Positioning method, terminal, server, apparatus and storage medium

Abstract

The present disclosure relates to a positioning method, a terminal, a server, an apparatus and a storage medium. The method comprises: determining to trigger a positioning request, and sending a first message to a server, wherein the first message comprises information of a network device; and receiving a first satellite ephemeris determined by the server on the basis of the first message, wherein the first satellite ephemeris is an ephemeris of a satellite currently visible to a terminal. By means of acquiring a first satellite ephemeris from a server, the present disclosure eliminates the problem of the terminal positioning stability being poor due to an ephemeris broadcast anomaly of a satellite in a certain galaxy, and also expands existing positioning methods for a terminal positioning chip, thereby reducing the impact of a chip algorithm anomaly on terminal positioning.

Description

Positioning method, terminal, server, device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a positioning method, a terminal, a server, a device, and a storage medium. Background Art

[0002] Most devices are equipped with the Global Navigation Satellite System (GNSS), which relies on a positioning chip. Current chip algorithms use all visible satellites to calculate position, improving accuracy. However, abnormalities in the ephemeris broadcast by a particular constellation of satellites or in the positioning chip algorithm can result in the device being unable to locate or experiencing poor stability.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a positioning method, a terminal, a server, a device, and a storage medium.

[0005] In a first aspect, an embodiment of the present disclosure provides a positioning method, which is performed by a terminal. The method includes:

[0006] Determine to trigger a positioning request, and send a first message to the server, where the first message includes information about the network device;

[0007] Receive first satellite ephemeris determined by the server according to the first message, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0008] In a second aspect, an embodiment of the present disclosure provides a positioning method, which is executed by a server and includes:

[0009] receiving a first message, the first message including information of a network device; the first message being determined by the terminal to trigger generation of a positioning request;

[0010] A first satellite ephemeris is determined according to the first message, and the first satellite ephemeris is sent to the terminal, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0011] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0012] Transceiver module: used to determine the triggering location request and send a first message to the server, where the first message includes information about the network device;

[0013] Receive first satellite ephemeris determined by the server according to the first message, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0014] In a fourth aspect, an embodiment of the present disclosure provides a server, including:

[0015] Transceiver module: used to receive a first message, the first message including information of the network device; the first message is determined by the terminal to trigger the generation of a positioning request;

[0016] A first satellite ephemeris is determined according to the first message, and the first satellite ephemeris is sent to the terminal, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0017] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0018] one or more processors;

[0019] The terminal is used to execute the positioning method described in any one of the first aspects of the embodiments of this disclosure.

[0020] In a sixth aspect, an embodiment of the present disclosure provides a server, including:

[0021] one or more processors;

[0022] The server is used to execute the positioning method described in any one of the second aspects of the embodiments of this disclosure.

[0023] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, including a terminal and a server; wherein the terminal is configured to implement any positioning method of the first aspect of the embodiment of the present disclosure; and the server is configured to implement any positioning method of the second aspect of the embodiment of the present disclosure.

[0024] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, which, when an instruction is executed on a communication device, enables the communication device to execute any one of the positioning methods in the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0026] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0027] FIG2A is an interactive schematic diagram illustrating a positioning method according to an embodiment of the present disclosure;

[0028] FIG2B is a schematic diagram showing a SUPL server sending a first satellite ephemeris to a terminal according to an embodiment of the present disclosure;

[0029] FIG3 is a flow chart of a positioning method according to an embodiment of the present disclosure;

[0030] FIG4 is a flow chart of a positioning method according to an embodiment of the present disclosure;

[0031] FIG5 is a flow chart of a positioning method according to an embodiment of the present disclosure;

[0032] FIG6A is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure;

[0033] FIG6B is a schematic diagram of the structure of a server proposed in an embodiment of the present disclosure;

[0034] FIG7A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0035] FIG7B is a schematic diagram of the structure of the chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] The embodiments of the present disclosure provide a positioning method, a terminal, a server, a device, and a storage medium.

[0037] In a first aspect, an embodiment of the present disclosure provides a positioning method, which is executed by a terminal. The method includes:

[0038] Determine to trigger a positioning request, and send a first message to the server, where the first message includes information about the network device;

[0039] Receive first satellite ephemeris determined by the server according to the first message, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0040] In the above embodiment, by obtaining the first satellite ephemeris from the server, the ephemeris acquisition is avoided from relying on the specific algorithm of certain specific chips, thereby eliminating the problem of poor positioning stability or inability to position caused by abnormal satellite ephemeris broadcasting of a certain star system, thereby providing stability of terminal positioning.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the information of the network device includes:

[0042] Media Access Control (MAC) addresses of network devices;

[0043] Mobile country code MCC;

[0044] Mobile Network Code MNC;

[0045] UTRAN cell identifier.

