1. Wikipedia. High-speed rail in China. https://en.wikipedia.org/wiki/High-speed_rail_in_China 2019. Wikipedia. High-speed rail in China. https://en.wikipedia.org/wiki/High-speed_rail_in_China 2019.
2. Bloomberg. Vehicle-to-Everything Market Communications Ecosystem 2030 Account for a Market Worth $1.2 Billion by 2022. https://www.bloomberg.com/press-releases/2019-09-23/vehicle-to-everything-v2x-market-communications-ecosystem-2030-account-for-a-market-worth-1-2-billion-by-2022 2019. Bloomberg. Vehicle-to-Everything Market Communications Ecosystem 2030 Account for a Market Worth $1.2 Billion by 2022. https://www.bloomberg.com/press-releases/2019-09-23/vehicle-to-everything-v2x-market-communications-ecosystem-2030-account-for-a-market-worth-1-2-billion-by-2022 2019.
3. Orthogonal Time Frequency Space Modulation
4. 3GPP. TS36.331: Radio Resource Control (RRC) Mar. 2015. 3GPP. TS36.331: Radio Resource Control (RRC) Mar. 2015.
5. 3GPP. TS36.331: 5G NR: Radio Resource Control (RRC) Jun. 2019. 3GPP. TS36.331: 5G NR: Radio Resource Control (RRC) Jun. 2019.