JP6120526B2 - COMMUNICATION DEVICE, ITS CONTROL METHOD, AND PROGRAM - Google Patents

Description

  The present invention relates to a handover technique between a plurality of interfaces.

  In Non-Patent Document 1, as shown in FIG. 12, the connection of the high-speed wireless communication interface is set by the proximity of the low-speed proximity wireless communication interface, and the P2P communication session is set from the low-speed communication path to the set high-speed communication path. A technique for handover is described. Note that the close proximity wireless communication interface is, for example, NFC, and the high-speed wireless communication interface is, for example, a wireless LAN interface or a Bluetooth (registered trademark) interface.

  Further, in Patent Document 1, when there are a plurality of high-speed wireless communication medium candidates that are handover destinations of a P2P communication session, information such as service capability is exchanged via a communication path for close low-speed wireless communication. A method for handing over to a high speed wireless communication medium is described. Further, in Patent Literature 2, the same procedure is used for other terminals by notifying other terminals via the proximity wireless communication interface of the execution procedure of the network service that the terminal enjoys via the high-speed wireless communication interface. A method for enjoying the service is described.

JP 2010-279042 A JP 2010-219824 A JP 2008-131175 A

“NFC Connection Handover 1.2 Technical Specification”, NFC Forum, July 2010

  However, in the above-described technique, when communication with another communication device has already been executed via the high-speed wireless communication interface, as shown in FIG. 13, accompanying the connection setting process (the wireless connection destination change of the first hop) There is a problem that an existing communication path is disconnected.

  On the other hand, in Patent Document 3, after the individual identification information of another device is read via the proximity wireless communication interface, the device search process using the identification information is performed via the high-speed wireless communication path, A method for determining the necessity of changing the setting of a high-speed wireless communication path is described.

The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a technique for executing handover between a plurality of interfaces at high speed while preventing disconnection of an existing communication path.

To achieve the above object, a communication apparatus according to the present invention includes a first communication interface that communicates using a first communication method, a second communication interface that communicates using a second communication method, and the first communication interface. from the other party apparatus connected with, by using the first communication interface, an acquisition unit for acquiring identification information for identifying the other party apparatus in the network by the second communication interface, acquired by the acquisition means Determination means for determining whether communication with the counterpart device is possible using the first communication path already established using the second communication interface based on the information, The communication interface of 2 is determined when the determination means determines that communication with the counterpart device is possible using the first communication path. , Communicating with the counterpart device via the first communication path, and the determination means determines that the second communication interface is capable of communicating with the counterpart device using the first communication path. If not, communication is performed with the counterpart device via a second communication path established based on wireless setting information acquired from the counterpart device using the first communication interface.

  According to the present invention, handover between a plurality of interfaces can be executed at high speed while preventing disconnection of an existing communication path.

The conceptual diagram of the communication media handover control of the P2P communication path using the high-speed wireless communication interface being established. The block diagram which shows the function structural example of the communication apparatus which performs communication media handover. The block diagram which shows the function structural example of the communication apparatus which performs communication media handover. The flowchart which shows the necessity determination process of the IP connection setting which concerns on the communication media handover of a P2P communication path. The sequence diagram which shows the operation | movement of the communication media handover of a P2P communication path. The figure which shows an example of the information for line setting. FIG. 5 is another conceptual diagram of communication media handover control of a P2P communication path that uses an established high-speed wireless communication interface. The conceptual diagram of the communication media handover control of the P2P communication path when the high-speed wireless communication interface being established cannot be used. 10 is a flowchart showing IP connection setting necessity determination processing related to communication media handover of a P2P communication path according to the second embodiment. FIG. 9 is a sequence diagram showing an operation of communication media handover of a P2P communication path according to the second embodiment. 10 is a flowchart illustrating IP connection setting necessity determination processing related to communication media handover of a P2P communication path according to the third embodiment. The conceptual diagram of the communication media handover control of the conventional P2P communication path. The figure which shows an example of the subject of the communication media handover control of the conventional P2P communication path.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<< Embodiment 1 >>
FIG. 1 is a diagram showing a concept of communication media handover according to the present embodiment. In the communication media handover according to the present embodiment, the first communication device 10 and the second communication device 11 establish the logical communication session 100 using the first communication interface, and then the P2P communication of the already established second communication interface. Handover (120) to the path 110 is performed. Here, for example, the first communication interface is a low-speed proximity wireless communication interface, and the second communication interface is a high-speed wireless communication interface. The proximity wireless communication interface is NFC, for example, and is an interface that establishes a communication session when it is detected that the communication device and the counterpart communication device are close to each other. The high-speed wireless communication interface is, for example, a wireless LAN interface or a Bluetooth interface, and “established” means that the first communication device 10 and the second communication device 11 are established at the time of connection attempt. means. In the following description, a case where a wireless LAN interface is used as the high-speed wireless communication interface will be described, but a Bluetooth interface or the like may be used instead.

