KR20050011782A - A method and a apparatus of locking communication status with sms for mobile phone - Google Patents

Abstract

PURPOSE: An apparatus and method for locking a mobile terminal using a short message are provided to prevent the use of a mobile communication service and reduce a load of a system by preventing a function of a radio part of a mobile terminal. CONSTITUTION: An MSC(Mobile Switching Center) of a GSM(Global System for Mobile communication) type mobile communication system registers a location of a mobile terminal and receives various operation information included in SIM(Subscriber Identity Module) information from the mobile terminal(S100). The MSC receives the SIM information, analyzes the information, and then checks whether the SIM information is SIM information of a mobile terminal which had been subscribed and registered for its host station(S110). If the SIM information has been received from a mobile terminal which had not been registered, the MSC determines whether a PIN(Personal Identification Number) code allowing a roaming service is inputted(S120). When the PIN code is inputted, the MSC searches a corresponding database and checks whether the PIN code has been classified as a limitation target SIM information for which a mobile communication service is not allowed(S130). If the PIN code corresponds to the mobile communication service limitation target, the MSC creates lock information for not allowing the mobile communication service as a short message, processes it to be recorded/stored in a designated 6F3C region of a SIM card, and then transmits it to the corresponding mobile terminal(S140). The MSC proceeds with communication according to the mobile communication service(S150).

Description

Mobile device locking device and method using short message {A METHOD AND A APPARATUS OF LOCKING COMMUNICATION STATUS WITH SMS FOR MOBILE PHONE}

The present invention remotely controls the operation of a mobile terminal with a short message. In particular, the mobile terminal uses mobile communication since the lock information is recorded in a designated SIM area of a GSM mobile terminal using the short message. A mobile terminal locking device and method using a short message for remote control.

Mobile terminal (MS: MOBILE PHONE) is free to move within the service area (SERVICE AREA) provided by the registered mobile communication system and communicate with the other party who is wirelessly connected at any time and anywhere. It is a convenient communication equipment.

The mobile communication system is a channel resource for transmitting and receiving a communication signal, using a radio frequency resource, the radio frequency resource is a limited natural resource, in order to transmit or receive one communication signal radio frequency of a constant bandwidth It should occupy exclusive resources and use them as communication channels.

As described above, various ways of using the limited radio frequency resources as a communication channel by occupying as many mobile terminals as possible are being developed and used. For example, currently used in the United States and various countries in Asia including Korea Code division multiple access (CDMA) and GLOBAL SYSTEM FOR MOBILE COMMUNICATION are widely used.

The code division multiple access (CDMA) scheme is a scheme in which a plurality of channels divided into codes are simultaneously occupied and used by the same frequency band, and the GSM scheme is a type of time division multiple access (TDMA) scheme. The same frequency is occupied with a time difference, so it is shared.

The GSM method includes an electronic serial number (ESN: ELECTRONIC SERIAL NUMBER), an assigned unique telephone number (TEL NO) and a payment account number of a mobile terminal registered and registered with a mobile communication service provider. Almost all the information necessary for the operation of the team is recorded on the SIM (SUBSCRIBER IDENTITY MODULE).

The SIM is detachable from the GS terminal, and if the SIM is attached to the SIM terminal in the neighboring station, the SIM is attached to its own SIM. It is a way to communicate using it as it is.

That is, in the SM system, since all the information necessary for the operation of the portable terminal and personal information are recorded in the SIM, the SIM is carried out to a neighboring country, and the GS system portable terminal is rented and attached. While using all the information as it is possible to receive a mobile communication service by the roaming service.

The SIM is small, easy to move, and lost, there is a problem that other people use it without permission.

Therefore, it was necessary to develop a method for preventing unauthorized use of such a shim or remotely restricting the use of mobile communication services by creditors and arrears that do not pay communication costs in terms of mobile operators.

Hereinafter, a shim operation method of a portable terminal according to the prior art will be described with reference to the accompanying drawings.

