JP2017163236A - Radio communication device, radio communication method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a period when a radio communication device cannot communicate with a communication terminal to be shortened.SOLUTION: A radio communication device makes first radio communication with a communication terminal at a first frequency band including a frequency shared with another radio wave generation device, makes second radio communication with the communication terminal at a second frequency band not including the frequency shared with the other radio wave generation device, and uses the second radio communication instead of the first radio communication for radio communication with the communication terminal during a communication unavailable period when the first radio communication cannot be used.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wireless communication apparatus, a wireless communication method, and a program having a DFS (Dynamic Frequency Selection) function.

  Wireless LAN (Local Area Network) communication using the 5 GHz band shares a part of the frequency band with a radar such as a weather radar. For this reason, implementation of the DFS function is obligated by the Radio Law for wireless LAN access points that use a frequency band shared with radar.

  DFS is a function that automatically changes the frequency used when a radar wave is detected at the frequency being used or scheduled to be used. When using a frequency in a frequency band for which DFS is required, the wireless LAN access point is required to perform a radar wave detection operation for 60 seconds before starting communication at that frequency. This 60-second radar wave detection operation is called “pre-operation monitoring”. Pre-operation monitoring needs to be performed after a radar wave is detected at a frequency that is being used or planned to be used and the frequency used is changed.

  During pre-operation monitoring, the wireless LAN access point must not transmit radio waves at the frequency being monitored. Therefore, when using a frequency in a frequency band in which DFS is required, the wireless LAN access point cannot start communication until 60 seconds of pre-operation monitoring is completed even if there is no radar wave at that frequency.

  On the other hand, in the method described in Patent Document 1, the wireless LAN access point stores a frequency at which a radar wave has been detected in the past. Then, when changing the frequency used by DFS, the frequency to be changed is selected avoiding the frequency in which the radar wave has been detected in the past. As a result, it is possible to reduce the possibility that the radar wave is detected again at the change destination frequency. Therefore, it is possible to increase the possibility that the communication disabled period can be shortened when the frequency used is changed by DFS.

  In the method described in Patent Document 2, the frequency to be changed is determined based on a predetermined frequency candidate when the frequency used is changed by DFS. This makes it possible to quickly change the frequency when changing the operating frequency.

  In the method described in Patent Document 3, when pre-operation monitoring is performed at a frequency different from the frequency in use and a radar wave is detected at the frequency in use, the frequency used is changed to the frequency that has been monitored before operation. Has changed. As a result, it is possible to reduce the communication disabled period due to the pre-operation monitoring period when changing the frequency used by DFS.

  Further, in the method described in Patent Document 4, information on another wireless LAN access point having a different use frequency is notified to a connection destination communication terminal when the use frequency is changed by DFS. Therefore, the communication terminal can continue communication by changing the connection-destination wireless LAN access point.

JP 2012-253807 A JP 2011-193101 A JP 2010-278825 A JP 2008-011387 A

  The methods described in Patent Document 1 and Patent Document 2 are methods for efficiently determining the frequency to be used before monitoring before operation. However, in these methods, it is necessary to perform pre-operation monitoring for 60 seconds at the determined frequency after the use frequency is determined. For this reason, a communication impossibility period due to the pre-operation monitoring for 60 seconds occurs.

  Further, in the method described in Patent Document 3, when a frequency without a radar wave is not found before the frequency is changed, a communication disabled period due to pre-operation monitoring for 60 seconds occurs.

  Further, in the method described in Patent Document 4, when there is no other wireless LAN access point, a communication impossible period due to pre-operation monitoring for 60 seconds also occurs.

  An object of the present invention is to provide a wireless communication device, a wireless communication method, and a program that can shorten a period during which the wireless communication device and the communication terminal cannot communicate.

