Canonical Atlas record
Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification
LTE RRC
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Release evolution
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Release ledger
Rel-16 snapshot
853 indexed Change Requests · 25 connected Work Items.
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Version history
Showing 60 of 244 indexed versions.
Atlas classifications
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Work Items
Provisioning of IP-based multimedia services
Stage 1 for MBMS User Services
MBMS User Services
Security aspects of MBMS
Gmb interface for MBMS (CN3 part)
Support of the MBMS in CN protocols
Stage 2 MBMS Specification Work
TR on MBMS Architectural Study
Stage 1 for Multimedia Broadcast and Multicast Service
Stage 2 for Multimedia Broadcast and Multicast Service
Multimedia Broadcast and Multicast Service
Multiple-Input Multiple-Output (MIMO) antennas
Earthquake and Tsunami Warning System
UTRA HNB
Rel-8 LTE 3G Long Term Evolution - Evolved Packet System RAN part
LTE Radio Interface Layer 2 and 3 Protocol Aspect
LTE Evolved UTRA and UTRAN RF Radio Transmission/Reception, System Performance Requirements and Conformance Testing
(Small) Technical Enhancements and Improvements for Rel-8
Stage 1 for EHNB
Enhanced Home NodeB / eNodeB
Architecture aspects of EHNB
Home NB and Home eNB enhancements - RAN2 aspects
LTE TDD Home eNodeB RF Requirements
Support for IMS Emergency Calls over LTE
Positioning Support for LTE
Enhanced Dual-Layer transmission for LTE
MBMS support in LTE
Public Warning System
Public Warning System (PWS) RAN aspects
Extended UMTS/LTE 800 MHz
UMTS/LTE 800 MHz for Europe
Rel-9 Self-Organizing Networks (SON)
Service Specific Access Control in EPS
(Small) Technical Enhancements and Improvements for Rel-9
Extended UMTS/LTE 1500 MHz
Deleted - Support of WiMAX - LTE Mobility
Core part: Expanded 1900 MHz Band for UTRA and LTE
Perf. part: Expanded 1900 MHz Band for UTRA and LTE
Carrier Aggregation for LTE
Core part: Carrier Aggregation for LTE
Perf. part: Carrier Aggregation for LTE
Deleted - Core part: Latency reductions for LTE
Relays for LTE
Core part: Relays for LTE
Security for LTE Relay Nodes (Stage 2)
Core part: LTE TDD in 2600MHz for US
Uplink Multiple Antenna Transmission for LTE
Core part: UL multiple antenna transmission for LTE
Enhanced Downlink Multiple Antenna Transmission for LTE
Core part: Enhanced Downlink Multiple Antenna Transmission for LTE
Further enhancements to MBMS for LTE
Core part: Further enhancements to MBMS for LTE
Minimization of Drive Tests for E-UTRAN and UTRAN
Core part: Minimization of Drive Tests for E-UTRAN and UTRAN
Network Improvements for Machine-Type Communications
RAN mechanisms to avoid CN overload due to Machine-Type Communications
Core part: UMTS/LTE 3500 MHz
LTE Self Optimizing Networks (SON) enhancements
Core part: LTE Self Optimizing Networks (SON) enhancements
(Small) Technical Enhancements and Improvements for Rel-10
Enhanced Inter-Cell Interference Control (ICIC) for non-Carrier Aggregation (CA) based deployments of heterogeneous networks for LTE
Core part: Enhanced Inter-Cell Interference Control (ICIC) for non-Carrier Aggregation (CA) based deployments of heterogeneous networks for LTE
Enhancements for Multimedia Priority Service
Core part: Coordinated Multi-Point Operation for LTE Downlink
Core part: Coordinated Multi-Point Operation for LTE Uplink
Core part: Further Enhancements to CELL_FACH
Network-Based Positioning Support for LTE
Core part: Network-Based Positioning Support for LTE
Core part: LTE Advanced Carrier Aggregation of Band 3 and Band 7
Core part: LTE Carrier Aggregation Enhancements
