WO2022161503A1

WO2022161503A1 - Terminal positioning method and apparatus, and device, storage medium and program product

Info

Publication number: WO2022161503A1
Application number: PCT/CN2022/075393
Authority: WO
Inventors: 赵铮; 任晓涛; 任斌; 达人
Original assignee: 大唐移动通信设备有限公司
Priority date: 2021-02-01
Filing date: 2022-02-07
Publication date: 2022-08-04
Also published as: CN114845237A

Abstract

Provided are a terminal positioning method and apparatus, and a device, a storage medium and a program product. The method comprises: a first terminal determining a target positioning reference signal; the first terminal sending the target positioning reference signal to a second terminal by means of a sidelink; the second terminal receiving the target positioning reference signal that is sent by the first terminal by means of the sidelink; and the second terminal determining a relative distance between the second terminal and the first terminal according to the target positioning reference signal. Therefore, a positioning delay of a terminal is reduced.

Description

Terminal positioning method, device, equipment, storage medium and program product

This application claims the priority of the Chinese patent application filed on February 1, 2021 with the application number 202110137466.6 and the application name "Location method, device, equipment, storage medium and program product of terminal", the entire content of which is Incorporated herein by reference.

technical field

The present application relates to the field of communication technologies, and in particular, to a terminal positioning method, apparatus, device, storage medium and program product.

Background technique

In the 3rd Generation Partnership Project (3GPP), various positioning methods based on radio access technology (RAT-dependent) are defined, the basic principle of which is to use multiple base stations to locate a terminal. For example, in the Observed Time Difference of Arrival (OTDOA) positioning method, multiple base stations send positioning reference signals (Positioning reference signals, PRS) to the terminal, the terminal detects the arrival time difference of the PRS sent by the adjacent base stations, The detected time difference of arrival is sent to the positioning server, and the positioning server performs positioning calculation according to the position of the base station and the time difference of arrival fed back by the terminal to determine the position of the terminal.

In the existing technical solution, the positioning of the terminal depends on the positions of multiple base stations and the measurement of the PRS of the base stations. If the relative position between two terminals is to be determined, the positioning delay of this solution is relatively large.

SUMMARY OF THE INVENTION

The present application provides a terminal positioning method, apparatus, device, storage medium and program product, which reduce the terminal positioning delay.

In a first aspect, the present application provides a method for locating a terminal, including:

The first terminal determines the target positioning reference signal;

The first terminal sends the target positioning reference signal to the second terminal through the direct link, where the target positioning reference signal is used to determine the relative distance between the second terminal and the first terminal.

In the method, the first terminal directly sends a positioning reference signal to the second terminal by using the direct link, so that the second terminal can determine the relative distance between the second terminal and the first terminal according to the positioning reference signal, compared with The prior art relies on the method for locating the terminal by the base station, the locating process is simpler and the delay is smaller.

In a feasible implementation manner, the first terminal determines the target positioning reference signal, including:

obtaining, by the first terminal, configuration information of a positioning reference signal, where the configuration information of the positioning reference signal is used to indicate a positioning reference signal resource pool;

The target positioning reference signal is determined according to the configuration information of the positioning reference signal. Therefore, the second terminal can be made to detect the limited positioning reference signal, and the detection complexity can be reduced.

In a feasible implementation manner, the first terminal acquires the configuration information of the positioning reference signal, including:

sending, by the first terminal, location information and/or direction information to the network device;

The configuration information of the positioning reference signal determined by the network device according to the location information and/or the direction information is received.

In a feasible implementation manner, the location information includes area information to which the first terminal belongs.

The first terminal receives the configuration information of the positioning reference signal broadcast by the network device, and/or the first terminal obtains the configuration information of the preconfigured positioning reference signal.

In a feasible implementation manner, the determining the target positioning reference signal according to the configuration information of the positioning reference signal includes:

The first terminal selects and reports a target positioning reference signal from the positioning reference signal resource pool.

In a feasible implementation manner, the first terminal selects and reports the target positioning reference signal from the positioning reference signal resource pool, including:

selecting, by the first terminal, a positioning reference signal from the positioning reference signal resource pool;

The first terminal reports the selected positioning reference signal to the network device, and if receiving confirmation information returned by the network device, determines the selected positioning reference signal as the target positioning reference signal, and the confirmation information is used to indicate The positioning reference signal selected by the first terminal is available. Therefore, collision of positioning reference signal resources is avoided.

In a feasible implementation, the method further includes:

establishing a direct link radio resource control connection between the first terminal and the second terminal;

The first terminal sends positioning measurement information to the second terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, and the positioning reference signal to be measured includes the target positioning reference signal.

In a feasible implementation manner, the positioning measurement information includes:

configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the first terminal.

The first terminal performs positioning reference signal detection, and determines the target positioning reference signal according to the detected positioning reference signal.

In a feasible implementation manner, the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal. Therefore, collision of positioning reference signal resources is avoided.

The first terminal determines the target positioning reference signal according to a preconfigured positioning reference signal resource pool.

In a second aspect, the present application provides a method for locating a terminal, including:

The second terminal receives the target positioning reference signal sent by the first terminal through the direct link;

The relative distance between the second terminal and the first terminal is determined according to the target positioning reference signal.

In the method, the second terminal receives the positioning reference signal sent by the first terminal using the direct link, and determines the relative distance between the second terminal and the first terminal according to the positioning reference signal, which is compared with the prior art relying on For the method in which the base station locates the terminal, the positioning process is simpler and the delay is smaller.

In a feasible implementation manner, the second terminal receives the target positioning reference signal sent by the first terminal through the direct link, including:

obtaining, by the second terminal, configuration information of a positioning reference signal to be measured, and the target positioning reference signal is any one of the positioning reference signals to be measured;

The target positioning reference signal is received according to the configuration information of the target positioning reference signal. Therefore, the second terminal can detect the limited positioning reference signal, and the detection complexity is reduced.

In a feasible implementation manner, the second terminal acquires the configuration information of the positioning reference signal to be measured, including:

sending, by the second terminal, location information and/or direction information to the network device;

The configuration information of the positioning reference signal to be measured determined by the network device according to the location information and/or the direction information is received.

In a feasible implementation manner, the location information includes area information to which the second terminal belongs.

The second terminal receives the configuration information of the positioning reference signal to be measured broadcast by the network device.

The second terminal acquires the configuration information of the preconfigured positioning reference signal to be measured.

In a feasible implementation, the method further includes:

establishing, by the second terminal, a radio resource control connection of a direct link with the first terminal;

The second terminal receives the positioning measurement information sent by the first terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, the positioning reference signal to be measured Including the target positioning reference signal.

