SIST EN 303 883 V1.1.1:2016

ETSI EN 303 883 V1.1.1 (2016-09)






EUROPEAN STANDARD
Short Range Devices (SRD)
using Ultra Wide Band (UWB);
Measurement Techniques

---------------------- Page: 1 ----------------------
2 ETSI EN 303 883 V1.1.1 (2016-09)



Reference
DEN/ERM-TGUWB-125
Keywords
SRD, testing, UWB

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2016.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 ETSI EN 303 883 V1.1.1 (2016-09)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 6
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definitions, symbols and abbreviations . 10
3.1 Definitions . 10
3.2 Symbols . 11
3.3 Abbreviations . 12
4 Overview . 13
4.1 Basic information . 13
4.2 Impulse derived (carrier-less) . 13
4.3 Frequency modulated/carrier-based . 14
5 General Consideration and test requirements . 15
5.1 Overview . 15
5.2 Product information . 16
5.3 Requirements for the test modulation . 16
5.4 Test conditions, power supply and ambient temperatures . 17
5.4.1 Test conditions . 17
5.4.2 Power sources . 17
5.4.2.1 Power sources for stand-alone equipment . 17
5.4.2.2 Power sources for plug-in radio devices . 17
5.4.3 Normal test conditions . 17
5.4.3.1 Normal temperature and humidity . 17
5.4.3.2 Normal power source . 18
5.4.3.2.1 Mains voltage . 18
5.4.3.2.2 Lead-acid battery power sources used on vehicles . 18
5.4.3.2.3 Other power sources . 18
5.5 Choice of equipment for test suites . 18
5.5.1 Choice of model . 18
5.5.2 Presentation. 18
5.5.3 Multiple operating bandwidths . 18
5.6 Testing of host connected equipment and plug-in radio devices . 18
5.6.1 General . 18
5.6.2 The use of a host or test fixture for testing plug-In radio devices . 19
5.7 Interpretation of the measurement results . 19
5.7.1 General points on interpretation of the measurement results . 19
5.7.2 Measurement uncertainty is equal to or less than maximum acceptable uncertainty . 19
5.7.3 Measurement uncertainty is greater than maximum acceptable uncertainty . 20
5.8 Other emissions . 20
6 Test setups and procedures . 20
6.1 Introduction . 20
6.2 Initial Measurement steps . 20
6.3 Radiated measurements . 21
6.3.1 General . 21
6.3.2 Test sites and general arrangements for measurements involving the use of radiated fields . 21
6.3.2.1 General . 21
6.3.2.2 Anechoic chamber . 21
6.3.2.3 Anechoic chamber with a conductive ground plane . 22
ETSI

