GSM Abbreviations

GSM/EDGE RAN - BR line

ReferenceSystem

Abbreviations

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Abbreviations

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The information in this document is subject to change without notice and describes only the product defined in the introduction of this documentation. This documentation is intended for the use of Nokia Siemens Networks customers only for the purposes of the agreement under which the document is submitted, and no part of it may be used, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Siemens Networks. The documentation has been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomes customer comments as part of the process of continuous development and improvement of the documentation.

The information or statements given in this documentation concerning the suitability, capacity, or performance of the mentioned hardware or software products are given "as is" and all liability arising in connection with such hardware or software products shall be defined conclusively and finally in a separate agreement between Nokia Siemens Networks and the customer. However, Nokia Siemens Networks has made all reasonable efforts to ensure that the instructions contained in the document are adequate and free of material errors and omissions. Nokia Siemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues which may not be covered by the document.

Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NO EVENT WILL Nokia Siemens Networks BE LIABLE FOR ERRORS IN THIS DOCUMENTA-TION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDI-RECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA,THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT.

This documentation and the product it describes are considered protected by copyrights and other intellectual property rights according to the applicable laws.

The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark of Nokia Corporation. Siemens is a registered trademark of Siemens AG.

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

Copyright © Nokia Siemens Networks 2006-2008. All rights reserved

f Important Notice on Product Safety Elevated voltages are inevitably present at specific points in this electrical equipment. Some of the parts may also have elevated operating temperatures.

Non-observance of these conditions and the safety instructions can result in personal injury or in property damage.

Therefore, only trained and qualified personnel may install and maintain the system.

The system complies with the standard EN 60950 / IEC 60950. All equipment connected has to comply with the applicable safety standards.

The same text in German:

Wichtiger Hinweis zur Produktsicherheit

In elektrischen Anlagen stehen zwangsläufig bestimmte Teile der Geräte unter Span-nung. Einige Teile können auch eine hohe Betriebstemperatur aufweisen.

Eine Nichtbeachtung dieser Situation und der Warnungshinweise kann zu Körperverlet-zungen und Sachschäden führen.

Deshalb wird vorausgesetzt, dass nur geschultes und qualifiziertes Personal die Anlagen installiert und wartet.

Das System entspricht den Anforderungen der EN 60950 / IEC 60950. Angeschlossene Geräte müssen die zutreffenden Sicherheitsbestimmungen erfüllen.

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Table of contentsThis document has 68 pages.

1 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 - 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38M. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Y - Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

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Abbreviations Abbreviations

Id:0900d8058025e5a1

1 Abbreviations

0 - 9

2G second generation

3G third generation

3GPP third generation partnership project

8PSK eight phase shift keying

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Abbreviations

A

A/D analog to digital

A2 subsystem A(bis) layer 2 control

A2EA asynchronous transfer mode adaption layer 2 endpoint address

AAL asynchronous transfer mode adaptation layer

AALn asynchronous transfer mode adaptation layer, type n

AALP audible alarm panel

ABC administration and billing center

Abis GSM interface between BTS and BSC

ABISCON Abis connector

ABR available bit rate

ABT asynchronous transfer mode block transfer

AC (1) access center

(2) access class

(3) alternating current

(4) antenna carrier

(5) authentication center

AC/DC alternating current/direct current converter

ACC (1) accounting

(2) automatic congestion control

ACCB alternating current connection box

ACCH associated control channel

ACDCP alternating current/direct current converter for base transceiver station plus

ACFC alarm collector and fan control

ACTP alarm collection terminal for extension/service racks

ACK (1) (positive) acknowledgement

(2) alarm connection kit

ACL advanced command language

ACLK advanced clock

ACLR adjacent channel leakage ratio

ACM (1) access control module

(2) adjacent cell measurements

ACMDC alternating current multiple direct current converter

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ACOM antenna combiner

ACP alternating current panel

ACPROTECT alternating current input lightning protection

ACPSC alternating current power supply and control

ACR adjacent cell relation

ACS (1) adjacent channel selectivity

(2) air conditioning system

ACSE association control service element

ACT (1) active

(2) alarm collection terminal

ACTA alarm collection terminal alarm board

ACTC alarm collection terminal connection board

ACTM alarm collection terminal master

ACTP alarm collection terminal processor

ADCH associated dedicated channel

ADI alarm distributor interface

ADJC adjacent cell

ADM add/drop multiplexer

ADP (1) alternating current/direct current converter panel

(2) automatic data processing

ADPCM adaptive differential pulse code modulation

AE alarm and error handling

AFC automatic frequency control

AFCP air flap control processor board

AFCS air flap control sensor board

AFS accounting file server

AGC automatic gain control

AGCH access grant channel

AGCM adjacent GSM cell measurement

AGCR adjacent GSM cell relation

AGIN agent interface

AGW A-interface gateway

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Abbreviations

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Abbreviations

AIMD additive increase/multiplicative decrease

AIN (1) advanced intelligent network

(2) automatic instance naming

AIS alarm indication signal

AISG antenna interface standards group

AKA authentication and key agreement

ALCAP (1) access link control application part

(2) access link control application protocol

ALCO alarm and control board

ALI automatic location identification

ALM alarm

ALMC alarm controller

ALS alarm status

AMB alarm and monitoring board

AMC advanced mezzanine card

AMCO amplifier multicoupler

AMP amplifier

AMPS advanced mobile phone services

AMP-SC amplifier supervising and control card

AMR adaptive multi rate

AMR-NB adaptive multi rate narrowband

AMReq adaptive multi rate equivalent

AMR-WB adaptive multi rate wideband

AMUX access multiplexer

AN access network

ANI automatic number identification

ANSI American national standards institute

ANT antenna

ANTDIV antenna diversity

AOC advice of charge

AOCC advice of charge - charging level

AOCI advice of charge - information level

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AP (1) application part

(2) application processor

(3) application program

API application programming interface

APL a programming language

APN access point name

APS (1) application program system

(2) automatic protection switching

ARFCN absolute radio frequency channel number

ARP (1) address resolution protocol

(2) asynchronous transfer mode resource control processor

ARPU average revenue per user

ARQ automatic repeat request

ARR adjacent radio network controller relation

ASC access service class

ASCI advanced speech call item

ASCII American standard code for information interchange

A-SHF A-shelf

ASIC application specific integrated circuit

ASN.1 abstract syntax notation one

ASP (1) adjacent signaling point

(2) asynchronous transfer mode switch control processor

ASSC asynchronous transfer mode signal switching controller

ASSREQ assignment request

AST administrative state

ASU antenna supervision unit

Asub interface between base station controller and transcoding and rate adaption unit

