WO2024066455A1

WO2024066455A1 - Local architecture-based positioning methods and system

Info

Publication number: WO2024066455A1
Application number: PCT/CN2023/098668
Authority: WO
Inventors: 张燕; 彭政; 孙雅文; 周永生; 赵琼鹰; 张玉杰; 黄河; 张志能
Original assignee: 中兴通讯股份有限公司
Priority date: 2022-09-30
Filing date: 2023-06-06
Publication date: 2024-04-04
Also published as: CN117858000A

Abstract

Provided in the embodiments of the present invention are local architecture-based positioning methods and system, a method comprising: a positioning server receives from an application server a position query request or position subscription request for a user equipment, the positioning server being deployed locally; the positioning server sends to a base station a positioning request message for the user equipment according to the position query request or the position subscription request, and receives from the base station a positioning response message carrying a positioning result of the user equipment; and the positioning server sends the positioning response message to the application server.

Description

Positioning method and system based on local architecture

Technical Field

The embodiments of the present invention relate to the field of communications, and in particular, to a positioning method and system based on a local architecture.

Background technique

The positioning system in related technologies is mainly a description of the core network architecture in the protocol. However, the core network architecture has many problems such as complex network element deployment, cumbersome cross-network element process interaction, and long positioning delay. For application scenarios such as campuses, it is necessary to be able to achieve lightweight positioning and ensure that local data does not leave the campus to reduce positioning delay.

Summary of the invention

The embodiments of the present invention provide a local architecture positioning method and system to at least solve the problems of complex network element deployment, cumbersome cross-network element process interaction, and long positioning delay existing in the core network-based positioning architecture in the related art.

According to one embodiment of the present invention, a positioning method based on a local architecture is provided, comprising: a positioning server receives a query location request or a subscription location request for a user equipment from an application server, wherein the positioning server is deployed locally; the positioning server sends a positioning request message for the user equipment to a base station according to the query location request or the subscription location request, and receives a positioning response message carrying a positioning result for the user equipment from the base station; the positioning server sends the positioning response message to the application server.

According to another embodiment of the present invention, a positioning method based on a local architecture is provided, comprising: a base station receives a positioning request message for a user equipment from a locally deployed positioning server, wherein the positioning request message is triggered by the positioning server receiving a query location request or a subscription location request from an application server; the base station sends a positioning response message carrying a positioning result of the user equipment to the positioning server, so that the positioning server sends the positioning response message to the application server.

According to another embodiment of the present invention, a positioning system based on a local architecture is provided, including a locally deployed positioning server, an application server and a base station, wherein the positioning server includes: a receiving module, configured to receive a query location request or a subscription location request for a user equipment from the application server; an interaction module, configured to send a positioning request message for the user equipment to the base station according to the query location request or the subscription location request, and receive a positioning response message carrying the positioning result of the user equipment from the base station; a sending module, configured to send the positioning response message to the application server.

According to yet another embodiment of the present invention, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any one of the above method embodiments when running.

According to yet another embodiment of the present invention, there is provided an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram comparing a local positioning architecture and a core network positioning architecture;

FIG2 is a flow chart of a positioning method based on a local architecture according to an embodiment of the present invention;

FIG3 is a flow chart of a positioning method based on a local architecture according to another embodiment of the present invention;

4 is a structural block diagram of a positioning system based on a local architecture according to an embodiment of the present invention;

5 is a structural block diagram of a positioning system based on a local architecture according to another embodiment of the present invention;

FIG6 is a structural block diagram of a local positioning architecture according to an embodiment of the present invention;

7 is a flowchart of a link establishment interaction process between a base station and a local positioning server according to an embodiment of the present invention;

8 is a flow chart of an application server initiating positioning according to an embodiment of the present invention;

FIG9 is a flow chart of UE-initiated positioning according to an embodiment of the present invention;

10 is a flowchart of a deployment big data platform scenario supporting application servers to initiate positioning according to an embodiment of the present invention;

FIG. 11 is a flowchart of deploying a big data platform scenario to support UE-initiated positioning according to an embodiment of the present invention.

