JP6211778B2 - COMMUNICATION SYSTEM, COMMUNICATION DEVICE, CONTROL METHOD, AND PROGRAM - Google Patents

Description

  The present invention relates to a communication system, a communication apparatus, a control method, and a program, and more particularly, to a radio communication system, a radio communication apparatus, and a control method for a radio communication apparatus that perform data transmission / reception by radio communication.

  With the spread of wireless communication terminals, wireless LAN communication systems that locally construct wireless communication systems are becoming popular. Also, various modes of use of the wireless LAN communication system have been proposed and put into practical use.

  An access point (AP) as a gateway to a wide area network provides a network service by wireless communication to an information processing device as a wireless LAN (Local Area Network) client. On the other hand, an information processing device having a station (STA) mode function for broadcasting a search request signal and an AP mode function for returning a search response signal to a search request signal transmission source has been proposed. Yes.

  The television signal recording / reproducing device disclosed in Patent Document 1 has a wireless interface as an STA connected to an access point and an interface as an AP connected to the television receiver. The recording / playback device acquires and stores content on the Internet, and distributes the content to a television receiver.

  For example, if a receiver that receives broadcast data using public radio waves as a slave unit of a wireless LAN system has a STA mode function, broadcast data received by a receiver installed in a place with good reception indoors can be transmitted to the user. Can be output at any location specified by. Thereby, the freedom degree of the place where a user views broadcast data increases.

  If a user who has moved indoors can receive the same broadcast data with another base unit at another location, the convenience of the wireless LAN system is further enhanced.

  However, the recording / playback device (child device) disclosed in Patent Document 1 is only connected to one access point (parent device), and a configuration in which a plurality of access points (parent device) receive data is not disclosed. .

  The slave unit of the wireless LAN system as described above has one connection information for the master unit, and transmits data to the master unit according to this connection information.

  If any of the multiple master units tries to receive the data transmitted by the slave unit, broadcast data can be sent directly to the master unit to which the slave unit is connected, but the slave unit is not targeted for connection. The parent device to which the child device is to be connected needs to transfer the received data to the parent device. For this reason, broadcast data is transmitted twice in the wireless LAN system, and a large amount of bandwidth is used for data communication in the wireless LAN system.

  In addition, when another master unit tries to receive broadcast data transmitted from the slave unit, the slave unit needs to reset connection information of the slave unit in order to establish a connection with the new master unit. It was.

  The following communication systems have been proposed for the above problems.

  In the connection request processing of the electronic device disclosed in Patent Document 2, two master-side electronic devices switch the connection with one slave-side electronic device.

  In the connection establishment method disclosed in Patent Document 3, a plurality of connection information and encryption keys are stored in each of a station as a slave unit and two access points as master units.

  In the cordless telephone system disclosed in Patent Document 4, a slave unit in which identification numbers of a plurality of master units are registered switches to a master unit having a good call state according to the measurement result of electric field strength.

JP 2011-0119133 A JP2012-080284A JP 2006-019994 A JP 2001-069237 A

  In the connection request processing disclosed in Patent Document 2, the master-side electronic device 1 cannot be connected to the slave-side electronic device 3 when the slave-side electronic device 3 is connected to the master-side electronic device 2. First, the master electronic device 1 is connected to the master electronic device 2 and transmits the master information of the master electronic device 1 to the slave electronic device 3 via the master electronic device 2. The slave electronic device 3 makes a connection request to the master electronic device 1 based on the master information of the master electronic device 1.

  When the slave-side electronic device 3 changes the connection destination from the master-side electronic device 2 to the master-side electronic device 1, the information used for the connection process is changed from the master information of the master-side electronic device 2 to the master of the master-side electronic device 1. Change to information. For this reason, it is necessary to change the setting of connection processing in the slave-side electronic device 3, and a large processing load is applied to the slave-side electronic device every time the connection destination is changed.

