Systems and methods for time domain channel representation information for wi-fi sensing

A method for motion sensing carried out by a sensing device including a transmitting antenna, a receiving antenna, and at least one processor configured to execute instructions, the method comprising:

• obtaining, by the at least one processor, a sensing measurement based on a training sensing transmission;
• generating, by the at least one processor, a time domain representation of the sensing measurement;
• selecting, by the at least one processor, a candidate number of time domain pulses from the time domain representation of the sensing measurement;
• creating a reconstructed filtered time domain representation;
• generating, by the at least one processor, a frequency domain representation of the reconstructed filtered time domain representation;
• determining, by the at least one processor, an error between the sensing measurement and the frequency domain representation of the reconstructed filtered time domain representation;
• updating the candidate number according to the error.

A system for motion sensing, the system comprising:

• a sensing receiver including a transmitting antenna, a receiving antenna, and at least one processor configured to execute instructions for:
• receiving, by the at least one processor, a channel representation information configuration comprising a minimum amplitude mask;
• receiving, by the at least one processor, a sensing transmission;
• obtaining, by the at least one processor, a sensing measurement based on the sensing transmission;
• obtaining, by the at least one processor, time domain representation channel information associated with the sensing measurement;
• selecting, by the at least one processor, one or more time domain pulses of the time domain channel representation information wherein the number of selected time domain pulses is variable and determined according to the minimum amplitude mask and the time domain channel representation information of the sensing measurement;
• communicating, by the at least one processor, to the sensing algorithm manager for use in determining motion or movement, the one or more selected time domain pulses.