KR100983652B1 - Method and system for controlling function of mobile devices - Google Patents

Abstract

A method and system for controlling the function of a terminal is provided. In a method of controlling a function of a terminal according to an embodiment of the present invention, when a state of a specific bit of unique identification information (Cell lD) of a cell in which a predetermined mobile communication terminal is located is changed, a location registration request message for the changed cell Receiving from the mobile communication terminal and comparing the unique identification information of the changed cell with the unique identification information of the cell of the region where the mobile communication terminal is located, and receiving a control message including control information according to the comparison result. And transmitting to the mobile terminal, wherein the mobile communication terminal extracts control information from the control message and controls a function according to the extracted control information.

Cell ID, Function Control, Security

Description

Method and system for controlling function of mobile devices

The present invention relates to a method and system for controlling a function of a terminal, and more particularly, to a method and system for controlling a function of mobile communication terminals located in a predetermined area by using a mobile communication network.

Today's mobile terminals provide a variety of services, including wireless call service, wireless Internet service, short message service and camera, video call, and multi-mode.

Among the service functions of the mobile communication terminal, for example, the camera function incorporates a camera function in the wireless terminal so that the subscriber captures an image through the terminal and stores the captured image information in the storage means.

In addition, the subscriber may display through the display means of the terminal, or transmit through the Internet or other network.

These camera functions have a positive aspect that subscribers can use the camera function through a mobile communication terminal without having a separate camera, and have a negative aspect of privacy invasion or security leak of a company.

That is, the subscriber may invade the privacy of another person due to an action such as photographing the image information of another person using a camera function of the terminal without seeking the understanding of another person. In addition, when the subscriber photographs the other person by using the camera of the terminal, the other person cannot recognize that the other person is being photographed, which is a social problem.

In addition, due to the development of informatization today, competition among companies is intensifying, so it is necessary to prevent the malicious use of the camera function of the terminal.

In other words, by using the camera function of the wireless terminal, it is necessary to prevent the act of taking out the technology of another company or another person and leaking it to the outside. In addition to the camera function of the terminal described above, there are cases where the functions of various terminals need to be limited as necessary.

For this reason, in order to control the function of the terminal, a device for separately generating and transmitting a signal for controlling the terminal has been used.

However, controlling the function of the terminal using the device as described above has the disadvantage that it cannot be easily used by the general public or the enterprise, and it is inconvenient to install the device where the function should be limited and to apply to a large area.

An object of the present invention is to control a function of a corresponding mobile communication terminal related to security through a message received by a mobile communication terminal for each cell through a method and a system for controlling a function of a terminal.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a method of controlling a function of a terminal according to an embodiment of the present invention is changed when a state of a specific bit of unique identification information (Cell lD) of a cell in which a predetermined mobile communication terminal is located is changed. Receiving a location registration request message for a cell from the mobile communication terminal and comparing the unique identification information of the changed cell with the unique identification information of the cell of the region where the mobile communication terminal is located, and controlling information according to the comparison result And transmitting a control message including the control message to the mobile terminal, wherein the mobile communication terminal extracts control information from the control message and controls a function according to the extracted control information.

In order to achieve the above object, a method of controlling a function of a terminal according to another embodiment of the present invention is that when a state of a specific bit of unique identification information (Cell lD) of a cell in which a predetermined mobile communication terminal is located is changed, Transmitting a location registration request message for the changed cell to a network element (NE), receiving a control message from the network element, and extracting control information from the control message, according to the extracted control information And controlling the function, wherein the network element extracts the unique identification information of the changed cell from the location registration request message, compares the unique identification information of the cell of the region where the mobile communication terminal is located, and controls the result according to the comparison result. Send a control message with information.

In order to achieve the above object, the method for controlling the function of the terminal according to an embodiment of the present invention, when the state of a specific bit of the unique identification information (Cell lD) of the cell in which the predetermined mobile communication terminal is located, Receiving a location registration request message for the changed cell from the mobile communication terminal, and comparing the unique identification information of the changed cell with the unique identification information of the cell of the region where the mobile communication terminal is located, and according to the comparison result. Blocking a call originating from the mobile communication terminal.

