07-3gsystra_vocabulary for system training_6-89079

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SYSTEM TRAINING

Vocabulary for System Training

Training Document




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The information in this document is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This document is intended for theuse of Nokia Networks' customers only for the purposes of the agreement under which thedocument is submitted, and no part of it may be reproduced or transmitted in any form ormeans without the prior written permission of Nokia Networks. The document has beenprepared to be used by professional and properly trained personnel, and the customer

assumes full responsibility when using it. Nokia Networks welcomes customer comments aspart of the process of continuous development and improvement of the documentation.

The information or statements given in this document concerning the suitability, capacity, orperformance of the mentioned hardware or software products cannot be considered bindingbut shall be defined in the agreement made between Nokia Networks and the customer.However, Nokia Networks has made all reasonable efforts to ensure that the instructionscontained in the document are adequate and free of material errors and omissions. NokiaNetworks will, if necessary, explain issues which may not be covered by the document.

Nokia Networks' liability for any errors in the document is limited to the documentarycorrection of errors. Nokia Networks WILL NOT BE RESPONSIBLE IN ANY EVENT FORERRORS IN THIS DOCUMENT OR FOR ANY DAMAGES, INCIDENTAL ORCONSEQUENTIAL (INCLUDING MONETARY LOSSES), that might arise from the use of thisdocument or the information in it.

This document and the product it describes are considered protected by copyright accordingto the applicable laws.

NOKIA logo is a registered trademark of Nokia Corporation.

Other product names mentioned in this document may be trademarks of their respectivecompanies, and they are mentioned for identification purposes only.

Copyright © Nokia Oyj 2003. All rights reserved.



Contents

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Contents

1 Introduction .............................................................................. 4

2 Vocabulary................................................................................ 5




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1 Introduction

It seems that everywhere we look today things are moving faster and faster.Everyone is looking for that shortcut. Even in the way we talk we look to speed

things up. Slang, contractions, and acronyms are seen and heard everywhere. Itis with the acronyms, however, that most people become confused. Every sectorof our lives has its own acronyms. Nowhere, however, are they more prevalent

than in the work place; and today’s telecommunications industry is noexception. The Vocabulary that follows is a list of telecommunicationsacronyms and their meaning.

In some cases only the words that the letters of the acronym represent will be

provided; others will go into more detail. Some acronyms have more than onemeaning. In those cases an attempt has been made to provide both meanings.

Note

In no way is this document intended to be all-inclusive, nor should it be taken

as the ultimate word. It is intended to be used as a quick reference guide to helpyou become familiar with telecommunication terminology.

We at Nokia hope you will find it useful.



Vocabulary

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2 Vocabulary

The following is a list of acronyms and vocabulary used in association withcellular communications:

Acronym Definition

1G First Generation

2G Second Generation

3G Third Generation

3G-GGSN 3rd Generation GGSN

3G-HLR GPRS HLR

3G-SGSN 3rd Generation SGSN

3G-UMTS 3rd Generation UMTS

3GPP 3rd Generation Partnership Project

A

A- Interface between BSC and MSC

A2SU AAL2 Switching Unit

AAL(1,-2,-3/4,-5) ATM Adaptation Layer (1,-2,-3/4,-5)

AB Access Burst

Abis- Interface between BSC and BTS

ABR Available Bit Rate

AC a) Authentication Centre; b) Admission Control; c) Application Context

ACCH Associated Control Channel

ACU Authentication Centre Unit

AdC Administration Centre

ADSL Asymmetrical Digital Subscriber Line– A means to increase transmission speed ina copper line by dividing the capacity into a channel with higher speed to thesubscriber.

AGCH Access Grant Channel

ALC Access Link Control

ALCAP Access Link Application Part

AM Amplitude Modulation

AMPS Advanced Mobile Phone System

AMR Adaptive Multi Rate

ANSI American National Standards Institute

AO Application Originated

AoC Advice of Charge

AoCC Advice of Charge - Charging

AoCI Advice of Charge - Information

AP Access Point




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API Application Programming Interface

APN Access Point Name

APSE Application Servers

ARFCN Absolute Radio Frequency Channel Number

ARIB Association for Radio Industry and Business (Japan)

