KR100680294B1 - Service Method, Device for providing mobile terminal to location information service and Recording-Medium storing the method - Google Patents

Abstract

The present invention relates to a method for providing location information to a mobile terminal, an apparatus and a recording medium recording the method. In a service method for providing location information to a mobile terminal in a location information providing server according to the present invention, a corrected position calculated from respective location information by a plurality of methods corresponding to an arbitrary area from an information providing terminal among mobile terminals; Receiving the location information registration request message including the information and at least one of the location information, storing the received location information and the corrected location information, and requesting the location information correction including the comparison location information corresponding to the location information. Receiving a message from the information request terminal of the mobile terminal and transmitting the correction position information to the information request terminal.

Terminal, location information, GPS, cellular, calibrated location information

Description

Service method, device for providing mobile terminal to location information service and Recording-Medium storing the method}

1 is a configuration diagram schematically showing an entire system for a location information providing service according to an embodiment of the present invention.

Figure 2a is a functional block diagram showing the configuration according to the function of the location information providing server according to an embodiment of the present invention.

2B is a view showing the form of a location information table stored in a location information providing server.

Figure 2c is a functional block diagram showing the configuration according to the function of the information providing terminal according to an embodiment of the present invention.

3 is a view schematically showing a location information service process according to an embodiment of the present invention.

4A is a diagram illustrating a process of transmitting and registering location information between an information providing terminal and a location information providing server 30 according to an exemplary embodiment of the present invention.

4B is a view showing a location information request between an information requesting terminal and a location information providing server and a corresponding location information providing process according to an exemplary embodiment of the present invention.

5 is a diagram illustrating calculating correction position information according to an exemplary embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: information providing terminal

20: information request terminal

30: location information server

The present invention relates to a method for providing location information to a mobile terminal, an apparatus and a recording medium recording the method.

Recently, a location information acquisition technology using various location measurement methods has been developed in a mobile terminal.

Currently used position measuring method is a cell method using each base station (or repeater) of a wireless network. The cell method has an advantage of low cost because it uses a base station for communication such as voice calls, but the precision is inferior to an error range of about 1 km.

In addition, in the case of a mobile terminal having a built-in GPS receiver, location information may be obtained using a signal received from a GPS satellite. The method of obtaining location information using a GPS receiver has a merit of using a satellite and a small error range. However, GPS receivers are expensive, and can be rarely used in shadowed areas such as underground, and are vulnerable to high-rise buildings because GPS satellite signals are well reflected or refracted in buildings.

As a method for solving the above-mentioned problems, a method of acquiring location information through a GPS receiver when the mobile terminal is outdoors when the mobile terminal is capable of receiving GPS satellite signals and through a base station of a wireless network when in a shaded area is provided. Also used. However, as described above, it does not solve the problems such as the burden of use due to the high price of the GPS receiver and inaccurate location information due to the large error range of the cellular system.

Accordingly, the present invention has been made to solve the above-described problem, and more accurate correction position information is reduced by using a plurality of position information such as a GPS method and a cell method through a base station (or repeater) of a wireless network. The present invention provides a method and apparatus for obtaining and providing location information providing service and a recording medium recording the method.

Another object of the present invention is a mobile terminal capable of acquiring only cell type location information having a large error range, and a location information providing service method and apparatus for more precisely correcting and providing current location information of the mobile terminal and its location. It is to provide a recording medium recording the method.

Still other objects of the present invention will become more apparent through the preferred embodiments described below.

According to a first aspect of the present invention for achieving the above object, in a service method for providing location information to a mobile terminal in a location information providing server, a plurality of mobile terminal corresponding to any area from the information providing terminal Receiving a position information registration request message including corrected position information calculated through respective position information according to a scheme and at least one of the position information; Storing the received position information and the corrected position information; Receiving a location information correction request message including comparison location information corresponding to the location information from an information requesting terminal of the mobile terminal; And transmitting the corrected position information to the information requesting terminal.