In a feasible implementation, the method further includes:

The second terminal reports the relative distance between the second terminal and the first terminal to the network device.

In a third aspect, the present application provides a method for locating a terminal, including:

The network device receives the location information and/or direction information sent by the terminal;

The configuration information of the positioning reference signal of the direct link is sent to the terminal according to the location information and/or the direction information.

In a feasible implementation, the method further includes:

receiving, by the network device, a positioning reference signal selected by the terminal reported by the terminal;

Sending confirmation information to the terminal, where the confirmation information is used to indicate that the positioning reference signal selected by the terminal is available.

In a fourth aspect, the present application provides a positioning device for a terminal, including:

a determining unit for determining a target positioning reference signal;

The sending unit is configured to send the target positioning reference signal to the second terminal through the direct link, where the target positioning reference signal is used to determine the relative distance between the second terminal and the positioning device of the terminal.

In a feasible implementation manner, the determining unit is used for:

obtaining configuration information of a positioning reference signal, where the configuration information of the positioning reference signal is used to indicate a positioning reference signal resource pool;

The target positioning reference signal is determined according to the configuration information of the positioning reference signal.

In a feasible implementation manner, the determining unit is used for:

Send location and/or direction information to network devices;

In a feasible implementation manner, the location information includes area information to which the positioning device of the terminal belongs.

In a feasible implementation manner, the determining unit is used for:

Receive the configuration information of the positioning reference signal broadcast by the network device, and/or obtain the configuration information of the preconfigured positioning reference signal.

In a feasible implementation manner, the determining unit is used for:

A target positioning reference signal is selected from the positioning reference signal resource pool.

In a feasible implementation manner, the determining unit is used for:

selecting a positioning reference signal from the positioning reference signal resource pool;

Reporting the selected positioning reference signal to the network device, and if the confirmation information returned by the network device is received, the selected positioning reference signal is determined as the target positioning reference signal, and the confirmation information is used to indicate the positioning of the terminal. Device-selected positioning reference signals are available.

In a feasible implementation manner, the positioning device of the terminal further includes:

a connection unit, configured to establish a direct link radio resource control connection with the second terminal;

The sending unit is further configured to send positioning measurement information to the second terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, the positioning to be measured The reference signal includes the target positioning reference signal.

The configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus of the terminal.

In a feasible implementation manner, the determining unit is used for:

The positioning reference signal detection is performed, and the target positioning reference signal is determined according to the detected positioning reference signal.

In a feasible implementation manner, the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal.

In a feasible implementation manner, the determining unit is used for:

The target positioning reference signal is determined according to a preconfigured positioning reference signal resource pool.

In a fifth aspect, the present application provides a positioning device for a terminal, including:

a receiving unit, configured to receive the target positioning reference signal sent by the first terminal through the direct link;

and a determining unit, configured to determine the relative distance between the positioning device of the terminal and the first terminal according to the target positioning reference signal.

In a feasible implementation manner, the receiving unit is used for:

obtaining configuration information of a positioning reference signal to be measured, where the target positioning reference signal is any one of the positioning reference signals to be measured;

The target positioning reference signal is received according to the configuration information of the target positioning reference signal.

In a feasible implementation manner, the receiving unit is used for:

Send location and/or direction information to network devices;

In a feasible implementation manner, the receiving unit is used for:

Receive the configuration information of the positioning reference signal to be measured broadcast by the network device.

In a feasible implementation manner, the receiving unit is used for:

Obtain the configuration information of the preconfigured positioning reference signal to be measured.

In a feasible implementation manner, the positioning device of the terminal includes:

a connection unit, configured to establish a direct link radio resource control connection with the first terminal;

The receiving unit is further configured to receive the positioning measurement information sent by the first terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to instruct the positioning device of the terminal to measure the positioning reference signal to be measured , the positioning reference signal to be measured includes the target positioning reference signal.

A sending unit, configured to report the relative distance between the positioning apparatus of the terminal and the first terminal to the network device.

In a sixth aspect, the present application provides a positioning device for a terminal, including:

a receiving unit, configured to receive the location information and/or direction information sent by the terminal;

A sending unit, configured to send the configuration information of the positioning reference signal of the direct link to the terminal according to the position information and/or the direction information.

In one possible implementation,

The receiving unit is further configured to receive a positioning reference signal selected by the terminal reported by the terminal;

The sending unit is further configured to send confirmation information to the terminal, where the confirmation information is used to indicate that the positioning reference signal selected by the terminal is available.

In a seventh aspect, the present application provides a terminal, including a memory and a processor, and the memory and the processor are connected;

the memory is used to store computer programs;

The processor is configured to implement the method according to any one of the first aspect or the second aspect when the computer program is executed.

In an eighth aspect, the present application provides a network device, including a memory and a processor, and the memory and the processor are connected;

the memory is used to store computer programs;

The processor is configured to implement the method of any one of the third aspects when the computer program is executed.

In a ninth aspect, the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, any one of the above-mentioned first aspect, second aspect or third aspect is realized. the method described.

In a tenth aspect, the present application provides a program product, including a computer program, which, when executed by a processor, implements the method according to any one of the first aspect, the second aspect or the third aspect.

Embodiments of the present application provide a method, device, device, storage medium, and program product for locating a terminal. Using a direct link between a first terminal and a second terminal, the first terminal sends a positioning reference to the second terminal through the direct link. signal, so that the second terminal can directly determine the relative distance between the second terminal and the first terminal according to the positioning reference signal. Positioning method The positioning process is simple and the delay is small.

It should be understood that the content described in the above summary section is not intended to limit the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become apparent from the following description.

Description of drawings

In order to illustrate the technical solutions in the present application or the prior art more clearly, the following briefly introduces the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are the For some embodiments of the invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is an application scenario diagram of a method for locating a terminal provided by an embodiment of the present application;

FIG. 2 is a schematic flowchart of a method for locating a terminal according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a positioning apparatus for a terminal according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a positioning apparatus for a terminal according to another embodiment of the present application;

FIG. 5 is a schematic structural diagram of a positioning apparatus for a terminal according to another embodiment of the present application;

FIG. 6 is a schematic structural diagram of a terminal provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed ways

In this application, the term "and/or" describes the relationship between related objects, and means that there can be three relationships, for example, A and/or B, which can mean that A exists alone, A and B exist simultaneously, and B exists alone. a situation. The character "/" generally indicates that the associated objects are an "or" relationship. In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The embodiments of the present application provide a terminal positioning method, apparatus, device, storage medium and program product, so as to realize terminal positioning and reduce positioning delay. The method and the device are conceived based on the same application. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated here.