ARQ Automatic Request for Retransmission

AT Application Terminated

ATM Asynchronous Transfer Mode

AUC Authentication Centre

AUTN Authentication Token

AXC ATM Cross Connect

AXU ATM Switch Unit

B

BBM Base Band Module

BC Billing Centre

BCCH Broadcast Control Channel

BCCH_FREQ_NCELL Frequency of the RF carrier on which the BCHH of a neighbouring cell istransmitted

BCD Binary Coded Decimal

BCH Broadcast Channel

BDCU Basic Data Communication Unit

BER Bit Error Ratio

BG Border Gateway

BGIWP Barring of GPRS Interworking Profile(s)

BGP Border Gateway Protocol

BHCA Busy Hour Calls

BIB Backward Indicator Bit

BICC Bearer Independent Call Control protocol

B-ICI Broadband Inter-Carrier Interface

BISDN Broadband Integrated Service Digital Network

B-ISDN Broadband Integrated Services Digital Network

BISUP Broadband ISDN User Part

B-ISUP Broadband ISDN User Part

BLER Bit Loss Error Ratio

Bm Traffic channel for full rate voice coder

BM Bearer Management

BN Bearer Negotiation

BNHO Barring all outgoing calls except those to Home PLMN

BRAN Broadband Radio Network Access Network



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BS Base Station

BSAP Base Station Application Part

BSC Base Station Controller

BSC Base Station Controller

BSIC Base Transceiver Station Identity Code

BSIC-NCELL BSIC of an Adjacent Cell

BSN Backward Sequence Number

BSS Base Station Subsystem

BSSAP BSS Application Part

BSSGP BSS GPRS Protocol

BSSMAP BSS Management Application Part

BSU Base Station Signalling Unit

BT Burst Tolerance

BTS Base Transceiver Station

BTSM BTS Management

C

C/I Carrier/Interface Ratio

CAC Connection Admission Control

CACU Control and Administrative Computer Unit

CAMEL Customised Applications for Mobile network Enhanced Logic

CAP Camel Application Part

CAPU Call Processing Unit

CAS Channel Associated Signalling

CASU Channel Associated Signalling Unit

CBCH Cell Broadcast ChannelCBR Constant Bit Rate

CC a) Call/Connection Control; b) Country Code; c) Customer Care

CCB Costumer Care and Billing

CCBS Customer Care and Billing System

CCCH Common Control Channel

CCITT Comité Consultatif International Télégraphique et Téléphonique

CCMU Common Channel Signalling Management Unit

CCPCH Common Control Physical Channel

CCS7 Common Channel Signalling #7

CCSU Common Channel Signalling Unit

CCU Channel Codec Unit

CDMA Code Division Multiple Access – A technology that allows multiple users to accessto the same cell. Using digital format, CDMA identifies each conversation uniquelyor by a code rather than a frequency (FDMA) or a slice of time (TDMA)




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CDR Call Detail Record

CDSP Configurable Dynamic Signal Processing Plug-in Unit

CDSU Compact Data Service Unit

CDV Cell Delay Variation

CEO Chief Executive Officer

CEPT Conference of European Posts and Telegraphs. This body later formed theGroupe Spécial Mobile (GSM).

CFNRc Call Forwarding on Mobile Subscriber Not Reachable

CFU Call Forwarding Unconditional

CG Charging Gateway

CG/AD CG/Alarm Dispatcher

CG/ARC CG/Accounting Record Collection

CG/ARM CG/Accounting Record Modification

CG/FTM CG/File Transfer Manager

CGI Cell Global Identity

CHU Charging Unit

CI Cell Identity

CIC Circuit Identification Code

CID Channel Identifier, in CPS of AAL2

CK Ciphering Key

CLNS Connectionless Network Service

CLP Cell Loss Priority

CLR Cell Lose Rate

CLS Clock and Synchronisation Unit

CLSU Clock System Unit

CM a) Communication Management; b) Central Memory

CM Communication Management

CMM Central Memory and Marker

CMU Cellular Management Unit

CN Core Network

CNIP Calling Number Identification Presentation

CNIR Calling Number Identification Restriction

CONS Connection-Oriented Network Service

CORBA Common Object Request Broker Architecture

CPCH Common Physical Channel

C-Plane Control Plane

CPS a) Common Part Sublayer; b) Call Processing Server

CRM Customer Relationship Management

CRRM Central Radio Resource Management



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CS a) Circuit Switched; b) Convergence Sublayer