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and in combination with the embodiments.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

The embodiment of the present invention provides a local positioning architecture, including: an application server, a positioning server, and a base station. The local positioning architecture is different from the core network-based positioning architecture defined by the protocol. As shown in FIG1 , the local positioning architecture has the following advantages over the core network positioning architecture:

1. The local positioning architecture network element deployment is simple, and only the positioning server and application server are deployed locally; while the core network architecture needs to rely on multiple network elements of the core network, such as: Access and Mobility Management Function (AMF) network element, Location Management Function (LMF) network element, Unified Data Management (UDM) network element, Gateway Mobile Location Centre (GMLC) network element, etc.

2. The local positioning architecture process interaction is simple and does not involve interaction between multiple network elements in the core network.

3. In the local positioning architecture, local data streams and positioning signaling streams are only transmitted locally and do not involve transmission over the large network, thus ensuring data security and low positioning latency.

In this embodiment, a positioning method running on the above-mentioned local positioning architecture is also provided. FIG. 2 is a flow chart of a positioning method based on a local architecture according to an embodiment of the present invention. As shown in FIG. 2 , the process includes the following steps:

Step S202: The positioning server receives a query location request or a subscription location request for the user equipment from the application server, wherein the positioning server is deployed locally;

Step S204: the positioning server sends a positioning request message for the user equipment to a base station according to the query location request or the subscription location request, and receives a positioning response message carrying a positioning result of the user equipment from the base station;

Step S206: The positioning server sends the positioning response message to the application server.

Before step S202 of this embodiment, the method further includes: establishing a stream control transmission protocol (SCTP) link for signaling interaction and a GPRS link for data interaction between the positioning server and the base station. GPRS Tunneling Protocol for the User plane (GTPU) link.

In an exemplary embodiment, after the SCTP link and the GTPU link are established between the positioning server and the base station, the method further includes: the positioning server receiving basic information of the user equipment reported by the base station.

In step S206 of this embodiment, when the positioning server receives a subscription location request from the application server, after the positioning server sends the positioning response message to the application server, it also includes: the positioning server receives a subscription location report for the user equipment from the base station, and sends the subscription location report to the application server.

In an exemplary embodiment, before the positioning server receives a query location request or a subscription location request for a user equipment from an application server, the method further includes: the application server receiving the query location request or the subscription location request from the user equipment.

In this embodiment, after the positioning server sends the positioning response message to the application server, the method further includes: the application server sending the positioning response to the user equipment.

In this embodiment, when the location server receives a subscription location request from the application server, after the application server sends the location response to the user equipment, the method further includes: the location server receives a subscription location report from the base station, and forwards the subscription location report to the user equipment through the application server;

In an exemplary embodiment, the method further includes: the positioning server sends a request message to the big data platform to obtain basic information of the user equipment, and receives a response message carrying the basic information of the user equipment from the big data platform.

Through the above steps, since it is based on a local architecture and does not rely on the deployment of core network positioning network elements, flexible deployment can be achieved locally; local data flows and positioning signaling flows are only transmitted locally and do not involve transmission in the large network, thus ensuring low latency in data transmission positioning. Therefore, it can solve the problems of complex network element deployment, cumbersome cross-network element process interaction, and large positioning latency in the core network-based positioning architecture, and achieve the effect of lightweight positioning.

FIG3 is a flow chart of a positioning method based on a local architecture according to another embodiment of the present invention. As shown in FIG3 , the process includes the following steps:

Step S302: The base station receives a location request message for the user equipment from a local positioning server, wherein the location request message is triggered by the positioning server receiving a query location request or a subscription location request from an application server.

Step S304: The base station sends a positioning response message carrying a positioning result of the user equipment to the positioning server, so that the positioning server sends the positioning response message to the application server.

