WO2024065495A1

WO2024065495A1 - Position indication method and apparatus, device, and storage medium

Info

Publication number: WO2024065495A1
Application number: PCT/CN2022/122858
Authority: WO
Inventors: 李小龙
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2024-04-04

Abstract

The present application relates to the field of mobile communications, and discloses a position indication method and apparatus, a device, and a storage medium. The method comprises: a terminal receives first position information sent by a core network device, wherein the first position information comprises at least one of ephemeris information, instruction information or second position information of an access network device, the second position information is position information of the access network device at different moments, and the instruction information is used for instructing the terminal to determine the position of the access network device on the basis of the ephemeris information or the second position information, and the first position information is used for positioning the terminal. According to the solution provided by embodiments of the present application, the terminal can determine the position of the access network device according to the obtained first position information, and the terminal is positioned according to the determined position of the access network device, such that the access network device can position the terminal even in a moving process, and the positioning accuracy is improved.

Description

Position indication method, device, equipment and storage medium

Technical Field

The present application relates to the field of mobile communications, and in particular to a location indication method, device, equipment and storage medium.

Background technique

In the mobile communication system, a variety of positioning technologies are introduced to locate the position of the terminal. Specifically, the access network device can report the fixed location information of the access network device itself to the LMF (Location Management Function) network element, so that the LMF network element or the terminal can locate the terminal based on the location information of the access network device. However, since the location of the access network device may move, a new solution for locating the terminal based on the mobile location is urgently needed.

Summary of the invention

The embodiment of the present application provides a location indication method, device, equipment and storage medium, which ensures that the access network equipment can locate the terminal even when it is moving, thereby improving the accuracy of positioning. The technical solution is as follows:

According to one aspect of the present application, a location indication method is provided, the method being executed by a terminal, the method comprising:

Receive first location information sent by a core network device, where the first location information includes at least one of ephemeris information, indication information or second location information of an access network device, where the second location information is location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information; the first location information is used to locate the terminal.

According to another aspect of the present application, a location indication method is provided, the method being performed by a core network device, the method comprising:

Receive first location information sent by an access network device, where the first location information includes at least one of ephemeris information, indication information or second location information of the access network device, where the second location information is location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.

According to another aspect of the present application, a location indication method is provided, the method being performed by an access network device, the method comprising:

Send first location information to a core network device, where the first location information includes at least one of ephemeris information, indication information or second location information of the access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.

According to another aspect of the present application, a position indicating device is provided, the device comprising:

A receiving module is used to receive first location information sent by a core network device, where the first location information includes at least one of ephemeris information, indication information or second location information of an access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information; the first location information is used to locate the terminal.

A receiving module is used to receive first location information sent by an access network device, where the first location information includes at least one of ephemeris information, indication information or second location information of the access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.

A sending module is used to send first location information to a core network device, where the first location information includes at least one of the ephemeris information, indication information or second location information of the access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.

According to another aspect of the present application, a terminal is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the location indication method as described above.

According to another aspect of the present application, an access network device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement a location indication method as described above.

According to another aspect of the present application, a communication system is provided, which includes a terminal and an access network device, wherein the terminal is used to implement the location indication method as described in the above aspects, and the access network device is used to implement the location indication method as described in the above aspects.

According to another aspect of the present application, a computer-readable storage medium is provided, in which an executable program code is stored. The executable program code is loaded and executed by a processor to implement the position indication method as described above.

According to another aspect of the present application, a chip is provided, which includes a programmable logic circuit and/or program instructions. When the chip runs on a terminal or an access network device, it is used to implement the location indication method as described above.

According to another aspect of the present application, a computer program product is provided. When the computer program product is executed by a processor of a terminal or an access network device, it is used to implement the location indication method of the above aspect.

