JP2013162408A - Portable terminal communication device, terminal communication method, terminal communication system, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to implement a countermeasure considering both unauthorized release and regular release, in the case of erroneous input of release data which unlocks a lock function for identifying a subscriber.SOLUTION: Every time inequality between release data input for unlocking a lock function for regulating a connectable communication network on the basis of a subscriber identification module and regular release data registered in advance is detected, counting means 101 counts the number of times of the inequality as the number of times of erroneous input. Release means 102 releases the lock, when the regular release data is input before the number of times of erroneous input reaches an allowable erroneous input times setting value. When the number of times of erroneous input reaches the allowable erroneous input times setting value, change means 103 generates new release data in a state of keeping the lock of the lock function to replace the registered regular release data with the new release data. Notification means 104 notifies a management device on the communication carrier side that the release data should be updated.

Description

  The present invention relates to a portable terminal communication device, a terminal communication method, a terminal communication system, and a program having a lock function that restricts a connectable communication network according to a subscriber identification module.

  In general, a communication terminal manufacturer that manufactures a mobile terminal communication device such as a mobile phone cannot use a USIM (Universal Subscriber Identity Module) of another communication carrier for the mobile terminal communication device. In order to prevent this, a USIM lock that restricts a connectable communication network is applied and delivered to a communication carrier. As described above, the mobile terminal communication device can be provided at a low price by adding a lock function for restricting the mobile terminal communication device of the subscriber to connect only to the communication network of the provider side. If the USIM lock is illegally released by the operation of a third party, the above fee system is destroyed.

  As a preventive measure against such unauthorized release of USIM lock, conventionally, for example, when a mobile communication system receives a lock release request from a mobile terminal communication device that is not permitted to release USIM lock, the terminal By registering the identification information, the lock release request will be refused from the next time, or the identification information of the mobile terminal communication device that made the unauthorized release request will be acquired and notified to the carrier The technique made into this is disclosed (refer patent document 1).

JP 2006-261918 A

  However, the above-described patent document is a technique for determining whether or not unlocking is illegal, and only takes countermeasures when an illegal unlocking request is made.

  By the way, in recent years, mobile terminal communication devices capable of releasing the USIM lock have been released, and a service for releasing the USIM lock as a regular procedure is provided if the user desires. Various mechanisms have been devised and realized by the terminal manufacturers for the mechanism for releasing the USIM lock, but a multi-vendor system that releases mobile terminal communication devices to a plurality of communication carriers is adopted. Terminal manufacturers often employ a method that allows the communication terminal device itself to release the USIM lock without requiring a special external device for unlocking.

  In order to realize the USIM unlocking in this case, several methods have been considered. As one of them, in a state where a user interface (release code input screen) dedicated to USIM unlocking is displayed at a specific opportunity, There is a method of releasing the USIM lock by inputting a USIM lock release code corresponding to the communication terminal device to the input screen. In this case, the terminal manufacturer creates a list of USIM unlock codes set in each communication terminal device at the time of manufacturing the terminal and delivers the list to the telecommunications carrier side, and the telecommunications carrier side provides the USIM unlock service. At this time, the USIM lock is released using the USIM lock release code of the communication terminal device.

  This USIM lock release code is held (stored) inside the communication terminal device, and is associated with a mobile device identification number (International Mobile Equipment Identity) or the like. There is also a method of generating a USIM unlock code based on this mobile unit identification number, but in such a method, the mobile unit identification number is revealed to a third party due to the outflow of the generation algorithm of the release code. Since the possibility that the release code is estimated becomes high, the generation method for generating the release code independently is superior in terms of security. In addition, since the length of the USIM lock release code is, for example, a maximum of 16 digits and a finite combination, there is a possibility that the USIM lock may be released by a brute force trial by a third party. .

  In order to prevent the unauthorized release of the USIM lock due to this brute force attempt, it is possible to limit the number of operations for inputting the release code. Even in the case of a release operation, there are many cases where restrictions are imposed such that the communication function cannot be used every time the number of inputs reaches the input upper limit due to an operation error. On the other hand, if the upper limit of the input upper limit value is set high, the risk of cancellation due to an unauthorized operation increases. In other words, when a terminal manufacturer implements a USIM lock release mechanism in a communication terminal device, a mechanism to strictly prevent it is necessary for unauthorized lock release, and erroneous input during a release operation by a regular procedure However, it is necessary to relax regulations such as inability to communicate.

  An object of the present invention is to prevent unauthorized unlocking when an erroneous input of unlocking data for unlocking a lock function that restricts a communication network that can be connected based on a subscriber identification module occurs. It is to prevent severely and to relax regulations such as inability to communicate with respect to cancellation by regular procedures.

In order to solve the above-described problem, the mobile terminal communication device of the present invention
A mobile terminal communication device having a lock function for restricting a connectable communication network based on a subscriber identification module,
Counting means for counting the number of mismatches as the number of erroneous inputs every time a mismatch between the release data input for unlocking the lock function and the regular release data registered in advance is detected,
Release means for unlocking the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value;
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change means to change to the release data,
When the release data is changed by the changing means, the release data before the change is made with the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device as the destination. A notification means for notifying that the release data after the change should be updated,
A mobile terminal communication device characterized by comprising:

In order to solve the above-described problem, the terminal communication method of the present invention provides:
Each time a mismatch is detected between the release data entered to unlock the lock function that restricts the communication network that can be connected based on the subscriber identification module and the regular release data registered in advance, the mismatch is detected. A counting step for counting the number of times as the number of erroneous inputs;
A release step of unlocking the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value;
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change step to change to the release data,
When the release data is changed, after changing the release data before the change, with the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device as the destination A notification step for notifying that the release data should be updated,
It is a terminal communication method characterized by including.

In order to solve the above-described problems, the program of the present invention
Against the computer,
Each time a mismatch is detected between the release data entered to unlock the lock function that restricts the communication network that can be connected based on the subscriber identification module and the regular release data registered in advance, the mismatch is detected. A counting function that counts the number of times as the number of erroneous inputs;
A release function for unlocking the lock function on the condition that the regular release data is input before the number of erroneous inputs reaches the erroneous input allowable number setting value,
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change function to change to the release data,
When the release data is changed, after changing the release data before the change, with the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device as the destination A notification function for notifying that update data should be updated,
A program to realize

Furthermore, in order to solve the above-described problems, the terminal communication system of the present invention
A mobile terminal communication device having a lock function for restricting a connectable communication network based on a subscriber identification module, and a communication for storing and managing release data for unlocking the lock function for each mobile terminal communication device A terminal communication system provided with a management device on the operator side,
The portable terminal communication device is
Counting means for counting the number of mismatches as the number of erroneous inputs every time a mismatch between the release data input for unlocking the lock function and the regular release data registered in advance is detected;
Release means for unlocking the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value;
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change means to change to the release data,
When the release data is changed by the changing unit, the release data before the change is changed to the management device that stores and manages the release data for releasing the lock function of each mobile terminal communication device. A notification means for notifying that update data should be updated;
With
The management device
In response to the release data change notification by the notification means, update means for updating the release data before the change to release data after the change,
A reply means for returning the updated release data updated by the update means;
Comprising
This is a terminal communication system that is characterized as described above.

According to the present invention, when an erroneous input of unlock data for unlocking the lock function for restricting the communication network that can be connected based on the subscriber identification module occurs, It is possible to strictly prevent it, and to relax regulations such as inability to communicate with respect to cancellation by a regular procedure, and to implement measures that take into account both unauthorized cancellation and regular cancellation.

The block diagram which showed the outline | summary of the whole structure of a terminal communication system. FIG. 3 is a block diagram showing basic components of the mobile terminal communication device 1. The block diagram which showed the basic component of the list management apparatus 2. FIG. The block diagram which showed the basic component of the shop terminal device 5. FIG. The flowchart which showed the operation | movement (USIM lock cancellation | release process) of the portable terminal communication apparatus 1 started execution when operation which instruct | indicates the cancellation start of a USIM lock | rock was performed. The flowchart which showed the characteristic operation | movement of the shop terminal device 5. FIG. 6 is a flowchart showing a characteristic operation of the list management device 2; The functional block diagram for demonstrating the function (invention of the additional statement 1) of this invention.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
FIG. 1 is a block diagram showing an overview of the overall configuration of a terminal communication system.
The terminal communication system includes a mobile terminal communication device 1 having a lock function (USIM lock function) for restricting a wide area communication network that can be connected based on a subscriber identification module (USIM), and each mobile terminal communication device 1 It is a terminal communication system including a list management device (server device) 2 on a telecommunications carrier side that stores and manages a list of release codes (release data) for unlocking the lock function.

