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WO2019013124A1 - Appareil de traitement d'informations, dispositif électronique, procédé de commande pour appareil de traitement d'informations et, programme de commande - Google Patents

Appareil de traitement d'informations, dispositif électronique, procédé de commande pour appareil de traitement d'informations et, programme de commande Download PDF

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Publication number
WO2019013124A1
WO2019013124A1 PCT/JP2018/025690 JP2018025690W WO2019013124A1 WO 2019013124 A1 WO2019013124 A1 WO 2019013124A1 JP 2018025690 W JP2018025690 W JP 2018025690W WO 2019013124 A1 WO2019013124 A1 WO 2019013124A1
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WO
WIPO (PCT)
Prior art keywords
frequency band
radio frequency
electronic device
predetermined
switching unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/025690
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English (en)
Japanese (ja)
Inventor
弘樹 田邊
秀紀 桑島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of WO2019013124A1 publication Critical patent/WO2019013124A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/08—Interfaces between hierarchically different network devices between user and terminal device

Definitions

  • the present invention relates to an information processing apparatus provided in an electronic device connectable to another electronic device by a USB (Universal Serial Bus) cable and the related art.
  • USB Universal Serial Bus
  • Many electronic devices that can be wirelessly connected to a wireless device such as a wireless LAN router are configured such that power can be supplied from another electronic device via a USB cable.
  • Patent Document 1 includes an interface that mediates connection with an electronic device, transmission / reception means for performing communication between the electronic device and the network, communication state detection means for detecting the state of the network, and the state of the electronic device. And a communication control unit having interface control means for controlling the transfer rate of the interface based on at least one of the states of the network.
  • the noise generated from the USB cable may cause problems such as a decrease in communication speed and communication disconnection of wireless communication performed between the electronic device and the wireless device. Can cause
  • One embodiment of the present invention prevents problems such as reduction in communication speed and communication disconnection of wireless communication performed between an electronic device and a wireless device even when the electronic device and another electronic device perform wired communication.
  • the purpose is
  • an information processing apparatus performs wired communication with another electronic device via a USB cable, and performs wireless communication with a wireless device in a predetermined radio frequency band.
  • a control method of an information processing apparatus performs wired communication with another electronic device via a USB cable, and a predetermined wireless frequency with a wireless device.
  • a control method of an information processing apparatus provided in an electronic device performing wireless communication in a band wherein it is determined whether or not the electronic device and the other electronic device are performing wired communication conforming to a predetermined USB standard.
  • a switching step of switching the predetermined radio frequency band to another radio frequency band with reference to at least the judgment result of the judgment step.
  • the communication speed of wireless communication performed between the electronic device and the wireless device is reduced
  • the effect of preventing problems such as communication disconnection can be achieved.
  • the control method of the information processing apparatus according to an aspect of the present invention can achieve the same effect.
  • FIG. 1 It is a functional block diagram showing composition of an important section of a smart phone concerning Embodiment 1. It is a figure which shows an example of the flow of the process which controls the smart phone of FIG. It is a functional block diagram which shows the structure of the principal part of the smart phone which concerns on Embodiment 2.
  • FIG. It is a figure which shows an example of the flow of the process which sets the threshold value used for control of the smart phone of FIG. It is a figure which shows an example of the flow of the process which controls the smart phone of FIG.
  • FIG. 1 is a functional block diagram showing the configuration of the main part of the smartphone 1 (electronic device) of the first embodiment.
  • the smartphone 1 can be connected to an external HDD (another electronic device) 50 by a USB cable 60, and can charge a battery by USB power feeding.
  • connection by the USB cable 60 is also referred to as USB connection.
  • the smartphone 1 is exemplified as an example of the electronic device.
  • a mode is described in which it is assumed that the smartphone 1 downloads data from the Internet 40 via the wireless LAN router 30 and stores the data in the external HDD 50 via the USB cable 60.
  • the electronic device is not limited to the smartphone 1.
  • the electronic device may be any electronic device capable of USB connection with the external HDD 50, and may be, for example, a feature phone, a tablet PC (Personal Computer) or a notebook PC.
  • the external HDD 50 may be any other electronic device capable of USB power feeding to the electronic device, and may be, for example, a notebook PC connected to a power supply (not shown).
  • the wireless LAN router 30 may be any other wireless device capable of performing wireless communication with the electronic device in a predetermined wireless frequency band and another wireless frequency band.
  • the smartphone 1 includes a control unit 10 (information processing apparatus), a USB port 52, and a wireless communication unit 20.
