Five lessons from five years of SONIC Labs

Over the past five years, SONIC Labs played a pivotal role in shaping the UK’s open and intelligent network landscape. It provided vendor-neutral, expert-led testing facility to support the commercialisation and adoption of Open RAN technologies. 

But the programme was more than “just a lab”. It created a collaborative environment, convening stakeholders from across the UK telecoms landscape and generated a depth of insight that goes far beyond technical evaluation.

Here are five essential lessons we’ve learned from SONIC Labs’ journey, which go beyond Open RAN and impact the future of open, AI‑enabled, advanced telecommunications networks.

1. Evidence, not optimism, drives meaningful change

Open RAN has long been surrounded by high expectations: improved diversity, lower costs, increased innovation, and greater resilience. But the SONIC Labs programme has shown that progress only sticks when it is grounded in repeatable, trusted, system‑level evidence.

Across seven cohorts and hundreds of multivendor tests, SONIC Labs demonstrated how Open RAN performs in real‑world conditions: indoors, outdoors, distributed across sites, under load, and at scale. 

Vendors involved in the programme advanced by up to 1–1.5 technology readiness levels per cohort; operators gained transparency and confidence on interoperability and performance; and policymakers gained vital data to support decisions.

Independent, engineering‑led evidence is essential. It’s what transforms open networking from an aspiration into a viable deployment path.

2. Open networks succeed when collaboration is intentional

SONIC Labs did more than test Open RAN technology, it convened a fragmented ecosystem. Operators, vendors, regulators, standards bodies, academia, and international labs contributed to a shared body of knowledge that no single player could have produced alone.

From Strategic Advisory Boards to PlugFests, Communities of Practice, and three formal international MoUs, collaboration was a central pillar to SONIC Labs’ success. This deliberate convening accelerated alignment, lowered barriers to entry, and built trust in ways bilateral trials are simply unable.

Ecosystem coordination was just as important as technological maturity. Open networks will flourish when the industry is brought into the same room with shared purpose and shared evidence.

3. Multivendor integration is difficult

Open RAN promises flexibility and choice, but this could also be seen as increasing complexity. Integrating the components (both hardware and software) from different suppliers involves thousands of parameters, interpretations of standards, and potential points of failure.

SONIC Labs demonstrated how structured, phased, repeatable integration frameworks can turn technological intricacy into tangible progress. Through a cohort‑based model from basic interoperability to mobility, scalability, outdoor field trials and finally certification readiness, the programme reduced integration timelines, improved stability, and uncovered valuable learnings.

Open networks need trusted environments where issues can be shared and solved collaboratively.

4. Effective standards need real-world evidence 

Throughout the programme, SONIC Labs worked with the O‑RAN Alliance to help steer global standards development toward practical deployability. 

Collaborating with international partners, it identified interoperability gaps, such as backward compatibility issues, interface mismatches, and inconsistent interpretations of specifications. As a result, SONIC Labs accelerated the maturity of Open RAN technologies and systems through the development of stronger, evidence-led standards.

Feedback loops established through SONIC Labs’ standards work strengthened global coordination and helped vendors focus their roadmaps and improved operator confidence.

Technological standards evolve fastest when informed by real‑world behaviour, not theoretical design. 

5. Open RAN is a pathway to future networks

Open RAN is not an end state. It’s the foundation for open networks, AI‑native architectures, and the next generation of intelligent connectivity.

SONIC Labs demonstrated this evolution from early fronthaul integration to AI‑enabled RIC applications, energy‑efficiency optimisation, and the development of certification and badging pathways. The programme positioned the UK not only as an Open RAN leader, but as a credible contributor to future, smarter, more autonomous networks.

Open RAN is a stepping stone to AI‑led, software‑driven telecommunications. Its real value is the architectural shift it enables, not the technology alone.

A foundation for the next decade

The five years of SONIC Labs have shown what can be achieved when engineering discipline, national purpose, and collaborative innovation combine. 

The UK now has:

• a globally recognised testing and integration capability
• a pipeline of certification‑ready products
• a maturing multivendor ecosystem
• international partnerships with lasting impact
• trusted evidence that will inform policy, deployment, and future investment

What happens next depends on how these capabilities are sustained and scaled. But the foundations are strong and the UK is now better placed than ever to lead in the era of open, intelligent, and AI‑enabled networks.