In order to achieve the above object, a system for controlling a function of a terminal according to an embodiment of the present invention includes a receiver for receiving a location registration request message from a predetermined mobile communication terminal, unique identification information of a cell changed from the location registration request message ( Extracting a Cell ID), comparing the cell ID with the cell-specific identification information of the region where the mobile communication terminal is located, and a transmitting unit transmitting a control message including control information to the mobile communication terminal according to the comparison result, The mobile communication terminal extracts control information from the control message and controls a function according to the extracted control information.

In order to achieve the above object, a system for controlling a function of a terminal according to an embodiment of the present invention includes a receiver for receiving a location registration request message from a predetermined mobile communication terminal, unique identification information of a cell changed from the location registration request message ( Extracting a Cell ID), comparing the cell ID with the cell-specific identification information of the region where the mobile communication terminal is located, and a blocking unit for blocking a call originating from the mobile communication terminal according to the comparison result.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims.

According to the method and system for controlling the function of the terminal of the present invention as described above has one or more of the following effects.

There is an advantage of easily controlling the function of the mobile communication terminal associated with security by using the existing mobile communication network without an additional device.

Hereinafter, with reference to the drawings of the configuration diagram or processing flow diagram for explaining a method and system for controlling the function of the terminal according to embodiments of the present invention will be described in detail for the implementation of the present invention.

At this time, it is to be understood that like reference numerals refer to like elements throughout the specification, and that each configuration of the flowchart illustrations and combinations of flowchart illustrations may be performed by computer program instructions.

Since these computer program instructions may be mounted on a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, those instructions executed through the processor of the computer or other programmable data processing equipment may be described in the flowchart configuration (s). It creates a means to perform the functions.

These computer program instructions may be stored in a computer usable or computer readable memory that can be directed to a computer or other programmable data processing equipment to implement functionality in a particular manner, and thus the computer usable or computer readable memory. It is also possible for the instructions stored in to produce an article of manufacture containing instruction means for performing the functions described in the flowchart configuration (s).

Computer program instructions It can also be mounted on a computer or other programmable data processing equipment, so a series of operating steps are performed on the computer or other programmable data processing equipment to create a computer-implemented process to perform the computer or other programmable data processing equipment. It is also possible for the instructions to provide steps for performing the functions described in the flowchart configuration (s).

In addition, each arrangement may represent a module, segment, or portion of code that includes one or more executable instructions for executing a specified logical function (s).

It should also be noted that in some alternative embodiments, the functions noted in the configurations may occur out of order.

For example, the two components shown in succession may in fact be performed substantially simultaneously or the components may sometimes be performed in the reverse order, depending on the function in question.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a configuration of a system for controlling a function of a terminal according to an embodiment of the present invention.

The system 100 for controlling a function of a terminal according to an embodiment of the present invention includes a core network 110, a radio access network (hereinafter referred to as a RAN) 120, and a mobile communication terminal 130. do.

First, the core network 110 is a mobile switching center (hereinafter referred to as MSC) 111, a mobile switching center gateway (Gateway MSC, GMSC) 112, a packet switching support node (Serving GPRS Support Node, Network element (NE) of at least one of the following: SGSN 113, a Gateway GPRS Support Node (GGSN) 114, and a Home Location Resister (hereinafter referred to as HLR) 115. .

The core network 110 having the above-described configuration performs a function of exchanging circuits, serving data packets, and accessing an external network, among which the MSC 111 and SGSN 113 provide a cell ID of a specific region. Includes DB to manage.

For reference, since there may be a plurality of cell IDs in a specific region requiring security, and each security policy may be different according to this region, MSC 111 and SGSN 113 may select a cell ID corresponding to a specific region. Manage by DB.

2 is a block diagram showing a configuration of an apparatus for controlling a function of a terminal according to the first embodiment of the present invention.

