SIST EN 50492:2009/A1:2014
(Amendment)Basic standard for the in-situ measurement of electromagnetic field strength related to human exposure in the vicinity of base stations
Basic standard for the in-situ measurement of electromagnetic field strength related to human exposure in the vicinity of base stations
This European Standard specifies in the vicinity of base station as defined in 3.2 the measurement methods, the measurement systems and the post processing that shall be used to determine in-situ the electromagnetic field for human exposure assessment in the frequency range 100 kHz to 300 GHz.
Grundnorm für die Messung der elektromagnetischen Feldstärke am Aufstell- und Betriebsort von Basisstationen in Bezug auf die Sicherheit von in ihrer Nähe befindlichen Personen
Norme de base pour la mesure du champ électromagnétique sur site, en relation avec l’exposition du corps humain à proximité des stations de base
Osnovni standard za terensko merjenje jakosti elektromagnetnega polja v zvezi z izpostavljenostjo ljudi v okolici baznih postaj - Dopolnilo A1
Ta evropski standard določa merilne metode in sisteme ter naknadno obdelavo v okolici baznih postaj, kot je določeno v poglavju 3.2, za terensko merjenje elektromagnetnega polja v zvezi z izpostavljenostjo ljudi v frekvenčnem območju 100 kHz–300 GHz.
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50492:2009/A1:2014
01-maj-2014
Osnovni standard za terensko merjenje jakosti elektromagnetnega polja v zvezi z
izpostavljenostjo ljudi v okolici baznih postaj - Dopolnilo A1
Basic standard for the in-situ measurement of electromagnetic field strength related to
human exposure in the vicinity of base stations
Grundnorm für die Messung der elektromagnetischen Feldstärke am Aufstell- und
Betriebsort von Basisstationen in Bezug auf die Sicherheit von in ihrer Nähe befindlichen
Personen
Norme de base pour la mesure du champ électromagnétique sur site, en relation avec
l’exposition du corps humain à proximité des stations de base
Ta slovenski standard je istoveten z: EN 50492:2008/A1:2014
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
33.070.01 Mobilni servisi na splošno Mobile services in general
SIST EN 50492:2009/A1:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 50492:2009/A1:2014
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SIST EN 50492:2009/A1:2014
EUROPEAN STANDARD
EN 50492/A1
NORME EUROPÉENNE
March 2014
EUROPÄISCHE NORM
ICS 17.220.20; 33.070.01
English version
Basic standard for the in-situ measurement of electromagnetic field
strength related to human exposure in the vicinity of base stations
Norme de base pour la mesure du champ Grundnorm für die Messung der
électromagnétique sur site, en relation elektromagnetischen Feldstärke am
avec l’exposition du corps humain à Aufstell- und Betriebsort von
proximité des stations de base Basisstationen in Bezug auf die Sicherheit
von in ihrer Nähe befindlichen Personen
This amendment A1 modifies the European Standard EN 50492:2008; it was approved by CENELEC on 2014-
01-06. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate
the conditions for giving this amendment the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50492:2008/A1:2014 E
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SIST EN 50492:2009/A1:2014
EN 50492:2008/A1:2014 - 2 -
Foreword
This document (EN 50492:2008/A1:2014) has been prepared by CLC/TC 106X,
"Electromagnetic fields in the human environment".
The following dates are fixed:
• latest date by which this document h (dop) 2015-01-06
as to be implemented at national
level by publication of an identical
national
standard or by endorsement
• latest date by which the national (dow) 2017-01-06
standards conflicting with this
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying
any or all such patent rights.
__________________
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SIST EN 50492:2009/A1:2014
- 3 - EN 50492:2008/A1:2014
Table of Contents
Add:
Annex L (informative) FDD LTE measurements .
L.1 General .
L.2 Maximum LTE exposure .
L.2.1 Introduction .
L.2.2 Method using a dedicated decoder .
L.2.3 Method using a basic spectrum analyser .
L.3 Instantaneous LTE exposure measurements .
Add to the table of figures
Figure L. 1 - LTE time-frequency plan
Figure L. 2 - Illustration of the boosting factor BF, specific to each network operator
Figure L. 3 - LTE spectrum: PBCH power higher than RS power
Add to the table of tables
Table L. 1 - Theoretical extrapolation factor, n as function of the bandwidth, assuming all
RS
subcarriers are at the same power level.
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SIST EN 50492:2009/A1:2014
EN 50492:2008/A1:2014 - 4 -
10 Assessment of the field strength at maximum traffic of a
cellular network
Replace the last paragraph:
"For WiFi the measurements and extrapolation shall take into account the specificity of this
signal related to the variation of the time occupation (technical parameters such as channel
occupancy etc are described in Annex J)."
by
"For Wifi and LTE the measurements and extrapolation shall take into account the specificity
of these signals related to time occupation (technical parameters are described in Annex J
and Annex L)."
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SIST EN 50492:2009/A1:2014
- 5 - EN 50492:2008/A1:2014
Add Annex L:
Annex L
(informative)
FDD LTE measurements
L.1 General
Annex L describes methods to measure and extrapolate LTE (MIMO 2x2 and MIMO 2x1)
exposure level (FDD LTE [1]). This annex is not an exhaustive summary of existing methods,
and other measurement methods for LTE have been published [2]. The proposed methods
require classical radiofrequency (RF) measurement instruments: a basic spectrum analyser
or a dedicated decoder and an isotropic antenna.
