JP2015023439A - Wireless lan setting device and device to be set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate an easy wireless LAN setting, particularly for a wireless LAN for indoor use, without being eavesdropped of setting information by a third party from outdoor and without requesting any operation for wireless LAN connection to a user of a terminal subject to the wireless LAN setting.SOLUTION: A beam sweep control part 103 sweeps a beam direction of a directional antenna ATa2. A modulation-demodulation part 104 modulates a signal to be transmitted through the directional antenna ATa2 to a high frequency signal. A beacon transmission part 105a transmits a high frequency beacon through the directional antenna ATa2 while sweeping the beam. A directional communication channel establishment part 105c establishes a tentative directional communication channel in a high frequency band between a smartphone MN by responding a high frequency signal from the directional antenna ATa2 for connection request transmitted by the smartphone MN. A wireless LAN setting part 105d performs a wireless LAN setting of the smartphone MN using the tentative directional communication channel.

Description

  The present invention relates to a wireless LAN setting device and a device to be set for setting a wireless LAN connection to a device to be set having a wireless LAN cordless handset function, and more particularly to setting a wireless LAN without an operation to the device to be set. The present invention relates to a wireless LAN setting device and a device to be set.

In recent years, wireless LAN devices (devices to be set) equipped with a wireless LAN slave device function, represented by smartphones, portable game machines, digital photo frames, and the like, are rapidly spreading. When using these wireless LAN devices, it is necessary to set up a connection with an access point (setting device) that is a base unit of a wireless LAN prepared in advance by the user. In the wireless LAN connection setting, the following setting information is registered in the device to be set as information used for authentication at the time of wireless LAN connection.
(1) SSID (Service Set Identifier: network identifier provided by the access point)
(2) Password to connect to each SSID

  FIG. 8 is a schematic diagram showing a general authentication procedure for wireless LAN connection. Here, a setting device represented by an access point AP is a device to be set represented by a smartphone (wireless LAN device) MN. A case where wireless LAN setting is performed will be described as an example.

  The access point AP is pre-registered with the SSID and its password, and provides communication through itself to other terminals and devices. SSID “ABC” and password “XXX” are registered in the first access point AP1. SSID “DEF” and password “YYY” are registered in the second access point AP2.

  In the wireless areas of the access points AP1 and AP2, only the smartphone MN in which the respective SSID and password are registered is permitted for wireless communication. In the example of FIG. 8, the smartphone MN can use the external Internet by establishing a wireless connection with the access point AP1.

  On the other hand, since the SSID “DEF” and password “YYY” of the access point AP2 are not registered in the smartphone MN, a wireless connection cannot be established with the access point AP2 even if it enters the wireless area of the access point AP2. . The SSID and password of each access point AP1, AP2 are generally fixed values. Therefore, when there is an access point AP that wants to establish a wireless connection, it is necessary to register the SSID and password by inputting them into the smartphone MN.

  Next, a procedure for registering wireless LAN setting information in the smartphone MN will be described with reference to FIG.

  Generally, a sticker with a SSID and password printed in advance on the access point AP is attached to the side or bottom of the access point AP, and this SSID and password are registered in the smartphone MN. Wireless LAN connection becomes possible.

  When the user registers the SSID and password in the device to be set, first check the SSID and password printed on the sticker of the access point AP visually, and once write it on paper etc. if necessary, then the SSID and password Enter each character string in the smartphone MN and register it.

  In this input and registration work, the wireless LAN setting screen is displayed on the screen of the smartphone MN, and the setting of the wireless LAN is started by selecting an item instructing the start of the setting. After that, a list of SSIDs of a plurality of connectable networks is displayed on the screen of the smartphone MN. Depending on the smartphone MN, the SSID may not be displayed in a list, and a screen that prompts the user to input the SSID may be displayed. The user selects one desired SSID from the list of SSIDs displayed on the screen of the smartphone MN, or inputs the SSID character string from the keyboard or the like.

  As described above, since the wireless LAN setting procedure is very complicated, registration work may be difficult for a user with low IT literacy. Therefore, Non-Patent Document 1 discloses a technique for easily realizing the above-described procedure.

