Discovery of Wi-Fi direct services via discovery probe

• US 9,723,545 B2
• Filed: 04/04/2014
• Issued: 08/01/2017
• Est. Priority Date: 11/01/2013
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Krystad, Peter David, Gix, Brian Gerard, Martineau, Mathew James, Sandhu, Shivraj Singh, Stotland, Inga
• Primary Examiner(s): Chung, Hoon J
• Application Number:
  US14/245,823
• Publication Number:
  US 20150124792A1
• Time in Patent Office: 1,215 Days
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals

Abstract

Methods, systems, and devices are described for Wi-Fi peer-to-peer (P2P) communications. A seeker user equipment (UE) may identify a desired service to be provided via Wi-Fi P2P communication. The seeker UE may broadcast a probe that identifies the desired service. An advertiser UE may receive the probe from the seeker UE. The probe identifies a desired service for the seeker UE that is to be provided via Wi-Fi P2P communication. The advertiser UE may transmit a probe response to the seeker UE only when it is determined that the advertiser UE is capable of providing the identified desired service.

Claims

1. A method for Wi-Fi peer-to-peer (P2P) communication, comprising:

determining a size of a hash of a first identifier corresponding to a desired service based at least in part on an available payload of a discovery probe, the desired service to be provided via Wi-Fi P2P communication;

generating the hash of the first identifier in accordance with the determined size;

including the hash in the discovery probe to identify the desired service;

broadcasting, by a seeker device, the discovery probe that identifies the desired service;

receiving, by the seeker device, a discovery probe response from at least one second device, the discovery probe response including a second identifier corresponding to a service that the at least one second device is capable of providing, the service corresponding to the desired service; and

acquiring the desired service from the at least one second device based at least in part on receiving the discovery probe response.

2. The method of claim 1, wherein the hash of the first identifier is included in an information element (IE) of the discovery probe.

3. The method of claim 1, wherein the first identifier comprises a name of the desired service.

4. The method of claim 1, further comprising:

determining if the second identifier matches the first identifier.

5. The method of claim 4, further comprising:

providing a notification of a match when it is determined that the second identifier matches the first identifier.

6. The method of claim 5, wherein providing the notification includes providing the notification to a user via a user interface of the seeker device.

7. The method of claim 5, wherein providing the notification includes providing the notification to the seeker device via an application.

8. The method of claim 5, wherein the provided notification includes information regarding the at least one second device.

9. The method of claim 1, wherein the second identifier is included in an information element (IE) of the discovery probe response.

10. The method of claim 1, wherein the second identifier comprises a name of the service that the at least one second device is capable of providing.

11. An apparatus for Wi-Fi peer-to-peer (P2P) communication, comprising:

means for generating a hash of a first identifier corresponding to a desired service based at least in part on an available payload of a discovery probe, the desired service to be provided via Wi-Fi P2P communication;

means for broadcasting a discovery probe that identifies the desired service by including the hash in the discovery probe;

means for receiving a discovery probe response from at least one second device, the discovery probe response including a second identifier corresponding to a service that the at least one second device is capable of providing, the service corresponding to the desired service; and

means for acquiring the desired service from the at least one second device based at least in part on receiving the discovery probe response.

12. The apparatus of claim 11, wherein the hash of the first identifier is included in an information element (IE) of the discovery probe.

13. The apparatus of claim 11, wherein the first identifier comprises a name of the desired service.

14. The apparatus of claim 11, further comprising:

means for determining if the second identifier matches the first identifier.

15. The apparatus of claim 14, further comprising:

means for providing a notification of a match when it is determined that the second identifier matches the first identifier.

16. The apparatus of claim 15, wherein the means for providing the notification is configured to provide the notification to a user via a user interface.

17. The apparatus of claim 15, wherein the means for providing the notification is configured to provide the notification via an application.

18. The apparatus of claim 11, wherein the second identifier is included in an information element (IE) of the discovery probe response.

19. The apparatus of claim 11, wherein the second identifier comprises a name of the service that the at least one second device is capable of providing.

20. A user equipment (UE) for Wi-Fi peer-to-peer (P2P) communication, comprising:

at least one processor;

a memory in electronic communication with the at least one processor; and

instructions stored in the memory, the instructions being executable by the at least one processor to;

determine a size of a hash of a first identifier corresponding to a desired service based at least in part on an available payload of a discovery probe, the desired service to be provided via Wi-Fi P2P communication;

generate the hash of the first identifier in accordance with the determined size;

include the hash in the discovery probe to identify the desired service;

broadcast the discovery probe that identifies the desired service;

receive a discovery probe response from at least one second device, the discovery probe response including a second identifier corresponding to a service that the at least one second device is capable of providing, the service corresponding to the desired service; and

acquire the desired service from the at least one second device based at least in part on receiving the discovery probe response.

21. The UE of claim 20, wherein the hash of the first identifier is included in an information element (IE) of the discovery probe.

22. The UE of claim 20, wherein the first identifier comprises a name of the desired service.

23. The UE of claim 20, wherein the instructions are executable by the processor to:

determine if the second identifier matches the first identifier.

24. The UE of claim 23, wherein the instructions are executable by the processor to:

provide a notification of a match when it is determined that the second identifier matches the first identifier.

25. The UE of claim 24, wherein the notification is provided to a user via a user interface.

26. The UE of claim 24, wherein the notification is provided via an application.

27. The UE of claim 24, wherein the provided notification includes information regarding the at least one second device.

28. The UE of claim 20, wherein the second identifier is included in an information element (IE) of the discovery probe response.

29. The UE of claim 20, wherein the second identifier comprises a name of the service that the at least one second device is capable of providing.

30. A computer program product for Wi-Fi peer-to-peer (P2P) communication, the computer program product comprising a non-transitory computer-readable medium storing instructions executable by a processor to:

determine a size of a hash of a first identifier corresponding to a desired service based at least in part on an available payload of a discovery probe, the desired service to be provided via Wi-Fi P2P communication;

generate the hash of the first identifier in accordance with the determined size;

include the hash in the discovery probe to identify the desired service;

broadcast the discovery probe that identifies the desired service;

receive a discovery probe response from at least one second device, the discovery probe response including a second identifier corresponding to a service that the at least one second device is capable of providing, the service corresponding to the desired service; and

acquire the desired service from the at least one second device based at least in part on receiving the discovery probe response.

31. The computer program product of claim 30, wherein the instructions are executable by the processor to:

determine if the second identifier matches the first identifier.

32. The computer program product of claim 31, wherein the instructions are executable by the processor to:

provide a notification of a match when it is determined that the second identifier matches the first identifier.

33. The computer program product of claim 32, wherein the notification is provided to a user via a user interface.

34. The computer program product of claim 32, wherein the notification is provided via an application.

35. The computer program product of claim 32, wherein the provided notification includes information regarding the at least one second device.

36. The computer program product of claim 30, wherein the hash of the first identifier is included in an information element (IE) of the discovery probe.

37. The computer program product of claim 30, wherein the first identifier comprises a name of the desired service.

38. The computer program product of claim 30, wherein the second identifier is included in an information element (IE) of the discovery probe response.

39. The computer program product of claim 30, wherein the second identifier comprises a name of the service that the at least one second device is capable of providing.