3GPP 29-series — Intra-Fixed-Network Signalling Protocols – Stage 3
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 29-series documents introduced at each 3GPP quarterly Plenary Meeting
TS 29.002
REL 3 → 18
MAP — Mobile Application Part
TS 29.007
REL 3 → 18
General Requirements on Interworking
between the PLMN and the ISDN or PSTN
between the PLMN and the ISDN or PSTN
TS 29.010
REL 3 → 18
Information Element Mapping
between MS-BSS and BSS-MSC
between MS-BSS and BSS-MSC
TS 29.011
REL 3 → 18
Signalling Interworking
for Supplementary Services
for Supplementary Services
TS 29.013
REL 3 → 18
Signalling Interworking
between ISDN Supplementary Services
ASE and MAP protocols
between ISDN Supplementary Services
ASE and MAP protocols
TS 29.016
REL 3 → 18
SGSN-VLR Gs Interface
Network Service specification
Network Service specification
TS 29.018
REL 3 → 18
SGSN-VLR Gs Interface
Layer 3 specification
Layer 3 specification
TS 29.060
REL 3 → 18
GTP across the Gn and Gp Interface
TS 29.061
REL 3 → 18
Interworking between
the PLMN supporting Packet-based Services
and PDNs
TS 29.078
REL 3 → 18
CAMEL Phase X –
CAP specification
CAP specification
TS 29.079
REL 10 → 18
Optimal Media Routeing
within the IMS
within the IMS
TS 29.108
REL 3 → 18
Application of RANAP on the E-interface
TS 29.109
REL 6 → 18
GAA — Zh and Zn interfaces based on Diameter
TS 29.116
REL 14 → 18
Representational State Transfer
over xMB reference point
between Content Provider and BM-SC
over xMB reference point
between Content Provider and BM-SC
TS 29.118
REL 8 → 18
MME-VLR SGs Interface Specification
TS 29.119
REL 3 → 18
GTP Specification for GLR
TS 29.120
REL 3 → 18
MAP specification for GLR
TS 29.122
REL 15 → 18
T8 Reference Point
for Northbound APIs
for Northbound APIs
TS 29.128
REL 13 → 18
MME and SGSN interfaces
for Interworking with Packet Data Networks and Applications
for Interworking with Packet Data Networks and Applications
TS 29.139
REL 11 → 18
3GPP System /
Fixed Broadband Access Network Interworking –
H(e)NB-SeGW interface
Fixed Broadband Access Network Interworking –
H(e)NB-SeGW interface
TS 29.140
REL 6
MMS —
MM10 interface based on Diameter protocol
MM10 interface based on Diameter protocol
TS 29.153
REL 13 → 18
Service Exposure Functionality
between SCEF and RCAF Reference Point
between SCEF and RCAF Reference Point
TS 29.154
REL 13 → 18
Service Capability Exposure Functionality
over Nt Reference Point
over Nt Reference Point
TS 29.155
REL 13 → 18
Traffic Steering Control –
Representational State Transfer (REST)
over St reference point
Representational State Transfer (REST)
over St reference point
TS 29.161
REL 6 → 11
Interworking between PLMN supporting Packet Based Services
with WLAN and PDNs
with WLAN and PDNs
TS 29.162
REL 6 → 18
Interworking between IMS and IP Networks
TS 29.163
REL 6 → 18
Interworking between IMS and CS Networks
TS 29.164
REL 7 → 18
Interworking between 3GPP CS Domain with BICC/ISUP
and external SIP-I Networks
and external SIP-I Networks
TS 29.165
REL 8 → 18
Inter-IMS Network to Network Interface (NNI)
TS 29.168
REL 8 → 18
Cell Broadcast Centre interfaces with the Evolved Packet Core
TS 29.171
REL 9 → 18
LCS-AP between MME and E-SMLC –
SLs interface
SLs interface
TS 29.172
REL 9 → 18
EPC LCS Protocol ELP between GMLC and MME –
SLg interface
SLg interface
TS 29.173
REL 9 → 18
Diameter-based SLh interface
for Control Plane LCS
for Control Plane LCS
TS 29.175
REL 18
IMS Application Server (AS) Services
TS 29.176
REL 18
IMS Media Function (MF) Services
Open Service Access (OSA) API
Open Service Access (OSA) Parlay X Web Services
TS 29.201
REL 12 → 18
PCC REST-Rx
Reference Point
Reference Point
TS 29.202
REL 4 → 18
SS7 Signalling Transport
in Core Network
in Core Network
TS 29.204
REL 7 → 18
SS7 Security Gateway –
Architecture, Functional Description and Protocol Details
Architecture, Functional Description and Protocol Details
TS 29.205
REL 4 → 18
Application of Q.1900 series
to Bearer Independent CS Core Network Architecture
to Bearer Independent CS Core Network Architecture
TS 29.207
REL 5 → 6
Policy Control over Go interface
(replaced by TS 29.212 from Rel‑7)
(replaced by TS 29.212 from Rel‑7)
TS 29.208
REL 5 → 6
End-to-End QoS signalling flows
(replaced by TS 29.213 from Rel‑7)
(replaced by TS 29.213 from Rel‑7)
TS 29.209
REL 6
Policy control over Gq interface
(replaced by TS 29.214 from Rel‑7)
(replaced by TS 29.214 from Rel‑7)
TS 29.210
REL 6
Charging Rule Provisioning over Gx interface
(replaced by TS 29.212 from Rel‑7)
(replaced by TS 29.212 from Rel‑7)
TS 29.211
REL 6
Rx interface and Rx/Gx Signalling Flows
(replaced by TS 29.213 and .214 from Rel‑7)
(replaced by TS 29.213 and .214 from Rel‑7)
TS 29.212
REL 7 → 18
PCC Reference Points: Gx, Gxx, Sd
TS 29.213
REL 7 → 18
PCC Signalling Flows and QoS Parameter Mapping
TS 29.214
REL 7 → 18
PCC over Rx Reference Point
TS 29.215
REL 8 → 18
PCC over S9 Reference Point
TS 29.217
REL 13 → 18
PCC: Congestion Reporting over Np Reference Point
TS 29.219
REL 11 → 18
PCC: Spending Limit Reporting over Sy Reference Point
TS 29.222
REL 15 → 18
Common API Framework for 3GPP Northbound APIs
TS 29.228
REL 5 → 18
Cx and Dx interfaces –
Signalling Flows and Message Contents
Signalling Flows and Message Contents
TS 29.229
REL 5 → 18
Cx and Dx interfaces –
Diameter Protocol Details
Diameter Protocol Details
TS 29.230
REL 6 → 18
Diameter Applications –
3GPP Specific Codes and Identifiers
3GPP Specific Codes and Identifiers
TS 29.231
REL 8 → 18
Application of SIP-I Protocols
to CS Core Network Architecture
to CS Core Network Architecture
TS 29.232
REL 4 → 18
MGC-MGW Interface
TS 29.234
REL 6 → 11
I-WLAN –
3GPP System to WLAN Interworking
3GPP System to WLAN Interworking
TS 29.235
REL 8 → 18
Interworking
between SIP-I based CS Core Network
and other Networks
between SIP-I based CS Core Network
and other Networks
TS 29.238
REL 9 → 18
IBCF-TrGW Ix Interface
TS 29.240
REL 6 → 18
GUP — Generic User Profile
TS 29.244
REL 14 → 18
Interface between the Control Plane and the User Plane Nodes
TS 29.250
REL 14 → 18
Nu Reference Point between SCEF and PFDF
for Sponsored Data Connectivity
for Sponsored Data Connectivity
TS 29.251
REL 14 → 18
Gw and Gwn Reference Point
for Sponsored Data Connectivity
for Sponsored Data Connectivity
TS 29.255
REL 17 → 18
Uncrewed Aerial System Service Supplier (USS) Services
TS 29.256
REL 17 → 18
Uncrewed Aerial Systems Network Function (UAS-NF);
Aerial Management Services
Aerial Management Services
TS 29.257
REL 17 → 18
Application layer support for Uncrewed Aerial System (UAS);
UAS Application Enabler (UAE) Server Services