  The maker of the mobile terminal communication device 1 applies a USIM lock as a default so that the mobile terminal communication device 1 cannot use another carrier's USIM (Universal Subscriber Identification Module) and delivers it to the communication carrier side. However, the release code (release data) of the mobile terminal communication device 1 is used as a mechanism for releasing the USIM lock in order to enable the release service on the telecommunications carrier side to release the USIM lock as a regular procedure. It is stored in the internal memory.

  The mobile terminal communication device 1 includes a wide-area communication means, that is, a public communication means having a call function, an e-mail function, an Internet connection function (Web access function), and is, for example, a multifunctional mobile phone called a smartphone. A specific subscriber identification module can be used to connect to the wireless communication network 3 and the Internet 4 as a wide area communication network (public communication network). That is, when the mobile terminal communication device 1 is connected to the wireless communication network (mobile communication network) 3 via the nearest base station 3A and exchange 3B, another mobile phone (illustrated) is connected via the wireless communication network 3. (Omitted) is capable of high-speed and large-capacity communication. In addition, when the mobile terminal communication device 1 is connected to the Internet 4 via the wireless communication network 3, the mobile terminal communication device 1 can be accessed and browsed. As another communication means different from the wide area communication means (public communication means), a wireless LAN (Local Area Network) communication function and a short-range communication function are provided.

  The list management device (server device) 2 on the telecommunications carrier side stores and manages the release code list RCL for unlocking the USIM corresponding to each mobile terminal communication device 1, and is a business existing in various places. The shop terminal device 5 on the customer side is connected via the Internet 4. For example, when receiving a list transmission request from the shop terminal device 5 side, the list management device 2 transmits the release code list RCL to the requesting shop terminal device 5. This release code list RCL is configured to store a “release code” in association with the “mobile device identification number”.

  The wireless LAN 6 is a wireless communication network built on the shop side, and the mobile terminal communication device 1 is a wireless LAN communication function that is another communication means when the wide area communication means (public communication means) is unavailable due to the USIM lock. Is connected to the shop terminal device 5 through the shop terminal device 5 and can be connected to the list management device 2 on the telecommunications carrier side via the shop terminal device 5. When the wireless LAN 3 is not usable, the mobile terminal communication device 1 uses the short-range communication function, which is another communication function, to connect to the shop terminal device 5 and communicate via the shop terminal device 5. Communication connection is possible with the list management device 2 on the provider side.

FIG. 2 is a block diagram illustrating basic components of the mobile terminal communication device 1.
The central control unit 11 operates by supplying power from a power supply unit 12 including a secondary battery, and controls the overall operation of the mobile terminal communication device 1 according to various programs in the storage unit 13. And a memory (not shown). In addition to the program storage unit M1 and various information temporary storage units M2, the storage unit 13 is provided with a USIM unlock code storage unit M3, an erroneous input allowable number of times setting value storage unit M4, which will be described later, and the like.

  The program storage unit M1 stores programs and various applications for realizing the present embodiment in accordance with the operation procedure shown in FIG. 5, and stores information necessary for the programs. The storage unit 13 may be configured to include a removable portable memory (recording medium) such as an SD card or an IC card, and a part of the storage unit 13 has a predetermined external server area (not shown). It may be included. The various information temporary storage unit M2 is a work area for temporarily storing various information necessary for the mobile terminal communication device 1 to operate, such as flag information and screen information.

  The wireless communication unit 14 is a wide-area communication unit (public communication unit) that transmits and receives data to and from the nearest base station 3A during operations such as a call function, an e-mail function, and an Internet connection function. In this state, even if another carrier's USIM is attached, the USIM lock state is entered to restrict the use of the wireless communication unit 14. When the radio communication unit 14 takes in a signal from the receiving side of the baseband unit and demodulates it to the received baseband signal and outputs it to the central control unit 11 during operation of the call function, the central control unit 11 15, audio is output from the call speaker SP via 15, and input audio data from the call microphone MC is captured from the audio signal processing unit 15, encoded into a transmission baseband signal, and then transmitted to the transmission side of the baseband unit. Give it out of the antenna.

  The touch input display unit 16 has a configuration having a display panel and a touch panel (not shown), and assigns and arranges software keys (touch keys) by arranging the touch panel on the front surface of the high-definition display panel and assigns the function name to the touch key. It is a device that displays, displays an input screen, etc., or senses a touch operation with a finger or the like and inputs data according to the touch operation. The operation unit 17 has various push button type keys (for example, a power key). The wireless LAN communication unit 18 performs data communication with the shop terminal device 5 via the wireless LAN 6 constructed on the shop side. The short-range communication unit 19 performs data communication with the shop terminal device 5 according to a short-range communication method such as infrared communication or Bluetooth (registered trademark) communication.

