KR100748270B1 - Method for providing location measurement service for portable terminal and device thereof - Google Patents

Abstract

A location measurement service providing method and a device thereof for a portable terminal are provided to supply location measurement service obtained by an A-GPS(Assisted Global Positioning System) method, to the portable terminal having a GPS(Global Positioning System) chip without changing devices, by applying a counting function for delaying the certain time to a CP(Contents Provider) server. A location measurement service providing method for a portable terminal(10) having a GPS chip is composed of steps for requiring a CP server(100) to measure the location through the communication network by using a communication protocol supported by an operating system(315); canceling a call to the CP server(320); transmitting information about a base station and GPS information through the communication protocol using the GPS chip, to a PDE(Position Determining Entity)(120), by using connection information stored in advance or a session information message received from the CP server(350); and receiving the location information from the PDE computed by using information about the base station and GPS information(360). If the CP server receives a location measurement request, the CP server counts the predetermined time and then requires an LBSP(Location Based Service Provider)(110) to assign session between the portable terminal and the PDE(325,335,340).

Description

Method for providing location measurement service for mobile terminal and device thereof

1 is a view showing a conventional position measurement process using the A-GPS method.

Figure 2 is a schematic diagram showing an overall system for providing a location measurement service of a mobile terminal having a GPS chip according to an embodiment of the present invention.

3 and 4 are flowcharts illustrating a process of providing a location measurement service to a mobile terminal having a GPS chip according to each preferred embodiment of the present invention.

Figure 5 is a functional block diagram showing the configuration according to the function of the CP server in a preferred embodiment of the present invention.

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

10: mobile terminal

30: GPS satellite

50: base station

100: CP (Contents Provider) server

110: Location Based Service Provider (LBSP)

120: Position Determining Entity (PDE)

The present invention relates to a location information service, and more particularly, to a method and apparatus for providing a location measurement service for a mobile terminal.

The location tracking technology used in LBS (Location Based Service) includes network-based positioning method, handset-based positioning method, and hybrid positioning, which overcomes the disadvantages of both methods. ) There is a way.

Cell of origin (COO) or Cell-ID is a pure network-based location tracking method. This is a method of using the existing communication network to find the location of the mobile terminal using the strength or direction of the signal between the base station (base station) and the mobile terminal. The advantage of this method is that it is possible to quickly identify the location, and there is an advantage that the initial investment cost is reduced by using the existing communication network, but there is a big disadvantage of poor location accuracy.

A handset based positioning method is Time of Arrival (TOA) using a Global Positioning System (GPS). GPS is a satellite-based navigation system operated by the US Department of Defense. The positional accuracy was limited to 100m due to intentional error (SA), but the accuracy of the current GPS is 5 ~ 40m by removing the SA which was recently included in the satellite signal. It is enough. This method has a disadvantage of high positioning accuracy due to the use of GPS, but it cannot be used because the signal is not detected in underground or high-traffic cities where there are many buildings.

The hybrid positioning method is a hybrid 3D technique that combines the strength of the data received from the GPS and the signal received from the base station by using a combination of the strengths of the data received from the GPS and the base station. Qualcomm's 'gpsOne' solution is a representative technology that overcomes the disadvantages of GPS, which cannot be used indoors. Qualcomm's 'gpsOne' solution was developed based on Assisted-Global Positioning System (A-GPS) technology, which has a high accuracy of only 10 to 30m and the initial start-up time of the terminal. This short, low load on the handset compared to previous GPS-based solutions has the advantage of reducing handset power consumption.

The A-GPS method reduces the long warm-up time (the initial GPS warm-up time takes about 10 minutes), which is a disadvantage of GPS. That is, the A-GPS transmits satellite orbit information from the base station to the terminal, and the terminal transmits pseudo range data from the satellite to the base station, so that the base station can obtain more accurate position information in a short time and the power consumption of the terminal is reduced. It is a way to reduce it. A-GPS, a handset-based positioning technology, is a method in which a chip (modem) embedded in a mobile phone reads location information sent from a satellite regardless of the weather and informs the base station. Therefore, CDMA mobile carriers are mainly adopting the advantages of purchasing a new GPS-enabled handset and using the existing mobile network as it is.

1 is a view showing a conventional position measurement process using the A-GPS method.