UAS Application Enabler (UAE) Server Services
TS 29.272
REL 8 → 18
MME and SGSN related interfaces based on Diameter Protocol
TS 29.273
REL 8 → 18
EPS AAA Interfaces
TS 29.274
REL 8 → 18
GTPv2-C — Evolved GPRS Tunnelling Protocol (eGTP) for EPS
TS 29.275
REL 8 → 18
Proxy Mobile IPv6 (PMIPv6) based Mobility and Tunnelling protocols
TS 29.276
REL 8 → 18
Optimized Handover Procedures and Protocols
between E-UTRAN
and cdma2000 HRPD
between E-UTRAN
and cdma2000 HRPD
TS 29.277
REL 8 → 18
Optimized Handover Procedures and Protocols
between E-UTRAN
and 1xRTT
between E-UTRAN
and 1xRTT
TS 29.278
REL 5 → 18
CAMEL Phase 4 —
CAMEL Application Part (CAP) specification for IMS
CAMEL Application Part (CAP) specification for IMS
TS 29.279
REL 8 → 18
Mobile IPv4 (MIPv4) based Mobility Protocols
TS 29.280
REL 8 → 18
3GPP EPS Sv Interface (MME to MSC) for SRVCC
TS 29.281
REL 8 → 18
GPRS Tunnelling Protocol for User Plane (GTPv1-U)
TS 29.282
REL 8 → 18
Mobile IPv6 Vendor Specific Option Format and Usage within 3GPP
TS 29.283
REL 13 → 18
MCPTT — Diameter Data Management Applications
TS 29.292
REL 8 → 18
ICS — Interworking between IMS and MSC Server
TS 29.303
REL 8 → 18
DNS Procedures for EPS
TS 29.305
REL 8 → 18
InterWorking Function (IWF)
between MAP based
and Diameter based Interfaces
between MAP based
and Diameter based Interfaces
TS 29.309
REL 17 → 18
Bootstrapping Server Function (GBA BSF) Services
TS 29.311
REL 8 → 18
Service Level Interworking
for Messaging Services
for Messaging Services
TS 29.328
REL 5 → 18
Sh interface –
Signalling Flows and Message Contents
Signalling Flows and Message Contents
TS 29.329
REL 5 → 18
Sh interface –
Diameter Protocol Details
Diameter Protocol Details
TS 29.330
REL 18
IMS Sc Interface based on the Diameter protocol
TS 29.332
REL 6 → 18
MGCF-(IM)MGW
Mn Interface
Mn Interface
TS 29.333
REL 7 → 18
MRFC-MRFP
Mp Interface
Mp Interface
TS 29.334
REL 9 → 18
IMS ALGCF — IMS Access Media Gateway (IMA-MGW)
Iq Interface
Iq Interface
TS 29.335
REL 9 → 18
User Data Convergence (UDC) –
User Data Repository Access Protocol
over the Ud Interface
User Data Repository Access Protocol
over the Ud Interface
TS 29.336
REL 11 → 18
HSS Diameter Interfaces
for Interworking with Packet Data Networks and Applications
for Interworking with Packet Data Networks and Applications
TS 29.337
REL 11 → 18
Diameter based T4 Interface
for Communications with Packet Data Networks and Applications
for Communications with Packet Data Networks and Applications
TS 29.338
REL 11 → 18
Diameter based Protocols
for support of SMS capable MMEs
for support of SMS capable MMEs
TS 29.343
REL 12 → 18
Prose Function
to ProSe Application Server
aspect (PC2)
to ProSe Application Server
aspect (PC2)
TS 29.344
REL 12 → 18
ProSe Function
to HSS aspects
to HSS aspects
TS 29.345
REL 12 → 18
Inter-Prose Function
Signalling aspects
Signalling aspects
TS 29.364
REL 8 → 18
IMS Application Server Service Data Descriptions
for AS interoperability
for AS interoperability
TS 29.368
REL 11 → 18
Tsp Interface
between the MTC Interworking Function
and an MTC Server outside the 3GPP Network
between the MTC Interworking Function
and an MTC Server outside the 3GPP Network
TS 29.379
REL 16 → 18
MCPTT Call Control Interworking with LMR Systems
TS 29.380
REL 16 → 18
MCPTT Media Plane Control Interworking with LMR Systems
