Method and device for wireless connection

• US 10,205,776 B2
• Filed: 08/18/2015
• Issued: 02/12/2019
• Est. Priority Date: 12/23/2014
• Status: Active Grant

• Current Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Original Assignee: Xiaomi Inc. (Xiaomi Corp.)
• Inventors: Liang, Xin, Wu, Ping, Liu, Xin, Liu, Bo, Wu, Guizhou
• Primary Examiner(s): Rahman, S M
• Assistant Examiner(s): Pant, Ranjan
• Application Number:
  US14/829,603
• Publication Number:
  US 20160182624A1
• Time in Patent Office: 1,274 Days
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 63/065 for group communications cryptographic mechanisms or cryptographic arrangements for key management involving conference or group key H04L9/0833
• CPC Class Codes: H04L 63/083 using passwords cryptographic mechanisms or cryptographic arrangements for entity authentication using a predetermined code H04L9/3226
• CPC Class Codes: H04L 63/104 Grouping of entities
• CPC Class Codes: H04L 67/1046 Joining mechanisms
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 12/77 Graphical identity

Abstract

According to the embodiments of the present disclosure, a first terminal device may create a peer-to-peer (P2P) group, and then determine a Service Set Identifier (SSID) and a connection password of the P2P group, and then send the SSID and the connection password to a second terminal device so that the second terminal device is able to connect to the first terminal device according to the SSID and the connection password. In this way, prior to establishment of the wireless connection, the second terminal device may acquire the SSID and the connection password of the P2P group created by the first terminal device, thus second terminal device may directly use the SSID and the connection password to connect to the first terminal device without cumbersome discovery and negotiation processes as used in establishment of a conventional P2P connection.

Claims

1. A method for establishing a wireless connection in a first terminal device, comprising:

creating a peer-to-peer (P2P) group without disconnecting an existing wireless connection of the first terminal device;

determining a Service Set Identifier (SSID) and a connection password of the P2P group; and

sending the SSID and the connection password to a second terminal device by broadcasting a WIFI frame so that the second terminal device is able to directly connect to the pre-created P2P group according to the SSID and the connection password without search or negotiation process;

wherein sending the SSID and the connection password to a second terminal device by broadcasting a WIFI frame comprises;

the WIFI frame is a Probe Request frame, wherein the SSID and the connection password is placed in an SSID field of the Probe Request frame.

2. The method of claim 1, wherein determining the SSID and the connection password of the P2P group comprises:

acquiring an SSID and a connection password generated randomly at the time of creating the P2P group; and

determining the SSID and the connection password generated randomly as the SSID and the connection password of the P2P group.

3. The method of claim 1, wherein determining the SSID and the connection password of the P2P group comprises:

acquiring an SSID and a connection password inputted from a user; and

determining the SSID and the connection password inputted from the user as the SSID and the connection password of the P2P group.

4. The method of claim 1, wherein sending the SSID and the connection password to the second terminal device comprises:

directly sending the SSID and the connection password to the second terminal device through a same local area network (LAN), a Bluetooth connection, or a near field communication (NFC) connection.

5. A method for establishing a wireless connection in a second terminal device, comprising:

generating an SSID and a connection password;

displaying the SSID and the connection password on a screen of the second terminal device in a predetermined manner so that a first terminal device is able to acquire the SSID and the connection password to create a P2P group according to the SSID and the connection password; and

connecting with the P2P group pre-created by the first terminal device directly according to the SSID and the connection password received from the first terminal in the SSID field of a Probe Request frame without search or negotiation process.

6. The method of claim 5, wherein displaying the SSID and the connection password on a screen of the second terminal device in the predetermined manner comprises:

displaying the SSID and the connection password on the screen of the second terminal device in a form of a two-dimensional barcode.

7. A method for establishing a wireless connection in a first terminal device, comprising:

acquiring an SSID and a connection password displayed on a screen of a second terminal device;

creating a P2P group without disconnecting an existing wireless connection of the first terminal device; and

setting an SSID and a connection password of the P2P group as the SSID and the connection password provided from the second terminal device so that the second terminal device is able to directly connect to the pre-created P2P group according to the SSID and the connection password.

8. The method of claim 7, wherein acquiring the SSID and the connection password displayed by the second terminal device comprises:

capturing an image displayed on the screen of the second terminal device in a predetermined manner, wherein the image indicates the SSID and the connection password provided from the second terminal device; and

extracting the SSID and the connection password from the image captured.

9. The method of claim 8, wherein the image are in a form of a two-dimensional barcode.

10. A first terminal device for establishing a wireless connection, comprising:

a processor; and

a memory configured to store instructions executable by the processor;

wherein, the processor is configured to perform;

creating a peer-to-peer (P2P) group without disconnecting an existing wireless connection of the first terminal device;

determining a Service Set Identifier (SSID) and a connection password of the P2P group; and

sending the SSID and the connection password to a second terminal device by broadcasting a WIFI frame so that the second terminal device is able to directly connect to the pre-created P2P group according to the SSID and the connection password without search or negotiation process;

wherein sending the SSID and the connection password to a second terminal device by broadcasting a WIFI frame comprises;

the WIFI frame is a Probe Request frame, wherein the SSID and the connection password is placed in an SSID field of the Probe Request frame.

11. The first terminal device of claim 10, wherein determining the SSID and the connection password of the P2P group comprises:

acquiring an SSID and a connection password generated randomly at the time of creating the P2P group; and

determining the SSID and the connection password generated randomly as the SSID and the connection password of the P2P group.

12. The first terminal device of claim 10, wherein determining the SSID and the connection password of the P2P group comprises:

acquiring an SSID and a connection password inputted from a user; and

determining the SSID and the connection password inputted from the user as the SSID and the connection password of the P2P group.

13. The first terminal device of claim 10, wherein sending the SSID and the connection password to the second terminal device comprises:

directly sending the SSID and the connection password to the second terminal device through a same local area network (LAN), a Bluetooth connection, or a near field communication (NFC) connection.

14. A second terminal device for establishing a wireless connection, comprising:

a processor; and

a memory configured to store instructions executable by the processor;

wherein, the processor is configured to perform;

generating an SSID and a connection password;

displaying the SSID and the connection password on a screen of the second terminal device in a predetermined manner so that a first terminal device is able to acquire the SSID and the connection password to create a P2P group according to the SSID and the connection password; and

connecting with the P2P group pre-created by the first terminal device directly according to the SSID and the connection password received from the first terminal in the SSID field of a Probe Request frame without search or negotiation process.

15. The second terminal device of claim 14, wherein displaying the SSID and the connection password on a screen of the second terminal device comprises:

displaying the SSID and the connection password on the screen of the second terminal device in a form of a two-dimensional barcode.

16. A first terminal device for establishing a wireless connection, comprising:

a processor; and

a memory configured to store instructions executable by the processor;

wherein, the processor is configured to perform;

acquiring an SSID and a connection password displayed on a screen of a second terminal device;

creating a P2P group without disconnecting an existing wireless connection of the first terminal device; and

setting an SSID and a connection password of the P2P group as the SSID and the connection password provided from the second terminal device so that the second terminal device is able to directly connect to the pre-created P2P group according to the SSID and the connection password without search or negotiation process.

17. The first terminal device of claim 16, wherein acquiring the SSID and the connection password displayed on a screen of the second terminal device comprises:

capturing an image displayed on the screen of the second terminal device in a predetermined manner, wherein the image indicates the SSID and the connection password provided from the second terminal device; and

extracting the SSID and the connection password from the image captured.

18. The first terminal device of claim 17, wherein the image are in a form of a two-dimensional barcode.