---------------------- Page: 3 ----------------------
4 ETSI EN 303 883 V1.1.1 (2016-09)
6.3.2.4 Test antenna . 23
6.3.2.5 Substitution antenna . 24
6.3.2.6 Measuring antenna . 24
6.3.3 Guidance on the use of a radiation test site . 24
6.3.3.1 General on guidance on the use of a radiation test site . 24
6.3.3.2 Verification of the test site . 24
6.3.3.3 Preparation of the EUT . 24
6.3.3.4 Power supplies to the EUT . 25
6.3.3.5 Range length . 25
6.3.3.6 Site preparation . 25
6.3.4 Coupling of signals . 26
6.3.4.1 General . 26
6.3.4.2 Data Signals . 26
6.3.5 Standard test methods . 26
6.3.5.1 General information on test methods . 26
6.3.5.2 Calibrated setup . 26
6.3.5.3 Substitution method . 27
6.3.6 Standard calibration method . 27
6.4 Conducted measurements . 30
7 Test procedures for essential radio test suites . 30
7.1 General . 30
7.2 Definitions . 31
7.2.1 Introduction. 31
7.2.2 Operating bandwidth. 31
7.2.3 Maximum mean power spectral density . 31
7.2.4 Maximum peak power . 31
7.2.5 Emissions . 31
7.2.6 Receiver spurious emissions . 32
7.2.7 Power control . 32
7.2.8 Detect and avoid . 32
7.2.9 Duty Cycle . 32
7.3 Method of measurements of the UE . 33
7.3.1 Introduction. 33
7.3.2 Emission Measurements steps . 33
7.3.2.1 First step . 33
7.3.2.2 Second step . 33
7.4 Detailed measurement procedure . 34
7.4.1 Introduction. 34
7.4.2 Operating bandwidth. 34
7.4.3 Mean power spectral density measurements . 35
7.4.3.1 General on mean power spectral density measurement. 35
7.4.3.2 Mean power spectral density measurement: Method 1 . 36
7.4.3.3 Mean power spectral density measurement: Method 2 . 37
7.4.3.4 Mean power spectral density measurement: Method 3 . 38
7.4.4 Peak power measurements . 39
7.4.4.1 General on peak power measurement . 39
7.4.4.2 Peak power measurement: Method 1 . 40
7.4.4.3 Peak power measurement: Method 2 . 41
7.4.4.4 Peak power measurement: Method 3 . 42
7.4.4.4.1 Description . 42
7.4.4.4.2 Signal acquisition . 43
7.4.4.4.3 Post-Processing. 43
7.4.4.4.4 Limit . 44
7.4.5 Receiver spurious emissions . 44
7.4.6 Power control . 45
7.4.7 Test procedures for detect and avoid mechanisms . 45
7.4.7.1 Introduction . 45
7.4.7.2 Initial start-up test . 47
7.4.7.2.1 Start-up procedure . 47
7.4.7.2.2 Test without a victim test signal during the Minimum Initial Channel Availability Check
Time, Tavail_time_min. 47
ETSI

---------------------- Page: 4 ----------------------
5 ETSI EN 303 883 V1.1.1 (2016-09)
7.4.7.2.3 Test with a victim test signal at the beginning of the Minimum Initial Channel Availability
Check Time, T . 48
avail_time_min
7.4.7.2.4 Test with a victim test signal at the end of the Minimum Initial Channel Availability Check
Time, T . 50
avail_time_min
7.4.7.3 In-operation test . 52
7.4.7.3.1 General points for In-operation test . 52
7.4.7.3.2 In-operation test procedure . 53
7.4.8 Test procedures for Low Duty Cycle . 54
7.4.8.1 Test procedure for T /T , Method 1 . 54
on off
7.4.8.2 Test procedure for T /T , Method 2 . 56
on off
7.4.8.2.1 Description . 56
7.4.8.2.2 General test setup . 56
7.4.8.2.3 Time domain procedure for DC measurement . 56
7.5 Limits . 58
7.6 Maximum allowable measurement uncertainty . 59
Annex A (normative): Frequency domain measurements using spectrum analyser . 60
A.1 Spectrum analyser internal operation . 60
A.2 UWB power measurement procedures . 61
A.2.1 Introduction . 61
A.2.2 Maximum mean power spectral density . 61
A.2.2.1 General . 61
A.2.2.2 Average mean power: Finding highest . 62
A.2.3 Maximum peak power (e.i.r.p.) measurement procedure . 63
A.3 Calculation of peak limit for 3 MHz measurement bandwidth . 65
A.4 Detailed Information to standard test methods . 66
A.4.1 Spherical scan with automatic test antenna placement . 66
A.4.1.1 General . 66
A.4.1.2 Calibrated setup . 67
A.4.1.3 Substitution method . 67
A.4.1.4 Spherical scan with rotating device . 68
A.4.1.4.1 General . 68
A.4.1.4.2 Calibrated setup . 69
A.4.1.4.3 Substitution method . 69
A.4.1.5 Spherical scan other methods. 70
Annex B (informative): Measurement antenna and preamplifier specifications . 71
Annex C (informative): Bibliography . 72
History . 75

ETSI

---------------------- Page: 5 ----------------------
6 ETSI EN 303 883 V1.1.1 (2016-09)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (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.
Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and
Radio spectrum Matters (ERM).

National transposition dates
Date of adoption of this EN: 12 September 2016
Date of latest announcement of this EN (doa): 31 December 2016
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 June 2017
Date of withdrawal of any conflicting National Standard (dow): 30 June 2017

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.
Introduction
Ultra Wide Band (UWB) radio technology enables a new generation of high-speed data devices for short-range
communication purposes as well as location tracking and Sensor devices and opens new markets with a variety of
innovative applications.
UWB devices may form an integral part of other portable electronic equipment such as future generation cellular
phones or laptops equipped with UWB enabled short-range air interfaces.
In addition, UWB devices with an operating bandwidth of several hundreds of MHz up to several GHz allow tens of
centimetre-level accuracy real time localization and positioning even in the presence of severe multipath effects caused
by walls, furniture or any other harsh radio propagation environments.
ETSI

---------------------- Page: 6 ----------------------
7 ETSI EN 303 883 V1.1.1 (2016-09)
Based on the broad variety of different applications and the broad possible frequency range of operation the number of
possible deployed physical signal formats can be very large. The existing range of physical signal and modulation
formats range from traditional carrier based systems like OFDM over spread spectrum based system to carrier less
systems based on base band pulses. The frequency regulation on the other side only defines a single set of transmission
limits and values, which have to be fulfilled by all systems under the UWB regulation. Furthermore, the very high
channel bandwidth of a UWB signal gives a specific challenge to the needed measurement setup and the procedures.
Existing measurement methods need to be extended and new possible techniques should be described in the present
document.

ETSI

---------------------- Page: 7 ----------------------
8 ETSI EN 303 883 V1.1.1 (2016-09)
1 Scope
The present document summarizes the available information of possible measurement techniques and procedures for the
conformance measurement of various UWB signal formats in order to comply with the given transmission limits given
in the current regulation.
The present document will be used as a reference for existing and future ETSI standards covering UWB technologies.
2 References
2.1 Normative references
References are either specific (identif
...

Final draft ETSI EN 303 883 V1.1.1 (2016-07)






EUROPEAN STANDARD
Short Range Devices (SRD)
using Ultra Wide Band (UWB);
Measurement Techniques

---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 303 883 V1.1.1 (2016-07)



Reference
DEN/ERM-TGUWB-125
Keywords
SRD, testing, UWB

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00  Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2016.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 Final draft ETSI EN 303 883 V1.1.1 (2016-07)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 6
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definitions, symbols and abbreviations . 10
3.1 Definitions . 10
3.2 Symbols . 11
3.3 Abbreviations . 12
4 Overview . 13
4.1 Basic information . 13
4.2 Impulse derived (carrier-less) . 13
4.3 Frequency modulated/carrier-based . 14
5 General Consideration and test requirements . 15
5.1 Overview . 15
5.2 Product information . 16
5.3 Requirements for the test modulation . 16
5.4 Test conditions, power supply and ambient temperatures . 17
5.4.1 Test conditions . 17
5.4.2 Power sources . 17
5.4.2.1 Power sources for stand-alone equipment . 17
5.4.2.2 Power sources for plug-in radio devices . 17
5.4.3 Normal test conditions . 17
5.4.3.1 Normal temperature and humidity . 17
5.4.3.2 Normal power source . 18
5.4.3.2.1 Mains voltage . 18
5.4.3.2.2 Lead-acid battery power sources used on vehicles . 18
5.4.3.2.3 Other power sources . 18
5.5 Choice of equipment for test suites . 18
5.5.1 Choice of model . 18
5.5.2 Presentation. 18
5.5.3 Multiple operating bandwidths . 18
5.6 Testing of host connected equipment and plug-in radio devices . 18
5.6.1 General . 18
5.6.2 The use of a host or test fixture for testing plug-In radio devices . 19
5.7 Interpretation of the measurement results . 19
5.7.1 General points on interpretation of the measurement results . 19
5.7.2 Measurement uncertainty is equal to or less than maximum acceptable uncertainty . 19
5.7.3 Measurement uncertainty is greater than maximum acceptable uncertainty . 20
5.8 Other emissions . 20
6 Test setups and procedures . 20
6.1 Introduction . 20
6.2 Initial Measurement steps . 20
6.3 Radiated measurements . 21
6.3.1 General . 21
6.3.2 Test sites and general arrangements for measurements involving the use of radiated fields . 21
6.3.2.1 General . 21
6.3.2.2 Anechoic chamber . 21
6.3.2.3 Anechoic chamber with a conductive ground plane . 22
ETSI

