CN111343584A - NB-loT terminal positioning method and server - Google Patents
NB-loT terminal positioning method and server Download PDFInfo
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- CN111343584A CN111343584A CN202010128845.4A CN202010128845A CN111343584A CN 111343584 A CN111343584 A CN 111343584A CN 202010128845 A CN202010128845 A CN 202010128845A CN 111343584 A CN111343584 A CN 111343584A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
Abstract
The application provides a positioning method of an NB-loT terminal and a server. The method comprises the following steps: a server receives a positioning request sent by an NB-loT terminal which does not have a satellite positioning function or cannot have the satellite positioning function, wherein the positioning request carries an identifier of a cell where the NB-loT terminal is located; the server inquires a longitude and latitude coordinate database of the cell according to the identification of the cell carried in the positioning request to obtain longitude and latitude coordinates corresponding to the identification of the cell, wherein the longitude and latitude coordinate database of the cell is obtained by the server according to the longitude and latitude coordinates which are obtained by at least one terminal with a satellite positioning function based on the satellite positioning function and are sent at different moments; and the server sends a positioning response to the NB-loT terminal, wherein the positioning response carries the longitude and latitude coordinates corresponding to the cell identifier, so that the positioning accuracy of the NB-loT terminal is improved.
Description
Technical Field
The application relates to the field of Internet of things, in particular to a positioning method and a server for an NB-loT terminal.
Background
Currently, NB-loT (Narrow Band Internet of Things) terminal positioning mainly depends on a positioning interface provided by an operator, and the principle is that after the terminal is registered in an NB-loT network, the terminal acquires the identification of a CELL where the terminal is located, such as a CELL number (CELL-ID), reports the CELL-ID information to an operator positioning platform, and the positioning platform returns the longitude and latitude of a corresponding base station according to the base station number corresponding to the sector to which the CELL-ID belongs.
The positioning accuracy of the base station depends on the density of the base station, the positioning accuracy is higher in an urban area with higher density of the base station, and the positioning accuracy is lower in a suburban area with lower density of the base station.
In active electric vehicle positioners, Global Positioning System (GPS) or CELL-ID positioning systems are generally used. Under the condition of good outdoor GPS signals, GPS positioning is used, and in the indoor or building-intensive places, the GPS signals are weak, and the mode of base station CELL-ID positioning is used. And the passive NB terminal can not be provided with a GPS module from the viewpoint of saving power consumption, and can only use the base station CELL-ID for positioning.
It can be seen that improving the positioning accuracy of NB-loT terminals that do not have a satellite positioning function or are not available with a satellite positioning function is an urgent problem to be solved at present.
Disclosure of Invention
The embodiment of the application provides a positioning method and a server of an NB-loT terminal, which are used for improving the positioning accuracy of the NB-loT terminal.
In a first aspect, an embodiment of the present application provides a method for positioning an NB-loT terminal, including:
a server receives a positioning request sent by an NB-loT terminal which does not have a satellite positioning function or cannot have the satellite positioning function, wherein the positioning request carries an identifier of a cell in which the NB-loT terminal is located;
the server inquires a longitude and latitude coordinate database of the cell according to the identification of the cell carried in the positioning request to obtain longitude and latitude coordinates corresponding to the identification of the cell, wherein the longitude and latitude coordinate database of the cell is obtained by the server according to the longitude and latitude coordinates which are obtained by at least one terminal with a satellite positioning function and are sent at different moments on the basis of the satellite positioning function;
and the server sends a positioning response to the NB-loT terminal, wherein the positioning response carries the longitude and latitude coordinates corresponding to the cell identifier.
Optionally, the method further comprises:
the method comprises the steps that a server receives position reports sent by at least one terminal with a satellite positioning function at different moments, wherein the position reports comprise an identifier of a cell where the terminal is located and longitude and latitude coordinates obtained by the terminal based on the satellite positioning function;
the method comprises the steps that a server respectively determines longitude and latitude coordinates of different cells according to cell identifiers and the longitude and latitude coordinates in position reports sent by at least one terminal with a satellite positioning function at different moments;
and the server generates a cell longitude and latitude coordinate database according to the longitude and latitude coordinates of different cells.
