METHOD, DEVICE AND SYSTEM FOR RADIO FREQUENCY DEVICE PAIRING

• US 20130210357A1
• Filed: 12/26/2012
• Published: 08/15/2013
• Est. Priority Date: 02/10/2012
• Status: Active Grant

• Current Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Inventors: QIN, Xiaoqing, WANG, Fei, LIN, Yanfu
• Granted Patent: US 9,059,775 B2
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: H04B 7/26 at least one of which is mobile
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/50 Secure pairing of devices

Abstract

A method for radio frequency device pairing includes: after a pairing instruction is received, sending a discovery request message to a second radio frequency device; receiving a discovery response message returned by the second radio frequency device; sending a first pairing request message to the second radio frequency device; receiving a first pairing response message returned by the second radio frequency device; after a button instruction entered by the user according to interface information displayed by the second radio frequency device is received, sending, to the second radio frequency device, a second pairing request message which contains button information corresponding to the button instruction; receiving a second pairing response message which is returned by the second radio frequency device and contains a confirmation result indicating that the button information and the interface information are successfully matched; exchanging keys with the target second radio frequency device, thereby completing pairing.

Claims

1. A method for radio frequency device pairing, comprising:

after a paring instruction entered by a user is received, sending a discovery request message to at least one second radio frequency device;

receiving a discovery response message returned by the at least one second radio frequency device;

sending a first pairing request message to a target second radio frequency device in the at least one second radio frequency device;

receiving a first paring response message returned by the target second radio frequency device;

after a button instruction entered by the user according to interface information displayed by the target second radio frequency device is received, sending a second paring request message to the target second radio frequency device, wherein the second pairing request message contains button information corresponding to the button instruction, and the interface information is prompt information that gives a prompt about a button required to be entered by the user; and

receiving a second pairing response message which is returned by the target second radio frequency device and contains a confirmation result; and

if the confirmation result indicates that the button information and the interface information are successfully matched, exchanging keys with the target second radio frequency device, thereby completing pairing with the target second radio frequency device.

2. The method according to claim 1, wherein after receiving the first pairing response message returned by the target second radio frequency device, the method further comprises:

starting a timer, and if the button instruction entered by the user is not received in a predetermined period of time, exiting a pairing process.

3. The method according to claim 1, wherein when there are multiple second radio frequency devices, after discovery response messages returned by the multiple second radio frequency devices are received, the method further comprises a step of determining the target second radio frequency device, which comprises selecting a second radio frequency device as the target second radio frequency device by matching a manufacturer number of the second radio frequency device and a list of capabilities of a radio frequency device supported by the second radio frequency device, wherein the manufacturer number and the list are carried in each discovery response message, and the selected second radio frequency device has the manufacturer number and a list which match a first radio frequency device, and returns a discovery response message with strongest strength, and the first radio frequency device is a radio frequency device that performs pairing with the at least one second radio frequency device.

4. The method according to claim 1, further comprising:

after the first pairing request message is sent to the target second radio frequency device in the at least one second radio frequency device, and if the second pairing response message which is returned by the target second radio frequency device and contains the confirmation result is received, and the confirmation result indicates that the pairing succeeds, exchanging the keys with the target second radio frequency device, thereby completing the pairing with the target second radio frequency device.

5. A method for radio frequency device pairing, comprising:

after a discovery request message sent by a first radio frequency device is received, returning a discovery response message to the first radio frequency device;

after a first paring request message sent by the first radio frequency device is received, returning a first paring response message to the first radio frequency device, and displaying interface information, wherein the interface information is prompt information that gives a prompt about a button required to be entered by a user;

receiving a second pairing request message sent by the first radio frequency device, wherein the second pairing request message contains button information corresponding to a button instruction entered by the user according to the interface information;

if it is determined that the button information and the interface information are successfully matched, returning, to the first radio frequency device, a second pairing response message which contains a confirmation result, wherein the confirmation result indicates that the button information and the interface information are successfully matched; and

exchanging keys with the first radio frequency device, and prompting a user end that a pairing process succeeds.

6. The method according to claim 5, wherein after returning the first pairing response message to the first radio frequency device, the method further comprises:

starting a timer, and if the second pairing request message which is sent by the first radio frequency device and contains the button information corresponding to the button instruction entered by the user according to the interface information is not received in a predetermined period of time, exiting the pairing process.

7. The method according to claim 5, wherein after the first pairing request message sent by the first radio frequency device is received, the method further comprises:

if it is determined that a second radio frequency device stores pairing information of the first radio frequency device, returning, to the first radio frequency device, a second pairing response message which contains a confirmation result, wherein the confirmation result indicates that the pairing process succeeds, exchanging the keys with the first radio frequency device, and prompting the user end that the pairing process succeeds, wherein the second radio frequency device performs the pairing process with the first radio frequency device,

wherein the pairing information corresponds to the first radio frequency device and is stored in the second radio frequency device after the second radio frequency device and the first radio frequency device successfully perform the pairing process once.

