ETSI TS 103 246-3 V1.1.1 (2015-07)

ETSI TS 103 246-3 V1.1.1 (2015-07)






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 V1.1.1 (2015-07)



Reference
DTS/SES-00332
Keywords
GNSS, location, navigation, performance,
receiver, satellite, system
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3 ETSI TS 103 246-3 V1.1.1 (2015-07)
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 and abbreviations . 9
3.1 Definitions . 9
3.2 Abbreviations . 10
4 Overview of GNSS-based Location System Performance Features and Classes . 11
4.1 GNSS-based Location System (GBLS) . 11
4.2 Performance Features . 12
4.3 Class of Performance requirements . 13
4.4 Use cases associated to Performance Features . 13
5 Performance Requirements . 14
5.1 General . 14
5.2 Horizontal Position Accuracy. 14
5.2.1 Definition . 14
5.2.2 Metrics . 14
5.2.3 Performance requirements . 16
5.2.3.1 Use case: Moving Location Target . 16
5.2.3.1.1 Operational environment: Open area . 16
5.2.3.1.2 Operational environment: Urban area . 16
5.2.3.1.3 Operational environment: Asymmetric area . 17
5.2.3.2 Use case: Static Location Target . 17
5.2.3.2.1 Operational environment: Open area . 17
5.2.3.2.2 Operational environment: Urban area . 18
5.2.3.2.3 Operational environment: Asymmetric area . 18
5.3 Vertical Position Accuracy . 18
5.3.1 Definition . 18
5.3.2 Metrics . 18
5.3.3 Performance requirements . 18
5.3.3.1 Use case: Moving Location Target . 18
5.3.3.1.1 Operational environment: Open area . 18
5.3.3.1.2 Operational environment: Urban area . 19
5.3.3.1.3 Operational environment: Asymmetric area . 19
5.3.3.2 Use case: Static Location Target . 19
5.3.3.2.1 Operational environment: Open area . 19
5.3.3.2.2 Operational environment: Urban area . 20
5.3.3.2.3 Operational environment: Asymmetric area . 20
5.4 GNSS Time Accuracy . 20
5.4.1 Definition . 20
5.4.2 Performance requirements . 20
5.4.2.1 Use case: Moving Location Target . 20
5.4.2.1.1 Operational environment: Open area . 20
5.4.2.1.2 Operational environment: Urban area . 20
5.4.2.1.3 Operational environment: Asymmetric area . 21
5.4.2.2 Use case: Static Location Target . 21
5.4.2.2.1 Operational environment: Open area . 21
5.4.2.2.2 Operational environment: Urban area . 21
5.4.2.2.3 Operational environment: Asymmetric area . 21
5.5 Time-to-First-Fix (TTFF) . 22
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4 ETSI TS 103 246-3 V1.1.1 (2015-07)
5.5.1 Definition . 22
5.5.2 GBLS starting conditions . 22
5.5.3 Performance requirements . 23
5.5.3.1 Use case: Moving Location Target . 23
5.5.3.1.1 Operational environment: Open area . 23
5.5.3.1.2 Operational environment: Urban area . 23
5.5.3.1.3 Operational environment: Asymmetric area . 23
5.5.3.2 Use case: Static Location Target . 24
5.5.3.2.1 Operational environment: Open area . 24
5.5.3.2.2 Operational environment: Urban area . 24
5.5.3.2.3 Operational environment: Asymmetric area . 25
5.6 Position Authenticity . 25
5.6.1 Definition . 25
5.6.2 Metrics . 25
5.6.3 Performance requirements . 25
5.6.3.1 Specific conditions and interference threat scenarios . 25
5.6.3.2 Use case: Moving Location Target . 26
5.6.3.2.1 Operational environment: Open area . 26
5.6.3.2.2 Operational environment: Interference (Spoofing) Scenario . 26
5.6.3.3 Use case: Static Location Target . 26
5.6.3.3.1 Operational environment: Open area . 26
5.6.3.3.2 Operational environment: Interference (Spoofing) scenarios . 26
5.7 Robustness to Interference . 27
5.7.1 Definition . 27
5.7.2 Metrics . 27
5.7.3 Performances requirements . 27
5.7.3.1 Specific conditions and operational environment . 27
5.7.3.2 Use case 1: 20 MHz FM deviation . 27
5.7.3.3 Use case 2: 10 MHz FM deviation . 28
5.8 GNSS Se nsitivity . 29
5.8.1 Definition . 29
5.8.2 Metrics . 29
5.8.3 Performance requirements . 29
5.8.3.1 Operational scenario and specific masking conditions. 29
5.8.3.2 Use case 1: Open area and fine time assistance . 30
5.8.3.3 Use case 2: Asymmetric area and coarse time assistance . 30
5.9 Position Integrity (Protection Level) . 30
5.9.1 Definition . 30
5.9.2 Operational conditions . 31
5.9.3 Use case: Moving Location Target . 31
Annex A (Normative): Applicable Conditions and Scenarios. 32
A.1 General . 32
A.2 External Location Systems Parameters . 32
A.2.1 GNSS system parameters . 32
A.2.2 Wireless systems parameters . 32
A.3 Operational Environments . 33
A.3.1 Operational Environments definition . 33
A.3.2 Sky Attenuation Conditions . 33
A.3.3 Multipath Level . 35
A.3.4 Magnetic Conditions . 35
A.3.4.1 Output model . 35
A.3.4.2 Perturbation level . 36
A.3.5 Telecommunications Beacons . 36
A.4 Moving Location Target Scenario - Track trajectory . 37
A.5 Moving Location Target Scenario - Straight line trajectory. 38
A.6 Interference source definition . 38
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5 ETSI TS 103 246-3 V1.1.1 (2015-07)
A.7 Authenticity Threat Scenarios . 39
A.7.1 Scenarios description . 39
A.7.2 Moving Location Targets . 39
A.7.3 Static Location Targets . 39
A.7.4 Scenario parameters . 40
A.7.4.1 Attack classification . 40
A.7.4.2 Total spoofing power . 40
A.7.4.3 Misleading information categories . 41
A.8 Integrity Threat Scenarios . 41
A.8.1 Integrity Threat definition . 41
A.8.2 Non-LoS tracking . 41
A.8.3 Pseudo-range Ramp errors . 41
Annex B (informative): Bibliography . 43
History . 44

