Location service enhancement method, system and apparatus, and network device

Abstract

The present disclosure provides a location service enhancement method, system and apparatus, and a network device. The method comprises: a location service function acquires terminal-related information, or acquires the terminal-related information and reference station-related information, wherein the termina-related information comprises position information and a connection capability of a terminal, and the reference station-related information comprises position information and a connection capability of a reference station; and on the basis of the terminal-related information or on the basis of the terminal-related information and the reference station-related information, the location service function performs location solution to obtain location information of the terminal.

Description

Method, system, device and network equipment for enhancing positioning services

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410185914.3 filed in China on February 19, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the field of positioning technology, and in particular to a method, system, device, and network equipment for enhancing positioning services. Background Art

[0004] With the rapid development of smart devices, the demand for positioning functions is growing stronger and stronger, and the types of positioning services are becoming more and more diverse. Current positioning technologies mostly implement positioning services in mobile networks, which is not well adapted to fixed-mobile-satellite converged networks. Summary of the Invention

[0005] Embodiments of the present disclosure provide a method and system, apparatus, network device, computer program product, and computer-readable storage medium for enhancing positioning services.

[0006] The method for enhancing positioning services provided by the embodiments of the present disclosure includes:

[0007] The positioning service function obtains relevant information of the terminal or obtains relevant information of the terminal and relevant information of the reference station, wherein the relevant information of the terminal includes the location information and connection capability of the terminal, and the relevant information of the reference station includes the location information and connection capability of the reference station;

[0008] The positioning service function performs positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and the relevant information of the reference station to obtain the positioning information of the terminal.

[0009] The system for enhancing positioning services provided by the embodiments of the present disclosure includes: a terminal, a satellite-based core network, a ground-based core network, a satellite access network, a mobile access network, a fixed access network, and a reference station; the ground-based core network deploys a ground-based positioning service function, and the satellite-based core network deploys a satellite-based positioning service function; wherein,

[0010] The terminal is configured to send relevant information of the terminal to the satellite-based positioning service function via the satellite access network; and / or send relevant information of the terminal to the ground-based positioning service function via the fixed access network and / or the mobile access network;

[0011] The reference station is configured to send relevant information of the reference station to the satellite-based positioning service function via the satellite access network; and / or send relevant information of the reference station to the ground-based positioning service function via the fixed access network and / or the mobile access network;

[0012] The satellite-based positioning service function is configured to obtain, through the satellite access network, relevant information of the terminal or relevant information of the terminal and relevant information of the reference station; perform positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and relevant information of the reference station to obtain positioning information of the terminal;

[0013] The ground-based positioning service function is used to obtain relevant information of the terminal or relevant information of the terminal and relevant information of the reference station through the fixed access network and / or the mobile access network; perform positioning solution based on the relevant information of the terminal or based on the relevant information of the terminal and relevant information of the reference station to obtain the positioning information of the terminal.

[0014] The positioning service enhancement device provided by the embodiment of the present disclosure includes:

[0015] a communication unit, configured to obtain relevant information of the terminal or relevant information of the terminal and relevant information of the reference station, wherein the relevant information of the terminal includes the location information and connection capability of the terminal, and the relevant information of the reference station includes the location information and connection capability of the reference station;

[0016] A processing unit is configured to perform positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and the relevant information of the reference station to obtain positioning information of the terminal.

[0017] The network device provided by the embodiment of the present disclosure includes: a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform any of the above-mentioned methods for enhancing positioning services.

[0018] The computer program product provided by the embodiments of the present disclosure includes computer program instructions, which enable a computer to execute any one of the above-mentioned methods for enhancing positioning services.

[0019] The computer-readable storage medium provided by the embodiments of the present disclosure is used to store a computer program, wherein the computer program enables a computer to execute any one of the above-mentioned methods for enhancing positioning services.

[0020] The technical solution of the embodiments of the present disclosure provides a solution for enhancing positioning services in a fixed-mobile-satellite fusion network, introducing a new network function, namely a positioning service function. The positioning service function performs positioning solution based on relevant information of the terminal or based on relevant information of the terminal and relevant information of the base station to obtain the positioning information of the terminal. This positioning solution can be adapted to the fixed-mobile-satellite fusion network. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of a fixed-mobile-satellite converged network architecture;

[0022] Figure 2 is a schematic diagram of a 5G positioning related architecture;

[0023] FIG3 is an architecture diagram of a system for enhancing positioning services provided by an embodiment of the present disclosure;

[0024] FIG4 is an architecture of another system for enhancing positioning services provided by an embodiment of the present disclosure;

[0025] FIG5 is a flowchart of a method for enhancing positioning services provided by an embodiment of the present disclosure;

[0026] FIG6 is a second flow chart of a method for enhancing positioning services provided by an embodiment of the present disclosure;

[0027] FIG7 is a third flow chart of a method for enhancing positioning services provided by an embodiment of the present disclosure;

[0028] FIG8 is a schematic diagram of the structure of an apparatus for enhancing positioning services provided by an embodiment of the present disclosure;

[0029] FIG9 is a schematic structural diagram of a network device provided in an embodiment of the present disclosure;

[0030] FIG10 is a schematic structural diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without creative work are within the scope of protection of the present disclosure.

[0032] If similar descriptions of "first / second" appear in the application documents, the following explanation is added. In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific order for the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0033] It should be noted that, in the embodiments of the present disclosure, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a method or apparatus comprising a series of elements includes not only the elements explicitly stated, but also other elements not explicitly listed, or elements inherent to the implementation of the method or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other related elements (e.g., steps in the method or units in the apparatus) in the method or apparatus comprising the element.

[0034] It should be noted that, in the embodiments of the present disclosure, the term "and / or" merely describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, in the embodiments of the present disclosure, the character " / " generally indicates that the associated objects are in an "or" relationship.