ATA advanced technology attachment

ATB alarm terminal board

ATCA advanced telecom computing architecture

ATM asynchronous transfer mode

ATOP automatic operator

AUC authentication center

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Abbreviations

AVCN attribute value change notification

AVS availability status

AWG American wire gauge

AWGN additive white gaussian noise

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B

BA (1) basic access

(2) BCCH allocation

BAIC barring of all incoming calls

BAL BCCH allocation list

BAOC barring of all outgoing calls

BAP base processor

BAT battery

BB backup battery

BBC baseband controller

BBSIG baseband signal processing board

BC (1) bearer capability

(2) broadcast center

BCC (1) base core controller

(2) base station/base transceiver station color code

(3) broadcast call control

BCCH broadcast control channel

BCCH-C broadcast control channel-constant

BCCH-V broadcast control channel-variable

BCD binary coded decimal

BCF base station control function

BCH broadcast channel

BCIE bearer capability information element

BCOM basic combining equipment

BCSM basic call state model

BCT basic craft terminal

BE (1) back end

(2) best effort

BECN backward explicit congestion notification

BER bit error rate

BERT bit error rate test

BF basic frame

12 A50016-G5100-A051-08-7635

Abbreviations

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Abbreviations

BFAP base station controller fuse and alarm panel

BG border gateway

BGP4 border gateway protocol 4

BH busy hour

BHCA busy hour call attempt

BIC bus interface controller

BIOS basic input/output system

B-ISDN broadband integrated services digital network

BISON bit switch for optimized network architecture

BLER block error rate

BLSC broaden line switch controller

BM boot management

BMC broadcast/multicast control

BMML basic man machine language

BOF blocking of optional features

BOIC barring of all outgoing international calls

BOIC-exHC except to home public land mobile network country

BP backplane

BPORT base station transceiver service port

BPSK binary phase shift keying

BR breaker

BRA bit rate adaptation

BS (1) base station

(2) bearer service

BSC base station controller

BSC1 base station controller of type BSC72 or BSC120

BSCE base station controller equipment

BSCI base station controller interface card

B-SHF B-shelf

BSIC base station identification code

BSMS BSC MSC managed object

BSN block sequence number

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BSS base station system

BSSAP base station system application part

BSSBTS base station system base transceiver station

BSSGP base station system GPRS protocol

BSSLAP base station system location services assistance protocol

BSSMAP base station system management application part

BSSMAP-LE base station system management application part - location services extension

BSSOMAP base station system operation and maintenance application part

BTC bus termination type C

BTS base transceiver station

BTSE base transceiver station equipment

BTSM base transceiver station equipment site manager

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Abbreviations

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Abbreviations

C

C_IDF central inventory data file format

C_TXT central text format

CA (1) carrier agent

(2) caution (alarm severity)

(3) cell allocation

CAC connection admission control

CAI charge advice information

CAMEL customized application for mobile network enhanced logic

CAN (1) controller area network

(2) customer access network

CAP (1) call processor

(2) customized application for mobile network enhanced logic application part

CAPEX capital expenditures

CAS channel associated signaling

CAT combined amplifier transceiver

CB (1) cell broadcast

(2) certification body

(3) coin box

(4) connection board

CBC cell broadcast center

CBCH cell broadcast channel

CBR constant bit rate

CBS cell broadcast service

CBSS controlling base station system

CC (1) call control

(2) channel code

(3) congestion control

(4) continuity check

(5) core controller

(6) country code

CCBS call completion to busy subscriber

CCC common channel control

CCCH common control channel

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CCCP core carrier unit link convert part

CCG central clock generator

CCG(A) central clock generator A

CCG(E) central clock generator E

CCH control channel

CCINT core carrier unit link interface

CCITT Comite Consultatif International Telegraphique et Telephonique

CC-Link core carrier unit link

CCLK common clock

CCMP common channel management processor

CCN configuration change notification

CCNC common channel signaling network control

CCNP common channel signalling network processor

CCP communication control port

CCPCH common control physical channel

CCPM central control processor module

CCS7 common channel signaling number 7 (also known as signaling system number 7)

CCSLINK core carrier star link

CCTrCH coded composite transport channel

CCTRL core controller

CCU channel codec unit

CD compact disc

CD/CA-ICH collison detection/channel assignment indicator channel

CDA circuit duplex asynchronous

CDE common desktop environment

CDF charging data function

CDMA code division multiple access

CDR (1) call detail records

(2) charging data records

CD-ROM compact disc read only memory

CDRV clock driver receiver

CDS circuit duplex synchronous

16 A50016-G5100-A051-08-7635

Abbreviations

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Abbreviations

CDVT cell delay variation tolerance

CE (1) channel element

(2) compatibilite electromagnetique

(3) computing element

(4) Conformité Européenne

CEC canadian electric code

CEIR central equipment identity register

CEP cell data processor

CEPT Conference Europeene des Administrations des Postes et des Telecommunications

