Device and method for collecting position reference data in mobile communication network environment

Abstract

The invention discloses a position reference data acquisition device, which comprises a position measuring element, a mobile communication element, a signal strength measuring element, a recording element and a fingerprint establishing element, when the acquisition device moves along a path and is sequentially positioned at a plurality of different positions, the position information of the position measuring element relative to an adjacent environment is calculated according to the position information. The mobile communication element receives a wireless signal from the mobile communication base station, the signal strength measuring element measures and obtains signal strength information relative to each position, the recording element records position information and the signal strength information relative to each position, and the fingerprint establishing element generates a wireless signal fingerprint for a path according to the position information and the signal strength information. The invention also discloses a position reference data acquisition method using the acquisition device, and a positioning method using the wireless signal fingerprint.

Description

Technical Field

[0001] The present invention relates to a device and method for collecting location reference data in a mobile communication network environment and a positioning method, and in particular to a device and method for collecting location reference data in a mobile communication network environment (such as a 3GPP mobile communication network) and a method for positioning using the collected location reference data. Background Art

[0002] Wireless signals are used to collect location reference data in any environment, and then a wireless signal fingerprint corresponding to this environment is generated based on the collected location reference data. Not only can the positioning function be achieved through the wireless signal fingerprint, but the collection results can also be further fed back to adjust the location, number and signal strength of the wireless signal source in the environment.

[0003] For example, in Taiwan Patent No. TWI746474B, a device and method for collecting location reference data in an indoor environment are disclosed, such as Figure 1 As shown, the known acquisition device 100 includes a position measuring element 102, a signal strength measuring element 104, a recording element 106, and a fingerprint establishing element 108. When the acquisition device 100 moves along a path, the position measuring element 102 measures multiple positions of the acquisition device 100 on the path relative to the indoor environment; the signal strength measuring element 104 measures the signal strength from different wireless signal sources at each of the multiple positions; the recording element 106 records the measured multiple positions and the signal strength measured at each of the multiple positions; and the fingerprint establishing element 108 generates a wireless signal fingerprint for the path based on the measured multiple positions and the signal strength measured at each of the multiple positions.

[0004] However, in the above-mentioned known devices and methods for collecting location reference data, there is no implementation method for how the previous device can obtain information related to the exclusive wireless signal sources of a specific operator when all indoor wireless signal sources may belong to different operators, which results in the previous device being unable to produce the exclusive wireless signal fingerprint of the operator.

[0005] Therefore, how to provide a device and method for collecting location reference data and a positioning method that can be applicable to a wide range of outdoor environments and can provide a specific operator's exclusive wireless signal fingerprint when the 3GPP mobile communication network of multiple operators covers a specific area is one of the current important topics. Summary of the invention

[0006] In view of the above problems, the purpose of the present invention is to provide a device and method for collecting location reference data and a positioning method, which are used in conjunction with the mobile communication networks of multiple operators covering a specific area, and can be applicable to a wide range of outdoor environments, thereby providing a specific operator's exclusive wireless signal fingerprint. The specific operator can adjust the number of base stations or the transmission power in a certain area based on the exclusive wireless signal fingerprint, thereby optimizing the mobile communication network coverage in the area.

