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ETSI TS 102 792-2015 Intelligent Transport Systems (ITS) Mitigation techniques to avoid interference between European CEN Dedicated Short Range Communication (CEN DSRC) equipment a.pdf

1、 ETSI TS 102 792 V1.2.1 (2015-06) Intelligent Transport Systems (ITS); Mitigation techniques to avoid interference between European CEN Dedicated Short Range Communication (CEN DSRC) equipment and Intelligent Transport Systems (ITS) operating in the 5 GHz frequency range TECHNICAL SPECIFICATION ETSI

2、 ETSI TS 102 792 V1.2.1 (2015-06)2 Reference RTS/ITS-00438 Keywords DSRC, ITS, radio, RTTT ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfectur

3、e de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be mod

4、ified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.

5、Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your c

6、omment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI

7、. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo a

8、re Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 102 792 V1.2.1 (2

9、015-06)3 Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g3Introduction 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Definitions, symbols and abbreviations . 6g33.1 Definition . 6g33.2 Symbols 7g33.3 Abbreviations . 7g34

10、General overview . 8g34.1 Introduction 8g34.2 Field strength thresholds for coexistence . 10g34.3 ITS output power thresholds for coexistence . 10g34.4 Duty cycle limits 10g34.5 Procedures 10g35 Interference mitigation mechanisms. 11g35.1 Introduction and basic requirements. 11g35.2 Protected zone 1

11、1g35.2.1 Protected zone definition 11g35.2.2 Protected zone centre position 11g35.2.2.1 Protected zone centre position overview . 11g35.2.2.2 Temporary protected zone centre positions . 12g35.2.2.3 Protected zone centre position list . 12g35.2.3 Protected zone radius 12g35.2.4 Protected zone databas

12、e 13g35.2.5 Short range protected zone radio detection . 14g35.3 Normal mode 14g35.4 Coexistence mode. 14g35.5 Procedures 15g35.5.1 Mobile and personal ITS stations . 15g35.5.2 Fixed ITS stations . 16g35.6 Additional requirements . 16g35.6.1 Personal equipment . 16g3Annex A (informative): Calculatio

13、ns and examples 17g3A.1 Idle time Toffas function of the number of interferers 17g3A.2 Implementation example of a mobile ITS station with power level adjustment 18g3Annex B (informative): Recommendations 20g3B.1 Mobile ITS station antenna mounting 20g3Annex C (informative): Bibliography . 21g3Histo

14、ry 23g3ETSI ETSI TS 102 792 V1.2.1 (2015-06)4 Intellectual Property Rights IPRs essential or potentially essential to the present document 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 fo

15、und 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 (http:/ipr.etsi.org). Pursuant to the ETSI IPR Pol

16、icy, 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. Foreword This Tec

17、hnical Specification (TS) has been produced by ETSI Technical Committee Intelligent Transport Systems (ITS). 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 c

18、lause 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 band 5 795 MHz to 5 815 MHz has been harmonized for the use by Transport and Traffic Telematics (TTT)

19、, also called CEN DSRC, by the EC decision 2013/752/EU i.12 and the ECC recommendation ECC/REC/70-03 i.13, which is primarily used for road charging systems in Europe and elsewhere. By issuing the Directive 2004/52/EC i.14 of the European Parliament and of the Council and Commission Decision 2009/75

20、0/EC i.15 the European Union has pointed to TTT to be used for road charging systems in Europe. By issuing ECC/DEC/(08)01 i.2 and ECC/REC/(08)01 i.3 ECC has allocated the band 5 855 MHz to 5 925 MHz to be used for Intelligent Transport Systems (ITS). In addition, the band 5875 MHZ to 5905 MHz has be

21、en harmonized for the use in the EU by the EC decision 2008/671/EC i.2. These documents recommend ITS systems to be designed and to be operated in a way to avoid harmful interference to TTT. The present document specifies necessary measures to avoid such harmful interference. ETSI ETSI TS 102 792 V1

