SIST EN 300 674-1 V1.2.1:2006

SLOVENSKI STANDARD
01-marec-2006
Elektromagnetna združljivost in zadeve v zvezi z radijskim spektrom (ERM) –
Cestna transportna in prometna telematika (RTTT) – Oddajniška oprema za
enouporabniško (osebno) komunikacijo kratkega dosega (DSRC) (s prenosnima
hitrostma 500 kbit/s / 250 kbit/s), ki deluje v pasu 5,8 GHz, namenjenem
industrijski, znanstveni in medicinski uporabi – 1. del: Splošne karakteristike in
preskusne metode za obcestne enote (RSU) in enote na vozilu (OBU)
Electromagnetic compatibility and Radio spectrum Matters (ERM); Road Transport and
Traffic Telematics (RTTT); Dedicated Short Range Communication (DSRC) transmission
equipment (500 kbit/s / 250 kbit/s) operating in the 5,8 GHz Industrial, Scientific and
Medical (ISM) band; Part 1: General characteristics and test methods for Road Side
Units (RSU) and On-Board Units (OBU)
Ta slovenski standard je istoveten z: EN 300 674-1 Version 1.2.1
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
35.240.60 Uporabniške rešitve IT v IT applications in transport
transportu in trgovini and trade
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI EN 300 674-1 V1.2.1 (2004-08)
European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Road Transport and Traffic Telematics (RTTT);
Dedicated Short Range Communication (DSRC)
transmission equipment (500 kbit/s / 250 kbit/s) operating in
the 5,8 GHz Industrial, Scientific and Medical (ISM) band;
Part 1: General characteristics and test methods
for Road Side Units (RSU) and On-Board Units (OBU)

2 ETSI EN 300 674-1 V1.2.1 (2004-08)

Reference
REN/ERM-TG29-0105
Keywords
data, DSRC, radio, RTTT, testing
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ETSI
3 ETSI EN 300 674-1 V1.2.1 (2004-08)
Contents
Intellectual Property Rights.7
Foreword.7
1 Scope.8
2 References.8
3 Definitions, symbols and abbreviations .9
3.1 Definitions.9
3.2 Symbols.10
3.3 Abbreviations.12
4 General characteristics.14
4.1 Mechanical and electrical design.14
4.1.1 Units.14
4.1.2 Controls.14
4.2 Environmental profiles.15
4.2.1 Summary.15
4.2.2 Environmental profile declared by provider .15
4.2.3 Voluntary ETSI environmental profile .15
4.2.3.1 Normal environmental conditions.15
4.2.3.2 Extreme environmental conditions.15
5 General characteristics of Road Side Unit.16
5.1 RSU classes.16
5.2 Power supply.16
5.3 Carrier frequencies.16
5.4 Antenna characteristic.16
5.5 Modulation.16
6 General characteristics of On Board Unit .17
6.1 OBU sets.17
6.2 OBU assemblies.17
6.3 Power supply.17
6.4 Up-link sub-carrier frequencies.17
6.5 Antenna characteristic.18
6.6 Carrier frequencies.18
6.7 Modulation.18
7 Parameter description and required limits.19
7.1 RSU.19
7.1.1 Modulation index.19
7.1.2 Dynamic range.19
7.1.2.1 Definition.19
7.1.2.2 Sensitivity.20
7.1.2.3 Error behaviour at high wanted input signals.20
7.1.3 Intermodulation immunity.20
7.1.4 Co-channel rejection.20
7.1.5 Blocking.20
7.1.6 Selectivity.21
7.1.7 Maximum equivalent isotropically radiated power.21
7.1.8 Frequency error.21
7.1.9 Transmitter spectrum mask.21
7.1.10 Transmitter unwanted emissions.22
7.1.11 Receiver Spurious emissions .22
7.2 OBU.23
7.2.1 Dynamic range.23
7.2.1.1 Definition.23
7.2.1.2 Sensitivity.23
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4 ETSI EN 300 674-1 V1.2.1 (2004-08)
7.2.1.3 Upper power limit for communication.23
7.2.2 Cut-off power level.23
7.2.3 Conversion gain.23
7.2.4 Maximum equivalent isotropically radiated power.24
7.2.5 Frequency error.24
7.2.6 Transmitter spectrum mask.24
7.2.7 Transmitter unwanted emissions.25
7.2.8 Receiver spurious emissions.25
8 Basics on testing.25
