Dynamically associated neighbor awareness networking (NAN) discovery windows for fine timing measurement
View Patent ↗Certain embodiments herein relate to a dynamic pre-association between Neighbor Awareness Networking (NAN) discovery windows and fine timing measurement (FTM) communications. A wireless station may trigger an FTM procedure during a NAN discovery window by the transmission of a NAN Service Discovery Frame (SDF). In addition to the FTM communications, an indication of a discovery window for which a subsequent FTM communication is expected to occur is also transmitted. In some embodiments, an FTM range report may also be transmitted with the indication.
1. A neighbor awareness networking (NAN) device for performing a fine timing measurement (FTM) with a peer device, the NAN device comprising memory and processing circuitry configured to:
cause to send a NAN service discovery frame to the peer device, the NAN service discovery frame comprising an indication of a first window associated with the NAN device;
cause to send an FTM request to the peer device during the first window;
receive, from the peer device, an FTM response, wherein at least one of the FTM request or the FTM response comprises an indication of a second window;
receive, from the peer device, during the second window, an FTM frame; and
cause to send an FTM range report to the peer device, the FTM range report comprising an indication of a range based on the FTM frame.
2. The device of claim 1 , wherein the FTM request is a first FTM request, and wherein the memory and processing circuitry are further configured to cause to send, to the peer device, during the second window, a second FTM request.
3. The device of claim 1 , wherein the FTM request is a first FTM request, and wherein the memory and processing circuitry are further configured to receive, from the peer device, during the second window, a second FTM request.
4. The device of claim 1 , wherein the FTM request indicates a request for a single burst session.
5. The device of claim 1 , wherein the memory and processing circuitry are further configured to determine the range, wherein the range indicates a distance between the NAN device and the peer device.
6. The device of claim 1 , wherein the NAN service discovery frame comprises an indication of a channel.
7. The device of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals.
8. The device of claim 7 , further comprising one or more antennas coupled to the transceiver.
9. A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:
receiving, at a first device from a second device, a neighbor awareness networking (NAN) service discovery frame comprising an indication of a first window associated with the second device;
receiving, at the first device from the second device, a fine timing measurement (FTM) request during the first window;
causing to send, to the second device, an FTM response, wherein at least one of the FTM request or the FTM response comprises an indication of a second window; and
causing to send, to the second device during the second window, an FTM frame.
10. The non-transitory computer-readable medium of claim 9 , wherein the FTM request is a first FTM request, and wherein the operations further comprise causing to send, to the second device during the second window, a second FTM request.
11. The non-transitory computer-readable medium of claim 9 , wherein the FTM request is a first FTM request, and wherein the operations further comprise receiving, from the second device during the second window, a second FTM request.
12. The non-transitory computer-readable medium of claim 9 , wherein the FTM request indicates a request for a single burst session.
13. The non-transitory computer-readable medium of claim 9 , wherein the operations further comprise receiving, from the second device, an FTM range report comprising an indication of a range determination based on the FTM frame.
14. The non-transitory computer-readable medium of claim 9 , wherein the NAN service discovery frame comprises an indication of a channel.
15. A method for performing a fine timing measurement (FTM) with a peer device, the method comprising:
causing to send, by one or more processors of a neighbor awareness networking (NAN) device, to the peer device, a NAN service discovery frame comprising an indication of a first window associated with the NAN device;
causing to send, by the one or more processors, to the peer device, an FTM request to the peer device during the first window;
receiving, by the one or more processors, from the peer device, an FTM response, wherein at least one of the FTM request or the FTM response comprises an indication of a second window;
receiving, by the one or more processors, from the peer device during the second window, an FTM frame; and
causing to send, by the one or more processors, an FTM range report to the peer device, the FTM range report comprising an indication of a range based on the FTM frame.
16. The method of claim 15 , wherein the FTM request is a first FTM request, the method further comprising causing to send, to the peer device during the second window, a second FTM request.
17. The method of claim 15 , wherein the FTM request is a first FTM request, the method further comprising receiving, from the peer device during the second window, a second FTM request.
18. The method of claim 15 , wherein the FTM request indicates a request for a single burst session.
19. The method of claim 15 , further comprising determining the range, wherein the range indicates a distance between the NAN device and the peer device.
20. The method of claim 15 , wherein the NAN service discovery frame comprises an indication of a channel.