KR100928641B1 - Terminal authentication method for location service and location positioning server for it - Google Patents

Abstract

The present invention relates to a terminal authentication method for a location service and a location server for the same.

The present invention is a location server that provides a terminal authentication function to provide a location service to a terminal, the location service request message containing the terminal identification information, and receives a response to the received location service request message Location service message transmission and reception management unit for transmitting a location service response message; Positioning information message transmission and reception management unit for transmitting and receiving a location information message with the terminal; A terminal information table manager which stores the terminal identification information included in the location service request message in a terminal information table; A terminal information table retrieval management unit for retrieving whether the terminal identification information included in the location service request message and the location location information message exists in the terminal information table; And a terminal authentication management unit for determining whether to authenticate the terminal according to a search result of the terminal information table search management unit.

According to the present invention, when providing a positioning service through the interworking method between a TCP / IP terminal and a positioning server, the positioning server performs a separate terminal authentication procedure function when interworking with the terminal, the terminal positioning server It is effective to improve the security of location services by solving the problem that unauthorized use is not possible for the purpose of location services for malicious purposes.

Terminal, authentication, location server

Description

Method of terminal authentication for location service and location positioning server for it {Method and Server for Authenticating Terminal for Determinating Location}

The present invention relates to a terminal authentication method for a location service and a location server for the same. More specifically, the present invention, when providing a positioning service through the interworking method between the TCP / IP terminal and the positioning server, the positioning server performs a separate terminal authentication procedure function when interworking with the terminal, Regarding the terminal authentication method for the positioning service having the effect of improving the security of the positioning service by solving the problem that the positioning server can be used for malicious purposes not for the purpose of the positioning service, and for the positioning server for the same will be.

Nowadays, the location service is provided by using various methods of providing the location information of the terminal. The conventional method of providing the location service was the cell-based location information providing method. . This is a method of providing location information based on the location of the base station where the terminal is located. That is, the cell-based positioning service provides the positioning service with the accuracy of the radius of the base station, which is accurate because the positional location result information is provided based on the error of the radius of the base station. If you need it can not be used.

The GPS (Global Positioning System) method is used to overcome the cell-based location service providing method and provide accurate location information. This is a method of providing location information using satellites, and provides accurate location information of a device requiring location information such as a corresponding terminal, thereby providing various location positioning services.

This GPS method is applied to a terminal and a mobile communication network to give a quick accuracy in determining the position of the terminal. There are two methods of receiving location information of a terminal in a mobile communication network using GPS, a DBM (Data Burst Message) method and a TCP / IP method. First, in the DBM method, the location determination server (Position Determination Entity) is located between the terminal and the terminal in order to recognize the location of the terminal. The position information is obtained by using the TCP / IP method, and the position location server obtains the position information of the terminal through the transmission and reception between the positioning server and the terminal using the TCP / IP protocol. The location positioning server mentioned above may be a PDE (Position Determination Entity: PDE, hereinafter referred to as 'PDE').

In the above-described DBM method, since the terminal does not arbitrarily perform the location call processing between the terminal and the location server, the problem of malicious use of the location server by the terminal does not occur, but the remaining conventional TCP / IP method In the location positioning service through the interworking method between the terminal and the location positioning server, the location positioning server processes the location location call at the request of the terminal without an authentication process for a separate terminal when interworking with the terminal. Therefore, in the case of the TCP / IP method, the terminal can receive the location service normally by simply acquiring the URL information and the connection port information of the location server. The service causes a problem that the location server can be used for malicious purposes not for normal location service purposes.

In order to solve this problem, an object of the present invention, when providing a positioning service through the interworking method between the TCP / IP terminal and the positioning server, the positioning server performs a separate terminal authentication procedure function when interworking with the terminal Thus, the terminal solves the problem that the location server can be used for malicious purposes not for the purpose of location service, thereby improving the security of the location service.

According to an aspect of the present invention for achieving the above object, in a positioning server for providing a terminal authentication function to provide a positioning service to the terminal, receiving a positioning service request message containing the terminal identification information, A location service message transmission / reception manager for transmitting a location service response message which is a response to the received location service request message; Positioning information message transmission and reception management unit for transmitting and receiving a location information message with the terminal; A terminal information table manager which stores the terminal identification information included in the location service request message in a terminal information table; A terminal information table retrieval management unit for retrieving whether the terminal identification information included in the location service request message and the location location information message exists in the terminal information table; And a terminal authentication management unit for determining whether to authenticate the terminal according to a search result of the terminal information table search management unit.

According to another aspect of the present invention for achieving this object, in a method for the location positioning server to authenticate the terminal, (a) a location for receiving a location service request message containing the terminal identification information of the terminal; Positioning service request message receiving step; (b) generating a terminal information table for storing the terminal identification information in a terminal information table; (c) a terminal access step of receiving a location information message including the terminal identification information from a connected terminal; (d) a terminal information table retrieval step of retrieving whether the terminal identification information is present in the location information message in the terminal information table; And (e) a terminal authentication step of authenticating the connected terminal when the terminal identification information is retrieved in step (d).