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

Referring to FIG. 1, a general mobile communication system includes: a mobile terminal (MS) 10 for freely moving in a service area of a registered mobile communication system and communicating by wirelessly connecting with the other party anytime and anywhere; A base station (BS) 20 for wirelessly connecting to the mobile terminal 10 to transmit and receive communication signals and to form a mobile communication service area; A mobile switching station (MSC: MOBILE SWITCHING CENTER) 30 which connects to the base station 20, analyzes and switches the call connection request signal, and sets a communication path and controls and monitors the overall operation of the mobile communication system. Is done.

Since the mobile terminal 10 is configured to operate in a GSM method, the mobile terminal 10 includes an electronic serial number (ESN), an assigned unique telephone number, a subscriber name, a payment account number, and the like. Record and store various parameter information necessary for communication operation in the SIM, and the SIM is a structure that is easily removable, and the GS-type portable terminal 10 should have the shim in order to communicate. .

The GS base station 20 wirelessly connected to the SM-type portable terminal 10 having a core as described above reads and registers various operation information and parameter information from the SIM of the portable terminal 20. It checks whether the terminal 10, and allocates a radio channel to transmit and receive the communication signal in the case of a registered mobile terminal.

The base station 20 transmits a signal received from the SMS mobile terminal 10 to the mobile switching center 30 through the allocated wireless channel, and the mobile switching center 30 analyzes the input signal and switches the corresponding switching ( SWITCHING) monitors and controls the operation of the entire mobile communication system while establishing a communication path.

The SM type mobile terminal 10 communicates freely in the service area formed by the plurality of base stations 20 managed by the mobile switching center 30 by the confirmation of the SIM information. The service area formed by the 30 may be, for example, one country area.

That is, the GSM mobile terminal 10 may move to a service area or another country area formed by another adjacent mobile switching center 30, and in this case, roaming provided by the adjacent mobile switching center 30. The service communicates.

In such a case, detailed information of the subscriber is required for transmission and reception and charging, and the subscriber information is confirmed from the information stored in the SIM.

Hereinafter, referring to FIG. 2, a method of operating a SIM core according to the related art will be described.

The base station 20 of the mobile communication system, which recognizes the communication connection signal from the GS portable terminal 10, checks the SIM information of the connected portable terminal and determines whether it is registered SIM information. Confirming the first step (S10); A second step (S20) of determining whether to input a PIN code for allowing access in case of SIM information which is not determined in the step; A third step (S30) of determining whether a lock state (SIM LOCK) in which communication is not established is established when the access permission pincode is input or registered SIM information; A fourth step (S40) of determining whether a lock release code is input if the lock state is determined based on the determination; When the lock state release code is input or the lock state is not set in the above step, a fifth step (S50) of performing mobile communication and ending is performed.

Hereinafter, the conventional method of the above-described configuration, will be described in detail the operation method of the SM-type portable terminal shim.

When the GSM type mobile terminal 10 wirelessly connects to the base station 20 and receives a mobile communication service, the base station 20 reads SIM information from the mobile terminal 10. In operation S10, it is determined whether the system is registered and registered in the system.

If the SIM (SIM) information is not registered in the country in the determination (S10), it is determined whether a PIN code for receiving a roaming service is input (S20).

If the SIM information of the mobile terminal 10 is registered in the determination (S10), or if a pin code for receiving a roaming service is input in the determination (S20), the mobile terminal 10 and the base station 20 ) Is in a state capable of transmitting and receiving communication signals by wireless connection.

The portable terminal 10 determines whether it is in a state capable of immediate communication by itself or in a locked state to prevent unauthorized communication by another person (S30), and in the case of the locked state in the determination (S30) It is determined whether a password or a code for releasing the lock state is input (S40).

When communicating with the mobile terminal 10, since the communication cost is relatively expensive, it is a locked state that prevents other people from using it for unauthorized communication, and releases the locked state by inputting the corresponding password or code.

As described above, the mobile communication is performed using the SM type portable terminal 10 in which the locked state is released (S50).

