3GPP 23-series — Technical Realization – Stage 2
The technical specifications (TS) are displayed in blue, while the reports (TR) are shown in green.
TS that have been discontinued in earlier releases are indicated with a light blue color.
TR in the '9' range that have been stopped are highlighted in light green.
TS or TR with a yellow background indicate those updated at the latest Q2-2024 Plenary Meetings. The new ones are displayed with a single red dotted overline.
click here to see the new 23-series documents introduced at each 3GPP quarterly Plenary Meeting
TS 23.002
REL 3 → 18
Network Architecture
TS 23.003
REL 3 → 18
Numbering, Addressing and Identification
TS 23.007
REL 3 → 18
Restoration Procedures
TS 23.008
REL 3 → 18
Organization of Subscriber Data
TS 23.009
REL 3 → 18
Handover Procedures
TS 23.011
REL 3 → 18
Technical Realization of Supplementary Services
TS 23.012
REL 3 → 18
Location Management Procedures
TS 23.014
REL 3 → 18
Support of DTMF Signalling
TS 23.015
REL 3 → 18
ODB — Operator Determined Call Barring
TS 23.016
REL 3 → 18
Subscriber Data Management
TS 23.018
REL 3 → 18
Basic Call Handling
TS 23.031
REL 3 → 18
FIGS — Fraud Information Gathering System
TS 23.032
REL 3 → 18
GAD — Universal Geographical Area Description
TS 23.034
REL 3 → 18
HSCSD — High Speed Circuit Switched Data
TS 23.035
REL 3 → 18
IST — Immediate Service Termination
TS 23.038
REL 3 → 18
Alphabets and language-specific information
TR 23.039
REL 3 → 5
Interface Protocols for the Connection of SMSCs to SMEs
TS 23.040
REL 3 → 18
SMS — Short Message Service
TS 23.041
REL 3 → 18
CBS — Cell Broadcast Service
TS 23.042
REL 3 → 18
Compression algorithm for text messaging services
TS 23.048
REL 4 → 5
USAT/SAT — Security mechanisms
TS 23.053
REL 4 → 18
TFO — Tandem Free Operation
TS 23.057
REL 3 → 18
MExE — Mobile Execution Environment
TS 23.060
REL 3 → 18
GPRS — General Packet Radio Service
TS 23.066
REL 3 → 18
MNP — Mobile Number Portability
TS 23.067
REL 3 → 18
eMLPP — enhanced Multi-Level Precedence and Pre-emption
TS 23.072
REL 3 → 18
CD — Call Deflection
TS 23.078
REL 3 → 18
CAMEL Phase X
TS 23.079
REL 3 → 18
SOR — Support of Optimal Routeing
TS 23.081
REL 3 → 18
CLIP/CLIR/COLP/COLR — Line Identification
TS 23.082
REL 3 → 18
CF — Call Forwarding
TS 23.083
REL 3 → 18
CW/HOLD — Call Waiting and Call Hold
TS 23.084
REL 3 → 18
MPTY — MultiParty
TS 23.085
REL 3 → 18
CUG — Closed User Group
TS 23.086
REL 3 → 18
AoC — Advice of Charge
TS 23.087
REL 3 → 18
UUS — User-to-User Signalling
TS 23.088
REL 3 → 18
CB — Call Barring
TS 23.090
REL 3 → 18
USSD — Unstructured Supplementary Service Data
TS 23.091
REL 3 → 18
ECT — Explicit Call Transfer
TS 23.093
REL 3 → 18
CCBS — Completion of Calls to Busy Subscriber
TS 23.094
REL 3 → 18
FM — Follow-Me
TS 23.096
REL 3 → 18
CNAP — Calling Name Presentation
TS 23.097
REL 3 → 18
MSP — Multiple Subscriber Profile
TS 23.101
REL 3 → 18
General UMTS Architecture
TS 23.107
REL 3 → 18
QoS Concept and Architecture
TS 23.108
REL 3 → 18
Mobile Radio Interface Layer 3 – Core Network Protocols
TS 23.110
REL 3 → 18
UMTS Access Stratum – Services and Functions
TS 23.116
REL 3 → 18
Super-Charger
TS 23.119
REL 3 → 18
GLR — Gateway Location Register
TS 23.121
REL 3
Architectural Requirements for Release 99
TS 23.122
REL 3 → 18
NAS Functions related to MS in Idle Mode
TS 23.125
REL 6
Overall high level functionality and architecture impacts of flow based charging
→ replaced by TS 23.203 from Rel‑7