  In Non-Patent Document 1, in order to easily set SSID and password setting information in the device to be set, dedicated software newly added to the device to be set and the setting device is in a format according to a rule that has been independently defined. By sending and receiving the message created in step S1, the SSID and password registered in the setting device are registered in the device to be set. In Non-Patent Document 1, connection processing proceeds in two stages in order to share SSID, password, encryption type, etc. (hereinafter referred to as setting information) used in wireless LAN communication (this communication channel) with the same value.

  In the first stage, a temporary setting wireless LAN communication path (temporary communication path) used for communication for sharing the setting information used in this communication path is established. In the second stage, this temporary communication path is established. This communication path is established by exchanging the setting information for this communication path using.

  Generally, the setting information used in this communication path is a unique value for each access point and is unknown to the client. In Non-Patent Document 1, the setting information for establishing a temporary communication path is a value common to all devices. That is, in Non-Patent Document 1, since it is necessary to exchange unknown setting information used in this communication path not with a wired LAN but with a wireless LAN, a temporary communication path is established with the known setting information.

  However, in the wireless LAN setting method disclosed in Patent Document 1, if the setting information of the temporary communication path leaks, the setting information of the communication path can be eavesdropped by misusing this setting information. On the other hand, if an encryption process is performed so that the setting information of the temporary communication path is not leaked, a complicated operation must be added. Therefore, in Patent Document 1, in order to facilitate the establishment of a temporary communication path, it is assumed that the setting information of the temporary communication path is known to the vendor but unknown to the user of the wireless LAN device. Common to all terminals.

  However, wireless LAN is basically omnidirectional and has the property of penetrating objects that create boundaries such as walls and floors, so malicious third parties outside can intercept the setting information of temporary communication paths. End up.

  In response to such a technical problem, in Non-Patent Document 2, in the wireless LAN setting method in which the setting procedure is performed in two stages as in Non-Patent Document 1, in the first stage, the output of high frequency and radio waves is reduced. By using near field communication (NFC) with a communication distance limited to a short distance, provisional communication path setting information is not intercepted.

AOSS (AirStation One-Touch Secure System: http://www.buffalotech.com/content/files/resource_center/AOSS_Whitepaper.pdf NFC (Near Field Communication) http://apps4android.org/nfc-specifications/NFCForum-TS-Type-1-Tag_1.1.pdf http://apps4android.org/nfc-specifications/NFCForum-TS-Type-2 -Tag_1.1.pdf http://apps4android.org/nfc-specifications/NFCForum-TS-Type-3-Tag_1.1.pdf http://apps4android.org/nfc-specifications/NFCForum-TS-Type-4 -Tag_2.0.pdf

  According to the technique of Patent Document 1, in order to prevent unauthorized use of a wireless LAN setting device, a button dedicated to wireless LAN setting is provided in the wireless LAN setting device and the button of the wireless LAN setting device is pressed. There is a limit for accepting settings from the set terminal for a certain period of time. This is because only authorized users exist in the same physically closed space where the wireless LAN setting device is installed, and only authorized users can operate the buttons on the wireless LAN setting device. It is a premise.

  In general, it is unlikely that a regular user and an unauthorized user exist in the same space, and an unauthorized user exists in a different space from the authorized user. Therefore, if an unauthorized user issues a setting request repeatedly from different spaces with the aim of pressing the button of the wireless LAN setting device, the wireless LAN is basically omnidirectional and creates a boundary such as a wall or floor. Because it has the property of penetrating objects, it allows unauthorized users to use the wireless LAN setting device.

  According to the technique of Patent Document 2, the setting information for the temporary communication path cannot be obtained unless the terminal to be set is brought into contact with the wireless LAN setting device substantially, so that it is possible to prevent eavesdropping of the setting information by an outdoor third party. it can. However, even when a legitimate user acquires the setting information, an operation for bringing the set terminal into contact with the wireless LAN setting device is required, which forces the user to perform an extra operation. In addition, it is difficult for a user who does not even know that setting information needs to be acquired to establish a wireless LAN connection to perform a contact operation.

  The object of the present invention is to solve the above-described problems of the prior art, and particularly to a wireless LAN used indoors, the setting information can be set to an outdoor third party without being intercepted by the outdoor third party. Provided a wireless LAN setting device and a device to be set that can easily set the wireless LAN without accepting the request and without requiring any operation for wireless LAN connection to the user of the wireless LAN target terminal. There is to do.