The technical solutions provided in the embodiments of the present application can be applied to various systems, especially 5G systems. For example, the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (Evloved Packet System, EPS), a 5G system (5GS), and the like.

The terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may be different. For example, in the 5G system, the terminal device may be called user equipment (User Equipment, UE). Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a radio access network (Radio Access Network, RAN). "telephone) and computers with mobile terminal equipment, eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistants), PDA) and other devices. Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal, access terminal, user terminal, user agent, user device. The terminal device may also be a terminal in an intelligent connected vehicle technology (Vehicle to Everything, V2X) system, such as a vehicle-mounted terminal, etc., which is not limited in this embodiment of the present application.

The network device involved in the embodiments of the present application may be a base station, and the base station may include a plurality of cells providing services for the terminal. Depending on the specific application, the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet. Protocol (IP) communication network. The network devices may also coordinate attribute management for the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present application. In some network structures, a network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated. The network device involved in the embodiment of the present application may also be a core network device.

Currently, various RAT-dependent positioning methods are defined in 3GPP, the basic principle of which is to use multiple base stations to locate a terminal. For example, multiple base stations send PRS to the terminal, the terminal detects the arrival time difference of the PRS sent by the adjacent base stations, and sends the detected arrival time difference to the positioning server. Determine the location of the terminal. For example, the location server may be a base station or a location management function (Location Management Function, LMF).

For scenarios where the relative positional relationship between terminals needs to be determined, for example, in a V2X scenario, the relative positional relationship between vehicles needs to be determined. Based on the above positioning method, the network device needs to calculate the position of each terminal device separately, and then further Determine the relative position between the two terminals, and then notify each terminal of the relative position separately. With this method, the positioning process is complicated and the delay is large.

An embodiment of the present application provides a method for locating a terminal, which implements direct positioning between two terminals based on a straight-through link (Sidelink, SL) between terminals. FIG. 1 is an application scenario diagram of a method for locating a terminal provided by an embodiment of the present application. As shown in FIG. 1 , in addition to communicating with the base station 10, the first terminal 11 and the second terminal 12 can also use a direct link for communication between the first terminal 11 and the second terminal 12. In this way, the first terminal 11 and the second terminal 12 Positioning may be implemented between a terminal 11 and a second terminal 12 by transmitting a direct link positioning reference signal (SL PRS).

FIG. 2 is a schematic flowchart of a method for locating a terminal according to an embodiment of the present application. As shown in Figure 2, the method includes:

S201. The first terminal determines a target positioning reference signal.

S202. The first terminal sends a target positioning reference signal to the second terminal through the direct link.

S203. The second terminal determines the relative distance between the second terminal and the first terminal according to the target positioning reference signal.

In this embodiment, the first terminal is a sending terminal, and the second terminal is a receiving terminal. In order to realize the positioning of the first terminal by the second terminal, the first terminal sends a target positioning reference signal to the second terminal through the direct link. The direct link is a wireless path established between the first terminal and the second terminal. The target positioning reference signal is determined by the first terminal, and the method for determining the target positioning reference signal by the first terminal is not limited in this embodiment of the present application.

The second terminal receives the target positioning reference signal sent by the first terminal through the direct link, and determines the relative distance between the second terminal and the first terminal according to the target positioning reference signal, that is, the second terminal determines the relative distance between the second terminal and the first terminal according to the received target positioning reference signal. to locate. It should be noted that the method for the second terminal to perform positioning according to the target positioning reference signal may be the DownLoad-Time Difference of Arrival (DL-TDOA) method, the Round Trip Time (RTT) method, and the angle of arrival ( Angle-of-Arrival, AOA) and other methods, which are not limited in the embodiments of the present application.

The first terminal directly sends the positioning reference signal to the second terminal, so that the second terminal can directly determine the relative distance between the second terminal and the first terminal according to the positioning reference signal. The method for positioning the terminal, the positioning method provided by the embodiment of the present application, has a simple positioning process and a small delay.

On the other hand, for a scenario where the terminal is not within the coverage of the base station, the existing method cannot be used to locate the terminal. However, since the method of the embodiment of the present application does not depend on the base station, the positioning can be realized through the direct link between the terminals. , while saving resource overhead.

In addition, when the distance between the two terminals is relatively close, for example, in the V2X scenario, the distance between the vehicles is relatively short, and there is often a (Line of Sight, LOS) path between the two terminals. The channel quality of the direct link is better, and the channel quality of the direct link will be better than the channel quality between the terminal and the base station. Therefore, the accuracy of the positioning result based on the positioning reference signal of the direct link is also higher.

Still taking the V2X scenario as an example, when positioning is performed through the direct link between the vehicle and the vehicle or between the vehicle and the user terminal, the relative position between the vehicle or the user terminal will change continuously due to the movement of the vehicle or the user. In order to avoid collision, the vehicle needs to send a positioning reference signal so that other vehicles can locate the own vehicle, and it also needs to be able to measure the positioning reference signal of the adjacent vehicles to determine the relative position of the surrounding vehicles or the user and the own vehicle. Therefore, the vehicle-mounted terminal as the sender needs to determine the target positioning reference signal to be sent, while the vehicle-mounted terminal as the receiver needs to know which positioning reference signals to measure for measurement, and perform positioning according to the measured positioning reference signals.

When a terminal is located through a direct link, it can be implemented in two ways. One is a Radio Resource Control (RRC) connection that is not based on a direct link. For example, no direct link RRC connection is established between the terminals. , or, the RRC connection of the direct link is established between the terminals, but the positioning is not based on the RRC signaling interaction of the direct link; the other is that the RRC connection of the direct link is established between the terminals, and the positioning is based on the direct link. In the following two implementation manners, how the first terminal determines the target positioning reference signal and how the second terminal measures the positioning reference signal will be described separately below.

method one

In the implementation manner of positioning not based on the RRC connection of the direct link, the first terminal determines the target positioning reference signal, including:

The first terminal acquires the configuration information of the positioning reference signal, where the configuration information of the positioning reference signal is used to indicate the positioning reference signal resource pool; and the target positioning reference signal is determined according to the configuration information of the positioning reference signal.

The configuration information of the positioning reference signal may be pre-configured and/or configured by a network device, and the configuration information of the positioning reference signal may indicate the positioning reference signal resource pool to the first terminal by direct indication or indirect indication, or is the range of positioning reference signal resources. Wherein, the indirect indication refers to calculating the positioning reference signal resource pool according to other information. By limiting the positioning reference signal resource pool, the second terminal, that is, the receiving terminal, can detect the limited positioning reference signal, thereby reducing the detection complexity. The configuration information of the positioning reference signal may include one or more of time-frequency resources, sequence resources, antenna resources, and spatial information of the positioning reference signal.