[0035] In the description of the embodiments of the present disclosure, the term "corresponding" may indicate that there is a direct or indirect correspondence relationship between two things, or may indicate that there is an association relationship between the two things.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the art of the present disclosure. The terms used herein are only for the purpose of describing the embodiments of the present disclosure and are not intended to limit the present disclosure.

[0037] To facilitate understanding of the technical solutions of the embodiments of the present disclosure, the relevant technologies of the embodiments of the present disclosure are described below. The following relevant technologies are optional solutions that can be arbitrarily combined with the technical solutions of the embodiments of the present disclosure, and they all fall within the protection scope of the embodiments of the present disclosure.

[0038] With the rapid development of high-throughput satellite communication technologies and low-orbit satellite communication technologies, satellite network communication capabilities in terms of capacity, speed, latency, and reliability are continuously improving, enabling them to complement and synergize with terrestrial fixed and mobile networks. Fixed-mobile-satellite converged networks support the provision of voice, video, messaging, data, broadcast / multicast, international roaming, and overseas operations to multiple connected terminal users through one or more access methods: fixed, mobile, or satellite. These converged, multi-access networks, integrating space and ground, are widely considered by the industry to be one of the key architectural support technologies for enhancing 5G (5G-Advanced, 5G-A) and sixth-generation mobile communication technology (6G).

[0039] Figure 1 shows the fixed-mobile-satellite converged network architecture defined by the International Telecommunication Union-Telecommunication Standardization Sector (ITU-T). This architecture includes: multi-connection terminals, a fixed access network, a mobile access network, a satellite access network, a ground-based core network, a satellite-based core network, a ground-based service platform, a satellite-based service platform, a ground-based data network, and a satellite-based data network.

[0040] With the rapid development of smart terminals, the demand for positioning functions is becoming increasingly strong, and the types of positioning services are becoming increasingly diverse. Generally, terminal positioning is achieved through proprietary positioning systems and public positioning services. Proprietary positioning systems refer to terminals using the Global Navigation Satellite Systems (GNSS) positioning module to achieve terminal positioning. Public positioning services are generally provided by operators and use base stations to measure distance to achieve terminal positioning. Global Navigation Satellite System signals can be affected by buildings and the location environment, resulting in limitations in positioning range and accuracy.

[0041] Typically, satellite networks and global navigation satellite systems (GNSS) are used independently for communication and positioning. With the development of IMT-2020 and beyond, fixed access networks, mobile access networks, and satellite access networks are converging. This makes it possible to provide both communication and positioning services via satellite networks. This addresses situations where the GNSS system cannot provide reliable positioning services (e.g., poor GNSS signals, limited visible satellites), as well as situations in which restoring communication services and obtaining the location of survivors in natural disasters are crucial for assisting rescue operations. At the same time, with the help of satellites (e.g., low-orbit satellites) and network information, performance such as positioning accuracy can be improved.

[0042] Figure 2 shows the architecture for 5G positioning, as defined by the 3rd Generation Partnership Project (3GPP). This architecture includes the user equipment (UE), the 5G radio access network (RAN), and the 5G core network (CN). The network functions in the 5G core network include the access and mobility management function (AMF), the location management function (LMF), the network exposure function (NEF), the unified data repository (UDR), the application function (AF), the gateway mobile location center (GMLC), the location retrieval function (LRF), and the local resolution system (LRS) client.

[0043] Relying on the advantages of 5G basic network construction, operators can simultaneously deploy 5G positioning networks to realize a single network for communication and positioning, and provide 5G network communication and positioning services to third-party customers. As a positioning method, the terminal can actively send a sounding reference signal (SRS) to the network side, and the network side measures the SRS and calculates the position based on the measurement results. As another positioning method, the network side sends a positioning reference signal (PRS), and the terminal measures the PRS and feeds the measurement results back to the network side, and the network side calculates the position based on the measurement results. The specific implementation method of the network side performing position calculation based on the measurement results is as follows: the 5G wireless access network (such as a base station) measures the time of arrival (TOA) and / or reference signal receiving power (RSRP) of the signal sent by the terminal, and reports the measurement results to the 5G core network, which calculates the position based on the measurement results.

[0044] Current positioning technologies mostly implement positioning services in mobile networks (such as 5G mobile networks), which are not well adapted to fixed-mobile-satellite converged networks. Specifically, current positioning technologies are designed for terrestrial access networks (such as fixed access networks and mobile access networks). In fixed-mobile-satellite converged networks, terminals can access fixed access networks, mobile access networks, and satellite access networks. In some scenarios, the terminal may be unable to access the fixed access network and the mobile access network and can only access the satellite access network. In such scenarios, the current positioning technology cannot achieve high-precision positioning of the terminal, or even cannot achieve positioning of the terminal. Examples of scenarios here include: scenarios where the terrestrial access network (such as fixed access network and mobile access network) is inaccessible due to damage to ground infrastructure caused by natural disasters, geographical location, and other factors. In addition, current positioning technologies cannot provide different positioning methods according to different positioning accuracy requirements, and the positioning efficiency is low. To this end, the following technical solutions of the embodiments of the present disclosure are proposed.

[0045] To facilitate understanding of the technical solutions of the embodiments of the present disclosure, the technical solutions of the present disclosure are described in detail below through specific embodiments. The above related technologies can be combined with the technical solutions of the embodiments of the present disclosure as optional solutions, and all of them fall within the scope of protection of the embodiments of the present disclosure. The embodiments of the present disclosure include at least part of the following contents.

[0046] Embodiments of the present disclosure provide a system and method for implementing positioning service enhancement in a fixed-mobile-satellite converged network.

[0047] It should be noted that the "terminal" described in the embodiments of this disclosure is a "multi-connection terminal." Multi-connection terminals support access to two or three of the following networks: fixed access networks, mobile access networks, and satellite access networks. Fixed access networks and mobile access networks can be collectively referred to as terrestrial access networks. Unless otherwise specified, the terms "terminal" and "multi-connection terminal" in the embodiments of this disclosure can be used interchangeably.