  • USB port 52 is a connection portion of the USB cable 60 in the smartphone 1.
  • USB port 51 is a connection portion of the USB cable 60 in the external HDD 50. Therefore, the smartphone 1 and the external HDD 50 can be connected by the USB cable 60 connected to the USB ports 51 and 52.
  • USB Type-C the USB Type-C standard
  • USB Type-C the USB Type-C standard
  • the USB cable corresponding to the USB Type-C is also referred to as a USB Type-C cable.
  • USB port 52 in the smartphone 1 and the USB port 51 in the external HDD 50 are also compatible with USB Type-C is mainly illustrated. Since the configurations of the USB cable 60 and the USB ports 51 and 52 are known, detailed description of the configurations will be omitted.
  • the USB Type-C is a backward compatible USB standard, and supports the USB 2.0 standard, the USB 3.0 standard, the USB 3.1 standard, and the like. Therefore, for example, even when the external HDD 50 is a legacy device (device not compatible with USB Type-C), communication (USB communication) is performed between the smartphone 1 and the external HDD 50 via the USB cable 60. It is possible to do.
  • USB communication speed (or USB data transfer speed).
  • USB communication speed (USB data transfer speed) is an amount of data per unit time that can be transmitted by USB communication.
  • the USB communication speed is an indicator of a memory bandwidth (USB communication memory bandwidth) used for processing of USB communication in the smartphone 1.
  • the maximum value of the USB communication speed in the USB 3.0 standard is 5 Gbps (Giga bit per second), and the maximum value of the USB communication speed in the USB 3.1 standard is 10 Gbps.
  • the maximum value of the USB communication speed in the USB 2.0 standard is 480 Mbps (Mega bps).
  • Control unit 10 The control unit 10 controls each part of the smartphone 1 in an integrated manner.
  • the control unit 10 includes a switching unit 11 and a determination unit 12.
  • the function of the control unit 10 may be realized by executing a program stored in a ROM (not shown) and a RAM (not shown) by a central processing unit (CPU). The specific operation of the control unit 10 will be described later.
  • the ROM may include, for example, a known non-volatile memory such as a hard disk drive.
  • the RAM may include, for example, a known volatile memory such as SRAM (Static RAM) or DRAM (Dynamic RAM).
  • SRAM Static RAM
  • DRAM Dynamic RAM
  • the determination unit 12 determines whether or not the smartphone 1 and the external HDD 50 are performing wired communication conforming to a predetermined USB standard.
  • the determination unit 12 determines that the USB port 51 of the external HDD 50 and the USB port 52 of the smartphone 1 conform to the USB 3.0 standard or the USB 3.1 standard (hereinafter referred to as the "USB 3. x standard"). It is determined whether or not compliant wired communication is performed.
  • the determination unit 12 determines that the smartphone 1 and the external HDD 50 are USB3. It is determined whether wired communication conforming to the x standard is being performed. However, the present embodiment is not limited to this, and the determination unit 12 may determine, for example, whether or not the external HDD 50 and the smartphone 1 perform wired communication conforming to the USB 2.0 standard.
  • the switching unit 11 switches a predetermined radio frequency band used for a radio frequency band performing radio communication with the wireless LAN router (wireless device) 30 to another radio frequency band with reference to at least the determination result by the determination unit 12.
  • the determination unit 12 determines that the smartphone 1 and the external HDD 50 are USB3. If it is determined that wired communication conforming to the x standard is being performed, the 2.4 GHz band is switched to the 5 GHz band.
  • the smartphone 1 and the external HDD 50 are USB3.
  • noise is generated.
  • the noise interferes with a predetermined radio frequency band, and there is a possibility that adverse effects such as a decrease in communication speed and communication disconnection may occur.
  • the switching unit 11 switches the 2.4 GHz band to the 5 GHz band.
  • the external HDD 50 and the smartphone 1 are USB3. Even when wired communication conforming to the x standard is performed, it is possible to prevent problems such as a decrease in the communication speed of wireless communication and a communication disconnection.
  • the switching unit 11 determines whether or not to switch the predetermined radio frequency band by further referring to the radio wave conditions of the predetermined radio frequency band and another radio frequency band, in addition to the determination result by the determination section 12 described above. May be
  • the determination unit 12 allows the smartphone 1 and the external HDD 50 to be USB3. It is assumed that it is determined that wired communication conforming to the x standard is being performed.