Referring to FIG. 1, first, when a mobile terminal requests a location measurement service to an LBS Contents Provider (LBS CP) server (step 20), the LBS CP server requests a location-based service provider (LBSP) for authentication and session allocation. (Step 21). The LBSP authenticates (step 22), interworks with a Position Determining Entity (PDE) server (step 23), receives a session of the PDE, and provides session allocation information for the PDE connection to the CP server (step 24). Therefore, the base station information and the GPS information measured by the mobile terminal receiving the PDE access information from the CP server are transmitted to the PDE processing the location-based service (step 25). The PDE calculates the location using the received base station information and the GPS information (step 26), and provides the location information according to the calculated location to the mobile terminal (step 27), whereby the location measurement service is processed.

The operating system (OS) of a personal digital assistant (PDA) or smart phone can be broadly divided into a Palm series and a Windows CE series. Palm's greatest strength is its concise interface. However, Windows CE is designed to be small, fast, scalable, and easy to move, and most smartphones and industrial PDAs currently use a Pocket PC or Windows CE operating system.

In order to utilize the above-described A-GPS method using a PDA or a smart phone, a GPS chip should be embedded. However, no PDAs or smartphones with GPS chips are currently available. Problems when applying the A-GPS method described with reference to FIG. 1 using a PDA or a smart phone with a built-in GPS chip are as follows.

In a general portable terminal that performs a request for location service in an integrated modem such as a mobile phone, all of the above-described procedures are processed in one modem, so there is no problem. However, PDAs or smartphones use the TCP stack, which is a communication protocol provided by the operating system, when receiving an authentication and session assignment from the LBSP through the CP server, and the TCP stack using a GPS chip for PDE connection. Because the performance of the TCP stack is different, the PDA or smartphone must be disconnected and reconnected after receiving a session to the PDE.

In addition, even when attempting to connect to the PDE by disconnecting and reconnecting, there is a problem that the service is disabled due to a time out in the PDE.

The PDE has a limited number of sessions (approximately 64), and counts a timeout of about 10 seconds after allocating sessions to prevent illegal subscribers from connecting, and after that time is exceeded, The attempting terminal does not allow the connection.

However, a PDA or a smartphone takes about 8 seconds to disconnect a call to request a positioning service to a CP server (i.e., a release time) and 3 seconds to set up a call to a PDE. It takes about 11 seconds or more after receiving session from PDE, so it is not possible to connect to PDE because it is timed out and service cannot be provided.

Accordingly, the present invention has been made to solve the above-described problems, location measurement service for a mobile terminal that can provide the location information according to the A-GPS method to a mobile terminal such as a PDA or smart phone equipped with a GPS chip It is an object of the present invention to provide a method and an apparatus.

In addition, another object of the present invention is to provide a method and apparatus for providing a location measurement service for a mobile terminal capable of minimizing fluctuation of devices for providing a location measurement service according to the A-GPS method.

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

According to an aspect of the present invention for achieving the above object, in a method for providing a location measurement service by a mobile terminal having a GPS chip (a chip), (a) using a communication protocol supported by the operating system to establish a communication network; Requesting location measurement to the CP server through; (b) releasing the call to the CP server; (c) transmitting the measured base station information and the GPS information to a position determining entity (PDE) through a communication protocol using the GPS chip, using previously stored access information or using a session information message received from the CP server; ; And (d) receiving location information calculated using the base station information and the GPS information from the PDE, wherein the CP server sends to a location based service provider (LBSP) after a predetermined time elapses. Provided is a method for providing a location measurement service for a mobile terminal having a GPS chip and requesting session allocation to the PDE, and a recording medium on which a program for executing the method is recorded.

Here, the operating system may be characterized in that the Windows CE (windows CE).

In addition, the predetermined time may be a predetermined time so that the time interval between the session allocation to the PDE and the step (c) is within the timeout time allocated to the PDE.

In addition, the portable terminal may be any one of a smart phone and a PDA.

According to another aspect of the present invention for achieving the above object, a method for providing a position measurement service to a portable terminal having a GPS chip by a CP server, comprising: receiving a position measurement request from the portable terminal; Counting a predetermined time; And after the time has elapsed, requesting the LBSP to allocate a session to the PDE so that the portable terminal transmits the measured base station information and the GPS information to the PDE to receive corresponding location information. A method for providing a location measurement service of a mobile terminal and an apparatus for performing the method are provided.

Receiving session information on a session allocated by the PDE; And generating a session information message corresponding to the session information and transmitting the session information message to the mobile terminal, wherein the mobile terminal transmits base station information and GPS information to the PDE using the session information message. can do.

