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TECHNICAL SPECIFICATION
Intelligent Transport Systems (ITS);
Vehicular Communications;
Basic Set of Applications;
Facilities layer protocols and communication requirements
for infrastructure services
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2 ETSI TS 103 301 V1.2.1 (2018-08)
Reference
RTS/ITS-00180
Keywords
application, data, ITS, protocol, requirements
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3 ETSI TS 103 301 V1.2.1 (2018-08)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 8
4 Infrastructure services introduction and general requirements . 9
4.1 Naming convention . 9
4.2 Infrastructure services in the ITS communications architecture. 10
4.3 Infrastructure services in the ITS organizational architecture . 11
4.4 Interfaces of the infrastructure services . 11
4.4.1 Interface between Application layer and Facilities layer . 11
4.4.2 Interface between Facilities layer and Management entity . 12
4.4.3 Interface between Facilities layer and Security entity . 12
4.4.4 Interface between Facilities layer and the N&T layer. 12
4.5 Common protocol requirements for infrastructure services . 12
4.5.1 Security for messages used by infrastructure . 12
4.5.2 Message payload encapsulation . 13
4.5.3 Message encoding scheme . 13
4.6 Protocol version . 13
4.6.1 Protocol version definition . 13
4.6.2 Protocol version handling . 13
5 Traffic Light Maneuver (TLM) service . 14
5.1 TLM service overview . 14
5.2 TLM service . 15
5.3 TLM service message and version . 15
5.4 TLM service dissemination . 15
5.4.1 TLM service identification . 15
5.4.2 TLM service trigger, update, repetition and termination . 15
5.4.3 TLM service communication requirements . 15
5.4.3.1 TLM service communication overview . 15
5.4.3.2 TLM service communication requirements for short range access technologies . 15
5.4.3.3 TLM service communication requirements for long range communication . 17
6 Road and Lane Topology (RLT) service . 18
6.1 RLT service overview . 18
6.2 RLT service . 18
6.3 RLT service message and version . 19
6.4 RLT service dissemination . 19
6.4.1 RLT service identification . 19
6.4.2 RLT service trigger, update, repetition and termination . 19
6.4.3 RLT service communication requirements . 19
6.4.3.1 RLT service communication overview . 19
6.4.3.2 RLT service communication requirements for short range access technologies . 19
6.4.3.3 RLT service dissemination parameters for long range communication . 21
7 Infrastructure to Vehicle Information (IVI) service . 21
7.1 IVI service overview . 21
7.2 IVI service . 22
ETSI
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4 ETSI TS 103 301 V1.2.1 (2018-08)
7.3 IVI service message and version . 22
7.4 IVI service dissemination . 22
7.4.1 IVI service identification . 22
7.4.2 IVI service trigger, update, repetition and termination . 22
7.4.3 IVI service communication requirements . 23
7.4.3.1 IVI service communication parameters for short-range communication . 23
7.4.3.2 IVI service dissemination parameters for long-range communication . 26
8 Traffic Light Control (TLC) service . 26
8.1 TLC service overview . 26
8.2 TLC service . 27
8.3 TLC service message and version . 27
8.4 TLC service dissemination . 28
8.4.1 TLC service identification . 28
8.4.2 TLC service trigger, update, repetition and termination . 28
8.4.3 TLC service communication parameters . 28
8.4.3.1 TLC service communication overview . 28
8.4.3.2 TLC service communication parameters for short range access technologies . 28
8.4.3.3 TLC service communication parameters for long range communication. 31
9 GNSS positioning correction (GPC) service . 32
9.1 GPC service overview . 32
9.2 GPC service . 32
9.3 GPC service message and version . 32
9.4 GPC service dissemination . 32
9.4.1 GPC service identification . 32
9.4.2 GPC service trigger, update, repetition and termination . 32
9.4.3 GPC service communication requirements . 32
9.4.3.1 GPC service communication overview . 32
9.4.3.2 GPC service communication requirements for short range access technologies . 32
9.4.3.3 GPC service dissemination parameters for long range communication . 34
10 Basic services running on ITS infrastructure devices . 34
10.1 Basic service overview . 34
10.2 DEN service on ITS infrastructure devices . 34
10.3 CA service on ITS infrastructure devices . 35
11 Communication Profiles . 35
11.1 Introduction . 35
11.2 Basic communication profile settings. 35
11.3 CPS_001 . 36
11.4 CPS_002 . 36
11.5 CPS_003 . 37
11.6 CPS_004 . 37
11.7 CPS_005 . 37
12 Security Profile . 38
Annex A (informative): ASN.1 specification of SPATEM . 39
Annex B (informative): ASN.1 specification of MAPEM . 40
Annex C (informative): ASN.1 specification of IVIM . 41
Annex D (informative): ASN.1 specification of SREM . 42
Annex E (informative): ASN.1 specification of SSEM . 43
Annex F (informative): ASN.1 specification of RTCMEM . 44
History . 45
ETSI
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5 ETSI TS 103 301 V1.2.1 (2018-08)
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 Intelligent Transport Systems
(ITS).