22、.2.1 (2015-06)5 1 Scope Radio transmissions in the ITS-G5A/B/D frequency bands (see ETSI EN 302 571 i.5) interfere with CEN DSRC using the TTT band (see EC Decision 2013/752/EC i.12) when equipment from both systems are close to each other. This was shown in ECC Report 101 i.1, ECC Report 228 i.8, E

23、TSI TR 102 960 i.7 and ETSI TR 102 654 i.6. The present document specifies requirements to ensure coexistence between ITS stations using the frequency bands ITS-G5A/B/D and CEN DSRC using the TTT band. It is intended to be used as a basis for product development and for development of suitable testi

24、ng procedures to prove conformance to regulations. 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, t

25、he latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of p

26、ublication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. 1 ETSI EN 302 637-2: “Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set of Applications; Part 2: Specification of Cooperati

27、ve Awareness Basic Service“. 2 ETSI TS 102 894-2 (V1.2.1) (2014-09): “Intelligent Transport Systems (ITS); Users and applications requirements; Part 2: Applications and facilities layer common data dictionary“. 3 CEN EN 12253: “Road transport and traffic telematics - Dedicated short-range communicat

28、ion - Physical layer using microwave at 5,8 GHz“. 4 CEN EN 12795: “Road transport and traffic telematics - Dedicated Short Range, Communication (DSRC) - DSRC data link layer: medium access and logical link control“. 5 ETSI ES 200 674-1 (V2.4.1): “Intelligent Transport Systems (ITS); Road Transport a

29、nd Traffic Telematics (RTTT); Dedicated Short Range Communications (DSRC); Part 1: Technical characteristics and test methods for High Data Rate (HDR) data transmission equipment operating in the 5,8 GHz Industrial, Scientific and Medical (ISM) band“. 2.2 Informative references References are either

30、 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 reference document (including any amendments) applies. NOTE: While any hyperlinks inc

31、luded 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 ECC Report 101: “Compati

32、bility studies in the band 5855- 5925 MHz between Intelligent Transport Systems (ITS) and other systems“. i.2 ECC/DEC/(08)01: “ECC Decision of 14 March 2008 on the harmonised use of the 5875-5925 MHz frequency band for Intelligent Transport Systems (ITS) (2008/671/EC)“. ETSI ETSI TS 102 792 V1.2.1 (

33、2015-06)6 i.3 ECC/REC/(08)01: “Use of the band 5855-5875 MHz for intelligent transport systems (ITS)“. i.4 ETSI EN 300 674 (parts 1, 2-1 and 2-2): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Road Transport and Traffic Telematics (RTTT); Dedicated Short Range Communication (DSRC)

34、 transmission equipment (500 kbit/s / 250 kbit/s) operating in the 5,8 GHz Industrial, Scientific and Medical (ISM) band“. i.5 ETSI EN 302 571: “Intelligent Transport Systems (ITS); Radiocommunications equipment operating in the 5 855 MHz to 5 925 MHz frequency band; Harmonized EN covering the essen

35、tial requirements of article 3.2 of the R Road Transport and Traffic Telematics (RTTT); Co-location and Co-existence Considerations regarding Dedicated Short Range Communication (DSRC) transmission equipment and Intelligent Transport Systems (ITS) operating in the 5 GHz frequency range and other pot

36、ential sources of interference“. i.7 ETSI TR 102 960: “Intelligent Transport Systems (ITS); Mitigation techniques to avoid interference between European CEN Dedicated Short Range Communication (RTTT DSRC) equipment and Intelligent Transport Systems (ITS) operating in the 5 GHz frequency range; Evalu

37、ation of mitigation methods and techniques“. i.8 ECC Report 228: “Compatibility studies between intelligent transport systems (ITS) in the band 5855- 5925 MHz and other systems in adjacent bands“. i.9 ETSI EN 302 637-3: “Intelligent Transport Systems (ITS); Vehicular Communications; Basic Set of App

