I always recommended or alerted for 5G aspirant.
1. 5G is about End to End vision
2. Though 5G arhitecture is flat but it is complex and convoluted.
3. For jumping into 5G create your team of consultants.
This is corroborated here below too....
Found a nice read from Ericsson, good to go through.....
5G is expected to deliver unprecedented performance in terms of transmission capacity and packet transit delays, enabling new applications and services in areas as diverse as the Internet of Things, augmented reality and the Industrial Internet. To dynamically define the features supported by the infrastructure and the ways in which these features are managed.