JP2015164237A - communication device, control method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To establish a communication path using a radio interface between a communication device and a partner device with a simple procedure.SOLUTION: A communication device which includes a first function for constituting a radio network and a second function for participating in a radio network constituted by another communication device has a function of starting a predetermined function when detecting an electromagnetic wave from the other device. The communication device controls to start the first function when the predetermined function is started according to the detection of the electromagnetic wave.

Description

  The present invention relates to a startup control technique for a communication device.

  NFC (Near Field Communication) is defined as a communication standard related to the near field communication technology. NFC defines three communication modes used between devices (see Non-Patent Document 1). The first is a “card emulation function” that can be used as a non-contact IC card. The second is a “reader / writer function” that can read and write a non-contact IC card. The third is an “inter-terminal communication function” that performs bidirectional communication between NFC-compatible devices.

  In NFC, a procedure in which a communication device on the connected device (link side) responds to polling from the communication device on the connection request side is defined (see Non-Patent Document 2). Is done. In Non-Patent Document 2, when operating as a connected device, a mode that operates with power supplied from within the device (active mode) and a mode that operates with power supplied from the opposing device (induced electromotive force). (Passive mode) is defined.

  Further, Non-Patent Documents 3 to 4 describe that a card emulation function is realized by connecting to a UICC (Universal Integrated Circuit Card) used in a mobile phone or the like in response to the proximity of an opposing device. Japanese Patent Application Laid-Open No. 2004-228688 describes a method of returning the proximity wireless communication (NFC) interface of its own device from the sleep state or turning on the circuit power when the proximity of the opposite device is detected. Non-Patent Documents 5 to 6 describe a method for passing communication parameter setting information of a high-speed wireless communication interface (wireless LAN or the like) included in the same device to the opposite device via the proximity wireless communication interface. Has been.

  In recent years, when NFC is implemented in a mobile communication device, in addition to the NFC interface, a high-speed wireless communication (wireless LAN, Bluetooth (registered trademark)) interface is often implemented. For this reason, in the communication device (smartphone or the like) having such a configuration, in order to simplify the parameter setting for the high-speed wireless interface, “Connection Handover” for setting the parameter via the NFC communication channel has been standardized. Yes. The Connection Handover defines a “Static Handover” method that uses a combination of an NFC card emulation function and a reader / writer function. The static handover method is a method for passing communication parameters for a high-speed wireless interface from a device on the card emulation side to a device on the reader / writer side.

JP 2010-273356 A

NFC Forum, NFC Digital Protocol Technical Specification (Ver. 1.0) ISO / IEC 18092 (NFCIP-1) ETSI, TS 102 613 ETSI, TS 102 622 NFC Forum, Connection Handover Technical Specification (Ver. 1.2) Wi-Fi Alliance, Wi-Fi Simple Configuration Technical Specification (Ver. 2.02)

  Even when communication parameters are set by the static handover method in response to the proximity of communication devices, the user has to perform an operation for establishing a communication path using a high-speed wireless interface.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique for establishing a communication path using a wireless interface between a communication apparatus and a partner apparatus by a simple procedure.

  The communication apparatus is a communication apparatus having a communication unit including a first function that configures a wireless network and a second function that participates in a wireless network configured by another communication apparatus, from the other apparatus Control means for starting a predetermined function when an electromagnetic wave is detected, and control for controlling the communication means to start the first function when the predetermined function is started in response to detection of the electromagnetic wave Means.

  According to the present invention, a communication path using a wireless interface between a communication device and a partner device can be established with a simple procedure.

The figure which shows the 1st example of the flow which establishes the communication path by a high-speed wireless interface on the occasion of proximity | contact of communication apparatuses. The figure which shows the 2nd example of the flow which establishes the communication path by a high-speed wireless interface triggered by the proximity of communication apparatuses. The block diagram which shows the function structural example of a communication apparatus. The block diagram which shows the function structural example of another communication apparatus. The flowchart which shows the 1st example of a starting process. The flowchart which shows the 2nd example of starting processing. The flowchart which shows the 3rd example of starting processing. The flowchart which shows the 4th example of starting processing.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. First, prior to showing the flow of processing according to the present embodiment, a use case in which the processing according to the present embodiment is executed and the configuration of each device that executes the processing will be described. After that, several processing examples according to the present embodiment will be described.

(Use Case)
FIG. 1 and FIG. 2 show an example of a flow of establishing a communication path by WLAN triggered by the proximity of communication apparatuses having both near field wireless communication (NFC) and high speed wireless communication (WLAN) interfaces. In each of the following embodiments, a communication apparatus (Digital Still Camera, hereinafter referred to as DSC) 101 operates with NFC card emulation, and a partner apparatus (smartphone) 102 operates as an NFC reader / writer. Then, the DSC 101 delivers the parameter information for WLAN connection to the smartphone 102 in accordance with NFC Static Handover.

  The use case 1 shown in FIG. 1 is a use case in which the WLAN connection topology set when the DSC 101 and the smartphone 102 are in proximity is a direct connection. First, the DSC 101 detects the proximity of the counterpart device (smartphone 102) by detecting the electromagnetic field generated by the smartphone 102 (Step 1). Then, the DSC 101 connects to the smartphone 102 by NFC, and transfers the WLAN setting information stored in the DSC 101 itself to the smartphone 102 (Step 2). Thereafter, the DSC 101 establishes a WLAN communication path with the smartphone 102 and performs direct communication with the WLAN (Step 3).

  On the other hand, the use case 2 shown in FIG. 2 is a use case in which the WLAN connection topology that is set when the DSC 101 and the smartphone 102 are in proximity is an indirect connection via a WLAN AP (Access Point) 201. In this case, the DSC 101 reads WLAN setting information (Credential) from the AP 201 in advance and stores the information (Step 0). Thereafter, the DSC 101 detects the proximity of the counterpart device (smartphone 102) by detecting the electromagnetic field generated by the smartphone 102 (Step 1). Then, the DSC 101 connects to the smartphone 102 by NFC, and transfers the Credential read and stored from the AP to the smartphone 102 (Step 2). At this time, the Credential received by the smartphone 102 is information for connecting to the AP 201. Similarly, the DSC 101 can be connected to the AP 201 using this Credential. Therefore, after that, the DSC 101 can establish communication with the smartphone 102 via the AP 201 to perform communication (Step 3).

(Configuration of communication device)
Next, functional configuration examples of the communication device (DSC 101) and other communication devices (smartphone 102, AP 201) will be described. FIG. 3 is a block diagram illustrating a functional configuration example of the DSC 101, and FIG. 4 is a block diagram illustrating a functional configuration example of the smartphone 102 or the AP 201.

  The DSC 101 includes, for example, an NFC antenna 301, an NFC communication control LSI 302, a host processor 303, a WLAN antenna 304, and a WLAN communication control LSI 305. The NFC communication control LSI 302 is an LSI (Large Scale Integration) for controlling NFC communication. The NFC communication control LSI 302 includes, for example, a Contact Frontend (wireless control unit) 321, an NFC Mode Switch (switching unit) 322, and a Host Interface (host interface unit) 323. The Contactless Frontend 321 is responsible for radio control, and the NFC Mode Switch 322 is responsible for changing the operation mode. The Host Interface 323 is an interface with an external processor. In addition, the NFC communication control LSI 302 detects the power (inductive electromotive force) supplied from the counterpart device by using a Contact Frontend (wireless control unit) 321, and outputs a wakeup signal 306.

  The host processor 303 operates with a power supply (battery) (not shown) in the DSC 101 and controls the entire apparatus. In the host processor 303, 330 is an NFC LSI Driver (NFC driver unit) that controls the NFC communication control LSI 302. Reference numeral 331 denotes an NFC common middleware (NFC control unit) that controls each NFC operation mode. Reference numeral 332 denotes NFC Applications (NFC application unit) that controls the service to be executed. Reference numeral 333 denotes WLAN Applications (WLAN application unit) that executes services including wireless parameter setting and the like. Reference numeral 334 denotes a WLAN common middleware (NFC control unit) that controls each WLAN operation mode. Reference numeral 335 denotes a WLAN LSI driver (WLAN driver unit) that controls the WLAN communication control LSI 305.