Core part: Additional special subframe configuration for LTE TDD
Core part: LTE E850 - Lower Band for Region 2 (non-US), Band 27
Core part: LTE RAN Enhancements for Diverse Data Applications
Core part: Enhanced downlink control channel(s) for LTE Advanced
Service continuity improvements for MBMS for LTE
Core part: Service continuity improvements for MBMS for LTE
Core part: RAN overload control for Machine-Type Communications
Core part: Further Self Optimizing Networks (SON) enhancements
Signalling and Procedure for Interference Avoidance for in-device coexistence
Core part: Signalling and Procedure for Interference Avoidance for in-device coexistence
(Small) Technical Enhancements and Improvements for Rel-11
Core part: Extending 850 MHz Upper Band (814 849 MHz)
Perf. part: Extending 850 MHz Upper Band (814 849 MHz)
Core part: Further Enhanced Non CA-based ICIC for LTE
Enhancement of Minimization of Drive Tests for E-UTRAN and UTRAN
Core part: Enhancement of Minimization of Drive Tests for E-UTRAN and UTRAN
GERAN aspects of Single Radio Voice Call Continuity from UTRAN/GERAN to E-UTRAN/HSPA (Stage 3)
Core part: LTE Coverage Enhancements
Further enhancements to H(e)NB mobility - Part 3 (Stage 2/3)
Core part: Further enhancements to H(e)NB mobility - Part 3
Core part: HetNet Mobility enhancements for LTE
Core part: Low cost & enhanced coverage MTC UE for LTE
Core part:LTE Advanced inter-band Carrier Aggregation of Band 1 and Band 8
Core part:LTE Advanced intra-band non-contiguous Carrier Aggregation: framework requirements for 2UL
Core part: LTE TDD-FDD joint operation including Carrier Aggregation
Core part: LTE Device to Device Proximity Services
Core part: Network-Assisted Interference Cancellation and Suppression for LTE
Deleted - Core part: New Carrier Type for LTE
E-UTRA Small cell enhancements - Physical layer aspects
Core part: E-UTRA Small cell enhancements - Physical layer aspects
Core part: Dual connectivity for LTE
Core part: Further Enhancements to LTE TDD for DL-UL Interference Management and Traffic Adaptation
Core part: Increasing the minimum number of carriers for UE monitoring in UTRA and E-UTRA
Core part: L-band for Supplemental Downlink in E-UTRA and UTRA
Core part: LTE in the US Wireless Communications Service (WCS) Band 30
Further Downlink MIMO Enhancement for LTE Advanced
Core part: Further Downlink MIMO Enhancement for LTE Advanced
Core part: Further MBMS operations support for E-UTRAN
MBMS Improvements
Core part: RAN enhancements for Machine-Type and other mobile data applications Communications
Deleted - RAN2 part for Security aspects of Public Warning System
Core part: Smart Congestion Mitigation in E-UTRAN
(Small) Technical Enhancements and Improvements for Rel-12
Core part: WLAN/3GPP Radio Interworking
Core part: RAN aspects of Application specific Congestion control for Data Communication
Core part: Dedicated Core Networks
LTE Carrier Aggregation Enhancement Beyond 5 Carriers
Core part: LTE Carrier Aggregation Enhancement Beyond 5 Carriers
Perf. part: CRS Interference Mitigation for LTE Homogenous Deployments
Core part: Elevation Beamforming/Full-Dimension (FD) MIMO for LTE
Interference mitigation for downlink control channels of LTE
Perf. part: Interference mitigation for downlink control channels of LTE
Core part: Licensed-Assisted Access using LTE
Core part: Multicarrier Load Distribution of UEs in LTE
Core part: Further LTE Physical Layer Enhancements for MTC
Core part: Support of single-cell point-to-multipoint transmission in LTE
UE core requirements for uplink 64 QAM
Core part: UE core requirements for uplink 64 QAM
Core part: LTE-WLAN Radio Level Integration and Interworking Enhancement
Core part: LTE-WLAN RAN Level Integration supporting legacy WLAN