  • the switching unit 11 sequentially checks the status of the radio wave received by the antennas 21 and 22 of the wireless communication unit 20 from the wireless LAN router 30 using a monitor (not shown) or the like. Then, the switching unit 11 may determine whether to switch the 2.4 GHz band to the 5 GHz band by comparing the radio wave condition of the 2.4 GHz band and the radio wave condition of the 5 GHz band.
  • the wireless communication speed may not be increased.
  • the switching unit 11 compares the radio wave condition in the 2.4 GHz band with the radio wave condition in the 5 GHz band to determine whether to switch the 2.4 GHz band to the 5 GHz band.
  • the switching unit 11 may determine whether to switch 2.4 GHz to the 5 GHz band by comparing the reception strength of the 2.4 GHz band radio wave with the reception strength of the 5 GHz band radio wave.
  • the radio communication speed may not be increased even when switching to the 5 GHz band radio wave.
  • the switching unit 11 when the reception strength of the 5 GHz band radio wave is equal to or less than the reception strength of the 2.4 GHz band radio wave, the switching unit 11 does not switch the 2 or 4 GHz band to the 5 GHz band. You can leave it. The switching unit 11 can switch to the 5 GHz band when the reception strength of the 5 GHz band radio wave becomes higher than the reception strength of the 2.4 GHz band radio wave.
  • the radio wave condition of the radio frequency band to which the switching unit 11 refers is not limited to the reception intensity of radio waves of the radio frequency band.
  • the switching unit 11 may switch the radio frequency band with reference to the status of the radio wave other than the reception intensity of the radio wave.
  • the 5 GHz band includes wireless frequency bands such as W52 and W53 which can not be used outdoors.
  • wireless frequency bands such as W52 and W53 which can not be used outdoors.
  • radio frequency bands such as W56 that can be used outdoors, but can not be used when radio waves are detected by a weather radar or the like in radio communication.
  • the switching unit 11 may switch from the 2.4 GHz band to the 5 GHz band. In addition, when the wireless communication unit 20 does not detect a radar wave, the switching unit 11 may switch the 2.4 GHz band to the 5 GHz band.
  • the switching unit 11 may switch from the 2.4 GHz band to the 5 GHz band only when the radio wave condition in the 5 GHz band is better than the radio wave condition in the 2.4 GHz band.
  • wireless communication can be performed in a more preferable wireless frequency band.
  • the switching unit 11 uses the terminal instead of comparing the radio wave conditions of the 2.4 GHz band and the 5 GHz band to select the radio frequency band. Depending on the conditions, it may be determined whether to switch the radio frequency band.
  • the terminal use condition is selected by the operating application.
  • the terminal use condition for example, the following two cases can be mentioned.
  • the switching unit 11 selects a 2.4 GHz band radio frequency band, and performs wired communication between the smartphone 1 and the external HDD 50 as USB 3. Switch from wired communication conforming to the x standard to wired communication conforming to the USB 2.0 standard. That is, the switching unit 11 gives priority to the wireless communication speed, and selects to sacrifice the USB communication speed.
  • the switching unit 11 selects the 5 Gz band radio frequency band. That is, the switching unit 11 gives priority to the USB communication speed, and selects to sacrifice the wireless communication speed.
  • the switching unit 11 switches from the 2.4 GHz band to the 5 GHz band, but this embodiment is not limited to this. In the present embodiment, the switching unit 11 can switch from an arbitrary radio frequency band to another arbitrary radio frequency band.
  • the switching unit 11 may switch from the 5 GHz band to the 2.4 GHz band.
  • the switching unit 11 may perform the following operation.
  • the switching unit 11 first measures and stores the wireless communication speed in the 2.4 GHz band. Subsequently, after switching to the 5 GHz band, the switching unit 11 measures the wireless communication speed in the 5 GHz band and compares it with the wireless communication speed in the 2.4 GHz band. When the switching unit 11 determines that the wireless communication speed in the 5 GHz band is slower than the wireless communication speed in the 2.4 GHz band, the switching unit 11 may return the 5 GHz band to the 2.4 GHz band.
  • the smartphone 1 and the wireless LAN router 30 can perform wireless communication in a more preferable wireless frequency band.
  • the switching unit 11 switches the radio frequency band, but in the present embodiment, the switching unit 11 may further switch the USB standard in addition to the radio frequency band.
  • the switching unit 11 determines not to switch the 2.4 GHz band to the 5 GHz band, or determines to switch the 5 GHz band to the 2.4 GHz band. In these cases, the switching unit 11 performs wired communication between the smartphone 1 and the external HDD 50 as USB 3.
