In NSA EN-DC, can 4G and 5G parts be in the same site or not?
Yes possible colocated sector, but Baseband and RF module to be different.
So, in one BBU:
(1 * 4G-RF + 1 * 5G-RF), (1 * 4G-baseband_board + 1 * 5G-baseband_board), 1 common control board?
When 4G/5G is deployed in the same BBU:
1)The BBU can be a BBU5900 or a BBU3910. If the BBU3910 is used, the specifications of the reused BBU3910 supporting NR must be met.
2) LTE and NR can use the separate-MPT or co-MPT.
Main control boards:UMPTe/UMPTg
Baseband processing unit:UBBPg