[0048] It should be noted that the "reference station" described in the embodiments of the present disclosure is a "space-air-ground reference station." Unless otherwise specified, the reference station and space-air-ground reference station in the embodiments of the present disclosure can be used interchangeably.

[0049] It should be noted that the "third-party application" described in the embodiments of the present disclosure may also be described as a "third-party location application," or a "third-party application server," or an "application server," or a "location application server." That is, unless otherwise specified, the third-party application, third-party location application, third-party application server, application server, and location application server in the embodiments of the present disclosure may be used interchangeably.

[0050] It should be noted that the "positioning service enhancement system" described in the embodiments of the present disclosure can also be described as a "positioning service enhancement system implemented in a fixed-mobile-satellite converged network." The "positioning service enhancement system" described in the embodiments of the present disclosure can be applicable to, but is not limited to, IMT-2020 / 5G networks and IMT-2030 / 6G networks.

[0051] It should be noted that the "method for enhancing positioning services" described in the embodiments of the present disclosure can also be described as a "method for enhancing positioning services in a fixed-mobile-satellite converged network." The "method for enhancing positioning services" described in the embodiments of the present disclosure can be applicable to, but is not limited to, IMT-2020 / 5G networks and IMT-2030 / 6G networks.

[0052] FIG3 is an architecture diagram of a positioning service enhancement system provided by an embodiment of the present disclosure. As shown in FIG3 , the positioning service enhancement system includes: a terminal 10, a satellite-based core network 21, a ground-based core network 22, a satellite access network 31, a mobile access network 32, a fixed access network 33, and a reference station 40; wherein, the ground-based core network 22 deploys a ground-based positioning service function 221, and the satellite-based core network 21 deploys a satellite-based positioning service function 211; wherein:

[0053] The terminal 10 is configured to send information related to the terminal 10 to the satellite-based positioning service function 211 via the satellite access network 31; and / or to send information related to the terminal 10 to the ground-based positioning service function 221 via the fixed access network 33 and / or the mobile access network 32;

[0054] The reference station 40 is configured to send information related to the reference station 40 to the satellite-based positioning service function 211 via the satellite access network 31; and / or to send information related to the reference station 40 to the ground-based positioning service function 221 via the fixed access network 33 and / or the mobile access network 32;

[0055] The satellite-based positioning service function 211 is configured to obtain relevant information of the terminal 10 or relevant information of the terminal 10 and relevant information of the reference station 40 through the satellite access network 31; perform positioning calculation based on the relevant information of the terminal 10 or based on the relevant information of the terminal 10 and relevant information of the reference station 40 to obtain positioning information of the terminal 10;

[0056] The ground-based positioning service function 221 is used to obtain relevant information of the terminal 10 or relevant information of the terminal 10 and relevant information of the base station 40 through the fixed access network 33 and / or the mobile access network 32; perform positioning solution based on the relevant information of the terminal 10 or based on the relevant information of the terminal 10 and relevant information of the base station 40 to obtain the positioning information of the terminal 10.

[0057] In some embodiments, the positioning service enhancement system further includes: a satellite-based data network 51 and a ground-based data network 52, both of which deploy third-party applications; wherein:

[0058] The satellite-based positioning service function 211 is further configured to receive a positioning service request sent by the first network function; send a positioning service response to the first network function, the positioning service response carrying the positioning information of the terminal 10, and the positioning information of the terminal 10 is sent by the first network function to a third-party application on the satellite-based data network 51;

[0059] The ground-based positioning service function 221 is also used to receive a positioning service request sent by the first network function; send a positioning service response to the first network function, which carries the positioning information of the terminal 10, and the positioning information of the terminal 10 is sent by the first network function to a third-party application on the ground-based data network 52.

[0060] In some embodiments, the first network function is AMF.

[0061] In some embodiments, the positioning service enhancement system further includes: a satellite-based service platform 61 and a ground-based service platform 62; wherein:

[0062] The satellite-based positioning service function 211 is further configured to obtain registration information of the satellite access network 31 and / or the satellite-based core network 21 and / or the satellite-based service platform 61, where the registration information includes network capabilities and / or connection conditions, wherein the connection conditions include time conditions and / or space conditions;

[0063] The ground-based positioning service function 221 is also used to obtain registration information of the fixed access network 33 and / or the mobile access network 32 and / or the ground-based core network 22 and / or the ground-based service platform 62, and the registration information includes network capabilities.

[0064] In some embodiments, there is a satellite-ground service interface between the ground-based positioning service function 221 and the satellite-based positioning service function 211, which is used for location resource management and satellite-ground joint scheduling between the ground-based positioning service function 221 and the satellite-based positioning service function 211.

[0065] FIG4 is an architecture diagram of another positioning service enhancement system provided by an embodiment of the present disclosure. As shown in FIG4 , the positioning service enhancement system includes: a terminal, a quasi-base station, a fixed access network, a mobile access network, a satellite access network, a ground-based core network, a satellite-based core network, a ground-based service platform, a satellite-based service platform, a ground-based data network, and a satellite-based data network; wherein the ground-based positioning service function is deployed in the ground-based core network, the satellite-based positioning service function is deployed in the satellite-based core network, and third-party applications are deployed in both the ground-based data network and the satellite-based data network. The functions of the various logical units in the positioning service enhancement system are described below.

[0066] 1) Terminal:

[0067] The terminal supports reporting the terminal's location information and connection capabilities to the satellite-based positioning service function and / or the ground-based positioning service function.

[0068] In some implementations, the location information of the terminal is GNSS information of the terminal, such as latitude and longitude information.

[0069] In some implementations, the connection capability of the terminal includes the connection types supported by the terminal and / or the connection rate corresponding to each connection type supported by the terminal. For example, the connection types supported by the terminal include fixed access, mobile access, and satellite access.