  Reference numeral 336 denotes an access monitor (monitoring unit) that monitors memory access from other devices to the memory for contactless IC card service. The Access Monitor (monitoring unit) 336 determines whether the information content returned in response to the memory access from the counterpart device is a predetermined information content, that is, a predetermined memory access. Reference numeral 337 denotes a wakeup pattern storage area (a function block activation condition information storage area) that stores information associated with a function block in the own apparatus to be activated in response to a predetermined memory access monitored by the monitoring unit 336. . Reference numeral 338 denotes a card service (card service control unit) that controls various types of control in the IC card service. In the IC card service by the card emulation function, access (read / write) to the target information is executed by receiving designation of the logical identifier (NDEF: NFC Data Exchange Format) of the target information from another device.

  Reference numeral 339 denotes a flash memory area (storage unit) which is a storage location of information. For example, setting information such as a parameter for WLAN connection is stored in the Flash Memory Area. Reference numeral 340 denotes a host controller (host control unit) that manages communication with an external processor. The host processor 303 in the sleep state to which the wakeup signal from the NFC communication control LSI 302 is input starts up the NFC communication control LSI 302 in the card emulation mode (307). After the activation, the WLAN communication control LSI 305 is activated and set as a BSS Creator or a BSS Joiner using parameters for WLAN connection (308). Here, the BSS Creator is a function on the side of configuring a wireless network by WLAN, and the DSC 101 transmits a beacon for WLAN connection when activated as a BSS Creator. BSS Joiner is a function on the side that participates in a wireless network based on WLAN configured by another communication device. The DSC 101 has both of these functions.

  The WLAN communication control LSI 305 includes, for example, a WLAN RF Block 351 that controls wireless control, a WLAN MAC 352 that controls packet communication, and a Host Interface 353 that is an interface with an external processor.

  The smartphone 102 or the AP 201 includes, for example, an NFC antenna 401, an NFC communication control LSI 402, a host processor 403, a WLAN antenna 404, and a WLAN communication control LSI 405. The NFC communication control LSI 402 includes, for example, a Contact Frontend (radio control unit) 421 that controls radio control, and an NFC Mode Switch (switching unit) 422 that controls operation mode change. The NFC communication control LSI 402 further includes a Host Interface 423 that is an interface with an external processor, and a Host Controller (host control unit) 424 that manages communication with the external processor.

  The host processor 403 is a processor that controls the entire apparatus. Reference numeral 431 denotes an NFC Device Driver (driver unit) that controls the NFC communication control LSI 402. Reference numeral 432 denotes an NFC common middleware (NFC control unit) that performs control for each operation mode of the proximity wireless communication. Reference numeral 433 denotes NFC Applications (NFC application unit) that controls service to be executed. Reference numeral 434 denotes WLAN Applications (WLAN application unit) for executing services including wireless parameter setting and the like. Reference numeral 435 denotes a WLAN common middleware (WLAN control unit) that controls each WLAN operation mode. Reference numeral 436 denotes a WLAN device driver (driver unit) that controls the WLAN communication control LSI 405.

  The WLAN communication control LSI 405 includes, for example, a WLAN RF Block 451 that controls wireless control, a WLAN MAC 452 that controls packet communication, and a Host Interface 453 that is an interface with an external processor.

(Process flow)
Subsequently, an example of a flow of processing executed when the above-described communication device (DSC 101) approaches the counterpart device (smart phone 102) will be described. In each example, first, the DSC 101 in the power saving mode (the host CPU is in the sleep state / WLAN I / F function unit is stopped, etc.) and the smartphone 102 in the operating state are close to each other, or the power button of the DSC 101 is pressed. The Then, the DSC 101 shifts to the operation mode and starts the WLAN I / F activation / connection parameter setting control. Note that when the operating smartphone 102 and the operating DSC 101 are brought close to each other, the processing according to each example described below is not executed, and processing according to a normal NFC communication application service is performed.