The present document includes the integration of infrastructure based application protocols within the ITS message
environment.
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 infrastructure services are application support facilities provided by the Facilities layer that construct, manage and
process messages distributed from infrastructure to end-users or vice-versa based on payload received from the
application. The infrastructure services specified in the present document support infrastructure-based applications in
order to achieve communication interoperability, and may be implemented in parallel to other services in an ITS-S.
ETSI
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6 ETSI TS 103 301 V1.2.1 (2018-08)
1 Scope
The present document provides specifications of infrastructure related ITS services to support communication between
infrastructure ITS equipment and traffic participants using ITS equipment (e.g. vehicles, pedestrians). It defines services
in the Facilities layer for communication between the infrastructure and traffic participants. The specifications cover the
protocol handling for infrastructure-related messages as well as requirements to lower layer protocols and to the
security entity.
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
https://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] ETSI EN 302 665 (V1.1.1): "Intelligent Transport Systems (ITS); Communications Architecture".
[2] ETSI TS 102 894-2 (V1.3.1): "Intelligent Transport Systems (ITS); Users and applications
requirements; Part 2: Applications and facilities layer common data dictionary".
[3] ETSI EN 302 636-4-1 (V1.3.1): "Intelligent Transport Systems (ITS); Vehicular Communications;
GeoNetworking; Part 4: Geographical addressing and forwarding for point-to-point and point-to-
multipoint communications; Sub-part 1: Media-Independent Functionality".
[4] ETSI EN 302 636-5-1 (V2.1.1): "Intelligent Transport Systems (ITS); Vehicular Communications;
GeoNetworking; Part 5: Transport Protocols; Sub-part 1: Basic Transport Protocol".
[5] Void.
[6] ETSI TS 103 097 (V1.3.1): "Intelligent Transport Systems (ITS); Security; Security header and
certificate formats".
[7] CEN ISO/TS 19321-2015: "Intelligent transport systems - Cooperative ITS - Dictionary of in-
vehicle information (IVI) data structures".
[8] CEN ISO/TS 19091: "Intelligent transport systems - Cooperative ITS - Using V2I and I2V
communications for applications related to signalized intersections".
[9] ETSI EN 302 931 (V1.1.1): "Intelligent Transport Systems (ITS); Vehicular Communications;
Geographical Area Definition".
[10] ISO/TS 17427:2014: "Intelligent transport systems - Cooperative systems - Roles and
responsibilities in the context of cooperative ITS based on architecture(s) for cooperative
systems".
[11] Recommendation ITU-T X.691/ISO/IEC 8825-2 (1997-12): "Information technology - ASN.1
encoding rules: Specification of Packed Encoding Rules (PER)".
[12] ETSI EN 302 637-2: "Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set
of Applications; Part 2: Specification of Cooperative Awareness Basic Service".
ETSI
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7 ETSI TS 103 301 V1.2.1 (2018-08)
[13] ETSI EN 302 637-3: "Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set
of Applications; Part 3: Specifications of Decentralized Environmental Notification Basic
Service".
[14] ETSI TS 102 965: "Intelligent Transport Systems (ITS); Application Object Identifier (ITS-AID);
Registration".
[15] ETSI TS 103 248 (V1.2.1): "Intelligent Transport Systems (ITS); GeoNetworking; Port Numbers
for the Basic Transport Protocol (BTP)".
[16] ETSI EN 302 663: "Intelligent Transport Systems (ITS); Access layer specification for Intelligent
Transport Systems operating in the 5 GHz frequency band".
[17] ETSI TS 136 300: "LTE; Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved
Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2
(3GPP TS 36.300 version 14.2.0 Release 14)".
[18] ETSI TS 102 636-4-2: "Intelligent Transport Systems (ITS); Vehicular Communications;
GeoNetworking; Part 4: Geographical addressing and forwarding for point-to-point and
point-to-multipoint communications; Sub-part 2: Media-dependent functionalities for ITS-G5".
