DANSK DSF/IEC TR 62669 ED2 PDF

This document, which is a Technical Report, presents a series of case studies in which electromagnetic (EM) fields are evaluated in accordance with IEC 62232:2017. The case studies presented in this document involve intentionally radiating base stations (BS). The BS transmit on one or more antennas using one or more frequencies in the range 110 MHz to 100 GHz and RF exposure assessments are taking into account the contribution of ambient sources at least in the 100 kHz to 300 GHz frequency range. Each case study has been chosen to illustrate a typical BS evaluation scenario and employs the methods detailed in IEC 62232:2017. The case studies are provided for guidance only and are not a substitute for a thorough understanding of the requirements of IEC 62232:2017. Based on the lessons learned from each case study, recommendations about RF assessment topics to be considered in the next revision of IEC 62232 are proposed. The methodologies and approaches described in this document may be useful for the assessment of early 5G products introduced for consumer trials or deployments. This document provides background and rationale for applying a statistical approach to RF exposure assessment for base stations. Guidance for applying statistical information of the transmitted power of a massive MIMO base station and evaluating its actual maximum RF exposure based on modelling studies or measurement studies on operational sites (in networks, sub- networks or field trials) is also presented.