transmit the downlink in the second resource set based on the first transmission direction The positioning reference signal resources, and the first message is used to notify the terminal that the base station transmits the downlink positioning reference signal resources in the second resource set in a first transmission direction.
The apparatus of claim 25, wherein the first message comprises:

said first direction of transmission; or,

The second quasi-co-location QCL relationship; wherein, the second QCL relationship is the configuration of the positioning server for the downlink positioning reference signal resource in the second resource set according to the first transmission direction and the first downlink the QCL relationship of the positioning reference signal resource; or,

A first indication message, where the first indication message is used to instruct the base station to adjust the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction; or,

The index of the second downlink positioning reference signal resource; wherein, the second downlink positioning reference signal resource is determined by the positioning server to transmit from the second resource set according to the first measurement result and the first QCL relationship to the The downlink positioning reference signal resources of the terminal, the first QCL relationship is the QCL relationship between the downlink positioning reference signal resources in the first resource set and the downlink positioning reference signal resources in the second resource set, and the second The transmission direction of the downlink positioning reference signal resource is the same as the first transmission direction.
The device according to claim 22, wherein the processing module is configured to:

Obtain downlink positioning reference signal angle information corresponding to the downlink positioning reference signal resource reported by the base station;

Positioning the position of the terminal according to the second measurement result and the angle information of the downlink positioning reference signal.
A positioning device is characterized in that it is applied to a base station, and the device includes:

A communication module, configured to transmit downlink positioning reference signal resources in the first resource set to the terminal, or transmit downlink positioning reference signal resources in the first resource set and the second resource set to the terminal, the first resource set and the second resource Centrally including multiple downlink positioning reference signal resources;

The communication module is configured to transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction determined by the positioning server, and the downlink positioning reference signal resources are used by the terminal for the received The downlink positioning reference signal resource is measured to obtain a second measurement result, which is used by the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.
The device according to claim 28, wherein the communication module is configured to:

receiving a first message sent by the positioning server; wherein the first message is used to instruct the base station to transmit the downlink positioning reference signal resources in the second resource set based on the first transmission direction.
The device according to claim 29, wherein the first message includes one of the first transmission direction, the index of the second downlink positioning reference signal resource, the second QCL relationship, or the first indication message, and the Communication module communication for:

When the content of the first message is the first transmission direction, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction, and the first transmission direction is the positioning determined by the server according to the first measurement result reported by the terminal, where the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal in the first resource set;

When the content of the first message is the index of the second downlink positioning reference signal resource, transmit the second downlink positioning reference signal resource corresponding to the index to the terminal, the second downlink positioning reference signal resource determining, for the positioning server, a downlink positioning reference signal resource to be transmitted to the terminal from a second resource set according to the first measurement result reported by the terminal and the first QCL relationship, where the first QCL relationship is the first resource a QCL relationship between the concentrated downlink positioning reference signal resources and the downlink positioning reference signal resources in the second resource set, where the transmission direction of the second downlink positioning reference signal resources is the same as the first transmission direction;

When the content of the first message is the second QCL relationship, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the second QCL relationship, where the second QCL relationship is the second QCL relationship A QCL relationship between the first downlink positioning reference signal resource and the first downlink positioning reference signal resource configured by the positioning server for the downlink positioning reference signal resource in the second resource set according to the first transmission direction;

When the content of the first message is the first indication message, adjusting the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction and transmitting to the terminal.
The apparatus according to claim 30, wherein the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement The result includes the downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the second resource set received by the terminal, and the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.
The device according to claim 29, wherein the communication module is configured to:

transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first message and the transmission period of the second resource set; or,

After the period after the terminal reports the first measurement result reaches a preset period, transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first message; or,

After the positioning server or the base station sends the feedback information based on the first measurement result reported by the terminal to the terminal for a preset period, transmit the second set of resources to the terminal according to the first message The downlink positioning reference signal resources; wherein, the preset duration is predefined by the system, or the duration included in the signaling sent by the positioning server.
The device according to claim 28, wherein the communication module is also used for:

Receive a first request sent by the positioning server, where the first request is used to request to obtain downlink positioning reference signal angle information corresponding to the downlink positioning reference signal resource;

reporting the angle information to the positioning server, where the angle information is used by the positioning server to locate the position of the terminal according to the angle information and the second measurement result.
A positioning device is characterized in that it is applied to a base station, and the device includes:

A communication module, configured to transmit downlink positioning reference signal resources in the first resource set to the terminal, or transmit downlink positioning reference signal resources in the first resource set and the second resource set to the terminal, the first resource set and the second resource Centrally including multiple downlink positioning reference signal resources;

The communication module is further configured to receive a first measurement result sent by the positioning server; wherein the first measurement result is a result obtained by the terminal measuring the downlink positioning reference signal in the first resource set;

A processing module, configured to determine a first transmission direction of downlink positioning reference signal resources in the second resource set according to the first measurement result;

