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TECHNICAL SPECIFICATION
LTE;
User Equipment (UE) to V2X control function;
protocol aspects;
Stage 3
(3GPP TS 24.386 version 15.2.0 Release 15)
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3GPP TS 24.386 version 15.2.0 Release 15 1 ETSI TS 124 386 V15.2.0 (2019-03)
Reference
RTS/TSGC-0124386vf20
Keywords
LTE
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3GPP TS 24.386 version 15.2.0 Release 15 2 ETSI TS 124 386 V15.2.0 (2019-03)
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
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Foreword
This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP).
The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or
GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
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.
ETSI
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3GPP TS 24.386 version 15.2.0 Release 15 3 ETSI TS 124 386 V15.2.0 (2019-03)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 General . 8
4.1 Overview . 8
5 Provisioning of parameters for V2X configuration . 8
5.1 General . 8
5.2 Configuration and precedence of V2X configuration parameters . 8
5.2.1 General . 8
5.2.2 Precedence of the V2X configuration parameters . 9
5.2.3 Configuration parameters for V2X provisioning . 9
5.2.4 Configuration parameters for V2X communication over PC5 . 9
5.2.5 Configuration parameters for V2X communication over LTE-Uu . 10
5.3 Procedures . 11
5.3.1 General . 11
5.3.2 V2X control function discovery procedure . 12
5.3.3 V2X authorization procedure . 12
5.3.3.1 General . 12
5.3.3.2 V2X authorization procedure initiation . 13
5.3.3.3 V2X authorization procedure successful . 13
5.3.3.4 V2X authorization procedure not successful . 13
5.3.4 V2X authorization update procedure . 13
5.3.4.1 General . 13
5.3.4.2 V2X authorization update procedure initiation . 13
5.3.4.3 V2X authorization update procedure successful . 14
5.3.4.4 V2X authorization update procedure not successful . 14
6 V2X communication . 14
6.1 V2X communication over PC5 . 14
6.1.1 General . 14
6.1.2 Transmission of V2X communication over PC5 . 14
6.1.2.1 Initiation . 14
6.1.2.2 Transmission . 16
6.1.2.3 Procedure for UE to use provisioned radio resources for V2X communication over PC5 . 17
6.1.2.4 Privacy of V2X transmission over PC5 . 18
6.1.3 Reception of V2X communication over PC5 . 18
6.2 V2X communication over LTE-Uu . 18
6.2.1 General . 18
6.2.2 Transmission of V2X communication over LTE-Uu from UE to V2X application server. 19
6.2.3 Reception of V2X communication over LTE-Uu from UE to V2X application server . 19
6.2.4 Transmission of V2X communication over LTE-Uu from V2X application server to UE. 20
6.2.5 Reception of V2X communication over LTE-Uu from V2X application server to UE . 20
6.2.6 V2X application server discovery . 21
6.2.6.1 General . 21
6.2.6.2 V2X application server discovery using MBMS. 23
6.2.6.2.1 General . 23
6.2.6.2.2 Procedure for V2X application server discovery using MBMS . 23
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3GPP TS 24.386 version 15.2.0 Release 15 4 ETSI TS 124 386 V15.2.0 (2019-03)
7 General message format and information elements coding. 25
7.1 V2X message family encoding . 25
7.2 V2X MBMS configuration . 25
7.2.1 Minimum components of V2X MBMS configuration . 25
7.2.2 Encoding of V2X MBMS configuration SDP . 25
7.2.2.1 Minimum components of V2X MBMS configuration SDP . 25
7.2.2.2 IP multicast address. 25
7.2.2.3 List of UDP port numbers and associated V2X message family . 25
7.2.2.4 Example of V2X MBMS configuration SDP . 26
7.3 V2X AS MBMS configuration . 26
7.3.1 Introduction. 26
7.3.2 Encoding of V2X AS MBMS configuration SDP . 27
7.3.2.1 Minimum components of V2X AS MBMS configuration SDP . 27
7.3.2.2 IP multicast address. 27
7.3.2.3 Port number . 27
7.3.2.4 Example of V2X AS MBMS configuration SDP . 27
7.4 Encoding of V2X local service information . 27
7.4.1 General . 27
7.4.2 application/vnd.3gpp-v2x-local-service-information . 27
7.4.3 Semantics . 28
8 List of system parameters . 28
8.1 General . 28
8.2 Timers of procedures for V2X communication over PC5 . 29
Annex A (informative): Documentation of new MIME types and SDP extensions . 30
A.1 vnd.3gpp.v2x MIME type . 30
A.1.1 vnd.3gpp.v2x MIME type registration . 30
A.1.2 Mapping vnd.3gpp.v2x MIME parameters into SDP . 31
A.2 application/vnd.3gpp-v2x-local-service-information MIME type . 32
A.2.1 application/vnd.3gpp-v2x-local-service-information MIME type registration . 32
Annex B (informative): Change history . 35
History . 36
ETSI
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3GPP TS 24.386 version 15.2.0 Release 15 5 ETSI TS 124 386 V15.2.0 (2019-03)
Foreword
rd
This Technical Report has been produced by the 3 Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
ETSI
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3GPP TS 24.386 version 15.2.0 Release 15 6 ETSI TS 124 386 V15.2.0 (2019-03)
1 Scope
The present document specifies the protocols:
- for V2X authorization between the UE and the V2X control function (over the V3 interface);
- for V2X communication among the UEs (over the PC5 interface); and
- for V2X communication between the UE and the V2X application server (over the LTE-Uu interface).