[0070] 2) Base station:

[0071] The base station supports reporting the base station's location information and connection capabilities to the satellite-based positioning service function and / or the ground-based positioning service function.

[0072] In some implementations, the location information of the reference station is GNSS information of the reference station.

[0073] In some embodiments, the connection capability of the reference station includes the connection types supported by the reference station and / or the connection rate corresponding to each connection type supported by the reference station. For example, the connection types supported by the reference station include fixed access, mobile access, and satellite access.

[0074] 3) Fixed access network, mobile access network and satellite access network:

[0075] The fixed access network supports terminal access and connection to ground-based positioning services.

[0076] The mobile access network supports terminal access and connection to ground-based positioning services.

[0077] The satellite access network supports the access of terminals and supports the connection of satellite-based positioning service functions. The satellite access network must meet certain connection conditions to connect to the satellite-based positioning service function, and the connection conditions include time conditions and / or space conditions, that is, the satellite access network can only connect to the satellite-based positioning service function in a specific time period (i.e., time conditions) and / or a specific spatial range (i.e., spatial conditions). In some embodiments, the satellite access network determines the specific time period (i.e., time conditions) and / or the specific spatial range (i.e., spatial conditions) of the satellite node where the specific time period is located, based on the ephemeris information of the satellite node where it is located, in which the satellite-based positioning service function can be connected. Exemplarily, the specific time period can be represented by [t1, t2], where t1 represents the start time of the specific time period and t2 represents the end time of the specific time period. The specific spatial range can be represented by a longitude interval and a latitude interval.

[0078] 4) Ground-based core network and satellite-based core network:

[0079] The ground-based core network deploys the ground-based positioning service function, and the ground-based core network supports registering its network capabilities with the ground-based positioning service function.

[0080] The satellite-based core network deploys a satellite-based positioning service function. The satellite-based core network supports registering its network capabilities and connection conditions with the satellite-based positioning service function. The connection conditions include time conditions and / or space conditions, that is, the satellite-based core network can only connect to the satellite-based positioning service function in a specific time period (i.e., time conditions) and / or a specific spatial range (i.e., spatial conditions). In some embodiments, the satellite-based core network determines the specific time period (i.e., time conditions) and / or the specific spatial range (i.e., spatial conditions) of the satellite node where the satellite-based positioning service function is located based on the ephemeris information of the satellite node where the satellite-based core network is located, which can be connected to the satellite-based positioning service function. Exemplarily, the specific time period can be represented by [t1, t2], where t1 represents the start time of the specific time period and t2 represents the end time of the specific time period. The specific spatial range can be represented by a longitude interval and a latitude interval.

[0081] The satellite-based positioning service function and the ground-based positioning service function support two-way location resource management and satellite-ground joint scheduling through the "satellite-ground service interface".

[0082] 5) Ground-based business platform and satellite-based business platform:

[0083] The ground-based service platform supports registering its network capabilities with the ground-based positioning service function.

[0084] The satellite-based business platform supports registering its network capabilities and connection conditions with the satellite-based positioning service function. The connection conditions include time conditions and / or space conditions, that is, the satellite-based business platform can only connect to the satellite-based positioning service function in a specific time period (i.e., time conditions) and / or a specific spatial range (i.e., spatial conditions). In some embodiments, the satellite-based business platform determines the specific time period (i.e., time conditions) and / or the specific spatial range (i.e., spatial conditions) of the satellite node where the specific time period is located, which can be connected to the satellite-based positioning service function based on the ephemeris information of the satellite node where it is located. Exemplarily, the specific time period can be represented by [t1, t2], where t1 represents the start time of the specific time period and t2 represents the end time of the specific time period. The specific spatial range can be represented by a longitude interval and a latitude interval.

[0085] 6) Ground-based data network and satellite-based data network:

[0086] Third-party applications are deployed on the ground-based data network and / or satellite-based data network as needed, and select the ground-based positioning service function and / or satellite-based positioning service function to call the capabilities of the integrated network.

[0087] The technical solution of the embodiment of the present disclosure is designed with the following enhanced functions based on the above-mentioned positioning service enhanced system.

[0088] 1. Positioning service function

[0089] The positioning service function is deployed in the core network, including satellite-based positioning service functions and ground-based positioning service functions. Among them, the satellite-based positioning service function is deployed in the satellite-based core network, and the satellite-based positioning service function preferably processes positioning service requests for satellite access (i.e., on-board applications). The ground-based positioning service function is deployed in the ground-based core network, and the ground-based positioning service function preferably processes positioning service requests for fixed access and mobile access (i.e., ground-based applications). In some embodiments, it is possible to select whether to use the satellite-based positioning service function or the ground-based positioning service function to process the positioning service request based on the optimal terminal access method (e.g., minimum delay). The positioning service function includes the following functions:

[0090] 1) Positioning management function:

[0091] Positioning management functions include the overall coordination and scheduling of resources required to manage the location of terminals, including those registered with the network or accessing the network. For example, satellite-based and ground-based positioning services perform joint scheduling for delayed positioning service requests. Another example involves satellite-based and ground-based positioning services acquiring terminal location information or location assistance information.

[0092] 2) Positioning solution function:

[0093] The positioning solution function integrates multiple types of high-precision positioning algorithms and provides a configuration entry for importing base station planning information within a specific positioning area to achieve accurate position solution for the terminal.

[0094] 3) Mobile Positioning Center Gateway:

[0095] The mobile positioning center gateway is the node for external access to the network. Location service requests from third-party applications can access the mobile positioning center gateway directly or through capability exposure functions.

[0096] 4) Location privacy management function:

[0097] The location privacy management function includes the privacy management of third-party applications requesting location services, the privacy management of terminal location information, and the privacy management of terminal location auxiliary information.

