ETSI EN 303 883-2 V1.2.1 (2021-02)
Short Range Devices (SRD) and Ultra Wide Band (UWB); Part 2: Measurement techniques for receiver requirements
Short Range Devices (SRD) and Ultra Wide Band (UWB); Part 2: Measurement techniques for receiver requirements
REN/ERM-TGUWB-149-2
Naprave kratkega dosega (SRD) in ultra širokopasovna (UWB) tehnologija - 2. del: Merilne tehnike za zahteve sprejemnika
General Information
Standards Content (Sample)
Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
EUROPEAN STANDARD
Short Range Devices (SRD) and
Ultra Wide Band (UWB);
Part 2: Measurement techniques
for receiver requirements
2 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
Reference
REN/ERM-TGUWB-149-2
Keywords
measurement, receiver, testing, UWB
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3 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
4 General . 11
5 Receiver Requirements. 12
5.1 General Guidance on RX measurement . 12
5.2 Receiver Spurious Emissions . 12
5.2.1 Description . 12
5.2.2 Limits . 12
5.2.3 Conformance. 13
5.2.3.1 General . 13
5.2.3.2 Step 1: Measurement with Peak Detector . 13
5.2.3.3 Step 2: Measurement with RMS Detector . 13
5.3 Use-Case Specific Input Parameters for Receiver Baseline Requirements . 14
5.3.1 Introduction. 14
5.3.2 Technical Wanted Performance Criteria . 14
5.3.3 Examples of Use-Case Specific Input Parameter for Receiver Tests . 15
5.3.3.1 Communication/Location Tracking Device . 15
5.3.3.2 Radio Determination Device (non-contact based) . 15
5.3.3.3 Material contact-based radio determination device . 17
5.4 Receiver Baseline Sensitivity (RBS) . 19
5.4.1 Description . 19
5.4.2 Limits . 19
5.4.3 Conformance. 20
5.4.3.1 General . 20
5.4.3.2 Conducted measurements for radio communication devices . 20
5.4.3.2.0 General . 20
5.4.3.2.1 Step 1: Technical Wanted Performance Criteria . 20
5.4.3.2.2 Step 2: Sensitivity Requirement (Power) . 20
5.4.3.2.3 Step 3: Measurement Procedure . 20
5.4.3.2.4 Step 4: Technical Wanted Performance Criteria Assessment . 22
5.4.3.3 Radiated Measurements for Radio Communication Devices with Power Limit . 22
5.4.3.3.0 General . 22
5.4.3.3.1 Step 1: Technical Wanted Performance Criteria . 22
5.4.3.3.2 Step 2: Sensitivity Requirement (Power) . 22
5.4.3.3.3 Step 3: Measurement Procedure . 22
5.4.3.3.4 Step 4: Technical Wanted Performance Criteria Assessment . 24
5.4.3.4 Radiated measurements for radio communication devices with distance limit . 24
5.4.3.4.0 General . 24
5.4.3.4.1 Step 1: Technical Wanted Performance Criteria . 24
5.4.3.4.2 Step 2: Sensitivity Requirement (Distance) . 24
5.4.3.4.3 Step 3: Measurement Procedure . 24
5.4.3.4.4 Step 4: Technical Wanted Performance Criteria Assessment . 25
5.4.3.5 Radiated Measurements for Radiodetermination Applications with Distance Limit . 25
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4 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
5.4.3.5.0 General . 25
5.4.3.5.1 Step 1: Technical Performance Criteria . 25
5.4.3.5.2 Step 2: Sensitivity Requirement (Distance) . 26
5.4.3.5.3 Step 3: Measurement Procedure . 26
5.4.3.5.4 Step 4: Technical Wanted Performance Criteria Assessment . 27
5.4.3.6 Conducted measurements for radio determination devices . 27
5.4.3.6.0 General . 27
5.4.3.6.1 Step 1: Technical Wanted Performance Criteria . 27
5.4.3.6.2 Step 2: Sensitivity Requirement (Power) . 27
5.4.3.6.3 Step 3: Measurement Procedure . 28
5.4.3.6.4 Step 4: Technical Wanted Performance Criteria Assessment . 29
5.5 Receiver Baseline Resilience (RBR) . 29
5.5.1 Description . 29
5.5.2 RBR Requirements . 29
5.5.2.1 Interferer test signal. 29
5.5.2.2 RBR wanted performance criteria . 29
5.5.3 Conformance. 30
5.5.3.1 General . 30
5.5.3.2 Conducted Measurements for Radio Communication Devices . 30
5.5.3.2.1 Step 1: Start with the RBS Setup . 30
5.5.3.2.2 Step 2: Adding Interfering Signal Source . 30
5.5.3.2.3 Step 3: Degradation of Sensitivity Requirement . 30
5.5.3.2.4 Step 4: Test of Technical Wanted Performance Criteria . 30
5.5.3.2.5 Step 5: Measurement Assessment . 31
5.5.3.2.6 Step 6: Repetition of steps 4 and 5 . 31
5.5.3.3 Radiated Measurements for Radio Communication Devices with Power Limit . 31
5.5.3.3.1 Step 1: Start with the RBS Setup . 31
5.5.3.3.2 Step 2: Adding Interfering Signal Source . 31
5.5.3.3.3 Step 3: Degradation of Sensitivity Requirement . 31
5.5.3.3.4 Step 4: Test of Technical Wanted Performance Criteria . 32
5.5.3.3.5 Step 5: Measurement Assessment . 32
5.5.3.3.6 Step 6: Repetition of steps 4 and 5 . 32
5.5.3.4 Radiated Measurements for Radio Communication Devices with Distance Limit . 32
5.5.3.4.1 Step 1: Start with the RBS setup. 32
5.5.3.4.2 Step 2: Adding interfering signal source . 32
5.5.3.4.3 Step 3: Degradation of Sensitivity Requirement . 33
5.5.3.4.4 Step 4: Test of Technical Wanted Performance Criteria . 33
5.5.3.4.5 Step 5: Measurement Assessment . 33
5.5.3.4.6 Step 6: Repetition of steps 4 and 5 . 33
5.5.3.5 Radiated Measurements for Radiodetermination Applications with Distance Limit . 33
5.5.3.5.1 Step 1: Start with the RBS Setup . 33
5.5.3.5.2 Step 2: Adding interfering signal source . 33
5.5.3.5.3 Step 3: Degradation of Sensitivity Requirement . 34
5.5.3.5.4 Step 4: Test of Technical Wanted Performance Criteria . 35
5.5.3.5.5 Step 5: Measurement Assessment . 35
5.5.3.5.6 Step 6: Repetition of steps 4 and 5 . 35
5.5.3.6 Conducted Measurements for Radio Determination Devices . 35
5.5.3.6.1 Step 1: Start with the RBS Setup . 35
5.5.3.6.2 Step 2: Adding Interfering Signal Source . 35
5.5.3.6.3 Step 3: Degradation of Sensitivity Requirement . 35
5.5.3.6.4 Step 4: Test of Technical Performance Criteria . 36
5.5.3.6.5 Step 5: Measurement Assessment . 36
5.5.3.6.6 Step 6: Repetition of steps 4 and 5 . 36
Annex A (normative): Choose interferer for RBR . 37
A.1 Introduction . 37
A.2 Limits for the Interfering Signals . 38
A.2.1 Interferer within OFR . 38
A.2.1.0 Introduction. 38
A.2.1.1 Option 1 . 38
A.2.1.2 Option 2 . 38
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5 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
A.2.2 Interferer outside OFR . 39
A.3 Guidance to Setup the Power Level of the Interfering Signals @ EUT for RBR tests . 39
A.3.1 Radiated tests . 39
A.3.2 Conducted tests . 41
Annex B (informative): Guidance on Scaling Receiver Sensitivity . 42
B.1 General . 42
B.2 Scaling of power at the EUT . 42
B.3 Scaling distance . 42
Annex C (informative): Justification of receiver requirements from ETSI EG 203 336 . 44
C.1 General . 44
C.2 Justification . 44
C.3 Summary for the RBR requirement . 46
C.4 Justification RBS-requirement for radio determination devices . 47
Annex D (informative): Object and Radar Cross Section . 49
D.1 Wanted objects . 49
D.2 Direct Object Reflectors . 51
D.3 Delay Line Object Reflectors . 53
D.4 Electronic Object Reflectors . 53
D.5 Test Setup with Conventional RCS within Chamber . 54
D.6 Test Setup with Radar Object Generator . 55
D.6.1 General . 55
Annex E (informative): Change History . 57
History . 58
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6 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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 (https://ipr.etsi.org/).
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.
Trademarks
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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
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Foreword
This draft European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility
and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote phase of the ETSI
standards EN Approval Procedure.
The present document is part 2 of a multi-part deliverable covering Short Range Devices (SRD) and Ultra Wide Band
(UWB), as identified below:
Part 1: "Measurement techniques for transmitter requirements";
Part 2: " Measurement techniques for receiver requirements".
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
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7 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
Introduction
The present document provides measurement procedures for receiver requirements to address the spectrum efficiency
requirements of the RED [i.10].
The basis for this RX concept was developed by ETSI during two Special Task Forces.
First Special Task Force: ETSI STF 494; Update of the UWB related Harmonised Standards covering the essential
requirements of article 3.2 of the RED [i.10].
The STF 494:
• Started: 2015-05-25
• Ended: 2016-03-31
Outcome:
ETSI TS 103 361 [i.4]
The second Special Task Force: ETSI STF 541; Signal interferer handling, a new RX requirement to cover the
essential requirements of article 3.2 of the RED [i.10], was a continuation to implement and consider comments
received after the publication of the ETSI TS 103 361 [i.4].
The STF 541:
• Started: 2017-10-06
• Ended: 2019-05-31
Outcome:
• ETSI TR 103 566 [i.2]
• ETSI TS 103 567 [i.3]
There is no specification of receiver parameter values within the present document. These values will be derived from
technical specification defined by the responsible ETSI Technical Committees and/or the findings of regulatory studies
conducted by the relevant bodies like CEPT ECC WG SE. The limits/values for the baseline RX-conformance
requirements will be specified in the related standard.
In addition to the two receiver baseline requirements it can be necessary that the RX spurious emission requirement
could be a further RX requirement in the related standard. This could be necessary if the EUT has a receive only mode
or if it is not collocated to the transmitter. The present document specifies the receiver spurious emission requirement
and the corresponding test and measurement procedure in clause 5.2.
The present document provides practical information and guidance for the compliance receiver tests of UWB and Short
Range technology and devices.
It is recommended that, in drafting the related standards, a thorough analysis is conducted on all possible applicable
receiver parameters (see annex C), selecting the most appropriate RX-requirements and having a robust reasoning for
those that are disregarded.
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8 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
1 Scope
The present document provides measurement procedures for receiver requirements to address the spectrum efficiency
requirements of the RED [i.10].
The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance
for HS development, which can be further refined by the responsible TB.
Baseline receiver concept comprises the following parameters:
• Receiver Baseline Sensitivity (RBS); and
• Receiver Baseline Resilience (RBR).
The Baseline receiver concept is a further development of the signal interferer handling concept, see ETSI
TS 103 361 [i.4].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
Not applicable.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EG 203 336 (V.1.2.1): "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.2] ETSI TR 103 566 (V.1.1.1): "Evaluation status on receiver requirement on Signal interferer
handling".
[i.3] ETSI TS 103 567 (V.1.1.1): "Requirements on signal interferer handling".
[i.4] ETSI TS 103 361 (V1.1.1): "Short Range Devices (SRD) using Ultra Wide Band technology
(UWB); Receiver technical requirements, parameters and measurement procedures to fulfil the
requirements of the Directive 2014/53/EU".
[i.5] ERC REC 74-01: "Unwanted emissions in the spurious domain", approved 1998, amended
29 May 2019.
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9 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
[i.6] ETSI EN 303 883-1 (V1.2.0): "Short Range Devices (SRD) using Ultra Wide Band (UWB);
Part 1: Measurement Techniques for transmitter requirements".
[i.7] "RCS measurement results for automotive related objects at 23-27 GHz"; Tom Schipper ; Joaquim
Fortuny-Guasch ; Dario Tarchi ; Lars Reichardt. Thomas Zwick. Proceedings of the 5th European
Conference on Antennas and Propagation (EUCAP).