  In the present embodiment, when the first communication device 10 and the second communication device 11 communicate with each other, the proximity wireless communication interface determines whether they can communicate with each other using the established high-speed wireless communication interface. To do. For this determination, for example, identification information such as a MAC address is used, and it is determined whether the identification information of the counterpart device is included in the list of identification information of the counterpart device capable of communication through the high-speed wireless communication interface. For example, the established high-speed wireless communication interface is used when at least one of the list of the communication device includes the MAC address of the counterpart device or the list of the counterpart device includes the MAC address of the communication device. Judge that it is available. When an established high-speed wireless communication interface can be used, a connection can be performed by switching the connection to the established high-speed wireless communication interface without disconnecting the already established high-speed wireless communication interface. Further, in the method according to the present embodiment, since the identification information of the counterpart device is known by close proximity wireless communication, it is not necessary to perform a search process for the counterpart device. For this reason, it is possible to execute handover at high speed.

  Hereinafter, the apparatus configuration and processing will be described in detail with reference to FIGS.

(Configuration of communication device)
2 and 3 are block diagrams showing functional configuration examples of the first communication device 10 and the second communication device 11 in FIG. FIG. 2 shows the first communication device 10 and the second communication when the NFC operation mode operates in the peer-to-peer mode (P2P mode) in both the first communication device 10 and the second communication device 11. 2 is a configuration example of the device 11. On the other hand, FIG. 3 shows the first NFC operation mode when the first communication device 10 operates in the tag mode (Card Emulation mode) and the second communication device 11 operates in the R / W mode (reader / writer mode). 2 is a configuration example of a communication device 10 and a second communication device 11.

  In FIG. 2, the second communication device 11 includes a proximity wireless communication unit 201 that controls the P2P communication 100 on the NFC communication path, a wireless IP communication unit 211 that controls the P2P communication 110 on the wireless LAN communication path, and both communication units. And a communication control unit 202 that performs overall control. In addition, the second communication device 11 includes communication middleware 203 on the communication control unit 202. Then, the communication middleware 203 includes a media handover selection unit 214 that controls determination of whether or not to switch a communication path, setting information 213 related to the established wireless LAN network, and an ARP information table 212 in the established wireless LAN. Including. Here, ARP is an abbreviation for Address Resolution Protocol, and the ARP table is a comparison table between the IP address and MAC address of the communication partner in the wireless LAN communication path, and the identification information storage for storing the identification information of the communication partner It is a table.

  Similarly, the first communication device 10 controls both the communication units, the proximity wireless communication unit 205 that controls the P2P communication 100 in the NFC communication path, and the wireless IP communication unit 215 that controls the P2P communication 110 in the wireless LAN communication path. And a communication control unit 206 for controlling. The first communication device 10 also has communication middleware 207 on the communication control unit 206. Then, the communication middleware 207 includes a media handover request unit 218 that controls determination of whether or not to switch communication paths, setting information 216 regarding an established wireless LAN network, an ARP information table 212 within the established wireless LAN, including.

  In FIG. 3, the second communication device 11 includes a proximity wireless communication unit 301 that controls information access via the wireless tag communication path 100 in the NFC communication path, and wireless IP communication that controls P2P communication 110 in the wireless LAN communication path. Part 311. The second communication device 11 includes a communication control unit 302 that performs overall control of both communication units. Further, the second communication device 11 has communication middleware 304 on the communication control unit 302. Then, the communication middleware 304 includes a media handover selection unit 314 that controls determination of whether or not to switch a communication path, setting information 313 regarding an established wireless LAN network, an ARP information table 312 in the established wireless LAN, including.