According to a first embodiment of the present invention, the configuration of an apparatus 200 for controlling a function of a terminal includes a receiver 210 for receiving a location registration request message from a mobile communication terminal 130 and a cell changed from a location registration request message. Control information is extracted according to a comparison result extracted by the comparison unit 220 and the comparison unit 220 which extracts the unique identification information (Cell ID) and compares the cell identification information of the region where the mobile communication terminal 130 is located. It includes a transmitter 230 for transmitting the control message to the mobile communication terminal 130, the mobile communication terminal 130 extracts the control information from the control message, and controls the function according to the extracted control information.

For reference, the apparatus 200 illustrated in FIG. 2 may be included in the MSC 111 and the SGSN 113.

When the mobile communication terminal 130 enters a specific region and transmits a location registration request message including a Cell ID, the receiver of the apparatus 200 shown in FIG. 2 included in the MSC 111 and the SGSN 113 ( The 210 receives a location registration request message including a Cell ID, the comparator 220 compares a DB managing a Cell ID of a specific region with a Cell ID included in the received message, and the transmitter 230 compares the cell ID. According to the result, a control message including control information is transmitted.

In this case, the control message including the control information is the MM (Mobility Management) information message defined in the 3GPP standard in the case of the MSC 111, GPRS Mobility Management (GMM) information defined in the 3GPP standard in the case of the SGSN 113 Message.

More specifically, LSA (Localized Service Area, LSA) parameters included in the MM information message and the GMM information message are utilized.

The present invention is to control a predetermined function of the mobile communication terminal 130 in a specific region by using the above-described LSA parameters (hereinafter referred to as control information), the use example of the control information is shown in the table shown in FIG. .

3 illustrates an example of using control information according to an embodiment of the present invention, in which a predetermined function of the mobile communication terminal 130 is controlled according to each control bit defined in the LSA in the MM / GMM message information.

For example, if the 23rd bit 301 is '1', the camera of the mobile communication terminal 130 cannot be used (the function is turned off), and if the 22nd bit 302 is '1', video call transmission is impossible. Do.

In addition, when the 21st bit 303 is '1', data connection connection using the mobile communication terminal 130 as a terminal is impossible, and when the 20th bit 304 is '1', video call reception is impossible.

In addition, the above-described plurality of control information may be combined, and as shown in FIG. 2, video call origination / incoming control may be added to the eighteenth bit 305 to simultaneously control one or more functions.

On the other hand, when the mobile communication terminal 130 does not support the function of controlling the predetermined function of the mobile communication terminal 130 according to the control information transmitted by the transmitter 230 as described above, the MSC 111 described above. Alternatively, the SGSN 113 may block a call (for example, an image call and a data call) originating from the mobile communication terminal 130.

4 is a block diagram showing a configuration of an apparatus for controlling a function of a terminal according to a second embodiment of the present invention.

According to a second embodiment of the present invention, a configuration of an apparatus 200 for controlling a function of a terminal includes a receiver 210 receiving a location registration request message from a mobile communication terminal 130, and a cell changed from a location registration request message. The mobile terminal according to the comparison result extracted by the comparison unit 220 and the comparison unit 220 extracts unique identification information (Cell ID) and compares the cell identification information of the region where the mobile communication terminal 130 is located. It may include a blocker 240 for blocking the call originating from 130. For reference, the apparatus 200 illustrated in FIG. 4 may be included in the MSC 111 or the SGSN 113, but is not limited thereto.

When the mobile communication terminal 130 enters a specific region and transmits a location registration request message including a Cell ID, the receiver of the apparatus 200 illustrated in FIG. 4 included in the MSC 111 or the SGSN 113 ( 210 receives a location registration request message including a cell ID, the comparison unit 220 compares the cell ID included in the received message with the DB for managing a cell ID of a specific region, the blocking unit 240 is According to the comparison result, the call originating from the mobile communication terminal 130 may be blocked. In this case, it may be understood that the blocking unit 240 blocks outgoing and incoming calls of the mobile communication terminal 130 to perform call termination.