Optionally, the first terminal sends the location information and/or the direction information to the network device, and receives the configuration information of the positioning reference signal determined by the network device according to the location information and/or the direction information.

For example, the location information includes zone (Zone) information to which the first terminal belongs, and the direction information may include synchronization signal and PBCH block (Synchronization Signal and PBCH block, SSB) Index information. The positioning reference signal resource pool may vary according to the area where the terminal is located. For example, the first terminal reports the area to which the first terminal belongs to the network device, and the network device determines a positioning reference signal resource pool corresponding to the area to which the first terminal belongs, and sends the configuration information of the corresponding positioning reference signal to the first terminal, thereby The first terminal may determine the target reference signal to be sent according to the configuration information of the positioning reference signal.

It should be noted that, in order to increase the orthogonality of the positioning reference signals, the positioning reference signals may be multiplexed in different regions, that is, the positioning reference signals included in the positioning reference signal resource pools corresponding to different regions may be the same. The used positioning reference signals and the available positioning reference signals are different in each area. The network device can update the available positioning reference signals in each area according to the area where the terminal is located and the situation of using the positioning reference signals.

Optionally, the first terminal receives the configuration information of the positioning reference signal broadcast by the network device.

The network device may broadcast the configuration information of the positioning reference signals corresponding to different areas to indicate the positioning reference signal resource pools corresponding to the different areas, and the first terminal may determine the positioning reference corresponding to the area to which the first terminal belongs according to the received broadcast information The signal resource pool is used to determine the target positioning reference signal to be sent.

Optionally, the first terminal acquires the configuration information of the preconfigured positioning reference signal. The configuration information of the preconfigured positioning reference signal may be specified in the protocol, and the first terminal may determine the positioning reference signal resource pool according to the specification of the protocol, so as to determine the target positioning reference signal to be sent.

For example, when the first terminal is located outside the coverage area of the network device, the first terminal cannot receive the configuration information of the positioning reference signal sent by the network device. At this time, the first terminal can use the pre-configured configuration information of the positioning reference signal. Determine the target positioning reference signal. It can be understood that, before measuring the positioning reference signal, the second terminal may determine the positioning reference signal to be measured according to the configuration information of the preconfigured positioning reference signal, such as the preconfigured positioning reference signal resource pool.

Optionally, when the first terminal is within the coverage area of the network device, the first terminal may not only send the target positioning reference signal according to the configuration information of the positioning reference signal configured by the network device, but also send the target positioning reference signal according to the configuration of the preconfigured positioning reference signal. information to send the target positioning reference signal.

The positioning reference signal indicated in the configuration information of the preconfigured positioning reference signal may be related to a terminal identity (UE ID). Optionally, the terminal identifier may include a source identifier (Source_ID) and/or a destination identifier (Destination_ID). When sending the positioning reference signal, preconfigured configuration information for sending the positioning reference signal may be determined according to the source identifier. When receiving the positioning reference signal, preconfigured configuration information for receiving the positioning reference signal may be determined according to the destination identifier.

In a specific application, the configuration information of the pre-configured positioning reference signal may be used according to the usage scenario, and the target positioning reference signal to be sent may be determined according to the source identifier or the destination identifier. For example, when there is a central node between the first terminal and the second terminal, the first terminal may determine the target positioning reference signal by using the identity of the central node as the source identity. For another example, in the scenario of automatic parking, the electric pile of the parking space can send the target positioning reference signal according to the identification of the vehicle terminal as the target identification.

Optionally, the positioning reference signal resource pool indicated by the preconfigured positioning reference signal configuration information is different from the positioning reference signal resource pool indicated by the positioning reference signal configuration information configured by the network device. Optionally, the priority of the configuration information of the positioning reference signal configured by the network device is higher than the configuration information of the preconfigured positioning reference signal, when the first terminal accesses the network and receives the configuration information of the positioning reference signal sent by the network device, Then, the first terminal determines the target positioning reference signal to be sent according to the configuration information of the positioning reference signal sent by the network device. When the first terminal cannot receive the configuration information of the positioning reference signal sent by the network device, the first terminal determines the target positioning reference signal to be sent according to the preconfigured configuration information of the positioning reference signal. Optionally, the configuration information of the positioning reference signal configured by the network device and the priority of the configuration information of the pre-configured positioning reference signal may be configured by the network device. That is, the network device specifies that the first terminal adopts the configuration information of the positioning reference signal configured by the configuration network device, or the configuration information of the pre-configured positioning reference signal.

In any of the above examples, after acquiring the configuration information of the positioning reference signal, the first terminal may determine the target positioning reference signal to be sent according to the positioning reference signal resource pool indicated by the configuration information of the positioning reference signal. For example, the first terminal selects a positioning reference signal from the positioning reference signal resource pool, determines it as the target positioning reference signal, and sends it.

For example, when the vehicle is driving on the road, the on-board terminal needs to detect the front and rear vehicles in the same lane, and the positioning reference signal can be bound to the lane, and the on-board terminal sends the positioning reference signal corresponding to the current driving lane to facilitate the detection of other vehicles. When the vehicle needs to be inserted into the side lane, during the insertion process, the vehicle terminal needs to send a positioning reference signal corresponding to the inserted lane and the original driving lane.

Optionally, when the two first terminals select the same target positioning reference signal for transmission, the two first terminals cannot detect each other. In order to solve this problem, the first terminal may randomly select some moments not to send the target. Positioning reference signal, and performing positioning reference signal detection at these moments, since the two first terminals randomly select the same moment of not sending the target positioning reference signal, the probability is low, so it can avoid the inability to measure due to the collision of the target positioning reference signal positioning problem.

Optionally, on the above basis, the moment selected by the first terminal not to send the target positioning reference signal may be related to the identity of the first terminal, thereby further reducing the time selected by the two first terminals not to send the target positioning reference signal to be the same. The probability of the target positioning reference signal resource collision can avoid the problem that the positioning cannot be measured.

Optionally, each terminal may have a number (Zone ID) in the area, and the moment when the first terminal does not send the target positioning reference signal may be related to the Zone ID, which can also reduce the two first. The terminal selects the same probability of not sending the target positioning reference signal, so as to avoid the problem that the positioning cannot be measured due to the collision of the target positioning reference signal resources.

Optionally, the first terminal may detect positioning reference signals of surrounding terminals, and select an undetected positioning reference signal from a positioning reference signal resource pool as a target positioning reference signal, thereby avoiding a collision of positioning reference signal resources.

