WIRELESS DEVICE, PAIRING METHOD, AND UNPAIRING METHOD

• US 20100029205A1
• Filed: 04/23/2009
• Published: 02/04/2010
• Est. Priority Date: 07/31/2008
• Status: Active Grant

• Current Assignee: Nanning Fugui Precision Industrial Co., Ltd.
• Original Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: DING, GUO-ZHI, LU, CHI-MING
• Granted Patent: US 8,340,007 B2
• Time in Patent Office: Days
• US Class Current: 455/41.200
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/08 Access security

Abstract

A wireless device triggers pairing or un-pairing between the wireless device and another wireless device. The wireless device further exchanges media access control (MAC) addresses, pairing magic numbers (PMNs), and pairing indices with the another wireless device so as to establish the pairing with the another wireless device upon the condition that the wireless device triggers the pairing. The wireless device further exchanges the MAC addresses, the PMNs, and the pairing indices with the another wireless device so as to establish the unpairing with the another wireless device upon the condition that the wireless device triggers the unpairing. The pairing magic numbers are operable to identify the pairing between the wireless device and the another wireless device. The pairing indices are operable to launch the MAC addresses, the PMNs, and the pairing indices.

Claims

1. A wireless device adapted for establishing pairing or unpairing with another wireless device, the wireless device comprising a processor, a memory, and one or more programs, wherein the one or more programs are stored in the memory and operable to be executed by the processor, the programs comprising:

a triggering module operable to trigger the pairing or the un-pairing between the wireless device and the another wireless device; and

a frame exchange module operable to exchange media access control (MAC) addresses, pairing magic numbers, and pairing indices with the another wireless device so as to establish the pairing with the another wireless device upon the condition that the triggering module triggers the pairing, and operable to exchange the MAC addresses, the pairing magic numbers, and the pairing indices with the another wireless device to so as to establish the unpairing with the another wireless device upon the condition that the triggering module triggers the un-pairing;

wherein the pairing magic numbers are operable to identify the pairing between the wireless device and the another wireless device, and the pairing indices are operable to launch the MAC addresses, the pairing magic numbers, and the pairing indices.

2. The wireless device of claim 1, further comprising:

a storage module operable to store the MAC address, the pairing magic number, and the pairing index of the another wireless device; and

a mode selecting module operable to select a mode from an enrollee mode and a register mode.

3. The wireless device of claim 2, wherein the frame exchange module is further operable to receive a wait-pairing frame from the another wireless device, send a join-pairing frame to the another wireless device, and receive a pairing-accept frame from the another wireless device, so as to exchange the MAC addresses, the pairing magic numbers, and the pairing indices with the another wireless device, upon the condition that the triggering module triggers the pairing and the mode selecting module selects the enrollee mode.

4. The wireless device of claim 3, wherein:

the wait-pairing frame comprises the MAC address and the pairing magic number of the another wireless device, so as to notify the wireless device that the another wireless device is waiting for the pairing;

the join-pairing frame comprises the MAC address, the pairing magic number, and the pairing index of the wireless device, and the MAC address and the pairing magic number of the another wireless device, so as to notify the another wireless device that the wireless device joins in the pairing; and

the pairing-accept frame comprises the MAC address, the pairing magic number, and the pairing index of the wireless device, and the MAC address, the pairing magic number, and the pairing index of the another wireless device, so as to notify that the wireless device that the another wireless device accepts the pairing of the wireless device.

5. The wireless device of claim 2, wherein the frame exchange module is further operable to broadcast a wait-pairing frame to the another wireless device, receive a join-pairing frame from the another wireless device, and send a pairing-accept frame to the another wireless device, so as to exchange the MAC addresses, the pairing magic numbers, and the pairing indices with the another wireless device, upon the condition that the triggering module triggers the pairing and the mode selecting module selects the register mode.

6. The wireless device of claim 5, wherein:

the wait-pairing frame comprises the MAC address and the pairing magic number of the wireless device, so as to notify the another wireless device that the wireless device is waiting for the pairing;

the join-pairing frame comprises the MAC address and the pairing index of the wireless device, and the MAC address, the pairing magic number, and the pairing index of the another wireless device, so as to notify the wireless device that the another wireless device joins in the pairing; and

the pairing-accept frame comprises the MAC address, the pairing magic number, and the pairing index of the wireless device, and the MAC address, the pairing magic number, and the pairing index of the another wireless device, so as to notify the another wireless device that the wireless device accepts the pairing of the another wireless device.

7. The wireless device of claim 2, wherein the frame exchange module is further operable to receive a request-unpairing frame from the another wireless device, send a join-unpairing frame to the another wireless device, and receive an unpairing-confirm frame from the another wireless device, so as to exchange the MAC addresses, the pairing magic numbers, and the pairing indices with the another wireless device, upon the condition that the triggering module triggers the unpairing and the mode selecting module selects the enrollee mode.

8. The wireless device of claim 7, wherein:

the request-unpairing frame comprises the MAC address and the pairing magic number of the another wireless device, so as to notify the wireless device that the another wireless device is requesting for the unpairing;

the join-unpairing frame comprises the MAC address, the pairing magic number, and the pairing index of the wireless device, and the MAC address, the pairing magic number, and the pairing index of the another wireless device, so as to notify the another wireless device that the wireless device joins in the unpairing; and

the unpairing-confirm frame comprises the MAC address, the pairing magic number, and the pairing index of the wireless device, and the MAC address, the pairing magic number, and the pairing index of the another wireless device, so as to notify the wireless device that the another wireless device confirms the unpairing of the wireless device.

9. The wireless device of claim 2, wherein the frame exchange module is further operable to broadcast a request-unpairing frame to the another wireless device, receive a join-unpairing frame from the another wireless device, and send an unpairing-confirm frame to the another wireless device, so as to exchange the MAC addresses, the pairing magic numbers, and the pairing indices with the another wireless device, upon the condition that the triggering module triggers the unpairing and the mode selecting module selects the register mode.

10. The wireless device of claim 9, wherein:

the request-unpairing frame comprises the MAC address and the pairing magic number of the wireless device, so as to notify the another wireless device that the wireless device is requesting for the unpairing;

the join-unpairing frame comprises the MAC address, the pairing magic number, and the pairing index of the wireless device, and the MAC address, the pairing magic number, and the pairing index of the another wireless device, so as to notify the wireless device that the another wireless device joins in the unpairing; and

the unpairing-confirm frame comprises the MAC address, the pairing magic number, and the pairing index of the wireless device, and the MAC address, the pairing magic number, and the pairing index of the another wireless device, so as to notify the another wireless device that the wireless device confirms the unpairing of the another wireless device.

11. The wireless device of claim 1, wherein the frame exchange module is operable to receive a pairing-information frame comprising the MAC address and the pairing magic number of the another wireless device from the another wireless device, determine whether the MAC address of the another wireless device is in a pairing list and whether the pairing magic number of the another wireless device has expired, and cancel the MAC address, the pairing magic number, and the pairing index of the another wireless device upon the condition that the MAC address of the another wireless device is in the pairing list and the pairing magic number of the another wireless device has expired.

12. The wireless device of claim 1, further comprising:

a pairing determining module operable to determine whether a pairing number of the wireless device exceeds a maximum pairing amount upon the condition that the triggering module triggers the pairing, and abort the pairing upon the condition that the pairing number of the wireless device exceeds the maximum pairing amount, and operable to determine whether the wireless device has been paired upon the condition that the triggering module triggers the unpairing, and abort the unpairing upon the condition that the wireless device has not been paired; and

an indicating module operable to indicate a pairing status and an unpairing status of the wireless device.

13. A pairing method for establishing pairing between a first wireless device and a second wireless device, the pairing method comprising:

triggering the pairing between the first wireless device and the second wireless device and entering a register mode by the second wireless device;

triggering the pairing between the first wireless device and the second wireless device and entering an enrollee mode by the first wireless device; and

exchanging media access control (MAC) addresses, pairing magic numbers, and pairing indices between the first wireless device and the second wireless device to establish the pairing between the first wireless device and the second wireless device, wherein the pairing magic numbers are operable to identify the pairing between the first wireless device and the second wireless device, and the pairing indices are operable to launch the MAC addresses, the pairing magic numbers, and the pairing indices.

14. The pairing method of claim 13, further comprising:

determining whether a pairing number of the first wireless device exceeds a maximum pairing amount;

aborting the pairing between the first wireless device and the second wireless device if the pairing number exceeds the maximum pairing amount;

or

continuing the pairing between the first wireless device and the second wireless device if the pairing number does not exceed the maximum pairing amount.