((Processing Example 1))
This example is an example according to use case 1 of FIG. FIG. 5 is a flowchart showing a flow of activation processing of the DSC 101 in this example. When the user brings the DSC 101 and the smartphone 102 close to each other within the effective area of the induced electromotive force supplied by the smartphone 102 (for example, within several centimeters), the NFC communication control LSI 302 detects the induced electromotive force in the DSC 101. The NFC communication control LSI 302 that has detected the induced electromotive force outputs a Wakeup signal 306 for starting the host processor 303 using the power supply in the DSC 101 to the host processor 303. Then, the host processor 303 is activated in response to receiving the Wakeup signal (S501). After the host processor 303 is activated in S501, the DSC 101 refers to the parameters for WLAN connection stored in the Flash Memory Area 339 (S502). The DSC 101 then activates the WLAN communication control LSI 305 by using the WLAN connection parameters referenced in S502, setting the operation mode at the time of WLAN I / F activation as the BSS Creator mode (308, S503).

  Thus, in this example, the host processor is activated by bringing the smartphone 102 that activated NFC close to the DSC 101. Then, when the host processor is activated upon proximity, the sleep state DSC 101 can be activated with the WLAN I / F in the BSS Creator mode. Accordingly, since the network is automatically configured as the BSS Creator according to whether the electromagnetic wave from the counterpart device is detected, for example, the user does not select whether to operate the DSC 101 as the BSS Creator. . For this reason, it becomes possible to establish a communication path more easily.

  In the above description, the case where the host processor is activated in response to detection of electromagnetic waves from another communication device has been described, but the present invention is not limited to this. For example, when a predetermined function other than the host processor is activated in response to detection of electromagnetic waves, the DSC 101 may activate the WLAN communication control LSI 305 with the operation mode at the time of WLAN I / F activation as the BSS Creator mode. . In each of the following processing examples, the DSC 101 may execute WLAN communication control when a predetermined function other than the host processor is activated in response to detection of electromagnetic waves.

((Processing example 2))
This example relates to both use case 1 in FIG. 1 and use case 2 in FIG. Also in this example, as in the above-described processing example 1, the DSC 101 activates the WLAN I / F in the BSS Creator mode when the communication apparatuses approach each other. FIG. 6 shows a flow of start processing executed by the DSC 101 in this example. Since the processing of S601 and S602 is the same as the processing of S501 and S502 in Processing Example 1, description thereof will be omitted.

  In this example, it is determined whether or not the parameters for WLAN connection stored in the Flash Memory Area 339 referred to in S602 are those generated by the DSC 101 itself (S603). Here, when this parameter is generated by the DSC 101 itself, the DSC 101 before shifting to the Sleep state was operating the WLAN I / F in the BSS Creator mode as in the case of FIG. This is considered to be the case. That is, in this case, it is considered that the DSC 101 was operating as an AP before shifting to the sleep state. For this reason, when it is determined in S603 that the parameter is generated by the DSC 101 itself (YES in S603), the DSC 101 activates the WLAN communication control LSI 305 as a BSS Creator as in S603 of the processing example 1 ( S605).

  On the other hand, when the parameter is not generated by the DSC 101 itself in S603, the DSC 101 before transitioning to the sleep state operates the WLAN I / F in the BSS Joiner mode as in the case of FIG. It is thought that. That is, in this case, it is considered that the DSC 101 was operating as a STA before shifting to the sleep state. In this case, the WLAN connection parameters stored in the flash memory area 339 are parameters generated by the AP 201. Therefore, in order to set the operation mode at the time of WLAN I / F activation to the BSS Creator mode, parameters for WLAN connection for operating as an AP are necessary. For this reason, if it is determined in S603 that the parameter is not generated by the DSC 101 itself (NO in S603), the DSC 101 newly generates a parameter for WLAN connection (S604). Then, the DSC 101 activates the WLAN communication control LSI 305 by using the WLAN connection parameter generated in S604 and setting the operation mode at the time of WLAN I / F activation as the BSS Creator mode (308, S605).

