4G
EPC
Evolved Packet Core
Rel-8 (2008)
Overview
The all-IP core network introduced alongside LTE, comprising the MME, S-GW, and P-GW.
Full technical content for EPC is coming soon. In the meantime, browse the related specifications below.
Specifications
TS 23.401
General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access
Architecture
Rel-17TSEPCUpdated 2026-07-25
TS 24.301
Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3
Protocol
Rel-17TSEPCUpdated 2026-07-25
TS 23.402
Architecture enhancements for non-3GPP accesses
Architecture
Rel-17TSEPCUpdated 2026-07-25
TS 29.274
3GPP Evolved Packet System (EPS); Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C); Stage 3
Interface
Rel-17TSEPCUpdated 2026-07-25
TS 29.281
General Packet Radio System (GPRS) Tunnelling Protocol User Plane (GTPv1-U)
Interface
Rel-17TSEPCUpdated 2026-07-25
TS 29.212
Policy and Charging Control (PCC); Reference points
Interface
Rel-15TSEPCUpdated 2026-07-25
TS 23.008
Organization of subscriber data
Architecture
Rel-16TSEPCUpdated 2026-07-25
TS 23.682
Architecture enhancements to facilitate communications with packet data networks and applications
Architecture
Rel-16TSEPCUpdated 2026-07-25
TS 29.061
Interworking between the Public Land Mobile Network (PLMN) supporting packet based services and Packet Data Networks (PDN)
Interface
Rel-16TSEPCUpdated 2026-07-25