ETSI EN 302 637-3: V2X通信与ITS安全应用规范

需积分: 10 128 浏览量更新于2024-07-19 收藏 1016KB PDF 举报

"ETSI EN 302 637-3 V1.2.2 (2014-11)" 是一个欧洲电信标准协会（ETSI）发布的智能交通系统（ITS）车辆通信的基本应用规范，特别是关于分散式环境通知基本服务的标准。这个文档是V2X技术在欧洲的一个重要参考，它涉及到车与车（V2V）、车与基础设施（V2I）之间的通信，旨在提升交通安全和效率。正文：智能交通系统（ITS）是一种利用先进的信息技术、数据通信传输技术、电子传感技术等，实现交通管理、信息服务和车辆控制的高度集成化系统。其目的是提高道路安全，减少交通拥堵，优化交通流，并降低环境污染。 ETSI EN 302 637-3 规范是ITS-G5和C-ITS（Cooperative Intelligent Transport Systems）的一部分，这两个概念是V2X（Vehicle-to-Everything）通信技术在欧洲的核心。V2X允许车辆与其他车辆、基础设施、行人甚至云端进行实时通信，共享关键信息，如速度、位置、交通信号状态等，以支持高级驾驶辅助系统（ADAS）和自动驾驶功能。该标准的“分散式环境通知基本服务”部分主要关注的是车辆如何通过短距离通信（例如DSRC，Dedicated Short Range Communications）来交换环境感知信息。这包括但不限于危险警告、交通流量信息、路面状况报告等。这些服务可以提前预警驾驶员潜在的危险情况，如急刹车、前方有障碍物或湿滑路面，从而预防交通事故的发生。 V2X技术自2019年起开始受到广泛关注，这可以从相关文件的下载量增长看出。由于其在提高交通安全和交通效率方面的潜力，V2X正逐渐成为汽车行业的热点。同时，随着价格的降低，V2X技术的普及率有望进一步提高。标准的发布通常伴随着严格的合规性和互操作性要求，以确保不同制造商的产品能在同一网络环境下无缝协作。ETSI的这份标准详细定义了通信协议、数据格式和消息交换流程，为设备制造商提供了开发和测试V2X解决方案的框架。在实际应用中，ETSI EN 302 637-3 V1.2.2可能会被车辆制造商、通信设备供应商、交通管理部门和软件开发商等广泛引用，以确保他们的产品和服务符合欧洲市场的要求。用户应遵循ETSI的规定，仅使用经过授权的版本，以确保内容的准确性和一致性。 ETSI EN 302 637-3 V1.2.2 (2014-11) 是智能交通系统发展中的关键标准，它定义了车辆通信中环境感知服务的标准，对于推动V2X技术在欧洲的广泛应用具有重要意义。随着技术的进步和市场需求的变化，这个标准也将不断更新和完善，以适应未来交通系统的复杂需求。

ETSI

ETSI EN 302 637

3 V1.2.2 (2014

11)

upstream traffic: direction from the event position towards the approaching traffic on the same carriageway

3.2 Symbols

For the purposes of the present document, the following symbols apply:

actionID Identifier of an event that is detected by an ITS-S

appDENM_trigger Application request type to generate a new DENM for a newly detected event

appDENM_update Application request type to generate an update DENM for an update of the event

appDENM_termination Application request type to generate a cancellation or negation DENM for termination

of the event

detectionTime Timestamp at which an event or event update/termination is detected

IF.DEN1 Interface between the DEN basic service and ITS-S applications for DENM

transmission

IF.DEN2 Interface between the DEN basic service and ITS-S applications for DENM reception

IF.Mng Interface between the DEN basic service and the ITS management entity

IF.N&T Interface between the DEN basic service and the ITS networking & transport layer

IF.SEC Interface between the DEN basic service and the ITS security entity

referenceTime Timestamp at which a new, update or cancellation DENM is generated by the DEN

basic service

NOTE: A negation DENM contains the referenceTime of the DENM that is negated.

repetitionDuration Duration of the DENM repetition

repetitionInterval Time interval of the DENM repetition

stationID Identifier of an ITS-S

T_F_Validity Timer that indicates the end of the DENM processing of one specific actionID of the

forwarding ITS-S

T_Forwarding Timer for the scheduling of the DENM forwarding by the forwarding ITS-S

T_O_Validity Timer that indicates the end of the DENM processing of one specific actionID of the

originating ITS-S

T_R_Validity Timer that indicates the end of the DENM processing of one specific actionID of the

receiving ITS-S

T_Repetition Timer for the scheduling of the DENM repetition by the originating ITS-S

T_RepetitionDuration Timer that indicates the end of the DENM repetition

termination Parameter that indicates the termination of an event

transmissionInterval Time interval for DENM transmission

validityDuration Duration of the DENM validity

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in ETSI EN 302 665 [2] and the following apply:

ABS Anti-lock Braking System

AEB Automatic Emergency Braking

API Application Programming Interface

ASN.1 Abstract Syntax Notation One

BSA Basic Set of Applications

BTP Basic Transport Protocol

C2C-CC Car to Car Communication Consortium

CA Cooperative Awareness

DE Data Element

DEN Decentralized Environmental Notification

DENM Decentralized Environmental Notification Message

DF Data Frame

DSRC Dedicated Short Range Communications

EEBL Electronic Emergency Break Light

ESP Electronic Stability Program

FA-SAP Facilities-Application Service Access Point

GN GeoNetworking

HMI Human Machine Interface

ETSI

ETSI EN 302 637

3 V1.2.2 (2014

11)

ISO International Standardization Organization

ITS Intelligent Transport System

ITS-AID ITS-Application IDentifier

ITS-S ITS Station

KAF Keep Alive Forwarding

LDM Local Dynamic Map

LSB Least Significant Bit

MF-SAP Management Facilities Service Access Point

MSB Most Significant Bit

NF-SAP Network Facilities Service Access Point

OSI Open System Interconnection

PCI Protocol Control Information

PDU Protocol Data Unit

PER Packed Encoding Rules

RHW Road Hazard Warning

SAE Society of Automotive Engineers

SF-SAP Security Facilities Service Access Point

SSP Service Specific Permissions

TEC Traffic Event Compact

TISA Traveller Information Services Association

TPEG

Transport Protocol Experts Group

TS Technical Specification

TTI Traffic and Travel Information

VDS Vehicle Descriptor Section

WMI World Manufacturer Identifier

4 DEN basic service introduction

4.1 Background

Decentralized Environmental Notification Message (DENM) is a facilities layer message that is mainly used by ITS

applications in order to alert road users of a detected event using ITS communication technologies. DENM is used to

describe a variety of events that can be detected by ITS stations (ITS-S). A set of ITS applications are specified in

ETSI TS 101 539-1 [i.4], ETSI TS 101 539-2 [i.5], and ETSI TS 101 539-3 [i.6], which includes multiple ITS use cases.

The exchange of DENM among ITS-Ss is operated by DENM protocol.

The general processing procedure of an ITS use case that is supported by the DENM protocol is as follows:

• Upon detection of an event, an ITS-S transmits a DENM in order to disseminate the information about this

event to other ITS-Ss located inside an area of relevance. The ITS-S that transmits DENM is denoted as

originating ITS-S.

• DENM transmission is initiated and terminated by an ITS-S application at the ITS application layer. Examples

are provided in ETSI TS 101 539-1 [i.4], ETSI TS 101 539-2 [i.5] and ETSI TS 101 539-3 [i.6].

• The transmission of a DENM may be repeated.

• DENM transmission may persist as long as the event is present.

• An ITS-S may forward a DENM. This ITS-S is denoted as forwarding ITS-S.

• The termination of DENM transmission is either automatically achieved by the facilities layer, i.e. the DEN

basic service of the originating ITS-S when a predefined expiry time is reached, or by an ITS-S application

that requests the generation of a DENM to inform that the event has terminated.

• An ITS-S, which receives a DENM, processes the information and may decide to present an appropriate

warning or information to user, as long as the information in the received DENM is relevant to the ITS-S. This

ITS-S is denoted as receiving ITS-S.

ETSI

ETSI EN 302 637

3 V1.2.2 (2014

11)

A general inter-layer and inter-ITS-Ss dataflow for DENM exchange is provided in Figure 1.

ITS application layer

Sensors and/or in

vehicle system

ITS-S application

DEN basic service

ITS

networking&transport

ITS access

technologies

Sensor information

Application request, event information

Transmission request, DENM

DEN basic service

ITS

networking&transport

ITS access

technologies

DENM

HMI

ITS-S application

DEN basic service

ITS

networking&transport

ITS access

technologies

Information/warning

Event information

DENM

ITS facilities layer

ITS

networking&transport

layer

ITS access layer

Originating ITS-S Forwarding ITS-S Receiving ITS-S

ITS link ITS link

Figure 1: General data flow for ITS-S application supported by the DEN basic service

The solid lines illustrate the dataflow that is mandatory for all ITS applications using the DENM protocol. The dotted

lines illustrate the dataflow that may apply only in certain situations.

NOTE: A DENM may be forwarded by intermediate ITS-Ss in order to disseminate DENM from the originating

ITS-S to the receiving ITS-S, if the receiving ITS-S is not located in the direct communication range of

the originating ITS-S. This forwarding is realized by the ITS networking & transport layer. In addition,

the DEN basic service may provide forwarding functionality at the facilities layer, in order to maintain the

DENM retransmission in certain situations, for example when the originating ITS-S has lost the capability

to repeat DENM transmission. This optional facilities layer forwarding functionality is illustrated as

dotted lines in Figure 1.

4.2 Services provided by the DEN basic service

The DEN basic service is a facilities layer entity that operates the DENM protocol. It provides services to entities at the

ITS application layer. At the originating ITS-S, an ITS-S application may trigger, update and terminate the transmission

of DENMs. At the receiving ITS-S, the DEN basic service processes received DENMs and makes the information

available for usage in ITS-S applications process. Optionally, the DEN basic service may also provide forwarding

functionality.