LTE emissions consist of specific signals at specific time-frequency allocations [3] [4]. This
kind of dynamic time-frequency allocation is known as Orthogonal Frequency Division
Multiple Access (OFDMA). See Figure L.1.
Figure L.1 - LTE time-frequency plan
As for other telecommunication signals, LTE signals are subject to time variations because of
traffic variations and random fluctuations of the propagation medium. The extrapolation to the
maximum traffic should be based on the measurement of a time independent channel or
signal. Due to the LTE specifications, the power of each time-frequency unitary element [1]
(66,7 µs, 15 kHz) in the LTE downlink signal is scalable from one kind of transmitted data to
another. In addition, LTE downlink spectrum is totally flexible and may vary from 1,4 MHz to
20 MHz, and inside the spectrum, the power level may vary from one channel to another.
...
SLOVENSKI STANDARD
SIST EN 50492:2009/oprAA:2012
01-december-2012
Osnovni standard za terensko merjenje jakosti elektromagnetnega polja v zvezi z
izpostavljenostjo ljudi v okolici baznih postaj
Basic standard for the in-situ measurement of electromagnetic field strength related to
human exposure in the vicinity of base stations
Grundnorm für die Messung der elektromagnetischen Feldstärke am Aufstell- und
Betriebsort von Basisstationen in Bezug auf die Sicherheit von in ihrer Nähe befindlichen
Personen
Norme de base pour la mesure du champ électromagnétique sur site, en relation avec
l’exposition du corps humain à proximité des stations de base
Ta slovenski standard je istoveten z: EN 50492:2008/prAA:2012
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
33.070.01 Mobilni servisi na splošno Mobile services in general
SIST EN 50492:2009/oprAA:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 50492:2009/oprAA:2012
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SIST EN 50492:2009/oprAA:2012
DRAFT
EUROPEAN STANDARD
EN 50492
prAA
NORME EUROPÉENNE
September 2012
EUROPÄISCHE NORM
ICS 17.220.20; 33.070.01
English version
Basic standard for the in-situ measurement of electromagnetic field
strength related to human exposure in the vicinity of base stations
Norme de base pour la mesure du champ Grundnorm für die Messung der
électromagnétique sur site, en relation elektromagnetischen Feldstärke am
avec l’exposition du corps humain à Aufstell- und Betriebsort von
proximité des stations de base Basisstationen in Bezug auf die Sicherheit
von in ihrer Nähe befindlichen Personen
This draft amendment prAA, if approved, will modify the European Standard EN 50492:2008; it is submitted to
CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2013-02-15.
It has been drawn up by CLC/TC 106X.
If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal
Regulations which stipulate the conditions for giving this amendment the status of a national standard without
any alteration.
This draft amendment was established by CENELEC in three official versions (English, French, German). A
version in any other language made by translation under the responsibility of a CENELEC member into its own
language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to
change without notice and shall not be referred to as a European Standard.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Project: 23018 Ref. No. EN 50492:2008/prAA:2012 E
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SIST EN 50492:2009/oprAA:2012
EN 50492:2008/prAA:2012 - 2 -
1 Foreword
2 This document (EN 50492:2008/prAA:2012) has been prepared by CLC/TC 106X "Electromagnetic
3 fields in the human environment".
4 This document is currently submitted to the Enquiry.
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SIST EN 50492:2009/oprAA:2012
- 3 - EN 50492:2008/prAA:2012
5 Text of prAA to EN 50492:2008
6 Contents
7 Add the following before 'Bibliography':
8 Annex L (informative) LTE measurements . 4
9 L.1 General. 4
10 L.2 Maximum LTE exposure . 5
11 L.3 Instantaneous LTE exposure assessment . 7
12
13 Add the following at the end of table “Figures”:
14 Figure L.1 – LTE time-frequency plan .4
15 Figure L.2 – Power of RS subcarriers is often higher because of an existing boosting factor BF,
16 specific to each network operator .6
17 Figure L.3 – LTE spectrum: PBCH power higher than RS power.6
18
19 Add the following at the end of table “Tables”:
20 Table L.1 – Theoretical extrapolation factor, n as function of the bandwidth, assuming all
RS
21 subcarriers are at the same power level .5
22
23 Annexes
24 Add the following new annex:
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SIST EN 50492:2009/oprAA:2012
EN 50492:2008/prAA:2012 - 4 -
25 Annex L
26 (informative)
27
28 LTE measurements
29 L.1 General
30 Annex L describes methods to measure and extrapolate LTE exposure (FDD LTE). The proposed
31 methods require classical radiofrequency (RF) measurement instruments: a basic spectrum analyzer
32 or a dedicated decoder and an isotropic antenna.
33 LTE emissions consist of specific signals at specific time frequency allocations [1] [2]. This kind of
34 dynamic time-frequency allocation is known as Orthogonal Frequency Division Multiple Access
35 (OFDMA). See Figure L.1.
36
37 Figure L.1 – LTE time-frequency plan
38 As for other telecommunication signals, LTE signals are subject to time variations because of random
39 fluctuations of the propagation medium and traffic variations. The extrapolation to the maximum traffic
40 should be based on the measurement of a time independent channel. Due to the LTE specifications,
41 the power of each time-frequency unitary element (66,7 µs, 15 kHz) in the LTE downlink signal is
42 scalable from one kind of transmitted data to another. In addition, LTE downlink spectrum is totally
43 flexible and may vary from 1,25 MHz to 20 MHz, and inside the spectrum, the power level
...
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