  The USIM lock release code storage unit M3 stores and manages a USIM lock release code (for example, a code having a maximum of 16 digits) set to release the USIM lock as a regular procedure. When the operation for releasing the USIM lock is performed, the release data input from the touch input display unit 16 is compared with the regular release data registered in advance in the USIM lock release code storage unit M3. USIM lock is released when a match is detected. On the other hand, each time the central control unit 11 detects a mismatch between the input release data and the regular release data, the central control unit 11 counts the number of mismatches as the number of erroneous inputs, and the number of erroneous inputs is set to a predetermined erroneous input allowable number of times setting. Whether or not the value has been reached is determined.

  The erroneous input allowable frequency setting value storage unit M4 stores the erroneous input allowable frequency setting value in this case, and the erroneous input allowable frequency setting value can be arbitrarily changed and set in advance by a user operation. The central control unit 11 changes the release data in the USIM lock release code storage unit M3 in a state where the USIM lock is continued when the counted number of erroneous inputs reaches the set number of allowable erroneous inputs. ing.

  That is, a new USIM unlock code is generated and overwritten in the USIM unlock code storage unit M3, thereby changing the USIM unlock code. In this case, for example, a new USIM unlock code is generated by a unique method such as random generation. When the lock release code is changed in this way, the central control unit 11 should access the list management device 2 via the wireless communication network 3 and update the content of the release code list RCL to its own new release code. I try to tell you that.

FIG. 3 is a block diagram showing basic components of the list management device 2.
The central control unit 21 that forms the core of the list management device 2 operates by supplying power from a power supply unit 22 including an uninterruptible power supply (not shown), and this list management device according to various programs in the storage unit 23. 2 is a central processing unit that controls the overall operation of the second embodiment. The storage unit 23 stores various programs and information, and stores programs and various applications for realizing the present embodiment in accordance with the operation procedure shown in FIG.

  The main control unit 21 is connected with a wide-area communication unit 24, a display unit 25, an operation unit 26, and the like, which are input / output peripheral devices, and the main control unit 21 controls their operations according to the input / output program. The wide area communication unit 24 can be accessed in large numbers simultaneously, is connected to the broadband Internet (for example, optical communication connection), and is connected to the portable terminal communication device 1 and to the shop terminal device 5 on the telecommunications carrier side. Send and receive data with.

FIG. 4 is a block diagram showing basic components of the shop terminal device 5.
The central control unit 51 that forms the core of the shop terminal device 5 operates by supplying power from the power supply unit 52 and controls the overall operation of the shop terminal device 5 according to various programs in the storage unit 53. Device. The storage unit 53 stores various programs and information, and stores programs and various applications for realizing the present embodiment in accordance with the operation procedure shown in FIG.

  The main control unit 51 is connected to the wide-area communication unit 54, the display unit 55, the operation unit 56, the wireless LAN communication unit 57, the short-range communication unit 58, and the like, which are input / output peripheral devices. The main control unit 51 controls these operations. The wide area communication unit 54 is connected to the broadband Internet (for example, optical communication connection), and transmits / receives data to / from the list management device 2. The wireless LAN communication unit 57 performs data communication with the mobile terminal communication device 1 via the wireless LAN 6. The near field communication unit 58 performs data communication with the mobile terminal communication device 1 according to a near field communication method such as infrared communication or Bluetooth (registered trademark) communication.

  Next, the operation concept of the mobile terminal communication device 1, the list management device 2, and the shop terminal device 5 in the present embodiment will be described with reference to the flowcharts shown in FIGS. Here, each function described in this flowchart is stored in the form of a readable program code, and operations according to the program code are sequentially executed. FIG. 5 is a flowchart showing the operation (USIM lock release processing) of the mobile terminal communication device 1 that is started to be executed when an operation for instructing the start of USIM lock release is performed. In the event of a failure, the process returns to the main flow (not shown) of the overall operation.

  In the shop on the telecommunications carrier side, the store clerk performs an operation to instruct the start of USIM lock release when the user requests use of the USIM lock release service. Thereby, the flow of FIG. 5 is started. First, the central control unit 11 displays an input screen for USIM unlock on the touch input display unit 16 (step A1 in FIG. 5), and then enters a USIM unlock code in the input field of the content of the unlock screen. It will be in a standby state until is input (step A2). In this case, the shop side refers to the release code list RCL provided by the terminal manufacturer, and inputs the USIM lock release code of the mobile terminal communication device 1.