In addition, the session information message may be transmitted through a message transmission service.

In addition, receiving session information on the session allocated by the PDE; And transmitting, to the portable terminal, a command message for controlling the portable terminal to transmit base station information and GPS information to the PDE according to the session information.

In addition, the portable terminal can access the PDE using previously stored access information.

The predetermined time may be a predetermined time interval such that the time interval for allocating the session to the PDE and transmitting the base station information and the GPS information to the PDE is within a timeout time allocated to the PDE. You can do

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, a method of measuring location information in a mobile terminal having a GPS chip and a mobile terminal according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals regardless of the reference numerals and duplicate description thereof will be omitted.

2 is a block diagram schematically illustrating an entire system for providing a location measurement service of a mobile terminal having a GPS chip according to an exemplary embodiment of the present invention.

2, the entire system includes a mobile terminal 10 having a GPS chip, a GPS satellite 30 providing GPS information, a communication network including a base station 50, a content provider server (CP) 100, It includes a Location Based Service Provider (LBSP) 110 and a Position Determining Entity 120 (PDE).

The portable terminal 10 is a communication terminal such as a PDA or a smart phone having a modem capable of communicating with the base station 50. In particular, the mobile terminal 10 includes a GPS chip to provide location information of the A-GPS method. It can be measured. Hereinafter, for convenience of description, the portable terminal 10 will be described by taking a case of a PDA as an example, but all portable terminals 10 including a GPS chip such as a smart phone can be equally applied. Will be self-evident.

The mobile terminal 10 measures the reception strength and / or direction of radio waves received from one or more base stations 50 and measures GPS information through the GPS satellites 30. The mobile terminal 10 transmits the base station information including the measured radio wave strength and / or direction of the base station 50 and the identification information of the base station 50 and the GPS information to the PDE 120 through a communication network. The information and GPS information can be used to obtain more accurate location information calculated.

The base station 50 is a terminal of a communication network that performs wireless communication with the mobile terminal 10, and the communication network is not only a mobile communication network including an exchanger, a location register (HLR or VLR), but also an internet network performing IP (IP) communication. Can be. The construction and function of the communication network may be obvious to those skilled in the art, so detailed description thereof will be omitted.

CP server 100 is a server that provides a variety of content to the mobile terminal 10, CP server 100 according to an embodiment of the present invention is a mobile terminal combined with a location based service (LBS: Location Based Service) through a communication network It performs a function provided to the terminal 10.

When the CP server 100 receives a request for the location measurement service according to the present invention from the mobile terminal 10 through a communication network, the LBSP 110 session for authentication of the mobile terminal 10 and access to the PDE 120. Performs the function of requesting an assignment. In addition, when the CP server 100 receives a session from the PDE 120, the CP server 100 performs a function of providing information about the session to the mobile terminal 10. Here, in particular, when the CP server 100 receives a location measurement service request from the mobile terminal 10, it counts a predetermined time, delays a predetermined time, and then requests authentication and session allocation to the LBSP 110. do. This is to prevent the time-out of the PDE 120 when the mobile terminal 10 connects to the PDE 120 later. Accordingly, the LBSP 110 receives the authentication and session allocation request from the CP server 100 at a time when the mobile terminal 10 requests a location measurement service and then processes the authentication, and interoperates with the PDE 120. The session to the PDE 120 is allocated to provide the session information to the CP server 100.

The PDE 120 allocates a session according to the location measurement service in response to the session allocation request from the LBSP 110, and time-out time (approximately 10 until base station information and GPS information is received from the mobile terminal 10). Wait for seconds). If the connection is not attempted from the portable terminal 10 which assigned the session until the timeout time is exceeded, the assigned session is released.

When the PDE 120 receives the base station information and the GPS information from the mobile terminal 10 to which the session is allocated before the timeout time, the PDE 120 calculates the position of the mobile terminal 10 by using the received base station information and the GPS information. The location information according to the calculated location is transmitted to the mobile terminal 10.

The method of calculating the location information by using the base station information and the GPS information by the PDE 120 is a well-known technique that is still used today, and thus the detailed description thereof will be omitted.

3 and 4 are flowcharts illustrating a process of providing a location measurement service to a mobile terminal having a GPS chip according to each preferred embodiment of the present invention.

Referring to FIG. 3, in step 310, the mobile terminal 10 includes a base station information (including base station identification information, information on signal strength and / or direction) and a GPS satellite (for a base station 50 that is currently transmitting and receiving a signal). GPS information, which is the location information through 30), is measured.

