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Abstracts
Overview of SG 5 activities, Mitsuru Yamada, Adviser, ITU/TSB
This presentation focuses on the latest activities of the ITU-T Study Group 5 as well as the general introduction to the ITU and ITU-T. The mandate and structure of the Study Group 5 will be summed up and several standardization items of the Study Group 5 such as EMF(Electromagnetic Field) exposure and Climate Change will be presented.
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ICNIRP
Paolo Vecchia, Chairman, International Commission on Non Ionizing Radiation Protection (ICNIRP)
The International Commission on Non
Ionizing Radiation Protection (ICNIRP)
is an independent group of experts in
the area of non ionizing radiation
(NIR), including electromagnetic fields.
Its mission is to provide guidance and
advice to International organizations
and to National governments for the
development of science-based policies to
adequately protect against adverse
health effects of exposure to NIR. In
particular, ICNIRP has published, and
regularly updates, guidelines for safe
exposure of workers and the general
public to electromagnetic fields; such
guidelines have formed the basis for
National legislation in a large numbers
of countries all over the world. The
basic approach of ICNIRP includes a
thorough review of the scientific
literature, an analysis of biological
and health effects based on the weigh of
evidence, and the definition of exposure
restrictions based on established health
effects. Conservative hypotheses, and
the introduction of rather large
reduction factors make ICNIRP limits
adequate to prevent any known health
effect. ICNIRP is presently in the
process of completely revising its
guidelines in the light of the most
recent research findings. While the
process has been completed for static
magnetic fields and for extremely low
frequency (ELF) electric and magnetic
fields, the update of guidelines for
radiofrequency (RF) fields will follow
health risk evaluations to be carried
out by the International Agency for
Research on Cancer (IARC) and the World
Health Organization (WHO). |
Evaluating RF field strength and SAR from radio base station sources – an overview of CENELEC and IEC standards and an introduction to IEC 62232
Peter Zollman, Technical Manager, Group R&D, Vodafone, UK
This presentation will introduce the
range of IEC and CENELEC standards that
are relevant to the evaluation of RF
field strength and SAR values of the RF
emissions from radio base stations.
A range of concepts have been used in
the IEC 62232 standard in order to
address the many types of radio base
stations commonly used for
telecommunications. This new standard
also covers a range of purposes
including: product compliance of small
cells; confirmation of control
boundaries; evaluation of compliance
boundary and even provides guidance on
how to assess situations where over
exposure may have occurred.
The standard considers a range of
measurement and computation methods to
determine RF field strength and SAR
giving the flexibility to apply the most
appropriate trade-off between simplicity
and accuracy. The reasons for having
different evaluation methods will be
introduced.
The inevitable uncertainty in evaluation
means that careful attention is needed
when interpreting a comparison of the
evaluated value to a given limit value
and when interpreting a measurement from
an audit such as a regulator.
This led to the IEC 62232 “assessment
scheme” concept.
Finally, many of the IEC 62232
evaluation methods will be presented
with an overview of the supporting
studies used to prove them. |
Country Experience: UK and international
Thomas Barmüller, Director Europe, Middle East and Africa Mobile Manufacturers Forum (MMF), Brussels, Belgium
The presentations lists countries which have recently adopted ICNIRP EMF exposure limits, outlines important points to emphasize when EMF exposure from mobile phones and the Specific Absorption Rate (SAR) is communicated to the public as not only correct measurements but also public trust in the safety of mobile communication systems is key. Finally, the presentation names applicable standards and describes the SAR measurement procedure in more detail. |
Country experience: France
Jean-Benoit Agnani, ANFR, France
This presentation is about France
experience in EMF measurement, in
particular a new protocol compliant with
EN 50492 standard is described.
Radio equipment market monitoring in
France is summed up and a general
overview about the first results of the
Comop workgroup which studies the
feasibility of a reduction of the public
exposure to EMF through modeling and
experimentation is presented. |
Use of EMF estimator for Base station authorization in a multisource environment
Fryderyk Lewicki, Rapporteur Q3 (WP2/5), Poland
Human exposure assessment is required in
order to show compliance with
regulations concerning the protection
against electromagnetic radiation, and
it is a part of the ITU-T SG5 activity.
In the presentation a computational
method of human exposure assessment will
be shown, which uses the software
EMF-estimator, given in the Appendix I
to the ITU-T Recommendation K.70. The
software capabilities and limitations,
the existing library of antennas and how
it can be extended by the user, will be
presented. Examples of calculations for
many typical and real cases in the
current multiple sources environment
will be discussed. It will be concluded
that in many cases the simple
calculations may provide reliable and
sufficient results. This allows for the
reduction of costs in fulfilling the
environmental protection regulations
requirements. |
K.52 and K.61
Fryderyk Lewicki, Rapporteur Q3 (WP2/5), Poland
Because of fast development of radiocommunication services there is a big increase in the number of transmitting equipment, which leads to questions concerning the public safety and the influence on human health. ITU-T SG5 in its recommendations gives guidance on the best practice and mitigation techniques concerning the protection against non-ionizing radiation in the areas near radiocommunication installations. In this presentation these recommendations will be discussed and current and future works of the ITU-T in this field will be described.
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Assessment of GSM Base Station conformance
Marnus van Wyk, EMSS Consulting, South Africa
This session follows on the talk in Session 4 and is used for a practical
demonstration of EMF measurements at a cellular base station on the premises
of the Gaborone International Conference Centre. |
Communicating the Results of
Base Station Measurement Surveys
Jack Rowley, Director Research & Sustainability, GSMA, UK
Many organizations have conducted
measurements of radiofrequency (RF)
exposure from mobile communication base
stations. This presentation will
summarise the trends from evident from
existing surveys in relation to exposure
over time and provide comparisons
between technologies and countries. It
will also provide some examples of how
the results have been used in public
communication programs. |
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