Optionally, the first terminal can also report the selected target positioning reference signal to the network device, so that the network device can determine the positioning reference signal used by each terminal, and then can update the available positioning reference signal resource pool. Optionally, the first terminal may also send a positioning request to the network device while reporting the target positioning reference signal, so that the network device starts a processing flow related to positioning.

Optionally, the first terminal selects the positioning reference signal from the positioning reference signal resource pool, reports the selected positioning reference signal to the network device, and determines the selected positioning reference signal as the target if it receives the confirmation information returned by the network device. For the positioning reference signal, the confirmation information is used to indicate that the positioning reference signal selected by the first terminal is available.

Since the positioning reference signals selected by different terminals may be the same, in order to avoid collision, the network device may confirm whether the positioning reference signal selected by the first terminal is available, and if available, the network device sends confirmation information to the first terminal. If it is unavailable, the network device may not return confirmation information to the first terminal, or the network device may also send information indicating that the selected target reference signal is unavailable to the first terminal. If the first terminal device does not receive the acknowledgment information after reporting the selected positioning reference signal, it reselects the positioning reference signal until the acknowledgment information is received.

If the two terminals select the positioning reference signal and report the respectively selected positioning reference signal to the network device, and the network device determines that the positioning reference signal selected by the two terminals is the same, the network device may only send confirmation information to one of the terminals, or, No acknowledgment information is sent for either terminal.

The network device may update the positioning reference signal resource pool according to the positioning reference signal reported by the first terminal. Exemplarily, after the first terminal reports the selected positioning reference signal, the network device determines that the positioning reference signal has not been selected by other terminals, so returns confirmation information to the first terminal, and at the same time removes the positioning reference signal from the positioning reference signal resource pool. , and notify other terminals of the new positioning reference signal resource pool, so that other terminals can select available positioning reference signals from it.

In this positioning method based on the RRC connection not based on the through link, the second terminal receives the target positioning reference signal sent by the first terminal through the through link, including:

The second terminal acquires the configuration information of the positioning reference signal to be measured, and the target positioning reference signal is any one of the positioning reference signals to be measured; and receives the target positioning reference signal according to the configuration information of the target positioning reference signal.

In order to perform effective positioning reference signal measurement, the second terminal needs to know which positioning reference signals need to be measured, that is, the second terminal needs to obtain the configuration information of the positioning reference signal of the nearby terminals, and the configuration information of the positioning reference signal can be pre-configured and/or configured by the network device. By limiting the positioning reference signals to be measured, the second terminal can be made to detect the limited positioning reference signals, thereby reducing the detection complexity.

Optionally, the second terminal sends location information and/or direction information to the network device, and receives configuration information of the positioning reference signal to be measured determined by the network device according to the location information and/or direction information. Optionally, the location information of the second terminal includes area information to which the second terminal belongs.

The second terminal reports the region to which the second terminal belongs to the network device, and the network device may determine the positioning reference signal resource pool corresponding to the region to which the second terminal belongs and/or the adjacent regions of the region to which the second terminal belongs as the positioning reference to be measured signal, and send the corresponding configuration information to the second terminal, so that the second terminal can receive the positioning reference signal to be measured according to the configuration information of the positioning reference signal to be measured, which includes the target positioning reference signal sent by the first terminal.

Exemplarily, the second terminal reports the area to which the second terminal belongs to the network device, and the network device uses the positioning reference signal sent by the terminal in the same area as the positioning reference signal to be measured according to the area to which the second terminal belongs, and uses its configuration information as the positioning reference signal to be measured. sent to the second terminal.

The positioning reference signal to be measured sent by the network device to the second terminal may indicate the positioning reference signal to be measured by means of direct indication or indirect indication. For example, the network device sends the complete set of the positioning reference signal resource pool determined according to the area to which the second terminal belongs and the configuration information corresponding to the set of available positioning reference signals to the second terminal, so that the second terminal can use the positioning reference signal resource pool according to the second terminal. and the difference of the set of available positioning reference signals to determine the positioning reference signal to be measured.

Optionally, the second terminal receives the configuration information of the positioning reference signal to be measured broadcast by the network device.

The network device may broadcast the configuration information of the positioning reference signals corresponding to different areas to indicate the positioning reference signal resource pools corresponding to the different areas, and the second terminal may determine the positioning reference corresponding to the area to which the second terminal belongs according to the received broadcast information The signal resource pool is determined as the positioning reference signal to be measured, so as to facilitate the reception measurement.

Optionally, the second terminal acquires the configuration information of the preconfigured positioning reference signal to be measured.

Exemplarily, the configuration information of the pre-configured positioning reference signals may be specified in the protocol, and the second terminal may determine the configuration information of the positioning reference signals to be measured according to the provisions of the protocol, such as the resource pool of the positioning reference signals to be measured, so as to facilitate Perform positioning reference signal reception measurements.

When the second terminal is located outside the coverage area of the network device, the second terminal cannot receive the configuration information of the positioning reference signal to be measured sent by the network device, and the second terminal can use the pre-configured configuration of the positioning reference signal to be measured. information. It can be understood that, before measuring the positioning reference signal, the second terminal may determine the positioning reference signal to be measured according to the configuration information of the preconfigured positioning reference signal, such as the preconfigured positioning reference signal resource pool. In this case, if the first terminal located in the coverage area of the network equipment uses the positioning reference signal resource pool configured by the network equipment to send the target positioning reference signal, the second terminal cannot detect the first terminal. , the second terminal can report information to the network device through other terminals to notify the network device that there are terminals outside the coverage area in the area where the second terminal is located, so that the network device can instruct the first terminal in the coverage area to use the pre-configured positioning reference Signal resource pool to send target positioning reference signals.

Optionally, when the second terminal is within the coverage area of the network device, the second terminal may determine the positioning reference signal to be measured according to the configuration information of the positioning reference signal to be measured configured by the network device, and also according to the preconfigured positioning reference signal to be measured. The positioning reference signal to be measured is obtained by measuring the configuration information of the positioning reference signal.

