# Third Generation Partnership Project
## Release 14
Used in V2V scenarios, also called C-V2X.
Proximity Services (ProSe).
The first trials were in 2017 (see references)
Based on SC-FDMA
Use Release 14 for LTE-V2X and Release 16 for 5G
## Release 16
## Release 17
TSG#95-e (March 2022) saw the completion of the Rel-17 functional freeze.
Some important Rel-17 projects were:
- Sidelink enhancements,
- Reduced capability (Redap) NR devices,
- NR operation extended to 71GHz,
- Further enhancements on MIMO for NR,
- NR over Non terrestrial Networks (NTN),
- IoT over NTN,
- UE power saving enhancements for NR,
- Enhancements to Integrated Access and Backhaul for NR,
- Enhancement of RAN slicing for NR,
- RF requirements enhancement for NR FR1,
- RF requirements for NR FR2,
- Coverage and positioning enhancements,
- NR and slicing QoE,
- Enhanced support of non-public networks,
- Support for uncrewed aerial systems,
- Support for edge computing in 5GC,
- Proximity-based services in 5GS,
- Access traffic steering, switch and splitting (ATSSS),
- Network automation for 5G (Phase 2).
3GPP submit their standards to ETSI who then republish them.
Example: [digital-cellular-telecommunications-system-phase-2-gsm-universal-mobile-telecommunications-system-umts-lte-5g-vocabulary-for-3gpp-specifications-3gpp-tr-21905-version-1710-release-17](../../Sources/Standards/ETSI/digital-cellular-telecommunications-system-phase-2-gsm-universal-mobile-telecommunications-system-umts-lte-5g-vocabulary-for-3gpp-specifications-3gpp-tr-21905-version-1710-release-17.pdf) and [3GPP attachment](../../Sources/Standards/3GPP/3rd-generation-partnership-project-technical-specification-group-services-and-system-aspects-vocabulary-for-3gpp-specifications-release-17.doc)
## Release 18

[3]
# References
1. https://www.etsi.org/committee/1418-3gpp#:~:text=3GPPTM%20is%20a%20partnership,mobile%2C%20cellular%20telecommunications%2C%20UMTS.
2. Continental, “Cellular V2X: Continental Successfully Conducts Field Trials in China.” [Online] Available: https://www.continental-corporation.com/en/press/press-releases/2017-12-18-cellular-v2x-116994
3. https://www.3gpp.org/images/2023/2023-01-23_09_57_05-PowerPoint_Slide_Show_-_Rel_18_timeline_vkf.ppt_-_Compatibility_Mode.png