[i.8] EUR - "Scientific and Technical Research Reports; Radar Cross Section Measurements of
Pedestrian Dummies and Humans in the 24/77 GHz Frequency Band". FORTUNY GUASCH
Joaquim and CHAREAU Jean-Marc, 2013.
[i.9] ETSI TR 103 181-2 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Short Range Devices (SRD) using Ultra Wide Band (UWB);Transmission characteristics Part 2:
UWB mitigation techniques".
[i.10] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC (RED).
[i.11] European Communications Office: "EFIS: ECO Frequency Information System".
.
NOTE: Available at https://www.efis.dk/
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
antenna port: physical port, for connection of an antenna used for intentional transmission and/or reception of radiated
RF energy
co-located: receiver is located in the same device/EUT housing as the transmitter
event failure rate: ratio of failed tests compared to total number of tests
mainbeam: direction of maximum radiation
Received Power at the EUT (P@EUT): received power at the EUT and represent the signal the EUT is able to detect.
P@EUT is similar to the specified sensitivity level for the EUT as specified in the related standard (kind of power (e.g.
dBm or dBm/MHz) and limit, see note)
NOTE: @ = .
@
Receiver Baseline Resilience (RBR): capability to maintain a pre-determined minimum acceptable level of
performance in the presence of unwanted signals over the frequency band of operation, applicable adjacent and remote
frequency bands
Receiver Baseline Sensitivity (RBS): capability to receive a wanted signal at application related defined input signal
levels while providing a pre-determined minimum acceptable level of technical performance
NOTE 1: The pre-determined minimum acceptable level of technical performance is the basis for all other receiver
parameter.
NOTE 2: The purpose of the sensitivity requirement is to assure a basic measure of efficient use of spectrum that
strikes balance between sensitivity and the need to avoid being sensitive to interference.
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10 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
σ Radar Cross Section
ΔD degradation of the distance from RBR test
∆f additional frequency range to increase the range (ORF ) for the RBR interferer assessment
RBR
A size of the antenna apperture
A effective area of the antenna [m²],
eff
att attenuation of the "Variable Attenuator" in [dB]
c the velocity of light [m/s]
ca cable attenuation
cf coupling factor of the coupler in [dB]
d degradation of the sensitivity in [dB]
g
dB decibel
dBi gain in decibels relative to an isotropic antenna
dBm gain in decibels relative to one milliwatt
dl attenuation of the "Delay Line" in [dB]
D distance between interfering antenna and EUT
int
D minimum distance from EUT to a specified object the EUT shall be able to detect
min
D real distance between EUT and target simulator in [m]
real
D minimum range from an ideal/companion source to the EUT (RX) value in [m]
sens
D scaled distance for the RBS tests
scal
D simulated target distance within target simulator in [m]
sim
f test frequency in [GHz]
f centre frequency of the EUT OFR
C
F lowest frequency of receiver spurious emission test
LOWER
F highest frequency of receiver spurious emission test
UPPER
G measurement antenna
measure
G measurement antenna gain in [dBi] at test frequency f
measure
g measurement test antenna gain in [dBi] at test frequency f
t
g EUT antenna gain in [dBi]
e
g measurement receiving test antenna gain in [dBi] at test frequency f
rt
G interfering transmit antenna
int
g antenna gain of test antenna to transmit interfering signal [dBi]
int
G gain of the receiving antenna
RX
il insertion loss of the coupler in [dB]
IP interfering Power@EUT
@EUT
IP outout power of the interference signal source (generator)
out
ORF Frequency range for the RBR interferer assessment
RBR
P Sensitivity @ EUT
@EUT
P measured transmitted power of the EUT [e.g. dBm/MHz] or in [W]
EUT
P measured received power with the spectrum analyser
meas
P output power of the signal generator A
out
P maximum regulated radiated emission for ideal TX/companion device
reg
P power received back from the object by the EUT [W]
RX
P measured transmitted power from the EUT in [dB]
trans
P transmitter power [W]
TX
RBR frequency range for the RBR interferer assessment (ORF + 2 ∆f)
in-band RBR
RX sensitivity limit at antenna port
ref
RX scaled sensitivity limit for the RBS test
refsense
SCP Scaling factor (absolute value)
X symbol for a value/limit specified in the related standard
VALUE
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACS Adjacent Channel Selectivity
ADM Accuracy in Distance Measurement
BER Bit Error Rate
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11 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
CATR Compliant And TRansportable far-field
CW Continuous Wave
DAA Detect And Avoid
ECO European Communications Office
EFIS ECO Frequency Information System
EFR Event Failure Ratio
EUT Equipment Under Test
EUT-RX Receiver of the Equipment Under Test
FCC Federal Communications Commission
FMCW Frequency Modulated Continuous Wave
HH Horizontal - Horizontal
LAES Location tracking Applications for Emergency Services
LBT Listen Before Talk
LT1 Location Tracking type 1
LT2 Location Tracking type 2
MIMO Multiple Input Multiple Output
NA Not Applicable
ODP Object Detection Probability
OFR Operating Frequency Range
OOB Out Of Band
OTA Over The Air
PER Packet Error Rate
RBR Receiver Baseline Resilience
RBS Receiver Baseline Sensitivity
RBW Resolution BandWidth
RC Remote Consensus
RCS Radar Cross Section
RED Radio Equipment Directive
RF Radio Frequency
RMS Root Mean of Squares
RP Radiated Power
RX Receiver
SE Spectrum Engineering
SRD Short Range Device
STF Special Task Force of ETSI
TPC Total Power Control
TX Transmitter
UWB Ultra Wide Band
VBW Video BandWidth
VV Vertical - Vertical
4 General
The present document provides practical information and guidance for the compliance receiver tests of UWB and Short
Range technology and devices.
The baseline receiver requirements were developed based on the findings of ETSI TR 103 566 [i.2] and ETSI
TS 103 567 [i.3], where the signal interferer handling concept from ETSI TS 103 361 [i.4] has been analysed on its
applicability for the RED [i.10].
The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance
for harmonised standard development, which can be further refined by the responsible TB.
Baseline receiver concept comprises the following parameters:
• Receiver Baseline Sensitivity (RBS); see clause 5.4 and
• Receiver Baseline Resilience (RBR); see clause 5.5.
The baseline receiver concept is a further development of the signal interferer handling concept, see ETSI
TS 103 361 [i.4].
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12 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
In annex C these two parameters are put in relation to existing receiver parameters given in ETSI EG 203 336 [i.1] and
the assessments prepared by ETSI STF 494 and 541. Annex C additionally provides the summary
assessment/justification for this new baseline receiver concept described in the present document.
5 Receiver Requirements
5.1 General Guidance on RX measurement
Complementary information to the conformance tests in the clauses below are provided in annexes A and B of ETSI
EN 303 883-1 [i.6], for example:
• test conditions, power supply and ambient temperatures (see clause A.5 of ETSI EN 303 883-1 [i.6]);
• measurement uncertainty and the interpretation of the measurement results (see clause A.8 of ETSI
EN 303 883-1 [i.6]);
• test setups and radiated measurements (see annex B of ETSI EN 303 883-1 [i.6]).
5.2 Receiver Spurious Emissions
5.2.1 Description
The RX spurious emissions shall be measured within the frequency range defined in table 2.
Only applicable for receive only EUT (TX not present) or for EUT which has a receive only mode (TX inactive).
5.2.2 Limits
The limit for RX spurious emissions could be provided in the applicable related standard
If no limits for RX spurious emissions are provided in the related standard, then the limits in table 1 shall apply.
Table 1: Receiver spurious emission limits [i.5]
Frequency range Limit values
F to 1 000 MHz (see note) -57 dBm
LOWER
1 GHz < f ≤ FUPPER (see note) -47 dBm
NOTE: FUPPER and FLOWER are linked with the OFR of the EUT, see table 2.
Table 2: Frequency range for the RX spurious emission test, linked with EUT OFR [i.5]
Fundamental frequency range Frequency range for measurements
defined by f and f (see note 2)
L H Lower frequency (FLOWER) (see note 3) Upper frequency (FUPPER)
300 - 600 MHz 30 MHz 3 GHz
th
600 MHz - 5,2 GHz 30 MHz 5 harmonic (see note 1)
5,2 - 13 GHz 30 MHz 26 GHz
nd
13 - 150 GHz 30 MHz 2 harmonic (see note 1)
150 - 300 GHz 30 MHz 300 GHz
NOTE 1: F is the stated harmonic of f (the upper edge of the OFR, which is measured in ETSI EN 303 883-1 [i.6],
UPPER H
clause 5.2).
NOTE 2: FLOWER has to be selected based on fL and FUPPER based on fH (fL and fH can be measured according to ETSI
EN 303 883-1 [i.6], clause 5.2); for receive only devices f and f of the related EUT/companion device shall
H L
be used.
NOTE 3: For EUT operating below 300 MHz the spurious emissions limits below 30 MHz shall be specified in the
related standard.
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13 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
5.2.3 Conformance
5.2.3.1 General
The following conformance test shall be used for RX unwanted emissions (OOB and spurious emissions) if not
otherwise specified in the related standard.
The conformance test shall be performed in two steps:
• Step 1: pre-scan with peak detector (see clause 5.2.3.2);
• Step 2: if necessary, measurement with RMS detector (see clause 5.2.3.3).
NOTE: The split in two steps is done because: a complete scan with RMS could take a long time. The
measurement with peak detector is an "overestimation" of the emission and is only to find the frequencies
with the highest emissions that will be verified in step 2.
5.2.3.2 Step 1: Measurement with Peak Detector
The following spectrum analyser settings shall be used:
• Start frequency: F
LOWER
• Stop frequency: F
UPPER
NOTE 1: There could be a need to split the measurement into different frequency ranges depending on the
measurement set-up (e.g. external mixers, bandwidth of antennas and waveguides, RBW).
• Resolution BandWidth (RBW):
- ≥ 100 kHz between 30 MHz and 1 GHz.
- ≥ 1 MHz above 1 GHz.
• Video BandWidth (VBW): ≥ RBW
• Detector mode: peak
• Trace mode: max hold
• Sweep time: wait until the reading in the display is stable
NOTE 2: The peak detector is sensitive to corruption by events occurring only once or for a very small amount of
time and/or caused by different devices than the EUT.
NOTE 3: If the signal repetition of the EUT is known the measurement time per measurement point is equal or
larger of the signal repetition time.
NOTE 4: The number of measurement points has to be at least equal or higher than the span of the spectrum
analyser divided by the RBW.
Assessment of step 1: Compare the measurement results with the limit (see related standard and table 1) and record the
frequencies where the limit is exceeded. For these frequencies go to step 2 (clause 5.2.3.3).
5.2.3.3 Step 2: Measurement with RMS Detector
• Set the spectrum analyser to zero span mode.
• Resolution BandWidth (RBW):
- 100 kHz between 30 MHz and 1 GHz.
- 1 MHz above 1 GHz.
ETSI
14 Draft ETSI EN 303 883-2 V1.2.0 (2020-07)
• Video BandWidth (VBW): ≥ RBW
• Detector mode: peak
• Trace mode: clear write
• Sweep time: 1 s; if nothing different is specified in the related standard:
a) Set the spectrum analyser to the first recorded frequency from step 1 (clause 5.2.3.2).
b) Measure and record the spurious emission value over the sweep time.
c) Calculate the RMS value over the sweep time, using the post processing capability function of the
spectrum analyser.
d) Record the calculated RMS value and compare it against the limit (see related standard and table 1).
e) Repeat b) - d) for all frequencies from step 1.
5.3 Use-Case Specific Input Parameters for Receiver Baseline
Requirements
5.3.1 Introduction
A meaningful test of receiver requirements is only possible with knowledge of the intended use (use cases) of the EUT.
Therefore, the related standard (which is mostly use case specific) needs to provide all required use case specific input
parameters for the receiver tests, such as:
• Technical wanted performance criteria to quantify the EUT output (e.g. BER in [%], PER in [%], False alarm
rate, detection probability in [%], distance degradation).
• Sensitivity or distance limit for a radio communication application and/or a radiodetermination application.
• The RCS and the movement/velocity of the reference target for a radiodetermination application.
More information on possible parameters to be made available in related standards are offered in
...
Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
EUROPEAN STANDARD
Short Range Devices (SRD) and
Ultra Wide Band (UWB);
Part 2: Measurement techniques
for receiver requirements
2 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
Reference
REN/ERM-TGUWB-149-2
Keywords
measurement, receiver, testing, UWB
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ETSI
3 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 11
4 General . 12
5 Receiver Requirements. 12
5.1 General Guidance on RX measurement . 12
5.2 Receiver Spurious Emissions . 12
5.2.1 Description . 12
5.2.2 Limits . 12
5.2.3 Conformance. 13
5.2.3.1 General . 13
5.2.3.2 Step 1: Measurement with Peak Detector . 13
5.2.3.3 Step 2: Measurement with RMS Detector . 14
5.3 Use-Case Specific Input Parameters for Receiver Baseline Requirements . 14
5.3.1 Introduction. 14
5.3.2 Technical Wanted Performance Criteria . 15
5.3.3 Examples of Use-Case Specific Input Parameter for Receiver Tests . 15
5.3.3.1 Communication/Location Tracking Device . 15
5.3.3.2 Radio Determination Device (non-contact based) . 16
5.3.3.3 Material contact-based radio determination device . 18
5.4 Receiver Baseline Sensitivity (RBS) . 20
5.4.1 Description . 20
5.4.2 Limits . 20
5.4.3 Conformance. 21
5.4.3.1 General . 21
5.4.3.2 Conducted measurements for radio communication devices . 21
5.4.3.2.0 General . 21
5.4.3.2.1 Step 1: Technical Wanted Performance Criteria . 21
5.4.3.2.2 Step 2: Sensitivity Requirement (Power) . 21
5.4.3.2.3 Step 3: Measurement Procedure . 21
5.4.3.2.4 Step 4: Technical Wanted Performance Criteria Assessment . 23
5.4.3.3 Radiated Measurements for Radio Communication Devices with Power Limit . 23
5.4.3.3.0 General . 23
5.4.3.3.1 Step 1: Technical Wanted Performance Criteria . 23
5.4.3.3.2 Step 2: Sensitivity Requirement (Power) . 23
5.4.3.3.3 Step 3: Measurement Procedure . 23
5.4.3.3.4 Step 4: Technical Wanted Performance Criteria Assessment . 25
5.4.3.4 Radiated measurements for radio communication devices with distance limit . 25
5.4.3.4.0 General . 25
5.4.3.4.1 Step 1: Technical Wanted Performance Criteria . 25
5.4.3.4.2 Step 2: Sensitivity Requirement (Distance) . 25
5.4.3.4.3 Step 3: Measurement Procedure . 26
5.4.3.4.4 Step 4: Technical Wanted Performance Criteria Assessment . 26
5.4.3.5 Radiated Measurements for Radiodetermination Applications with Distance Limit . 26
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4 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
5.4.3.5.0 General . 26
5.4.3.5.1 Step 1: Technical Performance Criteria . 26
5.4.3.5.2 Step 2: Sensitivity Requirement (Distance) . 27
5.4.3.5.3 Step 3: Measurement Procedure . 27
5.4.3.5.4 Step 4: Technical Wanted Performance Criteria Assessment . 28
5.4.3.6 Conducted measurements for radio determination devices . 28
5.4.3.6.0 General . 28
5.4.3.6.1 Step 1: Technical Wanted Performance Criteria . 28
5.4.3.6.2 Step 2: Sensitivity Requirement (Power) . 28
5.4.3.6.3 Step 3: Measurement Procedure . 29
5.4.3.6.4 Step 4: Technical Wanted Performance Criteria Assessment . 30
5.5 Receiver Baseline Resilience (RBR) . 30
5.5.1 Description . 30
5.5.2 RBR Requirements . 30
5.5.2.1 Interferer test signal. 30
5.5.2.2 RBR wanted performance criteria . 30
5.5.3 Conformance. 31
5.5.3.1 General . 31
5.5.3.2 Conducted Measurements for Radio Communication Devices . 31
5.5.3.2.1 Step 1: Start with the RBS Setup . 31
5.5.3.2.2 Step 2: Adding Interfering Signal Source . 31
5.5.3.2.3 Step 3: Degradation of Sensitivity Requirement . 31
5.5.3.2.4 Step 4: Test of Technical Wanted Performance Criteria . 31
5.5.3.2.5 Step 5: Measurement Assessment . 32
5.5.3.2.6 Step 6: Repetition of steps 4 and 5 . 32
5.5.3.3 Radiated Measurements for Radio Communication Devices with Power Limit . 32
5.5.3.3.1 Step 1: Start with the RBS Setup . 32
5.5.3.3.2 Step 2: Adding Interfering Signal Source . 32
5.5.3.3.3 Step 3: Degradation of Sensitivity Requirement . 32
5.5.3.3.4 Step 4: Test of Technical Wanted Performance Criteria . 33
5.5.3.3.5 Step 5: Measurement Assessment . 33
5.5.3.3.6 Step 6: Repetition of steps 4 and 5 . 33
5.5.3.4 Radiated Measurements for Radio Communication Devices with Distance Limit . 33
5.5.3.4.1 Step 1: Start with the RBS setup. 33
5.5.3.4.2 Step 2: Adding interfering signal source . 33
5.5.3.4.3 Step 3: Degradation of Sensitivity Requirement . 34
5.5.3.4.4 Step 4: Test of Technical Wanted Performance Criteria . 34
5.5.3.4.5 Step 5: Measurement Assessment . 34
5.5.3.4.6 Step 6: Repetition of steps 4 and 5 . 34
5.5.3.5 Radiated Measurements for Radiodetermination Applications with Distance Limit . 34
5.5.3.5.1 Step 1: Start with the RBS Setup . 34
5.5.3.5.2 Step 2: Adding interfering signal source . 34
5.5.3.5.3 Step 3: Degradation of Sensitivity Requirement . 35
5.5.3.5.4 Step 4: Test of Technical Wanted Performance Criteria . 36
5.5.3.5.5 Step 5: Measurement Assessment . 36
5.5.3.5.6 Step 6: Repetition of steps 4 and 5 . 36
5.5.3.6 Conducted Measurements for Radio Determination Devices . 36
5.5.3.6.1 Step 1: Start with the RBS Setup . 36
5.5.3.6.2 Step 2: Adding Interfering Signal Source . 36
5.5.3.6.3 Step 3: Degradation of Sensitivity Requirement . 36
5.5.3.6.4 Step 4: Test of Technical Performance Criteria . 37
5.5.3.6.5 Step 5: Measurement Assessment . 37
5.5.3.6.6 Step 6: Repetition of steps 4 and 5 . 37
Annex A (normative): Choose interferer for RBR . 38
A.1 Introduction . 38
A.2 Limits for the Interfering Signals . 39
A.2.1 Interferer within OFR . 39
A.2.1.0 Introduction. 39
A.2.1.1 Option 1 . 39
A.2.1.2 Option 2 . 39
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5 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
A.2.2 Interferer outside OFR . 40
A.3 Guidance to Setup the Power Level of the Interfering Signals @ EUT for RBR tests . 40
A.3.1 Radiated tests . 40
A.3.2 Conducted tests . 42
Annex B (informative): Guidance on Scaling Receiver Sensitivity . 43
B.1 General . 43
B.2 Scaling of power at the EUT . 43
B.3 Scaling distance . 44
Annex C (informative): Justification of receiver requirements from ETSI EG 203 336 . 45
C.1 General . 45
C.2 Justification . 45
C.3 Summary for the RBR requirement . 47
C.4 Justification RBS-requirement for radio determination devices . 48
Annex D (informative): Object and Radar Cross Section . 50
D.1 Wanted objects . 50
D.2 Direct Object Reflectors . 52
D.3 Delay Line Object Reflectors . 54
D.4 Electronic Object Reflectors . 54
D.5 Test Setup with Conventional RCS within Chamber . 55
D.6 Test Setup with Radar Object Generator . 56
D.6.1 General . 56
Annex E (informative): Change History . 58
History . 59
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6 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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 (https://ipr.etsi.org/).
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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This final draft European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM), and is now submitted for the Vote phase of the ETSI standards EN
Approval Procedure.
The present document is part 2 of a multi-part deliverable covering Short Range Devices (SRD) and Ultra Wide Band
(UWB), as identified below:
Part 1: "Measurement techniques for transmitter requirements";
Part 2: "Measurement techniques for receiver requirements".
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
7 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
Introduction
The present document provides measurement procedures for receiver requirements to address the spectrum efficiency
requirements of the RED [i.10].
The basis for this RX concept was developed by ETSI during two Special Task Forces.
First Special Task Force: ETSI STF 494; Update of the UWB related Harmonised Standards covering the essential
requirements of article 3.2 of the RED [i.10].
The STF 494:
• Started: 2015-05-25
• Ended: 2016-03-31
Outcome:
• ETSI TS 103 361 [i.4]
The second Special Task Force: ETSI STF 541; Signal interferer handling, a new RX requirement to cover the
essential requirements of article 3.2 of the RED [i.10], was a continuation to implement and consider comments
received after the publication of the ETSI TS 103 361 [i.4].
The STF 541:
• Started: 2017-10-06
• Ended: 2019-05-31
Outcome:
• ETSI TR 103 566 [i.2]
• ETSI TS 103 567 [i.3]
There is no specification of receiver parameter values within the present document. These values will be derived from
technical specification defined by the responsible ETSI Technical Committees and/or the findings of regulatory studies
conducted by the relevant bodies like CEPT ECC WG SE. The limits/values for the baseline RX-conformance
requirements will be specified in the related standard.
In addition to the two receiver baseline requirements it can be necessary that the RX spurious emission requirement
could be a further RX requirement in the related standard. This could be necessary if the EUT has a receive only mode
or if it is not collocated to the transmitter. The present document specifies the receiver spurious emission requirement
and the corresponding test and measurement procedure in clause 5.2.
The present document provides practical information and guidance for the compliance receiver tests of UWB and Short
Range technology and devices.
It is recommended that, in drafting the related standards, a thorough analysis is conducted on all possible applicable
receiver parameters (see annex C), selecting the most appropriate RX-requirements and having a robust reasoning for
those that are disregarded.
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8 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
1 Scope
The present document provides measurement procedures for receiver requirements to address the spectrum efficiency
requirements of the RED [i.10].
The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance
for HS development, which can be further refined by the responsible TB.
Baseline receiver concept comprises the following parameters:
• Receiver Baseline Sensitivity (RBS); and
• Receiver Baseline Resilience (RBR).
The Baseline receiver concept is a further development of the signal interferer handling concept, see ETSI
TS 103 361 [i.4].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
Not applicable.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EG 203 336 (V1.2.1): "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.2] ETSI TR 103 566 (V1.1.1): "Evaluation status on receiver requirement on Signal interferer
handling".
[i.3] ETSI TS 103 567 (V1.1.1): "Requirements on signal interferer handling".
[i.4] ETSI TS 103 361 (V1.1.1): "Short Range Devices (SRD) using Ultra Wide Band technology
(UWB); Receiver technical requirements, parameters and measurement procedures to fulfil the
requirements of the Directive 2014/53/EU".
ETSI
9 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
[i.5] ERC REC 74-01: "Unwanted emissions in the spurious domain", approved 1998, amended
29 May 2019.
[i.6] ETSI EN 303 883-1 (V1.2.0): "Short Range Devices (SRD) and Ultra Wide Band (UWB); Part 1:
Measurement techniques for transmitter requirements".
[i.7] "RCS measurement results for automotive related objects at 23-27 GHz"; Tom Schipper; Joaquim
th
Fortuny-Guasch; Dario Tarchi; Lars Reichardt; Thomas Zwick. Proceedings of the 5 European
Conference on Antennas and Propagation (EUCAP).
[i.8] EUR - Scientific and Technical Research Reports: "Radar Cross Section Measurements of
Pedestrian Dummies and Humans in the 24/77 GHz Frequency Band". FORTUNY GUASCH
Joaquim and CHAREAU Jean-Marc, 2013.
[i.9] ETSI TR 103 181-2 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Short Range Devices (SRD) using Ultra Wide Band (UWB);Transmission characteristics Part 2:
UWB mitigation techniques".
[i.10] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC (RED).
[i.11] European Communications Office: "EFIS: ECO Frequency Information System".
NOTE: Available at https://efis.cept.org/.
