JP2018181092A - Electronic information storage medium, ic card, activation control method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic information storage medium, an IC card, an activation control method, and a program capable of activating or deactivating a CLF at appropriate timing, which cannot be conventionally performed.SOLUTION: An UIM card 14 transmits a request for activating or deactivating a CLF 13 to a baseband processor 11 by utilizing a response to a command received from the baseband processor 11. The baseband processor 11 instructs the CLF 13 to be activated or deactivated, and the CLF 13 transits from a deactivated state to an activated state, or transits from the activated state to the deactivated state.SELECTED DRAWING: Figure 4

Description

  The present invention relates to the technical field of a mobile terminal equipped with a UIM (User Identity Module) card and a CLF (ContactLess Front-end), and in particular to a technology for activating or deactivating the CLF.

  A UIM card capable of loading a plurality of applications has virtually become a de facto standard of products conforming to the Java (registered trademark) Card specification and the Global Platform (registered trademark) specification. Also, in recent years, the UIM card is an NFC (Near Field Radio Communication) compatible UIM card provided with an interface of SWP (Single Wire Protocol) in addition to an interface (IF) conforming to ISO 7816 used in conventional IC cards. (Hereinafter, unless otherwise specified, the UIM card in this specification means an NFC compatible UIM card). On the other hand, NFC compatible portable terminals have become widespread also in portable terminals. The NFC compatible portable terminal (hereinafter, unless otherwise specified, the portable terminal in the present specification means an NFC compatible portable terminal) incorporates an IC chip called CLF, and an interface of SWP with the UIM card Connected through. In addition, an antenna used for contactless communication is connected to the CLF, and the CLF is in charge of contactless communication protocol processing. Thereby, for the noncontact IC card reader, the combination of the UIM card and the portable terminal behaves as if it were a single noncontact IC card. Thus, the function of acting as a noncontact IC card is called a card emulation mode. On the other hand, when the CLF outputs a carrier wave, the combination of the UIM card and the portable terminal can operate as a noncontact IC card reader and communicate with the noncontact IC card. Thus, the function of acting as a noncontact IC card reader is called a reader mode. When the reader mode function is used, for example, when logging in to a specific service (such as an SNS site) from a browser on a portable terminal, the reader mode is activated and the user ID is read from a noncontact IC card (for example, an ID card) It becomes possible to authenticate using the authentication data generated in the UIM card using the user ID. Further, Patent Document 1 discloses a system in which a portable terminal set in reader mode reads a code recorded in an IC tag, directly accesses a server, and obtains a desired image or the like from a URL corresponding to the code. There is.

JP, 2014-085757, A

  By the way, in non-contact communication between the portable terminal and the non-contact IC card, normally, even if there is a security problem on the opposite side, the exchange of a series of commands and responses is not interrupted halfway until the end To be executed. In the exchange of such commands and responses, for example, when a security problem occurs on the opposite side when the portable terminal is in the reader mode, if the CLF mounted on the portable terminal can be deactivated, It is possible to immediately stop contactless communication, and can be used more safely. As a method of deactivating the CLF, an interruption operation by the user of the portable terminal and an interruption by the CLF itself can be considered. However, in the interruption operation by the user, if the user makes a wrong determination, there is a possibility that the communication state may be inconsistent. On the other hand, since the CLF can not understand the command exchanged in the non-contact communication, there is a problem that it can not determine when it should be interrupted.

  In addition, mobile phones such as smartphones generally need to reduce power consumption in order to extend usage time. Therefore, while non-contact communication is not performed also in the CLF, transition to the power saving mode can be performed, and I / O between the CLF and the UIM card can be deactivated. When the portable terminal is in the card emulation mode and the I / O between the CLF and the UIM card is inactivated, the I / O is activated when the CLF detects a carrier wave from the noncontact IC card reader. And send commands to the UIM card. However, in the reader mode, the UIM card needs to request the CLF to start the reader mode, and this request is transmitted from the UIM card to the CLF through I / O between the CLF and the UIM card. At present, I / O between the CLF and the UIM card can only activate the CLF, so the reader mode can not be started if the I / O is inactivated, so the CLF There is a problem that it is not possible to shift to the power saving mode so that a request for starting the reader mode can be accepted from the UIM card anytime. In addition, even though the reader mode is supported, there is a problem that when there is a CLF transitioning to the power saving mode, the reader mode can not be started at the timing requested by the user.