CS1 (AAL2) Capability Set 1

CSCF Call State Control Function

CSCP Convergence Sublayer Common Part - also CPCS

CSPDN Circuit Switched Public Data Networks

CTCH Common Traffic Channel

CTP Control Transport Protocol

CUG Closed User Group

CWTS China Wireless Telecommunication Standard Group

D

DAMPS Digital Advanced Mobile Phone Service

DB a) Dummy Burst; b) Database

DBDU Database Distributor Unit

DBR Deterministic Bit Rate

DCCH Dedicated Control Channel

DCH Dedicated Channel

DCN Data Communication Network in TMN

DCS Digital Cellular System

DECT Digital Enhanced Cordless Telecommunications

DHCP Dynamic Host Configuration Protocol

DHO Diversity Handover /softer handover

DL Data Link (Layer)

DLCI Data Link Connection Identifier

DLD Data Link Connection Discriminator

Dm Control Channel (ISDN terminology applied to mobile service)DMCU Data and Macro Diversity Combining Unit

DNS Domain Name Server

DPC Destination Point Code

DPCCH Dedicated Physical Control Channel

DPCH Dedicated Physical Channel

DPDCH Dedicated Physical Data Channel

DRNC Drift RNC

DRX Discontinuous Reception

DS Direct Sequence

DSCH Downlink Shared Channel

DSP Digital Signal Processing / Processor

DSPU Distributed Signal Processing Unit

DSS Direct Sequencing Spreading




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DTAP Direct Transfer Application Part

DTCH Dedicated Traffic Channel

DTE Data Terminal Equipment

DTMF Dual Tone Multi-Frequency (Signalling)

DTX Discontinuous Transmission (Mechanism)

E

E1 PCM 30 trunk, 2Mbps data rate

EAIF External Application Interface

ECET Echo Cancelling Exchange Terminal

EDGE Enhanced Data Rates for GSM Evolution

EFR Enhanced Full Rate

EIR Equipment Identity Register

EIRU Equipment Identity Register Unit

EM Element Manager

EMU Equipment Main Unit

ERP Enterprise Resource Planning

ET Exchange Terminal

ETSI European Telecommunications Standards Institute

F

F Frame Mark

FAC Final Assembly Code

FACCH Fast Associated Control Channel (ACCH)

FACCH/F Full Rate FACCH

FACCH/H Half Rate FACCH

FACH Forward Access ChannelFB Frequency Correction Burst

FCC Federal Communication Commission

FCL Frame Control Layer

FDD Frequency Division Duplex

FDMA Frequency Division Multiple Access – This is the technology that allowed differentcellular broadcasts in the same geographical region by using different frequencies

FDU Floppy Disk Unit

FER Frame Error Ratio

FFS For Further Study

FH Frequency Hopping

FIB Forward Indicator Bit

FISU Fill-In Signalling Unit

FM Frequency Modulation

FP Frame Protocol



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FPLMTS Future Public Land Mobile Telecommunication Systems

FR Full Rate

FSN Forward Sequence Number

FTAM File Transfer, Access and Management

FTMID Sequential number of method instance

FTP File Transfer Protocol

G

Gb- Interface between BSC and SGSN

G-CDR Gateway GPRS Support Node-Call Detail Record

GCS Gateway Control Server

GFC Generic Flow Control

GGSN Gateway GPRS Support Node

GHLR Gateway HLR

GMM GPRS Mobility Management

GMSC Gateway MSC

GMSK Gaussian Minimum Shift Key

GMSS Gateway MSS

GPA GSM Public Land Mobile Network (PLMN) Area

GPRS General Packet Radio Service

GPS Global Positioning System

GSA GSM System Area

GSM Groupe Spécial Mobile or Global System for Mobile Communication

GSM Global System for Mobile Communications

GSM PLMN GSM Public Land Mobile Network

GSN GPRS Support NodeGSTN General Switched Telephone Network

GSW Group Switch

GTP GPRS Tunnelling Protocol

GTP´ GPRS Tunnel Protocol (enhanced)