  • the wired communication conforming to the x standard may be switched to the wired communication conforming to the USB 2.0 standard.
  • the switching unit 11 can perform wireless communication while maintaining a constant communication speed.
  • the switching unit 11 may switch seamlessly when switching from the 2.4 GHz band to the 5 GHz band.
  • the antennas 21 and 22 of the wireless communication unit 20 and the antennas 31 and 32 of the wireless LAN router 30 separately communicate with radio waves of 2.4 GHz band and radio waves of 5 GHz band.
  • the switching unit 11 sets the radio frequency band in which the antenna 22 and the antenna 32 communicate from the 2.4 GHz band. It may be switched to the 5 GHz band.
  • the antenna 22 and the antenna 32 In order for the antenna 22 and the antenna 32 to communicate in the 5 GHz band, it is necessary to perform necessary procedures in advance using Dynamic Frequency Selection (DFS) or the like, during which the antenna 22 can not communicate with the antenna 32.
  • DFS Dynamic Frequency Selection
  • the wireless communication unit 20 and the wireless LAN router 30 do not enter the stop state. As a result, the smartphone 1 and the wireless LAN router 30 can perform stable wireless communication, and problems such as communication disconnection can be avoided.
  • the wireless communication unit 20 communicates with the wireless LAN router 30, which performs wireless communication with the Internet 40, with a radio wave of a predetermined radio frequency band and a radio wave of another radio frequency band.
  • the wireless communication unit 20 communicates with the antennas 31 and 32 of the wireless LAN router 30 via the antennas 21 and 22 with radio waves of 2.4 GHz band and radio waves of 5 GHz band.
  • the wireless communication unit 20 communicates with the wireless LAN router 30 at 2.4 GHz or 5 GHz, it is preferable that both of the antennas 21 and 22 communicate in the same wireless frequency band.
  • the switching unit 11 switches the radio frequency band, it is preferable that the radio communication unit 20 operate the antennas 21 and 22 completely independently by DBS (Dual Band Simultaneous) operation. That is, when the switching unit 11 switches the radio frequency band, it is preferable that the radio communication unit 20 communicate in the radio frequency band as it is with one antenna and communicate in the radio frequency band after switching with the other antenna. .
  • DBS Dual Band Simultaneous
  • the antenna 21 of the wireless communication unit 20 communicates with the antenna 31 of the wireless LAN router 30 via radio waves of 2.4 GHz
  • the antenna 22 communicates with the antenna 32 of the wireless LAN router 30 via radio waves of 5 GHz. Is preferred.
  • the switching unit 11 seamlessly connects the 2.4 GHz band to the 5 GHz band. Can be switched to
  • Control processing (control method) of the control unit 10 of the smartphone 1 according to the present embodiment will be described with reference to FIG. Drawing 2 is a flow chart which shows an example of a flow of control processing in smart phone 1 concerning this embodiment.
  • Step S101 The external HDD 50 and the smartphone 1 are USB3.
  • the determination unit 12 in the control unit 10 of the smartphone 1 determines that the external HDD 50 and the smartphone 1 are USB3. It is determined that wired communication conforming to the x standard is being performed (determination step).
  • Step S102 The switching unit 11 in the control unit 10 checks which of the 2.4 GHz band and 5 GHz band the wireless communication is being performed between the smartphone 1 and the wireless LAN router 30.
  • step S102 When the switching unit 11 confirms that the smartphone 1 and the wireless LAN router 30 perform wireless communication in the 2.4 GHz band (Yes in step S102), the process proceeds to step S103.
  • the switching unit 11 confirms that the smartphone 1 and the wireless LAN router 30 do not perform wireless communication in the 2.4 GHz band and perform wireless communication in the 5 GHz band (No in step S102), the process proceeds to step S107. move on.
  • Step S103 If the smartphone 1 and the wireless LAN router 30 perform wireless communication in the 2.4 GHz band, can the switching unit 11 perform wireless communication between the smartphone 1 and the wireless LAN router 30 in the 5 GHz band? Check if it is not.
  • the switching unit 11 determines that wireless communication can not be performed in the 5 GHz band.
  • step S103 When the switching unit 11 determines that the smartphone 1 and the wireless LAN router 30 can perform wireless communication in the 5 GHz band (Yes in step S103), the process proceeds to step S104. When the switching unit 11 determines that the smartphone 1 and the wireless LAN router 30 can not perform wireless communication in the 5 GHz band (No in step S103), the process proceeds to step S109.