---------------------- Page: 3 ----------------------
4 Final draft ETSI EN 303 883 V1.1.1 (2016-07)
6.3.2.4 Test antenna . 23
6.3.2.5 Substitution antenna . 24
6.3.2.6 Measuring antenna . 24
6.3.3 Guidance on the use of a radiation test site . 24
6.3.3.1 General on guidance on the use of a radiation test site . 24
6.3.3.2 Verification of the test site . 24
6.3.3.3 Preparation of the EUT . 24
6.3.3.4 Power supplies to the EUT . 25
6.3.3.5 Range length . 25
6.3.3.6 Site preparation . 25
6.3.4 Coupling of signals . 26
6.3.4.1 General . 26
6.3.4.2 Data Signals . 26
6.3.5 Standard test methods . 26
6.3.5.1 General information on test methods . 26
6.3.5.2 Calibrated setup . 26
6.3.5.3 Substitution method . 27
6.3.6 Standard calibration method . 27
6.4 Conducted measurements . 30
7 Test procedures for essential radio test suites . 30
7.1 General . 30
7.2 Definitions . 31
7.2.1 Introduction. 31
7.2.2 Operating bandwidth. 31
7.2.3 Maximum mean power spectral density . 31
7.2.4 Maximum peak power . 31
7.2.5 Emissions . 31
7.2.6 Receiver spurious emissions . 32
7.2.7 Power control . 32
7.2.8 Detect and avoid . 32
7.2.9 Duty Cycle . 32
7.3 Method of measurements of the UE . 33
7.3.1 Introduction. 33
7.3.2 Emission Measurements steps . 33
7.3.2.1 First step . 33
7.3.2.2 Second step . 33
7.4 Detailed measurement procedure . 34
7.4.1 Introduction. 34
7.4.2 Operating bandwidth. 34
7.4.3 Mean power spectral density measurements . 35
7.4.3.1 General on mean power spectral density measurement. 35
7.4.3.2 Mean power spectral density measurement: Method 1 . 36
7.4.3.3 Mean power spectral density measurement: Method 2 . 37
7.4.3.4 Mean power spectral density measurement: Method 3 . 38
7.4.4 Peak power measurements . 39
7.4.4.1 General on peak power measurement . 39
7.4.4.2 Peak power measurement: Method 1 . 40
7.4.4.3 Peak power measurement: Method 2 . 41
7.4.4.4 Peak power measurement: Method 3 . 42
7.4.4.4.1 Description . 42
7.4.4.4.2 Signal acquisition . 43
7.4.4.4.3 Post-Processing. 43
7.4.4.4.4 Limit . 44
7.4.5 Receiver spurious emissions . 44
7.4.6 Power control . 45
7.4.7 Test procedures for detect and avoid mechanisms . 45
7.4.7.1 Introduction . 45
7.4.7.2 Initial start-up test . 47
7.4.7.2.1 Start-up procedure . 47
7.4.7.2.2 Test without a victim test signal during the Minimum Initial Channel Availability Check
Time, Tavail_time_min. 47
ETSI