TS 29.388
REL 14 → 18
V2X Control Function to HSS aspects (V4)
TS 29.389
REL 14 → 18
Inter-V2X Control Function Signalling aspects (V6)
TS 29.405
REL 13 → 18
Nq and Nq' Application Protocol (Nq-AP)
TS 29.412
REL 7 → 8
TISPAN — Trunking Gateway Control Procedures
TS 29.413
REL 15 → 18
Application of the NG Application Protocol (NGAP) to non-3GPP access
TS 29.414
REL 4 → 18
Core Network Nb Data Transport and Transport Signalling
TS 29.415
REL 4 → 18
Core Network Nb Interface User Plane Protocols
TS 29.421
REL 7 → 8
TISPAN — Endorsement of 3GPP TS 29.162
TS 29.424
REL 7 → 8
TISPAN — H.248 Profile for controlling Trunking Media Gateways
TS 29.427
REL 7
TISPAN — Endorsement of 3GPP TS 29.163
TS 29.433
REL 7 → 8
TISPAN — Endorsement of 3GPP TS 29.228 and 29.229
TS 29.435
REL 18
Service Enabler Architecture Layer for Verticals (SEAL)
Network Slice Capability Enablement (NSCE) Server Services
Network Slice Capability Enablement (NSCE) Server Services
TS 29.458
REL 8
TISPAN — SIP Transfer of IP Multimedia Service Tariff Information
TS 29.468
REL 12 → 18
Group Communication System Enablers for LTE (GCSE_LTE) –
MB2 Reference Point
MB2 Reference Point
TS 29.486
REL 16 → 18
Vehicle-to-Everything (V2X) Application Enabler (VAE) service
TS 29.500
REL 15 → 18
5G System (5GS) —
Technical Realization of
Service Based Architecture
Technical Realization of
Service Based Architecture
TS 29.501
REL 15 → 18
5G System (5GS) —
Principles and Guidelines
for Services Definition
Principles and Guidelines
for Services Definition
TS 29.502
REL 15 → 18
5G System (5GS) —
Session Management Services
→ Nsmf
Session Management Services
→ Nsmf
TS 29.503
REL 15 → 18
5G System (5GS) —
Unified Data Management Services
→ Nudm
Unified Data Management Services
→ Nudm
TS 29.504
REL 15 → 18
5G System (5GS) —
Unified Data Repository Services
→ Nudr
Unified Data Repository Services
→ Nudr
TS 29.505
REL 15 → 18
5G System (5GS) —
Usage of the UDR services for Subscription Data
→ Nudr
Usage of the UDR services for Subscription Data
→ Nudr
TS 29.507
REL 15 → 18
5G System (5GS) —
Access and Mobility Policy Control Services
→ Npcf
Access and Mobility Policy Control Services
→ Npcf
TS 29.508
REL 15 → 18
5G System (5GS) —
Session Management Event Exposure Service
→ Nsmf
Session Management Event Exposure Service
→ Nsmf
TS 29.509
REL 15 → 18
5G System (5GS) —
Authentication Server Services
→ Nausf
Authentication Server Services
→ Nausf
TS 29.510
REL 15 → 18
5G System (5GS) —
NF Repository Services
→ Nnrf
NF Repository Services
→ Nnrf
TS 29.511
REL 15 → 18
5G System (5GS) —
Equipment Identity Register Services
→ N5g-eir
Equipment Identity Register Services
→ N5g-eir
TS 29.512
REL 15 → 18
5G System (5GS) —
Session Management Policy Control Services
→ Npcf
Session Management Policy Control Services
→ Npcf
TS 29.513
REL 15 → 18
5G System (5GS) —
Policy and Charging Control
Signalling Flows and QoS Parameter Mapping
Policy and Charging Control
Signalling Flows and QoS Parameter Mapping
TS 29.514
REL 15 → 18
5G System (5GS) —
Policy Authorization Services
→ Npcf
Policy Authorization Services
→ Npcf
TS 29.515
REL 16 → 18
5G System (5GS) —
Gateway Mobile Location Services
→ Ngmlc
Gateway Mobile Location Services
→ Ngmlc
TS 29.517
REL 16 → 18
5G System (5GS) —
Application Function (AF) event exposure service