As described above, according to the present invention, when providing a positioning service through the interworking method between the TCP / IP terminal and the positioning server, the positioning server performs a separate terminal authentication procedure function when interworking with the terminal, The terminal solves the problem that the location server can be used for malicious purposes, not for the purpose of location service, thereby improving the security of the location service.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function is obvious to those skilled in the art or may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a diagram showing an entire system including a location server for providing a terminal authentication function for a location service according to a preferred embodiment of the present invention.

Referring to FIG. 1, an entire system including a location server that provides a terminal authentication function for a location service according to a preferred embodiment of the present invention is a mobile station (MS) 100 to be provided with a location service. Location positioning that performs authentication functions of the BTS (Base Transceiver System) 110, the BSC (Base Station Controller) 120, the Packet Data Serving Node (PDSN) 160, the router 170, and the terminal 110. Location-based service platform for receiving a location service request from the server 130, Mobile Positioning Center (MPC, hereinafter referred to as 'MPC') 140 and the terminal 110 and transmits a service response thereto (Location Based Service Platform: LBSP, hereinafter referred to as 'LBSP'). The connection shown in bold solid line is No. 1, which is a new common line signaling method standardized by ITU-T. 7 Signaling, the dotted line connection consists of Ethernet over which packet data is transmitted. The above-described location positioning server 130 may be a Position Determination Entity (PDE) (hereinafter, referred to as 'PDE').

Referring to FIG. 1, the terminal 110 may be provided with a positioning service by interworking with the positioning server 130, and in the interworking method between the terminal 110 and the positioning server 130 to provide the positioning service. There are DBM (Data Burst Message: DBM, hereinafter referred to as 'DBM') and TCP / IP method, and the interworking method for applying the terminal authentication function according to the present invention among two interworking methods is a security problem of unauthorized use. TCP / IP method that generates

Referring to FIG. 1, there are three paths for the location server 130 to perform a location function by interworking with the terminal 110 in a TCP / IP manner. First, the A path is a location positioning call processing interworking path using the TCP / IP method between the location server 130 and the terminal 110, and the B path is the LBSP 150 in order for the terminal 110 to receive the location service. As a path interworking with the terminal, the terminal 110 transmits a service request message to the LBSP 150 and receives a service response message including location result information such as a map, which is a result of the location service request, from the LBSP 150. This is the path. Thirdly, the C path is a path through which the LBSP sends a location service request message to the location server 130 and receives a location service response message accordingly. The above-described positioning call processing may be performed based on the IS-801 standard.

In order to provide the positioning service to the terminal 110 through the three paths described above, the positioning server 130 needs a terminal authentication function for proceeding with the positioning call through the A path to the terminal 110. This terminal authentication function and procedure will be described in detail with reference to FIGS. 2 and 3.

2 is a diagram illustrating a location server for providing a terminal authentication function for a location service according to a preferred embodiment of the present invention.

Referring to FIG. 2, the location server 130, which provides a terminal authentication function to provide a location service to a terminal, includes a location service message transmission and reception management unit 131, a location information message transmission and reception management unit 132, and terminal information. The table manager 133, the terminal information table retrieval manager 134, and the terminal authentication manager 135 are configured.

The location service is started by the terminal sending a service request message to the LBSP, and the LBSP transmits the location service request message to the location server 130 through the MPC, so that the operation of the location server 130 is driven. Will be.

The location service message transmission / reception manager 131 receives a location service request message including the terminal identification information of the terminal from the MPC, and transmits a location service response message, which is a response to the location service request message, to the MPC. To perform. The above terminal identification information may be all information for identifying a terminal including MIN (Mobile Indentification Number: MIN) information.

The location information message transmission and reception management unit 132 receives a location information message including the terminal identification information from the terminal, and performs a function of transmitting and receiving the location information message with the terminal after the terminal authentication. In addition, the time information received from the location information message is stored in the terminal information table as terminal terminal access time information. The aforementioned location information message may be a message based on the IS-801 standard, and may also be referred to as an IS-801 message.

The terminal information table manager 133 stores the terminal identification information included in the location service request message in the terminal information table.

The terminal information table search management unit 134 performs a function of searching whether the terminal identification information included in the location service request message and the location location information message exists in the terminal information table.

If the terminal authentication table search management unit 134 mentioned above can search the terminal identification information included in the location information message in the terminal information table, the terminal authentication management unit 135 proceeds with the location positioning call processing for calculating the location of the terminal. To perform the terminal authentication function to authenticate the terminal.

The location service request message received by the location service message transmission / reception manager 131 is a message transmitted from the LBSP receiving the service request message from the terminal to the location server via the MPC, and unique information for identifying the terminal. Including the terminal identification information, and further includes the call type (Call Type) information for the identification of the positioning method and the identification of the location service request message, the call type information corresponding to the positioning method is MS-Assisted call One of identification information and MS-Based call identification information. In a positioning system, such a positioning service request message may be embodied as a Geolocation Position Request Invoke (GPOSREQ) message.