  When the USIM unlock code is input (YES in step A2), the USIM unlock code registered in the USIM unlock code storage unit M3 is read (step A3), and the input code and the registered code are compared. It is checked whether they match, that is, whether the input release code is a regular code registered in the USIM lock release code storage unit M3 (step A4). Here, if it is a legitimate code (YES in step A4), after the USIM lock release (step A5) is performed, the flow of FIG. 5 is exited.

  On the other hand, if the input code is not a normal code (NO in step A4), it is determined that the release code is erroneously input, and an initial value “1” is displayed in a cumulative counter (not shown) for counting the number of erroneous inputs. "Is added to update the value (step A6). Then, the setting value stored in the erroneous input allowable number of times setting value storage unit M4 is read (step A7), the count value of the cumulative counter is compared with the set value, and it is checked whether the count value exceeds the set value. (Step A8). Here, if the erroneous input allowable number of times setting value has not been exceeded (NO in step A8), the process returns to the above-described step A2 to enable re-input of the release code. The above operation is repeated.

  As a result of repeatedly inputting the release code in this way, if the erroneous input allowable number set value is exceeded (YES in Step A8), a new release code different from the contents of the USIM lock release code storage unit M3 is generated (Step S8). A9). In this case, a new USIM unlock code is generated by a unique method such as random generation. Then, the new release code generated this time is overwritten and saved in the USIM lock release code storage unit M3 to change the release code (step A10), and from the wireless LAN communication unit 18 and the short-range communication unit 19 A connectable communication unit is selected according to the environment (step A11).

  Then, from the selected communication unit (wireless LAN communication unit 18 or short-range communication unit 19) to the shop terminal, the list management device 2 is set as the destination for the release code change notification including its own mobile device identification number and the new USIM lock release code. It transmits via the apparatus 5 (step A12). Thereafter, the operation of the selected communication unit (wireless LAN communication unit 18 or short-range communication unit 19) is stopped (step A13), and the contents of the above-described cumulative counter (not shown) are reset to stop the measurement operation ( After step A14), the flow of FIG. 5 is exited.

FIG. 6 is a flowchart showing a characteristic operation of the shop terminal device 5.
First, the shop terminal device 5 checks whether there is reception from the wireless LAN communication unit 18 (step B1), checks whether there is reception from the short-range communication unit 19 (step B2), and performs some operation. It is checked whether it has been received (step B3). When any operation is performed (YES in step B3), a process corresponding to the operation (step B4) is executed, and then the process returns to step B1. When the reception from the wireless LAN communication unit 18 is detected (YES in step B1) or the reception from the short-range communication unit 19 is detected (YES in step B2), the release code addressed to the list management device 2 is changed. It is checked whether the notification has been received (step B5).

  If the received content from the wireless LAN communication unit 18 or the short-range communication unit 19 is not a release code change notification addressed to the list management device 2 (NO in step B5), the shop terminal device 5 performs processing according to the received content (NO in step B5). Move on to step B6). When a release code change notification addressed to the list management device 2 is received (YES in step B5), this change notification is transferred to the list management device 2 to indicate that the content of the release code list RCL should be updated. (Step B7).

FIG. 7 is a flowchart showing a characteristic operation of the list management apparatus 2.
First, the list management device 2 checks whether a cancellation code change notification has been received from the shop terminal device 5 (step C1), or checks whether a list transmission request has been received from the shop terminal device 5 (step C2). . As a result, if none is received (NO in step C2), after performing other processing (step C3), the process returns to step C1.

  When the release code change notification is received from the shop terminal device 5 (YES in step C1), the mobile device identification number and the new release code included in this change notification are received (step C5). Then, the release code list RCL is searched based on the received mobile unit identification number, and a process of updating to the new release code received for the corresponding release code is performed (step C6). Then, after transmitting the contents of the updated release code list RCL to the shop terminal device 5 (step C4), the process returns to step C1.

  Upon receiving the updated release code list RCL contents from the list management apparatus 2 (step B8 in FIG. 6), the list management apparatus 2 displays the updated release code list RCL contents (step B9). Here, the store clerk refers to the contents of the list, visually confirms the new release code after the change, and inputs a new release code on the input screen of the mobile terminal communication device 1 (USIM lock (Release operation) continues.