ETSI

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6 ETSI TS 103 246-3 V1.1.1 (2015-07)
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 (http://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 covering GNSS-based Location Systems (GBLS), 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 proliferation of location-based services is based on several trends in user applications and devices; these
include notably the widespread adoption of multi-functional smart-phones etc., and the wider adoption of tracking
devices (e.g. in transport). This need for new and innovative location-based services is generating a need for
increasingly complex location systems. These systems are designed to deliver location-related information for one or
more location targets to user applications.
The wide spectrum of technical features identified in ETSI TR 103 183 [i.1] calls for a new and broader concept for
location systems, taking into account hybrid solutions in which GNSS technologies are complemented with other
technology sensors to improve robustness and the performance.
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7 ETSI TS 103 246-3 V1.1.1 (2015-07)
1 Scope
The present document addresses performance requirements for GNSS-based Location Systems (GBLSs) that combine
Global Navigation Satellite Systems (GNSS - e.g. Galileo™) and other navigation technologies with telecommunication
networks for delivery of location-based services.
The present document defines Performance Features applicable to GBLS and specifies the conditions and requirements
for these Performance Features.
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
http://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.
[1] European GNSS (Galileo™) Open Service (Issue 1.1): "Signal In Space Interface Control
Document".
[2] IS-GPS-200 (March 7, 2006): "Revision D, Navstar GPS Space Segment/Navigation User
Interfaces".
[3] IS-GPS-705 (September 22, 2005): "Navstar GPS Space Segment/User Segment L5 Interfaces".
[4] IS-GPS-800 (September 4, 2008): "Navstar GPS Space Segment/User Segment L1C Interfaces".
[5] "Global Navigation Satellite System GLONASS Interface Control Document", Version 5, 2002.
[6] BDS-SIS-ICD-B1I-2.0 (December 2013): "BeiDou Navigation Satellite System Signal In Space
Interface Control Document Open Service Signal (Version 2.0)".
[7] ETSI TS 103 246-1: "Satellite Earth Stations and Systems (SES); GNSS based location systems;
Part 1: Functional requirements".
[8] ETSI TS 103 246-2: "Satellite Earth Stations and Systems (SES); GNSS based location systems;
Part 2: Reference Architecture".
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 TR 103 183: "Satellite Earth Stations and Systems (SES); Global Navigation Satellite
Systems (GNSS) based applications and standardisation needs".
[i.2] IEEE 802.11™: "Wireless Local Area Networks".
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8 ETSI TS 103 246-3 V1.1.1 (2015-07)
[i.3] IEEE 802.15™: "Wireless Personal Area Network".
[i.4] IEEE 802.15.1™ (for Bluetooth).
[i.5] IEEE 802.15.4a™ (for low rate WPAN).
[i.6] ETSI TS 145 001: "Digital cellular telecommunications system (Phase 2+); Physical layer on the
radio path; General description (3GPP TS 45.001)".
[i.7] ETSI TS 125 104: "Universal Mobile Telecommunications System (UMTS); Base Station (BS)
radio transmission and reception (FDD) (3GPP TS 25.104)".
[i.8] ETSI TS 136 171: "LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Requirements
for Support of Assisted Global Navigation Satellite System (A-GNSS) (3GPP TS 36.171)".
[i.9] R. Grover Brown and Gerald Y. Chin: "GPS RAIM: Calculation of Threshold and Protection
Radius Using Chi-Square Methods - A Geometric Approach", Global Positioning System: Inst.
Navigat., Volume V, pages 155-179, 1997.
[i.10] Juan Blanch et al.: "An Optimized Multiple Hypothesis RAIM Algorithm for Vertical Guidance",
Proceedings of ION GNSS 2007, Fort Worth (TX) September 2007.
[i.11] Miguel Azaola et al.: "Isotropy-Based Protection Levels: a Novel Method for Autonomous
Protection Level Computation with Minimum Assumptions", NAVITEC 2008, Noordwijk (The
Netherlands), December 2008.
nd
[i.12] Clark, B., Bevly, D.: "FDE Implementations for a Low-Cost GPS/INS Module", 22 International
Meeting of the Satellite Division of The Institute of Navigation, Savannah, GA, September 22-25,
2009.
[i.13] Walter, T., Enge, P., Blanch, J. and Pervan, B.: "Worldwide Vertical Guidance of Aircraft Based
on Modernised GPS and New Integrity Augmentations", Proceedings of the IEEE Volume 96,
Number 12, December 2008.
[i.14] Gratton, L., Joerger, M., Pervan, B: "Carrier Phase Relative RAIM Algorithms and Protection
Level Derivation", Journal of Navigation Volume 63, Number 2, April 2010.
st
[i.15] Lee, Y: "Optimization of Position Domain Relative RAIM", ION GNSS 21 International
Technical Meeting of the Satellite Division, Savannah, GA, September 16-19, 2008.
[i.16] M. Spangenberg PhD Thesis: "Safe navigation for vehicles", Ecole doctorale Mathématiques,
Informatique et Télécommunications de Toulouse, Laboratoire de Télécommunications Spatiales
et Aéronautiques (TéSA), June 2009.
[i.17] J.L. Farrell: "Full integrity testing for GPS/INS", Journal of the institute of na
...