Before step S302 of this embodiment, the method further includes: establishing a stream control transmission protocol SCTP link for signaling interaction and a GPRS user plane tunneling protocol GTPU link for data interaction between the base station and the positioning server.

In an exemplary embodiment, after the SCTP link and the GTPU link are established between the base station and the positioning server, the method further includes: the base station reporting basic information of the user equipment to the positioning server.

Through the above steps, due to the use of local positioning architecture, the base station can transmit signaling or data with the local positioning server and application server, so that local data does not leave the park, thereby ensuring the security of signaling and data and low latency of positioning, which is conducive to the diversification of application of positioning services.

Through the above description of the implementation mode, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, or by hardware, but in many cases the former is a better implementation mode. Based on this understanding, the technical solution of the present invention essentially or in other words contributes to the prior art. The disclosed part may be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory/random access memory (ROM/RAM), a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present invention.

In this embodiment, a positioning system based on a local architecture is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and/or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

FIG4 is a structural block diagram of a positioning system based on a local architecture according to an embodiment of the present invention. As shown in FIG4 , the system includes: a locally deployed positioning server 10, an application server 20 and a base station 30, wherein the positioning server 10 includes:

A receiving module 11 is configured to receive a query location request or a subscription location request for a user equipment from the application server;

An interaction module 12 is configured to send a positioning request message for the user equipment to a base station according to the query location request or the subscription location request, and receive a positioning response message carrying a positioning result of the user equipment from the base station;

The sending module 13 is configured to send the positioning response message to the application server.

In this embodiment, a stream control transmission protocol SCTP link for signaling interaction and a GPRS user plane tunneling protocol GTPU link for data interaction are established between the positioning server and the base station.

In an exemplary embodiment, the interaction module 12 is further configured to receive basic information of the user equipment reported by the base station.

FIG. 5 is a structural block diagram of a positioning system based on a local architecture according to an embodiment of the present invention. As shown in FIG. 5 , the system includes, in addition to all the modules shown in FIG. 4 , further includes:

The big data platform 40 is configured to provide the positioning server with a query interface for querying basic information of the user equipment.

In this embodiment, the application server is configured to initiate the query location request or the subscription location request to the positioning server, or forward the query location request or the subscription location request from the user equipment to the positioning server.

Through the above-mentioned embodiments of the present invention, since it is based on a local architecture and does not rely on the deployment of the core network positioning network element, flexible deployment can be achieved locally; local data flow and positioning signaling flow are only transmitted locally, and do not involve the transmission of the large network, thereby ensuring low latency in positioning of data transmission. Therefore, the problems of complex network element deployment, cumbersome cross-network element process interaction, and large positioning latency in the core network-based positioning architecture can be solved, achieving the effect of lightweight positioning.

It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

To facilitate the understanding of the technical solution provided by the present invention, a detailed description will be given below in conjunction with embodiments of specific scenarios.

The embodiment of the present invention provides a local positioning architecture, which is mainly composed of a base station, a local positioning server, an application server, and a big data platform, wherein the big data platform is optional. The positioning system based on the local positioning architecture can be applied to scenarios where local positioning servers are deployed, such as industrial parks, supermarkets, hospitals, etc., and can also customize some positioning-related applications, such as smart navigation, smart logistics, video surveillance, smart push, alarm prompts, etc.

In this embodiment, the base station and the local positioning server, as key network elements of the positioning system, need to work together to achieve positioning. Among them, the base station and the local positioning server need to support the following basic functions:

Support local data traffic diversion to ensure that local data does not leave the park;

Support capability exposure interface so that the positioning server can obtain basic information of user equipment (UE) and control the positioning process;

Supports positioning process interaction so that positioning signaling does not leave the campus.

