KR20050091287A - A method and a apparatus of confirmation position information with guarding privacy for mobile phone - Google Patents

Abstract

The present invention is to confirm the location information of the mobile terminal even in the roaming area by the multiple location server of the mobile communication system, the mobile terminal using a mobile communication service in the state registered with the mobile communication system and registered the current location; A second generation telecommunication system that wirelessly connects to a mobile terminal to transmit and receive communication signals, identify a location of the mobile terminal, and perform high-speed data communication; A third generation telecommunication system for wirelessly communicating with a portable terminal, transmitting and receiving a communication signal, checking a position of the portable terminal, and performing multimedia communication including a video signal; A location registration server that accesses a second generation communication system and a third generation communication system and manages and operates location registration information of the mobile terminal; A home location registration unit for accessing a location registration server to record, store and output location information of a mobile terminal registered in a home area; A privacy server for accessing the location registration server and setting the location information providing step of each mobile terminal; A message server for accessing a location registration server and outputting the identified location information of the mobile terminal as a text message; Characterized in that the device comprises a client connected to the location registration server requesting and confirming the location information of the mobile terminal, by providing the location information by the allowed steps to protect the privacy of the individual, roaming, etc. Even in the service area of the mobile communication system, since the location information is accurately identified and the location information providing step is changed and set, there is an effect of changing the step of the location information provided if necessary.

Description

Device and method for checking location information by privacy protection of mobile terminal {A METHOD AND A APPARATUS OF CONFIRMATION POSITION INFORMATION WITH GUARDING PRIVACY FOR MOBILE PHONE}

The present invention relates to positioning of a portable terminal, and more particularly, to a positioning device and a method for protecting a privacy of a portable terminal providing location information of the portable terminal while protecting a personal privacy of a user by a plurality of location servers.

A mobile terminal (MS) is registered in a mobile communication system, and freely moves in a service area formed by a corresponding base station (BS), and is established by monitoring, controlling, and switching of a mobile switching center (MSC). It is a high-tech wireless communication device that has the advantage of communicating by wirelessly carrying and moving directly with a person who wants anytime, anywhere via the path.

However, since the communication equipment as described above includes a mobile terminal (MS), the time used for actual communication is small, and most of the time is carried in a standby state for communication. have.

As described above, to increase the low operation rate or use rate of the mobile terminal (MS), the additional service developed and provided by the mobile communication service provider, for example, wireless Internet (WIRELESS INTERNET) connection, text message transmission, wireless online game (ONLINE GAME), video message transmission, etc., developed and produced by a mobile terminal maker (MAKER) provides additional functions (hereinafter referred to as additional service), for example, phone book (PHONE-BOOK) management, memo writing, New value-added services continue to be developed, including message creation, schedule management, games, cameras, electronic calculators, alarms, ringer settings, and more.

A location information service (LCS: LOCATION SERVICE), which checks and provides a location of a mobile terminal among various additional services as described above, provides location information of the mobile terminal using a short message (SMS) service.

The UMTS (Universal Mobile Telecommunication System) system uses the Global System for Mobile Communication system (GSM), which is widely used in Europe and other areas, and provides high-speed data transmission of 2 Mbps or more. It is a third generation (3GPP) mobile communication system capable of being connected to the Internet easily and continuously while moving anywhere in the world.

In addition, the location registration server or GMLC (GMLC: GATEWAY MOBILE LOCATION CENTER) confirms and provides the location information of each registered mobile terminal.

Hereinafter, an apparatus and a technology for confirming location information of a mobile terminal according to the related art will be described with reference to the accompanying drawings.

1 is a functional configuration diagram of a general positioning mobile communication system, and FIG. 2 is a flowchart of a positioning method of a mobile terminal according to the prior art.

Referring to the attached mobile communication system location information check configuration with reference to Figures 1 and 2 described above, the base station (BTS: BASE TRANSMISSION SYSTEM) is made of a plurality, the base station controller (BSC) (30) Removes and monitors the operations of the plurality of base stations 20, and controls the base station controller 30 directly to the mobile switching center 40, thereby monitoring and controlling the operations of the plurality of base stations 20.

The radio signal transmitted / received by the portable terminal 10 is transmitted to the designated counterpart via the base station 20 and the base station controller 30 through a communication path set by the mobile switching center 40 to switch.

