You can see all the presentations from IET event 'Towards 5G Mobile Technology – Vision to Reality' here.
Eiko Seidel recently also wrote an update from 3GPP 5G Adhoc regarding RAN Internal Functional Split. You can read that report here.
- 5G New Radio (NR), Architecture options and migration from LTE
- 5G Fronthaul: Crosshaul & XHaul
- Some more thoughts on 5G
- Verizon's 5G Standard