JP2012033163A - Communication apparatus, communication method and communication processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication apparatus, a communication method and a communication processing program that can avoid occurrence of communication errors due to inability to respond to command signals, adverse influences on account settlement processing and the like while giving due consideration to the efficiency of communication.SOLUTION: A communication apparatus capable of communicating with another communication apparatus via an interface in accordance with a plurality of protocols is so configured that, when having received a prescribed signal from such another communication apparatus, makes choice between a timer response that is given when a timer-set time has come and a consecutive response that is given immediately without waiting for the timer-set time for a response to the signal, on the basis of the content of the signal, and executes the chosen response to such another communication apparatus.

Description

  The present invention relates to a communication technique between a contact IC chip and a non-contact IC chip.

  Conventionally, in Japan, contactless IC cards used for contactless services such as transportation settlement, credit settlement, and authentication by employee ID card have been widely used, most of which are FeliCa (registered trademark) communication methods. Is adopted. Furthermore, in Japan, mobile terminals equipped with non-contact type IC chips are prevalent before overseas (for example, Osaifu-Keitai (registered trademark)). Also in the non-contact type IC chip mounted on such a portable terminal, the FeliCa communication method is adopted because of compatibility with the conventional non-contact type IC card. Such a portable terminal is also equipped with a UIM (User Identity Module) on which a conventional contact IC chip is mounted. However, a non-contact IC chip for UIM and FeliCa (hereinafter referred to as “FeliCa chip”). And are completely separated. Therefore, when changing the model of a portable terminal, the FeliCa chip becomes disposable, and it is necessary to transfer information to the new FeliCa chip of the portable terminal.

  On the other hand, in foreign countries, Type-A and Type-B communication systems defined in ISO 14443, which is an international standard for contactless IC card technology, are standard. In foreign countries, non-contact services such as traffic payments and credit payments are being tested for mounting non-contact IC chips on mobile terminals equipped with UIMs. The IC chip employs CLF (Contact Less Front-end) defined by NFC (Near Field Communication) standards. In CLF, in addition to the Type-A and Type-B communication methods, the FeliCa communication method is also supported as Type-F. Such a CLF is configured to transmit data received via an antenna from a reader / writer (hereinafter referred to as “R / W”) in a non-contact field to a UIM via an interface. The UIM is mounted with a non-contact interface software program (hereinafter referred to as “non-contact interface software”) for processing data received from the CLF. Note that SWP (Single Wire Protocol) is adopted for the interface between CLF and UIM in the standard specification (ETSI TS 102.613) established by ETSI (European Telecommunications Standards Institute). And the interface between CLF and UIM is activated after SWIO (Single Wire protocol Input / Output) is activated (ACTIVATED), then SHDLC (Simplified High Level Data Link Control Procedure) protocol or CLT (Contact Less Tunneling) protocol. Is defined in the standard specification so that signals (command signals, etc.) are transmitted and received using.

  As described above, a mobile terminal equipped with CLF (hereinafter referred to as an “NFC compatible terminal”) differs from a mobile terminal equipped with a FeliCa chip because non-contact interface software is installed in the UIM. When changing the model, it is not necessary to transfer the information of the non-contact interface software by changing the UIM. Therefore, an NFC-compatible terminal has an advantage that it can continuously use a non-contact service without exchanging a UIM and requiring special processing. Since NFC is also adopted by GSMA, the implementation of a contactless interface of NFC compatible terminals has become a global standard. Therefore, in Japan, it is expected that the non-contact interface software for FeliCa that is installed in the FeliCa chip will be installed in the UIM, so that the mobile terminal with a built-in FeliCa chip will shift to an NFC compatible terminal. Is done.