Connected to the mobile switching center 40, a home location register (HLR) 60 confirms and stores location information of a plurality of mobile terminals 10 and 15, and records and registers a location registration server (GMLC) 70. The server functions to search the location information of the plurality of mobile terminals 10 and 15 and provides the identified location information. The location information provided by the location registration server 70 is a short message service (SMS). The location information is transmitted by the message server 50 that transmits the short message.

The interface (INTERFACE) between each system configuration is the protocol (PROTOCOL) as shown in the following table.

Table 1

SYSTEM INTERFACE MSC / MSC SERVER MAP / NO.7 SGSN MAP / NO.7 HLR / HSS MAP / NO.7 GSM SCF MAP / NO.7 EXTERNAL CLIENT HTTP / ETHERNET

The interface information recorded in the table is used in version 4 of the 3rd generation (3GPP) mobile communication system, the MAP is an abbreviation of MOBILE APPLICATION PROTOCOL, and NO.7 is an operation protocol applied to the exchange.

For example, when the portable terminal 10 wants to check the location information of the counterpart portable terminal 15, the third terminal (3GPP: 3RD GENERATION PARTNERSHIP PROJECT) to communicate in the IMT (IMT) 2000 method Requests location information of the other party's mobile terminal 15 by a location services server (LCS: LOCATION SERVICE SERVER) (S1), and the location registration server 75 checks the location. The service (LCS) request is routed to the home location register (HLR) 60 (S2).

The method of providing the location service (LCS) is estimated by calculating the radio signal, and estimated, including the geographical coordinates, date time, estimated location error, GSM / UMTS network, supplementary network service, mobile terminal (MS), It is widely used for the Internet, third generation services, and emergency services.

 The home location registration unit 60, which has received the location service request by the routing, transmits a response to the requested location service (LCS: LOCATION SERVICE) to the location registration server 75, and the location registration server. 75 transmits the confirmed position information of the mobile terminal 15 to the mobile switching center 40 (S4).

The location service (LCS) is a commercial LCS providing services related to the location of a mobile terminal to a service subscriber, an INTERNAL LCS developed to use the location of a mobile terminal necessary for the internal operation of an access network, and a mobile communication requiring emergency calling. It can be provided in various forms, such as EMERGENCY LCS, a typical service for system subscribers, and LAWFUL INTERCEPT LCS, which provides location information of mobile terminals (MS) for legitimate purposes such as investigation cooperation.

The mobile switching center 40 calls the mobile terminal 15 to check the location and authenticates whether or not it is a registered mobile terminal 15 (S5). When the authentication (S5) is completed, the mobile switching center 40 ) Informs the mobile terminal 15 that the location information should be confirmed (S6), and the mobile terminal (MS) 15 receiving the notification detects the position of the mobile terminal 15 in the corresponding mobile switching center 40. The information which can be confirmed is returned (S7).

The mobile switching center 40 transmits the received location information to the base station 30 so as to request accurate location information (S8), and the base station 30 and the mobile terminal 15 transmit and receive the corresponding location information signal. The mobile terminal 15 searches for the correct location information, and searches for the exact location of the mobile terminal 15 by the base station 30 in the state where the location information of the mobile terminal 15 is searched (S9).

The location information of the mobile terminal 15 searched and identified as described above is transmitted to the mobile switching center 40 by the base station 30 (S10), and the mobile switching center 40 constitutes a mobile communication system. The location information server 75 transmits the confirmed location information (S11), and the location registration server 70 transmits the location information of the corresponding mobile terminal 15 to the client 13 (S12).

The client 13 is a program for controlling the position of the portable terminal 15 and is a kind of task program set and operated by the portable terminal 10.

According to the related art of the above-described configuration, since the specific mobile terminal 13 can easily check the location information of the other mobile terminal 15, the advantage of quickly notifying the user of the emergency situation to the outside and various other applications. Service can be developed, but because the location of the mobile terminal 15 is tracked by others, there is a problem that can not prevent the invasion of personal privacy in the state that you do not want.

Referring to JP 2003-0060195, the message transmitted according to the ANSI standard, rather than a method based on the UMTS / GSM standard, is referred to JP 2003-0056266. Overlooking message flow between configurations.

Accordingly, there is a need to develop a portable terminal that protects personal privacy by using a plurality of location registration servers.

