JP2018036059A - Information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processor capable of determining the presence or absence of an error of positional information on a base station.SOLUTION: A positioning section 13 acquires positional information measured on the basis of a satellite signal from a satellite by a mobile device 20. A base station information acquisition section 11 acquires base station information indicating a position of a base station. A determination section 16 determines an error of the base station information on the basis of a position obtained by calculating the positional information acquired by the positioning section 13 and a position obtained from the base station information acquired by the base station information acquisition section 11.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an information processing apparatus that manages base station information.

  2. Description of the Related Art Conventionally, as a method for positioning a mobile device, there is a technique called base station positioning that performs positioning based on location information (information indicating the location of the base station) of a base station where the mobile device is located. In addition, as a method of positioning the mobile device, a server (positioning support server) that supports the positioning of the mobile device uses GPS satellite orbit information, approximate position (general position of the mobile device) as assist data, There is also a positioning system that shortens the positioning time of GPS positioning of the mobile device and improves the positioning accuracy by transmitting it to the mobile device via a network (for example, see Patent Document 1). Specifically, as the approximate position, information specifying the center position (for example, information indicating the position of the base station) of the communication area where the mobile station is located and the error radius of the communication area are one of assist data. Is transmitted from the positioning support server to the mobile device. In this manner, the mobile device can be positioned using information indicating the position of the base station.

JP 2008-175824 A

  However, when there is an error in the position information of the base station (for example, a human error due to an erroneous input by the user), there is a problem that the position of the mobile device cannot be measured accurately.

  The present invention has been made in view of the above, and an object of the present invention is to provide an information processing apparatus that can determine whether there is an error in position information of a base station.

  In order to solve the above-described problem, an information processing apparatus according to the present invention includes: position information obtained by a mobile device based on satellite signals from a satellite; A determination unit that determines an error in the base station information based on a position obtained by calculating the position information acquired by the information acquisition unit and a position indicated by the base station information acquired by the information acquisition unit; Is provided.

  According to the present invention, as a result of comparing the position obtained by calculating the position information acquired from the mobile device and the position indicated by the base station information, the information processing device determines that the position indicated by the base station information If the position information obtained by calculating the position information greatly differs from the position obtained by calculating the base station information, it can be determined that there is an error in the base station information. In this way, it is possible to determine whether there is an error in the base station information.

  According to the present invention, it is possible to determine whether or not there is an error in the location information of the base station.

It is a figure which shows the positioning system which concerns on embodiment of this invention. It is a block diagram of a base station positioning server. It is a figure which shows the structure of the data memorize | stored and produced | generated with a base station positioning server. It is a figure which shows a judgment pattern. It is a figure which shows the hardware constitutions of the base station positioning server which concerns on embodiment of this invention. It is a sequence diagram which acquires a GPS positioning result. It is a flowchart of the process which judges the error of base station information.

  Hereinafter, embodiments of a translation system according to the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 shows a positioning system according to this embodiment. The positioning system includes a base station positioning server 10 (information processing apparatus) that performs base station positioning in order to support positioning calculation by the mobile device 20, the mobile device 20, and the base station 30. The base station 30 is a device related to communication between the mobile device 20 and the base station positioning server 10. In addition, the mobile device 20 performs positioning upon receiving assistance data from the base station positioning server 10 included in the mobile communication network.

  First, a positioning method performed by the mobile device 20 in the present embodiment will be described. In this embodiment, the positioning method performed by the mobile device 20 is GPS (Global Positioning System) positioning (A-GPS positioning) by a network assist method. GPS positioning is a method for determining the position (specifically, latitude, longitude, and altitude) of the mobile device 20 based on position information of GPS satellites by receiving signals from three or more GPS satellites in the sky. However, in order to do this, it is necessary to capture GPS satellites by the mobile device 20, and this processing takes a certain time. For this reason, in GPS positioning by the network assist method, information (assist data) such as the position of the GPS satellite and approximate position information of the mobile device 20 is transmitted from the base station positioning server 10 to the mobile device 20, thereby The processing related to the acquisition of the GPS satellite by 20 and the shortening of the positioning time are attempted. In the present embodiment, the mobile station 20 requests the base station positioning server 10 to provide assist data, and information indicating the approximate position of the mobile station 20 and the GPS satellites from which the mobile station 20 can receive signals. By receiving the position information from the base station positioning server 10, GPS positioning is performed by the mobile device 20 and the position of the mobile device 20 is obtained.