  By the way, when the NFC compatible terminal enters the non-contact field, the CLF receives a field on signal (Field ON) from the R / W, and subsequently receives a polling command signal (Polling command) from the R / W. It is supposed to receive. The polling command signal is a command signal for determining which communication method (Type-A, Type-B, or Type-F) is to be used for communication. Then, it is necessary to return a polling response signal (Polling response) to the R / W as a response to the polling command signal (for example, that it is Type-A). In the case of Type-A or Type-B, the standard specification stipulates that the CLF returns a polling response signal to the R / W.

  However, in the case of Type-F (FeliCa), the standard specification does not stipulate that the CLF returns a polling response signal (the CLF does not support the polling response function). The CLF transfers the received polling command signal to the UIM, and returns a polling response signal returned from the UIM (that is, the UIM is in charge of response processing to the polling command signal) to the R / W. Here, since the transfer of the polling command signal from the CLF to the UIM is not supported by the SHDLC protocol, the CLT protocol used between the R / W and the CLF is used as it is. That is, a polling command signal is transferred from the CLF to the UIM using CLT LLC (Logical Link Control).

  On the other hand, when the NFC compatible terminal enters the non-contact field with the SWIO other than deactivated (DEACTIVATED), and the CLF receives a field-on signal from the R / W, the CLF is fielded by the SHDLC protocol. The standard specification stipulates that the ON signal is transmitted to the UIM (transmitted using SHDLC LLC). Then, the CLF receives an acknowledgment signal for the field-on signal from the UIM using the SHDLC protocol. It is recommended that the acknowledgment by the SHDLC protocol be performed at the maximum time interval (5 ms) defined in the standard specification. This is because the SHDLC command signal can be transmitted continuously, so if an affirmative response is sequentially returned for each successive command signal, communication traffic is generated and the processing content increases accordingly. Therefore, the processing speed is lowered, so that the communication efficiency is improved by waiting for 5 ms as the maximum time and returning an affirmative response at a time. As described above, for example, Patent Literature 1 proposes a technique for returning a response to each command signal when a predetermined waiting time is exceeded (this is referred to as “timer response”).

  When the NFC compatible terminal enters the non-contact field with the SWIO being inactive, the UIM is considered to have entered the non-contact field when the SWIO is activated by ACT LLC. There is no need to send a field-on signal to the UIM.

JP-A-8-69511

  By the way, there is a possibility that the CLF receives a polling command signal from the R / W between the transmission of the field-on signal to the UIM and the acknowledgment from the UIM. At this time, since the CLF is still waiting for an acknowledgment according to the SHDLC protocol, the polling command signal received from the R / W is discarded. This is because the CLF cannot mix the SHLDC protocol and the CLT protocol, and therefore the communication using the CLT protocol cannot be started unless the communication using the SHLDC protocol is completed.

  Therefore, in the case of R / W that transmits a polling command signal only once, there is a problem that a communication error occurs at this point. On the other hand, even in the case of the R / W that retransmits the polling command signal, there is a problem that the retransmission interval of the polling command signal is as low as about 10 ms. In particular, in high-speed communication such as passing through a gate in traffic payments, payment within 0.1 seconds is required. Therefore, it is necessary for the service to be unable to respond to the first polling command signal.

  Therefore, the present invention has been made in view of such problems and the like, while considering communication efficiency, it is impossible to respond to a command signal, a communication error occurs, payment processing is affected, etc. It is an object to provide a communication device, a communication method, and a communication processing program that can be avoided.

  In order to solve the above-described problem, the invention according to claim 1 is a communication device capable of communicating with another communication device through a plurality of protocols via an interface, the predetermined communication from the other communication device. When a signal is received, based on the content of the signal, a timer response that responds after the time set by the timer arrives, and a sequential response that responds immediately without waiting for the time set by the timer And a response execution unit that executes a response selected by the selection unit with respect to the other communication device.

  According to a second aspect of the present invention, in the communication device according to the first aspect, the communication device is a contact IC chip, the other communication device is a non-contact IC chip, and the non-contact IC chip. When the field-on signal is received from the non-contact type IC chip by entering the non-contact field, the selection unit selects the sequential response as a response to the field-on signal, and the response execution unit includes: A sequential response selected by the selection unit is executed for the non-contact type IC chip.

