The test suites AtsNGAP (available at forge.etsi.org/rep/int/5g-core/ngap) covers conformance testing of the Next Generation Application Protocol, while AtsNAS (forge.etsi.org/rep/int/5g-core/nas) addresses the Non-Access Stratum protocol layer.
Their collocation under the shared 5g-core namespace reflects their complementary roles in 5G Core network testing.
This shared repository grouping facilitates coordinated development and version alignment between the two test suites, as both protocols are tightly coupled in end-to-end 5G call flows.
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The ATS for NGAP and NAS protocols were initially developed in separate repositories. As the implementation evolved, a significant number of common TTCN-3 templates, functions and supporting modules were identified across both test suites. To avoid duplication, simplify maintenance and ensure consistent evolution of the code base, the NGAP and NAS test suites were consolidated into a single repository.
The active development repository is the ATS NAS repository (forge.etsi.org/rep/int/5g-core/nas), which contains both NAS and NGAP conformance test packages together with their common libraries and supporting code.
The ATS NGAP repository (forge.etsi.org/rep/int/5g-core/ngap) is retained for historical reference purposes only. Users looking for the latest NGAP and NAS test suites should use the ATS NAS repository, where all future development and maintenance activities are performed.