[0046] In the above embodiment, by sending the information of the network device to the server, the server determines the first satellite ephemeris based on the information of the network device and returns the first satellite ephemeris to the terminal; in this way, it is possible to eliminate the abnormal satellite ephemeris broadcast by a certain satellite constellation and improve the stability of terminal positioning.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0048] receiving a satellite signal of at least one first satellite according to the first satellite ephemeris;

[0049] determining, among the at least one first satellite, a satellite belonging to a preset first satellite constellation as a second satellite;

[0050] The location of the terminal is determined according to the satellite signals of the second satellites.

[0051] In the above embodiment, according to the first satellite ephemeris, the signal of at least one first satellite is received, and the satellites among the first satellites belonging to the preset first satellite constellation are determined as second satellites, and the position of the terminal is determined according to the satellite signals of each second satellite. In this way, the satellites used for terminal positioning belong to the satellites of the preset first satellite constellation, and at the same time, are also satellites related to the first satellite ephemeris, which eliminates the problem of poor positioning stability or inability to position due to abnormal ephemeris data broadcast by a certain constellation or abnormal satellite signals, thereby improving the stability of terminal positioning.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the first satellite constellation is related to the region where the terminal is located.

[0053] In the above embodiment, the first satellite constellation is related to the region where the terminal is located; in this way, a satellite constellation with higher stability can be selected according to the region where the terminal is located, thereby eliminating the problem of poor positioning stability or inability to position caused by abnormal ephemeris data broadcast by a certain constellation or abnormal satellite signal, thereby improving the stability of terminal positioning.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, receiving a satellite signal of at least one first satellite according to the first satellite ephemeris includes:

[0055] Scanning satellite signals according to the first satellite ephemeris;

[0056] A satellite signal of at least one first satellite is received according to the scanned satellite signals.

[0057] In the above embodiment, satellite signals are scanned according to available satellite ephemeris, and signals of at least one first satellite are received according to the scanned satellite signals; in this way, satellite signals of satellites related to the first satellite ephemeris can be obtained, thereby eliminating the problem of poor positioning stability or inability to position due to abnormal position of satellite signal broadcast, and improving the stability of terminal positioning.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, determining the position of the terminal according to satellite signals of each second satellite includes:

[0059] determining a pseudorange between the terminal and each of the second satellites according to the satellite signals of each of the second satellites;

[0060] The position of the terminal is determined according to the pseudoranges between the terminal and each second satellite.

[0061] In the above embodiment, the pseudorange between the terminal and each second satellite is determined based on the satellite signal of each second satellite, and the position of the terminal is determined based on the pseudorange between the terminal and each second satellite. In this way, it is ensured that the pseudorange between the terminal and each second satellite is normal, thereby improving the stability and accuracy of the terminal positioning.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, the satellite signal includes a first moment when a satellite sends the satellite signal;

[0063] Determining the pseudorange between the terminal and each of the second satellites based on the satellite signal of each of the second satellites includes: determining a second time when the satellite signal of the second satellite is received;

[0064] A pseudorange between the terminal and the second satellite is determined according to the first time, the second time, and the speed of light.

[0065] In the above embodiment, the pseudorange between the terminal and each second satellite is determined by the first time, the second time and the speed of light; thus, the terminal can determine its position according to the pseudorange.

[0066] In a second aspect, an embodiment of the present disclosure provides a positioning method, which is executed by a server and includes:

[0067] receiving a first message, the first message including information of a network device; the first message being determined by the terminal to trigger generation of a positioning request;

[0068] A first satellite ephemeris is determined according to the first message, and the first satellite ephemeris is sent to the terminal, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0069] In the above embodiment, by sending the first satellite ephemeris to the terminal, the problem of poor positioning stability or failure to position caused by abnormal satellite ephemeris broadcast from a certain star system is eliminated, thereby improving the stability of terminal positioning.

[0070] In conjunction with some embodiments of the second aspect, in some embodiments, the information of the network device includes:

[0071] MAC address of the network device;

[0072] Mobile country code MCC;

[0073] Mobile Network Code MNC;

[0074] UTRAN cell identifier.

[0075] In the above embodiment, by receiving the network device information sent by the terminal, the server determines the first satellite ephemeris based on the information of the network device and returns the first satellite ephemeris to the terminal; in this way, abnormal satellite ephemeris broadcast by a certain satellite constellation can be eliminated, thereby improving the stability of terminal positioning.

[0076] In conjunction with some embodiments of the second aspect, in some embodiments, the server includes a mapping relationship between the information of the network device and the location information and a preset satellite ephemeris;

[0077] The determining a first satellite ephemeris according to the first message includes:

[0078] Determining location information of the network device from the mapping relationship according to the information of the network device;

[0079] The first satellite ephemeris is determined from preset satellite ephemeris according to the location information of the network device.

[0080] In the above embodiment, based on the information of the network device, the location information of the network device is determined from the mapping relationship, and based on the location information of the network device, the first satellite ephemeris is determined from the preset satellite ephemeris; in this way, the server can determine the location information of the network device based on the information of the network device, thereby determining the first satellite ephemeris from the preset satellite ephemeris based on the location information of the network device, thereby improving the accuracy of the first satellite ephemeris obtained by the terminal.