In the solution provided in the embodiment of the present application, the terminal can determine the position of the access network device based on the acquired first position information, and locate the terminal based on the determined position of the access network device, ensuring that the access network device can locate the terminal even when it is moving, thereby improving the accuracy of positioning.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application;

FIG2 shows a block diagram of another communication system provided by an exemplary embodiment of the present application;

FIG3 shows a block diagram of another communication system provided by an exemplary embodiment of the present application;

FIG4 shows a flow chart of a location indication method provided by an exemplary embodiment of the present application;

FIG5 shows a flow chart of a location indication method provided by an exemplary embodiment of the present application;

FIG6 shows a flow chart of a location indication method provided by an exemplary embodiment of the present application;

FIG7 shows a block diagram of a position indicating device provided by an exemplary embodiment of the present application;

FIG8 shows a block diagram of another position indicating device provided by an exemplary embodiment of the present application;

FIG9 shows a block diagram of a position indicating device provided by an exemplary embodiment of the present application;

FIG10 shows a block diagram of another position indicating device provided by an exemplary embodiment of the present application;

FIG11 shows a block diagram of a position indicating device provided by an exemplary embodiment of the present application;

FIG12 shows a block diagram of another position indicating device provided by an exemplary embodiment of the present application;

FIG. 13 shows a schematic diagram of the structure of a communication device provided by an exemplary embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements when the following description refers to the drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and/or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

It should be understood that, although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, for example, the word "if" used herein may be interpreted as "at the time of" or "when" or "in response to determining".

It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

The following is an explanation of the application scenarios of this application:

Please refer to Fig. 1, which shows a block diagram of a communication system provided by an exemplary embodiment of the present application. The communication system 100 may include: a terminal device 10 and a network device, wherein the network device may include at least one of an access network device 20 and a core network device 30.

The terminal device 10 may refer to a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station (MS), a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent or a user device. Optionally, the terminal device 10 may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in the fifth generation mobile communication system (5th Generation System, 5GS) or a terminal device in the future evolved public land mobile communication network (Public Land Mobile Network, PLMN), etc., and the embodiments of the present application are not limited to this. For the convenience of description, the above-mentioned devices are collectively referred to as terminal devices. The number of terminal devices 10 is usually multiple, and one or more terminal devices 10 may be distributed in a cell managed by each access network device 20 .

The access network device 20 is a device deployed in the access network to provide wireless communication functions for the terminal device 10. The access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with access network device functions may be different. For example, in the 5G NR system, it is called gNodeB or gNB. With the evolution of communication technology, the name "access network device" may change. For the convenience of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal device 10 are collectively referred to as access network devices. Optionally, through the access network device 20, a communication relationship can be established between the terminal device 10 and the core network device 21. Exemplarily, in a Long Term Evolution (LTE) system, the access network device 20 may be an Evolved Universal Terrestrial Radio Access Network (EUTRAN) or one or more eNodeBs in EUTRAN; in a 5G NR system, the access network device 20 may be a Radio Access Network (RAN) or one or more gNBs in RAN.

Exemplarily, each access network device 20 includes one or more transmission reference points (TRP), each TRP can be called a positioning node, and the terminal device receives the downlink positioning signal sent by the positioning node, and measures and reports the downlink positioning signal.

The core network device 21 is a device deployed in the core network. The functions of the core network device 21 are mainly to provide user connection, user management, and service bearing, and to provide an interface to the external network as a bearer network. For example, the core network device in the 5G NR system may include an access and mobility management function (AMF) network element, a user plane function (UPF) network element, and a session management function (SMF) network element.

Exemplarily, the core network device 21 in the embodiment of the present application may include a location management function network element. Optionally, the location management function network element includes a location server (location server), and the location server can be implemented as any of the following: LMF, E-SMLC (Enhanced Serving Mobile Location Centre), SUPL (Secure User Plane Location), SUPL SLP (SUPL Location Platform).

In one example, the access network device 20 and the core network device 21 communicate with each other through some air interface technology, such as the NG interface in the 5G NR system. The access network device 20 and the terminal device 10 communicate with each other through some air interface technology, such as the Uu interface.

The "5G NR system" in the embodiment of the present application may also be referred to as a 5G system or an NR system, but those skilled in the art may understand its meaning. The technical solution described in the embodiment of the present application may be applicable to a 5G NR system or to a subsequent evolution system of the 5G NR system.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (Advanced Long Term Evolution) system, three-year Long Term Evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based access to Unlicensed spectrum (LTE-U) system, NR-U system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next generation communication system or other communication systems, etc.

In some embodiments, the communication system shown in Figure 1 is applied to an NTN (Non-terrestrial Network) network architecture. For example, as shown in Figure 2, the NTN network architecture includes a terminal 10, a transfer device 30 and a ground station 40.