The present document defines the associated procedures for V2X authorization and V2X communication.
The present document also defines the message format, message contents, error handling and system parameters applied
by the protocols for V2X.
The present document is applicable to:
- the UE;
- the V2X control function; and
- the V2X application server.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 23.285: "Architecture enhancements for V2X services".
[3] 3GPP TS 24.385: "V2X services Management Object (MO)".
[4] 3GPP TS 24.334: "Proximity-services (ProSe) User Equipment (UE) to Proximity-services
(ProSe) Function Protocol aspects; Stage 3".
[5] IEEE 1609.3 2016: "IEEE Standard for Wireless Access in Vehicular Environments (WAVE) --
Networking Services".
[6] ISO 29281-1 2013: "Intelligent transport systems -- Communication access for land mobiles
(CALM) -- Non-IP networking -- Part 1: Fast networking & transport layer protocol (FNTP)".
[7] Void.
[8] 3GPP TS 36.323: "Packet Data Convergence Protocol (PDCP) specification".
[9] 3GPP TS 23.122: "Non-Access-Stratum (NAS) functions related to Mobile Station (MS) in idle
mode".
[10] 3GPP TS 36.304: "Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE)
procedures in idle mode".
[11] 3GPP TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS);
Stage 3".
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3GPP TS 24.386 version 15.2.0 Release 15 7 ETSI TS 124 386 V15.2.0 (2019-03)
[12] 3GPP TS 24.008: "Mobile Radio Interface Layer 3 specification; Core Network Protocols;
Stage 3".
[13] IETF RFC 1035: "DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION".
[14] 3GPP TS 23.003: "Numbering, addressing and identification".
[15] 3GPP TS 29.468: "Group Communication System Enablers for LTE (GCSE_LTE); MB2
Reference Point; Stage 3".
[16] IETF RFC 4566: "SDP: Session Description Protocol".
[17] IETF RFC 2234: "Augmented BNF for Syntax Specification: ABNF".
[18] IETF RFC 768: "User Datagram Protocol".
[19] Void.
[20] 3GPP TS 33.185: "Security aspect for LTE support of V2X services".
[21] 3GPP TS 33.401: "3GPP System Architecture Evolution: Security Architecture".
[22] 3GPP TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource
Control (RRC); Protocol specification".
[23] ETSI EN 302 636-3 v1.2.1: "Intelligent Transport Systems (ITS); Vehicular Communications;
GeoNetworking; Part 3: Network Architecture".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following
apply.
A term defined in the present document takes precedence over the definition of the same term, if any, in
3GPP TR 21.905 [1].
Not served by E-UTRAN for V2X communication: the UE is either:
- outside of E-UTRAN coverage;
- within E-UTRAN coverage but not camped on any cell;
- within E-UTRAN coverage but camped on a non-E-UTRAN cell;
- camped on an E-UTRAN cell not indicating that V2X communication over PC5 is supported by the network; or
- camped on an E-UTRAN cell indicating that V2X communication over PC5 is supported by the network and
providing carrier frequencies and/or radio resources for V2X communication over PC5 which do not belong to
the provisioned carrier frequency that the UE intends to use.
V2X service identifier: an identifier of a V2X service, e.g. PSID or ITS-AIDs of the V2X application.
For the purposes of the present document, the following terms and definitions given in 3GPP TS 23.285 [2] apply:
Intelligent Transport Systems (ITS)
ITS Application Identifier (ITS-AID)
ProSe Per-Packet Reliability (PPPR)
Provider Service Identifier (PSID)
V2X service
For the purposes of the present document, the following terms and definitions given in 3GPP TS 23.003 [14] apply:
TMGI
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3GPP TS 24.386 version 15.2.0 Release 15 8 ETSI TS 124 386 V15.2.0 (2019-03)
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An
abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
3GPP TR 21.905 [1].
PDB Packet Delay Budget
PPPP ProSe Per-Packet Priority
SAI Service Area Identifier
SDP Session Description Protocol
UDP User datagram protocol
V2X Vehicle-to-Everything
4 General
4.1 Overview
The present specification specifies means for transport of V2X messages. V2X messages are generated and consumed
by upper layers of the UE and the V2X application server. V2X messages can contain IP data or non-IP data.
The V2X messages can be transported using:
- V2X communication over PC5; and
- V2X communication over LTE-Uu.
V2X communication over PC5 enables transfer of V2X messages among UEs. For V2X messages containing IP data,
only IPv6 is used. IPv4 is not supported in this release of the specifications.
V2X communication over LTE-Uu enables transfer of V2X messages between a UE and a V2X application server.
V2X messages are carried over LTE-Uu in payload of a UDP/IP packet. A UE using V2X communication over LTE-
Uu:
- can use unicast transport (in uplink, downlink or both of them);
- can use MBMS transport (in downlink only);
- can use transport for uplink which is the same or different to the transport for downlink; and
- can use also MBMS transport for downlink without using any transport for uplink.
The communication security over the V3 interface and LTE-Uu interface is specified in 3GPP TS 33.185 [20]. The
communication security and privacy over the PC5 interface is specified in 3GPP TS 33.185 [20].
NOTE: ProSe charging specified in 3GPP TS 24.334 [4] is expected to be usable for V2X communication over
PC5, although no V2X specific procedures for charging are specified in this release.
5 Provisioning of parameters for V2X configuration
5.1 General
V2X communication is configured by the V2X configuration parameters.
5.2 Configuration and precedence of V2X configuration
parameters
5.2.1 General
The V2X configuration parameters consist of:
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3GPP TS 24.386 version 15.2.0 Release 15 9 ETSI TS 124 386 V15.2.0 (2019-03)
a) configuration parameters for V2X provisioning as specified in subclause 5.2.3;
b) configuration parameters for V2X communication over PC5 as specified in subclause 5.2.4; and
c) configuration parameters for V2X communication over LTE-Uu as specified in subclause 5.2.5.
5.2.2 Precedence of the V2X configuration parameters
The V2X configuration parameters can be:
a) pre-configured in the ME;
b) configured in the USIM;
c) provided by the V2X control function to the ME using procedures specified in subclause 5.3.2, subclause 5.3.3
and subclause 5.3.4; or
d) any combination of the above.
The UE shall use the V2X configuration parameters in the following order of decreasing precedence:
a) the V2X configuration parameters provided by the V2X control function to the ME using procedures specified in
subclause 5.3.2, subclause 5.3.3 and subclause 5.3.4;
b) the V2X configuration parameters configured in the USIM; and
c) the V2X configuration parameters pre-configured in the ME.
5.2.3 Configuration parameters for V2X provisioning
The configuration parameters for V2X provisioning consist of:
a) optionally a V2X control function address. The V2X control function address can be an FQDN or an IP address;
and
b) optionally parameters of a PDN connection for communication with V2X control function.
5.2.4 Configuration parameters for V2X communication over PC5
The configuration parameters for V2X communication over PC5 consist of:
a) an expiration time for the validity of the configuration parameters for V2X communication over PC5;
b) a list of PLMNs in which the UE is authorized to use V2X communication over PC5 when the UE is served by
E-UTRAN for V2X communication;
c) an indication of whether the UE is authorized to use V2X communication over PC5 when the UE is not served
by E-UTRAN for V2X communication;
d) per geographical area:
1) radio parameters for V2X communication over PC5 applicable when the UE is not served by E-UTRAN for
V2X communication and is located in the geographical area, with an indication of whether these radio
parameters are "operator managed" or "non-operator managed";
e) a list of the V2X services authorized for V2X communication over PC5. Each entry of the list contains:
1) a V2X service identifier; and
2) a destination Layer-2 ID;
f) PPPP to PDB mapping rules between the ProSe Per-Packet Priority (PPPP) and the Packet Delay Budget (PDB)
for V2X communication over PC5;
g) optionally, a default destination Layer-2 ID;
h) optionally, a configuration for the applicability of privacy for V2X communication over PC5, containing:
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3GPP TS 24.386 version 15.2.0 Release 15 10 ETSI TS 124 386 V15.2.0 (2019-03)
1) a T5000 timer indicating how often the UE shall change the source Layer-2 ID and source IP address (for IP
data) self-assigned by the UE for V2X communication over PC5; and
2) a list of the V2X services which require privacy for V2X communication over PC5. Each entry in the list
contains:
A) a V2X service identifier; and
B) optionally, one or more associated geographical areas;
i) optionally, V2X service identifier to V2X frequency mapping rules between the V2X service identifiers and the
V2X frequencies with associated geographical areas for V2X communication over PC5; and
j) optionally, a list of the V2X services authorized for ProSe Per-Packet Reliability (PPPR). Each entry of the list
contains a V2X service identifier and a ProSe Per-Packet Reliability (PPPR) value; and
k) optionally, V2X service identifier to Tx Profile mapping rules between the V2X service identifiers and the Tx
Profile for V2X communication over PC5.
5.2.5 Configuration parameters for V2X communication over LTE-Uu
The configuration parameters for V2X communication over LTE-Uu consist of:
a) an expiration time for the validity of the configuration parameters for V2X communication over LTE-Uu;
b) optionally parameters of a PDN connection for V2X communication over LTE-Uu using
...