EN 12795:2003
(Main)Road transport and traffic telematics - Dedicated Short Range Communication (DSRC) - DSRC data link layer: medium access and logical link control
Road transport and traffic telematics - Dedicated Short Range Communication (DSRC) - DSRC data link layer: medium access and logical link control
This European Standard:
- defines the Data Link Layer of DSRC;
- is positioned with respect to other related standards by the layers defined in OSI Basic Reference Model [EN ISO/IEC 7498-1] as adopted for DSRC;
- supports broadcast and half-duplex transmission modes;
- supports a variety of fixed equipment configurations. It supports configurations where one fixed equipment communicates with one mobile equipment unit, as well as configurations where one fixed equipment can communicate with several mobile equipment units;
- takes into account that the mobile equipment communicates with the fixed equipment while passing through a limited communication zone;
- defines neither any specific configuration nor the layout of the communication zone;
- does not define to what extent different instances of fixed equipment, operating in the vicinity of each other, need to be synchronised with each other;
- defines parameters to be used in negotiation procedures taking place between fixed equipment and mobile equipment.
By defining two distinct sublayers, namely the medium access control sublayer and the logical link control sublayer, this standard defines:
a) medium access control procedures for the shared physical medium;
b) addressing rules and conventions;
c) data flow control procedures;
d) acknowledgement procedures;
e) error control procedures;
f) services provided to application layer.
The MAC sublayer is specific to the DSRC. The LLC services offered are unacknowledged and acknowledged connectionless services based on [ISO/IEC 8802-2].
Télématique de la circulation et du Transport routier - Communication à courte portée - Couche de liaison de contrôle d'accès au média et de contrôle logique de liaison
Cestna transportna in prometna telematika – Posebna komunikacija kratkega dosega (DSRC) – Podatkovna povezovalna plast DSRC: srednji dostop in krmiljenje logične povezave
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.NUDWNHJDTélématique de la circulation et du Transport routier - Communication a courte portée - Couche de liaison de contrôle d'acces au média et de contrôle logique de liaisonRoad transport and traffic telematics - Dedicated Short Range Communication (DSRC) - DSRC data link layer: medium access and logical link control35.240.60Uporabniške rešitve IT v transportu in trgoviniIT applications in transport and trade35.100.20Podatkovni povezovalni slojData link layerICS:Ta slovenski standard je istoveten z:EN 12795:2003SIST EN 12795:2003en01-oktober-2003SIST EN 12795:2003SLOVENSKI
STANDARD
SIST EN 12795:2003
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12795March 2003ICS 35.100.20; 35.240.60Supersedes ENV 12795:1997English versionRoad transport and traffic telematics - Dedicated Short RangeCommunication (DSRC) - DSRC data link layer: medium accessand logical link controlTélématique de la circulation et du Transport routier -Communication à courte portée - Couche de liaison decontrôle d'accès au média et de contrôle logique de liaisonThis European Standard was approved by CEN on 4 December 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12795:2003 ESIST EN 12795:2003
EN 12795:2003 (E)2ContentspageForeword.31Scope.52Normative references.73Terms and definitions.74Abbreviations and variables.85Frame format.106Address establishment.137Medium Access Control (MAC) sublayer.158Logical Link Control sublayer.26Annex A
(normative)
Data link layer parameters.38Annex B
(informative)
Data link layer overhead.39Annex C
(informative)
Evolution of the MAC sequence bit.40Annex D
(informative)
Address establishment.42Annex E
(informative)
A-deviations.47SIST EN 12795:2003
EN 12795:2003 (E)3ForewordThis document (EN 12795:2003) has been prepared by Technical Committee CEN TC 278 “Road Transport andTraffic Telematics”, the secretariat of which is held by NEN.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at
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