Optionally, the determining, by the server, the longitude and latitude coordinates of different cells according to the identifier and the longitude and latitude coordinates of the cell in the location report sent by the at least one terminal with the satellite positioning function at different times includes:
the method comprises the steps that a server determines an average value of longitude and latitude coordinates according to the identification and the longitude and latitude coordinates of a cell in a position report sent by at least one terminal with a satellite positioning function at different moments and aiming at the longitude and latitude coordinates corresponding to the identification of the same cell;
and the server determines the average value of the longitude and latitude coordinates as the longitude and latitude coordinates of the cell corresponding to the identifier of the corresponding cell.
In a second aspect, an embodiment of the present application provides a server, including:
the receiving module is used for receiving a positioning request sent by an NB-loT terminal which does not have a satellite positioning function or cannot have the satellite positioning function, wherein the positioning request carries an identifier of a cell where the NB-loT terminal is located;
the processing module is used for inquiring a longitude and latitude coordinate database of the cell according to the identification of the cell carried in the positioning request to obtain longitude and latitude coordinates corresponding to the identification of the cell, wherein the longitude and latitude coordinate database of the cell is obtained by a server according to the longitude and latitude coordinates which are obtained by at least one terminal with a satellite positioning function based on the satellite positioning function and are sent at different moments;
and the sending module is used for sending a positioning response to the NB-loT terminal, wherein the positioning response carries the longitude and latitude coordinates corresponding to the cell identifier.
Optionally, the server further includes:
the receiving module is further used for receiving position reports sent by at least one terminal with the satellite positioning function at different moments, wherein the position reports comprise the identification of a cell where the terminal is located and longitude and latitude coordinates obtained by the terminal based on the satellite positioning function;
and the processing module is also used for respectively determining the longitude and latitude coordinates of different cells according to the cell identification and the longitude and latitude coordinates in the position report sent by at least one terminal with the satellite positioning function at different moments, and generating a cell longitude and latitude coordinate database according to the longitude and latitude coordinates of the different cells.
Optionally, the processing module is specifically configured to:
determining the average value of longitude and latitude coordinates according to the identification and the longitude and latitude coordinates of a cell in a position report sent by at least one terminal with a satellite positioning function at different moments and aiming at the longitude and latitude coordinates corresponding to the identification of the same cell;
and determining the average value of the longitude and latitude coordinates as the longitude and latitude coordinates of the cell corresponding to the identifier of the corresponding cell.
In a third aspect, an embodiment of the present application provides a server, including a processor and a memory:
a memory coupled to the processor and configured to store computer instructions; a processor, coupled to the memory, configured to execute the computer instructions to cause the server to perform the method of the first aspect.
In a fourth aspect, embodiments of the present application provide a storage medium, where a computer-readable storage medium stores computer-executable instructions for causing a computer to perform the method according to any one of the first aspect.
In the embodiment of the application, for a positioning request sent by an NB-loT terminal which does not have a satellite positioning function or cannot have the satellite positioning function, a server queries a cell longitude and latitude coordinate database according to an identifier of a cell where an NB-loT terminal is located, wherein the identifier is carried in the positioning request, so as to obtain longitude and latitude coordinates corresponding to the identifier of the cell, and carries the longitude and latitude coordinates corresponding to the identifier of the cell in a positioning response to send the positioning response to the NB-loT terminal. The longitude and latitude coordinate database of the cell is obtained by the server according to the longitude and latitude coordinates which are obtained by at least one terminal with the satellite positioning function and are sent at different moments based on the satellite positioning function, so that the positioning accuracy of the NB-loT terminal is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 schematically illustrates an application scenario provided by an embodiment of the present application;
fig. 2 is a schematic diagram illustrating statistics of longitude and latitude coordinates obtained by a satellite positioning function for each cell according to an embodiment of the present application;
fig. 3 is a flowchart illustrating a method for generating a longitude and latitude coordinate database of a cell according to an embodiment of the present application;
fig. 4 is a flowchart illustrating a method for positioning an NB-loT terminal according to an embodiment of the present application;
fig. 5 is a schematic diagram illustrating a server structure provided by an embodiment of the present application;
fig. 6 schematically illustrates a server apparatus according to an embodiment of the present application.
Detailed Description
The embodiment of the application provides a positioning method and a server of an NB-loT terminal, wherein the server generates a cell longitude and latitude coordinate database according to longitude and latitude coordinates sent by at least one terminal with a satellite positioning function at different moments based on the satellite positioning function, and the cell longitude and latitude coordinate database is utilized to respond to a positioning request sent by the NB-loT terminal, so that the NB-loT terminal obtains the longitude and latitude coordinates corresponding to the identification of a cell, and the positioning accuracy of the NB-loT terminal is further improved.
