JP2015119426A5 - - Google Patents

Description

Wireless communication apparatus, program, and wireless communication method

  The present disclosure relates to a wireless communication device, a program, and a wireless communication method.

  In recent years, wireless local area networks (LANs) represented by IEEE (Institute of Electrical and Electronics Engineers) 802.11 have become widespread. In addition, there are devices that can operate as a wireless LAN access point, and such devices enable wireless LAN communication between devices. Also, Wi-Fi Direct established by Wi-Fi Alliance enables wireless LAN communication between devices.

  On the other hand, devices having a short-range wireless communication function with a narrow communication range are also widespread. As an example of the near field communication, there is near field communication (NFC). A technique for linking such NFC and wireless LAN communication has also been proposed.

  For example, Patent Document 1 discloses a technology in which information is first transmitted and received between devices through NFC and then Wi-Fi Direct connection is performed.

PCT / JP2013 / 057914

  However, in the conventional techniques including the technique disclosed in Patent Document 1, it takes a lot of time for devices to be connected to each other by wireless LAN communication and to provide or use a service through wireless LAN communication. Can take. Therefore, the convenience for the user of the device can be lowered.

  Therefore, it is desirable to provide a mechanism that allows the provision or use of services through wireless communication to be started more quickly.

  According to the present disclosure, a wireless communication device is configured to transmit connection information used for performing wireless communication according to a predetermined communication method with an IP address and another wireless communication device through short-range wireless communication. There is provided a wireless communication device including an acquisition unit that acquires from the other wireless communication device.

  According to the present disclosure, the program is executed by a processor included in a wireless communication device, and is used to perform wireless communication according to a predetermined communication method with an IP address and another wireless communication device. There is provided a program comprising a procedure for detecting that connection information has been acquired from the other wireless communication device through short-range wireless communication.

  According to the present disclosure, there is provided a wireless communication method, and connection information used for performing wireless communication according to a predetermined communication method with an IP address and another wireless communication device is transmitted through short-range wireless communication. And a step of detecting acquisition from the other wireless communication device.

  As described above, according to the present disclosure, provision or use of services through wireless communication can be started more quickly. The above effects are not necessarily limited, and any of the effects shown in the present specification or other effects that can be grasped from the present specification are exhibited together with or in place of the above effects. May be.

It is explanatory drawing for demonstrating an example of the wireless communication apparatus which provides and uses the service through wireless LAN communication. It is a sequence diagram which shows the 1st example of the flow of a process until provision and utilization of the service through wireless LAN communication are started. It is a sequence diagram which shows the 2nd example of the flow of a process until provision and utilization of the service through wireless LAN communication are started. It is explanatory drawing which shows an example of the schematic structure of the communication system which concerns on 1st Embodiment. It is a block diagram which shows an example of a structure of the 1st radio | wireless communication apparatus which concerns on 1st Embodiment. It is a block diagram which shows an example of a structure of the 2nd radio | wireless communication apparatus which concerns on 1st Embodiment. It is a sequence diagram which shows the 1st example of the schematic flow of the communication control process which concerns on 1st Embodiment. It is a sequence diagram which shows the 2nd example of the schematic flow of the communication control process which concerns on 1st Embodiment. It is explanatory drawing for demonstrating the example of the size of the antenna for near field communication. It is explanatory drawing for demonstrating the example of the size of the antenna for near field communication. 6 is a flowchart illustrating an example of a schematic flow of processing by a wireless communication device according to a first modification of the first embodiment. It is explanatory drawing for demonstrating the mechanism regarding the identification information linked | related with service information. It is explanatory drawing for demonstrating the example of the screen displayed regardless of the presence or absence of a user's operation. It is explanatory drawing for demonstrating the example of the display of the screen which shows abnormality of a radio | wireless communication apparatus. It is explanatory drawing which shows an example of the schematic structure of the communication system which concerns on 2nd Embodiment. It is a block diagram which shows an example of a structure of the 1st radio | wireless communication apparatus which concerns on 2nd Embodiment. It is a block diagram which shows an example of a structure of the 2nd radio | wireless communication apparatus which concerns on 2nd Embodiment. It is a sequence diagram which shows an example of the schematic flow of the communication control process which concerns on 2nd Embodiment. It is a block diagram which shows an example of the schematic structure of the smart phone to which the technique which concerns on this indication can be applied. It is a block diagram which shows an example of schematic structure of the car navigation apparatus with which the technique which concerns on this indication can be applied. FIG. 3 is a block diagram illustrating an example of a schematic configuration of a wireless communication module to which the technology according to the present disclosure can be applied.

  Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

The description will be made in the following order.
1. 1. Introduction First embodiment 2.1. Schematic configuration of communication system 2.2. Configuration of first wireless communication apparatus 2.3. Configuration of second wireless communication apparatus 2.4. Process flow 2.5. First Modification 2.6. Second modification 2.7. Third modification 2.8. Fourth modification example3. Second Embodiment 3.1. Schematic configuration of communication system 3.2. Configuration of first wireless communication apparatus 3.3. Configuration of second wireless communication apparatus 3.4. Process flow 3.5. First Modification 3.6. Second Modification Example 4. Application example 4.1. First application example 4.2. Second application example 4.3. Third application example 5. Summary

<< 1. Introduction >>
First, with reference to FIGS. 1 to 3, an example of a flow of processing until provision and use of a service through wireless LAN communication is started will be described.

(Prerequisite wireless communication device)
FIG. 1 is an explanatory diagram for explaining an example of a wireless communication apparatus that provides and uses a service through wireless LAN communication. Referring to FIG. 1, the radio communication apparatus 10 has a function and NFC functionality of the wireless LAN communication, performs wireless LAN communication via the antenna 11, performs NFC through the antenna 1 2. Also, the wireless communication device 20 has a function and NFC functionality of the wireless LAN communication, performs wireless LAN communication via the antenna 21, performs NFC through the antenna 2 2. For example, the wireless communication device 10 can operate as a wireless LAN access point.

(First example of service provision and use)
FIG. 2 is a sequence diagram showing a first example of a processing flow until provision and use of a service through wireless LAN communication is started.

In this example, the wireless communication device 10 operates as an IEEE802.11 series access point or a Wi-Fi Direct P2P group owner (P2P GO), and the wireless communication device 20 operates as an IEEE802.11 series station. ing. First, when one of the wireless communication device 10 and the wireless communication device 20 comes close to the other, the wireless communication device 10 provides connection information for wireless LAN communication to the wireless communication device 20 through NFC (S31). The connection information includes, for example, an SSID (Service Set Identifier) and a pre-shared key (PSK). As an example, the PSK is WPA2-PSK (Wi-Fi Protected Access 2 Pre-Shared Key).

  Next, the wireless communication device 10 and the wireless communication device 20 transmit and receive a probe request and a probe response through wireless LAN communication (S33). Specifically, the wireless communication device 20 performs scanning in each channel (for example, 1 channel to 14 channels) of the wireless LAN, and transmits a probe request to the wireless communication device 10 when receiving a beacon. Then, the wireless communication device 10 transmits a probe response to the wireless communication device 20.

  Then, the wireless communication device 10 and the wireless communication device 20 establish a secure link in wireless LAN communication (S35). That is, the wireless communication device 10 and the wireless communication device 20 are securely connected to each other. Note that a 4-way handshake is performed when establishing a secure link. The secure link is a link encrypted by the PSK (for example, WPA2-PSK).

  Thereafter, an IP (Internet Protocol) address is assigned (S37). For example, an appropriate IP address is automatically determined so that the wireless communication device 10 and the wireless communication device 20 can communicate according to DHCP (Dynamic Host Configuration Protocol).

  Then, the wireless communication device 10 and the wireless communication device 20 perform service discovery (S39). For example, the wireless communication device 10 and the wireless communication device 20 transmit and receive a service discovery request (Service Discovery Request) and a service discovery response (Service Discovery Response). Thereby, information for specifying the device and the service is transmitted. The information is, for example, a device class and a service class. Note that other information for providing or using the service may also be transmitted and received. Further, when there are a plurality of devices, for example, the user may select one of the plurality of devices. When there are a plurality of services, for example, the user may select one service among the plurality of services.

  Thereafter, the provision and use of the service through the wireless LAN communication between the wireless communication device 10 and the wireless communication device 20 is started (S41).

(Second example of service provision and use)
FIG. 3 is a sequence diagram illustrating a second example of a processing flow until provision and use of a service through wireless LAN communication is started. The second example is a process flow related to DLNA (Digital Living Network Alliance) and Miracast.

In this example, the wireless communication device 10 operates as a Wi-Fi Direct P2P group owner (P2P GO), and the wireless communication device 20 operates as a P2P device. A P2P device is a state that is neither a P2P group owner nor a P2P client. First, when one of the wireless communication device 10 and the wireless communication device 20 comes close to the other, the wireless communication device 10 provides connection information for wireless LAN communication to the wireless communication device 20 through NFC (S51). The connection information includes, for example, a P2P (peer-to-peer) device address.

  Next, the wireless communication device 10 and the wireless communication device 20 perform device discovery (S53). For example, the wireless communication device 10 and the wireless communication device 20 transmit and receive a probe request and a probe response through wireless LAN communication.

  Further, the wireless communication device 10 and the wireless communication device 20 can optionally perform service discovery (S55). Thereby, information for specifying the device and the service is transmitted. The information is, for example, a device class and a service class. Note that other information for providing or using the service may also be transmitted and received. Further, when there are a plurality of devices, for example, the user may select one of the plurality of devices. When there are a plurality of services, for example, the user may select one service among the plurality of services.

  Then, the wireless communication device 10 and the wireless communication device 20 perform provision discovery or invitation (S57). For example, in the case of provision discovery, the wireless communication device 20 transmits a provision discovery request to the wireless communication device 10, and the wireless communication device 10 wirelessly transmits a provision discovery response. Transmit to the communication device 20. On the other hand, in the invitation case, the wireless communication device 10 transmits an invitation request (Invitation Request) to the wireless communication device 20, and the wireless communication device 20 transmits an invitation response (Invitation Response) to the wireless communication device 10.

  Thereafter, the encryption key information is shared between the wireless communication device 10 and the wireless communication device 20 by WSC (Wi-Fi Simple Configuration) exchange (S59). Thereafter, the wireless communication terminal 20 becomes a P2P client.

  Then, the wireless communication device 10 and the wireless communication device 20 establish a secure link in wireless LAN communication (S61). That is, the wireless communication device 10 and the wireless communication device 20 are securely connected to each other. The secure link is a link encrypted by the PSK (for example, WPA2-PSK).

  Thereafter, an IP address is assigned (S63). For example, a subnet mask and a DNS server address are transmitted and received, and the IP addresses of both the wireless communication device 10 and the wireless communication device 20 are determined.

  In addition, the wireless communication device 10 and the wireless communication device 20 perform service negotiation (S65). In service negotiation, information necessary for providing and using a service is transmitted and received. As an example, in the Miracast case, capability negotiation (Capability Negotiation) is performed as service negotiation, and capability information related to the service is transmitted and received.

  Thereafter, the provision and use of the service through the wireless LAN communication between the wireless communication device 10 and the wireless communication device 20 is started (S67).

  The example of the processing flow until the provision and use of the service through the wireless LAN communication has been described above. As in these examples, there are many procedures before the provision and use of the service starts. Therefore, it may take a long time before the provision and use of the service starts.

<< 2. First Embodiment >>
Subsequently, a first embodiment of the present disclosure will be described with reference to FIGS.

<2.1. Schematic configuration of communication system>
First, a schematic configuration of the communication system 1 according to the first embodiment of the present disclosure will be described with reference to FIG. FIG. 4 is an explanatory diagram illustrating an example of a schematic configuration of the communication system 1 according to the first embodiment. Referring to FIG. 4 , the communication system 1 includes a wireless communication device 100 and a wireless communication device 200.

  The wireless communication device 100 has a wireless communication function according to a predetermined communication method, and performs the wireless communication via the antenna unit 110. For example, the wireless communication is wireless LAN communication, and the predetermined communication method is, for example, a communication method using the IEEE 802.11 specification. The IEEE802.11 specification is any specification of the IEEE802.11 series (for example, IEEE802.11a, 11b, 11g, 11n, 11ac, and 11ad). Alternatively, the predetermined communication method may be a communication method using other wireless LAN standard specifications. The wireless communication apparatus 200 also has the wireless communication function according to the predetermined communication method, and performs the wireless communication via the antenna unit 210. The wireless communication device 100 and the wireless communication device 200 perform the above-described wireless communication (for example, wireless LAN communication).

  The wireless communication device 100 has a short-range wireless communication function, and performs the short-range wireless communication via the antenna unit 130. For example, the near field communication is near field communication (NFC). More specifically, for example, the short-range wireless communication is based on various standards such as ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, and ISO / IEC 21481. NFC according to any of the above. The wireless communication device 200 also has the short-range wireless communication function, and performs the short-range wireless communication via the antenna unit 230. The wireless communication device 100 and the wireless communication device 200 perform the short-range wireless communication (for example, NFC) with each other.

<2.2. Configuration of First Wireless Communication Device>
Next, an example of the configuration of the wireless communication apparatus 100 according to the first embodiment will be described with reference to FIG. FIG. 5 is a block diagram illustrating an example of the configuration of the wireless communication device 100 according to the first embodiment. Referring to FIG. 5, the wireless communication device 100 includes an antenna unit 110, a wireless communication unit 120, an antenna unit 130, a short-range wireless communication unit 140, a storage unit 150, and a processing unit 160.

(Antenna unit 110)
The antenna unit 110 radiates a signal output from the wireless communication unit 120 to the space as a radio wave. Further, the antenna unit 110 converts radio waves in space into a signal and outputs the signal to the wireless communication unit 120.

(Wireless communication unit 120)
The wireless communication unit 120 performs the wireless communication according to the predetermined communication method. As described above, the wireless communication is, for example, wireless LAN communication. For example, the wireless communication unit 120 transmits a signal to another wireless communication device via the antenna unit 110 and receives a signal from another wireless communication device via the antenna unit 110.

(Antenna unit 130)
The antenna unit 130 radiates a signal output from the short-range wireless communication unit 140 to space as a radio wave. Further, the antenna unit 130 converts a radio wave in space into a signal and outputs the signal to the short-range wireless communication unit 140.

(Short-range wireless communication unit 140)
The near field communication unit 140 performs near field communication. As described above, the short-range wireless communication is, for example, NFC. For example, the short-range wireless communication unit 140 transmits a signal to another wireless communication device via the antenna unit 130 and receives a signal from the other wireless communication device via the antenna unit 130.

(Storage unit 150)
The storage unit 150 temporarily or permanently stores a program and data for the operation of the wireless communication device 100.

(Processing unit 160)
The processing unit 160 provides various functions of the wireless communication device 100. The processing unit 160 includes an information acquisition unit 161, an information provision unit 163, and a control unit 165.

(Information acquisition unit 161)
-Connection information The information acquisition part 161 acquires the connection information used in order to perform the wireless communication according to a predetermined communication system between other wireless communication apparatuses. The other wireless communication device is, for example, the wireless communication device 200.

  As described above, for example, the wireless communication is wireless LAN communication, and the predetermined communication method is a communication method using, for example, IEEE 802.11 specifications. The IEEE802.11 specification is any specification of the IEEE802.11 series (for example, IEEE802.11a, 11b, 11g, 11n, 11ac, and 11ad). Alternatively, the predetermined communication method may be a communication method using other wireless LAN standard specifications.

-Identification information or address The connection information includes identification information or an address of the wireless communication device 100.

  For example, the wireless communication device 100 operates as an IEEE 802.11 series access point or a Wi-Fi Direct P2P group owner (P2P GO), and other wireless communication devices (for example, the wireless communication device 200) are IEEE 802.11 series. Act as a station. In this case, the connection information includes, for example, an SSID.

  The wireless communication device 100 operates as a Wi-Fi Direct P2P group owner (P2P GO), and other wireless communication devices (for example, the wireless communication device 200) operate as Wi-Fi Direct P2P devices. You may do it. In this case, the connection information may include a P2P device address.

--Information for encryption process or decryption process The connection information includes information used for the encryption process or the decryption process. Specifically, for example, the connection information includes PSK. As an example, the PSK is WPA2-PSK.

-Radio channel The connection information further includes, for example, channel information indicating a radio channel used for connection with the radio communication device 200 .

More specifically, for example, the channel information indicates a wireless channel used for connection with the wireless communication apparatus 200 among a plurality of usable wireless channels (for example, 1 to 11 channels). That is, the channel information indicates a wireless channel (for example, X channel) used by the wireless communication apparatus 100.

  The connection information as described above is stored in the storage unit 150, and the information acquisition unit 161 acquires the connection information from the storage unit 150.

-IP address For example, the information acquisition unit 161 acquires an IP address.

  For example, the IP address includes at least one of an IP address assigned to the wireless communication device 100 and an IP address assigned to the other wireless communication device (for example, the wireless communication device 200).

--Acquisition Method For example, the IP address is assigned in advance for use in inter-device communication with the wireless communication device 200 . The IP address is stored in the storage unit 150, for example. The information acquisition unit 161 acquires the IP address from the storage unit 150.

--Application For example, the IP address is used when information is transmitted or received. More specifically, for example, the IP address is used when image information, moving image information, or music information is transmitted or received.

  The IP address may be used in a network environment including at least three or more communication devices. For example, the IP address may be used for communication within a group of communication devices including the wireless communication device 100 and the wireless communication device 200.

-Service Information For example, the information acquisition unit 161 acquires service information for using or providing a service through the wireless communication (for example, wireless LAN communication) according to the predetermined communication method. The service information includes information transmitted and received by service discovery, for example.

-Service The service through the wireless communication is provided by the service server and used by the client of the service. For example, the wireless communication device 100 is a server for the service. Note that the wireless communication device 100 may be a client of the service.

  For example, the service is a content providing service, and the server provides content data to the client. In this case, as an example, the server is a camera, the client is a smartphone, and the content data is moving image data or image data. As another example (example of DLNA or Miracast), the server is a smartphone, the client is a display device, and the content data is moving image data or image data.

  For example, the service is a remote control service, and the server operates in response to remote control by a client. In this case, as an example, the server is a camera and the client is a smartphone. That is, the smartphone controls the camera remotely. As another example, the server is a smartphone, and the client is a wearable device. That is, the wearable device remotely controls the smartphone.

  Further, for example, the service is an upload service, and the server uploads data provided from the client. In this case, as an example, the service is an SNS (Social Networking Service) upload service, the client is a camera, the server is a smartphone, and the data is moving image data or image data.

-Information for specifying device and service The service information includes, for example, information for specifying the wireless communication device 100 and the service (hereinafter referred to as “specific information”). The information is, for example, a device class and a service class.

  More specifically, for example, the wireless communication device 100 operates as a server that provides the service. In this case, the identification information is information for identifying the wireless communication device 100 that is a server and the service provided by the wireless communication device 100.

  Note that the wireless communication device 100 may operate as a client that uses the service. In this case, the identification information may be information for identifying the wireless communication device 100 that is a client and a service that the wireless communication device 100 can use.

--Access information The service information includes, for example, access information that enables access to information stored in the wireless communication apparatus 100 for use or provision of the service (hereinafter referred to as “stored information”). .

More specifically, for example, the access information is URL (Uniform Resource Locator) information that enables access to information stored in the wireless communication device 100. The access includes HTTP (Hypertext Transfer Protocol) access, FTP ( File Transfer Protocol) access, and the like.

  As an example, when the service is a content providing service, the stored information is content data. As another example, when the service is a remote control service, the stored information is information on a control command that can be accepted by the server. As yet another example, the stored information is information indicating the capability of the wireless communication apparatus 100 for the service.

As described above, the information acquisition unit 161 acquires the connection information and additional information (for example, the IP address and / or the service information).

(Information providing unit 163)
The information providing unit 163 provides information to other wireless communication devices through the short-range wireless communication.

-Connection Information The information providing unit 163 transmits the connection information (that is, connection information used for performing the wireless communication with another wireless communication device) to the other wireless communication device through the short-range wireless communication. provide.

  For example, when one of the wireless communication device 100 and another wireless communication device (for example, the wireless communication device 200) approaches the other, the information providing unit 163 transmits the connection information to the other via the short-range wireless communication unit 140. To a wireless communication device.

As described above, for example, the connection information includes the channel information (that is, information indicating a wireless channel used for connection with the wireless communication apparatus 200 ). Accordingly, for example, another wireless communication device may perform scanning on one channel without performing scanning on a plurality of channels for connection with the wireless communication device 100. Therefore, the other wireless communication device can be quickly connected to the wireless communication device 100. As a result, the provision or use of the service can start earlier.

-IP address For example, the information providing unit 163 provides the IP address to another wireless communication device through the short-range wireless communication. That is, the information providing unit 163 provides the IP address and the connection information to the other wireless communication device through the short-range wireless communication. The other wireless communication device is, for example, the wireless communication device 200.

  For example, when one of the wireless communication device 100 and another wireless communication device (for example, the wireless communication device 200) approaches the other, the information providing unit 163 transmits the IP information together with the connection information via the short-range wireless communication unit 140. The address is also provided to the other wireless communication device.

  Thereby, for example, assignment of an IP address performed after the connection between the wireless communication apparatus 100 and another wireless communication apparatus is omitted. Therefore, the provision or use of the service can start earlier.

  Note that the IP address assignment after the connection may take a long time depending on the implementation. As an example, since the range of the value of the IP address used for communication varies from wireless communication device to another wireless communication device, another wireless communication device that operates so that the IP address is automatically determined using DHCP The connection to the wireless communication device 100 may be attempted using the determined IP address, and the connection may fail. As a result, it may take a long time to correctly assign an IP address.

-Service Information For example, the information providing unit 163 further provides the service information (that is, information for using or providing the service through the wireless communication) through the short-range wireless communication.

  For example, when one of the wireless communication device 100 and another wireless communication device (for example, the wireless communication device 200) approaches the other, the information providing unit 163 transmits the service along with the connection information via the short-range wireless communication unit 140. Information is also provided to the other wireless communication device.

  Thereby, for example, service discovery performed before the start of service provision and use by the wireless communication device 100 and other wireless communication devices is omitted. Therefore, the provision or use of the service can start earlier.

  As described above, the information providing unit 163 provides additional information (for example, the IP address and / or the service information) together with the connection information to the other wireless communication devices through the short-range wireless communication.

(Control unit 165)
-Connection process The control part 165 performs the connection process for performing the said wireless communication (for example, wireless LAN communication), for example. For example, the connection process includes transmission of a probe request or probe response via the wireless communication unit 120 and establishment of a secure link.

-Control of communication with another wireless communication device The control unit 165 controls communication with another wireless communication device connected to the wireless communication device 100, for example.

  As described above, for example, the IP address is provided to another wireless communication device. In this case, the control unit 165 controls communication with the other wireless communication device using the IP address. For example, the control unit 165 performs packet communication with the other wireless communication device using the IP address.

-Information to be transmitted / received For example, the wireless communication device 100 transmits or receives image information, moving image information, or music information. Note that the wireless communication device 100 may transmit or receive other types of information.

-Timing of transmission / reception For example, the wireless communication device 100 transmits image information, moving image information, or music information after establishing a secure connection with another wireless communication device (for example, the wireless communication device 200), or Receive. More specifically, the wireless communication device 100 establishes a secure connection with the other wireless communication device (for example, the wireless communication device 200), and then receives a service discovery response including an IP address. Transmit or receive image information, moving image information or music information. The wireless communication device 100 uses the IP address when transmitting or receiving the image information, the moving image information, or the music information.

  Further, for example, after establishing a secure connection with another wireless communication device (for example, the wireless communication device 200), the wireless communication device 100 uses the IP address regardless of whether there is an operation input from the user. To communicate.

