I think It’s not straightforward to determine the optimal RAN topology and associated operation model.
There are different parameters will contribute at take a decision like:
- Existing network footprint.
- RF Strategy.
- Operating costs.
- Device capabilities.
- Usage Patterns.
The Transport Network is very important as it connects between NG-RAN functional modules and therefore determines which deployment topologies are possible which more cost effective.
The Primary Functional Elements of 5G RAN:
- RU: Radio Unit.
- DU: Distributed Unit.
- CU: Central Unit.
So based on 5G Use Case, the RAN technology decision will be taken, for example for latency sensitive application, the operator will may have to deploy the CU/DU at the cell site to meet latency requirements and availability targets of the end-user service.
Conclusion:
The 5G RAN architecture is therefore dependent on RAN design, the transport network and end-user service.
For 5G RAN TRAINING Contents and to Apply from HERE