Blog

Building on the open RAN.

Technical articles on O-RAN applications, network intelligence, and telecom research.

All articles

Research, engineering, and perspectives from EchoNest.

O-RAN engineering

Protecting a slice under congestion with resource ratios set from the RIC

When a mobile cell is congested, a user can receive data at almost the full rate and still wait seconds for it. In our open-source 5G lab, changing how the base station shares radio resources between slices cut a high-priority user’s delay to a few hundred milliseconds, with nothing lost.

Read article

O-RAN engineering

A model that answers with a probability, not a paragraph: what decision models could mean for the RIC

A group of models now returns typed decisions with probabilities instead of text, and open-weight versions can run inside the operator's own cloud. Where the class could fit in the O-RAN control loops, where it does not, and what has to be measured before any of it reaches a live network.

Read article

Measurement intelligence

Not all measurements are worth collecting: information value vs. collection cost in the RAN

Why more MDT data is not always better, how to think about what a measurement is worth, and what an uncertainty-aware collection strategy looks like in practice.

Read article

O-RAN engineering

rApp or xApp? Choosing the right control loop for your use case

A decision guide for placing a RAN use case in the Non-RT RIC, the Near-RT RIC, or both, based on time scale, data, action and cost of being wrong.

Read article

O-RAN engineering

R1, A1, E2, O1: a practical map of who talks to whom in O-RAN

A plain guide to the four O-RAN interfaces an application developer meets first: what each one connects, what travels over it, and how fast it works.

Read article