CN113905326B - Indoor user position locating method and device based on 5G network - Google Patents
Indoor user position locating method and device based on 5G network Download PDFInfo
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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
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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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
- H04W4/025—Services making use of location information using location based information parameters
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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
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a 5G network-based indoor user position positioning method and device, which are characterized in that firstly, the corresponding information mapping relation between a target building and a base station is configured, so that the corresponding 5G base station can be matched according to any one target building information, and the reference points of the corresponding relation with the base station cells and floors are configured, so that the reference points can be matched with the corresponding base station cells and floors. The reference signal is sent through the reference point, and the user information of all target 5G users in the target building can be obtained according to the 5G base station signaling.
Description
Technical Field
The invention relates to the technical field of positioning, in particular to a 5G network-based indoor user position positioning method and device.
Background
At present, the rapid development of navigation and positioning technology brings great convenience to the life of people. In the open, location-based service related products such as car navigator, hundred degree map, taxi taking software, etc. have become an indispensable part of people's life. In the indoor, the requirements of people on accurate location services are also strong, such as finding the location of a certain space or facility in a strange building, determining the accurate location of trapped personnel and firefighters during firefighting rescue, pushing advertisements based on the location in a large mall, positioning rooms in outside distribution and the like. For indoor positioning, the information of floors is a very important part of them. However, the current indoor positioning technology has difficulty in accurately positioning the indoor floor. As disclosed in CN108156580a, an indoor floor positioning method based on a smart phone is proposed, which judges whether a user performs a going-up or going-down action by using a going-up or going-down action detection algorithm, if so, further estimates a distance moved in a vertical direction by the user according to air pressure at the beginning and end of going up or going down, and further calculates a change amount of floors between going up and down. The method also realizes positioning among floors, the calculation mode is complex and complicated at the time, if the upstairs and downstairs behaviors are estimated incorrectly, the final floor positioning result is wrong, the air pressures of different users passing through different floors are different, the positioning error rate is high, and the positioning is inaccurate.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an indoor user position positioning method, device, equipment and storage medium based on a 5G network, which can accurately and quickly position a floor where a user is located in a building.
In a first aspect, an embodiment of the present application provides a method for positioning an indoor user location based on a 5G network, including:
an information mapping relation table between any one target building and a corresponding 5G base station is configured, wherein the information mapping relation table comprises target building information and base station information, and the base station information comprises base station geographic information and base station numbers.
Two or more reference points are configured on a selected target floor in any one target building, and the reference points and base station cells of base stations corresponding to the target building and the target building form a corresponding relation;
acquiring base station information of a 5G base station covering a target building, selecting all target 5G users positioned in the target building according to the base station information, and acquiring user information of all target 5G users in the target building in real time, wherein the user information comprises a base station cell corresponding to the target user and signal intensity, and the signal intensity is the signal intensity of a reference signal issued by a reference point which is detected by the target 5G user and forms a corresponding relation with the base station cell.
And determining the floor where the target 5G user is located according to the signal intensity of all the reference signals.
In a first aspect, preferably, the target building information is a target building location, the base station geographic information includes a base station longitude and a base station latitude, and the base station is 5G base station CGI information.
Preferably in the first aspect, the information mapping relation table further includes a base station usage frequency and a base station transmission power.
In a first aspect, preferably, when two reference points are configured in the target building, the acquiring, in real time, user information of all target users in the target building includes:
and acquiring the first signal intensity corresponding to one of the reference signals and the second signal intensity corresponding to the other reference signal received by the target 5G user in real time.
The determining the floor where the target 5G user is located according to the signal intensity of all the reference signals comprises the following steps:
a signal difference between the first signal strength and the second signal strength is calculated.
And determining the floor where the target 5G user is located according to the signal difference.
In a second aspect, an embodiment of the present application provides an indoor user location positioning device based on a 5G network, including:
base station information configuration module: the method is used for configuring an information mapping relation table between any one target building and a corresponding 5G base station, wherein the information mapping relation table comprises target building information and base station information, and the base station information comprises base station geographic information and base station numbers.
The reference point configuration module: and the method is used for configuring two or more reference points on a selected target floor in any target building, and the reference points and the target building and a base station cell of a base station corresponding to the target building form a corresponding relation.
