WO2022174652A1 - Procédé et système de découverte automatique de configuration de réseau par un terminal intelligent - Google Patents

Procédé et système de découverte automatique de configuration de réseau par un terminal intelligent Download PDF

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Publication number
WO2022174652A1
WO2022174652A1 PCT/CN2021/135948 CN2021135948W WO2022174652A1 WO 2022174652 A1 WO2022174652 A1 WO 2022174652A1 CN 2021135948 W CN2021135948 W CN 2021135948W WO 2022174652 A1 WO2022174652 A1 WO 2022174652A1
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Prior art keywords
network
intelligent terminal
home gateway
temporary
terminal
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PCT/CN2021/135948
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English (en)
Chinese (zh)
Inventor
尹承稷
成国强
赵新宁
蔡庆
鲁杨军
阚阳硕
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天翼数字生活科技有限公司
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Publication of WO2022174652A1 publication Critical patent/WO2022174652A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to mobile communication technology, and more particularly, to a method and system for automatically discovering and distributing a network by an intelligent terminal based on the IEEE802.11 Wi-Fi standard protocol.
  • distributed network In recent years, with the advancement of national strategies such as broadband China and triple play, in the process of exploring smart home services, the problem of network configuration of smart terminals (referred to as “distribution network”) has become a pain point in the development of the industry. Pursuing the security and efficiency of the distribution network has become a technical improvement requirement for the network configuration of intelligent terminals.
  • the current mainstream intelligent terminal network configuration technical solutions in the industry include SmartConfig (multicast/broadcast), soft AP, and IEEE 802.11 protocol extension solutions. Each of these three methods has its own shortcomings.
  • the SmartConfig (multicast/broadcast) solution has a low success rate and slow speed due to the compatibility issues between mobile phones and routers, the instability of UDP, and the serial characteristics of the distribution network.
  • the soft AP solution requires users to switch to the AP hotspot of the network access device and manually enter the account password, which is complicated and slow.
  • the existing IEEE 802.11 protocol extension scheme is actively initiated by AP devices such as routers, and the network configuration information is directly added to the Probe request frame or Probe Response frame of Wi-Fi, and the distribution network information is transmitted through intermediate devices or direct broadcast.
  • the interaction process with the device lacks the device discovery process, the user authorization process, and the fixed encryption method, which has security risks. At the same time, because there is no device discovery process to be configured, there will be an error in the automatic network configuration of other devices.
  • the present invention provides a Wi-Fi standard protocol based on IEEE 802.11 and a temporary distribution network
  • the intelligent terminal of the hotspot automatically discovers the distribution network method.
  • the invention is based on the connection process of the Wi-Fi standard, and the intelligent device encapsulates the device information through the Vendor-Specific Information Element (VSIE) in the Probe Request frame to request the network configuration.
  • the home gateway uses the device information encapsulated in the Vendor-Specific Information Element (VSIE) in the received Probe Request frame to realize device discovery and terminal ecological certification.
  • the gateway uses the Probe Response frame to encapsulate the temporary interactive network SSID information through the Vendor-Specific Information Element (VSIE) and sends it to the smart terminal to establish a temporary connection between the smart terminal and the home gateway.
  • VSIE Vendor-Specific Information Element
  • the two parties After the smart terminal establishes a temporary connection with the home network, the two parties obtain the SSID and PASSWORD of the real network through encrypted interaction to realize automatic discovery and rapid network distribution of the smart terminal.
  • the entire intelligent terminal encrypted interaction to obtain the real network SSID and PASSWORD process through the device and the home gateway SPEKE negotiation algorithm to jointly generate the independent secret key encrypted network distribution information.
  • a method for quick connection of an intelligent terminal to a network based on the IEEE 802.11 protocol wherein the method includes:
  • the intelligent terminal encapsulates the terminal information in a Probe Request frame for transmission, and the terminal information includes ecological OUI and terminal identity information;
  • the home gateway determines, based on the ecological OUI encapsulated in the received Probe Request frame, whether the intelligent terminal belongs to the ecology that allows automatic discovery of fast network distribution;
  • the home gateway In response to receiving the authorization of the user, the home gateway opens the temporary distribution network hotspot AP, and encapsulates the temporary distribution information for the intelligent terminal to access the temporary network in a Probe Response frame and sends it to the intelligent terminal;
  • the intelligent terminal accesses the temporary network based on the temporary network configuration information encapsulated in the received Probe Response frame;
  • the home gateway initiates key negotiation with the intelligent terminal through the temporary network to obtain a negotiated key
  • the home gateway encrypts the network configuration information using the negotiated key, and sends it to the intelligent terminal, where the network configuration information includes the SSID and password of the Wi-Fi network of the home gateway;
  • the intelligent terminal decrypts the network configuration information using the negotiated key
  • the intelligent terminal uses the decrypted network distribution information to access the Wi-Fi network of the home gateway.
  • the intelligent terminal encapsulates the terminal information in a Probe Request frame through a manufacturer-specific information element VSIE, and the home gateway encapsulates the temporary network configuration information in a Probe Response through VSIE frame.
  • the method further includes:
  • the home gateway encapsulates the ecological OUI together with the temporary network distribution information in a Probe Response frame and sends it to the smart terminal;
  • the intelligent terminal filters the received Probe Response frame according to the OUI in the VSIE data.
  • the terminal information further includes one or more of the following information:
  • Terminal MAC address Terminal MAC address
  • the temporary network configuration information includes an SSID of the temporary network and a channel number where the temporary network is located.
  • the intelligent terminal accessing the temporary network based on the temporary network configuration information encapsulated in the received Probe Response frame further includes:
  • the intelligent terminal establishes a TCP connection with the home gateway.
  • the home gateway initiating key negotiation with the intelligent terminal through the temporary network further includes:
  • the home gateway and the intelligent terminal use the SPEKE negotiation algorithm to perform key negotiation.
  • a home networking system based on the IEEE 802.11 protocol wherein the system includes:
  • One or more intelligent terminals that communicate and interact with the home gateway via any one of the networking terminals, wherein:
  • the intelligent terminal encapsulates the terminal information in a Probe Request frame for transmission, and the terminal information includes ecological OUI and terminal identity information;
  • the home gateway determines, based on the ecological OUI encapsulated in the received Probe Request frame, whether the intelligent terminal belongs to the ecology that allows automatic discovery of fast network distribution;
  • the home gateway In response to receiving the authorization of the user, the home gateway opens the temporary distribution network hotspot AP, and encapsulates the temporary distribution information for the intelligent terminal to access the temporary network in a Probe Response frame and sends it to the intelligent terminal;
  • the intelligent terminal accesses the temporary network based on the temporary network configuration information encapsulated in the received Probe Response frame;
  • the home gateway initiates key negotiation with the intelligent terminal through the temporary network to obtain a negotiated key
  • the home gateway encrypts the network configuration information using the negotiated key, and sends it to the intelligent terminal, where the network configuration information includes the SSID and password of the Wi-Fi network of the home gateway;
  • the intelligent terminal decrypts the network configuration information using the negotiated key
  • the intelligent terminal uses the decrypted network distribution information to access the Wi-Fi network of the home gateway.
  • the home gateway encapsulates the ecological OUI together with the temporary network distribution information in a Probe Response frame and sends it to the smart terminal;
  • the intelligent terminal filters the received Probe Response frame according to the OUI in the VSIE data.
  • the intelligent terminal accessing the temporary network based on the temporary network configuration information encapsulated in the received Probe Response frame further includes: establishing a TCP connection between the intelligent terminal and the home gateway, and
  • Initiating, by the home gateway, key negotiation with the intelligent terminal through the temporary network further includes: the home gateway and the intelligent terminal use a SPEKE negotiation algorithm to perform key negotiation.
  • the quick connection method of the present invention has at least the following advantages:
  • the intelligent terminal actively initiates a distribution network request to realize the automatic discovery of the devices to be distributed, and to actively remind the user that there is a device that needs to be connected to the home network;
  • the home gateway conducts the ecological authentication of the connected terminal through the OUI information in the Probe Request. Only the OUI belonging to the cooperative ecology will prompt the user that there is a device currently actively requesting to connect to the network;
  • the VSIE will carry a temporarily generated SSID of the hotspot in the Probe Response frame, which realizes the security, specificity and randomness of the distribution network interaction environment;
  • the terminal establishes a TCP connection with the home gateway to complete the encrypted interaction and the distribution network information exchange, which is more stable, has a higher success rate, and has higher security than UDP, broadcast and other methods. ;
  • the device and the gateway jointly generate the distribution network key through the SPEKE protocol algorithm, and encrypt the distribution network information.
  • the distribution network key is not fixed, and it is generated according to the terminal, which improves the security of the entire distribution network process. to avoid security risks such as information leakage.
  • FIG. 1 is an exemplary structural diagram of a home gateway networking system according to an embodiment of the present invention.
  • FIG. 2 is an exemplary flowchart of a method for an intelligent terminal to automatically discover a network configuration according to an embodiment of the present invention.
  • FIG. 1 is an exemplary structural diagram of a home gateway networking system according to an embodiment of the present invention.
  • the home gateway networking system may include a home gateway (102), one or more networking terminals (10Sa, 108b), and one or more intelligent terminals (110a, 110b, 110c, 110d).
  • the home gateway 102 is generally provided by a telecommunication operator for connecting the home network to the Internet.
  • the home gateway 102 may also communicate with the smart home platform in the cloud via the Internet.
  • the home gateway 102 includes a networking plug-in 104 and a quick connect plug-in 106 .
  • the networking plug-in 104 and the quick connect plug-in 106 may be implemented in software (eg, as plug-ins running on the home gateway 102) or in hardware (eg, as separate or integrated hardware modules). Communication between the networking plug-in 104 and the quick-connect plug-in 106 may be performed through an inter-process communication mechanism (IPC).
  • IPC inter-process communication mechanism
  • networking terminals 10Sa , 108b
  • the networking terminals (10Sa, 108b) may be networking devices such as wireless routers, APs, and the like.
  • the networking terminal supports the IEEE 802.11 Wi-Fi standard protocol.
  • the networking terminal and the home gateway are shown as two different hardwares in FIG. 1, they can also be integrated together.
  • the networking terminal 108a and the networking terminal 108b are shown as being directly connected to the home gateway 102 respectively in FIG.
  • networking terminal 108b may be connected to the networking terminal 108a (eg, a wireless router).
  • networking terminal 108a eg, a wireless router.
  • Each networking terminal can be connected to one or more intelligent terminals (110a, 110b, 110c, 110d).
  • the intelligent terminals (110a, 110b, 110c, 110d) can discover the surrounding networking terminals by scanning.
  • the term “smart terminal” may refer to any mobile computing device with wireless communication capabilities (for example, supporting the IEEE 802.11 Wi-Fi standard protocol), so in the context of the present invention, it can also be used with “smart terminal equipment", “Mobile device” or “mobile terminal” are used interchangeably.
  • the smart terminals (110a, 110b, 110c, 110d) may be smart phones, tablet computers, notebook computers, smart speakers, smart TVs, smart cameras or other smart home appliances that support the IEEE802.11 Wi-Fi standard protocol.
  • This home gateway networking system can be configured to implement the method for quick connection of an intelligent terminal based on the Probe frame of the IEEE802.11 Wi-Fi standard protocol proposed by the present invention.
  • the method of the invention can realize the automatic discovery of the distribution network of the intelligent terminal.
  • the smart terminal device scans the network, it uses the Probe Request frame in the IEEE 802.11 Wi-Fi standard protocol to open the terminal's ecological ID, terminal product ID, terminal category ID, terminal's own ecological unique identifier, and smart device MAC and other terminal information. Report to surrounding networking terminals (such as APs) through VSIE (Vendor-Specific Information Element, vendor-specific information element). After receiving the device information, the AP filters the frames according to whether the VSIE has a specific organizational OUI (Organizationally Unique Identifier). Push the device information to the cloud/APP to realize the automatic discovery of the device distribution network on the user side.
  • VSIE Vehicle-Specific Information Element
  • OUI Organizationally Unique Identifier
  • the user sends the temporary network configuration information to the smart terminal device through the Probe Response frame of the AP when the client determines that the smart device is allowed to access the network.
  • the intelligent terminal device connects to the temporary hotspot AP according to the temporary network configuration information delivered by the AP contained in the VSIE, and establishes a TCP connection with the gateway.
  • the smart gateway and the smart terminal device further use the key exchange mechanism to negotiate the key.
  • the smart gateway uses the key to encrypt the network configuration information and sends it to the smart terminal device. network.
  • the Probe/Probe Response frame mentioned above is the frame specified and used in the IEEE 802.11 Wi-Fi standard protocol.
  • the Probe Response frame (that is, the beacon frame) is a very important maintenance mechanism, mainly used to announce the existence of a network.
  • the beacons sent periodically allow the mobile station to know the existence of the network and adjust the parameters necessary to join the network.
  • the access point is responsible for sending the Probe Response frame
  • the scope of the Probe Response frame is the basic service area. In a basic network, all communication must go through the access point, so workstations cannot be too far apart to receive beacons.
  • Probe frames are divided into Probe Request frames (ie, probe request frames) and Probe Response frames (ie, probe response frames).
  • the mobile station will use the Probe Request frame to scan which 802.11 networks are currently in its area. If the network probed by the Probe Request frame is compatible with it, the network will reply with a Probe Response frame.
  • VSIE Voice-Specific Information Element
  • Vendor-Specific Information Element Vendor-Specific Information Element
  • WMM wireless multimedia
  • the invention encapsulates the information required for quick connection into the VSIE in the form of a Type-Length-Value (type-length-value) triple data group, and completes the device information and the intelligent terminal device through the Probe frame.
  • the interaction of distribution network information enables intelligent terminals to quickly connect to the network.
  • the type indicates the category of the triple data group, and the categories include open ecological ID, product ID, category ID, self-owned ecological product identification, terminal MAC address, etc.
  • the length indicates the length of the value in the triple data group. for actual data.
  • an example of the Data data encapsulated in a Probe Request is as follows:
  • FIG. 2 is an exemplary flowchart of a method 200 for an intelligent terminal to automatically discover and configure a network according to an embodiment of the present invention.
  • the method 200 starts at step 202, and the intelligent terminal device encapsulates the terminal information in a Probe Request frame for transmission.
  • the smart terminal can actively send a Probe Request frame to scan the surrounding network and request to join the home network.
  • Terminal information can be encapsulated in the VSIE and added to the transmitted Probe Request frame.
  • the terminal information may include its own ecological OUI and terminal identity information, including but not limited to the terminal open ecological ID, terminal product ID, terminal category ID, terminal own ecological unique identifier, and the MAC address of the smart device.
  • the home gateway determines, based on the terminal information encapsulated in the received Probe Request frame, whether the intelligent terminal device belongs to an ecology that allows automatic discovery of fast network distribution.
  • the Probe Request frame sent by the intelligent terminal may be received by the surrounding networking terminals, and the networking terminal reports the Probe Request frame to the home gateway.
  • the home gateway runs a quick connect plug-in after power-on, and the quick connect plug-in can listen to the VSIE with a specific manufacturer's OUI in the Probe Request frame.
  • the Quick Connect plug-in can start the VSIE service to decapsulate the information encapsulated with VSIE in the Probe Request frame, and determine whether it contains the OUI of a specific manufacturer, such as whether it has the OUI of telecommunications. The purpose of this filtering is to identify the correct VSIE information. It can be understood that the quick-connect network access of the present invention needs to be implemented by relying on the relevant information encapsulated in the VSIE. If the OUI indicates another manufacturer, the subsequent quick-connect process cannot continue to be executed, so no further resources are required for processing.
  • step 204 If it is determined at step 204 that the smart terminal belongs to an ecosystem that allows automatic discovery of fast provisioning, the method proceeds to step 206 to send a message indicating the discovery of an unprovisioned device to the user to request the user's authorization to perform provisioning for the device.
  • the home gateway can notify the user that it has found a new device without a network configuration through the APP on the user's client (for example, the small wing housekeeper APP of China Telecom), and ask the user whether to automatically configure the network for the new device, and the user can directly Give a reply in the APP whether to authorize or not.
  • the user client may be at least one of the smart terminals already connected to the network, such as the user's smart phone, tablet computer, smart TV, and so on.
  • the home gateway in response to receiving the authorization of the user, opens the temporary distribution network hotspot AP, and encapsulates the temporary network configuration information for the intelligent terminal device to access the temporary network in a Probe Response frame and sends it to the intelligent terminal. If the user is not authorized, the process ends.
  • the SSID of the temporary network is randomly generated, and the temporary network configuration information of the temporary network may include the SSID and channel number of the temporary network.
  • the temporary network configuration information may further include the password.
  • the temporary distribution network information and the own ecological OUI can be encapsulated in the VSIE and added to the Probe Response frame and sent to the smart terminal.
  • the intelligent terminal device accesses the temporary network based on the temporary network configuration information encapsulated in the received ProbeResponse frame.
  • the smart terminal device can switch the Station mode, and according to the terminal's own ecological OUI included in the VSIE in the Probe Response frame, determine whether the AP hotspot is a temporary distribution network hotspot AP provided by the smart gateway. If yes, the intelligent terminal device can obtain temporary network configuration information such as the SSID and channel number of the temporary configuration network encapsulated in the VSIE, and then use the temporary network configuration information to connect to the temporary hotspot AP.