It is an object of the present invention to provide an apparatus and method for confirming location information by protecting the privacy of a portable terminal which provides location information while protecting individual privacy by using multiple location registration servers of the portable terminal.

The present invention has been made in order to achieve the above object, a mobile terminal using a mobile communication service in the state registered and registered in the mobile communication system; A second generation communication system wirelessly connecting with the portable terminal to transmit and receive a communication signal, identify a location of the portable terminal, and perform high-speed data communication; A third generation telecommunication system for wirelessly communicating with the portable terminal, transmitting and receiving a communication signal, identifying a position of the portable terminal, and performing multimedia communication including a video signal; A location registration server connected to the second generation communication system and the third generation communication system and managing and managing location registration information of the portable terminal; A home location registration unit for accessing the location registration server to record, store and output location information of the mobile terminal registered in the home area; A privacy server for accessing the location registration server and setting the location information providing step of each mobile terminal; A message server accessing the location registration server and outputting the identified location information of the mobile terminal as a text message; And a client connected to the location registration server to request and confirm the location information of the mobile terminal.

In addition, the present invention has been made in order to achieve the above object, the client requests the location registration server registered location information of the mobile terminal requesting and receiving routing information registered in the home location registration unit; A first protection process of requesting a location confirmation from the home location registration server where the mobile terminal is registered in the process and reviewing a privacy setting step; A routing process of requesting and receiving routing information in order to provide location information of the privacy stage set in the process; A retrieval process of confirming and responding to the location information registered by the mobile terminal of the above process by a communication system and a location registration server; A second protection process for reviewing the privacy stage set by the mobile terminal of the process again; Characterized in that the method consisting of a response process for notifying the client via the location registration server the location information set in the above process.

Hereinafter, an apparatus and method for confirming location information by privacy protection of a mobile terminal of the present invention will be described with reference to the accompanying drawings.

3 is a functional configuration diagram of a location information confirmation device by privacy protection of a mobile terminal according to the present invention, and FIG. 4 is a location information confirmation by privacy protection of a mobile device according to the present invention. 5 is a flowchart illustrating a method of confirming a location information providing range of a privacy server, and FIG. 6 is a flowchart of a method of confirming location information update of a privacy server.

According to the present invention with reference to FIG. 3, a description will be given of a device for confirming location information by privacy protection of a portable terminal. The second generation communication system is to use a mobile communication service in a state registered with a communication system and registering a current location. A mobile terminal (MS) 100 for registering a location on the 110 or third generation telecommunication system 120 and using a mobile communication service and adding a GPS function for accuracy of location registration;

By wirelessly connecting to the mobile terminal 100 to transmit and receive a communication signal, to confirm the location of the mobile terminal and to perform high-speed data communication, and to wirelessly transmit and receive a communication signal by wirelessly connecting to the mobile terminal 100 and at the same time the mobile terminal ( Second generation communication system 110 for accurately detecting and outputting the position registration information of 100) using GPS, etc.,

Wireless connection with the mobile terminal 100 to transmit and receive a communication signal, and confirm the position of the mobile terminal and multimedia communication including the video signal, wireless connection with the mobile terminal 100 to wirelessly transmit and receive the communication signal at the same time A third generation telecommunication system 120 for accurately detecting and outputting location registration information of the mobile terminal 100 using GPS, etc .;

A home location register (HLR) 130 for recording and storing and outputting location information of the mobile terminal 100 registered in the home area by accessing the location registration server 140;

A location registration server (GMLC) 140 connected to the second generation communication system 110 and the third generation communication system 120 and managing and managing location registration information of the mobile terminal 100;

By setting the location information providing step of each mobile terminal 100 by accessing the location registration server 140, the configuration of providing or limiting the location information of the mobile terminal 100 to suit the set step And, if necessary, the privacy server 150 and included in the location registration server 140, and

Accessing the location registration server 140 to output the identified location information of the mobile terminal 100 in a text message, the current location information of the mobile terminal 100 under the control of the location registration server 140 A message server (SMSC: SHORT MESSAGE SERVICE CENTER) 160 for writing and outputting a text message as a text message;

A client (CLIENT) 170 is connected to the location registration server 140 and requests and confirms location information of the mobile terminal 100.

Hereinafter, the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings of an apparatus for confirming location information by privacy protection of the mobile terminal 100.