Fig. 1 schematically illustrates an application scenario provided in an embodiment of the present application. As shown, the NB-loT terminal 200 is located within the cell 100 covered by the base station 300, the NB-loT terminal 200 communicates with the server 500 through the internet 400, and the internet 400 is connected to the server 500 by wire. The base station 300 may be an evolved base station, a macro base station, a micro base station (also referred to as a "small base station"), a pico base station, a mobile base station, a shared base station, etc., and the server 500 may be a web server, an enterprise-class server, an operator platform server, etc.
The server 500 stores therein a longitude and latitude coordinate database of the cell and longitude and latitude coordinate data of each base station. The longitude and latitude coordinate database of the cell comprises a cell identifier and longitude and latitude coordinate data of the cell corresponding to the cell identifier. The server 500 may respond to the location query request of the NB-loT terminal, and obtain the longitude and latitude coordinates of the NB-loT terminal by querying the longitude and latitude coordinate database of the cell according to the cell identifier carried in the request.
In the embodiment of the application, the longitude and latitude coordinate database of the cell is generated by a server according to longitude and latitude coordinates which are obtained by at least one terminal with a satellite positioning function based on the satellite positioning function and are sent at different moments.
In the embodiment of the application, the server can count the identifications of the cells reported by one or more terminals with the satellite positioning function for multiple times and the longitude and latitude acquired based on the satellite positioning function, and for the identification of each cell, the longitude and latitude coordinate database of the cell is obtained according to the longitude and latitude acquired based on the satellite positioning function corresponding to the identification of the cell.
Specifically, the server may count the location information (the cell identifier and the longitude and latitude obtained based on the satellite positioning function) reported by one or more terminals with the satellite positioning function according to a set period or set time to obtain a cell longitude and latitude coordinate database. The one or more terminals may be terminals having NB-IoT internet of things cards and satellite positioning modules, such as an electric vehicle locator. The NB-IoT Internet of things card can have a wireless communication function, and the satellite positioning module can be a GPS positioning module or other satellite positioning modules and is used for obtaining longitude and latitude coordinates of the current position of the terminal based on satellite positioning.
Fig. 2 is a schematic diagram illustrating statistics of longitude and latitude coordinates obtained by the satellite positioning function for each cell according to an embodiment of the present application. As shown in the figure, 3 CELLs in the coverage area of a base station are respectively identified by CELL numbers CELL-ID1, CELL-ID2 and CELL-ID3, in the CELL identified as CELL-ID2, hollow dots represent longitude and latitude coordinates obtained based on satellite positioning, solid dots represent an average value obtained by calculation according to the longitude and latitude coordinates, and the average value of a server is used as the longitude and latitude coordinates corresponding to CELL-ID 2. It can be seen that the average value of the longitude and latitude coordinates obtained based on satellite positioning reported by the terminals in the cell is used to establish the corresponding relationship between the cell identifier and the longitude and latitude coordinates, and as the longitude and latitude coordinates are obtained by integrating the longitude and latitude coordinates of a plurality of terminals or the longitude and latitude coordinates reported by the terminals for a plurality of times, the longitude and latitude coordinates are closer to the actual position of the terminal compared with the longitude and latitude coordinates of the base station in the cell, so that higher accuracy can be obtained when the terminals are positioned according to the corresponding relationship.
Fig. 3 is a flowchart illustrating a method for generating a longitude and latitude coordinate database of a cell according to an embodiment of the present application. The process comprises the following steps:
s301: the server receives position reports sent by at least one terminal with a satellite positioning function at different moments, wherein the position reports comprise the identification of a cell where the terminal is located and longitude and latitude coordinates obtained by the terminal based on the satellite positioning function.
In the step, the server receives the identification of the cell where the terminal is located in the position report sent by at least one terminal with the satellite positioning function at different moments, calls an operator positioning interface to acquire the longitude and latitude coordinates of the base station corresponding to the cell where the terminal is located according to the identification of the cell where the terminal is located, and receives the longitude and latitude coordinates acquired by the terminal based on the satellite positioning function.
