ETSI TS 103 246-3 V1.2.1 (2017-03)

Satellite Earth Stations and Systems (SES); GNSS based location systems; Part 3: Performance requirements

RTS/SES-00408

General Information

• Status: Published
• Publication Date: 05-Mar-2017
• Technical Committee: SES SCN - Satellite Communications and Navigation
• Current Stage: 12 - Completion
• Due Date: 01-Mar-2017
• Completion Date: 06-Mar-2017
• Mandate: M/496

Standards Content (Sample)

ETSI TS 103 246-3 V1.2.1 (2017-03)






TECHNICAL SPECIFICATION
Satellite Earth Stations and Systems (SES);
GNSS based location systems;
Part 3: Performance requirements

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2 ETSI TS 103 246-3 V1.2.1 (2017-03)



Reference
RTS/SES-00408
Keywords
GNSS, location, navigation, performance,
receiver, satellite, system
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3 ETSI TS 103 246-3 V1.2.1 (2017-03)
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 . 8
3 Definitions and abbreviations . 9
3.1 Definitions . 9
3.2 Abbreviations . 11
4 Overview of GNSS based Location System Performance Features and Classes . 12
4.1 GNSS based Location System (GBLS) . 12
4.2 Performance Features . 13
4.3 Class of Performance requirements . 14
4.4 Use cases associated to Performance Features . 15
5 Performance Requirements . 15
5.1 General . 15
5.2 Horizontal Position Accuracy. 16
5.2.1 Definition . 16
5.2.2 Metrics . 16
5.2.3 Performance requirements . 17
5.2.3.1 Use case: Moving Location Target . 17
5.2.3.1.1 Operational environment: Open area . 17
5.2.3.1.2 Operational environment: Urban area . 18
5.2.3.1.3 Operational environment: Asymmetric area . 18
5.2.3.2 Use case: Static Location Target . 18
5.2.3.2.1 Operational environment: Open area . 18
5.2.3.2.2 Operational environment: Urban area . 19
5.2.3.2.3 Operational environment: Asymmetric area . 19
5.3 Vertical Position Accuracy . 19
5.3.1 Definition . 19
5.3.2 Metrics . 19
5.3.3 Performance requirements . 19
5.3.3.1 Use case: Moving Location Target . 19
5.3.3.1.1 Operational environment: Open area . 19
5.3.3.1.2 Operational environment: Urban area . 20
5.3.3.1.3 Operational environment: Asymmetric area . 20
5.3.3.2 Use case: Static Location Target . 20
5.3.3.2.1 Operational environment: Open area . 20
5.3.3.2.2 Operational environment: Urban area . 20
5.3.3.2.3 Operational environment: Asymmetric area . 21
5.4 GNSS Time Accuracy . 21
5.4.1 Definition . 21
5.4.2 Performance requirements . 21
5.4.2.1 Use case: Moving Location Target . 21
5.4.2.1.1 Operational environment: Open area . 21
5.4.2.1.2 Operational environment: Urban area . 21
5.4.2.1.3 Operational environment: Asymmetric area . 22
5.4.2.2 Use case: Static Location Target . 22
5.4.2.2.1 Operational environment: Open area . 22
5.4.2.2.2 Operational environment: Urban area . 22
5.4.2.2.3 Operational environment: Asymmetric area . 22
ETSI

