Dominance of Smartphone Exposure in 5G Mobile Networks

The deployment of 5G networks is sometimes questioned due to the impact of ElectroMagnetic Field (EMF) generated by Radio Base Station (RBS) on users. The goal of this work is to analyze such issue from a novel perspective, by comparing RBS EMF against exposure generated by 5G smartphones in commercial deployments. The measurement of exposure from 5G is hampered by several implementation aspects, such as dual connectivity between 4G and 5G, spectrum fragmentation, and carrier aggregation. To face such issues, we deploy a novel framework, called 5G-EA, tailored to the assessment of smartphone and RBS exposure through an innovative measurement algorithm, able to remotely control a programmable spectrum analyzer. Results, obtained in both outdoor and indoor locations, reveal that smartphone exposure (upon generation of uplink traffic) dominates over the RBS one. Moreover, Line-of-Sight locations experience a reduction of around one order of magnitude on the overall exposure compared to Non-Line-of-Sight ones. In addition, 5G exposure always represents a small share (up to 38%) compared to the total one radiated by the smartphone.

[1]  G. Betta,et al.  Experimental analysis of 5G pilot signals' variability in urban scenarios , 2022, 2022 IEEE International Symposium on Measurements & Networking (M&N).

[2]  G. Betta,et al.  5G DSS communications: pilot signals’ variability analysis from measurements on the field , 2022, 2022 IEEE International Instrumentation and Measurement Technology Conference (I2MTC).

[3]  M. Hein,et al.  Impact of Small-Cell Deployment on Combined Uplink and Downlink RF Exposure Compared to the Status Quo in Mobile Networks , 2022, 2021 51st European Microwave Conference (EuMC).

[4]  C. Rowell,et al.  Mobile Network Testing of 5G NR FR1 and FR2 Networks: Challenges and Solutions , 2022, 2022 16th European Conference on Antennas and Propagation (EuCAP).

[5]  M. Hein,et al.  Analysis of Instantaneous and Maximal RF Exposure in 4G/5G Networks With Dynamic Spectrum Sharing , 2022, 2022 16th European Conference on Antennas and Propagation (EuCAP).

[6]  S. Miclaus,et al.  The Dynamics of the Radiated Field Near a Mobile Phone Connected to a 4G or 5G Network , 2022, Engineering, Technology & Applied Science Research.

[7]  Soichi Watanabe,et al.  E-Field Strength Measurements of a 5G Base Station in 28 GHz Band for EMF Exposure Assessment , 2021, 2021 IEEE USNC-URSI Radio Science Meeting (Joint with AP-S Symposium).

[8]  Pravir Chawdhry,et al.  Radio Frequency Electromagnetic Field Measurements in a Commercial 5G Network , 2021, 2021 IEEE 4th 5G World Forum (5GWF).

[9]  T. Petrescu,et al.  Uplink power levels of user equipment in commercial 4G and 5G networks , 2021, 2021 13th International Conference on Electronics, Computers and Artificial Intelligence (ECAI).

[10]  Mohamed-Slim Alouini,et al.  5G and EMF Exposure: Misinformation, Open Questions, and Potential Solutions , 2021, Frontiers in Communications and Networks.

[11]  W. Joseph,et al.  In Situ Assessment of 5G NR Massive MIMO Base Station Exposure in a Commercial Network in Bern, Switzerland , 2021, Applied Sciences.

[12]  M. Hein,et al.  Determination of Instantaneous and Maximal Human Exposure to 5G Massive-MIMO Base Stations , 2021, 2021 15th European Conference on Antennas and Propagation (EuCAP).

[13]  K R Foster,et al.  IEEE Committee on Man and Radiation—COMAR Technical Information Statement: Health and Safety Issues Concerning Exposure of the General Public to Electromagnetic Energy from 5G Wireless Communications Networks , 2020, Health physics.

[14]  Mohamed-Slim Alouini,et al.  Health Risks Associated With 5G Exposure: A View From the Communications Engineering Perspective , 2020, IEEE Open Journal of the Communications Society.

[15]  Marco Donald Migliore,et al.  A Theoretical and Experimental Investigation on the Measurement of the Electromagnetic Field Level Radiated by 5G Base Stations , 2020, IEEE Access.

[16]  Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz). , 2020, Health physics.

[17]  Luc Martens,et al.  In-situ Measurement Methodology for the Assessment of 5G NR Massive MIMO Base Station Exposure at Sub-6 GHz Frequencies , 2019, IEEE Access.

[18]  Bo Xu,et al.  Power Density Measurements at 15 GHz for RF EMF Compliance Assessments of 5G User Equipment , 2017, IEEE Transactions on Antennas and Propagation.

[19]  Takashi,et al.  RESOLUTION , 2009, Bring Now the Angels.

[20]  T. Loh,et al.  An Empirical Study of the Stochastic Nature of Electromagnetic Field Exposure in Massive MIMO Systems , 2022, IEEE Access.

[21]  S. Miclaus,et al.  Peculiarities of the radiated field in the vicinity of a mobile terminal connected to 4G versus 5G networks during various applications usage , 2022, AIMS Electronics and Electrical Engineering.

[22]  Mohammed S. Elbasheir,et al.  Measurement and Simulation-based Exposure Assessment at a Far-Field for a Multi-Technology Cellular Site up to 5G NR , 2022, IEEE Access.

[23]  Anwar Faizd Osman,et al.  RF-EMF Exposure Measurement for 5G Over Mm-Wave Base Station With MIMO Antenna , 2022, IEEE Access.

[24]  Mohamed-Slim Alouini,et al.  EMF Exposure in 5G Standalone mm-Wave Deployments: What Is the Impact of Downlink Traffic? , 2022, IEEE Open Journal of the Communications Society.

[25]  Mohamed-Slim Alouini,et al.  Massive Measurements of 5G Exposure in a Town: Methodology and Results , 2021, IEEE Open Journal of the Communications Society.

[26]  M. Migliore,et al.  A New Paradigm in 5G Maximum Power Extrapolation for Human Exposure Assessment: Forcing gNB Traffic Toward the Measurement Equipment , 2021, IEEE Access.

[27]  Seungkeun Park,et al.  A Survey on 4G-5G Dual Connectivity: Road to 5G Implementation , 2021, IEEE Access.

[28]  Hyung-Do Choi,et al.  EMF Levels in 5G New Radio Environment in Seoul, Korea , 2021, IEEE Access.

[29]  Fatemeh Ghasemifard,et al.  Actual Output Power Levels of User Equipment in 5G Commercial Networks and Implications on Realistic RF EMF Exposure Assessment , 2020, IEEE Access.