KR20050019702A - Method for reproduced mobile terminal detecting - Google Patents

Abstract

PURPOSE: A method for detecting an illegally copied mobile communication terminal is provided to confirm whether a terminal is illegally copied, by using an ESN and user agent information among information transmitted to a WAP gateway. CONSTITUTION: A mobile communication terminal executes an embedded WAP browser, and transmits various information to a WAP gateway(S10,S12). The WAP gateway extracts an ESN and user agent information from the transmitted information(S14), and decides whether the extracted ESN exists in a DB(S16,S18). If so, the WAP gateway decides whether stored user agent information is identical with the extracted user agent information(S24). If not, the WAP gateway stops an Internet connection, and informs a management server that the terminal is illegally copied(S26,S28).

Description

Detection method of counterfeit mobile communication terminal {METHOD FOR REPRODUCED MOBILE TERMINAL DETECTING}

The present invention relates to a method for detecting a counterfeit mobile communication terminal, and more particularly, to a method for detecting a counterfeit mobile communication terminal which enables to detect a mobile communication terminal that is used illegally in a mobile communication system.

In general, a mobile communication system includes a mobile communication terminal, a base station, a base station controller (BSC), a mobile switching center (MSC), a home location register (HLR), a visitor location register (VLR), an authentication center (Auc), It provides various information and voice services to mobile subscribers by accessing private switching network, internet network, etc.

In the above-described mobile communication system, to prevent illegal use such as using a mobile communication service by stealing another person's Mobile Identification Number (MIN) information, or using multiple mobile communication terminals with one MIN. To this end, when the mobile communication terminal makes a call or makes an incoming call, the mobile communication terminal transmits information such as MIN and Electronic Serial Number (ESN) to the MSC through the control channel to perform authentication.

However, the above-described method has a problem in that it is impossible to detect whether the corresponding mobile communication terminal is an illegally copied mobile communication terminal when both the MIN and the ESN are stolen.

Accordingly, conventionally, a rule base method is adopted to allow two mobile communication terminals having the same MIN to simultaneously perform an outgoing or incoming call, or to register or originate the same MIN as the MIN of the mobile communication terminal currently being provided with the service. Mobile communication that is being used illegally by checking whether the incoming procedure is attempted or if the registrations for the same MIN occur consecutively with a slight time difference, and the locations of the two MSCs where the registration occurred are far from each other. The terminal is detected.

However, in the above-described conventional counterfeit mobile communication terminal detection method, two mobile communication terminals having the same MIN do not simultaneously perform an outgoing or incoming call, but register for the same MIN as the MIN of the mobile communication terminal currently being provided with the service. If the originating or receiving procedure is not attempted and the registration for the same MIN occurs with a large time difference, even if the mobile terminal is illegally copied and used, it is detected that the mobile terminal is an illegally copied mobile terminal. There is a problem that can not be.

Disclosure of Invention The present invention has been made to solve the above-described problem, and illegal piracy is made to detect illegal duplication of a mobile communication terminal by using specific information used when a wireless Internet service is being increasingly used. It is an object of the present invention to provide a method for detecting a mobile communication terminal.

In accordance with an aspect of the present invention, there is provided a method for detecting a counterfeit mobile communication terminal, wherein the mobile communication terminal executes a WAP browser according to a WAP browser execution request, and includes ESN and user agent information as a WAP gateway. Transmitting the information; Determining, by the WAP gateway, whether the ESN exists by searching a database with the ESN received from the mobile communication terminal; If the ESN exists in the database, determining whether the user agent information associated with the searched ESN and the received user agent information match; If the two user agent information does not match, as a result of the determination, the mobile communication terminal stops connecting to the Internet and manages whether or not the mobile communication terminal is cloned and used by the management server. It is desirable to include a notification process.

Further, when the determined ESN does not exist in the database, the step of storing the ESN and the user agent information in the database to the database; And providing a wireless Internet service by the mobile communication terminal by connecting the mobile communication terminal to a web server.

In addition, when the two user agent information is identical as a result of the determination, it is preferable that the mobile communication terminal further comprises a step of providing a wireless Internet service by the mobile communication terminal.

In addition, the user agent information, wireless carrier, service type, terminal type, terminal manufacturer, terminal type by company, browser type, browser version, it is preferable to include the size information of the LCD.

Hereinafter, a method for detecting a counterfeit mobile communication terminal according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a road, a mobile communication terminal 10, a base station 20, a BSC 30, an MSC 40, a WAP (showing a configuration of a mobile communication system to which a method for detecting a counterfeit mobile communication terminal according to the present invention) is applied. Wireless Application Protocol) gateway 50, database 60 and the like.

In such a configuration, the mobile communication terminal 10 has a built-in WAP browser, and requests a wireless Internet service through the WAP browser.

The base station 20 wirelessly communicates with a mobile communication terminal 10 in a cell to provide a mobile communication service to a subscriber.

The BSC 30 matches with a plurality of base stations, and performs functions such as intercell handoff processing, call control, operation and maintenance control of the base station.

The MSC 40 is interworking between a mobile communication network and a fixed network such as a public switched telephone network (PSTN), an integrated service digital network (ISDN), or a mobile communication network and a public land mobile network (PLMN), an internet network, or a packet switched. It provides interworking function between 3rd party vendor networks such as Public Data Network.

The WAP gateway 50 supports a wireless Internet environment in which the mobile communication terminal 10 can receive a wireless Internet service by performing a conversion between the WAP protocol and the TCP / IP protocol, and transmits it from the mobile communication terminal 10. The received WAP protocol is interpreted and converted into a TCP / IP-based HTTP request and transmitted to the corresponding web server 70, and in response to the request of the mobile communication terminal 10, the HTTP protocol provided by the web server 70 is provided. The content is converted into a wireless session protocol (WSP) protocol and transmitted to the mobile communication terminal 10.

The database 60 stores the user agent information used when the mobile communication terminal which intends to use the wireless Internet service to execute the WAP browser and the ESN of each mobile communication terminal.

The user agent information described above includes information such as a wireless carrier, a service method, a terminal type, a terminal manufacturer, a terminal type for each company, a browser type, a browser version, and an LCD size.

2 is a flowchart for explaining a method for detecting a counterfeit mobile communication terminal according to an embodiment of the present invention.

First, in response to a subscriber's request to execute a WAP browser to provide a wireless Internet service, the mobile communication terminal 10 executes a built-in WAP browser and sends various information to the WAP gateway 50 to receive a wireless Internet service. It is to be transmitted (S10, S12).

Information transmitted from the mobile communication terminal 10 to the WAP gateway 50 in step S12 includes the ESN and user agent information of the mobile communication terminal.

The WAP gateway 50 having received various information from the mobile communication terminal 10 through the process S12 extracts ESN and user agent information from the information received from the mobile communication terminal 10 (S14). The database 60 is searched by the ESN extracted in S14 to determine whether the ESN extracted in the process S14 exists in the database 60 (S16 and S18).

If the ESN extracted in step S14 does not exist in the determination result of step S18, the mobile communication terminal having the ESN extracted in step S14 connects to the WAP gateway 50 for the first time. Since the attempt was made, the ESN and the user agent information extracted in the process S14 are stored in the database 60 by database, the internet connection is allowed, and the corresponding mobile communication terminal is used using the various information transmitted through the process S12. Access to the desired web server to receive the Internet service (S20, S22).

On the other hand, if the ESN extracted in step S14 exists in the determination result database of step S18, the user agent information stored in association with the retrieved ESN and the user agent information extracted in step S14. It is determined whether the (S24).

As a result of the determination of step S24, if the two user agent information is identical, the internet connection is allowed, and the mobile communication terminal 10 accesses the desired web server by using the various information received through the step S12. To be provided (S22).

On the other hand, if the two user agent information does not match as a result of the determination in step S24, the mobile terminal is determined to be an illegally copied mobile communication terminal being used by stealing the ESN of the legitimate mobile communication terminal. Suspends the connection of the mobile communication terminal that transmits various information through the Internet, and notifies the management server (not shown) that manages the duplication of the mobile communication terminal that the ESN of the mobile communication terminal is stolen and used illegally. (S26, S28).

In the process S28, when the WAP gateway 50 notifies the management server (not shown) whether the mobile communication terminal is illegally copied, the WAP gateway 50 may also transmit user agent information.

The management server (not shown) notified that the mobile communication terminal attempting to access the Internet from the WAP gateway 50 through the process S28 described above is an illegally copied mobile communication terminal based on the user agent information transmitted from the WAP gateway 50. What kind of mobile terminal has been changed?

The method for detecting an illegally copied mobile communication terminal of the present invention is not limited to the above-described embodiment, and may be variously modified and implemented within the range allowed by the technical idea of the present invention.

According to the method for detecting an illegally copied mobile terminal according to the present invention as described above, the illegality of the mobile terminal to receive the Internet service using the ESN and the user agent information among the information transmitted to the WAP gateway according to the execution of the WAP browser. You will be able to check whether or not you have replicated.

Accordingly, it is possible to detect whether the mobile communication terminal is illegally copied, which could not be detected by the conventional rule base method.

1 is a diagram showing the configuration of a mobile communication system to which a method for detecting a counterfeit mobile communication terminal according to the present invention is applied;

2 is a flowchart for explaining a method for detecting a counterfeit mobile communication terminal according to an embodiment of the present invention.

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

10. mobile communication terminal, 20. base station,

30.BSC, 40.MSC,

50. WAP gateway, 60. database,

70. Web Server

Claims (4)

Executing a WAP browser according to a WAP browser execution request in a mobile communication terminal, and transmitting information including ESN and user agent information to a WAP gateway; Determining, by the WAP gateway, whether the ESN exists by searching a database with the ESN received from the mobile communication terminal; If the ESN exists in the database, determining whether the user agent information associated with the searched ESN and the received user agent information match; If the two user agent information does not match, as a result of the determination, the mobile communication terminal stops connecting to the Internet and manages whether or not the mobile communication terminal is cloned and used by the management server. A method for detecting an illegally copied mobile communication terminal, including the step of notifying. The method of claim 1, wherein the determination result, if the received ESN does not exist in the database, Storing the ESN and user agent information in a database and storing the database in the database; And connecting the mobile communication terminal to a web server, wherein the mobile communication terminal provides a wireless Internet service. The method of claim 1, wherein when the determination result of the two user agent information is the same, And connecting the mobile communication terminal to a web server, wherein the mobile communication terminal provides a wireless Internet service. The method of claim 1, wherein the user agent information, A method for detecting an illegally copied mobile terminal, comprising a wireless carrier, a service method, a terminal type, a terminal manufacturer, a terminal type for each company, a browser type, a browser version, and an LCD size information.