38、lications; Part 3: Specifications of Decentralized Environmental Notification Basic Service“. i.10 ETSI TS 101 539-1: “ Intelligent Transport Systems (ITS); V2X Applications; Part 1: Road Hazard Signalling (RHS) application requirements specification“. i.11 ETSI TS 101 539-3: “Intelligent Transport

39、Systems (ITS); V2X Applications; Part 3: Longitudinal Collision Risk Warning (LCRW) application requirements specification“. i.12 EC Decision 2013/752/EC: “COMMISSION IMPLEMENTING DECISION of 11 December 2013 amending Decision 2006/771/EC on harmonisation of the radio spectrum for use by short-range

40、 devices and repealing Decision 2005/928/EC“; Band No. 62. i.13 ECC Recommendation ECC/REC/70-03:Relating to the Use of Short Range Devices (SRD), Troms 1997, amended February 2014. i.14 Directive 2004/52/EC: “Directive of the European Parliament and of the Council of 29 April 2004 on the interopera

41、bility of electronic road toll systems in the Community“. i.15 2009/750/EC: “Commission Decision of 6 October 2009 on the definition of the European Electronic Toll Service and its technical elements“. i.16 EC Decision 2008/671/EC;“COMMISSION DECISION of 5 August 2008 on the harmonised use of radio

42、spectrum in the 5 875-5 905 MHz frequency band for safety-related applications of Intelligent Transport Systems (ITS)“. i.17 ETSI EN 302 636-4-1: “Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking; Part 4: Geographical addressing and forwarding for point-to-point and point

43、-to-multipoint communications; Sub-part 1: Media-Independent Functionality“. 3 Definitions, symbols and abbreviations 3.1 Definition For the purposes of the present document, the following terms and definitions apply: CEN DSRC: dedicated short range communication as specified in CEN EN 12253 3, CEN

44、EN 12795 4 and ETSI EN 300 674 i.4 ETSI ETSI TS 102 792 V1.2.1 (2015-06)7 coexistence mode: operational mode of an ITS station that avoids harmful interference to CEN DSRC installations default ITS radio parameters: ITS transmit power level of 23 dBm EIRP and unwanted ITS emissions in the frequency

45、range from 5 795 MHz to 5 815 MHz not exceeding -33 dBm/MHz EIRP default protected zone radius: protected zone radius for ITS stations with default ITS radio parameters, it is either stored in the protected zone database, or it can be received in a CAM from a roadside ITS station ITS station: statio

46、n transmitting in the frequency bands ITS-G5A, ITS-G5B or ITS-G5D NOTE 1: This definition is more restrictive than in other related documents. NOTE 2: ITS-G5A, ITS-G5B and ITS-G5D are defined in ETSI EN 302 571 i.5. mitigation mechanism: set of rules that an ITS station applies to operate in coexist

47、ence mode protected zone: circular area defined by its centre and radius where mitigation mechanisms are be applied official protected zone database: database published by an international consortium of toll operators, which contains the positions and protected zone radii of tolling installations ve

48、hicle station type: station types with value range from 3 to 11 NOTE: See ETSI TS 102 894-2 2. 3.2 Symbols For the purposes of the present document, the following symbols apply: d distance d0 reference distance for path loss model (1 m) Lant antenna loss due to polarization or windscreen N number of

49、 interfering ITS stations NITSnumber of ITS stations within the protected zone radius n path loss coefficient PL free space path loss PL0free space path loss in 1 m distance PRxreceive power level PTxtransmit power level PTXmaxmaximum transmit power level fading loss for path loss model Toff Minimum time between two transmissions Toff(C) Minimum time between two transmissions in coexistence mode C Toff(D) Minimum time between two transmissions in coexistence mode D Ton Maximum length of a trans

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