  Among the assist data sent from the base station positioning server 10 to the mobile device 20, the GPS satellite position information is information acquired from an assist data provider (not shown) that manages the GPS satellite orbit information. Is used. On the other hand, as the approximate location information of the mobile device 20, the location information of the base station device that transmits radio waves to the cell (communication area) where the mobile device 20 is located is used. This is because the position of the base station apparatus is determined in advance, so that the position information of the base station apparatus can be stored in the base station positioning server 10 in advance, and information specifying the cell in which the mobile device 20 is located is provided. This is because when transmitted from the mobile device 20, it can be transmitted to the mobile device 20 based on the information.

  The mobile device 20 is used by a user and is realized as a device having a communication function such as a mobile phone and a PDA (Personal Digital Assistance). Furthermore, the mobile device 20 has a function of performing GPS positioning using assist data from the base station positioning server 10. In addition, the mobile device 20 transmits the result of GPS positioning (latitude and longitude calculated by GPS positioning) to the base station positioning server 10. Further, the mobile device 20 stores information (mobile device ID) for identifying the mobile device in advance.

  The base station 30 is a device included in the mobile communication network, and forms a cell by transmitting radio waves to a specific range. When the mobile device 20 is in the cell, the mobile device 20 can perform communication by transmitting and receiving information via the base station 30. Each cell is given a unique cell ID, and this cell ID makes it possible to distinguish which base station 30 is a related cell. The base station 30 communicates with the mobile device 20 at every predetermined timing, and transmits a cell ID to the mobile device 20 at that time. The mobile device 20 receives the cell ID and stores the cell ID.

  Next, the base station positioning server 10 will be described in detail. The base station positioning server 10 includes a base station information acquisition unit 11 (information acquisition unit), a positioning request reception unit 12, a positioning unit 13 (information acquisition unit), and a base station information storage unit 14 (base station information acquisition unit). A positioning information storage unit 15 (position information storage unit), a determination unit 16 (determination unit), and an output unit 17.

  The base station information acquisition unit 11 is a part that acquires base station information indicating the position of the base station (the center position of the cell formed by the base station). The base station information acquisition unit 11 acquires the base station information by receiving base station information from a terminal device (not shown). When acquiring the base station information, the base station information acquisition unit 11 stores the base station information in the base station information storage unit 14. Details of the base station information will be described later.

  The positioning request receiving unit 12 is a part that receives a mobile device ID and a cell ID for identifying the mobile device 20 from the mobile device 20 and receives a positioning request (A-GPS function provision request). When the positioning request receiving unit 12 receives the positioning request, the positioning request receiving unit 12 notifies the positioning unit 13 of the mobile device ID.

  The positioning unit 13 is a part that performs base station positioning as an A-GPS function and provides information based on the base station positioning. When the positioning unit 13 acquires the cell ID and the mobile device ID from the positioning request receiving unit 12, the positioning unit 13 acquires the time (request time) when the positioning request is received from the mobile device 20 by referring to the system clock or the like. The positioning unit 13 temporarily stores the request time in a memory or the like in association with the cell ID and the mobile device ID. The positioning unit 13 refers to the base station information stored in the base station information storage unit 14 (database that manages the base station information) using the acquired cell ID as a search key, and determines the cell corresponding to the cell ID. Get the center position and cell size. As described above, the positioning unit 13 acquires the center position and the cell size of the cell corresponding to the cell ID acquired from the mobile device 20, thereby determining the position of the cell where the mobile device 20 is located (base station). Positioning).

  Here, the information stored in the base station information storage unit 14 will be described. The base station information storage unit 14 stores information on base stations related to the cell (base station information) in association with the cell ID. FIG. 3A shows an example of base station information. As shown in FIG. 3A, the cell ID, the center position (latitude and longitude) of the cell, and the size of the cell are included. As described above, the base station information storage unit 14 stores the cell ID in association with the center position of the cell and the size of the cell. The size of the cell is a radius (error radius) indicating the range of positioning error, and is information that defines the range of the cell. The cell ID is predetermined. The center position of the cell and the size of the cell are information acquired from a terminal device that can communicate with the base station positioning server 10 (not shown). The information is input by a user operation of the terminal device. As described above, since the cell center position and the cell size are input by a user operation of the terminal device, an input error (human error) by the user may occur.