  In the connection establishment method disclosed in Patent Document 3, data to be transmitted to each of a plurality of access points is encrypted and transmitted using different encryption keys according to different connection information. Data transmission processing by a station increases in accordance with the number of destination access points. For this reason, the load about data transmission of the station which is a subunit | mobile_unit becomes large.

  The cordless telephone system disclosed in Patent Literature 4 measures electric field strengths from a plurality of parent devices, and selects a parent device as a signal transmission destination according to the measurement result. For this reason, it is necessary to change the connection setting in order to switch the connection destination master unit, and a large load is applied to the slave unit.

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide a communication system, a communication apparatus, a control method, and a program that reduce the load on the slave unit when switching the connection destination.

  In order to achieve the above object, a communication system of the present invention is a communication system having a first parent device, a second parent device, and a child device, and the child device is a child connected to the first parent device. A first transmission / reception unit, wherein the first master unit is a first storage unit that holds connection information related to the connection with the slave unit, and a first transmission / reception unit that is connected to the slave unit and the second master unit; In response to a request from the second master unit, the first master unit has first connection information management means for providing connection information held in the first storage unit to the second master unit. A second storage unit that stores connection information provided from the first storage unit; a second transmission / reception unit that connects to the first base unit; and a request to provide connection information to the first base unit. It has the 2nd connection information management means, It is characterized by the above-mentioned.

  The communication device of the present invention is a communication device that connects to the slave unit and other communication devices, and connects to the storage unit that holds connection information related to the connection with the slave unit and to the slave unit and other communication devices. A transmission / reception means, and a slave unit connected to the other communication apparatus, having connection information management means for providing the connection information held in the storage means in response to a request from the other communication apparatus to the other communication apparatus; In the case of connection, the transmission / reception means connects to another communication apparatus, and the connection information management means requests the other communication apparatus to provide connection information related to the connection with the slave unit.

  Furthermore, the control method of the present invention is a control method for a communication system having a first master unit, a second master unit, and a slave unit, using the connection information held by the first master unit. Connecting the machine to the first master machine, connecting the second master machine to the first master machine, requesting connection information from the second master machine to the first master machine, Providing connection information from the first base unit to the second base unit.

  The control program of the present invention is a control program for a communication device that is connected to the slave device and other communication devices, and the process for connecting to the slave device using connection information held by the communication device, and other communication When connecting to a slave unit connected to a communication device, a process of providing connection information to another communication device in response to a request from another communication device, and a slave unit connected to another communication device, It is characterized by causing a computer to perform processing for connecting to a communication device and processing for requesting other communication devices to provide connection information related to connection with a slave unit.

  ADVANTAGE OF THE INVENTION According to this invention, the load of the subunit | mobile_unit at the time of connection destination switching can be reduced.

1 shows an exemplary configuration of a communication system according to a first embodiment of the present invention. 1 shows an exemplary configuration of a communication apparatus according to a first embodiment of the present invention. An example of the structure of the radio | wireless communications system which concerns on the 2nd Embodiment of this invention is shown. An example of the process of the control method of the radio | wireless communication apparatus which concerns on the 2nd Embodiment of this invention is shown. An example of the structure of the search request signal transmitted from the portable terminal which concerns on the 2nd Embodiment of this invention is shown. An example of the structure of the connection information management part which concerns on the 2nd Embodiment of this invention is shown. An example of the structure of the radio | wireless communications system which concerns on the 3rd Embodiment of this invention is shown. An example of the structure of the connection control part which concerns on the 3rd Embodiment of this invention is shown. An example of the process of the control method of the wireless LAN terminal which concerns on the 3rd Embodiment of this invention is shown.

The best mode for carrying out the invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiments described below.
[First Embodiment]
FIG. 1 shows an example of the configuration of a communication system according to the first embodiment of the present invention.

  The communication system 101 according to the present embodiment includes a first parent device 110, a second parent device 120, and a child device 130.

  The subunit | mobile_unit 130 has the subunit | mobile_unit transmission / reception means 131 connected to the 1st main | base station 110. FIG.

  The first base unit 110 includes a first storage unit 111, a first transmission / reception unit 113, and a first connection information management unit 112.