  In order to solve the above-described problem, the wireless communication device of the present invention is a first wireless communication unit that performs first wireless communication with a communication terminal in a first frequency band including a frequency shared with other radio wave generating devices. And a second wireless communication unit that performs second wireless communication with the communication terminal in a second frequency band that does not include the frequency shared with the radio wave generator, and communication that cannot use the first wireless communication is impossible And a switching unit that uses the second wireless communication instead of the first wireless communication for wireless communication with the communication terminal during the period.

  The wireless communication method of the present invention performs first wireless communication with a communication terminal in a first frequency band including a frequency shared with other radio wave generators, and does not include the frequency shared with the radio wave generator. Instead of the first wireless communication for wireless communication with the communication terminal during the communication disabled period in which the second wireless communication is performed with the communication terminal in the second frequency band and the first wireless communication cannot be used. The second wireless communication is used.

  In addition, the wireless communication program of the present invention includes a first wireless communication function for performing first wireless communication with a communication terminal in a first frequency band including a frequency shared with other radio wave generators, and the radio wave. A second wireless communication function for performing second wireless communication with the communication terminal in a second frequency band that does not include the frequency shared with the generator, and a communication disabled period during which the first wireless communication cannot be used, A switching function that uses the second wireless communication instead of the first wireless communication for the wireless communication with the communication terminal is realized.

  According to the wireless communication device, the wireless communication method, and the program of the present invention, it is possible to reduce the period during which the wireless communication device and the communication terminal cannot communicate.

It is a figure which shows the structural example of the radio | wireless communication apparatus of 1st embodiment of this invention. It is a figure which shows the operation example of the radio | wireless communication apparatus of 1st embodiment of this invention. It is a figure which shows the structural example of the radio | wireless communication apparatus of 2nd embodiment of this invention. It is a figure which shows the operation example of the radio | wireless communication apparatus of 2nd embodiment of this invention. It is a figure which shows the operation example of the radio | wireless communication apparatus of 2nd embodiment of this invention. It is a figure which shows the operation example of the communication terminal of 2nd embodiment of this invention. It is a figure which shows the operation example of the communication terminal of 2nd embodiment of this invention. It is a figure which shows the hardware structural example of each embodiment of this invention.

[First embodiment]
A first embodiment of the present invention will be described.

  FIG. 1 shows a configuration example of a wireless communication apparatus 10 according to the present embodiment. The wireless communication device 10 according to the present embodiment includes a first wireless communication unit 11, a second wireless communication unit 12, and a switching unit 13.

  The first wireless communication unit 11 is a part that performs first wireless communication with a communication terminal in a first frequency band including a frequency shared with other radio wave generation devices. The second wireless communication unit 12 is a part that performs second wireless communication with a communication terminal in a second frequency band that does not include a frequency shared with the radio wave generator. The switching unit 13 is a part that uses the second wireless communication instead of the first wireless communication for wireless communication with the communication terminal during the communication disabled period in which the first wireless communication cannot be used.

  By configuring the wireless communication device 10 in this way, the wireless communication device 10 performs wireless communication with the second wireless communication during a period in which the first wireless communication cannot be used. Therefore, it is possible to shorten the period during which the wireless communication device and the communication terminal cannot communicate.

  Next, FIG. 2 shows an example of the operation of the wireless communication apparatus 10 of the present embodiment.

  The switching unit 13 of the wireless communication device 10 performs the second wireless communication instead of the first wireless communication for the wireless communication with the communication terminal during the communication disabled period in which the first wireless communication cannot be used (step S101). Is used (step S102).

  By operating the wireless communication device 10 in this manner, the wireless communication device 10 performs wireless communication with the second wireless communication during a period in which the first wireless communication cannot be used. Therefore, it is possible to shorten the period during which the wireless communication device and the communication terminal cannot communicate.

  As described above, in the first embodiment of the present invention, the wireless communication device performs wireless communication by the second wireless communication during a period in which the first wireless communication cannot be used. Therefore, it is possible to shorten the period during which the wireless communication device and the communication terminal cannot communicate.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

  First, a configuration example of the wireless communication device 20 according to the present embodiment will be described with reference to FIG.

  The wireless communication device 20 is a device that performs wireless communication with the communication terminal 3, and corresponds to a mobile router, a wireless LAN access point, and the like.

  The first wireless communication unit 11 is a part that performs first wireless communication with the communication terminal 3 in a first frequency band including a frequency shared with other radio wave generators. In the present embodiment, the radio wave generator is assumed to be a radar such as a weather radar. Further, it is assumed that the first frequency band is a 5 GHz band and the first wireless communication method is a wireless LAN. The first frequency band may not be the entire 5 GHz band but only the frequency band in which DFS is required.

  The first wireless communication unit 11 selects a frequency to be used for the first wireless communication from the 5 GHz band in response to a setting by the user of the wireless communication device 20 to use the 5 GHz band wireless LAN. . When the selected frequency is a frequency targeted for DFS, the DFS control unit 25 is instructed to control the DFS. In addition, the switching unit 13 is notified of the availability of the first wireless communication.

  In the case of the present embodiment, the first wireless communication unit 11 notifies the switching unit 13 that the first wireless communication is unusable when the DFS target frequency is selected as the use frequency. When the radar wave is not detected in the pre-operation monitoring, the first wireless communication unit 11 notifies the switching unit 13 that the first wireless communication can be used.

  The DFS control unit 25 is a part that performs DFS control of the first wireless communication unit 11. DFS control includes pre-operation monitoring and in-operation monitoring. The DFS control unit 25 performs pre-operation monitoring for 60 seconds to determine whether there is a radar wave at the frequency to be used before starting the first wireless communication. Also, during use of the first wireless communication, monitoring is performed during operation for the presence of radar waves at the frequency being used. When radar waves are detected during pre-operation monitoring or monitoring during operation, the frequency used for the first wireless communication is changed, and pre-operation monitoring is performed again. When a frequency without a radar wave is found by monitoring before operation, the frequency is notified to the first wireless communication unit 11.

  The second wireless communication unit 12 is a part that performs second wireless communication with the communication terminal 3 in a second frequency band that does not include a frequency shared with the radio wave generator. In the present embodiment, it is assumed that the communication method of the second wireless communication is Bluetooth (registered trademark). The second wireless communication method may be any method as long as it uses a frequency band that does not include a frequency shared with the radio wave generator. For example, a 2.4 GHz band wireless LAN may be used.

  The WAN communication unit 24 is a part that performs wired or wireless communication with a WAN (Wide Area Network).

  The switching unit 13 is a part that performs wireless communication with the communication terminal 3 using the second wireless communication during the communication disabled period in which the first wireless communication cannot be used. In the present embodiment, transmission / reception data between the WAN communication unit 24 and the communication terminal 3 passes through the first wireless communication unit 11 during the communication disabled period and passes through the second wireless communication unit 12 during the communication enabled period. It will be.

  By configuring the wireless communication device 20 in this way, the wireless communication device 20 performs wireless communication with the communication terminal by the second wireless communication during a period in which the first wireless communication cannot be used. Therefore, it is possible to shorten the period during which the wireless communication device and the communication terminal cannot communicate.

  In addition, even when the first wireless communication cannot be used during the DFS pre-operation monitoring period, it is possible to continue communication with the communication terminal using the second wireless communication.

  Next, an example of the operation of the wireless communication device 20 will be described with reference to FIGS. 4 and 5. FIG. 4 is an operation example of the first wireless communication unit 11 and the DFS control unit 25, and FIG. 5 is an operation example of the switching unit 13.

  First, the user of the wireless communication device 20 sets the wireless communication device 20 to use the wireless LAN 5 GHz band. In response to this setting, the first wireless communication unit 11 selects a frequency to be used from the 5 GHz band. Then, when the used frequency is a DFS target frequency, the DFS control unit 25 is instructed to perform monitoring before DFS operation. In addition, the switching unit 13 is notified that the first wireless communication cannot be used (step S201).