Among them, the transfer device 30 and the ground station 40 can be understood as the access network device 20 in the above embodiment, and the access network device 20 includes a control module for providing gNB functions. The transfer device 30 and the ground station 40 communicate through a feeder link to form an NTN service link issuance system. In addition, the transfer device 30 and the ground station 40 are controlled by an NTN control module, which is connected to a control module for providing gNB functions. The terminal 10 communicates with the transfer device 30 through NR-Uu (a communication interface), and the control module for providing gNB functions communicates with the 5GC network through NG (a communication interface).

In the embodiment of the present application, if a signal needs to be sent to the terminal 10 , the signal is first sent to the transfer device 30 and the ground station 40 , and the transfer device 30 and the ground station 40 then forward the received signal to the terminal 10 .

Optionally, the transfer device 30 may be a satellite, a drone, or other device with a transfer function, which is not limited in the embodiments of the present application.

In some embodiments, the transfer device 30 may include multiple transfer devices, each of which manages at least one cell, that is, the transfer device 30 needs to configure the parameter configuration of each cell for the terminal. For details, please refer to the following embodiments.

For example, the transfer device 30 is a satellite. In the embodiment shown in Figure 3, satellite 1 and satellite 2 are connected to the gNB functional module through a satellite gateway, that is, satellite 1 and satellite 2 use the same parameter configuration to configure cells for the terminal, so the same parameter configuration can be used in the cells managed by satellite 1 and satellite 2.

Alternatively, in addition to that shown in FIG3 , satellite 1 and satellite 2 are connected to the Gnb functional module through two satellite network managements respectively, that is, satellite 1 and satellite 2 use different parameter configurations.

It should be noted that the NTN network architecture shown in FIG. 2 or FIG. 3 is only for illustration, and the present application is not limited to the network architecture shown in FIG. 2 or FIG. 3 , and other types of network structures are also applicable.

FIG4 shows a flow chart of a location indication method provided by an exemplary embodiment of the present application, which can be exemplarily applied to the terminal and core network device shown in FIG1 , and the method includes at least part of the following contents:

Step 401: The access network device sends first location information to the core network device, where the first location information includes at least one of the ephemeris information, indication information or second location information of the access network device, the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.

Step 402: The core network device receives the first location information sent by the access network device.

Step 403: The core network device sends the first location information to the terminal.

Step 404: The terminal receives first location information sent by the core network device, where the first location information is used to locate the terminal.

The ephemeris information of the access network device is used to indicate the location of the access network device. In some embodiments, the access network device is applied to the NTN system, the access network device includes a satellite, and the ephemeris information of the access network device is actually the ephemeris information of the satellite.

In some embodiments, the access network device includes a satellite, and the ephemeris information includes at least one of the following: orbital information of the satellite, and PVT (Position Velocity Time) information of the satellite. The orbital information of the satellite indicates the orbit occupied by the satellite during operation, so the position of the satellite can be determined by the orbital information. The PVT information of the satellite indicates the position, speed and time of the satellite during operation, and the position of the satellite can also be determined based on the PVT information.

The indication information indicates that the terminal determines the location of the access network device based on the ephemeris information or the second location information. In some embodiments, if the first location information includes the ephemeris information of the access network device, the terminal can determine the location of the access network device based on the ephemeris information of the access network device according to the indication information. Alternatively, the terminal can also obtain the ephemeris information of the access network device through other means, such as by receiving the ephemeris information broadcast by the access network device, and the terminal determines the location of the access network device based on the indication information using the ephemeris information.

In other embodiments, if the first location information includes the second location information of the access network device, the terminal can determine the location of the access network device based on the second location information of the access network device according to the indication information. Alternatively, the terminal can also obtain the second location information of the access network device through other means, such as the second location information broadcast by the access network device, and the terminal determines the location of the access network device based on the indication information using the second location information.

The state of the access network device may be a moving state, so the access network device may be in different positions at different times. The access network device sends second position information to represent its position at different times, and the terminal can determine its position at different times based on the second position information.

It should be noted that the second location information in the embodiment of the present application can indicate multiple locations, that is, the second location information can be multiple.

In addition, the first location information may include any of the following:

(1) Ephemeris information of access network equipment.

(2) Instruction information.

(3) Second location information.

(4) Ephemeris information and indication information of access network equipment.

(5) Ephemeris information and second location information of access network equipment.

(6) Ephemeris information, indication information and second location information of access network equipment.

In an embodiment of the present application, an access network device sends first location information to a core network device, and the core network device sends the received first location information to a terminal. After the terminal receives the first location information sent by the core network device, the terminal can determine the location of the access network device based on the first location information, and then locate the terminal based on the location of the access network device to determine the location of the terminal.