[0007] To achieve the above-mentioned purpose, the present invention discloses a device for collecting position reference data, which includes a position measuring element, a mobile communication element, a signal strength measuring element, a recording element and a fingerprint establishment element, wherein the collecting device moves along an arbitrarily selected path in a mobile communication network environment. When the collecting device moves along the path and is in a plurality of different positions in sequence, the position measuring element measures the plurality of position information of the collecting device relative to each adjacent environment at each of the plurality of positions, the mobile communication element is used to connect with one or more mobile communication base stations to receive at least one wireless signal from the one or more mobile communication base stations, the signal strength measuring element is used to measure the signal strength of the wireless signals received from the one or more mobile communication base stations at each of the plurality of positions to obtain one or more wireless signal strength information relative to each of the plurality of positions, and the recording element is used to record the measured plurality of position information relative to each of the plurality of positions. and the one or more wireless signal strength information, the fingerprint establishment element is used to generate a wireless signal fingerprint for the path according to the measured multiple position information relative to each of the multiple positions and the one or more wireless signal strength information; wherein the position measurement element measures the distance between the acquisition device and one or more obstacles in the adjacent environment, each of the multiple position information systems respectively includes two-dimensional spatial position information, and each of the two-dimensional spatial position information at least includes two-dimensional coordinate data; the mobile communication element includes a mobile communication card slot for installing a mobile communication card, the mobile communication card matches the mobile communication base stations, so that the mobile communication element performs wireless signal transmission and reception with at least one of the mobile communication base stations under the 3GPP mobile communication network according to the mobile communication card; the mobile communication element receives a wireless signal from the mobile communication base station, and the wireless signal at least includes the encrypted central frequency point information relative to the mobile communication base station and the encrypted physical cell ID (PCI).

[0008] In one embodiment, after receiving the wireless signal, the mobile communication component decrypts the encrypted center frequency information and the encrypted physical cell identifier to obtain the decrypted center frequency information and the decrypted physical cell identifier. The signal strength measurement component measures and obtains the wireless signal strength information corresponding to the decrypted center frequency information based on the wireless signal, the decrypted center frequency information and the decrypted physical cell identifier.

[0009] In one embodiment, the wireless signal strength information measured by the signal strength measuring element is an average value or a median value of the strength of the wireless signal measured within a given time.

[0010] In one embodiment, the recording element respectively records the relative position information, the relative one or more wireless signal strength information, and the relative one or more decrypted physical cell identifiers when the collection device is in different positions.

[0011] In one embodiment, the fingerprint establishment component generates a wireless signal fingerprint for the path based on the relative multiple position information, the relative one or more wireless signal strength information, and the relative one or more decrypted physical cell identifiers when the collection device is at different multiple positions.

[0012] To achieve the above-mentioned purpose, the present invention also discloses a method for collecting location reference data, which comprises the following steps: for a path selected arbitrarily in a mobile communication network environment, measuring a plurality of different locations on the path relative to the mobile communication network environment, wherein when moving along the path and being in a plurality of different locations in sequence, measuring a plurality of location information relative to the surrounding environment at the plurality of locations; receiving at least one wireless signal from one or more mobile communication base stations; measuring the signal strength of the wireless signals received from the mobile communication base stations at each of the plurality of locations to obtain the one or more wireless signal strength information relative to each of the plurality of locations; and generating a wireless signal fingerprint for the path based on the measured plurality of location information relative to the plurality of locations and the one or more wireless signal strength information.

[0013] In one embodiment, the step of measuring a plurality of position information relative to the adjacent environment at the plurality of positions includes measuring a distance between the acquisition device and one or more obstacles in the adjacent environment.

[0014] In one embodiment, the plurality of position information respectively include a two-dimensional spatial position information, and each of the two-dimensional spatial position information at least includes two-dimensional coordinate data.

[0015] In one embodiment, the step of receiving at least one wireless signal from the one or more mobile communication base stations includes transmitting and receiving signals with at least one of the mobile communication base stations based on a mobile communication card installed in the mobile communication element, wherein the mobile communication card matches the mobile communication base stations.

[0016] In one embodiment, the mobile communication component and the mobile communication base station perform signal transmission and reception in a 3GPP mobile communication network.

[0017] In one embodiment, the wireless signal received by the mobile communication element from one or more mobile communication base stations at least includes encrypted central frequency information and encrypted physical cell ID (PCI) of the one or more mobile communication base stations, and the collection method further includes: after receiving the wireless signal, decrypting the encrypted central frequency information and the encrypted physical cell ID to obtain decrypted central frequency information and decrypted physical cell ID; wherein the step of obtaining wireless signal strength information relative to each of the multiple locations includes measuring and obtaining wireless signal strength information corresponding to the decrypted central frequency information based on the wireless signal, the decrypted central frequency information and the decrypted physical cell ID; and the step of generating a wireless signal fingerprint for the path includes generating a wireless signal fingerprint for the path based on the relative position information, the relative wireless signal strength information, and the relative decrypted physical cell ID when located at different multiple locations.

