Feature lineage › 5GC Service-Based Architecture Mapped specs 9
Explicit stage labels 0
Inferred orientations 9
Relationships 6
Connected WIs 10
Rel-15 CR context 50
Layer 1
System architecture & procedures / Stage 2 orientation 2 specs TS 23.501 System architecture for the 5G System (5GS)
S2 · Rel-15 inferred Orientation 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 inferred Orientation 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 inferred Orientation 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 inferred Orientation 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 inferred Orientation 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 inferred Orientation 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 inferred Orientation 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 inferred Orientation 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 inferred Orientation 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.
5GS_Ph1 Rel-15 · connected · 97%
3GPP ↗ 5GS_Ph1-CT Rel-15 · connected · 100%
3GPP ↗ 5GS_Ph1-SEC Rel-15 · connected · 100%
Historical association · verification pending 3GPP ↗ LTE_Aerial Rel-15 · connected · 99%
3GPP ↗ NETSLICE-5GTRACE Rel-15 · connected · 100%
3GPP ↗ NR_newRAT-Core Rel-15 · connected · 100%
3GPP ↗ NB_IOTenh-Core Rel-14 · connected · 100%
3GPP ↗ V2XARC Rel-14 · connected · 100%
3GPP ↗ DUMMY Rel-13 · connected · 100%
3GPP ↗ TEI7 Rel-7 · connected · 100%
3GPP ↗ Cross-spec traceability
Release-valid relationships 23.502stage realization of 23.501
curated reviewed
29.502interface specification 23.502
curated reviewed
29.518stage3 realization of 23.502
29.503subscriber data service for 23.501
29.510service discovery for 23.501
29.502session service for 23.501
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-15 context
CR activity across mapped specs Context only: these CRs target mapped specifications in Rel-15; they are not automatically attributed to the feature.
23.501 · CR 0002 Using NRF for UPF discovery
revised 23.501 · CR 0002 rev.1 Using NRF for UPF discovery
revised 23.501 · CR 0002 rev.2 Using NRF for UPF discovery
approved 23.501 · CR 0326 rev.2 Slicing information and RFSP
revised 23.501 · CR 0369 Averaging Window Resolution
merged 23.501 · CR 0523 rev.2 UE location report to the SMF by RAN in RRC Inactive State
withdrawn 23.501 · CR 4251 Requested S-NSSAI status clarification
noted 23.501 · CR 5042 Addressing packet loss and first packet delay for public safety UEs
noted 23.501 · CR 0003 Configuration information the UE may exchange with the SMF during the lifetime of a PDU session
revised 23.501 · CR 0003 rev.1 Configuration information the UE may exchange with the SMF during the lifetime of a PDU session
revised 23.501 · CR 0003 rev.2 Configuration information the UE may exchange with the SMF during the lifetime of a PDU session
approved 23.501 · CR 0004 Handling of MM back-off timer for N3GPP Access
approved 23.501 · CR 0005 Correction of the definitions of Allowed NSSAI and Configured NSSAI
approved 23.501 · CR 0006 Allowed NSSAI and Access Type
revised 23.501 · CR 0006 rev.1 Allowed NSSAI and Access Type
revised Candidate expansion · review required
Specifications Atlas may be missing from this topic Inferred only. These records are not part of the reviewed semantic catalogue. The ranking score orders structural evidence; it is not a probability or confidence value, and there is no automatic promotion action.
TS 23.503 Policy and charging control framework for the 5G System (5GS); Stage 2
S2 · Rel-15 inferred rank 115 strong evidence
shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ shared work item Shares Work Item NETSLICE-5GTRACE with mapped specifications
evidence ↗ graph adjacency policy_for with mapped TS/TR 23.501
TS 24.007 Mobile radio interface signalling layer 3; General Aspects
C1 · Rel-4 inferred rank 100 moderate evidence
shared work item Shares Work Item TEI7 with mapped specifications
evidence ↗ shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ TS 24.229 IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3
C1 · Rel-5 inferred rank 100 moderate evidence
shared work item Shares Work Item TEI7 with mapped specifications
evidence ↗ shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ TS 29.507 5G System; Access and Mobility Policy Control Service; Stage 3
C3 · Rel-15 inferred rank 100 moderate evidence
shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ shared work item Shares Work Item NETSLICE-5GTRACE with mapped specifications
evidence ↗ TS 29.508 5G System; Session Management Event Exposure Service; Stage 3
C3 · Rel-15 inferred rank 100 moderate evidence
shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ shared work item Shares Work Item NETSLICE-5GTRACE with mapped specifications
evidence ↗ TS 29.571 5G System; Common Data Types for Service Based Interfaces; Stage 3
C4 · Rel-15 inferred rank 100 moderate evidence
shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ shared work item Shares Work Item NR_newRAT-Core with mapped specifications
evidence ↗ shared work item Shares Work Item NETSLICE-5GTRACE with mapped specifications
evidence ↗ TS 36.413 Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP)
R3 · Rel-8 inferred rank 100 moderate evidence
shared work item Shares Work Item NB_IOTenh-Core with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item NR_newRAT-Core with mapped specifications
evidence ↗ shared work item Shares Work Item LTE_Aerial with mapped specifications
evidence ↗ TS 24.501 Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3
C1 · Rel-15 inferred rank 90 strong evidence
shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ graph adjacency procedure_component with mapped TS/TR 23.502
TS 33.501 Security architecture and procedures for 5G System
S3 · Rel-15 inferred rank 90 strong evidence
shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-SEC with mapped specifications
evidence ↗ graph adjacency security_for with mapped TS/TR 23.502
TS 23.008 Organization of subscriber data
C4 · Rel-4 inferred rank 75 moderate evidence
shared work item Shares Work Item TEI7 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1 with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ TS 23.040 Technical realization of the Short Message Service (SMS)
C1 · Rel-4 inferred rank 75 moderate evidence
shared work item Shares Work Item TEI7 with mapped specifications
evidence ↗ shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ TS 23.041 Technical realization of Cell Broadcast Service (CBS)
C1 · Rel-4 inferred rank 75 moderate evidence
shared work item Shares Work Item TEI7 with mapped specifications
evidence ↗ shared work item Shares Work Item DUMMY with mapped specifications
evidence ↗ shared work item Shares Work Item 5GS_Ph1-CT with mapped specifications
evidence ↗ 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.