Mobile Phone User Exposure Assessment to UMTS and LTE Signals at Mobile Data Turn on by Applying an Original Method

What is it about?

The quantification of the realistic electromagnetic exposure was done by offering a complementary, non-standardized method that enables a comprehensive dosimetric understanding of radiation impact for real life UMTS and LTE signals measured at mobile data turn on. The paper presents some preliminary results of mobile phone user exposure assessment at mobile data transmission start by making use of an original procedure that enables the calculus of the radiated energy of the signal and the duty cycle. Our results demonstrate that higher duty cycles are encountered and more than a third of the total radiated energy is dissipated within the first minute after mobile data is switched on for both UMTS and LTE technologies. Authors expect increased exposure level if other application services are launched within this time frame. Moreover, special attention should be paid to user exposure assessment in the case of active call services with mobile data turned on. These two parameters prove to be a useful complementary tool, which besides SAR that is presently the unique standardized metrics in dosimetry, gives a more comprehensive view knowledge about the human exposure to mobile phones radiation

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