WO2019029275A1

WO2019029275A1 - Positioning method and device of 5g system

Info

Publication number: WO2019029275A1
Application number: PCT/CN2018/091992
Authority: WO
Inventors: 全海洋; 郑方政; 傅婧
Original assignee: 电信科学技术研究院有限公司
Priority date: 2017-08-08
Filing date: 2018-06-20
Publication date: 2019-02-14
Also published as: CN109392085A

Abstract

Embodiments of the disclosure provide a positioning method and device of a 5G system. The positioning method comprises: sending a positioning function query request message to a second node; receiving a positioning function response message returned by the second node, the positioning function response message carrying positioning function information of the second node or routing information of a third node; and performing positioning according to the positioning function information of the second node, or establishing connection with the third node according to the routing information of the third node and acquiring positioning function information of the third node to perform positioning. The embodiments of the disclosure allow flexible deployment of various functional modules for positioning in different nodes, so as to meet positioning requirements of different application scenarios of the 5G system. Further, during a positioning process, two nodes must first confirm their respective positioning functions when exchanging information, and then exchange positioning messages according to their respective positioning functions, thereby improving positioning accuracy.

Description

Positioning method and device for 5G system

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201710670513.7, filed on Jan. 8,,,,,,,,,,

Technical field

The embodiments of the present disclosure relate to the field of communications technologies, and in particular, to a positioning method and apparatus for a 5G system.

Background technique

In the related art, the control plane positioning process of LTE (Long Term Evolution) is as shown in FIG. 1:

1. The MME (Mobility Management Entity) receives the location service request, and the location service request may be a request that the terminal UE initiates to the MME through a NAS (Non-access stratum) message, or may be Some entities in the EPC (Evolved Packet Core, 4G core network) (such as GMLC, Gateway Mobile Location Center, Gateway Mobile Location Center) or MME internally initiate location service requests.

2. The MME sends a location service request to the E-SMLC (Evolved Serving Mobile Location Center), and the E-SMLC selects an appropriate location according to the QoS (Quality of Service) carried in the location request. Methods, for example, QoS includes information such as positioning accuracy and delay.

3a. The E-SMLC may trigger a positioning process related to the base station eNB through the LPPa (LTE Positioning Protocol Annex) protocol (such as obtaining auxiliary data required for positioning, or positioning required measurements).

3b. The E-SMLC may trigger the positioning process related to the UE by the LPP (LTE Positioning Protocol) protocol (such as acquiring location estimation, auxiliary data required for transmission positioning, or obtaining measurements required for positioning).

4. The E-SMLC sends a location service response to the MME, which includes some required results (such as the location of the UE, the indication of successful or failed positioning, etc.).

5. The MME returns the location service response to the target entity (ie, the entity that sent the location service request).

However, the fifth-generation mobile communication (5G) system does not support the positioning function, and the 5G system mainly considers three major scenarios: enhanced mobile broadband eMBB scenario, scale Internet of Things mass MTC scenario, low latency and high reliability communication URLLC scenario. Among them, eMBB mainly considers indoor hotspots, dense urban areas, rural areas, urban macro coverage, and high speed. URLLC mainly includes high-reliability low-latency services (such as power plant automation, drone remote control, industrial control, drone connection, etc.), extremely low latency (such as tactile internet, including remote surgery), high-precision positioning (such as intelligence) Traffic collision avoidance system), high availability (such as additional network layer or pass-through enhanced coverage). Massive MTC mainly considers the application of high-volume equipment with a wide range of features in the vertical industry. In these scenarios and applications, positioning is a very important function, but the positioning architecture of the existing LTE system is not well applied to 5G scenarios, such as car networking, direct communication between devices, etc., to locate the 5G system. cause trouble.

Summary of the invention

An object of the present disclosure is to provide a method and an apparatus for positioning a 5G system, so as to solve the problem that the positioning architecture of the LTE system in the related art cannot be applied to the positioning of the 5G system in a 5G scenario.

In order to achieve the above object, in a first aspect, an embodiment of the present disclosure provides a positioning method of a 5G system, which is applied to a first node, and includes:

Sending a positioning function query request message to the second node;

And receiving, by the second node, a positioning function response message, where the positioning function response message carries the positioning function information of the second node, or the positioning function response message carries the routing information of the third node;

And performing positioning according to the positioning function information of the second node; or establishing a connection with the third node according to the routing information of the third node, and acquiring positioning function information of the third node for positioning.

According to a possible embodiment of the present disclosure, when the second node is capable of acquiring the result of the location calculation and the second node is capable of providing the positioning assistance data, the positioning function response message carries the positioning function of the second node. Information;

When the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.

According to a possible embodiment of the present disclosure, the positioning function query request message carries the positioning function requirement information of the first node;

When the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

When the second node is unable to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node.

According to a possible embodiment of the present disclosure, the positioning function information of the second node includes: the second node can obtain the result of the location calculation, the second node can provide the positioning assistance data, the second node supports the positioning measurement, and the second node supports One or more of the position calculations.

According to a possible embodiment of the present disclosure, the routing information of the third node includes: a node identifier of the third node, a routing address of the third node, and one of path information between the third node and the first node. Or multiple.

According to a possible embodiment of the present disclosure, the step of sending a location function query request message to the second node includes:

Sending a positioning function query request message to the second node by using a 5G positioning protocol;

The step of receiving the positioning function response message returned by the second node includes:

Receiving, by the 5G positioning protocol, a positioning function response message returned by the second node.

Transmitting a location function query request message to the second node by using a radio resource control RRC protocol;

The positioning function response message returned by the second node is received by the RRC protocol.

According to a possible embodiment of the present disclosure, the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node.

In a second aspect, the embodiment of the present disclosure further provides a positioning method of a 5G system, which is applied to the second node, and includes:

Receiving a positioning function query request message sent by the first node;

Generating a positioning function response message according to the positioning function query request message, and sending the positioning function response message to the first node; the positioning function response message carrying the positioning function information of the second node, or carrying the positioning function response message Routing information of the third node;

And if the generated positioning function query request message carries the positioning function information of the second node, and performs positioning by interacting with the first node.