[0081] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0082] Transceiver module: used to determine the triggering location request and send a first message to the server, where the first message includes information about the network device;

[0083] Receive first satellite ephemeris determined by the server according to the first message, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0084] In a fourth aspect, an embodiment of the present disclosure provides a server, including:

[0085] Transceiver module: used to receive a first message, the first message including information of the network device; the first message is determined by the terminal to trigger the generation of a positioning request;

[0086] A first satellite ephemeris is determined according to the first message, and the first satellite ephemeris is sent to the terminal, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0087] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0088] one or more processors;

[0089] The terminal is used to execute the positioning method described in any one of the first aspects of the embodiments of this disclosure.

[0090] In a sixth aspect, an embodiment of the present disclosure provides a server, including:

[0091] one or more processors;

[0092] The server is used to execute the positioning method described in any one of the second aspects of the embodiments of this disclosure.

[0093] In a seventh aspect, an embodiment of the present disclosure proposes a communication system, comprising a terminal and a server; wherein the terminal is configured to implement any positioning method of the first aspect, and the server is configured to implement any positioning method of the second aspect.

[0094] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, which, when an instruction is executed on a communication device, enables the communication device to execute a positioning method as described in any one of the first and second aspects.

[0095] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0096] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0097] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0098] It is understandable that the above-mentioned terminals, servers, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0099] The embodiments of the present disclosure provide positioning methods, terminals, servers, devices, and storage media. In some embodiments, the terms positioning method, signal transmission method, wireless frame transmission method, etc. can be used interchangeably, and the terms information processing system, communication system, etc. can be used interchangeably.

[0100] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0101] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0102] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0103] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0104] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0105] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0106] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0107] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0108] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0109] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0110] In some embodiments, terms such as "greater than", "less than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0111] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "device", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0112] In some embodiments, “access network device (AN device)”, “radio access network device (radio

[0113] The terms access network device (RAN device),” “base station (BS)”, “radio base station”, “fixed station”, “node”, “access point”, “transmission point (TP)”, “reception point (RP)”, “transmission / reception point (TRP)”, “panel”, “antenna panel”, “antenna array”, “cell”, “macro cell”, “small cell”, “femto cell”, “pico cell”, “sector”, “cell group”, “carrier”, “component carrier”, and “bandwidth part (BWP)” are used interchangeably.

[0114] In some embodiments, the terms "terminal", "terminal device", "user equipment (terminal)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0115] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0116] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0117] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0118] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0119] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be used interchangeably.

[0120] In some embodiments, "obtain", "get", "obtain", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from a protocol, obtaining by self-processing, autonomous implementation, etc.

[0121] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0122] In some embodiments, "predetermined" and "preset" can be interpreted as pre-specified in a protocol, etc., or can be interpreted as a pre-set action performed by a device, etc.

[0123] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0124] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0125] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0126] FIG1 is an exemplary schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 , a server 102 , and a first satellite 103 .

[0127] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home, but is not limited thereto. It is understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. It is known to those skilled in the art that with the evolution of system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems. The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0128] The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5th generation mobile communication system-Advanced (5G-Advanced), 6th generation mobile communication system (6G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems using other positioning methods, and next-generation systems based on and extending these methods. Furthermore, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G) may also be used.

[0129] In some embodiments, the terminal is generally equipped with a Global Navigation Satellite System (GNSS) function, which relies on a positioning chip. The current chip algorithm uses all visible satellites to calculate the position to improve the position accuracy.

[0130] In some embodiments, the terminal receives satellite signals, and the positioning chip parses the satellite signals to obtain the satellite position broadcast by the satellite; the positioning chip parses the satellite signals to calculate the pseudo-range from the satellite to the mobile phone; based on the positions of the satellites in the parsed multiple satellite signals and the pseudo-ranges from each satellite to the terminal, the positioning chip calculates the position of the terminal in the three-dimensional coordinate system, and then reports the calculated position to the terminal.

[0131] In some embodiments, the terminal relies on the position provided by the positioning chip algorithm for positioning. Once an abnormality occurs in the algorithm, the terminal cannot be positioned or the positioning stability is poor.

[0132] In some embodiments, the terminal's positioning chip algorithm uses all currently visible satellites to calculate its position. Common satellite constellations used for positioning include, but are not limited to, the Global Positioning System (GPS), the BeiDou Satellite System, and the GLONASS Satellite System. In certain circumstances, if any of these satellite constellations broadcasts abnormal satellite ephemeris, the terminal will use this abnormal satellite ephemeris to calculate its own position, resulting in the terminal being unable to locate itself or experiencing abnormal positioning.

[0133] In some embodiments, the chip algorithm of the terminal is fixed and the expansion performance depends on the supplier.