---------------------- Page: 4 ----------------------
5 Final draft ETSI EN 303 883 V1.1.1 (2016-07)
7.4.7.2.3 Test with a victim test signal at the beginning of the Minimum Initial Channel Availability
Check Time, T . 48
avail_time_min
7.4.7.2.4 Test with a victim test signal at the end of the Minimum Initial Channel Availability Check
Time, T . 50
avail_time_min
7.4.7.3 In-operation test . 52
7.4.7.3.1 General points for In-operation test . 52
7.4.7.3.2 In-operation test procedure . 53
7.4.8 Test procedures for Low Duty Cycle . 54
7.4.8.1 Test procedure for T /T , Method 1 . 54
on off
7.4.8.2 Test procedure for T /T , Method 2 . 56
on off
7.4.8.2.1 Description . 56
7.4.8.2.2 General test setup . 56
7.4.8.2.3 Time domain procedure for DC measurement . 56
7.5 Limits . 58
7.6 Maximum allowable measurement uncertainty . 59
Annex A (normative): Frequency domain measurements using spectrum analyser . 60
A.1 Spectrum analyser internal operation . 60
A.2 UWB power measurement procedures . 61
A.2.1 Introduction . 61
A.2.2 Maximum mean power spectral density . 61
A.2.2.1 General . 61
A.2.2.2 Average mean power: Finding highest . 62
A.2.3 Maximum peak power (e.i.r.p.) measurement procedure . 63
A.3 Calculation of peak limit for 3 MHz measurement bandwidth . 65
A.4 Detailed Information to standard test methods . 66
A.4.1 Spherical scan with automatic test antenna placement . 66
A.4.1.1 General . 66
A.4.1.2 Calibrated setup . 67
A.4.1.3 Substitution method . 67
A.4.1.4 Spherical scan with rotating device . 68
A.4.1.4.1 General . 68
A.4.1.4.2 Calibrated setup . 69
A.4.1.4.3 Substitution method . 69
A.4.1.5 Spherical scan other methods. 70
Annex B (informative): Measurement antenna and preamplifier specifications . 71
Annex C (informative): Bibliography . 72
History . 75

ETSI

---------------------- Page: 5 ----------------------
6 Final draft ETSI EN 303 883 V1.1.1 (2016-07)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (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.
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.

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.
Introduction
Ultra Wide Band (UWB) radio technology enables a new generation of high-speed data devices for short-range
communication purposes as well as location tracking and Sensor devices and opens new markets with a variety of
innovative applications.
UWB devices may form an integral part of other portable electronic equipment such as future generation cellular
phones or laptops equipped with UWB enabled short-range air interfaces.
In addition, UWB devices with an operating bandwidth of several hundreds of MHz up to several GHz allow tens of
centimetre-level accuracy real time localization and positioning even in the presence of severe multipath effects caused
by walls, furniture or any other harsh radio propagation environments.
ETSI

---------------------- Page: 6 ----------------------
7 Final draft ETSI EN 303 883 V1.1.1 (2016-07)
Based on the broad variety of different applications and the broad possible frequency range of operation the number of
possible deployed physical signal formats can be very large. The existing range of physical signal and modulation
formats range from traditional carrier based systems like OFDM over spread spectrum based system to carrier less
systems based on base band pulses. The frequency regulation on the other side only defines a single set of transmission
limits and values, which have to be fulfilled by all systems under the UWB regulation. Furthermore, the very high
channel bandwidth of a UWB signal gives a specific challenge to the needed measurement setup and the procedures.
Existing measurement methods need to be extended and new possible techniques should be described in the present
document.

ETSI

---------------------- Page: 7 ----------------------
8 Final draft ETSI EN 303 883 V1.1.1 (2016-07)
1 Scope
The present document summarizes the available information of possible measurement techniques and procedures for the
conformance measurement of various UWB signal formats in order to comply with the given transmission limits given
in the current regulation.
The present document
...

Draft ETSI EN 303 883 V1.1.0 (2016-02)






EUROPEAN STANDARD
Short Range Devices (SRD) using Ultra Wide Band (UWB);
Measurement Techniques

---------------------- Page: 1 ----------------------
2 Draft ETSI EN 303 883 V1.1.0 (2016-02)



Reference
DEN/ERM-TGUWB-125
Keywords
SRD, testing, UWB

ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important notice
The present document can be downloaded from:
http://www.etsi.org/standards-search
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2016.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