  The first storage unit 111 holds connection information related to the connection with the child device 130. First transmission / reception means 113 is connected to slave unit 130 and second master unit 120. The first connection information management unit 112 provides connection information held in the first storage unit 111 to the second base unit 120 in response to a request from the second base unit 120.

  The second master unit 120 includes a second storage unit 121 that stores connection information provided from the first storage unit 111, a second transmission / reception unit 123 connected to the first base unit 110, and a first Second connection information management means 122 that requests connection information to the parent device 110 of the second device.

  FIG. 2 shows an example of the configuration of the communication apparatus according to the first embodiment of the present invention.

  The communication device 210 according to the present embodiment is a communication device that is connected to the slave unit and other communication devices.

  The communication device 210 includes a storage unit 211, a transmission / reception unit 213, and a connection information management unit 212. The storage unit 211 holds connection information related to the connection with the child device. The transmission / reception means 213 is connected to the slave unit and other communication devices. The connection information management unit 212 provides connection information held in the storage unit 211 to another communication device in response to a request from another communication device.

  When connecting to a slave unit connected to another communication device, the transmission / reception means 213 is connected to the other communication device, and the connection information management unit 212 is connected to the other communication device regarding connection with the slave unit. Request information.

In the communication system 101 according to the present embodiment, it is possible to reduce the load on the slave unit 130 when switching the connection destination.
[Second Embodiment]
Next, with reference to FIG. 3 thru | or 6, the structure and operation | movement of the radio | wireless communications system which concern on the 2nd Embodiment of this invention are demonstrated.
[Constitution]
FIG. 3 shows an example of the configuration of a wireless communication system according to the second embodiment of the present invention.

  The wireless communication system 301 according to the present embodiment includes mobile terminals 310 and 320 as master units and a wireless tuner 330 as a slave unit.

  In addition, although the radio | wireless communications system 301 which concerns on this embodiment has two portable terminals, it is not limited to this. The number of portable terminals may be three or more.

  The wireless tuner 330 includes a tuner 334, a STA radio transmission / reception unit 331, a tuner control unit 333, and a storage unit 332. The tuner 334 demodulates broadcast data from the received radio wave. By the STA wireless transmission / reception unit 331, the wireless tuner 330 operates in a station mode of wireless LAN communication. The tuner control unit 333 controls the tuner 334 to acquire broadcast data of the selected channel. The storage unit 332 holds connection information between the wireless tuner 330 and the portable terminal 310.

  The portable terminal 310 includes an input / output unit 315, a handset tuner control unit 316, an AP wireless transmission / reception unit 314, a STA wireless transmission / reception unit 313, a connection information management unit 312, and a storage unit 311.

  The input / output unit 315 accepts user operations and displays information about broadcast data on a display unit (not shown) to the user. The slave unit tuner control unit 316 generates a control request for the tuner 334 of the wireless tuner 330. By the AP wireless transmission / reception unit 314, the mobile terminal 310 operates in an access point mode of wireless LAN communication and is connected to the wireless tuner 330 and the mobile terminal 320. Also, the mobile terminal 310 operates in the station mode of wireless LAN communication by the STA wireless transmission / reception unit 313, and connects to another access point (not shown). The storage unit 311 holds connection information for connecting the mobile terminal 310 and the wireless tuner 330.

  The connection information management unit 312 activates the AP radio transmission / reception unit 314 when the mobile terminal 310 and the wireless tuner 330 are connected, and when the mobile terminal 310 acquires connection information from another mobile terminal, the connection information management unit 312 The transmission / reception unit 313 is activated.

  In the present embodiment, the wireless transmission / reception unit of the mobile terminal has both a wireless transmission / reception unit for an access point (AP) and a wireless transmission / reception unit for a station (STA). However, the present invention is not limited to this. In one wireless transmission / reception unit, the access point function and the station function may be switched and used.