With reference to the foregoing description of the target positioning reference signal sent by the first terminal, optionally, in order to ensure that the first terminal can be detected by the second terminal within the coverage area of the network device and outside the coverage area, and to ensure that the second terminal can detect For the first terminal within the coverage area of the network device and outside the coverage area, for the first terminal, when the first terminal is within the coverage area of the network device, the first terminal both according to the configuration information of the positioning reference signal configured by the network device. The target positioning reference signal is sent, and the target positioning reference signal is also sent according to the configuration information of the preconfigured positioning reference signal; when the first terminal is outside the coverage area of the network device, the first terminal is based on the preconfigured positioning reference signal configuration information. to send the target positioning reference signal. For the second terminal, when the second terminal is within the coverage area of the network device, the second terminal not only determines the positioning reference signal to be measured according to the configuration information of the positioning reference signal to be measured configured by the network device, but also determines the positioning reference signal to be measured according to the preconfigured positioning reference signal to be measured. The configuration information of the positioning reference signal to be measured is measured to obtain the positioning reference signal to be measured; when the second terminal is outside the coverage area of the network device, the second terminal obtains the positioning reference signal to be measured according to the preconfigured configuration information of the positioning reference signal to be measured .

In combination with the foregoing, the network device instructs the first terminal to use the configuration information of the pre-configured and/or network-configured positioning reference signal to send the target positioning reference signal, and/or the network device instructs the second terminal to use the pre-configured and/or network-configured positioning reference signal. The configuration information of the positioning reference signal is used to receive the target positioning reference signal. It should be noted that during the terminal communication process of the direct link, some first terminals may be within the coverage of the network device, and some first terminals may be outside the coverage of the network device. If the network device instructs the second terminal to Only measure the coverage of the network equipment or the positioning reference signal of the first terminal outside the coverage, the second terminal will measure according to the instructions of the network equipment, if the network equipment has no instructions, the second terminal will measure the coverage and coverage of the network equipment. The positioning reference signals of the first terminal outside the range are all measured.

Method 2

In the implementation manner of positioning based on the RRC connection of the through link, before the first terminal determines the target positioning reference signal, the first terminal establishes the RRC connection of the through link with the second terminal. That is, a synchronization and RRC connection is first established between the first terminal and the second terminal, then the first terminal determines the target positioning reference signal to be sent and sends the target positioning reference signal, and the first terminal sends the The second terminal sends positioning measurement information, where the positioning measurement information is used to indicate to the second terminal a positioning reference signal to be measured, and the positioning reference signal to be measured includes a target positioning reference signal. Correspondingly, the second terminal receives the positioning measurement information sent by the first terminal through the RRC signaling, and receives the target positioning reference signal according to the positioning measurement information.

The configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the first terminal.

The positioning reference signal to be measured may include one or more target positioning reference signals. For example, after determining the target positioning reference signal, the first terminal may only send configuration information related to the target positioning reference signal as positioning measurement information to the second terminal, so that the second terminal may only measure the target positioning reference signal according to the positioning measurement information. For another example, after determining the target positioning reference signal, the first terminal can send the configuration information related to the positioning reference signal resource pool including the target positioning reference signal to the second terminal as positioning measurement information, so that the second terminal can send the configuration information including the target positioning reference signal to the second terminal. The positioning reference signal resource pool of the reference signal is measured as the positioning reference signal to be measured.

Optionally, the positioning measurement information includes: the configuration information of the positioning reference signal to be measured, that is, the configuration information including the target positioning reference signal, and/or, the time advance (Time Advance, TA) for sending the positioning reference signal by the first terminal , the second terminal can determine the time when the first terminal sends the target positioning reference signal according to the timing advance of the first terminal sending the target positioning reference signal, and then can determine the sending and receiving delay of the target positioning reference signal in combination with the time when the target reference signal is received , and then determine the relative distance between the first terminal and the second terminal.

Optionally, the first terminal determines the target positioning reference signal according to a preconfigured positioning reference signal resource pool. For example, the first terminal may determine the positioning reference signal resource pool according to the provisions of the protocol, and determine the target positioning reference signal to be sent from the positioning reference signal resource pool.

Optionally, the first terminal performs positioning reference signal detection, and determines the target positioning reference signal according to the detected positioning reference signal.

The first terminal detects surrounding positioning reference signals, and the positioning reference signals detected by the first terminal are positioning reference signals that have been used by other terminals. Therefore, the first terminal can determine the target positioning reference to be sent according to the used positioning reference signals. Signal.

Optionally, the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal, so as to avoid collision of the positioning reference signals.

In the above implementation manner, after the second terminal determines the relative distance between the second terminal and the first terminal according to the target positioning reference signal, the second terminal may further report the relative distance between the second terminal and the first terminal to the network device .

Optionally, the network device may estimate the location of each terminal according to the measurement result reported by each terminal, and implement multiplexing of positioning reference signals in different areas according to the location information of the terminal.

Optionally, the network device may estimate the location of each terminal according to the measurement results reported by each terminal, and combine the terminals with a relatively short distance according to the location information of the terminals. Alternatively, the network device may estimate the location of the terminal according to the uplink positioning pilot signal sent by the terminal, and combine the terminals with a short distance. Therefore, the network device can send the configuration information of the positioning reference signal to the terminal according to the combination between the terminals.

FIG. 3 is a schematic structural diagram of an apparatus for positioning a terminal according to an embodiment of the present application. The positioning device of the terminal may be the first terminal in the foregoing embodiment or may be integrated in the first terminal. As shown in FIG. 3 , the positioning device 30 of the terminal includes:

a determining unit 301, configured to determine a target positioning reference signal;

The sending unit 302 is configured to send a target positioning reference signal to the second terminal through the direct link, where the target positioning reference signal is used to determine the relative distance between the second terminal and the positioning apparatus 30 of the terminal.

In a feasible implementation manner, the determining unit 301 is used for:

obtaining configuration information of the positioning reference signal, where the configuration information of the positioning reference signal is used to indicate the positioning reference signal resource pool;

In a feasible implementation manner, the determining unit 301 is used for:

Send location and/or direction information to network devices;

In a feasible implementation manner, the location information includes area information to which the positioning device 30 of the terminal belongs.

In a feasible implementation manner, the determining unit 301 is used for:

The target positioning reference signal is selected from the positioning reference signal resource pool.

In a feasible implementation manner, the determining unit 301 is used for:

select a positioning reference signal from the positioning reference signal resource pool;

Reporting the selected positioning reference signal to the network device, and if the confirmation information returned by the network device is received, the selected positioning reference signal is determined as the target positioning reference signal, and the confirmation information is used to indicate that the positioning reference signal selected by the positioning device 30 of the terminal is available .

In a feasible implementation manner, the positioning apparatus 30 of the terminal further includes:

a connecting unit 303, configured to establish a radio resource control connection of a direct link with the second terminal;

The sending unit 302 is further configured to send positioning measurement information to the second terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, and the positioning reference signal to be measured includes the target positioning reference signal.

The configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus 30 of the terminal.