  In order to achieve the above object, the present invention is characterized in that a wireless LAN setting device and a device to be set have the following configurations.

  (1) A wireless LAN setting device according to the present invention includes a directional antenna that transmits and receives a high-frequency signal, a beacon transmission unit that transmits a beacon modulated with a high frequency from the directional antenna, and a temporary connection request for the beacon from the device to be set. A connection request receiving means for receiving, a directional communication path establishment means for establishing a directional temporary communication path in a high frequency band with the set device in response to a temporary connection request with a high-frequency signal from a directional antenna; Wireless LAN setting means for performing wireless LAN setting on the device to be set using a temporary communication channel.

  (2) The wireless LAN setting device of the present invention further includes beam sweep control means for sweeping the beam direction of the directional antenna, and the beacon transmission means performs beam sweep of the beacon modulated with high frequency from the directional antenna. I sent it.

  (3) When the wireless LAN set device of the present invention receives a high-frequency beacon advertised by a directional antenna and a wireless LAN setting device by the directional antenna, a temporary connection request is sent to the wireless LAN setting device. Temporary connection request means for transmitting, directional communication path establishment means for establishing a directional temporary communication path in a high frequency band between the setting device and a response to the temporary connection request, and a directional temporary communication path are used. Wireless LAN setting means for performing wireless LAN setting based on wireless LAN setting information transmitted from the setting device.

  (4) The wireless LAN set device of the present invention further comprises beam sweep control means for sweeping the beam direction of the directional antenna.

  (5) The wireless LAN set device of the present invention further includes means for detecting movement of the own terminal after the beacon is received, direction estimation means for estimating the arrival direction of the beacon based on the movement history of the own terminal, Beam direction determining means for directing the beam direction of its own directional antenna in the estimated direction of arrival, and the temporary connection request means transmits the temporary connection request from the directional antenna in the changed direction. did.

According to the present invention, the following effects are achieved.
(1) Beacons and messages broadcast from wireless LAN setting devices are modulated and transmitted to high-frequency signals with a high degree of straightness, so they are reflected on the surface of the interior without passing through side walls or obstacles. stay. Therefore, it becomes difficult for a device to be set outdoors to intercept a beacon or a message, and it is possible to prevent these devices to be set from performing wireless LAN setting against the intention of the wireless LAN setter.

(2) Since the wireless LAN setting device transmits a beacon of a high-frequency signal from the directional antenna while sweeping the beam direction, the wireless LAN device to be set up is a high-directivity high-frequency signal relative to the setting device. It becomes easy to receive regardless of the general positional relationship.

  (3) Since the wireless LAN device receives a beacon of a high-frequency signal while sweeping the beam direction of the directional antenna, the wireless LAN device has a high-directivity high-frequency beacon with the setting device. It becomes easier to receive regardless of the relative positional relationship.

  (4) Since the device to be set for wireless LAN estimated the arrival direction of the beacon based on its own movement history after receiving the beacon, and set the beam direction of the directional antenna in that direction, Even if the wireless LAN set device is a mobile terminal such as a smartphone, it is possible to perform communication using a high-directivity high-frequency signal.

It is the figure which showed the example of the environment of the wireless LAN network to which this invention is applied. 1 is a functional block diagram of a wireless LAN setting device and a device to be set according to a first embodiment of the present invention. It is the sequence flow which showed the operation | movement of 1st Embodiment of this invention. It is a functional block diagram of the setting apparatus of a wireless LAN which concerns on 2nd Embodiment of this invention, and a to-be-set apparatus. It is the sequence flow which showed the operation | movement of 2nd Embodiment of this invention. It is a functional block diagram of a wireless LAN setting device and a device to be set according to a third embodiment of the present invention. It is the sequence flow which showed the operation | movement of 3rd Embodiment of this invention. It is the figure which expressed the authentication method of wireless LAN typically. It is the figure which expressed the conventional wireless LAN setting method typically.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing an example of an environment of a wireless LAN network to which the present invention is applied. Here, a smartphone MN as a set device and a wireless LAN access point (hereinafter referred to as a wireless AP) as a setting device are shown. In an environment where a third-party smartphone MNx is located outside the room and there is a third-party smartphone MNx, wireless LAN settings for establishing a wireless LAN connection only between the smartphone MN and the wireless AP in the room The case where it performs with respect to smart phone MN from wireless AP is demonstrated.