However, when the mobile terminal 10 according to the prior art having the above-described configuration loses the portable terminal 10 or separates the SIM while moving to the neighboring station, the other person can Even if an unauthorized communication is performed by using a mobile terminal or a shim, there is a problem that cannot be prevented until the loss report is received by the mobile communication service provider.

In particular, in terms of mobile communication service providers, in the case of credit delinquents who are overdue or have poor credit without paying a long-term communication service fee, there is a problem in that communication cannot be blocked immediately.

The present invention is to block the unauthorized use of others, or to sanction the long-term delinquent or bad credit of communication charges, in particular, when the SIM of the mobile terminal of the SMS type, the transmission of a short message to the mobile terminal recorded in the ID field of the review Therefore, the object of the present invention is to provide a mobile terminal locking device and method using a short message.

The present invention has been made to achieve the above object, the high-frequency unit for wirelessly connecting to the mobile communication base station and transmitting and receiving a communication signal; A short detection unit connected to the high frequency unit and separately detecting a short message received from a base station; A lock detection unit for separating and outputting lock information by analyzing a short message applied from the short detection unit; A sim card for recording and storing lock information applied from the lock detection unit in a designated area; The control unit monitors a designated area of the SIM card to detect lock information, and controls the high frequency unit to block wireless signal transmission and reception.

In addition, the present invention devised to achieve the above object, the location receiving process for registering the current location of the mobile terminal by inputting and analyzing the location registration information transmitted from the mobile terminal by the mobile switching center; The mobile switching center of the above process reads and analyzes the shim information of the location-registered mobile terminal, and if it is not registered, roaming process of determining whether a pin code for roaming service is input; A lock step of transmitting lock information to be recorded in a designated area of the shim as a short message to the corresponding mobile terminal when the shim information is analyzed and judged to be a restricted subject that cannot provide a mobile communication service; In the above process, if the object is not limited, the mobile communication is performed.

In addition, the present invention has been made in order to achieve the above object, the location registration process for registering their location in the mobile communication system and the transmission and reception of the deliberation operation information by the mobile terminal; A lock determination process of searching for an allocated area of the shim and proceeding to an end when lock information is recorded and detected; In the above process, when the lock information recorded and stored from the assigned area of the shim is not detected, the mobile communication is performed.

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

2 is a flowchart illustrating a shim operation method of a gsm mobile terminal according to the prior art;

3 is a functional block diagram of a mobile terminal lock using a short message of the present invention,

4 is a state diagram of a 6F3C core region frame of the mobile terminal of the present invention;

5 is a flowchart of a method for locking a portable terminal of a mobile switching center using a short message of the present invention;

6 is a flowchart illustrating a method for locking a portable terminal using a short message of the present invention.

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

100: portable terminal 110: high frequency unit 120: short detection unit

130: lock detection unit 140: sim card 150: control unit

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a locking device and a method of a portable terminal using a short message will be described with reference to the accompanying drawings.

3 is a functional block diagram of a mobile terminal locking device using a short message of the present invention, and FIG. 4 is a state diagram of a 6F3C core region frame of a gsm mobile terminal of the present invention, and FIG. FIG. 6 is a flowchart illustrating a method of locking a mobile terminal using a short message of the present invention. FIG. 6 is a flowchart of a method of locking a portable terminal using a short message of the present invention.

Referring to FIG. 3, according to the present invention, a mobile terminal 100 locking device using a short message includes: a high frequency unit 110 for wirelessly connecting to a mobile communication base station (BS) and transmitting and receiving a communication signal; A short detection unit 120 connected to the high frequency unit 110 and separately detecting a short message service (SMS) received from a base station (BS); A lock detection unit 130 for analyzing the short message applied from the short detection unit 120 and separately outputting lock information; The SIM card records and stores lock information applied from the lock detection unit 130 in a designated area, and records and stores the detected and input lock information in a designated allotted 6F3C area of 176 bytes ( 140); When the lock information is detected by monitoring the designated area of the SIM card 140, the radio frequency unit is blocked by controlling the high frequency unit, and the designated 6 F3C area of the SIM card 140 is searched. The control unit 150 checks whether the lock information is recorded and stored, and controls the high frequency unit 110 to block transmission and reception of a radio signal when the lock information stored in the confirmation is detected.