8.1 General conditions.25
8.1.1 Environment.25
8.1.2 Power source.25
8.1.3 Thermal balance.26
8.2 Test signals.26
8.3 Test sites.27
8.3.1 Shielded anechoic chamber.27
8.3.2 Open area test site.28
8.3.3 Test fixture.29
8.4 General requirements for RF cables .30
8.5 Conducted measurements.31
8.5.1 One antenna connector arrangement.31
8.5.2 Two antenna connectors arrangement.32
8.5.3 Test site requirements .32
8.5.4 Site preparation.32
8.5.4.1 Monochromatic signals.32
8.5.4.2 Modulated signals.33
8.6 Radiated measurements.33
8.6.1 One antenna arrangement .33
8.6.2 Two antennas arrangement .35
8.6.3 Test site requirements .36
8.6.3.1 Measurement distances.36
8.6.3.2 Free-space wave propagation.36
8.6.4 Test and substitution antennas .37
8.6.5 Site preparation for OBU measurements .37
8.6.5.1 Monochromatic signals.37
8.6.5.2 Modulated signals.39
8.6.6 Site preparation for RSU measurements.40
8.6.6.1 Arrangement for transmit parameters.40
8.6.6.2 Arrangement for receive parameters .41
8.7 Instruments.42
8.7.1 Receiving device.42
8.7.2 RF power sensor .43
8.7.3 Combiner.43
8.8 Power of modulated RSU carrier .44
8.9 Bit error ratio measurements .45
8.9.1 Basics.45
8.9.2 BER measurement.45
8.9.3 FER measurement.45
8.9.3.1 Mathematical expressions.45
8.9.3.2 Equipment.45
8.9.3.3 Procedure.46
9 Testing of Road Side Unit.46
9.1 Modulation index.46
9.1.1 General.46
9.1.2 Radiated measurements.46
9.1.3 Conducted measurements.47
9.2 Dynamic range.47
9.2.1 Sensitivity.47
9.2.1.1 General.47
9.2.1.2 Radiated measurements.48
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5 ETSI EN 300 674-1 V1.2.1 (2004-08)
9.2.2 Error behaviour at high wanted input signals .48
9.2.2.1 General.48
9.2.2.2 Radiated measurements.48
9.3 Intermodulation immunity.49
9.3.1 General.49
9.3.2 Radiated measurements.49
9.4 Co-channel rejection.50
9.4.1 General.50
9.4.2 Radiated measurements.50
9.5 Blocking.51
9.5.1 General.51
9.5.2 Radiated measurements.51
9.6 Selectivity.52
9.6.1 General.52
9.6.2 Radiated measurements.52
9.7 Maximum equivalent isotropically radiated power .52
9.7.1 General.52
9.7.2 Radiated measurements.52
9.7.3 Conducted measurements.53
9.8 Frequency error.53
9.8.1 General.53
9.8.2 Radiated measurements.54
9.8.3 Conducted measurements.54
9.9 Transmitter spectrum mask.54
9.9.1 General.54
9.9.2 Radiated measurements.55
9.9.3 Conducted measurements.56
9.10 Transmitter unwanted emissions .58
9.10.1 General.58
9.10.2 Radiated measurements.58
9.11 Receiver spurious emissions.59
9.11.1 General.59
9.11.2 Radiated measurements.60
10 Testing of On Board Unit.60
10.1 Dynamic range.60
10.1.1 Sensitivity.60
10.1.1.1 General.60
10.1.1.2 Radiated measurements.60
10.1.1.3 Conducted measurements.61
10.1.2 Upper power limit for communication.61
10.1.2.1 General.61
10.1.2.2 Radiated measurements.62
10.1.2.3 Conducted measurements.62
10.2 Cut-off power level .63
10.2.1 General.63
10.2.2 Radiated measurements.63
10.2.3 Conducted measurements.63
10.3 Conversion gain.64
10.3.1 General.64
10.3.2 Radiated measurement.64
10.3.3 Conducted measurement.65
10.4 Maximum equivalent isotropically radiated power .66
10.4.1 General.66
10.4.2 Radiated measurement.66
10.4.3 Conducted measurement.67
10.5 Frequency error.68
10.5.1 General.68
10.5.2 Radiated measurements.68
10.5.3 Conducted measurements.69
10.6 Transmitter spectrum mask.69
10.6.1 General.69
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6 ETSI EN 300 674-1 V1.2.1 (2004-08)
10.6.2 Radiated measurements.69
10.6.3 Conducted measurements.71
10.7 Transmitter unwanted emissions .73
10.7.1 General.73
10.7.2 Radiated measurement.74
10.8 Receiver spurious emissions.76