CESCOBA circuit emulation switching core basis

CES circuit emulation service

CESoPSN circuit emulation service over packet switched network

CF call forwarding

CFB call forwarding on mobile subcriber busy

CFD call forwarding by default

CFN connection frame number

CFNRc call forwarding on mobile subscriber not reachable

CFNRy call forwarding on no reply

CFU call forwarding unconditional

CG charging gateway

CGF charging gateway function

CGI cell global identity

CGL carrier grade Linux

CGW common gateway

CH channel

CHC channel coding card

CHILL CCITT high level language

CI (1) cell identifier

(2) common interface

CID (1) cell identity

(2) cell information distribution

(3) connection identification

CIR carrier to interference ratio

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CK cipher key

CKSN ciper key sequence number

CLI command line interface

CLIP calling line identification presentation

CLIR calling line identification restriction

CLK clock

CLKD clock distributor

CLNS connectionless network service

CLP call processor

CLR cell loss ratio

CM (1) configuration management

(2) connection management

CMI common measurement initiation request

CMIP common management information protocol

CMIS common management information service

CMISE common management information service element

CMM (1) channel mode modify

(2) common memory module

CMOS complementary metal oxide semiconductor

CMS charging mediation server

CMUX cell multiplexer

CMUXE cell multiplexer extension

CMXG cell multiplexer group

CMY common memory

CN core network

CNI comfort noise insertion

CO charging origin

COAMCO co-duplexer and multicoupler

COBA core basis

COBAM core basis micro

COC communication controller

CODEC coder/decoder

18 A50016-G5100-A051-08-7635

Abbreviations

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Abbreviations

COLP connected line identification presentation

COLR connected line identification restriction

CONF conference call

CONS connection oriented network service

CONT common control

CORBA common object request broker architecture

COREM core base module

COREXT core link extension

COSA core satellite

CP (1) call processing

(2) central processing unit

(3) common control processor

(4) control processor

CPCH common packet channel

CPCS common part convergence sublayer

CPE customer premises equipment

CPEX control panel expansion

CPF control processor frame

CPH call party handling

CPI coordination processor interface

CPICH common pilot channel

CPRI common public radio interface

CPS common part sublayer

CPU central processor unit

CQI channel quality indicator

CR (1) code receiver

(2) critical (alarm severity)

CRC cyclic redundancy check

CRN (1) call reference number

(2) call related number

CRNC controlling radio network controller

CRNS controlling radio network subsystem

C-RNTI cell radio network temporary identifier

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CS (1) capability set

(2) circuit switched

(3) configuration server

(4) core switch

CSB common system bus

CSC (1) combined switching center

(2) core switch controller

CSCGRP central service channel group

CSD circuit switched data

CSDN circuit switched data network

CSE customized application for mobile network enhanced logic service environment

CSER change state event report

C-SHF C-shelf

CSI customized application for mobile network enhanced logic subscription information

CS-ICH common packet channel status indicator channel

CSM core switch module

CSMA/CD carrier sense multiple access with collision detection

CSN connection sequence number

CSP common channel signaling processor

CSU channel service unit

CT (1) call transfer

(2) call type

CTCH common traffic channel

CTD cell transfer delay

CTL craft terminal local

CTM cellular text telephone mode

CTP connection termination point

CTS control status

CU carrier unit

CUG closed user group

CW call waiting

20 A50016-G5100-A051-08-7635

Abbreviations

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Abbreviations

D

D900 digital mobile radio communication network, GSM 900 MHz

D1800 digital mobile radio communication network, GSM 1800 MHz

D1900 digital mobile radio communication network, GSM1900 MHz

DAMPS digital advanced mobile phone services

DAS digital announcement system

DAT digital audio tape

DB database

DBA database administration

DBMS database management system

DBR deterministic bit rate

DBSW download built-in software

DC (1) dedicated control

(2) direct current

DC5 direct current 5V

DCBCTRL direct current and battery controller

DCBCTRLM direct current battery controller micro

DCCH dedicated control channel

DCE data circuit terminating equipment

DCH dedicated channel

DCN data communication network

DCP (1) direct current panel

(2) direct current panel server

(3) duplex combiner kit connection panel

DCPA direct current converter power amplifier

DC-PDB direct current power distribution board

DCPSC direct current power supply and control

DCREFE direct current converter for agent remote power feeding

DCS (1) differential current switch

(2) digital clock supply

(3) digital communication system

D-CSI dialed service customized application for mobile network enhanced logic subscription information

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DCTPU direct current converter transceiver processor unit

DCU dual carrier unit

DCUCON dual carrier unit connector

DCUDUX dual carrier unit with duplexer

DCULG dual carrier unit without duplexer and with low gain

DCURG dual carrier unit without duplexer (R-GSM)

DD device drivers

DDF digital distribution frames

DE discard eligibility indicator

DEC digital echo compensator

DED default error definition

DG subsystem diagnosis

DHCP dynamic host configuration protocol

DHO diversity handover

DHT diversity handover trunk

DHTC diversity handover trunk controller

DHTM diversity handover trunk module

DIAMCO dual integrated amplifier multicoupler

DIDCTMA dual integrated amplifier multicoupler direct current tower mounted amplifier