  The portable terminal 320 includes an input / output unit 325, a slave unit tuner control unit 326, an AP wireless transmission / reception unit 324, a STA wireless transmission / reception unit 323, a connection information management unit 322, and a storage unit 321. Each element has the same function as the input / output unit 315, the handset tuner control unit 316, the AP wireless transmission / reception unit 314, the STA wireless transmission / reception unit 313, the connection information management unit 312, and the storage unit 311 of the portable terminal 310. The description is omitted.

  The connection information held in the storage units 311, 321, and 332 of the portable terminals 310 and 320 and the wireless tuner 330 stores an SSID (Service Set IDentifier) and an encryption key (KEY) necessary for connection to the wireless LAN. .

  FIG. 6 shows an example of the configuration of the connection information management unit 312 according to the present embodiment. Note that the configuration of the connection information management unit 322 is the same as this, and a description thereof will be omitted.

  The connection information management unit 312 includes a search request control unit 601, a request SSID detection unit 602, a connection management unit 603, and a connection information notification unit 604. The search request control unit 601 adds the extension information to the search request (Probe Request) received from the AP wireless transmission / reception unit 314 and performs a search response (Probe Response). Note that whether or not the extension information needs to be added can be controlled by the user.

  An extended IE including SSID information indicating that connection information provision is requested is added to the search response in response to the search request designating the SSID of the own device. Hereinafter, this SSID information is referred to as a request SSID.

  The request SSID detection unit 602 receives a beacon signal that propagates around the mobile terminal 310 and searches for a mobile terminal that operates using the request SSID included in the extended information added to the search response. When the request SSID detection unit 602 detects an operating portable terminal, the request SSID detection unit 602 inquires of the user whether connection information can be provided. The connection management unit 603 performs a connection process with the mobile terminal 320 according to a standard procedure such as WPS (Wi-Fi Protected Setup). In response to a request from the connection management unit 603, the connection information notification unit 604 provides information such as connection information. WPS is one of the standards for executing connection of wireless LAN devices and setting of security.

Note that the exchange of connection information between the access point and the station follows a known method of a standard such as WPS. Details of the procedure are omitted.
[Operation]
Next, the operation of the wireless communication system according to the present embodiment will be described with reference to FIGS.

  FIG. 4 shows an example of a procedure of processing between terminals in the wireless communication system according to the second embodiment of the present invention.

  In order to start viewing, the portable terminal 310 designates the SSID and activates the AP wireless transmission / reception unit 314 (S401).

  The wireless tuner 330 makes a search request by specifying the SSID of the connection information held by itself (S402).

  In response to this search request, the portable terminal 310 returns a search response (S403). Thereby, the wireless tuner 330 detects and connects the portable terminal 310 as an access point (S404).

  After the portable terminal 310 is connected to the wireless tuner 330, the slave unit tuner control unit 316 issues a tuner control request (S405), and acquires broadcast data from the wireless tuner 330 (S406).

  Through the above procedure, the mobile terminal 310 can view broadcast data.

  Next, the portable terminal 320 requests acquisition of broadcast data from the wireless tuner 330.

  FIG. 5 shows an example of a search response data string.

  The AP wireless transmission / reception unit 314 of the mobile terminal 310 responds to a search request with the SSID set to ANY with a search response to which an extended IE (Information Element: Information Element) indicating that it has a function of providing connection information is added (see FIG. 5 of 500) is returned. ANY is an SSID name designated when inquiring about the SSID.

  In addition, in response to a search request designating the SSID of the own device, it indicates that connection information provision is requested (the portable terminal 320 requests provision to the portable terminal 310) SSID information (hereinafter referred to as a request SSID). The search response (501 in FIG. 5) is returned.

  Note that the requested SSID information included in the extended IE may be encrypted. As an encryption key, for example, an SSID may be used, or encryption may be performed using a common key.

  When the portable terminal 320 requests provision of connection information, a search request is made with the SSID as ANY (S407). Based on the search response returned from the mobile terminal 310, the mobile terminal 320 detects that the mobile terminal 310 provides connection information (S408).

  The mobile terminal 320 makes a search request by designating the SSID of the mobile terminal 310 (S409), and acquires the request SSID included in the search response returned from the mobile terminal 310 (S410).

