Evaluating radio frequency (RF) exposure in real time

A method implemented in a wireless device, comprising:

• determining a specific absorption rate (SAR) distribution for a first wireless communication technology;
• determining a power density (PD) distribution for a second wireless communication technology;
• combining the SAR distribution and the PD distribution to generate a combined RF exposure distribution;
• determining at least one first maximum allowable power level and at least one second maximum allowable power level for a future time slot based on the combined RF exposure distribution;
• setting at least one transmission power limit for a first transmitter in the future time slot based on the at least one first maximum allowable power level;
• and
• setting at least one transmission power limit for a second transmitter in the future time slot based on the at least one second maximum allowable power level.

A wireless device, comprising:

• a transmitter;
• a processor coupled to the transmitter, wherein the processor is configured to:
• determine a specific absorption rate (SAR) distribution for a first wireless communication technology;
• determine a power density (PD) distribution for a second wireless communication technology;
• combine the SAR distribution and the PD distribution to generate a combined RF exposure distribution;
• determine a maximum allowable time-average power level for a future time slot based on the combined RF exposure distribution, wherein the future time slot comprises multiple sub-time slots;
• determine a maximum allowable power level for each of the multiple sub-time slots based on the maximum allowable time-average power level for the future time slot;
• and
• set a transmission power limit for the transmitter in each of the sub-time slots based on the respective maximum allowable power level.

A wireless device, comprising:

• a transmitter;
• a processor coupled to the transmitter, wherein the processor is configured to:
• determine a specific absorption rate (SAR) distribution for a first wireless communication technology;
• determine a power density (PD) distribution for a second wireless communication technology;
• combine the SAR distribution and the PD distribution to generate a combined RF exposure distribution;
• determine a PD limit for a future time slot based on the combined RF exposure distribution, wherein the future time slot comprises multiple sub-time slots;
• determine a maximum allowable power level for each of the multiple sub-time slots based on the PD limit for the future time slot;
• and
• set a transmission power limit for the transmitter in each of the sub-time slots based on the respective maximum allowable power level.