2G

2nd Generation

3G

3rd Generation

4G

4th Generation

EF3

European Friends of 3GPP

GPRS

General Packet Radio Service

GTP

GPRS Tunneling Protocol

GUP

Generic User Profile

IRP

Integration Reference Point

JF3

Japanese Friends of 3GPP

NF3

North American Friends of 3GPP

PDCP

Packet Data Convergence Protocol

R99

Release 1999

Rel-4

Release 4

Rel-5

Release 5

RNL

Radio Network Layer

SON

Self Organising Network

TTI

Transmission Time Interval

UE

User Equipment

3G

PC

Packet Core

RNC

Radio Network Controller

UMTS

Universal Mobile Telecommunications System

4G

eNB

Evolved Node B

eNodeB

Evolved Node B

EPC

Evolved Packet Core

LTE

Long Term Evolution

P-GW

Packet Gateway

PDCP

Packet Data Convergence Protocol

RLC

Radio Link Control

RNC

Radio Network Controller

RRC

Radio Resource Control

S-GW

Service Gateway

VoLTE

Voice over LTE