  • Step S104 If the switching unit 11 determines that the smartphone 1 and the wireless LAN router 30 can perform wireless communication in the 5 GHz band, the switching unit 11 changes the wireless frequency band from 2.4 GHz to 5 GHz. Switch (switching process).
  • Step S105 After switching from the 2.4 GHz band to the 5 GHz band, the switching unit 11 checks whether the communication speed of the wireless communication has increased. If the switching unit 11 confirms that the wireless communication speed has increased (Yes in step S105), the process proceeds to step S107. When the switching unit 11 confirms that the wireless communication speed is not high (No in step S105), the process proceeds to step S106.
  • Step S106 If the switching unit 11 determines that it is desirable to perform wireless communication in the 2.4 GHz band rather than the 5 GHz band (Yes in step S106), the process proceeds to step S108. If it is determined that the switching unit 11 desirably performs wireless communication in the 5 GHz band rather than the 2.4 GHz band, and performs wireless communication in the 2.4 GHz band (No in step S106), the process proceeds to step S107. .
  • the switching unit 11 determines whether it is desirable to perform wireless communication in the 2.4 GHz band rather than the 5 GHz band, for example, based on the above-described terminal use condition.
  • Step S107 The switching unit 11 determines not to switch the radio frequency band so that the smartphone 1 and the wireless LAN router 30 perform wireless communication in the 5 GHz band.
  • Step S108 If the switching unit 11 determines that the 2.4 GHz band is preferable to the 5 GHz band, the switching unit 11 returns the radio frequency band to the 2.4 GHz band.
  • the switching unit 11 performs wired communication between the smartphone 1 and the external HDD 50 as USB 3.
  • the wired communication conforming to the x standard may be switched to the wired communication conforming to the USB 2.0 standard.
  • the switching unit 11 can perform wireless communication while maintaining a constant communication speed.
  • Step S109 The switching unit 11 determines not to switch the radio frequency band so that the smartphone 1 and the wireless LAN router 30 perform wireless communication in the 2.4 GHz band.
  • the switching unit 11 performs wired communication between the smartphone 1 and the external HDD 50 as in the case of USB 3.
  • the wired communication conforming to the x standard may be switched to the wired communication conforming to the USB 2.0 standard.
  • control unit 10 including the switching unit 11 and the determination unit 12 ends the control processing.
  • the function of the switching unit in the control unit of the electronic device is not limited to the function of the switching unit 11 in the control unit 10 of the smartphone 2 according to the first embodiment.
  • the function of the switching unit may have a further function as the switching unit 14 of the control unit 13 in the smartphone 2 according to the second embodiment.
  • FIG. 3 is a block diagram showing the main configuration of the smartphone 2 according to the present embodiment.
  • the smartphone 2 according to the present embodiment includes a control unit 13, a USB port 52, and a wireless communication unit 20.
  • Control unit 13 The control unit 13 includes a switching unit 14 instead of the switching unit 11. Except for this point, the control unit 13 has the same configuration as the control unit 10.
  • the smartphone 2 and the external HDD 50 are USB3.
  • the switching unit 14 switches the radio frequency band after the following determination is made.
  • the switching unit 14 compares a value obtained by subtracting a predetermined threshold value from the reception strength of radio waves in a predetermined radio frequency band with the reception strength of radio waves in another radio frequency band. Then, the switching unit 14 determines whether to switch the predetermined radio frequency band to another radio frequency band.
  • the switching unit 14 compares the value obtained by subtracting the threshold C from the reception strength A of the 2.4 GHz band radio wave with the reception strength B of the 5 GHz band radio wave. Then, when the value obtained by subtracting the threshold C from the reception strength A of the 2.4 GHz band radio wave is smaller than the value of the reception strength B of the 5 GHz band radio wave, that is, when the relation of A ⁇ C ⁇ B is satisfied. , And the switching unit 14 switches to the 5 GHz band.
  • the switching unit 11 compares the reception intensity A of the 2.4 GHz band radio wave with the reception intensity B of the 5 GHz band radio wave. When the relationship of A ⁇ B is satisfied, the switching unit 11 switches from the 2.4 GHz band to the 5 GHz band.
  • the switching unit 14 of the control unit 13 in the smartphone 2 according to the present embodiment is USB3. When wired communication conforming to a predetermined standard such as the x standard is started, the conditions for switching to the 5 GHz band are relaxed.