GTPU GPRS Tunnelling Protocol Unit

GUI Graphical User Interface

GW Gateway

GWMSC Gateway Wideband Mobile Switching Centre

H

HC Handover Control

HDLC High Level Data Link Control

HE Home Environment

HEC Header Error Check




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HLR Home Location Register

HLR Home Location Register

HLRU Home Location Register Unit

HO Handover

HPLMN Home Public Land Mobile Network

HR Half Rate

HSCSD High Speed Circuit Switched Data

HSN Hopping Sequence Number

HSS Home Subscriber Server

HTML Hyper Text Markup Language

HTML Hyper Text Mark-up Language

HTTP Hyper Text Transfer Protocol

HW Hardware

I

IAM Initial Address Message

ICI Inter Carrier Interface

ICMP Internet Control Message Protocol

ICSU Interface Control and Signalling Unit

ID Identification / Identity / IDentifier

IDN Integrated Digital Network

IETF Internet Engineering Task Force

IETF Internet Engineering Task Force

IFU Interface Unit

IGRP Interior Gateway Routing Protocol

IGSN Internet Gateway Support NodeIISP Interim Interswitch Signalling protocol

IK Integrity Key

ILMI Interim Local Management Interface

IM_CM IP Multimedia Core Network

IMA Inverse Multiplexing on ATM

IMAP Internet Message Access Protocol

IMEI International Mobile Station Equipment Identity

IMEI International Mobile Equipment Identity

IMGI International Mobile Group Identity

IMS IP Multimedia Subsystem

IMSI International Mobile Subscriber Identity

IMT-2000 International Mobile Telecommunications - 2000

IMUI International Mobile User Identity



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IMUN International Mobile User Number

IN Intelligent Network

INAP Intelligent Network Application Part

IP Internet Protocol

IPBB IP Back Bone

IPET IP Exchange Terminal

IPR Intellectual Property Rights (Patents, etc.)

IPT All-IP Telephony

IPTGW IP Technology Gateway

IPUI International Portable User Identity

IPv4 Internet Protocol version 4

IPv6 Internet Protocol Version 6

ISC International Switching Centre

ISDN Integrated Services Digital Network

ISHO Inter System Hand Over

ISO International Standardisation Organisation

ISU Interface Signalling Unit

ISUP ISDN User Part

ITU International Telecommunication Union

ITU-R ITU-Telecommunication Union - Radiocommunication

ITU-T Telecommunication standardisation sector of ITU

Iub- Interface between BS and RNC

Iu-CS Interface between RAN and circuit-switched CN

Iu-PS Interface between RAN and packet-switched CN

Iur- Interface between two RNCsIWF Inter-Working Function

IWU Inter-Working Unit

K

K Individual Key

Kc Cipher Key

Ki Key Used to Calculate Signalled Response (SRES)

KPI Key Performance Indicator

L

LA Location Area

LAC a) Link Access Control; b) Location Area Code

LACC LAC for RAN Control Plane

LACU LAC for RAN User Plane

LAI Location Area Identity




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LAN Local Area Network

LAPD Link Access Protocol for the D channel

LAPDm Link Access Protocol for the (modified) Dm channel

LATA Local Access and Transport Area

LC Load Control

LCE Link Control Entity

LCS Location Services

LI Lengnth Indicator

LIG Legal Interception Gateway

LLC Logical Link Control

LLC-C Control Plane LLC

LLC-U User Plane LLC

LLE Logical Link Entity

Lm Traffic channel with capacity lower than Bm

LM Location Management

LPLMN Local Public Land Mobile Network (PLMN)

LPT Line Printer

LSSU Line Status Signalling Unit

M

M Marker

MAC Medium Access Control

MAFE Medium Access Function Entity

MAP Mobile Application Part

MB Message Bus

MBS Maximum Burst SizeMCC Mobile Country Code

M-CDR Mobility Management-Call Detail Record

MCF Mobile Control Function (ITU)

mCommerce Mobile Commerce

MCU Multipoint Control Unit

MD MacroDiversity or Mediation Device

MDC MacroDiversity Combiner

ME Mobile Equipment

MEHO Mobile Evaluated Handover

MExE Mobile (Station) Execution Environment

MFSU Multifrequency Signalling Unit

MGCF Media Gateway Control Functionality

MGCP Media Gateway Control Protocol



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MGW Media Gateway

MIB-II Management Information Base II

MIS Management Information System

MM Mobility Management

MMI Man Machine Interface

MML Man Machine Language

MMS Multimedia Messaging Service

MMSC Multimedia Messaging Service Centre

MNC Mobile Network Code

MNP Mobile Number Portability

MO Mobile Originated

MoU Memorandum of Understanding

MP-P MultiPoint-to-Point

MRF Multimedia Resource Function

MS Mobile Station (ME + SIM = MS)

