scope:

This International Standard establishes requirements forshort-range communication for the purposes of augmenting thelocalization in autonomous electronic fee collection (EFC) systems.Localization augmentation serves to inform on-board equipment (OBE)about geographical location and the identification of a chargeobject. This International Standard specifies the provision oflocation and heading information and security means to protect fromthe manipulation of the OBE with false roadside equipment (RSE).The localization augmentation communication takes place between anOBE in a vehicle and fixed roadside equipment. This InternationalStandard is applicable to OBE in an autonomous mode of operation.This International Standard defines attributes and functions forthe purpose of localization augmentation, by making use of thededicated short-range communications (DSRC) communication servicesprovided by DSRC Layer 7, and makes these LAC attributes andfunctions available to the LAC applications at the RSE and the OBE.Attributes and functions are defined on the level of ApplicationData Units (ADUs, see Figure 1). As depicted in Figure 1, thisInternational Standard is applicable to: ? the applicationinterface definition between OBE and RSE; ? the interface to theDSRC application layer, as specified in ISO 15628 and EN 12834; ?the use of the DSRC stack. The localization augmentationcommunication is suitable for a range of short-range communicationmedia. This International Standard gives specific definitionsregarding the CEN DSRC stack as specified in EN 15509, and AnnexesC, D and E give the use of the Italian DSRC as specified in ETSI/ES200 674-1, ISO CALM IR, and ARIB DSRC. This International Standardcontains a protocol implementation conformance statement (PICS)proforma in Annex B and informative transaction examples in AnnexF. The informative Annex G highlights how to use this InternationalStandard for the European electronic toll service (as defined inCommission Decision 2009/750/EC). Test specifications are notwithin the scope of this International Standard.