  The portable terminal 320 transmits a beacon using the acquired request SSID (S411).

  The portable terminal 310 detects a beacon having the requested SSID (S412), and inquires whether the user can provide connection information to the portable terminal 320 (S413).

  The request for provision of connection information is displayed on the input / output unit 315. The user sees this, selects whether or not to provide connection information, and inputs the connection information via the input / output unit 315.

  When the user permits provision of connection information, the mobile terminal 310 starts a connection procedure with the mobile terminal 320 according to a procedure defined in a standard such as WPS, and waits for a response from the mobile terminal 320 (S414). .

  The portable terminal 320 stops the beacon after a period of time assumed to be necessary for the beacon detection by the portable terminal 310, and searches for an access point that is permitted to connect in accordance with the WPS standard. (S415).

  The mobile terminal 320 detects the mobile terminal 310 that has started the connection procedure as an access point, and connects to the mobile terminal 310 (S416).

  After the connection with the mobile terminal 310, the mobile terminal 320 requests the mobile terminal 310 to provide connection information and acquires the connection information (S417).

  After providing the connection information to the portable terminal 320, the portable terminal 310 stops the AP wireless transmission / reception unit 314 and terminates the function of the access point (S418).

  When the connection between the portable terminal 320 and the portable terminal 310 is completed (S419), the portable terminal 320 cannot detect the SSID of the portable terminal 310. The portable terminal 320 uses the connection information provided from the portable terminal 310 to activate the AP wireless transmission / reception unit 324 (S420).

  The wireless tuner 330 detects that the connection with the mobile terminal 310 is terminated when the access point function of the mobile terminal 310 is stopped. The wireless tuner 330 uses the connection information stored in the storage unit 332 to connect to the mobile terminal 320 that has started the AP wireless transceiver unit with the same SSID as the mobile terminal 310 and started the access point function (S421). ).

  In the wireless communication system according to the present embodiment, the example in which the procedure for connecting the mobile terminal 320 to the mobile terminal 310 is executed according to the procedure defined in WPS is shown, but the present invention is not limited to this. The encryption key (KEY) given in advance may be held in each of the mobile terminal 310 and the mobile terminal 320. As a result, the encryption key (KEY) data exchange process in the WPS procedure is not required, and the processing time can be shortened.

  In this embodiment, the mobile terminal 320 makes a search request with the SSID set to ANY in order to search for a terminal that provides connection information. However, the present invention is not limited to this. The mobile terminal 320 may make a search request by designating an SSID from the beginning.

  Further, in the present embodiment, the mobile terminal 310 returns a search response with an extended IE indicating that connection information is provided in response to a search request with an SSID of ANY, but is not limited thereto. The mobile terminal 310 may return a search response with an extended IE including the request SSID in response to a search request with an SSID of ANY.

  After the mobile terminal 310 provides connection information to the mobile terminal 320 and stops the access point function, there may be no terminal that activates the access point function using the provided connection information in the wireless LAN area. . For example, the mobile terminal 320 may fail to activate the access point function or go out of the wireless LAN area. In such a case, the mobile terminal 310 may be configured to start the AP wireless transmission / reception unit again and start connection with the wireless tuner 330. Thereby, the broadcast data transmitted by the wireless tuner 330 is not wasted.

  In addition, when the mobile terminal 310 provides the mobile terminal 320 with connection information with respect to the slave unit, the mobile terminal 310 may transmit information used between the master unit and the slave unit, such as content license information. As a result, it is not necessary to separately acquire information necessary for reproduction of content data whose copyright is controlled.

  Further, an expiration date may be set in connection information necessary for connection with the slave unit. This makes it possible to control the period during which the slave unit is used.