[0098] 5) Positioning negotiation function:

[0099] The positioning negotiation function integrates the mechanism of network or terminal triggering positioning negotiation, and can provide different availability positioning methods according to different positioning accuracy requirements (or service requirements).

[0100] 2. Connection conditions for satellite-based positioning services

[0101] The connection conditions of the satellite-based positioning service function include time conditions and / or space conditions for connecting to the satellite-based positioning service function. The satellite access network, satellite-based business platform and satellite-based core network determine the specific time period (i.e., time condition) and / or the specific spatial range (i.e., spatial condition) of the satellite node where the satellite-based positioning service function is connected based on the ephemeris information of the satellite node where they are located. Exemplarily, the specific time period can be represented by [t1, t2], where t1 represents the start time of the specific time period and t2 represents the end time of the specific time period. The specific spatial range can be represented by a longitude interval and a latitude interval.

[0102] It should be noted that the satellite nodes where the satellite access network, satellite-based service platform and satellite-based core network are located can be different or the same.

[0103] For example, the satellite access network is located at satellite node 1, the satellite-based service platform is located at satellite node 2, and the satellite-based core network is located at satellite node 3. Satellite-based positioning service functions are deployed on the satellite-based core network. Based on the ephemeris information of satellite nodes 1 and 3, the satellite access network can determine the specific time period during which the satellite access network can connect to the satellite-based positioning service function and / or the specific spatial range of the satellite nodes within which this specific time period occurs. Similarly, based on the ephemeris information of satellite nodes 2 and 3, the satellite-based service platform can determine the specific time period during which the satellite-based service platform can connect to the satellite-based positioning service function and / or the specific spatial range of the satellite nodes within which this specific time period occurs.

[0104] 3. Negotiation mechanism for positioning methods triggered by the network or terminal under different positioning accuracy requirements

[0105] Within the positioning service function, the positioning negotiation function can implement a positioning method negotiation mechanism triggered by the network or the terminal. In this positioning method negotiation mechanism, different positioning methods can be provided based on different positioning accuracy requirements. For example, Table 1 below provides a positioning method table. As can be seen, different positioning methods correspond to different positioning accuracies. It should be noted that Table 1 below is only an example description. The positioning method table is not limited to the following three methods and can also include fewer than three or more than three methods.

[0106] Table 1: Positioning method table

[0107] After receiving the positioning service request, the positioning service function selects the corresponding positioning method in the positioning party publication according to the positioning accuracy requirement information. In some embodiments, the positioning service function selects the corresponding positioning method in the positioning party publication according to the positioning accuracy requirement information and the positioning conditions. Specifically, first, the positioning service function searches for a matching positioning method in the positioning party publication according to the positioning conditions (such as terminal-based implementation, terminal-assisted core network-based implementation, access network node-assisted, etc.) to form a method sublist; secondly, the positioning service function searches for the positioning method that is closest to the positioning accuracy requirement in the method sublist according to the positioning accuracy requirement information as the target positioning method. Further, optionally, the positioning service function can notify the terminal and / or access network node of the target positioning method through the AMF, so that the terminal and / or access network node performs the positioning operation according to the target positioning method.

[0108] The technical solution of the embodiment of the present disclosure designs the following enhanced process based on the above-mentioned positioning service enhanced system.

[0109] FIG5 is a flow chart of a method for enhancing positioning services provided by an embodiment of the present disclosure. As shown in FIG5 , the method for enhancing positioning services includes:

[0110] Step 501: The positioning service function obtains relevant information of the terminal or obtains relevant information of the terminal and relevant information of the reference station. The relevant information of the terminal includes the location information and connection capability of the terminal, and the relevant information of the reference station includes the location information and connection capability of the reference station.

[0111] In some implementations, the location information of the terminal is GNSS information of the terminal, such as latitude and longitude information.

[0112] In some implementations, the connection capability of the terminal includes the connection types supported by the terminal and / or the connection rate corresponding to each connection type supported by the terminal. For example, the connection types supported by the terminal include fixed access, mobile access, and satellite access.

[0113] In some implementations, the location information of the reference station is GNSS information of the reference station.

[0114] In some embodiments, the connection capability of the reference station includes the connection types supported by the reference station and / or the connection rate corresponding to each connection type supported by the reference station. For example, the connection types supported by the reference station include fixed access, mobile access, and satellite access.

[0115] The positioning service function includes a satellite-based positioning service function and / or a ground-based positioning service function, wherein the satellite-based positioning service function is deployed in a satellite-based core network, and the ground-based positioning service function is deployed in a ground-based core network. In some embodiments, the satellite-based positioning service function obtains terminal-related information or obtains terminal-related information and reference station-related information through a satellite access network. In some embodiments, the ground-based positioning service function obtains terminal-related information or obtains terminal-related information and reference station-related information through a fixed access network and / or a mobile access network.

[0116] Step 502: The positioning service function performs positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and the relevant information of the reference station to obtain the positioning information of the terminal.

[0117] In some implementations, before step 501 , the location service function receives a location service request sent by the first network function.

[0118] In some implementations, after step 502, the location service function sends a location service response to the first network function, the location service response carrying the terminal's location information. Further, the terminal's location information is sent by the first network function to the third-party application.

[0119] In some implementations, the positioning service request carries positioning accuracy requirement information; the positioning service function determines the target positioning method based on the positioning accuracy requirement information.

[0120] In one example, the positioning service function can search for a matching positioning method based on the positioning accuracy requirement information based on Table 1 above, and use it as the target positioning method. In some embodiments, the positioning service function selects a corresponding positioning method from the positioning party publication based on the positioning accuracy requirement information and the positioning conditions. Specifically, first, the positioning service function searches for a matching positioning method from the positioning party publication based on the positioning conditions (such as terminal-based implementation, terminal-assisted core network implementation, access network node-assisted, etc.) to form a method sublist; second, the positioning service function searches for a positioning method that is closest to the positioning accuracy requirement in the method sublist based on the positioning accuracy requirement information, and uses it as the target positioning method.

