Canonical Atlas record

TS 23.502

Procedures for the 5G System (5GS)

Responsible WGS2
StatusUnder change control
Initial releaseRel-15
Selected releaseRel-17
Latest indexed version20.3.0
Series23
TypeTS
Visual answer

Stage-3 realization of TS 23.502

Procedures for the 5G System

Rel-17Atlas curated

Release-aware filtering uses explicit relationship validity where mapped and official initial-release metadata where available. Unknown relationship validity remains visible and labelled rather than guessed.

Release evolution

Compare evidence between releases

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

Version · WI · CR evidence by release

Rel-13no version indexed1 WI0 CRs
Rel-14no version indexed1 WI0 CRs
Rel-1515.17.05 WI2264 CRs · 721 approved
Rel-1616.19.032 WI3112 CRs · 842 approved
Rel-1717.15.032 WI1702 CRs · 553 approved
Rel-1818.14.061 WI2572 CRs · 533 approved
Rel-1919.9.042 WI1627 CRs · 275 approved
Rel-2020.3.023 WI392 CRs · 71 approved

Rel-17 snapshot

Work affecting this release

1,702 indexed Change Requests · 32 connected Work Items.

Showing 0 CR records from the available cross-release sample. Browse release CR records (JSON) →

Version history

Indexed versions

Showing 60 of 107 indexed versions.

20.3.0Rel-20SA#1132026-09-24
19.9.0Rel-19SA#1132026-09-24
20.2.0Rel-20SA#1122026-06-22
19.8.0Rel-19SA#1122026-06-22
18.14.0Rel-18SA#1122026-06-22
20.1.0Rel-20SA#1112026-03-16
19.7.0Rel-19SA#1112026-03-16
18.13.0Rel-18SA#1112026-03-16
20.0.0Rel-20SA#1102025-12-19
19.6.0Rel-19SA#1102025-12-19
18.12.0Rel-18SA#1102025-12-19
17.15.0Rel-17SA#1102025-12-19
19.5.0Rel-19SA#1092025-09-24
18.11.0Rel-18SA#1092025-09-24
19.4.0Rel-19SA#1082025-06-19
18.10.0Rel-18SA#1082025-06-19
19.3.0Rel-19SA#1072025-03-25
18.9.0Rel-18SA#1072025-03-25
17.14.0Rel-17SA#1072025-03-25
19.2.0Rel-19SA#1062025-01-05
18.8.0Rel-18SA#1062025-01-05
19.1.0Rel-19SA#1052024-09-24
18.7.0Rel-18SA#1052024-09-24
17.13.0Rel-17SA#1052024-09-24
19.0.0Rel-19SA#1042024-06-26
18.6.0Rel-18SA#1042024-06-26
18.5.0Rel-18SA#1032024-03-27
17.12.0Rel-17SA#1032024-03-27
16.19.0Rel-16SA#1032024-03-27
18.4.0Rel-18SA#1022023-12-19
17.11.0Rel-17SA#1022023-12-19
16.18.0Rel-16SA#1022023-12-19
18.3.0Rel-18SA#1012023-09-19
17.10.0Rel-17SA#1012023-09-19
16.17.0Rel-16SA#1012023-09-19
15.17.0Rel-15SA#1012023-09-19
18.2.0Rel-18SA#1002023-06-29
17.9.0Rel-17SA#1002023-06-23
16.16.0Rel-16SA#1002023-06-22
18.1.1Rel-18SA#992023-04-05
18.1.0Rel-18SA#992023-04-05
17.8.0Rel-17SA#992023-03-31
18.0.0Rel-18SA#98-e2022-12-21
17.7.0Rel-17SA#98-e2022-12-21
16.15.0Rel-16SA#98-e2022-12-21
17.6.0Rel-17SA#97-e2022-09-22
16.14.0Rel-16SA#97-e2022-09-22
17.5.0Rel-17SA#962022-06-15
16.13.0Rel-16SA#962022-06-15
15.16.0Rel-15SA#962022-06-15
17.4.0Rel-17SA#95-e2022-03-23
16.12.0Rel-16SA#95-e2022-03-23
17.3.0Rel-17SA#94-e2021-12-23
16.11.0Rel-16SA#94-e2021-12-23
17.2.1Rel-17SA#93-e2021-09-29
17.2.0Rel-17SA#93-e2021-09-24
16.10.0Rel-16SA#93-e2021-09-24
15.15.0Rel-15SA#93-e2021-09-24
17.1.0Rel-17SA#92-e2021-06-24
16.9.0Rel-16SA#92-e2021-06-24