When the mobile terminal 100 is located in a service area of the second generation mobile communication system 110, the mobile terminal 100 registers a location in the second generation mobile communication system 110 and transmits the third generation mobile communication. When the location is located in the service area of the system 120, the location registration is performed in the third generation communication system 120.

The mobile terminal 100 may selectively wirelessly connect to the second generation communication system 110 and the third generation communication system 120, and the second generation communication system 110 may perform text message communication by high-speed data communication. The third generation telecommunication system 120 is a third generation mobile communication system capable of multimedia communication including an image signal, a data signal such as a text, and an audio signal.

The location registration server 140 applies the location registration information identified from the mobile terminal 100 to the home location registration unit 130, the home location registration unit 130 is the last registered final of the mobile terminal 100 Recording and outputting the location information, the privacy server 150 is set by the portable terminal 100 is input, set the step of providing the location information to record and store.

The location information providing step recorded in the privacy server 150 may include, for example, providing one's own location information to anyone, providing only one's own location information at a limited time, and not providing his own location information at all. It can consist of steps that do not.

The client 170 is a kind of task (TASK) program to operate when another mobile terminal 100 or another subscriber requests the location information of the mobile terminal 100, the client 170 is a location registration server ( When requesting the location information of the mobile terminal 100 to the 140, the home location registration unit 130 is searched to check the location information.

The location information of the mobile terminal 100 identified as described above may be provided as requested by the client 170, through the privacy server 150, and the verification result of the privacy server 150 at all If not set to provide, the location registration server 140 controls the message server 160, so that the corresponding text message is written to the client 170 to be output.

If it is set to provide only the location information of a specific time zone specified as a result of the confirmation of the privacy server 150, the location registration server 140 classifies only the location information of the mobile terminal 100 of the corresponding time zone, the message server 160 Control to compose the corresponding text message, and the written text message is transmitted to the client 170, and if the privacy server 150 is set to provide the location information of all time zones, the location registration server 140, the client 170 controls the message server 160 to write location information of the mobile terminal 100 in a desired time zone or a current time zone, and controls the message server 160. The location information is transmitted to the client 170.

Therefore, the mobile terminal 100 does not provide the location information by the privacy step set by the mobile terminal 100, or provides only the location information of a specific time zone or to anyone.

Restricting the location information, in addition to specifying a time zone may specify a specific location, and various other applications are possible.

Referring to FIG. 5, the process of requesting and receiving a range where the location registration server 140 may provide location information of the mobile terminal to the privacy server is illustrated. Referring to FIG. In the case where the privacy setting of the privacy server 150 provides location information to the location registration server 140 is changed, it is requested to update and receives a response. This can be.

Hereinafter, a method of confirming location information by privacy protection of a mobile terminal according to the present invention will be described with reference to FIG. 4.

The client (CLIENT) 170 requests and receives the routing information registered in the home location registration unit 130 when the location registration server 140 requests the registered location information of the mobile terminal 100. Requesting location information of the mobile terminal 100 by the location registration server 140 (ST10); The location registration server 140 of the step ST10 is a step of requesting location routing information to the home location registration unit 130 (ST20); The home location registration unit 130 of the process ST20 is a request process consisting of a process (ST30) for responding to the positioning routing information of the mobile terminal 100,

In the request process, the mobile terminal 100 requests a location confirmation to the registered home location registration server 140 and examines the privacy setting step. The home location registration server is determined by the routing information identified in the request process. Connecting to 140 and requesting location information of the mobile terminal 100 (ST40); A first protection process comprising a step (ST50) of restricting outputting of the location information by checking a privacy protection step set and registered by the mobile terminal 100 providing the location information of the process ST40;

Requesting and receiving routing information to provide location information of a privacy step set in the first protection process, requesting location routing information to the home location registration unit 130 by the home location registration server 140 ( ST60); The home location registration unit 130 of the step (ST60) is a routing process consisting of providing a routing (ROUTING) information of the mobile terminal 100 to the home location registration server 140 (ST70),

The mobile terminal 100 of the routing process confirms and responds to the registered location information by the communication systems 110 and 120 and the location registration server 140, and the mobile terminal by the home location registration server 140. Requesting location confirmation from the location registration server 140 at which 100 is currently registered (ST80); Searching for and confirming the location of the mobile terminal 100 through the communication system under the control of the location registration server 140 in which the mobile terminal 100 is currently registered (ST90); A search process comprising the step ST100 of providing the location information of the mobile terminal 100 to the home location registration server 140 by the location registration server 140 in which the mobile terminal 100 is currently registered;

A second protection process (ST110) for reviewing the privacy stage set by the mobile terminal of the search process;

Informing the client (CLIENT) of the location information set in the step (ST110) through the location registration server 140, the home location registration server 140 requests the location information of the mobile terminal 100 confirmed Providing to the location registration server 140 (ST120); The request location registration server 140 is characterized in that the method consists of a response process consisting of the step (ST130) of providing the confirmed location information of the mobile terminal 100 to the client 170.