[0018] In one embodiment, the measured wireless signal strength information is an average value or a median value of the strength of the wireless signal measured within a given time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a device for collecting position reference data in an indoor environment in the prior art.

[0020] Figure 2 Schematic diagram of a device for collecting position reference data according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the 5G frequency band distribution of current telecom operators.

[0022] Figure 4 This is a schematic diagram of the collection device moving along an arbitrarily selected path in an embodiment of the present invention.

[0023] Figure 5 The present invention is a flowchart of a method for collecting location reference data according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] A device and method for collecting position reference data and a positioning method according to a preferred embodiment of the present invention will be described below with reference to the relevant drawings, wherein the same elements will be described with the same reference symbols.

[0025] References to "one embodiment" or similar expressions in this specification refer to specific features, structures, or characteristics described in conjunction with the specific embodiment being included in at least one specific embodiment of the present invention. Therefore, the appearance of the phrase "in one embodiment" and similar expressions in this specification does not necessarily refer to the same specific embodiment.

[0026] The algorithm steps and modules described herein are not limited to use with any specific computer or other device. Various general-purpose systems can be used in parallel with software according to the disclosure of the present invention, or use more specialized equipment to implement the steps of the algorithm. In addition, the present invention is not described in any specific language. It should be understood that various programming languages ​​can implement the disclosure of the present invention described herein. Furthermore, a person of ordinary skill in the art should know that the units, databases, modules, functions, attributes, methods, and other aspects of the present invention can be implemented in any combination of software, hardware, and firmware.

[0027] Needless to say, when any module of the present invention is implemented in software, the module can be implemented in the form of an independent computer program, a part of a larger program, a collection of independent software, a statically or dynamically linked program library, a core loadable module, a device driver, and / or by a technician familiar with computer programs in a manner that is now known or will be available in the future.

[0028] In addition, the present invention is not limited to being implemented in any specific operating system or environment. The present invention can also be implemented as a computer program product in any tangible medium form, which has a computer usable program code stored thereon.

[0029] On the other hand, a combination of one or more computer-usable or readable media can be used in the present invention. For example, the computer-usable or readable medium can be (but is not limited to) an electronic, magnetic, optical, electromagnetic, infrared or semiconductor system, device, equipment or propagation medium. More specific computer-readable medium embodiments can include the following (non-limiting examples): an electrical connection composed of one or more connecting wires, a portable computer disk, a hard disk drive, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk (CD-ROM), an optical storage device, a transmission medium (such as an Internet or intranet-based connection), or a magnetic storage device.

[0030] It should be noted that the computer-usable or readable medium can be paper or any suitable medium on which the program can be printed so that the program can be digitized again, such as by optically scanning the paper or other medium, and then compiling, interpreting or other appropriate necessary processing methods, and then it can be stored in the computer memory again. In this article, the computer-usable or readable medium can be any medium for holding, storing, transmitting, disseminating or transmitting program code for processing by the instruction execution system, device or equipment connected thereto.

[0031] The computer-usable medium may include a propagated data signal having the computer-usable program code stored therein, whether in baseband or as part of a carrier wave. Transmission of the computer-usable program code may use any suitable medium, including but not limited to wireless, wired, optical fiber cable, RF, etc.

[0032] In the following disclosure, the relevant description of the present invention will be described with reference to the flowcharts and / or block diagrams of the systems, devices, methods and / or computer program products according to the specific embodiments of the present invention. It is understood that each block in each flowchart and / or block diagram, and any combination of blocks in the flowchart and / or block diagram, can be implemented using computer program instructions.

