Layer 1
Requirements / Stage 1 orientation
TS 22.261
Service requirements for the 5G system
S1 · Rel-15inferredOrientation inferred from the 22-series; this is not an official 3GPP stage assignment.
curatedreviewedreviewed from Rel-18
Feature lineage · XR / Immersive Media
Extended-reality service requirements, media and QoS context.
Mapped specs4
Explicit stage labels0
Inferred orientations4
Relationships2
Connected WIs100
Rel-19 CR context50
1 spec
Layer 2
System architecture & procedures / Stage 2 orientation
TS 23.501
System architecture for the 5G System (5GS)
S2 · Rel-15inferredOrientation inferred from the 23-series; this is not an official 3GPP stage assignment.
TS 23.503
Policy and charging control framework for the 5G System (5GS); Stage 2
S2 · Rel-15inferredOrientation inferred from the 23-series; this is not an official 3GPP stage assignment.
Layer 3
Media
TS 26.114
IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and interaction
S4 · Rel-7inferredOrientation inferred from the 26-series; this is not an official 3GPP stage assignment.
Primary feature evidence
Topic source Work Item
XRM
Architecture Enhancements for XR (Extended Reality) and media service
Rel-18 · PCG approved · WG not indexed · Work Plan 100%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.
5GSAT_Ph3Rel-19 · connected · 100%
3GPP ↗5GSAT_Ph3Rel-19 · connected · 100%
3GPP ↗5GSAT_Ph3-ARCRel-19 · connected · 100%
3GPP ↗5GSAT_Ph3_ARCHRel-19 · connected · 100%
Historical association · verification pending3GPP ↗5G_FemtoRel-19 · connected · 100%
3GPP ↗5G_FemtoRel-19 · connected · 100%
3GPP ↗5G_RTP_Ph2Rel-19 · connected · 100%
3GPP ↗AIML_CNRel-19 · connected · 100%
3GPP ↗AIML_MT_Ph2Rel-19 · connected · 100%
3GPP ↗AmbientIoTRel-19 · connected · 100%
3GPP ↗AmbientIoTRel-19 · connected · 100%
3GPP ↗AmbientIoT-ARCRel-19 · connected · 100%
3GPP ↗Cross-spec traceability
Release-valid relationships
23.503policy for23.501curatedreviewed
23.501stage realization of22.261curatedreviewedevidence ↗
Primary WI evolution
Change Requests linked to the primary Work Item
29.512 · CR 1487 rev.1
Correcting attribute name of the congestion threshold for uplink information
Rel-19 · approved3GPP CR ↗29.514 · CR 0818 rev.1
Corrections to the QosMonitoringReport data type
Rel-19 · approved3GPP CR ↗24.501 · CR 7088
Correction to PDU set based handling
Rel-19 · approved3GPP CR ↗29.514 · CR 0804 rev.1
Corrections to the congestReports
Rel-19 · approved3GPP CR ↗29.512 · CR 1425 rev.1
Correction to the maximum number of reference to QosMonitoringData
Rel-19 · approved3GPP CR ↗24.501 · CR 6991 rev.1
Term defined for "IP PDU session type" and minor fixes in ECN marking for L4S indication IE
Rel-19 · approved3GPP CR ↗29.281 · CR 0139 rev.2
PDU Set Information Container
Rel-19 · approved3GPP CR ↗29.512 · CR 1414 rev.1
Support of MDBV and average window in AQP contained in the PCC rule
Rel-19 · approved3GPP CR ↗29.522 · CR 1644 rev.1
Update Alternative QoS Parameter Set
Rel-19 · approved3GPP CR ↗29.522 · CR 1700 rev.1
Corrections on the feature name
Rel-19 · approved3GPP CR ↗29.122 · CR 0953 rev.1
Update Alternative QoS Parameter Set
Rel-19 · approved3GPP CR ↗29.514 · CR 0794 rev.1
Corrections on MDBV and average window in AQP
Rel-19 · approved3GPP CR ↗29.244 · CR 0979
Correction to End of Data Burst marking
Rel-19 · approved3GPP CR ↗29.122 · CR 0919 rev.4
Update Alternative QoS Parameter Set
Rel-19 · approved3GPP CR ↗23.501 · CR 6070 rev.7
Clarifications on ECN marking for L4S
Rel-19 · approved3GPP CR ↗Rel-19 context
CR activity across mapped specs
Context only: these CRs target mapped specifications in Rel-19; they are not automatically attributed to the feature.