FIG6 is a block diagram of a local positioning architecture according to an embodiment of the present invention. As shown in FIG6 , an SCTP link and a GTPU link are established between a base station (GNB) and a local positioning server, so that signaling and data can be transmitted. The following introduces the functional positioning of each network element in the local positioning architecture:

1. Base Station:

Supports the establishment of SCTP links and GTPU links with the positioning server, and supports data diversion and forwarding to the positioning server;

Support configuration capability open interface to realize UE information reporting, which can be realized through private interface or transmission of standard signaling (such as NG signaling, XN signaling) etc.

Supports positioning process triggered by local positioning server.

2. Local positioning server:

Supports the establishment of SCTP links and GTPU links with the positioning server, supports the data received from the base station to be forwarded to the positioning server, and performs Domain Name System (DNS) resolution to forward the data to the corresponding application server. If the data of a non-local application server is identified, it can still be forwarded to the large network (i.e., the User Plane Function (UPF) deployed in the core network);

Support the capability opening interface of base stations and maintain basic UE information;

Support mutual access with application servers, and open location query and subscription interfaces to application servers;

Supports initiating network-assisted positioning services for base stations;

Supports docking with big data platform to obtain UE information.

3. Application Server

Support the provision of positioning application services, including but not limited to smart navigation, smart logistics, video surveillance, smart push, and alarm prompts.

4. Big Data Platform:

Supports providing basic information of UE, including UE ID, base station where UE is located, etc.

The following describes in detail the positioning method based on the local positioning architecture according to the specific implementation scenario.

FIG. 7 is a flow chart of a link establishment interaction process between a base station and a local positioning server according to an embodiment of the present invention. As shown in FIG. 7 , the process includes the following steps:

Step S701: The base station and the local positioning server establish an SCTP link and an AP layer for signaling interaction.

Step S702: The base station and the local positioning server establish a GTPU link for data forwarding.

Step S703: The base station reports existing or incremental online UE basic information.

Step S704: The local positioning server sends a basic positioning information acquisition request to the base station.

Step S705: The base station responds to the basic positioning information acquisition request and exchanges basic positioning information with the local positioning server.

FIG8 is a flow chart of an application server initiating positioning according to an embodiment of the present invention. As shown in FIG8 , the process includes the following steps:

Step S801, the application server initiates a query or subscription location request to a local positioning server;

Step S802: After receiving the query or subscription location request, the local positioning server sends a positioning request to the base station;

Step S803: the base station interacts with the local positioning server in response to the positioning request;

Step S804: After the interaction between the local positioning server and the base station positioning process is completed, the local positioning server replies to the application server with a query or subscription location response.

If, in step S801, the application server initiates a subscription location request to the local positioning server, then steps S805-S806 are executed after step S804.

Step S805, the base station sends a positioning measurement report to the local positioning server;

Step S806: The local positioning server sends a positioning measurement report to the application server.

FIG. 9 is a flow chart of UE-initiated positioning according to an embodiment of the present invention. As shown in FIG. 9 , the process includes the following steps:

Step S901, the UE initiates a service request to the application server;

Step S902: After receiving the service request initiated by the UE, the application server initiates a query or subscription location request to the local positioning server;

Step S903, the positioning server sends a positioning request to the base station according to the query or subscription location request;

Step S904: the base station interacts with the local positioning server in response to the positioning request;

Step S905, after the interaction between the local positioning server and the base station positioning process is completed, the local positioning server replies to the application server with a query or subscription location response;

Step S906: The application server replies a service request response to the UE.

If, in step S902, the application server initiates a subscription location request to the local positioning server, then steps S907-S909 are executed after step S904;

Step S907, the base station sends a positioning measurement report to the local positioning server;

Step S908: The local positioning server sends a positioning measurement report to the application server.

Step S909: The application server sends a service refresh to the UE.

