WO2009146636A1 - Configuration method, system and device of wireless local area network - Google Patents

Abstract

A configuration method, a system and a device of a Wireless Local Area Network (WLAN) are disclosed. An authentication equipment accepts a configuration request from an application equipment, reduces transmission power to a first preset value, receives configuration information sent by a register and forwards the configuration information to the application equipment at the transmission power.

Description

 Wireless local area network configuration method, system and device

 The present application claims priority to Chinese Patent Application No. 200810085958.X, entitled "Configuration Method, System and Apparatus for Wireless Local Area Network", which is filed on June 6, 2008, the entire contents of which are incorporated by reference. In this application.

Technical field

 The present invention relates to the field of network technologies, and in particular, to a WLAN (Wireless Local Area Network) configuration method, system, and apparatus.

Background technique

 WPS (WiFi Protected Setup) is a WLAN security setup and configuration method developed by the WiFi Alliance. It designs the WLAN from the concept of lock and key and adds a secure and easy way to add applications to the WLAN. The basic idea is to use a registrar to manage the installation of APs (Access Points) and the addition of application devices, where the user can perform password entry, button touch and comparison display information.

 There are several methods of WPS, some of which are more secure, but require manual input of passwords and other user operations, and the setup process is cumbersome; some methods are easy to use, but the degree of security is not high, only in the WPS specification The method is an optional method.

Summary of the invention

 In view of this, the embodiments of the present invention provide a method, a system, and a device for configuring a wireless local area network, so as to solve the problem that the prior art button-type configuration method is not high in security and cumbersome to operate.

 The embodiment of the invention is implemented as follows:

 A wireless local area network WLAN configuration method includes:

 The authentication device receives the configuration request of the application device, and reduces the transmission power to the first preset value. The configuration information sent by the registrar is received and forwarded to the application device.

 The embodiment of the present invention also discloses another method for configuring a wireless local area network WLAN, including: the registrar accepts a configuration request of the application device, establishes a direct link with the application device, and reduces the transmission power to a third preset value;

 The registrar configures the application device through the direct link using the transmit power.

The embodiment of the invention further discloses a configuration system of a wireless local area network WLAN, comprising: an application device to be configured, an authentication device and a registrar; among them:

 The authentication device includes: a first processing unit, configured to receive a configuration request of the application device; and a first power adjustment unit, configured to reduce the transmit power when the first processing unit accepts a configuration request of the application device a first configuration unit, configured to receive configuration information sent by the registrar, and forward the configuration information to the application device by using the sending power.

 The present invention also provides another wireless local area network WLAN configuration system, including: an application device and a registrar to be configured, where:

 The registrar is configured to accept a configuration request of the application device, establish a direct link with the application device, reduce the transmit power to a third preset value, and use the transmit power to pass through the direct link. The application device sends configuration data.

 In addition, an embodiment of the present invention further provides an authentication apparatus, including:

 a first processing unit, configured to accept a configuration request of the application device;

 a first power adjustment unit, configured to: when the first processing unit accepts a configuration request of the application device, reduce the transmit power to a first preset value;

 The first configuration unit is configured to receive configuration information sent by the registrar, and forward the configuration information to the application device by using the sending power.

 At the same time, an embodiment of the present invention further provides an application device, including:

 a configuration request sending unit, configured to send a configuration request to the authentication device, where the configuration request message includes the identifier information of the application device and the information used to indicate the configuration mode of using the low power button;

 a second processing unit, configured to determine whether the authentication device accepts a configuration request;

 And a second power adjustment unit, configured to: when the second processing unit determines that the authentication device accepts the configuration request, reduce the transmit power to a second preset value.

 In addition, the present invention also discloses a registrar device, including:

 a fourth processing unit, configured to receive, after the authentication device receives the configuration request message of the application device, and send the identifier information of the application device, the identifier information, where the configuration request message includes the identifier information of the application device Information indicating the use of low power in-band communication configuration.

a second configuration unit, configured to: after the fourth processing unit receives the identifier information, establish a direct link with the application device, reduce the transmit power to a third preset value, and use the transmit power to pass the The direct link sends configuration data to the application device. It can be seen from the foregoing technical solutions that, in comparison with the prior art, the embodiment of the present invention reduces the transmission power of the authentication device or the registrar and the application device to be configured in the configuration process of the application device to be configured, so that the two can The communication can be performed within a short distance, so that the application device to be registered is registered to the illegal registrar, or the registrar accepts the illegal application device, and the information of the configuration process is difficult to be intercepted, thereby ensuring the security of the configuration process. In the meantime, the embodiment of the present invention does not require multiple interventions by the user, and only needs to provide some trigger information (for example, pressing a button) to implement automatic configuration and operation of the application device to be configured.