  Both the smartphone MN and the wireless AP are equipped with a wireless LAN module (slave unit function) compliant with the IEEE 802.11 standard and its antenna, and a high-frequency communication module and its antenna that transmit and receive high-frequency signals. In the present embodiment, a frequency band of 57 GHz to 66 GHz that is reflected as a high-frequency signal by an obstacle such as an indoor wall or furniture and does not transmit to the outside is assumed.

[First embodiment]
FIG. 2 is a functional block diagram showing configurations of the wireless AP and the smartphone MN according to the first embodiment of the present invention, and here, configurations unnecessary for the description of the present invention are omitted.

  In the wireless AP, the wireless LAN interface 101 transmits and receives wireless LAN signals using the wireless LAN antenna ATa1. The communication control unit 102 encrypts the wireless signal transmitted from the wireless LAN interface 101 and decrypts the wireless signal received by the wireless LAN interface 101. The beam sweep control unit 103 sweeps the beam direction of the directional antenna ATa2. The modulation / demodulation unit 104 modulates a signal transmitted from the directional antenna ATa2 into a high frequency signal, and demodulates the high frequency signal received by the directional antenna ATa2.

  In control unit 105, beacon transmission unit 105a transmits a high-frequency beacon while beam sweeping from directional antenna ATa2. The connection request reception unit 105b receives a connection request transmitted from the smartphone MN that has received the high frequency beacon. The directional communication path establishment unit 105c establishes a directional temporary communication path in a high frequency band with the smartphone MN by responding to the connection request with a high frequency signal from the directional antenna ATa2.

  The wireless LAN setting unit 105d performs wireless LAN setting on the smartphone MN using the directional temporary communication path. The wireless LAN establishment unit 105e establishes a wireless LAN communication path with the smartphone MN. The storage unit 106 stores setting information 106a for establishing the directional temporary communication path and setting information 106b for establishing the wireless LAN communication path.

  In the smartphone MN, the wireless LAN interface 201 transmits and receives wireless LAN signals using the wireless LAN antenna ATb1. The communication control unit 202 encrypts or decrypts a radio signal transmitted and received by the wireless LAN interface 201. The modulation / demodulation unit 204 modulates or demodulates a signal transmitted / received by the directional antenna ATb2.

  In the control unit 205, the temporary connection request unit 205a transmits a temporary connection request to the wireless AP when the high-frequency beacon advertised by the wireless AP is received by the directional antenna ATb2. The directional communication path establishment unit 205b establishes a directional temporary communication path in the high frequency band in cooperation with the directional communication path establishment unit 105c of the wireless AP. The wireless LAN establishment unit 205c establishes a wireless LAN communication path in cooperation with the wireless LAN establishment unit 105e of the wireless AP. In the storage unit 206, setting information 206a for establishing the directional temporary communication path and setting information 206b for establishing the wireless LAN communication path are registered by the wireless AP.

  FIG. 3 is a sequence flow showing the operation of the first embodiment of the present invention. At time t1, the sequence is directed after the beacon transmitted from the beacon transmission unit 105a of the wireless AP is subjected to high frequency modulation by the modulation / demodulation unit 104. Is transmitted in a predetermined beam direction from the directional antenna ATa2. Since the high-frequency beacon has high straightness, the high-frequency beacon is reflected by obstacles A and B such as walls, stays indoors, and does not propagate to the outside. Therefore, the outdoor smartphone MNx cannot receive the high-frequency beacon.

  If the wireless AP cannot receive a connection request for the high frequency beacon, the beam sweep control unit 103 electrically changes the beam direction of the directional antenna ATa2 at time t2. At time t3, the high frequency beacon is broadcast in the changed beam direction. When the high-frequency beacon is received by the smartphone MN at time t4, at time t5, a temporary connection request is transmitted from the temporary connection request unit 205a of the smartphone MN through the wireless LAN antenna ATb1. In this temporary connection request, the SSID advertised by the beacon can be described. In the present embodiment, all signals transmitted from the smartphone MN to the wireless AP are wireless signals in the wireless LAN frequency band.

