METHOD AND SYSTEM FOR AUTOMATICALLY ADAPTING TO WI-FI NETWORK WITH HIDDEN SSID

• US 20160249287A1
• Filed: 05/08/2015
• Published: 08/25/2016
• Est. Priority Date: 09/15/2014
• Status: Active Grant

• Current Assignee: Zhejiang Shenghui Lighting Company Limited (Tongxiang Shenghui Lighting Electrical Company Limited)
• Original Assignee: Zhejiang Shenghui Lighting Company Limited (Tongxiang Shenghui Lighting Electrical Company Limited)
• Inventors: XIE, SHENGLI, ZHU, XIAOPING, SHEN, JINXIANG
• Granted Patent: US 10,117,169 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G08B 5/38 using flashing light
• CPC Class Codes: H04L 9/0631 Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 12/10 Integrity
• CPC Class Codes: H04W 12/73 Access point logical identity
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A method for automatically adapting to a Wi-Fi network with hidden service set identifier (SSID) is provided. The method includes a wireless access point (AP) hiding an SSID of the wireless AP and receiving a probe request frame containing request information for automatically adapting to a Wi-Fi network of the wireless AP within coverage of the wireless AP. The method also includes the wireless AP determining whether the probe request frame contains the request information for automatically adapting to the Wi-Fi network of the wireless AP and the wireless AP sending a probe response frame when the probe request frame contains the request information for automatically adapting to the Wi-Fi network of the wireless AP. Further, the method includes the wireless AP receiving a connection request sent by at least one Wi-Fi terminal, such that the at least one Wi-Fi terminal is connected to the Wi-Fi network wirelessly.

Claims

1. A method for automatically adapting to a Wireless Fidelity (Wi-Fi) network with hidden Service Set Identifier (SSID), comprising:

hiding, by a wireless access point (AP), an SSID of the wireless AP;

receiving, by the wireless AP, a probe request frame containing request information for automatically adapting to a Wi-Fi network of the wireless AP within coverage of the wireless AP;

determining, by the wireless AP, whether the probe request frame contains the request information for automatically adapting to the Wi-Fi network of the wireless AP;

when the probe request frame contains the request information for automatically adapting to the Wi-Fi network of the wireless AP, sending, by the wireless AP, a probe response frame corresponding to the probe request frame;

receiving, by the wireless AP, a connection request sent by at least one Wi-Fi terminal; and

connecting the at least one Wi-Fi terminal to the Wi-Fi network.

2. The method according to claim 1, wherein:

the request information for automatically adapting to the Wi-Fi network is contained in a vendor specific field of the probe request frame; and

the request information for automatically adapting to the Wi-Fi network is network information of the wireless AP that the Wi-Fi terminal wants to join.

3. The method according to claim 2, wherein:

the request information for automatically adapting to the Wi-Fi network includes an identifier for automatically adapting to the Wi-Fi network, a demand service identifier, a type and model of the Wi-Fi terminal, and functions provided by the Wi-Fi terminal.

4. The method according to claim 2, wherein:

the vendor specific field of the probe request frame contains a check code which is used to check information integrity for the vendor specific field.

5. The method according to claim 1, wherein:

the vendor specific field of the probe request frame contains an Organizationally Unique Identifier (OUI).

6. The method according to claim 2, wherein:

through checking whether the vendor specific field in the probe request frame contains the request information for automatically adapting to the Wi-Fi network of the wireless AP, the wireless AP determines whether the Wi-Fi terminal that sends the probe request frame is allowed to use a service provided by the wireless AP.

7. The method according to claim 1, wherein:

the probe response frame contains confirmation information for automatically adapting to the Wi-Fi network and connection information of the wireless AP.

8. The method according to claim 7, wherein:

the confirmation information for automatically adapting to the Wi-Fi network and the connection information of the wireless AP are contained in the vendor specific field of the probe response frame.

9. The method according to claim 7, wherein:

the confirmation information for automatically adapting to the Wi-Fi network includes the identifier for automatically adapting to the Wi-Fi network, the demand service identifier, a type and model of the wireless AP, and functions provided by the wireless AP.

10. The method according to claim 8, wherein:

the vendor specific field of the probe response frame contains a check code which is used to check information integrity for the vendor specific field.

11. The method according to claim 8, wherein:

the vendor specific field of the probe response frame contains the OUI.

12. The method according to claim 7, wherein:

the connection information includes the SSID, a safe mode, an encryption method, a key, and a key set.

13. The method according to claim 12, wherein:

the connection information is encrypted using Advanced Encryption Standard-128 (AES-128).

14. The method according to claim 1, wherein:

the Wi-Fi terminal processes the probe response frame containing the confirmation information for automatically adapting to the Wi-Fi network sent from the wireless AP;

based on contents of the probe response frame, the Wi-Fi terminal determines whether to join the Wi-Fi network; and

when the Wi-Fi terminal determines to join the Wi-Fi network, a network connection process defined by the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standards is started, such that the Wi-Fi terminal is connected to the Wi-Fi network.

15. A system for automatically adapting to a Wireless Fidelity (Wi-Fi) network with hidden Service Set Identifier (SSID), comprising:

a wireless access point (AP) configured to process a probe request frame sent from at least one Wi-Fi terminal, wherein the wireless AP further includes;

a configuration management module configured to hide an SSID of the wireless AP;

a receiving module configured to receive the probe request frame sent from the at least one Wi-Fi terminal and receive a connection request from the at least one Wi-Fi terminal;

a determination module configured to determine whether the probe request frame contains request information for automatically adapting to a Wi-Fi network of the wireless AP; and

a sending module configured to send a probe response frame after it is determined that the probe request frame contains the request information for automatically adapting to the Wi-Fi network of the wireless AP; and

the at least one Wi-Fi terminal configured to;

send the probe request frame to the wireless AP;

receive the probe response frame sent from the wireless AP; and

send the connection request to the wireless AP to connect the at least one Wi-Fi terminal to the wireless AP.

16. The system according to claim 15, wherein:

the request information for automatically adapting to the Wi-Fi network is contained in vendor specific field of the probe request frame; and

the request information for automatically adapting to the Wi-Fi network is network information of the wireless AP that the Wi-Fi terminal wants to join.

17. The system according to claim 15, wherein:

the probe response frame contains confirmation information for automatically adapting to the Wi-Fi network and connection information of the wireless AP.

18. The system according to claim 17, wherein:

the confirmation information for automatically adapting to the Wi-Fi network and the connection information of the wireless AP are contained in a vendor specific field of the probe response frame.

19. The system according to claim 17, wherein:

the connection information includes the SSID, a safe mode, an encryption method, a key and a key set.

20. The system according to claim 19, wherein:

the connection information is encrypted using Advanced Encryption Standard-128 (AES-128).