  • the smart terminal device can establish a TCP connection with the home gateway to improve stability, success rate and security. For example, the smart terminal device may call a designated port (eg, port 5883) in the home gateway to establish a TCP connection.
  • the home gateway initiates key negotiation with the intelligent terminal device through the temporary network.
  • the home gateway can send a network configuration request start message to the intelligent terminal device to be configured through a TCP connection, and the intelligent terminal device to be configured and the intelligent gateway can start the security negotiation through the SPEKE negotiation algorithm.
  • the SPEKE negotiation is based on the terminal The local and the pre-stored security factor S code of the platform is performed to generate the SPEKE negotiation key.
  • the home gateway encrypts the network configuration information using the negotiated key, and sends it to the intelligent terminal device to be networked.
  • the network configuration information may include the SSID and password of the Wi-Fi network of the home gateway, and/or other extended data.
  • the configuration network information is encrypted using the SPEKE negotiation key.
  • SPEKE negotiation algorithm is only an example, and any other suitable key negotiation algorithm can also be used to negotiate a key for encrypting the network configuration information sent by the gateway to the terminal to be configured.
  • step 216 the intelligent terminal device decrypts the network configuration information with the negotiated key.
  • the decrypted distribution network information can be temporarily saved locally.
  • step 218 the smart terminal device connects to the Wi-Fi network of the home gateway using the decrypted network distribution information.
  • the method of the present invention for quick connection of a smart device to a network has been described above. Compared with the prior art, the method of the present invention has at least the following advantages:
  • the user can automatically discover the device, and the device can be configured to access the network without entering the account password and one-key authorization;
  • the temporary distribution network hotspot SSID of AP devices such as home gateways and routers is randomly generated each time, open and hidden, and will not be discovered by direct scanning. Compared with the fixed distribution network hotspot SSID in the current technical solution, it is more flexible. Security, to prevent malicious connection to the distribution network AP causing the performance of home gateways and routers to degrade;
  • the distribution network device After the distribution network device establishes a TCP connection with AP devices such as home gateways and routers, conduct security negotiation and complete the interaction between the home network SSID and PASSWORD.
  • the TCP connection is more stable and secure, compared to broadcast, multicast, UDP and other forms. Improve the success rate and stability;
  • the intelligent terminal actively initiates the distribution network request to realize the automatic discovery of the equipment to be distributed, so that the user can choose and authorize the equipment distribution network according to the manufacturer's ecology, category, model, and terminal MAC;
  • the device information is verified to ensure the accuracy and security of the devices to be distributed;
  • the distribution network key is jointly generated by the device and the gateway, and the distribution network information is encrypted.
  • the distribution network key is not fixed. It is generated according to the terminal, which improves the security of the entire distribution network process and avoids information leakage. risk;

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un système de découverte automatique de configuration de réseau par un terminal intelligent. Lorsqu'un dispositif terminal intelligent balaye un réseau, des informations de terminal sont envoyées à une passerelle au moyen d'un VSIE en utilisant une trame de demande de sondage dans un protocole standard Wi-Fi IEEE 802.11, et la passerelle détermine, selon des OUI, si le dispositif appartient à l'écologie qui permet la découverte automatique d'une configuration de réseau rapide ; si c'est le cas, une autorisation d'utilisateur est demandée, et des informations de configuration de réseau temporaires sont envoyées au dispositif terminal intelligent en utilisant une trame de réponse de sondage d'un AP ; le dispositif terminal intelligent est connecté, selon les informations de configuration de réseau temporaire, à un AP de point d'accès sans fil temporaire activé par la passerelle et établit une connexion TCP avec la passerelle. Au moyen de la connexion TCP, la passerelle intelligente et le dispositif terminal intelligent négocient ensuite une clé à l'aide d'un mécanisme d'échange de clé, la passerelle intelligente chiffre des informations de configuration de réseau en utilisant une clé de négociation et envoie ensuite les informations au dispositif terminal intelligent, puis le dispositif terminal intelligent effectue un déchiffrement à l'aide de la clé de négociation et achève la configuration de réseau automatique en utilisant les informations de configuration de réseau.
PCT/CN2021/135948 2021-02-18 2021-12-07 Procédé et système de découverte automatique de configuration de réseau par un terminal intelligent WO2022174652A1 (fr)

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WO2018164486A1 (fr) * 2017-03-08 2018-09-13 삼성전자주식회사 Dispositif électronique et son procédé de commande de connexion de communication sans fil
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