1. Architecture Enhancements for Control and User Plane Separation of EPC Nodes;GPP.;Technical Specification (TS),2016
2. General Packet Radio Service (GPRS) Enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Access;GPP.;Technical Specification (TS),2016
3. Non-Access-Stratum (NAS) Protocol for Evolved Packet System (EPS); Stage 3;GPP.;Technical Specification (TS),2016
4. d. System Architecture for the 5G System;GPP.;Technical Specification (TS),2016
5. Procedures for the 5G System (5GS);GPP.;Technical Specification (TS),2021