-Communication in a network environment including three or more communication devices The wireless communication device 100 may use the IP address in a network environment including at least three or more communication devices. For example, the wireless communication device 100 may use the IP address for communication within a group of communication devices including the wireless communication device 100 and the wireless communication device 200.

-Control for Service Provision or Use The control unit 165 performs control for service provision or use, for example.

  As an example, when the service is a content providing service, the control provides content data via the wireless communication unit 120 as a server or acquires content data via the wireless communication unit 120 as a client. including.

  As another example, when the service is a remote control service, the control causes the wireless communication device 100 to perform an operation according to a control command provided by another wireless communication device as a server, or This includes providing a control command to another wireless communication device via the wireless communication unit 120 as a client.

  As yet another example, when the service is an upload service, the control includes uploading as a server or requesting another wireless communication device to upload as a client.

<2.3. Configuration of Second Wireless Communication Device>
Next, an example of the configuration of the wireless communication apparatus 200 according to the first embodiment will be described with reference to FIG. FIG. 6 is a block diagram illustrating an example of the configuration of the wireless communication apparatus 200 according to the first embodiment. Referring to FIG. 6, the wireless communication device 200 includes an antenna unit 210, a wireless communication unit 220, an antenna unit 230, a short-range wireless communication unit 240, a storage unit 250, and a processing unit 260.

  Note that the description of the antenna unit 210, the wireless communication unit 220, the antenna unit 230, the short-range wireless communication unit 240, and the storage unit 250 is the same as that of the antenna unit 110 of the wireless communication device 100 described above and the wireless communication except that the reference numerals are different. The description of the unit 120, the antenna unit 130, the short-range wireless communication unit 140, and the storage unit 150 is the same. Therefore, the overlapping description is omitted here.

(Processing unit 260)
The processing unit 260 provides various functions of the wireless communication apparatus 200. The processing unit 260 includes an information acquisition unit 261 and a control unit 263.

(Information acquisition unit 261)
-Connection information The information acquisition unit 261 obtains connection information used for performing wireless communication according to a predetermined communication method with another wireless communication device from the other wireless communication device through short-range wireless communication. get. The other wireless communication device is, for example, the wireless communication device 100.

  For example, when one of the wireless communication device 100 and the wireless communication device 200 approaches the other, the information acquisition unit 261 acquires the connection information provided by the wireless communication device 100 via the short-range wireless communication unit 240.

  As described above, for example, the wireless communication is wireless LAN communication, and the predetermined communication method is a communication method using, for example, IEEE 802.11 specifications. The IEEE802.11 specification is any specification of the IEEE802.11 series (for example, IEEE802.11a, 11b, 11g, 11n, 11ac, and 11ad). Alternatively, the predetermined communication method may be a communication method using other wireless LAN standard specifications.

-Identification information or address The connection information includes identification information or an address of another wireless communication device (for example, the wireless communication device 100).

  For example, the other wireless communication apparatus (for example, the wireless communication apparatus 100) operates as an IEEE802.11 series access point or a Wi-Fi Direct P2P group owner (P2P GO), and the wireless communication apparatus 200 operates as IEEE802.11. Operates as a series station. In this case, the connection information includes, for example, an SSID.

  Note that the other wireless communication device (for example, the wireless communication device 100) operates as a Wi-Fi Direct P2P group owner (P2P GO), and the wireless communication device 200 serves as a Wi-Fi Direct P2P device. It may be operating. In this case, the connection information may include a P2P device address.

--Information for encryption process or decryption process The connection information includes information used for the encryption process or the decryption process. Specifically, for example, the connection information includes PSK. As an example, the PSK is WPA2-PSK.

-Radio channel The connection information further includes, for example, channel information indicating a radio channel used for connection with the other radio communication device (for example, the radio communication device 100). Note that the specific content of the channel information is as described in relation to the wireless communication device 100.

  Thereby, for example, if the wireless communication device 200 performs a scan in one channel without performing a scan in a plurality of channels for connection with another wireless communication device (for example, the wireless communication device 100). Good. Therefore, the wireless communication device 200 can be quickly connected to another wireless communication device (wireless communication device 100). As a result, the provision or use of the service can start earlier.

-IP address The information acquisition part 261 acquires an IP address from said other radio | wireless communication apparatus through near field communication. That is, the information acquisition unit 261 acquires the IP address and the connection information from the other wireless communication device (for example, the wireless communication device 100) through short-range wireless communication.

  For example, the IP address includes at least one of an IP address assigned to the other wireless communication device (for example, the wireless communication device 100) and an IP address assigned to the wireless communication device 200.

--Acquisition method For example, when one of the other wireless communication devices (for example, the wireless communication device 100) and the wireless communication device 200 comes close to the other, the information acquisition unit 261 performs the above-described operation The IP address provided together with the connection information is acquired by another wireless communication device (for example, the wireless communication device 100).

  Thereby, for example, the assignment of the IP address performed after the connection between the wireless communication device 200 and another wireless communication device (for example, the wireless communication device 100) is omitted. Therefore, the provision or use of the service can start earlier.

--Application As described above, for example, the IP address is used when information is transmitted or received. More specifically, for example, the IP address is used when image information, moving image information, or music information is transmitted or received.

  As described above, the IP address may be used in a network environment including at least three or more communication devices. For example, the IP address may be used for communication within a group of communication devices including the wireless communication device 100 and the wireless communication device 200.

-Service information For example, the service information (that is, information for using or providing the service through the wireless communication) is transmitted by another wireless communication device (for example, the wireless communication device 100) through the short-range wireless communication. Provided to the wireless communication device 200. In this case, the information acquisition unit 261 further acquires the service information.

  For example, when one of the other wireless communication devices (for example, the wireless communication device 100) and the wireless communication device 200 comes close to the other, the information acquisition unit 261 transmits the other wireless communication device via the short-range wireless communication unit 240. To obtain the service information provided together with the connection information.

  Thereby, for example, the service discovery performed before the start of the provision and use of the service by the other wireless communication device (for example, the wireless communication device 100) and the wireless communication device 200 is omitted. Therefore, the provision or use of the service can start earlier.

  Note that the acquisition of information as described above (for example, connection information, IP address and / or service information) from another wireless communication device (for example, the wireless communication device 100) through short-range wireless communication is the processing unit 260. (For example, it is detected by the control unit 263).

(Control unit 263)
-Connection process The control part 263 performs the connection process for performing the said wireless communication (for example, wireless LAN communication), for example. For example, the control unit 263 performs the connection process using the connection information acquired by the information acquisition unit 261.

  For example, the connection processing includes transmission of a probe request or probe response via the wireless communication unit 220, establishment of a secure link, and the like.

  As described above, for example, the connection information acquired by the information acquisition unit 261 includes the channel information (that is, information indicating a wireless channel used for connection with the wireless communication device 100). In this case, the control unit 263 performs the connection process using the channel information. For example, the control unit 263 performs a scan on the radio channel indicated by the channel information.

-Control of communication with other wireless communication devices The control unit 263 controls communication with other wireless communication devices connected to the wireless communication device 200, for example. For example, when the wireless communication apparatus 200 is connected to the wireless communication apparatus 100, the control unit 263 controls communication with the wireless communication apparatus 100.

  As described above, for example, the information acquisition unit 261 acquires the IP address. In this case, the control unit 263 controls communication with another wireless communication device (for example, the wireless communication device 100) using the IP address. For example, the control unit 263 performs packet communication with another wireless communication device (for example, the wireless communication device 100) using the IP address.

-Information to be transmitted / received For example, the wireless communication apparatus 200 transmits or receives image information, moving image information, or music information. Note that the wireless communication device 200 may transmit or receive other types of information.

-Timing of transmission / reception For example, after establishing a secure connection with the wireless communication apparatus 100, the wireless communication apparatus 200 transmits or receives image information, moving image information, or music information. More specifically, the wireless communication device 200 establishes a secure connection with the wireless communication device 100, and then transmits image information, moving image information without transmitting a service discovery request or a service discovery response including an IP address. Alternatively, music information is transmitted or received. The wireless communication device 200 uses the IP address when transmitting or receiving the image information, the moving image information, or the music information.

  Further, for example, after establishing a secure connection with the wireless communication device 100, the wireless communication device 200 performs communication using the IP address regardless of whether there is an operation input from the user.

-Communication in a network environment including three or more communication devices The wireless communication device 200 may use the IP address in a network environment including at least three or more communication devices. For example, the wireless communication device 200 may use the IP address for communication within a group of communication devices including the wireless communication device 100 and the wireless communication device 200.

-Control for Service Provision or Use The control unit 263 performs control for service provision or use, for example.

  For example, when the service is a content providing service, the control provides content data via the wireless communication unit 220 as a server, or acquires content data via the wireless communication unit 220 as a client. including.

  As another example, when the service is a remote control service, the control causes the wireless communication device 200 to perform an operation according to a control command provided by another wireless communication device as a server, or This includes providing a control command to the wireless communication apparatus 100 via the wireless communication unit 220 as a client.

  As yet another example, when the service is an upload service, the control includes uploading as a server or requesting the wireless communication apparatus 100 to upload as a client.

<2.4. Process flow>
Next, a communication control process according to the first embodiment will be described with reference to FIGS. In the example described below, the wireless communication is wireless LAN communication (also referred to as Wi-Fi communication), and the short-range wireless communication is NFC.

(First example)
FIG. 7 is a sequence diagram illustrating a first example of a schematic flow of a communication control process according to the first embodiment.

As a premise, the wireless communication device 100 operates as an IEEE 802.11 series access point or a Wi-Fi Direct P2P group owner (P2P GO), and the wireless communication device 200 operates as an IEEE 802.11 series station. Yes.

  First, when one of the wireless communication device 100 and the wireless communication device 200 comes close to the other, the wireless communication device 100 transmits connection information for wireless LAN communication (for example, SSID and PSK), an IP address, and service information through NFC. This is provided to the wireless communication apparatus 200 (S501).

  Next, the wireless communication device 100 and the wireless communication device 200 transmit and receive a probe request and a probe response through wireless LAN communication (S503). Specifically, the wireless communication device 200 performs a scan on the X channel indicated by the channel information, and transmits a probe request to the wireless communication device 100 when receiving a beacon. Then, the wireless communication device 100 transmits a probe response to the wireless communication device 200.

Then, the wireless communication device 100 and the wireless communication device 200 establish a secure link in wireless LAN communication (S505). That is, the wireless communication device 100 and the wireless communication device 200 are securely connected to each other. At the time of the establishment of the secure link, 4-way handshake is performed. The secure link is a link encrypted by the PSK (for example, WPA2-PSK).

  Thereafter, provision and use of a service through wireless LAN communication between the wireless communication apparatus 100 and the wireless communication apparatus 200 is started (S507).

  According to the communication control process as described above, the provision of the IP address through NFC eliminates the IP address assignment (S37) as shown in FIG. Further, the service discovery (S39) as shown in FIG. 2 is omitted by providing the service information through NFC. Therefore, for example, provision or use of a service through wireless LAN communication can be started more quickly.

For example, the wireless communication device 100 and the wireless communication device 200 transmit or receive image information, moving image information, or music information after establishing a secure connection (S505) (S507). More specifically, after establishing a secure connection (S505), the wireless communication apparatus 100 transmits or receives image information, moving image information, or music information without receiving a service discovery response including an IP address ( S507). In addition, after establishing the secure connection (S505), the wireless communication device 200 transmits or receives image information, moving image information, or music information without transmitting a service discovery request or a service discovery response including the IP address ( S507). The wireless communication apparatus 100 and the wireless communication apparatus 200 use the IP address provided through NFC when transmitting or receiving the image information, the moving image information, or the music information (S501). For example, the wireless communication device 100 and the wireless communication device 200 perform communication using the IP address (S507) after the secure connection is established (S505) regardless of whether or not there is an operation input from the user.

