Methods and apparatus for fine timing measurement with frequency domain processing

A System-on-Chip (SoC) comprising:

• a wireless communication controller;
• a hardware-based processor configured to implement frequency domain data processing;
• and
• a fine timing measurement (FTM) manager configured to:
• receive, via the wireless communication controller, a frame transmitted by a remote device through a wireless medium;
• determine a frequency power of the frame;
• determine a linear phase of the frame;
• determine, based on the frequency power and the linear phase of the frame, a degree to which the frame is affected by multipath propagation in the wireless medium;
• and
• compensate, based on the degree to which the frame is affected by the multipath propagation, a time of arrival calculation for the frame to provide a compensated time of arrival for the frame.

A non-transitory computer-readable storage media comprising instructions that, responsive to execution by a hardware-based processor, implement a fine timing measurement (FTM) manager to:

• receive, via a wireless communication controller associated with the hardware-based processor, a frame transmitted by a remote device through a wireless medium;
• determine a frequency power of the frame;
• determine a linear phase of the frame;
• determine, based on the frequency power and the linear phase of the frame, a degree to which the frame is affected by multipath propagation in the wireless medium;
• and
• compensate, based on the degree to which the frame is affected by the multipath propagation, a time of arrival calculation for the frame to provide a compensated time of arrival for the frame.