[0121] In some embodiments, the positioning service function sends first information to the first network function, where the first information is used to indicate a target positioning method. Furthermore, optionally, the first network function notifies the terminal and / or the reference station of the target positioning method; wherein the target positioning method is used by the terminal to perform a positioning operation to obtain the terminal's location information, and the target positioning method is used by the reference station to perform a positioning operation to obtain the reference station's location information.

[0122] The above-mentioned first network function can be but is not limited to AMF.

[0123] It should be noted that the positioning service functions described in the embodiments of the present disclosure include satellite-based positioning service functions and / or ground-based positioning service functions, wherein the satellite-based positioning service functions are deployed in the satellite-based core network, and the ground-based positioning service functions are deployed in the ground-based core network. The above steps can be implemented using the satellite-based positioning service functions and / or the ground-based positioning service functions.

[0124] In some embodiments, the satellite-based positioning service function obtains registration information of the satellite access network and / or the satellite-based core network and / or the satellite-based service platform, where the registration information includes network capabilities and / or connection conditions, where the connection conditions include time conditions and / or space conditions.

[0125] In one example, the satellite access network, the satellite-based service platform, and the satellite-based core network determine the specific time period (i.e., time condition) and / or the specific spatial range (i.e., spatial condition) of the satellite node where the satellite-based positioning service function is located based on the ephemeris information of the satellite node where they are located. Exemplarily, the specific time period can be represented by [t1, t2], where t1 represents the start time of the specific time period and t2 represents the end time of the specific time period. The specific spatial range can be represented by a longitude interval and a latitude interval. When registering with the satellite-based positioning service function, the satellite access network, the satellite-based service platform, and the satellite-based core network can provide the satellite-based positioning service function with its connection conditions through registration information.

[0126] In some embodiments, the satellite-based positioning service function obtains registration information of the fixed access network and / or the mobile access network and / or the ground-based core network and / or the ground-based service platform, where the registration information includes network capabilities.

[0127] This disclosure proposes a solution for enhancing positioning services in a converged fixed-mobile-satellite network. On the one hand, it supports the positioning of multiple access terminals. When the base network (e.g., fixed access network, mobile access network) is damaged or fails, the terminal can be positioned via the satellite-based network (e.g., satellite access network, satellite-based core network, satellite-based service platform, satellite-based data network). On the other hand, it provides corresponding positioning methods based on different positioning accuracy requirements, making positioning more efficient. Accordingly, it supports a positioning method negotiation mechanism that allows network or terminal triggering.

[0128] FIG6 is a second flow chart of a method for enhancing positioning services provided by an embodiment of the present disclosure. As shown in FIG6 , the method for enhancing positioning services includes:

[0129] Step 601: The network initiates a terminal positioning service request.

[0130] Here, the triggering event for the network to initiate the terminal location service request may be, but is not limited to, a regulatory service event. For example, the regulatory service event may be an emergency call event.

[0131] Step 602: AMF sends a location service request to the location service function.

[0132] The positioning service function here may be a satellite-based positioning service function deployed in a satellite-based core network, or may be a ground-based positioning service function deployed in a ground-based core network.

[0133] Step 603-1: The terminal sends its GNSS information and connection capability to the positioning service function via the satellite access network.

[0134] Step 603-2: The base station sends the GNSS information and connection capability of the base station to the positioning service function via the satellite access network.

[0135] Step 603-3: The positioning service function selects a positioning solution algorithm, performs high-precision positioning solution based on the GNSS information and connection capability of the terminal and the GNSS information and connection capability of the reference station, and obtains the positioning information of the terminal.

[0136] Step 604: The location service function sends a location service response to the AMF, which carries the location information of the terminal.

[0137] Step 605: AMF sends the terminal's location information to the third-party application.

[0138] The third-party application here can be deployed on a satellite-based data network or a ground-based data network.

[0139] Step 606: The network releases the service bearer.

[0140] FIG7 is a third flow chart of a method for enhancing positioning services provided by an embodiment of the present disclosure. As shown in FIG7 , the method for enhancing positioning services includes:

[0141] Step 701: The network initiates a terminal positioning service request.

[0142] Here, the triggering event for the network to initiate the terminal location service request may be, but is not limited to, a regulatory service event. For example, the regulatory service event may be an emergency call event.

[0143] Step 702: AMF sends a positioning service request to the positioning service function, and the positioning service request carries positioning accuracy requirement information.

[0144] The positioning service function here may be a satellite-based positioning service function deployed in a satellite-based core network, or may be a ground-based positioning service function deployed in a ground-based core network.

[0145] Step 703: The terminal sends the GNSS information and connection capability of the terminal to the positioning service function via the satellite access network.

[0146] Step 704: The positioning service function searches for a matching positioning method in the positioning method table according to the positioning accuracy requirement information and the connection capability of the terminal, and uses the matching positioning method as the target positioning method.

[0147] Step 705: The positioning service function sends the target positioning method indication information to the AMF. Optionally, the AMF sends the target positioning method indication information to the terminal and / or the reference station via the satellite access network.

[0148] Step 706 - 1 : The base station sends the GNSS information and connection capability of the base station to the positioning service function via the satellite access network.

[0149] This step is optional.

[0150] Step 706: The positioning service function selects a positioning solution algorithm, performs high-precision positioning solution based on the terminal's GNSS information and connection capability (optionally, also based on the reference station's GNSS information and connection capability), and obtains the terminal's positioning information.

[0151] Step 707: The location service function sends a location service response to the AMF, which carries the location information of the terminal.

[0152] Step 708: AMF sends the terminal's location information to the third-party application.

[0153] The third-party application here can be deployed on a satellite-based data network or a ground-based data network.

[0154] Step 709: The network releases the service bearer.

