EN 17905:2023

SLOVENSKI STANDARD
01-april-2024
Inteligentni transportni sistemi - e-Varnost - e-Klic HLAP v hibridnih omrežnih
okoljih s komutiranim vezjem/paketno komutiranim omrežjem
Intelligent transport systems - eSafety - eCall HLAP in hybrid circuit switched/packet
switched network environments
Intelligente Verkehrssysteme - eSicherheit - Übergeordnetes eCall-Anwendungsprotokoll
(HLAP) in hybriden geschalteten Netzwerkumgebungen
Systèmes de transport intelligents - eSafety - HLAP d’eCall dans les environnements
réseaux hybrides à commutation de circuits et de paquets
Ta slovenski standard je istoveten z: EN 17905:2023
ICS:
03.220.20 Cestni transport Road transport
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17905
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2023
EUROPÄISCHE NORM
ICS 03.220.20; 35.240.60
English Version
Intelligent transport systems - eSafety - eCall HLAP in
hybrid circuit switched/packet switched network
environments
Systèmes de transport intelligents - eSafety - HLAP Intelligente Verkehrssysteme - eSicherheit -
d'eCall dans les environnements réseaux hybrides à Übergeordnetes eCall-Anwendungsprotokoll (HLAP) in
commutation de circuits et de paquets hybriden geschalteten Netzwerkumgebungen
This European Standard was approved by CEN on 22 October 2023.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17905:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Symbols and abbreviations . 9
5 Conformance . 9
6 General overview of the eCall session for Pan European eCall . 10
7 Requirements . 11
7.1 General. 11
7.2 General requirements . 11
7.2.1 Enabled IVS . 11
7.2.2 Enabled PSAP . 12
7.3 Procedures following power-up of the in-vehicle system: self-test . 12
7.4 Activation . 13
7.5 Call setup (IVS) . 13
7.5.1 General. 13
7.5.2 eCall activation . 13
7.5.3 eCall in progress . 13
7.5.4 Domain selection . 13
7.5.5 Fallback . 15
7.5.6 Domain handover . 15
7.6 PSAP application features . 16
7.6.1 General. 16
7.6.2 Logging of MSD transfer type . 16
7.6.3 MSD (update) request . 16
7.6.4 Information to operator about hybrid situation . 17
7.7 Handling non equipped situations / error cases . 17
7.7.1 Network registration fails . 17
7.7.2 Other issues . 17
8 Third party services supported eCall (TPS-eCall) . 17
9 Defences against attack (Security provisions) . 17
10 Quality of service requirements . 17
11 Test and conformance requirements . 17
12 Marking, labelling and packaging . 18
13 Declaration of patents and intellectual property . 18
Annex A (informative) Transitional Use Cases . 19
Bibliography . 21

European foreword
This document (EN 17905:2023) has been prepared by Technical Committee CEN/TC 278 “Intelligent
transport systems”, the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2024, and conflicting national standards shall be
withdrawn at the latest by May 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document is the result of narrowing down the scope of PREN 17184 (during its review and upgrade
to EN) to exclusively describe the eCall High Level Application Protocols in packet switched networks and
as such partly supersedes CEN/TS 17184.
The document complements EN 16062 and prEN 17184.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
An eCall is an emergency call generated either automatically via activation of in-vehicle sensors or
manually by the vehicle occupants; when activated, to provide notification and relevant location
information to the most appropriate Public Safety Answering Point (PSAP), by means of mobile wireless
communications networks and carries a defined standardized minimum set of data, notifying that there
has been an incident that requires response from the emergency services and establishes an audio
channel between the occupants of the vehicle and the most appropriate PSAP.
NOTE The term PSAP, which is most widely used in the eCall documentation, European Commission
documents, etc., is used throughout this document and equates to the term emergency call response centre used in
the ITS Implementation Directive.
EN 15722 specifies a standardized MSD for eCall, and EN 16072 specifies pan-European eCall operating
requirements (for third party systems, EN 16102 specifies third party services supporting eCall operating
requirements; see EC Communication on eCall Implementation 2009 [COM(2009) 434 final] and Official
Journal eCall Recommendation C_2011_6269, for more information).
The pan-European eCall are made using Public Land Mobile Networks (PLMN) for which operating
requirements are specified in a number of ETSI standards and technical specifications. In order to provide
the eCall service across a wireless network, high level application protocols are required as an essential
element to affect this service provision. Originally PLMNs were circuit switched networks for which
EN 16062 specifies High Level Application Protocols. In these networks eCall uses Teleservice No 12
(TS12) and in-band modem transfer of data.
Over time new communications technologies have become available. These technologies use so called
‘packet switched’ technologies using Internet Protocols (IP). Particularly, 3GPP has evolved a
communication management system called IMS (IP Multimedia Subsystem) which is suitable to operate
over a number of bearer technologies, including LTE, NR and their successors. It is anticipated that packet
switched networks (such as LTE, NR and their successors), which now co-exist with circuit switched
networks (like GSM/UMTS), will, over the course of time, replace circuit switched networks.
EN 17184 provides High Level Application Protocols (HLAP) for eCall using IMS over packet switched
networks. It provides the equivalent of EN 16062 for circuit switched networks and should be suitable
for all/any packet switched networks and wireless access such as LTE, NR and their successors.
During at least a couple of years, packet switched networks will not be available throughout the working
area of eCall. In other areas both circuit switched and packet switched networks will co-exist, but there
will be areas that only have packet switched network services. This document specifies the protocols in
this hybrid situation, in order to make sure that pan-European eCall will function as efficiently as possible.
NOTE A (possibly) large number of vehicles support circuit switched in-band eCall only (and not eCall using
IMS over packet switched networks). For these to be able to continue using the eCall service either the onboard
equipment will need to be upgraded (to support eCall using IMS) or sufficient circuit switched networks need to
remain operational. This falls outside the scope of this document and is not addressed herein.
The European Committee for Standardization (CEN) draws attention to the fact that, while no direct
patents are known in express regard to the content of these specifications, the underlying ETSI
communications Standards may involve patents and the reader is directed to the referenced ETSI
standards in these respects. Similarly, as this standard relies on EN 16062 and EN 17184 the
specifications below may involve the use of patents specified in these standards, and the reader is
directed to these documents in respect of these aspects.
1 Scope
In respect of 112-eCall (pan-European eCall) (operating requirements defined in EN 16072), this
document defines the additional high level application protocols, procedures and
...