According to a possible embodiment of the present disclosure, the step of generating a positioning function response message according to the positioning function query request message includes:

Querying the positioning function of the second node according to the positioning function query request message;

If the second node is capable of acquiring the result of the location calculation and the second node is capable of providing the positioning assistance data, the positioning function response message carries the positioning function information of the second node;

If the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.

The step of generating a positioning function response message according to the positioning function query request message includes:

Querying a positioning function of the second node according to the positioning function requirement information of the first node;

If the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

If the second node is unable to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node.

According to a possible embodiment of the present disclosure, the step of receiving the location function query request message sent by the first node includes:

Receiving, by using a 5G positioning protocol, a positioning function query request message sent by the first node;

The step of generating a positioning function response message and sending the message to the first node includes:

Generating the positioning function response message, and sending the positioning function response message to the first node by using a 5G positioning protocol.

Receiving, by using a radio resource control RRC protocol, a positioning function query request message sent by the first node;

And generating the positioning function response message, and sending the positioning function response message to the first node by using an RRC protocol.

According to a possible embodiment of the present disclosure, the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node;

If the positioning function response message carries the routing information of the third node, the positioning method further includes:

And locating the positioning function information of the first node and the addressing indication information that can be addressed to the first node to the third node.

In a third aspect, the embodiment of the present disclosure further provides a positioning device for a 5G system, which is applied to the first node, and includes:

a first sending module, configured to send a positioning function query request message to the second node;

a first receiving module, configured to receive a positioning function response message returned by the second node; the positioning function response message carries positioning function information of the second node, or the positioning function response message carries a third node Routing information;

a first positioning module, configured to perform positioning according to the positioning function information of the second node; or establish a connection with the third node according to routing information of the third node, and obtain positioning function information of the third node Positioning.

According to a possible embodiment of the present disclosure, the first sending module includes:

a first sending submodule, configured to send a positioning function query request message to the second node by using a 5G positioning protocol;

The first receiving module includes:

The first receiving submodule is configured to receive, by using a 5G positioning protocol, a positioning function response message returned by the second node.

According to a possible embodiment of the present disclosure, the first positioning module includes:

a second positioning submodule, configured to send a positioning function query request message to the second node by using a radio resource control RRC protocol;

The first receiving module includes:

And a second receiving submodule, configured to receive, by using an RRC protocol, a positioning function response message returned by the second node.

In a fourth aspect, an embodiment of the present disclosure further provides a positioning apparatus for a 5G system, which is applied to a first node, including a memory, a processor, and a computer stored on the memory and operable on the processor a program; wherein the processor executes the program to implement the positioning method of a 5G system described in the first aspect.

In a fifth aspect, an embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program, the program being executed by a processor to implement a 5G system as described in the first aspect Positioning method.

In a sixth aspect, an embodiment of the present disclosure further provides a positioning apparatus for a 5G system, which is applied to a second node, and includes:

a second receiving module, configured to receive a positioning function query request message sent by the first node;

Generating a sending module, configured to generate a positioning function response message according to the positioning function query request message, and send the positioning function response message to the first node; the positioning function response message carries the positioning function information of the second node, or the The positioning function response message carries the routing information of the third node;

The third positioning module is configured to: if the generated positioning function query request message carries the positioning function information of the second node, interact with the first node to perform positioning.

According to a possible embodiment of the present disclosure, the generating and transmitting module includes:

a first query sub-module, configured to query a request function of the second node according to the positioning function query request message;

a first generating submodule, configured to: if the second node is capable of acquiring a result of the location calculation, and the second node is capable of providing the positioning assistance data, the positioning function response message carries the positioning function information of the second node; as well as

The second generation sub-module is configured to: when the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.

The generating and sending module includes:

a second query sub-module, configured to query a positioning function of the second node according to the positioning function requirement information of the first node;

a third generation submodule, configured to: if the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

And a fourth generating submodule, configured to: if the second node is not able to meet the positioning function requirement of the first node, the positioning function response message carries routing information of the third node.

According to a possible embodiment of the present disclosure, the second receiving module includes:

a third receiving submodule, configured to receive, by using a 5G positioning protocol, a positioning function query request message sent by the first node;

The generating and sending module includes:

And a third sending submodule, configured to generate the positioning function response message, and send the positioning function response message to the first node by using a 5G positioning protocol.

a fourth receiving submodule, configured to receive, by using a radio resource control RRC protocol, a positioning function query request message sent by the first node;

The generating and sending module includes:

And a fourth sending submodule, configured to generate the positioning function response message, and send the positioning function response message to the first node by using an RRC protocol.

The positioning device further includes:

a forwarding module, configured to: if the positioning function response message carries the routing information of the third node, forward the positioning function information of the first node and the addressing indication information that can be addressed to the first node to The third node.

In a seventh aspect, an embodiment of the present disclosure further provides a positioning device for a 5G system, which is applied to a second node, including a memory, a processor, and a computer stored on the memory and operable on the processor a program that implements the positioning method of a 5G system described in the second aspect when the processor executes the program.

In an eighth aspect, an embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program, the program being executed by a processor to implement a 5G system as described in the second aspect Positioning method.

The above technical solutions provided by the embodiments of the present disclosure have at least the following beneficial effects:

In the positioning method and device of the 5G system of the embodiment of the present disclosure, each functional module for positioning is flexibly deployed on different nodes to meet the positioning requirements of different application scenarios of the 5G system. Further, during the positioning process, the two nodes need to confirm the positioning functions respectively when performing information interaction, and then perform the positioning of the positioning messages according to the positioning functions provided by the two nodes. In addition, the positioning method can be applied to various positioning scenarios in the 5G system to improve the accuracy of positioning.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the related art, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only the present disclosure. Some of the embodiments can be obtained by those of ordinary skill in the art in view of the drawings without any inventive effort.

