routinely. 6-100 GHz is really the new band. So, let's explain why this new band is needed. Below 1 GHz is excellent for building penetration with wide area coverage. The coverage is potentially about tens of kilometers depending on the topography. But the problem with operating below 1 GHz is that there is not that much spectrum available for service providers, that is, there is limited spectrum availability. So, what we need to do is start looking higher up in the radio spectrum. 1-6 GHz provides decent coverage, and there is also good spectrum availability. 6-100 GHz is low range and only provides hundreds of meters of coverage, but there is greater amount of spectrum available. However, it is the key enabler for unlocking the stringent data rate requirements. Service providers will be operating in much bigger bands higher up in the licensed Radio Frequency (RF) spectrum, which is essential for providing those data rates. As it has been with technologies that have come before and at the same time as 5G, ITU is responsible for standardization and global harmonization of the RF spectrum. At the World Radio Conference in November 2015, they already started to discuss and define some of the operating bands for 5G, and at the World Radio Conference in October 2019, those bands were set in place. Radio enhancements 5G NR means that the UE needs to be able to support 5G radio, and SO too does the gNB. There are many different tweaks that have been employed in NR protocols. However, only two high-level aspects are going to be examined here. Fundamentally, one of the big changes is the employment of Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) to provide greater deployment flexibility, which adopts variable subcarrier spacing. This helps service providers obtain much more flexibility in terms of what kind of RAN coverage they want to provide. Therefore, CP-OFDM allows them to address whether to deploy a small cell or a very large macro cell while allowing them to be very flexible in terms of the f