In step 315, the mobile terminal 10 requests the CP server 100 for a location measurement service and releases a call connected to the CP server 100 in step 320. Here, the mobile terminal 10 requests a location measurement service to the CP server 100 using a communication protocol (for example, a TCP stack) provided by an operating system (for example, Windows CE). In addition, since the location measurement service request requires access to the PDE 120 using the GPS chip, the call connected through the operating system is released. The location measurement service request may include identification information of the mobile terminal 10.

In step 325, the CP server 100 counts a predetermined time, delays a predetermined time, and then, in step 330, the LBSP 110 authenticates the mobile terminal 10 and assigns a session to the PDE 120. Ask. Here, the counting time for the delay is preferably set so as not to exceed the time until the mobile terminal 10 releases the call in step 320 and performs step 345. For example, it is assumed that the mobile terminal 10 takes a first time for releasing a call with the CP server 100 and also takes a second time for trying / setting a call to the PDE 120. Then, the counting time applicable to the CP server 100 is limited to a time that does not exceed the sum of the first time required and the second time required. In addition, the counting time must satisfy the condition that step 345 is performed within a timeout time predetermined by the PDE 120 after step 340 is performed. For example, assuming that the first time required is about 8 seconds, the second time required is about 3 seconds, and the time out time is 10 seconds, the counting time will be at least about 1 second and up to about 11 seconds.

In step 335 to step 340, the LBSP 110 requests authentication for session allocation to the PDE 120 after performing authentication processing. Here, as shown in the figure, the LBSP 110 does not need to receive session allocation information for session allocation from the PDE 120, but only the LBSP 110 or the CP server 100 is properly configured by the PDE 120. The PDE 120 may provide the session allocation information to the LBSP 110 and the CP so as to determine whether the session has been allocated. The PDE 120 allocates one session for the mobile terminal 10 to access, counts a timeout time, and waits for reception of base station information and GPS information from the mobile terminal 10.

In step 345, the mobile terminal 10 attempts and connects to the call to the PDE 120 using the predetermined PDE 120 connection information. Here, the mobile terminal 10 connects the call to the PDE 120 using a communication protocol provided by the GPS chip. In addition, if there are a plurality of PDEs 120, the portable terminal 10 may store all the connection information of each PDE 120, one of which may be designated in advance. Therefore, the portable terminal 10 first attempts to connect using the predetermined PDE 120 connection information, and if the PDE 120 attempting the connection is not the PDE 120 that has been notified of the service in step 340, the mobile terminal 10 determines a predetermined time. According to the sequential order, it may proceed in a manner of attempting to connect to another PDE 120 using the next PDE 120 connection information. In this case, when the connection to the PDE 120 has failed several times, it may proceed again from step 310 or step 315 using the next PDE 120 connection information.

In operation 350, the mobile terminal 10 transmits the measured base station information and the GPS information to the PDE 120. In operation 355, the PDE 120 calculates the location of the mobile terminal 10 using the received base station information and the GPS information. Therefore, in step 360, the PDE 120 provides the position information calculated by the mobile terminal 10, so that the mobile terminal 10 may acquire more accurate position information corresponding to the base station information and the GPS information measured by the mobile terminal 10. have.

Referring to FIG. 4 according to another embodiment, steps 410 to 440 may be performed in the same manner as steps 310 to 340 according to FIG. 3. However, when the CP server 100 delays a predetermined time in step 425, the delay time may be slightly different in this embodiment. In the present embodiment, since the mobile terminal 10 needs to try to connect to the PDE 120 after receiving the session information for the connection to the PDE 120 from the CP server 100, the mobile terminal 10 is a CP server ( It is more preferable to delay only by the time for releasing the call to 100, which will become more apparent through the following description.

As the LBSP 110 requests the session allocation to the PDE 120 in step 440, the PDE 120 allocates a session that the mobile terminal 10 can access to the CP server in step 445, and provides information about the CP server. Send to 100.

In step 450, the CP server 100 generates a session information message for the allocated session, and in step 455, the CP server 100 uses the generated session information message by using a message transmission service such as SMS. To send. In this case, the session information may include access information for accessing the PDE 120. The session information message may include recognition information in a header or a message that enables the mobile terminal 10 to recognize that the message is a session information message including PDE connection information. Accordingly, the mobile terminal 10 receiving the session information message may recognize that the message is a session information message including access information that can be connected to the PDE 120 through the header of the message or the recognition information included in the message. have.