  Returning to FIG. 2, when the positioning unit 13 acquires the center position of the cell corresponding to the cell ID, the satellite orbit information acquired by the positioning unit 13 in advance from a GRN (Global Reference Network) or the like, the center position of the cell, Assist data including cell size is generated. Here, GRN is a provider that provides orbit information such as GPS satellites. The positioning unit 13 generates assist data, and then transmits assist data to the positioning request source mobile device 20 as a positioning request response (A-GPS function providing response). When receiving the assist data, the mobile device 20 performs GPS positioning using the assist data. The mobile device 20 transmits the GPS positioning result (latitude and longitude) to the base station positioning server 10 as a GPS positioning result (positional information).

  The positioning unit 13 acquires the GPS positioning result by receiving the GPS positioning result from the mobile device 20. The positioning unit 13 stores positioning information, which is information including the acquired GPS positioning result, in the positioning information storage unit 15. Here, the positioning information storage unit 15 will be described. The positioning information storage unit 15 is a part that stores GPS positioning results, and is a database that stores information obtained by providing an A-GPS function. FIG. 3B is an example of positioning information. As shown in FIG. 3B, the positioning information includes the time when the A-GPS function provision request is received, the GPS positioning result (latitude / longitude), and the cell ID. The positioning unit 13 stores the request time temporarily stored as described above as the time when the A-GPS function provision request is received, and the GPS positioning result acquired from the mobile device 20 is used as the GPS positioning result (latitude Stores the cell ID stored temporarily as longitude) and temporarily stored. As described above, the positioning unit 13 stores information including the positioning result by the mobile device 20 in the positioning information storage unit 15 as positioning information.

  Subsequently, returning to FIG. 2, the determination unit 16 will be described. The determination unit 16 is a part that determines an error in the base station information based on the position obtained by calculating the GPS positioning result and the position indicated by the base station information. At a predetermined timing (for example, once a month), the determination unit 16 acquires a GPS positioning result for each cell ID from the positioning information storage unit 15. That is, the determination unit 16 acquires a GPS positioning result corresponding to a certain cell ID from the positioning information storage unit 15. As shown in FIG. 3C, the determination unit 16 stores the cell ID and the GPS positioning result in a memory or the like in association with each other. When acquiring, the determination unit 16 may acquire all GPS positioning results corresponding to a certain cell ID, or refer to the time at which the A-GPS function provision request for positioning information is received, within a certain period. You may make it acquire the positioning result corresponding to cell ID.

  The determination unit 16 calculates (calculates) an average value (average values of latitude and longitude) of the GPS positioning results stored in the memory or the like. It is estimated that the GPS positioning results of the mobile devices 20 belonging to a certain cell are distributed around the position of the base station 30. Therefore, the determination unit 16 calculates a position (estimated position) that can be estimated as the position of the base station 30 by calculating the average value of the GPS positioning results as described above.

  In addition, the determination unit 16 calculates index values indicating the degree of dispersion of GPS positioning results stored in a memory or the like (the respective index values for latitude and longitude), and estimates the cell size based on the calculated index values. The value to be calculated is calculated. For example, the determination unit 16 calculates the standard deviation of the GPS positioning result as the index value, and sets a value based on the standard deviation (for example, twice the standard deviation) as the cell size (estimated error radius). . The index value may be a standard deviation or a value based on variance.

  The determination unit 16 refers to the base station information storage unit 14 and obtains the cell center position and the cell size of the base station information corresponding to the cell ID. Subsequently, the determination unit 16 calculates a difference between the center position of the cell corresponding to the cell ID and the estimated position. Further, the determination unit 16 calculates the ratio between the cell size corresponding to the cell ID and the estimated error radius (for example, a value obtained by dividing the larger value of the cell size and the estimated error radius by the smaller value). calculate. When the difference value is smaller than a position threshold value that is a preset threshold value and the ratio is smaller than a range threshold value that is a preset threshold value, the determination unit 16 and the cell center position in the cell ID and Judge that cell size is correct.

  The determination unit 16 determines that the base station information is incorrect when the difference value is greater than or equal to the position threshold value or when the ratio is greater than or equal to the range threshold value. FIG. 4 shows an example of a pattern resulting from determining whether the base station information is incorrect.

  When the communication range C, which is a range based on the cell center position and cell size in the cell ID, is not different from the range formed by the positioning result G by the mobile device 20 as in the pattern PT1, the difference value is greater than the position threshold value. When it is small and the ratio is smaller than the range threshold value), the determination unit 16 determines that it is normal.

  When the center of the communication range C is far away from the center position of the range formed by the positioning result G as in the pattern PT2 and pattern PT3 (the center of the communication range C and the center position formed by the positioning result G) When the difference value is equal to or greater than the position threshold value, the determination unit 16 determines that the base station information is incorrect.

  When the range formed by the positioning result G and the size of the communication range C are significantly different (when the ratio is greater than or equal to the range threshold) as in the pattern PT4 and the pattern PT5, the determination unit 16 Judge that the information is incorrect.

  The determination unit 16 notifies the output unit 17 of the determination result. The determination result includes a cell ID, the presence / absence of an error, a difference value, and a ratio.

  The output unit 17 is a part that outputs the result determined by the determination unit 16. When the output unit 17 obtains the determination result from the determination unit 16, the output unit 17 generates file information including the determination result and stores the file information in a memory or the like. Further, the output unit 17 may output the determination result acquired from the determination unit 16 by transmitting it to another device.

  Next, FIG. 5 shows a hardware configuration of the base station positioning server 10 according to the present embodiment. The functional block (configuration unit) of the base station positioning server 10 is realized by any combination of hardware and / or software. Further, the means for realizing each functional block is not particularly limited. That is, each functional block may be realized by one device physically and / or logically coupled, and two or more devices physically and / or logically separated may be directly and / or indirectly. (For example, wired and / or wireless) and may be realized by these plural devices.

  For example, the base station positioning server 10 according to an embodiment of the present invention may function as a computer that performs base station positioning. The base station positioning server 10 described above may be physically configured as a computer device including a processor 101, a memory 102, a storage 103, a communication module 104, and the like.

  In the following description, the term “apparatus” can be read as a circuit, a device, a unit, or the like. The hardware configuration of the base station positioning server 10 may be configured to include one or a plurality of devices illustrated in the figure, or may be configured not to include some devices.

  Each function in the base station positioning server 10 is performed by reading predetermined software (program) on hardware such as the processor 101 and the memory 102, so that the processor 101 performs an operation and performs communication by the communication module 104, This is realized by controlling reading and / or writing of data in the storage 103.

  The processor 101 controls the entire computer by operating an operating system, for example. The processor 101 may be configured by a central processing unit (CPU) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like. For example, the positioning unit 13 and the determination unit 16 described above may be realized by the processor 101.

  Further, the processor 101 reads a program (program code), a software module, and data from the storage 103 and / or the communication module 104 to the memory 102, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described in the above embodiments is used. For example, the base station positioning server 10 may be realized by a control program stored in the memory 102 and operated by the processor 101, and may be realized similarly for other functional blocks. Although the above-described various processes have been described as being executed by one processor 101, they may be executed simultaneously or sequentially by two or more processors 101. The processor 101 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunication line.

  The memory 102 is a computer-readable recording medium and includes, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), and the like. May be. The memory 102 may be called a register, a cache, a main memory (main storage device), or the like. The memory 102 can store a program (program code), a software module, and the like that can be executed to implement the wireless communication method according to the embodiment of the present invention.

  The storage 103 is a computer-readable recording medium such as an optical disc such as a CD-ROM (Compact Disc ROM), a hard disc drive, a flexible disc, a magneto-optical disc (eg, a compact disc, a digital versatile disc, a Blu-ray). (Registered trademark) disk, smart card, flash memory (for example, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like. The storage 103 may be called an auxiliary storage device. The storage medium described above may be, for example, a database including the memory 102 and / or the storage 103, a server, or other suitable medium.

  The communication module 104 is hardware (transmission / reception device) for performing communication between computers via a wired and / or wireless network, and is also referred to as a network device, a network controller, a network card, or the like.

  Each device such as the processor 101 and the memory 102 is connected by a bus 105 for communicating information. The bus 105 may be configured with a single bus or may be configured with different buses between devices.

  The base station positioning server 10 includes hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA). A part or all of each functional block may be realized by the hardware. For example, the processor 201 may be implemented with at least one of these hardware. The above is the configuration of the base station positioning server 10 according to the present embodiment.