  As described above, in this embodiment, the mobile terminal communication device 1 calculates the number of mismatches each time it detects a mismatch between the input release data and the regular release code registered in the USIM unlock code storage unit M3. When the number of erroneous inputs is counted, and when the normal release data is input before the erroneous input count reaches the set value in the allowable erroneous input count set value storage unit M4, the USIM lock is released. Since the release data is changed to the newly generated release data and notification that the release data should be updated is sent to the list management device 2 as the destination, the allowable number of erroneous inputs is set to a low value. Even if attempts are made to prevent unauthorized unlocking of USIM locks, the lock release operation can be continued using the new release code after the change for regular release. It can be strictly prevented against unauthorized unlocking, and regulations such as inability to communicate can be relaxed against unauthorized procedures, and both unauthorized and authorized It becomes possible to realize a countermeasure in consideration, and it is rich in practicality.

  The portable terminal communication device 1 is a communication unit different from the wireless communication unit 14 as a wide area communication unit (public communication unit), and is a wireless LAN communication unit 18 as another communication unit capable of communication connection with the shop terminal device 5. And the short-range communication unit 19, and the cancellation code change notification is transmitted from the wireless LAN communication unit 18 or the short-range communication unit 19 via the shop terminal device 5 with the list management device 2 as a destination. Even when the communication unit 14 cannot be used, a cancellation code change notification can be sent to the list management device 2 to update the content of the cancellation code list RCL, and the shop terminal device 5 also lists the new cancellation code after the change. It can be obtained immediately from the management device 2 and the unlocking operation can be continued.

  Since the mobile terminal communication device 1 can arbitrarily set the allowable input error count setting value, the mobile terminal communication device 1 can be changed to a value that takes into account both illegal cancellation and regular cancellation.

  A terminal communication system including the mobile terminal communication device 1 and the list management device 2, and the mobile terminal communication device 1 detects the mismatch between the input release data and the registered normal release code each time The number of mismatches is counted as the number of erroneous inputs, and when the regular release data is input before the number of erroneous inputs reaches the set value in the erroneous input allowable number set value storage unit M4, the USIM lock is released. When the set value is reached, the release data is changed to newly generated release data, the list management device 2 is notified that the release data should be updated, and the list management device 2 responds to the release data change notification. Since the release data before the change is updated to the release data after the change and the release data after the update is returned, it is strictly prevented against unauthorized unlocking. , For the release by normal procedures, and deregulation of such incommunicable, it is possible to realize the measures that considers both unauthorized release and authorized release, becomes rich in practicability.

  The mobile terminal communication device 1 transmits a release code change notification from the wireless LAN communication unit 18 or the short-range communication unit 19 via the shop terminal device 5 with the list management device 2 as the destination, and the list management device 2 receives the release data. When the change notification is received via the shop terminal device 5, the release code list RCL is updated according to the notification content, and the updated release data is returned to the shop terminal device 5. Even when communication between the mobile terminal communication device 1 and the list management device 2 is not possible, the unlocking operation can be continued.

  In the embodiment described above, the release code change notification is transmitted from the wireless LAN communication unit 18 or the short-range communication unit 19 via the shop terminal device 5 with the list management device 2 as the destination. The present invention is not limited to the case of passing through the communication unit 18 or the short-range communication unit 19. The mobile terminal communication device 1 may connect to the list management device 2 and transmit a release code change notification when the wide area communication means becomes connectable.

  Further, the USIM unlock code is not limited to the 16-digit configuration, and the number of digits is arbitrary, and is not limited to the release code, and may be arbitrary release data such as a configuration including a character string and a symbol.

  In the embodiment described above, when the user requests use of the USIM unlock service, the input screen for unlocking USIM is displayed in response to an operation instructing the start of unlocking the USIM lock. The display timing of the input screen is not limited to this. For example, the input screen may be displayed when the USIM of another communication carrier is attached.

  In the above-described embodiment, the case where the present invention is applied to a mobile phone as a mobile terminal communication device has been described. However, a PDA (personal portable information communication device) with a communication function, a music player, a camera device, or the like may be used.

  In addition, the “apparatus” and “unit” shown in the above-described embodiments may be separated into a plurality of cases by function, and are not limited to a single case. In addition, each step described in the above-described flowchart is not limited to time-series processing, and a plurality of steps may be processed in parallel or separately.

  A part or all of the above-described embodiment can be described as the following supplementary notes, but is not limited thereto. Hereinafter, various aspects of the present invention will be collectively described as supplementary notes.