10.8.1 General.76
10.8.2 Radiated measurement.76
11 Interpretation of results and measurement uncertainty .76
11.1 Interpretation of results .76
11.2 Measurement uncertainty.76
History .78

ETSI
7 ETSI EN 300 674-1 V1.2.1 (2004-08)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document is part 1 of a multi-part deliverable covering Electromagnetic compatibility and Radio spectrum
Matters (ERM); Road Transport and Traffic Telematics (RTTT); Dedicated Short Range Communication (DSRC)
transmission equipment (500 kbit/s / 250 kbit/s) operating in the 5,8 GHz Industrial, Scientific and Medical (ISM) band,
as identified below:
Part 1: "General characteristics and test methods for Road Side Units (RSU) and On-Board Units (OBU)";
Part 2: "Harmonized EN under article 3.2 of the R&TTE Directive".

National transposition dates
Date of adoption of this EN: 2 April 2004
Date of latest announcement of this EN (doa): 31 July 2004
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2005
Date of withdrawal of any conflicting National Standard (dow): 31 January 2005

ETSI
8 ETSI EN 300 674-1 V1.2.1 (2004-08)
1 Scope
The present document applies to Road Transport and Traffic Telematics (RTTT) wireless systems:
- with or without antenna connectors;
- for digital data transmission;
- operating on radio frequencies in the 5,725 GHz to 5,875 GHz Industrial, Scientific and Medical (ISM)
frequency band.
The applicability of the present document covers both the Road Side Units (RSUs) and the On-Board Units (OBUs)
with transceivers and transponders.
The present document complies with ECC/DEC/(02)01 [1] and CEPT/ERC/REC 70-03 [3]. It is a specific standard
covering various RTTT applications.
Additional standards or specifications may be required for equipment such as that intended for connection to the Public
Switched Telephone Network (PSTN) or other systems.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] ECC/DEC/(02)01: "ECC Decision of 15 March 2002 on the frequency bands to be designated for
the coordinated introduction of Road Transport and Traffic Telematic Systems".
[2] CENELEC EN 12253 (2003): "Road transport and traffic telematics. Dedicated short-range
communication. Physical layer using microwave at 5,8 GHz".
[3] CEPT/ERC/REC 70-03: "Relating to the use of Short Range Devices (SRD)".
[4] ETSI TR 100 028 (V1.4.1 - all parts): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); Uncertainties in the measurement of mobile radio equipment characteristics".
[5] IEC 60721-3-4 (1995) including Amendment 1 (1996): "Classification of environmental
conditions - Part 3: Classification of groups of environmental parameters and their severities -
Section 4: Stationary use at non-weather protected locations".
[6] IEC 60721-3-5 (1997): "Classification of environmental conditions - Part 3: Classification of
groups of environmental parameters and their severities - Section 5: Ground vehicle installations".
[7] BS EN 12795 (2003): "Road transport and traffic telematics. Dedicated short range
communication (DSRC). DSRC data link layer. Medium access and logical link control".
[8] BS EN 12834 (2003): "Road transport and traffic telematics. Dedicated Short Range
Communication (DSRC). DSRC application layer".
[9] ISO/TR 14906 (1998): "Road Transport and Traffic Telematics (RTTT) - Electronic Fee
Collection (EFC) - Application interface definition for dedicated short range communications".
ETSI
9 ETSI EN 300 674-1 V1.2.1 (2004-08)
[10] CEPT/ERC/REC 74-01E (2002): "Spurious Emissions".
[11] ETSI TR 102 273-2 (V1.2.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties; Part 2: Anechoic chamber".
[12] ETSI TR 102 273-4 (V1.2.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties; Part 4: Open area test site".
[13] ETSI TR 102 273-6 (V1.2.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties; Part 6: Test fixtures".
[14] CENELEC EN 13372 (2003): "Road transport and traffic telematics (RTTT). Dedicated short-
range communication. Profiles for RTTT applications".
[15] Commission Directive 95/54/EC of 31 October 1995 adapting to technical progress Council
Directive 72/245/EEC on the approximation of the laws of the Member States relating to the
suppression of radio interference produced by spark-ignition engines fitted to motor vehicles and
amending Directive 70/156/EEC on the approximation of the laws of the Member States relating
to the type-approval of motor vehicles and their trailers.
[16] CISPR 16-1 Edition 2.1 (2002): "Specification for radio disturbance and immunity measuring
apparatus and methods - Part 1: Radio disturbance and immunity measuring apparatus".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply.
adjacent channel: A downlink adjacent channel refers to transmission in downlink direction using any one of the
adjacent DSRC downlink channels at a distance of 5 MHz, i.e. in the channel at the next upper or lower centre
frequency. An uplink adjacent channel refers to transmission in uplink direction using any one of the uplink
communication channels related to a centre frequency at a distance of 5 MHz relative to the own downlink centre
frequency.
bit: acronym for "binary digit" which can have one out of two possible values, e.g. 0/1 or +1/-1 or low/high
bit rate: in a bit stream, the number of bits occurring per unit time, usually expressed in bits per second
bore sight: direction of maximum radiation of a directional antenna
NOTE: If bore sight can not be determined unambiguously, then bore sight may be declared by the provider.
carrier frequency: frequency f to which the RSU transmitter is tuned
Tx
NOTE: In DSRC, the carrier frequency is in the centre of a channel, see table 2 of the present document.
carrier signal or carrier: harmonic signal whose nominal single frequency f can vary within a range specified by the
Tx
carrier frequency tolerance and which is capable of being modulated by a second, symbol-carrying signal
channel: continuous part of the radio-frequency spectrum to be used for a specified emission or transmission
NOTE: A radio-frequency channel may be defined by two specified limits, or by its centre frequency and its
bandwidth, or any equivalent indication. It is often designated by a sequential number. A radio-frequency
channel may be time-shared in order to allow radiocommunication in both directions by simplex
operation. The term "channel" is sometimes used to denote two associated radio-frequency channels, each
of which is used for one of two directions of transmission, i.e. in fact a telecommunication circuit.
ETSI
10 ETSI EN 300 674-1 V1.2.1 (2004-08)
co-channel: A downlink co-channel refers to a transmission in downlink direction using the same frequency band of
5 MHz width. Up-link channels at the two sub-carrier frequencies related to the same downlink channel (downlink
centre frequency) are referred to as co-channels.
cross-polar discrimination, ellipticity of polarization: Antenna designed to transmit left hand circular waves may
transmit some right hand circular waves in addition. Cross-Polar Discrimination (XPD) is defined as the ratio
P /P of power P of the left hand circular polarized wave to the power P of the right hand circular
LHCP RHCP LHCP RHCP
wave when the total power of the transmitted wave is P + P
LHCP RHCP.
environmental profile: range of environmental conditions under which equipment within the scope of EN 300 674-1 is
required to comply with the provisions of EN 300 674-1
equivalent isotropically radiated power: signal power fed into an ideal loss-less antenna radiating equally in all
directions that generates the same power flux at a reference distance as the one generated by a signal fed into the
antenna under consideration in a predefined direction within its far field region
integral antenna: antenna, with or without a connector, designed as an indispensable part of the equipment
OBU sleep mode: OBU may be either in sleep mode, the stand-by mode, or the transmit mode. The sleep mode is an
optional mode for battery powered OBUs that allows to save battery power. In this mode, the OBU can only detect the
presence of a DSRC down-link signal which under certain defined conditions, see EN 12253 [2], will lead to wake-up,
i.e. a transition to the stand-by mode.
OBU stand-by mode: OBU may be either in sleep mode, the stand-by mode, or the transmit mode. The stand-by mode
is the mode, in which the OBU is capable of receiving DSRC down-link signals. In this mode the OBU is never
transmittin
...