curatedreviewedreviewed mapping begins in Rel-18

Feature lineage · XR / Immersive Media

Extended-reality service requirements, media and QoS context.

Reviewed topic evidence ↗Topic explorer →Ask Atlas →

Mapped specs4

Explicit stage labels0

Inferred orientations4

Relationships1

Connected WIs35

Rel-14 CR context50

Layer 1

Requirements / Stage 1 orientation

1 spec

TS 22.261

Service requirements for the 5G system

S1 · Rel-15

inferredOrientation inferred from the 22-series; this is not an official 3GPP stage assignment.

Layer 2

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 23.503

Policy and charging control framework for the 5G System (5GS); Stage 2

S2 · Rel-15

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

Layer 3

Media

1 spec

TS 26.114

IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and interaction

S4 · Rel-7

inferredOrientation 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%

3GPP source ↗Official Work Plan snapshot ↗

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.

LTE_VoLTE_ViLTE_enh-S4Rel-14 · connected · 100%

3GPP ↗

NB_IOTenh-CoreRel-14 · connected · 100%

3GPP ↗

TEI14Rel-14 · connected · 100%

3GPP ↗

DUMMYRel-13 · connected · 100%

3GPP ↗

QOSE2EMTSIRel-13 · connected · 100%

3GPP ↗

ROIRel-13 · connected · 100%

3GPP ↗

TEI13Rel-13 · connected · 100%

3GPP ↗

CVORel-12 · connected · 100%

3GPP ↗

CVO-SA4Rel-12 · connected · 100%

3GPP ↗

E2EMTSIRel-12 · connected · 100%

3GPP ↗

EVS_codecRel-12 · connected · 100%

3GPP ↗

EVS_codec-SA4Rel-12 · connected · 100%

3GPP ↗

Cross-spec traceability

Release-valid relationships

23.503policy for23.501

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-14 context

CR activity across mapped specs

Context only: these CRs target mapped specifications in Rel-14; they are not automatically attributed to the feature.

26.114 · CR 0396

IANA Registration for ccc-list SDP attribute

revised

26.114 · CR 0374

RTCP BW Recommendations

revised

26.114 · CR 0374 rev.1

CR 26.114-0374 rev 1 RTCP BW Recommendations (Release 14)

revised

26.114 · CR 0374 rev.2

CR 26.114-0374 rev 2 RTCP Bandwidth Recommendations (Release 14)

revised

26.114 · CR 0374 rev.3

CR 26.114-0374 rev 3 RTCP Bandwidth Recommendations (Release 14)

approved

26.114 · CR 0382

Corrections related to recommended mode set for AMR and AMR-WB

revised

26.114 · CR 0382 rev.1

CR 26.114-0382 rev 1 Corrections related to recommended mode set for AMR and AMR-WB (Rel-14)

approved

26.114 · CR 0384

CR 26.114-0384 Clarifications on using imageattr (Rel-14)

approved

26.114 · CR 0385

Re-insertion of simulcast and pause-resume

revised

26.114 · CR 0385 rev.1

CR 26.114-0385 rev 1 Re-insertion of simulcast and pause-resume (Rel-14)

approved

26.114 · CR 0388

Correction of SDP example (Release 14)

approved

26.114 · CR 0389

Examples of Using the Compact CCC SDP Attribute

revised

26.114 · CR 0389 rev.1

CR 26.114-0389 rev 1 Examples of Using the Compact CCC SDP Attribute (Rel-14)

revised

26.114 · CR 0389 rev.2

Examples of Using the Compact CCC SDP Attribute

approved

26.114 · CR 0390

Compact Concurrent Codec Capabilities SDP Usage for MMCMH CCCEx and Session Initiation

revised

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 →