In operation 460, the mobile terminal 10 attempts to call the PDE 120 using the access information in the session information message received from the CP server 100. According to the present embodiment, the CP server 100 attempts to call the PDE 120 using the received session information as soon as the portable terminal 10 releases the call to the CP server 100. It is desirable to delay the time by only a time (about 8 seconds) to release the call. Of course, it may be more preferable to set the delay time with reference to the time taken for the CP server 100 to transmit the session information message.

Steps 465 to 475 may be performed in the same manner as steps 350 to 360 according to FIG. 3.

Here, according to another exemplary embodiment, the CP server 100 may transmit a command message for controlling the mobile terminal 10 to perform steps 460 to 475, not a session information message including PDE access information. That is, the CP server 100 transmits a command message to the portable terminal to control the portable terminal 10 to transmit the measured base station information and the GPS information to the PDE 120. Accordingly, the mobile terminal 10 interprets the command message received from the CP server 100 and transmits the base station information and the GPS information measured in advance to the PDE 120 to which the session is allocated. The CP server 100 may transmit a command message to the mobile terminal 10 using a data transmission method using an IP address or the like. In addition, the CP server 100 may be interlocked with a switch (not shown) of the communication network, the base station 50, and the like, and may transmit the command data to data transmitted from time to time between the portable terminal 10 and the communication network. In addition to the above-described method, it is a matter of course that all methods capable of transmitting a command message can be applied in the same manner without the CP server 100 setting up a separate call to the mobile terminal 10.

5 is a functional block diagram showing the configuration according to the function of the CP server in a preferred embodiment of the present invention.

Referring to FIG. 5, the CP server 100 includes a data communication unit 102, a message generating unit 104, a counting unit 106, and a control unit 108.

The data communication unit 102 is a means for performing data communication with the mobile terminal 10 and the LBSP 110. That is, the CP server 100 receives a location measurement service request from the mobile terminal 10 through the data communication unit 102 or transmits an authentication and session allocation request to the LBSP 110.

When the message generator 104 receives the session information about the session allocated by the PDE 120 through the data communication unit 102, the message generator 104 generates a session information message for transmitting the session information to the mobile terminal 10. Perform the function. The generated session information message is transmitted to the mobile terminal 10 through message transmission services such as a short message service (SMS), a long message service (LMS), and a multimedia message service (MMS) provided in a communication network. In addition, the message generator 104 may generate a command message for controlling the mobile terminal 10 to transmit the measured base station information and the GPS information to the PDE 120 according to the session information allocated from the PDE 120. It may be.

The counting unit 106 performs a function of counting a predetermined time. That is, upon receiving the location measurement service request from the mobile terminal 10, the counting unit 106 is previously controlled under the control of the control unit 108 in order to request the authentication and session allocation to the LBSP 110 after delaying a predetermined time. Count the specified time.

When the control unit 108 receives the location measurement service request from the mobile terminal 10, the data communication unit 102 and the counting unit may request an authentication and session allocation to the LBSP 110 after delaying a predetermined time. Control 106. In addition, when the LBSP 110 allocates a session in association with the PDE 120, the data communication unit 102 generates a corresponding session information message and transmits the session information message to the mobile terminal 10 through a message transmission service such as SMS. And the message generator 104. In addition, the controller 108 may control the data communication unit 102 and the message generator 104 to transmit the command message as described above to the mobile terminal 10 that has generated and requested the location measurement service.

Here, as described above, the counting unit 106 may have a different counting time depending on whether the session information message is transmitted to the mobile terminal 10 or not. For example, when the CP server 100 transmits the session information message, it may count 7 seconds, and when the CP server 100 does not transmit the session information message, it may count 10 seconds.

The method of the present invention as described above may be implemented in 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 method and apparatus for providing a location measurement service for a mobile terminal capable of providing location information according to the A-GPS method to a mobile terminal such as a PDA or a smart phone equipped with a GPS chip There is an effect that can provide.

In addition, the present invention is also provided as a portable terminal such as a PDA, smart phone, etc. with a GPS chip by simply having a function of counting the CP server so as to delay a certain time without large fluctuation of devices for providing a location measurement service. There is also an effect that can provide a location measurement service according to the A-GPS method.