[i.12] ETSI TR 103 181-1 (V1.1.1): "Short Range Devices (SRD) using Ultra Wide Band (UWB);
Technical Report Part 1: UWB signal characteristics and overview CEPT/ECC and EC
regulation".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
antenna port: physical port, for connection of an antenna used for intentional transmission and/or reception of radiated
RF energy
co-located: receiver is located in the same device/EUT housing as the transmitter
event failure rate: ratio of failed tests compared to total number of tests
mainbeam: direction of maximum radiation
Received Power at the EUT (P ): received power at the EUT and represents the signal the EUT is able to detect.
@EUT
P is similar to the specified sensitivity level for the EUT as specified in the related standard (kind of power
@EUT
(e.g. dBm or dBm/MHz) and limit, see note)
NOTE: @ = .
@
Receiver Baseline Resilience (RBR): capability to maintain a pre-determined minimum acceptable level of
performance in the presence of unwanted signals over the frequency band of operation, applicable adjacent and remote
frequency bands
Receiver Baseline Sensitivity (RBS): capability to receive a wanted signal at application related defined input signal
levels while providing a pre-determined minimum acceptable level of technical performance
NOTE 1: The pre-determined minimum acceptable level of technical performance is the basis for all other receiver
parameters.
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10 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
NOTE 2: The purpose of the sensitivity requirement is to assure a basic measure of efficient use of spectrum that
strikes balance between sensitivity and the need to avoid being sensitive to interference.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
σ Radar Cross Section
ΔD degradation of the distance from RBR test
∆f additional frequency range to increase the range (ORF ) for the RBR interferer assessment
RBR
A size of the antenna aperture
A effective area of the antenna [m²]
eff
att attenuation of the "Variable Attenuator" in [dB]
c the velocity of light [m/s]
ca cable attenuation
cf coupling factor of the coupler in [dB]
d degradation of the sensitivity in [dB]
g
dB decibel
dBi gain in decibels relative to an isotropic antenna
dBm gain in decibels relative to one milliwatt
dl attenuation of the "Delay Line" in [dB]
D distance between interfering antenna and EUT
int
D minimum distance from EUT to a specified object the EUT is able to detect
min
D real distance between EUT and target simulator in [m]
real
D minimum range from an ideal/companion source to the EUT (RX) value in [m]
sens
D scaled distance for the RBS tests
scal
D simulated target distance within target simulator in [m]
sim
f test frequency in [GHz]
f centre frequency of the EUT OFR
C
F lowest frequency of receiver spurious emission test
LOWER
F highest frequency of receiver spurious emission test
UPPER
g measurement antenna gain in [dBi] at test frequency f
measure
g measurement test antenna gain in [dBi] at test frequency f
t
g EUT antenna gain in [dBi]
e
g measurement receiving test antenna gain in [dBi] at test frequency f
rt
G interfering transmit antenna
int
g antenna gain of test antenna to transmit interfering signal [dBi]
int
G gain of the receiving antenna
RX
G gain of the transmitting antenna
TX
il insertion loss of the coupler in [dB]
IP interfering Power@EUT
@EUT
IP output power of the interference signal source (generator)
out
ORF Frequency range for the RBR interferer assessment
RBR
P Sensitivity @ EUT
@EUT
P measured transmitted power of the EUT [e.g. dBm/MHz] or in [W]
EUT
P measured received power with the spectrum analyser
meas
P output power of the signal generator A
out
P maximum regulated radiated emission for ideal TX/companion device
reg
P power received back from the object by the EUT [W]
RX
P measured transmitted power from the EUT in [dB]
trans
P transmitter power [W]
TX
RBR frequency range for the RBR interferer assessment (ORF + 2 ∆f)
in-band RBR
RX sensitivity limit at antenna port
ref
RX scaled sensitivity limit for the RBS test
refsense
SCP Scaling factor (absolute value)
X symbol for a value/limit specified in the related standard
VALUE
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11 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACS Adjacent Channel Selectivity
ADM Accuracy in Distance Measurement
BER Bit Error Rate
CATR Compliant And TRansportable far-field
CEPT European Conference of Postal and Telecommunications administrations
CW Continuous Wave
DAA Detect And Avoid
ECC Electronic Communications Committee
ECO European Communications Office
EFIS ECO Frequency Information System
EFR Event Failure Ratio
EN European Norm
ENAP EN Approval Process
ERM Electromagnetic compatibility and Radio spectrum Matters
EUT Equipment Under Test
EUT-RX Receiver of the Equipment Under Test
FCC Federal Communications Commission
FMCW Frequency Modulated Continuous Wave
HH Horizontal - Horizontal
LAES Location tracking Applications for Emergency Services
LBT Listen Before Talk
LT1 Location Tracking type 1
LT2 Location Tracking type 2
MIMO Multiple Input Multiple Output
NA Not Applicable
ODP Object Detection Probability
OFR Operating Frequency Range
OOB Out Of Band
OTA Over The Air
PER Packet Error Rate
RBR Receiver Baseline Resilience
RBS Receiver Baseline Sensitivity
RBW Resolution BandWidth
RC Remote Consensus
RCS Radar Cross Section
RED Radio Equipment Directive
RF Radio Frequency
RMS Root Mean of Squares
RP Radiated Power
RX Receiver
SE Spectrum Engineering
SRD Short Range Device
STF Special Task Force of ETSI
TB Technical Body
TG Technical Group
TPC Total Power Control
TX Transmitter
UWB Ultra Wide Band
VBW Video BandWidth
VV Vertical - Vertical
WG Working Group
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12 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
4 General
The present document provides practical information and guidance for the compliance receiver tests of UWB and Short
Range technology and devices.
The baseline receiver requirements were developed based on the findings of ETSI TR 103 566 [i.2] and ETSI
TS 103 567 [i.3], where the signal interferer handling concept from ETSI TS 103 361 [i.4] has been analysed on its
applicability for the RED [i.10].
The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance
for harmonised standard development, which can be further refined by the responsible TB.
Baseline receiver concept comprises the following parameters:
• Receiver Baseline Sensitivity (RBS); see clause 5.4; and
• Receiver Baseline Resilience (RBR); see clause 5.5.
The baseline receiver concept is a further development of the signal interferer handling concept, see ETSI
TS 103 361 [i.4].
In annex C these two parameters are put in relation to existing receiver parameters given in ETSI EG 203 336 [i.1] and
the assessments prepared by ETSI STF 494 and 541. Annex C additionally provides the summary
assessment/justification for this new baseline receiver concept described in the present document.
5 Receiver Requirements
5.1 General Guidance on RX measurement
Complementary information to the conformance tests in the clauses below are provided in annexes A and B of ETSI
EN 303 883-1 [i.6], for example:
• test conditions, power supply and ambient temperatures (see clause A.5 of ETSI EN 303 883-1 [i.6]);
• measurement uncertainty and the interpretation of the measurement results (see clause A.8 of ETSI
EN 303 883-1 [i.6]);
• test setups and radiated measurements (see annex B of ETSI EN 303 883-1 [i.6]).
5.2 Receiver Spurious Emissions
5.2.1 Description
The RX spurious emissions shall be measured within the frequency range defined in table 2.
Only applicable for receive only EUT (TX not present) or for EUT which has a receive only mode (TX inactive).
5.2.2 Limits
The limit for RX spurious emissions could be provided in the applicable related standard
If no limits for RX spurious emissions are provided in the related standard, then the limits in table 1 shall apply.
ETSI
13 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
Table 1: Receiver spurious emission limits in line with ERC REC 74-01 [i.5]
Frequency range Limit values
FLOWER to 1 000 MHz (see note) -57 dBm
1 GHz < f ≤ F (see note) -47 dBm
UPPER
NOTE: F and F are linked with the OFR of the EUT, see table 2.
UPPER LOWER
Table 2: Frequency range for the RX spurious emission test, linked with EUT OFR
in line with ERC REC 74-01 [i.5]
Fundamental frequency range Frequency range for measurements
defined by f and f (see note 2)
L H Lower frequency (FLOWER) (see note 3) Upper frequency (FUPPER)
300 - 600 MHz 30 MHz 3 GHz
th
600 MHz - 5,2 GHz 30 MHz 5 harmonic (see note 1)
5,2 - 13 GHz 30 MHz 26 GHz
nd
13 - 150 GHz 30 MHz 2 harmonic (see note 1)
150 - 300 GHz 30 MHz 300 GHz
NOTE 1: F is the stated harmonic of f (the upper edge of the OFR, which is measured in ETSI EN 303 883-1 [i.6],
UPPER H
clause 5.2).
NOTE 2: FLOWER has to be selected based on fL and FUPPER based on fH (fL and fH can be measured according to ETSI
EN 303 883-1 [i.6], clause 5.2); for receive only devices f and f of the related EUT/companion device shall
H L
be used.
NOTE 3: For EUT operating below 300 MHz the spurious emissions limits below 30 MHz shall be specified in the
related standard.
5.2.3 Conformance
5.2.3.1 General
The following conformance test shall be used for RX unwanted emissions (OOB and spurious emissions) if not
otherwise specified in the related standard.
The conformance test shall be performed in two steps:
• step 1: pre-scan with peak detector (see clause 5.2.3.2);
• step 2: if necessary, measurement with RMS detector (see clause 5.2.3.3).
NOTE: The split in two steps is done because: a complete scan with RMS could take a long time. The
measurement with peak detector is an "overestimation" of the emission and is only to find the frequencies
with the highest emissions that will be verified in step 2.
5.2.3.2 Step 1: Measurement with Peak Detector
The following spectrum analyser settings shall be used:
• Start frequency: F
LOWER
• Stop frequency: F
UPPER
NOTE 1: There could be a need to split the measurement into different frequency ranges depending on the
measurement set-up (e.g. external mixers, bandwidth of antennas and waveguides, RBW).
• Resolution BandWidth (RBW):
- ≥ 100 kHz between 30 MHz and 1 GHz
- ≥ 1 MHz above 1 GHz
• Video BandWidth (VBW): ≥ RBW
• Detector mode: peak
ETSI
14 Final draft ETSI EN 303 883-2 V1.2.1 (2020-12)
• Trace mode: max hold
• Sweep time: wait until the reading in the display is stable
NOTE 2: The peak detector is sensitive to corruption by events occurring only once or for a very small amount of
time and/or caused by different devices than the EUT.
NOTE 3: If the signal repetition of the EUT is known the measurement time per measurement point is equal or
larger of the signal repetition time.
NOTE 4: The number of measurement points has to be at least equal or higher than the span of the spectrum
analyser divided by the RBW.
Assessment of step 1: Compare the measurement results with the limit (see related standard and table 1) and record the
frequencies where the limit is exceeded. For these frequencies go to step 2 (clause 5.2.3.3).
5.2.3.3 Step 2: Measurement with RMS Detector
• Set the spectrum analyser to zero span mode
• Resolution BandWidth (RBW):
- 100 kHz between 30 MHz and 1 GHz
- 1 MHz above 1 GHz
• Video BandWidth (VBW): ≥ RBW
• Detector mode: peak
• Trace mode: clear write
• Sweep time: 1 s; if nothing different is specified in the related standard:
a) Set the spectrum analyser to the first recorded frequency from step 1 (clause 5.2.3.2).
b) Measure and record the spurious emission value over the sweep time.
c) Calculate the RMS value over the sweep time, using the post processing capability function of the
spectrum analyser.
d) Record the calculated RMS value and compare it against the limit (see related standard and table 1).
e) Repeat b) - d) for all frequencies from step 1.
5.3 Use-Case Specific Input Parameters for Receiver Baseline
Requirements
5.3.1 Introduction
A meaningful test of receiver requirements is only possible with knowledge of the intended use (use cases) of t
...