  The first communication device 10 includes a proximity wireless communication tag 305 that controls information access via the wireless tag communication path 100 in the NFC communication path, a wireless IP communication unit 315 that controls P2P communication 110 in the wireless LAN communication path, And a communication control unit 306 that controls the wireless IP communication unit. The close proximity wireless communication tag 305 includes setting information 318 related to the existing wireless LAN network and information access area of the MAC address information 318 of the existing wireless LAN hardware, which controls determination of whether or not to switch the communication path.

(Communication device operation)
Subsequently, operations of the first communication device 10 and the second communication device 11 will be described with reference to FIGS. 4 and 5. FIG. 4 shows whether the second communication apparatus 11 determines whether or not a handover 120 of a P2P logical communication session 100 connected via NFC to a P2P communication path 110 of an existing wireless LAN can be performed based on a MAC address. It is a flowchart which shows an example of a process. This determination process is executed in the media handover selection unit 214 or 314 of the second communication device 11. FIG. 5 is a sequence chart illustrating an example of a processing procedure for media handover from the close proximity wireless communication interface to the high speed wireless communication interface, which is executed in the first communication device 10 and the second communication device 11.

  The second communication device 11 that performs the P2P communication detects the proximity of the counterpart device when the NFC communication function unit is being activated (S401), and sets the NFC (F501). . Thereafter, the start of the NFC communication operation on the first communication device 10 side is determined (S402).

  The second communication device 11 acquires the MAC address of the first communication device 10 from the first communication device 10 via the NFC communication path (S403). The second communication device 11 confirms the ARP information table 212 or 312 corresponding to the wireless IP communication unit 211 or 311 using the obtained MAC address as an index (S404). When the MAC address of the wireless IP communication unit 215 (315) of the first communication device 10 is registered in the ARP information table 212 (312) (YES in S404), the first communication device depends on the connection destination of the existing wireless LAN connection. It can be determined that IP communication with can be performed. Therefore, in this case, the second communication device 11 determines that the change of the connection destination of the first hop is unnecessary, and ends one processing unit without executing the change of the wireless LAN connection destination (500, S408).

  If the registration of the MAC address cannot be confirmed (NO in S404), the second communication device 11 subsequently determines whether the communication mode is capable of bidirectional communication with the communication middleware of the first communication device 10 via the NFC 100. (S405). When the communication mode is capable of bidirectional communication via the NFC 100 (YES in S405), the second communication device 11 confirms the ARP information table 217 corresponding to the wireless IP communication unit 215 of the first communication device 10 ( F502, S406). Then, the second communication device 11 determines whether or not the MAC address of the wireless IP communication unit 211 of the own device (second communication device 11) is registered in the ARP information table 217 (S407). When the MAC address of the wireless IP communication unit 211 is registered in the ARP information table 217 (YES in S407), it can be determined that IP communication with the second communication device is possible at the connection destination of the existing wireless LAN connection. Therefore, in this case, the second communication device 11 ends one processing unit without executing the change of the wireless LAN connection destination (500, S408).

  When the MAC address of the wireless IP communication unit 211 (311) of the second communication device 11 is not registered in the ARP information table 217 (NO in S407), the second communication device 11 sets the wireless line of the first communication device 10. The business information 216 (318) is obtained (F503). Note that the wireless line setting information is referred to as credential, and for example, credential information defined in the Wi-Fi (registered trademark) alliance has components as shown in FIG. The second communication device 11 uses the information after acquiring (F503) the wireless channel setting information 216 (318) of the first communication device 10. A prescribed setup procedure is executed in WPS-NFC (F504, F505, S408). WPS-NFC is a wireless LAN setting method using NFC. Prior to the setup of the wireless LAN, the communication device cuts off the connection with another device (for example, AP) that is directly connected in the already established communication path (the connection destination of the first first hop). .

  Thereafter, the second communication device 11 determines whether or not the wireless LAN setup is successful (S409). If the second communication device 11 is successful (YES in S409), the one processing unit is terminated. On the other hand, when the setup of the wireless LAN has failed (NO in S409), after performing display (S410) for notifying the user of the P2P communication path setting failure, one processing unit is ended.

