ETSI TS 103 246-5 V1.3.1 (2020-10)

ETSI TS 103 246-5 V1.3.1 (2020-10)






TECHNICAL SPECIFICATION
Satellite Earth Stations and Systems (SES);
GNSS based location systems;
Part 5: Performance Test Specification

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2 ETSI TS 103 246-5 V1.3.1 (2020-10)



Reference
RTS/SES-00455
Keywords
GNSS, location, MSS, navigation, performance,
receiver, satellite, system, terminal

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3 ETSI TS 103 246-5 V1.3.1 (2020-10)
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 Definition of terms, symbols and abbreviations . 9
3.1 Terms . 9
3.2 Symbols . 11
3.3 Abbreviations . 11
4 General . 12
4.1 GBLS Performance Features . 12
4.2 Conformance Test Statistics . 12
4.3 GBLS Performance Class Determination . 13
5 General test conditions . 13
5.1 Introduction . 13
5.2 Environmental conditions . 13
5.3 GNSS signal conditions . 13
5.3.1 Applicable GNSS constellations . 13
5.3.2 GNSS signal level . 13
5.3.3 GNSS frequency . 13
5.3.4 GNSS Multi-system Time Offsets . 13
5.4 Operational Environments . 14
5.5 Assistance Data . 14
5.6 Differential Data . 14
5.7 Test Configurations . 14
5.7.1 General Set-Up . 14
5.7.2 GNSS Signal Generator . 14
5.7.3 Sensor Simulators/Stimulators . 15
5.7.4 Telecoms RF Simulators . 15
5.7.5 GBLS output measurement data . 16
6 Horizontal and Vertical Position Accuracy . 16
6.1 Test Objectives & Case definitions . 16
6.2 Method of Test . 16
6.2.1 Introduction. 16
6.2.2 Initial conditions . 17
6.2.3 Measurement Procedures . 17
6.2.3.1 Test cases T-HVA-01/02/03: Moving location target . 17
6.2.3.2 Test cases T-HVA-04/05/06: Static location target . 17
6.2.4 Measurement Data Analysis . 17
6.2.4.1 General . 17
6.2.4.2 Horizontal Position Error . 17
6.2.4.2.1 Moving location target . 17
6.2.4.2.2 Static location target . 18
6.2.4.3 Vertical Position Error . 18
6.2.4.4 Confidence Intervals . 19
6.2.5 Pass/fail criteria . 19
6.2.6 GBLS Class Allocation . 19
7 Time-To-First-Fix (TTFF) . 19
7.1 Test Objectives & Case definitions . 19
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4 ETSI TS 103 246-5 V1.3.1 (2020-10)
7.2 Method of Test . 20
7.2.1 Introduction. 20
7.2.2 Initial conditions . 20
7.2.3 Measurement Procedures . 20
7.2.3.1 Test cases T-TTF-01 to -05: Moving location target . 20
7.2.3.2 Test cases T-TTF-05 to -08: Static location target . 21
7.3 Pass/fail criteria . 21
7.4 GBLS Class Allocation . 21
8 Position Authenticity . 21
8.1 Test Objectives & Case definitions . 21
8.2 Method of test . 22
8.2.1 Introduction. 22
8.2.2 Initial conditions . 22
8.2.3 Measurement procedures . 22
8.2.3.1 Test cases T-PA-01 and T-PA-02: Moving location target . 22
8.2.3.2 Test cases T-PA-03 and T-PA-04: Static location target . 23
8.2.4 Measurement Data Analysis . 23
8.2.4.1 Probability of False Alarm (Test cases T-PA-01 and T-PA-03) . 23
8.2.4.2 Probability of Detection (Test cases T-PA-02 and T-PA-04) . 23
8.3 Pass/Fail Criteria . 24
8.3.1 T-PA-01 and T-PA-03 . 24
8.3.2 T-PA-02 and T-PA-04 . 24
8.4 GBLS Class allocation . 24
9 Robustness to Interference . 24
9.1 Test Objectives & Case definitions . 24
9.2 Method of Test . 24
9.2.1 Initial conditions . 24
9.2.2 Measurement Procedures . 24
9.3 Pass/fail criteria . 25
9.4 GBLS Class Allocation . 25
10 GNSS sensitivity . 25
10.1 Test Objectives & Case definitions . 25
10.2 Method of Test . 26
10.2.1 Initial conditions . 26
10.2.2 Measurement Procedures . 26
10.3 Pass/fail criteria . 27
10.4 GBLS Class Allocation . 27
11 Position Integrity (Protection Level) . 28
11.1 Test Objectives & Case definitions . 28
11.2 Method of Test . 28
11.2.1 Initial conditions . 28
11.2.2 Measurement Procedures . 29
11.3 Pass/fail criteria . 29
11.4 GBLS Class Allocation . 29
12 Position day-to-day repeatability (Horizontal or Vertical plane) . 29
12.1 Test Objectives & Case definitions . 29
12.2 Method of Test . 30
12.2.1 Introduction. 30
12.2.2 Initial conditions . 30
12.2.3 Measurement Procedures . 30
12.2.3.1 Test cases T-DDR-01/02/03: Moving location target . 30
12.2.3.2 Test cases T-DDR-04/05/06: Static location target . 31
12.2.4 Measurement Data Analysis . 31
12.2.4.1 General . 31
12.2.4.2 Horizontal performance . 32
12.2.4.3 Vertical performance . 32
12.2.4.4 Confidence Intervals . 33
12.2.5 Pass/fail criteria . 33
12.2.6 GBLS Class Allocation . 33
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5 ETSI TS 103 246-5 V1.3.1 (2020-10)
13 Time-To-Fix Ambiguities (TTFA) . 33
13.1 Test Objectives & Case definitions . 33
13.2 Method of Test . 34
13.2.1 Introduction. 34
13.2.2 Initial conditions . 34
13.2.3 Measurement Procedures . 34
13.2.3.1 Test cases T-TTFA-01/02/03: Moving location target . 34
13.2.3.2 Test cases T-TTFA-04/05/06: Static location target . 35
13.2.4 Measurement Data Analysis . 35
13.2.4.1 General . 35
13.2.4.2 Time-To-Fix Ambiguities . 35
13.2.5 Pass/fail criteria and GBLS Class Allocation . 36
Annex A (normative): Test Configurations . 37
A.1 Anechoic Chamber Test Configuration . 37
A.2 Wired Connections Test Configuration . 37
Annex B (normative): Scenarios for tests . 38
B.1 GNSS Scenario . 38
B.1.1 General Scenario . 38
B.1.2 GNSS Scenario for the Position day-to-day repeatability Test Case . 38
B.2 Telecoms Scenarios . 39
B.3 Sensor Scenarios . 39
Annex C (normative): Formulae to convert East and North coordinates to Along- and Cross-
Track coordinates . 40
C.1 Coordinates conversion formulae . 40
Annex D (normative): Rules for statistical testing . 41
D.1 For 95 % success rate, 95 % Confidence Level . 41
D.2 For 90 % success rate, 95 % CL . 43
D.3 Formulae to compute the confidence interval for the mean value of one-dimensional errors . 44
D.4 Formulae to compute the confidence level for percentile values of one-dimensional errors . 45
Annex E (informative): GBLS Implementation profiles . 46
E.1 Overview . 46
E.2 Implementation Profile #1 . 47
E.3 Implementation Profile #2 . 48
E.4 Implementation Profile #3 . 49
E.5 Implementation Profile #4 . 50
E.6 Implementation Profile #5 . 51
E.7 Implementation Profile #6 . 52
E.8 Implementation Profile #7 . 53
Annex F (informative): Bibliography . 54
History . 55

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6 ETSI TS 103 246-5 V1.3.1 (2020-10)
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 Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and
Systems (SES).
The present document is part 5 of a multi-part deliverable covering the GNSS based location systems, as identified
below:
Part 1: "Functional requirements";
Part 2: "Reference Architecture";
Part 3: "Performance requirements";
Part 4: "Requirements for location data exchange protocols";
Part 5: "Performance Test Specification".
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
The increasing expansion of location-based applications aims to satisfy more and more complex and diversified user
requirements: this is highlighted for example by the widespread adoption of multi-functional smart-phones or by the
ever wider adoption of tracking devices (e.g. in transport), etc. This requirement for new and innovative location-based
applications is generating a requirement for increasingly complex location systems.
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7 ETSI TS 103 246-5 V1.3.1 (2020-10)
The wide spectrum of location-based applications identified in ETSI TR 103 183 [i.1] calls for a new and broader
concept for location systems, taking into account solutions in which GNSS technologies are complemented with other
technologies to improve robustness and performance. The notion of GNSS-based location systems is introduced and
defined in the present document.
Additional clauses and information related to the implementation in GNSS-based location systems of the various
differential GNSS technologies, namely D-GNSS, RTK and PPP are also included in order to facilitate the use of this
set of standards by manufacturers and servic
...