  According to a third aspect of the present invention, in the communication device according to the second aspect, the response execution unit is configured to respond to a polling command signal received from the non-contact type IC chip after executing the sequential response to the field-on signal. It is characterized by executing a response.

  According to a fourth aspect of the present invention, in the communication device according to the third aspect, the field-on signal is received from the non-contact type IC chip by an SHDLC protocol, and the polling command signal is transmitted by the CLT protocol. It is received from a non-contact type IC chip.

  According to a fifth aspect of the present invention, in the communication device according to the second or third aspect, a mode in which one of a timer response mode for executing the timer response and a sequential response mode for executing the sequential response is set. When the timer response mode is being set and the field-on signal is received from the non-contact type IC chip, the mode setting unit sets the timer response mode to the sequential response mode. The selection means selects the sequential response as a response to the field-on signal according to the sequential response mode switched by the mode setting means.

  According to a sixth aspect of the present invention, in the communication device according to the fifth aspect, when a response to the polling command signal received from the non-contact type IC chip is executed after the sequential response to the field-on signal is executed. The mode setting means switches the setting from the sequential response mode to the timer response mode.

  A seventh aspect of the present invention is the communication apparatus according to any one of the first to sixth aspects, wherein the communication apparatus is a UIM (User Identity Module) on which a contact IC chip is mounted. And

  The invention according to claim 8 is a communication method in a communication device capable of communicating with another communication device through a plurality of protocols via an interface, wherein the communication device is predetermined from the other communication device. A timer response that responds after the time set by the timer arrives based on the content of the signal, and a sequential response that responds immediately without waiting for the time set by the timer, Selecting one of these as a response to the signal, and the communication device executing the selected response to the other communication device.

  According to a ninth aspect of the present invention, there is provided a communication processing program for receiving a computer in a communication apparatus capable of communicating with another communication apparatus using a plurality of protocols via an interface, and receiving a predetermined signal from the other communication apparatus. In response to the content of the signal, either a timer response that responds after the time set by the timer arrives or a sequential response that responds immediately without waiting for the time set by the timer It is characterized by functioning as selection means for selecting one as a response to the signal, and response execution means for executing the response selected by the selection means for the other communication device.

  According to the present invention, when the communication device receives a predetermined signal from another communication device, the timer response that responds after the time set by the timer arrives based on the content of the signal, and the timer Since one of the sequential responses that respond immediately without waiting for the time set by the above is selected as a response to the signal and the selected response is executed with respect to the other communication device, the communication efficiency is improved. It is possible to avoid the occurrence of a communication error and the influence on the settlement process.

It is a block diagram which shows the example of a schematic structure of the portable terminal which concerns on this embodiment. (A) is a block diagram showing a schematic configuration example of the UIM 12 according to the present embodiment. (B) is a figure which shows an example of the protocol stack | stuck of the data transmitted / received from the C6 terminal which bears an interface with CLF11. It is a conceptual diagram which shows the basic operation | movement of the portable terminal 1 which concerns on this embodiment. It is a flowchart which shows the response process of UIM12 which concerns on a 1st Example. It is a conceptual diagram which shows operation | movement of the portable terminal 1 which concerns on a 2nd Example. It is a flowchart which shows the response process of UIM12 which concerns on a 2nd Example. It is a conceptual diagram which shows operation | movement of the conventional NFC corresponding | compatible terminal.

  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 mobile terminal.

  First, with reference to FIG. 1, the configuration and functional overview of the mobile terminal according to the present embodiment will be described.