DRAWINGS

 1 is a flowchart of Embodiment 1 of a method for configuring a wireless local area network according to the present invention;

 2 is a flowchart of Embodiment 2 of a method for configuring a wireless local area network according to the present invention;

 3 is a flowchart of Embodiment 3 of a method for configuring a wireless local area network according to the present invention;

 4 is a flowchart of Embodiment 4 of a method for configuring a wireless local area network according to the present invention;

 5 is a flowchart of Embodiment 5 of a method for configuring a wireless local area network according to the present invention;

 FIG. 6 is a schematic structural diagram of Embodiment 1 of a wireless local area network WLAN configuration system according to the present invention; FIG. 7 is a schematic structural diagram of Embodiment 2 of a wireless local area network WLAN configuration system according to the present invention; FIG. 9 is a schematic structural diagram of Embodiment 4 of a wireless local area network WLAN configuration system according to the present invention; FIG. 10 is a schematic diagram of a registrar of Embodiment 5 of a wireless local area network WLAN according to the present invention; Schematic;

 FIG. 11 is a schematic structural diagram of an application device in Embodiment 6 of a wireless local area network WLAN configuration system according to the present invention.

detailed description

 An 802.11-based WLAN has two networking modes. One is a WLAN with an AP. In this network, messages between all application devices are forwarded through the AP, and the other is a point-to-point networking mode. All the application devices in the network are in equal status, and communication messages between any two application devices are directly sent to the other party.

 WPS is mainly for the networking mode with APs, but because of the independence of the registrar concept, some methods can actually be used in the point-to-point networking mode.

Since 802.11 itself supports power adjustment, for example, when an AP communicates with different application devices, Depending on the proximity of the application device to the AP or different environmental conditions, different power is used to save power. Therefore, it is technically feasible to reduce the function of the Registrar and the application device during configuration.

 The Registrar can be independent of the application device or it can be set in the application device.

 The application device is configured to join the application device to a network. The network may be an AP network or an AD HOC network without an AP. Therefore, the AP in this document can be regarded as an authentication device. This authentication device is an AP in the WLAN with an AP, and is an application device in the AD HOC network.

 Please refer to FIG. 1 , which is a flowchart of Embodiment 1 of a method for configuring a wireless local area network according to the present invention. In this embodiment, the registrar is independent of the application device, and the AP transmits the power when the application device and the registrar enter the to-be-configured state and the configured state, respectively.

 The specific process is as follows:

 Step S101: The application device periodically sends a Probe request, and carries information configured by using a button mode in the Probe request message. This message is called a button configuration request message. Of course, another independent message can also be defined as a configuration request message. The existing 802.11 protocol defines a Probe message for detecting network information by an application device and can extend the content of the request. The WPS protocol extends an information in the Probe message to indicate the request configuration and configuration method.

 The operation of the application device to be configured to send the configuration request message may be triggered by a trigger event provided by the user. For example, the trigger can be completed through a configuration button set on the to-be-configured application device, and the configuration request message is sent when the configuration button is pressed, and a software button or other trigger mode can also be used. The device to be configured may also not be configured with the configuration button. After the device is powered on, it may determine that the environment meets certain conditions and trigger the operation of sending the message. For example, the device finds the WLAN, and the device has not been configured under the WLAN. .

 In this embodiment, the application device to be configured is provided with a configuration button, and when the configuration button is pressed, a Probe request with information requesting to configure the device according to the button is periodically sent.

 The configuration request message also contains the ID information of the application device.

 Step S102: When receiving the Probe request, the AP sends the related information of the device requested to be configured, for example, the ID information of the device to the registrar, and implements the UPnP protocol in the current WPS method.

Thereafter, the AP determines whether the registrar is in the configuration state, and when the user determines to use a registrar for configuration, pressing the registrar's configuration button, the registrar sends information including the identity of the registrar to the The AP, when the AP receives the information, knows that the registrar is in the configuration state. That is, before receiving the information sent by the registrar, the AP considers that the registrar is not in the configuration state, and proceeds to step S103. When receiving the information sent by the registrar, the AP considers that the registrar is in the configured state, and then proceeds to step S104. . Steps S101, S102, and S103 may be repeated before proceeding to step S104.

 Step S103: Send feedback to the to-be-configured application device to indicate that the probe response cannot be configured.

 Step S104: Reduce the transmission power that is communicated with the application device to be configured to a first preset value. This step can also be performed after the step S107.