→ replaced by TS 23.203 from Rel‑7
TS 23.127
REL 3 → 5
Virtual Home Environment (VHE) / Open Service Access (OSA)
→ replaced by TS 23.198 from Rel‑6
→ replaced by TS 23.198 from Rel‑6
TS 23.135
REL 3 → 18
Multicall
TS 23.139
REL 11 → 18
3GPP system / Fixed Broadband Access Network Interworking
TS 23.140
REL 3 → 6
MMS — Multimedia Messaging Service
TS 23.141
REL 6 → 18
Presence — Architecture and Functional Description
TS 23.142
REL 9 → 18
Value-added Services for SMS – Interface and Signalling Flow
TS 23.146
REL 4 → 18
Facsimile Group 3 non-Transparent
TS 23.153
REL 4 → 18
OoBTC — Out of Band Transcoder Control
TS 23.161
REL 13 → 18
Network-Based IP Flow Mobility
TS 23.167
REL 7 → 18
IMS Emergency Sessions
TS 23.171
REL 3
LCS — Location Services
→ replaced by TS 23.271 from Rel‑4
→ replaced by TS 23.271 from Rel‑4
TS 23.172
REL 5 → 18
SCUDIF — Service Change and UDI Fallback
TS 23.179
REL 13
Functional Architecture and Information Flows to support Mission Critical Communication Services
→ replaced by TS 23.379 from Rel‑14
→ replaced by TS 23.379 from Rel‑14
TS 23.180
REL 17 → 18
MCS support in the IOPS mode of operation
TS 23.195
REL 5
UESBI — User Equipment Specific Behaviour Information
TS 23.198
REL 6 → 9
OSA — Open Service Access
TS 23.202
REL 6 → 18
Circuit Switched Data Bearer Services
TS 23.203
REL 7 → 18
PCC — Policy and Charging Control architecture
TS 23.204
REL 7 → 18
Support of SMS over Generic 3GPP IP Access
TS 23.205
REL 4 → 18
BICC — Bearer-Independent CS Core network
TS 23.206
REL 7
VCC — Voice Call Continuity
TS 23.207
REL 5 → 18
E2E QoS Concept and Architecture
TS 23.214
REL 14 → 18
Architecture enhancements for Control and User Plane Separation of EPC Nodes
TS 23.216
REL 8 → 18
SRVCC — Single Radio Voice Call Continuity
TS 23.218
REL 5 → 18
IP Multimedia Call Model
TS 23.221
REL 4 → 18
Architectural Requirements
TS 23.222
REL 15 → 19
Common API Framework for 3GPP Northbound APIs
TS 23.226
REL 5 → 18
GTT — Global Text Telephony
TS 23.227
REL 4 → 5
Application and User Interaction in the UE
TS 23.228
REL 5 → 18
IMS — IP Multimedia Subsystem
TS 23.231
REL 8 → 18
SIP-I based CS Core Network
TS 23.234
REL 6 → 13
I-WLAN — 3GPP-WLAN Interworking
TS 23.236
REL 5 → 18
Intra-domain Connection of RAN Nodes to Multiple CN Nodes
TS 23.237
REL 8 → 18
IMS Service Continuity
TS 23.240
REL 6 → 18
GUP — Generic User Profile
TS 23.246
REL 6 → 18
MBMS — Architecture and Functional Description
TS 23.247
REL 17 → 18
Architectural enhancements for 5G Multicast-Broadcast
TS 23.251
REL 6 → 18
Network Sharing — Architecture and Functional Description
TS 23.255
REL 17 → 19
Application layer support for Uncrewed Aerial System (UAS) –
Functional architecture and information flows
Functional architecture and information flows
TS 23.256
REL 17 → 18
Support of Uncrewed Aerial Systems (UAS) connectivity, identification and tracking
TS 23.259
REL 8 → 18
PNM — Personal Network Management
TS 23.261
REL 10 → 18
IP Flow Mobility and Seamless WLAN Offload
TS 23.271
REL 4 → 18
LCS — Location Services
TS 23.272
REL 8 → 18
CS Fallback in EPS
TS 23.273
REL 16 → 18
5G System – Location Services (LCS)
TS 23.278
REL 5 → 18
CAMEL Phase 4 IMS Interworking
TS 23.279
REL 7 → 18
CSICS — CS-IMS Combinational Services
TS 23.280
REL 14 → 19
Common Functional Architecture to support Mission Critical Services
TS 23.281
REL 14 → 19
Functional Architecture and Information Flows to support Mission Critical Video (MCVideo)
TS 23.282
REL 14 → 19