  The switching unit 13 receives the notification that the first wireless communication cannot be used, and uses the second wireless communication for communication between the WAN and the communication terminal 3 (steps S301 and S302). That is, the transmission / reception data path between the WAN communication unit 24 and the communication terminal 3 is the second wireless communication unit 12. When a radar is detected during monitoring during operation, the switching unit 13 receives a notification that the first wireless communication cannot be used during the use of the first wireless communication. In this case, after notifying the wireless communication device 20 via the first wireless communication that the wireless communication device 20 is switched to the second wireless communication, the wireless communication path is switched to the second wireless communication.

  The DFS control unit 25 starts pre-operation monitoring for 60 seconds according to an instruction from the first wireless communication unit 11 (step S202).

  In this way, even during the pre-operation monitoring period of the DFS, the communication terminal 3 can continue the wireless communication with the wireless communication device 20 by switching to the second wireless communication (Bluetooth). Become.

  When the DFS control unit 25 detects a radar wave in the pre-operation monitoring (YES in step S202), the DFS control unit 25 changes the operating frequency and performs pre-operation monitoring again (step S206). The first wireless communication unit 11 continues to be unusable.

  In addition, when 60 seconds have elapsed without detecting the radar wave in the pre-operation monitoring (YES in step S203), the DFS control unit 25 first notifies the fact that the radar wave has not been detected and the frequency of the monitored frequency. To the wireless communication unit 11. Then, the first wireless communication unit 11 notifies the switching unit 13 that the first wireless communication can be used (step S204).

  The switching unit 13 receives a notification that the first wireless communication can be used, and notifies the communication terminal 3 via the second wireless communication unit 12 that the first wireless communication is switched. And it switches to use of 1st radio | wireless communication (step S303). That is, the transmission / reception data path between the WAN communication unit 24 and the communication terminal 3 is switched from the second wireless communication unit 12 to the first wireless communication unit 11.

  When no radar wave is detected in the pre-operation monitoring, the DFS control unit 25 shifts to the in-operation monitoring and continues monitoring the radar wave at the frequency in use (step S205). When the radar wave is detected by the monitoring during operation, the first radio communication unit 11 is notified that the radar wave has been detected. Receiving the notification that the radar wave has been detected, the first wireless communication unit 11 notifies the switching unit 13 that the first wireless communication cannot be used (step S206). Further, the DFS control unit 25 changes the use frequency and performs pre-operation monitoring again at the changed frequency.

  By operating the wireless communication device 20 in this way, the wireless communication device 20 performs wireless communication with the communication terminal by the second wireless communication during a period in which the first wireless communication cannot be used. Therefore, it is possible to shorten the period during which the wireless communication device and the communication terminal cannot communicate.

  Next, an operation example of the communication terminal 3 will be described with reference to FIGS. 6 and 7.

  First, an example of an operation when the communication terminal 3 starts wireless communication with the wireless communication device 20 will be described.

  The user of the communication terminal 3 turns on the first wireless communication (wireless LAN) of the communication terminal 3. It is assumed that an SSID (Service Set Identifier) and an encryption key of the wireless communication device 20 are input in advance to the setting unit of the communication terminal 3 by the user. Then, the communication terminal 3 starts the first wireless communication detection operation of the wireless communication device 20 based on the setting information (step S401).

  When the communication terminal 3 detects the first wireless communication of the wireless communication device 20, the communication terminal 3 starts wireless communication with the wireless communication device 20 using the first wireless communication (step S401). However, when the wireless communication device 20 is performing pre-operation monitoring, since the wireless communication device 20 does not emit the first wireless communication radio wave, the communication terminal 3 detects the first wireless communication of the wireless communication device 20. I can't.

  When the first wireless communication of the wireless communication device 20 cannot be detected, the communication terminal 3 starts the second wireless communication detection operation of the wireless communication device 20 (step S403). When the communication terminal 3 detects the second wireless communication of the wireless communication device 20 and the user inputs a PIN (Personal Identification Number), the communication terminal 3 uses the second wireless communication to transmit the wireless communication device. The wireless communication with 20 is started (step S404).

