KR100470689B1 - Method for Furnishing User Information of Illegal Mobile Equipment - Google Patents

Abstract

The present invention relates to a method for providing illegal terminal user information, and more particularly, to a method for transmitting the information to a customer management system in an EIR system for storing and managing illegal terminal user information received through a MAP protocol message.

According to the present invention, by detecting illegal terminal use, the EIR transmits illegal terminal user information to the customer management system, thereby ensuring the instantaneous information and reducing the operator's work and efficiently using the centralized customer management system. It can be managed by the effect.

In addition, since information on this is reported to the customer management system at the same time as the use of the illegal terminal, the person in charge immediately calls the illegal terminal user to notify that the terminal to be used is an illegal terminal, and takes appropriate measures such as the terminal acquisition status and illegality notice when using the terminal. The use of illegal terminals can be prevented in advance.

Description

Method for providing illegal terminal user information {Method for Furnishing User Information of Illegal Mobile Equipment}

The present invention relates to a method for providing illegal terminal user information, and more particularly, to a method for transmitting the information to a customer management system in an EIR system for storing and managing illegal terminal user information received through a MAP protocol message.

Today's network usage environment requires not only providing reliable services to users regardless of wired or wireless and voice or data communication, but also providing security services between communicating parties.

In response to such a request, the mobile communication network environment confirms that the user accessing the communication system using the AUC (Authentication Center) is a legitimate user, and uses the Equipment Identity Register (EIR). ) Checks whether the terminal is an illegal terminal and prohibits the use of the illegal terminal.

The EIR system classifies a mobile station (ME) unique International Mobile Station Equipment Identity (IMEI) into several lists for each service class and manages status information and related information. The list is basically a white list, a black list, and a gray list. It consists of.

The white list consists of IMEI authorized to use the service in the network, the black list consists of IMEI that is not authorized to use the service in the network, or illegal IMEI such as theft or duplication. It consists of IMEI that needs management.

Only the mobile station (MS) having an IMEI belonging to the black list is denied use of the service, and the mobile station (MS) having an IMEI belonging to the white or gray list is available for general service. However, the mobile station MS having IMEI belonging to the Gray list is tracked by the network.

As shown in FIG. 1, the EIR receives a MAP_CHECK_IMEI message, which is a query message about a service level of a mobile terminal, from a Mobile Switching Center (MSC) / Serving GPRS Support Node (SGSN) and manages the internal terminal in an internal database. By responding to the service class information for the mobile subscriber is restricted from being provided with a mobile communication service with an illegal terminal.

However, since the MSC / SGSN queries the EIR system only to include IMEI information to confirm the validity of the mobile terminal, even if the EIR confirms that the mobile terminal belongs to the blacklist, it has no choice but to store meaningless information such as the final access time. Information on the user using the illegal terminal has an unknown problem.

In order to solve the above problems, the MSC / SGSN includes information about the mobile terminal user in a MAP protocol message queried by the EIR to determine whether the terminal is illegal, thereby allowing the EIR to store and manage information on the illegal terminal user. Method is used.

That is, the EIR receives the MAP protocol query message including the IMSI and MSISDN information from the exchange (MSC / SGSN) together with the IMEI, and transmits the corresponding IMEI service class information (WhiteList, BlackList, GrayList). The IMSI and MSISDN received together are stored and managed in the database.

International Mobile Station Identity (IMSI) is mobile subscriber identification information including Mobile Country Code (MCC), Mobile Network Code (MCC), and Mobile Subscriber Identification Number (MSIN). MSISDN is Country Code (CC) and National Destination (DCC). ISDN identification information used by a mobile subscriber including a number and a subscriber number (SN).

The MAP_CHECK_IMEI message used by the MSC / SGSN to query the service level of the mobile station by the EIR is shown in Table 1 below.

Parameter name Request Indication Response Confirm Invoke id M M (=) M (=) M (=) IMEI C C (=) C C (=) IMSI C C (=) MSISDN C C (=) Equipment status C C (=) User error C C (=) Provider error O

Here, M is a required parameter, C is a selection parameter, O is a service operator selection parameter, and (=) indicates that the parameter has the same value.

The structure of the database managed by the EIR is shown in Table 2 below.

Record name meaning IMEI ME identification information IMSI ME Subscriber Identity ME TYPE ME shape information ME PHYSICAL STATUS ME physical status display ME SERVICE GRADE ME service class indication ME REGISTATION TIME ME initial registration time OTHER INFO Other information (name, address, contact, etc.) ACCESS IMSI [1..N] NODE_INFORMATION [1..N] ACCESS_TIME [1..N] [1..N] ME user IMSI information [1..N] network node information [1..N] access time information ACCESS MSISDN [1..N] NODE_INFORMATION [1..N] ACCESS_TIME [1..N] [1..N] ME user MSISDN information [1..N] network node information [1..N] access time information

Hereinafter, a conventional illegal terminal user information providing method will be described in detail with reference to FIGS. 2 and 3.

2 is a diagram illustrating a modified MAP protocol message flow, and FIG. 3 is a flowchart for explaining an operation of providing illegal terminal user information by an EIR.

MSC / SGSN composes MAP_CHECK_IMEI query message when querying IMEI service level of mobile terminal, and adds IMSI and MSISDN information of mobile subscriber (hereinafter referred to as 'mobile terminal user') to use service through corresponding mobile terminal. A MAP_CHECK_IMEI [IMEI, IMSI, MSISDN] query message is transmitted to the EIR (S10).

Therefore, the EIR checks whether the MAP_CHECK_IMEI [IMEI, IMSI, MSISDN] query message and the message contents transmitted from the MSC / SGSN are in error, and if there is no error, checks the service level of the corresponding IMEI by searching the database of Table 2 above ( S20).

Then, the checked service level is stored in the Equipment status parameter of the MAP_CHECK_IMEI response message, and the MAP_CHECK_IMEI [Equipment status] response message is transmitted to the MSC / SGSN (S30).

At this time, if the service grade check result through the database search is the service grade of the IMEI is classified as a black list, that is, if the mobile terminal is confirmed as a stolen, lost or duplicated mobile terminal (S40), the EIR is MSC / SGSN The information on the illegal terminal user (ACCESS IMSI related information and ACCESS MSISDN related information) is updated in the corresponding record of the database of Table 2 with reference to the information contained in the MAP_CHECK_IMEI [IMEI, IMSI, MSISDN] query message received from the S50. ), The alarm information is activated by transmitting a BLACK_LIST_ACCESS_NOTIFY signal to the Operations and Maintenance System (OMS) / MMI (Man Machine Interface) (S60).

Therefore, the operator can find out who (Access IMSI), when (Access time), how (Node Type, ISDN Number) using the stolen or lost illegal terminal (IMEI) through the search of the database.

On the other hand, if there is an error in the MAP_CHECK_IMEI [IMEI, IMSI, MSISDN] query message or message content transmitted from the MSC / SGSN, the MAP_CHECK_IMEI [User Error] message is transmitted to the MSC / SGSN.

As mentioned above, the EIR stores information about illegal terminal users sent from the MSC / SGSN and sends an alarm message to the OMS. However, even within one mobile communication service network, the EIR system may be several systems within the entire mobile communication network due to the limitation of system capacity.

This means that the EIR system can be distributed in various areas of the network (e.g., 1 meal for Seoul telephone office, 1 meal for Busan telephone office, etc.), and alerts to illegal terminal user information when EIR and OMS are distributed throughout the region. B) Reports are limited to local national affairs. Therefore, local government operators should report illegal terminal user information periodically or immediately upon occurrence to the organization that needs the information through telephone, fax or e-mail, including a customer management system installed in one area of the network. do.

In this case, the operator's work is added and reported to the management organization after the actual illegal terminal use time, there is a problem that the value of the information is lowered.

The present invention has been made to solve the problems described above, the purpose of which is to detect the illegal terminal use EIR transmits illegal terminal user information to the customer management system, to ensure the immediateness of information and reduce the work of operators and At the same time, the information is centrally and efficiently managed by the customer management system.

A feature of the present invention for achieving the object as described above comprises the steps of: generating an illegal terminal usage alarm message using illegal terminal user information including illegal terminal user identification information and ISDN information received from a mobile communication exchange; Transmitting the generated illegal terminal use alarm message to a customer management system; Generating an illegal terminal use alarm file storing illegal terminal user information when the illegal terminal use alarm message transmission fails; Monitoring the message transmission and reception with the customer management system; As a result of the monitoring, when the message transmission and reception is possible to provide an illegal terminal user information providing method comprising the step of transmitting the generated illegal terminal use alarm file.

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Here, the illegal terminal use file transmission may include transmitting an illegal terminal use alarm report message including EIR identification information to a customer management system; Receiving, from the customer management system, an illegal terminal usage alarm report preparation message including account information used for file transmission, a password of an account, and directory information for transmitting a file; Transmitting an illegal terminal use alarm file to a customer management system using the received file transfer information; And when the illegal terminal use alarm file transfer is completed, transmitting an illegal terminal use alarm report completion message to a customer management system, and receiving an illegal terminal use alarm report response message from the customer management system. .