15. The pairing method of claim 13, wherein the exchanging step comprises:

generating the pairing magic number of the second wireless device by the second wireless device;

broadcasting a wait-pairing frame from the second wireless device to the first wireless device, wherein the wait-pairing frame comprises the MAC address and the pairing magic number of the second wireless device, so as to notify the first wireless device that the second wireless device is waiting for the pairing;

receiving the wait-pairing frame by the first wireless device;

generating the pairing magic number of the first wireless device and allocating the pairing index of the first wireless device by the first wireless device;

sending a join-pairing frame from the first wireless device to the second wireless device, wherein the join-pairing frame comprises the MAC address, the pairing magic number, and the pairing index of the first wireless device, and the MAC address and the pairing magic number of the second wireless device, so as to notify the second wireless device that the first wireless device joins in the pairing;

receiving the join-pairing frame and checking whether the pairing magic number of the second wireless device is valid by the second wireless device;

allocating the pairing index of the second wireless device by the second wireless device if the pairing magic number of the second wireless device is valid;

sending a pairing-accept frame from the second wireless device to the first wireless device, wherein the pairing-accept frame comprises the MAC address, the pairing magic number, and the pairing index of the first wireless device, and the MAC address, the pairing magic number, and the pairing index of the second wireless device, so as to notify the first wireless device that the second wireless device accepts the pairing of the first wireless device;

storing the MAC address, the pairing magic number, and the pairing index of the first wireless device by the second wireless device; and

receiving the pairing-accept frame and storing the MAC address, the pairing magic number, and the pairing index of the second wireless device by the first wireless device.

16. The pairing method of claim 13, further comprising:

exchanging the MAC addresses, the pairing magic numbers, and the pairing indices between the first wireless device and the second wireless device to establish unpairing between the first wireless device and the second wireless device;

canceling the MAC address, the pairing magic number, the pairing index of the first wireless device by the second wireless device; and

canceling the MAC address, the pairing magic number, the pairing index of the second wireless device by the first wireless device.

17. The pairing method of claim 13, further comprising:

broadcasting a pairing-information frame by the second wireless device, wherein the pairing-information frame comprises the MAC address and the pairing magic number of the second wireless device;

receiving the pairing-information frame and determining whether the MAC address of the second wireless device is in a pairing list by the first wireless device;

determining whether the pairing magic number of the second wireless device has expired by the first wireless device, if the MAC address of the second wireless device is in the pairing list; and

canceling the MAC address, the pairing magic number, and the pairing index of the second wireless device by the first wireless device, if the pairing magic number of the second wireless device has expired.

18. An unpairing method for establishing unpairing between a first wireless device and a second wireless device comprising:

triggering the unpairing between the first wireless device and the second wireless device and entering a register mode by the second wireless device;

triggering the unpairing between the first wireless device and the second wireless device and entering an enrollee mode by the first wireless device; and

exchanging media access control (MAC) addresses, pairing magic numbers, and pairing indices between the first wireless device and the second wireless device to establish the unpairing between the first wireless device and the second wireless device, wherein the pairing magic numbers are operable to identify the pairing between the first wireless device and the second wireless device, and the pairing indices are operable to launch the MAC addresses, the pairing magic numbers, and the pairing indices.

19. The unpairing method of claim 18, further comprising:

determining whether the first wireless device has been paired by the first wireless device;

aborting the unpairing between the first wireless device and the second wireless device if the first wireless device has not been paired;

or

continuing the unpairing between the first wireless device and the second wireless device if the first wireless device has been paired.

20. The unpairing method of claim 18, the exchanging step comprises:

broadcasting a request-unpairing frame from the second wireless device to the first wireless device, wherein the request-unpairing frame comprises the MAC address and the pairing magic number of the second wireless device, so as to notify the first wireless device that the second wireless device is requesting for the unpairing;

receiving the request-unpairing frame by the first wireless device;

checking the MAC address and the pairing magic number of the second wireless device is valid;

sending a join-unpairing frame from the first wireless device to the second wireless device if the MAC address and the pairing magic number of the second wireless device is valid, wherein the join-unpairing frame comprises the MAC address, the pairing magic number, and the pairing index of the first wireless device, and the MAC address, the pairing magic number, and the pairing index of the second wireless device, so as to notify the second wireless device that the first wireless device joins in the unpairing;

receiving the join-unpairing frame and checking whether the MAC address, the pairing magic number, and the pairing index of the first wireless device is valid by the second wireless device;

sending an unpairing-confirm frame from the second wireless device to the first wireless device, if the MAC address, the pairing magic number, and the pairing index of the first wireless device is valid, wherein the unpairing-confirm frame comprises the MAC address, the pairing magic number, and the pairing index of the first wireless device, and the MAC address, the pairing magic number, and the pairing index of the second wireless device, so as to notify the first wireless device that the second wireless device confirms the unpairing of the first wireless device;

canceling the MAC address, the pairing magic number, and the pairing index of the first wireless device by the second wireless device;

receiving the unpairing-confirm frame by the first wireless device; and

canceling the MAC address, the pairing magic number, and the pairing index of the second wireless device by the first wireless device.