Traffic advertisement and scheduling in a neighbor aware network data link

• US 9,936,452 B2
• Filed: 07/08/2015
• Issued: 04/03/2018
• Est. Priority Date: 07/09/2014
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Patil, Abhishek Pramod, Abraham, Santosh Paul, Raissinia, Alireza, Cherian, George
• Primary Examiner(s): Pancholi, Rina
• Application Number:
  US14/794,791
• Publication Number:
  US 20160014694A1
• Time in Patent Office: 1,000 Days
• Field of Search: None
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04W 52/0209 in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 56/001 Synchronization between nodes
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method includes receiving a service discovery frame at a first electronic device of a data link of a neighbor aware network (NAN). The service discovery frame may include an attribute identifying a subset of electronic devices of the data link as recipients of data from a second electronic device of the data link during a transmission window or identifying a time period of data announcements and timing information of data transmissions corresponding to the data link. The method also includes determining whether to monitor a wireless network corresponding to the data link during the transmission window based on the attribute.

Claims

1. A method of communicating between electronic devices, the method comprising:

synchronizing a clock at a first electronic device of a data link based on a synchronization operation associated with a first wireless network, the first wireless network associated with service discovery and synchronization within a neighbor aware network (NAN), wherein the NAN includes a first group of electronic devices associated with common discovery windows;

receiving a service discovery frame via the first wireless network at the first electronic device, wherein the service discovery frame includes an attribute identifying a subset of electronic devices of the data link as recipients of data via a second wireless network from a second electronic device of the data link during a transmission window or identifying a time period of data announcements and timing information of data transmissions via the second wireless network, wherein the second wireless network is associated with data sharing by at least one service corresponding to the data link, wherein the data link includes a second group of electronic devices associated with common paging windows, and wherein the first group of electronic devices includes the second group of electronic devices; and

determining, based on the attribute, whether to monitor the second wireless network during the transmission window or during at least a portion of the time period, wherein timing of the transmission window or the time period is determined based on the synchronized clock.

2. The method of claim 1, wherein the attribute is a service descriptor attribute, wherein a service response filter field of the service descriptor attribute identifies the subset of electronic devices of the data link as recipients of the data from the second electronic device of the data link during the transmission window, and wherein determining whether to monitor the second wireless network is based on the service response filter field.

3. The method of claim 2, wherein the service response filter field identifies a Bloom filter, and wherein determining to monitor the second wireless network is based on determining that the first electronic device is identified as a recipient of the data by the Bloom filter.

4. The method of claim 3, further comprising:

transmitting an acknowledgement via the first wireless network to the second electronic device in response to determining that the first electronic device is indicated as the recipient of the data;

receiving a negative-acknowledgement (NACK) via the first wireless network from the second electronic device responsive to transmitting the acknowledgement; and

transitioning the first electronic device from an active operating mode to a low-power operating mode in response to receiving the NACK.

5. The method of claim 2, wherein the service descriptor attribute indicates a data link attribute corresponding to the data link, and wherein the service descriptor attribute indicates a second attribute including a traffic indicator.

6. The method of claim 5, wherein the traffic indicator includes a Bloom filter.

7. The method of claim 1, further comprising monitoring, at the first electronic device, the second wireless network for the data based on determining that the first electronic device is included in the subset of electronic devices.

8. The method of claim 1, wherein the attribute is descriptive of a service offered by the second electronic device via the data link, wherein the service discovery frame includes a second attribute descriptive of one or more features corresponding to the data link, wherein the attribute includes an indicator identifying the second attribute, and wherein the second attribute defines one or more parameters of one or more communication windows corresponding to the data link.

9. The method of claim 8, wherein the second attribute indicates a paging window repetition rate corresponding to the data link.

10. The method of claim 9, further comprising remaining in a low power operating mode at the first electronic device during a second transmission window in response to the first electronic device failing to participate in a traffic session during the transmission window, wherein the second transmission window does not include a paging window.

11. The method of claim 9, further comprising remaining in an active operating mode at the first electronic device during a second transmission window in response to the first electronic device participating in a traffic session during the transmission window, wherein the second transmission window does not include a paging window.

12. The method of claim 9, wherein the paging window repetition rate comprises a number NUM_PW, and wherein paging windows are defined for one transmission window of each NUM_PW transmission windows between consecutive discovery windows.

13. The method of claim 12, further comprising maintaining the first electronic device in an active operating mode during an entirety of a data link time block corresponding to the data link if the number NUM_PW is zero.

14. The method of claim 13, further comprising transitioning the first electronic device into a low-power operating mode based on a value of a MORE bit included in the data.

15. The method of claim 8, wherein the service discovery frame further includes a third attribute descriptive of the service and a fourth attribute descriptive of one or more features corresponding to a second data link of the NAN, wherein the third attribute includes a second indicator identifying the fourth attribute, and wherein the fourth attribute defines one or more parameters of one or more communication windows corresponding to data communications via a third wireless network corresponding to the second data link.