In a feasible implementation manner, the determining unit 301 is used for:

The positioning reference signal is detected, and the target positioning reference signal is determined according to the detected positioning reference signal.

In a feasible implementation manner, the determining unit 301 is used for:

The target positioning reference signal is determined according to the preconfigured positioning reference signal resource pool.

FIG. 4 is a schematic structural diagram of a positioning apparatus for a terminal according to another embodiment of the present application. The positioning device of the terminal may be the second terminal in the foregoing embodiment or may be integrated in the second terminal. As shown in FIG. 4 , the positioning device 40 of the terminal includes:

a receiving unit 401, configured to receive a target positioning reference signal sent by a first terminal through a direct link;

The determining unit 402 is configured to determine the relative distance between the second terminal and the first terminal according to the target positioning reference signal.

In a feasible implementation manner, the receiving unit 401 is used for:

Obtain configuration information of the positioning reference signal to be measured, and the target positioning reference signal is any one of the positioning reference signals to be measured;

In a feasible implementation manner, the receiving unit 401 is used for:

Send location and/or direction information to network devices;

In a feasible implementation manner, the receiving unit 401 is used for:

In a feasible implementation manner, the positioning apparatus 40 of the terminal includes:

a connecting unit 403, configured to establish a radio resource control connection of a direct link with the first terminal;

The receiving unit 401 is further configured to receive the positioning measurement information sent by the first terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to instruct the positioning device 40 of the terminal to measure the positioning reference signal to be measured, and the positioning reference signal to be measured Including target positioning reference signals.

The configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus 40 of the terminal.

In a feasible implementation manner, the positioning apparatus 40 of the terminal further includes:

The sending unit 404 is configured to report the relative distance between the positioning apparatus 40 of the terminal and the first terminal to the network device.

FIG. 5 is a schematic structural diagram of a positioning apparatus for a terminal according to another embodiment of the present application. As shown in FIG. 5 , the positioning device 50 of the terminal includes:

a receiving unit 501, configured to receive location information and/or direction information sent by a terminal;

The sending unit 502 is configured to send the configuration information of the positioning reference signal of the direct link to the terminal according to the position information and/or the direction information.

In one possible implementation,

The receiving unit 501 is further configured to receive a positioning reference signal selected by the terminal and reported by the terminal.

The sending unit 502 is further configured to send confirmation information to the terminal, where the confirmation information is used to indicate that the positioning reference signal selected by the terminal is available.

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

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

It should be noted here that the above-mentioned device provided in the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the same parts in this embodiment as those in the method embodiments will not be described here. And the beneficial effects will be described in detail.

FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application. As shown in FIG. 6 , the terminal 60 includes a memory 601 , a processor 602 and a transceiver 603 , and the memory 601 , the processor 602 and the transceiver 603 are connected through a bus 604 .

The memory 601 is used to store computer programs.

The processor 602 is configured to implement the method implemented by the first terminal or the second terminal in the above method embodiments when the computer program is executed.

FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in FIG. 7 , the network device 70 includes a memory 701 , a processor 702 and a transceiver 703 , and the memory 701 , the processor 702 and the transceiver 703 are connected through a bus 704 .

The memory 701 is used to store computer programs;

The processor 702 is configured to implement the method implemented by the network device in the above method embodiments when the computer program is executed.

Embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, implements the method implemented by the first terminal, the second terminal, or the network.

An embodiment of the present application provides a program product, including a computer program, and when the computer program is executed by a processor, the method implemented by the first terminal, the second terminal, or the network is implemented.

For the above terminal or network equipment, the transceiver is used to receive and transmit data under the control of the processor.

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor and various circuits of the memory are linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. A transceiver may be a number of elements, including a transmitter and a receiver, that provide means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like. The processor is responsible for managing the bus architecture and general processing, and the memory can store data that the processor uses when performing operations.

The processor can be a central processor (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also use a multi-core architecture.

The processor is configured to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by invoking the computer program stored in the memory. The processor and memory may also be physically separated.

It should be noted here that the above-mentioned terminal and network device provided by the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and there is no need to describe the methods in this embodiment and the method embodiments. The same parts and beneficial effects will be described in detail.

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. 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 having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowcharts and/or block diagrams, and combinations of flows and/or blocks in the flowcharts and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.

These processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

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

Claims

A method for locating a terminal, comprising:

The first terminal determines the target positioning reference signal;

The first terminal sends the target positioning reference signal to the second terminal through the direct link, where the target positioning reference signal is used to determine the relative distance between the second terminal and the first terminal.
The method according to claim 1, wherein the determining of the target positioning reference signal by the first terminal comprises:

obtaining, by the first terminal, configuration information of a positioning reference signal, where the configuration information of the positioning reference signal is used to indicate a positioning reference signal resource pool;

The target positioning reference signal is determined according to the configuration information of the positioning reference signal.
The method according to claim 2, wherein the obtaining, by the first terminal, the configuration information of the positioning reference signal comprises:

sending, by the first terminal, location information and/or direction information to the network device;

The configuration information of the positioning reference signal determined by the network device according to the location information and/or the direction information is received.
The method according to claim 3, wherein the location information includes area information to which the first terminal belongs.
The method according to claim 2, wherein the obtaining, by the first terminal, the configuration information of the positioning reference signal comprises:

The first terminal receives the configuration information of the positioning reference signal broadcast by the network device, and/or the first terminal obtains the configuration information of the preconfigured positioning reference signal.
The method according to claim 2, wherein the determining the target positioning reference signal according to the configuration information of the positioning reference signal comprises:

The first terminal selects and reports a target positioning reference signal from the positioning reference signal resource pool.
The method according to claim 6, wherein the first terminal selects and reports the target positioning reference signal from the positioning reference signal resource pool, comprising:

selecting, by the first terminal, a positioning reference signal from the positioning reference signal resource pool;

The first terminal reports the selected positioning reference signal to the network device, and if the confirmation information returned by the network device is received, the selected positioning reference signal is determined as the target positioning reference signal, and the confirmation information is used to indicate The positioning reference signal selected by the first terminal is available.
The method according to claim 1, wherein the method further comprises:

establishing a direct link radio resource control connection between the first terminal and the second terminal;

The first terminal sends positioning measurement information to the second terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to instruct the second terminal to measure the positioning reference signal to be measured, and the to-be-measured positioning reference signal is to be measured. The positioning reference signal includes the target positioning reference signal.
The method according to claim 8, wherein the positioning measurement information comprises:

configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the first terminal.
The method according to claim 8, wherein the first terminal determines the target positioning reference signal, comprising:

