**4. Frequency regulations**

Regulation development is required for 5G to operate. Many countries have regulations and standards for the frequency use. Hence, for 5G frequency usage, a country must develop its own regulations and standards. In the USA, according to WIA [15], only 28 states passed legislations for small cell, 3 states introduced, and the rest enacted. Laws and regulations regarding the use of frequencies need time. Hence, many countries were caught unprepared for such shift. On the other hand, countries like South Korea (2019), China, and India (2018) were already deploying the technology.