(Appendix 1)
FIG. 8 is a block diagram (functional block diagram) of Appendix 1. As shown in this figure, the invention described in Appendix 1 is
A mobile terminal communication device having a lock function for restricting a connectable communication network based on a subscriber identification module,
Counting means 101 (FIG. 2) counts the number of mismatches as the number of erroneous inputs each time a mismatch between the release data input for unlocking the lock function and the regular release data registered in advance is detected. Then, central control unit 11, storage unit 13),
Release means 102 (the central control unit 11 in FIG. 2 stores the lock function) on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value. Part 13, touch input display part 16),
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Changing means 103 (in FIG. 2, the central control unit 11 and the storage unit 13) for changing to the release data,
When the release data is changed by the changing means 103, the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device (list management device 2 in FIG. 1) As a destination, notification means 104 for notifying that the release data before the change should be updated to the release data after the change (in FIG. 2, the central control unit 11, the storage unit 13, the wireless LAN communication unit 18, the short-range communication unit) 19)
A portable terminal communication device comprising:

(Appendix 2)
The communication means different from the communication means using the communication network, further comprising other communication means capable of communication connection to the store side terminal device of the communication carrier of the mobile terminal communication device,
When the release data is changed by the changing unit, the notifying unit is connected to the store side terminal device using the other communication unit to connect the communication business via the store side terminal device. Notification that the release data before the change should be updated to the release data after the change.
The mobile terminal communication apparatus according to claim 1, wherein the mobile terminal communication apparatus is configured as described above.

(Appendix 3)
A setting means for arbitrarily setting the predetermined erroneous input allowable number of times setting value;
The mobile terminal communication device according to claim 1 or 2, wherein the mobile terminal communication device is configured as described above.

(Appendix 4)
Each time a mismatch is detected between the release data entered to unlock the lock function that restricts the communication network that can be connected based on the subscriber identification module and the regular release data registered in advance, the mismatch is detected. A counting step for counting the number of times as the number of erroneous inputs;
A release step of unlocking the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value;
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change step to change to the release data,
When the release data is changed, after changing the release data before the change, with the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device as the destination A notification step for notifying that the release data should be updated,
The terminal communication method characterized by including.

(Appendix 5)
Against the computer,
Each time a mismatch is detected between the release data entered to unlock the lock function that restricts the communication network that can be connected based on the subscriber identification module and the regular release data registered in advance, the mismatch is detected. A counting function that counts the number of times as the number of erroneous inputs;
A release function for unlocking the lock lock function of the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable frequency setting value,
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change function to change to the release data,
When the release data is changed, after changing the release data before the change, with the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device as the destination A notification function for notifying that update data should be updated,
A program to realize

(Appendix 6)
A mobile terminal communication device having a lock function for restricting a connectable communication network based on a subscriber identification module, and communication for storing and managing release data for unlocking the lock function for each mobile terminal communication device A terminal communication system provided with a management device on the operator side,
The portable terminal communication device is
Counting means for counting the number of mismatches as the number of erroneous inputs every time a mismatch between the release data input for unlocking the lock function and the regular release data registered in advance is detected;
Release means for unlocking the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value;
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change means to change to the release data,
When the release data is changed by the changing unit, the release data before the change is changed to the management device that stores and manages the release data for releasing the lock function of each mobile terminal communication device. A notification means for notifying that update data should be updated;
With
The management device
In response to the release data change notification by the notification means, update means for updating the release data before the change to release data after the change,
A reply means for returning the updated release data updated by the update means;
Comprising
A terminal communication system characterized by being configured as described above.

(Appendix 7)
The portable terminal communication device is
The communication means different from the communication means using the communication network, further comprising other communication means capable of communication connection to the store side terminal device of the communication carrier of the mobile terminal communication device,
When the release data is changed by the changing unit, the notifying unit is connected to the store side terminal device using the other communication unit to connect the communication business via the store side terminal device. Notification that the release data before the change should be updated to the release data after the change
The management device
When the release data change notification is received from the mobile terminal communication device via the store side terminal device, the update means updates the corresponding release data according to the notification content,
The reply means returns the updated release data to the store side terminal device;
The terminal communication system according to claim 6, which is configured as described above.

(Appendix 8)
The portable terminal communication device is
A setting means for arbitrarily setting the predetermined erroneous input allowable number of times setting value;
The terminal communication system according to claim 6 or 7, wherein the terminal communication system is configured as described above.

DESCRIPTION OF SYMBOLS 1 Mobile terminal communication apparatus 2 List management apparatus 3 Wireless communication network 4 Internet 5 Shop terminal apparatus 6 Wireless LAN
11, 21 Central control unit 13, 23 Storage unit 14, 24 Wireless communication unit 16 Touch input display unit 18, 57 Wireless LAN communication unit 19, 58 Short range communication unit RCL Release code list M1 Program storage unit M2 Various information temporary storage unit M3 USIM unlock code storage unit M4 erroneous input allowable number of times setting value storage unit

Claims (8)

A mobile terminal communication device having a lock function for restricting a connectable communication network based on a subscriber identification module,
Counting means for counting the number of mismatches as the number of erroneous inputs every time a mismatch between the release data input for unlocking the lock function and the regular release data registered in advance is detected;
Release means for unlocking the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value;
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change means to change to the release data,
When the release data is changed by the changing means, the release data before the change is made with the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device as the destination. A notification means for notifying that the release data after the change should be updated,
A portable terminal communication device comprising: The communication means different from the communication means using the communication network, further comprising other communication means capable of communication connection to the store side terminal device of the communication carrier of the mobile terminal communication device,
When the release data is changed by the changing unit, the notifying unit is connected to the store side terminal device using the other communication unit to connect the communication business via the store side terminal device. Notification that the release data before the change should be updated to the release data after the change.
The mobile terminal communication apparatus according to claim 1, wherein the mobile terminal communication apparatus is configured as described above. A setting means for arbitrarily setting the predetermined erroneous input allowable number of times setting value;
The mobile terminal communication device according to claim 1 or 2, wherein the mobile terminal communication device is configured as described above. Each time a mismatch is detected between the release data entered to unlock the lock function that restricts the communication network that can be connected based on the subscriber identification module and the regular release data registered in advance, the mismatch is detected. A counting step for counting the number of times as the number of erroneous inputs;
A release step of unlocking the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value;
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change step to change to the release data,
When the release data is changed, after changing the release data before the change, with the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device as the destination A notification step for notifying that the release data should be updated,
The terminal communication method characterized by including. Against the computer,
Each time a mismatch is detected between the release data entered to unlock the lock function that restricts the communication network that can be connected based on the subscriber identification module and the regular release data registered in advance, the mismatch is detected. A counting function that counts the number of times as the number of erroneous inputs;
A release function for unlocking the lock lock function of the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable frequency setting value,
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change function to change to the release data,
When the release data is changed, after changing the release data before the change, with the management device on the telecommunications carrier side that stores and manages the release data for releasing the lock function of each mobile terminal communication device as the destination A notification function for notifying that update data should be updated,
A program to realize A mobile terminal communication device having a lock function for restricting a connectable communication network based on a subscriber identification module, and a communication for storing and managing release data for unlocking the lock function for each mobile terminal communication device A terminal communication system provided with a management device on the operator side,
The portable terminal communication device is

Counting means for counting the number of mismatches as the number of erroneous inputs every time a mismatch between the release data input for unlocking the lock function and the regular release data registered in advance is detected,
Release means for unlocking the lock function on the condition that the regular release data is input before the erroneous input count reaches the erroneous input allowable count setting value;
When the erroneous input count reaches the erroneous input allowable count setting value, new release data is generated in a state where the lock function is kept locked, and the registered regular release data is changed to the new correct release data. Change means to change to the release data,
When the release data is changed by the changing unit, the release data before the change is changed to the management device that stores and manages the release data for releasing the lock function of each mobile terminal communication device. A notification means for notifying that update data should be updated;
With
The management device
In response to the release data change notification by the notification means, update means for updating the release data before the change to release data after the change,
A reply means for returning the updated release data updated by the update means;
Comprising
A terminal communication system characterized by being configured as described above. The portable terminal communication device is
The communication means different from the communication means using the communication network, further comprising other communication means capable of communication connection to the store side terminal device of the communication carrier of the mobile terminal communication device,
When the release data is changed by the changing unit, the notifying unit is connected to the store side terminal device using the other communication unit to connect the communication business via the store side terminal device. Notification that the release data before the change should be updated to the release data after the change
The management device
When the release data change notification is received from the mobile terminal communication device via the store side terminal device, the update means updates the corresponding release data according to the notification content,
The reply means returns the updated release data to the store side terminal device;
The terminal communication system according to claim 6, which is configured as described above. The portable terminal communication device is
A setting means for arbitrarily setting the predetermined erroneous input allowable number of times setting value;
The terminal communication system according to claim 6 or 7, wherein the terminal communication system is configured as described above.

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