Hereinafter, according to the present invention having the above-described configuration, a method of confirming location information by privacy protection of a mobile terminal will be described in detail with reference to the accompanying drawings.

The client 170 requests location information of the mobile terminal 100 from the location registration server 140 (ST10).

The location registration server 140 may be a number, for example, a registered and registered home location registration server (HOME GMLC) 140, the client requesting the location information of the mobile terminal (REQUESTING) There is a request location registration server (REQUESTING GMLC) 140 configured to be connected to another mobile system as being connected to the 170, and the visited location registration server when the mobile terminal 100 is in a service area of another communication system by roaming service. (VISITED GMLC) 140, the same reference numerals for the convenience of description and will be described.

The request location registration server 140, which has received the request for the location of the mobile terminal 100, requests routing information on which the mobile terminal 100 is located from the home location registration unit (HLR) 130 (ST20). The home location registration unit (HLR) 130 provides routing information of the corresponding mobile terminal 100 to the request location registration server 140 (ST30).

The request location registration server 140 makes a location request to the home location registration server 140 (ST40), and the home location registration server 140 searches for a privacy server 150 to set the privacy information range. Check (ST50).

As an example, if the location information providing setting range confirmed by the home location registration server 140 from the privacy server 150 is not provided at all (ST50), the process proceeds to the twelfth step (ST120) or the corresponding response or After replying (ST120), the request location registration server 140 receives the reply and responds to the client (ST130).

For example, if all of the location information providing range confirmed from the privacy server 150 is provided or partially provided by the home location registration server 140 (ST50), the home location registration server 140 is a home location The location information of the mobile terminal 100 is requested to the registration unit 130 (ST60), and the home location registration unit 130 received the request provides the location information of the mobile terminal 100 (ST70).

The home location registration server 140 provided with the location information of the mobile terminal 100, for example, requests the mobile terminal 100 to check the location of the visited location registration server 140 that is being visited by the roaming service; ST80), as another example, when the mobile terminal 100 is receiving a home service in the home service area, the mobile terminal 100 checks its own location.

In the present invention, the mobile terminal 100 will be described for the location check in the state of receiving a roaming service.

The visited location registration server 140 receiving the location request of the mobile terminal 100 from the home location registration server 140 is a switching center (MSC), a base station controller (BSC) and a base station ( BTS) checks the exact position of the mobile terminal (MS) 100, and if necessary, accurately checks the position information through the GPS (ST90).

The location information of the correctly confirmed mobile terminal 100 is responded to the home location registration server 140 in response (ST100), and in order to check whether the location information providing step of the mobile terminal 100 has been changed. Check whether the information is updated in the privacy server 150 (ST110), and respond to the request location registration server 140 with the location information corresponding to the step checked and set in the process (ST110) (ST120), The request location registration server 140 controls the message server 160 to output the exact location information of the mobile terminal 100 to the client 170 as a text message (ST130).

Therefore, since the location information is provided in part, in whole, or not at all by the privacy information providing step set by the mobile terminal 100, there is an advantage of not exposing its current location.

According to the present invention having the above-described configuration, since the step of providing the location information of the mobile terminal is set, there is an industrial use effect of protecting the privacy of the individual by providing the location information according to the allowed step.

In addition, even in the service area of another mobile communication system due to roaming or the like, there is an effect that is convenient in use for accurately confirming location information.

In addition, since the location information providing step is changed and set, there is a convenient effect in use of changing the step of location information provided if necessary.

1 is a functional configuration diagram of a general positioning mobile communication system,

2 is a flowchart illustrating a positioning method of a mobile terminal according to the prior art;

3 is a functional configuration of the location information confirmation device by the privacy protection of the present invention mobile terminal,

4 is a flowchart illustrating a method of confirming privacy information of a mobile terminal of the present invention;

5 is a flowchart illustrating a method for confirming a location information providing range of a privacy server;

6 is a flowchart illustrating a method of confirming location information update of a privacy server.