And a user acquisition module: the base station information is used for covering the 5G base station of the target building, so that all target 5G users in the target building are selected according to the base station information, the user information of all target 5G users in the target building is collected in real time, the user information comprises a base station cell corresponding to the target user and signal intensity, and the signal intensity is the signal intensity of a reference signal issued by a reference point which is detected by the target 5G user and forms a corresponding relation with the base station cell.
Floor position determination module: and the floor where the target 5G user is located is determined according to the signal intensity of all the reference signals.
Preferably in the second aspect, the target building information is a target building position, the base station geographic information includes a base station longitude and a base station latitude, and the base station is 5G base station CGI information.
Preferably in the second aspect, the information mapping relation table further includes a base station usage frequency and a base station transmission power.
In a second aspect, when two reference points are configured in the target building, the acquiring, in real time, user information of all target users in the target building includes:
and acquiring the first signal intensity corresponding to one of the reference signals and the second signal intensity corresponding to the other reference signal received by the target 5G user in real time.
The determining the floor where the target 5G user is located according to the signal intensity of all the reference signals comprises the following steps:
a signal difference between the first signal strength and the second signal strength is calculated.
And determining the floor where the target 5G user is located according to the signal difference.
In a third aspect, embodiments of the present application further provide a computer device, including: a memory and one or more processors;
the memory is used for storing one or more programs.
The one or more programs, when executed by the one or more processors, cause the one or more processors to implement the 5G network-based indoor user location positioning method according to any one of the first aspects of the present invention.
In a fourth aspect, embodiments of the present application further provide a storage medium containing computer executable instructions, wherein the computer executable instructions, when executed by a computer processor, are configured to perform the indoor user location positioning method based on the 5G network according to any one of the first aspect of the present invention.
Compared with the prior art, the invention has the beneficial effects that:
according to the method and the system for the information mapping between the target buildings and the base stations, corresponding information mapping relations between the target buildings and the base stations are firstly configured, so that the corresponding 5G base stations can be matched according to any one target building information, reference points of each target building are set, the reference points, base station cells and floors form corresponding relations, and the reference points can be matched to the corresponding base station cells and floors. The reference signal is sent through the reference point, and the user information of all target 5G users in the target building can be obtained according to the 5G base station signaling.
Drawings
FIG. 1 is a flow chart of an indoor user position locating method based on a 5G network of the present invention;
FIG. 2 is a block diagram of an indoor user position locating device based on a 5G network according to the present invention;
FIG. 3 is a block diagram of a computer device according to the present invention;
FIG. 4 is a signal strength distribution diagram of an example of signal difference calculation according to the present invention;
FIG. 5 is a signal strength distribution diagram of another signal difference calculation example of the present invention;
fig. 6 is a signal strength distribution diagram of still another signal difference calculation example of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following detailed description of specific embodiments thereof is given with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the matters related to the present application are shown in the accompanying drawings. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or at the same time. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.
The embodiment of the application provides an indoor user position positioning method, device, equipment and storage medium based on a 5G network, which firstly configures a corresponding information mapping relation between target buildings and base stations, so that corresponding 5G base stations can be matched according to any one target building information, reference points of each target building are set, the reference points, base station cells and floors form a corresponding relation, and the reference points can be matched to the corresponding base station cells and floors. The reference signal is sent through the reference point, and the user information of all target 5G users in the target building can be obtained according to the 5G base station signaling.
The following is a detailed description.
Fig. 1 shows a flowchart of an indoor user location positioning method based on a 5G network according to an embodiment of the present application. Referring to fig. 1, the indoor user position locating method based on the 5G network includes:
step 101: an information mapping relation table between any one target building and a corresponding 5G base station is configured, wherein the information mapping relation table comprises target building information and base station information, and the base station information comprises base station geographic information and base station numbers.
In the embodiment, with the development of mobile communication technology, the construction of the 5G network in China has been brought into a new stage of rapid deployment due to the strong support of the country. How to use the 5G network brings more convenience to production and living and generates more effects is a problem that scientific workers are thinking and researching at present. The large-scale construction of the 5G network continuously improves the indoor deep coverage capacity, and lays a network foundation for realizing indoor multidimensional positioning.