Because the terminal with the satellite positioning function may be located in different cells at different times due to its mobility, the server may obtain the longitude and latitude of a plurality of satellite positioning for the same cell based on the position information (the identifier of the cell where the terminal is currently located and the longitude and latitude coordinates obtained by the satellite positioning module based on the terminal) reported by the terminal for a plurality of times.
In addition, there may be a plurality of terminals with a satellite positioning function, and the plurality of terminals may be distributed in different cells, so that based on the position information (the identifier of the cell where the terminal is currently located and the longitude and latitude coordinates obtained by the satellite positioning module based on the terminal) reported by the plurality of terminals many times, the server may obtain the longitude and latitude of a plurality of satellite positioning in the same cell.
S302: and the server respectively determines the longitude and latitude coordinates of different cells according to the cell identification and the longitude and latitude coordinates in the position report sent by at least one terminal with the satellite positioning function at different moments.
In the step, the server determines the average value of the longitude and latitude coordinates according to the identification and the longitude and latitude coordinates of the cell in the position report sent by at least one terminal with the satellite positioning function at different moments aiming at the longitude and latitude coordinates corresponding to the identification of the same cell, and determines the average value of the determined longitude and latitude coordinates as the longitude and latitude coordinates of the cell corresponding to the identification of the corresponding cell.
S303: and the server generates a cell longitude and latitude coordinate database according to the longitude and latitude coordinates of different cells.
According to the built longitude and latitude database of the cell, the server can provide positioning service for NB-loT terminals without satellite positioning function or NB-loT terminals with unavailable satellite positioning function.
Fig. 4 is a flowchart illustrating a method for positioning an NB-loT terminal according to an embodiment of the present application. The process comprises the following steps:
s401: and the server receives a positioning request sent by an NB-loT terminal which does not have a satellite positioning function or is unavailable with the satellite positioning function, wherein the positioning request carries the identification of the cell in which the NB-loT terminal is located.
S402: and the server queries the longitude and latitude coordinate database of the cell according to the identification of the cell carried in the positioning request to obtain the longitude and latitude coordinate corresponding to the identification of the cell.
In this step, the longitude and latitude coordinate database of the cell is obtained by the server according to the longitude and latitude coordinates at different times obtained by at least one terminal with the satellite positioning function based on the satellite positioning function, and is the same as the above-mentioned contents, and will not be described in detail here.
S403: and the server sends a positioning response to the NB-loT terminal, wherein the positioning response carries the longitude and latitude coordinates corresponding to the cell identifier.
In the embodiment of the application, a longitude and latitude coordinate database of a cell is generated according to the average value of longitude and latitude coordinates sent at different moments by at least one terminal with a satellite positioning function based on the satellite positioning function, and the longitude and latitude coordinates corresponding to the identification of the cell are carried in a sent positioning response aiming at a positioning request sent by an NB-loT terminal which does not have the satellite positioning function or cannot have the satellite positioning function, so that the NB-loT terminal takes the longitude and latitude coordinates corresponding to the received identification of the cell as position information, and the positioning accuracy of the NB-loT terminal is improved.
Based on the same technical concept, the embodiment of the application provides a server, and the server can implement the method of the server in the embodiment.
Referring to fig. 5, the server includes: a receiving module 501, a processing module 502 and a sending module 503.
A receiving module 501, configured to receive a positioning request sent by an NB-loT terminal that does not have a satellite positioning function or is unavailable with the satellite positioning function, where the positioning request carries an identifier of a cell in which the NB-loT terminal is located;
a processing module 502, configured to query a cell longitude and latitude coordinate database according to the identifier of the cell carried in the positioning request, to obtain longitude and latitude coordinates corresponding to the identifier of the cell, where the cell longitude and latitude coordinate database is obtained by the server according to the longitude and latitude coordinates at different times obtained by at least one terminal with a satellite positioning function based on the satellite positioning function;
a sending module 503, configured to send a positioning response to the NB-loT terminal, where the positioning response carries the longitude and latitude coordinates corresponding to the cell identifier.
Optionally, the receiving module 501 is further configured to receive a location report sent by at least one terminal with a satellite positioning function at different times, where the location report includes an identifier of a cell where the terminal is located and longitude and latitude coordinates obtained by the terminal based on the satellite positioning function.
Optionally, the processing module 502 is further configured to determine longitude and latitude coordinates of different cells according to the identifier and the longitude and latitude coordinates of the cell in the location report sent by the at least one terminal with the satellite positioning function at different times, and generate a longitude and latitude coordinate database of the cell according to the longitude and latitude coordinates of the different cells.
