ISO 17515-1:2015

INTERNATIONAL ISO
STANDARD 17515-1
First edition
2015-09-01
Intelligent transport systems —
Communications access for land
mobiles (CALM) — Evolved Universal
Terrestrial Radio Access Network
(E-UTRAN) —
Part 1:
General usage
Systèmes intelligents de transport — Accès aux communications
des services mobiles terrestres (CALM) — Réseau d’accès à la radio
terrestre universelle évoluée (E-UTRAN) —
Partie 1: D’usage général
Reference number
©
ISO 2015
© ISO 2015, Published in Switzerland
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ii © ISO 2015 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Adoption of other standards and internationally adopted practices .3
6 Communication and management adaptation . 3
6.1 Communication interface . 3
6.2 Communication adaptation . 3
6.2.1 Communication adaptation layer . 3
6.3 Management adaptation . 3
6.3.1 Management adaptation entity . 3
6.3.2 Mapping of E-UTRAN connection states to IS0 21218 CI states . 4
6.3.3 Connection and disconnection procedure . 4
6.4 CI parameters . 5
6.4.1 General. 5
6.4.2 E-UTRAN specific parameters . 5
6.4.3 Communication profile parameters . 5
7 Session establishment and termination procedures . 6
Annex A (informative) E-UTRAN initial access/default bearer establishment .7
Bibliography .10
Foreword
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The committee responsible for this document is ISO/TC 204, Intelligent transport systems.
ISO 17515 consists of the following parts, under the general title Intelligent transport systems —
Communications access for land mobiles (CALM) — Evolved Universal Terrestrial Radio Access Network
(E-UTRAN):
— Part 1: General usage
Additional parts, dealing with direct communications and routing functionalities, are under preparation.
iv © ISO 2015 – All rights reserved

Introduction
This International Standard is a member of the set of International Standards developed under the
acronym “Communications Access for Land Mobiles” (CALM) that refers to ISO/TC 204 work items. An
introduction to this set of International Standards is provided in ISO 21217.
This part of ISO 17515 is part 1 of a multipart standard which determines usage of technology developed
under the acronym E-UTRAN for usage as a communication interface in an ITS station unit.
The term long-term evolution (LTE) is commonly used to refer to the set of standards containing the
E-UTRAN technical specifications. In this part of ISO 17515, the term “E-UTRAN” is used to refer to
these specifications and can be treated as a synonym for “LTE”.
INTERNATIONAL STANDARD ISO 17515-1:2015(E)
Intelligent transport systems — Communications access
for land mobiles (CALM) — Evolved Universal Terrestrial
Radio Access Network (E-UTRAN) —
Part 1:
General usage
1 Scope
This part of ISO 17515 enables usage of the E-UTRAN cellular network technology as an ITS access
technology in an ITS station by specifying details of the “Communication Adaptation Layer” (CAL) and
the “Management Adaptation Entity” (MAE) of communication interfaces specified in ISO 21218, and
session management by reference to ISO 25111.
Wherever practicable, this part of ISO 17515 has been developed by reference to suitable extant
standards, adopted by selection.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 21217:2014, Intelligent transport systems — Communications access for land mobiles (CALM) —
Architecture
ISO 21218:2013, Intelligent transport systems — Communications access for land mobiles (CALM) —
Access technology support
ISO 24102-3:2013, Intelligent transport systems — Communications access for land mobiles (CALM) — ITS
station management — Part 3: Service access points
ISO 25111:2009, Intelligent transport systems — Communications access for land mobiles (CALM) —
General requirements for using public networks
3GPP TS 36.331, Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio
Access (E-UTRA); Radio Resource Control (RRC); Protocol specification (Release 10)
ETSI/TS 102 760-1, Intelligent Transport Systems (ITS); Communications Access for Land Mobiles (CALM);
Test specifications for Access Technology Support (ISO 21218); Part 1: Implementation Conformance
Statement (ICS) proforma
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
I-Parameter
parameter of a CI
[SOURCE: ISO 21218]
3.2
Link-ID
identifier of a link given by the address of a VCI
[SOURCE: ISO 21218]
3.3
MI-COMMAND
command issued by the ITS-S management entity and sent to the ITS-S access layer via the MI-SAP
[SOURCE: ISO 24102-3]
3.4
MI-REQUEST
command issued by the ITS-S access layer and sent to the ITS-S management entity via the MI-SAP
[SOURCE: ISO 24102-3]
4 Abbreviated terms
For the purposes of this document, the following abbreviated terms apply.
3GPP 3rd Generation Partnership Project
CAL Communication Adaptation Layer
(see ISO 21217)
CI Communication Interface
(see ISO 21217)
E-UTRAN Evolved Universal Terrestrial Radio Access Network
IN-SAP Communication SAP as offered by the CAL to the ITS-S networking and transport layer
(see ISO 21218)
ITS-S ITS Station
(see ISO 21217)
LTE Long Term Evolution
MAE Management Adaptation Entity
(see ISO 21217)
MI-SAP Management SAP as offered by the ITS-S management towards the MAE
(see ISO 21218)
UC-VCI VCI for reception from and transmission to a unicast MAC address
(see ISO 21218)
UE User Equipment
2 © ISO 2015 – All rights reserved

5 Adoption of other standards and internationally adopted practices
Equipment and systems complying with this part of ISO 17515 shall operate in the environment of, and
to the parameters defined in the following International Standards:
— ISO 21217:2014, Intelligent transport systems — Communications access for land mobiles (CALM) —
Architecture;
— ISO 21218:2013, Intelligent transport systems — Communications access for land mobiles (CALM) —
Access technology support;
— ISO 24102-3:2013, Intelligent transport systems — Communications access for land mobiles (CALM) —
ITS station management — Part 3: Service access points;
— ISO 25111:2009, Intelligent transport systems — Communications access for land mobiles (CALM) —
General requirements for using public networks;
— 3GPP TS 36.331, Long-Term Evolution of the 3GPP Radio Technology, 3GPP Release 10, and shall operate
within the limits and parameters defined in regional and national regulations.
6 Communication and management adaptation
6.1 Communication interface
The concept of a communication interface (CI) is introduced in ISO 21217 as part of the ITS station
reference architecture. Interfaces, management, behaviour, and parameters of CIs are specified in
ISO 21218, especially the adaptation of a CI access technology
— to the communication service access point IN-SAP, and
— to the management service access point MI-SAP, with reference to ISO 24102-3.
Such adaptation enables a common definition of IN-SAP and MI-SAP service primitives for all kinds
of access technologies. Details of this adaptation functionality dedicated to the access technology
E-UTRAN are specified in 6.2 and 6.3.
6.2 Communication adaptation
6.2.1 Communication adaptation layer
The “Communication Adaptation Layer” (CAL) specified in ISO 21218 provides the IN-SAP towards the
ITS-S networking and transport layer.
An E-UTRAN implementation according to this International Standard shall support UC-VCIs and
the related procedures specified in ISO 21218. The Link-ID shall be constructed as specified in
ISO 21218:2013, 6.3 and C.3.
6.3 Management adaptation
6.3.1 Management adaptation entity
The “Management Adaptation Entity” (MAE) specified in ISO 21218 provides the MI-SAP towards the
ITS-S management entity described in ISO 21217. The MI-SAP services, service primitives and service
primitive functions are specified in ISO 24102-3.
The MI-COMMANDs presented in Table 1 shall be supported:
Table 1 — MI-COMMANDs
&mxref &MXParam Comments
(ISO 24102-3) (ISO 24102-3)
2 CIstateChng Allows the ITS-S management entity to request a change of CI-state.
6 CONcmd Allows the ITS-S management entity to request connection / disconnection
from the E-UTRAN network service.
9 VciCmd Allows the ITS-S management entity to request creation of a UC-VCI,
...