The illegal terminal use alarm message or illegal terminal use alarm file includes mobile terminal identification information, mobile terminal type information, physical state information of the mobile terminal, service grade information of the mobile terminal, mobile terminal registration time information, and mobile terminal user. Identification information, mobile terminal user ISDN information, node information and mobile terminal use time information is stored.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention provides a user service billing system (CSBS) for illegal terminal user information including IMSI and MSISDN, which are subscriber information using an illegal terminal included in a MAP_CHECK_IMEI message which is queried to the EIR system in order to determine whether the terminal is illegal in MSC / SGSN. Is about how to transfer.

According to the present invention, the EIR configures information on an illegal terminal user into an illegal terminal use alarm message (BLACK_LIST_ACCESS_ALARM) (hereinafter referred to as an 'alarm message') as shown in FIG. 4 or an illegal terminal use alarm file (hereinafter referred to as an 'alarm file'). To the CSBS).

The meanings of the information fields of the alarm message and the alarm file are shown in the table below.

IMEI IMEI information of the device ME TYPE Type of terminal ME PHYSICAL STATUS Physical state of the terminal (normal / damage / failure, etc.) ME SERVICE GRADE Service class of the corresponding terminal (White / Black / Gray) ME REGISTRATION TIME The time when the terminal was initially registered in the EIR ACCESS IMSI IMSI information of subscriber using illegal terminal ACCESS MSISDN MSISDN number information of subscriber using illegal terminal NODE INFORMATION MSC or SGSN information using illegal terminals ACCESS TIME Illegal terminal use time

The illegal terminal user information providing operation of the EIR will now be described in detail with reference to FIG. 5.

The EIR generates an alarm message (BLACK_LIST_ACCESS_ALARM) using the illegal terminal user information received from the MSC / SGSN and transmits it to the CSBS (S501).

If there is no response from the CSBS within a predetermined time, the alarm message is retransmitted (S502, S503).

If retransmission of the alarm message fails, an immediate report attempt by the alarm message is stopped, and an alarm file storing illegal terminal user information is generated (S504).

Thereafter, by monitoring the state of the CSBS, that is, whether or not it is possible to send and receive messages with the CSBS (S505), if the transmission and reception of the message is transmitted to the CSBS EIR identification number to identify itself, and the file transfer information, that is, from the CSBS An account to be used for file transfer, a password of the account, and directory information in which the file is to be stored are received (S506 and S507).

The alarm file is transmitted to the CSBS using the file transmission information (S408).

Through the above process, the EIR immediately reports the illegal terminal user information to the CSBS through an alarm message, and reports the illegal terminal user information to the CSBS through an alarm file when the report fails due to the alarm message or periodically.

The operation of transmitting the illegal terminal user information to the CSBS by the EIR will be described in detail with reference to FIGS. 6 and 7 illustrating a message flow between the EIR and the CSBS.

FIG. 6 is a diagram illustrating an operation in which an EIR transmits illegal terminal user information to an CSBS through an alarm message, and the EIR is MAP_CHECK_IMEI [IMEI, IMSI, MSISDN added with IMSI and MSISDN information as shown in FIG. 6. When the query message is received from the MSC / SGSN (S601), the service level of the corresponding IMEI is checked through a search of an internal database, and the MAP_CHECK_IMEI [which stores the checked service level in the Equipment status parameter of the MAP_CHECK_IMEI response message. Equipment status] response to the MSC / SGSN (S602).

At this time, if the service grade check result of searching the database is classified as a black list of the IMEI, the EIR is information contained in the MAP_CHECK_IMEI [IMEI, IMSI, MSISDN] query message received from the MSC / SGSN, that is, an illegal terminal user. The information is loaded into the alarm message (BLACK_LIST_ACCESS_ALARM) and transmitted to the CSBS (S603), and a response message (BLACK_LIST_ACCESS_ALARM ACK) is received from the CSBS that received the alarm message (BLACK_LIST_ACCESS_ALARM) (S604).

On the other hand, the EIR transmitting the alarm message drives a transmission timer, and if a response message is not received from the CSBS within a predetermined time, initializes the transmission timer and retransmits the failed transmission alarm message.

