LTE Acronyms

 

API

Application Program Interface

IPv6

Internet Protocol version 6

SCS

Service Capability Server

AS

Application Server

IP-CAN

IP-Connectivity Access Network

S-CSCF

Serving-CSCF

BCSM

Basic Call State Model

IP-SM-GW

IP Short Message Gateway

SDP

Session Description Protocol

BG

Border Gateway

ISDN

Integrated Services Digital Network

SGSN

Serving GPRS Support Node

BGCF

Breakout Gateway Control Function

ISIM

IMS SIM

SLF

Subscription Locator Function

BS

Bearer Service

ISP

Internet Service Provider

SSF

Service Switching Function

CAMEL

Customized Application Mobile Enhanced Logic

ISUP

ISDN User Part

SS7

Signaling System 7

CAP

Camel Application Part

IWF

Interworking Function

SIM

Subscriber Identity Module

CDR

Charging Data Record

NP

Number portability

SIP

Session Initiation Protocol

CN

Core Network

MAP

Mobile Application Part

S-GW

Signaling Gateway

CS

Circuit Switched

MGCF

Media Gateway Control Function

TAS

Telephony Application Server

CSCF

Call Session Control Function

MGF

Media Gateway Function

T-GRUU

Temporary Globally Routable User Agent URI

CSE

CAMEL Service Environment

MRB

Media Resource Broker

THIG

Topology Hiding Inter-network Gateway

DHCP

Dynamic Host Configuration Protocol

MRFC

Multimedia Resource Function Controller

TrGW

Transition Gateway

DNS

Domain Name System

MRFP

Multimedia Resource Function Processor

UE

User Equipment

ECN

Explicit Congestion Notification

NAI

Network Access Identifier

UMTS

Universal Mobile Telecommunications System

ENUM

E.164 Number Mapping

NAPT

Network Address Port Translation

URL

Universal Resource Locator

GGSN

Gateway GPRS Support Node

NAT

Network Address Translation

USIM

UMTS SIM

GPRS

General Packet Radio Service

 

 

   

GLMS

Group and List Management Server

NA(P)T-PT

Network Address (Port-Multiplexing) Translation-Protocol Translation

   

GMLC

Gateway Mobile Location Centre

II-NNI

Inter-IMS Network to Network Interface

   

GRUU

Globally Routable User Agent URI

OSA

Open Services Architecture

   

GUP

Generic User Profile

P-CSCF

Proxy-CSCF

   

HSS

Home Subscriber Server

PCC

Policy and Charging Control

   

IBCF

Interconnection Border Control Function

PCEF

Policy and Charging Enforcement Function

   

I-CSCF

Interrogating-CSCF

PCRF

Policy and Charging Rules Function

   

IETF

Internet Engineering Task Force

PDN

Packet Data Network

   

IM

IP Multimedia

PDP

Packet Data Protocol e.g., IP

   

IMC

IMS Credentials

P-GRUU

Public Globally Routable User Agent URI

   

IMS

IP Multimedia Core Network Subsystem

PLMN

Public Land Mobile Network

   

IMS

ALG IMS Application Level Gateway

PSI

Public Service Identity

   

IMSI

International Mobile Subscriber Identifier

PSTN

Public Switched Telephone Network

   

IN

Intelligent Network

QoS

Quality of Service

   

IP

Internet Protocol

RAB

Radio Access Bearer

   

IPv4

Internet Protocol version 4

RFC

Request for Comments