Hereinafter, according to the present invention having the configuration described above, a portable terminal locking device using a short message will be described in detail.

The high frequency unit 110 of the GS type mobile terminal 100 transmits and receives a corresponding communication signal by wirelessly connecting to a base station BS of a GSM type mobile communication system, and receives a signal transmitted from the base station. The short detector 120 is applied to the short detector 120, and the short detector 120 separately detects the short message SMS by analyzing the received signal.

The short message separated and detected by the short detector 120 is output to the lock detector 130, and the lock detector 130 analyzes the contents of the input short message, and separately detects only predetermined lock information.

The predetermined lock information separately detected by the lock detection unit 130 is recorded and stored in a 6 F3C area of the SIM CARD 140, and the controller 150 stores the SIM card 140. Monitor the 6F3C area of the device to verify that the lock information is recorded and detected.

When the lock information is detected from the 6F3C region of the SIM card 140, the controller 150 controls the high frequency unit 110 to block transmission and reception of a radio signal.

4 is a 6F3C area frame configuration for recording and storing the lock information of the SIM card 140. 1 byte (BYTE) is allocated to indicate whether the lock information is recorded or not, and 175 bytes Records and stores the lock information that is assigned and entered.

That is, according to the present invention having the above configuration, when the mobile switching center (MSC) of the mobile communication system intends to restrict the use of the mobile communication service of the specific mobile terminal 100, the lock information is output as a short message (SMS), The lock information of the short message is transmitted to the corresponding mobile terminal 100 through the base station BS.

The portable terminal 100 receives the lock information received by the short message at the high frequency unit 110, and is applied to the short detector 120 to detect the short message separately, and is applied to the lock detector 130 to lock the information. The lock information detected separately and separated as described above is recorded and stored in the designated allocated 6F3C area of the SIM card 140.

If it is detected that lock information is recorded and stored from the designated 6F3C area of the SIM card 140, the controller 150 controls the high frequency unit 110 to block transmission and reception of a radio signal. The SM portable terminal 100 cannot use the mobile communication service.

In addition, the SIM card 140 of the SM type mobile terminal 100 may be detached and attached to another GS portable terminal 100, or may be used for moving to a service area formed by a mobile switching center in another country. Do not use the service.

To cancel the use of the above mobile communication service restriction, the lock information stored in the 6F3C area of the SIM card must be deleted or changed at the service center or the mobile switching center.

Hereinafter, referring to FIG. 5, a method of locking a mobile terminal by a mobile switching center in a mobile terminal locking method using a short message of the present invention will be described.

The MSC of the GSM mobile communication system inputs and analyzes the location registration information transmitted from the mobile terminal 100 to register the current location of the mobile terminal 100 to receive the location registration process (S100). )and,

The mobile switching center (MSC) of the location receiving process (S100) reads and analyzes the SIM information of the location-registered mobile terminal 100, and if the SIM information is not registered, a PIN code for allowing roaming service. ) Reads and analyzes SIM information transmitted from the mobile terminal 100 in which the current location is registered, and records and registers SIM in the corresponding area of the MSC. Determining whether it is the same as the information (S110); If the SIM information of the mobile terminal 100 is not the same as that registered in the MSC in step S110, a PIN code for allowing roaming service is received from the mobile terminal 100. Roaming process consisting of a process of determining whether the input (S120),

In the roaming process, when the SIM information is analyzed and determined to be a limited object that cannot provide a mobile communication service, the mobile terminal 100 transmits the lock information to be recorded in the designated area of the SIM as a short message. Analyzing the SIM (SIM) information of the mobile terminal 100 to determine whether the mobile communication service is a restricted object (S130); If it is determined in step S130 that the mobile terminal 100 is subject to restriction, the SMS type mobile switching center (MSC) stores the predetermined lock information in the 6 F 3 o'clock area of the SIM (SMS). The lock process consisting of a process (S140) to transmit to,

If the mobile communication service is not subject to restriction in the above process, the mobile communication is performed using the mobile terminal 100 (S150).