  Next, processing in which the base station positioning server 10 according to the present embodiment acquires a GPS positioning result from the mobile device 20 will be described using the sequence diagram of FIG. In this process, first, the mobile device 20 transmits a mobile device ID and a cell ID and requests to provide an A-GPS function (step S1). The positioning unit 13 of the base station positioning server 10 acquires the requested time, stores the requested time and the cell ID, refers to the base station information storage unit 14, and corresponds to the cell ID. Get information. The positioning unit 13 acquires satellite orbit information, generates assist information including the satellite orbit information and base station information, and transmits the assist information to the mobile device 20 (step S2). The mobile device 20 performs GPS positioning using the assist information, and transmits the GPS positioning result to the base station positioning server 10 (step S3). The positioning unit 13 receives the GPS positioning result, and stores the GPS positioning result, the cell ID, and the requested time in the positioning information storage unit 15 in association with each other.

  Next, processing for determining an error in base station information by the determination unit 16 will be described with reference to the flowchart shown in FIG. First, the determination unit 16 acquires the GPS positioning result corresponding to the cell ID to be determined from the positioning information storage unit 15 (step S11). Subsequently, the determination unit 16 calculates an estimated position and an estimated error radius using the acquired GPS positioning result (step S12). Subsequently, the determination unit 16 acquires base station information corresponding to the cell ID to be determined from the base station information storage unit 14, and calculates a difference between the position indicated by the acquired base station information and the estimated position. Further, the determination unit 16 calculates a ratio between the cell size indicated by the base station information and the estimated error radius (step S13).

  The determination unit 16 determines whether the base station information is erroneous based on the difference and the ratio, and the output unit 17 outputs the determination result (step S14).

  As described above, the positioning unit 13 acquires the position information measured by the mobile device 20 based on the satellite signal from the satellite. In addition, the base station information acquisition unit 11 acquires base station information indicating the position of the base station. Based on the position obtained by calculating the GPS positioning result acquired by the positioning unit 13 and the position obtained from the base station information acquired by the base station information acquiring unit 11, the determining unit 16 Determine the error.

  In this case, the positioning unit 13 obtains the position indicated by the base station information from the mobile station as a result of comparing the position obtained by calculating the position information acquired from the mobile station 20 with the position indicated by the base station information. If the position information is greatly different from the position obtained by calculating the position information, it can be determined that there is an error in the base station information. In this way, it is possible to determine whether there is an error in the base station information.

  The base station information storage unit 14 stores the base station information acquired from the base station information acquisition unit 11, and the positioning information storage unit 15 stores the GPS positioning result acquired from the positioning unit 13. The determination unit 16 acquires base station information stored in the base station information storage unit 14 and acquires a GPS positioning result stored in the positioning information storage unit 15. Based on the result (difference value) obtained by comparing the position obtained by calculating the position information acquired from the mobile device 20 with the position indicated by the base station information, the determination unit 16 determines the error in the base station information. to decide. Thus, the base station positioning server 10 can determine whether or not the base station information is incorrect by using information stored in advance. In addition, the information stored in the base station information storage unit 14 and the positioning information storage unit 15 is acquired from another device, and the determination unit 16 determines an error in the base station information using the acquired information. It may be.

  Further, the base station information includes the size of the cell, and the determination unit 16 calculates an estimation error radius using the positioning information, and based on the estimation error radius and the size of the cell, the base station information Determine the error. In this way, since the error in the base station information is determined by determining whether or not the cell size is appropriate using the positioning result, the base station information is incorrect not only in the position but also in the cell size. It can be determined whether or not.

  Since the determination unit 16 calculates the communication range by calculating the index value indicating the degree of dispersion of the position information, the communication range can be calculated by a simple method.

  In the above-described embodiment, the case where the estimated error radius is compared with the cell size has been described. However, only the position comparison may be performed.

  In the above-described embodiment, the case where the communication range is calculated using the index value indicating the degree of dispersion such as the standard deviation has been described. Instead of this, the communication range may be calculated by another method. For example, the communication range may be calculated using the positioning result that is farthest from the center position and the distance to the center position.

  In the above-described embodiment, a case has been described in which the mobile device 20 receives assist data and transmits a result of positioning using the received assist data to the base station positioning server 10. Instead, the mobile device 20 may transmit the result of positioning using the satellite signal without using the assist data to the base station positioning server 10 as the positioning result.

  Software, whether it is called software, firmware, middleware, microcode, hardware description language, or other names, instructions, instruction sets, codes, code segments, program codes, programs, subprograms, software modules , Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc. should be interpreted broadly.

  Also, software, instructions, etc. may be transmitted / received via a transmission medium. For example, software may use websites, servers, or other devices using wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave. When transmitted from a remote source, these wired and / or wireless technologies are included within the definition of transmission media.