  Therefore, the present invention has been made in view of such problems and the like, and an electronic information storage medium capable of activating or deactivating CLF at an appropriate timing which could not be achieved conventionally, an IC card, an activation It is an object of the present invention to provide a computerized control method and program.

  In order to solve the above problems, the invention according to claim 1 is an IC chip having a function of performing non-contact communication between the first communication means for communicating with a controller of a portable terminal and the outside. And second communication means for communicating with the IC chip to be activated or deactivated in response to an instruction from the controller, the first communication means receiving the first communication means received from the controller. A request to activate or deactivate the IC chip is sent to the controller using a first response to the command of.

  The invention according to claim 2 is the electronic information storage medium according to claim 1, wherein the first communication means receives the first command from the controller while the IC chip is activated. The second communication unit transmits a second command corresponding to the first command to the IC chip, receives a second response to the second command from the IC chip, and receives the second response from the IC chip. The first communication unit may transmit the first response indicating a request to inactivate the IC chip to the controller when it is determined that the second response received is incorrect. .

  The invention according to claim 3 is the electronic information storage medium according to claim 1, in which the first command notifies the electronic information storage medium that a predetermined time has elapsed by a timer function of the portable terminal. And the first communication means indicates a request to deactivate the IC chip when the first command is received from the controller while the IC chip is activated. Sending a response to the controller.

  The invention according to claim 4 is the electronic information storage medium according to claim 1, wherein the first communication means receives the first command from the controller when the IC chip is inactivated. In the case, the first response indicating a request to activate the IC chip is transmitted to the controller.

  The invention according to claim 5 is an IC chip having a function of performing non-contact communication between a first communication unit that communicates with a controller of a portable terminal and non-contact communication with the outside, and an instruction from the controller And second communication means for performing communication with the IC chip activated or deactivated according to the first communication means, wherein the first communication means receives a first response to a first command received from the controller. And transmitting to the controller a request to activate or deactivate the IC chip.

  The invention according to claim 6 is an activation control method executed by a computer, comprising a first communication step of performing communication with a controller of a portable terminal and a function of performing non-contact communication between the outside and the first communication step. An IC chip having a second step of communicating with the IC chip to be activated or deactivated according to an instruction from the controller, and in the first communication step, the controller A request for activating or deactivating the IC chip is transmitted to the controller using a first response to a first command received from the controller.

  The invention according to claim 7 is an IC chip having a function of performing non-contact communication between a computer and a first communication unit that communicates with a controller of a portable terminal and the outside, the controller Function as a second communication unit for performing communication with the IC chip to be activated or deactivated in response to an instruction from the controller, the first communication unit being a first communication command for the first command received from the controller A request for activating or deactivating the IC chip is sent to the controller using a response.

  According to the present invention, CLF can be activated or deactivated at an appropriate timing that has not been possible conventionally.

It is a block diagram showing an example of outline composition of a personal digital assistant concerning this embodiment. It is a figure showing the example of hardware constitutions of contact type IC chip 14a. FIG. 18 is a sequence diagram showing an example of a process flow when a Proactive command is transmitted and received between the UIM card 14 and the baseband processor 11. When CLF13 is activated, it is a sequence diagram which shows an example of the flow of a process at the time of inactivating CLF13 by fraud. When CLF13 is activated, it is a sequence diagram showing an example of the flow of processing at the time of inactivating CLF13 by progress of predetermined time. When CLF13 is inactive, it is a sequence diagram which shows an example of the flow of a process at the time of activating CLF13 by reception of the command which requires non-contact communication.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiment described below is an embodiment when the present invention is applied to a portable terminal.

