|
TECHNICAL REPORT
5G;
NR;
Derivation of test tolerances and measurement uncertainty for
User Equipment (UE) conformance test cases
(3GPP TR 38.903 version 15.0.0 Release 15)
---------------------- Page: 1 ----------------------
3GPP TR 38.903 version 15.0.0 Release 15 1 ETSI TR 138 903 V15.0.0 (2018-10)
Reference
DTR/TSGR-0538903vf00
Keywords
5G
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:
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
If you find errors in the present document, please send your comment to one of the following services:
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.
© ETSI 2018.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3GPP TR 38.903 version 15.0.0 Release 15 2 ETSI TR 138 903 V15.0.0 (2018-10)
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 Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
Modal verbs terminology
In the present document "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
---------------------- Page: 3 ----------------------
3GPP TR 38.903 version 15.0.0 Release 15 3 ETSI TR 138 903 V15.0.0 (2018-10)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 6
Introduction . 6
1 Scope . 7
2 References . 7
3 Definitions, symbols and abbreviations . 8
3.1 Definitions . 8
3.2 Symbols . 8
3.3 Abbreviations . 8
4 General Principles . 8
4.1 Principle of Superposition . 8
4.2 Sensitivity analysis . 8
4.3 Statistical combination of uncertainties . 8
4.4 Correlation between uncertainties . 9
4.4.1 Uncorrelated uncertainties . 9
4.4.2 Positively correlated uncertainties . 10
4.4.3 Negatively correlated uncertainties . 11
4.4.4 Treatment of uncorrelated uncertainties . 11
4.4.5 Treatment of positively correlated uncertainties with adverse effect . 11
4.4.6 Treatment of positively correlated uncertainties with beneficial effect . 11
4.4.7 Treatment of negatively correlated uncertainties . 12
5 Determination of Test System Uncertainties . 12
5.1 General . 12
5.2 Uncertainty figures . 12
6 Determination of Test Tolerances . 12
6.1 General . 12
7 Grouping of test cases defined in TS 38.521-4 . 12
8 Grouping of test cases defined in TS 38.533 . 13
Annex A: Derivation documents for test tolerance . 14
Annex B: Acceptable uncertainty of test system for test cases defined in TS 38.521-2 for
radiative testing . 15
B.1 Uncertainty budget calculation principle. 15
B.1.1 Uncertainty budget calculation principle for DFF . 15
B.1.2 Uncertainty budget calculation principle for IFF . 15
B.1.3 Uncertainty budget calculation principle for NFTF . 15
B.2 Measurement error contribution descriptions . 15
B.2.1 Measurement error contribution descriptions for DFF . 15
B.2.1.1 Positioning misalignment . 15
B.2.1.2 Measure distance uncertainty . 15
B.2.1.3 Quality of quiet zone. 16
B.2.1.4 Mismatch . 16
B.2.1.5 Standing Wave Between the DUT and measurement antenna . 18
B.2.1.6 Uncertainty of the RF power measurement equipment . 18
B.2.1.7 Phase curvature . 18
B.2.1.8 Amplifier uncertainties . 18
B.2.1.9 Random uncertainty . 19
ETSI
---------------------- Page: 4 ----------------------
3GPP TR 38.903 version 15.0.0 Release 15 4 ETSI TR 138 903 V15.0.0 (2018-10)
B.2.1.10 Influence of the XPD . 19
B.2.1.11 Insertion loss Variation . 20
B.2.1.12 RF leakage (from measurement antenna to receiver/transmitter) . 20
B.2.1.13 Misalignment of positioning System . 20
B.2.1.14 Uncertainty of the Network Analyzer . 20
B.2.1.15 Uncertainty of the absolute gain of the calibration antenna . 20
B.2.1.16 Positioning and pointing misalignment between the reference antenna and the measurement antenna . 20
B.2.1.17 gNB emulator uncertainty . 20
B.2.1.18 Phase centre offset of calibration . 20
B.2.1.19 Quality of quiet zone for calibration process . 21
B.2.1.20 Standing wave between reference calibration antenna and measurement antenna . 21
B.2.1.21 Influence of the calibration antenna feed cable (Flexing cables, adapters, attenuators, connector
repeatability) . 21
B.2.1.22 Influence of TRP measurement grid . 21
B.2.1.23 Influence of beam peak search grid . 21
B.2.1.24 Mean error related to TRP calculation applying sin( θ)-weighting . 22
B.2.2 Measurement error contribution descriptions for IFF . 22
B.2.2.1 Positioning misalignment . 22
B.2.2.2 Measure distance uncertainty . 22
B.2.2.3 Quality of Quiet Zone . 22
B.2.2.4 Mismatch . 22
B.2.2.5 Standing wave between DUT and measurement antenna . 22
B.2.2.6 Uncertainty of the RF power measurement equipment . 22
B.2.2.7 Phase Curvature . 22
B.2.2.8 Amplifier Uncertainties . 22
B.2.2.9 Random uncertainty . 22
B.2.2.10 Influence of XPD . 22
B.2.2.11 Insertion Loss Variation . 22
B.2.2.12 RF leakage (from measurement antenna to receiver/transmitter) . 22
B.2.2.13 Misalignment of positioning system . 23
B.2.2.14 Uncertainty of the Network Analyzer . 23
B.2.2.15 Uncertainty of the absolute gain of the calibration antenna . 23
B.2.2.16 Positioning and pointing misalignment between the reference antenna and the measurement antenna . 23
B.2.2.17 gNB emulator uncertainty . 23
B.2.2.18 Phase centre offset of calibration . 23
B.2.2.19 Quality of the Quiet Zone for Calibration Process . 23
B.2.2.20 Standing wave between reference calibration antenna and measurement antenna . 23
B.2.2.21 Influence of the calibration antenna feed cable (Flexing cables, adapters, attenuators, connector
repeatability) . 23
B.2.2.22 Influence of TRP measurement grid . 23
B.2.2.23 Influence of beam peak search grid . 23
B.2.2.24 Mean error related to TRP calculation applying sin( θ)-weighting . 23
B.2.3 Measurement error contribution descriptions for NFTF. 23
B.2.3.1 Axes Alignment . 23
B.2.3.2 Measurement Distance uncertainty . 24
B.2.3.3 Quality of the Quiet Zone . 24
B.2.3.4 Mismatch . 24
B.2.3.5 Multiple Reflections: Coupling Measurement Antenna and DUT . 24
B.2.3.6 Uncertainty of the RF power measurement equipment . 24
B.2.3.7 Phase curvature . 24
B.2.3.8 Amplifier uncertainties . 24
B.2.3.9 Random uncertainty . 24
B.2.3.10 Influence of the XPD . 24
B.2.3.11 NF to FF truncation. 24
B.2.3.12 Probe Polarization Amplitude and Phase . 24
B.2.3.13 Probe Array Uniformity (for multi-probe systems only) . 24
B.2.3.14 Uncertainty of the Network Analyzer . 25
B.2.3.15 Uncertainty of the absolute gain of the calibration antenna . 25
B.2.3.16 Phase Recovery Non-Linearity over signal bandwidth . 25
B.2.3.17 Probe Pattern Effect . 25
B.2.3.18 Phase centre offset of calibration . 25
B.2.3.19 Quality of the Quiet Zone for Calibration Process . 25
ETSI
---------------------- Page: 5 ----------------------
3GPP TR 38.903 version 15.0.0 Release 15 5 ETSI TR 138 903 V15.0.0 (2018-10)
B.2.3.20 Phase Drift and Noise . 25
B.2.3.21 Mismatch in the connection of the calibration antenna. 25
B.2.3.22 Influence of TRP measurement grid . 25
B.2.2.23 Influence of beam peak search grid . 25
B.2.2.24 Mean error related to TRP calculation applying sin( θ)-weighting . 25
B.2.3.25 Leakage and Crosstalk . 25
B.3 UE maximum output power . 26
B.3.1 Uncertainty budget format and assessment for DFF . 26
B.3.2 Uncertainty budget format and assessment for IFF . 29
B.3.3 Uncertainty budget format and assessment for NFTF . 31
Annex C: Acceptable uncertainty of test system for test cases defined in TS 38.521-3 for
radiative testing . 33
Annex D: Acceptable uncertainty of test system for test cases defined in TS 38.521-4 for
radiative testing . 34
Annex E: Acceptable uncertainty of test system for test cases defined in TS 38.533 for
