JP2006148488A - Setting method for radio communication network and for radio communication apparatus, and radio communication apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform wireless setting for participating in a radio communication network by simple operation. <P>SOLUTION: When a printer 302 selects a desired network identifier from among a plurality of network identifiers set beforehand, and a digital still camera 301 selects a network identifier the same as the network identifier selected by the printer 302, wireless setting for participating in the radio communication network is performed. When the network identifier is changed to a network identifier different from the selected one after that, wireless setting is performed using the changed network identifier. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a setting technique in a wireless communication network composed of a plurality of wireless communication devices.

  In recent years, there has been an increasing demand for wireless transmission of information that has conventionally been performed by wire, and wireless communication is also used for communication between peripheral devices such as a personal computer (PC), a digital still camera (DSC), a storage, and a printer. Being started. According to this wireless communication, there is a feature that cable laying is unnecessary, the degree of freedom of setting locations of each device is increased, and portability is improved.

  Hereinafter, a method for setting communication parameters when a conventional wireless communication device performs wireless communication will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating an example of a configuration of a wireless communication system in a conventional example. In FIG. 1, reference numeral 101 denotes a personal computer (PC) having a wireless communication function, which performs data transmission with another PC or printer having the same wireless communication function using a wireless communication unit that provides the wireless communication function. It is possible. A printer 102 has a wireless communication function, and can perform data transmission with the PC 101 using a wireless communication unit that provides a wireless communication function. A PC 103 is connected to the printer 102 via a cable.

  In addition, the above-described wireless communication unit is set to an ad-hoc mode of IEEE802.11 compliant wireless LAN (a mode for direct communication without using a relay station), and establishes a wireless link between the PC 101 and the printer 102 that transmits data. Wireless communication.

  FIG. 2 is a flowchart showing a conventional method for searching for a printer 102 that should transmit data from the PC 101. For example, when the PC 101 and the printer 102 are set to the ad hoc mode, the following processing is performed on both devices.

  First, an SSID (Service Set Identifier) that is a network identifier is set (step S201). Further, if necessary, a “WEP (Wired Equivalent Privacy) key” that is an encryption key for preventing wiretapping in wireless communication is set (step S202). Then, an ad hoc mode as a wireless communication mode is set (step S203), and a device on the wireless network is searched (step S204).

  In this setting method, direct input is performed to the PC 101, and in the printer, the PC 103 is wired as an input device via an RS-232C cable or a USB (Universal Serial Bus) cable, and input processing is performed therefrom.

  Through the procedure described above, a printer to be printed is selected from devices on the wireless network (step S205), and a wireless link is established.

By setting common wireless communication setting information between the PC 101 and the printer 102 in both devices by the above method, a wireless link can be established between the PC 101 and the printer 102, and output processing is performed by wireless communication. Etc. are being implemented.
JP 2003-186817 JP

  However, in the conventional example, when performing wireless setting, the PC 101 can easily input and set the SSID using an input function such as a keyboard. On the other hand, since the printer 102 does not have means for directly inputting the SSID, for example, a device having an input function such as a PC is connected by a wired connection such as a USB cable, and a PC keyboard or the like is connected. SSID had to be set by using and entering.

  For example, when a wireless LAN is constructed using only a digital still camera (DSC) and a printer, the DSC and the printer are terminals that have inconvenient or no means for inputting the SSID. Therefore, in such a case, only for inputting the SSID, for example, by connecting a DSC or printer with a device having an input function such as a PC by a wired connection such as a USB cable, and inputting the SSID from a PC keyboard or the like. Communication parameters such as had to be set.

  As described above, there is a problem that troublesome processing such as connecting to a PC or the like by wire only to set communication parameters occurs. In order to solve this problem, a specified SSID is set in the DSC and the printer. A method for constructing a wireless LAN when the same SSID is selected for the DSC and the printer has been proposed.

  However, even with this method, there is a problem that usable SSIDs are lost immediately unless a large number of SSIDs to be set in advance are prepared.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to perform wireless setting for participating in a wireless communication network with a simple operation.

  The present invention is a method for setting a wireless communication network composed of a plurality of wireless communication devices, and selects a desired network identifier from a plurality of network identifiers set in advance in the first wireless communication device. A step of selecting a desired network identifier from a plurality of network identifiers preset in the second wireless communication device, and the network identifier selected by the second wireless communication device is the second identifier. A wireless setting for joining the wireless communication network using the network identifier when the wireless communication device matches the network identifier selected by the wireless communication device; and after joining the wireless communication network, the first And a second wireless communication device that is different from the network identifier selected by the first wireless communication device. A step of changing the click identifier, characterized in that a step of performing a wireless setting in the second wireless communication device using the changed network identifier.