  In this way, the communication terminal 3 can perform wireless communication with the wireless communication device 20 by the first wireless communication or the second wireless communication.

  Next, an operation when the communication terminal 3 switches the wireless communication path while performing wireless communication with the wireless communication device 20 will be described.

  When the communication terminal 3 is performing wireless communication with the wireless communication device 20 by the second wireless communication, the communication terminal 3 receives a notification from the wireless communication device 20 to switch to the first wireless communication via the second wireless communication. . In addition, when wireless communication is performed with the wireless communication device 20 in the first wireless communication, the wireless communication device 20 receives a notification to switch to the second wireless communication via the first wireless communication. (Step S405). Then, the communication terminal 3 switches the wireless communication route according to the notification (step S406).

  Since it is possible that the notification cannot be received due to deterioration of the reception environment or the like, the wireless communication path is switched even when the communication disabled state continues for a predetermined time (steps S407 and S408).

  In this way, the communication terminal 3 can switch between the first wireless communication and the second wireless communication in accordance with the wireless communication used by the wireless communication device 20.

  As described above, in the second embodiment of the present invention, as in the first embodiment, the wireless communication device is a communication terminal in the second wireless communication during the period in which the first wireless communication cannot be used. And wireless communication. Therefore, it is possible to shorten the period during which the wireless communication device and the communication terminal cannot communicate.

  In addition, even when the first wireless communication cannot be used during the DFS pre-operation monitoring period, it is possible to continue communication with the communication terminal using the second wireless communication.

  In the present embodiment, the case where the communication disabled period of the first wireless communication is the DFS pre-operation monitoring period has been described as an example. However, the second wireless communication is performed even during the communication disabled period for other reasons. It is possible to continue the wireless communication by switching to.

  For example, when the first wireless communication is performed using a 2.4 GHz band wireless LAN, radio wave interference with other radio wave generators (such as a microwave oven) and congestion of the used frequency are detected, and the radio of 5 GHz band is used. It is also possible to switch to the second wireless communication by LAN.

[Hardware configuration example]
A configuration example of hardware resources for realizing the wireless communication devices (10, 20) in the above-described embodiments of the present invention using one information processing device (computer) will be described. The wireless communication device may be realized using at least two information processing devices physically or functionally. The wireless communication device may be realized as a dedicated device. Further, only some functions of the wireless communication device may be realized using the information processing device.

  FIG. 8 is a diagram schematically illustrating a hardware configuration example of an information processing apparatus capable of realizing the wireless communication apparatus according to each embodiment of the present invention. The information processing device 70 includes a communication interface 71, an input / output interface 72, an arithmetic device 73, a storage device 74, a nonvolatile storage device 75, and a drive device 76.

  The communication interface 71 is a communication unit for the wireless communication device of each embodiment to communicate with an external device by wire or / and wirelessly. When the wireless communication device is realized by using at least two information processing devices, the devices may be connected to each other via the communication interface 71 so that they can communicate with each other.

  The input / output interface 72 is a man-machine interface such as a keyboard which is an example of an input device and a display as an output device.

  The arithmetic device 73 is an arithmetic processing device such as a general-purpose CPU (Central Processing Unit) or a microprocessor. For example, the arithmetic device 73 can read out various programs stored in the nonvolatile storage device 75 to the storage device 74 and execute processing according to the read programs.

  The storage device 74 is a memory device such as a RAM (Random Access Memory) that can be referred to from the arithmetic device 73, and stores programs, various data, and the like. The storage device 74 may be a volatile memory device or a non-volatile memory device.

  The non-volatile storage device 75 is a non-volatile storage device such as a ROM (Read Only Memory) or a flash memory, and can record various programs and data.

  The drive device 76 is, for example, a device that processes reading and writing of data with respect to a recording medium 77 described later.

  The recording medium 77 is an arbitrary recording medium capable of recording data, such as an optical disk, a magneto-optical disk, and a semiconductor flash memory.