radiative testing . 35
Annex F: Change history . 36
History . 37
ETSI
---------------------- Page: 6 ----------------------
3GPP TR 38.903 version 15.0.0 Release 15 6 ETSI TR 138 903 V15.0.0 (2018-10)
Foreword
This Technical Report has been produced by the 3rd Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
Introduction
FFS
ETSI
---------------------- Page: 7 ----------------------
3GPP TR 38.903 version 15.0.0 Release 15 7 ETSI TR 138 903 V15.0.0 (2018-10)
1 Scope
The present document specifies a general method used to derive Measurement Uncertainties and Test Tolerances for
UE conformance tests. The acceptable uncertainties for each test case are documented and establish a system for
relating the Test Tolerances to the measurement uncertainties of the Test System.
For UE radio transmitting and reception tests, only FR2 is considered in this document. For UE RRM and
Demodulation tests, both FR1 and FR2 are considered in this document.
The test cases which have been analysed to determine Test Tolerances are included as .zip files.
The present document is applicable from Release 15 up to the release indicated on the front page of the present
Terminal conformance specifications.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TR 36.903: " Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal
Terrestrial Radio Access Network (E-UTRAN); Derivation of test tolerances for Radio Resource
Management (RRM) conformance tests".
[3] 3GPP TS 36.904: " Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal
Terrestrial Radio Access Network (E-UTRAN); Derivation of test tolerances for User Equipment
(UE) radio reception conformance tests".
[4] ETSI ETR 273-1-2: "Improvement of radiated methods of measurement (using test sites) and
evaluation of the corresponding measurement uncertainties; Part 1: Uncertainties in the
measurement of mobile radio equipment characteristics; Sub-part 2: Examples and annexes".
[5] 3GPP TS 36.521-1: "User Equipment (UE) conformance specification, Radio transmission and
reception Part 1: conformance testing".
[6] 3GPP TS 38.521-1: "NR; User Equipment (UE) conformance specification; Radio transmission
and reception; Part 1: Range 1 Standalone".
[7] 3GPP TS 38.521-2: "NR; User Equipment (UE) conformance specification; Radio transmission
and reception; Part 2: Range 2 Standalone".
[8] 3GPP TS 38.521-3: "NR; User Equipment (UE) conformance specification; Radio transmission
and reception; Part 3: NR interworking between NR range1 + NR range2; and between NR and
LTE".
[9] 3GPP TS 38.521-4: "NR; User Equipment (UE) conformance specification; Radio transmission
and reception; Part 4: Performance requirements".
[10] 3GPP TS 38.533: "NR; User Equipment (UE) conformance specification; Radio Resource
Management (RRM)".
ETSI
---------------------- Page: 8 ----------------------
3GPP TR 38.903 version 15.0.0 Release 15 8 ETSI TR 138 903 V15.0.0 (2018-10)
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following
apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP
TR 21.905 [1].
Editor’s note: intended to capture definitions
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Editor’s note: intended to capture symbols
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An
abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
3GPP TR 21.905 [1].
Editor’s note: intended to capture abbreviations.
4 General Principles
4.1 Principle of Superposition
For multi-cell tests there are several cells each generating various Physical channels. In general cells are combined
along with AWGN, so the signal and noise seen by the UE may be determined by more than one cell.
Since several cells may contribute t
...