  The present invention also relates to a method for setting a wireless communication device constituting a wireless communication network, the step of selecting a desired network identifier from a plurality of preset network identifiers, and the selected network identifier If the network identifier selected by the other wireless communication apparatus matches the network identifier, the wireless setting for participating in the wireless communication network is performed using the network identifier, and after joining the wireless communication network The network identifier is changed together with the other wireless communication device.

  According to the present invention, it is possible to perform wireless settings for participating in a wireless communication network with a simple operation.

  The best mode for carrying out the invention will be described below in detail with reference to the drawings. In the following description, when a digital still camera and a printer composing an IEEE802.11 compliant wireless LAN communicate in an ad hoc mode, the printer sends a notification signal (beacon: Beacon), and the ESSID included in the beacon. A case where a digital still camera participates in a network identified by (Extended Service Set Identification) will be described as an example.

  FIG. 3 is a diagram illustrating an example of a configuration of the wireless communication system according to the first embodiment. A digital still camera (DSC) 301 shown in FIG. 3 has a wireless communication function, and a wireless LAN is configured with a printer 302 having the same wireless communication function using a wireless communication unit that provides the wireless communication function. This constitutes a “wireless LAN direct print system” that performs data transmission.

  First, the configuration of the DSC 301 and the printer 302 corresponding to the wireless LAN direct print system shown in FIG. 3 will be described.

  FIG. 4 is a functional block diagram of the digital still camera (DSC) 301 in the first embodiment. As shown in FIG. 4, the operation unit 410 of the DSC 301 is connected to the CPU 415 via the system controller 411, and the operation unit 410 includes a DSC shutter switch and various keys. The imaging unit 402 is a block that captures an image when the shutter is pressed, and the captured image data is processed by the imaging processing unit 403.

  A display unit 406 is a block that displays information for the user, such as an LCD display, an LED display, and a voice display. The display processing unit 407 controls the contents to be displayed. Further, operations such as selection by the user based on information displayed on the display unit 406 are performed in conjunction with the operation unit 410. That is, the display unit 406 and the operation unit 410 constitute a user interface.

  The wireless communication function unit 404 is a block that executes wireless communication, and the RF unit 405 transmits and receives wireless signals to and from other wireless communication devices. The memory card I / F 408 is an interface for connecting a removable memory card 409, the USB I / F 412 is an interface for connecting to an external device using USB, and the audio I / F 414 is for connecting a sound signal to the external device. It is an interface to do.

  The functional parts shown in these block diagrams are processed by control from the CPU 415, and a program controlled by the CPU 415 is stored in the ROM 416 or the flash ROM 413. Data processed by the CPU 415 is written to or read from the RAM 417 or the flash ROM 413. The flash ROM 413 is a non-volatile storage area, and in the first embodiment, setting information for wireless communication is stored therein.

  The captured image data is written (stored) in the memory card 409 via the memory card I / F 408 through a known compression process.

  FIG. 5 is a functional block diagram of the printer 302 according to the first embodiment. As shown in FIG. 5, the operation unit 510 of the printer 302 is connected to the CPU 515 via the system controller 511. A print engine 502 is a block that actually prints an image on a sheet, and image data to be printed is processed by a print processing unit 503. The print engine 502 may be any type, but the first embodiment is an ink jet printer that ejects ink droplets onto a recording medium such as recording paper by thermal energy.

  A display unit 506 is a block that displays information for the user, such as an LCD display, an LED display, and a voice display. The display processing unit 507 controls the contents to be displayed. Further, operations such as selection by the user based on information displayed on the display unit 506 are performed via the operation unit 510. That is, the display unit 506 and the operation unit 510 constitute a user interface of the printer 302 in the first embodiment.

  The wireless communication function unit 504 is a block that executes wireless communication, and the RF unit 505 transmits and receives wireless signals to and from other wireless communication devices. A memory card I / F 508 is an interface for connecting a removable memory card 509, and a captured image can be printed by inserting a memory card mounted on the DSC 301.

  The USB I / F 512 is an interface for connecting to an external device using USB, and the parallel I / F 514 is an interface for connecting to an external device (mainly a host computer) using parallel communication.