  In the situation where the failure display (S410) is not performed in the above-mentioned one processing unit, the P2P logical connection between the first communication device 10 and the second communication device 11 is possible via the wireless LAN. Therefore, in this case, a logical connection session for P2P communication is set on the wireless LAN (F506, F507), and a communication path for P2P communication is secured.

  Note that the above-described change of the wireless LAN connection destination (500, S408) includes, for example, the change of the operation mode of the wireless LAN based on the change of the setting information using the wireless LAN Out-Of-Band (OOB). Here, the operation mode includes, for example, an infrastructure mode, an ad hoc mode, and a Wi-Fi direct mode. For example, in the above-described example, when the first communication device 10 or the second communication device 11 is connected to the AP in the infrastructure mode, the mode shifts to the ad hoc mode or the Wi-Fi direct mode according to the change of the connection destination. To do.

  On the other hand, for example, when the Bluetooth interface is used, the above-described connection destination change (500, S408) includes an operation mode change based on new pairing via the NFC communication path. Here, the operation modes are, for example, a slave connection mode and a master connection mode. As described above, it is possible to easily change the connection destination by appropriately changing the mode. In the case of a wireless LAN, it is possible to establish a communication path while ensuring security by changing setting information using OOB, and in the case of Bluetooth, by new pairing via an NFC communication path.

  Examples of the result of media handover by the above processing are shown in FIGS. Here, FIG. 1 and FIG. 7 show a case where media handover is performed using an existing wireless LAN connection destination, and FIG. 8 cannot use the existing wireless LAN and newly sets a direct connection by wireless LAN. Shows the case. According to the above-described processing, it is possible to increase the number of cases in which an existing wireless LAN connection destination is used when setting up a P2P communication path with a nearby partner apparatus, that is, as shown in FIG. 1 or FIG. Become. As a result, in the cases shown in FIGS. 1 and 7, the risk of causing an unintended communication line disconnection on the communication device itself or another application (such as Web access) running in the counterpart device is reduced. be able to. Also, the handover is executed at high speed to determine whether or not to execute the handover depending on whether the communication device is registered as the connection destination of the counterpart device or the counterpart device is registered as the connection destination of the communication device. can do.

<< Embodiment 2 >>
In the first embodiment, when there is a wireless LAN that is already established and connected, an example in which the MAC address of the wireless LAN interface is used as a determination condition for determining whether a P2P logical communication path can be set with a neighboring device. showed that. In the present embodiment, an example is shown in which wireless line setting information (Credential) is used in combination as a determination condition for determining whether or not a P2P logical communication path can be set. In addition, since the structure of the 1st communication apparatus 10 and the 2nd communication apparatus 11 which concern on this embodiment is the same as that of Embodiment 1, description is abbreviate | omitted.

  FIG. 9 shows whether or not the second communication device 11 can perform a handover (120) of a P2P logical communication session (100) connected via NFC to an existing wireless LAN communication path (110). It is a flowchart which shows a process. In the present embodiment, in this process, whether or not handover is possible is determined based on the radio channel setting information (Credential) indicator. Note that the process illustrated in FIG. 9 is a process performed by the media handover selection unit 214 or 314 of the second communication device 11. FIG. 10 is a sequence chart showing a media handover processing procedure from the close proximity wireless communication interface to the high speed wireless communication interface, executed between the first communication device 10 and the second communication device.

  The second communication device 11 that performs the P2P communication detects the proximity of the counterpart device when the NFC communication function unit is being activated (S901), and sets the NFC (F1001). . Thereafter, the start of NFC communication operation on the first communication device 10 side is determined (S902).

  The second communication device 11 confirms the set Credential 216 corresponding to the wireless IP communication unit 215 of the first communication device 10 when bidirectional communication with the communication middleware of the first communication device 10 is possible via NFC ( F1002). Then, the second communication device 11 acquires the MAC address of the first communication device 10 from the information of the set Credential 216 (S903). Then, the second communication device 11 confirms the ARP information table 212 or 312 corresponding to the wireless IP communication unit 211 or 311 using the obtained MAC address of the first communication device 10 as an index (S904).