16. The method of claim 8, wherein the second attribute defines a discovery window offset, a transmission window offset, a transmission window size, a paging window size, a transmission window repetition indicator, a network heartbeat, or any combination thereof.

17. The method of claim 8, wherein the service discovery frame is included in a NAN beacon message.

18. The method of claim 8, wherein the service discovery frame is included in a NAN service discovery message.

19. The method of claim 1, wherein the attribute includes a service identifier identifying a service offered by the second electronic device and a first instance identifier identifying a first instance of the service.

20. The method of claim 19, further comprising receiving a second service discovery frame via the first wireless network, wherein the second service discovery frame includes a second attribute that includes the service identifier and a second instance identifier identifying a second instance of the service.

21. The method of claim 1, wherein the attribute is a data link attribute corresponding to the data link, wherein a data link control field of the data link attribute identifies the time period of the data announcements and the timing information, and wherein the second wireless network is monitored for at least one data frame from the second electronic device during one or more time periods identified by the timing information.

22. The method of claim 21, further comprising determining the time period of the data announcements based on a first set of bits of the data link control field.

23. The method of claim 1, wherein the service discovery frame is received during a discovery window corresponding to the NAN, wherein at least a portion of the data is received during the transmission window, wherein the discovery window includes a first time period designated for discovery and synchronization operations within the NAN, and wherein the transmission window includes a second time period designated for data communications associated with one or more services provided by one or more electronic devices of the data link.

24. The method of claim 1, further comprising transitioning the first electronic device into a low-power operating mode based on the first wireless network being idle for a threshold period of time.

25. The method of claim 1, wherein the synchronization operation comprises receiving a synchronization beacon from an electronic device of the NAN via the first wireless network, and wherein the clock is synchronized based on the synchronization beacon.

26. The method of claim 1, further comprising, prior to synchronizing the clock, performing one or more association operations at the first electronic device with respect to an electronic device of the NAN to cause the first electronic device to join the NAN.

27. The method of claim 1, wherein the first wireless network comprises a first wireless channel corresponding to the NAN, and wherein the second wireless network comprises a second wireless channel corresponding to the data link.

28. An apparatus comprising:

a processor; and

a memory coupled to the processor, wherein the memory stores instructions executable by the processor to perform operations comprising;

synchronizing a clock at a first electronic device of a data link based on a synchronization operation associated with a first wireless network, the first wireless network associated with service discovery and synchronization within a neighbor aware network (NAN), wherein the NAN includes a first group of electronic devices associated with common discovery windows;

receiving a service discovery frame via the first wireless network at the first electronic device, wherein the service discovery frame includes an attribute identifying a subset of electronic devices of the data link as recipients of data via a second wireless network from a second electronic device of the data link during a transmission window or identifying a time period of data announcements and timing information of data transmissions via the second wireless network, wherein the second wireless network is associated with data sharing by at least one service corresponding to the data link, wherein the data link includes a second group of electronic devices associated with common paging windows, and wherein the first group of electronic devices includes the second group of electronic devices; and

determining, based on the attribute, whether to monitor the second wireless network during the transmission window or during at least a portion of the time period, wherein timing of the transmission window or the time period is determined based on the synchronized clock.

29. The apparatus of claim 28, wherein the attribute is a service descriptor attribute, wherein a service response filter field of the service descriptor attribute identifies the subset of electronic devices of the data link as recipients of the data from the second electronic device of the data link during the transmission window, and wherein determining whether to monitor the second wireless network is based on the service response filter field.

30. The apparatus of claim 29, wherein the operations further comprise monitoring, at the first electronic device, the second wireless network for the data based on determining that the first electronic device is included in the subset of electronic devices.

31. The apparatus of claim 30, wherein the service response filter field identifies a Bloom filter, and wherein determining to monitor the second wireless network is based on determining that the first electronic device is identified as a recipient of the data by the Bloom filter.

32. The apparatus of claim 31, wherein the operations further comprise:

transmitting an acknowledgement via the first wireless network to the second electronic device in response to determining that the first electronic device is indicated as the recipient of the data;

receiving a negative-acknowledgement (NACK) via the first wireless network from the second electronic device responsive to transmitting the acknowledgement; and

transitioning the first electronic device from an active operating mode to a low-power operating mode in response to receiving the NACK.

33. The apparatus of claim 29, wherein the service descriptor attribute indicates a data link attribute corresponding to the data link, and wherein the service descriptor attribute indicates a second attribute including a traffic indicator.

34. The apparatus of claim 33, wherein the traffic indicator includes a traffic indication map (TIM).

35. The apparatus of claim 28, wherein the attribute is descriptive of a service offered by the second electronic device via the data link, wherein the service discovery frame includes a second attribute descriptive of one or more features corresponding to the data link, wherein the attribute includes an indicator identifying the second attribute, and wherein the second attribute defines one or more parameters of one or more communication windows corresponding to the data link.

36. The apparatus of claim 35, wherein the second attribute indicates a paging window repetition rate corresponding to the data link.