(Second example)
FIG. 8 is a sequence diagram illustrating a second example of a schematic flow of a communication control process according to the first embodiment. The second example is a process flow related to DLNA or Miracast.

It is assumed that the wireless communication device 10 0 is operating as a P2P group owner of Wi-Fi Direct (P2P GO) , the wireless communication device 20 0, it is acting as P2P device. A P2P device is a state that is neither a P2P group owner nor a P2P client.

  First, when one of the wireless communication device 100 and the wireless communication device 200 approaches the other, the wireless communication device 100 wirelessly transmits connection information (for example, a P2P device address), an IP address, and service information for wireless LAN communication through NFC. This is provided to the communication device 200 (S521).

  Then, the wireless communication device 100 and the wireless communication device 200 perform provision discovery or invitation (S523).

Thereafter, the encryption key information is shared between the wireless communication device 100 and the wireless communication device 200 by WSC exchange (S525). Thereafter, the radio communication terminal 20 0 will P2P client.

  Then, the wireless communication device 100 and the wireless communication device 200 establish a secure link in wireless LAN communication (S527). That is, the wireless communication device 100 and the wireless communication device 200 are securely connected to each other. The secure link is a link encrypted by the PSK (for example, WPA2-PSK).

  Thereafter, provision and use of a service through wireless LAN communication between the wireless communication device 100 and the wireless communication device 200 is started (S529).

  According to the communication control process as described above, the IP address assignment (S63) as shown in FIG. 3 is omitted by providing the IP address through NFC. Further, by providing the service information through NFC, at least a part of device discovery (S53), service discovery (S55), and service negotiation (S65) as shown in FIG. 3 is omitted. Therefore, for example, provision or use of a service through wireless LAN communication can be started more quickly.

  For example, the wireless communication device 100 and the wireless communication device 200 transmit or receive image information, moving image information, or music information after establishing a secure connection (S527) (S529). When transmitting or receiving the image information, the moving image information, or the music information, the wireless communication device 100 and the wireless communication device 200 use the IP address provided through NFC (S521). Further, for example, the wireless communication device 100 and the wireless communication device 200 communicate using the IP address (S529) after establishing a secure connection (S527), regardless of whether or not there is an operation input from the user.

<2.5. First Modification>
Next, a first modification of the first embodiment will be described with reference to FIGS.

  In the above-described example of the first embodiment, the wireless communication device 100 provides additional information (for example, the IP address and / or the service information) together with the connection information to other wireless communication devices through short-range wireless communication. To do.

  On the other hand, in the first modification of the first embodiment, the wireless communication device 100 performs the short-range wireless communication when there is a predetermined restriction on the amount of data transmitted and received in the short-range wireless communication. No additional information is provided along with the connection information. That is, the wireless communication device 100 provides the connection information through the short-range wireless communication, but does not provide the additional information. In addition, the wireless communication device 100 provides the additional information together with the connection information when the predetermined restriction does not exist.

(Wireless communication apparatus 100: information providing unit 163)
In the first modification of the first embodiment, the information providing unit 163 performs the above-described short-range wireless communication through the short-range wireless communication when there is a predetermined restriction on the amount of data transmitted and received by the short-range wireless communication. Do not provide additional information along with connection information. That is, the information providing unit 163 provides the connection information through the short-range wireless communication, but does not provide the additional information. On the other hand, the information providing unit 163 provides the additional information together with the connection information through the short-range wireless communication when the predetermined restriction does not exist.

  For example, the processing unit 160 (for example, the information providing unit 163 or another component) determines whether or not the predetermined constraint exists. And when it determines with the said predetermined | prescribed restrictions existing, the information provision part 163 does not transmit the said additional information to another radio | wireless communication apparatus through the said near field communication. On the other hand, when it is determined that the predetermined restriction does not exist, the information providing unit 163 provides the additional information together with the connection information to another wireless communication device through the short-range wireless communication.

-Additional information The additional information includes, for example, the IP address. The additional information includes, for example, the service information (that is, information for using or providing the service through the wireless communication).

-Connection information In the first modification, for example, the connection information does not include the channel information (information indicating a wireless channel used for connection with the wireless communication device 200 ) when the restriction exists. If the restriction does not exist, the channel information is included.

-Predetermined constraints The predetermined constraints on the amount of data can be various. Hereinafter, some examples of the predetermined constraint will be described. The amount of data is, for example, the amount of data that can be transmitted in a predetermined time or the amount of data that can be transmitted per unit time.

--Antenna size As a first example, the predetermined restriction is that the antenna for the short-range wireless communication of the wireless communication device 100 or another wireless communication device (for example, the wireless communication device 200) is small. It is. That is, when the size of the antenna is small, the information providing unit 163 does not provide additional information together with the connection information through the short-range wireless communication.

  For example, when the size of the antenna is small, the communication characteristics can be deteriorated. For this reason, the amount of data transmitted and received by the short-range wireless communication is limited. Hereinafter, a specific example of this point will be described with reference to FIGS. 9 and 10.

  FIG. 9 is an explanatory diagram for explaining an example of the size of an antenna for short-range wireless communication. Referring to FIG. 9, an NFC antenna 111 and an NFC antenna 211 are shown. The NFC antenna 111 is an example of mounting the antenna unit 110 of the wireless communication apparatus 100, and the NFC antenna 211 is an example of mounting of the antenna unit 210 of the wireless communication apparatus 200. In this example, both the NFC antenna 111 and the NFC antenna 211 are small. Therefore, when the wireless communication device 100 and the wireless communication device 200 move due to a slight user shake, the NFC antenna 111 and the NFC antenna 211 do not face each other. Therefore, the communication characteristics of NFC are very easy to deteriorate, and errors are very likely to occur in NFC.

  FIG. 10 is an explanatory diagram for explaining an example of the size of an antenna for short-range wireless communication. Referring to FIG. 10, an NFC antenna 111 and an NFC antenna 211 are shown. In this example, the NFC antenna 111 is large, but the NFC antenna 211 is small. Also in this case, the NFC antenna 111 and the NFC antenna 211 do not face each other when the wireless communication device 100 and the wireless communication device 200 move due to a user's hand shake. Therefore, NFC communication characteristics are likely to deteriorate. As a result, an error is likely to occur in NFC.

  As an example, the predetermined restriction is that the size of the antenna for the short-range wireless communication of both the wireless communication device 100 and another wireless communication device (for example, the wireless communication device 200) is less than the predetermined size. is there. In this case, for example, the size of the antenna for short-range wireless communication of each of the wireless communication device 100 and the wireless communication device 200 is stored in the storage unit 150. Then, when at least one of the sizes of these antennas is less than the predetermined size, it is determined that the predetermined restriction exists.

  The predetermined restriction may be that the antenna for the short-range wireless communication of the wireless communication apparatus 100 is less than a predetermined size. In this case, the size of the antenna for short-range wireless communication of the wireless communication device 100 may be stored in the storage unit 150. Then, when the size of the antenna is less than a predetermined size, it may be determined that the predetermined restriction exists.

--Capacity of memory As a second example, the predetermined restriction is that the memory capacity of the wireless communication device 100 for the short-range wireless communication is small. That is, when the capacity of the memory is small, the information providing unit 163 does not provide additional information together with the connection information through the short-range wireless communication.

  For example, when the capacity of the memory is small, a large amount of data cannot be transmitted at once through the short-range wireless communication. For this reason, the amount of data transmitted and received by the short-range wireless communication is limited.

  As an example, the predetermined restriction is that a capacity of the memory for the short-range wireless communication of the wireless communication apparatus 100 is less than a predetermined capacity. In this case, for example, the capacity of the memory is stored in the storage unit 150. Then, when the memory capacity is less than the predetermined capacity, it is determined that the predetermined restriction exists.

-Others As yet another example, the predetermined constraint is that the amount of data transmitted by the short-range wireless communication of the wireless communication device 100 (for example, the amount of data that can be transmitted in a predetermined time or per unit time). The amount of data that can be transmitted) may be small. As an example, the predetermined constraint may be that the amount of the data is less than a predetermined amount. In this case, for example, the amount of the data may be stored in the storage unit 150. Then, when the amount of data is less than a predetermined amount, it may be determined that the predetermined constraint exists.

  In addition, the predetermined restriction may be that a flag set according to the amount of data transmitted and received in the short-range wireless communication is a predetermined value (for example, 0). As an example, the predetermined value is 0, and the flag is set to 0 when the amount of data transmitted by the short-range wireless communication of the wireless communication apparatus 100 is small, and is set to 1 otherwise. May be. In this case, for example, when the flag is stored in the storage unit 150 and the flag is the predetermined value, it may be determined that the predetermined restriction exists. Note that the flag may be fixedly set in the wireless communication device 100 (for example, at the time of manufacture) or may be automatically set by the wireless communication device 100.

(Process flow)
FIG. 11 is a flowchart illustrating an example of a schematic flow of processing performed by the wireless communication device 100 according to the first modification of the first embodiment.

  First, it is determined whether there is a predetermined restriction on the amount of data transmitted / received by short-range wireless communication (S541).

  When it is determined that the predetermined restriction exists (S541: YES), the information providing unit 163 provides connection information through the short-range wireless communication (S543). Note that the information providing unit 163 does not provide additional information through the short-range wireless communication. Then, the process ends.

  On the other hand, when it is determined that the predetermined restriction does not exist (S541: NO), the information providing unit 163 transmits connection information and additional information (for example, IP address and / or service information) through the short-range wireless communication. Is provided (S545). Then, the process ends.

  If the additional information is provided (S545), the communication control process shown in FIG. 7 or FIG. 8 is performed. On the other hand, when the additional information is not provided (S543), for example, a communication control process as shown in FIG. 2 or 3 is performed.

  The first modification of the first embodiment has been described above. According to the first modification, for example, the possibility of an error occurring in the short-range wireless communication (for example, NFC) can be reduced. Further, for example, the time for which the wireless communication device 100 and another wireless communication device (for example, the wireless communication device 200) are brought close to each other for the short-range wireless communication (for example, NFC) can be further shortened. As a result, user convenience can be improved.

<2.6. Second Modification>
Next, a second modification of the first embodiment will be described with reference to FIG.

  In the above-described example of the first embodiment, the wireless communication device 100 provides the service information (that is, information for using or providing the service through the wireless communication) together with the connection information through the short-range wireless communication. To a wireless communication device.

  On the other hand, in the second modification of the first embodiment, the wireless communication device 100 provides identification information associated with the service information through short-range wireless communication.

(Overall mechanism)
First, referring to FIG. 12, a mechanism for issuing and providing identification information associated with service information for using or providing a service through the wireless communication will be described.

  FIG. 12 is an explanatory diagram for explaining a mechanism related to identification information associated with service information. Referring to FIG. 12, a wireless communication device 100, a wireless communication device 200, a device (hereinafter referred to as “manufacturer device”) 80 of a manufacturer of the wireless communication device 100, and a management device 90 that manages identification information and service information are illustrated. ing.

The manufacturer apparatus 80 requests the management apparatus 90 to issue identification information at the timing of manufacturing the wireless communication apparatus 100, adding a service of the wireless communication apparatus 100, upgrading the OS (Operating System), and the like. At this time, the manufacturer apparatus 80 provides the management apparatus 90 with the manufacturer, product number, service information, and the like. Then, the management device 90 issues identification information associated with the service information in response to the request. More specifically, for example, in the database of the management apparatus 90 , the identification information and the service information are associated with each other, and the identification information is provided to the manufacturer apparatus 80. As an example, the identification information functions as an index for the service information in the database. For example, the identification information is written in the memory of the wireless communication device 100 at the time of manufacture. For example, the manufacturer apparatus 80 provides the identification information to the wireless communication apparatus 100 when distributing the update program. In addition, the said identification information is memorize | stored in the memory | storage part 150 of the radio | wireless communication apparatus 100, for example.

  On the other hand, the wireless communication device 200 requests the management device 90 to provide the identification information and the service information via, for example, a network (for example, a mobile communication network and the Internet). Then, the management device 90 provides the identification information and the service information to the wireless communication device 200. The request by the wireless communication device 200 may be made in accordance with designation by the user of the wireless communication device 200 or may be automatically made by the wireless communication device 200. In the case where the request is made in accordance with the designation by the user, the device that is the target for providing the identification information and the service information may be selected by the user. In this case, the wireless communication device 100 is selected, and identification information and service information about the wireless communication device 100 can be provided. When the above request is automatically made by the wireless communication device 200, the wireless communication device 200 may select a device for which identification information and service information are to be provided. In this case, the wireless communication device 100 is selected based on any information related to the wireless communication device 100 (for example, a purchase history of the wireless communication device 100 stored on the Internet). Identification information and service information may be provided. The identification information is stored in the wireless communication apparatus 200 in association with the service information.

  As described above, the wireless communication device 100 and the wireless communication device 200 share the identification information, and the wireless communication device 200 also has service information associated with the identification information. Therefore, if the wireless communication device 100 provides the identification information to the wireless communication device 200, the wireless communication device 200 can acquire the service information.

  Note that the mechanism described with reference to FIG. 12 is merely an example, and the identification information is shared between the wireless communication apparatus 100 and the wireless communication apparatus 200 by a different mechanism, and the service associated with the identification information is associated with the service. Information may be stored by the wireless communication apparatus 200. As an example, instead of the manufacturer device 80, the wireless communication device 100 may provide service information or the like to the management device 90, and the management device 90 may provide identification information to the wireless communication device 100. As another example, every time the identification information and the service information are updated, the wireless communication device 100 may provide the identification information and the service information to the wireless communication device 200 through any communication. In this way, various mechanisms can be employed.

(Wireless communication apparatus 100: information acquisition unit 161)
-Identification Information In the second modification, the information acquisition unit 161 acquires identification information associated with service information for using or providing a service through the wireless communication (for example, wireless LAN communication).

  For example, as described above, the manufacturer apparatus 80 (or the management apparatus 90) provides the identification information to the wireless communication apparatus 100, and the identification information is stored in the storage unit 150. Therefore, the information acquisition unit 161 acquires the identification information from the storage unit 150.

-Service information As described above as the example of the first embodiment, the service information includes, for example, the identification information (that is, information for identifying the wireless communication device 100 and the service). The specific information is, for example, a device class and a service class.

  In the second modification, for example, the service information includes control information used for control performed by another wireless communication device for use or provision of the service.

  As an example, the control information includes the access information (information that enables access to stored information stored in the wireless communication device 100 for use or provision of services). The access information is URL information that enables access to information stored in the wireless communication device 100, for example. As another example, the control information is information on a control command that can be received by the wireless communication apparatus 100. As yet another example, the information indicates the capability of the wireless communication apparatus 100 for the service.

(Wireless communication apparatus 100: information providing unit 163)
-Identification information In the 2nd modification, the information provision part 163 provides the said identification information with the said connection information through near field communication.

  For example, when one of the wireless communication device 100 and another wireless communication device (for example, the wireless communication device 200) approaches the other, the information providing unit 163 performs the identification together with the connection information via the short-range wireless communication unit 140. Information is also provided to the other wireless communication device.

(Wireless communication apparatus 200: information acquisition unit 261)
-Identification Information In the second modification, the identification information is provided to the wireless communication apparatus 200 by the wireless communication apparatus 100 together with the connection information through short-range wireless communication. In this case, the information acquisition unit 261 acquires the identification information.

  For example, when one of the wireless communication device 100 and the wireless communication device 200 approaches the other, the information acquisition unit 261 provides the identification information provided together with the connection information by the wireless communication device 100 via the short-range wireless communication unit 240. To get.

  The identification information is information provided to the wireless communication apparatus 200 together with the service information, and stored in the wireless communication apparatus 200 in association with the service information. For example, the management apparatus 90 sends identification information and service information about the wireless communication apparatus 100 to the wireless communication apparatus 200 in response to a request from the wireless communication apparatus 200 (for example, the information acquisition unit 261, the control unit 263, or another component). To provide. Then, the processing unit 260 (the information acquisition unit 261, the control unit 263, or another component) converts the identification information and the service information so that the identification information and the service information are associated in the database of the wireless communication device 200. Store in the database. Then, the processing unit 260 (for example, the information acquisition unit 261 or the control unit 263) searches the database using the identification information provided by the wireless communication device 100, and acquires the service information.

(Process flow)
In the communication control processing according to the second modification , the wireless communication device 100 provides the identification information to the wireless communication device 200 instead of the service information, and the wireless communication device 200 uses the identification information. The communication control process is the same as that described with reference to FIGS. 7 and 8 except that the service information is acquired.

The second modification of the first embodiment has been described above. According to the second modification, for example, the wireless communication device 200 can acquire various information (for example, specific information and control information) for providing or using a service in a very short time. Therefore, the provision or use of the service through the wireless communication can be started more quickly.

  Further, for example, the amount of data transmitted through the short-range wireless communication (for example, NFC) becomes very small. Therefore, the possibility that an error will occur can be reduced. Further, for example, the time for which the wireless communication device 100 and another wireless communication device (for example, the wireless communication device 200) are brought close to each other for the short-range wireless communication (for example, NFC) can be further shortened. As a result, user convenience can be improved.

<2.7. Third Modification>
Next, a third modification of the first embodiment will be described with reference to FIG.

  In the third modified example, the wireless communication device 100 or the wireless communication device 200 displays a screen including information related to the provided service after the secure connection is established, regardless of whether or not the user performs an operation.

  More specifically, for example, as described above, the wireless communication device 100 provides the connection information, the IP address, and the like to the wireless communication device 200 through short-range wireless communication (for example, NFC). Then, a secure connection for the wireless communication (for example, wireless LNA communication) is established. Then, one of the wireless communication device 100 and the wireless communication device 200 provides information related to the provided service to the other device. Then, the other device displays a screen including information related to the provided service. Hereinafter, a specific example of this point will be described with reference to FIG.

  FIG. 13 is an explanatory diagram for explaining an example of a screen that is displayed regardless of whether or not a user operation is performed. Referring to FIG. 13, a wireless communication device 200 is shown. In this example, the wireless communication device 200 is a smartphone. For example, when the user brings the wireless communication device 200 close to the wireless communication device 100, the wireless communication device 100 provides connection information (for example, SSID and PSK) and an IP address to the wireless communication device 200 through NFC. Then, the wireless communication apparatus 200 displays a screen including character information “NFC connected”. Thereafter, a secure connection between the wireless communication device 100 and the wireless communication device 200 is established. The wireless communication device 200 participates in a network (for example, a home network) including the wireless communication device 100 in accordance with UPnP (Universal Plug and Play) or DLNA (Digital Living Network Alliance) guidelines. The wireless communication device 100 provides information indicating the media server, media renderer, and media player in the network, and information indicating information (for example, moving image information, image information, and music information) provided by the media server. . The wireless communication apparatus 200 displays a screen indicating information provided by the media server, media renderer, media player, and media server regardless of whether or not the user has performed an operation. For example, the user can select a media server, a media renderer, and a media player displayed on the screen. Also, for example, the user can select information provided by the media server.

  Thereby, for example, labor for the user is reduced. Further, for example, the time required to provide and use the service can be shortened.

<2.8. Fourth Modification>
Next, a fourth modification of the first embodiment will be described with reference to FIG.

  In the fourth modification, for example, when the wireless communication device 100 provides the connection information to the wireless communication device 200 through short-range wireless communication, information indicating an abnormality of the wireless communication device 100 (hereinafter, “abnormal information”). Is provided to the wireless communication apparatus 200. Further, when the wireless communication device 200 acquires the connection information from the wireless communication device 100 through short-range wireless communication, the abnormality information is acquired from the wireless communication device 100. Then, the wireless communication device 200 displays a screen indicating an abnormality of the wireless communication device 100. Hereinafter, a specific example of this point will be described with reference to FIG.

  FIG. 14 is an explanatory diagram for explaining an example of a screen display indicating an abnormality of the wireless communication device. Referring to FIG. 14, a wireless communication device 200 is shown. In this example, the wireless communication device 200 is a smartphone, and the wireless communication device 100 is a speaker. In this example, it is assumed that there is an abnormality in the wireless communication device 100. For example, when the user brings the wireless communication device 200 close to the wireless communication device 100, the wireless communication device 100 provides connection information (for example, SSID and PSK) and abnormality information to the wireless communication device 200 through NFC. Then, the wireless communication apparatus 200 displays a screen including the character information “NFC connected”, but then displays a screen including the character information “Error in the speaker” based on the abnormality information. Thereby, the user knows that there is an abnormality in the wireless communication device 100 (speaker).

  For example, when there is an abnormality in the wireless communication apparatus 100, the wireless communication apparatus 100 provides the abnormality information, and the wireless communication apparatus 200 acquires the abnormality information. Then, a screen as shown in FIG. 14 is displayed. On the other hand, when there is no abnormality in the wireless communication device 100, the wireless communication device 100 does not provide the abnormality information, and the wireless communication device 200 does not acquire the abnormality information. Then, a secure connection is established, and service provision and use are started.

  By providing and acquiring such abnormality information, for example, even if the wireless communication device 100 does not include a display, the user can know the abnormality of the wireless communication device 100.

  In the fourth modification, information indicating an abnormality of the wireless communication device 200 may be provided and acquired through short-range wireless communication instead of the information indicating the abnormality of the wireless communication device 100. That is, when the wireless communication device 200 acquires the connection information from the wireless communication device 200 through short-range wireless communication, information indicating an abnormality of the wireless communication device 200 may be provided to the wireless communication device 100. Further, when the wireless communication device 100 provides the connection information to the wireless communication device 200 through short-range wireless communication, information indicating an abnormality of the wireless communication device 200 may be acquired from the wireless communication device 200. Then, the wireless communication device 100 may display a screen indicating an abnormality of the wireless communication device 200. Thereby, even if the wireless communication device 200 does not include a display, the user can know the abnormality of the wireless communication device 200.

<< 3. Second Embodiment >>
Subsequently, a second embodiment of the present disclosure will be described with reference to FIGS. 15 to 18.

<3.1. Schematic configuration of communication system>
First, a schematic configuration of the communication system 2 according to the second embodiment of the present disclosure will be described with reference to FIG. FIG. 15 is an explanatory diagram illustrating an example of a schematic configuration of the communication system 2 according to the second embodiment. Referring to FIG. 15, the communication system 2 includes a wireless communication device 300 and a wireless communication device 400.

  The wireless communication apparatus 300 has a wireless communication function according to a predetermined communication method, and performs the wireless communication via the antenna unit 310. For example, the wireless communication is wireless LAN communication, and the predetermined communication method is, for example, a communication method using the IEEE 802.11 specification. The IEEE802.11 specification is any specification of the IEEE802.11 series. Alternatively, the predetermined communication method may be a communication method using another wireless LAN standard specification. The wireless communication device 400 also has the wireless communication function according to the predetermined communication method, and performs the wireless communication via the antenna unit 410. The wireless communication device 300 and the wireless communication device 400 perform the above-described wireless communication (for example, wireless LAN communication).

  The wireless communication device 300 has a first short-range wireless communication function, and performs the first short-range wireless communication via the antenna unit 330. For example, the first near field communication is near field communication (NFC). More specifically, for example, the first short-range wireless communication includes various types such as ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, and ISO / IEC 21481. NFC according to any of the standards. The wireless communication device 400 also has the first short-range wireless communication function, and performs the first short-range wireless communication via the antenna unit 430. The wireless communication device 300 and the wireless communication device 400 perform the first short-range wireless communication (for example, NFC) with each other.

  In addition, the wireless communication device 300 has a second short-range wireless communication function, and performs the second short-range wireless communication via the antenna unit 350. For example, the second short-range wireless communication is communication having a longer communication distance than the first short-range wireless communication (for example, NFC). As an example, the second short-range wireless communication is wireless communication according to Bluetooth (registered trademark) (hereinafter referred to as “Bluetooth communication”). The wireless communication device 400 also has the second short-range wireless communication function, and performs the second short-range wireless communication via the antenna unit 450. The wireless communication device 300 and the wireless communication device 400 perform the second short-range wireless communication (for example, Bluetooth communication) with each other.

<3.2. Configuration of First Wireless Communication Device>
Next, an example of the configuration of the wireless communication apparatus 300 according to the second embodiment will be described with reference to FIG. FIG. 16 is a block diagram illustrating an example of a configuration of the wireless communication device 300 according to the second embodiment. Referring to FIG. 16, the wireless communication apparatus 300 includes an antenna unit 310, a wireless communication unit 320, an antenna unit 330, a first short-range wireless communication unit 340, an antenna unit 350, a second short-range wireless communication unit 360, and a storage unit 370. And a processing unit 380.

(Antenna part 310)
The antenna unit 310 radiates a signal output from the wireless communication unit 320 as a radio wave to space. Further, the antenna unit 310 converts radio waves in space into a signal and outputs the signal to the wireless communication unit 320.

(Wireless communication unit 320)
The wireless communication unit 320 performs the wireless communication according to the predetermined communication method. As described above, the wireless communication is, for example, wireless LAN communication. For example, the wireless communication unit 320 transmits a signal to another wireless communication device via the antenna unit 310 and receives a signal from the other wireless communication device via the antenna unit 310.

(Antenna unit 330)
The antenna unit 330 radiates the signal output from the first short-range wireless communication unit 340 to space as a radio wave. Further, the antenna unit 330 converts radio waves in space into a signal and outputs the signal to the first short-range wireless communication unit 340.

(First near field communication unit 340)
The first short-range wireless communication unit 340 performs first short-range wireless communication. As described above, the first short-range wireless communication is, for example, NFC. For example, the first short-range wireless communication unit 340 transmits a signal to another wireless communication device via the antenna unit 330 and receives a signal from the other wireless communication device via the antenna unit 330.

(Antenna unit 350)
The antenna unit 350 radiates the signal output from the second short-range wireless communication unit 360 to the space as a radio wave. Further, the antenna unit 350 converts a radio wave in the space into a signal and outputs the signal to the second short-range wireless communication unit 360.

(Second Near Field Communication Unit 360)
The second near field communication unit 360 performs second near field communication. As described above, the second short-range wireless communication is communication having a communication distance longer than that of the first short-range wireless communication (for example, NFC), and is communication according to Bluetooth as an example. For example, the second short-range wireless communication unit 360 transmits a signal to another wireless communication device via the antenna unit 350 and receives a signal from the other wireless communication device via the antenna unit 350.

(Storage unit 370)
The storage unit 370 temporarily or permanently stores a program and data for the operation of the wireless communication device 300.

(Processing unit 380)
The processing unit 380 provides various functions of the wireless communication device 300. The processing unit 380 includes an information acquisition unit 381, an information provision unit 383, and a control unit 385.

(Information acquisition unit 381)
-Connection information, IP address, and service information The information acquisition unit 381 acquires connection information used for performing wireless communication according to a predetermined communication method with another wireless communication device. For example, the information acquisition unit 381 acquires an IP address. For example, the information acquisition unit 381 acquires service information for using or providing a service through the wireless communication (for example, wireless LAN communication) according to the predetermined communication method. The description about these points is the same as the description related to the information acquisition unit 161 according to the first embodiment except that the reference numerals are different. Therefore, the overlapping description is omitted here.

-Another connection information The information acquisition part 381 acquires the other connection information used in order to perform said 2nd short-distance wireless communication between other wireless communication apparatuses. As described above, the second short-range wireless communication is communication having a communication distance longer than that of the first short-range wireless communication (for example, NFC), and as an example, communication according to Bluetooth (Bluetooth communication). is there. The other wireless communication device is, for example, a wireless communication device 400.

  The other connection information includes identification information or an address of the wireless communication device 300. As an example, the second short-range wireless communication is Bluetooth communication, and the other connection information includes a Bluetooth device address.

The other connection information may further include information indicating a wireless channel used for connection with the wireless communication device 400 for the second short-range wireless communication.

(Information provider 383)
The information providing unit 383 provides information to other wireless communication devices through the first short-range wireless communication or the second short-range wireless communication.

-Another Connection Information The information providing unit 383 provides the other connection information to another wireless communication device through the first short-range wireless communication (for example, NFC).

  For example, when one of the wireless communication device 300 and another wireless communication device (for example, the wireless communication device 400) is close to the other, the information providing unit 383 connects the other connection via the first short-range wireless communication unit 340. Information is provided to the other wireless communication device.

-Connection information The information providing unit 383 is used to perform wireless communication according to a predetermined communication method with the connection information (that is, another wireless communication device) through the second short-range wireless communication. Connection information) is provided to the other wireless communication device.

  For example, the wireless communication device 300 and the other wireless communication device (for example, the wireless communication device 400) are connected to each other by the second short-range wireless communication (for example, Bluetooth communication). Then, the information providing unit 383 provides the connection information to the other wireless communication device via the second short-range wireless communication unit 360.

-IP Address and Service Information For example, the information providing unit 383 provides the IP address to another wireless communication device through the second short-range wireless communication. That is, the information providing unit 383 provides the IP address and the connection information to the other wireless communication device through the second short-range wireless communication. The other wireless communication device is, for example, the wireless communication device 400.

  For example, the information providing unit 383 further provides the service information (that is, information for using or providing the service through the wireless communication) through the second short-range wireless communication.

  For example, the wireless communication device 300 and the other wireless communication device (for example, the wireless communication device 400) are connected to each other by the second short-range wireless communication (for example, Bluetooth communication). Then, the information providing unit 383 provides the IP address and / or the service information together with the connection information to the other wireless communication device via the second short-range wireless communication unit 360.

  As described above, the information providing unit 383 transmits the additional information (for example, the IP address and / or the service information) together with the connection information to the other wireless communication through the second short-range wireless communication (for example, Bluetooth communication). Provide to the communication device.

(Control unit 385)
—Connection Process——Second Short-range Wireless Communication The control unit 385 performs a connection process for performing the second short-range wireless communication (for example, Bluetooth communication), for example.

-Wireless communication Moreover, the control part 385 performs the connection process for performing the said wireless communication (for example, wireless LAN communication), for example. For example, the connection process includes transmission of a probe request or probe response via the wireless communication unit 320 and establishment of a secure link.

-Control of communication with other wireless communication devices and control for provision or use of service The control unit 385 controls communication with other wireless communication devices connected to the wireless communication device 300, for example. In addition, the control unit 385 performs control for providing or using a service, for example. The description about these points is the same as the description related to the control unit 165 according to the first embodiment except that the reference numerals are different. Therefore, the overlapping description is omitted here.

<3.3. Configuration of Second Wireless Communication Device>
Next, an example of a configuration of the wireless communication apparatus 400 according to the second embodiment will be described with reference to FIG. FIG. 17 is a block diagram illustrating an example of the configuration of the wireless communication apparatus 400 according to the second embodiment. Referring to FIG. 17, the wireless communication device 400 includes an antenna unit 410, a wireless communication unit 420, an antenna unit 430, a first short-range wireless communication unit 440, an antenna unit 450, a second short-range wireless communication unit 460, and a storage unit 470. And a processing unit 480.

  Note that the description of the antenna unit 410, the wireless communication unit 420, the antenna unit 430, the first short-range wireless communication unit 440, the antenna unit 450, the second short-range wireless communication unit 460, and the storage unit 470 has different reference numerals. Except for the antenna unit 310, the wireless communication unit 320, the antenna unit 330, the first short-range wireless communication unit 340, the antenna unit 350, the second short-range wireless communication unit 360, and the storage unit 370 of the wireless communication device 300 described above. Is the same. Therefore, the overlapping description is omitted here.

(Processing unit 480)
The processing unit 480 provides various functions of the wireless communication device 400. The processing unit 480 includes an information acquisition unit 481 and a control unit 483.

(Information acquisition unit 481)
-Another Connection Information The information acquisition unit 481 obtains another connection information used for performing the second short-range wireless communication with another wireless communication device, using the first short-range wireless communication (for example, , NFC) from another wireless communication device (for example, wireless communication device 300). As described above, the second short-range wireless communication is communication having a communication distance longer than that of the first short-range wireless communication (for example, NFC). As an example, communication according to Bluetooth (Bluetooth communication) It is.

  The other connection information includes identification information or an address of the other wireless communication device (wireless communication device 300). As an example, the second short-range wireless communication is Bluetooth communication, and the other connection information includes a Bluetooth device address.

  For example, when one of the other wireless communication device (wireless communication device 300) and the wireless communication device 400 approaches the other, the information acquisition unit 481 is provided by the wireless communication device 300 via the first short-range wireless communication unit 440. The other connection information to be acquired is acquired.

-Connection information The information acquisition unit 481 uses the connection information (that is, connection information used for performing wireless communication according to a predetermined communication method with another wireless communication device) as the second short distance. It acquires from said other radio | wireless communication apparatus (for example, radio | wireless communication apparatus 300) through radio | wireless communication (for example, Bluetooth communication).

  For example, when another wireless communication device (wireless communication device 300) and wireless communication device 400 are connected to each other by the second short-range wireless communication (for example, Bluetooth communication), the information acquisition unit 481 The connection information provided by the wireless communication device 300 is acquired via the distance wireless communication unit 460.

-IP address and service information The information acquisition unit 481 acquires the IP address from the other wireless communication device (for example, the wireless communication device 300) through the second short-range wireless communication (for example, Bluetooth communication). . That is, the information acquisition unit 481 acquires the IP address and the connection information from the other wireless communication device through the second short-range wireless communication.

  In addition, for example, the information acquisition unit 481 further transmits the service information (that is, information for using or providing the service through the wireless communication) through the second short-range wireless communication (for example, Bluetooth communication). , Acquired from the other wireless communication device (for example, wireless communication device 300).

  For example, when another wireless communication device (wireless communication device 300) and wireless communication device 400 are connected to each other by the second short-range wireless communication (for example, Bluetooth communication), the information acquisition unit 481 The IP address and / or the service information provided together with the connection information is acquired by the wireless communication apparatus 300 via the distance wireless communication unit 460.

(Control unit 483)
—Connection Process——Second Near Field Communication The control unit 483 performs a connection process for performing the second near field communication (for example, Bluetooth communication), for example. For example, the control unit 483 performs the connection process using the other connection information acquired by the information acquisition unit 481.

-Wireless communication The control part 483 performs the connection process for performing the said wireless communication (for example, wireless LAN communication), for example. The description about this point is the same as the description related to the control unit 263 according to the first embodiment except that the reference numerals are different. Therefore, the overlapping description is omitted here.

-Control of communication with other wireless communication devices and control for provision or use of service The control unit 483 controls communication with other wireless communication devices connected to the wireless communication device 400, for example. In addition, the control unit 483 performs control for providing or using a service, for example. The description about these points is the same as the description related to the control unit 263 according to the first embodiment except that the reference numerals are different. Therefore, the overlapping description is omitted here.

<3.4. Process flow>
Next, communication control processing according to the second embodiment will be described with reference to FIG. In the example described below, the wireless communication is wireless LAN communication (also referred to as Wi-Fi communication), the first short-range wireless communication is NFC, and the second short-range wireless communication is Bluetooth communication. An example.

  FIG. 18 is a sequence diagram illustrating an example of a schematic flow of a communication control process according to the second embodiment.

As a premise, the wireless communication device 300 operates as an IEEE 802.11 series access point or a Wi-Fi Direct P2P group owner (P2P GO), and the wireless communication device 400 operates as an IEEE 802.11 series station. Yes.

  First, when one of the wireless communication device 300 and the wireless communication device 400 approaches the other, the wireless communication device 300 provides connection information (for example, a Bluetooth device address) for Bluetooth communication to the wireless communication device 400 through NFC. (S601).