 The first preset value can be adjusted as needed. In principle, the closer the application device to be configured is, the better, for example, the application device to be configured can receive the signal sent by the AP within 50 cm of the AP, thereby eliminating the signal. The danger of being eavesdropped.

 Since the AP also communicates with the Registrar, the AP needs to reduce power when communicating with the application to be configured.

 Step S105 - Step S107: The requesting of the probe is periodic. After receiving the message that the registrar enters the registrar state and reducing the transmission power, the AP sends a Probe response to the application to be configured when receiving the probe request again. In the response, indicate that configuration is possible. Since the AP reduces the power, the process of steps S105 to S107 may not be performed normally when the application device to be configured is not sufficiently close to the AP, thus allowing a period of time after the user presses the registrar button, for example, two minutes, step 105 The execution continues until the message of S107 is successfully received. If the above interaction process cannot be completed within the specified time, the configuration process automatically ends, and the registrar deletes the information about the received application device to be configured.

 Step S108: The application device to be configured performs an authentication process with the AP.

 Step S109: The registrar sends the configuration information of the application device to be configured to the application device to complete the configuration. The communication between the registrar and the application device is forwarded by the AP. The AP and the registrar use the established secure channel to transmit, and the AP and the application to be configured reduce the power and transmit at a short distance to ensure the security of the transmission. Sex.

 The authentication and configuration process for the application device belongs to the prior art and will not be described in detail herein.

In the above process, the application device and/or the AP to be configured prompts the user to set the application when appropriate. Be close to the AP. The application device to be configured may be prompted after the user presses the button of the configuration application device or after step S107, and the AP may prompt after the user presses the button on the AP.

 In the configuration process of the application device to be configured, the foregoing embodiment reduces the transmission power of the AP, so that the two can communicate in a short distance, and the registrar is prevented from accepting the illegal application device, and the configuration process information is It is difficult to be eavesdropped and the security of the configuration process is guaranteed. In the meantime, the embodiment of the present invention does not require multiple interventions by the user, and the user can perform automatic configuration and operation of the device to be configured by pressing the button.

 In another embodiment of the present invention, when the application device and the registrar enter the to-be-configured state and the configuration state respectively, both the AP and the application device reduce the transmission power. The security of the configuration process is further improved.

 The specific process is shown in FIG. 2. FIG. 2 is a flowchart of Embodiment 2 of a method for configuring a wireless local area network according to the present invention.

 Steps S201 to S207 are the same as steps S101 to S107 in the first embodiment.

 Step S208: The application device to be configured reduces the transmission power to a second preset value. The application device to be configured also reduces the power and subsequent interactions between the APs, further increasing the privacy of the configuration process.

 Step S209 - Step S210, performing an authentication and configuration process.

 In the above embodiment, the registrar is independent of the AP. In other embodiments, the registrar can also be set in the AP. In this case, the configuration process of the application device is similar to the above embodiment, and only the AP and the registrar are omitted. A step of. When the registrar is set to the AP, the AP can reduce the transmission power in a single operation instead of reducing the transmission power for the application to be configured. Even if the AP needs to communicate with other application devices, the communication process is only briefly interrupted.

 It should be noted that when the user configures the application device by using the registrar, it is generally performed separately. If there are multiple application devices requesting configuration at the same time, there may be an illegal application device attempting to enter the network. Therefore, in order to prevent the illegal application device from being legally registered, the number of application devices that are requested to be configured may be determined before the application device is configured, for example, after receiving the probe request of the application device, only when the number of the application device is 1. At the same time, the configuration is completed. If the number of application devices requested to be configured exceeds one, the process ends.

It can be seen that, in the configuration process of the application device to be configured, the sending power of the AP and/or the application device to be configured is reduced, so that the two can enter within a short distance. Line communication, thus effectively avoiding the registration of the application device to be registered to the illegal registrar, and the illegal registrar may serve another AP, or the registrar accepts the illegal application device, because the illegal application device or non-user AP is generally far from the user. Since the information of the configuration process is transmitted at a short distance under low power, it is difficult to be eavesdropped, and the security of the configuration process is ensured.

 At the same time, for the user, it only needs to provide a trigger event (for example, pressing a button), and the automatic configuration and processing of the device to be configured can be realized.

 FIG. 3 is a flowchart of Embodiment 3 of a method for configuring a wireless local area network according to the present invention.

 This embodiment refers to the existing outband configuration method, and replaces the outband channel with a reduced power WiFi channel to achieve the same security.

 The specific process includes the following steps:

 Step S301: After the application device is configured to discover the AP, send a Probe request.

 The Probe frame carries the device information (including the ID) of the to-be-configured application device, and the request information indicating that the device adopts an in-band low-power configuration.