In this embodiment, if the local positioning server does not have the ability to obtain basic information of the UEID initiated by the application server, it is necessary to obtain it with the help of the big data platform. FIG10 is a flowchart of the deployment of the big data platform scenario to support the application server to initiate positioning according to an embodiment of the present invention. As shown in FIG10, the process includes the following steps:

Step S1001, the application server initiates a query or subscription location request to a local positioning server;

Step S1002: After receiving the query or subscription location request, the positioning server sends a UE information acquisition request to the big data platform;

Step S1003, the big data sends the UE information to the positioning server in response to the UE information acquisition request;

Step S1004: After receiving the UE information, the positioning server sends a positioning request to the base station;

Step S1005: the base station interacts with the positioning server in response to the positioning request;

Step S1006: After the interaction between the local positioning server and the base station positioning process is completed, the local positioning server replies to the application server with a query or subscription location response.

If, in step S1002, the application server initiates a subscription location request to the local positioning server, then steps S1007-S1008 are executed after step S1005;

Step S1007, the base station sends a positioning measurement report to the local positioning server;

Step S1008: The local positioning server sends a positioning measurement report to the application server.

FIG11 is a flow chart of supporting UE-initiated positioning in a deployment big data platform scenario according to an embodiment of the present invention. As shown in FIG11 , the process includes the following steps:

Step S1101, the UE initiates a service request to the application server;

Step S1102: After receiving the service request initiated by the UE, the application server initiates a query or subscription to the local positioning server. Read location request;

Step S1103: After receiving the query or subscription location request, the positioning server sends a UE information acquisition request to the big data platform;

Step S1104, the big data sends the UE information to the positioning server in response to the UE information acquisition request;

Step S1105: After receiving the UE information, the positioning server sends a positioning request to the base station;

Step S1106, the base station interacts with the positioning server in response to the positioning request;

Step S1107: After the interaction between the local positioning server and the base station positioning process is completed, the local positioning server replies to the application server with a query or subscription location response.

Step S1108: The application server replies a service response to the UE.

If, in step S1102, the application server initiates a subscription location request to the local positioning server, then steps S1109-S1111 are executed after step S1106;

Step S1109: The base station sends a positioning measurement report to the local positioning server.

Step S1110: The local positioning server sends a positioning measurement report to the application server.

Step S1111: After receiving the positioning measurement report, the application server sends a service refresh to the UE.

Specifically, the local positioning architecture of the embodiment of the present invention can be applied to places such as industrial parks, supermarkets, and hospitals where local positioning servers and application servers are deployed outside base stations.

For example, in a campus deployment scenario, the positioning of personnel, machines, and objects can be performed based on the local positioning architecture for intelligent navigation, area clocking in, and alarm prompts.

For example, smart navigation for users and accurate push of product information in supermarket scenarios;

For example, positioning the machine and guiding the route in hospital scenarios;

For example, vehicle positioning in underground parking scenarios.

Through the above steps of the embodiment of the present invention, the base station in the local positioning architecture can transmit signaling or data with the local positioning server and the application server, so that the local data does not leave the park, thereby ensuring the security of signaling and data and the low latency of positioning, which is conducive to the application diversification of positioning services; in addition, the local positioning architecture does not rely on the deployment of core network positioning network elements, and can be flexibly deployed locally. The local positioning server can be deployed on the base station or in the park outside the base station, which greatly reduces the enterprise's dependence on operators, is conducive to controlling operating costs, and promotes the upgrading of smart industries.

An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

In an exemplary embodiment, the above-mentioned computer-readable storage medium may include, but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

In an exemplary embodiment, the electronic device may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

Obviously, those skilled in the art should understand that the modules or steps of the above-mentioned embodiments of the present invention can be replaced by general The present invention may be implemented by a computing device, they may be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they may be implemented by a program code executable by a computing device, so that they may be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described may be performed in a different order than that herein, or they may be made into individual integrated circuit modules, or multiple modules or steps thereof may be made into a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

A positioning method based on a local architecture, comprising:

The positioning server receives a query location request or a subscription location request for a user equipment from an application server, wherein the positioning server is deployed locally;