Functional Architecture and Information Flows to support Mission Critical Data (MCData)
TS 23.283
REL 15 → 18
Mission Critical Communication Interworking with Land Mobile Radio Systems
TS 23.284
REL 10 → 18
LCLS — Local Call Local Switch
TS 23.285
REL 14 → 18
Architecture enhancements for V2X Services
TS 23.286
REL 16 → 18
Application Layer Support for V2X Services – Functional Architecture and Information Flows
TS 23.287
REL 16 → 18
Architecture enhancements for 5G System to support Vehicle-to-Everything (V2X) Services
TS 23.288
REL 16 → 18
Architecture enhancements for 5G System to support Network Data Analytics Services
TS 23.289
REL 17 → 19
Mission Critical services over 5G System
TS 23.292
REL 8 → 18
ICS — IMS Centralized Services
TS 23.303
REL 12 → 18
ProSe — Proximity-based Services
TS 23.304
REL 17 → 19
Proximity based Services (ProSe) in the 5G System (5GS)
TS 23.316
REL 16 → 18
Wireless and Wireline Convergence Access support for the 5G System
TS 23.327
REL 8 → 13
Mobility between I-WLAN and 3GPP systems
TS 23.333
REL 7 → 18
MRFC-MRFP Mp Interface
TS 23.334
REL 9 → 18
IMS‑ALG — IMS‑AGW Iq Interface
TS 23.335
REL 9 → 18
User Data Convergence (UDC) – Technical Realization and Information Flows
TS 23.379
REL 14 → 19
Functional Architecture and Information Flows to support Mission Critical Push To Talk (MCPTT)
TS 23.380
REL 8 → 18
IMS Restoration Procedures
TS 23.401
REL 8 → 18
GPRS Enhancements for E-UTRAN Access
TS 23.402
REL 8 → 18
Architecture Enhancements for non-3GPP Accesses
TS 23.406
REL 7
TISPAN — IMS Stage 2 Description
TS 23.417
REL 7
TISPAN — IMS Functional Architecture
TS 23.433
REL 18 → 19
Service Enabler Architecture Layer (SEAL) for Verticals – Data Delivery enabler for vertical applications
TS 23.434
REL 16 → 19
Service Enabler Architecture Layer (SEAL) for Verticals – Functional Architecture and Information Flows
TS 23.435
REL 18 → 19
Procedures for Network Slice Capability Exposure for Application Layer Enablement Service
TS 23.436
REL 18 → 19
Functional architecture and information flows for Application Data Analytics Enablement Service
TS 23.468
REL 12 → 18
GCSE_LTE — Group Communication System Enablers for LTE
TS 23.479
REL 16 → 18
UE MBMS APIs for Mission Critical Services
TS 23.501
REL 15 → 19
5G System – System Architecture
TS 23.502
REL 15 → 19
5G System – Procedures
TS 23.503
REL 15 → 19
5G System – PCC Framework
TS 23.506
REL 8
TISPAN — IMS Stage 2 Description
TS 23.507
REL 8
TISPAN — VCC
TS 23.508
REL 7 → 8
TISPAN — Presence Service
TS 23.509
REL 7 → 8
TISPAN — NGN Architecture to support Emergency Communication
TS 23.511
REL 7 → 8
TISPAN — XML Document Management
TS 23.517
REL 8
TISPAN — IMS Functional Architecture
TS 23.521
REL 8
TISPAN — Support of SMS over NGN IMS Subsystem
TS 23.527
REL 15 → 18
5G System – Restoration Procedures
TS 23.540
REL 17 → 18
5G System – Technical realization of Service Based Short Message Service
TS 23.542
REL 18
Application Layer support for Personal IoT Network
TS 23.548
REL 17 → 18
5G System enhancements for Edge Computing
TS 23.554
REL 17 → 19
Application architecture for MSGin5G Service
TS 23.558
REL 17 → 19
Architecture for enabling Edge Applications (EA)
TS 23.586
REL 18
Architectural enhancements to support Ranging based services and Sidelink Positioning
TS 23.611
REL 8
TISPAN — XML Document Management
TS 23.632
REL 16 → 18
User Data Interworking, Coexistence and Migration
TS 23.682
REL 11 → 18
Architecture Enhancements to Facilitate Communications with PDNs and Applications
TR 23.700-05
REL 18
Study on architecture enhancements for Vehicle-mounted Relays
TR 23.700-06
REL 19
Study on architecture enhancements for Vehicle-mounted Relays - Phase 2
TR 23.700-07
REL 17
Study on enhanced support of Non-Public Networks (NPN)
TR 23.700-08
REL 18
Study on enhanced support of Non-Public Networks; Phase 2
TR 23.700-10
REL 17
Study on enhanced IMS to 5GC integration Phase 2; CT WG1 aspects
TR 23.700-11
REL 17
Study on enhanced IMS to 5GC integration Phase 2; CT WG3 aspects
TR 23.700-12
REL 17
Study on enhanced IMS to 5GC integration Phase 2; CT WG4 aspects
TR 23.700-17
REL 18
Study on Wireless and Wireline Convergence for the 5G System (5GS) (5WWC); Phase 2
TR 23.700-18
REL 18
Study on system enabler for Service Function Chaining
TR 23.700-20
REL 17
Study on enhanced support of Industrial Internet of Things (IIoT) in the 5GS
TR 23.700-24
REL 17
Study on support of the 5G MSG (Message) Service
TR 23.700-25
REL 18
Study on Timing Resiliency and TSC and URLLC enhancements
TR 23.700-27
REL 18
Study on support of Satellite backhauling in 5GS
TR 23.700-28
REL 18
Study on integration of Satellite components in the 5G architecture – Phase 2
TR 23.700-29
REL 19
Study on integration of Satellite components in the 5G architecture – Phase 3
TR 23.700-33
REL 18
Study on System enhancement for ProSe in the 5GS – Phase 2
TR 23.700-34
REL 18
Study on SEAL data delivery enabler for Vertical applications
TR 23.700-36
REL 18
Study on Application Data Analytics Enablement Service
TR 23.700-38
REL 18
Study on sharing of administrative configuration between interconnected MC service systems
TR 23.700-40
REL 17
Study on enhancement of Network Slicing; Phase 2
TR 23.700-41
REL 18
Study on enhancement of Network Slicing – Phase 3
TR 23.700-46
REL 18
Study on 5GS Deterministic Networking (DetNet) interworking
TR 23.700-47
REL 18
Study on architectural enhancements for 5G multicast-broadcast services – Phase 2
TR 23.700-48
REL 18
5G System enhancements for Edge Computing – Phase 2
TR 23.700-53
REL 18
Study on Access Traffic Steering, Switching and Splitting support in the 5GS architecture – Phase 3
TR 23.700-55
REL 18
Study on enhanced Application Architecture for UAS applications
TR 23.700-58
REL 18
Study of further architecture enhancements for Uncrewed Aerial Systems and Urban Air Mobility
TR 23.700-60
REL 18
Study on XR (Extended Reality) and Media services
TR 23.700-61
REL 18
Study on Seamless UE Context Recovery
TR 23.700-62
REL 18
Study on UPF enhancement for Exposure And SBA
TR 23.700-63
REL 19
Study on UPF enhancement for Exposure and SBA – Phase 2
TR 23.700-64
REL 18
Study on enhancements to Application Layer support for V2X services – Phase 2
TR 23.700-68
REL 18
Study on Support of reduced capability NR devices – Phase 2
TR 23.700-71
REL 18
Study on enhancement to the 5GC LoCation Services (LCS) – Phase 3
TR 23.700-74
REL 18
Study on generic group management, exposure and communication enhancements
TR 23.700-75
REL 19
Study on Multimedia Priority Service (MPS) for IMS Messaging and SMS services
TR 23.700-76
REL 18
Study on ad hoc Group communication support for Mission Critical Services
TR 23.700-78
REL 18
Study on Application layer support for Personal IoT and Residential Networks
TR 23.700-79
REL 18
Study of Gateway UE function for Mission Critical (MC) Communications
TR 23.700-80
REL 18
Study on 5G system support for AI/ML-based services