  The functional parts shown in these block diagrams are processed by control from the CPU 515, and a program controlled by the CPU 515 is stored in the ROM 516 or the flash ROM 513. Data processed by the CPU 515 is written to or read from the RAM 517 or the flash ROM 513. The flash ROM 513 is a non-volatile storage area, and in the first embodiment, setting information for wireless communication is stored therein.

  Note that although the above-described DSC 301 and the RF units 405 and 505 of the printer 302 are provided with antennas, they are not necessarily provided in a form protruding outward. In particular, in the case of the DSC 301, portability is an important factor, so it is desirable that the antenna is not built in, but is built in or mounted on the surface.

  In the DSC 301 and the printer 302, a plurality of identification codes (hereinafter referred to as ESSID: Extended Service Set Identification) as shown in FIG. 6 are stored in advance in the ROM 416 or the flash ROM 413 in the case of the DSC 301. Is stored in advance in the ROM 516 or the flash ROM 513.

  Here, a method for setting wireless communication parameters that need to be set when the DSC 301 and the printer 302 construct a wireless LAN system using an ESSID will be described.

  FIG. 7 is a flowchart showing a communication parameter setting procedure on the printer side. First, in step S701, the user presses a “communication parameter setting button” on the operation unit 503 of the printer 302 main body. By this operation, the wireless communication function unit 504 of the printer 302 enters the “communication parameter setting mode”. In step S702, the wireless communication function unit 504 prompts the user to select one of the plurality of ESSIDs illustrated in FIG.

  As a selection method for allowing the user to select an ESSID, for example, the ESSID displayed on the display unit 506 is switched according to the number of times the “communication parameter setting button” is pressed, and the user selects the ESSID or the backlight color of the display unit 506. Or a method for selecting an arbitrary color.

  Next, when the user selects one of ESSID or “ESSID corresponding number” displayed on the display unit 506 by the above-described selection method in step S703, a notification signal including the designated ESSID (step S704). Beacon) search starts. In step S705, it is determined whether there is a beacon including the selected ESSID.

  If the corresponding beacon is found, the process proceeds to step S706, and the wireless communication function unit 504 notifies the user that the selected ESSID is already used and cannot be selected. In step S707, the user is prompted again to select an ESSID that is different from the previously selected ESSID.

  In this way, the processes in steps S703 to S707 are repeated until the user can select an available ESSID.

  Thereafter, if no corresponding beacon is found in step S705, the process proceeds to step S708, and the wireless communication function unit 504 determines a channel for transmitting a beacon including the ESSID selected by the user. In this channel determination method, it is preferable to search in advance for the least frequently used channel around the printer 302 and select the channel.

  Next, in step S709, the wireless communication function unit 504 that has determined the ESSID and channel to be used displays the ESSID to be used, the “ESSID correspondence number”, or the backlight color on the display unit 506, and the setting of the communication parameters is completed. Notify that.

  Then, the wireless communication function unit 504 transmits a beacon including the previously determined ESSID on the determined channel.

  When the above processing is completed, the wireless communication function unit 504 of the printer 302 exits from the “communication parameter setting mode” and waits for a wireless communication terminal participating in this ad hoc mode wireless LAN.

  Next, a method for setting communication parameters in order for the DSC 301 to participate in the network identified by the ESSID while the printer 302 transmits a beacon including a prescribed ESSID and waits for participation in the wireless network will be described. To do.

  FIG. 8 is a flowchart showing a communication parameter setting method in DSC. First, in step S801, the user presses an “ESSID search button” on the operation unit 410 of the DSC 301 main body. By this operation, the wireless communication function unit 404 of the DSC 301 enters the “ESSID search mode”.

  Next, in step S802, the wireless communication function unit 404 sets an ESSID for identifying a participating network from a plurality of ESSIDs stored in advance in the ROM 416 or the flash ROM 413. As in the case of the printer 302, for example, the setting method switches the ESSID displayed on the display unit 406 according to the number of times the “ESSID search button” is pressed, and allows the user to select the ESSID and the backlight color of the display unit 406. A method may be used in which any color is selected. What is important is that the display method on the display unit 406 is unified between the printer 302 and the DSC 301.

  In step S803, a beacon transmitted from the printer 302 or the wireless communication terminal is received, and ESSIDs included in the plurality of beacons are checked. In step S804, a search is performed to determine whether there is an ESSID corresponding to the ESSID set in step S802. If the corresponding ESSID cannot be found in step S805, the process proceeds to step S806 to notify the user to that effect. Encourage confirmation of selection mistakes.