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3 Draft ETSI EN 303 883 V1.1.0 (2016-02)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 9
3.1 Definitions . 9
3.2 Symbols . 10
3.3 Abbreviations . 11
4 Overview . 12
4.1 Basic information . 12
4.2 Impulse derived (carrier-less) . 12
4.3 Frequency modulated/carrier-based . 13
5 General Consideration and test requirements . 13
5.1 Overview . 13
5.2 Product information . 14
5.3 Requirements for the test modulation . 15
5.4 Test conditions, power supply and ambient temperatures . 15
5.4.1 Test conditions . 15
5.4.2 Power sources . 15
5.4.2.1 Power sources for stand-alone equipment . 15
5.4.2.2 Power sources for plug-in radio devices . 16
5.4.3 Normal test conditions . 16
5.4.3.1 Normal temperature and humidity . 16
5.4.3.2 Normal power source . 16
5.4.3.2.1 Mains voltage . 16
5.4.3.2.2 Lead-acid battery power sources used on vehicles . 16
5.4.3.2.3 Other power sources . 16
5.5 Choice of equipment for test suites . 16
5.5.1 Choice of model . 16
5.5.2 Presentation. 16
5.5.3 Multiple operating bandwidths . 17
5.6 Testing of host connected equipment and plug-in radio devices . 17
5.6.1 General . 17
5.6.2 The use of a host or test fixture for testing plug-In radio devices . 17
5.7 Interpretation of the measurement results . 17
5.7.1 General points on interpretation of the measurement results . 17
5.7.2 Measurement uncertainty is equal to or less than maximum acceptable uncertainty . 18
5.7.3 Measurement uncertainty is greater than maximum acceptable uncertainty . 18
5.8 Other emissions . 19
6 Test setups and procedures . 19
6.1 Introduction . 19
6.2 Initial Measurement steps . 19
6.3 Radiated measurements . 19
6.3.1 General . 19
6.3.2 Test sites and general arrangements for measurements involving the use of radiated fields . 20
6.3.2.1 General . 20
6.3.2.2 Anechoic chamber . 20
6.3.2.3 Anechoic chamber with a conductive ground plane . 21
6.3.2.4 Test antenna . 22
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6.3.2.5 Substitution antenna . 22
6.3.2.6 Measuring antenna . 22
6.3.3 Guidance on the use of a radiation test site . 23
6.3.3.1 General on guidance on the use of a radiation test site . 23
6.3.3.2 Verification of the test site . 23
6.3.3.3 Preparation of the EUT . 23
6.3.3.4 Power supplies to the EUT . 23
6.3.3.5 Range length . 23
6.3.3.5 Site preparation . 24
6.3.4 Coupling of signals . 24
6.3.4.1 General . 24
6.3.4.2 Data Signals . 24
6.3.5 Standard test methods . 24
6.3.5.1 General information on test methods . 24
6.3.5.2 Calibrated setup . 24
6.3.5.3 Substitution method . 25
6.3.6 Standard calibration method . 26
6.4 Conducted measurements . 28
7 Test procedures for essential radio test suites . 29
7.1 General . 29
7.2 Definitions . 29
7.2.1 Introduction. 29
7.2.2 Operating bandwidth. 29
7.2.3 Maximum mean power spectral density . 29
7.2.4 Maximum peak power . 29
7.2.5 Emissions . 29
7.2.6 Receiver spurious emissions . 30
7.2.7 Power control . 30
7.2.8 Detect and avoid . 30
7.2.9 Duty Cycle . 30
7.3 Method of measurements of the UE . 31
7.3.1 Introduction. 31
7.3.2 Emission Measurements steps . 31
7.3.2.1 First step . 31
7.3.2.2 Second step . 31
7.4 Detailed measurement procedure . 32
7.4.1 Introduction. 32
7.4.2 Operating bandwidth. 32
7.4.3 Mean power spectral density measurements . 33
7.4.3.1 General on mean power spectral density measurement. 33
7.4.3.2 Mean power spectral density measurement: Method 1 . 34
7.4.3.3 Mean power spectral density measurement: Method 2 . 35
7.4.3.4 Mean power spectral density measurement: Method 3 . 36
7.4.4 Peak power measurements . 37
7.4.4.1 General on peak power measurement . 37
7.4.4.2 Peak power measurement: Method 1 . 38
7.4.4.3 Peak power measurement: Method 2 . 39
7.4.4.4 Peak power measurement: Method 3 . 40
7.4.4.4.1 Description . 40
7.4.4.4.2 Signal acquisition . 41
7.4.4.4.3 Post-Processing. 41
7.4.4.4.4 Limit . 42
7.4.5 Receiver spurious emissions . 42
7.4.6 Power control . 43
7.4.7 Test procedures for detect and avoid mechanisms . 43
7.4.7.1 Introduction . 43
7.4.7.2 Initial start-up test . 45
7.4.7.2.1 Start up precedure . 45
7.4.7.2.2 Test without a victim test signal during the Minimum Initial Channel Availability Check
Time, T . 45
avail_time_min
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7.4.7.2.3 Test with a victim test signal at the beginning of the Minimum Initial Channel Availability
Check Time, T . 46
avail_time_min
7.4.7.2.4 Test with a victim test signal at the end of the Minimum Initial Channel Availability Check
Time, T . 48
avail_time_min
7.4.7.3 In-operation test . 49
7.4.7.3.1 General points for In-operation test . 49
7.4.7.3.2 In-operation test procedure . 50
7.4.8 Test procedures for Low Duty Cycle . 51
7.4.8.1 Test procedure for T /T , Method 1 . 51
on off
7.4.8.2 Test procedure for T /T , Method 2 . 53
on off
7.4.8.2.1 Description . 53
7.4.8.2.2 General test setup . 53
7.4.8.2.3 Time domain procedure for DC measurement . 53
7.5 Limits . 55
7.6 Maximum allowable measurement uncertainty . 55
Annex A (normative): Frequency domain measurements using spectrum analyser . 56
A.1 Spectrum analyser internal operation . 56
A.2 UWB power measurement procedures . 57
A.2.1 Introduction . 57
A.2.2 Maximum mean power spectral density . 57
A.2.2.1 General . 57
A.2.2.2 Average mean power: Finding highest . 58
A.2.3 Maximum peak power (e.i.r.p.) measurement procedure . 59
A.3 Calculation of peak limit for 3 MHz measurement bandwidth . 61
A.4 Detailed Information to standard test methods . 62
A.4.1 Spherical scan with automatic test antenna placement . 62
A.4.1.1 General . 62
A.4.1.2 Calibrated setup . 63
A.4.1.3 Substitution method . 63
A.4.1.4 Spherical scan with rotating device . 64
A.4.1.4.1 General . 64
A.4.1.4.2 Calibrated setup . 64
A.4.1.4.3 Substitution method . 65
A.4.1.5 Spherical scan other methods. 65
Annex B (informative): Measurement antenna and preamplifier specifications . 66
Annex C (informative): Bibliography . 67
History . 70