  Then, the wireless communication device 300 and the wireless communication device 400 establish a connection for Bluetooth communication (S603).

  Then, the wireless communication device 300 provides connection information (for example, SSID and PSK) for wireless LAN communication, an IP address, and service information to the wireless communication device 400 through Bluetooth communication (S605).

  Then, the wireless communication device 300 and the wireless communication device 400 establish a secure link for wireless LAN communication (S607). That is, the wireless communication device 300 and the wireless communication device 400 are securely connected to each other. The secure link is a link encrypted by the PSK (for example, WPA2-PSK).

  Thereafter, the provision and use of a service through wireless LAN communication between the wireless communication device 300 and the wireless communication device 400 is started (S609).

  According to the example of the second embodiment as described above, for example, even when the amount of data transmitted and received between devices is large (for example, 2 to 4 kB or more), the wireless communication device 300 and other wireless communication The time for which the device (for example, the wireless communication device 400) is brought closer can be shortened. In addition, for example, provision or use of the service through the wireless communication can be started more quickly.

<3.5. First Modification>
For example, when the predetermined restriction (that is, restriction on the amount of data transmitted and received by the first short-range wireless communication (for example, NFC)) exists, the example of the second embodiment as described above A technique like this may be used. Further, when the predetermined restriction does not exist, the connection information or the like is not provided through the technique as in the first embodiment described above (that is, the second short-range wireless communication (for example, Bluetooth communication), A first short-range wireless communication (for example, a method for providing the connection information or the like through NFC) may be used.

<3.6. Second Modification>
For example, the first short-range wireless communication unit 340 of the wireless communication device 300 can be implemented by an NFC tag. Then, when the NFC tag is a static tag that cannot dynamically receive connection information, a technique like the example of the second embodiment as described above may be used. Thereby, for example, it can be avoided that connection information (for example, including PSK) is stored in a static tag. In addition, when the NFC tag is a dynamic tag that can dynamically receive connection information, the technique as in the first embodiment (that is, the second short-range wireless communication (for example, Bluetooth communication) is used. ) May be used without providing the connection information or the like through a first short-range wireless communication (for example, NFC).

<< 4. Application example >>
The technology according to the present disclosure can be applied to various products. For example, the wireless communication device 100, the wireless communication device 200, the wireless communication device 300, and the wireless communication device 400 are a smartphone, a tablet PC (Personal Computer), a notebook PC, a mobile terminal such as a portable game terminal or a digital camera, and a television receiver. It may be realized as a fixed terminal such as a machine, a printer, a digital scanner or a network storage, or an in-vehicle terminal such as a car navigation device. The wireless communication device 100, the wireless communication device 200, the wireless communication device 300, and the wireless communication device 400 are M2M (Machine To Machine) such as a smart meter, a vending machine, a remote monitoring device, or a POS (Point Of Sale) terminal. It may be realized as a terminal that performs communication (also referred to as an MTC (Machine Type Communication) terminal). Further, the wireless communication device 100, the wireless communication device 200, the wireless communication device 300, and the wireless communication device 400 may be wireless communication modules (for example, integrated circuit modules configured by one die) mounted on these terminals. Good.

<4 . 1. First application example>
FIG. 19 is a block diagram illustrating an example of a schematic configuration of a smartphone 900 to which the technology according to the present disclosure can be applied. The smartphone 900 includes a processor 901, a memory 902, a storage 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, an antenna switch 913, an antenna 914, An NFC interface 915, an antenna 916, a bus 917, a battery 918, and an auxiliary controller 919 are provided.

  The processor 901 may be, for example, a CPU (Central Processing Unit) or a SoC (System on Chip), and controls functions of an application layer and other layers of the smartphone 900. The memory 902 includes a RAM (Random Access Memory) and a ROM (Read Only Memory), and stores programs and data executed by the processor 901. The storage 903 can include a storage medium such as a semiconductor memory or a hard disk. The external connection interface 904 is an interface for connecting an external device such as a memory card or a USB (Universal Serial Bus) device to the smartphone 900.

  The camera 906 includes, for example, an image sensor such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS), and generates a captured image. The sensor 907 may include a sensor group such as a positioning sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 908 converts sound input to the smartphone 900 into an audio signal. The input device 909 includes, for example, a touch sensor that detects a touch on the screen of the display device 910, a keypad, a keyboard, a button, or a switch, and receives an operation or information input from a user. The display device 910 has a screen such as a liquid crystal display (LCD) or an organic light emitting diode (OLED) display, and displays an output image of the smartphone 900. The speaker 911 converts an audio signal output from the smartphone 900 into audio.

  The wireless communication interface 912 supports one or more of wireless LAN standards such as IEEE 802.11, more specifically, IEEE 802.11a, 11b, 11g, 11n, 11ac, and 11ad, and executes wireless LAN communication. The wireless communication interface 912 can communicate with other devices via a wireless LAN access point in the infrastructure mode. The wireless communication interface 912 can directly communicate with other devices in the direct communication mode (or ad hoc mode). The wireless communication interface 912 may typically include a baseband processor, an RF (Radio Frequency) circuit, a power amplifier, and the like. The wireless communication interface 912 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated. The wireless communication interface 912 may support other types of wireless communication methods such as a cellular communication method in addition to the wireless LAN method. The antenna switch 913 switches the connection destination of the antenna 914 among a plurality of circuits (for example, circuits for different wireless communication schemes) included in the wireless communication interface 912. The antenna 914 includes a single or a plurality of antenna elements (for example, a plurality of antenna elements constituting a MIMO antenna), and is used for transmission and reception of a radio signal by the radio communication interface 912.

NFC interface 915 supports one or more of NFC standards such as ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, and ISO / IEC 21481, and implements NFC To do. The NFC interface 915 may typically include a baseband processor, an RF circuit, a power amplifier, and the like. The NFC interface 915 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated. Antenna 916 is used for transmission and reception of radio signals by the NF C interface 915.

  Note that the smartphone 900 is not limited to the example of FIG. 19, and may include a plurality of antennas (for example, antennas for a cellular communication method). In that case, the antenna switch 913 may be omitted from the configuration of the smartphone 900. The smartphone 900 may further include a Bluetooth interface.

  A bus 917 includes a processor 901, a memory 902, a storage 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, an NFC interface 915, and an auxiliary controller 919. Are connected to each other. The battery 918 supplies power to each block of the smartphone 900 shown in FIG. 19 through a power supply line partially shown by a broken line in the drawing. For example, the auxiliary controller 919 operates the minimum necessary functions of the smartphone 900 in the sleep mode.

  19, the information acquisition unit 161, the information providing unit 163, and the control unit 165 described with reference to FIG. 5, the information acquisition unit 381, and the information providing unit 383 described with reference to FIG. The control unit 385 may be implemented in the processor 901 or the auxiliary controller 919. More specifically, for example, these functions may be implemented as a program (for example, an OS (Operating System) or a part of a device driver) executed by the processor 901 or the auxiliary controller 919. Further, at least a part of these functions may be implemented in the wireless communication interface 912, the NFC interface 915, or the Bluetooth interface.

  19, the information acquisition unit 261 and control unit 263 described with reference to FIG. 6 and the information acquisition unit 481 and control unit 483 described with reference to FIG. Alternatively, it may be implemented in the auxiliary controller 919. More specifically, for example, these functions may be implemented as a program (for example, a part of an OS or a device driver) executed by the processor 901 or the auxiliary controller 919. Further, at least a part of these functions may be implemented in the wireless communication interface 912, the NFC interface 915, or the Bluetooth interface.

  Note that the smartphone 900 may operate as a wireless access point (software AP) when the processor 901 executes the access point function at the application level. Further, the wireless communication interface 912 may have a wireless access point function.

<4.2. Second application example>
FIG. 20 is a block diagram illustrating an example of a schematic configuration of a car navigation device 920 to which the technology according to the present disclosure can be applied. The car navigation device 920 includes a processor 921, a memory 922, a GPS (Global Positioning System) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931, and wireless communication. An interface 933, an antenna switch 934, an antenna 935, an NFC interface 936, an antenna 937, and a battery 938 are provided.

  The processor 921 may be a CPU or SoC, for example, and controls the navigation function and other functions of the car navigation device 920. The memory 922 includes RAM and ROM, and stores programs and data executed by the processor 921.

  The GPS module 924 measures the position (for example, latitude, longitude, and altitude) of the car navigation device 920 using GPS signals received from GPS satellites. The sensor 925 may include a sensor group such as a gyro sensor, a geomagnetic sensor, and an atmospheric pressure sensor. The data interface 926 is connected to the in-vehicle network 941 through a terminal (not shown), for example, and acquires data generated on the vehicle side such as vehicle speed data.

  The content player 927 reproduces content stored in a storage medium (for example, CD or DVD) inserted into the storage medium interface 928. The input device 929 includes, for example, a touch sensor, a button, or a switch that detects a touch on the screen of the display device 930, and receives an operation or information input from the user. The display device 930 has a screen such as an LCD or an OLED display, and displays a navigation function or an image of content to be reproduced. The speaker 931 outputs the navigation function or the audio of the content to be played back.

  The wireless communication interface 933 supports one or more wireless LAN standards such as IEEE802.11, more specifically, IEEE802.11a, 11b, 11g, 11n, 11ac, and 11ad, and performs wireless LAN communication. The wireless communication interface 933 can communicate with other devices via a wireless LAN access point in the infrastructure mode. The wireless communication interface 933 can directly communicate with other devices in the direct communication mode (or ad hoc mode). The wireless communication interface 933 may typically include a baseband processor, an RF circuit, a power amplifier, and the like. The wireless communication interface 933 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated. The wireless communication interface 933 may support other types of wireless communication methods such as a cellular communication method in addition to the wireless LAN method. The antenna switch 934 switches the connection destination of the antenna 935 among a plurality of circuits included in the wireless communication interface 933. The antenna 935 includes a single antenna element or a plurality of antenna elements, and is used for transmission and reception of a radio signal by the radio communication interface 933.

The NFC interface 936 supports one or more of NFC standards such as ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, and ISO / IEC 21481, and implements NFC. To do. The NFC interface 936 may typically include a baseband processor, an RF circuit, a power amplifier, and the like. The NFC interface 936 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated. Antenna 937 is used for transmission and reception of radio signals by the NF C interface 936.

  In addition, it is not limited to the example of FIG. 20, The car navigation apparatus 920 may be provided with a plurality of antennas. In that case, the antenna switch 934 may be omitted from the configuration of the car navigation device 920. The car navigation device 920 may further include a Bluetooth interface.

  The battery 938 supplies power to each block of the car navigation apparatus 920 shown in FIG. 20 through a power supply line partially shown by a broken line in the drawing. Further, the battery 938 stores electric power supplied from the vehicle side.

  In the car navigation device 920 shown in FIG. 20, the information acquisition unit 161, the information provision unit 163 and the control unit 165 described with reference to FIG. 5, and the information acquisition unit 381 described with reference to FIG. The unit 383 and the control unit 385 may be implemented in the processor 921. More specifically, for example, these functions may be implemented as a program (for example, a part of an OS or a device driver) executed by the processor 921. Further, at least a part of these functions may be implemented in the wireless communication interface 933, the NFC interface 936, or the Bluetooth interface.

  In the car navigation device 920 shown in FIG. 20, the information acquisition unit 261 and control unit 263 described with reference to FIG. 6, and the information acquisition unit 481 and control unit 483 described with reference to FIG. It may be implemented in the processor 921. More specifically, for example, these functions may be implemented as a program (for example, a part of an OS or a device driver) executed by the processor 921. Further, at least a part of these functions may be implemented in the wireless communication interface 933, the NFC interface 936, or the Bluetooth interface.

  In addition, the technology according to the present disclosure may be realized as an in-vehicle system (or vehicle) 940 including one or more blocks of the car navigation device 920 described above, an in-vehicle network 941, and a vehicle-side module 942. The vehicle-side module 942 generates vehicle-side data such as vehicle speed, engine speed, or failure information, and outputs the generated data to the in-vehicle network 941.

