IEC TR 62669:2019

IEC TR 62669 ®
Edition 2.0 2019-04
TECHNICAL
REPORT
colour
inside
Case studies supporting IEC 62232 – Determination of RF field strength, power
density and SAR in the vicinity of radiocommunication base stations for the
purpose of evaluating human exposure
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IEC TR 62669 ®
Edition 2.0 2019-04
TECHNICAL
REPORT
colour
inside
Case studies supporting IEC 62232 – Determination of RF field strength, power

density and SAR in the vicinity of radiocommunication base stations for the

purpose of evaluating human exposure

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.280; 17.240 ISBN 978-2-8322-6795-0

– 2 – IEC TR 62669:2019 © IEC 2019
CONTENTS
FOREWORD . 10
INTRODUCTION . 12
1 Scope . 13
2 Normative references . 13
3 Terms and definitions . 13
4 Symbols and abbreviations . 17
4.1 Physical quantities . 17
4.2 Constants . 17
4.3 Abbreviated terms . 17
5 Overview of case studies . 18
6 Indoor small cell product compliance assessment using SAR measurements . 20
6.1 General description . 20
6.2 Implementation of IEC 62232:2017 . 20
6.2.1 Evaluation process . 20
6.2.2 Methodology . 21
6.2.3 Reporting . 22
6.3 Technical outcome . 22
6.4 Lessons learned . 22
7 Outdoor small cell product compliance assessment using SAR measurements . 23
7.1 General description . 23
7.2 Implementation of IEC 62232:2017 . 23
7.2.1 Evaluation process . 23
7.2.2 Methodology . 24
7.2.3 Reporting . 24
7.3 Technical outcome . 24
7.4 Lessons learned . 24
8 Small cell product installation compliance assessment using simplified installation
criteria . 24
8.1 General description . 24
8.2 Implementation of IEC 62232:2017 . 25
8.2.1 Evaluation process . 25
8.2.2 Methodology . 26
8.2.3 Reporting . 26
8.3 Technical outcome . 26
8.4 Lessons learned . 27
9 Small cell site in-situ measurements . 27
9.1 General description . 27
9.2 Implementation of IEC 62232:2017 for measurement Campaign A . 27
9.2.1 Evaluation process . 27
9.2.2 Methodology . 28
9.2.3 Reporting . 29
9.3 Implementation of IEC 62232:2017 for measurement Campaign B . 29
9.3.1 General description . 29
9.3.2 Case B (comprehensive exposure evaluation) . 30
9.3.3 Reporting . 31
9.4 Lessons learned . 31

10 Street cell product compliance assessment using SAR measurements and power
density spatial averaging . 31
10.1 General description . 31
10.2 Implementation of IEC 62232:2017 . 32
10.2.1 Evaluation process . 32
10.2.2 Methodology . 32
10.2.3 Reporting . 33
10.3 Technical outcome . 33
10.4 Validation study . 33
10.4.1 Validation process . 33
10.4.2 Comparison of spatial average field strength and whole-body SAR
results . 34
10.5 Lessons learned . 34
11 Macro site in-situ measurements . 34
11.1 General description . 34
11.2 Implementation of IEC 62232:2017 . 35
11.2.1 Evaluation process . 35
11.2.2 Methodology . 36
11.2.3 Reporting . 36
11.3 Technical outcome . 36
11.4 Lessons learned . 36
12 Macro site in-situ measurements using drones . 36
12.1 General description . 36
12.2 Implementation . 37
12.2.1 Evaluation system . 37
12.2.2 Evaluation process and methodology . 38
12.2.3 Reporting . 38
12.3 Technical outcome . 38
12.4 Lessons learned . 39
13 RF exposure assessment based on actual maximum transmitted power or EIRP . 39
13.1 General guidelines . 39
13.1.1 Technical background and rationale . 39
13.1.2 Guiding principles for conducting RF exposure assessment based on

the actual maximum approach . 42
13.1.3 EIRP evaluation assumptions . 42
13.1.4 Technology duty cycle factor assumptions . 43
13.1.5 Expected outcome of actual maximum approaches . 45
13.2 Modelling studies for BS using mMIMO . 45
13.2.1 Guiding principles . 45
13.2.2 Simulation model parameters . 45
13.2.3 Modelling case study A . 47
13.2.4 Modelling case study B . 49
13.2.5 Modelling case study C . 51
13.2.6 Lessons learned . 53
13.3 Measurement studies on operational sites with BS using mMIMO . 54
13.3.1 Guiding principles . 54
13.3.2 Measurement campaign parameters . 54
13.3.3 Experiment process . 55
13.3.4 Examples of RF exposure experiments . 57

– 4 – IEC TR 62669:2019 © IEC 2019
13.3.5 Lessons learned .
...