  • the switching unit 14 can easily switch to the 5 GHz band as compared with the switching performed in (the application example 1 of the switching unit 11). By thus facilitating switching to the 5 GHz band, the switching unit 14 can more quickly compare the communication speeds of the 2.4 GHz band and the 5 GHz band, and switch to a more preferable radio frequency band.
  • the wireless communication unit 20 of the smartphone 2 and the wireless LAN router 30 perform wireless communication in the 5 GHz band, and when satisfying the relationship of ACBB, the 5 GHz band to 2.4 GHz You may switch to the band.
  • the switching unit 14 may switch the radio frequency band with further reference to the status of radio waves other than the reception intensity of radio waves in (the application example 1 of the switching unit 11) of the first embodiment.
  • the switching unit 14 connects the smartphone 2 and the external HDD 50 to USB 3. Even if wired communication conforming to a predetermined standard such as the x standard is completed, the threshold C is kept provided when the USB cable 60 is connected. Further, when detecting that the USB cable 60 connected between the USB port 51 and the USB port 52 has been removed, the switching unit 14 releases the threshold C.
  • Control processing (control method) of the control unit 13 of the smartphone 2 according to the present embodiment will be described with reference to FIGS. 4 and 5.
  • Drawing 4 is a flow chart which shows an example of the flow of processing which sets up threshold C used for control of control part 13 of smart phone 2 concerning this embodiment.
  • FIG. 5 is a flowchart showing an example of the flow of processing for controlling the control unit 13 of the smartphone 2.
  • Step S201 The external HDD 50 and the smartphone 2 are USB3.
  • the determination unit 12 in the control unit 13 determines that the external HDD 50 and the smartphone 2 are USB3. It is determined that wired communication conforming to the x standard is being performed (determination step).
  • Step S202 The switching unit 14 in the control unit 13 sets a threshold C when determining the reception intensity of the radio wave received by the antennas 21 and 22 of the wireless communication unit 20.
  • the switching unit 14 sets a threshold C, which is a predetermined value to be subtracted from the reception intensity A of the 2.4 GHz band radio wave, to compare with the reception intensity B of the 5 GHz band radio wave.
  • Step S203 If the switching unit 14 detects that the USB cable 60 has been removed (Yes in Step S203), the process proceeds to Step S204. When the switching unit 14 does not detect that the USB cable 60 has been removed (No in step S203), the switching unit 14 returns to step S203, and maintains the state in which the threshold C is provided.
  • Step S204 When detecting that the USB cable 60 has been removed, the switching unit 14 releases the threshold C when determining the reception intensity of the radio wave received by the antennas 21 and 22 of the wireless communication unit 20.
  • the switching unit 14 cancels the threshold C, which is a predetermined value to be subtracted from the reception intensity A of the 2.4 GHz band radio wave, to compare with the reception intensity B of the 5 GHz band radio wave.
  • step S204 the switching unit 14 ends the process of setting the threshold C.
  • the antennas 21 and 22 of the wireless communication unit 20 in the smartphone 2 receive a radio wave of 2.4 GHz band and a radio wave of 5 GHz band from the wireless LAN router 30, and the switching unit 14 acquires data of the radio wave.
  • the switching unit 14 in the control unit 13 executes the following steps S211 to S213.
  • Step S211 The switching unit 14 acquires the reception strength A of the 2.4 GHz band radio wave and the reception strength B of the 5 GHz band radio wave.
  • Step S212 The switching unit 14 compares the value obtained by subtracting the threshold C from the reception strength A of the 2.4 GHz band radio wave with the value of the reception strength B of the 5 GHz band radio wave. Then, the switching unit 14 confirms whether the relationship of A ⁇ C ⁇ B is satisfied.
  • step S212 If the relationship of A ⁇ C ⁇ B is satisfied (Yes in step S212), the switching unit 14 proceeds to step S213. If the relationship of A ⁇ C ⁇ B is not satisfied, that is, if the relationship of A ⁇ C ⁇ B is satisfied (No in step S212), the switching unit 14 proceeds to step S214.
  • Step S213 When the wireless communication unit 20 of the smartphone 2 and the wireless LAN router 30 perform wireless communication in the 2.4 GHz band, the switching unit 14 determines whether to switch to the 5 GHz band.
  • the switching unit 14 receives the reception intensity A of the 2.4 GHz band radio wave and the reception intensity B of the 5 GHz band radio wave in steps S102 to S109 in [Control processing of the control unit 10] of the first embodiment. Perform processing other than comparing with.