  FIG. 1 is a block diagram illustrating a schematic configuration example of a mobile terminal according to the present embodiment. As shown in FIG. 1, the mobile terminal 1 includes a CLF 11 (an example of another communication apparatus), a UIM 12 (an example of a communication apparatus), a baseband processor 13, and the like. For example, a mobile phone, a PDA, or the like including operation keys, a display, a speaker, a mobile communication unit, and the like can be applied to the mobile terminal 1.

  As described above, the CLF 11 is a non-contact type IC chip that performs non-contact communication defined by the NFC standard. Although not shown, the CLF 11 is a non-illustrated CPU (Central Processing Unit) that performs signal processing and a non-volatile storage that stores a predetermined program. A memory (such as a flash memory), a volatile memory (such as a RAM) that temporarily stores data, an I / O port (SWIO) that interfaces with the UIM 12, and an interface with the baseband processor 13 An I / O port and the like are provided. The CLF 11 is connected to an antenna 11a for transmitting / receiving various signals to / from the R / W 2 in a non-contact field. In the present embodiment, it is assumed that R / W2 adopts the FeliCa communication method.

  On the other hand, the UIM 12 is one of UICCs (Universal Integrated Circuit Cards) and is equipped with a contact IC chip whose functions are expanded based on a conventional SIM (Subscriber Identity Module). FIG. 2A is a block diagram illustrating a schematic configuration example of the UIM 12 according to the present embodiment. As shown in FIG. 2A, the UIM 12 includes a CPU (Central Processing Unit) 121 that performs signal processing, a ROM (Read Only Memory) 122 that stores predetermined data and programs, and a RAM (Random Access that temporarily stores data). Memory) 123, a non-volatile memory (for example, flash memory or EEPROM) 124 for storing predetermined data and programs, an I / O port (input / output port) 125, and the like. The UIM 12 is provided on the IC card base B and is mounted on the portable terminal 1 as an IC card. As shown in FIG. 2A, the I / O port 125 has eight terminals C1 to C8 defined by ISO / IEC7816 or the like. Here, 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 for an interface with the baseband processor 13. The C3 terminal is a clock terminal (CLK) and is used to input a clock for an interface with the baseband processor 13. The C7 terminal is a terminal that serves as an interface with the baseband processor 13 and is used for communication between the UIM 12 and the baseband processor 13. The C6 terminal is a terminal that serves as an interface between the CLF 11 and is used for communication between the UIM 12 and the CLF 11. Note that SWP is applied to the interface between the CLF 11 and the UIM 12 as described above, and it is possible to communicate with the CLF 11 using the SHDLC protocol and the CLT protocol. FIG. 2B is a diagram illustrating an example of a protocol stack of data transmitted / received from a C6 terminal that serves as an interface with the CLF 11. In the example shown in FIG. 2B, the upper layer differs depending on the non-contact interface software, and the present invention does not depend on the upper layer. The present embodiment is applied to SHDLC. It is the SHDLC that holds the mode (sequential response mode, timer response mode, which will be described later) and has a code for determining the mode.

  The CPU 121 of the UIM 12 functions as mode setting means, selection means, and response execution means in the present invention. The non-volatile memory 124 of the UIM 12 stores personal information such as a telephone number and a subscriber ID, electronic money balance information, and the above-described contactless interface software.

  The baseband processor 13 is responsible for communication (communication performed via a mobile communication network or the Internet) of the mobile terminal 1 and executes various processes in response to operation instructions from the user of the mobile terminal 1 via operation keys. To do.

  Next, the operation of the mobile terminal 1 according to the present embodiment will be described with reference to FIG.

  FIG. 3 is a conceptual diagram showing the basic operation of the mobile terminal 1 according to the present embodiment. 3A shows the signal transmission / reception timing between R / W 2 and CLF 11, and FIG. 3B shows the signal transmission / reception timing between CLF 11 and UIM 12.

  In the following description, when the mobile terminal 1 enters a non-contact field with the SWIO other than deactivated (DEACTIVATED), the CLF 11 receives a field-on signal from the R / W 2 that employs the FeliCa communication method. Is assumed. As a possibility that the mobile terminal 1 enters the non-contact field when the SWIO is in a state other than inactive, for example, a mobile terminal that does not support the inactive state (the mobile terminal 1 that is always in the active state) And the case where the user of the portable terminal 1 operates the operation key and confirms the balance on the portable terminal 1 and then makes a settlement on the R / W 2. Here, when the user operates the operation key to input a balance confirmation instruction, the baseband processor 13 does not directly acquire the balance information from the UIM 12, but the balance information recorded in the UIM 12 via the CLF 11. To get to. Therefore, since the CLF 11 activates the SWIO at this time, the SWIO is activated immediately after the user confirms the balance.

  When the CLF 11 receives a field-on signal (Field ON) from the R / W 2, the CLF 11 transmits a field-on signal (SHDLC Field ON) to the UIM 12 (transmitted using SHDLC LLC) according to the SHDLC protocol. On the other hand, when the UIM 12 receives a field-on signal (SHDLC Field ON) from the CLF 11, as shown in FIG. 3B, in order to respond sequentially to the SHDLC protocol acknowledgment instead of the maximum time interval (5 ms). Then, an acknowledgment signal (SHDLC acknowledgment) is immediately (immediately) returned to the CLF 11 by the SHDLC protocol. Here, the sequential response means a response immediately after receiving a signal without waiting for a time set by a timer. As a result, as shown in FIG. 3A, the SIM 12 can return an affirmative response to the CLF 11 at a timing before the CLF 11 receives the polling command signal (Polling command) from the R / W 2. Therefore, the CLF 11 does not discard the polling command signal (Polling Command) received from the R / W 2 and transmits the polling command signal (CLT Polling command) to the UIM 12 using the CLT protocol (transmits using CLT LLC). Can do.

  However, in the case of sequentially responding to all signals according to the SHDLC protocol, the communication efficiency decreases as described above. Therefore, as described in the first and second embodiments below, when the UIM 12 receives a predetermined signal from the CLF 11, it is based on the content of the signal (for example, whether it is a field-on signal). Then, either one of the timer response that responds after the time set by the timer arrives and the sequential response that responds immediately without waiting for the time set by the timer is selected as a response to the signal, and To execute the selected response.

(First Example)
First, the operation of the mobile terminal 1 according to the first embodiment will be described with reference to FIG.

  FIG. 4 is a flowchart showing the response process of the UIM 12 according to the first embodiment.

  In the first embodiment, communication between the CLF 11 and the baseband processor 13 and communication between the CLF 11 and the R / W 2 occur at the same time, such as when the user passes the gate while checking the balance on the mobile terminal 1. This is a form in the case where it is not considered.

  In the case of the first embodiment, the UIM 12 starts the processing shown in FIG. 4 when receiving a signal from the CLF 11, and determines whether or not the received signal is a field on signal (SHDLC Field ON) according to the SHDLC protocol (step S1). S1) When it is determined that the field-on signal is based on the SHDLC protocol (step S1: YES), the sequential response is selected as a response to the field-on signal (SHDLC Field ON), as shown in FIG. Then, an acknowledgment signal (SHDLC acknowledgment) is immediately returned to the CLF 11 (the selected sequential response is executed) (step S2). On the other hand, when it is determined that the signal is not a field-on signal according to the SHDLC protocol (step S1: NO), the timer response is selected, and the UIM 12 receives the maximum time interval (5 ms) set by the timer from the reception of the signal. Then, an acknowledgment signal (SHDLC acknowledgment) is returned to the CLF 11 (the selected timer response is executed) (step S3).

(Second embodiment)
Next, with reference to FIG.5 and FIG.6, operation | movement of the portable terminal 1 which concerns on a 2nd Example is demonstrated.

  FIG. 5 is a conceptual diagram showing the operation of the mobile terminal 1 according to the second embodiment, and FIG. 6 is a flowchart showing the response process of the UIM 12 according to the second embodiment.

