This International Standard establishes requirements for short-range communication for the purposes
of augmenting the localization in autonomous electronic fee collection (EFC) systems. Localization
augmentation serves to inform on-board equipment (OBE) about geographical location and the
identification of a charge object. This International Standard specifies the provision of location and
heading information and security means to protect from the manipulation of the OBE with false roadside
equipment (RSE).
The localization augmentation communication takes place between an OBE in a vehicle and fixed roadside
equipment. This International Standard is applicable to OBE in an autonomous mode of operation.
This International Standard defines attributes and functions for the purpose of localization augmentation,
by making use of the dedicated short-range communications (DSRC) communication services provided
by DSRC Layer 7, and makes these LAC attributes and functions available to the LAC applications at the
RSE and the OBE. Attributes and functions are defined on the level of Application Data Units (ADUs, see
Figure 1).
As depicted in Figure 1, this International Standard is applicable to:
— the application interface definition between OBE and RSE;
— the interface to the DSRC application layer, as specified in ISO 15628 and EN 12834;
— the use of the DSRC stack.