In the embodiment of the application, the corresponding relation between each target building and the 5G base station is firstly established. The target building is any target geographic area, and can be a building, a mall, a teaching building, a square, and the like. Since the focus in this application is on indoor location positioning of user floors, the target building typically has more than one floor in this embodiment, typically including one, two, three or more floors. In the embodiment, in order to establish the relationship between the target building and the base station, an information mapping relationship table is set and allocated to the target building information corresponding to the target building, that is, the geographic position information of the target building can be obtained. The target building information can be matched to the corresponding 5G base station.
Preferably, the target building information is a target building position, and the base station geographic information includes a base station longitude and a base station latitude.
Further, the information mapping relation table also comprises the base station using frequency and the base station transmitting power.
The information related to the 5G base station in the information mapping table described in the embodiment may be as follows:
step 102: and configuring two or more reference points on a selected target floor in any target building, wherein the reference points and base station cells of base stations corresponding to the target building and the target building form a corresponding relation. In the experiment, a plurality of test points can be respectively configured on each floor of any target building, and in practical application, the test points are also the practical positions of users.
The reference point is in an embodiment one of the cells of the 5G base station. For example, in a building, each floor corresponds to a cell, i.e. different floors are covered by different cell networks. For markets, office buildings, high-rise houses and the like with high people flow density, the intelligent equipment network with the network function can receive reference signals sent from a plurality of reference points, and the reference signals are sent by the cells.
Wherein two or more reference points are set, that is, selecting cells of different floors from a plurality of cells in the target building as reference points, for example, selecting cells of the first floor and the third floor as reference points.
The test points are uniformly distributed on each floor, and are uniformly distributed in different floors, so that the signal intensity of the reference signals sent by different reference points is recorded. In the same building, the horizontal coordinates of the test points on different floors in the vertical direction are the same, namely the test points are aligned uniformly in the vertical direction in the building. In the same floor, for example, a test point is selected every 2 meters, and a signal intensity value is recorded in each test point.
Step 103: acquiring base station information of a 5G base station covering a target building, selecting all target 5G users positioned in the target building according to the base station information, and acquiring user information of all target 5G users in the target building in real time, wherein the user information comprises a base station cell corresponding to the target user and signal intensity, and the signal intensity is the signal intensity of a reference signal issued by a reference point which is detected by the target 5G user and forms a corresponding relation with the base station cell.
The information of the base station of the acquisition user can be acquired by acquiring the information of the user terminal held by the user. The terminal equipment necessarily has a 5G network communication function, for example, is a 5G smart phone, and can correspondingly acquire the information of the user by acquiring the communication signaling of the 5G smart phone.
Step 104: and determining the floor where the target 5G user is located according to the signal intensity of all the reference points.
In the foregoing, when two reference points are configured in the target building, correspondingly, the obtaining signal intensities corresponding to reference signals sent by all the reference points received by the target 5G user, and determining, according to the signal intensities of all the reference points, a floor where the user is located includes: and acquiring the first signal intensity corresponding to one of the reference signals and the second signal intensity corresponding to the other reference signal received by the target 5G user in real time. Determining the floor where the target 5G user is located according to the signal intensities of all the reference points comprises calculating a signal difference between the first signal intensity and the second signal intensity; and determining the floor where the target 5G user is located according to the signal difference.
The signal strength is the strength of the reference signal emitted by the reference point. The reference signal is a pilot signal, and is a known signal provided by the transmitting end to the receiving end for channel estimation or channel sounding. So-called pilot signal pilot (trial): refers to signals transmitted in a telecommunication network for measurement or monitoring purposes, which signals are known signals. The location of the frequency domain of such signals, the location of the time domain, the content of the transmission and the power used for the transmission are known.
The horizontal and vertical positioning accuracy is required to be 1-3 meters by the 5G indoor network index, and the interval of the indoor antennas is required to reach 3-6 meters to reach the accuracy, so that the signal strength of the 5G indoor coverage signal in the horizontal direction can be very uniform; in the vertical direction, the wireless signal has 20dB to 40dB of attenuation because of the strength of the signal after the wireless signal passes through the floor reinforced concrete. The signal has such a gradient attenuation every time a floor passes, so that the floor where the mobile phone is located can be judged according to the difference between the reference signal intensity of the floor received by the mobile phone of the same floor and the reference signal intensity difference received from other different floors.