In more detail, when power is applied to the mobile communication terminal 130, the mobile communication terminal 130 may search for an appropriate cell and then function in an idle mode in the corresponding cell. In this case, the mobile communication terminal 130 may perform a call processing procedure according to a radio resource control (RRC) protocol to the RAN 120. In an embodiment of the present invention, the call processing procedure according to the RRC protocol is an example of a case where the mobile communication terminal 130 attempts to connect with the RAN 120, and a user makes a call using the mobile communication terminal 130. By attempting, the mobile communication terminal 130 transmits a response message in response to uplink data transmission or when a call connection request (Paging) is received from the RAN 120. It can be performed when calling and receiving.

The apparatus 200 shown in FIG. 4 may block a call originating from the mobile communication terminal 130 after the call processing procedure according to the RRC protocol as described above is performed. same. At this time, the process of blocking the call to be described later, the operation performed by the above-described receiving unit 210 and the comparison unit 220 will be described by taking an example of the case performed in advance.

First, referring to a call blocking process when a call originates from the mobile communication terminal 130, the mobile communication terminal 130 performs a call processing procedure according to the RAN 120 and the RRC protocol, and then the mobile communication terminal 130 The RAN 120 requests the CM (Connection Management) service, and the RAN 120 transmits the requested CM service request to the MSC 111 or the SGSN 113. Thereafter, when the mobile communication terminal 130 originates a call, the blocking unit 240 of the apparatus 200 shown in FIG. 4 included in the MSC 111 or the SGSN 113 compares the comparison unit 220. Based on the result, it is determined whether the call originated from the mobile communication terminal 130 is blocked, that is, whether or not to perform a call termination process. As a result of the determination, when the mobile communication terminal 130 is located in a cell blocking the call, the mobile communication Block outgoing call from the terminal 130. In this case, the blocking unit 240 may determine the type of call to be blocked according to the comparison result of the comparison unit 220. For example, as a result of the comparison of the comparison unit 220, if only the video call is blocked for the cell in which the mobile communication terminal 130 is located and the data call is not blocked, the blocking unit 240 cancels the call only for the video call. Can be performed.

Meanwhile, referring to a call blocking process when a call is received by the mobile communication terminal 130, when the call connection request is received from the RAN 120, the call processing procedure according to the RAN 120 and the RRC protocol is performed. Then, if a call is received from the MSC 111 or SGSN 113, and the mobile communication terminal 130 originates a call for the received call, a diagram included in the MSC 111 or SGSN 113 is included. The blocking unit 240 of the apparatus 200 illustrated in FIG. 4 may determine whether to block, ie, call termination, a call sent from the mobile communication terminal 130 according to the comparison result of the comparator 220. When the mobile communication terminal 130 is located in a cell that blocks the call, the call is blocked from the mobile communication terminal 130. In this case, the blocking unit 240 may determine the type of call to be blocked according to the comparison result of the comparison unit 220. For example, as a result of the comparison of the comparison unit 220, if only the video call is blocked for the cell in which the mobile communication terminal 130 is located and the data call is not blocked, the blocking unit 240 cancels the call only for the video call. Can be performed.

As described above, the mobile communication terminal 130 is determined by the mobile communication terminal 130 according to the control information transmitted from the MSC 111 or the SGSN 113 through the apparatus 200 illustrated in FIGS. 2 and 4. It is possible to block the call originating from the mobile communication terminal 130 for controlling the function or not. In addition, in the embodiment of the present invention, the device 200 of FIG. 2 and FIG. 4 are described separately, but this is merely an example for helping understanding of the present invention, and the device 200 of FIGS. The hardware may be integrated.

Meanwhile, the RAN 120 of the system 100 shown in FIG. 1 is a base station (Node-B, hereinafter referred to as Node-B) 121 and a base station controller (Radio Network Controller, hereinafter referred to as RNC) 122. It includes.

The RNC 122 is connected to the core network 110 and controls a plurality of lower Node-Bs 121, and is a unit of a System Information Block (hereinafter referred to as SIB) to the plurality of Node-Bs 121. Provides system information generated by.