1 shows a schematic diagram of a positioning process in the related art;

2 is a flow chart showing the steps of a positioning method of a 5G system on a first node side according to an embodiment of the present disclosure;

3 is a schematic diagram showing the division of functional modules in a positioning method of a 5G system according to an embodiment of the present disclosure;

4 is a schematic diagram of an interaction protocol between a first node and a second node of a positioning method of a 5G system according to an embodiment of the present disclosure;

5 is a second schematic diagram of an interaction protocol between a first node and a second node of a positioning method of a 5G system according to an embodiment of the present disclosure;

6 is a flow chart showing the steps of a positioning method of a 5G system on a second node side according to an embodiment of the present disclosure;

7 is a schematic diagram showing an example 1 of a positioning method of a 5G system provided by the present disclosure;

8 is a schematic diagram showing an example 2 of a positioning method of a 5G system provided by the present disclosure;

9 is a schematic diagram showing an example 3 of a positioning method of a 5G system provided by the present disclosure;

10 is a schematic diagram showing an example 4 of a positioning method of a 5G system provided by the present disclosure;

FIG. 11 is a schematic structural diagram of a positioning device of a 5G system on a first node side according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram showing the physical structure of a positioning apparatus of a 5G system according to an embodiment of the present disclosure;

Figure 13 is a block diagram showing the structure of a positioning device of a 5G system on the second node side provided by the facts of the present disclosure.

Detailed ways

The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 2, an embodiment of the present disclosure provides a positioning method of a 5G system, which is applied to a first node, and includes:

Step 21: Send a positioning function query request message to the second node;

Step 22: Receive a positioning function response message returned by the second node; the positioning function response message carries the positioning function information of the second node, or the positioning function response message carries routing information of the third node; as well as

Step 23: Perform positioning according to the positioning function information of the second node; or establish a connection with the third node according to the routing information of the third node, and acquire positioning function information of the third node for positioning.

In the above embodiment of the present disclosure, the interaction of step 21 and step 22 is to confirm the positioning function possessed by the second node. If the second node has the corresponding positioning function, the first node interacts with the second node to achieve positioning; if the second node does not have the corresponding positioning function, and the third node has the corresponding positioning function, the first node passes the second node. Connect to the third node and interact with the third node to achieve positioning.

It should be noted that the first node is generally a terminal, such as a car network terminal, an Internet of Things terminal, a D2D (Device-to-Device, device-to-device) terminal, and the like. The second node may be a base station, a roadside unit RSU, a terminal, or the like. The third node may be a positioning management entity LMF on the core network side, etc., and is not enumerated here.

In order to more clearly describe the positioning method provided by the embodiment of the present disclosure, the embodiment of the present disclosure divides the positioning function into four functional modules according to the functionality in the positioning process, as shown in FIG. 3:

A) Positioning Control Function Module (LCF);

B) Positioning Measurement Function Module (PMF);

C) Positioning Data Function Module (LDF);

D) Mobile Position Calculation Function Module (MLCF).

The functions of the positioning control function module LCF mainly include: 1. Operation control of the terminal positioning technology, for example, which positioning method is to be used for interworking with the terminal (such as assisting the global navigation satellite system A-GNSS positioning method, observing the time difference of arrival (Observed Time) Difference of Arrival, OTDOA) Positioning Method, Enhanced Cell-ID Positioning Method, Time Difference Based Positioning Method (ECID), etc.). 2. The triggering of the terminal positioning function, for example, establishing a positioning session, requesting positioning of a terminal or positioning thereof; 3. locating the measurement configuration; 4. collecting or reporting the positioning related measurement result of the position calculation; Generate interface messages with nodes in the system or in different systems.

The functions of the positioning measurement function module PMF mainly include: 1. positioning-related measurement based on mobile system or other different systems; 2. coordinating the transmission of positioning measurement signals. It should be noted that the positioning measurement function module may be located in a terminal, a base station, or other device capable of performing positioning measurement, such as a sensor.

The functions of the positioning data function module LDF mainly include: reference data for position calculation or provision of auxiliary data. It should be noted that the function module is located in an entity that can provide positioning assistance data or has position calculation function.

The functions of the mobile location calculation function module MLCF mainly include: terminal location calculation (endpointing algorithm, such as trigonometry; measurement using one or more positioning techniques for position calculation). It should be noted that the function module may be located at the terminal, the base station, the gateway mobile positioning center GMLC or other external nodes.

It should be further noted that different nodes, such as terminals, base stations, servers, etc., may be configured with different functional modules. However, in order to support information transmission between multiple nodes, the positioning control function module LCF must be provided for each node, and other functional modules can be configured/loaded according to the functional requirements of the actual node. Communication between different nodes can use a uniform positioning protocol for information interaction.

Since the function modules of different nodes may be different, the related procedures for supporting the functional confirmation need to be supported in the positioning protocol, and the functions supported by each other are exchanged; that is, through the

above steps

21 and 22, the positioning functions of the respective nodes are confirmed and confirmed.

Further, in the foregoing embodiment of the present disclosure, when the second node is capable of acquiring the result of the location calculation and the second node is capable of providing the positioning assistance data, the positioning function response message carries the second node. Positioning function information.

According to the above example, the result that the second node can obtain the position calculation is specifically: the second node is provided with a moving position calculation function module MLCF, and the second node can perform position calculation and obtain the result of the position calculation. Alternatively, the mobile node calculation function module MLCF is not provided on the second node, but the mobile terminal calculation function module MLCF is provided on the node Q capable of information interaction with the second node, and the node Q can perform position calculation, and the second node The result of the position calculation can be obtained from the node Q.

The second node can provide the positioning assistance data specifically: the second node is provided with the positioning data function module LDF, and the second node can directly provide the positioning assistance data. Alternatively, the positioning data function module LDF is not disposed on the second node, but the positioning data function module LDF is disposed on the node W capable of information interaction with the second node, and the node W can provide positioning assistance data, and the second node The positioning assistance data can be obtained from the node W.

When the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node. At this time, the third node can acquire the result of the location calculation and the third node can provide the positioning assistance data.