  • Step S214 When the relationship of A ⁇ C ⁇ B is not satisfied, that is, when the relationship of A ⁇ C ⁇ ⁇ B is satisfied, the switching unit 14 adds the wireless communication unit 20 of the smartphone 2 and the wireless LAN router 30 to each other. Make wireless communication in 4 GHz band.
  • the switching unit 14 performs 2.4 GHz on the wireless communication unit 20 and the wireless LAN router 30. Make wireless communication with the band.
  • the switching unit 14 switches from the 5 GHz band to the 2.4 GHz band (switching step).
  • control unit 13 including the switching unit 14 and the determination unit 12 ends the control processing.
  • control blocks of the smartphones 1 and 2 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like And may be realized by software using a CPU (Central Processing Unit).
  • a logic circuit hardware
  • IC chip integrated circuit
  • CPU Central Processing Unit
  • the smartphones 1 and 2 are a CPU that executes instructions of a program that is software that realizes each function, and a ROM (Read Only Memory) in which the program and various data are readably recorded by a computer (or CPU).
  • a storage device (these are referred to as “recording media”), a RAM (Random Access Memory) for developing the program, and the like are provided.
  • the object of the present invention is achieved by the computer (or CPU) reading and executing the program from the recording medium.
  • the recording medium “a non-temporary tangible medium”, for example, a tape, a disk, a card, a semiconductor memory, a programmable logic circuit or the like can be used.
  • the program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program.
  • any transmission medium communication network, broadcast wave, etc.
  • one aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.
  • the information processing apparatus (control unit 10) performs wired communication with another electronic device (external HDD 50) via a USB (Universal Serial Bus) cable (60), and a wireless device (
  • An information processing apparatus provided in an electronic device (smartphone 1) performing wireless communication with a wireless LAN router 30) in a predetermined wireless frequency band, wherein the electronic device and the other electronic device conform to a predetermined USB standard
  • a determination unit (12) that determines whether or not wired communication is performed, and a switching unit (11) that switches the predetermined radio frequency band to another radio frequency band with reference to at least the determination result by the determination unit And.
  • the electronic device transmits radio waves of the predetermined radio frequency band from the radio device and the radio frequency band of the other radio frequency band via the wireless communication unit.
  • a radio wave is received, and the electronic device receives a radio wave of the predetermined radio frequency band and a radio wave of the other radio frequency band from the radio device via the wireless communication unit, and the switching unit
  • the radio wave status of the predetermined radio frequency band may be compared with the radio wave status of the other radio frequency band to determine whether to switch the predetermined radio frequency band to another radio frequency band.
  • wireless communication can be performed in a more preferable wireless frequency band.
  • the switching unit compares the reception strength of radio waves of the predetermined radio frequency band with the reception strength of radio waves of the other radio frequency band. It may be determined whether to switch the predetermined radio frequency band to another radio frequency band.
  • wireless communication can be performed in a more preferable wireless frequency band.
  • the switching section (14) performs wired communication in which the electronic device and the another electronic device conform to a predetermined USB standard.
  • the determination unit determines that the above is performed, a value obtained by subtracting a predetermined threshold value from the reception intensity of the radio wave of the predetermined radio frequency band, and the reception intensity of the radio wave of the other radio frequency band By comparison, it may be determined whether to switch the predetermined radio frequency band to the other radio frequency band.
  • the switching unit compares the communication speeds of the 2.4 GHz band and the 5 GHz band more quickly, and switches to a more suitable radio frequency band. be able to.
  • the switching unit is performed between the wireless device and the electronic device in the another radio frequency band.
  • the other radio frequency band may be switched to the predetermined radio frequency band.
  • another radio frequency band is again set to the predetermined radio frequency band. It can be switched. Accordingly, the electronic device and the wireless device can perform wireless communication in a more preferable wireless frequency band.
  • the switching unit determines not to switch the predetermined radio frequency band to the other radio frequency band.
  • the wire communication between the electronic device and the another electronic device may be made from the wire communication conforming to the predetermined USB standard. It may be switched to wired communication conforming to the USB standard.
  • the electronic device can perform wireless communication with the wireless device while maintaining a constant communication speed.
  • the electronic device is connected from the wireless device to the predetermined radio frequency band via the wireless communication unit (20).
  • the radio wave and the radio wave of the other radio frequency band are separately received, and the switching unit maintains the state where the radio communication unit receives the radio wave of the predetermined radio frequency band from the radio device,
  • the predetermined radio frequency band may be switched to another radio frequency band.