  Information, signals, etc. described herein may be represented using any of a variety of different technologies. For example, data, commands, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these May be represented by a combination of

  Note that the terms described in this specification and / or terms necessary for understanding this specification may be replaced with terms having the same or similar meaning.

  As used herein, the terms “system” and “network” are used interchangeably.

  In addition, information, parameters, and the like described in this specification may be represented by absolute values, may be represented by relative values from a predetermined value, or may be represented by other corresponding information. . For example, the radio resource may be indicated by an index.

  Further, as used herein, the terms “determining” and “determining” encompass a wide variety of actions. “Judgment” and “decision” are, for example, judgment, calculation, calculation, processing, derivation, investigating, looking up (eg, table, Search in a database or another data structure), “ascertaining” ascertaining, “deciding”, etc. In addition, “determination” and “decision” include receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), access ( accessing) (e.g., accessing data in the memory) may be considered as "determined" or "determined". Also, “determination” and “decision” include resolving, selecting, selecting, establishing, comparing, etc. as “determining” and “deciding”. obtain. In other words, “determination” and “determination” may include considering some operation as “determination” and “determination”.

  As used herein, the phrase “based on” does not mean “based only on,” unless expressly specified otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”

  Further, the “means” in the configuration of each apparatus described above may be replaced with “unit”, “circuit”, “device”, and the like.

  As long as the terms “including”, “comprising”, and variations thereof are used herein or in the claims, these terms are inclusive of the term “comprising”. Intended to be Furthermore, the term “or” as used herein or in the claims is not intended to be an exclusive OR.

  Throughout this disclosure, if articles are added by translation, for example, a, an, and the in English, these articles must be clearly indicated otherwise in context, Including multiple things.

  In addition, each aspect / embodiment described in this specification includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W -CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand) ), Bluetooth (registered trademark), other appropriate systems, and / or next-generation systems extended based on these systems.

  In addition, the order of the processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in this specification may be changed as long as there is no contradiction. For example, the methods described herein present the elements of the various steps in an exemplary order and are not limited to the specific order presented.

  Input / output information or the like may be stored in a specific location (for example, a memory) or may be managed by a management table. Input / output information and the like can be overwritten, updated, or additionally written. The output information or the like may be deleted. The input information etc. may be deleted. The input information or the like may be transmitted to another device.

  Each aspect / embodiment described in this specification may be used independently, may be used in combination, or may be switched according to execution. In addition, notification of predetermined information (for example, notification of being “X”) is not limited to explicitly performed, but is performed implicitly (for example, notification of the predetermined information is not performed). Also good.

  Throughout this disclosure, both the singular and the plural are intended to be included unless clearly indicated to be singular.

  Although the present invention has been described in detail above, it will be apparent to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be implemented as modified and changed modes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

DESCRIPTION OF SYMBOLS 10 ... Base station positioning server, 11 ... Base station information acquisition part, 12 ... Positioning request reception part, 13 ... Positioning part, 14 ... Base station information storage part, 15 ... Positioning information storage part, 16 ... Determination part, 17 ... Output , 101 ... processor, 102 ... memory, 103 ... storage, 104 ... communication module, 105 ... bus.

Claims (4)

Position information obtained by the mobile device based on satellite signals from the satellite, and an information acquisition unit for acquiring base station information indicating the position of the base station;
A determination unit that determines an error in base station information based on a position obtained by calculating the position information acquired by the information acquisition unit and a position indicated by the base station information acquired by the information acquisition unit; ,
An information processing apparatus comprising: A location information storage unit that stores location information acquired by the information acquisition unit;
A base station information storage unit that stores the base station information acquired by the information acquisition unit,
The determination unit acquires position information from the position information storage unit, acquires base station information from the base station information storage unit, and calculates the acquired position information, and acquired base station information The information processing apparatus according to claim 1, wherein an error in the base station information is determined based on the position indicated by. The information acquisition unit acquires base station information further including information indicating a range of the base station,
The determination unit is configured to perform base operation based on the range of the position information obtained by calculating the position information acquired by the information acquisition unit and the range of the base station indicated by the base station information acquired by the information acquisition unit. Judging errors in station information,
The information processing apparatus according to claim 1 or 2.   The determination unit calculates a range of the position information by calculating an index value indicating a degree of dispersion of the position information acquired by the information acquisition unit, and the range of the position information, the range indicated by the base station information, The information processing apparatus according to claim 3, wherein an error in the base station information is determined based on the information.

Images