Layer 1
System architecture & procedures / Stage 2 orientation
System architecture for the 5G System (5GS)
S2 · Rel-15Procedures for the 5G System (5GS)
S2 · Rel-15Policy and charging control framework for the 5G System (5GS); Stage 2
S2 · Rel-15PDU Session lifecycle, policy/QoS, SMF services and user-plane realization.
Layer 1
System architecture for the 5G System (5GS)
S2 · Rel-15Procedures for the 5G System (5GS)
S2 · Rel-15Policy and charging control framework for the 5G System (5GS); Stage 2
S2 · Rel-15Layer 2
Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3
C1 · Rel-15Layer 3
5G System; Session Management Services; Stage 3
C4 · Rel-15General Packet Radio System (GPRS) Tunnelling Protocol User Plane (GTPv1-U)
C4 · Rel-8Layer 4
NG-RAN; NG Application Protocol (NGAP)
R3 · Rel-15Primary feature evidence
The reviewed topic source is not an indexed Work Item record. The source link above remains the primary evidence anchor.
Connected work
These Work Items share one or more mapped specifications. Atlas does not automatically claim that every connected Work Item defines this feature.
Cross-spec traceability
23.502stage realization of23.50123.503policy for23.50124.501procedure component23.50229.502interface specification23.50238.413procedure component23.50229.281user plane for23.50124.501stage3 realization of23.50129.502session service for23.501Primary WI evolution
No indexed CRs are linked to the primary Work Item at or before this release.
Rel-15 context
Context only: these CRs target mapped specifications in Rel-15; they are not automatically attributed to the feature.
Using NRF for UPF discovery
revisedUsing NRF for UPF discovery
revisedUsing NRF for UPF discovery
approvedSlicing information and RFSP
revisedAveraging Window Resolution
mergedUE location report to the SMF by RAN in RRC Inactive State
withdrawnRequested S-NSSAI status clarification
notedAddressing packet loss and first packet delay for public safety UEs
notedConfiguration information the UE may exchange with the SMF during the lifetime of a PDU session
revisedConfiguration information the UE may exchange with the SMF during the lifetime of a PDU session
revisedConfiguration information the UE may exchange with the SMF during the lifetime of a PDU session
approvedHandling of MM back-off timer for N3GPP Access
approvedCorrection of the definitions of Allowed NSSAI and Configured NSSAI
approvedAllowed NSSAI and Access Type
revisedAllowed NSSAI and Access Type
revisedCandidate expansion · review required
Inferred only. These records are not part of the reviewed semantic catalogue. The ranking score orders structural evidence; it is not a probability or confidence value, and there is no automatic promotion action.
3GPP Evolved Packet System (EPS); Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C); Stage 3
C4 · Rel-8Organization of subscriber data
C4 · Rel-4Numbering, addressing and identification
C4 · Rel-4General Packet Radio Service (GPRS); GPRS Tunnelling Protocol (GTP) across the Gn and Gp interface
C4 · Rel-4Restoration procedures
C4 · Rel-4General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access
S2 · Rel-8Evolved Packet System (EPS); Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) related interfaces based on Diameter protocol
C4 · Rel-8Evolved Packet System (EPS); 3GPP EPS AAA interfaces
C4 · Rel-8Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3
C1 · Rel-8Diameter applications; 3GPP specific codes and identifiers
C4 · Rel-6Domain Name System Procedures; Stage 3
C4 · Rel-8Interworking between the Public Land Mobile Network (PLMN) supporting packet based services and Packet Data Networks (PDN)
C3 · Rel-4Traceability limits