Further, control information for designating whether or not the connection information can be provided to another mobile terminal may be added to the provided connection information. That is, the provided connection information may be held in the storage unit of the mobile terminal and may be provided to other mobile terminals upon request. Alternatively, the connection information may be discarded when the portable terminal ends the connection with the wireless tuner 330. As a result, the range of portable terminals that can receive broadcast data from the wireless tuner 330 can be controlled.
[effect]
In the wireless communication system according to the present embodiment, the connection information of the slave unit (wireless tuner 330) is transferred between the master units (mobile terminals 310 and 320), so that the transferred master unit can be connected to the slave unit. Enable. There is no change in the connection information held by the slave unit.

  It is not necessary to change the setting of the slave unit due to the change of the master unit to be connected. Therefore, the user does not need to operate the slave unit. For example, when the child device is installed in a place where the user cannot easily approach, the user does not need to operate the child device.

  Further, the slave device does not need to modify the connection information in accordance with the change of the master device to be connected. Since the setting parameter correction process required for connection to the access point is not required, it is only necessary to connect to the changed base unit without correcting the setting parameter. For this reason, the processing load of the slave unit is reduced.

  Further, once connected, the parent device holds the connection information of the child device, and the connection information is not changed by changing the parent device. For this reason, when the master unit once connected to the slave unit connects to the slave unit again, it is not necessary to transfer the connection information. If the AP wireless transceiver is activated in response to the transfer instruction, it can be connected to the slave unit. is there.

  Further, communication of broadcast data is performed on a one-to-one basis between the child device and the parent device. When trying to view broadcast data on another parent device without changing the connection between the child device and the parent device, it is necessary to transfer broadcast data that occupies a large band between the parent devices. The wireless communication system according to the present embodiment does not require such double data communication, and wasteful consumption of communication resources is suppressed.

  In addition, it is not preferable in terms of copyright management to store license information in a parent device that does not have a secure storage unit. Even in such a parent device, it is possible to execute connection processing upon receiving provision of license information from a parent device having a secure storage unit.

In the present embodiment, the SSID is used as an identifier of a communication device that is connected via a wireless LAN and transmits / receives data. However, the present invention is not limited to this. ) May be used.
[Third Embodiment]
Next, a radio communication system according to the third embodiment of the present invention will be described with reference to FIGS.

  FIG. 7 shows an example of the configuration of the wireless communication system according to the present embodiment.

  A wireless communication system 701 according to the present embodiment includes a wireless LAN terminal 710 and a debug control terminal 720 as parent devices.

  Further, the wireless communication system 701 includes a PC 730 as a slave unit. The slave unit is not limited to a PC (Personal Computer), but may be any information processing apparatus having a STA mode wireless transmission / reception means. The wireless LAN terminal 710 transmits debug information obtained by the debugging work to the PC 730. The debug information may be displayed on a display unit (not shown) of the wireless LAN terminal 710.

  The wireless LAN terminal 710 includes a wireless transmission / reception unit 713, a function unit 717 that processes normal operations, a debugging unit 718 that performs debugging procedure processing, and a connection control unit 712. The wireless LAN terminal 710 further includes a storage unit 711 that holds authentication information for permitting access to the debug unit 718.

  The debug control terminal 720 includes a storage unit 721, a connection control unit 722, and a wireless transmission / reception unit 723.

  FIG. 8 shows an example of the configuration of the connection control unit 712 of the wireless LAN terminal 710 according to the present embodiment.

  The connection control unit 712 includes a search request control unit 801, a request SSID detection unit 802, and a debug request permission control unit 803.

  The search request control unit 801 and the request SSID detection unit 802 have the same functions as the search request control unit 601 and the request SSID detection unit 602 in the second embodiment, and thus description thereof is omitted.

  FIG. 9 shows an example of processing of the control method of the wireless LAN terminal 710 and the debug control terminal 720 according to the present embodiment.

  FIG. 9 is the same as the processing from step S407 to step S417 of the control method of the wireless communication system according to the second embodiment shown in FIG. 4 except for step S417. In the present embodiment, authentication information for accessing the debug unit 718 is provided to the debug control terminal 720. The debug control terminal 720 accesses the debug unit 718 using the authentication information. Description of other processing is omitted.