Limited to the propagation characteristics of 5G signals within a building (20 dB to 40dB attenuation of single layer reinforced concrete), a 5G room signal has substantially attenuated to around-110 after passing through two floors; the algorithm requires that the handset can measure a minimum of two reference signals from different floors. Therefore, when the reference signals are selected, the information sources of F1 and F3 are selected as the reference signal pair, so that the mobile phone can receive the reference signals of at least two different floors, and the difference value calculation can be performed. When the high building exceeds 3 floors, the high building is decomposed into a plurality of 3-floor submodels to apply the calculation method in the application.
For example, assume data acquisition work is performed on floors 1, 2, and 3, respectively. One test point is selected every 2m, and 1 signal value is recorded in each test point. The specific data sampled is shown by fig. 4, with the x-axis being the sampled horizontal distance in meters, and the y-axis being the signal strength in dB. Lines a and b show the signal intensity distribution of 2 reference signals at the same horizontal position on each floor, respectively.
In another example, referring to FIG. 5, if the handset is at the floor 2 test point, the measured signal from floor 1 traverses floor 1, attenuating 1PL; the signal received at the same location from floor 3 also traverses floor 1 and attenuates 1PL, so that the two signal intensities are equivalent, which is the characteristic of the two signals received at the test point from floor 2, as follows: the two signal differences (reference signal 1-reference signal 3) are approximately equal to 0. Only the floor wear situation is considered in this example.
In yet another example, as shown in fig. 6, if the handset is at the 3 rd floor test point, the measured first floor signal traverses 2 th floor, attenuating 2PL; the signal of the 3 floors received at the same position does not pass through floors, no attenuation exists, the two signal intensities have a difference of at least 2PL, the characteristic of the two signals received at the 2 floors test points is that the two signal differences (reference signals 1-3) are approximately equal to-2 PL.
As shown in fig. 2, the present application further provides an indoor user location positioning device based on a 5G network, including: a base station information configuration module 201, a reference point configuration module 202, a user information acquisition module 203 and a floor position determination module 204. The base station information configuration module 201 is configured to configure an information mapping relation table between any one target building and a corresponding 5G base station, where the information mapping relation table includes target building information and base station information, and the base station information includes base station geographic information and base station number; a reference point configuration module 202, configured to configure two or more reference points on a selected target floor in any one target building, where the reference points and base station cells of base stations corresponding to the target building and the target building form a corresponding relationship; the terminal position acquisition module 203 is configured to cover base station information of a 5G base station of a target building, so as to select all target 5G users located in the target building according to the base station information, and acquire user information of all target 5G users in the target building in real time, where the user information includes a base station cell corresponding to the target user and signal strength, and the signal strength is signal strength of a reference signal issued by a reference point which is detected by the target 5G user and forms a corresponding relationship with the base station cell; and the floor position determining module 204 is configured to determine a floor where the target 5G user is located according to the signal strengths of all the reference signals.
Correspondingly, in the above, the target building information is a target building position, the base station geographic information includes a base station longitude and a base station latitude, and the base station number is 5G base station CGI information. The information mapping relation table also comprises the using frequency of the base station and the transmitting power of the base station
As shown in fig. 3, an embodiment of the present application further provides a computer device, which is characterized by including: a memory 301, and one or more processors 302.
The memory 301 is configured to store one or more programs.
The one or more programs, when executed by the one or more processors 302, cause the one or more processors to implement the 5G network-based indoor user location positioning method according to any of the present invention.
The present application also provides a storage medium containing computer executable instructions, which when executed by a computer processor, are configured to perform the indoor 5G network-based user location positioning method as provided in the above embodiments, the indoor 5G network-based user location positioning method comprising: configuring an information mapping relation table between any one target building and a corresponding 5G base station, wherein the information mapping relation table comprises target building information and base station information, and the base station information comprises base station geographic information and base station numbers; two or more reference points are configured on a selected target floor in any one target building, and the reference points and base station cells of base stations corresponding to the target building and the target building form a corresponding relation; acquiring base station information of a 5G base station covering a target building, selecting all target 5G users positioned in the target building according to the base station information, and acquiring user information of all target 5G users in the target building in real time, wherein the user information comprises a base station cell corresponding to the target user and signal intensity, and the signal intensity is the signal intensity of a reference signal issued by a reference point which is detected by the target 5G user and forms a corresponding relation with the base station cell.