EUROPEAN STANDARD
Short Range Devices (SRD) and
Ultra Wide Band (UWB);
Part 2: Measurement techniques
for receiver requirements
2 ETSI EN 303 883-2 V1.2.1 (2021-02)
Reference
REN/ERM-TGUWB-149-2
Keywords
measurement, receiver, testing, UWB
ETSI
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ETSI
3 ETSI EN 303 883-2 V1.2.1 (2021-02)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 11
4 General . 12
5 Receiver Requirements. 12
5.1 General Guidance on RX measurement . 12
5.2 Receiver Spurious Emissions . 12
5.2.1 Description . 12
5.2.2 Limits . 12
5.2.3 Conformance. 13
5.2.3.1 General . 13
5.2.3.2 Step 1: Measurement with Peak Detector . 13
5.2.3.3 Step 2: Measurement with RMS Detector . 14
5.3 Use-Case Specific Input Parameters for Receiver Baseline Requirements . 14
5.3.1 Introduction. 14
5.3.2 Technical Wanted Performance Criteria . 15
5.3.3 Examples of Use-Case Specific Input Parameter for Receiver Tests . 15
5.3.3.1 Communication/Location Tracking Device . 15
5.3.3.2 Radio Determination Device (non-contact based) . 16
5.3.3.3 Material contact-based radio determination device . 18
5.4 Receiver Baseline Sensitivity (RBS) . 20
5.4.1 Description . 20
5.4.2 Limits . 20
5.4.3 Conformance. 21
5.4.3.1 General . 21
5.4.3.2 Conducted measurements for radio communication devices . 21
5.4.3.2.0 General . 21
5.4.3.2.1 Step 1: Technical Wanted Performance Criteria . 21
5.4.3.2.2 Step 2: Sensitivity Requirement (Power) . 21
5.4.3.2.3 Step 3: Measurement Procedure . 21
5.4.3.2.4 Step 4: Technical Wanted Performance Criteria Assessment . 23
5.4.3.3 Radiated Measurements for Radio Communication Devices with Power Limit . 23
5.4.3.3.0 General . 23
5.4.3.3.1 Step 1: Technical Wanted Performance Criteria . 23
5.4.3.3.2 Step 2: Sensitivity Requirement (Power) . 23
5.4.3.3.3 Step 3: Measurement Procedure . 23
5.4.3.3.4 Step 4: Technical Wanted Performance Criteria Assessment . 25
5.4.3.4 Radiated measurements for radio communication devices with distance limit . 25
5.4.3.4.0 General . 25
5.4.3.4.1 Step 1: Technical Wanted Performance Criteria . 25
5.4.3.4.2 Step 2: Sensitivity Requirement (Distance) . 25
5.4.3.4.3 Step 3: Measurement Procedure . 26
5.4.3.4.4 Step 4: Technical Wanted Performance Criteria Assessment . 26
5.4.3.5 Radiated Measurements for Radiodetermination Applications with Distance Limit . 26
ETSI
4 ETSI EN 303 883-2 V1.2.1 (2021-02)
5.4.3.5.0 General . 26
5.4.3.5.1 Step 1: Technical Performance Criteria . 26
5.4.3.5.2 Step 2: Sensitivity Requirement (Distance) . 27
5.4.3.5.3 Step 3: Measurement Procedure . 27
5.4.3.5.4 Step 4: Technical Wanted Performance Criteria Assessment . 28
5.4.3.6 Conducted measurements for radio determination devices . 28
5.4.3.6.0 General . 28
5.4.3.6.1 Step 1: Technical Wanted Performance Criteria . 28
5.4.3.6.2 Step 2: Sensitivity Requirement (Power) . 28
5.4.3.6.3 Step 3: Measurement Procedure . 29
5.4.3.6.4 Step 4: Technical Wanted Performance Criteria Assessment . 30
5.5 Receiver Baseline Resilience (RBR) . 30
5.5.1 Description . 30
5.5.2 RBR Requirements . 30
5.5.2.1 Interferer test signal. 30
5.5.2.2 RBR wanted performance criteria . 30
5.5.3 Conformance. 31
5.5.3.1 General . 31
5.5.3.2 Conducted Measurements for Radio Communication Devices . 31
5.5.3.2.1 Step 1: Start with the RBS Setup . 31
5.5.3.2.2 Step 2: Adding Interfering Signal Source . 31
5.5.3.2.3 Step 3: Degradation of Sensitivity Requirement . 31
5.5.3.2.4 Step 4: Test of Technical Wanted Performance Criteria . 31
5.5.3.2.5 Step 5: Measurement Assessment . 32
5.5.3.2.6 Step 6: Repetition of steps 4 and 5 . 32
5.5.3.3 Radiated Measurements for Radio Communication Devices with Power Limit . 32
5.5.3.3.1 Step 1: Start with the RBS Setup . 32
5.5.3.3.2 Step 2: Adding Interfering Signal Source . 32
5.5.3.3.3 Step 3: Degradation of Sensitivity Requirement . 32
5.5.3.3.4 Step 4: Test of Technical Wanted Performance Criteria . 33
5.5.3.3.5 Step 5: Measurement Assessment . 33
5.5.3.3.6 Step 6: Repetition of steps 4 and 5 . 33
5.5.3.4 Radiated Measurements for Radio Communication Devices with Distance Limit . 33
5.5.3.4.1 Step 1: Start with the RBS setup. 33
5.5.3.4.2 Step 2: Adding interfering signal source . 33
5.5.3.4.3 Step 3: Degradation of Sensitivity Requirement . 34
5.5.3.4.4 Step 4: Test of Technical Wanted Performance Criteria . 34
5.5.3.4.5 Step 5: Measurement Assessment . 34
5.5.3.4.6 Step 6: Repetition of steps 4 and 5 . 34
5.5.3.5 Radiated Measurements for Radiodetermination Applications with Distance Limit . 34
5.5.3.5.1 Step 1: Start with the RBS Setup . 34
5.5.3.5.2 Step 2: Adding interfering signal source . 34
5.5.3.5.3 Step 3: Degradation of Sensitivity Requirement . 35
5.5.3.5.4 Step 4: Test of Technical Wanted Performance Criteria . 36
5.5.3.5.5 Step 5: Measurement Assessment . 36
5.5.3.5.6 Step 6: Repetition of steps 4 and 5 . 36
5.5.3.6 Conducted Measurements for Radio Determination Devices . 36
5.5.3.6.1 Step 1: Start with the RBS Setup . 36
5.5.3.6.2 Step 2: Adding Interfering Signal Source . 36
5.5.3.6.3 Step 3: Degradation of Sensitivity Requirement . 36
5.5.3.6.4 Step 4: Test of Technical Performance Criteria . 37
5.5.3.6.5 Step 5: Measurement Assessment . 37
5.5.3.6.6 Step 6: Repetition of steps 4 and 5 . 37
Annex A (normative): Choose interferer for RBR . 38
A.1 Introduction . 38
A.2 Limits for the Interfering Signals . 39
A.2.1 Interferer within OFR . 39
A.2.1.0 Introduction. 39
A.2.1.1 Option 1 . 39
A.2.1.2 Option 2 . 39
ETSI
5 ETSI EN 303 883-2 V1.2.1 (2021-02)
A.2.2 Interferer outside OFR . 40
A.3 Guidance to Setup the Power Level of the Interfering Signals @ EUT for RBR tests . 40
A.3.1 Radiated tests . 40
A.3.2 Conducted tests . 42
Annex B (informative): Guidance on Scaling Receiver Sensitivity . 43
B.1 General . 43
B.2 Scaling of power at the EUT . 43
B.3 Scaling distance . 44
Annex C (informative): Justification of receiver requirements from ETSI EG 203 336 . 45
C.1 General . 45
C.2 Justification . 45
C.3 Summary for the RBR requirement . 47
C.4 Justification RBS-requirement for radio determination devices . 48
Annex D (informative): Object and Radar Cross Section . 50
D.1 Wanted objects . 50
D.2 Direct Object Reflectors . 52
D.3 Delay Line Object Reflectors . 54
D.4 Electronic Object Reflectors . 54
D.5 Test Setup with Conventional RCS within Chamber . 55
D.6 Test Setup with Radar Object Generator . 56
D.6.1 General . 56
Annex E (informative): Change History . 58
History . 59
ETSI
6 ETSI EN 303 883-2 V1.2.1 (2021-02)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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 (https://ipr.etsi.org/).
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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and
Radio spectrum Matters (ERM).
The present document is part 2 of a multi-part deliverable covering Short Range Devices (SRD) and Ultra Wide Band
(UWB), as identified below:
Part 1: "Measurement techniques for transmitter requirements";
Part 2: "Measurement techniques for receiver requirements".
National transposition dates
Date of adoption of this EN: 22 February 2021
Date of latest announcement of this EN (doa): 31 May 2021
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2021
Date of withdrawal of any conflicting National Standard (dow): 30 November 2021
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
7 ETSI EN 303 883-2 V1.2.1 (2021-02)
Introduction
The present document provides measurement procedures for receiver requirements to address the spectrum efficiency
requirements of the RED [i.10].
The basis for this RX concept was developed by ETSI during two Special Task Forces.
First Special Task Force: ETSI STF 494; Update of the UWB related Harmonised Standards covering the essential
requirements of article 3.2 of the RED [i.10].
The STF 494:
• Started: 2015-05-25
• Ended: 2016-03-31
Outcome:
• ETSI TS 103 361 [i.4]
The second Special Task Force: ETSI STF 541; Signal interferer handling, a new RX requirement to cover the
essential requirements of article 3.2 of the RED [i.10], was a continuation to implement and consider comments
received after the publication of the ETSI TS 103 361 [i.4].
The STF 541:
• Started: 2017-10-06
• Ended: 2019-05-31
Outcome:
• ETSI TR 103 566 [i.2]
• ETSI TS 103 567 [i.3]
There is no specification of receiver parameter values within the present document. These values will be derived from
technical specification defined by the responsible ETSI Technical Committees and/or the findings of regulatory studies
conducted by the relevant bodies like CEPT ECC WG SE. The limits/values for the baseline RX-conformance
requirements will be specified in the related standard.
In addition to the two receiver baseline requirements it can be necessary that the RX spurious emission requirement
could be a further RX requirement in the related standard. This could be necessary if the EUT has a receive only mode
or if it is not collocated to the transmitter. The present document specifies the receiver spurious emission requirement
and the corresponding test and measurement procedure in clause 5.2.
The present document provides practical information and guidance for the compliance receiver tests of UWB and Short
Range technology and devices.
It is recommended that, in drafting the related standards, a thorough analysis is conducted on all possible applicable
receiver parameters (see annex C), selecting the most appropriate RX-requirements and having a robust reasoning for
those that are disregarded.
ETSI
8 ETSI EN 303 883-2 V1.2.1 (2021-02)
1 Scope
The present document provides measurement procedures for receiver requirements to address the spectrum efficiency
requirements of the RED [i.10].
The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance
for HS development, which can be further refined by the responsible TB.
Baseline receiver concept comprises the following parameters:
• Receiver Baseline Sensitivity (RBS); and
• Receiver Baseline Resilience (RBR).
The Baseline receiver concept is a further development of the signal interferer handling concept, see ETSI
TS 103 361 [i.4].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
Not applicable.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EG 203 336 (V1.2.1): "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.2] ETSI TR 103 566 (V1.1.1): "Evaluation status on receiver requirement on Signal interferer
handling".
[i.3] ETSI TS 103 567 (V1.1.1): "Requirements on signal interferer handling".
[i.4] ETSI TS 103 361 (V1.1.1): "Short Range Devices (SRD) using Ultra Wide Band technology
(UWB); Receiver technical requirements, parameters and measurement procedures to fulfil the
requirements of the Directive 2014/53/EU".
ETSI
9 ETSI EN 303 883-2 V1.2.1 (2021-02)
[i.5] ERC REC 74-01: "Unwanted emissions in the spurious domain", approved 1998, amended
29 May 2019.
[i.6] ETSI EN 303 883-1 (V1.2.1): "Short Range Devices (SRD) and Ultra Wide Band (UWB); Part 1:
Measurement techniques for transmitter requirements".
[i.7] "RCS measurement results for automotive related objects at 23-27 GHz"; Tom Schipper; Joaquim
th
Fortuny-Guasch; Dario Tarchi; Lars Reichardt; Thomas Zwick. Proceedings of the 5 European
Conference on Antennas and Propagation (EUCAP).
[i.8] EUR - Scientific and Technical Research Reports: "Radar Cross Section Measurements of
Pedestrian Dummies and Humans in the 24/77 GHz Frequency Band". FORTUNY GUASCH
Joaquim and CHAREAU Jean-Marc, 2013.
[i.9] ETSI TR 103 181-2 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Short Range Devices (SRD) using Ultra Wide Band (UWB);Transmission characteristics Part 2:
UWB mitigation techniques".
[i.10] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC (RED).
[i.11] European Communications Office: "EFIS: ECO Frequency Information System".
NOTE: Available at https://efis.cept.org/.
