curatedreviewedreviewed mapping begins in Rel-15

Feature lineage · 5GC Service-Based Architecture

Stage-3 service APIs and discovery for AMF, SMF, UDM, AUSF and NRF.

Reviewed topic evidence ↗Topic explorer →Ask Atlas →

Mapped specs9

Explicit stage labels0

Inferred orientations9

Relationships2

Connected WIs1

Rel-10 CR context0

Layer 1

System architecture & procedures / Stage 2 orientation

2 specs

TS 23.501

System architecture for the 5G System (5GS)

S2 · Rel-15

inferredOrientation inferred from the 23-series; this is not an official 3GPP stage assignment.

TS 23.502

Procedures for the 5G System (5GS)

S2 · Rel-15

inferredOrientation inferred from the 23-series; this is not an official 3GPP stage assignment.

Layer 2

Core-network protocol & service realization

7 specs

TS 29.500

5G System; Technical Realization of Service Based Architecture; Stage 3

C4 · Rel-15

inferredOrientation inferred from the 29-series; this is not an official 3GPP stage assignment.

TS 29.501

5G System; Principles and Guidelines for Services Definition; Stage 3

C4 · Rel-15

inferredOrientation inferred from the 29-series; this is not an official 3GPP stage assignment.

TS 29.502

5G System; Session Management Services; Stage 3

C4 · Rel-15

inferredOrientation inferred from the 29-series; this is not an official 3GPP stage assignment.

TS 29.503

5G System; Unified Data Management Services; Stage 3

C4 · Rel-15

inferredOrientation inferred from the 29-series; this is not an official 3GPP stage assignment.

TS 29.509

5G System; Authentication Server Services; Stage 3

C4 · Rel-15

inferredOrientation inferred from the 29-series; this is not an official 3GPP stage assignment.

TS 29.510

5G System; Network function repository services; Stage 3

C4 · Rel-15

inferredOrientation inferred from the 29-series; this is not an official 3GPP stage assignment.

TS 29.518

5G System; Access and Mobility Management Services; Stage 3

C4 · Rel-15

inferredOrientation inferred from the 29-series; this is not an official 3GPP stage assignment.

Primary feature evidence

Topic source Work Item

The reviewed topic source is not an indexed Work Item record. The source link above remains the primary evidence anchor.

Connected work

Work Items touching mapped specs

These Work Items share one or more mapped specifications. Atlas does not automatically claim that every connected Work Item defines this feature.

TEI7Rel-7 · connected · 100%

Cross-spec traceability

Release-valid relationships

23.502stage realization of23.501

curatedreviewed

29.502interface specification23.502

curatedreviewed

Primary WI evolution

Change Requests linked to the primary Work Item

No indexed CRs are linked to the primary Work Item at or before this release.

Rel-10 context

CR activity across mapped specs

Context only: these CRs target mapped specifications in Rel-10; they are not automatically attributed to the feature.

No CR activity targeting the mapped specifications is indexed for Rel-10.

Traceability limits

What this lineage is not claiming

The reviewed topic-to-specification mapping is Atlas-curated and non-normative even when its source is an official 3GPP record.
When an explicit stage classification is unavailable, specification layers are inferred from the TS/TR series and are labelled inferred rather than presented as official 3GPP stage assignments.
Connected Work Items and release-context Change Requests share mapped specifications; only the topic source Work Item is treated as primary evidence for the reviewed topic mapping.
This is traceability evidence and navigation, not a clause-by-clause normative feature definition.

Lineage JSON ↗Change Radar →