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Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (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.
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.

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.
Introduction
Ultra Wide Band (UWB) radio technology enables a new generation of high-speed data devices for short-range
communication purposes as well as location tracking and Sensor devices and opens new markets with a variety of
innovative applications.
UWB devices may form an integral part of other portable electronic equipment such as future generation cellular
phones or laptops equipped with UWB enabled short-range air interfaces.
In addition, UWB devices with an operating bandwidth of several hundreds of MHz up to several GHz allow tens of
centimetre-level accuracy real time localization and positioning even in the presence of severe multipath effects caused
by walls, furniture or any other harsh radio propagation environments.
Based on the broad variety of different applications and the broad possible frequency range of operation the number of
possible deployed physical signal formats can be very large. The existing range of physical signal and modulation
formats range from traditional carrier based systems like OFDM over spread spectrum based system to carrier less
systems based on base band pulses. The frequency regulation on the other side only defines a single set of transmission
limits and values, which have to be fulfilled by all systems under the UWB regulation. Furthermore, the very high
channel bandwidth of a UWB signal gives a specific challenge to the needed measurement setup and the procedures.
Existing measurement methods need to be extended and new possible techniques should be described in the present
document.
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1 Scope
The present document summarizes the available information of possible measurement techniques and procedures for the
conformance measurement of various UWB signal formats in order to comply with the given transmission limits given
in the current regulation.
The present document will be used as a reference for existing and future ETSI standards covering UWB technologies.
2 References
2.1 Normative re
...