  In step S805, if the corresponding ESSID is found, the process proceeds to step S807, and the wireless communication function unit 404 sets the channel to which the corresponding ESSID is transmitted as a channel to be used. In step S808, a wireless link is established with the ESSID and channel in the printer 302, participates in the ad hoc mode network, and requests the printer 302 to print the image data processed by the imaging processing unit 403.

  FIG. 9 is a flowchart showing control in the printer 302. First, in step S901, when the printer 302 establishes a wireless link with the DSC 301 in the above-described procedure, in the next step S902, a new ESSID that is different from the prescribed ESSID is calculated. In step S903, the DSC 301 is notified of the new ESSID obtained in step S902. Next, in step S904, the ESSID included in the beacon is changed to a new ESSID, and transmission of a beacon including the new ESSID is started. In step S905, the new ESSID is displayed on the display unit 506.

  FIG. 10 is a flowchart showing control in the DSC 301. First, in step S1001, the DSC 301 establishes a wireless link as in the printer, and then waits for reception of a new ESSID from the printer 302 in the next step S1002. Thereafter, when a new ESSID is received, the process advances to step S1003 to re-establish a wireless link with the printer 302 using the new ESSID. In step S1004, the new ESSID is displayed on the display unit 406.

  Here, a new ESSID calculation method calculated in step S902 shown in FIG. 9 will be described in detail.

  FIG. 11 is a flowchart illustrating an example of a new ESSID calculation method calculated by the printer 302. In FIG. 11A, in step S1101, a channel number for communication is added to a prescribed ESSID. That is, when the DSC 301 and the printer 302 that have selected SHINJO shown in FIG. 6 as the prescribed ESSID establish a wireless link on channel 1, SHINJO1 (or 1SHINJO) becomes the new ESSID.

  Next, in (B) shown in FIG. 11, a random number is calculated in step S1102, and the calculated random number is added to a prescribed ESSID in step S1103. In other words, after the DSC 301 and the printer 302 that have selected ICHIRO shown in FIG. 6 as the prescribed ESSID establish a wireless link, a random number (for example, 51) is added to the ESSID, and the ESSID is changed to, for example, ICHIRO 51 (or 51 ICHIRO). Here, random numbers are used, but it is possible to easily add a combination of random numbers and characters. For example, an example is conceivable in which a combination of random numbers and letters is added to MATSUI and changed to 55MATSUIGODZILLA.

  Then, in (C) shown in FIG. 11, random numbers are calculated in step S1104, and in step S1105, all of them are replaced with random numbers without leaving a prescribed ESSID. This process is an example in which GOD5ZI5LLA is set as a new ESSID after a wireless LAN link is established with, for example, MATSUI.

  As described above, according to the first embodiment, communication parameters for allowing a wireless communication terminal to participate in a wireless LAN can be set with a simple operation. In addition, by changing to a new ESSID after establishing a wireless link by ESSID stored in advance for ESSID setting, it is possible to prevent the setting ESSID from becoming insufficient and preventing the wireless LAN setting of other wireless communication terminals from being hindered. You can also.

  Next, Embodiment 2 according to the present invention will be described in detail with reference to the drawings. In the second embodiment, as shown in FIG. 12, the DSC 301 and the printer 302 have already established a wireless link using an ESSID obtained by adding some number or character string to a specified ESSID by the method of the first embodiment. The control when a new DSC 303 attempts to join the wireless link will be described.

  FIG. 13 is a flowchart illustrating DSC control according to the second embodiment. First, in step S1301, when the operator of the new DSC 303 presses a button for joining a wireless link from the operation unit 410, the process proceeds to step S1302, and a prescribed ESSID is displayed on the display unit 406. In step S1303, an ESSID used as a part of the ESSID of the wireless link to be joined is selected from the displayed prescribed ESSIDs. That is, for example, if the display of ESSID is ICHIRO51, ICHORO is selected from the specified ESSID.

  Here, if ESSID is selected, the process proceeds to step S1304, and the CPU 415 of the DSC 303 searches the surrounding environment for an ESSID that includes the selected ESSID. In step S1305, it is determined whether or not the corresponding ESSID has been found. If the corresponding ESSID has been found, the process proceeds to step S1306, and it is determined whether or not a plurality of ESSIDs have been found. As a result, if there is only one, the process advances to step S1310 to establish a wireless link with the ESSID and participate in the wireless LAN.