When the location service message transmission / reception manager 131 receives the location service request message, the location service message checks the reception time information of the location service request message.

After the location service message transmission / reception manager 131 confirms the terminal identification information, the call type information and the reception time information of the location service request message included in the location service request message, the terminal information table search management unit 134 It is determined whether the terminal identification information included in the location service request message can be retrieved from the mobile station table (MS Table) in the terminal information table management unit 133.

If the terminal information table retrieval management unit 134 cannot retrieve the terminal identification information included in the location service request message received by the location service message transmission / reception management unit 131 from the terminal information table in the terminal information table management unit 133. In the terminal information table manager 133, terminal identification information which is unique information for identifying a terminal, call type information that is information for identifying a positioning method, reception time information of a positioning service request message, and a terminal The terminal recently accessed time information, which is time information last accessed, is newly stored in the terminal information table.

When the terminal information table retrieval management unit 134 can retrieve the terminal identification information included in the location service request message received by the location service message transmission / reception management unit 131 from the terminal information table in the terminal information table management unit 133. The terminal information table manager 133 updates and stores the reception time information and the terminal recent access time information corresponding to the terminal identification information on the terminal information table.

That is, whether the terminal identification information included in the location service request message received by the location service message transmission / reception manager 131 is present or absent in the terminal information table in the terminal information table manager 133 or not. The terminal identification information, which is unique information, the call type information, which is information for identifying the positioning method, the reception time information of the location service request message, and the terminal last access time information, which is the time information the terminal last accessed, are newly updated in the terminal information table. Will be created.

The terminal information table in the terminal information table management unit receives terminal identification information included in the location information message received by the terminal information table retrieval management unit 134 based on the IS-801 standard from the location information message transmission / reception management unit 132. If it is impossible to search, the terminal authentication management unit 135 performs a terminal authentication rejection function that releases the connection by unauthenticating the terminal and rejects the call processing for positioning the terminal.

That is, the terminal identification information in the location service request message transmitted to the location service message transmission and reception management unit 131 in the location server by the location service request and the terminal identification information included in the location information message transmitted from the terminal thereafter. Only if the same, the terminal authentication management unit 135 is to allow the terminal to proceed with the positioning call processing for the positioning service.

The positioning method can be divided into MS-Assisted and MS-Based methods. The functions related to location services performed by the positioning server after terminal authentication will be described by dividing into MS-Assisted and MS-Based methods, respectively. These two methods are identified through call type information included in the location service request message received from the location service message transmission and reception management unit 131.

First, with respect to the MS-Assisted method, functions related to location services performed by the location server after terminal authentication will be described as follows.

If the call type information included in the location service request message received from the location service message transmission / reception management unit 131 is MS-Assisted call identification information, the location server is located with the terminal authenticated by the terminal authentication manager 135. A location calculation call of a TCP / IP method for positioning is further performed, and further includes a location calculation management unit which transmits and receives a location information message based on the IS-801 standard between the terminal and the location server, and calculates a location. do.

If the call type information included in the location service request message received from the location service message transmission / reception management unit 131 is MS-Assisted call identification information, after the location calculation of the terminal is performed by the location calculation manager in the location server. The terminal information table manager 133 deletes terminal identification information, call type information, reception time information, and terminal recent access time information stored in the terminal information table. In other words, in the MS-Assisted method, once the location service is finished, all information stored in the terminal information table is deleted when the location service is initially provided.

That is, in the case of MS-Assisted call, the location server provides the location service by proceeding with the location call processing procedure only for the terminal receiving the location service request message from the MPC.

If the call type information included in the location service request message received from the location service message transmission / reception management unit 131 is MS-Assisted call identification information, after the location of the terminal is calculated by the location calculation manager in the location server. After deleting the terminal identification information, the call type information, the reception time information, and the terminal recent access time information previously stored by the terminal information table management unit 133, the location service message transmission and reception management unit 131 for the location of the terminal The positioning service response message including the result information is transmitted to the LBSP via the MPC, and the LBSP transmits a service response message including the result information on the positioning to the terminal, thereby providing one location positioning service. In a positioning system, such a positioning service response message may be implemented as a gposreq (Geolocation Position Request return result).

After the location service message transmission / reception manager 131 receives the location service request message whose call type information is MS-Assisted call identification information, the terminal information table management unit receives the A-timeout from the location information message transmission / reception manager 132. If the location information message is not received within the MS-Assisted Positioning-Time Out, the terminal identification information, call type information, reception time information, and terminal recent access previously stored in the terminal information table after the location service request message is received. All time information will be deleted.

In the above-mentioned A-timeout, after the location service message transmission / reception manager 131 receives the location service request message, the terminal information table, the call type information, the terminal information stored in the terminal information table by the terminal information table manager 133, As the reception time information and the terminal last access time information are valid time information, the A-timeout can be set differently according to the system environment.