[0134] In some embodiments, the positioning algorithm provided by the chip manufacturer mainly uses the signal-to-noise ratio to eliminate abnormal satellite signals for the problem of poor positioning stability or inability to position caused by abnormal satellite signals, so that satellites broadcasting abnormal satellite signals do not participate in position calculations; however, it cannot be ruled out that in a specific scenario, the ephemeris broadcast by a certain galaxy is abnormal, but the signal-to-noise ratio of the satellite signal of the galaxy is very good, resulting in abnormal terminal positioning.

[0135] FIG2A is an interactive schematic diagram of a positioning method according to an embodiment of the present disclosure. As shown in FIG2A , an embodiment of the present disclosure relates to a positioning method for a communication system 100, the method comprising:

[0136] Step S2101: The terminal sends a first message to the server.

[0137] In some embodiments, the server of the embodiment of the present disclosure may be a Secure User Plane Location (SUPL) server, and the terminal interacts with the SUPL server through the SUPL protocol. The interaction includes but is not limited to: the terminal sending a first message to the SUPL server and the terminal receiving a first satellite ephemeris sent by the SUPL server.

[0138] In an embodiment of the present disclosure, the terminal determines to trigger a positioning request and sends a first message to the server. The first message includes information of a network device that has a communication connection with the terminal, so that the server determines a first satellite ephemeris based on the first message, wherein the first satellite ephemeris is the ephemeris of the satellite currently visible to the terminal.

[0139] It should be understood that ephemeris, also known as two-line orbital data, is an expression used to describe the position and speed of a satellite. Ephemeris can accurately calculate, predict, depict, and track the time, position, speed, and other operating conditions of a satellite.

[0140] The method provided by the embodiment of the present disclosure can effectively reduce the occurrence of abnormal terminal positioning caused by abnormal satellite signals or abnormal ephemeris broadcast by a certain satellite constellation, thereby improving the stability of terminal positioning.

[0141] In some embodiments, the first message sent by the terminal is forwarded to the server via a network device.

[0142] In some embodiments, when the terminal determines to trigger a positioning request, if the terminal has not yet established a communication connection with the network device, it needs to establish a communication connection with the network device. The method of establishing a communication connection may include: the terminal scans the surrounding Wi-Fi signals or base station signals, and establishes a communication connection with the wireless access point AP or base station based on the scanning results.

[0143] In some embodiments, after establishing a communication connection with the network device, the terminal sends a first request to the network device, where the first request is used to obtain information about the network device.

[0144] In some embodiments, the network device sends its own information to the terminal in response to the first request sent by the terminal.

[0145] In some embodiments, the information of the network device may be at least one of the following:

[0146] MAC address of the network device;

[0147] Mobile country code MCC;

[0148] Mobile Network Code MNC;

[0149] UTRAN cell identifier.

[0150] Step S2102: The server sends a first satellite ephemeris to the terminal.

[0151] In some embodiments, the server has a mapping relationship between network device information and location information, as well as preset satellite ephemeris. Based on the network device information included in the first message, the server obtains the location information corresponding to the network device message. Furthermore, based on the location information, the server can obtain the ephemeris of the satellite associated with the location information at the current moment from the preset satellite ephemeris as the first satellite ephemeris.

[0152] In some embodiments, the information of the network device may be the MAC address of the network device. The server includes a mapping relationship between the MAC address of the network device and the location information of the network device. The server determines the location information corresponding to the MAC address of the network device based on the MAC address of the network device and the mapping relationship included in the first message received.

[0153] In some embodiments, the location information of the network device refers to the three-dimensional coordinates of the network device in a preset coordinate system. The embodiments of the present disclosure do not specifically limit the preset coordinate system, and it may be, for example, a national coordinate system.

[0154] The server also includes a preset satellite ephemeris. Since the satellite ephemeris can accurately calculate, predict, depict, and track the time, position, speed, and other operating states of satellites and flying objects, the server can determine the satellites passing through the location information of the network device at the current moment from the satellite ephemeris, as well as the ephemeris of the satellites currently visible to the terminal, based on the location information of the network device. This is used as the first satellite ephemeris.

[0155] In some embodiments, the server sends the first satellite ephemeris to the network device, which then forwards it to the terminal.

[0156] It should be noted that, considering that the coverage range of the satellite is much larger than the coverage range of the network device, the error between the location information of the network device and the location information of the terminal can be ignored. Therefore, the first satellite ephemeris determined based on the location information of the network device can be equivalent to the first satellite ephemeris determined based on the location information of the terminal.

[0157] Figure 2B is a schematic diagram illustrating a SUPL server sending a first satellite ephemeris to a terminal according to an embodiment of the present disclosure. As shown in Figure 2B , the terminal establishes a communication connection with a wireless access point (AP) or a base station by scanning for Wi-Fi signals or base station signals, and then downloads satellite data from the SUPL server via Wi-Fi or data services. In this embodiment, the satellite data downloaded by the terminal is the first satellite ephemeris, which is at least one of GPS satellite ephemeris and Beidou satellite ephemeris.