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4 ETSI TS 103 246-3 V1.2.1 (2017-03)
5.5 Time-to-First-Fix (TTFF) . 23
5.5.1 Definition . 23
5.5.2 GBLS starting conditions . 23
5.5.3 Performance requirements . 24
5.5.3.1 Use case: Moving Location Target . 24
5.5.3.1.1 Operational environment: Open area . 24
5.5.3.1.2 Operational environment: Urban area . 24
5.5.3.1.3 Operational environment: Asymmetric area . 24
5.5.3.2 Use case: Static Location Target . 25
5.5.3.2.1 Operational environment: Open area . 25
5.5.3.2.2 Operational environment: Urban area . 25
5.5.3.2.3 Operational environment: Asymmetric area . 25
5.6 Position Authenticity . 26
5.6.1 Definition . 26
5.6.2 Metrics . 26
5.6.3 Performance requirements . 26
5.6.3.1 Specific conditions and interference threat scenarios . 26
5.6.3.2 Use case: Moving Location Target . 27
5.6.3.2.1 Operational environment: Open area . 27
5.6.3.2.2 Operational environment: Interference (Spoofing) Scenario . 27
5.6.3.3 Use case: Static Location Target . 27
5.6.3.3.1 Operational environment: Open area . 27
5.6.3.3.2 Operational environment: Interference (Spoofing) scenarios . 28
5.7 Robustness to Interference . 28
5.7.1 Definition . 28
5.7.2 Metrics . 28
5.7.3 Performances requirements . 28
5.7.3.1 Specific conditions and operational environment . 28
5.7.3.2 Use case 1: 20 MHz FM deviation . 29
5.7.3.3 Use case 2: 10 MHz FM deviation . 29
5.8 GNSS Se nsitivity . 30
5.8.1 Definition . 30
5.8.2 Metrics . 30
5.8.3 Performance requirements . 30
5.8.3.1 Operational scenario and specific masking conditions. 30
5.8.3.2 Use case 1: Open area and fine time assistance . 31
5.8.3.3 Use case 2: Asymmetric area and coarse time assistance . 31
5.9 Position Integrity (Protection Level) . 31
5.9.1 Definition . 31
5.9.2 Operational conditions . 32
5.9.3 Use case: Moving Location Target . 32
5.10 Position day-to-day repeatability in the Horizontal Plane . 32
5.10.1 Definition . 32
5.10.2 Metrics . 33
5.10.3 Performance requirements . 34
5.10.3.1 Use case: Moving Location Target . 34
5.10.3.1.1 Operational environment: Open area . 34
5.10.3.1.2 Operational environment: Urban area . 34
5.10.3.1.3 Operational environment: Asymmetric area . 34
5.10.3.2 Use case: Static Location Target . 34
5.10.3.2.1 Operational environment: Open area . 34
5.10.3.2.2 Operational environment: Urban area . 35
5.10.3.2.3 Operational environment: Asymmetric area . 35
5.11 Position day-to-day repeatability in the Vertical Plane . 35
5.11.1 Definition . 35
5.11.2 Metrics . 35
5.11.3 Performance requirements . 36
5.11.3.1 Use case: Moving Location Target . 36
5.11.3.1.1 Operational environment: Open area . 36
5.11.3.1.2 Operational environment: Urban area . 37
5.11.3.1.3 Operational environment: Asymmetric area . 37
5.11.3.2 Use case: Static Location Target . 37
ETSI

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5 ETSI TS 103 246-3 V1.2.1 (2017-03)
5.11.3.2.1 Operational environment: Open area . 37
5.11.3.2.2 Operational environment: Urban area . 38
5.11.3.2.3 Operational environment: Asymmetric area . 38
5.12 Time-to-Fix-Ambiguity (TTFA) . 38
5.12.1 Definition . 38
5.12.2 Metrics . 38
5.12.3 Performance requirements . 39
5.12.3.1 Use case: Moving Location Target . 39
5.12.3.1.1 Operational environment: Open area . 39
5.12.3.1.2 Operational environment: Urban area . 39
5.12.3.1.3 Operational environment: Asymmetric area . 39
5.12.3.2 Use case: Static Location Target . 40
5.12.3.2.1 Operational environment: Open area . 40
5.12.3.2.2 Operational environment: Urban area . 40
5.12.3.2.3 Operational environment: Asymmetric area . 40
Annex A (normative): Applicable Conditions and Scenarios. 42
A.1 General . 42
A.2 External Location Systems Parameters . 42
A.2.1 GNSS system parameters . 42
A.2.2 Wireless systems parameters . 42
A.3 Operational Environments . 43
A.3.1 Operational Environments definition . 43
A.3.2 Sky Attenuation Conditions . 43
A.3.3 Multipath Level . 45
A.3.4 Magnetic Conditions . 45
A.3.4.1 Output model . 45
A.3.4.2 Perturbation level . 46
A.3.5 Telecommunications Beacons . 46
A.4 Moving Location Target Scenario - Track trajectory . 47
A.5 Moving Location Target Scenario - Straight line trajectory. 48
A.6 Interference source definition . 48
A.7 Authenticity Threat Scenarios . 49
A.7.1 Scenarios description . 49
A.7.2 Moving Location Targets . 49
A.7.3 Static Location Targets . 49
A.7.4 Scenario parameters . 50
A.7.4.1 Attack classification . 50
A.7.4.2 Total spoofing power . 50
A.7.4.3 Misleading information categories . 51
A.8 Integrity Threat Scenarios . 51
A.8.1 Integrity Threat definition . 51
A.8.2 Non-LoS tracking . 51
A.8.3 Pseudo-range Ramp errors . 52
Annex B (informative): Differential GNSS: GBLS implementing differential GNSS and
integrity performance through RTCM standards . 53
B.1 Specific case of a GBLS implementing differential GNSS . 53
B.2 D-GNSS monitoring and integrity concept in RTCM standards . 54
B.2.1 Overall concept and implementation . 54
B.2.2 Monitoring and alerting . 55
B.2.3 D-GNSS integrity performance and system implementation . 55
Annex C (informative): Bibliography . 57
History . 58

ETSI

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6 ETSI TS 103 246-3 V1.2.1 (2017-03)
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 IPR's 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 Technical Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and
Systems (SES).
The present document is part 3 of a multi-part deliverable. Full details of the entire series can be found in part 1 [7].
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 applic
...