In the second MS-Based method including the MS-Assisted method and the MS-Based method, the functions related to the location service performed by the location server after the terminal authentication will be described as follows.

When the call type information included in the location service request message received by the location service message transmission / reception management unit 131 is MS-Based call identification information, the terminal authentication management unit 135 allows the terminal to directly calculate the location. Authenticate so that the location call proceeds.

After the position calculation of the terminal authenticated by the terminal authentication manager 135 is directly performed by the terminal, the terminal information table manager 133 updates the terminal recent access time information corresponding to the terminal identification information stored in the terminal information table. do.

After the terminal information table manager 133 updates the terminal recent access time information corresponding to the terminal identification information stored in the terminal information table, the location service message transmission / reception manager 131 is a response to the location service request message. The positioning service response message is sent to the LBSP via the MPC to complete the provision of the positioning service once.

After the position calculation of the terminal authenticated by the terminal authentication manager 135 is directly performed by the terminal, the terminal information table manager 133 updates terminal last access time information corresponding to the terminal identification information stored in the terminal information table. Then, when the terminal is to be provided with the positioning service again within the B-timed (MS-Based Positioning-Time Out), the positioning information message transmission and reception management unit 132 receives another positioning information message, such other location If the terminal identification information included in the positioning information message is present in the terminal information table, the terminal authentication manager 135 immediately authenticates the terminal and proceeds with the location positioning call of the terminal. That is, in the case of MS-Based call, the location server receives the location service request message and terminates the location call processing procedure with the terminal connected to the location server for the first time, and then requests the service from the terminal within the B-timeout. Even without receiving the location service request message from the MPC, the location information message is received and the location service is immediately provided through the terminal authentication procedure. The B-timeout mentioned above is used when the terminal is to be provided with the positioning service again, and the terminal identification information, call type information, reception time information, and terminal recent access time information that were stored in the terminal information table when the first positioning service was provided. It is the time to save continuously, and the B-timeout can be set differently according to the positioning server.

When the call type information included in the location service request message received by the location service message transmission / reception manager 131 is MS-Based call identification information, the terminal information table manager 133 receives the reception time information included in the terminal information table. Or periodically checking terminal recent access time information, and if the checked information is different from the current time information more than the B-timeout, all of the terminal identification information, call type information, reception time information, and terminal recent access time information. In this case, the B-timeout causes the terminal to perform all procedures from the beginning.

According to the MS-Based method and the MS-Assisted method described above, the method of providing a location service performed by the location server after the terminal authentication function has been described, and the terminal authentication function includes a TCP / IP method and a DBM method. This function is applied to TCP / IP among the terminal / location positioning server interworking methods.

3 is a flowchart illustrating a terminal authentication function provided by a positioning server in a positioning service providing flowchart provided to a terminal according to an exemplary embodiment of the present invention, and FIG. 4 illustrates terminal authentication in a positioning service providing flowchart provided to a terminal. This is a flowchart of the post-function procedure.

Referring to FIG. 3, after the terminal transmits a service request message for positioning of the terminal to the LBSP in order for the terminal to receive the positioning service in association with the positioning server, the method for the positioning server to authenticate the terminal. Location location service request message receiving step (S 300), the terminal information table generation step (S 310), the terminal connection step (S 320), the terminal information table search step (S 330) and the terminal authentication step (S 340) These five steps are described again in detail below.

Referring to FIG. 3, after the terminal transmits a service request message for positioning of the terminal to the LBSP in order for the terminal to receive the positioning service in association with the positioning server, the method for the positioning server to authenticate the terminal. Is a location service request message receiving step of receiving a location service request message containing the terminal identification information of the terminal (S 300), and the location information server stores the terminal identification information in the terminal information table. Generating step (S 310), the terminal location step receives the location information message containing the terminal identification information from the terminal connected to the location server server (S 320), the location server is located in the terminal information table Terminal information table search step (S330) for searching whether the terminal identification information in the information message is present and the previous step When the terminal identification information is retrieved in the terminal information table search step (S 330), the location positioning server includes a terminal authentication step (S 340) for authenticating the terminal.

The location service request message received in the location location service request message reception step (S 300) is a message transmitted from the LBSP to the location server via the MPC, and includes terminal identification information which is unique information for identifying the terminal. It further includes call type information for identification of a location method and identification of a location service request message, and call type information corresponding to the location method includes MS-Assisted call identification information and MS-Based call identification. One of the information.

Referring to FIG. 3, the above-described location service request message receiving step S 300 will be described again.

Referring to FIG. 3, in the above-described positioning service request message receiving step (S 300), when the positioning server receives the positioning service request message (S 302), the terminal identification information included in the positioning service request message is simultaneously included. And receiving time information of the location service request message (S304).

Referring to FIG. 3, after confirming the terminal identification information and the reception time information of the location location service request message from the above-described location location service request message receiving step S 300, the location information service in step S310 is generated. The terminal identification information included in the request message is searched in the terminal information table (S 312), and if it is not present because it does not exist, the terminal identification information, which is unique information for identifying the terminal, for identifying the positioning method. The call type information, call reception time information of the location service request message, and terminal last access time information, which is time information last accessed by the terminal, are stored in the terminal information table (S316). However, if the terminal identification information included in the location service request message received in the location service request message receiving step (S 300) is stored in the terminal information table, the received time information and the terminal recent time on the terminal information table are retrieved. The access time information is updated (S314) and stored.

Thereafter, the positioning server waits (S 322) and receives the positioning information message from the terminal which has requested the service (S 324), and checks the terminal identification information included in the positioning information message (S 326). Then, the terminal information table search step (S 330) is performed. In addition, the time information received from the location information message is stored in the terminal information table as terminal terminal access time information.

Referring to FIG. 3, in the terminal information table search step (S 330), the terminal identification information included in the received location information message is searched in the terminal information table (S 332). In step S), the terminal performs authentication (S 342) for the process of positioning the call. If not, the positioning server releases the connection by unauthenticating the terminal and rejects the call process for the positioning of the terminal. Terminal authentication denial step (S 344) is performed.

The positioning method can be divided into the MS-Assisted method and the MS-Based method. The positioning service related functions performed by the positioning server after the terminal authentication step (S 340) are divided into the MS-Assisted method and the MS-Based method, respectively. Explain. These two methods are identified through call type information included in the location service request message received from the location service message transmission and reception management unit 131.

First, with respect to the MS-Assisted method, the location service related functions performed by the location server after the terminal authentication (S 342) in the terminal authentication step (S 340) will be described as follows.

4, after the terminal authentication (S 342) in the terminal authentication step (S 340) described above, the call type information included in the location service request message received in the location service request message receiving step (S 300). (S 344), and if the call type information is MS-Assisted call identification information, the position location call of the TCP / IP method for positioning of the terminal proceeds, the position of the terminal to calculate the position of the terminal directly from the positioning server The calculation step S 346 is performed.

Referring to FIG. 4, after the location calculation step (S 346) of positioning the terminal is performed, the terminal deletes terminal identification information, call type information, reception time information, and terminal recent access time information stored in the terminal information table. The information table deleting step S348 is performed.

4, after the terminal information table deletion step (S 348), the location server sends a location service response message including the result information on the location of the terminal via the MPC to the LBSP (S 350). In addition, the LBSP transmits a service response message including the result information on the positioning to the terminal, thereby providing one location positioning service.

However, after the above-described positioning request receiving step (S 300), if the above-described terminal connection step (S 320) of receiving the positioning information message from the terminal within the A-timeout is not performed, the above-described terminal information table generation step A terminal information table deleting step (S 348) of deleting terminal identification information, call type information, reception time information, and terminal recent access time information stored in the terminal information table generated at S 310 is performed, and thus the positioning service is performed. It is terminated without being provided.

Referring to FIG. 4, the above-mentioned A-timeout includes identifying a terminal stored in the terminal information table by the terminal information table manager 133 after the location service message transmission / reception manager 131 receives the location service request message. The information, the call type information, the reception time information and the terminal last access time information are valid time information, and the A-timeout can be set differently according to the system environment.

In the second MS-Based method, which includes the MS-Assisted method and the MS-Based method, the location server related to the location service performed after the terminal authentication (S 342) in the terminal authentication step (S 340). The functions are described below.

Referring to FIG. 4, when the call type information included in the location service request message received in the location location request reception step S 300 is MS-Based call identification information, after the terminal authentication step S 340. In step S347, a location call of a TCP / IP method for location of a terminal is performed, and a location calculation step of directly calculating a location by a terminal is performed. After calculating the location calculation step, the location positioning server performs a terminal information table update step (S 349) for updating the terminal last access time information corresponding to the terminal identification information stored in the terminal information table to the current time.

4, after the terminal information table update step (S 349), the location server sends a location service response message, which is a response to the location service request message to the LBSP via the MPC (S 351), One positioning service is completed.

If after the terminal information table updating step, i.e. after one positioning service is completed, the terminal is to receive the positioning service again within the B-timeout, the positioning server receives the above-described positioning request step (S). 300 and bypasses the terminal information table generation step (S 310) and immediately after the terminal access step (S 320) to continue to provide a new location positioning service to the terminal.

Referring to FIG. 4, the MS server periodically checks reception time information or terminal recent access time information included in the terminal information table, and if the difference from the current time information is greater than or equal to B-timeout. The terminal information table for deleting terminal identification information, call type information, reception time information and terminal recent access time information is deleted and managed (S 353), so that all procedures for the terminal after the B-timeout have been performed from the beginning. To induce.

According to the MS-Based method and the MS-Assisted method described above, the method of providing a location service performed by the location server after the terminal authentication function has been described, and the terminal authentication function includes a TCP / IP method and a DBM method. This function is applied to TCP / IP among the terminal / location positioning server interworking methods.

5 and 6 are diagrams illustrating a flow chart for providing a positioning service including a terminal authentication method by dividing the MS-Assisted method and the MS-Based method, respectively.

5 is a diagram illustrating a location service providing flowchart including a terminal authentication method for an MS-Assisted type location service according to a preferred embodiment of the present invention.

Referring to FIG. 5, the terminal transmits a service request message to the LBSP in order to receive the location service (S 500). In this way, the LBSP transmits the location service request message to the location server via the MPC (S 502, S 504).

The positioning service request message includes terminal identification information which is unique information for identifying the terminal, and further includes call type information for identification of the positioning method and identification of the positioning service request message. The call type information corresponding to the positioning method is one of the MS-Assisted call identification information and the MS-Based call identification information. In FIG. 5, since the MS-Assisted method is assumed, the call type information is set to the MS-Assisted call identification information. This has been.

When the location server receives the location service request message, it simultaneously checks the terminal identification information included in the location service request message and the reception time information of the location service request message.

Referring to FIG. 5, after checking the terminal identification information and the reception time information of the positioning service request message from the positioning service request message, the positioning server has the terminal identification information included in the positioning service request message in the terminal information table. If the search is not performed because it does not exist (S506), the terminal identification information, which is unique information for identifying the terminal, the call type information (Call Type) information for identifying the positioning method, and the location service request The terminal recent access time information, that is, the reception time information of the message and the time information last accessed by the terminal, is stored in the terminal information table (S506). However, if the terminal identification information included in the positioning service request message received in the positioning service request message receiving step is stored in the terminal information table, the received time information and terminal recent access time information on the terminal information table are retrieved. It is updated and stored (S506).

Thereafter, the positioning server waits and receives the positioning information message from the terminal that has requested the service (S508), and checks the terminal identification information included in the positioning information message, and checks the received positioning information message. The terminal identification information is searched for in the terminal information table (S 510). If the search is performed, the terminal performs authentication (S 510) for the process of location call processing. The authentication is released, the terminal is denied, and the terminal authentication rejection of the call processing progress for positioning is performed.

Referring to FIG. 5, when the location service request message is received, the call type information included in the location service request message is checked, and when the call type information is MS-Assisted call identification information, TCP / IP for location of the terminal is determined. The location positioning call proceeds (S 512), and performs a location calculation step of directly calculating the location of the terminal in the location server (S 512).

Referring to Figure 5, after the location calculation step (S 510) for positioning the location of the terminal is performed, the positioning server is the terminal identification information, call type information, reception time information and the terminal stored in the terminal information table (MS Table) The latest access time information is deleted (S514).

Referring to FIG. 5, after the terminal information table is deleted (S 514), the location server sends a location service response message including the result information on the location of the terminal to the LBSP via the MPC (S 516 and S). 518), the LBSP transmits a service response message including the result information on the positioning to the terminal (S520), thereby providing the location positioning service once.

6 is a diagram illustrating a location service providing flowchart including a terminal authentication method for an MS-based location service according to an exemplary embodiment of the present invention.

Referring to FIG. 6, the terminal transmits a service request message to the LBSP in order to receive the location service (S 600). In this way, the LBSP transmits a location service request message to the location server via the MPC (S 602, S 604).

The positioning service request message includes terminal identification information which is unique information for identifying the terminal, and further includes call type information for identification of the positioning method and identification of the positioning service request message. The call type information corresponding to the positioning method is one of the MS-Assisted call identification information and the MS-Based call identification information. In FIG. 6, since the MS-Assisted method is assumed, the call type information is set to the MS-Based call identification information. This has been.

When the location server receives the location service request message, it simultaneously checks the terminal identification information included in the location service request message and the reception time information of the location service request message.

Referring to FIG. 6, after checking the terminal identification information and the reception time information of the location service request message from the location service request message, the location server includes the terminal identification information included in the location service request message in the terminal information table. If it is not detected because it does not exist (S 606), the terminal identification information, which is unique information for identifying the terminal, the call type information (Call Type) information for identifying the positioning method, location service request The terminal recent access time information, that is, the reception time information of the message and the time information last accessed by the terminal, is stored in the terminal information table (S606). However, if the terminal identification information included in the positioning service request message received in the positioning service request message receiving step is stored in the terminal information table, the received time information and terminal recent access time information on the terminal information table are retrieved. It is updated and stored (S606).

Thereafter, the positioning server waits and receives the positioning information message from the terminal which has requested the service (S608). Then, the positioning server checks the terminal identification information included in the positioning information message, and checks the received positioning information message. The terminal identification information is searched for in the terminal information table (S 610). If the search is performed, the terminal performs authentication (S 610) for the process of positioning the call. If the search is not performed, the positioning server pushes the terminal. The authentication is released, and the terminal authentication rejection is performed, which rejects the call processing progress for positioning the terminal.

Referring to FIG. 6, when the call type information included in the location service request message received in step S 604 is MS-Based call identification information, a TCP / IP location location call proceeds for positioning of the terminal (S). 612), a location calculation step in which the terminal directly calculates a location is performed, and afterwards, the location positioning server updates the terminal information table for updating terminal recent access time information corresponding to the terminal identification information stored in the terminal information table to the current time. Step S614 is performed.

Referring to FIG. 6, after the terminal information table update step (S 614), the location server sends a location service response message, which is a response to the location service request message, to the LBSP via the MPC (S 616 and S 618). The location positioning service is completed.

If after the terminal information table update step (S 614), that is, after one positioning service is completed, the terminal is to receive the positioning service again within the B-timeout, the positioning server is located from the reconnected terminal. Bypassing all the steps (S 600, S 602, S 604 and S 606) before receiving the positioning information message immediately after the step of receiving the positioning information message by accessing the terminal (S 620) The new location service can continue to be provided to the terminal.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

As described above, the present invention is applied to a technique for providing a positioning service to a terminal, and when providing a positioning service through an interworking method between a terminal and a positioning server of a TCP / IP method, the positioning server is connected to the terminal. By performing a separate terminal authentication procedure during interworking, it is very useful to solve the problem that the terminal can use the location server for malicious purposes not for the purpose of location service, thereby improving the security of the location service. Invention.

1 is a diagram showing an entire system including a location server for providing a terminal authentication function for a location service according to a preferred embodiment of the present invention;

2 is a diagram showing a location server for providing a terminal authentication function for a location service according to a preferred embodiment of the present invention;

3 is a flowchart illustrating a terminal authentication function provided by a positioning server in a positioning service providing flowchart provided to a terminal according to an exemplary embodiment of the present invention;

4 is a flowchart of a terminal authentication function provided by a positioning server in a positioning service providing flowchart provided to a terminal according to an exemplary embodiment of the present invention.

5 is a flowchart illustrating a location service providing flowchart including a terminal authentication method for an MS-Assisted location service according to a preferred embodiment of the present invention;

6 is a diagram illustrating a location service providing flowchart including a terminal authentication method for an MS-based location service according to an exemplary embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: terminal

130: location positioning server

140: Mobile Positioning Center (MPC)

150: Location Based Services Platform (LBSP)

Claims (22)

In the positioning server providing a terminal authentication function to provide a positioning service to the terminal, A location service message transmission / reception manager configured to receive a location service request message including terminal identification information and to transmit a location service response message that is a response to the received location service request message; Positioning information message transmission and reception management unit for transmitting and receiving a location information message with the terminal; A terminal information table manager which stores the terminal identification information included in the location service request message in a terminal information table; A terminal information table retrieval management unit for retrieving whether the terminal identification information included in the location service request message and the location location information message exists in the terminal information table; And A terminal authentication manager for determining whether to authenticate the terminal according to a search result in the terminal information table search manager Positioning server that provides a terminal authentication function for a positioning service comprising a. The method of claim 1, The location service request message, It includes the terminal identification information for identifying the terminal, and includes call type information (Call Type) information for the identification of the positioning method and the location service request message, the call type information is MS-Assisted A positioning server for providing a terminal authentication function for a positioning service, characterized in that the call identification information and the MS-Based call identification information. The method of claim 2, The location service message transmission and reception management unit, And a terminal authentication function for a location service, characterized in that when receiving the location service request message, a function of checking reception time information of the location service request message is performed. The method of claim 3, wherein When the terminal information table search manager cannot search the terminal identification information included in the location service request message received by the location service message transmission / reception manager from the terminal information table in the terminal information table manager, The terminal information table management unit, The terminal identification information, which is unique information for identifying the terminal, the call type information, which is information for identifying the positioning method, the reception time information of the location service request message, and time information last accessed by the terminal. A location positioning server providing a terminal authentication function for a location positioning service, which performs a function of storing a terminal last access time information in the terminal information table. The method of claim 3, wherein When the terminal information table search manager can search the terminal identification information included in the location service request message received by the location service message transmission / reception manager in the terminal information table in the terminal information table manager, The terminal information table management unit, The terminal authentication function for the location service, characterized in that for updating the received time information corresponding to the terminal identification information on the terminal information table and the terminal last access time information, which is the time information the terminal last connected. Providing positioning server. The method of claim 1, The terminal authentication management unit, When the terminal information table retrieval management unit can retrieve the terminal identification information included in the location positioning information message from the terminal information table in the terminal information table management unit, A positioning server for providing a terminal authentication function for a positioning service, characterized in that for authenticating the terminal and proceeding with positioning call processing for positioning of the terminal. The method according to claim 4 or 5, When the call type information included in the location service request message received by the location service message transmission and reception management unit is the MS-Assisted call identification information, The location positioning server, The location positioning service further comprises a location calculation management unit which performs a location call processing for location positioning with the terminal authenticated by the terminal authentication management unit and calculates the location of the terminal. Positioning server that provides a terminal authentication function for. The method of claim 7, wherein After the position calculation of the terminal is performed by the position calculation management unit, The terminal information table management unit, Location for providing a terminal authentication function for location services, characterized in that for performing the function of deleting the terminal identification information, the call type information, the reception time information and the terminal last access time information stored in the terminal information table. Positioning server. The method according to claim 4 or 5, After receiving the location service request message from the location service message transmission and reception management unit, The terminal information table management unit, If the location information message transmission and reception management unit does not receive the location information message within the A-timeout, the terminal identification information, the call type information, and the reception information previously stored in the terminal information table after the location service request message is received. To delete the time information and the terminal last access time information, The A-timeout, In order to maintain the terminal identification information, the call type information, the reception time information, and the terminal last access time information stored in the terminal information table according to the reception of the location service request message, the location positioning service request is maintained. Positioning server for providing a terminal authentication function for a positioning service, characterized in that the time information that must receive the location information message from the time point of receiving the message. delete The method of claim 9, After the position of the terminal is calculated by the position calculation manager and deletes the terminal identification information, the call type information, the reception time information and the terminal last access time information previously stored by the terminal information table manager. The location service message transmission and reception management unit, A positioning server for providing a terminal authentication function for a positioning service, characterized in that for transmitting the positioning service response message including the result information on the positioning of the terminal. The method according to claim 4 or 5, When the call type information included in the location service request message received by the location service message transmission and reception management unit is the MS-Based call identification information, Positioning server for providing a terminal authentication function for the location service, characterized in that the terminal authentication management unit performs the location call processing by authenticating the terminal so that the terminal can calculate the location directly. The method of claim 12, After the position calculation of the terminal authenticated by the terminal authentication manager is performed, The terminal information table management unit, And a terminal authentication function for a location service, characterized in that for updating the terminal last access time information corresponding to the terminal identification information stored in the terminal information table. The method of claim 13, After the terminal information table manager updates the terminal last access time information corresponding to the terminal identification information stored in the terminal information table, The location service message transmission and reception management unit, A positioning server for providing a terminal authentication function for a positioning service, characterized in that for transmitting the positioning service response message which is a response to the positioning service request message. The method of claim 13, After the terminal information table manager updates the terminal last access time information corresponding to the terminal identification information stored in the terminal information table, If the terminal is to receive the location service again within the B-timeout, If the location information message transmission and reception management unit receives another location information message, and the terminal identification information included in the another location information message exists in the terminal information table, the terminal authentication manager immediately authenticates the terminal. And, proceed with the location positioning call processing of the terminal, The B-timeout, In order to immediately authenticate the terminal and proceed with the location call processing of the terminal by simply receiving the another location information message without receiving a new location service request message from the terminal, the terminal last access time information is used. Positioning server for providing a terminal authentication function for a positioning service, characterized in that the time information that must receive the another positioning information message from the time of the update. delete The method of claim 15, The terminal information table management unit, Periodically checking the reception time information or the terminal recent access time information included in the terminal information table, and if the difference from the current time information is greater than or equal to the B-timeout, the terminal identification information, the call type information, and the A positioning server for providing a terminal authentication function for a positioning service, characterized in that the reception time information and the terminal last access time information is deleted. The method of claim 1, Method for the location server to authenticate the terminal, A positioning server for providing a terminal authentication function for a positioning service, characterized in that applied to the TCP / IP method of the interworking method between the positioning server and the terminal including a TCP / IP method and a DBM method. In the method for the location server to authenticate the terminal, (a) receiving a location service request message for receiving a location service request message including terminal identification information of the terminal; (b) generating a terminal information table for storing the terminal identification information in a terminal information table; (c) a terminal access step of receiving a location information message including the terminal identification information from a connected terminal; (d) a terminal information table retrieval step of retrieving whether the terminal identification information is present in the location information message in the terminal information table; And (e) a terminal authentication step of authenticating the connected terminal if the terminal identification information is found in step (d) Terminal authentication method for a location service, characterized in that it comprises a. The method of claim 19, In step (b), If the terminal identification information in step (a) does not exist after checking whether the terminal identification information exists in the terminal information table, The terminal identification information, call type information which is information for identifying a positioning method, reception time information of the location service request message, and terminal last access time information, which is time information last connected by the terminal, are stored in the terminal information table. Terminal authentication method for a location service, characterized in that for storing. The method of claim 19, In step (b), If the terminal identification information in step (a) exists after checking whether the terminal information table exists, The terminal authentication method for a location service, characterized in that for updating the other terminal information on the terminal information table. The method of claim 19, If the terminal identification information is not retrieved in the step (d), The terminal authentication method for a location service, characterized in that it further comprises a terminal authentication denial step of unauthenticating the terminal, releasing the connection, and denying the call processing progress for the location positioning of the terminal.

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