TR 23.700-81
REL 18
Study on Enablers for Network Automation for 5G – Phase 3
TR 23.700-82
REL 19
Study on application layer support for AI/ML services
TR 23.700-85
REL 18
Study on enhancement of 5G User Equipment (UE) policy
TR 23.700-86
REL 18
Study on Architecture Enhancement to support Ranging based services and sidelink positioning
TR 23.700-87
REL 18
Study on system architecture enhancement for next generation real time communication
TR 23.700-88
REL 18
Study on architecture enhancements for Personal IoT Network (PIN)
TR 23.700-89
REL 18
Study on 5G AM Policy
TR 23.700-90
REL 18
Study on interconnection and migration aspects for Railways
TR 23.700-91
REL 17
Study on enablers for network automation for the 5GS; Phase 2
TR 23.700-93
REL 17
Study on Access Traffic Steering, Switch and Splitting support in the 5GS architecture; Phase 2
TR 23.700-95
REL 18
Study on Application enablement aspects for subscriber-aware Northbound API access
TR 23.700-96
REL 18
Study on 5G-enabled fused location service capability
TR 23.700-97
REL 18
Study on Application Capability Exposure for IoT Platforms
TR 23.700-98
REL 18
Study on enhanced Application Architecture for enabling Edge Applications
TR 23.700-99
REL 18
Study on Network Slice Capability Exposure for Application Layer Enablement
TR 23.701
REL 12
Study on Web Real Time Communication (WebRTC) Access to IMS
TR 23.702
REL 14
Study on 3GPP PS Data Off
TR 23.703
REL 12
Study on Architecture enhancements to support Proximity Services (ProSe)
TR 23.704
REL 13
Study on CS/PS Coordination in Shared Network
TR 23.705
REL 13
Study on System enhancements for User Plane Congestion Management
TR 23.706
REL 13
Study on enhancements to WebRTC Access to IMS
TR 23.707
REL 13
Architecture enhancements for Dedicated Core Networks
TR 23.708
REL 13
Architecture enhancements for Service Capability Exposure
TR 23.709
REL 13
Study on Optimizations to support High Latency Communications
TR 23.710
REL 14
Study on Improvement of Awareness of User Location
TR 23.711
REL 14
Enhancements of Dedicated Core Networks Selection Mechanism
TR 23.712
REL 13
Study on Warning Status Reporting
TR 23.713
REL 13
Study on Extended Architecture Support for Proximity-based Services
TR 23.714
REL 14
Study on Control and User Plane Separation of EPC Nodes
TR 23.715
REL 16
Study on System enhancements for Provision of Access to Restricted Local Operator Services by an Unauthenticated UE
TR 23.716
REL 16
Study on the Wireless and Wireline Convergence for the 5G System Architecture
TR 23.718
REL 13
Architecture enhancement for Flexible Mobile Service Steering
TR 23.719
REL 14
Feasibility Study on Service Domain Centralization
TR 23.720
REL 13
Study on Architecture enhancements for Cellular Internet of Things
TR 23.721
REL 14
Study on Sponsored Data Connectivity Improvements
TR 23.722
REL 15
Study on Common API Framework for 3GPP Northbound APIs
TR 23.724
REL 16
Study on CIoT support and Evolution for the 5GS
TR 23.725
REL 16
Study on enhancement of URLLC support in the 5GC
TR 23.726
REL 16
Study on enhancing Topology of SMF and UPF in 5G Networks
TR 23.729
REL 15
Study on Unlicensed Spectrum Offloading System enhancements
TR 23.730
REL 14
Study on Extended Architecture support for Cellular Internet of Things
TR 23.731
REL 16
Study on enhancement to the 5GC LoCation Services
TR 23.732
REL 16
Study on User data Interworking, Coexistence and Migration
TR 23.733
REL 15
Study on Architecture enhancements to ProSe UE-to-Network Relay
