JP5293618B2 - Wireless communication device - Google Patents

Description

  The present invention relates to a wireless communication apparatus.

In recent years, electronic devices represented by mobile phones and PCs are Bluetooth (registered trademark), wireless LA
It has come to have a plurality of wireless communication functions such as N and NFC (Near Field Communication). In such an electronic device, for example, using a close proximity wireless communication method such as NFC, it is possible to communicate over a longer distance than a close proximity wireless communication method such as Bluetooth or wireless LAN, and relatively high speed communication is possible. A technology for exchanging setting information of a communication method to execute authentication processing and taking over communication to Bluetooth or a wireless LAN for data transmission / reception (Connection Handover, hereinafter referred to as handover) has been proposed (for example, (See Patent Document 1 and Non-Patent Document 1).

JP 2008-160856 A

Connection Handover 1.1 (NFC Forum TM)

In the specification of handover defined in Non-Patent Document 1, a method called Negotiated Handover is shown as one method of handover that takes over communication to another high-speed standard using NFC. In Negotiated Handover, one or more communication standards (Alternative Carrier) of a handover destination are designated from a terminal (Requester) that requests a counterpart device for handover. The Requester can notify the opposite device (Selector) of the power status of the handover destination together with information indicating the designated handover destination. The power state of the handover destination is classified into four states: a power-on state (active), a power-on processing state (activating), a power-off state (inactive), and an unknown state (unknown). Is specified and notified to the opposite device. On the other hand, the selector that receives the request from the requester selects one or more of the one or more handover destinations notified from the requester, and sets the power state of the handover destination together with information indicating the selected handover destination. To notify.

FIG. 5 is an example when handing over from NFC to Bluetooth. After two NFC-compatible wireless communication apparatuses are brought close to the NFC communicable range and NFC communication is established, a handover request is transmitted from the Requester to the Selector. In the example of FIG. 5, the handover request indicates that Bluetooth is specified as the handover destination and the Bluetooth power supply is in an ON state, and the response transmitted by the Selector in response to the handover request is Bluetooth as the handover destination. Is selected, indicating that the Bluetooth power supply is ON. Furthermore, since these handover requests / responses can be used to notify the Bluetooth address selected as the handover destination, the type of device, the hash used for pairing, and the random value, these information can be used between the Requester and the Selector. Bluetooth pairing with can be done. Then, after the pairing is completed, data communication by Bluetooth becomes possible.

In the above example, Bluetooth is designated as the handover destination from the Requester. However, it is possible to designate not only Bluetooth but also a wireless LAN as the handover destination. In other words, there are three types of handover destination information notified to the Selector by a handover request: (Bluetooth), (Wireless LAN), and (Bluetooth and Wireless LAN). As described above, when a plurality of handover destinations can be specified, Patent Document 1 and Non-Patent Document 1 do not have a determination mechanism for specifying a handover destination on the Requester side. Therefore, there is a problem that the determination of the handover destination depends on the selector, such that the requester notifies the selector of the communication means that can be handed over, and the handover destination is determined by the selector's determination.

  Therefore, an object of the present invention is to provide a wireless communication apparatus that can determine a handover destination communication means when requesting a handover to take over communication from a communication means currently connected to another terminal.

In order to achieve the above object, a wireless communication apparatus according to the present invention includes a first communication unit that communicates with a counterpart device, and a plurality of other communication units that can take over communication from the first communication unit. A power supply state storage means for storing the power supply state and a power supply state stored by the power supply state storage means when the communication is taken over from the first communication means to any of the other communication means. A control means for controlling the communication means whose power state is ON to be transmitted by the first communication means for transmitting a request for taking over the communication to the opposite device as a communication takeover destination , and an operation from the user. An operation means for accepting, wherein the control means confirms a power supply state stored by the power supply state storage means for a predetermined communication means of the plurality of communication means, and If the power supply state of a predetermined communication means is ON, a request for taking over communication to the opposite device is transmitted to the opposite device by using the predetermined communication means as a communication takeover destination, and the predetermined communication means is transmitted to the opposite device. If the power state of the communication means is not ON, a request for taking over the communication to the opposite device is made by the first communication means with the communication means selected from the user by the operation means as the takeover destination of communication. It is characterized by controlling to transmit to the device .

  According to the present invention, it is possible to provide a wireless communication apparatus that determines a handover destination communication unit when requesting a handover that takes over communication from a communication unit currently connected to another terminal.