[i.12] ETSI TR 103 181-1 (V1.1.1): "Short Range Devices (SRD) using Ultra Wide Band (UWB);
Technical Report Part 1: UWB signal characteristics and overview CEPT/ECC and EC
regulation".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
antenna port: physical port, for connection of an antenna used for intentional transmission and/or reception of radiated
RF energy
co-located: receiver is located in the same device/EUT housing as the transmitter
event failure rate: ratio of failed tests compared to total number of tests
mainbeam: direction of maximum radiation
Received Power at the EUT (P@EUT): received power at the EUT and represents the signal the EUT is able to detect.
P is similar to the specified sensitivity level for the EUT as specified in the related standard (kind of power
@EUT
(e.g. dBm or dBm/MHz) and limit, see note)
NOTE: @ = .
@
Receiver Baseline Resilience (RBR): capability to maintain a pre-determined minimum acceptable level of
performance in the presence of unwanted signals over the frequency band of operation, applicable adjacent and remote
frequency bands
Receiver Baseline Sensitivity (RBS): capability to receive a wanted signal at application related defined input signal
levels while providing a pre-determined minimum acceptable level of technical performance
NOTE 1: The pre-determined minimum acceptable level of technical performance is the basis for all other receiver
parameters.
ETSI
10 ETSI EN 303 883-2 V1.2.1 (2021-02)
NOTE 2: The purpose of the sensitivity requirement is to assure a basic measure of efficient use of spectrum that
strikes balance between sensitivity and the need to avoid being sensitive to interference.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
σ Radar Cross Section
ΔD degradation of the distance from RBR test
∆f additional frequency range to increase the range (ORF ) for the RBR interferer assessment
RBR
A size of the antenna aperture
A effective area of the antenna [m²]
eff
att attenuation of the "Variable Attenuator" in [dB]
c the velocity of light [m/s]
ca cable attenuation
cf coupling factor of the coupler in [dB]
d degradation of the sensitivity in [dB]
g
dB decibel
dBi gain in decibels relative to an isotropic antenna
dBm gain in decibels relative to one milliwatt
dl attenuation of the "Delay Line" in [dB]
D distance between interfering antenna and EUT
int
D minimum distance from EUT to a specified object the EUT is able to detect
min
D real distance between EUT and target simulator in [m]
real
D minimum range from an ideal/companion source to the EUT (RX) value in [m]
sens
D scaled distance for the RBS tests
scal
D simulated target distance within target simulator in [m]
sim
f test frequency in [GHz]
f centre frequency of the EUT OFR
C
F lowest frequency of receiver spurious emission test
LOWER
F highest frequency of receiver spurious emission test
UPPER
g measurement antenna gain in [dBi] at test frequency f
measure
g measurement test antenna gain in [dBi] at test frequency f
t
ge EUT antenna gain in [dBi]
g measurement receiving test antenna gain in [dBi] at test frequency f
rt
G interfering transmit antenna
int
g antenna gain of test antenna to transmit interfering signal [dBi]
int
G gain of the receiving antenna
RX
G gain of the transmitting antenna
TX
il insertion loss of the coupler in [dB]
IP interfering Power@EUT
@EUT
IP output power of the interference signal source (generator)
out
ORF Frequency range for the RBR interferer assessment
RBR
P Sensitivity @ EUT
@EUT
P measured transmitted power of the EUT [e.g. dBm/MHz] or in [W]
EUT
Pmeas measured received power with the spectrum analyser
P output power of the signal generator A
out
P maximum regulated radiated emission for ideal TX/companion device
reg
P power received back from the object by the EUT [W]
RX
P measured transmitted power from the EUT in [dB]
trans
P transmitter power [W]
TX
RBRin-band frequency range for the RBR interferer assessment (ORFRBR + 2∆f)
RX sensitivity limit at antenna port
ref
RX scaled sensitivity limit for the RBS test
refsense
SCP Scaling factor (absolute value)
X symbol for a value/limit specified in the related standard
VALUE
ETSI
11 ETSI EN 303 883-2 V1.2.1 (2021-02)
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACS Adjacent Channel Selectivity
ADM Accuracy in Distance Measurement
BER Bit Error Rate
CATR Compliant And TRansportable far-field
CEPT European Conference of Postal and Telecommunications administrations
CW Continuous Wave
DAA Detect And Avoid
ECC Electronic Communications Committee
ECO European Communications Office
EFIS ECO Frequency Information System
EFR Event Failure Ratio
EN European Norm
ENAP EN Approval Process
ERM Electromagnetic compatibility and Radio spectrum Matters
EUT Equipment Under Test
EUT-RX Receiver of the Equipment Under Test
FCC Federal Communications Commission
FMCW Frequency Modulated Continuous Wave
HH Horizontal - Horizontal
LAES Location tracking Applications for Emergency Services
LBT Listen Before Talk
LT1 Location Tracking type 1
LT2 Location Tracking type 2
MIMO Multiple Input Multiple Output
NA Not Applicable
ODP Object Detection Probability
OFR Operating Frequency Range
OOB Out Of Band
OTA Over The Air
PER Packet Error Rate
RBR Receiver Baseline Resilience
RBS Receiver Baseline Sensitivity
RBW Resolution BandWidth
RC Remote Consensus
RCS Radar Cross Section
RED Radio Equipment Directive
RF Radio Frequency
RMS Root Mean of Squares
RP Radiated Power
RX Receiver
SE Spectrum Engineering
SRD Short Range Device
STF Special Task Force of ETSI
TB Technical Body
TG Technical Group
TPC Total Power Control
TX Transmitter
UWB Ultra Wide Band
VBW Video BandWidth
VV Vertical - Vertical
WG Working Group
ETSI
12 ETSI EN 303 883-2 V1.2.1 (2021-02)
4 General
The present document provides practical information and guidance for the compliance receiver tests of UWB and Short
Range technology and devices.
The baseline receiver requirements were developed based on the findings of ETSI TR 103 566 [i.2] and ETSI
TS 103 567 [i.3], where the signal interferer handling concept from ETSI TS 103 361 [i.4] has been analysed on its
applicability for the RED [i.10].
The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance
for harmonised standard development, which can be further refined by the responsible TB.
Baseline receiver concept comprises the following parameters:
• Receiver Baseline Sensitivity (RBS); see clause 5.4; and
• Receiver Baseline Resilience (RBR); see clause 5.5.
The baseline receiver concept is a further development of the signal interferer handling concept, see ETSI
TS 103 361 [i.4].
In annex C these two parameters are put in relation to existing receiver parameters given in ETSI EG 203 336 [i.1] and
the assessments prepared by ETSI STF 494 and 541. Annex C additionally provides the summary
assessment/justification for this new baseline receiver concept described in the present document.
5 Receiver Requirements
5.1 General Guidance on RX measurement
Complementary information to the conformance tests in the clauses below are provided in annexes A and B of ETSI
EN 303 883-1 [i.6], for example:
• test conditions, power supply and ambient temperatures (see clause A.5 of ETSI EN 303 883-1 [i.6]);
• measurement uncertainty and the interpretation of the measurement results (see clause A.8 of ETSI
EN 303 883-1 [i.6]);
• test setups and radiated measurements (see annex B of ETSI EN 303 883-1 [i.6]).
5.2 Receiver Spurious Emissions
5.2.1 Description
The RX spurious emissions shall be measured within the frequency range defined in table 2.
Only applicable for receive only EUT (TX not present) or for EUT which has a receive only mode (TX inactive).
5.2.2 Limits
The limit for RX spurious emissions could be provided in the applicable related standard
If no limits for RX spurious emissions are provided in the related standard, then the limits in table 1 shall apply.
ETSI
13 ETSI EN 303 883-2 V1.2.1 (2021-02)
Table 1: Receiver spurious emission limits in line with ERC REC 74-01 [i.5]
Frequency range Limit values
FLOWER to 1 000 MHz (see note) -57 dBm
1 GHz < f ≤ F (see note) -47 dBm
UPPER
NOTE: F and F are linked with the OFR of the EUT, see table 2.
UPPER LOWER
Table 2: Frequency range for the RX spurious emission test, linked with EUT OFR
in line with ERC REC 74-01 [i.5]
Fundamental frequency range Frequency range for measurements
defined by fL and fH (see note 2) Lower frequency (FLOWER) (see note 3) Upper frequency (FUPPER)
300 - 600 MHz 30 MHz 3 GHz
th
600 MHz - 5,2 GHz 30 MHz 5 harmonic (see note 1)
5,2 - 13 GHz 30 MHz 26 GHz
nd
13 - 150 GHz 30 MHz 2 harmonic (see note 1)
150 - 300 GHz 30 MHz 300 GHz
NOTE 1: F is the stated harmonic of f (the upper edge of the OFR, which is measured in ETSI EN 303 883-1 [i.6],
UPPER H
clause 5.2).
NOTE 2: FLOWER has to be selected based on fL and FUPPER based on fH (fL and fH can be measured according to ETSI
EN 303 883-1 [i.6], clause 5.2); for receive only devices f and f of the related EUT/companion device shall
H L
be used.
NOTE 3: For EUT operating below 300 MHz the spurious emissions limits below 30 MHz shall be specified in the
related standard.
5.2.3 Conformance
5.2.3.1 General
The following conformance test shall be used for RX unwanted emissions (OOB and spurious emissions) if not
otherwise specified in the related standard.
The conformance test shall be performed in two steps:
• step 1: pre-scan with peak detector (see clause 5.2.3.2);
• step 2: if necessary, measurement with RMS detector (see clause 5.2.3.3).
NOTE: The split in two steps is done because: a complete scan with RMS could take a long time. The
measurement with peak detector is an "overestimation" of the emission and is only to find the frequencies
with the highest emissions that will be verified in step 2.
5.2.3.2 Step 1: Measurement with Peak Detector
The following spectrum analyser settings shall be used:
• Start frequency: F
LOWER
• Stop frequency: F
UPPER
NOTE 1: There could be a need to split the measurement into different frequency ranges depending on the
measurement set-up (e.g. external mixers, bandwidth of antennas and waveguides, RBW).
• Resolution BandWidth (RBW):
- ≥ 100 kHz between 30 MHz and 1 GHz
- ≥ 1 MHz above 1 GHz
• Video BandWidth (VBW): ≥ RBW
• Detector mode: peak
ETSI
14 ETSI EN 303 883-2 V1.2.1 (2021-02)
• Trace mode: max hold
• Sweep time: wait until the reading in the display is stable
NOTE 2: The peak detector is sensitive to corruption by events occurring only once or for a very small amount of
time and/or caused by different devices than the EUT.
NOTE 3: If the signal repetition of the EUT is known the measurement time per measurement point is equal or
larger of the signal repetition time.
NOTE 4: The number of measurement points has to be at least equal or higher than the span of the spectrum
analyser divided by the RBW.
Assessment of step 1: Compare the measurement results with the limit (see related standard and table 1) and record the
frequencies where the limit is exceeded. For these frequencies go to step 2 (clause 5.2.3.3).
5.2.3.3 Step 2: Measurement with RMS Detector
• Set the spectrum analyser to zero span mode
• Resolution BandWidth (RBW):
- 100 kHz between 30 MHz and 1 GHz
- 1 MHz above 1 GHz
• Video BandWidth (VBW): ≥ RBW
• Detector mode: peak
• Trace mode: clear write
• Sweep time: 1 s; if nothing different is specified in the related standard:
a) Set the spectrum analyser to the first recorded frequency from step 1 (clause 5.2.3.2).
b) Measure and record the spurious emission value over the sweep time.
c) Calculate the RMS value over the sweep time, using the post processing capability function of the
spectrum analyser.
d) Record the calculated RMS value and compare it against the limit (see related standard and table 1).
e) Repeat b) - d) for all frequencies from step 1.
5.3 Use-Case Specific Input Parameters for Receiver Baseline
Requirements
5.3.1 Introduction
A meaningful test of receiver requirements is only possible with knowledge of the intended use (use cases) of the EUT.
Therefore, the related standard (which is mostly use case specific) needs to provide all required use case specific input
parameters for the receiver tests, such as:
• Technical wanted performance criteria to quantify the EUT output (e.g. BER in [%], PER
...
SLOVENSKI STANDARD
01-april-2021
Naprave kratkega dosega (SRD) in ultra širokopasovna (UWB) tehnologija - 2. del:
Merilne tehnike za zahteve sprejemnika
Short Range Devices (SRD) and Ultra Wide Band (UWB) - Part 2: Measurement
techniques for receiver requirements
Ta slovenski standard je istoveten z: ETSI EN 303 883-2 V1.2.1 (2021-02)
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
Short Range Devices (SRD) and
Ultra Wide Band (UWB);
Part 2: Measurement techniques
for receiver requirements
2 ETSI EN 303 883-2 V1.2.1 (2021-02)
Reference
REN/ERM-TGUWB-149-2
Keywords
measurement, receiver, testing, UWB
ETSI
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ETSI
3 ETSI EN 303 883-2 V1.2.1 (2021-02)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 11
4 General . 12
5 Receiver Requirements. 12
5.1 General Guidance on RX measurement . 12
5.2 Receiver Spurious Emissions . 12
5.2.1 Description . 12
5.2.2 Limits . 12
5.2.3 Conformance. 13
5.2.3.1 General . 13
5.2.3.2 Step 1: Measurement with Peak Detector . 13
5.2.3.3 Step 2: Measurement with RMS Detector . 14
5.3 Use-Case Specific Input Parameters for Receiver Baseline Requirements . 14
5.3.1 Introduction. 14
5.3.2 Technical Wanted Performance Criteria . 15
5.3.3 Examples of Use-Case Specific Input Parameter for Receiver Tests . 15
5.3.3.1 Communication/Location Tracking Device . 15
5.3.3.2 Radio Determination Device (non-contact based) . 16
5.3.3.3 Material contact-based radio determination device . 18
5.4 Receiver Baseline Sensitivity (RBS) . 20
5.4.1 Description . 20
5.4.2 Limits . 20
5.4.3 Conformance. 21
5.4.3.1 General . 21
5.4.3.2 Conducted measurements for radio communication devices . 21
5.4.3.2.0 General . 21
5.4.3.2.1 Step 1: Technical Wanted Performance Criteria . 21
5.4.3.2.2 Step 2: Sensitivity Requirement (Power) . 21
5.4.3.2.3 Step 3: Measurement Procedure . 21
5.4.3.2.4 Step 4: Technical Wanted Performance Criteria Assessment . 23
5.4.3.3 Radiated Measurements for Radio Communication Devices with Power Limit . 23
5.4.3.3.0 General . 23
5.4.3.3.1 Step 1: Technical Wanted Performance Criteria . 23
5.4.3.3.2 Step 2: Sensitivity Requirement (Power) . 23
5.4.3.3.3 Step 3: Measurement Procedure . 23
5.4.3.3.4 Step 4: Technical Wanted Performance Criteria Assessment . 25
5.4.3.4 Radiated measurements for radio communication devices with distance limit . 25
5.4.3.4.0 General . 25
5.4.3.4.1 Step 1: Technical Wanted Performance Criteria . 25
5.4.3.4.2 Step 2: Sensitivity Requirement (Distance) . 25
5.4.3.4.3 Step 3: Measurement Procedure . 26
5.4.3.4.4 Step 4: Technical Wanted Performance Criteria Assessment . 26
5.4.3.5 Radiated Measurements for Radiodetermination Applications with Distance Limit . 26
ETSI
4 ETSI EN 303 883-2 V1.2.1 (2021-02)
5.4.3.5.0 General . 26
5.4.3.5.1 Step 1: Technical Performance Criteria . 26
5.4.3.5.2 Step 2: Sensitivity Requirement (Distance) . 27
5.4.3.5.3 Step 3: Measurement Procedure . 27
5.4.3.5.4 Step 4: Technical Wanted Performance Criteria Assessment . 28
5.4.3.6 Conducted measurements for radio determination devices . 28
5.4.3.6.0 General . 28
5.4.3.6.1 Step 1: Technical Wanted Performance Criteria . 28
5.4.3.6.2 Step 2: Sensitivity Requirement (Power) . 28
5.4.3.6.3 Step 3: Measurement Procedure . 29
5.4.3.6.4 Step 4: Technical Wanted Performance Criteria Assessment . 30
5.5 Receiver Baseline Resilience (RBR) . 30
5.5.1 Description . 30
5.5.2 RBR Requirements . 30
5.5.2.1 Interferer test signal. 30
5.5.2.2 RBR wanted performance criteria . 30
5.5.3 Conformance. 31
5.5.3.1 General . 31
5.5.3.2 Conducted Measurements for Radio Communication Devices . 31
5.5.3.2.1 Step 1: Start with the RBS Setup . 31
5.5.3.2.2 Step 2: Adding Interfering Signal Source . 31
5.5.3.2.3 Step 3: Degradation of Sensitivity Requirement . 31
5.5.3.2.4 Step 4: Test of Technical Wanted Performance Criteria . 31
5.5.3.2.5 Step 5: Measurement Assessment . 32
5.5.3.2.6 Step 6: Repetition of steps 4 and 5 . 32
5.5.3.3 Radiated Measurements for Radio Communication Devices with Power Limit . 32
5.5.3.3.1 Step 1: Start with the RBS Setup . 32
5.5.3.3.2 Step 2: Adding Interfering Signal Source . 32
5.5.3.3.3 Step 3: Degradation of Sensitivity Requirement . 32
5.5.3.3.4 Step 4: Test of Technical Wanted Performance Criteria . 33
5.5.3.3.5 Step 5: Measurement Assessment . 33
5.5.3.3.6 Step 6: Repetition of steps 4 and 5 . 33
5.5.3.4 Radiated Measurements for Radio Communication Devices with Distance Limit . 33
5.5.3.4.1 Step 1: Start with the RBS setup. 33
5.5.3.4.2 Step 2: Adding interfering signal source . 33
5.5.3.4.3 Step 3: Degradation of Sensitivity Requirement . 34
5.5.3.4.4 Step 4: Test of Technical Wanted Performance Criteria . 34
5.5.3.4.5 Step 5: Measurement Assessment . 34
5.5.3.4.6 Step 6: Repetition of steps 4 and 5 . 34
5.5.3.5 Radiated Measurements for Radiodetermination Applications with Distance Limit . 34
5.5.3.5.1 Step 1: Start with the RBS Setup . 34
5.5.3.5.2 Step 2: Adding interfering signal source . 34
5.5.3.5.3 Step 3: Degradation of Sensitivity Requirement . 35
5.5.3.5.4 Step 4: Test of Technical Wanted Performance Criteria . 36
5.5.3.5.5 Step 5: Measurement Assessment . 36
5.5.3.5.6 Step 6: Repetition of steps 4 and 5 . 36
5.5.3.6 Conducted Measurements for Radio Determination Devices . 36
5.5.3.6.1 Step 1: Start with the RBS Setup . 36
5.5.3.6.2 Step 2: Adding Interfering Signal Source . 36
5.5.3.6.3 Step 3: Degradation of Sensitivity Requirement . 36
5.5.3.6.4 Step 4: Test of Technical Performance Criteria . 37
5.5.3.6.5 Step 5: Measurement Assessment . 37
5.5.3.6.6 Step 6: Repetition of steps 4 and 5 . 37
Annex A (normative): Choose interferer for RBR . 38
A.1 Introduction . 38
A.2 Limits for the Interfering Signals . 39
A.2.1 Interferer within OFR . 39
A.2.1.0 Introduction. 39
A.2.1.1 Option 1 . 39
A.2.1.2 Option 2 . 39
ETSI
5 ETSI EN 303 883-2 V1.2.1 (2021-02)
A.2.2 Interferer outside OFR . 40
A.3 Guidance to Setup the Power Level of the Interfering Signals @ EUT for RBR tests . 40
A.3.1 Radiated tests . 40
A.3.2 Conducted tests . 42
Annex B (informative): Guidance on Scaling Receiver Sensitivity . 43
B.1 General . 43
B.2 Scaling of power at the EUT . 43
B.3 Scaling distance . 44
Annex C (informative): Justification of receiver requirements from ETSI EG 203 336 . 45
C.1 General . 45
C.2 Justification . 45
C.3 Summary for the RBR requirement . 47
C.4 Justification RBS-requirement for radio determination devices . 48
Annex D (informative): Object and Radar Cross Section . 50
D.1 Wanted objects . 50
D.2 Direct Object Reflectors . 52
D.3 Delay Line Object Reflectors . 54
D.4 Electronic Object Reflectors . 54
D.5 Test Setup with Conventional RCS within Chamber . 55
D.6 Test Setup with Radar Object Generator . 56
D.6.1 General . 56
Annex E (informative): Change History . 58
History . 59
ETSI
6 ETSI EN 303 883-2 V1.2.1 (2021-02)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables 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 (https://ipr.etsi.org/).
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.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and
Radio spectrum Matters (ERM).
The present document is part 2 of a multi-part deliverable covering Short Range Devices (SRD) and Ultra Wide Band
(UWB), as identified below:
Part 1: "Measurement techniques for transmitter requirements";
Part 2: "Measurement techniques for receiver requirements".
National transposition dates
Date of adoption of this EN: 22 February 2021
Date of latest announcement of this EN (doa): 31 May 2021
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 November 2021
Date of withdrawal of any conflicting National Standard (dow): 30 November 2021
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
7 ETSI EN 303 883-2 V1.2.1 (2021-02)
Introduction
The present document provides measurement procedures for receiver requirements to address the spectrum efficiency
requirements of the RED [i.10].
The basis for this RX concept was developed by ETSI during two Special Task Forces.
First Special Task Force: ETSI STF 494; Update of the UWB related Harmonised Standards covering the essential
requirements of article 3.2 of the RED [i.10].
The STF 494:
• Started: 2015-05-25
• Ended: 2016-03-31
Outcome:
• ETSI TS 103 361 [i.4]
The second Special Task Force: ETSI STF 541; Signal interferer handling, a new RX requirement to cover the
essential requirements of article 3.2 of the RED [i.10], was a continuation to implement and consider comments
received after the publication of the ETSI TS 103 361 [i.4].
The STF 541:
• Started: 2017-10-06
• Ended: 2019-05-31
Outcome:
• ETSI TR 103 566 [i.2]
• ETSI TS 103 567 [i.3]
There is no specification of receiver parameter values within the present document. These values will be derived from
technical specification defined by the responsible ETSI Technical Committees and/or the findings of regulatory studies
conducted by the relevant bodies like CEPT ECC WG SE. The limits/values for the baseline RX-conformance
requirements will be specified in the related standard.
In addition to the two receiver baseline requirements it can be necessary that the RX spurious emission requirement
could be a further RX requirement in the related standard. This could be necessary if the EUT has a receive only mode
or if it is not collocated to the transmitter. The present document specifies the receiver spurious emission requirement
and the corresponding test and measurement procedure in clause 5.2.
The present document provides practical information and guidance for the compliance receiver tests of UWB and Short
Range technology and devices.
It is recommended that, in drafting the related standards, a thorough analysis is conducted on all possible applicable
receiver parameters (see annex C), selecting the most appropriate RX-requirements and having a robust reasoning for
those that are disregarded.
ETSI
8 ETSI EN 303 883-2 V1.2.1 (2021-02)
1 Scope
The present document provides measurement procedures for receiver requirements to address the spectrum efficiency
requirements of the RED [i.10].
The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance
for HS development, which can be further refined by the responsible TB.
Baseline receiver concept comprises the following parameters:
• Receiver Baseline Sensitivity (RBS); and
• Receiver Baseline Resilience (RBR).
The Baseline receiver concept is a further development of the signal interferer handling concept, see ETSI
TS 103 361 [i.4].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
Not applicable.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EG 203 336 (V1.2.1): "Guide for the selection of technical parameters for the production of
Harmonised Standards covering article 3.1(b) and article 3.2 of Directive 2014/53/EU".
[i.2] ETSI TR 103 566 (V1.1.1): "Evaluation status on receiver requirement on Signal interferer
handling".
[i.3] ETSI TS 103 567 (V1.1.1): "Requirements on signal interferer handling".
[i.4] ETSI TS 103 361 (V1.1.1): "Short Range Devices (SRD) using Ultra Wide Band technology
(UWB); Receiver technical requirements, parameters and measurement procedures to fulfil the
requirements of the Directive 2014/53/EU".