Here, the location information included in the location information registration request message may include location information by a cellular method.

In addition, in a service method for providing location information to a mobile terminal in a location information providing server, a location information registration request including respective location information in a plurality of ways corresponding to an arbitrary area from an information providing terminal among the mobile terminals; Receiving a message; Storing the corrected position information calculated through the position information and the position information; Receiving a location information correction request message including comparison location information corresponding to one of the stored location information from an information requesting terminal of the mobile terminal; And transmitting the corrected position information to the information requesting terminal.

Here, the plurality of methods may include two or more of a GPS method, a cell method, a wireless LAN (LAN) connection location detection method, and a DMB broadcast reception location detection method.

In addition, the comparison position information may be position information by a cell type, and the corrected position information may be calculated through position points and error ranges of the respective position information.

According to a second aspect of the present invention for achieving the above object, in a server for providing a location information providing service to a mobile terminal, each of the mobile terminal by a plurality of methods corresponding to an arbitrary area from the information providing terminal of the mobile terminal; Receive a position information registration request message including the corrected position information and at least one of the position information, calculated through the position information of the location information request information from the information request terminal of the mobile terminal; Receiving unit for receiving; Database; A location information registration unit which stores the corrected location information in the database so as to correspond to the at least one location information and the location information included in the location information registration request message; A position information extraction unit for extracting corrected position information corresponding to the received comparison position information from the database; And a transmitter for transmitting the extracted corrected position information to the information requesting terminal.

In addition, in a server providing a location information providing service to a mobile terminal, a location information registration request message including respective location information in a plurality of ways corresponding to an arbitrary area is received from an information providing terminal among the mobile terminals; And a receiving unit for receiving a location information request message including comparison location information from the information requesting terminal of the mobile terminal; Database; A corrected position calculator for calculating corrected position information through the position information included in the position information registration request message; A location information registration unit which stores the corrected location information in the database so as to correspond to the location information and the location information included in the location information registration request message; A position information extraction unit for extracting corrected position information corresponding to the comparison position information from the database; And a transmitter for transmitting the extracted corrected position information to the information requesting terminal.

Here, the plurality of methods may include two or more of a GPS method, a cell method, a wireless LAN (LAN) connection location detection method, and a DMB broadcast reception location detection method.

The position information extracting unit may extract the corrected position information corresponding to the recognized position information after recognizing the same position information as the comparison position information among the plurality of position information stored in the database in advance. When the location information that is identical to the comparison location information is not recognized among the location information, the nearest location information may be recognized.

According to a third aspect of the present invention for achieving the above object, two or more methods including at least the cell method of the GPS method, a cell method, a wireless LAN (LAN) connection location detection method and a DMB broadcast reception location detection method. A location information acquisition unit for obtaining a plurality of location information through; A correction position calculator for calculating correction position information through the plurality of position information; A request message generator for generating a location information registration request message including the plurality of location information and the corrected location information; And a data transmission unit for transmitting the location information registration request message to a location information providing server.

Here, the correction position calculation unit may calculate the correction position range through each position point and the error range of the plurality of position information.

According to a fourth aspect of the present invention for achieving the above object, in a recording medium in which a program for performing a location information service method in a mobile terminal is stored, each of the plurality of location acquisition methods including at least a cell method; Obtaining location information; Calculating corrected position information corresponding to the position information; And a program storing a program for executing a step of transmitting a location information registration request message including the location information and the corrected location information to a location information providing server.

Here, the plurality of methods may include at least one of a GPS method, a wireless LAN (LAN) connection location detection method, and a DMB broadcast reception location detection method.

Prior to describing a method and apparatus for providing location information according to an exemplary embodiment of the present invention, a description will be briefly given of a GPS method and a cell method which are most used as a method for obtaining location information.