[0033] These computer program instructions may also be stored on a computer-readable medium to instruct a computer or other programmable data processing device to perform specific functions, and these instructions stored on the computer-readable medium constitute a finished product, the instructions included therein may implement the functions or operations described in the flowchart and / or block diagram.

[0034] Computer program instructions may also be loaded onto a computer or other programmable data processing device to facilitate the execution of system operation steps on the computer or other programmable device. When the instructions are executed on the computer or other programmable device, a computer implementation program is generated to achieve the functions or operations described in the flowchart and / or block diagram.

[0035] Figure 2 Schematic diagram of a device 200 for collecting position reference data according to an embodiment of the present invention.

[0036] Please refer to Figure 2 As shown, a location reference data collection device 200 according to an embodiment of the present invention comprises a location measurement element 202, a mobile communication element 204, a signal strength measurement element 206, a recording element 208 and a fingerprint establishment element 210, wherein the collection device 200 moves along an arbitrarily selected path R in a mobile communication network environment, such as Figure 3 and Figure 4As shown, in the present embodiment, the location reference data collection device 200 may be, for example, a mobile communication device, such as a mobile phone, etc. The mobile communication network environment refers to an environment covered by a mobile communication network, that is, a plurality of mobile communication base stations B1 to B5 are arranged in the environment to provide a mobile communication network covering the environment, wherein the mobile communication base stations B1 to B5 refer to mobile communication base stations corresponding to a specific telecommunications operator. It should be noted that the above description is for example only and is not intended to limit the scope of the present invention.

[0037] Please refer to Figure 2 and Figure 4 As shown, when the acquisition device 200 moves along the path R and is sequentially at different multiple positions, the position measuring element 202 continuously measures multiple position information of the acquisition device 200 relative to the adjacent environment at the multiple positions to generate coordinate information corresponding to each position; in this embodiment, the position measuring element 202 measures the distance between the acquisition device 200 and one or more obstacles in the adjacent environment, wherein the obstacles may be, for example, buildings, trees, natural landscapes, etc., and the present invention is not limited thereto. In one embodiment, the position measuring element 202 may be implemented as a rangefinder, such as a laser rangefinder or an infrared rangefinder. In addition, in this embodiment, each of the multiple position information may include two-dimensional spatial position information, wherein each two-dimensional spatial position information may include at least two-dimensional coordinate data; in this way, the complex calculation formula in the subsequent positioning process (compared to the three-dimensional spatial position) can be reduced, and a lot of calculation time can be saved to achieve the effect of rapid positioning, but the present invention is not limited thereto.

[0038] In addition, the mobile communication element 204 can be signal-connected with the corresponding multiple mobile communication base stations B1-B5 to receive at least one wireless signal from each of the multiple mobile communication base stations B1-B5. In this embodiment, the mobile communication element 204 includes a mobile communication card slot 205 for installing a mobile communication card 300. The mobile communication card 300 matches the mobile communication base stations B1-B5, so that the mobile communication element 204 performs signal transmission and reception with at least one of the mobile communication base stations B1-B5 according to the mobile communication card 300. For example, the mobile communication base stations B1-B5 can be built by A telecommunications operator, and the mobile communication card 300 is a SIM card issued by the same A telecommunications operator, and the mobile communication card slot 205 corresponds to a SIM card slot. In addition, in this embodiment, the mobile communication element 204 and the mobile communication base stations B1-B5 can be signal-connected under the 3GPP mobile communication network to perform signal transmission and reception. It should be noted that the plurality of mobile communication base stations B1 - B5 signal-connected to the mobile communication element 204 are already installed by the corresponding telecommunications operators for their business purposes. Therefore, in this embodiment, no additional wireless signal source (mobile communication base station) needs to be installed.

[0039] Generally speaking, taking the 5G communication protocol as an example, different telecom operators each have multiple new wireless frequency bands (NR (New Radio) bands), such as Figure 4 The frequency band distribution of different telecom operators shown in the figure, in terms of uplink frequency, although each telecom operator has the same NR frequency band such as n3, each telecom operator has its own exclusive n78 frequency band subset. For example, the frequency range of A Telecom's n78 frequency band subset is 3420~3510MHz, the frequency range of B Telecom's n78 frequency band subset is 3510~3570MHz, the frequency range of C Telecom's n78 frequency band subset is 3340~3420MHz, and the frequency range of D Telecom's n78 frequency band subset is 3300~3340MHz. The n78 frequency band subsets exclusive to the aforementioned telecom operators do not overlap with each other. Therefore, if mobile communication base stations B1~B5 are built by telecom operator A, then mobile communication base stations B1~B5 will be connected through the following channels: Figure 4 The applicable frequency bands shown are connected to the corresponding mobile communication devices for signal connection.

[0040] In addition, according to the 3GPP mobile communication protocol, each frequency band subset has a central frequency (Central Frequency). For example, if the n78 frequency band subset is 3.70-3.80 GHz, then its central frequency is 3.75 GHz.

[0041] In addition, each mobile communication base station of each telecommunications operator can be set with a unique number such as PCI=10 (PCI=Physical Cell ID). When a mobile phone can simultaneously receive wireless signals from different mobile communication base stations near the same telecommunications operator, the mobile phone can simultaneously receive the PCI values ​​of different mobile communication base stations and the corresponding wireless signals, so that the mobile phone can follow the instructions of the telecommunications operator's core network and give priority to connecting to a specific mobile communication base station (PCI=x) to access the Internet.

[0042] Moreover, when a mobile phone can simultaneously receive wireless signals from different mobile communication base stations of the same telecommunications operator, the wireless frequency bands of the aforementioned different mobile communication base stations may also be different. For example, a mobile phone may simultaneously receive wireless signals from a mobile communication base station (PCI=A) of the same telecommunications operator located nearby with a wireless frequency band of n1, another mobile communication base station (PCI=B) with a wireless frequency band of n3, and another mobile communication base station (PCI=C) with a wireless frequency band of n1, and so on.

[0043] In the present embodiment, the mobile communication element receives a wireless signal from a mobile communication base station, such as one of the mobile communication base stations B1-B5, and the wireless signal at least includes the encrypted central frequency information and the encrypted physical cell ID (PCI) of the mobile communication base station. In addition, in the present embodiment, after the mobile communication element 204 receives the wireless signal, it first decrypts the encrypted central frequency information and the encrypted physical cell ID to obtain the decrypted central frequency information and the decrypted physical cell ID.

[0044] Please refer to Figure 2As shown, the signal strength measuring element 206 can be implemented as any software and hardware accessories such as programs, modules, devices, etc., for measuring the wireless signal strength of the wireless signals received from the mobile communication base stations B1-B5 at each of the multiple locations, so as to obtain the wireless signal strength information relative to each of the multiple locations. In this embodiment, the signal strength measuring element 206 can measure and obtain the wireless signal strength information corresponding to the decrypted center frequency information based on the wireless signal, the decrypted center frequency information and the decrypted physical cell identifier. In addition, the wireless signal strength information measured by the signal strength measuring element 206 can be the average value or median value of the strength of the wireless signal measured within a given time (e.g., 0.1 seconds to 1.0 seconds: 0.1 seconds to 0.5 seconds; 0.5 seconds to 1.0 seconds; 0.3 seconds to 0.8 seconds, etc.), so that the signal strength measured by the signal strength measuring element 204 can be a relatively stable strength value within a given time. It should be noted that the above description is only for example and is not intended to limit the scope of the present invention.

[0045] As mentioned above, generally, the following measurement indicators are usually used to measure the signal strength or quality of 3GPP wireless mobile communication, such as RSRP (Reference Symbol Received Power Received Signal Strength Indication), whose measurement unit is dBm; RSRQ (Reference Signal Received Quality), whose measurement unit is dB; RSRI (Received Signal Strength Indication), whose measurement unit is dBm; SINR (Signal to Interference Noise Ratio); Bler (Block-error rate), etc. The signal strength measurement element 206 of the present invention can use any one or several measurement indicators to measure the wireless signal strength of the wireless signals, and the present invention is not limited thereto.

[0046] like Figure 2As shown, the recording element 208 is used to record the measured multiple position information relative to multiple positions and one or more signal strength information. In this embodiment, the recording element 208 includes but is not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices, equipment or storage media, such as: computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable optical disk (CD-ROM), optical storage device, transmission medium, or magnetic storage device. In addition, the recording element 208 is not limited to recording data in a volatile or non-volatile manner. In this embodiment, the recording element 208 respectively records the relative position information, the relative one or more wireless signal strength information, and the relative one or more decrypted physical cell identifiers when the collection device 200 is in different positions.

[0047] In addition, the fingerprint establishment component 210 can be implemented as any software and hardware accessories such as programs, modules, devices, etc., for generating a wireless signal fingerprint for the path R based on the measured multiple position information relative to the multiple positions, multiple signal strength information, and the relative one or more decrypted physical cell identifiers. In this embodiment, the fingerprint establishment component 210 generates a wireless signal fingerprint for the path R based on the relative position information, the relative one or more wireless signal strength information, and the relative one or more decrypted physical cell identifiers when the data acquisition device 200 is at different positions. For example, the fingerprint establishment component 210 organizes the relative position information (such as two-dimensional coordinate data, decrypted center frequency information, and decrypted physical cell identifier) ​​and signal strength information (such as wireless signal strength information corresponding to the decrypted center frequency information) measured at each different position on the moving path of the data acquisition device 200 into a database or a table for use as the wireless signal fingerprint of the moving path.

[0048] In addition, it is understandable that if the above-mentioned database or table of wireless signal fingerprints contains more data at different locations, that is, the sampling density of the positions on path R is higher, then the subsequent wireless signal fingerprint will be more accurate. Therefore, the sampling density of the data acquisition device 200 can be set according to the required wireless signal fingerprint accuracy.

[0049] On the other hand, for the locations on the path R that are not actually sampled, the fingerprint creation component 210 can also automatically calculate and interpolate the relative position information and signal strength information of the locations that are not actually sampled in the environment, and list them in the wireless signal fingerprint database or table.

[0050] Next, refer to Figure 5 The method for collecting position reference data according to an embodiment of the present invention is described, wherein Figure 5 The present invention is a flowchart of a method for collecting location reference data according to an embodiment of the present invention.

[0051] like Figure 5 As shown, the method for collecting location reference data of an embodiment of the present invention includes the following steps: for a path selected arbitrarily in a mobile communication network environment, measuring a plurality of different locations on the path relative to the mobile communication network environment, wherein when moving along the path and being in a plurality of different locations in sequence, measuring a plurality of location information relative to the surrounding environment at the plurality of locations (step S01); receiving at least one wireless signal from one or more mobile communication base stations (step S02); measuring the signal strength of the wireless signals received from the mobile communication base stations at each of the plurality of locations to obtain the plurality of wireless signal strength information relative to each of the plurality of locations (step S03); and generating a wireless signal fingerprint for the path based on the measured plurality of location information relative to the plurality of locations and one or more wireless signal strength information (step S04).

[0052] In this embodiment, in step S01 of measuring a plurality of position information relative to the adjacent environment at a plurality of positions, the distance between the acquisition device and one or more obstacles in the adjacent environment is measured.

[0053] In this embodiment, in step S02 of receiving at least one wireless signal from one or more mobile communication base stations, the mobile communication element can transmit and receive signals with at least one of the mobile communication base stations according to the mobile communication card installed in the mobile communication element, wherein the mobile communication card matches the mobile communication base stations. In this embodiment, the mobile communication element and the mobile communication base station transmit and receive signals under the 3GPP mobile communication network.