According to the above example, the result that the second node is unable to obtain the location calculation is specifically: the mobile node calculation function module MLCF is not disposed on the second node, and the other node capable of information interaction with the second node does not set the mobile location calculation. Function module MLCF.

The second node is not able to provide the positioning assistance function. Specifically, the positioning data function module LDF is not disposed on the second node, and the positioning data function module LDF is not disposed on other nodes capable of information interaction with the second node.

Further, in the foregoing embodiment of the present disclosure, the positioning function query request message carries the positioning function requirement information of the first node;

When the second node is unable to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node. The third node is a node that can meet the positioning function requirement of the first node. The second node may forward the positioning function requirement information of the first node to the surrounding nodes, thereby determining a third node that can satisfy the positioning function requirement of the first node.

It should be noted that, when the location function query request message carries the location function requirement information of the first node, determining the manner in which the location function response message carries the content not only needs to check the location function of the second node, but also needs to determine the second node. Whether the positioning function can meet the positioning function requirements of the first node.

Further, the positioning function information of the second node includes: the second node can obtain the result of the location calculation, the second node can provide the positioning assistance data, the second node supports the positioning measurement, and the second node supports the location calculation or Multiple. That is, the second node includes one or more of a positioning data function module LDF, a positioning data function module LDF, and a positioning measurement function module PMF.

Optionally, in the foregoing embodiment of the disclosure, the routing information of the third node includes: a node identifier of the third node, a routing address of the third node, and path information between the third node and the first node. One or more of them. The first node can be routed to the third node according to the routing information of the third node carried in the positioning function response message, and communicate with the third node to achieve positioning.

It should be noted that the positioning function query request message carries the positioning function information of the first node and the addressing indication information that can be addressed to the first node. Thereby, the second node or the third node can determine the positioning function possessed by the first node, thereby facilitating the positioning process with the first node.

Since the function distribution of the positioning is very flexible, it is necessary to confirm the functions of each node when the two nodes perform information interaction. For example, a terminal can determine whether to support location calculation or provide positioning assistance data with the base station. If the base station can support, it can perform subsequent processes with the base station to obtain auxiliary data, provide measurement results, obtain location information, and the like. If the base station cannot support location calculation or provide positioning assistance data, the base station may further provide more information, for example, may provide a channel for the terminal to establish communication with the positioning management entity LMF of the core network to acquire related information. The process of such functional confirmation may be performed by a positioning protocol or by an RRC protocol (for example, defining a new process in the RRC protocol or through a capability interaction process).

Specifically, as shown in FIG. 4, the interaction process in the 5G positioning protocol is as follows:

Step 21 includes:

Step 211: Send a positioning function query request message to the second node by using a 5G positioning protocol.

Correspondingly, step 22 includes:

Step 221: Receive, by using a 5G positioning protocol, a positioning function response message returned by the second node.

When the first node and the second node can communicate with each other, the positioning function query request message can be sent to the other party through the 5G positioning protocol. After receiving the positioning function query request message of the other party, the receiving party can feedback its own positioning function information. Alternatively, the receiver may provide routing information that can be routed to a third node (a node with a positioning server function).

The 5G positioning protocol may specifically be an LTE positioning protocol, that is, an LPP protocol. Or, a positioning protocol for inter-node communication. This is not specifically limited.

Specifically, as shown in FIG. 5, the interaction process in the RRC protocol is as follows:

Step 21 includes:

Step 212: Send a positioning function query request message to the second node by using a radio resource control RRC protocol.

Correspondingly, step 22 includes:

Step 222: Receive a positioning function response message returned by the second node by using an RRC protocol.

Similarly, when the first node and the second node can communicate with each other, the positioning function query request message can be sent to the other party through the 5G positioning protocol, and after receiving the positioning function query request message of the other party, the receiving party can feedback its own positioning. Functional information. Alternatively, the receiver may provide routing information that can be routed to a third node (a node with a positioning server function).

It should be noted that if the first node sends a positioning function query request message and does not receive the feedback message of the second node within a preset time period, the first node may consider that the second node does not support the positioning function.

In summary, in the above-mentioned embodiments of the present disclosure, in order to meet the positioning requirements of different application scenarios of the 5G system, various functional modules for positioning are flexibly deployed on different nodes. Further, during the positioning process, the two nodes need to confirm the positioning functions respectively when performing information interaction, and then perform the positioning of the positioning messages according to the positioning functions provided by the two nodes. In addition, the positioning method can be applied to various positioning scenarios in the 5G system to improve the accuracy of positioning.

As shown in FIG. 6, the embodiment of the present disclosure further provides a positioning method of a 5G system, which is applied to a second node, and includes:

Step 61: Receive a positioning function query request message sent by the first node.

Step 62: Generate a positioning function response message according to the positioning function query request message, and send the positioning function response message to the first node; the positioning function response message carries the positioning function information of the second node, or the positioning function response The message carries the routing information of the third node;

Step 63: If the generated positioning function query request message carries the positioning function information of the second node, interact with the first node to perform positioning.

In the above embodiment of the present disclosure, the interaction of step 61 and step 62 is to confirm the positioning function possessed by the second node. If the second node has a corresponding positioning function, the first node interacts with the second node to achieve positioning. If the second node does not have the corresponding positioning function, and the third node has the corresponding positioning function, the first node is connected to the third node through the second node, and interacts with the third node to achieve positioning.

Similarly, the embodiment of the present disclosure divides the positioning function into four functional modules according to the functionality in the positioning process, as shown in FIG. 3:

A) Positioning Control Function Module (LCF);

B) Positioning Measurement Function Module (PMF);

C) Positioning Data Function Module (LDF);

D) Mobile Position Calculation Function Module (MLCF).

The function and setting of each of the functional modules are the same as those in the positioning method on the first node side described above, and a repeated description thereof will not be repeated here.