[0158] In an embodiment of the present disclosure, the server has a mapping relationship between network device information and network device location information. Based on the network device information included in the received first message and the mapping relationship, the location information corresponding to the network device information can be determined. At the same time, the server also includes a preset satellite ephemeris. Since the satellite ephemeris can accurately predict the position of the satellite, the satellite that currently covers the location information of the network device can be determined based on the location information of the network device, thereby determining the ephemeris of the satellite currently visible to the terminal. In the embodiment of the present disclosure, the terminal obtains the first satellite ephemeris from the server, which can effectively reduce the occurrence of abnormal terminal positioning caused by abnormal ephemeris broadcast by satellites in a certain star system, thereby improving the stability of terminal positioning.

[0159] Step S2103: The first satellite sends a satellite signal to the terminal.

[0160] In some embodiments, the first satellite ephemeris includes a satellite identifier of the first satellite, and the terminal scans the satellite signal of the currently visible first satellite according to the satellite identifier of the first satellite, wherein the first satellite is a satellite related to the first satellite ephemeris; based on the scanning result, the terminal receives the satellite signal of at least one first satellite.

[0161] In some embodiments, the signal sent by the first satellite may include the satellite's clock information, the time of sending the signal, and the satellite's identifier. It should be understood that the satellite's identifier is globally unique. For example, the Beidou satellite's identifier starts with 200.

[0162] Step S2104: The terminal determines the location of the terminal.

[0163] In some embodiments, the terminal determines a satellite belonging to a preset first satellite constellation among the at least one first satellite as the second satellite.

[0164] It should be noted that the satellites associated with the first satellite ephemeris in the embodiment of the present disclosure are the satellites currently visible to the terminal. Due to current actual conditions, the number of satellites actually visible to the terminal is not greater than the number of satellites visible to the terminal in the first satellite ephemeris.

[0165] It should also be noted that, in the embodiment of the present disclosure, the first satellite constellation is preset according to the region where the terminal is located. For example, if the region where the terminal is located is the Americas, the first satellite constellation may be a Global Positioning System (GPS) satellite constellation; if the region where the terminal is located is Asia, the first satellite constellation may be a Beidou satellite constellation; if the region where the terminal is located is Siberia, the first satellite constellation may be a GLONASS (Global Navigation Satellite System) satellite constellation; the embodiment of the present disclosure does not limit the setting rules of the first satellite constellations in different regions.

[0166] In some embodiments, the terminal determines the position of the terminal based on the satellite signals of each second satellite. The specific steps may include: obtaining the first moment when the second satellite sends the satellite signal, the terminal obtaining the second moment when the satellite signal is received, subtracting the first moment from the second moment to determine the transmission time of the satellite signal, and then multiplying the transmission time by the speed of light to obtain the pseudorange from the second satellite to the terminal; further, obtaining the position information of each second satellite at the first moment from the first satellite ephemeris, and determining the position of the terminal based on the pseudorange from each second satellite to the terminal and the position information of each second satellite at the first moment.

[0167] It should be noted that, in the embodiment of the present disclosure, calculating the position of the terminal requires the position information of at least four satellites and the pseudo-ranges from the corresponding satellites to the terminal.

[0168] For example, the terminal receives satellite signals from three second satellites, numbered 01, 02, and 03. The times at which the terminal receives each second satellite are t1, t2, and t3, respectively. The times at which the three second satellites send satellite signals are t'1, t'2, and t'3, respectively. Therefore, by subtracting the time at which the satellite signal is sent from the time at which the satellite signal is received, the transmission time of the satellite signal from each second satellite can be calculated, which are Δt1, Δt2, and Δt3, respectively. Since the satellite signal travels at the speed of light c, the pseudorange L between each second satellite and the terminal can be obtained. i =c*Δt i , where i = [1, 2, 3]. Therefore, based on the pseudoranges from the three second satellites to the terminal and the three-dimensional coordinates of the three second satellites at the time of sending satellite signals, the three-dimensional coordinates of the terminal can be calculated to determine the position of the terminal.

[0169] Then, in actual applications, satellites use atomic clocks, which are extremely accurate. Therefore, the sending time of the satellite signal is t′ iIt is accurate, but the clock accuracy on the terminal is low, and there will be an error of t0 with the standard time of the atomic clock. Since this error value becomes very large after multiplying it by the speed of light c, it loses the meaning of positioning. Therefore, it is necessary to introduce the three-dimensional coordinates of the fourth satellite and the pseudo-range from the fourth satellite to the terminal to eliminate the influence of the error t0, that is, it is necessary to calculate the value of t0. Specifically, the actual transmission time of the satellite signal of the second satellite is defined as (Δt i -t0), the formula for calculating the three-dimensional coordinates of the terminal is as follows: (x1-x) 2 +(y1-y) 2 +(z1-z) 2 =[c*(Δt1-t0) 2 ] (1) (x2-x) 2 +(y²-y) 2 +(z2-z) 2 =[c*(Δt2-t0) 2 ] (2) (x3-x) 2 +(y3-y) 2 +(z3-z) 2 =[c*(Δt3-t0) 2 ] (3) (x4-x) 2 +(y4-y) 2 +(z4-z) 2 =[c*(Δt4-t0) 2 ] (4)

[0170] Among them, in formula (1) to formula (4), (x i ,y i , z i ) are the three-dimensional coordinates of the four second satellites, Δt i is the difference between the time when the terminal receives the satellite signal from the corresponding second satellite and the time when the corresponding second satellite transmits the satellite signal; where i = [1, 2, 3, 4]. The four equations calculate four unknowns, from which the three-dimensional coordinates (x, y, z) of the terminal can be obtained, and the terminal's position can be determined based on the three-dimensional coordinates of the terminal.

