OpenRAN Releases Small Cell End-to-End Test Plan, Version 2 to Support Open RAN Deployment Readiness
- Telecom Infra Project
- 5 hours ago
- 3 min read
The Telecom Infra Project’s OpenRAN Solutions subgroup has released Small Cell End-to-End Test Plan, Version 2, an updated framework designed to support the validation of disaggregated 5G NR small cell solutions.
As Open RAN continues to move from integration into deployment, consistent testing becomes increasingly important. Operators, vendors, system integrators, and labs need a shared way to assess whether multi-vendor small cell systems can perform reliably in realistic conditions. This test plan helps provide that structure.
The updated plan defines a comprehensive framework for testing Open RAN small cell systems, from individual Open Radio Units (O-RUs) through to full end-to-end network performance. It is intended to help the ecosystem verify interoperability, performance, energy efficiency, operational readiness, and resiliency in controlled lab environments.
Why this matters
Small cells play an important role in expanding 5G capacity and coverage, particularly in dense urban environments, enterprise settings, venues, and other high-demand deployment scenarios. For Open RAN small cells to scale effectively, the industry needs confidence that disaggregated components can be integrated, tested, and validated against common expectations.
The Small Cell End-to-End Test Plan supports that goal by establishing a repeatable methodology for assessing small cell systems. The plan includes standardized procedures, defined success criteria, baseline configuration parameters, and guidance for capturing results across different labs and vendors.
It also supports TIP’s Silver Badge badging program by helping ensure that solutions are tested against consistent requirements in a controlled environment before progressing toward deployment readiness.
What the test plan covers
Version 2 covers the end-to-end small cell architecture, including the O-RU, Aggregation Unit, O-DU/O-CU components, and integrated system performance. The plan includes laboratory test scenarios for disaggregated 5G NR small cell systems using O-RAN open interfaces, including 7.2x fronthaul split.
The test categories include:
Hardware verification
RF performance
Throughput and latency
Synchronization
Mobility and radio protocol functionality
Operations and maintenance
Energy efficiency
Fault recovery and resiliency
Each test category is expanded into detailed test cases with procedures and success criteria. The results are intended to be captured in a test report for TIP Silver Badge review.
Supporting repeatable, comparable testing
One of the key objectives of the test plan is reproducibility. The document establishes a common set of baseline, or “golden,” configuration parameters to help ensure testing can be performed consistently across labs, vendors, and solutions.
The plan also outlines expectations for the test architecture and lab environment, including the use of BBUs, O-RUs, optional Aggregation Units, 5G Core connectivity, synchronization sources, RF test equipment, traffic generation tools, protocol analyzers, programmable attenuators, and power measurement tools.
By aligning on test conditions, measurement methods, and reporting expectations, the industry can reduce ambiguity, improve comparability of results, and identify integration issues earlier in the validation process.
Advancing Open RAN through ecosystem collaboration
This release reflects TIP’s role in bringing operators, technology suppliers, integrators, and labs together to solve practical deployment challenges. Open RAN success depends not only on open interfaces, but also on the shared validation frameworks needed to make multi-vendor deployments repeatable and trusted.
Version 2 of the Small Cell End-to-End Test Plan was developed by contributors from Digital Catapult and ITRI, with review from representatives across TIP, NIST, AT&T, Vodafone, VIAVI Solutions, 1Finity, and Tejas Networks.
Through this work, the OpenRAN Solutions subgroup continues to help reduce integration risk, strengthen confidence in Open RAN small cell solutions, and support the industry’s path toward deployment-ready innovation.
Download the Small Cell End-to-End Test Plan, Version 2: