Traffic advertisement and scheduling in a neighbor aware network data link

Patent metadata

Field	Value
Publication number	US-2016014694-A1
Application number	US-201514794791-A
Country	US
Kind code	A1
Filing date	Jul 8, 2015
Priority date	Jul 9, 2014
Publication date	Jan 14, 2016
Grant date	—

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.

First claim

What is claimed is:

1 . A method of communicating between electronic devices, the method comprising:
receiving a service discovery frame at a first electronic device of a data link of a neighbor aware network (NAN), wherein the service discovery frame includes 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; and determining whether to monitor a wireless network corresponding to the data link during the transmission window based on the attribute.

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 wireless network is based on the service response filter field.

3 . The method of claim 2 , further comprising monitoring, at the first electronic device, the wireless network for the data based on determining that the first electronic device is included in the subset of electronic devices.

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

5 . The method of claim 4 , further comprising:
transmitting an acknowledgement 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) from the second electronic device; and transitioning the first electronic device from an active operating mode to a low-power operating mode in response to receiving the NACK.

6 . 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.

7 . The method of claim 6 , wherein the traffic indicator includes a traffic indication map (TIM), a Bloom filter, or a list of media access control (MAC) addresses.

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 , wherein at least a first transmission window and a second transmission window correspond to the data link, and wherein the first transmission window includes a first paging window and the second transmission window does not include a paging window.

11 . The method of claim 10 , further comprising remaining in a low power operating mode at the first electronic device during the second transmission window if the first electronic device does not participate in a traffic session during the first transmission window.

12 . The method of claim 10 , further comprising remaining in an active operating mode at the first electronic device during the second transmission window if the first electronic device participates in a traffic session during the first transmission window.

13 . 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.

14 . The method of claim 13 , 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.

15 . The method of claim 14 , further comprising transitioning the first electronic device into a low-power operating mode based on a MORE bit included in the data, an end-of-service-period (EOSP) bit included in the data, or idle time detection of the wireless network.

16 . 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 the second data link.

17 . The method of claim 16 , wherein the attribute includes a service identifier identifying the service, wherein the attribute further includes a first instance identifier identifying a first instance of the service, and wherein the second attribute includes the service identifier and a second instance identifier identifying a second instance of the service.

18 . The method of claim 17 , wherein the second attribute indicates a first paging window repetition rate corresponding to the data link, and wherein the fourth attribute indicates a second paging window repetition rate corresponding to the second data link, the first paging window repetition rate different from the second paging window repetition rate.

19 . 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.

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

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

22 . 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 where the wireless network is monitored for at least one data frame from the second electronic device during the transmission window, the transmission window determined based on the data link attribute.

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

24 . The method of claim 23 , further comprising determining the timing information based on the first set of bits and based on a second set of bits of the data link control field.

25 . The method of claim 22 , wherein the wireless network is reserved for data transmission within the data link.

26 . An apparatus comprising:
a processor; and a memory coupled to the processor, wherein the memory stores instructions executable by the processor to perform operations comprisi

Assignees

• Qualcomm Inc

Inventors

• Patil Abhishek Pramod
• Abraham Santosh Paul
• Raissinia Alireza
• Cherian George

Classifications

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04W8/005 Primary

  Discovery of network devices, e.g. terminals · CPC title

• H04W68/02

  Arrangements for increasing efficiency of notification or paging channel · CPC title

• H04W52/0216 Primary

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• H04W56/001

  Synchronization between nodes · CPC title