DiffServ differentiated services

DIGGND digital ground

DILNA diversitiy low noise amplifier

DIP dual in-line package

DISK physical disk

DIU digital interface unit

DL downlink

DLCI data link connection identifier

DLJOB downlink job

DLM digital line module

DLU digital line unit

DLUB digital line unit B

DLUC control for digital line unit system

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Abbreviations

DM database management

DMC dynamic memory controller

DMR dedicated measurement report

DMTAP direct message transfer application part

DN dialing number

DNS domain name system

DP detection point

DPC destination point code

DPCCH dedicated physical control channel

DPCH dedicated physical channel

DPD digital predistortion

DPDCH dedicated physical data channel

DPPS data post processing system

DPRAM dual port random access memory

DPSK double power supply kit

DR drop rate

DRAC dynamic resource allocation control

DRIC digital radio interface card

DRNC drift radio network controller

DRNS drift radio network subsystem

DRX discontinuous reception

DS digital signal level

DS-CDMA direct sequence CDMA

DSCH downlink shared channel

DSCP differentiated services code point

DSL digital subscriber line

DSLAM digital subscriber line access multiplexer

DSMX digital signal multiplexer

DSP (1) D-channel signaling processor

(2) digital signal processor

DTAP direct transfer application part

DTCH dedicated traffic channel

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DTE data terminal equipment

DTI digital transmission interface

DTIM digital transmission interface module

DTLP dual trunk link peripheral

DTM dual transfer mode

DTMA dual tower mounted amplifier

DTMF dual tone multi frequency

DTSC digital transmission interface switching controller

DTX discontinuous transmission

DUAMCO duplexer amplifier multicoupler

DUAMCOF duplexer amplifier multicoupler, frequency division duplex

DUBIAS duplexer bias path

DUCOM duplex combiner

DUDCTMA duplexer amplifier multicoupler direct current tower mounted amplifier

DULNA duplexer amplifier multicoupler and related low noise amplifier

DUVSWR duplexer amplifier multicoupler voltage standing wave ratio

DUXMEG duplex filter for E-GSM

24 A50016-G5100-A051-08-7635

Abbreviations

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Abbreviations

E

En European digital signal hierarchy n

EAP external alarm protection

EB equivalent bandwidth

eBSC enhanced base station controller

Eb/No energy per bit to noise and interference ratio

Ec/No energy per chip to noise and interference ratio

ECU enhanced data rates for GSM evolution carrier unit

E-DCH enhanced dedicated channel

EDGE enhanced data rates for GSM evolution

EDISK enhanced hard physical disk on main control processor

EDP event detection point

E-DPCH enhanced dedicated physical channel

E-DPDCH enhanced dedicated physical data channel

EFD event forwarding discriminator

EFR enhanced full rate

EGPRS enhanced GPRS

E-GSM extended GSM

eIOSM enhanced input output switching module

EIR equipment identity register

EIRENE European integrated railway radio enhanced network

EIRP equivalent isotropic radiated power

EIU external interface unit

EM external memory

EMF electric and magnetic field

EMC electromagnetic compatibility

EMI electromagnetic interference

eMLPP enhanced multi level precedence and preemption

EMML extended man machine language

EMV enhanced measurement visualizer

EN European norm

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ENVA environmental alarm

envaBTSE environmental alarms base transceiver station equipment

EOTD enhanced observed time difference

EPB external peripheral bus

EPROM erasable programmable read only memory

EQ equalizer

ERTMS European rail traffic management system

ESAM ethernet switch and expansion alarms module

ESCC2 enhanced serial communication controller with two channels

ESD electrostatically sensitive device

eSMC enhanced shelf manager controller module

ESN electronical serial number

ETHCON ethernet connector module

eTRAU enhanced transcoding and rate adaption unit

ETS European telecommunication standard

ETSI European Telecommunications Standards Institute

26 A50016-G5100-A051-08-7635

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Abbreviations

F

F.A. functional address

F: frame

FAC final assembly code

FACCH fast associated control channel

FACH forward access channel

FALC framing and line interface component

FALP fan alarm panel

FAN fan unit

FANM fan module

FANP fan for base transceiver station plus

FBI final block indicator

FCC federal communications commission

FCCH frequency correction channel

FCR function control register

FCS frame check sequence

FCU fan control unit

FCUMAIN flexible carrier unit main part

FCUTR flexible carrier unit main transceiver

FD (1) feature description

(2) frequency downlink

(3) full rate data

FD-CDMA frequency division code division muliple access

FDD frequency division duplex

FDMA frequency division multiple access

FDN fully distinguished name

FDUAMCO flexible duplexer amplifier multicoupler

FE front end

FEC forward error correction

FECN forward explicit congestion notification

FER (1) failure event report

(2) frame erasure rate

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(3) frame error rate

FET field effect transistor

FG flame guard door

FH frequency hopping

FICOM filter combiner

FIFO first in first out

FlexCU flexible carrier unit

FLOC frequency locked

FM fault management

FMO functional management object

FMMON fault management monitoring

FN functional number

FNS file name segment

FO fiber optic

FOU fully outdoor unit

FP (1) fault protection

(2) frame protocol

(3) fuse panel

FPGA field programmable gate array

FPH freephone service

FR (1) failure rate

(2) frame relay

(3) full rate

FRAM flash random access memory

FRL frame relay link

FROM flash read only memory

FRP fault recovery program

FRU field replaceable unit

FS fixed station

FSN frame sequence number

FTAM file transfer and access management

FTN forwarded to number

28 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

FTNF filter combiner tunable narrowband filter

FTNFP filter combiner tunable narrowband filter for BTSplus

FTP file transfer protocol

FTSU frame temperature sensor unit

FVSWR filter combiner voltage standing wave ratio

FVSWRP filter combiner voltage standing wave ratio for BTSplus

FW firmware

FWB field wiring box

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G

GAP GSM access point

GC general control

GCA group call area

GCG group clock generator

GCN group call number

GCR group call register

GCU gaussian minimum shift keying carrier unit

GERAN GSM EDGE (enhanced data rates for GSM evolution) radio access network

GGSN gateway GPRS support node

GHC GPRS tunnel protocol header controller

GIC GPRS tunnel protocol IP controller

GIF graphical interchange format

GK gate keeper

GMLC gateway mobile location center

GMM GPRS mobility management

GMSC gateway mobile services switching center

GMSK gaussian minimum shift keying

GMUX GPRS tunnel protocol multiplexer

GND ground

GoS grade of service

GP granularity period

GPA GSM public land mobile network area

GPRS general packet radio service

GPS global positioning system

GPSU generic power supply unit

GR GPRS register

GSC gateway mobile services switching center

GSM (1) global system for mobile communications

(2) GPRS session management

GSMMGW GSM media gateway

GSM-R GSM railway

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

GSM-RE GSM railway extension

GSN GPRS support node

GSS GPRS switching subsystem

GT global title

GTP GPRS tunnel protocol

GTPM GPRS tunneling protocol module

GTT global title translation

GUI graphical user interface

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H

HA horizontal allocation

HAND handover recognition

HARQ hybrid automatic repeat request

HCS hierarchical cell structures

HDD hard disk drive

HDLC high level data link control

HEC header error correction

HEX heat exchanger

HF-DF high frequency distribution frame

HFN hyper frame number

HighBand high bandwidth mode

HLC high layer capability

HLR home location register

HLRc home location register/AC classic

HLRi home location register/AC innovation

HLRID home location register identity

HMI human machine interface

HMO (1) hardware related management object

(2) holdover mode

HO handover

HON handover number

HOP hot operation protocol

HOREQ handover request

HPA high power amplifier

HPDU high power duplexer unit

HPLMN home public land mobile network

HPU hand portable unit

HR half rate

HSCSD high speed circuit switched data

HSCX high level serial communication controller extended

HSDPA high speed downlink packet access

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

HS-DPCCH high speed dedicated physical control channel

HS-DSCH high speed downlink shared channel

HSDST high speed downlink shared channel trunk

HSN (1) handover sequence number

(2) hopping sequence number

HS-PDSCH high speed physical downlink shared channel

HSPRLC high speed packet radio link controller

HSS home subscriber server

HS-SCCH high speed shared control channel

HSUPA high speed uplink packet access

HT hilly terrain

HTML hypertext markup language

HTTP hypertext transfer protocol

HTTPS hypertext transfer protocol secure

HU height unit

HW hardware

HX heat exchanger

HYBRID hybrid extension

HYCOM hybrid combiner

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I

I/B interactive/background

I/Q in-phase/quadrature

IA incoming access

IC integrated circuit

ICB incomming calls barred within the closed user group

ICM in call modification

ICMP internet control message protocol

ID (1) identification

(2) identifier

IDC insulated displacement connector

IDF inventory data file

IDT inventory data table

IDU indoor device unit

IE information element

IEC International Electrotechnical Committee

IEEE Institute of Electrical and Electronics Engineers

IETF internet engineering task force

IF (1) information (alarm severity)

(2) interface

(3) intermediate frequency

IH input handler

iHLR iintegrated home location register

IMA inverse multiplexing for asynchronous transfer mode

IMC intranet mobile cluster

IMEI international mobile equipment identity

IMS (1) information management system

(2) interception management system

(3) IP multimedia subsystem

IMSI international mobile subscriber identity

IMT-2000 International Mobile Telecommunictions-2000

IN intelligent network

34 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

INAP intelligent network application part

INF trunk interface

INTENNA internal antenna

I/O input output

IOC input/output control

IOLI n I/O line interface module level n

IOP input/output processor

IOSM (1) I/O submodule

(2) international electrotechnical commission

IP (1) ingress protection

(2) intelligent peripheral

(3) internal protection

(4) internet protocol

IPA (1) interactive panel architecture

(2) internal patch antenna

IPC inter processor communication

IPDL idle period downlink

IPM intelligent peripheral management

IPMB intelligent peripheral management bus

IPMC intelligent peripheral management controller

IPMI intelligent peripheral management interface

IPv4 internet protocol version 4

IPv6 internet protocol version 6

IR incremental redundancy

ISDN integrated services digital network

ISHO inter system handover

ISO International Organization for Standardization

ISP internet service provider

ISUP integrated services user part

ITU International Telecommunications Union

ITU-T International Telecommunication Union, Telecommunication Standardization Sector

IWE:HS interworking equipment: high speed

IWF interworking function

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IWMSC interworking mobile services switching center

IXLT interface X.25 and local terminal interface

36 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

J

Jn Japanese plesiochronous digital signal hierarchy n

JOBLIST list of download jobs

JRE Java runtime environment

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K

Kc cipher key

KPI key performance indicator

38 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

L

Ln layer n

LnCTS layer n control time slot

LnR layer n relay function

LnTP layer n tunneling protocol

LA location area

LAC location area code

LAN local area network

LAPB link access protocol, balanced

LAPD link access protocol for D-channel

LAPDLE link access protocol for D-channel link equipment

LAPDm link access protocol on the Dm-channel

LCD liquid crystal display

LCS location services

LE (1) link equipment

(2) local exchange

LEA law enforcement agency

LED light emitting diode

LI (1) length indicator

(2) line interface

(3) link interface

LIC line interface card

LICD line card

LICDS line card spare

LID link identifier

LIET line interface blade E1/T1

LIETS line interface blade E1/T1 spare

LINF line interface

LIPA link interface for primary access

LIPAGE line protection agent

LISO line interface blade synchronous transport module - optical carrier

LLC logical link control

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LM line module

LMN location mark number

LMO logical management object

LMSI local mobile subscriber identity

LMT local maintenance terminal

LMU location measurement unit

LNA low noise amplifier

LNS layer n tunneling protocol network server

LO (1) local loopback

(2) local oscillator

LOC loss of continuity

LOD loss of cell delineation

LOF loss of frame

LOP loss of pointer

LOPT loss of path trace

LOS (1) line of sight

(2) loss of signal

LP lamp panel

LPA lightning protection alarm

LRU least replaceable unit

LSB least significant bit

LSW line switch

LTG (1) line/trunk group

(2) loadable timing generation

LTL local test loop

LU location update

LUP location update procedure

LVD (1) low voltage detection

(2) low voltage disconnection

LVDS low voltage differential signal

40 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

M

M: module

MA mobile allocation

MAC medium access control

MAIO mobile allocation index offset

MAL mobile allocation frequency list

MAP mobile application part

MBBCU multichannel baseband unit

Mbit/s mega bits per second

MBMS multiband broadcast multicast services

MBU message buffer unit

MBX management information base extensible markup language file

MCC mobile country code

MCG main clock generator

MCP main control processor

MCLG main clock generator

MCLK master clock

MCP main control processor card

MCPA multi carrier power amplifier

Mcps mega chips per second

MCR (1) maximum cell rate

(2) mobile call record

MCS (1) mass calling service

(2) modulation and coding scheme

M-CSI mobility management notification-customized application for mobile network enhanced logic subcription information

MCSL master console

MDF main distribution frame

MDUX multiple duplexer

ME (1) maintenance entity

(2) mobile equipment

MEF membrane filter

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MEG maintenance entity graph

MEMT memory of telephone processor

MF mediation function

MFC multifrequency code signaling

MFDUAMCO multistandard flexible duplexer amplifier multicoupler

MGW multimedia gateway

MHA mast head amplifier

MI measurement information

MIB management information base

MIC mobile internal call

MicroBTS micro base transceiver station

MIT management information tree

MJ major (alarm severity)

MK mounting kit

MLPP multi level precedence and preemption

MLSE maximum likelihood sequence estimation

MM mobility management

MMC mobile to mobile call

MMI man machine interface

MML man machine language

MMS multimedia messaging services

MN minor (alarm severity)

