Communication between devices of a neighbor aware network

Patent metadata

Field	Value
Publication number	US-2016112987-A1
Application number	US-201514883523-A
Country	US
Kind code	A1
Filing date	Oct 14, 2015
Priority date	Oct 16, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

A method includes generating a paging message at a first device of a data link group of a neighbor aware network (NAN). The paging message includes a paged device list. The paged device list identifies a subset of devices of the data link group, the subset of devices scheduled to receive data from the first device during a transmission window. The paging message includes a receiver address field having a particular receiver address value. The method also includes transmitting, during the paging window, the paging message from to at least one device of the data link group other than the first device.

First claim

What is claimed is:

1 . A method of communication comprising:
generating a paging message at a first device of a data link group of a neighbor aware network (NAN), wherein the paging message includes a paged device list, wherein the paged device list identifies a subset of devices of the data link group, the subset of devices scheduled to receive data from the first device during a transmission window, and wherein the paging message includes a receiver address field having a particular receiver address value; and transmitting, during a paging window, the paging message to at least one device of the data link group other than the first device.

2 . The method of claim 1 , further comprising sending a request to send (RTS) frame to a second device prior to sending the paging message, wherein the second device is included in the subset of devices.

3 . The method of claim 2 , further comprising sending the paging message to the second device in response to receiving a clear to send (CTS) frame from the second device, the CTS frame received within a short interframe space (SIFS) period.

4 . The method of claim 3 , wherein, based on the second device transmitting the CTS frame, the paging message is a multicast message, and wherein the paging message includes a second receiver address having a multicast address.

5 . The method of claim 2 , further comprising sending a second RTS frame to a third device in response to determining that no clear to send (CTS) frame has been received from the second device, wherein the third device is included in the subset of devices, and wherein the paging message is transmitted to the second device and to the third device in response to receiving a second CTS frame from the third device within a second SIFS period.

6 . The method of claim 1 , wherein the particular receiver address value includes at least one of a NAN cluster ID related to the NAN, a group identifier related to the data link group, a value defined by an Institute of Electrical and Electronics Engineers (IEEE) standard, and a value defined by a Wi-Fi Alliance specification.

7 . The method of claim 1 , further comprising receiving an acknowledgment from a second device of the data link group in response to sending the paging message.

8 . The method of claim 7 , wherein the second device is distinct from the subset of devices.

9 . The method of claim 1 , further comprising receiving multiple acknowledgments from multiple devices of the data link group in response to sending the paging message, wherein the multiple acknowledgments have the same waveform and are received as a multipath transmission if the multiple devices generate the multiple acknowledgments based on the same scrambling seed.

10 . The method of claim 1 , further comprising:
receiving multiple acknowledgments from multiple devices of the data link group in response to sending the paging message; and detecting receipt of multiple acknowledgments in response to detecting received waveform energy that exceeds a threshold, wherein the received waveform energy is detected within a short interframe space (SIFS) period, and wherein the multiple acknowledgments are generated based on different scrambling seeds.

11 . The method of claim 1 , wherein the paging message includes a first attribute, the first attribute including the paged device list, and wherein the paged device list includes at least one of a traffic indication map (TIM), a Bloom filter, and a list of media access control (MAC) addresses.

12 . The method of claim 11 , further comprising determining a type of traffic corresponding to the data based on a traffic type indicator included in a paged device list control field of the first attribute, wherein the traffic type indicator identifies a quality of service (QoS) category corresponding to the data.

13 . The method of claim 11 , wherein the first attribute includes a page attribute, and wherein the page attribute includes a page control field indicating a number of paged device lists included in the page attribute.

14 . The method of claim 11 , wherein the first attribute includes a page attribute, wherein the page attribute includes a particular field that indicates a type of data structure that indicates the paged device list, and wherein the page attribute includes a traffic indicator identifying a type of traffic corresponding to a first portion of the data.

15 . The method of claim 11 , wherein the first attribute includes a traffic announcement attribute, and wherein the traffic announcement attribute includes a type length value (TLV) field that includes a representation of paged devices.

16 . The method of claim 1 , further comprising:
after sending the paging message, receive trigger messages from a plurality of devices of the subset of devices; determining that a size of the transmission window is insufficient to send data to each device of the plurality of devices; and sending acknowledgements of the trigger messages based on the determining that the size of the transmission window is insufficient.

17 . An apparatus comprising:
a processor; and a memory coupled to the processor, wherein the memory stores instructions that are executable by the processor to perform operations comprising:
generating a paging message, wherein the paging message includes a paged device list, wherein the paged device list identifies a subset of devices of a data link group of a neighbor aware network (NAN), the subset of devices scheduled to receive data during a transmission window, and wherein the paging message includes a receiver address field having a particular receiver address value; and
initiating transmission, during a paging window, of the paging message to at least one device of the data link group.

18 . The apparatus of claim 17 , wherein the paging message includes a multicast indicator.

19 . The apparatus of claim 17 , wherein the paging message comprises at least one of a service discovery frame (SDF), a management frame, and an action frame.

20 . The apparatus of claim 17 wherein the operations further comprise receiving a trigger frame from a second device of the data link group, and wherein the trigger frame indicates that the second device is scheduled to be in an active operating mode during the transmission window.

21 . A method of communication comprising:
monitoring, at a first device of a data link group of a neighbor aware network (NAN), a wireless network during a paging window; and receiving, at the first device, a paging message from a second device of the data link group during the paging window, wherein the paging message includes a paged device list, wherein the paged device list identifies a subset of devices of the data link group, the subset of devices scheduled to receive data from the second device during a transmission window, and wherein the paging message includes a receiver address field having a particular receiver address value.

22 . The method of claim 21 , further comprising:
processing the paged device list included in an attribute of the paging message to determine whether the first device is included in the subset of devices; and transmitting a trigger frame from the first device to the second device upon determining that the first device is included in the subset of devices.

23 . The method of claim 22 , further comprising transmitting the trigger frame at a beginning of a data window.

Assignees

• Qualcomm Inc

Inventors

• Patil Abhishek Pramod
• Abraham Santosh Paul
• Cherian George
• Raissinia Alireza
• Cho James
• Frederiks Guido

Classifications

• H04W68/02 Primary

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

• H04W48/12 Primary

  using downlink control channel · CPC title

• H04W76/023

  Electricity · mapped topic

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W8/005

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