KR101669562B1 - System and method of positioning for mobile terminal using access point - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and method for confirming the location of a mobile terminal using an access point and, more particularly, to a system and method for identifying a location of a mobile terminal using information generated for short- And more particularly to a system and method for validating a system.
The location confirmation system of the mobile terminal supporting the short-range wireless communication and the mobile communication using the access point receives the short-range wireless communication information including the location information of the access point (AP) accessed by the mobile terminal, A mobile communication position information reception unit for receiving position measurement information using a mobile communication signal with respect to the mobile terminal, and a mobile communication position information reception unit for receiving the mobile communication signal based on the difference between measured values included in the short- And a position determination unit for determining the position of the terminal.

Description

[0001] SYSTEM AND METHOD FOR POSITIONING FOR MOBILE TERMINAL USING ACCESS POINT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and method for confirming the location of a mobile terminal using an access point and, more particularly, to a system and method for identifying a location of a mobile terminal using information generated for short- And more particularly to a system and method for validating a system.

2. Description of the Related Art With the recent development of mobile communication technology and the widespread use of mobile terminals capable of using mobile communication, mobile terminals such as a cellular phone, a smart phone, a PDA, and an FMC terminal are recognized as essential devices for most people.

Accordingly, the user of the mobile terminal can always know the location of the mobile terminal by knowing the location of the mobile terminal, and can easily grasp the location of the mobile terminal.

The mobile communication service provider measures the position of the mobile terminal by using the intensity of a signal transmitted / received between the base station and the mobile terminal, and provides the measured position to the user of the mobile terminal.

However, when the position of the mobile terminal using the base station is measured according to the related art, the position of the mobile terminal is not accurately measured since the coverage of the base station includes a range of at least 500 meters to several kilometers.

In addition, as the technology of mobile communication technology and the mobile terminal according to this technology develops, the functions of the mobile terminal are increasing day by day. Especially, the movements of FMC phone and smart phone using FMC (Fixed Mobile Convergence) Terminals are emerging.

Accordingly, a user can simultaneously use a mobile communication service over a mobile communication network and a wireless network service through an access point (AP) using a single terminal, and an access point AP ) Is gradually increasing.

When the mobile terminal accesses an access point (AP) to perform wireless data communication, authentication information and data communication information for wireless data communication are generated, and this information is transmitted to the access point (AP) And the like.

In an embodiment of the present invention, information on a location of a mobile terminal, which is measured by a mobile communication system, is used as information of a location of a mobile terminal through an access point (AP) And a positioning system and method for improving positioning accuracy of a mobile terminal.

As a technical means for achieving the above technical object, a first aspect of the present invention is a mobile communication system including a short range wireless access point for receiving short range wireless communication information including location information of an access point (AP) A mobile communication position information receiving unit for receiving position measurement information using the mobile communication signal with respect to the mobile terminal, and a mobile communication position information receiving unit for receiving the local radio communication information and the measurement value included in the position measurement information, And a location determination unit that determines a location of the access point based on the location information of the mobile terminal.

In the first aspect of the present invention, the short range wireless communication information receiver may include an authentication information receiver for receiving authentication information including information on authentication performed to determine whether wireless communication is provided to the mobile terminal, And a data communication information receiving unit for receiving data communication information including information on data communication performed by the mobile terminal, wherein the position determining unit obtains the most recently generated information from the authentication information and the data communication information The location of the mobile terminal can be determined based on the difference between the acquired information and the time and location included in the location measurement information.

According to a second aspect of the present invention, there is provided a mobile communication method comprising the steps of: (a) receiving information about authentication performed to determine whether a wireless communication is provided to a mobile terminal that is an object of location verification; (b) (C) receiving position measurement information using a mobile communication signal with respect to the mobile terminal, (d) receiving information on the authentication and information on the data communication, (E) determining a position of the mobile terminal by comparing the obtained information with the position measurement information, and (f) comparing the determined position of the mobile terminal with the position of the mobile terminal Or a server, wherein the information on the authentication includes a location of an access point (AP) accessed by the mobile terminal and a location of the access point Wherein the information on the data communication includes a location of an access point connected to the mobile station and a time when the data communication is performed, and the location measurement information is used to measure a location using the mobile communication signal A short-range wireless communication using an access point including one time and a measured position, and a method of determining a position of a mobile terminal supporting mobile communication.

According to an aspect of the present invention, there is provided a mobile communication system, comprising: information about authentication for determining whether to provide wireless communication with a mobile terminal; information about data communication performed by the mobile terminal through an access point; The position of the mobile terminal can be compared with the measured position information.

Brief Description of the Drawings Fig. 1 is a diagram illustrating a configuration of a mobile terminal location determination system using an access point (AP) according to an embodiment of the present invention;
2 is a diagram illustrating a configuration of a location check server according to an embodiment of the present invention;
3 is a flowchart illustrating a method of determining a location of a mobile station using an access point according to an embodiment of the present invention.
4 is a flowchart illustrating a method for providing location history information of a mobile station using an access point according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

FIG. 1 is a diagram illustrating a configuration of a mobile terminal location determination system using an access point (AP) according to an embodiment of the present invention.

In an embodiment of the present invention, the mobile terminal 10 can perform voice communication, data communication, and the like through the mobile communication system, and can also perform wireless Internet, wireless data transmission, and reception through the wireless communication system. The mobile terminal 10 may include a smart phone, a PDA (Personal Digital Assistant), a FMC (Fixed Mobile Convergence) phone, and the like.

The mobile terminal 10 may access the data providing server 50 through an access point (AP) 20 to perform wireless communication. When the mobile terminal 10 accesses the access point 20, information of the mobile terminal 10, for example, an IP (Internet Protocol) address, a MAC address, USIM information of the mobile terminal 10, Etc. are transmitted to the access point 20.

The access point 20 transmits the information of the received mobile terminal 10 to the mobile terminal authentication server 30 and the mobile terminal authentication server 30 transmits the information of the mobile terminal 10 10).

The mobile terminal authentication server 30 authenticates the mobile terminal 10 to determine whether wireless communication is to be provided, and transmits the authentication result to the gateway 40. [ The mobile terminal 10 authenticated by the mobile terminal authentication server 30 can perform data communication with the data providing server 50 through the gateway 40. [

The location of the mobile terminal 10 can be measured through the mobile communication location server 70 of the mobile communication system. That is, the position measurement server 70 for mobile communication with respect to the mobile terminal 10 located in the coverage of the base station 60 can measure approximate positional information using a mobile communication signal or the like.

The authentication information acquisition server 100 acquires the authentication information of the mobile terminal 10 from the authentication server 30. [ That is, the authentication information obtaining server 100 obtains the authentication information for the mobile terminal 10 performed by the authentication server 30. [ The authentication information acquired by the authentication information acquisition server 100 may include identification information of the mobile terminal 10, identification information or location information of the access point 20, authentication execution time, connection completion time, and the like.

The data communication information acquisition server 200 acquires information on data communication performed by the mobile terminal 10 with the data providing server 50 through the access point 20 and the gateway 40. [

The data communication information acquired by the data communication information acquisition server 200 may include identification information of the mobile terminal 10, identification information or location information of the access point 20, data communication time information, and the like.

The location confirmation server 300 receives the authentication information for the mobile terminal 10 from the authentication information acquisition server 100 and receives the data communication information for the mobile terminal 10 from the data communication information acquisition server 200 .

The location confirmation server 300 receives the location measurement information based on the mobile communication system from the mobile communication location measurement server 70 and transmits the location measurement information based on the received mobile communication system to the authentication And the data communication information acquired from the data communication information acquisition server 200 are compared with each other.

When the comparison result between the location measurement information based on the mobile communication system and the authentication information or the data communication information satisfies a predetermined condition, the location confirmation server 300 determines the location of the mobile terminal 10 Information to the terminal 80 requesting the location information of the mobile terminal 10.

2 is a diagram illustrating a configuration of a location server according to an embodiment of the present invention.

The location confirmation server 300 according to an embodiment of the present invention includes a short range wireless communication information receiving unit 310, a mobile communication location information receiving unit 320, a location service providing unit 340, a location determining unit 350, A database 331, a data communication information database 332, and a location information database 333 for mobile communication.

The short range wireless communication information receiving unit 310 includes an authentication information receiving unit 312 and a data communication information receiving unit 314 and receives authentication information or data from an authentication information obtaining server And receives short-range wireless communication information including communication information.

The authentication information receiving unit 312 receives the authentication information performed by the authentication information obtaining server for the mobile terminal performing wireless communication through the access point. As described above, the authentication information may include identification information of the mobile terminal, identification information or location information of the access point, authentication execution time, connection completion time, and the like.

The data communication information receiving unit 314 receives information on data communication performed by the mobile terminal from the data communication information obtaining server through the access point. As described above, the data communication information may include identification information of the mobile terminal, identification information or location information of the access point, data communication time information, and the like.

The mobile communication position information receiving unit 320 receives the position information of the mobile terminal calculated by the mobile communication system. The location information of the mobile terminal based on the mobile communication system includes information on the location of the mobile terminal as well as information on the location of the mobile terminal.

The authentication information database 331, the data communication information database 332 and the mobile communication location information database 333 are respectively managed by the authentication information receiving unit 312, the data communication information receiving unit 314 and the mobile communication location information receiving unit 320 And stores the received authentication information, data communication information, and location information for mobile communication.

The location service provider 340 receives a request for location information for a mobile terminal from a specific terminal or a server and transmits information about the requested mobile terminal to the location determination unit 350. The location service providing unit 340 receives the location information of the mobile terminal from the location determining unit 350 and transmits the location information to the requesting terminal or server.

In addition, the location service provider 340 receives a request for information including a location history of the mobile terminal from a specific terminal or server, and transmits information about the requested mobile terminal to the location determination unit 350. The location service provider 340 receives the location history information about the mobile terminal from the location determination unit 350 and transmits the location history information to the terminal or the server that has requested the information.

The location determination unit 350 receives the location information request for the mobile terminal from the location service provider 340 and receives the location information request from the authentication information database 331, the data communication information database 332, and the mobile communication location information database 333 Data communication information and position measurement information based on the mobile communication system, and compares the received information with each other to determine the location of the mobile terminal.

More specifically, the positioning unit 350 extracts the authentication time and the data communication time from the received authentication information and the data communication information, and extracts the most recent one of the extracted authentication time and data communication time.

For example, when the authentication time and the data communication time are 14:30 and 14:36 of the same characters, the positioning unit 350 extracts the data communication time.

The positioning unit 350 compares the extracted time, for example, the data communication time with the position measurement time included in the position measurement information based on the mobile communication system, and sets the difference between the data communication time and the position measurement time as a preset threshold value Compare.

When the difference between the data communication time and the position measurement time is less than or equal to a preset threshold value, the difference between the time when the data communication is performed and the time when the position is measured by the mobile communication system does not exceed the preset time, It is less likely to travel a large distance from the position measured by the communication system. In other words, there is not enough time for the mobile terminal to travel a long distance.

 In this case, the positioning unit 350 extracts the position information of the access point from which the mobile terminal has performed the data communication based on the data communication information, compares the extracted position information with the position information measured by the mobile communication system, And the distance between the position measured by the mobile communication system and the position measured by the mobile communication system is compared with a preset threshold value.

When the difference between the position of the access point and the position measured by the mobile communication system is less than a preset threshold value, the positioning unit 350 determines the position of the access point as the position of the mobile terminal.

That is, when the difference between the position of the access point and the position measured by the mobile communication system is equal to or less than a predetermined threshold value, the mobile terminal is less likely to move greatly from the actual position at the time of position measurement by the mobile communication system, The location determination unit 350 determines the location of the access point as the location of the mobile terminal.

In this way, the location measured by the mobile communication system may differ from the location of the actual mobile terminal, the coverage of the access point is 50 to 100 meters, and the coverage in the indoor is narrower, When the difference between the time and the measurement result and the data communication time or the authentication time most recently performed by the mobile terminal through the access point and the position of the access point is equal to or less than a preset threshold value, The location of one access point can be determined as the location of the mobile terminal.

In addition, the location determination unit 350 receives a location history information request from the location service provider 340 for the mobile terminal. The location history information request received by the location determination unit 350 may include a location history condition. For example, the location determination unit 350 may receive the location history information request of the mobile terminal for a specific period.

The positioning unit 350 receives authentication information, data communication information, and position measurement based on the mobile communication system from the authentication information database 331, the data communication information database 332, and the mobile communication position information database 333, And extracts the location information of the mobile terminal corresponding to the history inquiry condition included in the location history information request from the received information.

For example, when a location history for a specific time is requested, the location determination unit 350 uses the time information included in the received information to calculate authentication information, data communication information, and location measurement information .

The position determination unit 350 generates position history information including position information of the access point connected to the mobile terminal and position information measured through the mobile communication signal from the extracted authentication information, data communication information, and position measurement information, And transmits one location history information to the location service provider 340.

3 is a flowchart illustrating a method of determining a location of a mobile terminal using an access point according to an embodiment of the present invention.

In step S105, the location confirmation server receives authentication information for one or more mobile terminals from the authentication information acquisition server. The authentication information includes time information for performing authentication with respect to a mobile terminal accessing an access point (AP) and requesting wireless communication, and information on an access point accessed by the mobile terminal at the time of authentication, do.

In step S110, the location confirmation server receives information on data communication performed with respect to one or more mobile terminals from the data communication information acquisition server. The data communication information includes time information of a mobile terminal connecting to an access point and performing data communication, and information of a connected access point, in particular, location information of an access point.

In step S115, the location server receives location measurement information for one or more mobile terminals generated by the mobile communication system. The position measurement information generated by the mobile communication system is position information measured for a mobile terminal located within the coverage of the base station included in the mobile communication system and can be generated using a signal transmitted and received between the base station and the mobile terminal.

In step S120, the location confirmation server receives a location information request for a specific mobile terminal from a terminal or a server to which the mobile terminal location information is provided. The location information request may include information of a specific mobile terminal, for example, a mobile communication telephone number, a USIM information, a MAC (Media Access Control) address, and an IP (Internet Protocol) address of a mobile terminal.

In step S125, the location confirmation server determines whether or not the location information received in step S120 from the authentication information on the one or more mobile terminals received in step S105 and the data communication information on one or more mobile terminals received in step S110 And extracts authentication information and data communication information corresponding to the information of the mobile terminal.

That is, the location confirmation server determines whether or not the location information received from the location information request received in step S120 among the authentication information for the mobile terminal received in step S105 and the data communication information on the mobile terminal received in step S110 And extracts information about the terminal.

Also, the location confirmation server extracts location measurement information corresponding to the information of the mobile terminal received in step S120 among the location measurement information for one or more mobile terminals based on the mobile communication system received in step S115.

In step S130, the location confirmation server again obtains the most recently generated information from the authentication information and data communication information extracted in step S125. That is, the location confirmation server compares the authentication time information and the data communication time information included in the authentication information and the data communication information extracted in step S125 to obtain the wireless communication use information generated in the most recent time.

Also, the location confirmation server obtains the location measurement information generated in the most recent time among the location measurement information for the mobile terminal based on the mobile communication system extracted in step S125.

In step S135, the location determination server compares the time information of the wireless communication use information acquired in step S130 with the time information of the location measurement information based on the mobile communication system, It is determined whether or not the difference in the position measurement time is equal to or less than a preset threshold value.

That is, the location check server determines whether the difference between the time when the mobile terminal requesting the location information uses the wireless communication and the time when the location is measured by the mobile communication system is a predetermined time threshold value, for example, 10 minutes or less .

In step S140, if it is determined in step S135 that the difference between the wireless communication use time and the location measurement time based on the mobile communication system is less than or equal to a preset threshold value, The location information of the access point included in the usage information is compared with the location information measured based on the mobile communication system to determine whether the difference between the location of the access point and the location measured on the basis of the mobile communication system is less than a predetermined threshold .

That is, when the difference between the wireless communication use time and the position measurement time by the mobile communication system does not exceed the predetermined time, the reliability is recognized with respect to the positioning using the access point in terms of the measurement time. It is determined whether or not the distance between the positions measured based on the communication system exceeds a predetermined distance.

If it is determined in step S145 that the difference between the position of the access point connected to the mobile terminal and the position measured on the basis of the mobile communication system is equal to or smaller than a preset threshold value in step S140, (AP) location information based on the location information (AP), to the terminal or server that requested the location information in step S120.

The location information of the access point (AP) may include the address where the access point is installed, and in particular may include information on the vertical position relative to the ground, i.e., the number of layers on which the access point is installed.

In step S150, if it is determined in step S135 that the difference between the wireless communication use time and the position measurement time based on the mobile communication system exceeds a predetermined threshold value, or if it is determined in step S140 that the access If it is determined that the difference between the location of the point and the distance of the location measured based on the mobile communication system exceeds a preset threshold value, In step S120, the location measurement information of the terminal or server requesting the location information.

4 is a flowchart illustrating a method of providing location history information of a mobile station using an access point according to an embodiment of the present invention.

In step S205, the location confirmation server receives a request for location history information for a specific mobile terminal. The location history information request may include information of a specific mobile terminal, for example, a mobile communication telephone number, a USIM information, a MAC address, and an IP address of the mobile terminal. In addition, the location history information request may include a condition such as a location history inquiry condition, for example, a specific period.

In step S210, the location server receives the location measurement information for one or more mobile terminals generated by the mobile communication system, and receives, from the received location measurement information, the location information included in the location history information request received in step S205 And acquires position measurement information corresponding to information of a specific mobile terminal. The location measurement information may include information of the mobile terminal, for example, a mobile communication telephone number of the mobile terminal, location measurement time, and measured location information.

For example, if the information of the specific mobile terminal received in step S205 is' 010-1234-5678 ', which is the mobile communication phone number of the mobile terminal, the location check server extracts the mobile communication phone number' 010-1234-5678 '. < / RTI >

In step S215, the location confirmation server receives short range wireless communication information for one or more mobile terminals from the authentication information acquisition server or the data communication information acquisition server. The short-range wireless communication information includes authentication information or data communication information for a mobile terminal connected to an access point (AP), and information about the mobile terminal, for example, a MAC address of the mobile terminal, USIM information, Location information of the accessed access point, authentication time, or data communication execution time information.

The location confirmation server obtains the short distance wireless communication information corresponding to the information of the specific mobile terminal included in the location history information request received in step S205 from the short distance wireless communication information received from the authentication information obtaining server or the data communication information obtaining server do.

For example, if the information of the specific mobile terminal received in step S205 is '00 -1A-2B-3C-4D-5E', which is the MAC address of the mobile terminal, It is possible to obtain the local area wireless communication information corresponding to the address '00 -1A-2B-3C-4D-5E '.

In step S220, the location confirmation server receives the location history inquiry condition included in the location history information request received in step S205 from the location measurement information and the short-range wireless communication information acquired in steps S210 and S215 Acquires corresponding location information or local area wireless communication information, and extracts location information of one or more mobile terminals from the obtained location information.

That is, the location check server extracts the measurement time information and the measured location information from the location measurement information corresponding to the location history inquiry condition, and extracts the authentication time or data communication time information from the short distance wireless communication information corresponding to the location history inquiry condition, The location information of the access point to which the terminal is connected is extracted.

In step S225, the location server provides one or more measured location information extracted in step S220 and location information of the access point to the terminal or the server that requested location history information as information on the location of the mobile terminal.

The location confirmation server may sort the location information of the mobile terminal by time using the measurement time information, the authentication time information and the data communication time information extracted in step S220 and provide the location history information to the terminal or the server .

One embodiment of the present invention may also be embodied in the form of a recording medium including instructions executable by a computer, such as program modules, being executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, the computer-readable medium can include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes any information delivery media, including computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism.

While the methods and systems of the present invention have been described in connection with specific embodiments, some or all of those elements or operations may be implemented using a computer system having a general purpose hardware architecture.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

10:
20: Access point (AP, Access Point)
70: Position measurement server for mobile communication
100: Authentication information acquisition server
200: Data communication information acquisition server
300: location server

Claims (10)

A location confirmation system of a mobile terminal supporting near field wireless communication and mobile communication using an access point,
A short range wireless communication information receiver for receiving short range wireless communication information including location information of an access point (AP) accessed by a mobile terminal,
A mobile communication position information receiver for receiving position measurement information using the mobile communication signal with respect to the mobile terminal;
And a position determination unit for comparing the difference between the short-range wireless communication information and the measurement value included in the position measurement information with a predetermined threshold value to determine a position of the mobile terminal,
, ≪ / RTI &
The short-range wireless communication information receiver
An authentication information receiver for receiving authentication information including information on authentication performed to determine whether wireless communication is provided to the mobile terminal;
A data communication information receiving unit for receiving data communication information including information on data communication performed by the mobile terminal through the access point,
Lt; / RTI >
The positioning unit obtains the most recently generated information from the authentication information and the data communication information, and transmits the location information to the mobile terminal based on the difference between the acquired information and the time and location measurement values included in the location measurement information. And determining a location of the location.
delete The method according to claim 1,
When the acquired information is authentication information, the location determination unit determines the location of the access point connected to the mobile terminal when the authentication time and the authentication time included in the authentication information are performed, And determines the location of the mobile terminal in comparison to the time and the measured location.
The method of claim 3,
When the difference between the authentication time and the position measurement time and the difference between the position of the access point and the measured position are respectively less than a predetermined threshold value, the position determination unit determines the position of the access point as the position of the mobile terminal A positioning system.
The method according to claim 1,
If the acquired information is data communication information, the location determination unit may include in the location measurement information the data communication time included in the data communication information and the location of the access point connected to the mobile terminal when the data communication is performed And determining a position of the mobile terminal by comparing the measured position with the measured position.
6. The method of claim 5,
When the difference between the data communication time and the position measurement time and the difference between the position of the access point and the measured position are respectively equal to or less than a preset threshold value, the positioning unit determines the position of the access point as the position of the mobile terminal Gt; system. ≪ / RTI >
The method according to claim 1,
The location determination unit receives the location history request and the location history condition for the mobile terminal, obtains location information corresponding to the condition from the short-range wireless communication information and the location measurement information, and generates location history information for the mobile terminal and,
Wherein the generated location history information is provided to the device that requested the location history for the mobile terminal.
A method for determining a location of a mobile terminal supporting near field wireless communication and mobile communication using an access point,
(a) receiving information about an authentication performed to determine whether or not short-range wireless communication is provided to a mobile terminal that is an object of location confirmation,
(b) receiving information about data communication performed for the mobile terminal,
(c) receiving location measurement information using the mobile communication signal for the mobile terminal,
(d) obtaining information about the authentication and the most recently generated information of the data communication,
(e) determining a position of the mobile terminal by comparing a difference between the obtained information and a measured value included in the position measurement information with a preset threshold value, and
(f) providing the determined location of the mobile terminal to the terminal or server requesting the location confirmation of the mobile terminal
Lt; / RTI >
Wherein the information on the authentication includes a location of an access point (AP) accessed by the mobile terminal and a time when the authentication is performed,
Wherein the information on the data communication includes a location of an access point connected to the mobile terminal and a time when the data communication is performed,
Wherein the position measurement information includes a position measurement time and a measured position using the mobile communication signal,
Acquires the most recently generated information from the authentication information and the data communication information, and determines the position of the mobile terminal based on the difference between the acquired information and the time and position values included in the position measurement information Gt; position, < / RTI >
9. The method of claim 8,
The step (e)
(e1) comparing the time at which the data communication was performed with the position measurement time if the acquired information is information on data communication,
(e2) comparing the position of the access point included in the data communication information with the measured position included in the position measurement information if the difference between the data communication time and the position measurement time is less than or equal to a predetermined threshold value, and
(e3) if the difference between the position of the access point included in the data communication information and the measured position included in the position measurement information is equal to or less than a preset threshold value, the position of the access point is determined as the position of the mobile terminal step
/ RTI >
9. The method of claim 8,
The step (e)
(e4) comparing the time at which the authentication is performed with the position measurement time if the acquired information is information about authentication,
(e5) comparing the position of the access point included in the authentication information with the measured position included in the position measurement information if the difference between the authentication execution time and the position measurement time is less than or equal to a preset threshold value And
(e6) determining the position of the access point as the position of the mobile terminal when the difference between the position of the access point included in the authentication information and the measured position included in the position measurement information is less than a preset threshold value
/ RTI >

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