Further, step 62 in the above embodiment of the present disclosure includes:

Step 621: Query the positioning function of the second node according to the positioning function query request message;

Step 622: If the second node can obtain the result of the location calculation and the second node can provide the positioning assistance data, the positioning function response message carries the positioning function information of the second node. According to the above example, the result that the second node can obtain the position calculation is specifically: the second node is provided with a moving position calculation function module MLCF, and the second node can perform position calculation and obtain the result of the position calculation. Alternatively, the mobile node calculation function module MLCF is not provided on the second node, but the mobile terminal calculation function module MLCF is provided on the node Q capable of information interaction with the second node, and the node Q can perform position calculation, and the second node The result of the position calculation can be obtained from the node Q.

Step 623: If the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node. At this time, the third node can acquire the result of the location calculation and the third node can provide the positioning assistance data.

The second node is not able to provide the positioning assistance function data. Specifically, the positioning data function module LDF is not disposed on the second node, and the positioning data function module LDF is not disposed on other nodes capable of information interaction with the second node.

Then step 62 includes:

Step 624: Query the positioning function of the second node according to the positioning function requirement information of the first node.

Step 625: If the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

Step 626: If the second node is not able to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node. The third node is a node that can meet the positioning function requirement of the first node. The second node may forward the positioning function requirement information of the first node to the surrounding nodes, thereby determining a third node that can satisfy the positioning function requirement of the first node.

It should be noted that the positioning function query request message carries the positioning function information of the first node and the addressing indication information that can be addressed to the first node;

If the positioning function response message carries the positioning function information of the second node, the second node can determine the positioning function of the first node, thereby facilitating the positioning process with the first node.

If the positioning function response message carries the routing information of the third node, the second node forwards the positioning function information of the first node and the addressing indication information that can be addressed to the first node to the The third node. Then, the third node can determine the positioning function possessed by the first node, thereby facilitating the positioning process with the first node.

Since the function distribution of the positioning is very flexible, it is necessary to confirm the functions of each node when the two nodes perform information interaction. For example, a terminal may first determine whether to support location calculation or provide positioning assistance data with the base station. If the base station can support, the base station may perform subsequent processes to obtain auxiliary data, provide measurement results, obtain location information, and the like. If the base station cannot support location calculation or provide positioning assistance data, the base station may further provide more information, for example, may provide a channel for the terminal to establish communication with the positioning management entity LMF of the core network to acquire related information. The process of such functional confirmation may be performed by a positioning protocol or by an RRC protocol (for example, defining a new process in the RRC protocol or through a capability interaction process).

Step 61 includes:

Step 611: Receive a positioning function query request message sent by the first node by using a 5G positioning protocol.

Step 62 includes:

Step 627: Generate the positioning function response message, and send the positioning function response message to the first node by using a 5G positioning protocol.

Step 61 includes:

Step 612: Receive a positioning function query request message sent by the first node by using a radio resource control RRC protocol.

Step 62 includes:

Step 628: Generate the positioning function response message, and send the positioning function response message to the first node by using an RRC protocol.

It should be noted that, if the first node sends a positioning function query request message and does not receive the feedback message of the second node within a preset time period, the first node may consider that the second node does not support the positioning function.

In summary, in the above-mentioned embodiments of the present disclosure, in order to meet the positioning requirements of different application scenarios of the 5G system, various functional modules for positioning are flexibly deployed on different nodes. Further, during the positioning process, the two nodes need to confirm the positioning functions respectively when performing information interaction, and then perform the positioning of the positioning messages according to the positioning functions provided by the two nodes. The positioning method can be applied to various positioning scenarios in the 5G system to improve the accuracy of positioning.

In order to more clearly describe the positioning method of the 5G system provided by the present application, the positioning method will be described below with reference to the accompanying drawings and examples.

Example 1: The first node is the terminal, the second node is the base station, and the third node is the positioning management entity LMF.

As shown in FIG. 7, the positioning management entity LMF has a positioning control function module LCF, a positioning data function module LDF, and a mobile position calculation function module MLCF. The terminal has a positioning control function module LCF, a positioning measurement function module PMF, and a mobile position calculation function module MLCF. The base station can implement a positioning control function module LCF and a positioning measurement function module PMF.

Different nodes exchange information through a unified interface protocol, such as the LPP protocol (LTE positioning protocol). From the perspective of measurement, the radio resource control RRC protocol may be required between the terminal and the base station to provide necessary measurement configurations and measurement results. The generation of LPP messages is implemented by the LCF module. The internal modules of each node are also coordinated and communicated through the LCF module. This functional distribution is suitable for most 5G application scenarios, namely centralized positioning architecture.

Example 2: The first node is a terminal, and the second node is a base station

As shown in FIG. 8, in this case, the base station has all the positioning functions, that is, the base station includes a positioning control function module LCF, a positioning data function module LDF, a positioning measurement function module PMF, and a mobile position calculation function module MLCF. The terminal has a positioning control function module LCF, a positioning measurement function module PMF, and a mobile position calculation function module MLCF.

This positioning function distribution can be applied to a distributed positioning architecture, that is, the provision of positioning assistance data and the calculation of the terminal location can be completed in the base station. The LPP protocol is used between the terminal and the base station to perform positioning related information interaction. Measurement configuration and measurement reporting, etc. related to positioning measurements may interact using the RRC protocol. Similarly, the LCF is the coordination center for each functional module within each node.

Example 3: The first node is a terminal, and the second node is a roadside unit RSU

As shown in FIG. 9, in this case, the roadside unit RSU has all the positioning functions, that is, the roadside unit RSU includes a positioning control function module LCF, a positioning data function module LDF, a positioning measurement function module PMF, and a mobile position calculation function. Module MLCF. The terminal has a positioning control function module LCF, a positioning measurement function module PMF, and a mobile position calculation function module MLCF.

The interface between the terminal and the roadside unit RSU is a PC5 interface, and communication between the two nodes is performed on the PC5 interface through the LPP protocol. The measurements made on this interface are also different from the measurements of the RRC control shown in the previous embodiment. Here you need to measure the signal on the PC5 interface. This deployment scenario is generally applicable to the Internet of Vehicles.

Example 4: The first node is a terminal, and the second node is a terminal

As shown in FIG. 10, the deployment scenario is applicable to a D2D scenario; in addition to positioning between the terminal and the base station, related information or measurement results may be interactively located between the two directly communicating D2D terminals.