5 is a diagram illustrating a block type of system information according to an embodiment of the present invention.

Scheduling block and system information block types including a master information block (MIB) that controls all system information blocks and a schedule for providing system information blocks are illustrated.

Cell ID parameters used in the present invention are included in system information block (SIB) types # 3 and # 4.

The cell ID is described in a Radio Link Addition Information item included in an Active Set Update Msg, which is a control message transmitted through a control channel when a terminal in a connected state is handed over.

When the terminal is in the idle state (Idle State), the cell ID is provided through SIB # 3, and in the connected state, the terminal provides the cell ID through the control message of the SIB # 4 and the control channel.

6 is a diagram illustrating a configuration of a Cell ID according to an embodiment of the present invention.

In the 3GPP standard, the cell ID is presented in 28 bits, and the parameter of the cell ID includes information on the RNC 122 ID and information on the subcell ID.

In the cell ID, the RNC 122 ID is identified using 12 bits 510 of bits 16 to 27, and the subcell ID uses 16 bits 520 of bits 0 to 15. In the present invention, a predetermined bit string is assigned to the sub-cell ID to indicate whether or not the specific area is secured.

In more detail, subdivided items such as the core network (CN) 511, the RNC 512, whether or not a specific local security is set 521, the Node-B 522, the sector 523, the allocated frequency 524, etc. It allocates a bit string by classifying as.

For reference, in the present invention, the bit string of whether or not the specific local security setting 521 is allocated to 3 bits, but various sizes can be allocated according to an embodiment of the person skilled in the art, and thus the present invention is not limited to the embodiment of the present invention.

For example, according to the size of the bit string indicating whether the security is set in a specific region, a value indicating whether the security is set in a specific region may be represented by '1' and '0' or 'Y' and 'N'.

In the present invention, the location registration of the cell ID by transmitting a location registration request message when a specific bit of the cell ID, that is, a bit indicating whether a specific area security is set 521 is changed by changing the location of the mobile communication terminal 130. As a way to do this.

The Node-B 121 is connected to the RNC 122 to perform wireless communication with the mobile communication terminals 130 included in a cell unit having a predetermined range, and broadcast the received system information (same message to multiple users). At the same time).

Meanwhile, the mobile communication terminal 130 is a mobile communication device supporting 3G (3G) WCDMA, and includes a cellular phone, a notebook equipped with a wireless modem, a personal digital assistant (PDA), and a multimode terminal. And a mobile communication terminal.

The above-described mobile communication terminal 130 performs wireless communication with the Node-B 121 and receives the above-described system information through a broadcast channel and a control channel.

For reference, the multi-mode terminal described above is a terminal capable of operating in a plurality of systems by using one terminal. For example, a dual band / dual mode (DBDM) terminal may be used in a plurality of frequency bands. It is a terminal that can all operate (dual band) and can operate in a plurality of connection modes (dual mode).

Examples of dual mode terminals include WCDMA-CDMA dual terminals, WCDMA-WLAN dual terminals, and WCDMA-Wibro dual terminals.

These mobile communication terminals are terminals for performing a role as a stepping bridge between the current generation and the next generation, or for performing their own functions in systems having different characteristics.

In addition, the system notifies the mobile communication terminal through a message so as to perform a function for changing to another system in a specific region, or performs a function of changing the mode by determining the change from the mobile communication terminal itself to another system. .

7 is a flowchart illustrating a process of controlling a function of a terminal according to the first embodiment of the present invention.

In FIG. 7, the mobile communication terminal 130 requests a location registration due to any one of a switch section change and power on / off, and after the location registration, moves to a specific area for controlling a predetermined function of the terminal for security reasons. A process of controlling a predetermined function of the terminal will be described.

For convenience of description, description will be made with reference to the components of the system 100 shown in FIG. 1.

First, the mobile communication terminal 130 transmits a location registration request message to the RAN 120 to update the location information (S601).

At this time, the location registration request message uses a LU (Location Update) message.