And determining the floor where the target 5G user is located according to the signal intensity of all the reference signals.
Storage media-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, lanbas (Rambus) RAM, etc.; nonvolatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a second, different computer system connected to the first computer system through a network such as the internet. The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations (e.g., in different computer systems connected by a network). The storage medium may store program instructions (e.g., embodied as a computer program) executable by one or more processors.
Of course, the storage medium containing the computer executable instructions provided in the embodiments of the present application is not limited to the indoor user position locating method based on the 5G network, and may also perform the related operations in the indoor user position locating method based on the 5G network provided in any embodiment of the present application.
The indoor user position positioning device, the device and the storage medium based on the 5G network provided in the foregoing embodiments may perform the indoor user position positioning method based on the 5G network provided in any embodiment of the present application, and technical details not described in detail in the foregoing embodiments may refer to the indoor user position positioning method based on the 5G network provided in any embodiment of the present application.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (8)
1. An indoor user position locating method based on a 5G network is characterized by comprising the following steps:
configuring an information mapping relation table between any one target building and a corresponding 5G base station, wherein the information mapping relation table comprises target building information and base station information, and the base station information comprises base station geographic information and base station numbers;
two or more reference points are configured on a selected target floor in any one target building, and the reference points and base station cells of base stations corresponding to the target building and the target building form a corresponding relation;
acquiring base station information of a 5G base station covering a target building, selecting all target 5G users positioned in the target building according to the base station information, and acquiring user information of all target 5G users in the target building in real time, wherein the user information comprises a base station cell corresponding to the target user and signal intensity, and the signal intensity is the signal intensity of a reference signal issued by a reference point which is detected by the target 5G user and forms a corresponding relation with the base station cell; when two reference points are configured in the target building, user information of all target users in the target building is acquired in real time, wherein the user information comprises first signal intensity corresponding to one reference signal and second signal intensity corresponding to the other reference signal received by a target 5G user;
calculating a signal difference between the first signal strength and the second signal strength when two reference points are configured in the target building according to the signal strengths of all the reference signals; and determining the floor where the target 5G user is located according to the signal difference.
2. The indoor user location positioning method of claim 1, wherein the target building information is a target building location, the base station geographical information comprises a base station longitude and a base station latitude, and the base station number is 5G base station CGI information.
3. The indoor user location positioning method according to claim 1, wherein the information mapping relation table further comprises a base station use frequency and a base station transmission power.
4. An indoor user position locating device based on 5G network, comprising:
base station information configuration module: the method comprises the steps of configuring an information mapping relation table between any one target building and a corresponding 5G base station, wherein the information mapping relation table comprises target building information and base station information, and the base station information comprises base station geographic information and base station numbers;
the reference point configuration module: the method comprises the steps of configuring two or more reference points for a selected target floor in any one target building, wherein the reference points and base station cells of base stations corresponding to the target building and the target building form a corresponding relation;
and the user information acquisition module is used for: the method comprises the steps of acquiring base station information of a 5G base station covering a target building, selecting all target 5G users positioned in the target building according to the base station information, and acquiring user information of all target 5G users in the target building in real time, wherein the user information comprises a base station cell corresponding to the target user and signal intensity, and the signal intensity is the signal intensity of a reference signal issued by a reference point which is detected by the target 5G user and forms a corresponding relation with the base station cell; when two reference points are configured in the target building, user information of all target users in the target building is acquired in real time, wherein the user information comprises first signal intensity corresponding to one reference signal and second signal intensity corresponding to the other reference signal received by a target 5G user;
floor position determination module: for calculating a signal difference between the first signal strength and the second signal strength when two reference points are configured in the target building based on the signal strengths of all of the reference signals; and determining the floor where the target 5G user is located according to the signal difference.
5. The indoor user location positioning device of claim 4, wherein the target building information is a target building location, the base station geographic information comprises a base station longitude and a base station latitude, and the base station number is 5G base station CGI information.
6. The indoor user position location apparatus according to claim 4, wherein the information map further comprises a base station usage frequency, a base station transmission power.
7. A computer device, comprising: a memory and one or more processors;
the memory is used for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the 5G network-based indoor user location positioning method of any of claims 1-3.
8. A storage medium containing computer executable instructions which, when executed by a computer processor, are for performing the 5G network based indoor user location positioning method of any of claims 1-3.
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