Both terminals have a positioning control function module LCF, a positioning measurement function module PMF, and a mobile position calculation function module MLCF.

In the D2D scenario, some positioning assistance data is obtained from a base station or other location server. The two terminals can interact with each other's own measurement results, positioning results, and so on. It is also possible that one terminal can transmit a positioning signal on the PC5 interface, and the other terminal performs measurement of the positioning signal on the PC5 interface to calculate a relative position relative to the other terminal. Of course, the D2D terminal must also confirm in advance whether the other party supports the relevant positioning function.

In order to solve the above problem, as shown in FIG. 11 , the embodiment of the present disclosure further provides a positioning device of the 5G system, which is applied to the first node, and includes:

The first sending module 1101 is configured to send a positioning function query request message to the second node;

The first receiving module 1102 is configured to receive a positioning function response message returned by the second node, where the positioning function response message carries the positioning function information of the second node, or the positioning function response message carries a third Routing information for the node;

The first positioning module 1103 is configured to perform positioning according to the positioning function information of the second node, or establish a connection with the third node according to routing information of the third node, and acquire positioning function information of the third node. Positioning.

Optionally, when the second node is capable of acquiring the result of the location calculation and the second node is capable of providing the positioning assistance data, the positioning function response message carries the positioning function information of the second node;

Optionally, the positioning function query request message carries the positioning function requirement information of the first node;

Optionally, the positioning function information of the second node includes: a second node capable of acquiring a result of the location calculation, a second node capable of providing positioning assistance data, a second node supporting positioning measurement, and a second node supporting location calculation. Or multiple.

Optionally, the routing information of the third node includes: a node identifier of the third node, a routing address of the third node, and one or more of path information between the third node and the first node.

Optionally, the first sending module includes:

The first receiving module includes:

Optionally, the first positioning module includes:

The first receiving module includes:

Optionally, the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node.

It should be noted that the positioning device of the 5G system provided by the foregoing embodiment of the present disclosure is a positioning device capable of performing the positioning method of the above 5G system, and all embodiments of the positioning method of the 5G system are applicable to the positioning of the 5G system. Both devices can achieve the same or similar benefits.

As shown in FIG. 12, an embodiment of the present disclosure further provides a positioning device for a 5G system, which is applied to a first node, including a memory 1210, a processor 1200, and is stored on the memory and operable on the processor. a computer program; wherein the processor 1200 performs the following steps when executing the program:

Sending a positioning function query request message to the second node;

The embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program, the program being executed by the processor to implement the following steps:

Sending a positioning function query request message to the second node;

The computer readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

As shown in FIG. 13 , an embodiment of the present disclosure further provides a positioning device for a 5G system, which is applied to a second node, and includes:

The second receiving module 1301 is configured to receive a positioning function query request message sent by the first node;

The generating and sending module 1302 is configured to generate a positioning function response message according to the positioning function query request message, and send the positioning function response message to the first node, where the positioning function response message carries the positioning function information of the second node, or The routing function response message carries the routing information of the third node;

The third positioning module 1303 is configured to: if the generated positioning function query request message carries the positioning function information of the second node, interact with the first node to perform positioning.

Optionally, the generating and sending module includes:

a first generating submodule, configured to: if the second node is capable of acquiring a result of the location calculation, and the second node is capable of providing the positioning assistance data, the positioning function response message carries the positioning function information of the second node;

The generating and sending module includes:

Optionally, the second receiving module includes:

The generating and sending module includes:

Optionally, the second receiving module includes:

The generating and sending module includes:

Optionally, the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node;

The positioning device further includes:

As shown in FIG. 12, an embodiment of the present disclosure further provides a positioning device for a 5G system, which is applied to a second node, including a memory 1201, a processor 1200, and is stored on the memory and operable on the processor. Computer program. The processor 1200 implements the following steps when executing the program:

Receiving a positioning function query request message sent by the first node;

And generating, according to the positioning function query request message, a positioning function response message, and sending the positioning function response message to the first node; the positioning function response message carrying the positioning function information of the second node, or the positioning function response message carrying the third Routing information for the node;

Receiving a positioning function query request message sent by the first node;

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer readable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

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 of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more flows of the flowchart and/or in one or more blocks.

The computer program instructions can also be stored in a computer readable storage medium capable of directing a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable storage medium produce a paper product comprising the instruction device. The instruction means implements the functions specified in one or more blocks of the flow or in a flow or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programming device. The steps are provided to implement the functions specified in one or more blocks of the flowchart or in a block or blocks of the flowchart.

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and refinements without departing from the principles of the present disclosure. It should also be considered as the scope of protection of the present disclosure.

Claims

A positioning method for a 5G system, applied to a first node, comprising:

Sending a positioning function query request message to the second node;

And receiving, by the second node, a positioning function response message, where the positioning function response message carries the positioning function information of the second node, or the positioning function response message carries the routing information of the third node;

And performing positioning according to the positioning function information of the second node; or establishing a connection with the third node according to the routing information of the third node, and acquiring positioning function information of the third node for positioning.
The positioning method according to claim 1, wherein when the second node is capable of acquiring a result of the location calculation and the second node is capable of providing positioning assistance data, the positioning function response message carries the second node Positioning function information;

When the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.
The locating method according to claim 1, wherein the positioning function query request message carries positioning function requirement information of the first node;

When the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

When the second node is unable to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node.
The positioning method according to any one of claims 1 to 3, wherein the positioning function information of the second node comprises: the second node is capable of acquiring the result of the location calculation, the second node is capable of providing the positioning assistance data, and the second The node supports one or more of positioning measurements and second node support location calculations.
The positioning method according to any one of claims 1 to 3, wherein the routing information of the third node comprises: a node identifier of the third node, a routing address of the third node, a third node, and the first One or more of the path information between the nodes.
The locating method according to claim 1, wherein the step of transmitting a positioning function query request message to the second node comprises:

Sending a positioning function query request message to the second node by using a 5G positioning protocol;