  In each embodiment of the present invention, for example, a wireless communication device is configured by the information processing device 70 illustrated in FIG. 8, and a program capable of realizing the functions described in the above embodiments is supplied to the wireless communication device. It may be realized by doing.

  In this case, the embodiment can be realized by the arithmetic device 73 executing a program supplied to the wireless communication device. It is also possible to configure some of the functions of the information processing device 70 instead of all of the wireless communication device.

  Further, the program may be recorded in the recording medium 77 so that the program is appropriately stored in the nonvolatile storage device 75 at the time of shipment or operation of the wireless communication device. In this case, as the program supply method, a method of installing in the wireless communication apparatus using an appropriate jig may be employed in a manufacturing stage before shipment or an operation stage. The program supply method may employ a general procedure such as a method of downloading from the outside via a communication line such as the Internet.

  Each of the above-described embodiments is a preferred embodiment of the present invention, and various modifications can be made without departing from the scope of the present invention.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Appendix 1)
A first wireless communication unit for performing first wireless communication with a communication terminal in a first frequency band including a frequency shared with other radio wave generators;
A second wireless communication unit that performs second wireless communication with the communication terminal in a second frequency band that does not include the frequency shared with the radio wave generator,
A switching unit that uses the second wireless communication instead of the first wireless communication for wireless communication with the communication terminal during the communication disabled period during which the first wireless communication cannot be used. Wireless communication device.

(Appendix 2)
The communication disabled period is a period in which the first wireless communication cannot be used due to interference between the radio wave of the first radio communication and the radio wave of the radio wave generating device or to avoid the interference. The wireless communication apparatus according to appendix 1, wherein:

(Appendix 3)
The first frequency band includes a frequency band in which DFS (Dynamic Frequency Selection) is required,
The wireless communication device according to appendix 2, wherein the communication disabled period is a period during which the first wireless communication cannot be used by DFS.

(Appendix 4)
The wireless communication apparatus according to appendix 3, wherein the communication disabled period is a monitoring period before operation of the DFS.

(Appendix 5)
The wireless communication apparatus according to any one of appendix 1 to appendix 4, wherein the communication method of the first radio communication is a wireless local area network (LAN).

(Appendix 6)
The wireless communication apparatus according to any one of appendix 1 to appendix 5, wherein the communication method of the second wireless communication is Bluetooth (registered trademark) or a wireless LAN in a 2.4 GHz band.

(Appendix 7)
Perform the first wireless communication with the communication terminal in the first frequency band including the frequency shared with other radio wave generators,
Performing second wireless communication with the communication terminal in a second frequency band not including the frequency shared with the radio wave generator,
A wireless communication method using the second wireless communication instead of the first wireless communication for wireless communication with a communication terminal during a communication disabled period in which the first wireless communication cannot be used. .

(Appendix 8)
The communication disabled period is a period in which the first wireless communication cannot be used due to interference between the radio wave of the first radio communication and the radio wave of the radio wave generating device or to avoid the interference. The wireless communication method according to appendix 7, wherein:

(Appendix 9)
The first frequency band includes a frequency band in which DFS is required,
The wireless communication method according to appendix 8, wherein the communication disabled period is a period during which the first wireless communication cannot be used by DFS.

(Appendix 10)
The wireless communication method according to appendix 9, wherein the communication disabled period is a monitoring period before operation of the DFS.

(Appendix 11)
The wireless communication method according to any one of Supplementary Note 7 to Supplementary Note 10, wherein the communication method of the first wireless communication is a wireless LAN.

(Appendix 12)
The wireless communication method according to any one of appendix 7 to appendix 11, wherein the communication system of the second radio communication is Bluetooth (registered trademark) or a wireless LAN in a 2.4 GHz band.

(Appendix 13)
On the computer,
A first wireless communication function for performing first wireless communication with a communication terminal in a first frequency band including a frequency shared with other radio wave generators;
A second wireless communication function for performing second wireless communication with the communication terminal in a second frequency band not including the frequency shared with the radio wave generator;
A switching function that uses the second wireless communication instead of the first wireless communication for the wireless communication with the communication terminal during the communication disabled period in which the first wireless communication cannot be used is realized. A wireless communication program.