[0155] FIG8 is a schematic diagram of the structure of a positioning service enhancement device provided by an embodiment of the present disclosure, which is applied to the positioning service enhancement function. As shown in FIG8 , the positioning service enhancement device includes:

[0156] The communication unit 801 is configured to obtain relevant information of a terminal or relevant information of a terminal and relevant information of a reference station, wherein the relevant information of the terminal includes the location information and connection capability of the terminal, and the relevant information of the reference station includes the location information and connection capability of the reference station;

[0157] The processing unit 802 is configured to perform positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and the relevant information of the reference station to obtain positioning information of the terminal.

[0158] In some implementations, the communication unit 801 is further configured to receive a positioning service request sent by the first network function.

[0159] In some implementations, the communication unit 801 is further configured to send a positioning service response to the first network function, where the positioning service response carries the positioning information of the terminal, and the positioning information of the terminal is sent by the first network function to a third-party application.

[0160] In some embodiments, the positioning service request carries positioning accuracy requirement information;

[0161] The processing unit 802 is further configured to determine a target positioning method based on the positioning accuracy requirement information;

[0162] The communication unit 801 is further configured to send first information to the first network function, where the first information is used to indicate the target positioning method.

[0163] In some embodiments, the target positioning method is notified to the terminal and / or the reference station by the first network function; wherein, the target positioning method is used by the terminal to perform a positioning operation to obtain the location information of the terminal, and the target positioning method is used by the reference station to perform a positioning operation to obtain the location information of the reference station.

[0164] In some embodiments, the positioning service function includes a satellite-based positioning service function and / or a ground-based positioning service function, wherein the satellite-based positioning service function is deployed in a satellite-based core network, and the ground-based positioning service function is deployed in a ground-based core network.

[0165] In some embodiments, corresponding to the satellite-based positioning service function, the communication unit 801 is also used to obtain registration information of the satellite access network and / or the satellite-based core network and / or the satellite-based service platform, and the registration information includes network capabilities and / or connection conditions, and the connection conditions include time conditions and / or space conditions.

[0166] In some embodiments, corresponding to the ground-based positioning service function, the communication unit 801 is further used to obtain registration information of the fixed access network and / or mobile access network and / or ground-based core network and / or ground-based service platform, and the registration information includes network capabilities.

[0167] In some embodiments, corresponding to the satellite-based positioning service function, the communication unit 801 is further configured to obtain relevant information of the terminal or obtain relevant information of the terminal and relevant information of the reference station through a satellite access network.

[0168] In some embodiments, corresponding to the ground-based positioning service function, the communication unit 801 is further configured to obtain relevant information of the terminal or obtain relevant information of the terminal and relevant information of the reference station through a fixed access network and / or a mobile access network.

[0169] In some embodiments, the terminal is a multi-connection terminal, and the networks supported by the multi-connection terminal for access include two or three of a fixed access network, a mobile access network, and a satellite access network.

[0170] Those skilled in the art will appreciate that the functions implemented by each unit in the device for enhancing location services shown in FIG8 can be understood with reference to the relevant description of the aforementioned method. The functions of each unit in the device for enhancing location services shown in FIG8 can be implemented by a program running on a processor or by a specific logic circuit.

[0171] Figure 9 is a schematic structural diagram of a network device 900 provided in an embodiment of the present disclosure. The network device 900 shown in Figure 9 includes a processor 910, which can call and run a computer program from a memory to implement the method in the embodiment of the present disclosure.

[0172] Optionally, as shown in Figure 9, the network device 900 may further include a memory 920. The processor 910 may call and execute a computer program from the memory 920 to implement the method in the embodiment of the present disclosure.

[0173] The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

[0174] Optionally, as shown in FIG9 , the network device 900 may further include a transceiver 930 , and the processor 910 may control the transceiver 930 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0175] The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include an antenna, and the number of antennas may be one or more.

[0176] The network device 900 can implement the corresponding processes of the various methods of the embodiments of the present disclosure, which will not be described here for the sake of brevity.

[0177] Figure 10 is a schematic structural diagram of a chip according to an embodiment of the present disclosure. The chip 1000 shown in Figure 10 includes a processor 1010, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present disclosure.

[0178] Optionally, as shown in FIG10 , the chip 1000 may further include a memory 1020. The processor 1010 may call and execute a computer program from the memory 1020 to implement the method in the embodiment of the present disclosure.

[0179] The memory 1020 may be a separate device independent of the processor 1010 , or may be integrated into the processor 1010 .

[0180] Optionally, the chip 1000 may further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0181] Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0182] The chip can implement the corresponding processes in each method of the embodiments of the present disclosure, and for the sake of brevity, they will not be described here in detail.

[0183] It should be understood that the chip mentioned in the embodiments of the present disclosure can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0184] It should be understood that the processor of the embodiments of the present disclosure may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above-mentioned method embodiment can be completed by hardware integrated logic circuits in the processor or by software instructions. The above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present disclosure can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present disclosure can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above-mentioned method.

[0185] It is understood that the memory in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0186] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present disclosure may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present disclosure are intended to include, but are not limited to, these and any other suitable types of memories.

[0187] The present disclosure also provides a computer-readable storage medium for storing a computer program that enables a computer to execute the corresponding processes in the various methods of the present disclosure. Detailed description thereof will be omitted for brevity.

[0188] The present disclosure also provides a computer program product including computer program instructions. The computer program instructions enable a computer to execute the corresponding processes in the various methods of the present disclosure, which will not be described in detail here for the sake of brevity.

[0189] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0190] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0191] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0192] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0193] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0194] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0195] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for enhancing positioning services, comprising: The positioning service function obtains relevant information of the terminal or obtains relevant information of the terminal and relevant information of the reference station, wherein the relevant information of the terminal includes the location information and connection capability of the terminal, and the relevant information of the reference station includes the location information and connection capability of the reference station; The positioning service function performs positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and the relevant information of the reference station to obtain the positioning information of the terminal.

