Enhanced Resource Selection Mechanism for LTE-V2X Sidelink Multi-Carrier Operation

Vehicle-to-everything (V2X) can improve the road safety, the traffic efficiency, and the availability of infotainment services. In order to meet the requirement of higher data rate for Long Term Evolution (LTE)-V2X, the carrier aggregation scheme was introduced in 3GPP Release 15. The enhanced resource selection mechanism for sidelink multi-carrier was studied, to support UEs with limited transmission capability performing multi- carrier operations and to alleviate the half- duplex impact. The system level simulation results show that the half-duplex impact can be suppressed and the proposed mechanisms in this paper can improve the reliability of LTE-V2X sidelink multi- carrier operation.