ETSI TR 103 573 V1.1.1 (2019-11)

Intelligent Transport Systems (ITS); Pre-standardization study of ITS test mode for operational devices in the field

DTR/ITS-00443

General Information

• Status: Published
• Publication Date: 17-Nov-2019
• Technical Committee: ITS WG4 - Media and Medium related
• Current Stage: 12 - Completion
• Due Date: 18-Nov-2019
• Completion Date: 18-Nov-2019

Standards Content (Sample)

ETSI TR 103 573 V1.1.1 (2019-11)






TECHNICAL REPORT
Intelligent Transport Systems (ITS);
Pre-standardization study of ITS test mode
for operational devices in the field

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2 ETSI TR 103 573 V1.1.1 (2019-11)



Reference
DTR/ITS-00443
Keywords
ITS, radio, testing

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3 ETSI TR 103 573 V1.1.1 (2019-11)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
Introduction . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definition of terms, symbols and abbreviations . 5
3.1 Terms . 5
3.2 Symbols . 6
3.3 Abbreviations . 6
4 Test mode specification . 6
4.1 Test mode overview . 6
4.2 Test mode service . 6
4.3 Test mode message format . 7
4.4 Test mode activation . 8
4.5 Separation of traffic . 9
4.5.1 General approach . 9
4.5.2 Certificate chain . 9
4.5.3 AA certificate properties . 9
4.5.4 AT certificate properties . 10
4.6 Test procedure . 10
4.6.1 Test item execution . 10
4.6.2 Test items . 10
4.7 Use cases . 11
4.7.1 General purpose . 11
4.7.2 Repair and maintenance in authorized workshops . 12
4.7.3 Periodic Technical Inspection (PTI) . 12
4.7.4 End-of-line test/initial test . 12
4.7.5 In-Field Inspection (IFI) . 13
History . 14

ETSI

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4 ETSI TR 103 573 V1.1.1 (2019-11)
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 Technical Committee Intelligent Transport Systems (ITS).
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.
Introduction
ITS station communication devices require testing to verify their conformance regarding the ITS protocol stack
implementation as well as the transmission and reception parameters. Therefore, an additional implementation of a test
mode and a corresponding message set is proposed. The present document shows the ability of testing the
communication of the devices under test in non-shielded environments. This includes but is not limited to over the air
tests that do not interfere with operational devices. Furthermore, it enables the identification of non-working and
damaged components crucial to the ITS communication using the test mode message set. This allows pro-active failure
detection as well as prevention of devices in the field. In context with Vision Zero efforts of the European Union [i.3], it
contributes largely to a reliable communications network upon which road safety is enhanced.
ETSI

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5 ETSI TR 103 573 V1.1.1 (2019-11)
1 Scope
The present document describes a test mode for the ITS protocol stack. The test mode provides the ability of testing RF
and functional requirements regarding the communication of devices. This includes but is not limited to over the air
tests in non-shielded environments without affecting operational ITS stations not targeted by the message.
2 References
2.1 Normative references
Normative references are not applicable in the present document.
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 TS 102 941: "Intelligent Transport Systems (ITS); Security; Trust and Privacy
Management".
[i.2] ETSI TS 103 097: "Intelligent Transport Systems (ITS); Security; Security header and certificate
formats".
[i.3] VISION ZERO White Paper: "Roadmap to a Single European Transport Area".
NOTE: Available at
https://ec.europa.eu/transport/sites/transport/files/themes/strategies/doc/2011_white_paper/white-paper-
illustrated-brochure_en.pdf.
[i.4] ETSI TS 102 940: "Intelligent Transport Systems (ITS); Security; ITS communications security
architecture and security management".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
Test ITS-AID: ITS-AID that is used for sending ITS facility layer message for test purposes
Test Mode (TM): state that enables specific tests of the ITS-S on functional and radio-frequency level
Test Mode ITS-AID: ITS-AID that is solely used for TMM
Test Mode Message (TMM): dedicated message type carrying test mode payload data
Test Mode Service (TMS): facility at the ITS-S facilities layer to generate, receive and process TMM
ETSI

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6 ETSI TR 103 573 V1.1.1 (2019-11)
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AA Authorization Authority
AID Application Identifier
AT Authorization Tickets
BTP Basic Transport Protocol
CA Cooperative Awareness
CAM Cooperative Awareness Message
CRL Certificate Revocation List
CTL Certificate Trusted List
DENM Decentralized Environmental Notification Message
DTS Dedicated Test System
EOL End Of Line
GN GeoNetworking
GNSS Global Navigation Satellite System
IFI In-Field Inspection
ITS Intelligent Transport Systems
ITS-S Intelligent Transport Systems Station
MAC Medium Access Control
OBD On Board Diagnostics
OBU On Board Unit
PDU Protocol Data Unit
PTI Periodic Technical Inspection
RF Radio Frequency
SSP Service Specific Permission
SUT System Under Test
TMS Test Mode Service
V2X Vehicle to Everything
4 Test mode specification
4.1 Test mode overview
The test mode is a means to verify RF and functional requirements of the ITS protocol communications. This requires
access to functionality located in the facility layer of the ITS protocol stack as well as new functionality to conduct
these tests. Therefore, a Test Mode Service (TMS) with specific permissions to access this functionality is needed. The
test mode should be usable in non-shielded environments without affecting operational ITS stations. Hence, a separation
of traffic, provided by usage of a dedicated certificate chain, is required.
4.2 Test mode service
The test mode service should be located within the facility layer. It should have the ability to send proprietary message
types (test mode messages) and have specific permissions to access ITS stations protocol functions. TMS should only
receive messages over a dedicated BTP port. It should be able to trigger CAMs, DENMs or other messages at their
respective facility layer services for testing purposes when in test mode state and only then. To protect operational ITS
station traffic from interference as well as the test mode service from abuse, a dedicated certificate chain is used once
test mode is activated. These certificates have strong restrictions and apply separate SSPs to the service. Only DTS
should have permission to trigger events through test mode messages, while SUTs should only receive certificates with
permissions to send test mode message response messages. TMS should only be able to trigger events within the ITS
protocol stack if a corresponding test mode AT certificate is active.
ETSI

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Test
Mode
Service
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