The basic principle of GPS is triangulation in two dimensions. When two points are known as a and b, and x is one point of the position, x is the distance between two points and x, To measure the position of x. In three dimensions, three points of known position are required, the other being a GPS satellite. Providing distance information between GPS satellites and x is a method of location tracking through GPS. The operation principle of GPS is the same, but it is divided into stand-alone GPS which has an error range of about 25m according to the measurement method, and differential GPS (DGPS) which has an error range of about 10m. Lose. Detailed descriptions of both systems will be omitted.

The cellular method is to use a base station (or repeater) of a wireless network. The location is determined by using identification information (eg, base station ID) of one or more base stations corresponding to where the mobile terminal is located and signal strength information received from each base station. The cell method may also detect a more precise position by using a triangulation method using a method using one or two base stations and three base stations. That is, different cell methods may be used depending on the number of base stations on which the cell method is based, and of course, an error range may be reduced as the number of base stations increases.

Cellular base stations using wireless networks are distributed in Korea in approximately 20,000 places. Based on the densely installed base station, the base station connected to the subscriber is first identified. In the city, the location can be determined with an error of approximately 500 ~ 1500m. In addition, since a wireless network for mobile communication has large CDMA and W-CDMA, each location tracking method using a base station corresponding to each network may be used.

The plurality of location information that can be applied to the present invention can be obtained through a wireless LAN (LAN) connection location detection method, a DMB broadcast reception location detection method, etc., in addition to the GPS method and the cell method, and can recognize the location of the mobile terminal. If the information is available, it can be applied without any limitation.

Here, it is obvious that wireless LAN (LAN) connection location detection method, DMB broadcast reception location detection method, and the like can also obtain location information by a cell method through a repeater of each network. Even if it is not described, those skilled in the art will readily understand that the plurality of location information may be equally applied to the present invention without any limitation through the following description.

Hereinafter, a method and apparatus for providing location information service according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding regardless of the reference numerals Components are assigned the same reference numerals and duplicate description thereof will be omitted.

1 is a configuration diagram schematically showing an entire system for a location information providing service according to an exemplary embodiment of the present invention.

According to FIG. 1, the entire system for providing a location information service includes an information providing terminal 10, an information requesting terminal 20, and a location information providing server 30.

The information providing terminal 10 and the information requesting terminal 20 are mobile communication terminals such as mobile phones and PDAs as mobile terminals. Therefore, since the information providing terminal 10 and the information requesting terminal 20 perform mobile communication, it is possible to obtain cell location information using a base station of a mobile communication network (wireless network).

In particular, the information providing terminal 10 may be equipped with a GPS receiver to obtain GPS position information, or may obtain a plurality of position information according to a wireless LAN connection location detection method, a DMB broadcast reception location detection method, and the like. That is, not all mobile terminals can be information providing terminals 10. In addition to the conventional cellular location information, a GPS receiver or a wireless Internet access function, a DMB broadcast reception function, and the like are provided so as to acquire additional location information. Accordingly, the information providing terminal 10 performs a function of providing the location information providing server 30 with the acquired location information according to an arbitrary location.

In addition, the information providing terminal 10 may calculate more accurate correction position information through each position information so as to reduce the error of the position information according to each method by using each of the plurality of position information for any one position. have. Therefore, the information providing terminal 10 can obtain precise location information with less error than the location information according to one method. The information providing terminal 10 may transmit the calculated correction position information to the position information providing server 30 together with the obtained position information. Of course, when providing a plurality of location information to the location information providing server 30, the information providing terminal 10 does not necessarily include all of the above-described location information, and at least two or more methods including a cell method A plurality of location information can be transmitted.

In addition, when the information providing terminal 10 transmits the location information to the location information providing server 30, when the corrected location information is transmitted together, the information providing terminal 10 does not necessarily need to transmit all of the acquired location information. Only cellular position information and correction position information may be transmitted. When the correction position information is not transmitted together, at least two position information including at least cellular position information are transmitted to the position information providing server 30 so that the position information providing server 30 can calculate the correction position information. Should be. The reason for including the cellular location information is that the location information providing server 30 is compared with the location information received from the information request terminal 20. In general, the information requesting terminal 20 may acquire a location information by a cellular method because it has a communication function. Therefore, the location information providing server 30 provides information to the information requesting terminal 20 through the same (or similar) location information by the cellular method of the information requesting terminal 20 and the information providing terminal 10 in the same region. A plurality of position information and correction position information received from the providing terminal 10 can be provided.