** Explanation of symbols on the main parts of the drawing **

100: portable terminal 110: second generation communication system 120: third generation communication system

130: home location register 140: location registration server 150: privacy server

160: message server 170: client

Claims (12)

A mobile terminal using a mobile communication service registered in a mobile communication system and registering a current location; A second generation communication system which wirelessly connects to the portable terminal, transmits and receives a communication signal, checks the position of the portable terminal, and performs high-speed data communication; A third generation telecommunication system for wirelessly communicating with the portable terminal, transmitting and receiving a communication signal, confirming the position of the portable terminal, and performing multimedia communication including a video signal; A location registration server that accesses the second generation communication system and the third generation communication system and manages and operates location registration information of the mobile terminal; A home location registration unit for accessing the location registration server to record, store and output location information of a mobile terminal registered in a home area; A privacy server for accessing the location registration server and setting the location information providing step of each mobile terminal; A message server for accessing the location registration server and outputting the identified location information of the mobile terminal as a text message; And a client for accessing the location registration server to request and confirm the location information of the mobile terminal. The method of claim 1, wherein the mobile terminal, Location information confirming device by the privacy protection of the mobile terminal, characterized in that the location registration to the second generation or third generation communication system to use a mobile communication service and add a GPS function for the accuracy of the location registration. According to claim 1, The second generation communication system and the third generation communication system are wirelessly connected to the portable terminal and wirelessly receive and transmit a communication signal, and detect and output location registration information of the portable terminal. Location information confirmation device. The method of claim 1, wherein the privacy server, Apparatus for identifying the location information by privacy protection of the portable terminal, characterized in that the configuration of the mobile terminal is configured to provide suitable, limited or not provided in the set step. The method of claim 1, wherein the message server, The location information verification apparatus according to the privacy protection of the mobile terminal, characterized in that the configuration of the current location information of the mobile terminal by the control of the location registration server to create and output a text message. The method of claim 1, wherein the privacy server, Position information confirmation device by the privacy protection of the mobile terminal, characterized in that the configuration is included in the location registration server. If the client requests the registered location information of the mobile terminal to the location registration server, the request process of requesting and receiving the routing information registered in the home location register, and A first protection process of requesting a location confirmation to a home location registration server in which the mobile terminal is registered and reviewing a privacy setting step; A routing process of requesting and receiving routing information to provide location information of a privacy stage set in the above process; A search process for confirming and responding to the location information registered by the mobile terminal of the above process by a communication system and a location registration server; A second protection process for reviewing the privacy level set by the mobile terminal of the process again; The location information confirmation method according to the privacy protection of the mobile terminal, characterized in that the response process of notifying the client via the location registration server the location information set in the process. The method of claim 7, wherein the request process, Requesting, by the client, location information of the mobile terminal from the location registration server; The location registration server of the process of requesting location routing information to the home location register; The home location registration unit of the process of the location information confirmation method by the privacy protection of the mobile terminal, characterized in that consisting of the process of responding to the positioning routing information of the mobile terminal. The method of claim 7, wherein the first protective process, Accessing a home location registration server according to the routing information identified in the request process and requesting location information of the mobile terminal; A method of confirming location information according to privacy protection of a mobile terminal, characterized in that the mobile terminal providing location information of the process checks the privacy step set and registered and outputs the location information in a limited manner. The method of claim 7, wherein the routing process, Requesting location routing information from the home location registration server by the home location registration server; The home location registration unit of the process comprises the step of providing the routing information of the mobile terminal to the home location registration server, the location information confirmation method by the privacy protection of the mobile terminal. The method of claim 7, wherein the searching process, Requesting, by the home location registration server, a location check to a location registration server in which the mobile terminal is currently registered; Searching for and confirming the location of the mobile terminal through a corresponding communication system under the control of a location registration server in which the mobile terminal is currently registered; And providing the location information of the mobile terminal to the home location registration server by the currently registered location registration server. The method of claim 7, wherein the response process, Providing the location information of the mobile terminal identified by the home location registration server to the request location registration server; And providing the confirmed location information of the mobile terminal to the client by the request location registration server.