37. The apparatus of claim 36, wherein the operations further comprise remaining in a low power operating mode at the first electronic device during a second transmission window in response to the first electronic device failing to participate in a traffic session during the transmission window, and wherein the second transmission window does not include a paging window.

38. The apparatus of claim 36, wherein the operations further comprise remaining in an active operating mode at the first electronic device during a second transmission window in response to the first electronic device participating in a traffic session during the transmission window, and wherein the second transmission window does not include a paging window.

39. The apparatus of claim 36, wherein the paging window repetition rate comprises a number NUM_PW, and wherein paging windows are defined for one transmission window of each NUM_PW transmission windows between consecutive discovery windows.

40. The apparatus of claim 39, wherein the operations further comprise maintaining the first electronic device in an active operating mode during an entirety of a data link time block corresponding to the data link if the number NUM_PW is zero.

41. The apparatus of claim 40, wherein the operations further comprise transitioning the first electronic device into a low-power operating mode based on an end-of-service-period (EOSP) bit included in the data.

42. The apparatus of claim 35, wherein the service discovery frame further includes a third attribute descriptive of the service and a fourth attribute descriptive of one or more features corresponding to a second data link of the NAN, wherein the third attribute includes a second indicator identifying the fourth attribute, and wherein the fourth attribute defines one or more parameters of one or more communication windows corresponding to data communications via a third wireless network corresponding to the second data link.

43. The apparatus of claim 35, wherein the second attribute defines a discovery window offset, a transmission window offset, a transmission window size, a paging window size, a transmission window repetition indicator, a network heartbeat, or any combination thereof.

44. The apparatus of claim 35, wherein the service discovery frame is included in a NAN beacon message or a NAN service discovery message.

45. The apparatus of claim 28, wherein the attribute includes a service identifier identifying a service offered by the second electronic device and a first instance identifier identifying a first instance of the service, wherein the operations further comprise receiving a second service discovery frame via the first wireless network, and wherein the second service discovery frame includes a second attribute that includes the service identifier and a second instance identifier identifying a second instance of the service.

46. The apparatus of claim 28, wherein the attribute is a data link attribute corresponding to the data link, wherein a data link control field of the data link attribute identifies the time period of the data announcements and the timing information, and wherein the second wireless network is monitored for at least one data frame from the second electronic device during one or more time periods identified by the Liming information.

47. The apparatus of claim 46, wherein the operations further comprise determining the time period of the data announcements based on a first set of bits of the data link control field.

48. The apparatus of claim 28, further comprising:

a receiver configured to receive the service discovery frame via the first wireless network; and

a transmitter configured to transmit an acknowledgement via the first wireless network in response to receipt of the service discovery frame.

49. An apparatus comprising:

means for synchronizing a clock at a first electronic device of a data link based on a synchronization operation associated with a first wireless network, the first wireless network associated with service discovery and synchronization within a neighbor aware network (NAN), wherein the NAN includes a first group of electronic devices associated with common discovery windows;

means for receiving a service discovery frame via the first wireless network at the first electronic device, wherein the service discovery frame includes an attribute identifying a subset of electronic devices of the data link as recipients of data via a second wireless network from a second electronic device of the data link during a transmission window or identifying a time period of data announcements and timing information of data transmissions via the second wireless network, wherein the second wireless network is associated with data sharing by at least one service corresponding to the data link, wherein the data link includes a second group of electronic devices associated with common paging windows, and wherein the first group of electronic devices includes the second group of electronic devices; and

means for determining, based on the attribute, whether to monitor the second wireless network during the transmission window or during at least a portion of the time period, wherein timing of the transmission window or the time period is determined based on the synchronized clock.

50. The apparatus of claim 49, further comprising means for transmitting an acknowledgement via the first wireless network in response to receiving the service discovery frame.

51. A non-transitory computer readable medium storing instructions that, when executed by a processor, cause the processor to:

synchronize a clock at a first electronic device of a data link based on a synchronization operation associated with a first wireless network, to the first wireless network associated with service discovery and synchronization within a neighbor aware network (NAN), wherein the NAN includes a first group of electronic devices associated with common discovery windows;

receive a service discovery frame via the first wireless network at the first electronic device, wherein the service discovery frame includes an attribute identifying a subset of electronic devices of the data link as recipients of data via a second wireless network from a second electronic device of the data link during a transmission window or identifying a time period of data announcements and timing information of data transmissions via the second wireless network, wherein the second wireless network is associated with data sharing by at least one service corresponding to the data link, wherein the data link includes a second group of electronic devices associated with common paging windows, and wherein the first group of electronic devices includes the second group of electronic devices; and

determine, based on the attribute, whether to monitor the second wireless network during the transmission window or during at least a portion of the time period, wherein timing of the transmission window or the time period is determined based on the synchronized clock.

52. The non-transitory computer readable medium of claim 51, wherein the instructions, when executed by the processor, cause the processor to monitor the second wireless network during the transmission window for at least one data transmission.