The information requesting terminal 20 acquires the position information according to one method for an arbitrary position, and transmits the position information correction request message including the position information obtained to the position information providing server 30, thereby correcting the position. You can get information. Accordingly, the information requesting terminal 20 may obtain corrected position information having a smaller error range through the position information providing server 30 using information having a large error range according to one position information. As described above, one piece of location information may be cell location information obtained by all terminals having a communication function. Therefore, hereinafter, the location information acquired by the information requesting terminal 20 will be described taking the location information by the cell type as an example, which will be referred to as comparison location information. In addition to the cell location information, it is natural that one comparative location information may be applied by a GPS receiver, a WLAN connection location detection method, a DMB broadcast reception location detection method, and the like.

The location information providing server 30 performs a function of databaseting a plurality of location information received from the information providing terminal 10. In addition, when the corrected position information is not included in the position information received from the information providing terminal 10, the function may directly calculate and store the corrected position information through the plurality of received position information.

In addition, the location information providing server 30 performs a function of extracting the correction position information corresponding to the position information correction request received from the information request terminal 20 to provide to the information request terminal 20. The location information providing server 30 searches the database for location information having the same or closest value as the location information received from the information requesting terminal 20 and extracts the corrected location information corresponding to the information requesting terminal 20. To be provided.

Hereinafter, the configuration and function of the location information providing server 30 will be described in detail with reference to FIGS. 2A and 2B, and the configuration according to the function of the information providing terminal 10 will be described in detail with reference to FIG. 2C.

FIG. 2A is a functional block diagram illustrating a configuration according to the function of the location information providing server 30 according to an exemplary embodiment of the present invention, and FIG. 2B illustrates a form of a location information table stored in the location information providing server 30. Drawing.

The location information providing server 30 according to FIG. 2A includes a receiver 32, a database 33, a location information register 34, a location information extractor 35, a transmitter 36, and a controller.

The receiver 32 receives a location information registration request message including a plurality of location information corresponding to an arbitrary area from the information providing terminal 10 or requests for location information including comparison location information from the information requesting terminal 20. Performs the function of receiving a message.

The database 33 performs a function of storing the location information received from the information providing terminal 10. The location information stored in the database 33 may be stored as a location information table.

According to FIG. 2B, the location information table 40 is calculated by using the location information of each method 42-1, 42-2, 42-3, ... 42-n for any one location and using the same. Correction position information 44. A detailed description of the calculation of the correction position information will be described later with reference to the drawings. As described above, the cell scheme 1 42-2 and the cell scheme 2 42-3 refer to a scheme according to the number of base stations on which the cellular scheme is based.

The location information registration unit 34 stores a plurality of location information received from the information providing terminal 10 and correction location information in the database 33 so as to correspond to the location information.

The location information extraction unit 35 performs a function of extracting correction location information corresponding to the comparison location information included in the location information request message received from the information request terminal 20 from the database 33. That is, after retrieving the same positional information as the comparison positional information received from the information request terminal 20 in the positional information table 40, the corrected positional information corresponding to the retrieved positional information is extracted.

The transmitter 36 transmits the extracted correction position information to the information requesting terminal 20.

The control unit 37 determines whether the location information received from the information providing terminal 10 is available information that can be stored in the database 33 and subsequently provided as location information to the information requesting terminal 20, or the information It is determined whether the corrected position information is included in the position information received from the providing terminal 10. If the information is not available, an error message is transmitted to the information providing terminal 10 through the transmitter 37, and if the correction position information is not included, the correction position calculator (not shown) is calculated. To order.