  In the second embodiment, the communication between the CLF 11 and the baseband processor 13 and the communication between the CLF 11 and the R / W 2 occur at the same time, such as when the user passes the gate while checking the balance on the portable terminal 1. It is a form when considering what to do.

  In the case of the second embodiment, the UIM 12 has an acknowledgment mode flag for setting one of a sequential response mode for executing a sequential response and a timer response mode for executing a timer response. When the processing shown in FIG. 6 is started due to the occurrence of a predetermined event, the UIM 12 first sets the timer response mode by initializing the acknowledgment mode flag to “1” (step S11).

  Next, the UIM 12 determines whether or not a signal is received from the CLF 11 (step S12). If it is determined that no signal is received from the CLF 11 (step S12: NO), the UIM 12 proceeds to step S13 and performs a predetermined process. The process is performed and the process returns to step S12. On the other hand, when the UIM 12 determines that the signal is received from the CLF 11 (step S12: YES), the UIM 12 determines whether the received signal is an SHDLC signal (whether it is a signal according to the SHDLC protocol). (Step S14). If the UIM 12 determines that the received signal is an SHDLC signal (step S14: YES), the UIM 12 proceeds to step S15, and the received signal is not an SHDLC signal (that is, a CLT signal). ) (Step S14: NO), the process proceeds to step S19.

  In step S15, the UIM 12 determines whether or not the received SHDLC signal is a field-on signal (SHDLC Field ON), and determines that the signal is a field-on signal (SHDLC Field ON) (that is, a timer response). When the mode is being set and a field-on signal (SHDLC Field ON) is received (step S15: YES), the process proceeds to step S16 and is not a field-on signal (SHDLC Field ON) (for example, balance confirmation) If it is determined (command signal) (step S15: NO), the process proceeds to step S18.

  In step S16, the UIM 12 changes the setting from the timer response mode to the sequential response mode as shown in FIG. 5 by changing the acknowledgment mode flag from “1” to “0”, and the switched sequential response mode is changed. And sequentially returns an acknowledgment signal (SHDLC acknowledgment) to the CLF 11 (executes the selected sequential response) (step S17), and returns to step S12.

  On the other hand, in step S18, the UIM 12 returns an acknowledgment signal (SHDLC acknowledgment) to the CLF 11 in the acknowledgment mode currently set, and returns to step S12. For example, as shown in FIG. 5, in the case of an affirmative response to the balance confirmation command signal (SHDLC balance confirmation) received immediately after the SHDLC affirmative response, since the sequential response mode is being set, the affirmative response signal (SHDLC affirmative response) Is immediately returned to the CLF 11 (the selected sequential response is executed). On the other hand, as shown in FIG. 5, when the polling response signal (CLT Polling response) has been returned, since the timer response mode is being set, affirmation occurs after the maximum time interval (5 ms) set by the timer arrives. A response signal (SHDLC affirmative response) is returned to the CLF 11 (the selected timer response is executed).

  On the other hand, in step S19, the UIM 12 determines whether or not the received CLT signal is a polling command signal (CLT Polling command). If the UIM 12 determines that it is not a polling command signal (CLT Polling command) (step S19). S19: NO), a response according to the received CLT signal is made (step S20), and the process returns to step S12. On the other hand, if the UIM 12 determines that the polling command signal is a CLT Polling command (step S19: YES), the UIM 12 returns a polling response signal (CLT Polling response) to the CLF 11 as shown in FIG. S21). When the response to the polling command signal (CLT Polling command) is executed in this way, the UIM 12 switches the setting from the sequential response mode to the timer response mode by changing the acknowledgment mode flag from “0” to “1”. (Step S22), the process returns to Step S12. That is, the UIM 12 sequentially cancels the response mode after transmitting a polling response signal (CLT Polling response).

