Radio frequency exposure estimation with radar for mobile devices

A method for exposure level estimation, comprising:

• transmitting (i) radar signals for object detection and (ii) communication signals for wireless communication operations;
• identifying a location of an object relative to an electronic device within a first time duration based on reflections of the radar signals, the first time duration including a previous time until a current time;
• identifying instantaneous power densities corresponding to the location of the object for each time instance of multiple time instances during the first time duration;
• and
• determining a radio frequency (RF) exposure measurement associated with the object based on the identified instantaneous power densities and the location of the object over the first time duration, the RF exposure measurement accumulated over the first time duration;
• determining a power density budget over a second time duration based on a comparison of the RF exposure measurement to an RF exposure threshold, the second time duration including the current time until a future time;
• and
• modifying the wireless communication operations for the second time duration based on the power density budget.

A non-transitory computer readable medium embodying a computer program, the computer program comprising computer readable program code that, when executed by a processor of an electronic device, causes the processor to:

• transmit (i) radar signals for object detection and (ii) communication signals for wireless communication operations;
• identify a location of an object relative to the electronic device within a first time duration based on reflections of the radar signals, the first time duration including a previous time until a current time;
• identify instantaneous power densities corresponding to the location of the object for each time instance of multiple time instances during the first time duration;
• determine a radio frequency (RF) exposure measurement associated with the object based on the identified instantaneous power densities and the location of the object over the first time duration, the RF exposure measurement accumulated over the first time duration;
• determine a power density budget over a second time duration based on a comparison of the RF exposure measurement to an RF exposure threshold, the second time duration including the current time until a future time;
• and
• modify the wireless communication operations for the second time duration based on the power density budget.