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 mapping begins in Rel-19
Feature lineage · Integrated Sensing and Communication
Emerging sensing functions spanning requirements, RAN and system architecture.
Mapped specs3
Explicit stage labels0
Inferred orientations3
Relationships2
Connected WIs100
Rel-18 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.
Layer 3
RAN / radio realization
TS 38.300
NR; NR and NG-RAN Overall description; Stage-2
R2 · Rel-15inferredOrientation inferred from the 38-series; this is not an official 3GPP stage assignment.
Primary feature evidence
Topic source Work Item
FS_Sensing
Study on Integrated Sensing and Communication
Rel-19 · PCG approved · S1 · 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.
5GSATBRel-18 · connected · 100%
3GPP ↗5GSATBRel-18 · connected · 100%
Historical association · verification pending3GPP ↗5GSAT_Ph2Rel-18 · connected · 100%
3GPP ↗5G_ProSe_Ph2Rel-18 · connected · 100%
3GPP ↗5G_eLCS_Ph3Rel-18 · connected · 100%
3GPP ↗5MBS_Ph2Rel-18 · connected · 100%
3GPP ↗5TRSRel-18 · connected · 100%
3GPP ↗5WWC_Ph2Rel-18 · connected · 100%
3GPP ↗5WWC_Ph2Rel-18 · connected · 100%
3GPP ↗AIML_MTRel-18 · connected · 100%
3GPP ↗AIMLsysRel-18 · connected · 100%
3GPP ↗AMPRel-18 · connected · 100%
3GPP ↗Cross-spec traceability
Release-valid relationships
23.501stage realization of22.261curatedreviewedevidence ↗
38.300ntn access context for23.501curatedreviewedevidence ↗
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-18 context
CR activity across mapped specs
Context only: these CRs target mapped specifications in Rel-18; they are not automatically attributed to the feature.
23.501 · CR 3864 rev.5
Policy control enhancements to support multi-modal flows
reissued3GPP CR ↗23.501 · CR 4036 rev.3
Introduction of Alternative S-NSSAI replacement determined by NSSF
revised3GPP CR ↗23.501 · CR 3792 rev.7
PCF support of 5GS Packet Delay Variation monitoring based on QoS monitoring mechanism and exposed to AF
reissued3GPP CR ↗23.501 · CR 4033 rev.11
Support of discontinuous coverage
revised3GPP CR ↗23.501 · CR 3887 rev.6
Introduction of 5GS information exposure
reissued3GPP CR ↗23.501 · CR 4046 rev.12
Support of PDU Set based handling
reissued3GPP CR ↗23.501 · CR 3896 rev.12
Update TS23.501 to reflect conclusion of KI#4 for XRM in TR23.700-60
reissued3GPP CR ↗23.501 · CR 3919 rev.7
Introduction of KI#6 conclusion: uplink-downlink transmission coordination
reissued3GPP CR ↗23.501 · CR 3875 rev.14
Introduction of support for Jitter Measurement and End of Data Burst reporting to the NG-RAN
reissued3GPP CR ↗23.501 · CR 3956 rev.11
Transfer of Satellite Coverage Data to a UE and AMF
revised3GPP CR ↗23.501 · CR 3855 rev.11
Introduction of support for L4S
reissued3GPP CR ↗23.501 · CR 3759 rev.7
Support of XR and Media Services
reissued3GPP CR ↗23.501 · CR 3923 rev.10
Network exposure support for XR services
reissued3GPP CR ↗23.501 · CR 3730
Equivalent SNPN support
approved3GPP CR ↗23.501 · CR 3733
De-activation timer for eCall only mode UE in RRC_INACTIVE
approved3GPP CR ↗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.