  In the wireless AP, when the temporary connection request is received by the connection request receiving unit 105b, a temporary connection response that has been subjected to high frequency modulation by the modulation / demodulation unit 104 is transmitted from the directional antenna ATa2 at time t6. At time t7, the directional communication path establishment unit 105c of the wireless AP and the directional communication path establishment unit 205b of the smartphone MN cooperate to establish a high-frequency band directivity temporary communication path therebetween.

  At time t8, the wireless LAN setting information is requested from the smartphone MN to the wireless AP by the wireless LAN antenna ATb1. At time t9, the wireless LAN setting unit 105d of the wireless AP returns wireless LAN setting information to the smartphone MN using the directional temporary communication path. In the wireless LAN setting information, a pair of SSID and password is described.

  At time t10, the terminal ID of the smartphone MN is registered in the wireless AP. At time t11, the wireless LAN setting information 206b is registered in the storage unit 206 of the smartphone MN. At time t12, a wireless LAN connection is requested from the smartphone MN to the wireless AP using the wireless LAN setting information. At time t13, the wireless AP verifies its validity based on whether or not the wireless LAN connection request source ID is already registered. If it is already registered, it is recognized as a regular smartphone MN, and at time t14, the wireless LAN connection response is modulated with high frequency and returned.

  At time t15, the wireless LAN establishing unit 105e of the wireless AP and the wireless LAN establishing unit 205c of the smartphone MN cooperate to establish a wireless LAN communication path between them. At time t16, omnidirectional encrypted wireless LAN communication using the SSID and password is performed on the wireless LAN communication path.

  According to the present embodiment, since the beacon and response message broadcast from the wireless AP are modulated and transmitted to a high-frequency signal with high straightness, they are reflected on their surfaces without passing through the side walls and obstacles. Stay indoors. Therefore, it becomes difficult for a device to be set outdoors to intercept a beacon or a message, and it is possible to prevent these devices to be set from performing wireless LAN setting against the intention of the wireless LAN setter.

  Furthermore, according to the present embodiment, since the wireless AP transmits a beacon or the like of a high-frequency signal while sweeping the beam direction from the directional antenna, the smartphone MN transmits a high-directional high-frequency signal relative to the wireless AP. Reception is easy regardless of the positional relationship.

[Second Embodiment]
FIG. 4 is a functional block diagram showing configurations of the wireless AP and the smartphone MN according to the second embodiment of the present invention, and the same or equivalent parts are denoted by the same reference symbols. This embodiment is characterized in that the beam sweep control unit 203 is provided in the smartphone MN.

  FIG. 5 is a sequence flow showing the operation of the second embodiment of the present invention. At time t31, a radio frequency beacon is broadcast from the beacon transmission unit 105a of the wireless AP. At time t32, in the smartphone MN, the direction of the directional antenna ATb2 is electrically swept by the beam sweep control unit 203, and the beam reception direction is changed.

  In the wireless AP, if a connection request is not detected for the high frequency beacon, the direction of the directional antenna ATa2 is electrically changed at time t33 to change the beam direction of the high frequency beacon. At time t34, the high-frequency beacon is broadcast again, and when the high-frequency beacon is received by the smartphone MN at time t35, the beam direction of the directional antenna ATb2 at the smartphone MN is fixed at the current position at time t36. At time t37, a high-frequency modulated temporary connection request is transmitted from the directional antenna ATb2 of the smartphone MN to the wireless AP. In this embodiment, in principle, a radio signal in a high frequency band is also used for transmission from the smartphone MN to the wireless AP.

  In the wireless AP, when the temporary connection request is received, the beam direction of the directional antenna is fixed at the current position at time t38. At time t39, the provisional connection response subjected to high frequency modulation is transmitted from the directional antenna ATa2. At time t40, a high-frequency directional temporary communication path is established between the wireless AP and the smartphone MN. At time t41, wireless LAN setting information is requested from the smartphone MN to the wireless AP using the directional temporary communication path. At time t42, wireless LAN setting information is returned from the wireless AP to the smartphone MN using a directional temporary communication path. In the wireless LAN setting information, the SSID and password for this connection are described.