  In normal operation, access to the debug unit 718 and output from the debug unit 718 are blocked by the debug request permission control unit 803. For this reason, the debug unit 718 is not operated from the outside.

  For example, when a serviceman wants to execute processing accessing the debug unit 718 such as when acquiring internal data to check the internal state of the wireless LAN terminal 710, the user notifies the request SSID with the wireless LAN terminal 710. Is permitted (S914).

  At this time, if the debug control terminal 720 that uses the request SSID included in the search response of the wireless LAN terminal 710 does not exist in the vicinity, the debug request permission control unit 803 suppresses input / output to the debug unit 718. For this reason, access to the debug unit 718 is blocked.

  When the debug control terminal 720 exists as a wireless LAN terminal that operates with the requested SSID, the debug unit 718 can be accessed.

  The debug request permission control unit provides authentication information held in the storage unit 711 to the debug control terminal 720. When the debug control terminal 720 accesses the debug unit 718 using the authentication method, access from the debug control terminal is permitted.

  Thereby, for example, access to the internal information of the wireless LAN terminal 710 is permitted only within the store as a wireless LAN area. Alternatively, the debug unit 718 can be accessed by the debug control terminal 720 of the service person.

  In addition, information on a plurality of request SSIDs may be displayed on a display unit (not shown), and may be selected by the user, and the stage of controlling access to the debug unit 718 may be changed according to the request SSID that is operating.

  For example, when the first request SSID is used, only confirmation of internal information is permitted, and when the second request SSID is used, control of enabling rewriting of internal information is possible.

  Furthermore, by encrypting a plurality of request SSIDs with mutually different encryption keys, it is possible to control the detectable range of internal information.

  In the wireless communication system according to the present embodiment, access to the debug unit is permitted only for access using the requested SSID within the communication range of the wireless LAN, so the range of provision of internal information of the debug unit is controlled. be able to. Therefore, it is possible to access the debug unit with a simple operation while maintaining high security.

  A program for executing the above-described processing operations is stored and distributed in a computer-readable recording medium such as a flexible disk, a CD-ROM (Compact Disk Read-Only Memory), and an MO (Magneto-Optical disk). A device that executes the above-described processing operation may be configured by installing the program in a computer.

  The present invention is not limited to the above embodiment, and can be suitably applied to a wireless communication system having a plurality of wireless communication devices.

DESCRIPTION OF SYMBOLS 101 Communication system 110 1st main | base station 111 1st memory | storage means 112 1st connection information management means 113 1st transmission / reception means 120 2nd main | base station 121 2nd memory | storage means 122 2nd connection information management means 123 Second transmission / reception means 130 Child machine 131 Child machine transmission / reception means 210 Communication device 211 Storage means 212 Connection information management means 213 Transmission / reception means 301, 701 Wireless communication system 310, 320 Portable terminal
311, 321, 332, 711, 721 Storage unit 312, 322 Connection information management unit 313, 323 331 STA wireless transmission / reception unit 314, 324 AP wireless transmission / reception unit 315, 325 Input / output unit 316, 326 Slave unit tuner control unit 330 Wireless Tuner 333 Tuner control unit 334 Tuner 601, 801 Search request control unit 602, 802 Request SSID detection unit 603 Connection management unit 604 Connection information notification unit 710 Wireless LAN terminal 712, 722 Connection control unit 713, 723 Wireless transmission / reception unit 717 Function unit 718 Debug unit 720 Debug control terminal 730 PC
803 Debug request permission control unit

Claims (8)

A communication system having a first master unit, a second master unit, and a slave unit,
The slave unit has a slave unit transmission / reception means connected to the first master unit,
The first master unit includes a first storage unit that holds connection information related to the connection with the slave unit, a first transmission / reception unit that connects to the slave unit and the second master unit, and the second master unit. First connection information management means for providing the connection information held in the first storage means to the second master in response to a request from the master;
The second base unit includes a second storage unit that stores the connection information provided from the first storage unit, a second transmission / reception unit that connects to the first base unit, and the first base unit. have a second connection information managing means for requesting the provision of the connection information to the base unit,
The first transmission / reception means ends the connection with the slave unit after providing the connection information to the second master unit,
The second transmission / reception means uses the provided connection information to connect to the slave unit,
The communication system characterized in that the slave unit transmission / reception unit is connected to the second transmission / reception unit without performing processing for changing the connection with the first master unit . The first transmission / reception means includes a first AP (Access Point) transmission / reception means for connecting to the slave unit and the second master unit as an access point,
The second transmission / reception means is connected to the first AP transmission / reception means as a station and provided with the connection information, and the connection information is used as an access point using the connection information. A second AP transmitting / receiving means for connecting to the slave unit;
The slave unit further includes a slave unit storage unit that holds slave unit side connection information related to the connection with the first master unit,
The said subunit | mobile_unit transmission / reception means connects to the said 1st AP transmission / reception means or the said 2nd AP transmission / reception means as a station using the said subunit | mobile_unit side connection information, The said 2nd AP transmission / reception means is characterized by the above-mentioned. Communication system. Said connection information and said slave unit connection information includes said first said information for communicating with the base unit of the first base unit of SSID (Service Set IDentifier),
The second connection information management means sends a search response sent by the first connection information management means in response to a search request sent to the first parent machine by specifying an SSID of the first parent machine. 3. The communication system according to claim 2, wherein a request SSID included in the request is used to request the first connection information management means to provide the connection information. 4. A communication device connected to a slave unit and other communication devices,
Storage means for holding connection information related to connection with the slave unit;
Transmitting / receiving means for connecting to the slave unit and the other communication device;
Connection information management means for providing the connection information held in the storage means to the other communication apparatus in response to a request from the other communication apparatus;
When connecting to the slave unit connected to the other communication device, the transmission / reception means is connected to the other communication device, and the connection information management unit is connected to the other communication device. After requesting the provision of connection information regarding the connection with the other communication device, obtaining the connection information provided from the other communication device, and the transmission / reception means, after the other communication device ends the connection with the slave unit Using the connection information provided from the other communication device, the slave unit can connect to the transmission / reception means without performing processing for changing the connection with the other communication device. communication apparatus characterized by a. A control method for a communication system having a first master unit, a second master unit, and a slave unit,
Connecting the slave unit to the first master unit using connection information held by the first master unit;
Connecting the second base unit to the first base unit;
Requesting the connection information from the second parent device to the first parent device, providing the connection information from the first parent device to the second parent device ;
After the connection information is provided from the first parent device to the second parent device, terminating the connection between the first parent device and the child device;
The provided connection information is used by the second parent device, so that the child device does not perform processing for changing the connection between the first parent device and the child device. Connecting to the second master unit;
A control method comprising: The step of connecting the slave unit to the first master unit is performed by using the slave unit side connection information held by the slave unit using the slave unit as a station and the first master unit as an access point. ,
The second step of the base unit communicates with said first master unit, the second base unit as a station, characterized by connecting the first base unit as an access point, according to claim 5 The control method described in 1. Said connection information and said slave unit connection information includes a SSID of the base device information and the first for communicating with the first base unit,
The step of requesting the connection information from the second base unit to the first base unit includes:
Designating the SSID of the first master unit from the second master unit to the first master unit, and transmitting a search request;
Transmitting a search response including a request SSID from the first base unit to the second base unit;
The method according to claim 6 , further comprising: requesting the first master unit to provide the connection information from the second master unit to the first master unit using the request SSID. A control program for a communication device connected to a slave unit and other communication devices,
Using the connection information held by the communication device, processing to connect to the slave unit,
Processing to connect to the other communication device;
In response to a request from the other communication device, a process of providing the connection information to the other communication device;
When connecting to the child device connected to the other communication device, request to provide connection information regarding the connection to the child device and processing to connect to the other communication device. Processing for acquiring the connection information provided from the other communication device, and processing for changing the connection between the slave unit and the other communication device using the connection information A control program for causing a computer to perform a process of enabling connection of the slave unit without performing the process .

Images