ETSI TS 102 636-4-3 V1.1.1 (2020-08)

ETSI TS 102 636-4-3 V1.1.1 (2020-08)






TECHNICAL SPECIFICATION
Intelligent Transport Systems (ITS);
Vehicular Communications;
GeoNetworking;
Part 4: Geographical addressing and forwarding for
point-to-point and point-to-multipoint communications;
Sub-part 3: Media-dependent functionalities for LTE-V2X

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2 ETSI TS 102 636-4-3 V1.1.1 (2020-08)



Reference
DTS/ITS-00364
Keywords
addressing, ITS, network, point-to-multipoint,
point-to-point, protocol
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3 ETSI TS 102 636-4-3 V1.1.1 (2020-08)
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 . 6
3.1 Terms . 6
3.2 Symbols . 6
3.3 Abbreviations . 6
4 Overview . 6
5 Addressing, data structure extensions and field settings for LTE-V2X . 7
5.1 General . 7
5.2 GeoNetworking address . 7
5.3 Field settings in the GeoNetworking header . 7
5.3.1 General . 7
5.3.2 Field settings in the Common Header . 7
5.3.3 Field settings in the Extended Header of the SHB packet . 8
5.3.4 Timing synchronization extension . 9
6 Processing on Receive and Transmit . 9
6.1 Processing on transmit . 9
6.2 Processing on receive . 10
7 Security and Privacy considerations . 10
8 Forwarding algorithms . 10
Annex A (normative): GeoNetworking protocol constants for LTE-V2X . 11
Annex B (informative): Extensions of the GeoNetworking MIB . 12
History . 13

ETSI

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4 ETSI TS 102 636-4-3 V1.1.1 (2020-08)
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 is part 4, sub-part 3 of a multi-part deliverable. Full details of the entire series can be found in
part 1 [i.1].
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 GeoNetworking protocol is a network protocol that provides packet routing in an ad hoc network. It makes use of
geographical positions for packet transport. GeoNetworking supports the communication among individual ITS-Ss as
well as the distribution of packets in geographical areas.
GeoNetworking can be executed over different ITS access technologies for short-range wireless technologies, such as
ITS-G5 or LTE-V2X. In order to reuse the GeoNetworking protocol specification for multiple ITS access technologies,
the specification is separated into media-independent and media-dependent functionalities. Media-independent
GeoNetworking functionalities are those which are common to all ITS access technologies for short-range wireless
communication and are specified in ETSI EN 302 636-4-1 [1]. The present document specifies media-dependent
functionalities for GeoNetworking when using the ITS access technology LTE-V2X [2]. The specification in the
present document should be regarded as LTE-V2X specific extensions of the GeoNetworking protocol specified in
ETSI EN 302 636-4-1 [1] and does not represent a distinct protocol entity.
ETSI

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5 ETSI TS 102 636-4-3 V1.1.1 (2020-08)
1 Scope
The present document specifies the media-dependent functionalities for GeoNetworking [1] over LTE-V2X [2] as a
network protocol for ad hoc routing in vehicular environments.
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 302 636-4-1 (V1.4.1): "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".
[2] ETSI EN 303 613 (V1.1.1): "Intelligent Transport Systems (ITS); LTE-V2X Access layer
specification for Intelligent Transport Systems operating in the 5 GHz frequency band".
[3] ETSI TS 136 323 (V14.5.0): "LTE; Evolved Universal Terrestrial Radio Access (E-UTRA);
Packet Data Convergence Protocol (PDCP) specification (3GPP TS 36.323 version 14.5.0
Release 14)".
[4] ETSI TS 124 386 (V14.0.0): "LTE; User Equipment (UE) to V2X control function; protocol
aspects; Stage 3 (3GPP TS 24.386 version 14.0.0 Release 14)".
[5] ETSI TS 136 321: "LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access
Control (MAC) protocol specification (3GPP TS 36.321 Release 14)".
[6] ETSI TS 136 300 (V14.12.0): "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 14.12.0 Release 14)".
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 EN 302 636-1 (V1.2.1): "Intelligent Transport Systems (ITS); Vehicular Communications;
GeoNetworking; Part 1: Requirements".
[i.2] ETSI TS 103 574 (V1.1.1): "Intelligent Transport Systems (ITS); Congestion Control Mechanisms
for C-V2X PC5 interface; Access layer part".
ETSI

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6 ETSI TS 102 636-4-3 V1.1.1 (2020-08)
[i.3] ETSI TS 102 723-8 (V1.1.1): "Intelligent Transport Systems (ITS); OSI cross-layer topics; Part 8:
Interface between
...