Here, the location information providing server 30 may further include the correction position calculator described above. The correction position calculator performs a function of calculating the correction position information when the correction position information does not exist among the plurality of position information received from the information providing terminal 10. The information providing terminal 10 calculates the corrected position information and transmits the position information providing server 30 together with other position information, but the position information providing server 30 may calculate the corrected position information directly. .

2C is a functional block diagram showing a configuration according to the function of the information providing terminal 10 according to the preferred embodiment of the present invention.

According to FIG. 2C, the information providing terminal 10 includes a position information obtaining unit 12, a corrected position calculating unit 14, a request message generating unit 16, and a data transmitting unit 18.

The location information acquisition unit 12 acquires a plurality of location information such as location information using a GPS receiver, cell location information according to a communication function, location information according to a wireless Internet function, and location information according to a DMB broadcast reception function. Perform the function. The location information acquisition unit 12 only needs to be able to acquire two or more location information including cell location information among the above location information. Since each position acquisition method has been described above, it will be omitted.

The corrected position calculator 14 calculates the corrected corrected position information based on the obtained position information. The process of calculating the corrected position information will be described later with reference to the drawings.

The request message generation unit 16 performs a function of generating a location information registration request message including the obtained location information and the calculated correction location information.

The data transmitter 18 transmits the generated location information registration request message to the location information providing server 30.

3 is a diagram schematically illustrating a location information service process according to an exemplary embodiment of the present invention.

According to FIG. 3, in step S310, the information providing terminal 10 transmits a location information registration request message including a plurality of location information and correction location information according to two or more methods including at least a cellular method, to the location information providing server 30. do.

In operation S320, the location information providing server 30 stores the plurality of received location information and the corrected location information.

In operation S350, the location information providing server 30 receives a location information correction request message including the comparison location information by a cellular method from the information requesting terminal 20.

In step S360, the location information providing server 30 extracts the correction location information corresponding to the comparison location information received from the information request terminal 20. That is, the location information providing server 30 searches the previously stored location information table 40 for the same location information as the comparison location information in the location information correction request message received from the information requesting terminal 20, and searches for the retrieved location information. Corresponding correction position information is extracted. Here, when the same position information does not exist, the position information having the closest value may be searched and the corrected position information corresponding thereto may be extracted.

The corrected position information extracted in step S370 is transmitted to the information requesting terminal 20.

Here, the database of the location information received from the information providing terminal 10 of steps S310 to S320 and the step of providing correction position information to the information requesting terminal 20 of steps S350 to S370 may be performed separately. That is, only the step of databaseting the location information received from the information providing terminal 10 may be performed separately, and only the step of providing the corrected position information to the information requesting terminal 20 using the previously stored location information may be performed. It is self-evident.

Here, the information providing terminal 10 may receive a cost for providing location information to the location information providing server 30, the information requesting terminal 20 receives the correction position information from the location information providing server 30 You can pay the cost.

Hereinafter, a process of databaseting the location information received from the information providing terminal 10 will be described in detail with reference to FIG. 4A, and a process of providing correction position information to the information requesting terminal 20 will be described with reference to FIG. 4B. It will be described in detail.

4A is a diagram illustrating a process of transmitting and registering location information between the information providing terminal 10 and the location information providing server 30 according to an exemplary embodiment of the present invention.

According to FIG. 4A, in step S410, the information providing terminal 10 obtains location information according to a plurality of methods corresponding to the current location.

In operation S415, the information providing terminal 10 transmits a location information registration request message including the obtained plurality of location information and the corrected location information calculated through the location information providing server 30. Here, the information providing terminal does not necessarily need to transmit all of the acquired position information, but may also transmit only the cellular position information and the corrected position information.

In operation S420, the location information providing server 30 determines whether the received location information is available location information. That is, it is determined whether a plurality of location information is included or available information according to whether the location information corresponds to a preset method (cell method or the like) or whether the location information is registered in advance.