Hereinafter, the method of locking the mobile terminal 100 by the mobile switching center (MSC) of the mobile terminal locking method using the short message according to the present invention having the above-described configuration.

Since the MSC of the GSM mobile communication system receives the location registration information from the GS mobile terminal 100 through each base station BS, the location of each mobile terminal 100 is determined. Register (S100), and receives a variety of operation information included in the SIM (SIM) information from the location-registered portable terminal 100 as described above.

In the SIM information, an electronic serial number (ESN), an assigned unique telephone number, a subscriber's name, a payment account number, and final parameter information for operating a mobile communication system of a SM type mobile terminal are stored in an updated state. And output.

The MSC inputs and analyzes the sim information as described above, and determines whether or not the sim information of the mobile terminal subscribed and registered with the home country (S110), and the sim information not registered in the determination (S110). In the case of S, it is determined whether a 4 or 8 bit PIN (PERSONAL IDENTIFICATION NUMBER) code CODE capable of receiving a roaming service is input (S120).

When the PIN code is not input in the determination S120, the mobile terminal 100 cannot use a mobile communication service, and when the pin code is input, the mobile switching center is connected to the database. Search for and determine whether it is the same as that classified as restricted SIM (SIM) information that can not be provided with the mobile communication service (S130).

The mobile communication service restriction object is, for example, the SIM information of the corresponding mobile terminal 100 that has not paid a long-term communication fee, is a bad creditor, or has received a loss report.

In the determination (S130), if the mobile communication service is subject to restriction, the GSM mobile switching center prepares the lock information in a short message so that the mobile communication service cannot be received, and the short message is the SIM card 140. The mobile switching station that transmits the lock information to the mobile terminal 100, which is processed to be recorded and stored in the assigned 6F3C area of the mobile terminal 100, and transmits the lock information to the mobile terminal subject to the restricted use of the mobile communication service. Communicate with 100 by the mobile communication service.

The lock information is transmitted to the mobile terminal 100, recorded and stored in the SIM card 140, and the mobile terminal 100 determines that the mobile terminal 100 does not use the mobile communication service. Therefore, in the MSC, Provides a mobile communication service to the connected mobile terminal 100, the lock information setting is completed when the mobile terminal 100 is turned on (ON / OFF), so no longer use the mobile communication service I can't.

Hereinafter, with reference to the accompanying Figure 6, by the present invention, a locking method of the mobile terminal 100 using a short message (SMS) will be described.

Registering its own location in the SM type mobile communication system and transmitting / receiving operation information of the SIM by the SM type mobile terminal, and wirelessly connecting the base station BS of the mobile communication system by the mobile terminal 100. Registering the current location with the MSC (S200); The mobile terminal 100 of step S200 transmits various operation information of the SIM to the BS that is wirelessly connected, and transmits new operation information received from the BS to the corresponding SIM of the SIM. Location registration process consisting of the process of recording and storing in the area (S210),

A lock determination process (S220) for searching the assigned 6F3C region of the SIM and proceeding to the end when the lock information is recorded, stored, and detected;

If the lock information is not recorded and detected from the allocated area of the SIM SIM in step S220, the mobile communication service is used in step S230.

Hereinafter, according to the present invention having the above-described configuration, the locking method of the mobile terminal 100 using the short message SMS will be described in detail.

The GSM mobile terminal 100 registers a location with a mobile switching center of a GSM mobile communication system through a currently connected base station BS when operating power is applied (S200), and a SIM (SIM). Or transmits various operation information recorded and stored in the SIM card 140 to the base station BS, receives the updated operation information from the base station, and updates and stores the updated operation information in the SIM or SIM card 140 ( S210).

As described above, the control unit 150 of the mobile terminal 100 that has completed location registration and transmission and reception of necessary operation information in the system searches for a 6F3C area, which is a designated area of the SIM or SIM card 140, and stores the lock information. Check and detect whether (S220).

In the process (S220), when the control unit 150 detects the lock information recorded from the designated 6F3C region of the SIM or SIM card 140, the high frequency unit 110 is controlled to transmit and receive radio signals. If the lock information is not detected from the designated 6F3C region of the SIM or SIM card 140 in the process (S220), the SMS mobile communication service is normally used (S230).

When the lock information is recorded as described above, the SIM or SIM card 140 of the portable terminal 100 receives the short message SMS for releasing the locked state through the base station BS and thus erases the lock information. Or release the lock, or clear the lock or release the lock by the maintenance personnel.

According to the present invention, the lock information received by the short message is designated and stored in a SIM area of the SM type mobile terminal, and thus the mobile terminal itself blocks the function of the wireless unit. There is an industrial use effect that disables services and reduces the load on the system.

In addition, there is a convenient effect of remotely limiting the long-term payment of the mobile communication fee or the unauthorized use of the portable terminal and the lost portable terminal by others.

Claims (9)

A high frequency unit which wirelessly connects to a mobile communication base station and transmits and receives a communication signal, A short detection unit connected to the high frequency unit and separately detecting a short message received from a base station; A lock detection unit for separating and outputting lock information by analyzing a short message applied from the short detection unit; A sim card for recording and storing lock information applied from the lock detection unit in a designated area; And a control unit configured to block radio signal transmission and reception by controlling the high frequency unit when the lock information is detected by monitoring a designated area of the SIM card. The method of claim 1, wherein the sim card, And when the lock information is detected and applied by the lock detection unit, recording and storing the input lock information in a 6 F3 region of 176 bytes. The method of claim 1, wherein the control unit, Searching for the 6 F3 o'clock area of the SIM card to determine whether lock information is recorded and stored, and if the lock information is detected in the confirmation, control the high frequency unit to block transmission and reception of a radio signal. Mobile device lock using short message. A location receiving process of inputting and analyzing location registration information transmitted from a mobile terminal by a mobile switching center to register a current location of the mobile terminal; The mobile switching center of the above process reads and analyzes the shim information of the location-registered mobile terminal, and if it is not registered, the roaming process of determining whether a pin code for roaming service is input; In the above process, if it is determined that the SIM information is restricted and cannot be provided with a mobile communication service, the lock process transmits the lock information to be recorded in the designated area of the SIM by a short message to the corresponding mobile terminal; If it is not the subject of limitation in the above process, the mobile terminal locking method using a short message, characterized in that the process consisting of a mobile communication. The method of claim 4, wherein the roaming process, Reading and analyzing shim information transmitted from the mobile terminal registered by the mobile switching center to determine whether it is the same as the registered shim information; And if the SIM information of the mobile terminal is not registered in the mobile switching center, determining whether a pin code for roaming service is input from the mobile terminal. The method of claim 4, wherein the locking process, Analyzing the SIM information of the mobile terminal provided with the mobile communication service to determine whether the mobile communication service is restricted or not; And determining that the mobile terminal is to be restricted in the process, and transmitting the predetermined lock information as a short message to be recorded and stored in the 6 F3 o'clock area of the sim. A location registration process of registering a location of the mobile device with a mobile terminal and transmitting and receiving deliberation operation information; A lock determination process of searching the allocated area of the shim and proceeding to the end when the lock information is recorded and detected; If the lock information is not recorded and detected from the assigned area of the shim in the process, the mobile terminal using a short message characterized in that it comprises a process of using a mobile communication service. The method of claim 7, wherein the location registration process, Registering a current location with a mobile switching center by wirelessly connecting to a base station of a mobile communication system by a mobile terminal, The mobile terminal of the process comprises the step of transmitting a variety of operation information of the shim to a wirelessly connected base station and recording and storing the new operation information received from the base station in the corresponding area of the shim. The method of claim 7, wherein And a designated area of the shim is designated as a 6 F3 o'clock area.