Optionally, the processing module 502 is specifically configured to determine, according to the identifier and the latitude and longitude coordinates of the cell in the position report sent by the at least one terminal with the satellite positioning function at different times, an average value of the latitude and longitude coordinates according to the latitude and longitude coordinates corresponding to the identifier of the same cell; and determining the average value of the longitude and latitude coordinates as the longitude and latitude coordinates of the cell corresponding to the identifier of the corresponding cell.
The functions of the modules in the server can be referred to the description of the functions implemented by the server in the foregoing embodiments, and are not repeated here.
Based on the same technical concept, the embodiment of the application also provides a server, and the terminal can realize the functions of the server in the embodiment.
Referring to fig. 6, the server includes a processor 601, a network interface 602. The processor 601 may also be a controller. The processor 601 is configured to perform the functions referred to in fig. 3. The network interface 602 is configured to support messaging functionality. The server may also include a memory 603, the memory 603 being configured to couple to the processor 601 and to store program instructions and data necessary for the device. The processor 601, the network interface 602 and the memory 603 are connected, the memory 603 is configured to store instructions, and the processor 601 is configured to execute the instructions stored in the memory 603 to control the network interface 602 to send and receive messages, and perform the following operations:
receiving a positioning request sent by an NB-loT terminal which does not have a satellite positioning function or cannot have the satellite positioning function, wherein the positioning request carries an identifier of a cell in which the NB-loT terminal is located;
inquiring a cell longitude and latitude coordinate database according to the identification of the cell carried in the positioning request to obtain longitude and latitude coordinates corresponding to the identification of the cell, wherein the cell longitude and latitude coordinate database is obtained according to the longitude and latitude coordinates at different moments obtained by at least one terminal with a satellite positioning function based on the satellite positioning function;
and sending a positioning response to the NB-loT terminal, wherein the positioning response carries the longitude and latitude coordinates corresponding to the cell identification.
In the embodiment of the present application, for concepts, explanations, details, and other steps related to the server and related to the technical solution provided in the embodiment of the present application, reference is made to the description of the foregoing method or the related contents in other embodiments, which is not described herein again.
It should be noted that the processor referred to in the embodiments of the present application may be a Central Processing Unit (CPU), 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, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like. The memory may be integrated in the processor or may be provided separately from the processor.
Embodiments of the present application also provide a computer storage medium for storing instructions that, when executed, may perform the method of the foregoing embodiments.
The embodiments of the present application also provide a computer program product for storing a computer program, where the computer program is used to execute the method of the foregoing embodiments.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A method for positioning a narrow-band Internet of things NB-loT terminal is characterized by comprising the following steps:
a server receives a positioning request sent by an NB-loT terminal which does not have a satellite positioning function or cannot have the satellite positioning function, wherein the positioning request carries an identifier of a cell where the NB-loT terminal is located;
the server inquires a longitude and latitude coordinate database of the cell according to the identification of the cell carried in the positioning request to obtain longitude and latitude coordinates corresponding to the identification of the cell, wherein the longitude and latitude coordinate database of the cell is obtained by the server according to the longitude and latitude coordinates which are obtained by at least one terminal with a satellite positioning function based on the satellite positioning function and are sent at different moments;
and the server sends a positioning response to the NB-loT terminal, wherein the positioning response carries the longitude and latitude coordinates corresponding to the cell identifier.
2. The method of claim 1, further comprising:
the server receives position reports sent by at least one terminal with a satellite positioning function at different moments, wherein the position reports comprise an identifier of a cell where the terminal is located and longitude and latitude coordinates obtained by the terminal based on the satellite positioning function;
the server respectively determines longitude and latitude coordinates of different cells according to the cell identification and the longitude and latitude coordinates in the position report sent by the at least one terminal with the satellite positioning function at different moments;
and the server generates a cell longitude and latitude coordinate database according to the longitude and latitude coordinates of different cells.
3. The method as claimed in claim 2, wherein the server determines the longitude and latitude coordinates of different cells according to the cell identification and the longitude and latitude coordinates in the location report sent by the at least one terminal with satellite positioning function at different time, respectively, comprising:
the server determines the average value of the longitude and latitude coordinates according to the identification and the longitude and latitude coordinates of the cell in the position report sent by the at least one terminal with the satellite positioning function at different moments and aiming at the longitude and latitude coordinates corresponding to the identification of the same cell;
and the server determines the average value of the longitude and latitude coordinates as the longitude and latitude coordinates of the cell corresponding to the identifier of the corresponding cell.