[0171] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2A .

[0172] FIG3 is a flow chart of a positioning method according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure involves a terminal 101, and the method includes:

[0173] Step S3101: The terminal sends a first message to the server.

[0174] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0175] In some embodiments, the terminal determines to trigger a positioning request and sends a first message to the server, where the first message includes information about a network device that has a communication connection with the terminal.

[0176] In some embodiments, the first message sent by the terminal is forwarded to the server via a network device.

[0177] In some embodiments, when the terminal sends the first message to the server, the terminal has not yet established a communication connection with the network device, and it is necessary to establish a communication connection with the network device. The method for establishing a communication connection may include: the terminal scans the surrounding Wi-Fi signals or base station signals, and establishes a communication connection with the wireless access point AP or base station based on the scanning results.

[0178] Step S3102: The terminal receives the first satellite ephemeris sent by the server.

[0179] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0180] In some embodiments, the server has a mapping relationship between network device information and location information, as well as preset satellite ephemeris. Based on the network device information included in the first message, the server obtains the location information corresponding to the network device message. Simultaneously, based on the location information, the server can obtain the ephemeris of the satellite associated with the location information at the current moment from the preset satellite ephemeris as the first satellite ephemeris.

[0181] Step S3103: The terminal receives a satellite signal from at least one first satellite.

[0182] The optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0183] In some embodiments, the first satellite ephemeris includes a satellite identifier of the first satellite, and the terminal scans the satellite signal of the currently visible first satellite according to the satellite identifier of the first satellite, wherein the first satellite is a satellite related to the first satellite ephemeris; based on the scanning result, the terminal receives the satellite signal of at least one first satellite.

[0184] In step S3104, the terminal determines a second satellite based on satellites in the preset first satellite constellation.

[0185] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0186] In some embodiments, the terminal determines a satellite belonging to a preset first satellite constellation among the at least one first satellite as the second satellite.

[0187] In step S3105 , the terminal determines its own position based on the satellite signal of the second satellite.

[0188] The optional implementation of step S3105 can refer to the optional implementation of step S2104 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0189] In some embodiments, the position of the terminal is determined based on the satellite signals of each second satellite. The specific steps may include: obtaining the first moment when the second satellite sends the satellite signal, the terminal determines the second moment when the satellite signal is received, subtracting the first moment from the second moment to determine the transmission time of the satellite signal, and then multiplying the transmission time by the speed of light to obtain the pseudorange from the second satellite to the terminal; further, obtaining the position information of each second satellite at the first moment from the first satellite ephemeris, and determining the position of the terminal based on the pseudorange from each second satellite to the terminal and the position information of each second satellite at the first moment.

[0190] FIG4 is a flow chart of a positioning method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure involves a server 102, and the method includes:

[0191] Step S4101: The server receives the first message sent by the terminal.

[0192] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0193] In some embodiments, the server receives a first message determined by the terminal to trigger the sending of a positioning request, where the first message includes information about a network device that has a communication connection with the terminal.

[0194] In some embodiments, the server establishes a communication connection with the network device in advance before receiving the first message sent by the terminal.

[0195] Step S4102: The server sends a first satellite ephemeris to the terminal.

[0196] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0197] In some embodiments, the server includes a mapping relationship between the MAC address of the network device and the location information of the network device. The server determines the location information corresponding to the MAC address of the network device based on the MAC address of the network device and the mapping relationship included in the received first message. The server determines the satellite passing through the location information of the network device at the current moment from the satellite ephemeris based on the location information of the network device, as well as the ephemeris of the satellites currently visible to the terminal, as the first satellite ephemeris.

[0198] In some embodiments, the server sends the first satellite ephemeris to the network device, and the network device forwards the first satellite ephemeris to the terminal.

[0199] FIG5 is a flow chart of a positioning method according to an embodiment of the present disclosure. As shown in FIG5 , an embodiment of the present disclosure relates to a positioning method for a communication system 100, the method comprising:

[0200] Step S5101: The terminal establishes a communication connection with a network device and obtains information about the network device.

[0201] Optional implementations of step S5101 may refer to step S2101 in FIG. 2A , step S3101 in FIG. 3 , and other related parts in the embodiments involved in FIG. 2A and FIG. 3 , which will not be described in detail here.