1 is a block diagram showing a configuration of a mobile phone according to an embodiment of the present invention. The flowchart which shows a process when the mobile telephone which concerns on embodiment of this invention produces | generates the handover request | requirement according to the power supply state of Bluetooth. 6 is an example of a user interface that is displayed on the display unit by the mobile phone according to the embodiment of the present invention in order to select a handover destination communication unit. The sequence diagram which showed the process in case the power supply of Bluetooth is ON in the mobile telephone which concerns on embodiment of this invention. The figure which showed the outline | summary of the process when communication between terminals hands over from NFC to Bluetooth.

Embodiments of the present invention will be described below with reference to the drawings. The wireless communication device according to the present invention may be a device having a plurality of wireless communication means, and may be a device such as a mobile phone, a smartphone, or a PC. In the following description, a mobile phone will be described as an example. The mobile phone according to the present embodiment is a device that transmits a handover request to the opposite device, such as Requester shown in FIG. 5, and will be described as being capable of NFC, Bluetooth, and wireless LAN communication.

FIG. 1 is a block diagram showing a configuration of a mobile phone according to the present embodiment. The mobile phone 1 includes a control unit 10 that controls the entire mobile phone 1. The NFC communication unit 20, the Bluetooth communication unit 30, the wireless LAN communication unit 40, the display unit 50, and the operation unit 6 controlled by the control unit 10.
0 and a storage unit 70. The mobile phone 1 also has a communication unit including an antenna for communicating with a base station accommodated in a public telephone network, a speaker and a microphone used for voice communication, etc., but are omitted in FIG.

The NFC communication unit 20 includes physical NFC wireless communication means such as an antenna for NFC communication, and performs NFC communication according to the control of the control unit 10. Bluetooth communication unit 30
Is configured by physical Bluetooth wireless communication means such as an antenna for Bluetooth communication, and performs Bluetooth communication under the control of the control unit 10. The wireless LAN communication unit 40 includes physical wireless LAN wireless communication means such as an antenna for wireless LAN communication, and performs wireless LAN communication according to the control of the control unit 10. The display unit 50 is configured by an LCD, an organic EL display, or the like, and displays characters and images on the screen under the control of the control unit 10. The operation unit 60 includes a key, a touch sensor, and the like, receives an input operation from the user, and transmits input contents to the control unit 10. The storage unit 70 stores various applications and data used in the mobile phone 1.

The control unit 10 includes an NFC communication control unit 11, a Bluetooth communication control unit 12, and a wireless LAN communication control unit 13 in order to implement a handover from NFC communication to another communication unit.

The NFC communication control unit 11 includes a power source information acquisition unit 11a, a handover data generation unit 11b, a handover data transmission unit 11c, an NFC data transmission unit 11d, and an NFC data reception unit that are used for handover processing from NFC communication to other communication units. There are means 11e, handover data receiving means 11f, and NFC communication establishment notifying means 11g. The power information acquisition means 11a is a wireless communication means (for example, Bluetooth) that can be designated as a handover destination
Get power information for. The handover data generating unit 11b generates a handover request according to a standard related to a handover from NFC to another wireless communication unit. The handover data transmission unit 11c transmits the handover request generated by the handover data generation unit 11b to the opposite device via the NFC communication unit 20. The NFC data transmission unit 11d transmits not only the handover request generated by the handover data generation unit 11b but also data that can be transmitted to the opposite device by NFC wireless communication. The NFC data receiving unit 11e receives data transmitted from the opposite device by NFC wireless communication. The handover data receiving unit 11f receives a handover request from the data received by the NFC data receiving unit 11e. The NFC communication establishment notifying unit 11g notifies at least one of the Bluetooth communication control unit 12 and the wireless LAN communication control unit 13 that NFC communication with the opposite device has been established.

The Bluetooth communication control means 12 includes an NFC communication establishment reception means 12a, a Bluetooth power information management means 12b, and a Bluetooth data transmission / reception means 12c as means for performing handover from NFC communication. The NFC communication establishment receiving unit 12a receives a notification from the NFC communication establishment notifying unit 11g when an NFC communication link is established. The Bluetooth power information management unit 12b manages the ON / OFF state of Bluetooth.

  The wireless LAN communication control means 13 includes NFC communication establishment reception means 13a, wireless LAN power information management means 13b, and wireless LAN data transmission / reception means 13c as means for performing handover from NFC communication. The NFC communication establishment receiving unit 13a receives a notification from the NFC communication establishment notifying unit 11g when an NFC communication link is established. The wireless LAN power information management unit 13b manages the ON / OFF state of the wireless LAN.

Processing executed by the control unit 10 when the mobile phone 1 having the above configuration generates a handover request according to the Bluetooth power supply state will be described with reference to the flowchart of FIG.