After S601, the RAN 120 receives a location registration request message LU from the mobile communication terminal 130, and then transmits a location registration request message LU to the MSC 111 / SGSN 113 (S602). .

After S602, the MSC 111 / SGSN 113 receives the location registration request message LU from the RAN 120 and transmits a location registration request message including its ID, that is, the MSC ID, to the HLR 115. (S603).

After S603, the HLR 115 registers the corresponding location and transmits a location registration response message including the subscriber profile to the MSC 111 / SGSN 113 (S604).

After S604, the MSC 111 / SGSN 113 stores the subscriber's profile in the visitor location register (VLR) DB and transmits a location registration response message (Location Update) to the mobile communication terminal 130 (S605).

After the location has been registered, the user who owns the mobile communication terminal 130 has moved the location to a specific location, i.e., a specific area (e.g., a military restricted area) that controls certain functions of the terminal for security reasons, and the MSC ( 111) / SGSN 113, it is assumed that there exists a DB managing Cell ID of a specific place that controls a predetermined function of the mobile communication terminal 130.

For reference, the mobile communication terminal 130 continuously receives a broadcast channel for simultaneously transmitting the same message to multiple users from the mobile communication wireless network in order to determine its location in the idle state.

At this time, the received broadcast channel parameter includes a Cell ID, and the Cell ID includes a bit string indicating whether or not security is set in a corresponding region.

Therefore, the mobile communication terminal 130 demodulates the received Cell ID and refers to the bit string indicating whether the security is set in the corresponding area, and requests the location registration to the RAN 120 when the bit string is changed.

At this time, the value of the bit string indicating whether or not the security setting of the corresponding area may be represented by '1' and '0' or 'Y' and 'N' according to the allocated size.

For reference, when the value of the LAI-RAI is changed, the location registration request mesh may be transmitted.

Here, the local area indicator (LAI) indicates a paging zone in the MSC 111 position, and transmits the paging to the mobile communication terminal 130 for the CS call through a broadcasting channel. It is a regional unit.

In addition, a route area indicator (RAI) indicates a PS call paging area in the SGSN 113 position, and is a regional unit transmitted through a broadcasting channel when paging is transmitted to the mobile communication terminal 130 for the PS call.

For example, assuming that a user of a mobile communication terminal 130 whose location is registered through S601 to S605 moves to a military restricted area later, the mobile communication terminal 130 receives a broadcasting channel from a mobile communication wireless network at any time. It will refer to a bit string indicating whether the cell ID has a specific local security setting.

After that, when the user moves to a military unit, the bit string indicating whether or not the cell ID is secured is not secured (for example, '0' or 'N'). For example, '1' or 'Y'), the mobile communication terminal 130 requests a location registration to the mobile communication wireless network with reference to the above-described bit string.

Hereinafter, after S605, a process of controlling the function of the mobile communication terminal according to the change of the bit string indicating whether the aforementioned cell ID is secured will be described.

First, the mobile communication terminal 130 transmits a location registration request message to the RAN 120 when a value of a specific bit of the cell ID, that is, a bit string indicating whether a specific area security is set or a value of the LAI-RAI is changed. (S606).

At this time, the location registration request message uses a LU (Location Update) message.

After S606, the RAN 120 receives the location registration request message LU from the mobile communication terminal 130 and sends the location registration request message LU including the cell ID of the corresponding Node-B 121 to the MSC 111. / SGSN 113 is sent (S607).

After S607, the MSC 111 / SGSN 113 receives the location registration request message LU including the Cell ID from the RAN 120 and detects the Cell ID from the received location registration request message LU (S608). ).

After S608, the MSC 111 / SGSN 113 includes a DB that manages a predetermined function of the terminal, i.e., the cell ID of the military restricted zone, for security reasons, and includes the cell ID and the military restricted zone detected in S608. Cell IDs are compared (S609).

As a result of the comparison, when the Cell ID detected in S608 and the Cell ID of the military restricted area coincide, the MSC 111 / SGSN 113 determines whether the MM / The GMM message is transmitted to the mobile communication terminal 130 (S610).

