| LS | Title | From | To | Approval date |
| SG11-LS92 | LS on initiation of draft new Technical Report QSTR.SP-RCA “Signalling architecture and protocol procedures for service quality degradation root cause analysis in IMT-2020 network and beyond” | SG11 | JCA-IMT2020/IMT2030; SG2; SG13; | 2025-11-26 |