 Step S302: The AP forwards the device information to the registrar.

 Step S303: The AP sends a response message to the application device to be configured.

 The response message carries parameter information of the AP, such as an SSID (Service Set Identifier) information of the AP. In this configuration method, the AP does not reject the configuration request of the application device at the beginning as in the first embodiment. In the original method, the reliability depends on the out-of-band interface connection process requiring user intervention, that is, the non-WiFi interface that can connect the registrar to the application device is considered to be a legitimate user to register a legitimate device, for example, the user connects the application with an Ethernet cable. Device and registrar. In the present invention, the security effect with the out-of-band channel mechanism is achieved by using WiFi low power ^ giant communication.

 Step S304: The application device to be configured performs preliminary two-way authentication with the AP, and simultaneously exchanges some information with the registrar.

 It should be noted that the embodiment of the present invention does not change this step. Therefore, the details of the process are not described herein. For detailed steps, refer to the WPS specification released by the WiFi Alliance.

 Step S305: The registrar sends a credential for the AP to authenticate the application device to be configured in the future.

Step S306: The AP reduces the transmission power of the communication with the application device to be configured to a first preset value. Step S307: The registrar sends the device credential and other configuration data to the application device, Configuration of paired application devices.

 The communication between the registrar and the application device is forwarded by the AP. The AP and the registrar use the established secure channel to transmit, and the AP and the application to be configured reduce the power and transmit at a short distance to ensure the security of the transmission. Sex, and because only legitimate users can bring the device closer to the AP so close, so this process is considered reliable. This improved approach is similar to the security philosophy on which the original out-of-band mechanism is based, but it does not require the user to wire or perform other out-of-band operations between the registrar and the application device, so it is more convenient to use.

 To further enhance the security of the configuration, the application device can reduce the transmission power of the AP after the initial authentication with the AP, and further increase the privacy of the subsequent configuration process. For the specific process, refer to FIG. 4, which is a configuration of the wireless local area network according to the present invention. Method flow chart of the fourth embodiment.

 Step S401 - step S404 is the same as step S301 - step S304 in the fourth embodiment.

 Step S405: The to-be-configured application device reduces its own power to a second preset value.

 Step S406: The registrar sends a credential for the AP to authenticate the application device to be configured in the future.

 Step S407: The AP reduces the transmission power to a first preset value.

 Step S408: The registrar sends the device's credentials and other configuration data to the application device, and completes configuration of the application device.

 The above step S408 may complete the final configuration of the application device by multiple messages, during which the application device will send back a response message, so it is meaningful for the application device to reduce the power.

 The operation of reducing the transmit power of the AP may also be performed after receiving the configuration request of the application device. The authentication process described in step S304/step S404 may be completed in the case of low-power short-range communication, further ensuring privacy. Next, the application device also reduces power and makes more sense.

 In addition, for ease of use, the application device or the AP instructs the user to bring the application device to be configured close to the AP while reducing power.

 The operation of reducing the transmission power of the AP and the operation of reducing the transmission power by the application device to be configured may be performed sequentially (the sequence may be arbitrary) or may be performed simultaneously.

 In the embodiment of the present invention, the power-down WiFi channel is used instead of the out-of-band channel to achieve the same security, and the out-of-band interface requirements for the registrar and the application device are eliminated.

It should be noted that the above steps are performed when the default registrar is in the configuration state, and of course The specified registrar enters the configuration state after receiving the trigger information, and the trigger information may be sent by the user by touching a configuration button set on the registrar, or may be input by other means.

 In all the above embodiments, the registrar is independent of the AP. In another embodiment, the registrar can also be set on the AP. When the registrar is set on the AP, it is actually equivalent to the application device to be directly interacted with the registrar. The specific configuration process of the data is similar to the above embodiment, and only the communication process between the AP and the registrar is omitted.

 For the case where the registrar is independent of the AP, the AP needs to communicate with the registrar, which means that if the reduced transmission power is for all devices, it may affect the communication between the AP and the registrar, such as communication. The link may be interrupted, which may make the configuration process impossible. Therefore, the operation of reducing the transmission power of the AP is performed only for the application device to be configured when the AP is separated from the registrar, and still performs the original transmission power for other devices.

 For the case where the registrar is set in the AP, the AP can reduce the sending power for all devices. Of course, it is also possible to reduce the transmission power only for the application device to be configured.

 As shown in FIG. 5, the configuration process of the application device is as shown in FIG. 5, and FIG. 5 is a flowchart of Embodiment 5 of a method for configuring a wireless local area network according to the present invention, which specifically includes the following steps. :

 Step S501: The application device to be configured sends a Probe request.