The DEN basic service uses the services provided by the protocol entities of the ITS networking & transport layer to

disseminate DENM.

NOTE 1: Typically, for road safety ITS applications as specified in ETSI TS 101 539-1 [i.4], ETSI

TS 101 539-2 [i.5], and ETSI TS 101 539-3 [i.6], the destination of a DENM transmission is ITS-Ss that

are located in a pre-defined geographic area close to the detected event position.

NOTE 2: A DENM may also be disseminated over a long distance or to a central ITS-S, such as for vehicle

rerouting or road traffic management purposes.

ETSI

ETSI EN 302 637

3 V1.2.2 (2014

)

A DENM contains information related to an event that has potential impact on road safety or traffic condition. An event

is characterized by an event type, an event position, a detection time and a time duration. These attributes may change

over space and over time.

In some situations, the originating ITS-S transmits a DENM of an event caused by the ITS-S itself, such as electronic

brake light event. The originating ITS-S manages the transmission and the termination of the DENM for this event.

However, in some other situations, DENMs related to the same event may be transmitted by more than one originating

ITS-Ss. In addition, in case the originating ITS-S is mobile (e.g. vehicle ITS-S or personal ITS-S), an event may persist

even after the originating ITS-S has moved to a position far from the event position. For example, multiple vehicle

ITS-Ss may detect black ice on the road surface and transmit DENMs. These DENMs are relayed by other ITS-Ss even

after the detecting vehicle ITS-Ss have left the black ice location. Therefore, the DENM transmission is independent

from the originating ITS-S in this example. The DENM protocol is designed to manage these situations.

The following DENM types are defined:

• New DENM: A DENM generated by the DEN basic service when an event is detected by an originating ITS-S

for the first time. Each new DENM is assigned with a new identifier, denoted as actionID. A new DENM

provides event attributes, such as event position, event type, event detection time, and other attributes as

defined in clause 7.

• Update DENM: A DENM generated by the DEN basic service that includes update information of an event.

An update DENM is transmitted by the same originating ITS-S, which had generated the new DENM for the

same event.

• Cancellation DENM: A DENM that informs the termination of an event. A cancellation DENM is transmitted

by the same originating ITS-S which has generated the new DENM for the same event.

• Negation DENM: A DENM that informs the termination of an event for which the new DENM has been

received by the originating ITS-S from another ITS-S. A negation DENM may be used to announce the

termination of an event if the originating ITS-S has the capacity to detect the termination of an event which

has been previously announced by other ITS-Ss. As example, the originating ITS-S of a new DENM indicating

black ice has left the event position, some time later, another ITS-S receiving this new DENM reaches the

indicated black ice position and detects that the back ice has disappeared. The latter ITS-S may in this case

generate a negation DENM for this event.

NOTE 3: Whether a negation DENM is transmitted may depend on the application requirements and the

deployment requirement. Therefore, definition of conditions under which the generation and transmission

of negation DENM is allowed is out of scope of the present document.

The DEN basic service of the originating ITS-S shall be able to construct above DENMs types. ITS-S application of the

originating ITS-S sends an application request to the DEN basic service in order to trigger the generation of DENMs.

The type of the DENM to be generated depends on the type of the application request.

Due to the different detection capabilities of ITS-Ss, the quality of the provided information in a DENM may vary.

However, predefined conditions are to be satisfied by an ITS-S in order to initiate and terminate the transmission of

DENMs for a specific event. These conditions are specified as ITS application requirements in ETSI TS 101 539-1 [i.4],

ETSI TS 101 539-2 [i.5] and ETSI TS 101 539-3 [i.6].

5 DEN basic service functional description

5.1 Introduction

The DEN basic service features several functionalities which are specified hereafter. The present clause is organized as

following:

• Clause 5.2 introduces the DEN basic service.

• Clause 5.3 defines functionalities of the DEN basic service.

• Clause 5.4 defines interfaces of the DEN basic service.

剩余72页未读，继续阅读

往事如烟0819

粉丝: 27
资源: 178

ETSI EN 302 637-3: V2X通信与ITS安全应用规范

ETSI EN 300 132-3-1 V2.1.1（2012-02） —300 132-3第一、二部分

ETSI EN 303 447 V1.1.1中文版【经典】.pdf

DVB-S2标准 EN 302 307

etsi en 301 489-1 v2.2.3(2019-11)是什么

etsi tr 101 053-3

etsi en 302 065

ETSI EN 302 217

在进行智能卡终端的SWP接口测试时，如何依据ETSI标准确保测试的全面性和准确性？请结合《ETSI TS 102 694-1: SmartCard Terminal测试规范详解》具体说明。

etsi en 300 2

在设计GNSS导航接收器时，如何确保产品符合欧盟2014/53/EU指令和ETSI EN 303 413 V1.1.1标准的频率带宽要求？

最新资源