<4.3. Third application example>
FIG. 21 is a block diagram illustrating an example of a schematic configuration of a wireless communication module 960 to which the technology according to the present disclosure can be applied. The wireless communication module 960 includes a processor 961, a memory 962, a storage 963, a connection interface 964, a wireless communication interface 965, an NFC interface 966, and a bus 967.

  The processor 961 may be a CPU, for example, and controls the function of the wireless communication module 960. The memory 962 includes a RAM and a ROM, and stores programs and data executed by the processor 961. The storage 963 can include a storage medium such as a semiconductor memory or a hard disk. The connection interface 964 is an interface for connection with a terminal on which the wireless communication module 960 is mounted.

  The wireless communication interface 965 supports one or more of wireless LAN standards such as IEEE 802.11, more specifically, IEEE 802.11a, 11b, 11g, 11n, 11ac, and 11ad, and performs wireless LAN communication. The wireless communication interface 965 can communicate with other devices via a wireless LAN access point in the infrastructure mode. The wireless communication interface 965 can directly communicate with other devices in the direct communication mode (or ad hoc mode). The wireless communication interface 965 may typically include a baseband processor, an RF circuit, a power amplifier, and the like. The wireless communication interface 965 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated. The wireless communication interface 965 may support other types of wireless communication methods such as a cellular communication method in addition to the wireless LAN method. Note that the wireless communication interface 965 transmits and receives wireless signals via an antenna. The antenna may be provided by a terminal on which the wireless communication module 960 is mounted.

  NFC interface 966 supports one or more of NFC standards such as ISO / IEC 14443 Type A, ISO / IEC 14443 Type B, ISO / IEC 15693, ISO / IEC 18092, and ISO / IEC 21481, and implements NFC To do. The NFC interface 966 may typically include a baseband processor, an RF circuit, a power amplifier, and the like. The NFC interface 966 may be a one-chip module in which a memory that stores a communication control program, a processor that executes the program, and related circuits are integrated. Note that the NFC interface 966 transmits and receives wireless signals via an antenna. The antenna may be provided by a terminal on which the wireless communication module 960 is mounted.

  Note that the wireless communication module 960 may include one or more antennas (for example, a wireless LAN communication antenna, an NFC antenna, or the like), without being limited to the example of FIG. Further, the wireless communication module 960 may include a Bluetooth interface. Further, one or both of the wireless communication interface 965 and the NFC interface 966 may be provided by a terminal on which the wireless communication module 960 is mounted, instead of being provided by the wireless communication module 960.

Bus 967, a processor 961, memory 962, storage 963, connection interface 964 connects the wireless communication interface 965 and the NFC interface 966 to each other.

  In the wireless communication module 960 shown in FIG. 21, the information acquisition unit 161, the information provision unit 163 and the control unit 165 described with reference to FIG. 5, and the information acquisition unit 381 described with reference to FIG. The unit 383 and the control unit 385 may be implemented in the processor 961. More specifically, for example, these functions may be implemented as a program executed by the processor 961. Further, at least a part of these functions may be implemented in the wireless communication interface 965, the NFC interface 966, or the Bluetooth interface.

  In the wireless communication module 960 illustrated in FIG. 21, the information acquisition unit 261 and the control unit 263 described with reference to FIG. 6 and the information acquisition unit 481 and the control unit 483 described with reference to FIG. It may be implemented in the processor 961. More specifically, for example, these functions may be implemented as a program executed by the processor 961. Further, at least a part of these functions may be implemented in the wireless communication interface 965, the NFC interface 966, or the Bluetooth interface.

<< 5. Summary >>
So far, the wireless communication device and each process according to the embodiment of the present disclosure have been described with reference to FIGS.

  According to the embodiment according to the present disclosure, the wireless communication devices (the wireless communication device 100 and the wireless communication device 300) perform wireless communication according to a predetermined communication method with the IP address and other wireless communication devices. Information providing units (information providing unit 163 and information providing unit 383) for providing connection information used for the above purpose to the other wireless communication device through short-range wireless communication.

  Thereby, for example, provision or use of a service through wireless communication can be started more quickly. More specifically, for example, since the IP address assignment performed after the connection between the wireless communication device and the other wireless communication device is omitted, the provision or use of the service can be started earlier.

  Further, according to the embodiment according to the present disclosure, the wireless communication devices (the wireless communication device 200 and the wireless communication device 400) perform wireless communication according to a predetermined communication method with the IP address and other wireless communication devices. And an information acquisition unit (information acquisition unit 261, information acquisition unit 481) that acquires connection information used for performing communication from the other wireless communication device through short-range wireless communication.

  Thereby, for example, provision or use of a service through wireless communication can be started more quickly. More specifically, for example, since the IP address assignment performed after the connection between the wireless communication device and the other wireless communication device is omitted, the provision or use of the service can be started earlier.

  As mentioned above, although preferred embodiment of this indication was described referring an accompanying drawing, it cannot be overemphasized that this indication is not limited to the example concerned. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present disclosure. Understood.

  For example, an example in which the wireless communication device performs short-range wireless communication and the short-range wireless communication is NFC has been described. However, the present disclosure is not limited to a case where the wireless communication device includes an NFC reader / writer. For example, the wireless communication device may include an NFC tag instead of the NFC reader / writer. In this case, when the wireless communication device provides information to another wireless communication device, the information to be provided may be generated in the NFC tag. Thereby, the information to be provided can be read by the other wireless communication device. As a result, the information to be provided may be provided to the other wireless communication device.

  Further, for example, although one wireless communication device has provided an example of providing connection information and additional information (for example, an IP address and / or service information) to the other wireless communication device through short-range wireless communication, the present disclosure has been described. Is not limited to such an example. For example, the other wireless communication device may also provide any information to the one wireless communication device through short-range wireless communication. For example, the other wireless communication device may provide service information about the other wireless communication device to the one wireless communication device through short-range wireless communication. More specifically, when the other wireless communication device is provided with the connection information by the one wireless communication device through short-range wireless communication, the one wireless communication device transmits service information through the short-range wireless communication. May be provided. In such a case, the other wireless communication device may also include an information providing unit that provides service information through short-range wireless communication.

  Further, the processing steps in each process of the present specification do not necessarily have to be executed in time series in the order described in the flowchart. For example, the processing steps in the processing may be executed in an order different from the order described as a flowchart or a sequence diagram, or may be executed in parallel.

  It is also possible to create a computer program for causing hardware such as a CPU, ROM, and RAM incorporated in the wireless communication device to perform the same functions as the components of the wireless communication device. A storage medium storing the computer program may also be provided. Further, an information processing apparatus (for example, a processing circuit, a chip) including a memory (for example, ROM and RAM) for storing the computer program and one or more processors (for example, CPU, DSP, etc.) capable of executing the computer program. ) May also be provided.

  In addition, the effects described in the present specification are merely illustrative or illustrative, and are not limited. That is, the technology according to the present disclosure can exhibit other effects that are apparent to those skilled in the art from the description of the present specification in addition to or instead of the above effects.

The following configurations also belong to the technical scope of the present disclosure.
(1)
A wireless communication device,
An acquisition unit that acquires connection information used for performing wireless communication according to a predetermined communication method with an IP address and another wireless communication device from the other wireless communication device through short-range wireless communication;
A wireless communication device comprising:
(2)
The predetermined communication method is a communication method using the IEEE 802.11 specification, (1)
The wireless communication device described.
(3)
The communication device according to (1), wherein the connection information includes information used for encryption processing or decryption processing.
(4)
The wireless communication apparatus according to (1), wherein the connection information includes at least one of PSK (Pre-Shared Key) and SSID (Service Set Identifier).
(5)
The wireless communication device according to (3), wherein a secure connection is established with the other wireless communication device, and then image information, moving image information, or music information is transmitted or received.
(6)
After establishing a secure connection with the other wireless communication device, without transmitting a service discovery query or a service discovery response including an IP address, transmit or receive image information, moving image information, or music information, The wireless communication device according to (5).
(7)
The wireless communication apparatus according to (6), wherein the IP address is used when transmitting or receiving the image information, the moving image information, or the music information.
(8)
The wireless communication device according to (7), wherein the IP address is used in a network environment including at least three or more communication devices.
(9)
The wireless communication device according to (1), wherein after establishing a secure connection with the other wireless communication device, communication is performed using the IP address regardless of whether there is an operation input from a user.
(10)
The wireless communication apparatus according to (1), wherein the acquisition unit further acquires service information for using or providing the service through the wireless communication.
(11)
The wireless communication apparatus according to (1), wherein the acquisition unit further acquires identification information associated with service information for using or providing a service through the wireless communication.
(12)
When acquiring the connection information from the other wireless communication device through short-range wireless communication, information indicating an abnormality of the wireless communication device is provided to the other wireless communication device, or the other wireless communication device The wireless communication device according to (1), wherein information indicating abnormality is acquired from the other wireless communication device.
(13)
A program executed by a processor included in a wireless communication device,
Detects that IP address and connection information used to perform wireless communication according to a predetermined communication method with another wireless communication device are acquired from the other wireless communication device through short-range wireless communication A program with procedures to do.
(14)
A wireless communication method,
Detects that IP address and connection information used to perform wireless communication according to a predetermined communication method with another wireless communication device are acquired from the other wireless communication device through short-range wireless communication Step to do,
A wireless communication method including:

1, 2 Communication system 100, 300 Wireless communication device 161, 381 Information acquisition unit 163, 383 Information provision unit 165, 385 Control unit 200, 400 Wireless communication device 261, 481 Information acquisition unit 263, 483 Control unit

Claims (14)

A wireless communication device,
An acquisition unit that acquires connection information used for performing wireless communication according to a predetermined communication method with an IP address and another wireless communication device from the other wireless communication device through short-range wireless communication;
A wireless communication device comprising: The wireless communication apparatus according to claim 1 , wherein the predetermined communication method is a communication method using IEEE802.11 specifications. Wherein the connection information includes information used in the encryption processing or the decryption processing, the wireless communication apparatus according to claim 1 or 2. The wireless communication apparatus according to any one of claims 1 to 3, wherein the connection information includes at least one of a PSK (Pre-Shared Key) and an SSID (Service Set Identifier). The wireless communication apparatus according to claim 3 or 4 , wherein after establishing a secure connection with the other wireless communication apparatus, image information, moving image information, or music information is transmitted or received. After establishing a secure connection with the other wireless communication device, without transmitting a service discovery request or service discovery response including an IP address, transmit or receive image information, moving image information or music information; The wireless communication apparatus according to claim 5.   The wireless communication apparatus according to claim 6, wherein the IP address is used when transmitting or receiving the image information, the moving image information, or the music information.   The wireless communication device according to claim 7, wherein the IP address is used in a network environment including at least three or more communication devices. After establishing a secure connection between said other wireless communication apparatus, regardless of the presence or absence of an operation input from the user, communicates with the IP address, according to any one of claims 1-8 Wireless communication device. The acquisition unit further wherein acquiring the service information for use or provision of services through wireless communication, a wireless communication apparatus according to any one of claims 1-9. The wireless communication apparatus according to claim 1, wherein the acquisition unit further acquires identification information associated with service information for using or providing the service through the wireless communication. When acquiring the connection information from the other wireless communication device through short-range wireless communication, information indicating an abnormality of the wireless communication device is provided to the other wireless communication device, or the other wireless communication device The wireless communication device according to any one of claims 1 to 11 , wherein information indicating abnormality is acquired from the other wireless communication device. A program executed by a processor included in a wireless communication device,
Detects that IP address and connection information used to perform wireless communication according to a predetermined communication method with another wireless communication device are acquired from the other wireless communication device through short-range wireless communication A program with procedures to do. A wireless communication method,
Detects that IP address and connection information used to perform wireless communication according to a predetermined communication method with another wireless communication device are acquired from the other wireless communication device through short-range wireless communication Step to do,
A wireless communication method including: