Working group nomenclature, tbid/SubTB identifiers, subgroup hierarchy, and TSG structure. Use when working with 3GPP working groups, parsing meeting codes, or understanding TBID mappings.
3GPP has three main Technical Specification Groups (TSGs), each with multiple Working Groups (WGs) and Sub-Working Groups (SWGs):
Each TSG is responsible for:
Each TSG has a unique tbid identifier used in 3GPP systems:
| TSG | tbid | FTP Root URL |
|---|---|---|
| RAN |
| 373 |
| https://www.3gpp.org/ftp/tsg_ran/ |
| SA | 375 | https://www.3gpp.org/ftp/tsg_sa/ |
| CT | 649 | https://www.3gpp.org/ftp/tsg_ct/ |
Each Working Group within a TSG has a unique SubTB identifier:
| TSG | WG | SubTB | Focus Area |
|---|---|---|---|
| RAN | RAN Plenary | 373 | TSG RAN overview |
| RAN | RAN1 | 379 | Radio Layer 1 (Physical layer) |
| RAN | RAN2 | 380 | Radio Layer 2/3 (Radio Resource Control) |
| RAN | RAN3 | 381 | UTRAN/E-UTRAN/NG-RAN architecture |
| RAN | RAN4 | 382 | Radio Performance and Protocol Aspects |
| RAN | RAN5 | 657 | Mobile terminal conformance testing |
| RAN | RAN6 | 843 | Radio Access Network (Legacy/Closed) |
| SA | SA Plenary | 375 | TSG SA overview |
| SA | SA1 | 384 | Services |
| SA | SA2 | 385 | System Architecture and Services |
| SA | SA3 | 386 | Security and Privacy |
| SA | SA4 | 387 | Multimedia Codecs, Systems and Services |
| SA | SA5 | 388 | Management, Orchestration and Charging |
| SA | SA6 | 825 | Application Enablement and Critical Communication Applications |
| CT | CT Plenary | 649 | TSG CT overview |
| CT | CT1 | 651 | User Equipment to Core Network protocols |
| CT | CT2 | 652 | Interworking with External Networks & Policy and Charging Control |
| CT | CT3 | 653 | Closed Group (was GERAN coordination) |
| CT | CT4 | 654 | Core Network Protocols |
| CT | CT5 | 655 | Core Network and Terminals (Architecture) |
| CT | CT6 | 656 | Smart Card Application Aspects |
3GPP meeting lists use dynamic pages at: