ITU-T G.8300 PDF

This Recommendation documents the requirements for the layer one transport network for 5G, including hard isolation between aggregated digital clients. The digital clients are the digital streams to/from the 5G entities (e.g., RU, DU, CU, 5GC/NGC) and other digital clients carried in the access, aggregation and core transport networks. The requirements and characteristics are documented for each of the fronthaul, midhaul and backhaul networks as defined in this Recommendation.

The factors addressed include:

• Relationship of 5G network architecture to transport network architecture

• Operations, administration, and maintenance (OAM) requirements

• Timing performance and time/synchronization distribution architecture

• Survivability mechanisms