4. A server, comprising:
a receiving module, configured to receive a positioning request sent by an NB-loT terminal that does not have a satellite positioning function or is unavailable with the satellite positioning function, where the positioning request carries an identifier of a cell in which the NB-loT terminal is located;
the processing module is used for inquiring a cell longitude and latitude coordinate database according to the identification of the cell carried in the positioning request to obtain longitude and latitude coordinates corresponding to the identification of the cell, wherein the cell longitude and latitude coordinate database is obtained by the server according to the longitude and latitude coordinates which are obtained by at least one terminal with a satellite positioning function based on the satellite positioning function and are sent at different moments;
and the sending module is used for sending a positioning response to the NB-loT terminal, wherein the positioning response carries the longitude and latitude coordinates corresponding to the cell identifier.
5. The server of claim 4, further comprising:
the receiving module is further configured to receive a location report sent by at least one terminal with a satellite positioning function at different times, where the location report includes an identifier of a cell in which the terminal is located and longitude and latitude coordinates obtained by the terminal based on the satellite positioning function;
the processing module is further configured to determine the longitude and latitude coordinates of different cells according to the cell identifiers and the longitude and latitude coordinates in the position reports sent by the at least one terminal with the satellite positioning function at different times, and generate a cell longitude and latitude coordinate database according to the longitude and latitude coordinates of the different cells.
6. The server according to claim 5, wherein the processing module is specifically configured to:
determining the average value of the longitude and latitude coordinates according to the identifications and the longitude and latitude coordinates of the cells in the position reports sent by the at least one terminal with the satellite positioning function at different moments and aiming at the longitude and latitude coordinates corresponding to the identifications of the same cell;
and determining the average value of the longitude and latitude coordinates as the longitude and latitude coordinates of the cell corresponding to the identifier of the corresponding cell.
7. A server, comprising a processor and a memory:
the memory, coupled to the processor, configured to store computer instructions; the processor, coupled to the memory, configured to execute the computer instructions to cause the server to:
receiving a positioning request sent by an NB-loT terminal which does not have a satellite positioning function or is unavailable in the satellite positioning function, wherein the positioning request carries an identifier of a cell in which the NB-loT terminal is located;
inquiring a cell longitude and latitude coordinate database according to the identification of the cell carried in the positioning request to obtain longitude and latitude coordinates corresponding to the identification of the cell, wherein the cell longitude and latitude coordinate database is obtained according to longitude and latitude coordinates which are obtained by at least one terminal with a satellite positioning function and are sent at different moments based on the satellite positioning function;
and sending a positioning response to the NB-loT terminal, wherein the positioning response carries the longitude and latitude coordinates corresponding to the cell identifier.
8. The server of claim 7, wherein the processor is further configured to perform the steps of:
receiving position reports sent by at least one terminal with a satellite positioning function at different moments, wherein the position reports comprise an identifier of a cell where the terminal is located and longitude and latitude coordinates obtained by the terminal based on the satellite positioning function;
respectively determining longitude and latitude coordinates of different cells according to the cell identification and the longitude and latitude coordinates in the position report sent by the at least one terminal with the satellite positioning function at different moments;
and generating a cell longitude and latitude coordinate database according to the longitude and latitude coordinates of different cells.
9. The server of claim 8, wherein the processor is specifically configured to perform the steps of:
determining the average value of the longitude and latitude coordinates according to the identifications and the longitude and latitude coordinates of the cells in the position reports sent by the at least one terminal with the satellite positioning function at different moments and aiming at the longitude and latitude coordinates corresponding to the identifications of the same cell;
and determining the average value of the longitude and latitude coordinates as the longitude and latitude coordinates of the cell corresponding to the identifier of the corresponding cell.
10. A storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114531654A (en) * | 2022-04-24 | 2022-05-24 | 北京中成康富科技股份有限公司 | Network switching method of NB-IoT module |
| WO2023221768A1 (en) * | 2022-05-18 | 2023-11-23 | 京东方科技集团股份有限公司 | Product tracking method and apparatus, and computing device, storage medium and program product |
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