  At time t43, the terminal ID of the smartphone MN is registered in the wireless AP. At time t44, the wireless LAN setting information 206b is registered in the storage unit 206 of the smartphone MN. At time t45, a wireless LAN connection is requested from the smartphone MN to the wireless AP using the wireless LAN setting information. The wireless AP is verified based on whether or not the wireless LAN connection request source ID is already registered at time t46. If it is already registered, it is recognized as a legitimate terminal, and a wireless LAN connection response is returned at time t47. At time t48, a wireless LAN communication path is established between the wireless AP 1 and the smartphone MN. At time t49, omnidirectional encrypted wireless LAN communication using the SSID and password is performed on the wireless LAN communication path.

  According to this embodiment, since the smartphone MN receives a beacon of a high-frequency signal while sweeping the beam direction of the directional antenna, the high-frequency beacon with high directivity is irrespective of the relative positional relationship with the wireless AP. Furthermore, it becomes easy to receive.

[Third embodiment]
FIG. 6 is a functional block diagram showing configurations of the wireless AP and the smartphone MN according to the third embodiment of the present invention, and the same or equivalent parts are denoted by the same reference numerals. In this embodiment, the smartphone MN detects a movement of the own terminal after the beacon is received, a movement detection unit 205d that detects the arrival direction of the beacon based on the movement history of the own terminal, It is characterized in that it includes a beam direction determining unit 205f that directs the beam direction of its own directional antenna ATb2 to the estimated arrival direction.

  FIG. 7 is a sequence flow showing the operation of the third embodiment of the present invention. At time t61, a radio frequency beacon is broadcast from the beacon transmission unit 105a of the wireless AP. At time t62, in the smartphone MN, the direction of the directional antenna ATb2 is electrically swept by the beam sweep control unit 203, and the beam reception direction is changed.

  In the wireless AP, if a connection request is not detected for the high frequency beacon, the direction of the directional antenna ATa2 is electrically changed at time t63 to change the beam direction of the high frequency beacon. At time t64, the high frequency beacon is broadcast again. In the smartphone MN, when the high-frequency beacon is received at time t65, the movement direction and movement amount of the own terminal are detected by, for example, the movement detection unit 205d incorporating the gyro sensor, and tracking of the own terminal is started at time t66. Is done.

  At time t67, the relative positional relationship between the reception position of the beacon at time t65 and the current position is estimated based on the tracking result, and the arrival direction of the beacon is estimated based on the position estimation result. The At time t68, based on the estimation result, the beam direction of the directional antenna ATb2 is changed to the arrival direction of the beacon.

  At time t69, a high-frequency modulated temporary connection request is transmitted from the directional antenna ATb2 of the smartphone MN to the wireless AP. In this embodiment, a radio signal in a high frequency band is used in principle for transmission from the smartphone MN to the wireless AP.

  In the wireless AP, when the temporary connection request is received, the beam direction of the directional antenna is fixed at the current position at time t70. At time t71, a temporary connection response that has been subjected to high-frequency modulation is transmitted from the directional antenna ATa2. At time t72, a directional temporary communication path in a high frequency band is established between the wireless AP and the smartphone MN. At time t73, wireless LAN setting information is requested from the smartphone MN to the wireless AP using the directional temporary communication path.

  Note that even if a predetermined standby time has elapsed since the establishment of the directional temporary communication path at time t72, if the request for wireless LAN setting information from the smartphone MN is not detected, the wireless AP moves the smartphone MN. The beam direction of the directional antenna ATa2 is determined to be out of the beam range, and the beam direction of the directional antenna ATa2 is determined in advance (for example, sweeping within the range of ± 60 ° around the current beam direction in 30 ° increments, or the directional antenna When the directivity angle of can be changed from a minimum of 30 ° to a maximum of 150 °, the request signal is searched while sweeping in 30 ° increments within a range of a minimum of 30 ° to a maximum of 150 °.

  At time t74, wireless LAN setting information is returned from the wireless AP to the smartphone MN using a directional temporary communication path. In the wireless LAN setting information, the SSID and password for this connection are described.

  At time t75, the terminal ID of the smartphone MN is registered in the wireless AP. At time t76, the wireless LAN setting information 206b is registered in the storage unit 206 of the smartphone MN. At time t77, the tracking, position estimation, and antenna orientation control are completed.

