1. CTI/MTS collaboration - 3GPP TF160
Olivier Genoud (ETSI)
MTS#77

2. TF160 in a nutshell 3GPP Task Force 160 setup in June 2000.
Supporting & under responsibility of 3GPP RAN WG5 (RAN5): Mobile Terminal Conformance Testing.
Translates the 3GPP conformance test cases from prose (test specification) into a reference implementation.
Implementation done using TTCN-2 for 3G (up to Release 9),
Implementation done using TTCN-3 for 3G (from Release 10) and 4G.
Develops and maintains a set of 25 TTCN-2 & 20 TTCN-3 test suites (over 4000 test cases).
Latest news:
5G project:
started mid-2017, ramping up rapidly,
5G test cases implemented in TTCN-3,
first 5G test cases executed on test platforms and passing against real 5G devices,
expected to be a long-term project.
Baseline: will need to be partly upgraded for Standalone NR/5GC (NAS changes).

3. TF160 usage of MTS ‘outputs’
TTCN-3 Standard:
Used formally by TF160 since 2008.
Current usage of standardized mappings for language imports:
ASN.1, XML.
TTCN-3 Tool Vendors:
Strong support, currently 3GPP TTCN-3 test suites analysed by TF160 against 5 different TTCN-3 tools.
Return on experience:
TTCN-3 standard (and tools) very stable.
Occasional Change Requests raised.
Main area where issues are currently found: XML mapping & handling by tools.
Baseline: will need to be partly upgraded for Standalone NR/5GC (NAS changes).

4. To continue: TF160 expectations on MTS
the maintenance and evolution of the TTCN-3 standard.
Change Requests resolution.
the maintenance and extension of conformance tests for TTCN-3 tools:
With special focus on XML conformance.
Baseline: will need to be partly upgraded for Standalone NR/5GC (NAS changes).