Analysis of Radio Resources Based on 5G New Radio in Sidelink C-V2X

5G New Radio Vehicle-to-everything (5G-V2X) communication is the new generation technology for vehicle communication that relies on 5G architecture. 5G-V2X has been designed to support new advanced services. With the finalization of 3GPP Release 16, NR-V2X has introduced the support for flexible numerologies, agile frame structure, and new procedures for autonomous resource allocation (Mode 2). The following work summarizes the information available on 3GPP sidelink transmissions, describing the physical layer structure, the resource allocation mechanisms, resource sensing and selection procedures, the synchronization, and the newly defined 2-stage control channel (2-stage SCI). Furthermore, the procedure for the determination of the transport block size is presented, crucial for determining the amount of data that can be carried by 5G-V2X subchannels. Finally, an estimation of the throughput for 5G-V2X is obtained, for different configuration of subcarrier spacing, and is compared with the one obtained in LTE-V2X.