[0202] In some embodiments, the terminal determines a positioning request, scans surrounding Wi-Fi signals or base station signals, establishes a communication connection with a wireless access point AP or a base station according to the scanning results, and obtains information about network devices.

[0203] Step S5102: The terminal sends a first message to the server.

[0204] Optional implementations of step S5102 may refer to step S2101 in FIG. 2A , step S3101 in FIG. 3 , and other related parts in the embodiments involved in FIG. 2A and FIG. 3 , which will not be described in detail here.

[0205] In some embodiments, the terminal determines to trigger a positioning request and sends a first message to the server, where the first message includes information about a network device that has a communication connection with the terminal.

[0206] In some embodiments, the first message sent by the terminal is forwarded to the server via a network device.

[0207] Step S5103: The server sends the first satellite ephemeris to the terminal.

[0208] The optional implementation of step S5103 can refer to the optional implementation of step S2102 in Figure 2A, step S4102 in Figure 4, and other related parts in the embodiments involved in Figures 2A and 4, which will not be repeated here.

[0209] In some embodiments, the server receives a first message determined by the terminal to trigger the sending of a positioning request, where the first message includes information about a network device that has a communication connection with the terminal.

[0210] In some embodiments, the server includes a mapping relationship between the MAC address of the network device and the location information of the network device. The server determines the location information corresponding to the MAC address of the network device based on the MAC address of the network device and the mapping relationship included in the received first message. The server determines the satellite passing through the location information of the network device at the current moment from the satellite ephemeris based on the location information of the network device, as well as the ephemeris of the satellites currently visible to the terminal, as the first satellite ephemeris.

[0211] In some embodiments, the server forwards the first satellite ephemeris to the terminal via a network device.

[0212] Step S5104: The terminal receives a satellite signal of at least one first satellite according to the first satellite ephemeris.

[0213] The optional implementation of step S5104 can refer to the optional implementation of step S2104 in Figure 2A, the optional implementation of step S3103 in Figure 3, and other related parts in the embodiments involved in Figures 2A and 3, which will not be repeated here.

[0214] In some embodiments, the terminal scans satellite signals of currently visible first satellites according to first satellite ephemeris, wherein the first satellite is a satellite associated with the first satellite ephemeris; and according to a result of the scanning, the terminal receives satellite signals of at least one first satellite.

[0215] In step S5105, the terminal determines a second satellite based on satellites in a preset first satellite constellation.

[0216] The optional implementation of step S5105 can refer to the optional implementation of step S2104 in Figure 2A, step S3104 in Figure 3, and other related parts in the embodiments involved in Figures 2A and 3, which will not be repeated here.

[0217] In some embodiments, the terminal determines a satellite belonging to a preset first satellite constellation among the at least one first satellite as the second satellite.

[0218] Step S5106: The terminal determines the location of the terminal according to the satellite signal of the second satellite.

[0219] The optional implementation of step S5106 can refer to the optional implementation of step S2104 in Figure 2A, step S3105 in Figure 3, and other related parts in the embodiments involved in Figures 2A and 3, which will not be repeated here.

[0220] In some embodiments, the position of the terminal is determined based on the satellite signals of each second satellite. The specific steps may include: obtaining the first moment when the second satellite sends the satellite signal, the terminal obtaining the second moment when the satellite signal is received, subtracting the first moment from the second moment to determine the transmission time of the satellite signal, and then multiplying the transmission time by the speed of light to obtain the pseudorange from the second satellite to the terminal; further, obtaining the moment when each satellite sends the satellite signal from the first satellite ephemeris, that is, the position information of the satellite at the first moment, and determining the position of the terminal based on the pseudorange from each second satellite to the terminal and the position information of each second satellite at the first moment.

[0221] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing each step performed by terminal 101 in any of the above methods. For another example, another apparatus is provided that includes units or modules for implementing each step performed by server 102 in any of the above methods.

[0222] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0223] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0224] FIG6A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG6A , the terminal may include: a transceiver module 6101 .

[0225] In some embodiments, the transceiver module is used to determine a triggering location request and send a first message to the server, where the first message includes information about the network device;

[0226] Receive first satellite ephemeris determined by the server according to the first message, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0227] Optionally, the above-mentioned processing module is used to execute the communication steps such as sending and / or receiving performed by the terminal in any of the above methods, such as step S3101, which will not be repeated here.

[0228] FIG6B is a schematic diagram of the structure of a server according to an embodiment of the present disclosure. As shown in FIG6B , the server may include a transceiver module 6201 .

[0229] In some embodiments, the transceiver module is configured to receive a first message, the first message including information about the network device; the first message is determined by the terminal to trigger the generation of a positioning request;

[0230] A first satellite ephemeris is determined according to the first message, and the first satellite ephemeris is sent to the terminal, where the first satellite ephemeris is the ephemeris of a satellite currently visible to the terminal.

[0231] Optionally, the above-mentioned transceiver module is used to execute the communication steps such as sending and / or receiving performed by the server in any of the above methods, such as step S4101, which will not be repeated here.