  If the MAC address of the wireless IP communication unit 215 or 315 of the first communication device 10 is already registered in the ARP information table 212 or 312 (YES in S904), the second communication is performed at the connection destination of the existing wireless LAN connection. It can be determined that IP communication with the apparatus is possible. For this reason, the second communication apparatus 11 ends one processing unit without executing the change of the wireless LAN connection destination (1000, S909).

  On the other hand, when the MAC address of the wireless IP communication unit 215 or 315 of the first communication device 10 is not registered in the ARP information table 212 or 312 (NO in S904), the second communication device 11 sets the first communication device 10 Confirmed Credential 216 is confirmed (S905). Then, the second communication device 11 determines whether the SSID in the set Credential 216 information of the first communication device 10 and the BSSID being set in the wireless IP communication unit 211 of the second communication device 11 are the same ( S906). Note that BSSID is an abbreviation for Basic Service Set ID, and represents identification information of a connection destination network.

  When it is determined that the BSSIDs are the same (YES in S906), it can be determined that the first communication device 10 and the second communication device are present in one wireless cell formed by one AP. Therefore, the second communication device 11 next checks the setting status of the VLAN (virtual LAN) of the first communication device 10 (S907). Specifically, for example, information described in <other> which is an option information area in FIG. 6 is referred to. Then, the second communication device 11 determines whether the VLAN setting of the first communication device 10 is in the same group as the setting of the second communication device 11 (S908). If the VLAN settings of the first communication device 10 and the second communication device 11 are the same group (YES in S908), the first communication device 10 and the second communication device 10 are connected to each other using the existing wireless LAN connection destination. It can be determined that IP communication with the communication device 11 is possible. Therefore, in this case, the second communication device 11 ends one processing unit without executing the change of the wireless LAN connection destination (1000, S909). In the above description, it is determined whether the first communication device 10 and the second communication device 11 are included in one VLAN group. However, the present invention is not limited to this. For example, the first communication device 10 and the second communication device 11 are included in the same group in some logical segment that groups communication devices that can be connected to each other in the network based on some information other than VLAN settings. It may be determined.

  On the other hand, when the SSID in the set Credential 216 information of the first communication device 10 and the BSSID being set in the wireless IP communication unit 211 of the second communication device 11 are not the same (NO in S906), a new wireless LAN setting is made. Is executed (S909). Similarly, even when the VLAN settings of the first communication device 10 and the second communication device 11 are not in the same group (NO in S908), a new wireless LAN setting is executed (S909). Specifically, the second communication device 11 executes a prescribed setup procedure by WPS-NFC using the wireless channel setting information (Credential) 216 of the first communication device 10 (F1004, F1005, S909). Then, the success or failure of the setup is determined (S910), and if successful (YES in S910), one processing unit is terminated as it is. On the other hand, if it has failed (NO in S910), after displaying (S911) to alert the user that the P2P communication path setting has failed, one processing unit is terminated.

  In a situation where failure display (S911) is not performed in the above-mentioned one processing unit, P2P logical connection between the first communication device 10 and the second communication device 11 is possible via the wireless LAN. Therefore, except for the case where failure is displayed in S911, a logical connection session for P2P communication is set on the wireless LAN (F1007, F1008), and a communication path for P2P communication is secured.

  Even in the above-described processing, as in the first embodiment, a case where an existing wireless LAN connection destination is used when setting a P2P communication path with a neighboring device, that is, a case as shown in FIG. 1 or FIG. Can be increased. As a result, in the cases shown in FIGS. 1 and 7, the risk of causing an unintended communication line disconnection on the communication device itself or another application (such as Web access) running in the counterpart device is reduced. be able to.

<< Embodiment 3 >>
In the first and second embodiments described above, when a media handover is performed to a wireless LAN communication path from a P2P logical communication path that is set by the proximity of an NFC communication path, the existing wireless LAN connection path is preferentially used. An example of use is shown. In the present embodiment, when communication is performed using the already established wireless LAN connection path, the communication device prepares for backup IBSS in preparation for disconnection of the wireless LAN communication path with the APs 13 to 15 related to the wireless LAN connection. A case where the setting is performed using a P2P logical communication path will be described.

  FIG. 11 is a flowchart showing the concept of the wireless connection setting information exchange process for the backup communication path, which is executed during communication using the P2P logical communication path of the first communication device 10 and the second communication device 11.