→ Naf
Application Function (AF) event exposure service
→ Naf
TS 29.518
REL 15 → 18
5G System (5GS) —
Access and Mobility Management Services
→ Namf
Access and Mobility Management Services
→ Namf
TS 29.519
REL 15 → 18
5G System (5GS) —
Usage of the UDR Service for Policy Control Data and Structured Data
→ Nudr
Usage of the UDR Service for Policy Control Data and Structured Data
→ Nudr
TS 29.520
REL 15 → 18
5G System (5GS) —
Network Data Analytics Services
→ Nnwadf
Network Data Analytics Services
→ Nnwadf
TS 29.521
REL 15 → 18
5G System (5GS) —
Binding Support Management Service
→ Nbsf
Binding Support Management Service
→ Nbsf
TS 29.522
REL 15 → 18
5G System (5GS) —
Network Exposure Function Northbound APIs
→ Nnef
Network Exposure Function Northbound APIs
→ Nnef
TS 29.523
REL 15 → 18
5G System (5GS) —
Policy Control Event Exposure Service
→ Npcf
Policy Control Event Exposure Service
→ Npcf
TS 29.524
REL 15 → 18
5G System (5GS) —
Cause Code Mapping between 5GC Interfaces
Cause Code Mapping between 5GC Interfaces
TS 29.525
REL 15 → 18
5G System (5GS) —
UE Policy Control Service
→ Npcf
UE Policy Control Service
→ Npcf
TS 29.526
REL 16 → 18
5G System (5GS) —
Network Slice-Specific Authentication and Authorization (NSSAA) services
→ Nssaaf
Network Slice-Specific Authentication and Authorization (NSSAA) services
→ Nssaaf
TS 29.527
REL 8
TISPAN — Endorsement of 3GPP TS 29.163
TS 29.531
REL 15 → 18
5G System (5GS) —
Network Slice Selection Services
→ Nnssf
Network Slice Selection Services
→ Nnssf
TS 29.532
REL 17 → 18
5G System (5GS) —
5G Multicast-Broadcast Session Management Services
5G Multicast-Broadcast Session Management Services
TS 29.534
REL 17 → 18
5G System (5GS) —
Access and Mobility Policy Authorization Service
Access and Mobility Policy Authorization Service
TS 29.535
REL 17 → 18
5G System (5GS) —
AKMA Anchor Services
AKMA Anchor Services
TS 29.536
REL 17 → 18
5G System (5GS) —
Network Slice Admission Control Services
Network Slice Admission Control Services
TS 29.537
REL 17 → 18
5G System (5GS) —
Multicast/Broadcast Policy Control services
Multicast/Broadcast Policy Control services
TS 29.538
REL 17 → 18
Enabling MSGin5G Service; API specification
TS 29.540
REL 15 → 18
5G System (5GS) —
SMS Services
→ Nsmsf
SMS Services
→ Nsmsf
TS 29.541
REL 16 → 18
5G System (5GS) —
Network Exposure (NE) function services for Non-IP Data Delivery (NIDD)
→ Nnef
Network Exposure (NE) function services for Non-IP Data Delivery (NIDD)
→ Nnef
TS 29.542
REL 16 → 18
5G System (5GS) —
Session management services for Non-IP Data Delivery (NIDD)
→ Nsmf
Session management services for Non-IP Data Delivery (NIDD)
→ Nsmf
TS 29.543
REL 18
5G System (5GS) —
Data Transfer Policy Control Services
Data Transfer Policy Control Services
TS 29.544
REL 16 → 18
5G System (5GS) —
Secured Packet Application Function (SP-AF) services
→ Nspaf
Secured Packet Application Function (SP-AF) services
→ Nspaf
TS 29.548
REL 18
Service Enabler Architecture Layer for Verticals (SEAL) —
SEAL Data Delivery (SEALDD) Server Services
SEAL Data Delivery (SEALDD) Server Services
TS 29.549
REL 16 → 18
Service Enabler Architecture Layer for Verticals (SEAL) —
Application Programming Interface (API) specification
Application Programming Interface (API) specification
TS 29.550