  Thus, also in this example, first, the DSC 101 activates the host processor in response to detection of electromagnetic waves from other communication devices. At this time, if it is considered that the DSC 101 has shifted to the Sleep state while retaining the WLAN connection parameters for operating as the STA, the DSC 101 newly generates the WLAN connection parameters. As a result, the DSC 101 starts the WLAN I / F in the BSS Creator mode in response to proximity to another communication apparatus, and easily configures a wireless network with the other communication apparatus using a wireless LAN. be able to. Therefore, for example, since it is not necessary for the user to perform work for connecting the smartphone 102 to the AP 201, the communication path can be more easily established.

((Processing Example 3))
In the processing examples 1 and 2, an example in which the DSC 101 starts the host processor 303 in response to detection of electromagnetic waves due to the proximity of another communication device has been described. However, the DSC 101 may start the host processor 303 from the sleep state by pressing a power button, for example, other than when electromagnetic waves are detected by other communication devices. Therefore, in this example, a process at the time of starting the DSC 101 corresponding to a case where the DSC 101 is started due to a factor other than the proximity of another communication device such as pressing of a power button will be described. FIG. 7 is a flowchart showing a flow of activation processing of the DSC 101 according to this example.

  First, when the DSC 101 activates the host processor 303 for some reason (S701), the DSC 101 refers to the activation factor (S702). Then, the DSC 101 determines whether the activation factor is the proximity of another communication device (detection of electromagnetic waves) or another factor such as pressing of the power button (S703). If the DSC 101 determines that the activation factor is the proximity of another communication device (YES in S703), the DSC 101 performs the WLAN communication control LSI 305 in the BSS Creator mode by the same processing as S602 to S605 in Processing Example 2. Start up (S704 to S707).

  On the other hand, if the DSC 101 determines that the activation factor is not close to another communication device (eg, pressing of the power button) (NO in S703), the process proceeds to S708. The DSC 101 refers to the parameters for WLAN connection (S708), and determines whether the parameters are generated by the DSC 101 itself (S709). When the parameter for WLAN connection is the setting information generated by the DSC 101 itself, as described in the processing example 2, the DSC 101 before transitioning to the sleep state operates the WLAN I / F in the BSS Creator mode. It is thought. Note that the determination in S709 is performed when the activation factor is not the proximity of another communication device, for example, the power button is pressed. For this reason, in this case, it is considered that the user does not expect the DSC 101 to start the WLAN communication control LSI 305 with the operation mode as the BSS Creator mode. That is, in this case, it is considered that the user does not expect establishment of a communication path using the high-speed wireless interface when the DSC 101 is activated. For this reason, if it is determined in S709 that the parameter is generated by the DSC 101 itself (YES in S709), the DSC 101 does not activate the WLAN communication control LSI 305. As a result, since the WLAN communication setting that the user does not request is not performed in the DSC 101, the power consumption of the DSC 101 can be reduced.

  On the other hand, if the parameter for WLAN connection is not the setting information generated by the DSC 101, the DSC 101 before shifting to the sleep state is operating the WLAN I / F in the BSS Joiner mode as described in the processing example 2. It is thought. In this case, the Flash Memory Area 339 stores parameters for WLAN connection generated by the AP 201. Here, when the activation factor is not the proximity of another communication device but the power button is pressed, the user activates the WLAN communication control LSI 305 with the operation mode as the BSS Creator mode for the DSC 101. Is not expected. In addition, when the DSC 101 operates the WLAN I / F in the BSS Joiner mode before transitioning to the sleep state, and the DSC 101 is activated by pressing the power button or the like, the user confirms that the DSC 101 operates again as a STA. It is thought that he is expecting. Therefore, if it is determined in S709 that the parameter is not generated by the DSC 101 itself (NO in S709), the DSC 101 activates the WLAN communication control LSI 305 in the BSS Joiner mode (308, S710). In this case, the DSC 101 participates in the network configured by the AP 201 using the stored WLAN connection parameters.