Core part: Dual Connectivity enhancements for LTE
Core part: Extension of Dual Connectivity in E-UTRAN
Enhanced LTE Device to Device Proximity Services
Core part: Enhanced LTE Device to Device Proximity Services
Further Enhancements of Minimization of Drive Tests for E-UTRAN
Core part: Further Enhancements of Minimization of Drive Tests for E-UTRAN
Core part: RAN enhancements for extended DRX in LTE
Core part: Narrowband Internet of Things (IOT)
(Small) Technical Enhancements and Improvements for Rel-13
Study on Latency reduction techniques for LTE
Core part: L2 latency reduction techniques for LTE
Core part: Downlink Multiuser Superposition Transmission for LTE
Core part: Support for V2V services based on LTE sidelink
SRS (sounding reference signal) switching between LTE component carriers
Core part: SRS (sounding reference signal) switching between LTE component carriers
Core part: Requirements for a new UE category with single receiver based on Category 1 for LTE
Core part: Uplink Capacity Enhancements for LTE
Core part: LTE-based V2X Services
Voice and Video Enhancement for LTE
Core part: Voice and Video Enhancement for LTE
Core part: Enhanced LTE-WLAN Aggregation (LWA)
Enhancements on Full-Dimension (FD) MIMO for LTE
Core part: Enhancements on Full-Dimension (FD) MIMO for LTE
Core part: Enhanced LAA for LTE
Core part: Further mobility enhancements in LTE
Further enhanced MTC for LTE
Core part: Further enhanced MTC for LTE
Performance enhancements for high speed scenario in LTE
Core part: Performance enhancements for high speed scenario in LTE
LTE Measurement Gap Enhancement
Core part: LTE Measurement Gap Enhancement
eMBMS enhancements for LTE
Core part: eMBMS enhancements for LTE
Enhancements of NB-IoT
Core part: Enhancements of NB-IoT
(Small) Technical Enhancements and Improvements for Rel-14
Core part: RAN aspects of eDECOR for UMTS and LTE
Increased number of E-UTRAN data bearers
Core part: Increased number of E-UTRAN data bearers
Core part: UE Positioning Accuracy Enhancements for LTE
Core part: Enhancements for high capacity stationary wireless link and introduction of 1024 QAM for LTE DL
LTE CRS-Interference Mitigation performance requirements for single RX chain UEs
LTE connectivity to 5G-CN
Core part: LTE connectivity to 5G-CN
Enhanced LTE Support for Aerial Vehicles
Core part: Enhanced LTE Support for Aerial Vehicles
Add UE Power Class 2 to band 41 intra-band contiguous LTE CA
Highly Reliable Low Latency Communication for LTE
Core part: Highly Reliable Low Latency Communication for LTE
Stopped - Core part: Signalling reduction to enable light connection for LTE
Core part: Bluetooth/WLAN measurement collection in LTE Minimization of Drive Tests (MDT)
UE requirements for network-based CRS interference mitigation for LTE
Quality of Experience (QoE) Measurement Collection for streaming services in E-UTRAN
Core part:Quality of Experience (QoE) Measurement Collection for streaming services in E-UTRAN
Core part: UL data compression in LTE
Core part: Further video enhancements for LTE
Core part: Even further enhanced MTC for LTE
Enhancements on LTE-based V2X Services
Core part: V2X phase 2 based on LTE
Core part: Enhancing LTE CA Utilization
Shortened TTI and processing time for LTE
Core part: Shortened TTI and processing time for LTE
Core part: Enhancements to LTE operation in unlicensed spectrum
Core part: Further NB-IoT enhancements
New Radio Access Technology
Core part: New Radio Access Technology
(Small) Technical Enhancements and Improvements for Rel-15
Core part: Further enhancements to Coordinated Multi-Point (CoMP) Operation for LTE
5G V2X with NR sidelink
Core part: 5G V2X with NR sidelink
Enhancements to Framework for Live Uplink Streaming
Support for NavIC Navigation Satellite System for LTE
Core part: DL MIMO efficiency enhancements for LTE
Core part: LTE-NR & NR-NR Dual Connectivity and NR CA enhancements
Core part: Additional MTC enhancements for LTE
Core part: Even further mobility enhancement in E-UTRAN
Core part: Further performance enhancement for LTE in high speed scenario
Core part: LTE-based 5G terrestrial broadcast
Core part: Additional enhancements for NB-IoT
Core part: Private Network Support for NG-RAN
NR support for high speed train scenario
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: NR RRM enhancement
Core part: SON (Self-Organising Networks) and MDT (Minimization of Drive Tests) support for NR
Core part: UE Power Saving in NR
Core part: NR positioning support
Core part: NR-based access to unlicensed spectrum
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
Study on NB-IoT/eMTC support for NTN
NB-IoT/eMTC support for Non-Terrestrial Networks
Core part: NB-IoT/eMTC support for Non-Terrestrial Networks
Core part: Further Multi-RAT Dual-Connectivity enhancements
Core part: Support for Multi-SIM devices for LTE/NR
Core part: New bands and bandwidth allocation for 5G terrestrial broadcast - part 1
Support for Minimization of service Interruption
Historical association · verification pendingAdditional enhancements for NB-IoT and LTE-MTC
Core part: Additional enhancements for NB-IoT and LTE-MTC
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 and MR-DC measurement gap enhancements
Core part: Solutions for NR for NTN
Core part: NR Sidelink enhancement
Core part: NR Sidelink Relay
Core part: Extending current NR operation to 71GHz
Core part: NR positioning enhancements
(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: IoT (Internet of Things) NTN (non-terrestrial network) enhancements
Core part: NB-IoT (Narrowband IoT)/eMTC (enhanced Machine Type Communication) core & performance requirements for Non-Terrestrial Networks (NTN)
Core part: Enhanced LTE Support for UAV (Uncrewed Aerial Vehicles)
Further RF requirements enhancement for NR and EN-DC in frequency range 1 (FR1)
Core part: Further enhancement of data collection for SON (Self-Organising Networks)/MDT (Minimization of Drive Tests) in NR and EN-DC
NR support for dedicated spectrum less than 5MHz for FR1
Core part: NR support for dedicated spectrum less than 5MHz for FR1
Core part: Further enhancements on NR and MR-DC measurement gaps and measurements without gaps
Core part: Further NR mobility enhancements
Core part: Enhancement on NR QoE management and optimizations for diverse services
Core part: NR support for UAV (Uncrewed Aerial Vehicles)
Core part: Mobile IAB (Integrated Access and Backhaul) for NR
Enhancements of NR shared spectrum bands
(Small) Technical Enhancements and Improvements for Rel-18
Non-Terrestrial Networks (NTN) for Internet of Things (IoT) Phase 3 (for LTE)
Core part: Non-Terrestrial Networks (NTN) for Internet of Things (IoT) Phase 3
Introduction of IoT-NTN TDD mode
Core part: Introduction of IoT-NTN TDD mode
Inter-RAT mode mobility support from E-UTRAN TN to NR NTN
Core part: Inter-RAT mode mobility support from E-UTRAN TN to NR NTN
LTE-based 5G Broadcast Phase 2
Core part: LTE-based 5G Broadcast Phase 2
Minimization of Service Interruption During Core Network Failure Phase 2
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: Enhanced requirements and conductive test methodology for NR NTN and IoT NTN
(Small) Technical Enhancements and Improvements for Rel-19
Core part: Enhanced requirements for NR NTN and IoT NTN Phase 2
(Small) Technical Enhancements and Improvements for Rel-20
(Small) Technical Enhancements and Improvements for R99
UMTS
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