Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it should be noted that the same components in the accompanying drawings are represented by the same reference numerals as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted.
It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.
Prior to the detailed description, hereinafter, a portable terminal equipped with three user identification cards will be described. However, the present invention is not limited thereto. That is, it will be apparent to those skilled in the art that the present invention can be applied to a portable terminal equipped with two or more user identification cards.
Hereinafter, the "user identification card" is a device for storing subscriber authentication information. Such a user identification card may be called a subscriber identity module (SIM), a universal subscriber identity module (USIM), a user identity module (UIM), a removable user identification module (RUIM), or the like. Hereinafter, for the convenience of description, the description will be referred to collectively as a user identification card.
1 is a view schematically showing the configuration of a portable terminal 100 according to an embodiment of the present invention.
Referring to FIG. 1, the portable terminal 100 according to an exemplary embodiment of the present invention includes a mounting unit 160, a wireless communication unit 150, a selection unit 140, a display unit 130, a storage unit 120, and a control unit ( 110). The mounting unit 160 may include a first mounting unit 161 on which the first user identification cards SIM1 and 61 are mounted, a second mounting unit 162 on which the second user identification cards SIM2 and 62 are mounted, and a third user identification. It may include a third mounting portion 163 is mounted card (SIM3, 63).
The mobile terminal 100 according to the present invention having such a configuration extracts and stores identification information for a plurality of user identification cards, and a user in a state in which a specific user identification card of the plurality of user identification cards is registered in a mobile communication network. When the change request signal of the identification card is input, the specific user identification card may be deactivated according to the change request signal, and another user identification card requested to be changed may be activated and registered in the mobile communication network. As described above, the present invention can be equipped with a plurality of user identification cards carried by the user in the portable terminal 100, and can be easily changed to an appropriate user identification card according to the situation. Hereinafter, for the convenience of description, the case of changing from the first user identification card 61 to the second user identification card 62 will be described as an example.
Hereinafter, each configuration of the mobile terminal 100 according to an embodiment of the present invention will be described in more detail.
The mounting unit 160 is a device for mounting a plurality of user identification cards (61, 62, 63), and serves as an interface unit for connecting the plurality of user identification cards (61, 62, 63) and the control unit 110. do. The mounting unit 160 is formed in a manner of changing and mounting a plurality of user identification cards such as a compact disk (CDR) changer of a car audio system (hereinafter referred to as A type), or a plurality of mounting units in the portable terminal 100. It may be formed in a manner of mounting any one of the plurality of mounting portion (161, 162, 163) using the selection unit 140 and connecting to the control unit 100 (hereinafter referred to as B type). Hereinafter, the B type will be described as an example. That is, as shown in FIG. 1, a first user identification card 61 is mounted on the first mounting unit 161, a second user identification card 62 is mounted on the second mounting unit 162, and a third A case in which the third user identification card 63 is mounted on the mounting unit 163 will be described as an example. Here, the first user identification card 61 to the third user identification card 63 may be a user identification card of the same mobile communication method. For example, the first user identification card 61 to the third user identification card 63 may include Global System for Mobile Communication (GSM), General Packet Radio Service (GPRS), Enhanced Data Gsm Enviroment (EDGE), UMTS (UMTS). It may be a user identification card corresponding to any one of mobile communication schemes such as Universal Mobile Telecommunications System (CDMA), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), and the like.
The selector 140 may connect any one of the plurality of user identification cards 61, 62, and 63 to the controller 110 under the control of the controller 110. In other words, the selection unit 140 may allow any one of the first user identification card 61 to the third user identification card 63 and the control unit 110 to establish a communication channel. The selector 140 may be formed of a data selector (eg, a multiplexer) that selects and outputs any one of a plurality of input signals. When the mounting unit 160 is formed of an A type, the selecting unit 140 may be omitted.
The wireless communication unit 150 is a device for transmitting and receiving a wireless signal with a mobile communication network (hereinafter referred to as a base station), a transmission and reception separation unit (not shown) for separating the transmission and reception signal and RF (Radio Frequency) for up-converting and amplifying the frequency of the transmission signal A transmitter (not shown) and an RF receiver (not shown) for low noise amplifying a received signal and down converting a frequency. In particular, the wireless communication unit 150 according to the present invention scans and measures the frequencies around the booting to obtain identification information of the base station having the largest strength of the received signal, and corresponds to a user corresponding to the base station having the largest strength of the received signal. The registration request signal of the identification card can be transmitted to the base station. Alternatively, the wireless communication unit 150 searches for a base station (hereinafter referred to as a first base station) corresponding to the first user identification card 61 mounted on the mounting unit, for example, the first mounting unit 161, which is set as a default. The registration request signal may be transmitted.
The wireless communication unit 150 transmits a call forwarding request message including a telephone number of the second user ID card 62 when the user requests a call forwarding setup when the user ID card is changed under the control of the controller 110. Can be sent to. In this way, the present invention can receive a call request, text message, etc. for the first user identification card 61 through the second user identification card 62 even if the first user identification card 61 is deactivated. . Thereafter, the wireless communication unit 150 may transmit a registration request signal of the second user identification card 62 to a corresponding base station (hereinafter referred to as a second base station).
The display unit 130 may display various menu screens of the mobile terminal 100, user data input by the user, function setting information, or various information provided to the user. For example, the display unit 130 may output a boot screen, a standby screen, a menu screen, a video call screen, and the like. In particular, the display unit 130 according to the present invention outputs a user identification card selection screen for outputting identification information of user identification cards mounted on the first mounting unit 161 to the third mounting unit 163 when the user identification card change mode is activated. can do. In this case, the display unit 130 may output the identification information of the user identification cards to at least one of map data displayed by dividing and displaying the usable area of the user identification card. In addition, the display unit 130 is mounted on the user identification card (activated user identification card) currently registered in the base station and the mobile terminal 100 under the control of the controller 110, but is not registered in the base station user identification card (deactivated) User identification cards) can be displayed visually. Detailed description thereof will be described later with reference to FIGS. 4 and 5. In addition, the display unit 130, for example, when the identification information of the base station is changed, for example, the second region using the second user identification card 62 in the first region where the mobile terminal 100 uses the first user identification card 61; In case of moving to, a popup window for checking whether the user identification card has been changed may be output. The display unit 130 may be formed of a liquid crystal display (LCD) and an organic light emitting diode (OLED). When the display unit 130 is formed in the form of a touch screen, the display unit 130 may be operated as an input unit (not shown).
The storage unit 120 is an operating system (OS) of the portable terminal 100 according to an embodiment of the present invention, other options (options) function, for example, sound playback function, image or video playback function, broadcast playback function, etc. In addition to necessary applications, user data and data transmitted and received during communication can be stored. In particular, the storage unit 120 according to the present invention may store identification information of the first user identification card 61 to the third user identification card 63 mounted on the mounting unit 160. The storage unit 120 may store identification information of the first user identification card 61 to the third user identification card 63 in the form of a list. Alternatively, the storage unit 120 may store identification information of the first user identification card 61 to the third user identification card 63 using map data. Detailed description thereof will be described later with reference to FIGS. 4 and 5. Identification information of the first user identification card 61 to the third user identification card 63 may be extracted and stored when the booting procedure is performed. In addition, the storage unit 120 may store an application program for changing the user identification card according to the change of the identification information of the base station. In addition, the storage unit 120 may output a user identification card selection screen when the user identification card change mode is activated, and store an application program for activating the user identification card selected on the user identification card selection screen and registering it with the base station.
The controller 110 controls the overall operation of the mobile terminal 100 and the signal flow between the internal blocks of the mobile terminal 100, and functions as a data processor for processing data transmitted and received through the wireless communication unit 150. It may include. In particular, the control unit 110 according to the present invention to extract the identification information of the plurality of user identification cards (61, 62, 63) mounted on the mounting unit 160 to perform the booting procedure to store in the storage unit 120 Can be controlled. That is, the controller 110 may extract International Mobile Subscriber Identity (IMSI) information of the first user identification card 61 to the third user identification card 63. The IMSI information may include a mobile country code (MCC), a mobile network code (MNC), a mobile subscriber identification number (MDN), and the like. Alternatively, the controller 110 may further extract various information for identifying a business operator stored in the first user identification card 61 to the third user identification card 63, for example, a service provider name (SPN). Can be. Since the International Mobile Subscriber Identity (IMSI) information is obvious to those of ordinary skill in the art, a detailed description thereof will be omitted.
The control unit 110 may control the wireless communication unit 150 to perform peripheral frequency scan and measurement to obtain identification information of the base station. Thereafter, the controller 110 may transmit a registration request signal of a user identification card having the same identification information as that of the base station obtained by controlling the wireless communication unit 150 to the corresponding base station. For example, the controller 110 may control the wireless communication unit 150 to transmit a registration request signal of the first user identification card 61 to the first base station. In this case, the controller 110 may control the selector 140 to form a communication channel between the first user identification card 61 and the controller 110. The first user identification card 61 is registered with the first base station through the frequency scan and measurement, and when the booting procedure is completed, the controller 110 may be in an idle state. The controller 110 may update a location information update (LAU), a base station selection, a cell selection, and a cell reselection with respect to the first user identification card 61 in a standby state. Cell Reselection) and neighbor cell measurement may be performed periodically.
The controller 110 may check whether a user identification card change request signal is input. The user identification card change request signal may occur when identification information of the base station is changed. For example, the controller 110 may reduce the received signal strength corresponding to the first user identification card 61 to a predetermined reference value or less, and the received signal strength corresponding to the second user identification card 62 may be the reference value. In case of abnormality, the user identification card change request signal may be generated. Alternatively, the user identification card change request signal may occur when a user requests a change to a specific user identification card by activating the user identification card change mode.
When the user identification card change request signal is input, the controller 110 may activate the second user identification card 62 and deactivate the first user identification card 61 according to the change request. In this case, the controller 110 may control to output a pop-up window for confirming whether the call forwarding setting is set for the first user identification card 61 to the display unit 130. When selecting to set the call forwarding, the control unit 110 includes the incoming call number including the telephone number of the second user identification card 62 through the wireless communication unit 150 before changing to the second user identification card 62. The switch request signal may be controlled to be transmitted to the first base station corresponding to the first user identification card 61.
Meanwhile, in FIG. 1, the mounting unit 160 is illustrated as being included in the mobile terminal 100, but the present invention is not limited thereto. For example, the mounting unit 160 may be formed as an external device that can be wired or wirelessly connected to the mobile terminal 100. As such, when the mounting unit 160 is formed as an external device, the portable terminal 100 may further include an interface unit for wired connection with the mounting unit 160 or a short range wireless communication unit for wireless connection with the mounting unit 160. have. The short range wireless communication unit may be formed of a Bluetooth module, an infrared communication module, a Zigbee communication module, a UWB communication module, and the like. Since such a short range wireless communication method is obvious to those skilled in the art, detailed description thereof will be omitted.
In the above, the configuration of the mobile terminal 100 according to the embodiment of the present invention has been described with reference to FIG. 1. Hereinafter, a method of changing a user ID card of the portable terminal 100 according to an exemplary embodiment of the present invention will be described with reference to FIG. 2.
2 is a flowchart illustrating a method of changing a user identification card of the mobile terminal 100 using identification information of a base station according to an exemplary embodiment of the present invention.
1 and 2, the control unit 110 according to the present invention performs a booting procedure according to a boot request in step 201, and identifies a plurality of user identification cards 61, 62, and 63 in step 203. Information can be extracted and stored. In detail, the controller 110 may extract International Mobile Subscriber Identity (IMSI) information of the first user identification card 61 to the third user identification card 63. The IMSI information may include a mobile country code (MCC), a mobile network code (MNC), a mobile subscriber identification number (MDN), and the like. Alternatively, the controller 110 may further extract various information for identifying a business operator stored in the first user identification card 61 to the third user identification card 63, for example, a service provider name (SPN). have. Such identification information may be stored in a list form as shown in FIG. 4. Alternatively, as shown in FIG. 5, the data may be stored in the form of map data. To this end, the storage unit 120 preferably includes map data indicating a mobile communication service area of each provider.
On the other hand, when the mounting unit 160 is formed as an external device, the control unit 110 may request and receive identification information on the user identification card from the mounting unit 160 through a wired or wireless communication channel when performing a booting procedure. Alternatively, the control unit 110 requests identification information on the user identification card included in the mounting unit 160 after the booting is completed or the user included in the mounting unit 160 when detecting a communication connection with the mounting unit 160. Identification information for the identification card may be requested.
The controller 110 may acquire identification information of the base station in step 205. To this end, the controller 110 may control the wireless communication unit 150 to perform frequency scan and measurement of the surroundings and to obtain identification information of the base station having the largest intensity of the received signal.
Next, in step 207, the controller 110 may check whether a user identification card having identification information that matches the obtained identification information of the base station exists. To this end, the controller 110 may compare the mobile country code (MCC) and mobile network code (MNC).
If there is no user identification card that matches the identification information in step 207, the controller 110 proceeds to step 219 and outputs an error message indicating that there is no user identification card that can be registered to the base station to the display unit 130. In step 210, the process returns to the standby state. On the other hand, if there is a user identification card that matches the identification information in step 207, the control unit 110 proceeds to step 209 to activate the user identification card that matches the identification information to control to register with the base station. Here, when there are a plurality of user identification cards that match the identification information, the controller 110 may output the user identification card selection screen to the display unit 130.
When the booting procedure is completed, the controller 110 may be in a standby state in step 210. Next, the controller 110 may check whether the base station identification information is changed in step 211. If the base station identification information does not change, the control unit 110 returns to step 210. On the other hand, when the base station identification information is changed, the control unit 110 proceeds to step 213 and checks whether there is a user identification card, for example, a second user identification card 62 having the same identification information as the changed base station identification information. If the second user identification card does not exist, the controller 110 proceeds to step 219 and outputs an error message to the display unit 130. On the other hand, if the second user identification card 62 exists, the controller 110 may change to the user identification card in step 215. That is, the controller 110 may deactivate the first user identification card 61 and activate the second user identification card 62. In detail, the controller 110 enters a No SIM state corresponding to a user ID card not installed state, and selects an interface between the second user ID card 62 and the controller 110. After controlling the unit 140, a protocol procedure for registering the second user identification card 62 may be performed. In this case, when the mounting unit 160 is A type, the process of controlling the selecting unit 140 may be omitted. The present invention may further include outputting a pop-up window confirming whether the user identification card has been changed before performing step 215.
Next, when the card change is completed, the control unit 110 returns to step 209 to register the changed card information in the corresponding base station and repeat the above-described process.
On the other hand, it has been described as selecting and registering the user identification card according to the received signal strength at boot, but the present invention is not limited thereto. For example, the controller 110 searches for a base station corresponding to the first user identification card 61 mounted on the mounting unit, for example, the first mounting unit 161 set as a default at booting, and searches the base station for the first user identification card ( 61) may be controlled to transmit the registration request signal.
3 is a flowchart illustrating a method of changing a user identification card through a user identification card selection screen according to another embodiment of the present invention, and FIGS. 4 and 5 are views for explaining another embodiment of the present invention.
1 to 5, the controller 110 may be in an idle state in step 301. Next, the controller 110 may detect activation of the user identification card change mode in step 303. The user identification card change mode may be activated by a user by inputting a preset function key or through a menu.
When the user identification card change mode is activated, the controller 110 may output a user identification card selection screen to the display 130 in step 305. The user identification card selection screen is a screen for selecting a user identification card to be changed and may be output in a list form as shown in FIG. 4 or in map data form as shown in FIG. 5. In this case, the display unit 130 and other user identification cards (62, 63) that are inactive by highlighting or changing the index (for example, icons, text, etc.) corresponding to the currently activated first user identification card (61) The output can be visually distinguished. For example, as illustrated in FIG. 5, the display unit 130 may highlight and display the index 510 of the currently activated first user identification card.
Meanwhile, when a region (eg, region B or region D) in which a plurality of user identification cards are available is selected, the controller 110 may output a pop-up window for selecting a user identification card to the display 130. Alternatively, when the display unit 130 is formed in the form of a touch screen, the controller 110 may include a user identification card having a touch among the index 520 of the second user identification card and the index 530 of the third user identification card available in the region B. FIG. Can be activated. Alternatively, the controller 110 may move the highlight display according to the direction key input signal. Through this, the user can easily change the user identification card by selecting any one of the indices of the user identification card using the direction key of the input unit (not shown). 4 and 5 illustrate an example according to an embodiment of the present invention, but do not limit the present invention.
In operation 307, the controller 110 may check whether a specific user identification card, for example, the second user identification card 62, is selected. The specific user identification card may be selected through a touch operation when the display unit 130 is formed as a touch screen. Alternatively, the specific user identification card may be selected through a direction key and an OK key of an input unit (not shown).
If the specific user identification card is not selected, the controller 110 may proceed to step 315 described later. On the other hand, when the specific user identification card is selected, the control unit 110 proceeds to step 309 to check whether the call forwarding setting. The call forwarding setting is a function for automatically connecting an incoming call request, text message, etc. to another phone number. If the call forwarding setting is requested, the controller 110 proceeds to step 313 and transmits a call forwarding request message including the phone number of the second user identification card 62 to the first base station through the wireless communication unit 150. Can be. On the other hand, when the call forwarding setting is not requested or after the call forwarding request message is transmitted, the controller 110 may change to the user identification card in step 311. For example, the controller 110 may deactivate the first user identification card 61 and activate the second user identification card 62 to register the second user identification card 62 with the second base station.
Next, in step 315, the controller 110 checks whether a termination command of the user identification card change mode is input, returns to step 301 when the termination command of the user identification card change mode is input, and returns to the user identification card change mode. If the end command is not input, the process returns to step 305 and the above-described process can be repeated.
On the other hand, the above description has been made with an example of a mobile terminal equipped with three user identification cards. However, the present invention is not limited thereto. That is, the present invention can be applied to both portable terminals using two or more user identification cards.
In the above description with reference to the drawings and preferred embodiments of the method and apparatus for changing the user identification card according to the present invention, although specific terms are used, it is only easy to describe the technical content of the present invention and to understand the invention. It is only used in a general sense to help the invention, the present invention is not limited to the above-described embodiment. That is, it is apparent to those skilled in the art that various embodiments based on the technical idea of the present invention are possible.