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 measurement service by a mobile terminal having a GPS chip, (a) requesting a position measurement to a CP server through a communication network using a communication protocol supported by an operating system; (b) releasing the call to the CP server; (c) transmitting the measured base station information and the GPS information to a position determining entity (PDE) through a communication protocol using the GPS chip, using previously stored access information or using a session information message received from the CP server; ; And (d) receiving location information calculated using the base station information and the GPS information from the PDE, When the CP server receives the position measurement request, the CP server counts a predetermined time, and then requests a session allocation service between the mobile terminal and the PDE to a location based service provider (LBSP). To provide location measurement services. The method of claim 1, The operating system is a window CE (Windows CE) characterized in that the location measurement service providing method of a mobile terminal having a GPS chip. The method of claim 1, The predetermined time may be a predetermined time so that the session allocation to the PDE and the time interval of the step (c) are within a timeout time allocated to the PDE. Way. The method of claim 1, Wherein the portable terminal is a smart phone, PDA, characterized in that any one of the mobile terminal having a GPS chip providing a location measurement service. In the CP server provides a location measurement service to a mobile terminal having a GPS chip, Receiving a location measurement request from the mobile terminal; Counting a predetermined time; And After the time has passed, requesting the LBSP to allocate a session to the PDE so that the portable terminal transmits the measured base station information and the GPS information to the PDE to receive the corresponding location information. How to provide location measurement service of the terminal. The method of claim 5, Receiving session information on the session allocated by the PDE; And Generating a session information message corresponding to the session information and transmitting the generated session information message to the mobile terminal; And the mobile terminal transmits base station information and GPS information to the PDE using the session information message. The method of claim 6, The session information message is a method of providing a location measurement service of a mobile terminal having a GPS chip, characterized in that transmitted through the message transmission service. The method of claim 5, Receiving session information on the session allocated by the PDE; And And transmitting a command message for controlling the portable terminal to transmit base station information and GPS information to the PDE according to the session information to the portable terminal. The method of claim 5, And the portable terminal accesses the PDE using previously stored access information. The method of claim 5, The predetermined time is a predetermined time interval such that the time interval between the session allocation to the PDE and the mobile terminal to transmit the base station information and the GPS information to the PDE is within a timeout time allocated to the PDE. Method for providing a location measurement service of a mobile terminal having a GPS chip. delete In the CP server for providing a location measurement service to a mobile terminal having a GPS chip, A data communication unit receiving a location measurement request from the portable terminal; A counting unit counting a predetermined predetermined time; After the time elapses, the controller transmits a message requesting session allocation to the PDE to the LBSP through the data communication unit so that the portable terminal transmits the measured base station information and the GPS information to the PDE to receive corresponding location information. ; And When receiving the session information about the session allocated by the PDE from the LBSP, further comprising a message generating unit for generating a session information message corresponding to the session information, The session information message is transmitted to the portable terminal, and the portable terminal transmits base station information and GPS information to the PDE using the session information message. In the CP server for providing a location measurement service to a mobile terminal having a GPS chip, A data communication unit receiving a location measurement request from the portable terminal; A counting unit counting a predetermined predetermined time; After the time elapses, the controller transmits a message requesting session allocation to the PDE to the LBSP through the data communication unit so that the portable terminal transmits the measured base station information and the GPS information to the PDE to receive corresponding location information. ; And When receiving the session information for the session allocated by the PDE from the LBSP, the message generating unit for generating a command message for controlling the mobile terminal to transmit the base station information and GPS information to the PDE according to the session information Wherein, the session information message LBS CP server, characterized in that transmitted to the mobile terminal. In the CP server for providing a location measurement service to a mobile terminal having a GPS chip, A data communication unit receiving a location measurement request from the portable terminal; A counting unit counting a predetermined predetermined time; After the time elapses, the controller transmits a message requesting session allocation to the PDE to the LBSP through the data communication unit so that the portable terminal transmits the measured base station information and the GPS information to the PDE to receive corresponding location information. ; And The mobile terminal connects to the PDE using previously stored access information. In a recording medium which is tangibly embodied to be executed in a portable terminal having a GPS chip for providing a location measurement service, the program can be read by the portable terminal, Requesting location measurement to a CP server through a communication network using a communication protocol supported by an operating system; Releasing a call to the CP server; Transmitting the measured base station information and the GPS information to the PDE through a communication protocol using the GPS chip, using previously stored access information or using a session information message received from the CP server; And Receiving location information calculated using the base station information and the GPS information from the PDE, And counting a predetermined time when the CP server receives the location measurement request, and requests a session allocation between the mobile terminal and the PDE to a location based service provider (LBSP).

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