  After starting the P2P communication, the communication device first determines whether the P2P communication medium with the counterpart device is a direct communication path (IBSS) of the wireless LAN (S1101). Here, the direct communication path is a communication path that does not pass through the AP. If the direct communication path is already used (YES in S1101), the communication apparatus performs the process of monitoring the disconnection of the P2P communication session (S1107 to S1109) triggered by the detection that the NFC is no longer in proximity. ).

  When the P2P communication path is set via the wireless LAN indirect communication path (communication path via AP) (NO in S1101), the communication apparatus performs backup using NPS-NFC with the counterpart apparatus. The setting information for the direct wireless communication channel (IBSS) is exchanged (S1102). Thereafter, the communication device confirms whether or not communication with the connected AP is possible (S1103, S1104). When it is recognized that communication with the AP is disabled (NO in S1104), the success or failure of acquisition of setting information for the backup direct wireless communication path (IBSS) is confirmed (S1105).

  When the setting information for the backup direct wireless communication channel (IBSS) has been successfully acquired (YES in S1105), the communication device switches the connection destination according to the setting (S1106), and P2P with the counterpart device Continue to connect the logical communication path. On the other hand, if the acquisition of the setting information for the backup direct wireless communication channel (IBSS) has failed (NO in S1105), the communication device displays the inability to continue P2P communication (S1110). After that, the communication apparatus shifts the process to a P2P communication session disconnection monitoring process (S1107 to S1109) triggered by detection that the NFC is no longer in proximity.

  In the P2P communication session disconnection monitoring process (S1107 to S1109), first, the proximity state with the counterpart device is confirmed by NFC proximity communication (S1107). Then, it is determined whether or not the communication device can communicate with the counterpart device by NFC (S1108). If communication is impossible (NO in S1108), the P2P communication session is disconnected (S1109). When a P2P communication session is disconnected, if communication is being performed on a P2P logical communication path using IBSS that is set when the proximity of NFC function units is detected, the setting information for the IBSS is displayed. Revert to the information that was set before setting.

  With such processing, even if it becomes difficult to maintain the existing indirect wireless communication path (communication path via AP) after setting the P2P communication path with the adjacent counterpart device, it becomes difficult to maintain the backup. A P2P logical communication path can be maintained via a direct wireless communication path (IBSS). Furthermore, it detects that the NFC function units are in a remote state, releases the logical communication path in response to this, and connects the setting information to the immediately preceding indirect wireless communication path (communication path via AP). By returning to the setting information, it is possible to easily return to the existing network setting.

  In this embodiment, the criterion for disconnecting the session of the P2P communication path (S1109) is that the NFC function units are in a remote state (S1107, S1108), but is not limited thereto. For example, in addition to this criterion, the usage status of the P2P communication session may be added to the determination criterion. Note that the usage status includes, for example, whether or not a time during which data packet communication is not performed in a communication session continues for a specified time or more, or whether or not there is a session reservation continuation request from an upper application. That is, only when the usage status of the P2P communication session by the high-speed wireless communication interface is observed, and the usage status observed when it is detected that the P2P communication session is not in use is detected, You may disconnect the session. By doing in this way, it is possible to maintain a P2P communication path in use even for a momentary interruption of NFC communication due to a user's erroneous operation, etc., and to prevent unnecessary reconnection processing, etc. Communication efficiency can be improved.

<< Other Embodiments >>
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

Claims (20)