  As described above, according to the embodiment, when the UIM 12 receives a predetermined signal from the CLF 11, the timer response and the sequential response are sequentially determined based on the content of the signal (for example, whether it is a field-on signal). When either UIM 12 receives a field-on signal (SHDLC Field ON) from the CLF 11, the response is sequentially affirmed. Selected and executed as a response. Therefore, the CLF 11 can receive an acknowledgment for the field-on signal (SHDLC Field ON) from the UIM 12 at a timing before the CLF 11 receives the polling command signal (Polling command) from the R / W 2. However, the failure to respond to the polling command signal (Polling Command) from the R / W 2 makes it possible to avoid the occurrence of a communication error and the influence on the settlement process. Further, when the UIM 12 receives a signal other than the field-on signal (SHDLC Field ON) from the CLF 11, the normal timer response is selected and executed, so that it is possible to avoid a decrease in communication efficiency. .

  In the above embodiment, the case where the present invention is applied to the UIM mounted on the mobile terminal 1 has been described as an example. However, a plurality of protocols (for example, USB (Universal Serial Bus), etc.) are provided via the interface. Thus, the present invention can be applied to other communication devices that can communicate with other communication devices.

1 Mobile terminal 2 R / W
11 CLF
12 UIM
13 Baseband processor

Claims (9)

A communication device capable of communicating with other communication devices through a plurality of protocols via an interface,
When a predetermined signal is received from the other communication device, a timer response that responds after the time set by the timer arrives based on the content of the signal and waits for the time set by the timer Selection means for selecting any one of a sequential response that immediately responds as a response to the signal;
Response execution means for executing the response selected by the selection means for the other communication device;
A communication apparatus comprising: The communication device is a contact IC chip, and the other communication device is a non-contact IC chip.
When a field-on signal is received from the non-contact type IC chip due to the non-contact type IC chip entering a non-contact field, the selection unit selects the sequential response as a response to the field-on signal,
The communication apparatus according to claim 1, wherein the response execution unit executes a sequential response selected by the selection unit with respect to the non-contact type IC chip.   The communication apparatus according to claim 2, wherein the response execution unit executes a response to a polling command signal received from the non-contact type IC chip after executing the sequential response to the field-on signal.   The field-on signal is received from the non-contact type IC chip according to an SHDLC protocol, and the polling command signal is received from the non-contact type IC chip according to a CLT protocol. Communication equipment. A mode setting means for setting one of a timer response mode for executing the timer response and a sequential response mode for executing the sequential response;
In the case where the timer response mode is being set, when a field-on signal is received from the non-contact IC chip, the mode setting means switches the setting from the timer response mode to the sequential response mode,
4. The communication apparatus according to claim 2, wherein the selection unit selects the sequential response as a response to the field-on signal according to the sequential response mode switched by the mode setting unit.   When a response to the polling command signal received from the non-contact type IC chip is executed after execution of the sequential response to the field-on signal, the mode setting means switches from the sequential response mode to the timer response mode. The communication apparatus according to claim 5, wherein the setting is switched. The communication apparatus according to any one of claims 1 to 6, wherein the communication apparatus is a UIM (User Identity Module) on which a contact IC chip is mounted. A communication method in a communication device capable of communicating with another communication device using a plurality of protocols via an interface,
When the communication device receives a predetermined signal from the other communication device, based on the content of the signal, a timer response that responds after the time set by the timer arrives, and the timer is set by the timer Selecting any one of a sequential response that responds immediately without waiting for a time as a response to the signal;
The communication device executing the selected response to the other communication device;
A communication method comprising: A computer in a communication device capable of communicating with another communication device through a plurality of protocols via an interface,
When a predetermined signal is received from the other communication device, a timer response that responds after the time set by the timer arrives based on the content of the signal and waits for the time set by the timer Selection means for selecting any one of a sequential response that immediately responds as a response to the signal, and
A communication processing program causing a function to execute a response selected by the selection unit to the other communication device.

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