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Directional EMF Power-Lock Feature: Comparisons with Cell-Wide Feature in Live Network in Germany

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 II of this publication, the performance between the directional EMF power-lock feature and the previous cell-wide feature is compared in a live network in Germany. A measurement campaign at a commercial 5G site using an advanced measurement setup with time-synchronized equipment is presented. Also, network counter data are collected over 87 cells before and after swapping from the cell-wide feature to the directional feature. 

Full abstract in IEEEXplore DOI: 10.1109/TAP.2024.3430093

Authors

Fabian Michler, Sykno GmbH

Roland Reese, Deutsche Telekom Technik GmbH

Benedict Scheiner, Sykno GmbH

Eva Radermacher, Deutsche Telekom Technik GmbH

Jose Angel Gomez Correal, Ericsson

Bo Xu, Ericsson 

 

Published in the IEEE Transactions on Antennas and Propagation.

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