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 102 965 (V1.2.1): "Intelligent Transport Systems (ITS); Application Object Identifier
(ITS-AID); Registration".
[i.2] ISO/TS 17423:2014: "Intelligent Transport Systems - Cooperative Systems - Application
requirements for selection of communication profiles".
[i.3] ISO/TS 14823: "Traffic and travel information - Messages via media independent stationary
dissemination systems - Graphic data dictionary for pre-trip and in-trip information dissemination
systems".
TM
[i.4] IEEE 802.11 -2012: "IEEE Standard for Information technology - Telecommunications and
information exchange between systems - Local and metropolitan area networks-Specific
requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)
Specifications".
[i.5] ETSI TS 102 723-5 (V1.1.1): "Intelligent Transport Systems (ITS); OSI cross-layer topics; Part 5:
Interface between management entity and facilities layer".
[i.6] IANA Service Name and Transport Protocol Port Number Registry (2016-04-07).
NOTE: Available at https://www.iana.org/assignments/service-names-port-numbers/service-names-port-
numbers.txt.
[i.7] IETF RFC 791: "IETF Internet Protocol".
[i.8] IETF RFC 768: "IETF User Datagram Protocol".
[i.9] IETF RFC 793: "IETF Transmission Control Protocol".
ETSI
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8 ETSI TS 103 301 V1.2.1 (2018-08)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
destination area: geographic area in which a message is disseminated
NOTE: The definition is compliant to ETSI EN 302 637-3 [13].
driver awareness zone: area in which the driver will be informed about upcoming situations
NOTE: The definition is compliant to CEN ISO/TS 19321 [7].
ITS-G5: access technology to be according to ETSI EN 302 663 [16]
long range: communication with coverage of more than 500 m (e.g. cellular systems)
LTE-V2X sidelink: access technology using V2X sidelink communication according to ETSI TS 136 300 [17]
MAPEM: road/lane topology and traffic maneuver message
NOTE: As defined in Annex B including the corresponding extensions defined in CEN ISO/TS 19091 [8].
minimum dissemination area: minimum area where an information is disseminated by an ITS-S based on application
requirements
NOTE: The definition is compliant to CEN ISO/TS 19321 [7].
relevance zone: area where the information is applicable
NOTE: The definition is compliant to CEN ISO/TS 19321 [7].
short range: communication with coverage of approximately 500 m (e.g. WLAN)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
3GPP 3rd Generation Partnership Project
AC Access Category
AC_BE Access Category Best Effort
AC_BK Access Category Background
AC_VI Access Category Video
AC_VO Access Category Voice
ADU Application Data Unit
AID Action IDentifier
ASN Anstract Syntax Notation
BTP Basic Transport Protocol
CA Certification Authority
C-ITS Cooperative ITS
C-ITS-S Cooperative ITS-Station
DAZ Driver Awareness Zone
DE Data Element
DEN Decentralized Environmental Notification
DENM DEN Message
E-UTRA Evolved UTRA
GBC GeoBroadCast
GN GeoNetworking
GNSS Global Navigation Satellite System
GPC GNSS Postioning Correction
GPCH General Purpose Channel
ETSI
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9 ETSI TS 103 301 V1.2.1 (2018-08)
IANA Internet Assigned Numbers Authority
IP Internet Protocol
ISM Industrial, Scientific and Medical
ITIS International Traveler Information Systems
ITS Intelligent Transport System
ITS-AID ITS-Application IDentifier
ITS-S ITS Station
ITU-T International Telecommunication Union - Telecommunication
IVI Infrastructure to Vehicle Information
IVIM Infrastructure to Vehicle Information Message
LTE Long Term Evolution
LTE-V2X LTE-Vehicle to Everything
MAPEM MAP (topology) Extended Message
MDA Minimum Dissemination Area
MF-SAP Management Facilities layer SAP
MSB Most Significant Bit
MTU Maximum Transmit Unit
PDU Protocol Data Unit
PER Packet Encoding Rule
R-ITS-S Roadside ITS Station
RLT Road and Lane Topology
RTCM Radio Technical Commission For Maritime Services
RTCMEM RTCM Extended Message
RTK Real Time Kinematic
RZ Relevance Zone
SAP Service Access Primitive
SCH Service Channel
SFCH Safety Chanel
S
...