F1 setup & reset
Verify DU availability, setup, reset and recovery paths against the CU control plane.
5G RAN / distributed unit
gNB DU Testing for reliable distributed RAN delivery.
Assure the F1 interface, resource coordination and lower-layer RAN procedures that enable consistent 5G service at the edge.
Explore gNB DU scenarios →Assurance coverage
Test the procedures that make a disaggregated RAN work.
Run focused DU validation with repeatable F1 signalling scenarios and exact procedure-level assertions.
Context management
Test setup, modification and release coordination for UE contexts and associated radio resources.
Resource coordination
Qualify expected resource and bearer procedures as configuration or software changes are introduced.
Supported 3GPP standards
gNB DU standards coverage.
Test distributed RAN signalling against the 3GPP architecture and F1 interface specifications.
NG-RAN architecture
Functional split and architecture for gNB-CU and gNB-DU.
F1 general aspects
F1 interface principles and general protocol requirements.
F1AP
F1 Application Protocol procedure and message requirements.
Release-ready evidence
Make DU interoperability measurable.
Replace uncertain integration cycles with readable procedure outcomes shared across RAN and core teams.
F1AP message assertions
Inspect required IEs, procedure outcomes and error handling for every test execution.
CU–DU workflow coverage
Validate distributed RAN behavior within complete, multi-function access scenarios.
gNB DU assurance
Release distributed RAN changes with clarity.
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