| Terms of Reference | Name | Version | Status |
| ToR SG1(Wireless) | SG1(Wireless) | TSDSI-SG01-1-[ToR]-V1.0.0-20150928 | Approved |
| ToR SG1-WG1(RNES) | SG1-WG1(RNES) | TSDSI-SG01-1-[ToR]-V1.0.0-20150928 | Approved |
| ToR SG1-WG2(CN) | SG1-WG2(CN) | TSDSI-SG01-1-[ToR]-V1.0.0-20150925 | Approved |
| ToR SG3 (Transport) | SG3 (Transport) | TSDSI-SG03-1-V1.1.0-20151102 | Approved |
| ToR SG5 – Energy Efficiency | SG5 – Energy Efficiency | None | Approved |
| ToR SG4 (Security) | SG4 (Security) | None | Approved |
| ToR SG2 | SG2 | TSDSI-SG02-1-V1.0.0-20161018 | Approved |
| ToR SG1WG3 (5G) | SG1WG3 (5G) | TSDSI-SG1WG3–V1.0.0-20161018 | Approved |
| ToR SG2-WG2 | SG2-WG2 | None | Approved |
| ToR SG2-WG1 | SG2-WG1 | None | Approved |