In some embodiments, the core network device is an LMF network element, or other network element, which is not limited in the embodiments of the present application.

It should be noted that the embodiments of the present application include the first location information sent by the access network device to the core network device, and also include the first location information sent by the core network device to the terminal. In some embodiments, the first location information sent by the first access network device to the core network device is the same as the first location information sent by the core network device to the terminal. In some embodiments, the first location information sent by the first access network device to the core network device is different from the first location information sent by the core network device to the terminal. For example, the first location information sent by the first access network device to the core network device includes ephemeris information, and the first location information sent by the core network device to the terminal includes ephemeris information and indication information. For another example, the first location information sent by the first access network device to the core network device includes ephemeris information and second location information, and the first location information sent by the core network device to the terminal includes ephemeris information and indication information. The above description is for illustrative purposes only, and the embodiments of the present application are not limited to this.

It should be noted that the steps executed by the terminal in the embodiment of the present application can independently form a new embodiment, the steps executed by the access network device can independently form a new embodiment, and the steps executed by the core network device can also independently form a new embodiment.

The embodiment shown in FIG4 illustrates the terminal obtaining the first location information. Furthermore, the terminal actively requests to obtain the first location information. For example, referring to FIG5, FIG5 shows a flowchart of a location indication method provided by an exemplary embodiment of the present application, which can be exemplarily applied to the terminal and core network device shown in FIG1, and the method includes at least part of the following contents:

Step 501: The terminal sends a first request to a core network device, where the first request is used to request to obtain first location information.

Step 502: The core network device receives a first request sent by a terminal.

Step 503: The core network device sends first location information to the terminal in response to the first request.

Step 504: The terminal receives the first location information sent by the core network device.

In an embodiment of the present application, the terminal can actively obtain the first location information of the access network device, and the terminal can send a first request to the core network device to request the first location information. After the core network device receives the first request, it can return the first location information to the terminal according to the first request.

In some embodiments, the function of the first request is to obtain first location information. After the core network device receives the first request, the core network device independently determines the content included in the first location information returned to the terminal.

In other embodiments, the function of the first request is to specify the content to be obtained, that is, to specify the content included in the first location information. After the core network device receives the first request, the core network device returns the first location information to the terminal according to the content specified by the first request.

For example, if the first request indicates to obtain the ephemeris information of the access network device, the core network device returns the ephemeris information of the access network device to the terminal based on the first request, and if the first request indicates to obtain the second location information of the access network device, the core network device returns the second location information of the access network device to the terminal.

In some embodiments, the first request also includes time information, and the time information indicates that the first location information corresponding to the time information needs to be obtained.

It should be noted that in the embodiment of the present application, data is transmitted between the terminal and the core network device via LPP (Long Term Evolution Positioning Protocol) messages. In other words, the data transmitted between the terminal and the core network device are all carried in LPP message transmission.

For example, the data transmitted in steps 501-504 in the present application are all sent by LPP messages.

Optionally, the core network device sends the first location information to the terminal through an LPP message (LPP provide assistance information, LPP location request message), and the terminal can receive the first location information sent by the core network device through LPP provide assistance information.

For example, if the core network device is an LMF network element, the LMF network element sends the first location information to the terminal through LPP provide assistance information. When the terminal receives the LPP provide assistance information sent by the LMF network element, it can determine that the first location information is received.

In the solution provided in the embodiment of the present application, the terminal obtains the first location information of the core network device by sending a request to the core network device, so that the terminal can be positioned according to the first location information, ensuring that the access network device can locate the terminal even when it is moving, thereby improving the accuracy of positioning.

It should be noted that the embodiment of the present application is described by taking the example of a terminal obtaining the first location information through a request. In another embodiment, a solution is provided in which a core network device directly provides the first location information to the terminal.

The core network device sends the first location information to the terminal. In an embodiment of the present application, the core network device can obtain the first location information. After obtaining the first location information, the core network device can send the first location information to the terminal so that the terminal can receive the first location information.

In some embodiments, the core network device sends the first location information to the terminal through an LPP message (LPP provide assistance information, LPP location request message). For the terminal, the terminal receives the first location information by receiving the LPP message (LPP provide assistance information, LPP location request message).

For example, if the core network device is an LMF network element, the LMF network element sends the first location information to the terminal through LPP provide assistance information. For the terminal, the terminal receives the first location information by receiving the LPP provide assistance information sent by the LMF network element.

The embodiment shown in FIG4 illustrates that the core network device can obtain the first location information. Furthermore, the core network device also requests the access network device to send the first location information. For example, referring to FIG6, FIG6 shows a flowchart of a location indication method provided by an exemplary embodiment of the present application, which can be exemplarily applied to the access network device and the core network device shown in FIG1, and the method includes at least part of the following contents:

Step 601: The core network device sends a second request to the access network device, where the second request is used to request to obtain first location information.

Step 602: The access network device receives a second request sent by the core network device.

Step 603: The access network device sends the first location information to the core network device.

Step 604: The core network device receives the first location information sent by the access network device.

In an embodiment of the present application, the core network device needs to obtain the first location information of the access network device, and the core network device needs to send a second request to the access network device, indicating the need to obtain the first location information. After the access network device receives the second request, it can determine that the first location information needs to be sent. The access network device responds to the second request and sends the first location information to the core network device. The core network device receives the first location information sent by the access network device.

In some embodiments, the function of the second request is to obtain the first location information. After the access network device receives the second request, the access network device determines on its own the content included in the first location information returned to the terminal.

In other embodiments, the function of the second request is to specify the content to be obtained, that is, to specify the content included in the first location information. After the access network device receives the second request, the access network device returns the first location information to the core network device according to the content specified by the second request.

For example, if the second request indicates to obtain the ephemeris information of the access network device, the access network device returns the ephemeris information of the access network device to the core network device based on the second request, and if the second request indicates to obtain the second location information of the access network device, the access network device returns the second location information of the access network device to the core network device.

In some embodiments, the second request also includes time information, and the time information indicates that the first location information corresponding to the time information needs to be obtained.

It should be noted that in the embodiment of the present application, data is transmitted between the access network device and the core network device via NRPPa (New Radio Positioning Protocol) messages. In other words, data transmitted between the access network device and the core network device are all carried in NRPPa message transmission.

For example, the data transmitted in steps 601-604 in the present application are all sent by NRPPa messages.

Optionally, the core network device requests the first location information from the access network device through an NRPPa message (TRP INFORMATION REQUEST, transmission receiving point information request), and the access network device returns the first location information to the core network device through an NRPPa message (TRP INFORMATION RESPONSE) based on the TRP INFORMATION REQUEST (transmission receiving point information response) sent by the core network device.

For example, the core network device is an LMF network element, and the access network device is a TRP or a gNB. In an embodiment of the present application, the LMF network element sends a TRP INFORMATION REQUEST to the TRP/gNB to request the first location information. After the TRP/gNB receives the TRP INFORMATION REQUEST sent by the LMF network element, it sends a TRP INFORMATION RESPONSE to the LMF network element to inform the first location information.

In the solution provided in the embodiment of the present application, the core network device obtains the first location information of the access network device by sending a request to the access network device, so as to return the first location information to the terminal. The terminal performs positioning according to the first location information, thereby ensuring that the access network device can locate the terminal even when it is moving, thereby improving the accuracy of positioning.

It should be noted that the embodiment of the present application is described by taking the core network device obtaining the first location information through a request as an example. In another embodiment, a solution is provided in which the access network device directly provides the first location information to the core network device.

The access network device sends the first location information to the core network device. In the embodiment of the present application, the access network device can obtain the first location information corresponding to itself, and the access network device can also actively provide its first location information to the core network device so that the core network device can receive the first location information.

In some embodiments, the access network device sends the first location information to the core network device via an NRPPa message (TRP INFORMATION RESPONSE). As for the core network device, the core network device receives the first location information sent by the access network device by receiving the NRPPa message (TRP INFORMATION RESPONSE).

For example, if the core network device is an LMF network element, the access network device LMF network element sends the first location information to the LMF network element via TRP INFORMATION RESPONSE. For the LMF network element, the LMF network element receives the first location information by receiving the TRP INFORMATION RESPONSE sent by the access network device.

The embodiment shown in FIG4 illustrates that the terminal can obtain the first location information. Furthermore, the terminal also performs positioning based on the first location information. Specifically, in the embodiment of the present application, the terminal determines the location of the access network device indicated by the first location information, and then performs positioning based on the location of the access network device indicated by the first location information.

In some embodiments, the terminal can use positioning technologies such as DL-TDOA (Down Link Time Difference of Arrival) and DL-AOD (Down Link Angle-of-Departure) to locate the terminal.

It should be noted that the present application embodiment is described by taking the terminal for positioning as an example. In another embodiment, the terminal may also determine the location of the access network device according to the first location information.

In the embodiment of the present application, the first location information acquired by the terminal includes only indication information, indicating that other information is not included. The terminal can determine the location of the access network device in any of the following ways:

The first type: determining the location of the access network device based on ephemeris information, wherein the location of the access network device is determined by location information of the access network device at different times determined by the ephemeris information.

In an embodiment of the present application, the first location information only includes indication information, and the indication information indicates that the location of the access network device is determined based on ephemeris information.

Optionally, the ephemeris information is used to indicate the trajectory of the access network device. Therefore, the location information of the access network device at different times can be determined based on the ephemeris information, and then the location of the access network device can be determined based on the location information of the access network device at different times.

In some embodiments, the ephemeris information is information broadcast by the access network device, and the terminal can receive the ephemeris information broadcast by the access network device. Alternatively, the terminal can also obtain the ephemeris information of the access network device in other ways, which is not limited in the embodiments of the present application.

In some embodiments, the first location information includes ephemeris information, and the terminal can determine the location of the access network device based on the ephemeris information by default.

Optionally, when the terminal determines that the first location information does not include the second location information, the terminal determines the location of the access network device based on the ephemeris information by default.

The second method: determining the location of the access network device based on the second location information.

In an embodiment of the present application, the first location information only includes indication information, and the indication information indicates the location of the access network device determined based on the second location information.

The second location information is used to indicate the location of the access network device at different times, so the terminal can directly determine the location of the access network device according to the second location information.

In some embodiments, the second location information is information broadcast by the access network device, and the terminal can receive the second location information broadcast by the access network device. Alternatively, the terminal can also obtain the second location information of the access network device in other ways, which is not limited in the embodiments of the present application.

In some embodiments, the first location information includes second location information, and the terminal can determine the location of the access network device based on the second location information by default.

Optionally, when the terminal determines that the first location information does not include ephemeris information, the terminal determines the location of the access network device based on the second location information by default.

In the solution provided in the embodiment of the present application, the terminal locates the terminal according to the received first location information, ensuring that the access network device can locate the terminal even when it is moving, thereby improving the accuracy of positioning.

It should be noted that the above embodiment is described by taking the terminal performing positioning based on the first location information as an example. In another embodiment, the core network device can also perform positioning based on the first location information. Then the core network device performs positioning based on the first location information. Specifically, in an embodiment of the present application, the core network device determines the location of the access network device indicated by the first location information, and then performs positioning based on the location of the access network device indicated by the first location information.

In some embodiments, the core network equipment can use DL-TDOA (Down Link Time Difference of Arrival), DL-AOD (Down Link Angle-of-Departure), UL-TDOA (Up Link Time Difference of Arrival), UL-AOA (Up Link Angle-of-Departure) and other positioning technologies to locate the core network equipment.

It should be noted that the embodiment of the present application is described by taking the core network device for positioning as an example. In another embodiment, the core network device can also determine the location of the access network device according to the first location information.

In the embodiment of the present application, the first location information acquired by the core network device only includes indication information, indicating that no other information is included, and the core network device determines the location of the access network device based on the ephemeris information.

In some embodiments, the ephemeris information is information broadcast by the access network device, and the core network device can receive the ephemeris information broadcast by the access network device. Alternatively, the core network device can also obtain the ephemeris information of the access network device in other ways, which is not limited in the embodiments of the present application.

In some embodiments, the first location information includes ephemeris information, and the core network device can determine the location of the access network device based on the ephemeris information by default.

Optionally, when the core network device determines that the first location information does not include the second location information, the core network device determines the location of the access network device based on the ephemeris information by default.

In the solution provided in the embodiment of the present application, the core network device positions the core network device according to the received first location information, ensuring that the access network device can locate the core network device even when it is moving, thereby improving the accuracy of positioning.

It should be noted that the above-mentioned embodiments can be split into new embodiments, or combined with other embodiments to form new embodiments. This application does not limit the combination between the embodiments.

FIG. 7 shows a block diagram of a position indicating device provided by an exemplary embodiment of the present application. Referring to FIG. 7 , the device includes:

The receiving module 701 is used to receive the first location information sent by the core network device, where the first location information includes at least one of the ephemeris information, indication information or second location information of the access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information; the first location information is used to locate the terminal.

In some embodiments, the access network device includes a satellite, and the ephemeris information includes at least one of the following:

Orbital information of the satellite;

The satellite's position, velocity, time, PVT information.

In some embodiments, referring to FIG8 , the apparatus further comprises:

The sending module 702 is used to send a first request to the core network device, where the first request is used to request to obtain the first location information, and the core network device is used to send the first location information in response to the first request.

In some embodiments, data is transmitted between the core network device and the terminal via LPP messages.

In some embodiments, referring to FIG8 , the device further comprises:

The positioning module 703 is used to locate the terminal based on the first position information.

In some embodiments, the first location information only includes the indication information. Referring to FIG. 8 , the apparatus further includes:

A positioning module 703 determines the position of the access network device based on the ephemeris information, wherein the position of the access network device is determined by the position information of the access network device at different times determined by the ephemeris information; or

The location of the access network device is determined based on the second location information.

It should be noted that the device provided in the above embodiment, when implementing its functions, only uses the division of the above functional modules as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and their specific implementation process is detailed in the method embodiment, which will not be repeated here.

FIG9 shows a block diagram of a position indicating device provided by an exemplary embodiment of the present application. Referring to FIG9 , the device includes:

The receiving module 901 is used to receive first location information sent by an access network device, where the first location information includes at least one of ephemeris information, indication information or second location information of the access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.

Orbital information of the satellite;

The satellite's position, velocity, time, PVT information.

In some embodiments, the receiving module 901 is further used to receive a first request sent by the terminal, where the first request is used to request to obtain the first location information.

In some embodiments, referring to FIG. 10 , the device further comprises:

The sending module 902 is configured to send the first location information to the terminal in response to the first request.

In some embodiments, the apparatus further comprises:

The sending module 902 is used to send a second request to the access network device, where the second request is used to request to obtain the first location information.

In some embodiments, data is transmitted between the core network device and the access network device via NRPPa messages.

FIG. 11 shows a block diagram of a position indicating device provided by an exemplary embodiment of the present application. Referring to FIG. 11 , the device includes:

The sending module 1101 is used to send first location information to a core network device, where the first location information includes at least one of the ephemeris information, indication information or second location information of the access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.

Orbital information of the satellite;

The satellite's position, velocity, time, PVT information.

In some embodiments, referring to FIG. 12 , the device further comprises:

The receiving module 1102 is used to receive a second request sent by a core network device, where the second request is used to request to obtain the first location information.

FIG13 shows a schematic diagram of the structure of a communication device provided by an exemplary embodiment of the present application. The communication device includes: a processor 1301 , a receiver 1302 , a transmitter 1303 , a memory 1304 and a bus 1305 .

The processor 1301 includes one or more processing cores. The processor 1301 executes various functional applications and information processing by running software programs and modules.

The receiver 1302 and the transmitter 1303 may be implemented as a communication component, which may be a communication chip.

The memory 1304 is connected to the processor 1301 via a bus 1305 .

The memory 1304 may be used to store at least one program code, and the processor 1301 may be used to execute the at least one program code to implement each step in the above method embodiment.

In addition, the communication device may be a terminal or an access network device. The memory 1304 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, and a programmable read-only memory (PROM).

In an exemplary embodiment, a computer-readable storage medium is further provided, wherein an executable program code is stored in the computer-readable storage medium, and the executable program code is loaded and executed by a processor to implement the location indication method performed by a communication device provided by each of the above method embodiments.

In an exemplary embodiment, a chip is provided, which includes a programmable logic circuit and/or program instructions. When the chip runs on a terminal or an access network device, it is used to implement the location indication method provided in each method embodiment.

In an exemplary embodiment, a communication system is provided, which includes a terminal, an access network device and a core network device, the terminal is used to implement the location indication method as described above, the access network device is used to implement the location indication method as described above, and the core network device is used to implement the location indication method as described above.

In an exemplary embodiment, a computer program product is provided. When the computer program product is executed by a processor of a terminal or an access network device, it is used to implement the location indication method provided by each of the above method embodiments.

A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

A location indication method, characterized in that the method is executed by a terminal, and the method comprises:

Receive first location information sent by a core network device, where the first location information includes at least one of ephemeris information, indication information or second location information of an access network device, where the second location information is location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information; the first location information is used to locate the terminal.
The method according to claim 1, wherein the access network device comprises a satellite, and the ephemeris information comprises at least one of the following:

Orbital information of the satellite;

The satellite's position, velocity, time, PVT information.
The method according to claim 1 or 2, characterized in that the method further comprises:

A first request is sent to the core network device, where the first request is used to request to obtain the first location information, and the core network device is used to send the first location information in response to the first request.
The method according to any one of claims 1 to 3 is characterized in that data is transmitted between the core network device and the terminal via a Long Term Evolution Positioning Protocol (LPP) message.
The method according to any one of claims 1 to 4, characterized in that the method further comprises:

The terminal is positioned based on the first location information.
The method according to any one of claims 1 to 4, characterized in that the first location information only includes the indication information, and the method further comprises:

Determine the location of the access network device based on the ephemeris information, wherein the location of the access network device is determined by location information of the access network device at different times determined by the ephemeris information; or,

The location of the access network device is determined based on the second location information.
A location indication method, characterized in that the method is performed by a core network device, and the method comprises:

Receive first location information sent by an access network device, where the first location information includes at least one of ephemeris information, indication information or second location information of the access network device, where the second location information is location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.
The method according to claim 7, wherein the access network device comprises a satellite, and the ephemeris information comprises at least one of the following:

Orbital information of the satellite;

The satellite's position, velocity, time, PVT information.
The method according to claim 7 or 8, characterized in that the method further comprises:

A first request sent by the terminal is received, where the first request is used to request to obtain the first location information.
The method according to claim 9, characterized in that the method further comprises:

The first location information is sent to the terminal in response to the first request.
The method according to any one of claims 7 to 10, characterized in that the method further comprises:

A second request is sent to the access network device, where the second request is used to request to obtain the first location information.
The method according to claim 11 is characterized in that data is transmitted between the core network device and the access network device via a New Radio Positioning Protocol NRPPa message.
A location indication method, characterized in that the method is performed by an access network device, and the method comprises:

Sending first location information to a core network device, the first location information including at least one of ephemeris information, indication information or second location information of the access network device, the second location information being location information of the access network device at different times, and the indication information being used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.
The method according to claim 13, wherein the access network device comprises a satellite, and the ephemeris information comprises at least one of the following:

Orbital information of the satellite;

The satellite's position, velocity, time, PVT information.
The method according to claim 13 or 14, characterized in that the method further comprises:

Receive a second request sent by the core network device, where the second request is used to request to obtain the first location information.
The method according to any one of claims 13 to 15 is characterized in that data is transmitted between the core network device and the access network device via NRPPa messages.
A position indicating device, characterized in that the device comprises:

A receiving module is used to receive first location information sent by a core network device, where the first location information includes at least one of ephemeris information, indication information or second location information of an access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information; the first location information is used to locate the terminal.
A position indicating device, characterized in that the device comprises:

A receiving module is used to receive first location information sent by an access network device, where the first location information includes at least one of ephemeris information, indication information or second location information of the access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.
A position indicating device, characterized in that the device comprises:

A sending module is used to send first location information to a core network device, where the first location information includes at least one of the ephemeris information, indication information or second location information of the access network device, where the second location information is the location information of the access network device at different times, and the indication information is used to instruct the terminal to determine the location of the access network device based on the ephemeris information or the second location information.
A terminal, characterized in that the terminal comprises:

processor;

a transceiver connected to the processor;

The processor is configured to load and execute executable instructions to implement the position indication method as described in any one of claims 1 to 6.
An access network device, characterized in that the access network device comprises:

processor;

a transceiver connected to the processor;

The processor is configured to load and execute executable instructions to implement the position indication method as described in any one of claims 7 to 12.
A core network device, characterized in that the core network device comprises:

processor;

a transceiver connected to the processor;

The processor is configured to load and execute executable instructions to implement the position indication method as described in any one of claims 13 to 16.
A communication system, characterized in that the communication system includes a terminal, an access network device and a core network device, the terminal is used to implement the location indication method as described in any one of claims 1 to 6, the access network device is used to implement the location indication method as described in any one of claims 7 to 12, and the core network device is used to implement the location indication method as described in any one of claims 13 to 16.
A computer-readable storage medium, characterized in that executable program code is stored in the readable storage medium, and the executable program code is loaded and executed by a processor to implement the position indication method as described in any one of claims 1 to 16.