[0232] Figure 7A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), or an IoT device. It can also be a chip, chip system, or processor that supports a network device to implement any of the above methods. It can also be a chip, chip system, or processor that supports an IoT device to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0233] As shown in Figure 7A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.

[0234] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S2102, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0235] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.

[0236] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 7A . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0237] 7B is a schematic diagram of the structure of the chip 8200 proposed in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG7B , but the present disclosure is not limited thereto.

[0238] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.

[0239] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.

[0240] In some embodiments, the interface circuit 8202 performs at least one of the communication steps (e.g., step S2101, but not limited thereto) in the above method, such as sending and / or receiving. The interface circuit 8202 performing the communication steps (e.g., sending and / or receiving) in the above method, for example, means that the interface circuit 8202 performs data exchange between the processor 8201, chip 8200, memory 8203, or a transceiver device. In some embodiments, the processor 8201 performs at least one of the other steps (e.g., step S2102, but not limited thereto).

[0241] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0242] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0243] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A positioning method, characterized in that, The method is executed by a terminal, and the method includes: Determine a trigger for a positioning request, and send a first message to a server, where the first message includes information about a network device; Receive a first satellite ephemeris determined by the server according to the first message, where the first satellite ephemeris is the ephemeris of satellites currently visible to the terminal.

2. The positioning method according to claim 1, wherein The information about the network device includes: The media access control (MAC) address of the network device; Mobile country code (MCC); Mobile network code (MNC); UTRAN cell identifier.

3. The positioning method according to claim 1, characterized in that, It further includes: According to the first satellite ephemeris, receive satellite signals of at least one first satellite; Determine satellites belonging to a preset first satellite constellation among the at least one first satellite as second satellites; Determine the position of the terminal according to the satellite signals of each second satellite.

4. The positioning method according to claim 3, wherein, The first satellite constellation is related to the area where the terminal is located.

5. The positioning method according to claim 3 or 4, characterized in that, The receiving satellite signals of at least one first satellite according to the first satellite ephemeris includes: Scan satellite signals according to the first satellite ephemeris; Receive satellite signals of at least one first satellite according to the scanned satellite signals.

6. The positioning method according to claim 3, wherein The determining the position of the terminal according to the satellite signals of each second satellite includes: Determine the pseudorange between the terminal and each second satellite according to the satellite signals of each second satellite; Determine the position of the terminal according to the pseudorange between the terminal and each second satellite.

7. The positioning method according to claim 6, wherein The satellite signal includes the first time when the satellite sends the satellite signal; The determining the pseudorange between the terminal and each second satellite according to the satellite signals of each second satellite includes: determining the second time when the satellite signal of the second satellite is received; Determine the pseudorange between the terminal and the second satellite according to the first time, the second time, and the speed of light.

8. A positioning method, characterized in that, The method is executed by a server, and the method includes: Receive a first message, where the first message includes information about a network device; the first message is generated by the terminal determining a trigger for a positioning request; Determine a first satellite ephemeris according to the first message, and send the first satellite ephemeris to the terminal, where the first satellite ephemeris is the ephemeris of satellites currently visible to the terminal.

9. The method according to claim 8, wherein The information about the network device includes: The MAC address of the network device; Mobile country code (MCC); Mobile network code (MNC); UTRAN cell identifier.

10. The method according to claim 8 or 9, characterized in that The server includes a mapping relationship between the information about the network device and location information, and a preset satellite ephemeris; The determining a first satellite ephemeris according to the first message includes: Determine the location information of the network device from the mapping relationship according to the information about the network device; Determine the first satellite ephemeris from the preset satellite ephemeris according to the location information of the network device.

11. A terminal, characterized in that, It includes: A transceiver module: used to determine a trigger for a positioning request, and send a first message to a server, where the first message includes information about a network device; Receive a first satellite ephemeris determined by the server according to the first message, where the first satellite ephemeris is the ephemeris of satellites currently visible to the terminal.

12. A server, characterized in that, It includes: A transceiver module: used to receive a first message, where the first message includes information about a network device; The first message is determined by the terminal to trigger the generation of a positioning request. Based on the first message, a first satellite ephemeris is determined and sent to the terminal. The first satellite ephemeris is the ephemeris of the satellites currently visible to the terminal.

13. A terminal, characterized in that, Comprising: One or more processors; Wherein, the processor is configured to execute the positioning method according to any one of claims 1 to 7.

14. A server, characterized in that, Comprising: One or more processors; Wherein, the processor is configured to execute the positioning method according to any one of claims 8 to 10.

15. A communication system, characterized in that, Comprising: A terminal for implementing the positioning method according to any one of claims 1 - 7; A server for implementing the positioning method according to any one of claims 8 - 10.

16. A storage medium, wherein the storage medium stores instructions, characterized in that, When the instruction runs on the communication device, the communication device is caused to execute the positioning method according to any one of claims 1 - 7, 8 - 10.

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