8. A radio frequency device, comprising:

a user instruction receiving unit, configured to receive a pairing instruction entered by a user;

a discovery request sending unit, configured to, after the user instruction receiving unit receives the pairing instruction entered by the user, send a discovery request message to at least one second radio frequency device;

a discovery response receiving unit, configured to receive a discovery response message returned by the at least one second radio frequency device;

a first pairing request sending unit, configured to send a first pairing request message to a target second radio frequency device in the at least one second radio frequency device;

a first pairing response receiving unit, configured to receive a first pairing response message returned by the target second radio frequency device;

a second pairing request sending unit, configured to, after a button instruction entered by the user according to interface information displayed by the target second radio frequency device is received, send a second paring request message to the target second radio frequency device, wherein the second pairing request message contains button information corresponding to the button instruction, and the interface information is prompt information that gives a prompt about a button required to be entered by the user;

a second pairing response receiving unit, configured to receive a second pairing response message which is returned by the target second radio frequency device and contains a confirmation result; and

a key exchanging unit, configured to, if the confirmation result indicates that the button information and the interface information are successfully matched, exchange keys with the target second radio frequency device, thereby completing a pairing process with the target second radio frequency device.

9. The radio frequency device according to claim 8, further comprising:

a timing unit, configured to start timing after the first pairing response message returned by the target second radio frequency device is received, wherein the pairing process is ended if the button instruction entered by the user is not received in a predetermined period of time.

10. The radio frequency device according to claim 8, wherein the radio frequency device is a first radio frequency device, and the discovery response receiving unit is further configured to, when there are multiple second radio frequency devices, and when discovery response messages returned by the multiple second radio frequency devices are received, select a second radio frequency device as the target second radio frequency device by matching a manufacturer number of the second radio frequency device and a list of capabilities of a radio frequency device supported by the second radio frequency device, wherein the manufacturer number and the list are carried in each discovery response message, and the selected second radio frequency device has a manufacturer number and a list which match the first radio frequency device, and returns a discovery response message with strongest strength.

11. The radio frequency device according to claim 8, wherein the second pairing response receiving unit is further configured to, after the first pairing request sending unit sends the first pairing request message to the target second radio frequency device in the at least one second radio frequency device, receive the second pairing response message which is returned by the target second radio frequency device and contains the confirmation result, wherein the confirmation result indicates that the pairing process succeeds;

and

the key exchanging unit is further configured to, after the second pairing response receiving unit receives the second pairing response message which contains the confirmation result indicating that the pairing process succeeds, exchange the keys with the target second radio frequency device, thereby completing the pairing process with the target second radio frequency device.

12. A radio frequency device, comprising:

a discovery request receiving unit, configured to receive a discovery request message sent by a first radio frequency device;

a discovery response returning unit, configured to return a discovery response message to the first radio frequency device;

a first pairing request receiving unit, configured to receive a first pairing request message sent by the first radio frequency device;

a displaying unit, configured to display interface information after the first pairing request receiving unit receives the first pairing request message sent by the first radio frequency device, wherein the interface information is prompt information that gives a prompt about a button required to be entered by a user;

a first pairing response returning unit, configured to return a first pairing response message to the first radio frequency device;

a second pairing request receiving unit, configured to receive a second pairing request message sent by the first radio frequency device, wherein the second pairing request message contains button information corresponding to a button instruction entered by the user according to the interface information;

a second pairing response returning unit, configured to, if it is determined that the button information and the interface information are successfully matched, return, to the first radio frequency device, a second pairing response message which contains a confirmation result, wherein the confirmation result indicates that the button information and the interface information are successfully matched; and

a key exchanging unit, configured to, after the second pairing response returning unit returns the second pairing response message which contains the confirmation result indicating that the button information and the interface information are successfully matched, exchange keys with the first radio frequency device, and prompt a user end that a pairing process succeeds.

13. The radio frequency device according to claim 12, further comprising:

a timing unit, configured to start timing after the first pairing response returning unit returns the first pairing response message to the first radio frequency device, wherein a pairing process is ended if in a predetermined period of time the second pairing request receiving unit does not receive the second pairing request message which is sent by the first radio frequency device and contains the button information corresponding to the button instruction entered by the user according to the interface information.

14. The radio frequency device according to claim 12, further comprising:

a judging unit, configured to, after the first paring request receiving unit receives the first pairing request message sent by the first radio frequency device, judge whether the radio frequency device stores pairing information of the first radio frequency device.

15. The radio frequency device according to claim 14, wherein

the second pairing response returning unit is further configured to, when the judging unit judges that the radio frequency device stores the pairing information of the first radio frequency device, return, to the first radio frequency device, the second pairing response message which contains the confirmation result, wherein the confirmation result indicates that the pairing process succeeds;

the second key exchanging unit is further configured to, after the second pairing response returning unit returns the second pairing response message which contains the confirmation result indicating that the pairing process succeeds, exchange the keys with the first radio frequency device, and prompt the user end that the pairing process succeeds; and

the displaying unit is further configured to, when the judging unit judges that the radio frequency device does not store the pairing information of the first radio frequency device, display the interface information.

16. A non-transitory computer-readable storage medium having a computer program code which, when executed by a hardware processor causes the hardware processor to execute the following steps:

after a paring instruction entered by a user is received, sending a discovery request message to at least one second radio frequency device;

receiving a discovery response message returned by the at least one second radio frequency device;

sending a first pairing request message to a target second radio frequency device in the at least one second radio frequency device;

receiving a first paring response message returned by the target second radio frequency device;

after a button instruction entered by the user according to interface information displayed by the target second radio frequency device is received sending a second paring request message to the target second radio frequency device, wherein the second pairing request message contains button information corresponding to the button instruction, and the interface information is prompt information that gives a prompt about a button required to be entered by the user; and

receiving a second pairing response message which is returned by the target second radio frequency device and contains a confirmation result; and

if the confirmation result indicates that the button information and the interface information are successfully matched, exchanging keys with the target second radio frequency device, thereby completing pairing with the target second radio frequency device.