REL 16 → 18
5G System (5GS) —
Steering of roaming application function services
→ Nsoraf
Steering of roaming application function services
→ Nsoraf
TS 29.551
REL 15 → 18
5G System (5GS) —
Packet Flow Description Management Service
Packet Flow Description Management Service
TS 29.552
REL 17 → 18
5G System (5GS) —
Network Data Analytics signalling flows
Network Data Analytics signalling flows
TS 29.553
REL 17 → 18
5G System (5GS) —
5G ProSe Anchor Services
5G ProSe Anchor Services
TS 29.554
REL 15 → 18
5G System (5GS) —
Background Data Transfer Policy Control Service
Background Data Transfer Policy Control Service
TS 29.555
REL 17 → 18
5G System (5GS) —
5G Direct Discovery Name Management Services
5G Direct Discovery Name Management Services
TS 29.556
REL 17 → 18
Edge Application Server Discovery Services
TS 29.557
REL 17 → 18
5G System (5GS) —
Application Function ProSe Service
Application Function ProSe Service
TS 29.558
REL 17 → 18
Enabling Edge Applications —
API specification
API specification
TS 29.559
REL 17 → 18
5G System (5GS) —
5G ProSe Key Management Services
5G ProSe Key Management Services
TS 29.561
REL 15 → 18
5G System (5GS) —
Interworking between 5G Network
and External Data Networks
Interworking between 5G Network
and External Data Networks
TS 29.562
REL 16 → 18
5G System (5GS) —
HSS services for interworking with the IMS
→ Nhss
HSS services for interworking with the IMS
→ Nhss
TS 29.563
REL 16 → 18
5G System (5GS) —
HSS services for interworking with UDM
→ Nhss
HSS services for interworking with UDM
→ Nhss
TS 29.564
REL 17 → 18
5G System (5GS) —
User Plane Function Services
User Plane Function Services
TS 29.565
REL 17 → 18
5G System (5GS) —
Time Sensitive Communication and Time Synchronization Function Services
Time Sensitive Communication and Time Synchronization Function Services
TS 29.571
REL 15 → 18
5G System (5GS) —
Common Data Types
for Service Based Interfaces
Common Data Types
for Service Based Interfaces
TS 29.572
REL 15 → 18
5G System (5GS) —
Location Management Services
→ Nlmf
Location Management Services
→ Nlmf
TS 29.573
REL 15 → 18
5G System (5GS) —
PLMN Interconnection
PLMN Interconnection
TS 29.574
REL 17 → 18
5G System (5GS) —
Data Collection Coordination Services
Data Collection Coordination Services
TS 29.575
REL 17 → 18
5G System (5GS) —
Analytics Data Repository Services
Analytics Data Repository Services
TS 29.576
REL 17 → 18
5G System (5GS) —
Messaging Framework Adaptor Services
Messaging Framework Adaptor Services
TS 29.577
REL 17 → 18
5G System (5GS) —
IP Short Message Gateway and SMS Router For Short Message Services
IP Short Message Gateway and SMS Router For Short Message Services
TS 29.578
REL 17 → 18
5G System (5GS) —
Mobile Number Portability Services
Mobile Number Portability Services
TS 29.579
REL 17 → 18
5G System (5GS) —
Interworking MSC For Short Message Services
Interworking MSC For Short Message Services
TS 29.580
REL 17 → 18
5G System (5GS) —
Multicast/Broadcast Service Function services
Multicast/Broadcast Service Function services
TS 29.581
REL 17 → 18
5G System (5GS) —
Multicast/Broadcast Service Transport Services
Multicast/Broadcast Service Transport Services
TS 29.582
REL 16 → 18
5G System (5GS) —
MCData interworking with Land Mobile Radio (LMR) systems
MCData interworking with Land Mobile Radio (LMR) systems