  If a plurality of corresponding ESSIDs can be found in step S1306, the process proceeds to step S1307, and these ESSIDs are displayed on the display unit 406. In step S1308, the operator is made to select the ESSID of the wireless link to participate in, and in step S1309, the wireless link is established with the selected ESSID and participates in the wireless LAN.

  On the other hand, if the corresponding ESSID cannot be found in the surrounding environment in step S1305 described above, the process proceeds to step S1311, the wireless connection failure is displayed on the display unit 406, and the process ends.

  As described above, according to the second embodiment, even if an operator of a new wireless communication device tries to participate in the wireless LAN, it is possible to participate using the extended ESSID without any problem.

  Next, Embodiment 3 according to the present invention will be described in detail with reference to the drawings. In the third embodiment, when a wireless link is established between the DSC 301 and the printer 302 by the method of the first embodiment, a mode for permitting a new wireless communication device to participate in the wireless LAN and a mode for refusing are provided. The control will be described.

  The configuration of the wireless LAN is the same as that of the second embodiment described with reference to FIG. 12, and the description thereof is omitted.

  FIG. 14 is a flowchart showing control of the DSC 301 (printer 302). First, in step S1401, the DSC 301 (printer 302) establishes a wireless link using a prescribed ESSID, and then reestablishes the wireless link with a new ESSID in step S1402. In step S1403, the DSC 301 (printer 302) determines whether or not a rejection mode for refusing to join a new wireless communication terminal (for example, DSC 303) to the wireless LAN is set. If the rejection mode is set, the process proceeds to step S1404, and the unique ID of the terminal that has established the wireless link is stored.

  Next, in step S1405, if there is a participation request from the wireless communication terminal, the process proceeds to step S1406, and it is determined whether or not the terminal has a stored ID. If the stored ID is a terminal, the process advances to step S1407 to perform wireless communication. If not, the process proceeds to step S1410, and wireless communication is rejected.

  On the other hand, in the above-described step S1403, if a permission mode for permitting participation of a new terminal in the wireless LAN is set, the process proceeds to step S1408, and if there is a participation request from the wireless communication terminal, the process proceeds to step S1409 and rejected. Wireless communication without having to do.

  FIG. 15 is a flowchart illustrating printer control according to the third embodiment. First, in step S1501, the printer 302 establishes a wireless link, and in step S1502, the printer 302 determines whether a permission mode for permitting participation of a new wireless communication terminal in the wireless LAN is set. If the permission mode is set, the process advances to step S1503 to calculate a new ESSID including a prescribed ESSID, and notifies the communication partner terminal of the new ESSID in a subsequent step S1505. In step S1506, a beacon is transmitted, and in step S1507, a new ESSID is displayed on the display unit 506.

  In step S1502, if a rejection mode for rejecting a wireless link with a new wireless communication terminal is set, the process proceeds to step S1508, where the new ESSID is composed of a combination of random numbers and characters, and subsequent step S1509. The new ESSID is notified to the wireless communication terminal of the communication partner. In step S1510, a new ESSID beacon is transmitted.

  As described above, according to the embodiment, in a wireless communication method in which a plurality of wireless communication terminals communicate, an ID for communication is selected from a plurality of IDs set in advance in the first wireless communication terminal. Selecting means, a means for selecting an ID for communication from a plurality of IDs preset in the second wireless communication terminal, a first wireless communication terminal, and a second wireless communication terminal The first wireless communication terminal and the second wireless communication terminal have preset IDs for communication after the wireless link is established with the means for performing wireless communication when the selected IDs match. By changing the ID to an ID different from the ID selected from the IDs and performing wireless communication thereafter using the changed ID, there is an excellent effect of preventing the communication ID from being depleted.

  Furthermore, the provision of a means for a new wireless communication terminal to participate in the wireless LAN using the specified ESSID also has an excellent effect of preventing usability from being impaired.

  Even if the present invention is applied to a system constituted by a plurality of devices (for example, a host computer, an interface device, a reader, a printer, etc.), it is applied to an apparatus (for example, a copying machine, a facsimile machine, etc.) comprising a single device. It may be applied.

  Another object of the present invention is to supply a recording medium in which a program code of software realizing the functions of the above-described embodiments is recorded to a system or apparatus, and the computer (CPU or MPU) of the system or apparatus stores it in the recording medium. Needless to say, this can also be achieved by reading and executing the programmed program code.

  In this case, the program code itself read from the recording medium realizes the functions of the above-described embodiment, and the recording medium storing the program code constitutes the present invention.

