Channel granularity for frequency modulated continuous waveform-based channel estimation

A network entity, comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the network entity to:
• transmit a control message comprising a trigger for a frequency modulated continuous waveform-based channel estimation procedure;
• transmit, via a channel, a frequency modulated continuous waveform signal;
• and
• receive, based at least in part on the frequency modulated continuous waveform-based channel estimation procedure, a channel estimation report comprising a set of one or more channel parameters, the channel estimation report associated with a subband granularity, wherein the channel estimation report is based at least in part on the frequency modulated continuous waveform signal, a measured delay associated with the channel, and a measured Doppler-based frequency shift associated with the channel.

A method for wireless communication at a user equipment (UE), comprising:

• receiving a control message comprising a trigger for a frequency modulated continuous waveform-based channel estimation procedure;
• receiving, via a channel, a frequency modulated continuous waveform signal;
• estimating the channel, responsive to the trigger, with a subband granularity as part of the frequency modulated continuous waveform-based channel estimation procedure, estimation of the channel based at least in part on the frequency modulated continuous waveform signal, a measured delay associated with the channel, and a measured Doppler-based frequency shift associated with the channel;
• and
• transmitting a channel estimation report comprising a set of one or more channel parameters determined via the estimation of the channel, the channel estimation report associated with the subband granularity.