 The Probe frame carries the device information (including the ID) of the application to be configured, and the request information indicating that the device adopts the in-band low-power configuration, and of course, the information supporting the direct connection mode (this is the 802.11 protocol itself has been specified). of).

 Step S502: The AP forwards the device information to the registrar.

 Step S503: The AP sends a response message to the application device to be configured.

 Step S504: The application device to be configured performs preliminary two-way authentication with the AP, and simultaneously exchanges some information with the registrar.

 Step S505: The registrar sends a credential for the AP to authenticate the application device to be configured in the future.

Step S506: Because the device to be registered supports the direct connection, the registrar decides to transmit the configuration data to the application device in the direct connection manner, and thus initiates a direct connection establishment process with the application device to be configured. This step can also be performed after S507, S508. Step S507, the registrar automatically reduces the transmission power.

 Step S508: The application device to be configured reduces the transmission power.

 With the foregoing embodiment, it is not necessary to reduce the power of the application device to be configured, but the security effect is better after the power is reduced.

 Step S509: The registrar transmits configuration data to the application device by using a direct link. After the configuration data transmission is completed, the direct link is removed.

 Since this process is transmitted over short distances, it has the security of an out-of-band mechanism.

 It should be noted that the operations of reducing the transmission power by the registrar and the application to be configured may be performed in any order or simultaneously. The user and the registrar may be prompted to be approached while the registrar and the application to be configured are reducing the transmission power or before establishing the direct connection.

 In addition, in this embodiment, the default registrar is in the configuration state, and of course, the registrar can also enter the configuration state after receiving the trigger information, and the trigger information may be sent by the user by touching a configuration button set on the registrar. It can be entered in other ways.

 This embodiment is an improvement based on the original out-of-band mechanism configuration method. In fact, the direct connection method can also be used on the basis of the button configuration method. Referring to FIG. 1 , in step S101, S105, the application device to be configured carries information supporting direct connection in the probe request message; step S104 is removed, that is, the AP does not reduce power; after step S108, the application device to be configured initiates direct to the registrar. Connected, or after step S108, the AP informs the registrar to complete the authentication, and then the registrar initiates a direct connection to the application device to be configured; before or after the two parties establish a direct connection, both parties reduce the transmission power, wherein the registrar reduces power, which is necessary. The application device to be configured may not reduce the power; finally, the registrar transmits configuration data to the to-be-configured application device through the direct connection path; after the configuration is completed, the registrar and the to-be-configured application device tear down the direct link.

 The advantage of using the direct link to transmit configuration data is that since the AP does not have to reduce power, it does not affect the communication between the AP and any other device. For the registrar, the registrar can only accept registration of one device at any time. Therefore, the registrar can reduce power without problems affecting communication with other devices. The direct link established between the registrar and the application to be configured is similar to the outband interface directly connected to the registrar and the application device in the outband mechanism, and because the registrar is close to the application to be configured after reducing the transmission power. Distance communication, similar to NFC, has the same security as an out-of-band interface.

The embodiment of the present invention does not limit the direct connection mode, and may be used when the AP supports direct connection. The 802.11e direct connection establishment method establishes a direct connection. When the AP does not support direct connection, the tunnel-type direct connection establishment method described by 802.11z can be used to establish a direct connection through the AP transparent transmission message.

 A normal direct connection needs to consider establishing a security key between two directly connected devices, but a security key is not required in the embodiment of the present invention because direct communication between the registrar and the application device is at a low power close range. Underneath, it is safe in itself.

 The above embodiment describes a method of configuring an application device in a wireless local area network with an AP. For a wireless local area network without an AP, that is, the AD HOC network mentioned in the 802.11 protocol, each of the devices has the same status, and communication between any two devices is directly performed. Even so, the establishment of an AD HOC network still requires an initiator. Each device joins such a network and needs to authenticate each other with all other devices on the network. When the WPS method is applied to such a network, in fact, a registrar can be set to serve all devices, and the device that initiates the network establishment can assume the role of the AP, or each device can have its own registrar, each Devices all play the role of an AP. Therefore, the above method can be applied to the AD HOC network to configure the device to be configured by the change of the single package. For example, for the method shown in FIG. 1 to FIG. 4, when the registrar is on the AP, the flowchart is obtained, and the flowchart is obtained. The process of configuring the application device to request configuration from the AP/Registrar complex is the same as one application device requesting another device configuration.

 Corresponding to some embodiments of the foregoing wireless local area network configuration method, the present invention also provides a wireless local area network WLAN configuration system.