  At time t78, a wireless LAN connection is requested from the smartphone MN to the wireless AP 1 using the wireless LAN setting information. The wireless AP is verified based on whether or not the wireless LAN connection request source ID is already registered at time t79. If it is already registered, it is recognized as a legitimate terminal, and a wireless LAN connection response is returned at time t80. At time t81, a wireless LAN communication path is established between the wireless AP 1 and the smartphone MN. At time t82, omnidirectional encrypted wireless LAN communication using the SSID and password is performed on the wireless LAN communication path.

  According to the present embodiment, the smartphone MN estimates the arrival direction of the beacon based on its own movement history after being able to receive the beacon, and sets the beam direction of the directional antenna in the direction. The smartphone MN can establish a high directivity high-frequency path with the wireless AP while being a mobile terminal.

  101, 201: Wireless LAN interface, 102, 202 ... Communication control unit, 103, 203 ... Beam sweep control unit, 104, 204 ... Modulation / demodulation unit, 105, 205 ... Control unit, 105a ... Beacon transmission unit, 105b ... Connection Request accepting unit, 105c ... Directional communication path establishment unit, 105d ... Wireless LAN setting unit, 105e ... Wireless LAN establishment unit, 106, 206 ... Storage unit, 106b ... Setting information, 205a ... Temporary connection request unit, 205b ... Directionality Communication path establishment unit, 205c ... Wireless LAN establishment unit, ATa1, ATb1 ... Wireless LAN antenna, ATa2, ATb2 ... Directional antenna

Claims (11)

In a wireless LAN setting device that performs wireless LAN settings for a wireless LAN target device,
A directional antenna that transmits and receives high-frequency signals;
Beacon transmission means for transmitting a high frequency modulated beacon from the directional antenna;
A connection request receiving means for receiving a temporary connection request for the beacon from the set device;
Directional communication path establishing means for establishing a directional temporary communication path in a high frequency band with the set target device in response to the temporary connection request with a high frequency signal from a directional antenna;
A wireless LAN setting device comprising: a wireless LAN setting unit configured to perform wireless LAN setting for the device to be set using the directional temporary communication path. Beam sweep control means for sweeping the beam direction of the directional antenna,
2. The wireless LAN setting device according to claim 1, wherein the beacon transmitting unit transmits a beacon modulated with a high frequency while performing beam sweep from the directional antenna.   The wireless LAN setting device according to claim 1 or 2, wherein the signal received by the wireless LAN setting device from the device to be set is a wireless LAN frequency band.   4. The wireless LAN setting device according to claim 1, wherein a response signal transmitted from the wireless LAN setting device to the device to be set is a high frequency band.   5. The wireless LAN setting device according to claim 1, wherein the beam sweep control means transmits a beacon while changing a beam direction at a predetermined period.   The beam sweep control unit stops the beam sweep when a temporary connection request is received by the connection request reception unit, and then receives a signal to be received from the set terminal within a predetermined waiting time, 3. The wireless LAN setting device according to claim 2, wherein the beam sweep is resumed.   7. The wireless LAN according to claim 6, wherein a range of the resumed beam sweep is within a predetermined range centered on a beam direction when a temporary connection request is received by the connection request accepting unit. Setting device.   7. The wireless LAN setting device according to claim 6, wherein the restarted beam sweep range is within a range of all transmission angles that can be set by a directional antenna. In the wireless LAN device to be set up by the wireless LAN setting device,
A directional antenna,
When a high-frequency beacon advertised by a wireless LAN setting device is received by the directional antenna, temporary connection request means for transmitting a temporary connection request to the wireless LAN setting device;
Directional communication path establishment means for establishing a directional temporary communication path in a high frequency band with the setting device based on a response to the temporary connection request;
A wireless LAN set device, comprising: a wireless LAN setting unit configured to set a wireless LAN based on wireless LAN setting information transmitted from the setting device using the directional temporary communication path.   The wireless LAN setup apparatus according to claim 9, further comprising beam sweep control means for sweeping a beam direction of the directional antenna. Means for detecting movement of the terminal after the beacon is received;
Direction estimation means for estimating the arrival direction of the beacon based on the movement history of the terminal itself;
Beam direction determining means for directing the beam direction of its own directional antenna toward the estimated direction of arrival;
The wireless LAN set-up apparatus according to claim 10, wherein the temporary connection request unit transmits the temporary connection request from the directional antenna in the changed direction.