In addition, if there is no response from the CSBS even after performing the alarm message retransmission operation as many times as set by the operator (for example, when N = 1), the EIR immediately responds to the alarm message. The report is stopped, the illegal terminal user information contained in the alarm message is stored in the alarm file, and the status of the CSBS is monitored.

When the CSBS is monitored and a message can be transmitted and received with the CSBS, the alarm file is transmitted to the CSBS.

An alarm file transmission operation of the EIR will be described in detail with reference to FIG. 7.

First, the EIR transmits an alarm report message (BLACK_LIST_ACCESS_ALARM_REPORT) including the EIR identification number to identify itself to the CSBS (S701).

In operation S702, an alarm report preparation message (BLACK_LIST_ACCESS_ALARM_REPORT_READY) including alarm file transmission information, that is, an account to be used for file transmission, an account password, and directory information to store a file is received (S702).

Then, the EIR transmits the alarm file storing the illegal terminal user information to the CSBS using the received alarm file transmission information. In this case, FTP or TFTP, which is a TCP / IP application protocol, FTAM, or another file transfer protocol, which is an OSI application protocol, may be generally used.

Thereafter, the EIR transmitting the alarm file using the file transfer protocol transmits an alarm report completion message (BLACK_LIST_ACCESS_ALARM_REPORT_DONE) to CSBS when the file transfer is completed (S703).

Then, by receiving the alarm report response message (BLACK_LIST_ACCESS_ALARM_REPORT) transmitted by the CSBS receiving the alarm report complete message (S704), the illegal terminal user information providing operation through the alarm file is terminated.

This file transfer procedure can be performed periodically even under normal conditions, not between the EIR and CSBS, and can be performed immediately by overlapping report and file transfer.

In addition, the embodiments according to the present invention are not limited to the above-described embodiments, and various alternatives, modifications, and changes can be made within the scope apparent to those skilled in the art.

In particular, MAP_CHECK_IMEI may be implemented to be received and processed by HLR, AUC, or other database system other than EIR, in which case, illegal terminal user information is provided by a database system replacing EIR.

As described above, the present invention transmits illegal terminal user information to CSBS by detecting illegal terminal use, thereby ensuring immediateness of information and reducing operator's work and efficiently managing information by centralized CSBS. It can work.

In addition, since information on this is reported to the CSBS at the same time as the use of the illegal terminal, the person in charge immediately calls the illegal terminal user to notify that the terminal being used is an illegal terminal, and takes appropriate measures such as the terminal acquisition status and illegality notification when using the illegal terminal. The use of the terminal can be prevented in advance.

1 is a diagram illustrating a conventional MAP protocol message flow.

2 illustrates a modified MAP protocol message flow.

3 is a flowchart illustrating a conventional illegal terminal user information providing operation.

4 is a diagram illustrating the structure of an illegal terminal use alarm message according to the present invention;

5 is a flowchart for explaining an operation of providing illegal terminal user information according to the present invention;

FIG. 6 is a flowchart illustrating a process of transmitting an illegal terminal use alarm message in FIG. 5.

FIG. 7 is a flowchart illustrating a process of transmitting an illegal terminal use alarm file in FIG. 5.

Claims (4)

Generating an illegal terminal usage alarm message using illegal terminal user information including illegal terminal user identification information and ISDN information received from the mobile communication exchange; Transmitting the generated illegal terminal use alarm message to a customer management system; Generating an illegal terminal use alarm file storing illegal terminal user information when the illegal terminal use alarm message transmission fails; Monitoring the message transmission and reception with the customer management system; And transmitting the generated illegal terminal use alarm file when the transmission and reception of the message is possible as a result of the monitoring. delete The method of claim 1, The illegal terminal use file transmission may include transmitting an illegal terminal use alarm report message including EIR identification information to a customer management system; Receiving, from the customer management system, an illegal terminal usage alarm report preparation message including account information used for file transmission, a password of an account, and directory information for transmitting a file; Transmitting an illegal terminal use alarm file to a customer management system using the received file transfer information; And when the illegal terminal use alarm file transmission is completed, transmitting an illegal terminal use alarm report completion message to a customer management system, and receiving an illegal terminal use alarm report response message from the customer management system. Illegal terminal user information providing method. The method of claim 1, The illegal terminal use alarm message or illegal terminal use alarm file includes mobile terminal identification information, mobile terminal type information, physical state information of the mobile terminal, service grade information of the mobile terminal, mobile terminal registration time information, and mobile terminal user identification information. And illegal mobile terminal user ISDN information, node information, and mobile terminal usage time information.