TS 29.583
REL 18
Application layer support for Personal IoT Network (PINAPP)
Personal IoT Network (PIN) server services
Personal IoT Network (PIN) server services
TS 29.585
REL 18
5G System (5GS) —
Session Management Function (SMF) / Centralized User Configuration (CUC) to
Access Network Talker Listener (AN-TL) and Core Network Talker Listener (CN-TL) protocol aspects
Session Management Function (SMF) / Centralized User Configuration (CUC) to
Access Network Talker Listener (AN-TL) and Core Network Talker Listener (CN-TL) protocol aspects
TS 29.586
REL 18
5G System (5GS) —
SideLink Positioning Key Management Services
SideLink Positioning Key Management Services
TS 29.591
REL 16 → 18
5G System (5GS) —
Network Exposure Function Southbound Services
→ Nnef
Network Exposure Function Southbound Services
→ Nnef
TS 29.594
REL 15 → 18
5G System (5GS) —
Spending Limit Control Service
→ Nchf
Spending Limit Control Service
→ Nchf
TS 29.598
REL 16 → 18
5G System (5GS) —
Unstructured data storage services
→ Nudsf
Unstructured data storage services
→ Nudsf
TS 29.641
REL 17 → 18
3GPP Registry for Service Names and Port Numbers
TS 29.658
REL 8 → 18
SIP Transfer of IP Multimedia Service Tariff Information
TS 29.673
REL 16 → 18
5G System (5GS) —
UE radio capability management services;
→ Nucmf
UE radio capability management services;
→ Nucmf
TS 29.674
REL 16 → 18
Interface between the UCMF and the MME
TS 29.675
REL 16 → 18
UE radio capability provisioning service
→ Nucmf
→ Nucmf
TR 29.800
REL 7
SS7 Security Gateway –
Architecture, Functional Description and Protocol Details
Architecture, Functional Description and Protocol Details
TR 29.801
REL 7
Feasibility Study of using M2PA in 3GPP Networks
TR 29.802
REL 7
(G)MSC-S – (G)MSC-S
Nc Interface
based on the SIP-I protocol
Nc Interface
based on the SIP-I protocol
TR 29.804
REL 8
3GPP System Architecture Evolution (SAE)
CT WG3 aspects
CT WG3 aspects
TR 29.805
REL 8
InterWorking Function (IWF)
between MAP based
and Diameter based Interfaces
between MAP based
and Diameter based Interfaces
TR 29.806
REL 12
Study on IMS P-CSCF Restoration Procedures
TR 29.807
REL 12
Study on GTP-C Overload Control Mechanisms
TR 29.808
REL 16
Study on the Nudsf Service Based Interface
TR 29.809
REL 12
Study on Diameter Overload Control Mechanisms
TR 29.810
REL 13
Study on Diameter Load Control mechanisms
TR 29.811
REL 13
Study on EPC Signalling Improvements for Race Scenarios
TR 29.812
REL 13
Study on SCC AS Restoration
TR 29.813
REL 13
Study on S6a/S6d Shared Data Update
TR 29.814
REL 7
Bandwidth saving at Nb interface with IP Transport
TR 29.816
REL 10
Study on PCRF Failure and Restoration
TR 29.817
REL 12
Study on XML based Access of the AF to the PCRF
TR 29.819
REL 13
Study on Impacts of the Diameter Base Protocol Specification Update
TR 29.820
REL 17
Study on Best Practice of PFCP
TR 29.821
REL 17
Study on restoration of profiles related to UDR
TR 29.826
REL 13
P-CSCF restoration enhancements for WLAN
TR 29.827
REL 15 → 16
Study on Policy and Charging for Volume Based Charging
TR 29.828
REL 12
Study on extended IMS Media Plane Security Features
and TCP-related NAT Traversal Support
and TCP-related NAT Traversal Support
TR 29.829
REL 17
Service-based support for SMS in 5GC
TR 29.831
REL 18
Study on NRF API enhancements to avoid signalling and storing of redundant data
TR 29.835
REL 17
Study on Port Allocation Alternatives for New 3GPP Interfaces
TR 29.839
REL 11
3GPP System to Fixed Broadband Access Network Interworking –
HeNB-SeGW Interface
HeNB-SeGW Interface
TR 29.843
REL 16
Study on Load and Overload Control
of 5GC Service Based Interface
of 5GC Service Based Interface
TR 29.844
REL 14
Study on Control and User Plane Separation of EPC Nodes
TR 29.846
REL 6
MBMS — CN1 procedure description
TR 29.847
REL 6
Conferencing based on SIP, SDP, and other Protocols
TR 29.854
REL 12
Study on Shared Data Update for Multiple Subscribers
TR 29.863
REL 7 → 8
Feasibility Study for the Multimedia Inter-Working between the IMS and CS Networks
TR 29.864
REL 8
Study on IMS Application Server Service Data Descriptions for AS Interoperability
TR 29.865
REL 8
Inter-IMS Network to Network Interface
TR 29.882
REL 8
Customized Alerting Tone (CAT) in 3G CS Domain
TR 29.890
REL 15 → 16
CT WG3 aspects of 5G System Phase 1
TR 29.891
REL 15 → 16
CT WG4 aspects of 5G System Phase 1
TR 29.892
REL 16
Study on User-plane Protocol in 5GC
TR 29.893
REL 18
Study on IETF QUIC Transport for 5GC Service Based Interfaces
TR 29.903
REL 5 → 6
Feasibility Study on
SS7 Signalling Transport
in the Core Network with SUA layer
SS7 Signalling Transport
in the Core Network with SUA layer
TR 29.909
REL 8 → 18
Diameter-based Protocols
Usage and Recommendations
in 3GPP
Usage and Recommendations
in 3GPP
TR 29.935
REL 11 → 18
Study on
User Data Convergence (UDC)
Data Model
User Data Convergence (UDC)
Data Model
TR 29.941
REL 17 → 18
Guidelines on Port Allocation for New 3GPP Interfaces
TR 29.949
REL 12 → 18
Study on Technical aspects
on Roaming End-to-End Scenarios
with VoLTE IMS and other Networks
on Roaming End-to-End Scenarios
with VoLTE IMS and other Networks
TR 29.962
REL 6
Signalling Interworking
between the 3GPP Profile of the SIP
and non-3GPP SIP Usage
between the 3GPP Profile of the SIP
and non-3GPP SIP Usage
TR 29.994
REL 3 → 18
Recommended Infrastructure Measures
to Overcome Specific MS and UE Faults
to Overcome Specific MS and UE Faults
TR 29.998
REL 3
Open Services Architecture (OSA)
Application Programming Interface (API)
Part 2
Application Programming Interface (API)
Part 2
TR 29.998-01
REL 4 → 9
OSA API, Part 1: General Issues on API Mapping
TR 29.998-04-1
REL 4 → 9
OSA API, Part 4: Call Control Service Mapping –
Subpart 1: API to CAP Mapping
Subpart 1: API to CAP Mapping
TR 29.998-04-4
REL 5 → 9
OSA API, Part 4: Call Control Service Mapping –
Subpart 4: Multiparty Call Control ISC
Subpart 4: Multiparty Call Control ISC
TR 29.998-05-1
REL 4 → 9
OSA API, Part 5: User Interaction Service Mapping –
Subpart 1: API to CAP Mapping
Subpart 1: API to CAP Mapping
TR 29.998-05-4
REL 4 → 9
OSA API, Part 5: User Interaction Service Mapping –
Subpart 4: API to SMS Mapping
Subpart 4: API to SMS Mapping
TR 29.998-06
REL 4 → 6
OSA API, Part 6: User Location and User Status Service Mapping to MAP
TR 29.998-06-1
REL 7 → 9
OSA API, Part 6: User Location –
Subpart 1: Mapping to MAP
Subpart 1: Mapping to MAP
TR 29.998-06-2
REL 7 → 9
OSA API, Part 6: User Location –
Subpart 2: Mapping to SIP
Subpart 2: Mapping to SIP
TR 29.998-08
REL 4 → 9
OSA API, Part 8: Data Session Control Service Mapping to CAP