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 23.502

DUMMY

Awaiting formal work item

Rel-13parsed
NB_IOTenh-Core

Core part: Enhancements of NB-IoT

Rel-14parsed
5GS_Ph1

5G System - Phase 1

Rel-15official
5GS_Ph1-SEC

Security aspects of 5G System - Phase 1

Historical association · verification pending
Rel-15historical link
LTE_Aerial

Enhanced LTE Support for Aerial Vehicles

Rel-15parsed
NETSLICE-5GTRACE

5G Trace management

Rel-15parsed
NR_newRAT-Core

Core part: New Radio Access Technology

Rel-15parsed
5GMS3

5G Media Streaming stage 3

Rel-16parsed
5GS_S6b_Optional

S6b Optional for ePDG connected to 5GS

Rel-16parsed
5G_CIoT

Cellular IoT support and evolution for the 5G System

Rel-16parsed
5G_URLLC

Enhancement of URLLC support in the 5G Core network

Rel-16parsed
5G_eLCS

Enhancement to the 5GC LoCation Services

Historical association · verification pending
Rel-16historical link
5G_eSBA

Enhancements to the Service-Based 5G System Architecture

Rel-16parsed
5WWC

Wireless and Wireline Convergence for the 5G system architecture

Rel-16parsed
ATSSS

Access Traffic Steering, Switch and Splitting support in the 5G system architecture

Rel-16parsed
Direct_data_fw_NR-Core

Core part: Direct data forwarding between NG-RAN and E-UTRAN nodes for inter-system mobility

Rel-16parsed
ETSUN

Enhancing Topology of SMF and UPF in 5G Networks

Rel-16parsed
FS_5G-SRVCC

Study for single radio voice continuity from 5GS to 3G

Rel-16parsed
FS_5G_URLLC

Study on enhancement of URLLC supporting in 5GC

Rel-16parsed
FS_5WWC

Study on the Wireless and Wireline Convergence for the 5G system architecture

Rel-16parsed
FS_CIoT_5G

Study on 5G_CIoT

Rel-16parsed
FS_RACS

Study on RACS

Rel-16parsed
FS_eIMS5G

Study on Enhanced IMS to 5GC Integration

Rel-16parsed
IABARC

Architecture enhancements for the support of Integrated access and backhaul (IAB)

Historical association · verification pending
Rel-16historical link
LTE_eMTC5

Additional MTC enhancements for LTE

Rel-16parsed
LTE_eMTC5-Core

Core part: Additional MTC enhancements for LTE

Rel-16parsed
LTE_feMob-Core

Core part: Even further mobility enhancement in E-UTRAN

Rel-16parsed
NB_IOTenh3

Additional enhancements for NB-IoT

Rel-16parsed
NB_IOTenh3-Core

Core part: Additional enhancements for NB-IoT

Rel-16parsed
NR_IIOT

Support of NR Industrial Internet of Things (IoT)

Rel-16parsed
NR_IIOT-Core

Core part: Support of NR Industrial Internet of Things (IoT)

Rel-16parsed
NR_Mob_enh-Core

Core part: NR mobility enhancements

Rel-16parsed
NR_unlic-Core

Core part: NR-based access to unlicensed spectrum

Rel-16parsed
RACS

Optimisations on UE radio capability signalling

Historical association · verification pending
Rel-16historical link
TEI16

(Small) Technical Enhancements and Improvements for Rel-16

Rel-16parsed
Vertical_LAN

5GS Enhanced support of Vertical and LAN Services

Rel-16parsed
eNA

Enablers for Network Automation for 5G

Rel-16parsed
eNS

Enhancement of Network Slicing

Rel-16parsed
eV2XARC

Architecture enhancements for 3GPP support of advanced V2X services

Historical association · verification pending
Rel-16historical link
5GProtoc17

Stage-3 5GS NAS protocol development 17

Historical association · verification pending
Rel-17historical link
5GSAT_ARCH

Integration of satellite components in the 5G architecture

Historical association · verification pending
Rel-17historical link
5G_AIS

5G System Enhancement for Advanced Interactive Services

Rel-17parsed
5G_ProSe

Proximity based Services in 5GS

Rel-17parsed
5MBS

Multicast-broadcast services in 5G

Rel-17parsed
ARCH_NR_REDCAP

Architecture Enhancement for NR Reduced Capability Devices

Rel-17parsed
ATSSS_Ph2

Access Traffic Steering, Switch and Splitting support in the 5G system architecture; Phase 2

Historical association · verification pending
Rel-17historical link
EDGEAPP

Architecture for enabling Edge Applications

Rel-17parsed
FS_AMFREAL_SEC

Study on the security of AMF re-allocation

Rel-17parsed
FS_IIoT

Study on enhanced support of Industrial IoT

Rel-17parsed
FS_enh_EC

Study on enhancement of support for Edge Computing in 5GC

Rel-17parsed
ID_UAS

Remote Identification of Uncrewed Aerial Systems

Historical association · verification pending
Rel-17historical link
IIoT

Support of Enhanced Industrial IIoT

Rel-17parsed
IoT_SAT_ARCH_EPS

Architecture support for NB-IoT/eMTC Non-Terrestrial Networks in EPS

Rel-17parsed
MINT

Support for Minimization of service Interruption

Historical association · verification pending
Rel-17historical link
MPS2

Multimedia Priority Service (MPS) Phase 2

Historical association · verification pending
Rel-17historical link
MUSIM

Support for Multi-USIM Devices

Historical association · verification pending
Rel-17historical link
NR_UE_pow_sav_enh

UE power saving enhancements for NR

Rel-17parsed
NR_UE_pow_sav_enh-Core

Core part: UE power saving enhancements for NR

Rel-17parsed
NR_redcap-Core

Core part: NR_redcap

Rel-17parsed
NR_slice-Core

Core part: Enhancement of RAN slicing for NR

Rel-17parsed
NSWO_5G

Non-Seamless WLAN offload in 5GS

Historical association · verification pending
Rel-17historical link
SBIProtoc17

Service Based Interface Protocol Improvements Release 17

Historical association · verification pending
Rel-17historical link
SMS_SBI

Service-based support for SMS in 5GC

Rel-17parsed
TEI17

(Small) Technical Enhancements and Improvements for Rel-17

Rel-17parsed
TEI17_DCAMP

Dynamically Changing AM Policies in the 5GC

Rel-17parsed
TEI17_IPU

IP address pool information from UDM

Rel-17parsed
UPIP_SEC_LTE

User Plane Integrity Protection for LTE

Rel-17parsed
eEDGE_5GC

Enhancement of support for Edge Computing in 5G Core network

Rel-17parsed
eNA_Ph2

Enablers for Network Automation for 5G - phase 2

Historical association · verification pending
Rel-17historical link
eNPN

Enhanced support of Non-Public Networks

Historical association · verification pending
Rel-17historical link
eNS_Ph2

Enhancement of Network Slicing Phase 2

Rel-17parsed
5GSATB

5G system with satellite backhaul

Rel-18parsed
5GSAT_Ph2

Satellite access Phase 2

Rel-18parsed
5G_ProSe_Ph2

Proximity-based Services in 5GS Phase 2

Rel-18parsed
5G_eLCS_Ph3

5GC LoCation Services - Phase 3

Rel-18parsed
5MBS_Ph2

5G multicast-broadcast services Phase 2

Rel-18parsed
5WWC_Ph2

Support for Wireless and Wireline Convergence Phase 2

Rel-18parsed
5WWC_Ph2

Stage 2 of 5WWC_Ph2

Rel-18parsed
AIMLsys

Artificial Intelligence (AI)/Machine Learning (ML)