A communication device,
A first communication interface for communicating by a first communication method;
A second communication interface for communicating by a second communication method;
From the other party apparatus connected with the first communication interface, an acquisition unit using the first communication interface, and acquires the identification information for identifying the other party apparatus in the network by the second communication interface,
Determination means for determining whether communication with the counterpart device is possible using the first communication path already established using the second communication interface based on the information acquired by the acquisition means; Have
When the determination unit determines that the second communication interface is capable of communicating with the counterpart device using the first communication path, the second communication interface communicates with the counterpart device via the first communication path. Communicate
The second communication interface uses the first communication interface from the counterpart device when the determination means does not determine that communication with the counterpart device is possible using the first communication path. Communicating with the counterpart device via a second communication path established based on the wireless setting information acquired
A communication device. The information acquired by the acquisition means is the MAC address of the counterpart device.
The communication apparatus according to claim 1. When the second communication interface establishes the second communication path, disconnects the first communication path to establish the second communication path, and disconnects the second communication path; Returning the connection to the first communication path;
The communication apparatus according to claim 1 or 2, wherein Further comprising a detecting means for detecting whether the first communication interface is close to the counterpart device;
The second communication interface is established using the second communication interface when the second communication interface has been established and the detection means detects that the second communication interface is not in proximity to the counterpart device. Returning the communication path to the first communication path,
The communication device according to any one of claims 1 to 3, wherein Observation means for observing the use status of communication using the second communication interface;
In the case where the second communication interface has established the second communication path, the second communication interface detects that the detection unit is not in proximity to the counterpart device, and the usage status is a specified time. When the above data communication packet is not detected or indicates that there is no session securing continuation request from the upper application, the communication path established using the second communication interface is returned to the first communication path.
The communication apparatus according to claim 4. The acquisition means acquires identification information for identifying the counterpart device in the network by the second communication interface,
Said determination means prior SL in the identification information storage table of the communication partner by the second communication interface, if it contains the identification information of the previous SL-phase Tekata device, the opposite device using the first communication channel Determine that connection to is possible,
The communication apparatus according to any one of claims 1 to 5, wherein: A communication device,
A first communication interface for communicating by a first communication method;
A second communication interface for communicating by a second communication method;
From the counterpart device connected using the first communication interface, identification information for identifying the counterpart device in the network using the second communication interface using the first communication interface, and the second information in the counterpart device Obtaining means for obtaining at least one of information on a communication path through another device that has already been established using the communication method;
Determination means for determining whether communication with the counterpart device is possible using the first communication path already established using the second communication interface based on the information acquired by the acquisition means; Have
The information regarding the communication path via the other apparatus already established using the second communication method in the counterpart apparatus includes identification information for identifying the communication partner of the counterpart apparatus via the communication path,
The determination means can connect to the counterpart device using the first communication path when the communication device identification information storage table of the counterpart device includes the communication device identification information. it is determined that,
When the determination unit determines that the second communication interface is capable of communicating with the counterpart device using the first communication path, the second communication interface communicates with the counterpart device via the first communication path. Communicate
The second communication interface uses the first communication interface from the counterpart device when the determination means does not determine that communication with the counterpart device is possible using the first communication path. Communicating with the counterpart device via a second communication path established based on the wireless setting information acquired
A communication device . A communication device,
A first communication interface for communicating by a first communication method;
A second communication interface for communicating by a second communication method;
From the counterpart device connected using the first communication interface, identification information for identifying the counterpart device in the network using the second communication interface using the first communication interface, and the second information in the counterpart device Obtaining means for obtaining at least one of information on a communication path through another device that has already been established using the communication method;
Determination means for determining whether communication with the counterpart device is possible using the first communication path already established using the second communication interface based on the information acquired by the acquisition means; Have
The information regarding the communication path via another apparatus already established using the second communication method in the communication apparatus includes identification information for identifying a communication partner of the communication apparatus via the communication path,
When the identification information storage table of the communication partner of the communication device includes the identification information of the partner device, the determination means can connect to the partner device using the first communication path. it is determined that,
When the determination unit determines that the second communication interface is capable of communicating with the counterpart device using the first communication path, the second communication interface communicates with the counterpart device via the first communication path. Communicate
The second communication interface uses the first communication interface from the counterpart device when the determination means does not determine that communication with the counterpart device is possible using the first communication path. Communicating with the counterpart device via a second communication path established based on the wireless setting information acquired
A communication device . A communication device,
A first communication interface for communicating by a first communication method;
A second communication interface for communicating by a second communication method;