MS ISDN Mobile Station ISDN Number

MS_PWR_CLASS MS Power Class. Parameter defining the power class of an MS expressed in thesame way AS the R-parameters

MS_RANGE_MAX Mobile Station Range Maximum handover criterion to determine the serving cell

MS_RXLEV_L Lower Receiver Level. Threshold of RXLEV received from the serving BS, belowwhich either power control or handover must take place to improve the cell quality

MS_TXPWR_CONF MS Transmitted RF Power Confirmation. Parameter sent by the MS to indicate itscurrent transmitted RF power level

MS_TXPWR_MAX_CCH Maximum allowed transmitted RF power for MSs to access the system until

commanded otherwise

MS_TXPWR_REQUEST MS Transmitted RF Power Request. Parameter sent by the BSS that commandsthe required MS RF power level

MSC Mobile (services) Switching Centre

MSCM Mobile Station Class Mark

MSRN Mobile Station Roaming Number

MSS Mobile Switching Centre Server

MSU Message Signalling Unit

MT a) Mobile Terminated; b) Mobile Terminal

MTP Message Transfer Part

MTP3 Message Transfer Part layer 3

MTP-3b Broadband Message Transfer Part 3

MUMS Multi-User Mobile Station

MUX Multiplexer




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MXU Multiplexer Unit

N

NAMP Nokia Artus Messaging Platform

NB Normal Burst

NBAP Node B Application Part

NDC National Destination Code

NE Network Element

NEMU Network Element Management Unit

NFS Network File System

NIP1 Network Interface Unit (PDH E1/T1/J1)

NIS1 Network Interface Unit (STM-1)

NITZ Network Identity and Time Zone

NIU Network Interface Unit

NIWU Network Interworking Unit

NMC Network Management Centre

NMS Network Management (Sub)system

NMT Nordic Mobile Telephone

NNI Network-Node Interface

NOLS Nokia On-Line Service

NRT Non-Real Time (Services)

NSAPI Network (layer) Service Access Point Identifier

NSS Network Switching Subsystem

NSS Network and Switching Subsystem

NWI Network Interface

OO&M Operations and Maintenance

OC Operation Code

OHG Operator Harmonisation Group

OMC Operations and Maintenance Centre

OMC Operations and Maintenance Centre

OMU Operation and Maintenance Unit

OPC Originating Point Code

OS Operating System

OSA Open Service Architecture

OSI Open System Interconnection

OSPF Open Shortest Path First

OSS Operation Support System

OSS Operation Subsystem



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OTDOA-IPDL Observed Time Difference of Arrival – Idle Period Downlink

P

P2P Person-to-Person

PACCH Packet Associated Control Channel

PAD Packed Assembly/Disassembly Facility

PAGCH Packet Access Grant Channel

Paging Group The set of MSs monitoring a particular paging block

PAU Primary Rate Access Unit

PBCCH Packet Broadcast Control Channel

PBN Packed Based Networks

PBX Private Branch Exchanges

PC Power Control

PCCCH Packet Common Control Channel

PCCH Paging Control Channel

PCH Paging Channel

PCM Pulse Code Modulation

PCN Personal Communications Network

PCPCH Physical Common Packet Channel

PCR Peak Cell Rate

PCS Personal Communication System

PDC Packet Data Communication

PDCH Packet Data Channel

PDG Packet Data Gateway

PDH Plesiochronous Digital Hierarchy

PDN Packet Data NetworkPDP Packet Data Protocol

PDTCH Packet Data Traffic Channel

PDU Protocol Data Unit

PHS Personal Handyphone System

PHY Physical Layer

PI Performance Indicator

PICH Paging Indicator Channel

PIM Personal Information Manager, Program Information Management

PIN Personal Identification Number

PLMN Public Land Mobile Network

PN Pseudo Noise

PNCH Packet Notification Channel

PNNI Private Network to Network Interface (Protocol)




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PPCH Packet Paging Channel

PPP Point to Point Protocol

PRACH Physical Random Access Channel

PS a) Packet Switched; b) Packet Scheduler

PSCH Physical Synchronisation Channel

PSPDN Packet-Switched Public Data Network

PSTN Public Switched Telephone Network

PT Payload Type

PTM Point-To-Multipoint

PTM-G PTM Group call

PTM-M PTM Multicast

PTM-SC PTM Service Centre

P-TMSI Packet Temporary Mobile Subscriber Identity

PTP Point-To-Point

PTT Push-To-Talk

PVC Permanent Virtual Circuit

Q

QoS Quality of Service

QPSK Quadrature Phase-Shift Keying (4-PSK)