Rel-18parsed
AMP

5G AM Policy

Rel-18parsed
AMP

Stage 2 of 5G AM Policy

Rel-18parsed
ATSSS_Ph3

Stage 2 of ATSSS_Ph3

Rel-18parsed
ATSSS_Ph3

Access Traffic Steering, Switch and Splitting support in the 5G system architecture; Phase 3

Rel-18parsed
DetNet

Extensions to the TSC Framework to support DetNet

Rel-18parsed
EDGE_Ph2

(stage 2 of) Edge Computing Phase 2

Rel-18parsed
FS_5TRS_URLLC

Study on 5G Timing Resiliency and TSC&URLLC enhancements

Rel-18parsed
FS_5WWC_Ph2

Study on the support for 5WWC Phase 2

Rel-18parsed
FS_AIMLsys

Study on 5G System Support for AI/ML-based Services

Rel-18parsed
FS_SFC

Study on System Enabler for Service Function Chaining

Rel-18parsed
FS_UPEAS

Study on UPF enhancement for Exposure And SBA

Rel-18parsed
FS_eNPN_Ph2

Study on enhanced support of Non-Public Networks phase 2

Rel-18parsed
FS_eNS2_SEC

Study on enhanced security for network slicing Phase 2

Rel-18parsed
GMEC

Stage 2 of GMEC

Rel-18parsed
GMEC

Generic group management, exposure and communication enhancements

Rel-18parsed
LI18

Lawful Interception Rel-18

Rel-18parsed
MPS_WLAN

MPS when access to EPC/5GC is WLAN

Rel-18parsed
NG_RTC

System architecture for Next Generation Real time Communication services

Rel-18parsed
NR_MT_SDT-Core

Core part: Mobile Terminated-Small Data Transmission (MT-SDT) for NR

Rel-18parsed
NR_NTN_enh-Core

Core part: NR NTN (Non-Terrestrial Networks) enhancements

Rel-18parsed
NR_QoE_enh-Core

Core part: Enhancement on NR QoE management and optimizations for diverse services

Rel-18parsed
NR_REDCAP_Ph2

(Stage 2 of) NR RedCap UE with long eDRX for RRC_INACTIVE State

Rel-18parsed
NR_REDCAP_Ph2

NR RedCap UE with long eDRX for RRC_INACTIVE State

Rel-18parsed
NR_netcon_repeater-Core

Core part: NR network-controlled repeaters

Rel-18parsed
NR_redcap_enh-Core

Core part: Enhanced support of reduced capability NR devices

Rel-18parsed
PIN

(Stage 2 of) Personal IoT Networks

Rel-18parsed
Ranging_SL

Stage 2 of Ranging_SL

Rel-18parsed
SFC

5G System Enabler for Service Function Chaining

Rel-18parsed
SUECR

Seamless UE context recovery

Rel-18parsed
SUECR

Stage 2 of Seamless UE context recovery

Rel-18parsed
TEI18

(Small) Technical Enhancements and Improvements for Rel-18

Rel-18parsed
TEI18_ADEE

TEI18 on Enhancement of Application Detection Event Exposure

Rel-18parsed
TEI18_DCAMP_Ph2

Dynamically Changing AM Policies in the 5GC Phase 2

Rel-18parsed
TEI18_IPv6PD

General Support of IPv6 Prefix Delegation in 5GS

Rel-18parsed
TEI18_SDNAEPC

Stage 2 of Secondary DN Authentication and authorization in EPC IWK cases

Rel-18parsed
TEI18_SDNAEPC

Secondary DN Authentication and authorization in EPC IWK cases

Rel-18parsed
TEI18_SLAMUP

Spending Limits for AM and UE Policies in the 5GC

Rel-18parsed
TEI18_SLAMUP

Stage 2 of TEI18_SLAMUP

Rel-18parsed
TRS_URLLC

Stage 2 of Timing Resiliency and URLLC enhancements

Rel-18parsed
UAS_Ph2

(Stage 2 of UAS Ph2) Further Architecture Enhancement for UAV and UAM

Rel-18parsed
UPEAS

Stage 2 of UPEAS

Rel-18parsed
UPEAS

UPF enhancement for Exposure and SBA

Rel-18parsed
VMR

Vehicle-Mounted Relays

Rel-18parsed
XRM

Architecture Enhancements for XR (Extended Reality) and media service

Rel-18parsed
XRM

(Stage 2 for XRM) Architecture Enhancements for XR (Extended Reality) and media service

Rel-18parsed
eNA_Ph3

Enablers for Network Automation for 5G phase 3

Rel-18parsed
eNA_Ph3

(stage 2 of eNA_Ph3) Enablers for Network Automation for 5G phase 3

Rel-18parsed
eNPN_Ph2

Non-Public Networks Phase 2

Rel-18parsed
eNPN_Ph2

Stage 2 of Non-Public Networks Phase 2

Rel-18parsed
eNS2_SEC

Enhanced security for Phase 2 network slicing

Rel-18parsed
eNSAC

Enhancement of NSAC for maximum number of UEs with at least one PDU session/PDN connection

Rel-18parsed
eNS_Ph3

Network Slicing Phase 3

Rel-18parsed
eUEPO

Enhancement of 5G UE Policy

Rel-18parsed
5GSAT_Ph3-ARC

Integration of satellite components in the 5G architecture Phase 3

Rel-19parsed
5GSAT_Ph3_ARCH

CT aspects of integration of satellite components in the 5G architecture Phase 3

Historical association · verification pending
Rel-19historical link
5G_Femto

5G NR Femto

Rel-19parsed
5G_Femto

System aspects of 5G NR Femto

Rel-19parsed
5G_ProSe_Ph3

Proximity-based Services in 5GS Phase 3

Rel-19parsed
5G_RTP_Ph2

5G Real-time Transport Protocol Configurations, Phase 2

Rel-19parsed
AIML_CN

Core Network Enhanced Support for Artificial Intelligence (AI)/Machine Learning (ML)

Rel-19parsed
AmbientIoT-ARC

Architecture support of Ambient power-enabled Internet of Things

Rel-19parsed
CHFSeg

CHF Segmentation

Rel-19parsed
EDGE_Ph3

Security Aspects of Enhancement of Support for Edge Computing in 5GC phase 3

Rel-19parsed
EnergySys

Energy Efficiency and Energy Saving

Rel-19parsed
MASSS

Multi-Access (ATSSS_Ph4)

Rel-19parsed
MASSS

Stage 2 of Multi-Access (ATSSS_Ph4)

Rel-19parsed
MINT_Ph2

Minimization of Service Interruption During Core Network Failure Phase 2

Rel-19parsed
MPS4msg

MPS for Messaging services

Rel-19parsed
NG_RTC_Ph2

System architecture for Next Generation Real time Communication services Phase 2

Rel-19parsed
NR_LPWUS-Core

Core part: Low-power wake-up signal and receiver for NR (LP-WUS/WUR)

Rel-19parsed
NR_XR_Ph3-Core

Core part: XR (eXtended Reality) for NR Phase 3

Rel-19parsed
Non3GPPMob_Sec

Mobility over non-3GPP access to avoid full primary authentication

Rel-19parsed
TEI19

(Small) Technical Enhancements and Improvements for Rel-19

Rel-19parsed
TEI19_HSBO

Roaming traffic offloading via session breakout in HPLMN

Rel-19parsed
TEI19_IP_SP_EXP

Enhancing Parameter Provisioning with static UE IP address and UP security policy