 The configuration system includes an AP, an application device to be configured, and a registrar configured to configure the application device, and the AP and/or the application device reduce the transmission power when determining that the application device and the registrar respectively enter a to-be-configured state and a configuration state. .

 The following is explained by several specific embodiments.

 Please refer to FIG. 6, which is a schematic structural diagram of Embodiment 1 of a wireless local area network WLAN configuration system according to the present invention.

 A wireless local area network WLAN configuration system includes: an authentication device 100, an application device 200 to be configured, and a registrar 300 for configuring the application device 200.

 The authentication device 100 includes: a first processing unit 111, a first power adjustment unit 112, and a first configuration unit 113.

The first processing unit 111 is configured to accept a configuration request of the application device 200. The first power adjustment unit 112 is configured to reduce the transmission power to a first preset value when the first processing unit 111 accepts the configuration request of the application device 200.

 The first configuration unit 113 is configured to receive configuration information sent by the registrar 300, and forward the configuration information to the application device 200 by using the sending power.

 The manner in which the first processing unit 111 accepts the configuration request of the application device 200 includes the following:

 1. When the configuration button 211 is set on the application device 200, when the configuration button 211 is pressed, the application device 200 sends a configuration request message, where the request message includes the identification information of the application device and is used for The information indicating the configuration mode of the low power button is used; the authentication device 100 sends the identification information of the application device 200 to the registrar 300, and after receiving the identification information, the registrar 300 returns an acknowledgment message; After receiving the confirmation message, the device 100 sends a response message to the application device 200 to accept the configuration request of the application device 200.

 The manner in which the application device 200 sends the configuration request message may be periodic. A feasible manner is that the message is set to be sent in the Probe frame.

 2. The application device 200 sends a configuration request message, where the request message includes the application device.

The identification information of 200 and the information indicating the use of the low-power in-band communication configuration mode; the authentication device 100 receives the configuration request message, and sends a response message to the application device 200 to accept the configuration request.

 For the specific process of the foregoing method, refer to the description of the foregoing method part, and details are not described herein again.

 In the configuration process of the application device to be configured, the authentication device reduces the transmission power, so that the authentication device and the application device to be configured can communicate within a short distance, and the information of the configuration process is difficult to be eavesdropped. The security of the configuration process. In the meantime, the embodiment of the present invention does not require multiple interventions by the user, and the user can perform automatic configuration and operation of the application device by pressing the button.

 In another embodiment, both the application device 200 and the authentication device 100 reduce the transmission power. Referring to FIG. 7, FIG. 7 is a schematic structural diagram of Embodiment 2 of a wireless local area network WLAN configuration system according to the present invention.

 As shown, the application device 200 includes: a configuration request sending unit 211, a second processing unit 212, and a second power adjusting unit 213.

among them: The configuration request sending unit 211 is configured to send a configuration request to the authentication device 100, where the configuration request message includes identifier information of the application device 100 and information indicating that the low power button configuration mode is used.

 The second processing unit 212 is configured to determine whether the authentication device 100 accepts a configuration request. That is, it is determined whether a response message sent by the authentication device 100 indicating acceptance of the configuration request is received.

 The second power adjustment unit 213 is configured to reduce the transmission power to a second preset value when the second processing unit 212 determines that the authentication device 100 accepts the configuration request.

 The first preset value and the second preset value may be adjusted according to actual conditions of the network, and the values may be equal or not equal.

 The registrar 300 may be provided on the authentication device 100 or may be independent of the authentication device 100. When the registrar 300 is independent of the authentication device 100, the first processing unit 113 reduces the transmission power. If it is for all devices, there may be a problem because the authentication device 100 is not only related to the application device to be configured. The communication 200 also needs to communicate with the registrar 300. If the reduced transmission power is for all devices (including the registrar 300), the communication between the authentication device 100 and the registrar 300 may be interrupted, resulting in a configuration process. Unable to proceed. Therefore, it is recommended that the operation of reducing the transmission power is performed only for the application device to be configured, and for other devices, the original transmission power is still performed.

 When the registrar 300 is disposed on the authentication device 100, since the communication distance between the registrar 300 and the authentication device 100 is short, the operation of reducing the transmission power by the first processing unit 113 may be for all devices (including to be configured). The application device 200 and other devices may be performed only for the application device 200 to be configured. Based on the ease of operation, it is generally carried out in a manner that reduces the transmission power for all devices.

 In the configuration process of the application device to be configured, the authentication device reduces the transmission power, so that the authentication device and the application device to be configured can communicate within a short distance, and the information of the configuration process is difficult to be eavesdropped. The security of the configuration process.

 In another embodiment, in the third embodiment of the present invention as shown in FIG. 8, the application device 200 and the registrar 300 to be configured have a direct connection function.