  • the predetermined radio frequency band it is possible to switch the predetermined radio frequency band to another radio frequency band while maintaining the state in which the radio communication unit receives radio waves of the predetermined radio frequency band from the radio device. That is, it is possible to switch seamlessly from a predetermined radio frequency band to another radio frequency band. Thereby, stable wireless communication can be performed. This makes it possible to avoid problems such as communication disconnection.
  • the electronic device (smartphone 1) according to aspect 8 of the present invention may include the information processing apparatus according to any one of the above aspects 1 to 7.
  • the electronic device can preferably include the information processing device.
  • the electronic device can achieve the same effect as the information processing device.
  • a control method of an information processing apparatus performs wired communication with another electronic device via a USB (Universal Serial Bus) cable, and performs wireless communication with a wireless device in a predetermined radio frequency band.
  • a control method of an information processing apparatus provided in an electronic device comprising: a determination step of determining whether the electronic device and the another electronic device are performing wired communication conforming to a predetermined USB standard; Switching the predetermined radio frequency band to another radio frequency band at least with reference to the determination result of the process.
  • the information processing apparatus may be realized by a computer.
  • the computer is operated as each unit (software element) included in the information processing apparatus, and the information processing apparatus is operated by the computer.
  • a control program of an information processing apparatus to be realized and a computer readable recording medium recording the same also fall within the scope of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Telephone Function (AREA)

Abstract

La présente invention vise à empêcher des problèmes tels que le ralentissement ou l'interruption de communication sans fil entre un dispositif électronique et un dispositif sans fil même lorsque le dispositif électronique est en communication filaire avec un autre dispositif électronique. Une unité de commande (10) comprend : une partie de détermination (12) pour déterminer si un disque dur externe (50) et un téléphone intelligent (1) sont engagés dans une communication filaire conforme à une norme USB prescrite ; et une partie de commutation (11) pour se référer au résultat de détermination de l'unité de détermination (12) et commuter une bande de fréquences sans fil prescrite vers une autre bande de fréquences sans fil.
PCT/JP2018/025690 2017-07-11 2018-07-06 Appareil de traitement d'informations, dispositif électronique, procédé de commande pour appareil de traitement d'informations et, programme de commande Ceased WO2019013124A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017135635 2017-07-11
JP2017-135635 2017-07-11

Publications (1)

Publication Number Publication Date
WO2019013124A1 true WO2019013124A1 (fr) 2019-01-17

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PCT/JP2018/025690 Ceased WO2019013124A1 (fr) 2017-07-11 2018-07-06 Appareil de traitement d'informations, dispositif électronique, procédé de commande pour appareil de traitement d'informations et, programme de commande

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Country Link
WO (1) WO2019013124A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021068927A (ja) * 2019-10-17 2021-04-30 株式会社デンソー 通信システム
CN113677009A (zh) * 2020-05-15 2021-11-19 古野电气株式会社 接入点、接入点的控制方法以及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010283503A (ja) * 2009-06-03 2010-12-16 Alps Electric Co Ltd 無線通信機器及び無線通信方法
JP2014068134A (ja) * 2012-09-25 2014-04-17 Nec Access Technica Ltd 無線通信端末、無線通信装置、無線通信システム、周波数帯切替方法
JP2015144417A (ja) * 2013-12-27 2015-08-06 パナソニック株式会社 通信装置及び通信方法
JP2016025538A (ja) * 2014-07-23 2016-02-08 レノボ・シンガポール・プライベート・リミテッド 電子機器のアンテナ・システムおよびアイソレーションを強化する方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010283503A (ja) * 2009-06-03 2010-12-16 Alps Electric Co Ltd 無線通信機器及び無線通信方法
JP2014068134A (ja) * 2012-09-25 2014-04-17 Nec Access Technica Ltd 無線通信端末、無線通信装置、無線通信システム、周波数帯切替方法
JP2015144417A (ja) * 2013-12-27 2015-08-06 パナソニック株式会社 通信装置及び通信方法
JP2016025538A (ja) * 2014-07-23 2016-02-08 レノボ・シンガポール・プライベート・リミテッド 電子機器のアンテナ・システムおよびアイソレーションを強化する方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021068927A (ja) * 2019-10-17 2021-04-30 株式会社デンソー 通信システム
CN113677009A (zh) * 2020-05-15 2021-11-19 古野电气株式会社 接入点、接入点的控制方法以及存储介质

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