[1. Configuration of Mobile Terminal and Outline of Function]
First, with reference to FIG. 1 etc., the structure and function outline | summary of the portable terminal which concern on this embodiment are demonstrated. FIG. 1 is a block diagram showing an example of a schematic configuration of a portable terminal according to the present embodiment. As shown in FIG. 1, the portable terminal 1 is an NFC compatible terminal, and is configured to include a baseband processor 11, a battery 12, a CLF 13, a UIM card 14 and the like. In addition, although not illustrated, the mobile terminal 1 includes a mobile wireless communication unit, an operation / display unit, a storage unit, and the like. Moreover, the portable terminal 1 has a timer function. The mobile wireless communication unit has a wireless communication function using a mobile communication network. Mobile communication networks include, for example, telephone circuit switched networks and data communication packet switched networks for connecting to the Internet. The mobile wireless communication unit performs wireless communication with the nearest base station via an antenna (not shown), and communicates with other portable terminals and servers via the base station and the mobile communication network. Do. The operation / display unit includes, for example, an input function for receiving an operation instruction from a user's finger or a pen, and a touch panel having a screen for displaying information. The operation / display unit receives an operation instruction from the user, and outputs a signal corresponding to the operation instruction to the baseband processor 11. The storage unit is configured of, for example, a non-volatile memory, and stores an operating system (hereinafter referred to as “OS”), an application program, a browser program, and the like. The portable terminal 1 may include an audio processing unit and a speaker. Note that a mobile phone, a smartphone, or the like can be applied to the mobile terminal 1.

  The baseband processor 11 has a function as a controller that controls the mobile terminal 1. The baseband processor 11 executes various processes in response to an operation instruction from the user of the mobile terminal 1 (for example, an operation instruction via the operation / display unit). Also, the baseband processor 11 can activate or deactivate the CLF 13. Also, the baseband processor 11 functions as a browser by executing a browser program, and communicates with a specific server via a mobile wireless communication unit and a mobile communication network according to an instruction from a user. The battery 12 is a power source of the mobile terminal 1 and can charge the power for operating the mobile terminal 1 from the outside. The baseband processor 11 supplies (power supplies) the power supplied from the battery 12 to the CLF 13 and the UIM card 14.

  The CLF 13 is a noncontact IC chip having a function of performing noncontact communication defined by the NFC standard, and although not shown, a CPU (Central Processing Unit), a non-volatile memory for storing a predetermined program (eg, flash memory) Etc.), RAM (Random Access Memory) for temporarily storing data, I / O port (SWIO (Single Wire protocol Input / Output)) having an interface with the UIM card 14 (SWP interface), and a baseband processor It has an I / O port etc. which takes on the interface between it and 11. In addition, an antenna 13a for performing noncontact communication with the outside (a noncontact IC card or a noncontact IC card reader) in the noncontact communication field is connected to the CLF 13, and the CLF 13 is It is responsible for contactless communication protocol processing. When the portable terminal 1 is in the reader mode, the CLF 13 performs noncontact communication with an external noncontact IC card. On the other hand, when the portable terminal 1 is in the card emulation mode, the CLF 13 performs noncontact communication with an external noncontact IC card reader.

  In addition, regarding contactless communication, the CLF 13 has a communicable state and a communicable state. The communicable state is referred to as "activation state", and the non-communicable state is referred to as "deactivation state". The CLF 13 is activated (activated) or deactivated (deactivated) in response to an instruction from the baseband processor 11 (that is, transition from the activation state to the deactivation state, or from the activation state to the activation state) Transition to That is, only the baseband processor 11 can activate or deactivate the CLF 13 from the outside.

  The UIM card 14 is one of a Universal Integrated Circuit Card (UICC), and mounts a contact-type IC chip 14a whose function is expanded based on a conventional SIM (Subscriber Identity Module) card. The UIM card 14 is an NFC compatible UIM card, and is an example of the IC card of the present invention. The contact IC chip 14a is an example of the electronic information storage medium of the present invention. The contact type IC chip 14a may be configured to be directly incorporated on the circuit board of the portable terminal 1. For example, as an eUICC (Embedded Universal Integrated Circuit Card), the contact type IC chip 14a may be easily removed or replaced from the portable terminal 1. It may be integrally mounted with the portable terminal 1 so that it can not be done.

  FIG. 2 is a diagram showing an example of the hardware configuration of the contact type IC chip 14a. As shown in FIG. 2, the contact type IC chip 14 a includes a CPU 141, a RAM 142, a ROM (Read Only Memory) 143, a non-volatile memory 144, and an I / O circuit 145. The CPU 141 is a processor (computer) that executes various programs stored in the ROM 143 or the nonvolatile memory 144, and is an example of a first communication unit and a second communication unit in the present invention. For example, a flash memory is applied to the non-volatile memory 144. A part of various programs and data stored in the non-volatile memory 144 may be stored in the ROM 143. The nonvolatile memory 144 may be an “Electrically Erasable Programmable Read-Only Memory”. In the present embodiment, the programs stored in either the ROM 143 or the non-volatile memory 144 include an OS, a program of the present invention, an application program, and the like. The program of the present invention may be incorporated in the OS or may be installed as middleware independent of the OS.

