I need your comments on a basic question related to the CU-DU split.
In the 5G specs, when the CU-DU split was proposed within the gNB. Whether the Physical resource blocks (PRBs) allocated to the gNB in a DU are shared among all DUs of that gNB. Or each DU has its own physical resources?
Secondly, How I can get details of the total number of O-CUs, O-DUs, and O-RUs in a 5G open RAN architecture specification as 3GPP is standardizing these parts?
Thirdly, their resource details i.e. how many DUs one CU can have and what are the DU resources, and how many antennas and their configuration in an RU can have?
I am looking forward to your kind reply.