#5G New Radio Basics

How about a few facts about 5G New Radio and a dadsjoke as a reward?

5G utilize two ranges of radio frequencies:
— Frequency range 1 (FR1):
+ below 6GHz with better propagation characteristics,
+ used for wide-area communication,
— Frequency range 2 (FR2):
+ above 24Ghz with higher throughput,
+ ideal for hot spots in city centers and buildings.

Bandwidths for the above frequency ranges vary:
— For FR1 they are relatively narrower to achieve good throughput while maintaining flexibility
— For FR2 they are wide and focus on best spectrum usage to achieve high throughput

While transmitting data 5G use:
— OFDM modulation where different frequencies are used for different data streams
— multiple access techniques where:
+ different subcarriers are allocated for different users (OFDMA)
+ those frequencies are allocated for a specific time (TDMA)
+ same frequencies at the same time could be sent to different places (SDMA).
— two-way transmission (duplex) in time and frequency domain so:
+ data could be sent from/to network in different moments in time (TDD),
+ data could be sent from/to the network at different frequencies (FDD).

Since you are still here let me share with you a dads joke:
<joke>
Why was the cell phone wearing glasses?
He lost his contacts!
</joke>