23.501 · CR 5360 rev.2
The enhanced function in Indirect Network Sharing
approved3GPP CR ↗23.501 · CR 5365 rev.2
Indirect Network Sharing
approved3GPP CR ↗23.501 · CR 5367 rev.2
ProSe support for NPNs
approved3GPP CR ↗23.501 · CR 5364 rev.5
RVAS with target NF selection enhancement.
approved3GPP CR ↗23.501 · CR 5380 rev.6
Subscription-based routing to a target core network
approved3GPP CR ↗23.503 · CR 1288 rev.4
Minimize number of UE and AM Policy Associations
approved3GPP CR ↗23.501 · CR 5398 rev.2
Spending Limits for UE Policies in Roaming scenario
approved3GPP CR ↗23.501 · CR 5399 rev.1
NF discovery and selection by target PLMN
approved3GPP CR ↗23.501 · CR 5356 rev.6
Network Slicing for Indirect Network Sharing
approved3GPP CR ↗23.501 · CR 5402 rev.2
Support of QoS monitoring capability configuration and transfer within 5GC
approved3GPP CR ↗23.503 · CR 1300 rev.2
Support of QoS monitoring capability configuration and transfer within 5GC
approved3GPP CR ↗23.503 · CR 1296 rev.3
Spending Limits for UE Policies in Roaming scenario
approved3GPP CR ↗23.503 · CR 1309
Misalignment text in AM and UE policy association with respect to local configuration
approved3GPP CR ↗23.503 · CR 1318 rev.1
Add missing VPLMN specific URSP support indication
approved3GPP CR ↗23.503 · CR 1305 rev.1
Restrictions to use VPLMN specific URSP Rules in EPS
approved3GPP CR ↗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 23.502
Procedures for the 5G System (5GS)
S2 · Rel-15inferredrank 3790strong evidence
graph adjacency
stage_realization_of with mapped TS/TR 23.501
TS 24.501
Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3
C1 · Rel-15inferredrank 2100strong evidence
TS 29.522
5G System; Network Exposure Function Northbound APIs; Stage 3
C3 · Rel-15inferredrank 1750strong evidence
TS 29.503
5G System; Unified Data Management Services; Stage 3
C4 · Rel-15inferredrank 1675moderate evidence
TS 29.571
5G System; Common Data Types for Service Based Interfaces; Stage 3
C4 · Rel-15inferredrank 1650strong evidence
TS 29.518
5G System; Access and Mobility Management Services; Stage 3
C4 · Rel-15inferredrank 1550strong evidence
TS 29.513
5G System; Policy and Charging Control signalling flows and QoS parameter mapping; Stage 3
C3 · Rel-15inferredrank 1500strong evidence
TS 29.510
5G System; Network function repository services; Stage 3
C4 · Rel-15inferredrank 1450moderate evidence
TS 29.502
5G System; Session Management Services; Stage 3
C4 · Rel-15inferredrank 1375strong evidence
TS 29.512
5G System; Session Management Policy Control Service; Stage 3
C3 · Rel-15inferredrank 1375strong evidence
TS 29.244
Interface between the Control Plane and the User Plane nodes
C4 · Rel-14inferredrank 1225strong evidence
TS 27.007
AT command set for User Equipment (UE)
C1 · Rel-4inferredrank 1175moderate 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.