  Here, the application program is a program for realizing the function of an application instance (referred to as an “application”) in the UIM card 14. An application is a module in which an application program or the like is expanded in a memory and installed (mounted) in an executable state. For example, when the application in the UIM card 14 transmits a reader mode start request to the CLF 13, the CLF 13 outputs a carrier wave. Thus, if the application can detect the opposing noncontact IC card (if there is a response from the noncontact IC card), the application transmits a command from the application to the noncontact IC card via the CLF 13 and the response via the CLF 13 It becomes possible to receive.

  The I / O circuit 145 is provided with eight terminals C1 to C8 defined by ISO 7816 or the like. Alternatively, the I / O circuit 145 is provided with six terminals except for the terminals C4 and C8. The C1 terminal is a power supply terminal (VCC), and the C5 terminal is a ground terminal (GND). The C2 terminal is a reset terminal (RST), and is used to input a reset signal of the interface with the baseband processor 11. The C3 terminal is a clock terminal (CLK), and is used to input a clock for interfacing with the baseband processor 11. The C7 terminal is a terminal that carries an interface with the baseband processor 11, and is used for communication (T = 0 protocol communication) between the UIM card 14 and the baseband processor 11. The C6 terminal is a terminal (SWIO) that carries an interface with the CLF 13 and is used for communication with the CLF 13 (SWP / HCI (Host Controller Interface) communication).

  The CPU 141 performs communication (communication by the second communication means) with the CLF 13 via the C6 terminal of the I / O circuit 145, and between the baseband processor 11 via the C7 terminal of the I / O circuit 145 Communication (communication by the first communication means) can be performed. In the present embodiment, the CPU 141 uses the response (one example of the first response) to the command (one example of the first command) received from the baseband processor 11 to request the activation or deactivation of the CLF 13. Transmit to baseband processor 11. As a result, the baseband processor 11 instructs the CLF 13 to activate or deactivate. As a result, CLF 13 transitions from the non-activation state to the activation state, or transitions from the activation state to the non-activation state.

  Here, as a response to the command received from the baseband processor 11, for example, a Proactive command which is one of CAT (Card Application Toolkit) functions defined in the ETSI TS 102 223 may be applied. The Proactive command is a request from the UIM card 14 to the baseband processor 11 (or a server on the network) for various operation requests (for example, a request for displaying specified characters on the mobile terminal 1, a request for playing a sound, etc.) It is a command for transmitting information.

  FIG. 3 is a sequence diagram showing an example of the flow of processing when a Proactive command is transmitted and received between the UIM card 14 and the baseband processor 11. In the example of FIG. 3, the baseband processor 11 transmits a predetermined command to the UIM card 14 (step S1). When the UIM card 14 receives a command from the baseband processor 11, a response indicating "91XX" as a response to the command (hereinafter referred to as "SW91XX") when a predetermined condition is satisfied in processing according to the command. Are transmitted to the baseband processor 11 (step S2). Here, "91XX" is a status word (SW) indicating a request for transmission of a Proactive command. That is, "91XX" indicates that the UIM card 14 wants to send a Proactive command. Moreover, the following (i)-(iii) are mentioned as an example in the case of satisfy | filling the said predetermined conditions.

  (i) In the case where the CLF 13 is activated, it is determined that fraud is detected (detection of fraud) from the response to the command transmitted from the UIM card 14 to the CLF 13 according to the predetermined command (for example, a command indicating an authentication request) If

  (ii) When the CLF 13 is activated, a command for notifying the UIM card 14 that the predetermined command received from the baseband processor 11 has passed a predetermined time by the timer function of the portable terminal 1 (hereinafter referred to as “ In the case of "notify command"

  (iii) In the case where the CLF 13 is inactivated, the above predetermined command received from the baseband processor 11 is a command requiring non-contact communication by the CLF 13

  When the baseband processor 11 receives the SW 91XX from the UIM card 14, it transmits a FETCH command to the UIM card 14 (step S3). When the UIM card 14 receives the FETCH command from the baseband processor 11, as a response to the FETCH command, the UIM card 14 transmits a Proactive command and a response indicating “9000” (normal end) (hereinafter referred to as “SW 9000”) as the baseband processor 11 It transmits to (step S4). In the present embodiment, the Proactive command indicates a request to activate or deactivate CLF 13. That is, the UIM card 14 transmits a request for activating or deactivating the CLF 13 to the baseband processor 11 using a response to a predetermined command received from the baseband processor 11. When the baseband processor 11 receives the Proactive command and the SW 9000 from the UIM card 14, the baseband processor 11 performs a process according to the Proactive command, and transmits a TERMINAL RESPONSE command indicating the result of the process to the UIM card 14 (step S5). In the present embodiment, in the processing according to the Proactive command, the baseband processor 11 transmits an instruction to activate or deactivate the CLF 13 to the CLF 13 and receives a response from the CLF 13. Upon receiving the TERMINAL RESPONSE command from the baseband processor 11, the UIM card 14 transmits SW 9000 to the baseband processor 11 as a response to the TERMINAL RESPONSE command (step S6).

[2. Operation when activating or deactivating CLF 13]
Next, the operation for activating or deactivating the CLF 13 will be described separately in Examples 1 to 3.

Example 1
Example 1 is an example of deactivating CLF 13 by detecting fraud when CLF 13 is activated. FIG. 4 is a sequence diagram showing an example of the flow of processing when the CLF 13 is inactivated due to fraud when the CLF 13 is activated.

  In FIG. 4, the baseband processor 11 transmits a command indicating an authentication request (hereinafter, referred to as an “authentication command”) to the UIM card 14 (step S11). When the UIM card 14 receives the authentication command (an example of the first command) from the baseband processor 11, the UIM card 14 transmits a reader mode start request to the CLF 13 (step S12).

  When the CLF 13 receives the reader mode start request from the UIM card 14, the CLF 13 outputs a carrier wave (step S13). Thus, the response output from the contactless IC card that has received the carrier wave in the field of contactless communication is transmitted to the UIM card 14 via the CLF 13 (steps S14 and S15). Thereby, the UIM card 14 detects the noncontact IC card.

  When detecting the noncontact IC card, the UIM card 14 transmits an authentication command (an example of a second command corresponding to the first command) to the CLF 13 (step S16). When the CLF 13 receives the authentication command from the UIM card 14, the CLF 13 transmits the authentication command to the noncontact IC card (that is, transmits it by noncontact communication) (step S17). When receiving the authentication command from the UIM card 14, the noncontact IC card reads out information (for example, an ID, an expiration date, etc.) necessary for authentication, and transmits a response including the information to the CLF 13 (step S18). When the CLF 13 receives a response from the noncontact IC card, the CLF 13 transmits the response to the UIM card 14 (step S19).

  When the UIM card 14 receives a response (an example of a second response to the second command) from the CLF 13, the UIM card 14 performs an authentication process (step S20). When the UIM card 14 determines that the authentication is OK in the authentication process, the UIM card 14 transmits a response indicating the authentication OK (a response to the authentication command) to the baseband processor 11 (not shown). On the other hand, when the UIM card 14 determines that authentication NG (that is, from the response to the authentication command is incorrect) in the authentication process (for example, if the IDs do not match or the expiration date has passed, it is determined to be incorrect) (that is, SW91XX is transmitted to the baseband processor 11 as a response to the authentication command in the case of the above (i) in the case where the predetermined condition is satisfied (step S21). Note that the judgment of fraud may be made, for example, when there is an unintended response. Specifically, (i) there is no response in a predetermined time, and (ii) an illegal terminal or IC card is detected (the individual information of the IC card or IC card reader is acquired by the response of the authentication command) In the case of verification by the UIM card 14) or (iii) in the case of obtaining a random number in the authentication process, it is determined that the same value as the previously received random number is returned.

  When the baseband processor 11 receives the SW 91 XX from the UIM card 14, the baseband processor 11 transmits a FETCH command to the UIM card 14 (step S 22). When the UIM card 14 receives the FETCH command from the baseband processor 11, as described above, the Proactive command indicating the request to deactivate the CLF 13 (hereinafter referred to as "deactivation request") and the SW 9000 baseband processor 11 It transmits to (step S23). When the baseband processor 11 receives the Proactive command indicating the deactivation request and the SW 9000, the baseband processor 11 transmits an instruction to deactivate the CLF 13 (hereinafter, referred to as “deactivation instruction”) to the CLF 13 (step S24). When the CLF 13 receives the deactivation instruction from the baseband processor 11, the CLF 13 transmits a response indicating deactivation to the baseband processor 11 (step S25). Thus, the CLF 13 is inactivated.

  When the baseband processor 11 receives a response indicating inactivation from the CLF 13, the baseband processor 11 transmits a TERMINAL RESPONSE command to the UIM card 14 (step S26). Upon receiving the TERMINAL RESPONSE command from the baseband processor 11, the UIM card 14 transmits an SW 9000 to the baseband processor 11 (step S27).

  According to the first embodiment, when the UIM card 14 determines that the response is a fraudulent response from the response received from the CLF 13 (a response to the authentication command), the response indicating the CLF 13 inactivation request is transmitted from the UIM card 14 to the baseband processor 11. In the case where a security problem occurs on the noncontact IC card side, the CLF 13 can be inactivated to secure security.

(Example 2)
Example 2 is an example when CLF 13 is inactivated, and CLF 13 is inactivated after lapse of a predetermined time. FIG. 5 is a sequence diagram showing an example of the flow of processing when the CLF 13 is inactivated as the predetermined time elapses when the CLF 13 is activated. The second embodiment is applicable to both the case where the portable terminal 1 is in the reader mode and the case where it is in the card emulation mode. In the second embodiment, the elapsed time is measured by the timer function of the portable terminal 1.

  In FIG. 5, the baseband processor 11 monitors the measured elapsed time, and when a predetermined time (for example, 30 seconds) has elapsed from a reference time (for example, a time when an operation instruction is issued from the user), Is sent to the UIM card 14 (step S31). The notification command is transmitted at predetermined time intervals. When the UIM card 14 receives a notification command (an example of a first command) from the baseband processor 11 (that is, in the case of the above (ii) as a case where a predetermined condition is satisfied), as a response to the notification command, The SW 91XX is transmitted to the baseband processor 11 (step S32). The process of step S33 to step S38 is the same as the process of step S22 to step S27 shown in FIG.

  According to the second embodiment, when the notification command is received from the baseband processor 11 in the UIM card 14, the response indicating the deactivation request of the CLF 13 is transmitted from the UIM card 14 to the baseband processor 11 through transmission and reception of the FETCH command. Since it is configured to be transmitted to the terminal device, the CLF 13 can be deactivated at an appropriate timing to shift to the power saving mode.

  In the second embodiment, an example in which the baseband processor 11 transmits a communication command to the UIM card 14 when a predetermined time has elapsed using the timer function of the portable terminal 1 has been described, but an example similar to this is described. The baseband processor 11 is configured to transmit a STATUS command to the UIM card 14 at predetermined time intervals (for example, every 30 seconds) in order to confirm whether the UIM card 14 is actually inserted into the portable terminal 1. There is. In this case, when the number of receptions of the STATUS command is set in the UIM card 14 (for example, 5 times) and the UIM card 14 receives the STATUS command after the set number of times, SW91XX is received as a response of the STATUS command. It may be configured to transmit to the baseband processor 11 (send in step S32 in FIG. 5), and also in this case, the processing in step S33 to step S38 in FIG. 5 is performed. Even with this configuration, the CLF 13 can be deactivated at an appropriate timing to shift to the power saving mode.

(Example 3)
The third embodiment is an example of activating the CLF 13 by receiving a command requiring non-contact communication, when the CLF 13 is inactivated. FIG. 6 is a sequence diagram showing an example of a process flow when activating the CLF 13 by receiving a command requiring non-contact communication when the CLF 13 is inactivated.

  In FIG. 6, the baseband processor 11 transmits a command requiring non-contact communication to the UIM card 14 (step S41). When the UIM card 14 receives a command (an example of a first command) requiring non-contact communication from the baseband processor 11 when the CLF 13 is inactivated (that is, a case where a predetermined condition is satisfied) In the case of (iii) above, the SW 91XX is transmitted to the baseband processor 11 as a response to the command (step S42). Here, the UIM card 14 determines from the voltage level of the C6 terminal of the I / O circuit 145 that the CLF 13 is in the inactive state.

  When the baseband processor 11 receives the SW 91 XX from the UIM card 14, the baseband processor 11 transmits a FETCH command to the UIM card 14 (step S 43). When the UIM card 14 receives the FETCH command from the baseband processor 11, the UIM card 14 transmits, to the baseband processor 11, a Proactive command indicating a request for activating the CLF 13 (hereinafter referred to as "activation request") and SW 9000 (step S44). . When the baseband processor 11 receives the Proactive command indicating the activation request and the SW 9000, the baseband processor 11 transmits an instruction to activate the CLF 13 (hereinafter, referred to as "activation instruction") to the CLF 13 (step S45). When the CLF 13 receives the activation instruction from the baseband processor 11, it transmits a response indicating the activation to the baseband processor 11 (step S46). Thus, the CLF 13 is activated.

  When the baseband processor 11 receives a response indicating activation from the CLF 13, the baseband processor 11 transmits a TERMINAL RESPONSE command to the UIM card 14 (step S47). Upon receiving the TERMINAL RESPONSE command from the baseband processor 11, the UIM card 14 transmits an SW 9000 to the baseband processor 11 (step S48). Thereafter, the processes of steps S49 to S52 are performed as in the processes of steps S11 to S15 shown in FIG.

  According to the third embodiment, when a command requiring non-contact communication is received from the baseband processor 11 when the CLF 13 in the UIM card 14 is inactivated, transmission and reception of the FETCH command are performed, and the non-CLF 13 is not transmitted. Since the response indicating the activation request is transmitted from the UIM card 14 to the baseband processor 11, the CLF 13 can be rapidly activated even while the CLF 13 is in the inactive state.

  As described above, according to the above embodiment, the UIM card 14 transmits a request to activate or deactivate the CLF 13 to the baseband processor 11 using a response to a command received from the baseband processor 11. Therefore, CLF can be activated or deactivated at an appropriate timing that has not been possible conventionally.

  In the above embodiment, the UIM card 14 is configured to make a request to activate or deactivate the baseband processor 11 using the Proactive command. The card 14 may be configured to request the baseband processor 11 to be activated or deactivated.

1 Mobile terminal 11 Base band processor 12 Battery 13 CLF
14 UIM Card 141 CPU
142 RAM
143 ROM
144 Nonvolatile Memory 145 I / O Circuit

Claims (7)

First communication means for communicating with a controller of the portable terminal;
A second communication unit configured to perform communication with an IC chip having a function of performing contactless communication with an external device, the IC chip being activated or deactivated according to an instruction from the controller;
Equipped with
The first communication means transmits, to the controller, a request to activate or deactivate the IC chip using a first response to a first command received from the controller. Information storage medium. When the first command is received from the controller by the first communication unit while the IC chip is activated, the second communication unit transmits a second command corresponding to the first command. Send to the IC chip and receive a second response to the second command from the IC chip,
When it is determined that the second response received from the IC chip is incorrect, the first communication unit transmits the first response indicating a request to deactivate the IC chip to the controller. An electronic information storage medium according to claim 1, characterized by: The first command is a command for notifying the electronic information storage medium that a predetermined time has elapsed by the timer function of the portable terminal.
When the first communication means receives the first command from the controller while the IC chip is activated, the first response indicating the request to inactivate the IC chip is sent to the controller. The electronic information storage medium according to claim 1, wherein the electronic information storage medium is transmitted.   The first communication unit sends the first response indicating a request to activate the IC chip to the controller when the first command is received from the controller while the IC chip is inactivated. The electronic information storage medium according to claim 1, wherein the electronic information storage medium is transmitted. First communication means for communicating with a controller of the portable terminal;
A second communication unit configured to perform communication with an IC chip having a function of performing contactless communication with an external device, the IC chip being activated or deactivated according to an instruction from the controller;
Equipped with
The first communication means transmits a request to activate or deactivate the IC chip to the controller using a first response to a first command received from the controller. card. A computer implemented activation control method comprising:
A first communication step of communicating with the controller of the portable terminal;
A second step of performing communication with an IC chip having a function of performing non-contact communication with the outside, the IC chip being activated or deactivated according to an instruction from the controller;
Including
In the first communication step, a request for activating or deactivating the IC chip is transmitted to the controller using a first response to a first command received from the controller. Activation control method. Computer,
First communication means for communicating with a controller of the portable terminal;
An IC chip having a function of performing non-contact communication with an external device, which functions as a second communication unit for performing communication with the IC chip that is activated or deactivated according to an instruction from the controller ,
The program is characterized in that the first communication means transmits a request to activate or deactivate the IC chip to the controller using a first response to a first command received from the controller. .

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