This Annex presents examples how RSU can be implemented. With reference to the architectural reference models defined in clause 4.2, the RSU can receive V2X messages via SGi, PC5 or LTE-Uu interface depending on implementation option. Figure A-1 shows a UE-type RSU, which combines a UE with the V2X application logic.

Figure A-2 shows one example of eNB-type RSUs. In this example, the RSU comprises an eNB, a collocated L-GW, and a V2X Application Server.