Canonical Atlas record
Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Multi-connectivity; Overall Description; Stage-2
LTE/NR multi-connectivity
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Release evolution
Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.
Release ledger
Rel-18 snapshot
73 indexed Change Requests · 9 connected Work Items.
Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0435 — Clarification on ambiguity of SN Addition Request for CHO
CR 0432 — Correction on QoS parameters for QoS Notification Control
CR 0418 — Correction of CPC Cancel and SN Release
CR 0417 — Correction of Conditional PSCell Change Cancel for S-CPAC
CR 0416 rev.1 — Clean-up corrections on stage 2 description of QMC
CR 0415 — Corrections for mobility enhancements in stage-2
CR 0404 rev.4 — Correction for mobility enhancements in stage-2
CR 0410 — Stage-2 updates for intra-SN S-CPAC with MN involvement
CR 0409 — Correction of IAB F1-C transfer in NR-DC
CR 0407 — Correction on conditional PSCell addition or change failure
CR 0403 rev.1 — Further miscellaneous corrections to QMC procedure
CR 0399 rev.2 — Miscellaneous corrections for mobility enhancements
Version history
Showing 60 of 72 indexed versions.
Atlas classifications
No Atlas classifications have been attached yet.
Work Items
Core part: New Radio Access Technology
5G V2X with NR sidelink
Core part: 5G V2X with NR sidelink
Core part: Direct data forwarding between NG-RAN and E-UTRAN nodes for inter-system mobility
Core part: LTE-NR & NR-NR Dual Connectivity and NR CA enhancements
Core part: Even further mobility enhancement in E-UTRAN
Core part: 2-step RACH for NR
Cross Link Interference (CLI) handling and Remote Interference Management (RIM) for NR
Core part: NR_IAB
Core part: Support of NR Industrial Internet of Things (IoT)
Core part: NR mobility enhancements
Core part: RF requirements for NR FR1
Core part: UE Power Saving in NR
Core part: NR-based access to unlicensed spectrum
Optimisations on UE radio capability signalling NR/E-UTRA Aspects
Core part: Optimisations on UE radio capability signalling NR/E-UTRA Aspects
Core part: Single Radio Voice Call Continuity from 5G to 3G
(Small) Technical Enhancements and Improvements for Rel-16
Historical association · verification pendingCore part: Further Multi-RAT Dual-Connectivity enhancements
Core part: Enhancement of data collection for SON (Self-Organising Networks)/MDT (Minimization of Drive Tests) in NR standalone and MR-DC (Multi-Radio Dual Connectivity)
Core part: Enhancements to IAB for NR
Core part: NR multicast and broadcast services
Further enhancements of NR RF requirements for frequency range 2 (FR2)
Core part: Further RRM enhancement for NR and MR-DC
Core part: NR Sidelink Relay
Core part: NR_UDC
Core part: UE power saving enhancements for NR
Core part: Enhancement of RAN slicing for NR
(Small) Technical Enhancements and Improvements for Rel-17
User Plane Integrity Protection for LTE
Core part: User Plane Integrity Protection support for EPC connected architectures
Core part: Dual Transmission/Reception (Tx/Rx) Multi-SIM for NR
Core part: Further enhancement of data collection for SON (Self-Organising Networks)/MDT (Minimization of Drive Tests) in NR and EN-DC
Core part: In-Device Co-existence (IDC) enhancements for NR and MR-DC
Core part: Further NR mobility enhancements
Core part: Enhancement on NR QoE management and optimizations for diverse services
Core part: XR (eXtended Reality) enhancements for NR
Expanded and improved NR positioning
Core part: Expanded and improved NR positioning
(Small) Technical Enhancements and Improvements for Rel-18
Core part: Enhancements for Artificial Intelligence (AI)/Machine Learning (ML) for NG-RAN
Core part: Artificial Intelligence (AI)/Machine Learning (ML) for NR air interface
Core part: Data collection for SON (Self-Organising Networks)/MDT (Minimization of Drive Tests) in NR standalone and MR-DC (Multi-Radio Dual Connectivity) Phase 4
Core part: Low-power wake-up signal and receiver for NR (LP-WUS/WUR)
Core part: NR mobility enhancements Phase 4
Core part: XR (eXtended Reality) for NR Phase 3
Core part: Evolution of NR duplex operation: Sub-band full duplex (SBFD)
Knowledge graph
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