Hello, @Leamsi97!
Regarding your first question, the next-generation 5G base station is still 100% effective. However, we will use Massive MIMO and beamforming techniques to send the signal to the end user. You can search for Massive MIMO and beamforming technology for technical details.
As about your second question, products that can provide the use of related technologies are already on the market. You can use Huawei 5G CPE PRO 2 to search.
Thanks!