In this case, the LSA included in the MM / GMM message includes camera control information, video call origination control information, and video call forwarding control information due to military confidential data and equipment security, and the control information includes a predetermined number indicating prohibition of use. It is represented by a bit (eg '1' or 'N').

After S610, the mobile communication terminal 130 receives an MM / GMM message including control information for controlling a predetermined function of the mobile communication terminal 130 from the MSC 111 / SGSN 113, and transmits to the MM / GMM message. With reference to the control information of the included LSA, the camera, the video call out and the video call forwarding function are disabled (S611).

If, after S611, the user of the mobile communication terminal 130 moves out of the specific area (military restricted area) and moves to another location, the location is registered again through the steps S606 to S609, and at this time, previously restricted (not available). Any functions that have been used are changed to their original state.

For reference, in the current 3GPP standard, the MM (Mobility Management) information transmitted from the MSC 111 of the circuit-switched system and the GMM delivered from the SGSN 113 of the packet-switched system in a signaling message between the mobile communication terminal and the core network. (GPRS Mobility Management) information is provided, and the message delivery service method using the SGSN 113 can be easily configured as the message delivery service method using the MSC 111.

That is, when the MSC 111 also matches the conditions set inside the MSC through the message MM information similarly to the SGSN 113, it is possible to transfer the MM information message to the mobile communication terminal, as shown in FIG. In the embodiment of the present invention, the MSC 111 and the SGSN 113 are simultaneously marked.

8 and 9 are flowcharts illustrating a process of controlling a function of a terminal according to a second embodiment of the present invention. In this case, FIG. 8 may be understood as a call blocking process when the mobile communication terminal 130 is called, and FIG. 9 may be understood as a call blocking process when the mobile communication terminal 130 is incoming. 8 and 9, the call originating from the mobile communication terminal 130 is an image call, for example. However, the call originating may be variously changed.

In FIG. 8 and FIG. 9, the mobile communication terminal 130 requests a location registration due to any one of a switch section change and power on / off, and after the location registration, controls a specific function of the terminal for security reasons. The process of controlling the predetermined function of the terminal will be described. 8 and 9 differ from the above-described FIG. 7, the mobile communication terminal 130 controls the function of the mobile communication terminal 130 according to the control information transmitted from the MSC 111 or the SGSN 113. For example, a case in which the MSC 111 or SGSN 113 blocks a call originating from the mobile communication terminal 130 will be described. For example, the MSC 111 or SGSN 113 moves to the MSC 111 or SGSN 113. A case in which a DB for managing Cell ID of a specific place that controls a predetermined function of the communication terminal 130 exists will be described with an example.

First, as shown in FIG. 8, when the mobile communication terminal 130 originates, the mobile communication terminal 130 and the RAN 120 perform a call processing procedure according to the RRC protocol (S701).

After S701, the mobile communication terminal 130 transmits a CM service request message to the RAN 120 (S702), and the RAN 120 transmits the transmitted CM service request message to the MSC 111 or SGSN 113. (S703).

After S703, when a video call is sent from the mobile communication terminal 130 (S704), the comparator 220 of the apparatus 200 shown in FIG. 4 included in the MSC 111 or the SGSN 113 is connected to the mobile communication terminal (S704). The cell ID detected from the location registration request message LU received from 130 is compared with the cell ID of the DB (S705).

After S705, when the mobile communication terminal 130 is located in an area where the call should be blocked, the blocking unit 240 of the apparatus 200 illustrated in FIG. 4 included in the MSC 111 or the SGSN 113 may be a mobile communication terminal. The video call from 130 is blocked (S706). That is, the blocking unit 240 performs the video call termination process. In addition, the blocking unit 240 may selectively block the call originating from the mobile communication terminal 130 according to the cell ID of the DB. For example, when only the video call is blocked at the position of the mobile communication terminal 130 according to the comparison result, the blocking unit 240 blocks only the video call sent from the mobile communication terminal 130 and does not block the data call. You can't.

