Supplement 13 to ITU-T K-series Recommendations (12/2021) Radiofrequency electromagnetic field (RF-EMF) exposure levels from mobile and portable devices during different conditions of use
Summary
History
FOREWORD
Table of Contents
Introduction
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Supplement
4 Abbreviations and acronyms
5 Conventions
6 Information for users of mobile devices
     6.1 Voice connection
     6.2 Short message service, multimedia messaging service and Internet
     6.3 Distance – base station to mobile device
     6.4 Hands-free devices, speaker mode
     6.5 Connections in car, bus and train
     6.6 Body-worn devices
     6.7 Shielding devices
     6.8 Use by children
     6.9 Use by pregnant women
     6.10 Charging of mobile and portable devices
     6.11 Use by people with electronic medical devices
     6.12 Use with hearing aids
     6.13 Exposure limits and compliance assessment
7 Factors affecting personal exposure from mobile and portable devices
     7.1 Device design
     7.2 Transmitter power temporal profile
          7.2.1 Development of telecommunication systems used for mobile and portable devices
          7.2.2 Network influence on mobile device power control
          7.2.3 Mobile device "shields"
          7.2.4 Discontinuous transmission and data packet transmission
          7.2.5 Call duration
          7.2.6 Handovers
     7.3 Device position and orientation relative to user
     7.4 Human body characteristics
     7.5 SAR assessment technique
          7.5.1 Typical exposure versus maximum exposure
8 Conclusion
Bibliography
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