Traffic advertisement and scheduling in a neighbor aware network data link

Patent metadata

Field	Value
Publication number	US-2016014693-A1
Application number	US-201514794788-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 generating 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 the first electronic device during a transmission window or identifying a time period corresponding to data announcements and timing information of data transmissions corresponding to the data link. The method further includes transmitting the service discovery frame to electronic devices other than the first electronic device.

First claim

What is claimed is:

1 . A method of communicating between electronic devices, the method comprising:
generating 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 the first electronic device during a transmission window or identifying a time period corresponding to data announcements and timing information of data transmissions corresponding to the data link; and transmitting the service discovery frame to electronic devices other than the first electronic device.

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 first electronic device during the transmission window, wherein the service discovery frame is transmitted during a discovery window of the NAN, and wherein the NAN includes the subset of electronic devices of the data link.

3 . The method of claim 2 , further comprising transmitting at least a portion of the data to a second electronic device of the data link via a wireless network corresponding to the data link during the transmission window.

4 . The method of claim 3 , wherein the first electronic device is included in a second data link of the NAN, wherein the service discovery frame further includes a second service descriptor attribute, and wherein a second service response filter field of the second service descriptor attribute identifies a second subset of electronic devices of the second data link as recipients of second data.

5 . The method of claim 4 , further comprising transmitting at least a portion of the second data to a third electronic device of the second data link via a second wireless network during the transmission window, wherein the second wireless network corresponds to the second data link, and wherein the second subset of electronic devices includes the third electronic device.

6 . The method of claim 2 , further comprising:
receiving an acknowledgement from a second electronic device responsive to the service discovery frame; and transmitting a negative-acknowledgement (NACK) to the second electronic device based on determining the second electronic device is not a recipient of the data.

7 . 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 for the data link.

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

9 . The method of claim 2 , wherein the service response filter field identifies a Bloom filter, wherein the Bloom filter identifies the subset of electronic devices as recipients of the data, wherein a service response filter control field of the service response filter field includes a Bloom filter index indicating a set of hash functions corresponding to the Bloom filter, and wherein a size of the Bloom filter is selected based on a target false positive percentage corresponding to the Bloom filter.

10 . The method of claim 1 , wherein the attribute is descriptive of a service offered by the first 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 and defining one or more parameters of one or more communication windows corresponding to the data link, and wherein the attribute includes an indicator identifying the second attribute.

11 . The method of claim 10 , wherein the one or more communication windows include paging windows, transmission windows, or both.

12 . The method of claim 10 , wherein the one or more features include a data link channel corresponding to the data link, a group identifier corresponding to the data link, the one or more communication windows corresponding to the data link, or a combination thereof.

13 . The method of claim 10 , wherein the indicator comprises a bitmap.

14 . The method of claim 10 , wherein a group of bits of a control field of the second attribute defines the one or more parameters.

15 . The method of claim 10 , wherein the attribute includes a service identifier identifying the service, and wherein the attribute further includes a first instance identifier identifying a first instance of the service.

16 . The method of claim 15 , wherein the service discovery frame further includes a third attribute descriptive of the service, and wherein the third attribute includes the service identifier and a second instance identifier identifying a second instance of the service.

17 . The method of claim 16 , wherein the third attribute includes a second indicator identifying the second attribute.

18 . 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 and the timing information, and wherein the service discovery frame is transmitted to the electronic devices of the data link during a discovery window.

19 . The method of claim 18 , wherein a subset of bits of the data link control field identifies the time period as one of a first paging window corresponding to a data link, a second paging window corresponding to a NAN, or another discovery window corresponding to another service discovery frame.

20 . The method of claim 19 , wherein the timing information corresponds to the subset of bits and a second subset of bits of the data link control field.

21 . The method of claim 20 , wherein, if the subset of bits identifies the time period as the first paging window, the timing information includes a duration of the first paging window.

22 . The method of claim 20 wherein, if the subset of bits identifies the time period as the second paging window, the timing information includes a number of repetitions of the second paging window between two consecutive discovery windows of the NAN.

23 . The method of claim 20 , wherein, if the subset of bits identifies the time period as the discovery window, the timing information includes a duration of time that data recipient assignments identified in a service response filter field of a service descriptor attribute of the service discovery frame are repeated.

24 . The method of claim 18 , wherein the data link attribute includes a field indicating a periodicity of transmission windows designated for multicast traffic.

25 . The method of claim 24 , further comprising transmitting the data to electronic devices of the data link during a transmission window designated for multicast traffic, wherein the transmission window does not include a paging window.

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 comprising:
generating 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

Assignees

• Qualcomm Inc

Inventors

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

Classifications

• H04W72/30

  Resource management for broadcast services · CPC title

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W72/005

  Electricity · mapped topic

• H04W52/0216 Primary

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

• H04L12/1881

  with schedule organisation, e.g. priority, sequence management · CPC title