TR 23.734
REL 16
Study on enhancement of 5GS for Vertical and LAN Services
TR 23.735
REL 16
Study on enhancements of Public Warning System
TR 23.737
REL 17
Study on Architecture aspects for using Satellite Access in 5G
TR 23.740
REL 16
Study on enhancement of Network Slicing
TR 23.741
REL 13
Study on enhancements to MBMS for LTE
TR 23.742
REL 16
Study on enhancements to the Service-Based Architecture
TR 23.743
REL 16
Study on Optimisations on UE radio capability signalling
TR 23.744
REL 17
Study on Location enhancements for Mission Critical Services
TR 23.745
REL 17
Study on application layer support for Factories of the Future in 5G network
TR 23.746
REL 14
Study on System Architecture enhancements to eMBMS for Television Video Service
TR 23.748
REL 17
Study on enhancement of support for Edge Computing in 5GC
TR 23.749
REL 14
Study on S8 Home Routing Architecture for VoLTE
TR 23.750
REL 14
Study for Robust Call Setup for VoLTE Subscriber in LTE
TR 23.751
REL 15
Study on support of Voice over WLAN
TR 23.752
REL 17
Study on system enhancement for Proximity based Services (ProSe) in the 5GS
TR 23.754
REL 17
Study on supporting Unmanned Aerial Systems (UAS) connectivity, Identification and tracking
TR 23.755
REL 17
Study on application layer support for Unmanned Aerial Systems (UAS)
TR 23.756
REL 16
Study for Single Radio Voice Continuity from 5G to 3G
TR 23.757
REL 17
Study on architectural enhancements for 5G Multicast-Broadcast services
TR 23.758
REL 17
Study on Application Architecture for enabling Edge Applications
TR 23.759
REL 15
Study for enhanced VoLTE Performance
TR 23.761
REL 17
Study on System Enablers for Devices having multiple USIM
TR 23.764
REL 17
Study on enhancements to Application layer support for V2X services
TR 23.768
REL 12
Study on Architecture enhancements to Support Group Communication System Enablers for LTE
TR 23.769
REL 13
Group based enhancements
TR 23.770
REL 13
Study on System impacts of extended Discontinuous Reception (DRX) Cycle for Power Consumption Optimization
TR 23.771
REL 13
Study on System impacts of IMS Emergency Sessions over WLAN
TR 23.773
REL 14
Study on extension in the Group based enhancements in the Network Capability Exposure functions
TR 23.774
REL 17
Study on Mission Critical Services over 5G Multicast Broadcast System
TR 23.776
REL 17
Study on architecture enhancements for 3GPP support of advanced Vehicle-to-Everything (V2X) services; Phase 2
TR 23.778
REL 16
Study on Mission Critical Services Access aspects
TR 23.779
REL 13
Study on Application Architecture to support MCPTT Services
TR 23.780
REL 14
Study on MBMS usage for Mission Critical Communication Services
TR 23.781
REL 15
Study on Migration and Interconnection for Mission Critical Services
TR 23.782
REL 15
Study on Mission Critical Communication Interworking between LTE and non-LTE systems
TR 23.783
REL 18
Study on Mission Critical services support over the 5G System
TR 23.784
REL 16
Study on Discreet Listening and Logging for Mission Critical Services
TR 23.785
REL 14
Study on Architecture enhancements for LTE support of V2X Services
TR 23.786
REL 16
Study on Architecture enhancements for EPS and 5G System to support advanced V2X Services
TR 23.789
REL 13
Monitoring enhancements
TR 23.790
REL 15
Study on Application Architecture for the Future Railway Mobile Communication System (FRMCS)
TR 23.791
REL 16
Study of Enablers for Network Automation for 5G
TR 23.792
