This document provides specifications related to the ITS-S access layer for a communication interface (CI) named "ITS-LTE-V2X".

ITS-LTE-V2X CIs are based on the evolved-universal terrestrial radio access (E-UTRA) vehicle-to- everything (LTE-V2X) technology standardized at 3GPP.

This document enables usage of the LTE-V2X technology as an ITS access technology in an ITS station by reference to respective specifications from 3GPP, and by specifying details of the "Communication Adaptation Layer" (CAL) and the "Management Adaptation Entity" (MAE) of communication interfaces specified in ISO 21218.