R

RA Routing Area

RAB Radio Access Bearer

RACH Random Access Channel

RADIUS Remote Access Dial In User Service

RADIUS Remote Authentication Dial In User ServiceRAN a) Radio Access Network; b) RAN WG in JAFFA R2

RANAP Radio Access Network Application Part

RAND Random Number (Authentication)

RANMAP RAN Management Application Part

RAS Remote Access Server

RDBMS Relational Database Management System

RES Response

RFCH Radio Frequency Channel

RFN Reduced Time Division Multiple Access (TDMA) Frame Number

RIP Routing Information Protocol

RISC Reduced Instruction Set Computing

RL Radio Link

RLC Radio Link Control



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RLC-C Radio Link Control for Control Plane

RLC-U Radio Link Control for User Plane

RLP Radio Link Protocol

RM Resource Management

RN Roaming Number

RNC Radio Network Controller

RNS Radio Network System or Radio Network Subsystem

RNSAP Radio Network Subsystem Application Part

RNW Radio Network

RR Radio Resource or Receiver Ready

RRC a) Radio Resource Control; b) Radio Resource Connection

RRM Radio Resource Management

RRMU Radio Resource Management Unit

RSCN Radio Subchannel Number, Part of SAL Field

R-SGW Roaming Signalling Gateway

RSMU Resource and Switch Management Unit

RT Real Time

RTCP Real time Control Protocol

RTP Real time Transport Protocol

RTTs Radio Transmission Technologies

RXLEV Received Signal Level

RXLEV_ACCESS_MIN The minimum received signal level at a MS for access to a cell

RXLEV_MIN The minimum received signal level at a MS from a neighbouring cell for handoverto be permitted

RXLEV_NCELL Received signal level of neighbouring or current serving cell measured on the

BCCH carrierRXLEV_SERVING_CELL Received signal level in the serving cell measured on the Broadcast ControlChannel (BCCH) carrier

RXQUAL Received Signal Quality

RXQUAL_SERVING_CELL Received signal quality of serving cell

RXQUAL_SUB Received signal quality assessed over a subset of 12 Time Division Multiple Access (TDMA) frames

RXQUAL-FULL Received signal quality assessed over the full set of Time Division Multiple Access(TDMA) frames without a Slow Associated Control Channel (SACCH) block

S

SAAL Signalling ATM Adaptation Layer

SABM Set Asynchronous Balanced Mode

SACC/C8 Slow, SDCHH/8 Associated, Control Channel

SACCH Slow Associated Control Channel

SACCH/C4 Slow, Stand-alone Dedicated Control Channel/4) SDCCH/4 Associated, ControlChannel

SACCH/T Slow, Traffic Channel (TCH)-Associated, Control Channel




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SACCH/TF Slow, Traffic Channel (TCH/F)-Associated, Control Channel

SACCH/TH Slow, Traffic Channel (TCH/H)-Associated, Control Channel

SAP Service Access Point

SAPI SAP Indicator

SAR Segmentation and Reassembly Layer

SAT SIM Application Toolkit

SB Synchronisation Burst

SC Service Centre

SCCP Signalling Connection Control Part

SCCP Signalling Connection Control Part

SCCP-b Broadband Signalling Connection Control Part

S-CDR Serving GPRS Support Node-Call Detail Record

SCE Service Creation Environment

SCEP Service Creation and Execution Platform

SCH Synchronisation Channel

SCM Supply Chain Management

SCP Service Control Part (IN)

SCR Sustainable Cell Rate

SDCCH Stand-alone Dedicated Control Channel

SDCCH/4 SDCCH 4

SDCCH/8 SDCCH 8

SDH Synchronous Digital Hierarchy

SDMA Space Division Multiple Access – The method of dividing large regions into cellsand using one frequency in each cell

SDU Service Data Unit

SDW Switching Data Warehouse

SF Spreading Factor

SFN System Frame Number

SFU ATM Switching Fabric Unit

SGSN Serving GPRS Support Node

SIF Service Information Field

SIGTRAN Signalling Transport (IETF work group)