The processing module is further configured to transmit downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction, and the downlink positioning reference signal resources are used for downlink positioning reference signal resources received by the terminal. The positioning reference signal resource is measured to obtain a second measurement result, and is used for the positioning server to locate the position of the terminal based on the second measurement result reported by the terminal.
The apparatus according to claim 34, wherein the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement The result includes the downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the second resource set received by the terminal, and the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.
The device according to claim 34, wherein the processing module is configured to:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource determined according to reference signal power in the first measurement result;

determining the transmission direction of the first downlink positioning reference signal resource as the first transmission direction of the downlink positioning reference signal resource in the second resource set.
The device according to claim 34, wherein the communication module is used for:

transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction; or,

transmit a second downlink positioning reference signal resource to the terminal; wherein, the second downlink positioning reference signal resource is the downlink determined from the second resource set and transmitted to the terminal according to the first measurement result and the first QCL relationship positioning reference signal resources, the first QCL relationship is the QCL relationship between the downlink positioning reference signal resources in the first resource set and the downlink positioning reference signal resources in the second resource set, and the second downlink positioning reference signal resource The transmission direction of the signal resource is the same as the first transmission direction; or,

Adjusting the transmission direction of the downlink positioning reference signal resources in the second resource set to the first transmission direction and transmitting to the terminal.
The device according to claim 34, wherein the communication module is used for:

transmit the downlink positioning reference signal resources in the second resource set to the terminal according to the first transmission direction and the transmission period of the second resource set; or,

After the time period after the terminal reports the first measurement result reaches a preset time period, transmit the downlink positioning reference signal resource in the second resource set to the terminal according to the first transmission direction; or,

After the positioning server or the base station sends the feedback information based on the first measurement result reported by the terminal to the terminal for a preset period, transmit the second resource to the terminal according to the first transmission direction Concentrated downlink positioning reference signal resources; wherein, the preset duration is predefined by the system, or the duration included in the signaling sent by the positioning server.
The device according to claim 34, wherein the communication module is also used for

Receive a first request sent by the positioning server, where the first request is used to request to obtain downlink positioning reference signal angle information corresponding to the downlink positioning reference signal resource;

reporting the angle information to the positioning server, where the angle information is used by the positioning server to locate the position of the terminal according to the angle information and the second measurement result.
A positioning device is characterized in that it is applied to a terminal, and the device includes:

A communication module, configured to receive a first resource set and a second resource set transmitted by a base station, where the first resource set and the second resource set include a plurality of downlink positioning reference signal resources;

A processing module, configured to measure the downlink positioning reference signal resources in the first resource set to obtain a first measurement result;

The processing module is further configured to measure the downlink positioning reference signal resources in the second resource set according to the first measurement result to obtain a second measurement result;

The communication module is further configured to report the first measurement result and the second measurement result to a positioning server, and the first measurement result and the second measurement result are used by the positioning server to determine the position of the terminal to locate.
The apparatus according to claim 40, wherein the first measurement result includes the reference signal power of the downlink positioning reference signal resource in the first resource set and the index of the downlink positioning reference signal resource, and the second measurement The result includes downlink positioning reference signal resource information and the index of the downlink positioning reference signal resource in the second resource set, and the downlink positioning reference signal resource information includes: downlink positioning reference signal time difference or downlink positioning reference signal power.
The device according to claim 40, wherein the processing module is configured to:

Determine a first downlink positioning reference signal resource according to the first measurement result, where the first downlink positioning reference signal resource is a downlink positioning reference signal resource with the largest reference signal power in the first resource set;

According to the first QCL relationship between the downlink positioning reference signal resource in the first resource set and the downlink positioning reference signal resource in the second resource set, determine the first downlink positioning reference signal resource corresponding to the first downlink positioning reference signal resource from the second resource set. 2. Downlink positioning reference signal resources;

Performing measurement on the second downlink positioning reference signal resource to obtain the second measurement result.
A positioning server, characterized in that it includes: a processor, a memory, and a communication interface; wherein,

The communication interface is used to receive and send data and/or messages under the control of the processor;

The memory is used to store program instructions;

The processor is configured to call the program instructions stored in the memory, and execute the steps included in the method according to any one of claims 1-6 according to the obtained program instructions.
A base station, characterized in that it includes: a processor, a memory, and a communication interface; wherein,

The communication interface is used to receive and send data and/or messages under the control of the processor;

The memory is used to store program instructions;

The processor is configured to call the program instructions stored in the memory, and execute the steps included in the method according to any one of claims 7-12 or 13-18 according to the obtained program instructions.
A terminal, characterized in that it includes: a processor, a memory, and a communication interface; wherein,

The communication interface is used to receive and send data and/or messages under the control of the processor;

The memory is used to store program instructions;

The processor is configured to call the program instructions stored in the memory, and execute the steps included in the method according to any one of claims 19-21 according to the obtained program instructions.
A computer-readable storage medium, characterized in that, the computer-readable storage medium stores a computer program, the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the following: The method described in any one of 1-19.