The location information providing server 30 transmits an error message to the information providing terminal 10 in step S425 if the location information is not available, and the location information received in step S430 when the location information is available. It is determined whether or not correction position information is included. The position information providing server 30 calculates the corrected position information in step S435 when the corrected position information is not included in the received position information.

In step S440, the location information providing server 30 stores the location information.

For example, the information providing terminal 10 acquires the location information a using GPS, the cellular location information b of the wireless network (for example, CDMA network), and the location information c by the wireless Internet function, and obtained a When the corrected position information z through, b, c is calculated and transmitted to the position information providing server 30, the position information providing server 30 stores a, b, c, and z in correspondence with the position information table.

4B is a diagram illustrating a location information request between the information request terminal 20 and the location information providing server 30 and a corresponding location information providing process according to an exemplary embodiment of the present invention.

According to FIG. 4B, in step S450, the information requesting terminal 20 obtains one location information corresponding to the current location, that is, comparison location information. For example, the comparison position information b using a cell system of a wireless network (CDMA) is obtained.

In step S455, the information request terminal 20 transmits a location information correction request message including the comparison location information to the location information providing server 30. Here, the location information correction request message preferably includes information about the comparison location information and the location information acquisition method (cell method).

In operation S460, the location information providing server 30 searches for the same location information in the location information table 40 as the received location information b. If the same location information does not exist, the most similar location information may be searched for in step S465.

In step S470, the location information providing server 30 extracts the corrected location information corresponding to the retrieved location information and transmits it to the information requesting terminal 20 in step S475. That is, the location information providing server 30 searches for b value of the location information table 40 and transmits the corrected location information z corresponding thereto to the information requesting terminal 20.

5 is a diagram illustrating calculating correction position information according to an exemplary embodiment of the present invention.

According to FIG. 5, a location point 510 and an error range 515 by a GPS method, a location point 530 and an error range 535 by a WLAN connection location detection method, and a location point 550 by a cell method And the corrected position point 570 in the common error range 575 where each error range intersects using the error range 555. Thus, correction position information corresponding to the calculated correction position point is calculated (generated). Here, the error range according to each method is preferably set in advance.

In addition, the method for calculating the corrected position point 570 in the common error range 575 may be performed by calculating a ratio of the common error range 575 included in the error ranges 515, 535, and 555 of each system, respectively. A method of calculating a point toward the position points 510, 530, and 550 of each method by the corrected ratio as the correction position point 570 may be used.

In addition, it is obvious that the method of calculating the corrected position information through the position information of each method may be applied.

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, according to the present invention, a location information providing service method for acquiring and providing more accurate corrected location information having a reduced error range by using a plurality of location information using a GPS method and a cell method through a repeater of a wireless network. In addition, it is effective to provide a recording medium recording the device and the method thereof.

In addition, even a mobile terminal capable of acquiring only cell-type position information having a large error range provides a location information providing service method, apparatus, and recording medium recording the method, which accurately correct and provide current location information of the mobile terminal. There is also an effect that can be done.

In addition, the information providing terminal can provide a cost of providing information, and the information requesting terminal can receive a cost according to the received information, thereby providing various mobile communication services.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art that various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below And can be changed.

Claims (15)