MNC mobile network code

MNP microcom networking protocol

MNRF mobile subscriber not reachable flag

MNRG mobile station not reachable for GPRS

MNRR mobile subscriber not reachable reason

MO (1) managed object

(2) mobile originated

MOC (1) managed object class

(2) mobile originated call

MOD magneto-optical disk

42 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

MOI managed object instance

MORANE mobile railway radio network for Europe

MORT managed object referring to test

MOT managed object under test

MP main processor

MPC main processor controller

MPCC multiple packet control unit

MPCU main processor control card

MPTY multi party service

MPU main processor unit

MS (1) mobile station

(2) mobile subscriber

MSB (1) media stream board

(2) most significant bit

MSC mobile services switching center

MSCI mobile services switching center interface

MSIN mobile subscriber identification number

MSISDN mobile subscriber integrated services digital network number

MSM main storage module

MSRN mobile subscriber roaming number

MSS mobile satellite services

M-SSP mobile service switching point

MSU (1) main supply unit

(2) message signaling unit

MSUDC main supply unit for direct current

MSWC mobile switching controller

MT (1) maintenance terminal

(2) mobile termination

MTBF mean time between failure

MTC mobile terminating call

MTP message transfer part

MTP3 message transfer part level 3

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MTS mobile telephony server

MUCO multicoupler

MUX multiplexer

MVI measurement visualizer

44 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

N

NACK negative acknowledgement

NAS (1) network access server

(2) network access signaling

(3) non access stratum

NB Node B

NBAP Node B application part

NBSC Node B switching controller

NCC network color code

NCELL neighboring cell

NCH notification channel

NCP network control protocol

NDC national destination code

NE network element

NEBS network equipment building system

NEC national electric code

NEy network entity

NM network management

NMC network management center

NMP network management processor

NMS network management solution

NMSI national mobile subscriber identity

NMT network maintenance terminal

NN network node

NNI network network interface

no number

NOB not on board

NOC network operations center

nob-RIU non on-board memory remote inventory unit

Node B base station

NP number portability

NPCI network protocol control information

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N-Record network entity record

NRT non real-time

NS network service

NSAPI network layer service access point identifier

NSDU network service data unit

NSEI network service entity identifier

NSM network service module

NSP network service part

NSS network switching subsystem

NSVC network service virtual connection

NSVCI network service virtual connection identifier

NSVL network service virtual link

NSVLI network service virtual link identifier

Nt (1) network termination

(2) notification

NTPM (1) network termination for pulse code modulation 30

(2) network termination primary access multiplex

NTPMGF (1) network termination for pulse code modulation 30 with optical interface

(2) network terminations for optical fiber

(3) network termination primary access multiplex fiber optics

NTPMKU network terminations for copper lines

NTW network

NUC nailed up connection

46 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

O

O&M operation and maintenance

OA outgoing access

OACSU off-air call setup

OAL operator alarm

OAM (1) operations, administration and maintenance

(2) operation and maintenance

OASI operator available serial interface

ob_RIU on-board remote inventory unit

ob-RIU on-board remote inventory unit

OC optical carrier

OC-n optical carrier level n

OCB outgoing calls barred within the closed user group

OCI operator controlled input

O-CSI originating customized application for mobile network enhanced logic subscription infor-mation

OC-VCXO oven controlled voltage controlled crystal oscillator

ODU outdoor device unit

OEM original equipment manufacturer

OER overvoltage protection external reset

OF overbooking factor

OLT originating line trigger

OMC operation and maintenance center

OMC-R operation and maintenance center for the radio subsystem

OMC-S operation and maintenance center for the switching subsystem

OMI operation and maintenance interface

OMP operation and maintenance processor

OMP-B operation and maintenance processor for base station system

OMP-S operation and maintenance processor for switching subsystem

OMS operation and maintenance system

OMT operation and maintenance terminal

OMT-B operation and maintenance terminal for the base station system

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OMT/N operation and maintenance terminal for national operation and maintenance center application

OMT-S operation and maintenance terminal for the switching subsystem

OMU operation and maintenance unit

OPC (1) originating point code

(2) own point code

OPDS open door sensor

OPEX operating expenditures

OPEXAL overvoltage protection external alarm

OS operating system

OSI open systems interconnection

OSP outside plant

OSS (1) operation support system

(2) operator specific services

OST operational state

OTDOA observed time difference of arrival

OTP open test platform

OTS operation and maintenance toolset

OVP overvoltage protection

OVP16 overvoltage protection with 16 external alarms

OVPT overvoltage protection and tracer

OVPTCOAX overvoltage protection and tracer 75 Ohm asymmetrical line

OVPTCOAXM overvoltage protection and tracer 75 Ohm asymmetrical line BS-82 eMicro

OVPTM overvoltage protection and tracer symmetrical line BS-82 eMicro

48 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

P

P parity

PA power amplifier

PABX private automatic branch exchange

PAD packet assembler disassembler

PAGCH packet access grant channel

PAI prompt alarm indication

PAMR public access mobile radio

PBCCH packet broadcast control channel

PBGT power budget

PBX private branch exchange

PC power control

PCB printed circuit board

PCCC parallel concatenated code

PCCCH packet common control channel

PCCCON power control card controller connector

PCCH packet control channel

PCH paging channel

PCI (1) peripheral component interconnect

(2) preemptive capability indicator

PCK packet control acknowledgement

PCM pulse code modulation

PCMn puls code modulation with n time slots

PCMA pulse code modulation line - A interface

PCMCIA personal computer memory card international association

PCMG pulse code modulation line - Gb interface

PCMS pulse code modulation line - Asub interface

PCMT pulse code modulation transcoding and rate adaption unit

PCP (1) peripheral control platform

(2) processor control panel

PCR (1) peak cell rate

(2) preventive cyclic retransmission

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PCS (1) personal communication system

(2) personalization center for subscriber identification module

(3) processor control switch

PCU packet control unit

PD packet dispatching

PDAS packet downlink assignment

PDB power distribution box

PDCH packet data channel

PDCP packet data convergence protocol

PDF portable document format

PDH plesiochronous digital hierarchy

PDN (1) packet data network

(2) public data network

PDP packet data protocol

PDT packet data terminal

PDTCH packet data traffic channel

PDU (1) packet data unit

(2) power distribution unit

(3) protocol data unit

PE protection earth

PEM power entry module

PFC packet flow context

PFI packet flow identifier

PFM packet flow manager

P-GSM primary GSM

PH packet handling

PHY physical layer

PIC preselected interexchange carrier

PICMG peripheral component interconnect industrial computer manufacturers group

PICH page indicator channel

PID (1) packet identification

(2) product identification data

PIN personal identification number

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

PL priority level

PLL phase locked loop

PLLH phase locked loop oscillator high performance

PLMN public land mobile network

PM performance management

PMO (1) packet measurement order

(2) plesiochronous mode

PMR private mobile radio

PN pseudo noise

PNCH packet notification channel

PO packet oriented

POE power over ethernet

PPCC peripheral processor common channel

PPCH packet paging channel

PPCU peripheral packet control unit

PPLD peripheral processor for link access protocol for D-channel

PPP (1) peripheral preprocessor

(2) point to point protocol

PPS prepaid service

PPXL peripheral processor link access protocol for D-channel/signaling system number 7

