Hi Experts.
Does anyone suggest good reading on V2X?
Try Google Scholar.
Try here:
4G and 5G V2X architecture
Below is a summary of C-V2X 3GPP releases :
C-V2X has been standardized since release 14 that included numerous LTE-V2X functions including the required architecture, support, procedures and security.
Release 15, released in 2018, saw more enhancements to LTE-V2X. This included introduction of 64QAM (64 Quadrature Amplitude Modulation) compatibility as well as vehicle to vehicle Sidelink improvements.
Release 16 in 2019 saw the introduction of NR-V2X, (New Radio V2X) allowing V2X services access to the 5GS (5G System). This included not only key support for autonomous vehicles, but also the delivery of media services to vehicles.
After that, Release 17 added additional NR-V2X features enhancing the V2X application layer support and Sidelink operation, as well as support for additional use-cases.
Finally 3GPP Release 18 includes various study items that are designed to further enhance and evolve NR-V2X, including V2X application layer services
You can see in the picture the global architecture for both 4G and 5G V2X:
For 5G this is a good explanation: 5G V2X (Vehicle-to-Everything) Concept
And/or do a search here in the forum, there are good discussions:
This one seems a good reading for the subject: https://p-nt-www-amazon-com-br-kalias.amazon.com.br/Cellular-Vehicle-Everything-C-V2x-Shanzhi/dp/9811951292. You can find it on the Internet also.