The first terminal performs positioning reference signal detection, and determines the target positioning reference signal according to the detected positioning reference signal.
The method according to claim 10, wherein the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal.
The method according to claim 8, wherein the determining of the target positioning reference signal by the first terminal comprises:

The first terminal determines the target positioning reference signal according to a preconfigured positioning reference signal resource pool.
A method for locating a terminal, comprising:

The second terminal receives the target positioning reference signal sent by the first terminal through the direct link;

The relative distance between the second terminal and the first terminal is determined according to the target positioning reference signal.
The method according to claim 13, wherein the receiving, by the second terminal, the target positioning reference signal sent by the first terminal through the direct link, comprises:

obtaining, by the second terminal, configuration information of a positioning reference signal to be measured, and the target positioning reference signal is any one of the positioning reference signals to be measured;

The target positioning reference signal is received according to the configuration information of the target positioning reference signal.
The method according to claim 14, wherein the obtaining, by the second terminal, the configuration information of the positioning reference signal to be measured, comprises:

sending, by the second terminal, location information and/or direction information to the network device;

The configuration information of the positioning reference signal to be measured determined by the network device according to the location information and/or the direction information is received.
The method according to claim 15, wherein the location information includes area information to which the second terminal belongs.
The method according to claim 14, wherein the obtaining, by the second terminal, the configuration information of the positioning reference signal to be measured, comprises:

The second terminal receives the configuration information of the positioning reference signal to be measured broadcast by the network device.
The method according to claim 14, wherein the obtaining, by the second terminal, the configuration information of the positioning reference signal to be measured, comprises:

The second terminal acquires the configuration information of the preconfigured positioning reference signal to be measured.
The method of claim 13, wherein the method further comprises:

establishing, by the second terminal, a radio resource control connection of a direct link with the first terminal;

The second terminal receives the positioning measurement information sent by the first terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate the positioning reference signal to be measured, and the positioning reference signal to be measured includes the the target positioning reference signal.
The method according to claim 19, wherein the positioning measurement information comprises:

configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the first terminal.
The method according to any one of claims 13-20, further comprising:

The second terminal reports the relative distance between the second terminal and the first terminal to the network device.
A positioning device for a terminal, comprising:

a determining unit for determining a target positioning reference signal;

The sending unit is configured to send the target positioning reference signal to the second terminal through the direct link, where the target positioning reference signal is used to determine the relative distance between the second terminal and the positioning device of the terminal.
The device according to claim 22, wherein the determining unit is configured to:

obtaining configuration information of a positioning reference signal, where the configuration information of the positioning reference signal is used to indicate a positioning reference signal resource pool;

The target positioning reference signal is determined according to the configuration information of the positioning reference signal.
The device according to claim 23, wherein the determining unit is configured to:

Send location and/or direction information to network devices;

The configuration information of the positioning reference signal determined by the network device according to the location information and/or the direction information is received.
The apparatus according to claim 24, wherein the location information includes area information to which the positioning device of the terminal belongs.
The device according to claim 23, wherein the determining unit is configured to:

Receive the configuration information of the positioning reference signal broadcast by the network device, and/or obtain the configuration information of the preconfigured positioning reference signal.
The device according to claim 23, wherein the determining unit is configured to:

Select and report a target positioning reference signal from the positioning reference signal resource pool.
The device according to claim 27, wherein the determining unit is configured to:

selecting a positioning reference signal from the positioning reference signal resource pool;

Reporting the selected positioning reference signal to the network device, and if the confirmation information returned by the network device is received, the selected positioning reference signal is determined as the target positioning reference signal, and the confirmation information is used to indicate the first terminal. The selected positioning reference signal is available.
The apparatus of claim 22, further comprising:

a connection unit, configured to establish a direct link radio resource control connection with the second terminal;

The sending unit is further configured to send positioning measurement information to the second terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to instruct the second terminal to measure the positioning reference signal to be measured, The positioning reference signal to be measured includes the target positioning reference signal.
The apparatus according to claim 29, wherein the positioning measurement information comprises:

The configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the positioning apparatus of the terminal.
The device according to claim 29, wherein the determining unit is configured to:

The positioning reference signal detection is performed, and the target positioning reference signal is determined according to the detected positioning reference signal.
The apparatus of claim 31, wherein the target positioning reference signal is a positioning reference signal other than the detected positioning reference signal.
The device according to claim 29, wherein the determining unit is configured to:

The target positioning reference signal is determined according to a preconfigured positioning reference signal resource pool.
A positioning device for a terminal, comprising:

a receiving unit, configured to receive the target positioning reference signal sent by the first terminal through the direct link;

and a determining unit, configured to determine the relative distance between the positioning device of the terminal and the first terminal according to the target positioning reference signal.
The apparatus according to claim 34, wherein the receiving unit is configured to:

obtaining configuration information of a positioning reference signal to be measured, where the target positioning reference signal is any one of the positioning reference signals to be measured;

The target positioning reference signal is received according to the configuration information of the target positioning reference signal.
The device according to claim 35, wherein the receiving unit is configured to:

Send location and/or direction information to network devices;

The configuration information of the positioning reference signal to be measured determined by the network device according to the location information and/or the direction information is received.
The apparatus according to claim 36, wherein the location information includes area information to which the positioning device of the terminal belongs.
The device according to claim 35, wherein the receiving unit is configured to:

Receive the configuration information of the positioning reference signal to be measured broadcast by the network device.
The device according to claim 35, wherein the receiving unit is configured to:

Obtain the configuration information of the preconfigured positioning reference signal to be measured.
The apparatus of claim 34, further comprising:

a connection unit, configured to establish a direct link radio resource control connection with the first terminal;

The receiving unit is further configured to receive positioning measurement information sent by the first terminal through the radio resource control signaling of the direct link, where the positioning measurement information is used to indicate a positioning reference signal to be measured, the positioning reference signal to be measured The signal includes the target location reference signal.
The apparatus according to claim 40, wherein the positioning measurement information comprises:

configuration information of the target positioning reference signal, and/or the timing advance for sending the positioning reference signal by the first terminal.
The device according to any one of claims 34-40, further comprising:

A sending unit, configured to report the relative distance between the positioning apparatus of the terminal and the first terminal to the network device.
A terminal, characterized in that it includes a memory and a processor, and the memory and the processor are connected;

the memory is used to store computer programs;

The processor is adapted to implement the method of any of claims 1-12 or 13-21 when the computer program is executed.
A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the method according to any one of claims 1-12 or 13-21 is implemented .
A program product, comprising a computer program, characterized in that, when the computer program is executed by a processor, the method according to any one of claims 1-12 or 13-21 is implemented.