PPXU peripheral processor used for peripheral packet control unit evolution

PPXX peripheral processor xx board

PRACH physical random access channel

PRBT personalized ring back tone

PROVNO service provider number

PRS procedural status

PS (1) packet switched

(2) power splitter

(3) power supply

(4) puncturing scheme

PSAP public safety answering point

PSDN packet switched data network

PSI (1) packet system information

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(2) processor switch interface

(3) provided subscriber information

PSK phase shift keying

PSN packet switched network

pSOS plug-in silicon operating system

PSPDN packet switched public data network

PSTN public switched telecommunication network

PSU power supply unit

PTCCH packet timing advance control channel

PTCH packet traffic channel

PTM point to multipoint

P-TMSI packet temporary mobile station identity

PTP point to point

PTPPKF point to point packet function

PTR packet timeslot reconfigure

PU (1) payload units

(2) processing unit

PUAS packet uplink assignment

PVC permanent virtual connection

PVI preemptive vulnerability indicator

PW (1) password

(2) pseudowire

PWRC power control

PWRD power distributor

PWRS power supply

PWRST power stage

52 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

Q

Q3 interface for managing network elements

QA queuing allowed indicator

QAM quadrature amplitude modulation

QoS quality of service

QPSK quadrature phase shift keying

QTLP quadruple trunk line periphera

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R

RA (1) radio access

(2) rate adaption

(3) routing area

RAB radio access bearer

RAC routing area code

RACH random access channel

RADIUS remote authentication dial-in user service

RAI (1) remote alarm indication

(2) routing area identity

RAL rack alarm

RAM random access memory

RAN radio access network

RANAP radio access network application part

RAND random number

RAS (1) registration and administration status

(2) reliability availability survivability

(3) remote access server

(4) remote alarm signaling

RAT radio access technology

RAU routing area update

RB radio bearer

RC Radio Commander

RCAP rack cabling access panel

RCD residual current device

RCL reference congestion limit

RDI remote defect indication

RDO rack door open

REC receive error

REMINV remote inventory

REP repeater

RET remote electrical tilt

REQ request

54 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

RF radio frequency

RFA rectifier fail

RFCH radio frequency channel

RFRX radio frequency receiver unit

R-GSM railway GSM

RIU remote inventory unit

RJ registered jack

RL radio link

RLC (1) radio link control

(2) regional logistic center

RLCP radio link control protocol

RLP radio link protocol

RNC radio network controller

RNC-ID radio network controller identity

RNL radio network layer

RNS radio network subsystem

ROI remote operation interface

ROM read only memory

ROSE remote operations service element

RR (1) radio regulations

(2) radio resource management

RRC radio resource control

RRM radio resource management

RSCP routing services control point

RSS radio subsystem

RSSI radio subsystem interface

RSSU radio server slider unit

RT real time

RTM rear transition module

RTP real-time transport protocol

RTSK routing task

RTT round-trip time

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RTWP received total wideband power

RX receiver

RXA analog receiver board

RXAMCO receiver antenna module and multicoupler

RXAMOD receiver antenna module

RXCA receive path cascading output

RXDIV receive diversity

RXFIL receiver frequency bandpass filter

RXMUCO receiver multicoupler

RxTxDiv receiver transmitter diversity

56 A50016-G5100-A051-08-7635

Abbreviations

Id:0900d8058025e5a1

Abbreviations

S

S/N signal to noise ratio

SAC service area code

SACCH slow associated control channel

SAI (1) service alarm indication

(2) service area identifier

SAL shelter alarm

SAP service access point

SAPI service access point identifier

SAS secure application service

SB synchronization burst

SBS standby status

SBSS serving base station system

SC (1) switch commander

(2) suspension cause

SCA smart carrier allocation

SCAP shelter cable access panel

SCC (1) serial communication controller

(2) smart cell configuration

SCCH shared control channel

SCCCON small computer system interface controller connector

SCCP signalling connection control part

SCCPCH secondary common control physical channel

SCDMA synchronous CDMA

SCE service creation environment

SCER state change event report

SCH synchronization channel

SCI subscriber controlled input

SCM service class mark

SCN sub-channel number

SCP service control point

SCR sustainable cell rate

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SDCCH stand-alone dedicated control channel

SDH synchronous digital hierarchy

SDL specification and description language

SDT structured data transfer

SDTMA single feeder dual tower mounted amplifier

SDU (1) service data unit

(2) signaling data unit

SE system element

Sector telecommunication standardization

SELIC serial link interface controller

SET secure electronic transaction

SF sales feature

SFC single feeder configuration

SFP small form factor pluggable

SGSN serving GPRS support node

SGW signaling gateway

ShMC shelf management controller

SHMM shelf manager mezzanine

SI (1) serial interface

(2) service indicator

(3) system information

SIB system information block

SILT signaling link terminal

SIM subscriber identification module

SIMP signaling management processor

SIPRO signal processing unit

SIR signal to interference ratio

SIS shelter in service

SLA service level agreement

SLC signaling link code

SLR (1) serving GPRS support node location register

(2) subscriber location register

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

SM (1) security management

(2) session management

(3) short messages

(4) signaling management

SMA sub miniature Type A radio frequency connector

SMAC switching module and clock generator

SMC (1) security management center

(2) sub miniature Type C radio frequency connector

SMLC serving mobile location center

SMP service management point

SMS (1) service management system

(2) short message service

SMSC short message service center

SMS-CB short message service cell broadcast

SMS-MO short message service mobile originated

SMS-MT short message service mobile terminated

SN (1) subscriber number

(2) switching network

SNn switching unit with n kbit/s submultiplexing

SNAP (1) subnetwork attachment point

(2) switching network advanced performance

SNMP simple network management protocol

SNR serial number

SONET synchronous optical network

SP (1) server processor

(2) signaling point

(3) speech path

SPC signaling point code

SPOTS support of planing, operation & maintenance and traffic analysis system

SPU signal processing unit

SQL structured query language

SR (1) service rack

(2) success rate

SRAM static random access memory

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SRCOMT source operation and maintenance terminal

SRES signed response

SRF specialized resource function

SRI send routing information

SRNC serving radio network controller

SRNS serving radio network subsystem

SS supplementary services

SS7 signaling system number 7

SSD system status display

SSL secure sockets layer

SSNC signaling system network control

SSN (1) sub slot number

(2) subsystem number

SSP service switching point

SSS switching subsystem

STC signaling terminal control

STLP super trunk line peripheral card

STM-n synchronous transport module level n

STP signaling transfer point

STS synchronous transport signal

SVC supervisory controller

SW software

SWI software image

SWL software load

SWM software management

SYNC synchronization source

SYNE synchronization source external

SZ subsystem synchronization

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

T

Tn North American plesiochronous digital signal hierarchy n

TA (1) terminal adapter

(2) timing advance

TAB tabulator

TAC (1) technical assistance center

(2) timing adjustment control

(3) type approval code

TAD test adapter

TAF terminal adapter function

TAI timing advance index

TB (1) tail bit

(2) time base unit

TBF temporary block flow

TC (1) terminal control

(2) transaction capabilities

TCAP transaction capability application part

TCGQ transcoder group quartet

TCH traffic channel

TCP transmitted carrier power

TCP/IP transmission control protocol/internet protocol

T-CSI terminating customized application for mobile network enhanced logic subscription information

TD time division

TDD time division duplex

TDM time division multiplex

TDMA time division multiple access

TDP trigger detection point

TDPC telephony and distributor processor card

TE (1) terminal equipment

(2) test equipment

TEI (1) terminal endpoint identifier

(2) terminal equipment identifier

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TEID tunnel end point identifier

TELNET telecommunication network

TERM termination

TFAP transcoding and rate adaption unit fuse and alarm panel

TFI temporary flow identity

TFTP trivial file transfer protocol

TIF terrestrial interface module

TIF-CSI translation indicator flag - CAMEL subscription information

TIFMW terrestrial interface for microwave

TIFNTPM terrestrial interface for NTPM

TLLI temporary logical link identifier

TLS transport layer security

TLT terminating line trigger

TMA tower mounted amplifier

TMB temperature management board

TMN telecommunication management network

TMSI temporary mobile subscriber identity

TMU timing measurement unit

TN timeslot number

TNF tunable narrowband filter

TNL transport network layer

TO timing offset

TOP temporary overpower

TPC (1) transmit power control

(2) transport point code

TPU transceiver processor unit

TPWR transcoding and rate adaption unit power

TRAC transcoding and rate adaption card

TRAU transcoding and rate adaption unit

TRAU1 transcoding and rate adaptation unit of type standard TRAU or HC TRAU

TRX transceiver

TRXA transceiver analogue

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

TRXD transceiver unit digital

TS (1) teleservice

(2) time slot

(3) temperature switch

TSC (1) technical service center

(2) training sequence code

TSL time slot

TSLA time slots on the A-interface

TSTD time switched transmit diversity

TTA tower top amplifier

TTY tele type writer

TU (1) test unit

(2) typical urban

TUP telephone user part

TX transmittter

TXA transmitter board analog

TxDiv transmittter diversity

TXFIL transmit path bandpass filter

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U

UnC user network interface layer n controller

UARFCN UTRA absolute radio frequency channel number

UART universal asynchronous receiver/transmitter

UBEX universal bus extender

UC up-converter

UC-ID UTRAN cell identity

U-CSI unstructured supplementary service data customized application for mobile network enhanced logic subscription information

UDI unrestricted digital information

UDP user data protocol

UDTRQ unit data request

UE user equipment

UG-CSI unstructured supplementary service data general customized application for mobile network enhanced logic subscription information

UI user interface

UIC Union International des Chemins de fer

UID (1) unique identity

(2) user identity

UL uplink

Um air interface

UMR universal mobile telecommunications system mobisphere release

UMTS universal mobile telecommunications system

UNI user network interface

UP user part

UPC usage parameter control

UPM user plane module

UPS uninterruptible power supply system

URL uniform resource locator

USB universal serial bus

USC uplink seized command

USF uplink state flag

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

USIM user services identity module

USSD unstructured supplementary service data

UTRA universal mobile telecommunication system terrestrial radio access

UTRAN universal mobile telecommunication system terrestrial radio access network

Uu radio interface between universal mobile telecommunication system terrestrial radio access network and the user equipment

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V

VA vertical allocation

VAD voice activity detection

VAM version attachment mechanism

VBS voice broadcast service

VC (1) Village Connection

(2) virtual channel

(3) virtual container

VCC virtual channel connection

VCI virtual channel identifier

VCO voltage controlled oscillator

VCXO voltage controlled crystal oscillator

VDE Verband Deutscher Elektrotechniker

VGA video graphics array

VGCS voice group call service

VLR visitor location register

VMS voice mail system

VMSC visited mobile services switching center

VP virtual path

VPI virtual path identifier

VPLMN visited public land mobile network

VPN virtual private network

VQE voice quality enhancement

VSWR voltage standing wave ratio

VSWRP voltage standing wave ratio plus

VT visited mobile switching centre terminating

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

W

WAN wide area network

WAP wireless application protocol

WARP twin advanced mezzanine card carrier processor

WCDMA wideband CDMA

WDT watch dog timer

WGK wireless intranet gate keeper

WLAN wireless local area network

WPS wireless priority service

WWW world wide web

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X

XCONNECT multidrop-star cross connect

XID exchange identification

XML extensible markup language

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Abbreviations

Id:0900d8058025e5a1

Abbreviations

Y - Z

ZDT zip data transfer

Documents

GSM Abbreviations