(Appendix 14)
The communication disabled period is a period in which the first wireless communication cannot be used due to interference between the radio wave of the first radio communication and the radio wave of the radio wave generating device or to avoid the interference. The wireless communication program according to appendix 13, characterized by:

(Appendix 15)
The first frequency band includes a frequency band in which DFS is required,
The wireless communication program according to appendix 14, wherein the communication disabled period is a period during which the first wireless communication cannot be used by DFS.

(Appendix 16)
The wireless communication program according to appendix 15, wherein the communication disabled period is a monitoring period before operation of the DFS.

(Appendix 17)
The wireless communication program according to any one of Supplementary Note 13 to Supplementary Note 16, wherein the communication method of the first wireless communication is a wireless LAN.

(Appendix 18)
The wireless communication program according to any one of Supplementary Note 13 to Supplementary Note 17, wherein the communication method of the second wireless communication is Bluetooth (registered trademark) or a wireless LAN in a 2.4 GHz band.

DESCRIPTION OF SYMBOLS 10, 20 Wireless communication apparatus 11 1st wireless communication part 12 2nd wireless communication part 13 Switching part 24 WAN communication part 25 DFS control part 70 Information processing apparatus 71 Communication interface 72 Input / output interface 73 Arithmetic apparatus 74 Storage apparatus 75 Nonvolatile Storage device 76 drive device 77 recording medium

Claims (10)

A first wireless communication unit for performing first wireless communication with a communication terminal in a first frequency band including a frequency shared with other radio wave generators;
A second wireless communication unit that performs second wireless communication with the communication terminal in a second frequency band that does not include the frequency shared with the radio wave generator,
A switching unit that uses the second wireless communication instead of the first wireless communication for wireless communication with the communication terminal during the communication disabled period during which the first wireless communication cannot be used. Wireless communication device. The communication disabled period is a period in which the first wireless communication cannot be used due to interference between the radio wave of the first radio communication and the radio wave of the radio wave generating device or to avoid the interference. The wireless communication apparatus according to claim 1. The first frequency band includes a frequency band in which DFS (Dynamic Frequency Selection) is required,
The wireless communication device according to claim 2, wherein the communication disabled period is a period during which the first wireless communication cannot be used by DFS. The wireless communication apparatus according to claim 3, wherein the communication disabled period is a monitoring period before operation of the DFS. Perform the first wireless communication with the communication terminal in the first frequency band including the frequency shared with other radio wave generators,
Performing second wireless communication with the communication terminal in a second frequency band not including the frequency shared with the radio wave generator,
A wireless communication method using the second wireless communication instead of the first wireless communication for wireless communication with a communication terminal during a communication disabled period in which the first wireless communication cannot be used. . The communication disabled period is a period in which the first wireless communication cannot be used due to interference between the radio wave of the first radio communication and the radio wave of the radio wave generating device or to avoid the interference. The wireless communication method according to claim 5. The first frequency band includes a frequency band in which DFS is required,
The wireless communication method according to claim 6, wherein the communication disabled period is a period during which the first wireless communication cannot be used by DFS. The wireless communication method according to claim 7, wherein the communication disabled period is a monitoring period before operation of the DFS. On the computer,
A first wireless communication function for performing first wireless communication with a communication terminal in a first frequency band including a frequency shared with other radio wave generators;
A second wireless communication function for performing second wireless communication with the communication terminal in a second frequency band not including the frequency shared with the radio wave generator;
A switching function that uses the second wireless communication instead of the first wireless communication for the wireless communication with the communication terminal during the communication disabled period in which the first wireless communication cannot be used is realized. A wireless communication program. The communication disabled period is a period in which the first wireless communication cannot be used due to interference between the radio wave of the first radio communication and the radio wave of the radio wave generating device or to avoid the interference. The wireless communication program according to claim 9.

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