The step of receiving the positioning function response message returned by the second node includes:

Receiving, by the 5G positioning protocol, a positioning function response message returned by the second node.
The locating method according to claim 1, wherein the step of sending a positioning function query request message to the second node comprises:

Transmitting a location function query request message to the second node by using a radio resource control RRC protocol;

The step of receiving the positioning function response message returned by the second node includes:

The positioning function response message returned by the second node is received by the RRC protocol.
The positioning method according to claim 1, wherein the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node.
A positioning method for a 5G system, applied to a second node, comprising:

Receiving a positioning function query request message sent by the first node;

Generating a positioning function response message according to the positioning function query request message, and sending the positioning function response message to the first node; the positioning function response message carrying the positioning function information of the second node, or carrying the positioning function response message Routing information of the third node;

And if the generated positioning function query request message carries the positioning function information of the second node, and performs positioning by interacting with the first node.
The locating method according to claim 9, wherein the step of generating a positioning function response message according to the positioning function query request message comprises:

Querying the positioning function of the second node according to the positioning function query request message;

If the second node is capable of acquiring the result of the location calculation and the second node is capable of providing the positioning assistance data, the positioning function response message carries the positioning function information of the second node;

If the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.
The positioning method according to claim 9, wherein the positioning function query request message carries positioning function requirement information of the first node;

The step of generating a positioning function response message according to the positioning function query request message includes:

Querying a positioning function of the second node according to the positioning function requirement information of the first node;

If the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

If the second node is unable to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node.
The positioning method according to any one of claims 9-11, wherein the positioning function information of the second node comprises: the second node is capable of acquiring the result of the location calculation, the second node is capable of providing the positioning assistance data, and the second The node supports one or more of positioning measurements and second node support location calculations.
The positioning method according to any one of claims 9 to 11, wherein the routing information of the third node comprises: a node identifier of the third node, a routing address of the third node, a third node and the first One or more of the path information between the nodes.
The locating method according to claim 9, wherein the step of receiving the positioning function query request message sent by the first node comprises:

Receiving, by using a 5G positioning protocol, a positioning function query request message sent by the first node;

The step of generating a positioning function response message and sending the message to the first node includes:

Generating the positioning function response message, and sending the positioning function response message to the first node by using a 5G positioning protocol.
The locating method according to claim 9, wherein the step of receiving the positioning function query request message sent by the first node comprises:

Receiving, by using a radio resource control RRC protocol, a positioning function query request message sent by the first node;

The step of generating a positioning function response message and sending the message to the first node includes:

And generating the positioning function response message, and sending the positioning function response message to the first node by using an RRC protocol.
The locating method according to claim 9, wherein the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node;

If the positioning function response message carries the routing information of the third node, the positioning method further includes:

And locating the positioning function information of the first node and the addressing indication information that can be addressed to the first node to the third node.
A positioning device for a 5G system, applied to a first node, comprising:

a first sending module, configured to send a positioning function query request message to the second node;

a first receiving module, configured to receive a positioning function response message returned by the second node; the positioning function response message carries positioning function information of the second node, or the positioning function response message carries a third node Routing information;

a first positioning module, configured to perform positioning according to the positioning function information of the second node; or establish a connection with the third node according to routing information of the third node, and obtain positioning function information of the third node Positioning.
The locating device according to claim 17, wherein when the second node is capable of acquiring a result of the location calculation and the second node is capable of providing positioning assistance data, the positioning function response message carries the second node Positioning function information;

When the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.
The locating device according to claim 17, wherein the positioning function query request message carries positioning function requirement information of the first node;

When the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

When the second node is unable to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node.
The positioning device according to any one of claims 17 to 19, wherein the positioning function information of the second node comprises: the second node is capable of acquiring the result of the position calculation, the second node is capable of providing the positioning assistance data, and the second The node supports one or more of positioning measurements and second node support location calculations.
The locating device according to any one of claims 17 to 19, wherein the routing information of the third node comprises: a node identifier of the third node, a routing address of the third node, a third node, and the first One or more of the path information between the nodes.
The positioning device of claim 17, wherein the first transmitting module comprises:

a first sending submodule, configured to send a positioning function query request message to the second node by using a 5G positioning protocol;

The first receiving module includes:

The first receiving submodule is configured to receive, by using a 5G positioning protocol, a positioning function response message returned by the second node.
The positioning device of claim 17, wherein the first positioning module comprises:

a second positioning submodule, configured to send a positioning function query request message to the second node by using a radio resource control RRC protocol;

The first receiving module includes:

And a second receiving submodule, configured to receive, by using an RRC protocol, a positioning function response message returned by the second node.
The locating device according to claim 17, wherein the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node.
A positioning device for a 5G system, applied to a first node, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor; the processor implementing the program to implement the following step:

Sending a positioning function query request message to the second node;

And receiving, by the second node, a positioning function response message, where the positioning function response message carries the positioning function information of the second node, or the positioning function response message carries the routing information of the third node;

And performing positioning according to the positioning function information of the second node; or establishing a connection with the third node according to the routing information of the third node, and acquiring positioning function information of the third node for positioning.
The locating device according to claim 25, wherein when the second node is capable of acquiring a result of the location calculation and the second node is capable of providing positioning assistance data, the positioning function response message carries the second node Positioning function information;

When the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.
The locating device according to claim 25, wherein the positioning function query request message carries positioning function requirement information of the first node;

When the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

When the second node is unable to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node.
The positioning device according to any one of claims 25-27, wherein the positioning function information of the second node comprises: the second node is capable of acquiring the result of the position calculation, the second node is capable of providing positioning assistance data, and the second The node supports one or more of positioning measurements and second node support location calculations.
The locating device according to any one of claims 25-27, wherein the routing information of the third node comprises: a node identifier of the third node, a routing address of the third node, a third node, and the first One or more of the path information between the nodes.
The locating device according to claim 25, wherein the step of transmitting a location function query request message to the second node comprises:

Sending a positioning function query request message to the second node by using a 5G positioning protocol;

The step of receiving the positioning function response message returned by the second node includes:

Receiving, by the 5G positioning protocol, a positioning function response message returned by the second node.
The locating device according to claim 25, wherein the step of transmitting a location function query request message to the second node comprises:

Transmitting a location function query request message to the second node by using a radio resource control RRC protocol;

The step of receiving the positioning function response message returned by the second node includes:

The positioning function response message returned by the second node is received by the RRC protocol.
The locating device according to claim 25, wherein the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node.
A computer readable storage medium having stored thereon a computer program, wherein the computer program is executed by a processor to implement a positioning method of a 5G system according to any one of claims 1-8.
A positioning device for a 5G system, applied to a second node, comprising:

a second receiving module, configured to receive a positioning function query request message sent by the first node;

Generating a sending module, configured to generate a positioning function response message according to the positioning function query request message, and send the positioning function response message to the first node; the positioning function response message carries the positioning function information of the second node, or the The positioning function response message carries the routing information of the third node;

The third positioning module is configured to: if the generated positioning function query request message carries the positioning function information of the second node, interact with the first node to perform positioning.
The locating device of claim 34, wherein the generating and transmitting module comprises:

a first query sub-module, configured to query a request function of the second node according to the positioning function query request message;

a first generating submodule, configured to: if the second node is capable of acquiring a result of the location calculation, and the second node is capable of providing the positioning assistance data, the positioning function response message carries the positioning function information of the second node; as well as

The second generation sub-module is configured to: when the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.
The locating device according to claim 34, wherein the positioning function query request message carries positioning function requirement information of the first node;

The generating and sending module includes:

a second query sub-module, configured to query a positioning function of the second node according to the positioning function requirement information of the first node;

a third generation submodule, configured to: if the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

And a fourth generating submodule, configured to: if the second node is not able to meet the positioning function requirement of the first node, the positioning function response message carries routing information of the third node.
The positioning device according to any one of claims 34 to 36, wherein the positioning function information of the second node comprises: the second node is capable of acquiring the result of the position calculation, the second node is capable of providing positioning assistance data, and the second The node supports one or more of positioning measurements and second node support location calculations.
The locating device according to any one of claims 34 to 36, wherein the routing information of the third node comprises: a node identifier of the third node, a routing address of the third node, a third node and the first node One or more of the path information between the nodes.
The positioning device of claim 34, wherein the second receiving module comprises:

a third receiving submodule, configured to receive, by using a 5G positioning protocol, a positioning function query request message sent by the first node;

The generating and sending module includes:

And a third sending submodule, configured to generate the positioning function response message, and send the positioning function response message to the first node by using a 5G positioning protocol.
The positioning device of claim 34, wherein the second receiving module comprises:

a fourth receiving submodule, configured to receive, by using a radio resource control RRC protocol, a positioning function query request message sent by the first node;

The generating and sending module includes:

And a fourth sending submodule, configured to generate the positioning function response message, and send the positioning function response message to the first node by using an RRC protocol.
The locating device according to claim 34, wherein the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node;

The positioning device further includes:

a forwarding module, configured to: if the positioning function response message carries the routing information of the third node, forward the positioning function information of the first node and the addressing indication information that can be addressed to the first node to The third node.
A positioning device for a 5G system, applied to a second node, comprising a memory, a processor, and a computer program stored on the memory and operable on the processor; wherein the processor executes the program Implement the following steps:

Receiving a positioning function query request message sent by the first node;

Generating a positioning function response message according to the positioning function query request message, and sending the positioning function response message to the first node; the positioning function response message carrying the positioning function information of the second node, or carrying the positioning function response message Routing information of the third node;

And if the generated positioning function query request message carries the positioning function information of the second node, and performs positioning by interacting with the first node.
The locating device according to claim 42, wherein the step of generating a positioning function response message according to the positioning function query request message comprises:

Querying the positioning function of the second node according to the positioning function query request message;

If the second node is capable of acquiring the result of the location calculation and the second node is capable of providing the positioning assistance data, the positioning function response message carries the positioning function information of the second node;

If the second node is unable to obtain the result of the location calculation or the second node is unable to provide the positioning assistance data, the positioning function response message carries the routing information of the third node.
The locating device according to claim 42, wherein the positioning function query request message carries positioning function requirement information of the first node;

The step of generating a positioning function response message according to the positioning function query request message includes:

Querying a positioning function of the second node according to the positioning function requirement information of the first node;

If the second node can meet the positioning function requirement of the first node, the positioning function response message carries the positioning function information of the second node;

If the second node is unable to meet the positioning function requirement of the first node, the positioning function response message carries the routing information of the third node.
The positioning device according to any one of claims 42 to 44, wherein the positioning function information of the second node comprises: the second node is capable of acquiring the result of the position calculation, the second node is capable of providing positioning assistance data, and the second The node supports one or more of positioning measurements and second node support location calculations.
The locating device according to any one of claims 42 to 44, wherein the routing information of the third node comprises: a node identifier of the third node, a routing address of the third node, a third node and the first node One or more of the path information between the nodes.
The locating device according to claim 42, wherein the step of receiving the positioning function query request message sent by the first node comprises:

Receiving, by using a 5G positioning protocol, a positioning function query request message sent by the first node;

The step of generating a positioning function response message and sending the message to the first node includes:

Generating the positioning function response message, and sending the positioning function response message to the first node by using a 5G positioning protocol.
The locating device according to claim 42, wherein the step of receiving the positioning function query request message sent by the first node comprises:

Receiving, by using a radio resource control RRC protocol, a positioning function query request message sent by the first node;

The step of generating a positioning function response message and sending the message to the first node includes:

And generating the positioning function response message, and sending the positioning function response message to the first node by using an RRC protocol.
The locating device according to claim 42, wherein the positioning function query request message carries positioning function information of the first node and addressing indication information that can be addressed to the first node;

If the positioning function response message carries the routing information of the third node, the positioning method further includes:

And locating the positioning function information of the first node and the addressing indication information that can be addressed to the first node to the third node.
A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement a positioning method of a 5G system according to any one of claims 9-16.