ETSI
9 ETSI EN 303 883-2 V1.2.1 (2021-02)
[i.5] ERC REC 74-01: "Unwanted emissions in the spurious domain", approved 1998, amended
29 May 2019.
[i.6] ETSI EN 303 883-1 (V1.2.1): "Short Range Devices (SRD) and Ultra Wide Band (UWB); Part 1:
Measurement techniques for transmitter requirements".
[i.7] "RCS measurement results for automotive related objects at 23-27 GHz"; Tom Schipper; Joaquim
th
Fortuny-Guasch; Dario Tarchi; Lars Reichardt; Thomas Zwick. Proceedings of the 5 European
Conference on Antennas and Propagation (EUCAP).
[i.8] EUR - Scientific and Technical Research Reports: "Radar Cross Section Measurements of
Pedestrian Dummies and Humans in the 24/77 GHz Frequency Band". FORTUNY GUASCH
Joaquim and CHAREAU Jean-Marc, 2013.
[i.9] ETSI TR 103 181-2 (V1.1.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Short Range Devices (SRD) using Ultra Wide Band (UWB);Transmission characteristics Part 2:
UWB mitigation techniques".
[i.10] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
radio equipment and repealing Directive 1999/5/EC (RED).
[i.11] European Communications Office: "EFIS: ECO Frequency Information System".
NOTE: Available at https://efis.cept.org/.
[i.12] ETSI TR 103 181-1 (V1.1.1): "Short Range Devices (SRD) using Ultra Wide Band (UWB);
Technical Report Part 1: UWB signal characteristics and overview CEPT/ECC and EC
regulation".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
antenna port: physical port, for connection of an antenna used for intentional transmission and/or reception of radiated
RF energy
co-located: receiver is located in the same device/EUT housing as the transmitter
event failure rate: ratio of failed tests compared to total number of tests
mainbeam: direction of maximum radiation
Received Power at the EUT (P@EUT): received power at the EUT and represents the signal the EUT is able to detect.
P is similar to the specified sensitivity level for the EUT as specified in the related standard (kind of power
@EUT
(e.g. dBm or dBm/MHz) and limit, see note)
NOTE: @ = .
@
Receiver Baseline Resilience (RBR): capability to maintain a pre-determined minimum acceptable level of
performance in the presence of unwanted signals over the frequency band of operation, applicable adjacent and remote
frequency bands
Receiver Baseline Sensitivity (RBS): capability to receive a wanted signal at application related defined input signal
levels while providing a pre-determined minimum acceptable level of technical performance
NOTE 1: The pre-determined minimum acceptable level of technical performance is the basis for all other receiver
parameters.
ETSI
10 ETSI EN 303 883-2 V1.2.1 (2021-02)
NOTE 2: The purpose of the sensitivity requirement is to assure a basic measure of efficient use of spectrum that
strikes balance between sensitivity and the need to avoid being sensitive to interference.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
σ Radar Cross Section
ΔD degradation of the distance from RBR test
∆f additional frequency range to increase the range (ORF ) for the RBR interferer assessment
RBR
A size of the antenna aperture
A effective area of the antenna [m²]
eff
att attenuation of the "Variable Attenuator" in [dB]
c the velocity of light [m/s]
ca cable attenuation
cf coupling factor of the coupler in [dB]
d degradation of the sensitivity in [dB]
g
dB decibel
dBi gain in decibels relative to an isotropic antenna
dBm gain in decibels relative to one milliwatt
dl attenuation of the "Delay Line" in [dB]
D distance between interfering antenna and EUT
int
D minimum distance from EUT to a specified object the EUT is able to detect
min
D real distance between EUT and target simulator in [m]
real
D minimum range from an ideal/companion source to the EUT (RX) value in [m]
sens
D scaled distance for the RBS tests
scal
D simulated target distance within target simulator in [m]
sim
f test frequency in [GHz]
f centre frequency of the EUT OFR
C
F lowest frequency of receiver spurious emission test
LOWER
F highest frequency of receiver spurious emission test
UPPER
g measurement antenna gain in [dBi] at test frequency f
measure
g measurement test antenna gain in [dBi] at test frequency f
t
ge EUT antenna gain in [dBi]
g measurement receiving test antenna gain in [dBi] at test frequency f
rt
G interfering transmit antenna
int
g antenna gain of test antenna to transmit interfering signal [dBi]
int
G gain of the receiving antenna
RX
G gain of the transmitting antenna
TX
il insertion loss of the coupler in [dB]
IP interfering Power@EUT
@EUT
IP output power of the interference signal source (generator)
out
ORF Frequency range for the RBR interferer assessment
RBR
P Sensitivity @ EUT
@EUT
P measured transmitted power of the EUT [e.g. dBm/MHz] or in [W]
EUT
Pmeas measured received power with the spectrum analyser
P output power of the signal generator A
out
P maximum regulated radiated emission for ideal TX/companion device
reg
P power received back from the object by the EUT [W]
RX
P measured transmitted power from the EUT in [dB]
trans
P transmitter power [W]
TX
RBRin-band frequency range for the RBR interferer assessment (ORFRBR + 2∆f)
RX sensitivity limit at antenna port
ref
RX scaled sensitivity limit for the RBS test
refsense
SCP Scaling factor (absolute value)
X symbol for a value/limit specified in the related standard
VALUE
ETSI
11 ETSI EN 303 883-2 V1.2.1 (2021-02)
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACS Adjacent Channel Selectivity
ADM Accuracy in Distance Measurement
BER Bit Error Rate
CATR Compliant And TRansportable far-field
CEPT European Conference of Postal and Telecommunications administrations
CW Continuous Wave
DAA Detect And Avoid
ECC Electronic Communications Committee
ECO European Communications Office
EFIS ECO Frequency Information System
EFR Event Failure Ratio
EN European Norm
ENAP EN Approval Process
ERM Electromagnetic compatibility and Radio spectrum Matters
EUT Equipment Under Test
EUT-RX Receiver of the Equipment Under Test
FCC Federal Communications Commission
FMCW Frequency Modulated Continuous Wave
HH Horizontal - Horizontal
LAES Location tracking Applications for Emergency Services
LBT Listen Before Talk
LT1 Location Tracking type 1
LT2 Location Tracking type 2
MIMO Multiple Input Multiple Output
NA Not Applicable
ODP Object Detection Probability
OFR Operating Frequency Range
OOB Out Of Band
OTA Over The Air
PER Packet Error Rate
RBR Receiver Baseline Resilience
RBS Receiver Baseline Sensitivity
RBW Resolution BandWidth
RC Remote Consensus
RCS Radar Cross Section
RED Radio Equipment Directive
RF Radio Frequency
RMS Root Mean of Squares
RP Radiated Power
RX Receiver
SE Spectrum Engineering
SRD Short Range Device
STF Special Task Force of ETSI
TB Technical Body
TG Technical Group
TPC Total Power Control
TX Transmitter
UWB Ultra Wide Band
VBW Video BandWidth
VV Vertical - Vertical
WG Working Group
ETSI
12 ETSI EN 303 883-2 V1.2.1 (2021-02)
4 General
The present document provides practical information and guidance for the compliance receiver tests of UWB and Short
Range technology and devices.
The baseline receiver requirements were developed based on the findings of ETSI TR 103 566 [i.2] and ETSI
TS 103 567 [i.3], where the signal interferer handling concept from ETSI TS 103 361 [i.4] has been analysed on its
applicability for the RED [i.10].
The baseline receiver concept is a set of two parameters given in clause 5 of the present document providing guidance
for harmonised standard development, which can be further refined by the responsible TB.
Baseline receiver concept comprises the following parameters:
• Receiver Baseline Sensitivity (RBS); see clause 5.4; and
• Receiver Baseline Resilience (RBR); see clause 5.5.
The baseline receiver concept is a further development of the signal interferer handling concept, see ETSI
TS 103 361 [i.4].
In annex C these two parameters are put in relation to existing receiver parameters given in ETSI EG 203 336 [i.1] and
the assessments prepared by ETSI STF 494 and 541. Annex C additionally provides the summary
assessment/justification for this new baseline receiver concept described in the present document.
5 Receiver Requirements
5.1 General Guidance on RX measurement
Complementary information to the conformance tests in the clauses below are provided in annexes A and B of ETSI
EN 303 883-1 [i.6], for example:
• test conditions, power supply and ambient temperatures (see clause A.5 of ETSI EN 303 883-1 [i.6]);
• measurement uncertainty and the interpretation of the measurement results (see clause A.8 of ETSI
EN 303 883-1 [i.6]);
• test setups and radiated measurements (see annex B of ETSI EN 303 883-1 [i.6]).
5.2 Receiver Spurious Emissions
5.2.1 Description
The RX spurious emissions shall be measured within the frequency range defined in table 2.
Only applicable for receive only EUT (TX not present) or for EUT which has a receive only mode (TX inactive).
5.2.2 Limits
The limit for RX spurious emissions could be provided in the applicable related standard
If no limits for RX spurious emissions are provided in the related standard, then the limits in table 1 shall apply.
ETSI
13 ETSI EN 303 883-2 V1.2.1 (2021-02)
Table 1: Receiver spurious emission limits in line with ERC REC 74-01 [i.5]
Frequency range Limit values
FLOWER to 1 000 MHz (see note) -57 dBm
1 GHz < f ≤ F (see note) -47 dBm
UPPER
NOTE: F and F are linked with the OFR of the EUT, see table 2.
UPPER LOWER
Table 2: Frequency range for the RX spurious emission test, linked with EUT OFR
in line with ERC REC 74-01 [i.5]
Fundamental frequency range Frequency range for measurements
defined by fL and fH (see note 2) Lower frequency (FLOWER) (see note 3) Upper frequency (FUPPER)
300 - 600 MHz 30 MHz 3 GHz
th
600 MHz - 5,2 GHz 30 MHz 5 harmonic (see note 1)
5,2 - 13 GHz 30 MHz 26 GHz
nd
13 - 150 GHz 30 MHz 2 harmonic (see note 1)
150 - 300 GHz 30 MHz 300 GHz
NOTE 1: F is the stated harmonic of f (the upper edge of the OFR, which is measured in ETSI EN 303 883-1 [i.6],
UPPER H
clause 5.2).
NOTE 2: FLOWER has to be selected based on fL and FUPPER based on fH (fL and fH can be measured according to ETSI
EN 303 883-1 [i.6], clause 5.2); for receive only devices f and f of the related EUT/companion device shall
H L
be used.
NOTE 3: For EUT operating below 300 MHz the spurious emissions limits below 30 MHz shall be specified in the
related standard.
5.2.3 Conformance
5.2.3.1 General
The following conformance test shall be used for RX unwanted emissions (OOB and spurious emissions) if not
otherwise specified in the related standard.
The conformance test shall be performed in two steps:
• step 1: pre-scan with peak detector (see clause 5.2.3.2);
• step 2: if necessary, measurement with RMS detector (see clause 5.2.3.3).
NOTE: The split in two steps is done because: a complete scan with RMS could take a long time. The
measurement with peak detector is an "overestimation" of the emission and is only to find the frequencies
with the highest emissions that will be verified in step 2.
5.2.3.2 Step 1: Measurement with Peak Detector
The following spectrum analyser settings shall be used:
• Start frequency: F
LOWER
• Stop frequency: F
UPPER
NOTE 1: There could be a need to split the measurement into different frequency ranges depending on the
measurement set-up (e.g. external mixers, bandwidth of antennas and waveguides, RBW).
• Resolution BandWidth (RBW):
- ≥ 100 kHz between 30 MHz and 1 GHz
- ≥ 1 MHz above 1 GHz
• Video BandWidth (VBW): ≥ RBW
• Detector mode: peak
ETSI
14 ETSI EN 303 883-2 V1.2.1 (2021-02)
• Trace mode: max hold
• Sweep time: wait until the reading in the display is stable
NOTE 2: The peak detector is sensitive to corruption by events occurring only once or for a very small amount of
time and/or caused by different devices than the EUT.
NOTE 3: If the signal repetition of the EUT is known the measurement time per measurement point is equal or
larger of the signal repetition time.
NOTE 4: The number of measurement points has to be at least equal or higher than the span of the spectrum
analyser divided by the RBW.
Assessment of step 1: Compare the measurement results with the limit (see related standard and table 1) and record the
frequencies where the limit is exceeded. For these frequencies go to step 2 (clause 5.2.3.3).
5.2.3.3 Step 2: Measurement with RMS Detector
• Set the spe
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