  As a recording medium for supplying the program code, for example, a floppy (registered trademark) disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like is used. be able to.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) operating on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

  Further, after the program code read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

It is a figure which shows an example of a structure of the radio | wireless communications system in a prior art example. 10 is a flowchart illustrating a conventional method for searching for a printer 102 to which data is to be transmitted from a PC 101. 1 is a diagram illustrating an example of a configuration of a wireless communication system according to a first embodiment. 2 is a functional block diagram of a digital still camera (DSC) 301 in Embodiment 1. FIG. FIG. 2 is a functional block diagram of a printer 302 in Embodiment 1. It is a figure which shows an example of several identification code | symbol (ESSID) set as a communication parameter. 6 is a flowchart illustrating a communication parameter setting procedure on the printer side. It is a flowchart which shows the setting method of the communication parameter in DSC. 3 is a flowchart illustrating control in a printer 302. It is a flowchart which shows the control in DSC301. 5 is a flowchart illustrating an example of a new ESSID calculation method calculated by a printer. 6 is a diagram illustrating an example of a configuration of a wireless communication system according to a second embodiment. FIG. 10 is a flowchart illustrating control of DSC in the second embodiment. 4 is a flowchart showing control of a DSC 301 (printer 302). 10 is a flowchart illustrating printer control according to a third exemplary embodiment.

Explanation of symbols

101 Personal Computer 102 Printer 103 Personal Computer 301 Digital Still Camera 302 Printer 303 Digital Still Camera

Claims (13)

A wireless communication network setting method comprising a plurality of wireless communication devices,
Selecting a desired network identifier from a plurality of network identifiers set in advance in the first wireless communication device;
Selecting a desired network identifier from a plurality of network identifiers set in advance in the second wireless communication device;
Wireless setting for participating in the wireless communication network using the network identifier when the network identifier selected by the second wireless communication device matches the network identifier selected by the second wireless communication device A process of performing
After joining the wireless communication network, the first and second wireless communication devices change to a network identifier different from the network identifier selected by the first wireless communication device;
And a step of performing wireless setting in the second wireless communication device using the changed network identifier.   2. The wireless communication network setting method according to claim 1, wherein an ESSID of a wireless LAN conforming to IEEE802.11 is used as the network identifier.   2. The wireless communication network setting method according to claim 1, wherein the changed network identifier uses a channel number added after the selected network identifier.   2. The wireless network setting method according to claim 1, wherein the changed network identifier uses a combination of random numbers and letters after the selected network identifier.   2. The third wireless communication apparatus, when a third wireless communication apparatus wants to participate in the wireless communication network, joins using a network identifier used for wireless communication by the first and second wireless communication apparatuses. Wireless communication network setting method.   6. The wireless communication network according to claim 5, wherein when only one network identifier obtained by extending the set network identifier is found, the third wireless communication apparatus participates using the network identifier. Setting method.   6. The wireless communication network according to claim 5, wherein when a plurality of network identifiers obtained by extending the set network identifier are found, the plurality of network identifiers are displayed, and the user is allowed to select which network identifier is used. Setting method.   A mode for permitting participation of a third wireless communication device and a mode for rejecting the wireless communication network are provided, and when the mode for rejection is set, the participation of the third wireless communication device is rejected. The wireless communication network setting method according to claim 5.   9. The wireless communication network according to claim 8, wherein, when the mode to be rejected is set, a combination of random numbers and characters is used as the changed network identifier instead of the selected network identifier. Setting method. A method of setting a wireless communication device constituting a wireless communication network,
Selecting a desired network identifier from a plurality of preset network identifiers;
When the selected network identifier matches the network identifier selected by another wireless communication device, the step of performing wireless setting for participating in the wireless communication network using the network identifier,
A method for setting a wireless communication device, wherein the network identifier is changed together with the other wireless communication device after joining the wireless communication network. A wireless communication device constituting a wireless communication network,
A selection means for selecting a desired network identifier from a plurality of preset network identifiers;
Means for performing wireless setting for participating in the wireless communication network using the network identifier when the selected network identifier matches a network identifier selected by another wireless communication device;
A wireless communication apparatus comprising: a changing unit that changes a network identifier together with the other wireless communication apparatus after joining the wireless communication network.   The program for making a computer perform the setting method of the radio | wireless communication apparatus of Claim 10.   A computer-readable recording medium on which the program according to claim 12 is recorded.

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