If, after S705, as a result of the comparison of the comparison unit 220, if the mobile communication terminal 130 is located in the area where the call does not need to block the normal video call service is performed (S707).

Then, after S706, if the mobile communication terminal 130 moves out of the specific area to another area, through the process of S701 to S705, the transmission of the blocked video call is released to change to the original state.

Meanwhile, as shown in FIG. 9, when the mobile communication terminal 130 receives a call, the mobile communication terminal 130 receives a call connection request (S801), and then the mobile communication terminal 130 determines that the RAN 120 receives the call connection request. The call processing procedure according to the RRC protocol is performed (S802).

After S802, when the mobile communication terminal 130 receives a video call from the MSC 111 or SGSN 113 (S803), the mobile communication terminal 130 transmits the video call accordingly (S804).

After S804, the comparator 220 of the apparatus 200 illustrated in FIG. 4 included in the MSC 111 or the SGSN 113 may receive a message from the location registration request message LU previously received from the mobile communication terminal 130. The detected Cell ID is compared with the Cell ID of the DB (S805).

After S805, when the mobile communication terminal 130 is located in an area where the call should be blocked, the blocking unit 240 of the apparatus 200 illustrated in FIG. 4 included in the MSC 111 or the SGSN 113 may perform the mobile communication. The video call from the terminal 130 is blocked (S806). That is, the blocking unit 240 performs the video call termination process. In addition, the blocking unit 240 may selectively block a call originating from the mobile communication terminal 130 according to the cell ID of the DB. For example, when only the video call is blocked at the position of the mobile communication terminal 130 according to the comparison result, the blocking unit 240 blocks only the video call sent from the mobile communication terminal 130 and does not block the data call. You can't.

If, after S805, as a result of the comparison of the comparison unit 220, if the mobile communication terminal 130 is located in the area where the call does not need to block the normal video call service (S807).

Then, after S806, if the mobile communication terminal 130 moves out of the specific area and moves to another area, transmission of the blocked video call is released and changed to the original state through the processes of S801 to S805.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. You will understand that. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1 is a diagram illustrating a configuration of a system for controlling a function of a terminal according to an embodiment of the present invention.

2 is a diagram illustrating a configuration of an apparatus for controlling a function of a terminal according to the first embodiment of the present invention.

3 is a diagram illustrating an application example of control information according to an embodiment of the present invention.

4 is a diagram illustrating a configuration of an apparatus for controlling a function of a terminal according to a second embodiment of the present invention.

5 is a diagram illustrating a block type of system information according to an embodiment of the present invention.

6 is a diagram illustrating a configuration of a Cell ID according to an embodiment of the present invention.

7 is a flowchart illustrating a process of controlling a function of a terminal according to the first embodiment of the present invention.

8 and 9 are flowcharts illustrating a process of controlling a function of a terminal according to a second embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

110: core network

111: MSC

112: GMSC

113: SGSN

114: GGSN

115: HLR

120: RAN

121: Node-B

122: RNC

130: mobile communication terminal

Claims (13)

A receiving unit for receiving a location registration request message from a mobile communication terminal; And If the mobile communication terminal is determined to exist in a cell to which a function restriction is applied by analyzing the location registration request message, and the mobile communication terminal does not correspond to the function restriction exclusion list for the cell, the mobile communication And a transmitter for transmitting a control message for limiting the function of the terminal to the mobile communication terminal. A mobile communication terminal for limiting functions in accordance with a control message received from a network element, When the unique identification information (Cell ID) of the cell received from the network element is changed, a location registration request message including the unique identification information of the changed cell is transmitted to the network element, and the control message received from the network element Mobile terminal to limit the function accordingly. A receiving unit for receiving a location registration request message from a mobile communication terminal; And If the mobile communication terminal is determined to exist in a cell to which outgoing call blocking is applied by analyzing the location registration request message, and the mobile communication terminal does not correspond to the outgoing call blocking exclusion target list for the cell, Terminal function control system including a blocker for blocking a call originating from the communication terminal. delete delete delete delete delete delete delete delete delete delete

Images