  The mobile phone 1 establishes NFC communication between the mobile phone 1 and the opposing device when the distance to the opposing device that supports NFC communication approaches a predetermined value or less (S11). Since NFC communication is described in Japanese Patent Laid-Open No. 2008-160856, detailed description thereof is omitted.

The mobile phone 1 that has established NFC communication with the opposite device acquires the Bluetooth power state from the Bluetooth power information management unit 12b by the power information acquisition unit 11a (S12), and whether or not the Bluetooth power source is in an ON state. Is determined (S13). If the Bluetooth power state is ON (Yes in S13), the handover data generation unit 11b generates a handover request with Bluetooth as the handover destination and transmits it to the opposite device (S14).
Then, the Bluetooth connection with the opposite device is established (S17).

On the other hand, when the Bluetooth power supply state acquired by the power supply information acquisition unit 11a from the Bluetooth power supply information management unit 12b is not ON (No in S13), a user interface for causing the handover destination communication unit to be selected is displayed on the display unit 50. It is displayed (S15). FIG. 3 shows an example of a user interface displayed on the display unit 50 in order to select a handover destination communication means. In the case of the cellular phone 1, the communication means that can be selected as the handover destination are Bluetooth and wireless LAN. Therefore, a user interface for selecting one of the two communication means is displayed on the display unit 50, and the operation is performed. A user's selection operation is received by the unit 60. The selection operation accepted by the operation unit 60 is transmitted to the control unit 10. Then, the control unit 10 generates a handover request with the communication unit selected by the user as the handover destination by the handover data generation unit 11b and transmits the handover request to the opposite device (S16), and performs communication by the communication unit selected by the user. Establish (S17).

According to the processing described above, the handover request communication unit can be determined from the handover request source apparatus. If the Bluetooth power source is in the ON state, Bluetooth can be transferred to the handover destination without receiving a user selection operation. Since the handover request described above can be transmitted to the opposite device, the operation burden on the user can be reduced.

FIG. 4 is a sequence diagram showing processing when the Bluetooth power source is ON in the mobile phone 1 that determines the handover destination according to the Bluetooth power source state. When the cellular phone 1 comes close to a range where NFC communication with the opposite device is possible (S51), NFC communication is established (S52). If the Bluetooth power supply is ON (S53, S54), a handover request with Bluetooth as the handover destination is generated (S55), and the generated handover request is transmitted to the opposite device by NFC communication (S56). . In response to this handover request, when a response indicating that Bluetooth is ON is received from the opposite device (S57), connection is established with the opposite device via Bluetooth (S58). In step S57, if the Bluetooth of the opposite device cannot be used (when the notification that the Bluetooth power supply state is inactive is received), the Bluetooth power supply for the opposite device is received from the mobile phone 1 side. ON
It is also possible to request that As shown in the sequence diagram of FIG. 4, the user's operation is only an operation of bringing the mobile phone close to the opposite device in step S51. Therefore, a simple operation for the user can be performed to perform handover from NFC communication to Bluetooth. Can be realized.

For example, when the terminal is connected to a certain device (for example, a headset) via Bluetooth, this Bluetooth connection is disconnected, and when trying to establish a Bluetooth connection with another device (for example, a PC) capable of NFC communication, The Bluetooth power supply of the terminal itself is in an ON state. Therefore, when establishing a Bluetooth connection with another device, even if the user does not receive an operation of designating Bluetooth as a handover destination, by bringing the terminal closer to a distance that allows NFC communication with the other device, Handover to Bluetooth is realized after NFC communication is established.

Further, for example, when the Bluetooth connection is disconnected for some reason when the terminal is connected to the opposite device capable of NFC communication via Bluetooth, the Bluetooth power supply of the terminal is ON. For this reason, by bringing the terminal close to a distance that allows NFC communication with the opposite device, handover to Bluetooth is realized after NFC communication is established. In this way, since reconnection after Bluetooth disconnection is possible without a user's instruction operation, Bluetooth reconnection can be performed quickly.

In the flowchart of FIG. 2, the case where a handover request with Bluetooth as a handover destination is transmitted to the opposite device when the Bluetooth power source is ON has been described. However, the communication means for confirming the power state in steps S12 and S13 is described below. It is not limited to Bluetooth, but may be another communication means (for example, wireless LAN) that the mobile phone 1 has. When confirming the power state of the wireless LAN, it is checked in step S13 whether the power of the wireless LAN is on. If the power of the wireless LAN is on, the wireless LAN is handed over in step S14. The handover request is sent to the opposite device, and communication by the wireless LAN is established in step S17.

In the flowchart of FIG. 2, the power state of one communication unit (Bluetooth) is confirmed. However, the power states of a plurality of communication units may be confirmed. For example, the power state of Bluetooth may be confirmed in step S13, and if the power state of Bluetooth is not ON, the power state of the wireless LAN may be confirmed. In this case, if the Bluetooth power state is not ON and the wireless LAN power state is ON, a handover request with the wireless LAN as the handover destination is transmitted to the opposite device, and the Bluetooth power state is not ON and the wireless power state is not ON. If the power state of the LAN is not ON, a user interface for selecting a handover destination is displayed.

Further, for example, in step S13, the Bluetooth power supply state and the wireless LAN power supply state are confirmed. If one of the power supply states is ON, the communication means whose power supply state is ON is selected as the handover destination, and both When the power supply state is ON, it may be considered that one of the communication means is selected as the handover destination according to the activated application.

In order to select a communication means according to an active application, information for identifying the application and information for identifying a communication means that is likely to be used when the application is activated are stored in association with each other. Stored in the unit 70 in advance. For example, when an application for playing music is used, it is highly likely that the music to be played is transferred to the headset via Bluetooth. In addition, when the Web browser is activated, it is considered that there is a high possibility of receiving Web data through wireless LAN communication with a wireless LAN access point. Therefore, the identification information of the application for music playback is associated with the identification information indicating that it is Bluetooth, and the identification information of the Web browser and the wireless L
The storage unit 70 stores the identification information indicating the AN in association with each other. In this way, by confirming the power supply states of the plurality of wireless communication means, it is possible to further reduce the possibility that a user operation for selecting the handover destination communication means will occur.

By adopting the configuration of such an embodiment, when requesting a handover from the first connected communication means (for example, NFC communication) to another communication means (for example, Bluetooth or wireless LAN), the handover destination communication means can be changed. In addition to being able to make a determination, it is possible to reduce the user's trouble that occurs when determining the communication means of the handover destination.

  In addition, it is not limited to the said embodiment, You may change suitably in the range which does not deviate from the summary of this invention.

1 mobile phone, 10 control unit, 20 NFC communication unit, 30 Bluetooth communication unit, 40
Wireless LAN communication unit, 50 display unit, 60 operation unit, 70 storage unit, 11a power supply information acquisition unit, 11b handover data generation unit, 11c handover data transmission unit, 11d NFC data transmission unit, 11e NFC data reception unit, 11f handover data Reception means, 11g NFC communication establishment notification means, 12a NFC communication establishment reception means, 12b Bluetooth power supply information management means, 12c Bluetooth data transmission / reception means, 13a NFC communication establishment reception means, 13b Wireless LAN power supply information management means, 13c Wireless LAN data transmission / reception means

Claims (2)

A first communication means for communicating with the opposite device;
Power supply state storage means for storing power supply states of a plurality of communication means capable of taking over communication from the first communication means;
When taking over communication from the first communication unit to any of the plurality of communication units, the power state stored in the power state storage unit is confirmed, and the communication unit whose power state is ON is taken over. Control means for controlling the first communication means to transmit a request for taking over communication to the opposite device as a destination ;
An operation means for receiving an operation from the user,
The control means confirms the power state stored by the power state storage means for a predetermined communication means of the plurality of communication means, and if the power state of the predetermined communication means is ON, the predetermined communication means A request for taking over communication to the opposite device by using the communication means as a takeover destination of communication to the opposite device by the first communication means, and if the power state of the predetermined communication means is not ON, the operation means The wireless communication apparatus is configured to control the first communication unit to transmit a request for taking over the communication to the opposite device using the communication unit selected by the user as a communication takeover destination. . A first communication means for communicating with the opposite device;
Power supply state storage means for storing power supply states of a plurality of communication means capable of taking over communication from the first communication means;
When taking over communication from the first communication unit to any of the plurality of communication units, the power state stored in the power state storage unit is confirmed, and the communication unit whose power state is ON is taken over. Control means for controlling the first communication means to transmit a request for taking over communication to the opposite device as a destination;
And an identification information storing means for storing in association with identification information of a plurality of communication means capable of taking over the identification information of an application to be executed and the communication from the first communication means in its own apparatus,
The control means stores the fact that the power supply state is ON by the power supply state storage means for a plurality of communication means among a plurality of communication means capable of taking over communication from the first communication means. If the communication means stored in the identification information storage means in association with the currently executing application is used as a communication takeover destination, the request for taking over the communication to the opposite device is opposed by the first communication means. A wireless communication apparatus that controls transmission to a device.

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