  Thus, in this example, when the DSC 101 activates the host processor due to the proximity of another communication device, the DSC 101 activates the WLAN I / F in the BSS Creator mode. On the other hand, when the DSC 101 activates the host processor due to other factors such as pressing of the power button, the DSC 101 determines whether the parameters for WLAN connection stored in the Flash Memory Area 339 are generated by the DSC 101 itself. . Then, the DSC 101 activates the WLAN I / F in the BSS Joiner mode or does not activate the WLAN I / F according to the determination result. As a result, the DSC 101 can perform control so as to configure or participate in a wireless network based on the wireless LAN or not activate the wireless LAN according to the cause of starting the host processor and the state before Sleep. As a result, the DSC 101 is configured to be requested by the user simply by bringing the other communication device and the DSC 101 close to each other, or by pressing the power button, etc. A communication path by LAN can be established.

((Processing Example 4))
In the processing examples 1 to 3, the example is described on the assumption that the parameters for WLAN connection are stored in the Flash Memory Area 339 in advance. However, when the host processor 303 is activated, the parameters for WLAN connection may not be saved. For example, this is a case where the power of the DSC 101 is turned off during the update and storage of the WLAN connection parameters. In this case, the storage of the WLAN connection parameters may not be completed in the Flash Memory Area 339. Therefore, in this example, a description will be given of a processing example for dealing with a case where no parameters for WLAN connection are stored when the host processor 303 is activated. FIG. 8 is a flowchart showing the flow of activation processing of the DSC 101 in this example. Compared to the processing example 3, it is determined whether the WLAN connection parameters are stored before determining whether the stored WLAN connection parameters are generated by the DSC 101 (S806, S811). S805, S810) are added. In this example, the description of the same processing as that of the processing example 3 is omitted, and the description will be given focusing on the difference portion.

  If the DSC 101 determines that the activation factor is the proximity of another communication device (YES in S803), the DSC 101 refers to the parameters for WLAN connection (S804) and determines whether the parameters are stored in the Flash Memory Area 339 ( S805). If the DSC 101 determines that the parameter is stored in S805 (YES in S805), the DSC 101 performs the same processing as S705 to S707 in Processing Example 3 (S806 to S808).

  On the other hand, when the DSC 101 determines that no parameter is stored (NO in S805), it newly generates a parameter for WLAN connection (S807). Then, the DSC 101 sets the operation mode to the BSS Creator mode using the parameters generated in S807 and activates the WLAN communication control LSI 305 (308, S808).

  In addition, when the DSC 101 determines in S803 that the activation factor is not the proximity of another communication device (NO in S803), the DSC 101 also determines whether the parameter for WLAN connection is stored in the Flash Memory Area 339 (S809). If the DSC 101 determines that the parameter is stored (YES in S809), the DSC 101 performs the same processing as S709 and S710 in Processing Example 3 (S811, S812). On the other hand, if the DSC 101 determines that no parameter is stored (NO in step S809), the DSC 101 does not activate the WLAN communication control LSI 305.

  Thus, in this example, when the DSC 101 activates the host processor 303 due to the proximity of another communication device, it activates the WLAN communication control LSI 305 as a BSS Creator even if the WLAN connection parameters are not stored. be able to. Further, the DSC 101 does not activate the WLAN I / F when the host processor is activated due to other factors such as pressing the power button, and the WLAN connection parameter is not stored, so that power consumption can be reduced. . As a result, the DSC 101 is configured to be requested by the user simply by bringing the other communication device and the DSC 101 close to each other, or by pressing the power button, etc. A communication path by LAN can be established.

<< Other Embodiments >>
In the above-described embodiment, an example in which near field communication (Near Field Communication defined in ISO / IEC 18092) operating with induced electromotive force from a partner apparatus is used as an interface for near field communication (NFC) is described. However, the present invention is not limited to this, and even if the above-described method is applied to a P2P proximity wireless communication medium such as Transfer Jet, IrDA, or the like in which the power required by the interface unit varies depending on the communication mode and protocol to be selected. Good.

  In each of the above examples, the DSC 101 illustrated in the example of FIG. 3 activates the host processor 303 in response to detecting the proximity of the smartphone 102 (electromagnetic waves from the smartphone 102). However, the present invention is not limited to this configuration. When the proximity from the smartphone 102 is detected, the DSC 101 may first operate the NFC communication control LSI 402 as a card emulation function. When the DSC 101 receives a predetermined memory access such as reading a predetermined WLAN connection parameter from the smartphone 102, the DSC 101 starts the host processor 303 and starts the WLAN I / F activation / connection parameter setting control. May be.

  The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

Claims (11)

A communication apparatus having communication means including a first function that configures a wireless network and a second function that participates in a wireless network configured by another communication apparatus,
An activation means for activating a predetermined function when electromagnetic waves from other devices are detected;
Control means for controlling the communication means to activate the first function when the predetermined function is activated in response to detection of the electromagnetic wave;
A communication apparatus comprising: Storage means for storing wireless network setting information;
Generating means capable of generating setting information when configuring a wireless network by the first function;
Further comprising
When the predetermined function is activated in response to detection of the electromagnetic wave, the control unit uses either the setting information stored in the storage unit or the setting information generated by the generation unit, Controlling the communication means to configure a wireless network by the first function;
The communication apparatus according to claim 1. When the predetermined function is activated in response to the detection of the electromagnetic wave, and the setting information stored in the storage unit is generated by the generation unit, the control unit stores the storage unit. Controlling the communication means so that a wireless network is configured by the first function using the set information.
The communication device according to claim 2. The generation unit newly sets the setting information when the predetermined function is activated in response to the detection of the electromagnetic wave and the setting information stored in the storage unit is not generated by the communication device. Produces
The control means controls the communication means to configure a wireless network by the first function using the generated setting information;
The communication apparatus according to claim 2 or 3, wherein The generation means generates new setting information when the predetermined function is activated in response to detection of the electromagnetic wave and setting information is not stored in the storage means,
The control means controls the communication means to configure a wireless network by the first function using the generated setting information;
The communication apparatus according to any one of claims 2 to 4, wherein the communication apparatus is characterized in that: A storage means for storing wireless network setting information;
The control means is when the predetermined function is activated by a factor different from the detection of the electromagnetic wave, and the setting information stored in the storage means is not generated by the communication device, Controlling the communication means so as to participate in a wireless network configured by another communication device by a second function;
The communication apparatus according to claim 1. The control means is when the predetermined function is activated by a factor different from the detection of the electromagnetic wave, and the setting information stored in the storage means is generated by the communication device, or If the setting information is not stored in the storage means, the communication means is controlled not to perform communication.
The communication apparatus according to claim 6. A determination unit for determining whether the predetermined function is activated in response to detection of the electromagnetic wave;
The communication device according to claim 1, wherein the communication device is a device. The predetermined function is activated when a predetermined memory access is received from the other device by power obtained from the electromagnetic wave,
The determination unit determines that the predetermined function is activated in response to detection of the electromagnetic wave when it is detected that the predetermined memory access has been received.
The communication apparatus according to claim 8. A method for controlling a communication apparatus having a communication unit including a first function that configures a wireless network and a second function that participates in a wireless network configured by another communication apparatus,
An activation step of activating a predetermined function when the activation means detects an electromagnetic wave from another device; and
A control step of controlling the communication unit to activate the first function when the predetermined function is activated in response to detection of the electromagnetic wave;
A control method characterized by comprising: A computer provided in a communication device having a communication unit including a first function that configures a wireless network and a second function that participates in a wireless network configured by another communication device,
An activation step of activating a predetermined function when electromagnetic waves from other devices are detected;
A control step of controlling the communication means to activate the first function when the predetermined function is activated in response to detection of the electromagnetic wave;
A program for running

Images