2. The method according to claim 1, wherein Before the positioning service function performs positioning solution based on the relevant information of the terminal or based on the relevant information of the terminal and the relevant information of the reference station, the method further includes: The positioning service function receives a positioning service request sent by the first network function.

3. The method according to claim 2, wherein: After the positioning service function performs positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and the relevant information of the reference station, the method further includes: The positioning service function sends a positioning service response to the first network function, where the positioning service response carries the positioning information of the terminal, and the positioning information of the terminal is sent by the first network function to the third-party application.

4. The method according to claim 2, wherein: The positioning service request carries positioning accuracy requirement information; the method further includes: The positioning service function determines a target positioning method based on the positioning accuracy requirement information; The positioning service function sends first information to the first network function, where the first information is used to indicate the target positioning method.

5. The method according to claim 4, wherein The target positioning method is notified to the terminal and / or the reference station by the first network function; wherein, the target positioning method is used by the terminal to perform a positioning operation to obtain the location information of the terminal, and the target positioning method is used by the reference station to perform a positioning operation to obtain the location information of the reference station.

6. The method according to any one of claims 1 to 5, wherein The positioning service function includes a satellite-based positioning service function and / or a ground-based positioning service function, wherein the satellite-based positioning service function is deployed in a satellite-based core network, and the ground-based positioning service function is deployed in a ground-based core network.

7. The method according to claim 6, further comprising: The satellite-based positioning service function obtains registration information of the satellite access network and / or the satellite-based core network and / or the satellite-based service platform, where the registration information includes network capabilities and / or connection conditions, and the connection conditions include time conditions and / or space conditions.

8. The method according to claim 6, further comprising: The ground-based positioning service function obtains registration information of a fixed access network and / or a mobile access network and / or a ground-based core network and / or a ground-based service platform, wherein the registration information includes network capabilities.

9. The method according to claim 6, wherein: The positioning service function obtains the relevant information of the terminal or obtains the relevant information of the terminal and the relevant information of the reference station, including: The satellite-based positioning service function obtains the relevant information of the terminal or obtains the relevant information of the terminal and the relevant information of the reference station through a satellite access network; and / or, The ground-based positioning service function obtains the relevant information of the terminal or obtains the relevant information of the terminal and the relevant information of the reference station through a fixed access network and / or a mobile access network.

10. The method according to any one of claims 1 to 5, wherein The terminal is a multi-connection terminal, and the networks supported by the multi-connection terminal for access include two or three of a fixed access network, a mobile access network, and a satellite access network.

11. A system for enhancing positioning services, the system comprising: Terminals, satellite-based core networks, ground-based core networks, satellite access networks, mobile access networks, fixed access networks, and reference stations; The ground-based core network deploys ground-based positioning service functions, and the satellite-based core network deploys satellite-based positioning service functions; wherein, The terminal is configured to send relevant information of the terminal to the satellite-based positioning service function via the satellite access network; and / or send relevant information of the terminal to the ground-based positioning service function via the fixed access network and / or the mobile access network; The reference station is configured to send relevant information of the reference station to the satellite-based positioning service function via the satellite access network; and / or send relevant information of the reference station to the ground-based positioning service function via the fixed access network and / or the mobile access network; The satellite-based positioning service function is configured to obtain, through the satellite access network, relevant information of the terminal or relevant information of the terminal and relevant information of the reference station; perform positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and relevant information of the reference station to obtain positioning information of the terminal; The ground-based positioning service function is used to obtain relevant information of the terminal or relevant information of the terminal and relevant information of the reference station through the fixed access network and / or the mobile access network; perform positioning solution based on the relevant information of the terminal or based on the relevant information of the terminal and relevant information of the reference station to obtain the positioning information of the terminal.

12. The system according to claim 11, further comprising: A satellite-based data network and a ground-based data network, wherein both the ground-based data network and the satellite-based data network deploy third-party applications; The satellite-based positioning service function is further configured to receive a positioning service request sent by a first network function; send a positioning service response to the first network function, the positioning service response carrying the positioning information of the terminal, and the positioning information of the terminal being sent by the first network function to a third-party application on the satellite-based data network; The ground-based positioning service function is also used to receive a positioning service request sent by the first network function; send a positioning service response to the first network function, the positioning service response carries the positioning information of the terminal, and the positioning information of the terminal is sent by the first network function to a third-party application on the ground-based data network.

13. The system according to claim 11, further comprising: Satellite-based business platform and ground-based business platform; The satellite-based positioning service function is further configured to obtain registration information of the satellite access network and / or the satellite-based core network and / or the satellite-based service platform, where the registration information includes network capabilities and / or connection conditions, and the connection conditions include time conditions and / or space conditions; The ground-based positioning service function is further used to obtain registration information of the fixed access network and / or the mobile access network and / or the ground-based core network and / or the ground-based service platform, and the registration information includes network capabilities.

14. The system according to any one of claims 11 to 13, wherein: A satellite-ground service interface is provided between the ground-based positioning service function and the satellite-based positioning service function, and the satellite-ground service interface is used for performing location resource management and satellite-ground joint scheduling between the ground-based positioning service function and the satellite-based positioning service function.

15. A positioning service enhancement device, comprising: a communication unit, configured to obtain relevant information of the terminal or relevant information of the terminal and relevant information of the reference station, wherein the relevant information of the terminal includes the location information and connection capability of the terminal, and the relevant information of the reference station includes the location information and connection capability of the reference station; A processing unit is configured to perform positioning calculation based on the relevant information of the terminal or based on the relevant information of the terminal and the relevant information of the reference station to obtain positioning information of the terminal.

16. A network device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 10.

17. A computer program product comprising computer program instructions, the computer program instructions causing a computer to execute the method according to any one of claims 1 to 10.

18. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 10.

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