I have been doing a lot of research on 5G and I have bad news for you guys. In the recent months/years everyone has been hyping 5G, claiming how fast and revolutionary it will be. The latency is crazy low and its deployment might render fiber to the home worthless. I do not dispute these claims since they all hold true. However, in my opinion, we are still (many) years away from enjoying what it offers.
5G deployment will require the use of high frequency bands to deliver data. This frequency ranges from 30 to 300GHz (4G uses 2-8GHz on 5-20MHz passband bandwidth). If you have done some engineering or physics you do understand that very high frequency has one major weakness- it is easily blocked by anything. At the stated deployment frequency of 5G, it will be blocked even by rain . Also, 5G, unlike 4G or lower technologies, will transmit its signal as a concentrated beam directly to your device rather than all directions.
Due to its inability to penetrate buildings well like 4G, carriers will be required to deploy more masts to cover large areas (you also know that very high frequency has less distance coverage… wavelength). In many areas, 5G will be a very expensive investment for telcos to deploy.
In my opinion, we are still very many years away to experiencing 1 ms or less latency and over 500MB/s speeds. 4G is here to stay, sorry guys . However, FTTH might be somehow replaced… since one will need to fix his or her router at specific place where 5G can reach it. Sorry for the long post…I know many of you are aware of this but, lets help others who arent in the know. Hope this topic survives till the deployment of 5G in Kenya, and I will look back and see how uninformed I was “back then” .