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Directional EMF Power-Lock Feature: Design Principles and Feature Validation

When the electromagnetic field (EMF) compliance boundary of a radio base station (RBS) is determined based on the actual maximum EMF exposure condition according to the international standard IEC 62232:2022, software features to monitor and control the time-averaged transmitted power or the equivalent isotropically radiated power (EIRP) are recommended or required in many countries. In this publication, a new software feature that maps the EIRP contributions from massive multiple-input multiple-output (MIMO) RBS to eight azimuthal segments within a cell is presented. This publication is divided into two parts.
Research paper

In Part I of this publication, the design principles of the new feature and feature validation tests based on in-situ measurements are described. The results confirm that the new feature ensures that the time-averaged EIRP is maintained below the set threshold in all test cases. 

Full abstract in IEEEXplore DOI: 10.1109/TAP.2024.3430496

Authors

Bo Xu, Imen Mrissa, Israfil Bahceci, Carla Di Paola, Ken Huisman, Amr El-Keyi, and Christer Törnevik.

Published in the IEEE Transactions on Antennas and Propagation.

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