The positioning server sends a positioning request message for the user equipment to a base station according to the query location request or the subscription location request, and receives a positioning response message carrying a positioning result of the user equipment from the base station;

The positioning server sends the positioning response message to the application server.
The method according to claim 1, wherein before the positioning server receives a query location request or a subscription location request for the user equipment from the application server, it also includes:

A stream control transmission protocol SCTP link for signaling interaction and a GPRS tunnel transmission protocol GTPU link for data interaction are established between the positioning server and the base station.
The method according to claim 2, wherein after establishing the SCTP link and the GTPU link between the positioning server and the base station, it also includes:

The positioning server receives the basic information of the user equipment reported by the base station.
The method according to claim 1, wherein, when the positioning server receives a subscription location request from the application server, after the positioning server sends the positioning response message to the application server, the method further comprises:

The positioning server receives a subscription location report for the user equipment from the base station, and sends the subscription location report to the application server.
The method according to claim 1, wherein before the positioning server receives a query location request or a subscription location request for the user equipment from the application server, the method further comprises:

The application server receives the query location request or the subscription location request from the user equipment.
The method according to claim 5, wherein, after the positioning server sends the positioning response message to the application server, it further comprises:

The application server sends the positioning response to the user equipment.
The method according to claim 6, wherein, when the positioning server receives a subscription location request from the application server, after the application server sends the positioning response to the user equipment, the method further comprises:

The positioning server receives a subscription location report from the base station, and forwards the subscription location report to the user equipment through the application server.
The method according to claim 1, further comprising:

The positioning server sends a request message for acquiring basic information of the user equipment to the big data platform, and receives a response message carrying the basic information of the user equipment from the big data platform.
A positioning method based on a local architecture, comprising:

The base station receives a positioning request message for the user equipment from a positioning server deployed locally, wherein the positioning request message is triggered by the positioning server receiving a query location request or a subscription location request from an application server;

The base station sends a positioning response message carrying a positioning result of the user equipment to the positioning server, so that the positioning server sends the positioning response message to the application server.
The method according to claim 9, wherein before the base station receives a positioning request message for the user equipment from a positioning server deployed locally, the method further comprises:

A stream control transmission protocol SCTP link for signaling interaction and a GPRS tunnel transmission protocol GTPU link for data interaction are established between the base station and the positioning server.
The method according to claim 10, wherein after establishing the SCTP link and the GTPU link between the base station and the positioning server, further comprising:

The base station reports the basic information of the user equipment to the positioning server.
A positioning system based on a local architecture includes a positioning server, an application server and a base station deployed locally, wherein the positioning server includes:

A receiving module, configured to receive a query location request or a subscription location request for a user equipment from the application server;

an interaction module, configured to send a positioning request message for the user equipment to a base station according to the query location request or the subscription location request, and receive a positioning response message carrying a positioning result of the user equipment from the base station;

The sending module is configured to send the positioning response message to the application server.
According to the system of claim 12, wherein a stream control transmission protocol (SCTP) link for signaling interaction and a GPRS tunnel transmission protocol (GTPU) link for data interaction are established between the positioning server and the base station.
The system according to claim 12, wherein:

The interaction module is further configured to receive basic information of the user equipment reported by the base station.
The system according to claim 12, further comprising:

The big data platform is configured to provide the positioning server with a query interface for querying basic information of the user equipment.
The system according to claim 12, wherein:

The application server is configured to initiate the query location request or the subscription location request to the positioning server, or forward the query location request or the subscription location request from the user equipment to the positioning server.
A computer-readable storage medium having a computer program stored therein, wherein when the computer program is executed by a processor, the computer program implements the steps of the method described in any one of claims 1 to 8, or implements the steps of the method described in any one of claims 9 to 11.
An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method described in any one of claims 1 to 8 or the steps of the method described in any one of claims 9 to 11 when executing the computer program.