[0054] In the present embodiment, the mobile communication element receives a wireless signal from a mobile communication base station, and the wireless signal at least includes encrypted central frequency information and an encrypted physical cell ID (PCI) relative to the mobile communication base station. The method for collecting location reference data further includes: after receiving the wireless signal, decrypting the encrypted central frequency information and the encrypted physical cell ID to obtain decrypted central frequency information and decrypted physical cell ID; wherein the step S03 of obtaining wireless signal strength information relative to each of the plurality of locations includes measuring and obtaining wireless signal strength information corresponding to the decrypted central frequency information based on the wireless signal, the decrypted central frequency information and the decrypted physical cell ID; and the step S04 of generating a wireless signal fingerprint for the path includes generating a wireless signal fingerprint for the path based on the relative location information, the relative wireless signal strength information, and the relative decrypted physical cell ID when located at different positions.

[0055] It should be noted that the location reference data acquisition method of this embodiment is used in conjunction with the aforementioned acquisition device 200 . The detailed description of each step of the acquisition method can be referred to the aforementioned embodiment and will not be repeated here.

[0056] In summary, in the device and method for collecting location reference data of the present invention, the collection device moves along an arbitrarily selected path in a mobile communication network environment. When the collection device moves along the path and is in different multiple positions in sequence, the position measuring element measures multiple location information of the collection device relative to the surrounding environment at the multiple positions, the mobile communication element is used to connect to the multiple mobile communication base stations to receive at least one wireless signal from each of the multiple mobile communication base stations, the signal strength measuring element is used to measure the signal strength of the wireless signals received from the mobile communication base stations at each of the multiple positions to obtain signal strength information relative to each of the multiple positions, the recording element is used to record the measured multiple location information and multiple signal strength information relative to the multiple positions, and the fingerprint establishment element is used to generate a wireless signal fingerprint for the path based on the measured multiple location information and multiple signal strength information relative to the multiple positions. Compared with the known technology, the present invention can be applied in the environment of mobile communication network and directly use the existing mobile communication base station to send and receive signals. Therefore, it can be applicable to a wide range of outdoor environments. Not only is the range of applicable environments wider, but it can also be applied in the environment where the mobile communication networks of multiple operators cover a specific area. Therefore, it can be applicable to a wide range of outdoor environments, thereby providing a specific operator's exclusive wireless signal fingerprint. The specific operator can adjust the number of base stations or the transmission power in a certain area according to the exclusive wireless signal fingerprint, so as to optimize the mobile communication network coverage in the area.

[0057] The above description is for illustrative purposes only and is not intended to be limiting. Any equivalent modifications or changes made thereto without departing from the spirit and scope of the present invention should be included in the appended claims.

Claims

1. A device for collecting position reference data, the device moving along an arbitrarily selected path in a mobile communication network environment, the device comprising: A position measuring element, when the acquisition device moves along the path and is in a plurality of different positions in sequence, respectively measures the plurality of position information of the acquisition device relative to each adjacent environment at each of the plurality of positions; A mobile communication element, used for signal connection with one or more mobile communication base stations to receive at least one wireless signal from the one or more mobile communication base stations respectively; A signal strength measuring element is used to measure the signal strength of the wireless signal received from the one or more mobile communication base stations at each of the plurality of locations to obtain wireless signal strength information relative to each of the plurality of locations; A recording element, recording the measured multiple position information relative to the multiple positions and the one or more wireless signal strength information; as well as A fingerprint establishing component, generating a wireless signal fingerprint for the path based on the measured plurality of position information relative to the plurality of positions and the one or more wireless signal strength information; wherein the position measuring element measures the distance between the acquisition device and one or more obstacles in the adjacent environment; The plurality of position information respectively include two-dimensional spatial position information, and each of the two-dimensional spatial position information at least includes two-dimensional coordinate data; The mobile communication element includes a mobile communication card slot for installing a mobile communication card, and the mobile communication card matches the mobile communication base station, so that the mobile communication element transmits and receives wireless signals in a 3GPP mobile communication network according to at least one of the mobile communication card and the mobile communication base station; and The mobile communication component receives a wireless signal from a mobile communication base station, and the wireless signal at least includes encrypted central frequency point information and an encrypted physical cell identifier relative to the mobile communication base station.