The registrar 300 accepts the configuration request of the application device 200, establishes a direct link with the application device 200, reduces the transmission power to a third preset value, and uses the transmission power to pass the direct link. The path sends configuration data to the application device 200.

 The registrar 300 includes: a fourth processing unit 311 and a second configuration unit 312.

 among them:

 The fourth processing unit 311 is configured to: after the authentication device 100 receives the configuration request message of the application device 200, and send the identifier information of the application device 200, receive the identifier information; The identification information of the application device 200 and the information indicating the use of the low power in-band communication configuration mode are included.

 The second configuration unit 312 is configured to establish a direct link with the application device 200 after the fourth processing unit 311 receives the identifier information, and reduce the transmission power to a third preset value, by using the Transmit power transmits configuration data to the application device 200 over the direct link.

 In the foregoing embodiment, during the configuration process of the application device to be configured, the registrar reduces the transmission power, so that the registrar and the application device to be configured can communicate under a short distance, and the configuration process information is very Difficult to be eavesdropped, ensuring the security of the configuration process.

 In order to further improve security, both the application device 200 and the registrar 300 reduce the transmission power, as shown in FIG. 9, which is a schematic structural diagram of Embodiment 4 of the present invention.

 Based on the foregoing third embodiment, the application device 200 includes:

 The fifth processing unit 214 is configured to reduce the transmit power to the fourth preset value after the direct link is established.

 The third preset value and the fourth preset value may be adjusted according to actual operating conditions of the network.

 The embodiment of the present invention does not limit the direct connection mode, and may be used when the AP supports direct connection.

The 802.11e direct connection establishment method establishes a direct connection. When the AP does not support direct connection, the tunnel-type direct connection establishment method described by 802.11z can be used to establish a direct connection through the AP transparent transmission data packet.

 It should be noted that the normal direct connection needs to consider establishing a security key between the two directly connected devices, but the security key is not needed in the embodiment of the present invention because the direct communication between the registrar and the application device It is safe to operate at low power and close range.

 Please refer to FIG. 10, which is a schematic structural diagram of a registrar according to Embodiment 5 of the present invention.

On the basis of the third embodiment or the fourth embodiment, the registrar 300 may further include: a first indication unit 313, configured to: after the second configuration unit 312 reduces the transmission power or decreases the transmission power, the indication The user approaches the registrar 300 to the application device 200. Please refer to FIG. 11, which is a schematic structural diagram of an application device according to Embodiment 6 of the present invention.

 On the basis of the foregoing embodiment 4 or the fifth embodiment, the application device 200 further includes: a second indication unit 215, configured to indicate the user after the fifth processing unit 214 reduces the transmission power or decreases the transmission power. The application device 200 is brought close to the registrar 300.

 In all the above embodiments, the authentication device 100 is an AP in a WLAN with an AP.

Any application device in the AD HOC network.

 The authentication device, the application device, and the registrar in the above system embodiments are all within the scope of the claimed invention.

 Those skilled in the art will recognize that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

 The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

 The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded to the broadest scope of the principles and novel features disclosed herein.

Claims

Rights request

 A WLAN configuration method for a wireless local area network, characterized in that:

 The authentication device accepts the configuration request of the application device, and reduces the transmission power to the first preset value. The configuration information sent by the registrar is received, and the configuration information is forwarded to the application device by using the sending power.

 2. The method of claim 1, further comprising:

 After confirming that the authentication device accepts the configuration request, the application device reduces its own transmit power to a second preset value.

 3. The method according to claim 1, wherein the accepting the device to accept the application device configuration request is implemented by the following steps:

 Receiving, by the authentication device, a configuration request message sent by the application device, where the request message includes identifier information of the application device and information for indicating a mode of using a low power button;

 The authentication device sends the identification information of the application device to the registrar;

 Receiving, by the authentication device, an acknowledgement message of the registrar;

 Sending a response message to the application device indicates accepting a configuration request from the application device.

 4. The method according to claim 1, wherein the accepting the device configuration request by the authentication device is implemented by the following steps:

 Receiving, by the authentication device, a configuration request message sent by the application device, where the request message includes identifier information of the application device and information for indicating a configuration mode of using a low-power in-band communication; the authentication device is configured to the application device Sending a response message indicates accepting the configuration request.

The method of any of claims 1-4, wherein the registrar is located in a physical device of the authentication device.

 The method of claim 5, wherein the determining, by the authentication device, the transmit power to the first preset value is: reducing the transmit power of all devices or only the application device to be configured. The first preset value.

 7. The method of any of claims 1-4, wherein the registrar is located in a physical device that is separate from the authentication device.