Rel-19parsed
TEI19_MINPA

Minimize the Number of Policy Associations

Rel-19parsed
TEI19_MVOSNS

Stage 2 of MSISDN verification operation support to Nnef_UEId Service

Rel-19parsed
TEI19_NFsel_by_tPLMN

NF discovery and selection by target PLMN

Rel-19parsed
TEI19_NFsel_by_tPLMN

Stage 2 of NF discovery and selection by target PLMN

Rel-19parsed
TEI19_NetShare

(Stage 2 of) Indirect Network Sharing

Rel-19parsed
TEI19_OBGAD

Stage 2 of On-demand broadcast of GNSS assistance data

Rel-19parsed
TEI19_QME

Stage 2 of QoS monitoring enhancement

Rel-19parsed
TEI19_RVAS

Architecture support of roaming value-added services

Rel-19parsed
TEI19_SLUPiR

Spending Limits for UE Policies in Roaming scenario

Rel-19parsed
TEI19_SLUPiR

Stage 2 of Spending Limits for UE Policies in Roaming scenario

Rel-19parsed
TEI19_SliceSel

Network Controlled Network Slice Selection

Rel-19parsed
TEI19_SliceSel

Stage 2 of Network Controlled Network Slice Selection

Rel-19parsed
TEI19_VLANSUB

Providing per-subscriber VLAN instructions from UDM and DN-AAA

Rel-19parsed
UAS_Ph3

Uncrewed Aerial System Phase 3

Rel-19parsed
UIA_ARC

Identifying non-3GPP Devices Connecting behind a UE or 5G-RG

Rel-19parsed
UPEAS_Ph2

UPF enhancement for Exposure And SBA Phase 2

Rel-19parsed
UPEAS_Ph2

Stage 2 of UPF enhancement for Exposure And SBA Phase 2

Rel-19parsed
VMR_Ph2

Vehicle Mounted Relays Phase 2

Rel-19parsed
XRM_Ph2

Extended Reality and Media service (XRM) Phase 2

Rel-19parsed
eEDGE_5GC_Ph3

Enhancement of support for Edge Computing in 5G Core network - Phase 3

Rel-19parsed
5GSAT_Ph4-ARC

Stage 2 of Integration of satellite components in the 5G architecture Phase 4

Rel-20parsed
AIML_CN_Ph2-ARC

Core Network Enhanced Support for Artificial Intelligence (AI) / Machine Learning (ML) Phase 2; Stage 2

Rel-20parsed
AmbientIoT_Ph2-ARC

Architecture support of Ambient power-enabled Internet of Things - Phase 2

Rel-20parsed
EnergySys_Ph2-ARC

Stage 2 of Energy Efficiency and Energy Saving Phase 2

Rel-20parsed
FS_EnergySys_Ph2

Study on Energy Efficiency and Energy Saving Phase2

Rel-20parsed
NG_RTC_Ph3-ARC

System architecture for next generation real time communication services - Phase 3

Rel-20parsed
NR_XR_Ph4-Core

Core part: XR (eXtended Reality) for NR Phase 4

Rel-20parsed
SMS2EC-ARC

Short Message Service to Emergency Response Centre

Rel-20parsed
Sensing-ARC

Stage 2 of Integrated Sensing and Communication

Rel-20parsed
TEI20

(Small) Technical Enhancements and Improvements for Rel-20

Rel-20parsed
TEI20_CoCBM-ARC

Control of Cross Border Mobility

Rel-20parsed
TEI20_DAMP

Deferred AM Policies in the 5GC

Rel-20parsed
TEI20_DNU

Dynamic NITZ Update

Rel-20parsed
TEI20_MACSUB

Providing per-subscriber Allowed MAC addresses from UDM

Rel-20parsed
TEI20_MINPA_Ph2-ARC

Minimized the Number of Policy Associations - Phase 2

Rel-20parsed
TEI20_NEPS

Support of NSSAA in EPS

Rel-20parsed
TEI20_NSSRG_EPS-ARC

Network Slice Simultaneous Registration Group (NSSRG) in EPS

Rel-20parsed
TEI20_NetShare_Ph2-ARC

Stage 2 for Indirect Network Sharing Phase2

Rel-20parsed
TEI20_QoS_MWAB_SAT-ARC

QoS aspect of MWAB using Satellite

Rel-20parsed
TEI20_SCONE-ARC

Operator-controlled Standard Communication with Network Elements (SCONE) support

Rel-20parsed
TEI20_UDCE-ARC

UPF Data Collection Enhancement

Rel-20parsed
TEI20_UPMD-ARC

User Plane Media Distribution

Rel-20parsed
TEI20_eEOS-ARC

Enhanced EAS/ECS Option Selection

Rel-20parsed

Knowledge graph

Related standards

interface_specification

29.502

curated
procedure_component

24.501

curated
procedure_component

38.413

curated
security_for

33.501

curated
stage_realization_of

23.501

curated