The O-RAN Open Fronthaul Interface connects the O-DU to the O-RU.
It is the radio-side interface between distributed baseband processing and the radio unit, based around the O-RAN 7.2x functional split.
Used for
- User-plane IQ data between O-DU and O-RU.
- Control-plane messages for radio operation.
- Synchronization and timing.
- Management-plane access to the O-RU.
Why it matters
Open Fronthaul is one of the most important multi-vendor boundaries in Open RAN because it allows an O-DU and O-RU from different vendors to interoperate when both implement the same profiles and options.
Related
- O-RAN O1 Interface can manage O-RU configuration and lifecycle.
- Open RAN uses Open Fronthaul as the low-level radio interface between O-DU and O-RU.
Anki
id: oran-open-fronthaul-interface deck: Computer Science::Infrastructure::Telco tags: telco oran interface fronthaul
Q: What does the O-RAN Open Fronthaul Interface connect? A: Open Fronthaul connects the O-DU to the O-RU, commonly using the O-RAN 7.2x functional split.