2. The collection device as described in claim 1, wherein after the mobile communication component receives the wireless signal, it decrypts the encrypted center frequency information and the encrypted physical cell identifier to obtain the decrypted center frequency information and the decrypted physical cell identifier, and the signal strength measurement component measures and obtains the wireless signal strength information corresponding to the decrypted center frequency information based on the wireless signal, the decrypted center frequency information and the decrypted physical cell identifier.

3. The data collection device as claimed in claim 2, wherein the wireless signal strength information measured by the signal strength measuring element is an average value or a median value of the strength of the wireless signal measured within a given time.

4. The data collection device as described in claim 2, wherein the recording element respectively records the relative location information, the relative one or more wireless signal strength information, and the relative one or more decrypted physical cell identifiers when the data collection device is in different positions.

5. The collection device as described in claim 2, wherein the fingerprint establishment element generates the wireless signal fingerprint for the path based on the relative multiple location information, the relative one or more wireless signal strength information, and the relative decrypted physical cell identifier when the collection device is in different multiple locations.

6. A method for collecting position reference data, comprising: Along an arbitrarily selected path in a mobile communication network environment, measuring a plurality of different positions on the path relative to the mobile communication network environment, wherein when moving along the path and being at different positions in sequence, measuring a plurality of position information relative to a neighboring environment at the plurality of positions respectively; receiving at least one wireless signal from one or more mobile communication base stations respectively; Measuring the signal strength of the wireless signal received from the mobile communication base station at each of the plurality of locations to obtain the one or more wireless signal strength information relative to each of the plurality of locations; as well as A wireless signal fingerprint is generated for the path according to the measured multiple position information relative to the multiple positions and the one or more wireless signal strength information.

7. The collection method as claimed in claim 6, wherein the step of measuring the plurality of position information relative to the adjacent environment at the plurality of positions comprises measuring the distance between the collection device and one or more obstacles in the adjacent environment.

8. The acquisition method as described in claim 6, wherein the plurality of position information respectively include two-dimensional spatial position information, and each of the two-dimensional spatial position information at least includes two-dimensional coordinate data.

9. The collection method as described in claim 6, wherein the step of receiving the at least one wireless signal from the one or more mobile communication base stations includes transmitting and receiving signals with at least one of the mobile communication base stations based on a mobile communication card installed in the mobile communication element, wherein the mobile communication card matches the mobile communication base station. 10 . The collection method as claimed in claim 9 , wherein the mobile communication component and the one or more mobile communication base stations perform wireless signal transmission and reception under a 3GPP mobile communication network.

11. The acquisition method as claimed in claim 6, wherein the wireless signal received by the mobile communication element from the one or more mobile communication base stations at least includes encrypted central frequency information and encrypted physical cell identifiers of the one or more mobile communication base stations, and the acquisition method further comprises: After receiving the wireless signal, decrypting the encrypted central frequency information and the encrypted physical cell identifier to obtain decrypted central frequency information and a decrypted physical cell identifier; in, The step of obtaining the wireless signal strength information relative to each of the plurality of locations includes measuring and obtaining the wireless signal strength information corresponding to the decrypted center frequency information according to the wireless signal, the decrypted center frequency information and the decrypted physical cell identifier; The step of generating the wireless signal fingerprint for the path includes generating the wireless signal fingerprint for the path according to the relative position information, the relative wireless signal strength information, and the relative decrypted physical cell identifier when located at different positions.

12. The collection method as claimed in claim 11, wherein the measured wireless signal strength information is an average value or a median value of the strength of the wireless signal measured within a given time.

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