The method according to claim 7, wherein the determining, by the authentication device, the transmit power to the first preset value is: reducing the transmit power of the application device to a first preset value.

A WLAN configuration method, comprising: a registrar accepting a configuration request of an application device, establishing a direct link with the application device, and reducing the transmission power to a third preset value;

 The registrar configures the application device through the direct link using the transmit power.

 The method according to claim 9, wherein before the configuring, the method further comprises: the application device reducing the transmission power to a fourth preset value when determining that the registrar accepts the configuration request.

The method according to claim 9 or 10, wherein the registrar accepting the configuration request of the application device is implemented by the following steps:

 After the authentication device receives the configuration request message of the application device, and sends the identification information of the application device, the registrar receives the identification information to indicate that the configuration request of the application device is accepted;

 The configuration request message includes identification information of the application device and information indicating a low power in-band communication configuration mode.

 The method according to claim 9 or 10, wherein the registrar configuring the application device comprises:

 The registrar sends configuration information of the application device to the application device through a direct link.

 A WLAN configuration system, comprising: an application device to be configured, an authentication device, and a registrar;

 among them:

 The authentication device includes:

 a first processing unit, configured to accept a configuration request of the application device;

 a first power adjustment unit, configured to: when the first processing unit accepts a configuration request of the application device, reduce the transmit power to a first preset value;

 The first configuration unit is configured to receive configuration information sent by the registrar, and forward the configuration information to the application device by using the sending power.

The system of claim 13, wherein the application device comprises: a configuration request sending unit, configured to send a configuration request to the authentication device, where the configuration request message includes identifier information of the application device and Information indicating the use of low power button configuration; a second processing unit, configured to determine whether the authentication device accepts a configuration request;

 And a second power adjustment unit, configured to: when the second processing unit determines that the authentication device accepts the configuration request, reduce the transmit power to a second preset value.

 15. The system of claim 13 wherein the first processing unit reduces transmit power for all devices.

 The system according to claim 13, wherein the reducing the transmission power of the first processing unit is performed for the application device to be configured.

 A WLAN configuration system, comprising: an application device and a registrar to be configured, wherein:

 The registrar is configured to accept a configuration request of the application device, establish a direct link with the application device, reduce the transmit power to a third preset value, and use the transmit power to pass through the direct link. The application device sends configuration data.

 18. The system of claim 17, wherein the system further comprises an authentication device, the registrar comprising:

 a fourth processing unit, configured to: after receiving, by the authentication device, the configuration request message of the application device, and sending the identifier information of the application device, receiving the identifier information, where the configuration request message includes the application device Identification information and information indicating the use of low power in-band communication configuration.

 a second configuration unit, configured to: after the fourth processing unit receives the identifier information, establish a direct link with the application device, reduce the transmit power to a third preset value, and use the transmit power to pass the The direct link sends configuration data to the application device.

 The system of claim 18, wherein the application device comprises: a fifth processing unit, configured to reduce the transmit power to a fourth preset value after the direct link is established.

The system according to claim 18, wherein the registrar further comprises: a first indication unit, configured to: after the second configuration unit reduces the transmission power or reduce the transmission power, instruct the user to The registrar is close to the application device.

 The system of claim 19, wherein the application device further comprises: a second indication unit, configured to: after the fifth processing unit reduces the transmission power or reduce the transmission power, instruct the user to The application device is proximate to the registrar.

22. An authentication device, comprising: a first processing unit, configured to accept a configuration request of the application device;

 a first power adjustment unit, configured to: when the first processing unit accepts a configuration request of the application device, reduce the transmit power to a first preset value;

 The first configuration unit is configured to receive configuration information sent by the registrar, and forward the configuration information to the application device by using the sending power.

 23. An application device, comprising:

 a configuration request sending unit, configured to send a configuration request to the authentication device, where the configuration request message includes the identifier information of the application device and the information used to indicate the configuration mode of using the low power button;

 a second processing unit, configured to determine whether the authentication device accepts a configuration request;

 And a second power adjustment unit, configured to: when the second processing unit determines that the authentication device accepts the configuration request, reduce the transmit power to a second preset value.

 24. A registrar device, comprising:

 a fourth processing unit, configured to receive, after the authentication device receives the configuration request message of the application device, and send the identifier information of the application device, the identifier information, where the configuration request message includes the identifier information of the application device Information indicating the use of low power in-band communication configuration.

 a second configuration unit, configured to: after the fourth processing unit receives the identifier information, establish a direct link with the application device, reduce the transmit power to a third preset value, and use the transmit power to pass the The direct link sends configuration data to the application device.