SIM Subscriber Identity Module

SIO Service Information Octet

SIP Session Initiation Protocol

SIR Signal to Interference Ratio

SLC Signalling Link Code

SLS Signalling Link Selection

SM a) Session Management; b) Short Message



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SM2M Submultiplexer/2 Mbps

SMG Special Mobile Group

SMM Session and Mobility Management

SMP Service Management Point

SMS Short Message Service

SM-SC Short Message Service Centre

SMSCB Short Message Service Cell Broadcast

SMS-GMSC Short Message Service Gateway MSC

SMS-IWMSC Short Message Service Interworking MSC

SMS-MO/PP Mobile Originated Short Messages

SMS-MT/PP Mobile Terminated Short Messages

SMS-PP Point-to-Point Short Message Service

SMSS Switching and Management Sub-System

SMTP Simple Mail Transfer Protocol

SN a) Subscriber Number; b) Serving Network

SNDCP Sub-Network Dependent Convergence Protocol

SNMP Simple Network Management Protocol

SOAP Simple Object Access Protocol

SoLSA Support of Localised Service Area

SP Signalling Point

SPC Signalling Point Code

SPDU Serving Profile Database Unit

SPMU Signal Processing Management Unit

SQN Sequence Number

SRC Smart Radio ConceptSRES Signed Response (Authentication)

SRNC Service RNC

SRRU Service Routing Register Unit

SS a) Subscriber Services; b) Supplementary Services

SS7 (Common Channel) Signalling System No 7

SSCF Service Specific Co-ordination Function

SSCOP Service Specific Connection Oriented Protocol

SSCS Service Specific Convergence Sublayer

SSP Service Switching Point

SSR Service Routing Register

SSSAR Service Specific Segmentation and Reassembly Sublayer

STM-1 Synchronous Transport Module-1

STP Signalling Transfer Point



Vocabulary

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TMUI Temporary IMUI

TOM Telecommunication Operations Map

TRAU Transcoder/Rate Adapter Unit

TRHO Traffic Reason Hand Over

TRX Transceiver

TRX Transceiver / Receiver

TS Time Slot

T-SGW Transport Signalling Gateway

TSL Timeslot

TTA Telecommunications Technology Association

TTC Telecommunications Technology Committee

TUP Telephone User Part

TXPRWR Transmit power; TX Power Level in the MS_ TXPWR_REQUEST andMS_TXPWR_CONF Parameters

U

UBR Unspecified Bit Rate

UDP User Datagram Protocol

UDP/IP User Datagram Protocol/Internet Protocol

UE User Equipment

UI Unnumbered Information (Frame)

UL Up Load

UMA Unified Mediation and Adaptation

UMS Universal Mobility Server

UMTS Universal Mobile Telecommunications System

UNI User-Network Interface

UPC Usage Parameter Control

UPS Uninterruptable Power Supply

URA UTRAN Registration Area

URAN UMTS Radio Access Network

URL Uniform Resource Locator

USAT UMTS SIM Application Toolkit

USIM UMTS Subscriber Identity Module

USSD Unstructured Supplementary Services Data

UT User Terminal

UTRAN UMTS Terrestrial Radio Access Network

Uu UE / UMTS - Air interface in 3G networks

UUS User-to-User Signalling

V

VAD Voice Activity Detection




VANG Verbal Announcement Generator

VAS Value Added Service

VBR Variable Bit rate

VBR-NRT Variable Bit Rate Non-Real Time

VBR-RT Variable Bit Rate Real Time

VC Virtual Channel

VCC Virtual Channel Connection

VCI Virtual Channel Identifier

VDU Visual Display Unit

VHE Virtual Home Environment

VLR Visitor Location Register

VLRU Visitor Location Register Unit

VMS Voice Mail System

VMSS Visited MSS

VoIP Voice over IP

VP Virtual Path

VPC Virtual Path Connection

VPCI Virtual Path Connection Identifier

VPI Virtual Path Identifier

VPLMN Visited PLMN

VPLMN Visited Public Land Mobile Network

W

WAN Wide Area Network

WAP Wireless Application Protocol

WCDMA Wideband Code Division Multiple Access – A 3rd Generation mobile servicesplatform based on a layered network protocol structure

WDU Winchester Disk Unit

WLAN Wireless Local Area Network

WLL Wireless Local Loop

WMSC Wideband MSC

WTA Wireless Telephony Application

X

XDSL Extended Digital Subscriber Line

XML Extensible Markup Language

XRES Expected Response

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