METHOD AND APPARATUS FOR CONFIGURING A WIRELESS DEVICE THROUGH REVERSE ADVERTISING

• US 20090209245A1
• Filed: 04/29/2009
• Published: 08/20/2009
• Est. Priority Date: 03/19/2002
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Cheshire, Stuart D.
• Granted Patent: US 8,306,475 B2
• Time in Patent Office: Days
• US Class Current: 455/419
• CPC Class Codes: G06Q 30/0267 Wireless devices
• CPC Class Codes: G06Q 30/0601 Electronic shopping [e-shopping]
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/10 using broadcasted information

Abstract

One embodiment of the present invention provides a system that uses reverse advertising to configure a new wireless device to join an existing wireless network. During operation, the new wireless device broadcasts an advertisement for itself. In response to the advertisement, the new wireless device receives information from an existing wireless device on the existing wireless network. This information specifies how to join the existing wireless network. Next, the new wireless device uses the information to configure itself to join the existing wireless network.

Claims

1. A method for using reverse advertising to configure a new wireless device to join an existing wireless network, comprising:

broadcasting an advertisement for the new wireless device on a new wireless network, wherein the new wireless network is separate from the existing wireless network;

in response to the advertisement, receiving information from an existing wireless device that is on the existing wireless network, wherein the information specifies how to join the existing wireless network, and wherein receiving the information involves receiving the information from the existing wireless device on the new wireless network; and

using the information to configure the new wireless device to join the existing wireless network.

2. The method of claim 1, wherein broadcasting the advertisement for the new wireless device involves:

advertising the new wireless network from the new wireless device; and

advertising the new wireless device on the new wireless network.

3. The method of claim 2, wherein advertising the new wireless device involves obtaining a link-local address for the new wireless device on the new wireless network.

4. The method of claim 2, wherein receiving the information from the existing wireless device on the existing wireless network involves:

receiving a request to join the new wireless network from the existing wireless device;

allowing the existing wireless device to join the new wireless network; and

receiving information from the existing wireless device specifying how to join the existing wireless network.

5. The method of claim 4, wherein allowing the existing wireless device to join the new wireless network involves obtaining a link-local address for the existing wireless device on the new wireless network.

6. The method of claim 1, wherein the method further comprises receiving an encryption key to facilitate secure communications across the existing wireless network.

7. The method of claim 6, wherein receiving the encryption key involves performing a Diffie-Hellman key exchange to ensure that the encryption key is received securely.

8. The method of claim 1,

wherein the information received from the existing wireless device includes an identifier for the new wireless device;

and

wherein the new wireless devices verifies that the identifier matches a valid identifier for the new wireless device to ensure that the existing wireless device is authorized to send configuration information to the new wireless device.

9. A method for using reverse advertising to configure a new wireless device to join an existing wireless network, comprising:

at an existing wireless device on the existing wireless network, receiving an advertisement from the new wireless device on a new wireless network,

wherein the new wireless network is separate from the existing wireless network;

in response to the advertisement, sending information to the new wireless device specifying how to join the existing wireless network, wherein sending the information involves sending the information to the new wireless device on the new wireless network; and

upon receiving a request from the new wireless device to join the existing wireless network, allowing the new wireless device to join the existing wireless network.

10. The method of claim 9, wherein receiving the advertisement for the new wireless device involves:

receiving an advertisement for the new wireless network from the new wireless device; and

receiving an advertisement for the new wireless device on the new wireless network.

11. The method of claim 10, wherein sending the information specifying how to join the existing wireless network involves:

sending a request to join the new wireless network from the existing wireless device on the existing wireless network; and

after the existing wireless device successfully joins the new wireless network, using the new wireless network to send the information to the new wireless device specifying how to join the existing wireless network.

12. The method of claim 10, further comprising allowing a user of the existing wireless device to select the new wireless network from a list of available wireless networks prior to sending the request to join the new wireless network.

13. A computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method for using reverse advertising to configure a new wireless device to join an existing wireless network, the method comprising:

broadcasting an advertisement for the new wireless device on a new wireless network, wherein the new wireless network is separate from the existing wireless network;

in response to the advertisement, receiving information from an existing wireless device that is on the existing wireless network, wherein the information specifies how to join the existing wireless network, and wherein receiving the information involves receiving the information from the existing wireless device on the new wireless network; and

using the information to configure the new wireless device to join the existing wireless network.

14. The computer-readable storage medium of claim 13, wherein broadcasting the advertisement for the new wireless device involves:

advertising the new wireless network from the new wireless device; and

advertising the new wireless device on the new wireless network.

15. The computer-readable storage medium of claim 14, wherein advertising the new wireless device involves obtaining a link-local address for the new wireless device on the new wireless network.

16. The computer-readable storage medium of claim 14, wherein receiving the information from the existing wireless device on the existing wireless network involves:

receiving a request to join the new wireless network from the existing wireless device;

allowing the existing wireless device to join the new wireless network; and

receiving information from the existing wireless device specifying how to join the existing wireless network.

17. The computer-readable storage medium of claim 16, wherein allowing the existing wireless device to join the new wireless network involves obtaining a link-local address for the existing wireless device on the new wireless network.

18. The computer-readable storage medium of claim 13, wherein the method further comprises receiving an encryption key to facilitate secure communications across the existing wireless network.

19. The computer-readable storage medium of claim 18, wherein receiving the encryption key involves performing a Diffie-Hellman key exchange to ensure that the encryption key is received securely.

20. The computer-readable storage medium of claim 18,

wherein the information received from the existing wireless device includes an identifier for the new wireless device;

and

wherein the new wireless devices verifies that the identifier matches a valid identifier for the new wireless device to ensure that the existing wireless device is authorized to send configuration information to the new wireless device.

21. A computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method for using reverse advertising to configure a new wireless device to join an existing wireless network, the method comprising:

at an existing wireless device on the existing wireless network, receiving an advertisement from the new wireless device on a new wireless network, wherein the new wireless network is separate from the existing wireless network;

in response to the advertisement, sending information to the new wireless device specifying how to join the existing wireless network, wherein sending the information involves sending the information to the new wireless device on the new wireless network; and

upon receiving a request from the new wireless device to join the existing wireless network, allowing the new wireless device to join the existing wireless network.

22. The computer-readable storage medium of claim 21, wherein receiving the advertisement for the new wireless device involves:

receiving an advertisement for the new wireless network from the new wireless device; and

receiving an advertisement for the new wireless device on the new wireless network.

23. The computer-readable storage medium of claim 22, wherein sending the information specifying how to join the existing wireless network involves:

sending a request to join the new wireless network from the existing wireless device on the existing wireless network; and

after the existing wireless device successfully joins the new wireless network, using the new wireless network to send the information to the new wireless device specifying how to join the existing wireless network.

24. The computer-readable storage medium of claim 22, wherein the method further comprises allowing a user of the existing wireless device to select the new wireless network from a list of available wireless networks prior to sending the request to join the new wireless network.

25. An apparatus that uses reverse advertising to configure a new wireless device to join an existing wireless network, comprising:

the new wireless device;

a broadcasting mechanism within the new wireless device that is configured to broadcast an advertisement for the new wireless device on a new wireless network that is separate from the existing wireless network;

a receiving mechanism within the new wireless device that is configured to receive information from an existing wireless device that is on the existing wireless network in response to the advertisement, wherein the information specifies how to join the existing wireless network, and wherein receiving the information involves receiving the information from the existing wireless device on the new wireless network; and

a joining mechanism that is configured to use the information to join the existing wireless network.

26. The apparatus of claim 25, wherein the broadcasting mechanism is configured to:

advertise the new wireless network from the new wireless device; and

to

advertise the new wireless device on the new wireless network.

27. The apparatus of claim 26, wherein the receiving mechanism is configured to:

receive a request to join the new wireless network from the existing wireless device; and

to

receive information from the existing wireless device specifying how to join the existing wireless network.

28. The apparatus of claim 25, wherein the receiving mechanism is configured to receive an encryption key to facilitate secure communications across the existing wireless network.

29. The apparatus of claim 28, wherein the receiving mechanism is configured to perform a Diffie-Hellman key exchange to ensure that the encryption key is received securely.

30. The apparatus of claim 28,

wherein the information received from the existing wireless device includes an identifier for the new wireless device;

and

wherein the joining mechanism is configured to verify that the identifier matches a valid identifier for the new wireless device to ensure that the existing wireless device is authorized to send configuration information to the new wireless device.

31. An apparatus that uses reverse advertising to configure a new wireless device to join an existing wireless network, comprising:

an existing wireless device on the existing wireless network;

a receiving mechanism within the existing wireless device that is configured to receive an advertisement from the new wireless device on a new wireless network, wherein the new wireless network is separate from the existing wireless network;

an initialization mechanism within the existing wireless device, wherein in response to the advertisement, the initialization mechanism is configured to;

send information to the new wireless device specifying how to join the existing wireless network, wherein sending the information involves sending the information to the new wireless device on the new wireless network, and

upon receiving a request from the new wireless device to join the existing wireless network, allow the new wireless device to join the existing wireless network.

32. The apparatus of claim 31, wherein the receiving mechanism is configured to:

receive an advertisement for the new wireless network from the new wireless device; and

to

receive an advertisement for the new wireless device on the new wireless network.

33. The apparatus of claim 32, wherein the initialization mechanism is configured to:

send a request to join the new wireless network from the existing wireless device on the existing wireless network; and

after the existing wireless device successfully joins the new wireless network, to use the new wireless network, to send the information to the new wireless device specifying how to join the existing wireless network.

34. The apparatus of claim 32, further comprising a user interface for the existing wireless device that is configured to allow a user of the existing wireless device to select the new wireless network from a list of available wireless networks prior to sending the request to join the new wireless network.