A method of providing a location information providing service to a mobile terminal coupled to a location information providing server through a communication network, Receiving a position information correction request message including comparison position information from the information request terminal through the communication network; Extracting correction position information corresponding to the comparison position information among position information previously received and stored from one or more information providing terminals, wherein the correction position information is each position information according to a plurality of methods corresponding to an arbitrary region. Calculated through the data, wherein at least one of the plurality of position information is received together with the corrected position information; And And transmitting the extracted corrected position information to the information requesting terminal. The method of claim 1, The location information received from the information providing terminal includes location information of a cell type. A method of providing a location information providing service to a mobile terminal coupled to a location information providing server through a communication network, the method comprising: Receiving a position information correction request message including comparison position information from the information request terminal through the communication network; Extracting corrected position information corresponding to the comparison position information among respective corrected position information calculated and stored in advance using a plurality of position information by a plurality of methods previously received from at least one information providing terminal; And And transmitting the extracted corrected position information to the information requesting terminal. The method according to claim 1 or 3, The plurality of schemes include at least one of a GPS scheme, a cellular scheme, a wireless LAN (LAN) connection position sensing scheme, and a DMB broadcasting reception position sensing scheme. The method according to claim 2 or 3 And the comparison location information is location information in a cellular manner. The method according to claim 1 or 3 The correction position information is a position information providing service method is calculated through the position point and the error range of the respective position information. A server for providing a location information providing service to a mobile terminal, Receiving a position information registration request message including the corrected position information and the position information calculated through the respective position information in a plurality of ways corresponding to a certain area from the information providing terminal of the mobile terminal and at least one of the position information; And a receiving unit for receiving a location information request message including comparison location information from the information requesting terminal of the mobile terminal; Database; A location information registration unit which stores the corrected location information in the database so as to correspond to the at least one location information and the location information included in the location information registration request message; A location information extraction unit for comparing the received comparison location information with the location information stored in the database and extracting corresponding correction location information from the database; And Transmitter for transmitting the extracted correction position information to the information request terminal Location information providing server comprising a. A server for providing a location information providing service to a mobile terminal, Receive a location information registration request message including respective location information by a plurality of methods corresponding to a certain area from the information providing terminal of the mobile terminal, or the location including the comparison location information from the information request terminal of the mobile terminal A receiving unit for receiving an information request message; Database; A corrected position calculator for calculating corrected position information through the position information included in the position information registration request message; A location information registration unit which stores the corrected location information in the database so as to correspond to the location information and the location information included in the location information registration request message; A position information extracting unit which compares the comparison position information with the stored position information and extracts corresponding corrected position information from the database; And Transmitter for transmitting the extracted correction position information to the information request terminal Location information providing server comprising a. The method according to claim 7 or 8, The plurality of schemes include at least two of a GPS scheme, a cellular scheme, a wireless LAN (LAN) connection position sensing scheme, and a DMB broadcasting reception position sensing scheme. The method according to claim 7 or 8, And the location information extracting unit extracts corrected location information corresponding to the recognized location information after recognizing location information identical to the comparison location information among a plurality of location information previously stored in the database. The method of claim 10, And the location information extracting unit recognizes the nearest location information when the location information extracting unit does not recognize the same location information as the comparison location information among previously stored location information. In a mobile terminal, A location information acquisition unit for obtaining a plurality of location information through at least two methods including at least one of a GPS method, a cell method, a wireless LAN (LAN) connection location detection method, and a DMB broadcast reception location detection method; A correction position calculator for calculating correction position information through the plurality of position information; A request message generator for generating a location information registration request message including the plurality of location information and the corrected location information; And The location information providing server transmits the location information registration request message to the location information providing server through a communication network so that the location information providing server provides the corrected location information corresponding to the comparison location information received from the information requesting terminal using the location information registration request message. A mobile terminal for providing location information including a data transmitter. The method of claim 12 The correction position calculator provides position information for calculating the correction position range through each position point and an error range of the plurality of position information. In a recording medium in which a mobile terminal is tangibly embodied to be executed in a digital processing device to perform a location information service method, and a program which can be read by the digital processing device is stored. Acquiring respective position information according to a plurality of position acquiring schemes including at least a cell scheme; Calculating corrected position information corresponding to the position information; And A location information registration request message including the location information and the corrected location information such that the location information providing server provides the corrected location information corresponding to the comparison location information received from the information requesting terminal using the location information registration request message; Recording medium storing a program for executing the step of transmitting to the location information providing server through a communication network. The method of claim 14, The plurality of methods may include at least one of a GPS method, a wireless LAN (LAN) connection location detection method, and a DMB broadcast reception location detection method.

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