From the counterpart device connected using the first communication interface, identification information for identifying the counterpart device in the network using the second communication interface using the first communication interface, and the second information in the counterpart device Obtaining means for obtaining at least one of information on a communication path through another device that has already been established using the communication method;
Determination means for determining whether communication with the counterpart device is possible using the first communication path already established using the second communication interface based on the information acquired by the acquisition means; Have
Information regarding the communication path through the other device already established using the second communication method in the counterpart device can be connected to the network identification information of the connection destination in the second communication method. Including information on a group of communication devices,
In the communication device, the determination unit has the same network identification information of a connection destination of the second communication interface as the connection destination network identification information of the counterpart device, and the communication device and the counterparty. When a device is included in one group, it is determined that connection to the counterpart device using the first communication path is possible,
When the determination unit determines that the second communication interface is capable of communicating with the counterpart device using the first communication path, the second communication interface communicates with the counterpart device via the first communication path. Communicate
The second communication interface uses the first communication interface from the counterpart device when the determination means does not determine that communication with the counterpart device is possible using the first communication path. Communicating with the counterpart device via a second communication path established based on the wireless setting information acquired
A communication device . The first communication interface is a proximity wireless communication interface that performs communication when close to the counterpart device,
The communication apparatus according to any one of claims 1 to 9, wherein The proximity wireless communication interface includes a peer-to-peer mode as an operation mode.
The communication apparatus according to claim 10. The proximity wireless communication interface includes a tag mode and a reader / writer mode as operation modes. When the communication device operates in the tag mode, the counterpart device operates in a reader / writer mode, and the communication device operates as a reader. / When operating in writer mode, the counterpart device operates in tag mode.
The communication apparatus according to claim 10. The second communication interface is a wireless LAN interface;
The communication device according to any one of claims 1 to 12, wherein The second communication path is established according to an infrastructure mode, an ad hoc mode, or a Wi-Fi direct mode.
The communication apparatus according to claim 13. The second communication interface is a Bluetooth interface;
The communication device according to any one of claims 1 to 12, wherein The wireless setting information includes a network index, an SSID, an authentication type, an encryption type, a network key index, a network key, a mac address, an EAP type, an EAP index, an EAP index, and an EAP index. including,
The communication apparatus according to any one of claims 1 to 15 , wherein the communication apparatus is characterized in that:   A communication device,
  A first communication interface for communicating by a first communication method;
  A second communication interface for communicating by a second communication method;
  From the counterpart device connected using the first communication interface, identification information for identifying the counterpart device in the network using the second communication interface using the first communication interface, and the second information in the counterpart device Obtaining means for obtaining at least one of information on a communication path through another device that has already been established using the communication method;
  Determination means for determining whether communication with the counterpart device is possible using the first communication path already established using the second communication interface based on the information acquired by the acquisition means; Have
  When the determination unit determines that the second communication interface is capable of communicating with the counterpart device using the first communication path, the second communication interface communicates with the counterpart device via the first communication path. Communicate
  The second communication interface uses the first communication interface from the counterpart device when the determination means does not determine that communication with the counterpart device is possible using the first communication path. Communicating with the counterpart device via a second communication path established based on the wireless setting information acquired
  When the second communication interface establishes the second communication path, disconnects the first communication path to establish the second communication path, and disconnects the second communication path; Returning the connection to the first communication path;
  A communication device. A method for controlling a communication apparatus, comprising: a first communication interface that communicates using a first communication method; and a second communication interface that communicates using a second communication method,
From the other party apparatus connected with the first communication interface, using the first communication interface, an acquisition step of acquiring identification information for identifying the other party apparatus in the network by the second communication interface,
A determination step of determining whether communication with the counterpart device is possible using the first communication path already established using the second communication interface based on the information acquired in the acquisition step;
When it is determined in the determination step that communication with the counterpart device is possible using the first communication path, the counterpart party is transmitted via the first communication path using the second communication interface. Communicating with the device;
If it is not determined in the determination step that communication with the counterpart device is possible using the first communication path, the first communication interface is used from the counterpart device using the second communication interface. Communicating with the counterpart device via a second communication path established based on the wireless setting information acquired using
A control method characterized by comprising:   A communication method,
  Using the first communication method, providing identification information for identifying the first communication device in the network according to the second communication method from the first communication device to the second communication device;
  When it is determined based on the identification information that the first communication device and the second communication device can communicate using the first communication path already established by the second communication method. The first communication device and the second communication device communicate via the first communication path,
  When it is not determined based on the identification information that the first communication device and the second communication device can communicate with each other using the first communication path, the first communication device and the second communication device The communication device communicates via a second communication path established based on wireless setting information shared using the first communication method.
  A communication method characterized by the above. The program for functioning a computer as each means with which the communication apparatus of any one of Claim 1 to 17 is provided.

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