REL 16
Study on MBMS APIs for Mission Critical Services
TR 23.793
REL 16
Study on Access Traffic Steering, Switch and Splitting support in the 5G System Architecture
TR 23.794
REL 17
Study on Enhanced IMS to 5GC Integration
TR 23.795
REL 16
Study on Application Layer support for V2X Services
TR 23.796
REL 16
Study on Application Architecture for the FRMCS Phase 2
TR 23.797
REL 13
Study on Architecture enhancements to support Isolated E-UTRAN Operation for Public Safety
TR 23.798
REL 15
Study on enhancements to Isolated E-UTRAN Operation for Public Safety
TR 23.799
REL 14
Study on Architecture for Next Generation System
TR 23.800
REL 12
Study on Application Based Charging (ABC)
TR 23.802
REL 7
Architectural enhancements for end-to-end QoS
TR 23.804
REL 7
Support of SMS and MMS over Generic 3GPP IP Access
TR 23.806
REL 7
Voice Call Continuity between CS and IMS Study
TR 23.810
REL 8
Study on Architecture impacts of Service Brokering
TR 23.811
REL 8
Service Level Interworking for Messaging Services
TR 23.812
REL 11
Feasibility Study on IMS evolution
TR 23.813
REL 11
Study on Policy Solutions and Enhancements
TR 23.814
REL 3
Separating RR and MM Specific Parts of the MS Classmark
TR 23.815
REL 5
Charging Implications of IMS Architecture
TR 23.816
REL 7
Identification of Communication Services in IMS
TR 23.820
REL 8 → 9
Study of IMS Restoration Procedures
TR 23.824
REL 10
IP-SM-GW enhancements for Interworking with OMA Converged IP Messaging
TR 23.826
REL 9
Feasibility Study on VCC support for Emergency Calls
TR 23.828
REL 8
ETWS Requirements and Solutions
TR 23.829
REL 10
Local IP Access and Selected IP Traffic Offload (LIPA-SIPTO)
TR 23.830
REL 9
Architecture aspects of HNB/HeNB
TR 23.831
REL 10
IMS Service Continuity – Inter-UE Transfer enhancements
TR 23.832
REL 10
IMS aspects of Architecture for HNB
TR 23.834
REL 10
Study on GTP-based S2b
TR 23.838
REL 9
IMS Service Continuity enhancements – Service, Policy and Interaction
TR 23.839
REL 12
Study on support of Broadband Forum (BBF) Access Interworking
TR 23.840
REL 7
Study into Routeing of MT-SMs via the HPLMN
TR 23.841
REL 6
Presence Service Architecture
TR 23.842
REL 11
Study on Network provided Location Information to the IMS
TR 23.843
REL 12
Study on Core Network Overload (CNO) Solutions
TR 23.844
REL 12
Feasibility Study on IMS Based Peer-to-Peer Content Distribution Services
TR 23.845
REL 10
Study on User Data Convergence (UDC) Evolution
TR 23.846
REL 6
Multimedia Broadcast/Multicast Service (MBMS)
TR 23.847
REL 8
Enhancements to IMS Service Functionalities Facilitating Multicast Bearer Services
TR 23.849
REL 11
Study on Stage 2 aspects of OSCAR in the IMS whilst Roaming
TR 23.850
REL 11
Study on Roaming Architecture for Voice over IMS with Local Breakout
TR 23.851
REL 6
Network Sharing – Architecture and Functional Description
TR 23.852
REL 12
Study on S2a Mobility based on GTP and WLAN Access to the EPC network (SaMOG)
TR 23.853
REL 12
Operator Policies for IP Interface Selection (OPIIS)
TR 23.854
REL 11
Enhancements for Multimedia Priority Service (MPS)
TR 23.855
REL 11
Data Identification in Access Network Discovery and Selection Function (ANDSF) (DIDA)
TR 23.856
REL 10
Single Radio Voice Call Continuity (SRVCC) Enhancements
TR 23.857
REL 11
Study of EPC Nodes Restoration
TR 23.858
REL 13
Usage Monitoring Control PCC Enhancement
TR 23.859
REL 12
LIPA Mobility and SIPTO at the Local Network
TR 23.860
REL 10
Enabling Coder Selection and Rate Adaptation for UTRAN and E-UTRAN for Load Adaptive Applications
TR 23.861
REL 13
Network based IP Flow Mobility
TR 23.862
REL 12
EPC enhancements to support Interworking with Data Application Providers
TR 23.863
REL 12
Support of SMS in IMS without MSISDN
TR 23.865
REL 12
WLAN Network Selection for 3GPP Terminals
TR 23.866
REL 12
System improvements for Energy Efficiency
TR 23.867
REL 7
IP-based IMS Emergency Sessions
TR 23.868
REL 9
Feasibility Study on Extension of Support for IMS Emergency Calls
TR 23.869
REL 9
Support for IP based IMS Emergency Calls over GPRS and EPS
TR 23.870
REL 9
Single Radio Voice Call Continuity (SR-VCC) support for IMS Emergency Calls
TR 23.871
REL 5
Enhanced support for User Privacy in Location Services (LCS)
TR 23.872
REL 8
Study on Architecture of IMS based Customized Alerting Tone (CAT)
TR 23.873
REL 4
Feasibility Study for Transport and Control Separation in the PS CN Domain
TR 23.875
REL 5
Support of Push Service
TR 23.877
REL 6
Architectural aspects of Speech-enabled Services
TR 23.879
REL 9
Study on CS Domain Services over Evolved PS Access
TR 23.882
REL 8
3GPP SAE: Report on Technical Options and Conclusions
TR 23.883
REL 9
Study on enhancements to IMS Centralized Services (ICS)
TR 23.885
REL 11
Feasibility Study of SRVCC from UTRAN/GERAN to E-UTRAN/HSPA
TR 23.886
REL 10
Feasibility Study of Single Radio Video Call Continuity (vSRVCC)
TR 23.887
REL 12
Study on MTC and other Mobile Data Applications Communications enhancements
TR 23.888
REL 11
System improvements for Machine-Type Communications (MTC)
TR 23.889
REL 10
Local Call Local Switch (LCLS) System impacts – Feasibility study
TR 23.890
REL 12
Optimized Offloading to WLAN in 3GPP RAT Mobility
TR 23.891
REL 9
Evaluation of LCS Control Plane Solutions for EPS
TR 23.892
REL 8
IMS Centralized Services
TR 23.893
REL 8
Feasibility Study on Multimedia Session Continuity
TR 23.894
REL 10
System enhancements for the use of IMS Services in Local Breakout and Optimal Routeing of Media
TR 23.895
REL 6
Provision of UE Specific Behaviour Information to Network Entities
TR 23.896
REL 12
Support for Fixed Broadband Access Networks Convergence
TR 23.897
REL 12
Feasibility Study on IMS Business Trunking for IP-PBX in Static Mode of Operation
TR 23.898
REL 7
Access Class Barring and Overload Protection (ACBOP)
TR 23.903
REL 6 → 18
Redial Solution for Voice-Video Switching
TR 23.908
REL 3 → 4
Pre-Paging
TR 23.909
REL 3 → 4
Gateway Location Register
TR 23.910
REL 3 → 5
Circuit Switched Data Bearer Services
TR 23.911
REL 3 → 4
Out-of-Band Transcoder Control
TR 23.912
REL 3 → 4
Super-Charger
TR 23.919
REL 7 → 18
Direct Tunnel Deployment Guideline
TR 23.923
REL 3
Combined GSM and Mobile IP Mobility Handling in UMTS IP CN
TR 23.924
REL 10 → 18
Feasibility Study on Non-Access Stratum (NAS) Node Selection Function above BSC/RNC
TR 23.930
REL 3 → 4
Iu Principles
TR 23.941
REL 6
GUP — Data Description Method (DDM)
TR 23.958
REL 18
Edge Application Standards in 3GPP and Alignment with External Organizations
TR 23.972
REL 3
CS Multimedia Telephony
TR 23.973
REL 16 → 18
User Data Interworking, Coexistence and Migration
TR 23.975
REL 11 → 18
IPv6 Migration Guidelines
TR 23.976
REL 6 → 18
Push Architecture
TR 23.977
REL 6 → 18
Bandwidth And Resource Savings (BARS) and Speech enhancements for CS Networks
TR 23.979
REL 6 → 18
PoC Services
TR 23.981
REL 5 → 18
Interworking Aspects and Migration Scenarios for IPv4 based IMS Implementations