3GPP Spec Dictionary (3GPP Specification)¶
A quick reference for looking up the 3GPP specifications and related RFCs frequently used in 5GC by number, title, the scope they cover, and their main appearances on this site.
Related: Protocol Dictionary / NF Dictionary / Interface Dictionary / Registration chapter
Architecture/procedure series¶
| Number | Title (abbrev.) | Scope covered | Main appearances on this site |
|---|---|---|---|
| TS 23.501 | System architecture for the 5G System | 5GS architecture, NFs, reference points, QoS definitions | NF Dictionary / Interface Dictionary / QoS Dictionary |
| TS 23.502 | Procedures for the 5G System | Procedures for registration/session, etc. | Registration chapter / PDU Session chapter |
| TS 23.503 | Policy and charging control framework | The PCC framework | PCF page / BSF page |
| TS 23.003 | Numbering, addressing and identification | The identifier system | Identifier Dictionary |
Protocol/signalling series¶
| Number | Title (abbrev.) | Scope covered | Main appearances on this site |
|---|---|---|---|
| TS 24.501 | NAS protocol for 5GS | 5GMM/5GSM (NAS) | NAS Dictionary / IE Dictionary |
| TS 38.413 | NGAP (NG Application Protocol) | The N2 application layer | NGAP Dictionary / N2 page |
| TS 38.412 | NG signalling transport | SCTP for N2 (port 38412) | Protocol Dictionary |
| TS 29.244 | PFCP | N4 session control | PFCP Dictionary / N4 page |
| TS 29.281 | GTP-U | User-plane encapsulation | N3 page / N9 page |
| TS 38.415 | PDU Session User Plane protocol | QFI transport (PDU Session Container) | QoS Dictionary |
SBI/service series¶
| Number | Title (abbrev.) | Scope covered | Main appearances on this site |
|---|---|---|---|
| TS 29.500 | SBI framework (general) | The common SBI framework | HTTP API Dictionary |
| TS 29.501 | SBI OpenAPI conventions | SBI design principles | HTTP API Dictionary |
| TS 29.502 | Nsmf (SMF service API) | The SMF's service API | HTTP API Dictionary / NF Dictionary |
| TS 29.503 | Nudm (UDM service API) | The UDM's service API | HTTP API Dictionary / NF Dictionary |
| TS 29.509 | Nausf (AUSF service API) | The AUSF's service API | HTTP API Dictionary / NF Dictionary |
| TS 29.510 | Nnrf (NRF service API) | The NRF's service API (NF management/discovery) | HTTP API Dictionary / NF Dictionary |
| TS 29.518 | Namf (AMF service API) | The AMF's service API | HTTP API Dictionary / NF Dictionary |
| TS 29.512 / 29.507 / 29.514 | Npcf (SM / AM / Policy Authorization) | The PCF's service API | HTTP API Dictionary / NF Dictionary |
| TS 29.531 / 29.522 / 29.504 | Nnssf / Nnef / Nudr | The service APIs of NSSF/NEF/UDR | HTTP API Dictionary / NF Dictionary |
| TS 29.540 / 29.520 / 29.521 | Nsmsf / Nnwdaf / Nbsf | The service APIs of SMSF/NWDAF/BSF | HTTP API Dictionary / NF Dictionary |
| TS 29.573 | N32 (inter-PLMN interconnection) | Roaming interconnection | N32 page / SEPP page |
Security/charging series¶
| Number | Title (abbrev.) | Scope covered | Main appearances on this site |
|---|---|---|---|
| TS 33.501 | Security architecture for 5GS | Authentication, key hierarchy, protection | Security Dictionary / Authentication chapter |
| TS 32.240 / 32.290 / 32.291 | Charging (architecture / 5G charging service / details) | Charging | CHF page / N40 page |
Related RFCs¶
| RFC | Content | Appearances |
|---|---|---|
| RFC 4960 | SCTP | Protocol Dictionary |
| RFC 7540 | HTTP/2 | Protocol Dictionary / HTTP API Dictionary |
| RFC 5448 | EAP-AKA' | Security Dictionary / Authentication chapter |
Section numbers shift by Release
This dictionary is a quick reference at the specification-number level. Because the section numbers of each TS differ by Release, the policy on individual pages is to attach "to be confirmed" to section numbers. For the exact section structure, check the published versions of the PDFs from 3GPP / ETSI.