移動(dòng)廣播系統(tǒng)相關(guān)術(shù)語

Terminology

1000Base-T

Standard(IEEE802.3ab)forGigabitEthernetoveranunshieldedtwisted-pairwire

18Crypt

Thenamegiventotheserviceprotectionspecificationsupportedbyagroupof18companies(alsoknownas18C).18CryptisspecifiedintheDVBIPDCstandard.CorrespondingprofileintheOMABCASTstandardiscalledDRMprofile.

AAA

Authentication,Authorisation,andAccounting.Facilitythatprovidesaninterfacebetweenthedevicesandsecurityserversthroughwhichaccesscontrolcanbesetup.AAAprovidesthedevicewithinformationthatisusedtoauthenticatehostsorusers(authentication),toassignnetworkprivileges(authorisation),andtorecordusernetworkactivity(accounting).

AAC,eAAC+

AdvancedAudioCoding.AAC+hasahighercodingefficiencyforAACandeAAC+isenhancedAAC+formobilespeechandmusic.

AES

AdvancedEncryptionStandard.USgovernmentstandardforasymmetric

cryptographicalgorithm,beingdraftedbytheNationalInstituteofStandards

andTechnology(NIST).AdvancedEncryptionStandardreplacestheData

EncryptionStandard(DES).Itsupportskeylengthsrangingfrom128to256

bits,andvariable-lengthblocksofdata.

AJP

ApacheJServProtocol

AMR-WB

Adaptivemulti-ratewideband

ALC

AsynchronousLayeredCoding.Amassivelyscalablereliablecontentdeliveryprotocol.ALCcombinestheLayeredCodingTransport(LCT)buildingblock,amultipleratecongestioncontrolbuildingblockandtheForwardErrorCorrection(FEC)buildingblocktoprovidecongestioncontrolledreliableasynchronousdeliveryofcontenttoanunlimitednumberofconcurrentreceiversfromasinglesender.

API

Applicationprogramminginterface

ARL

CertificationAuthorityRevocationList.AlistofrevokedCertificationAuthoritycross-certificates.

ASI

Asynchronousserialinterface.InterfacebetweenIPE10andtheDVBbroadcastnetwork

ASM

AutomaticStorageManagement

Authentication

Theprocessofdeterminingwhetherauserorterminalidentityiswhatitisdeclaredtobe.

Authorization

Theprocessofgrantingordenyingaccesstoaservice.

BAM

BroadcastAccountManager

Bluetooth

Technologydesignedtobeembeddedinelectronicdevicesinordertoprovidewirelessandseamlessconnectionsovershortdistances,thusprovidinganalternativetocable-basedinterfacescurrentlyinusetolinkcomputersandcomputerperipherals.

Bundle

IntheNokiaMobileBroadcastSolution,aservicebundlecorrespondstoaTV/radiochannelpackage.DifferentmobileTVservicesarebundledtogetherandassignedtoserviceoperatorstobesoldtotheconsumersaschannelpackages.

BSF

BootstrappingServerFunctionpartofGAA/GBAGenericBootstrappingArchitecture.

BSM

BroadcastServiceManager

CA

CertificationAuthority

Contentprovider

AuserrolewithregardstotheBroadcastServiceManager:Anentityfeedinginstreamingcontentand/orcontent-relatedmetadata.

CDR

Chargingdatarecord.Recordgeneratedbyanetworkelementforthepurposeofbillingasubscriberfortheprovidedservice

CEK

ContentEncryptionKey

Cell

AcellcorrespondstothefootprintofanIPencapsulator.Itisageographicalarea,whichintheDVB-Hnetworkcanbeupto50kilometresindiameter.Withinacell,oneormultipletransmittersbroadcasttheDVB-HtransportstreamgeneratedbytheIPencapsulator.ChannelEachtimesliceinthetransportstreamrepresentsabandwidthchannel,eachofwhichcancarryseveralconcurrentsessionsconsistingofoneormoreIPstreams.

Chargingmodule

AgenerictermusedforthecodemodulewhichimplementsthechargingAPIprovidedbytheBAMserverandisresponsiblefortheend-userchargingandCDRcreation.

Chargingsystem

Agenerictermusedforallproductsandservicesthatcanberesponsibleforchargingtheuserfortheservicesused.ExamplesofchargingsystemsincludeNokiaChargingCenter(NCC)andOnlineServiceController(OSC).

CIDR

Classlessinterdomainrouting;classlessrouting.Routingprotocolwhichallowsthegroupingofroutersinordertocutdownonthequantityofroutinginformationcarriedbythecorerouters.

CLI

CommandlineinterfaceConstellationSpecifiestheconstellationpatternusedonaterrestrialdeliverysystem.Aconstellationpatternordiagramisarepresentationofadigitalmodulationschemeinacomplexplane.

CLOG

CentralisedLogger

CMLA

ContentManagementLicenseAdministrator.AlicensingandcomplianceentityformedtoprovideafullsolutionimplementationOMADRMversion2.0interoperabilityspecification.

CPU

Centralprocessingunit

Datacastoperator

AuserrolewithregardstotheBroadcastServiceManager(BSM):AnentityoperatingaBSMinstanceconnectedtoatleastonecontentproviderandatleastonenetworkoperator.

cPCI

Compactperipheralcomponentinterconnect

CRL

CertificateRevocationList.Listofrevokeddevicecertificates.

CRS

ClusterRegistryDisks

CS-I

CustomerServiceApplicationInterface

Datacastoperator

ArolewithintheNokiaMobileBroadcastSolution.AnorganisationthatoperatestheBSMtomanagethecontenttrafficonthemobilebroadcastplatform

Datacastsystem

BroadcastServiceManager(BSM)

DCO

Datacastoperator

DDRSDRAM

Dualdataraterandomaccessmemory.randomaccessmemory(RAM)orsynchroniseddynamicrandomaccessmemory(SDRAM)thattransfersdataonbothclocktransitions.

DVB-H

Digitalvideobroadcast–handheld.Technicalspecificationforbringingbroadcastservicestohandheldreceivers(seeETSIEN302304).

DES

Dataencryptionstandardalgorithm.Symmetriccryptographicalgorithmthatconvertsacharacterstringintopiecesof64bits,scramblesthebitsandcomputesanewcharacterstringfromthemwithmulti-phaseformulas.

Delta-t

Delta-tinformationisthetimefromthetransportpacketcarryingthefirstbyteofthecurrentMPEsectionorMPE-FECsectiontothetransportpacketcarryingthefirstbyteofnextburst(seeETSIEN301192[6]).

DDR

Dualdatarate,dualdataraterandomaccessmemory.Randomaccessmemory(RAM)orsynchroniseddynamicrandomaccessmemory(SDRAM)thattransfersdataonbothclocktransitions.

DDRSDRAM

Dualdataraterandomaccessmemory.randomaccessmemory(RAM)orsynchroniseddynamicrandomaccessmemory(SDRAM)thattransfersdataonbothclocktransitions.

DMZ

Demilitarisedzone.Computerhostorsmallnetworkbetweenacompany'sprivatenetworkandtheoutsidepublicnetworkthatpreventsoutsideusersfromgettingdirectaccesstoaserverthatcontainscompanydata.

Dopplershift

Magnitudeofthechangeinfrequencyofasignalorwavelengthofawave,causedbyachangeinthedistancebetweenthesourceandthereceiver..

DRM

DigitalRightsManagement.AnOMAstandardfordigitalprotectionofcontent.InBroadcastServiceManagerrelease3.0,theprotectionschemeisbasedonOMADRMstandardrelease2.0.

DST

DaylightSavingTime

ECS

E-CommerceSystem

EIT

Eventinformationtable

ESG

ElectronicServiceGuide

Externalauthorizationadapter

Aplug-inthatimplementstheAuthorisationAPIandintegratesBAMintothesubscriberdatabase.

ETSI

EuropeanTelecommunicationsStandardsInstitute.EuropeanstandardsorganisationthatproducesEuropeanstandardswhichareappliedandacceptedintheareaoftelecommunications.

FEC

Forwarderrorcorrection.TechniqueallowingthereceivertocorrecterrorsoccurringonatransmissionchannelwithoutrequiringretransmissionofthedataFECconsistsoftransmittingthedatainanencodedformsothattheredundancyaddedbythecodingallowsthedecodingtodetectandcorrecterrors.

FLUTE

FileDeliveryoverUnidirectionalTransport–AprotocolfortheunidirectionaldeliveryoffilesovertheInternet,whichisparticularlysuitedtomulticastnetworks.BuildsonALC.

FreeBSD

AdvancedBSDUNIXoperatingsystemfortheIntelcompatible(x86),DECAlpha,andPC-98architectures

FW

Firewall

Guardinterval

Guardintervalsareusedtoensurethatdistincttransmissionsdonotinterferewithoneanother;theirpurposeistointroduceimmunitytopropagationdelays,echoesandreflections,towhichdigitaldataisnormallyverysensitive.

GUI

Graphicaluserinterface

GB

Gigabyte

GPRS

Generalpacketradiosystem

GUI

Graphicaluserinterface

Guardinterval

Guardintervalsareusedtoensurethatdistincttransmissionsdonotinterferewithoneanother;theirpurposeistointroduceimmunitytopropagationdelays,echoesandreflections,towhichdigitaldataisnormallyverysensitive.

H.263

Lowbitratevideo-codingstandardapplicabletomultimediasystemsovervariouskindsoftransporttypes

H.264

ITU-Tstandardisedvideocompressionprotocol

H.264/AVC

H.264isanITU-Tstandardizedvideocompressionprotocol,whileAVCrelatestotheISO/IECMPEGsideofthepartnershipprojectthatcompletedtheworkonthestandard.

HLR

Homelocationregister,acentraldatabasethatcontainsdetailsofeachmobilephone

subscriberthatisauthorizedtousetheGSMandorWCDMAcorenetwork.

HTTP

Hypertexttransferprotocol.ProtocolutilisingTCP/IPthatenablesthetransferofHTMLfiles.

HTTPisusedinWWWservices.

HTTPS

Hypertexttransferprotocol,secure.HTTPthatsupportsthesendingofindividualmessagessecurelyovertheweb.InsecureHTTP,thesecuresocketlayerisusedasasublayerundertheregularHTTPapplicationlayering.

IETF

InternetEngineeringTaskForce.Internationalorganisationconsistingofover80workinggroupsresponsiblefordevelopingInternetstandards.

IGMP

InternetGroupManagementProtocol.ProtocolusedbyIPhoststoreporttheirmulticastgroupmembershipstoanadjacentmulticastrouter

IMEI

Internationalmobileequipmentidentity.Identitywithwhichthemobilestationcanbeuniquelyidentifiedasapieceorassemblyofequipment.

IMSI

Internationalmobilesubscriberidentity.Uniquesubscriptionidentifierthatconsistsofthenationalmobilesubscriberidentity(NMSI)andthemobilecountrycode(MCC).

INT

IP/MACnotificationtable

IP

Internetprotocol.NetworklayerprotocolintheTCP/IPstackthatoffersaconnectionlessinternetworkservice.

IPDC

IPdatacasting.IP-basedbroadcasttechnologywhichenablescost-effectiveandefficientdistributionofdigitalcontenttomassaudiences.

IPE

IPencapsulator

IPSec

Internetprotocolsecurity;IPsecurityprotocol.ProtocolthatprovidesInternetsecurityarchitecturefordataconfidentiality,dataintegrity,anddataauthenticationtosupportsecureexchangeofpacketsattheIPlayer.IPv4,IPv6InternetProtocolversion4,InternetProtocolversion6.

IPv4,IPv6

Internetprotocol,versions4and6

ISMA

InternetStreamingMediaAlliance

ISMACryp

InternetStreamingMediaAlliancespecificationthatdefinesanend-to-endcontentencryptionsystemformediacarriedoverRTPstreamsandISObasedmediafiles.

ISO

InternationalOrganizationforStandardization.Non-governmentalworldwideorganisationofnationalstandardsbodieswhoseworkresultsarepublishedasinternationalISOstandards.JitterShort-termnon-cumulativevariationsofthesignificantinstantsofadigitalsignalfromtheiridealpositionsintime.

JavaRMI

Javaremotemethodinvocation.Applicationprogramminginterface(API)thatenablesaJavaprogramrunningononecomputertoaccesstheobjectsandmethodsofanotherJavaprogramrunningonadifferentcomputer.

Jitter

Short-termnon-cumulativevariationsofthesignificantinstantsofadigital

signalfromtheiridealpositionsintime.

JRE

JavaRuntimeEnvironment

Keystream

Amessagebroadcastalongsideaprotectedservice,carryingkeymaterialtodecryptandoptionallyauthenticatetheservice.

KVMswitch

Keyboard,video,mouseswitch.Hardwaredevicethatallowsasinglekeyboard,videodisplaymonitor,andmousetobeswitchedtocontrolmorethanonecomputerattime

LAN

Localareanetwork

MAC

Mediaaccesscontrol.Localnetworkcontrolprotocolthatgovernsstationaccesstoasharedtransmissionmedium.

MCC

Mobilecountrycode.Codeuniquelyidentifyingthecountryofdomicileofthemobilesubscriber.

MBS

MobileBroadcastSolution

Mediatitle

AMediaTitlecanbeareferencetoanicon,pictogram,animation,webpage,orGZIP-compressedwebpage.WithintheNokiaMobileBroadcastSolution,amediatitleisanimagefilethatcanbeassociatedwithservices,programs,andbundles,oracompressedwebpagethatcanbeassociatedtoaserviceoperator.

MD5

Messagedigestalgorithmversion5.Messagedigestalgorithmthatturnsanarbitrarylengthmessageintoaunique,128-bitmessagedigestwhichcannotbepre-specified.

MFN

Multi-frequencynetwork

MHz

Megahertz

MIB

Managementinformationbase.Setofmanagedobjectswithinanopensystemwhichhasnophysicalorlogicalstoragefortheinformation,andwhichcanbetransferredoraffectedthroughtheuseofOSImanagementprotocols.

MLD

MulticastListenerDiscovery.isusedbyanIPv6routertodiscoverthepresenceofmulticastlistenersondirectlyattachedlinks,andtodiscoverwhichmulticastaddressesareofinteresttothoseneighbouringnodes.

MNC

Mobilenetworkcode.Adigitoracombinationofdigitsuniquelyidentifyingthepubliclandmobilenetwork(PLMN).

MNO

MobileNetworkOperator

MPE

Multi-protocolencapsulationMPE-FECAdditionalErrorCorrectionontheIPpacketlevel,implementedbyusingReed-Solomoncoding.Itenablesreceptioninhigherspeedsandlowsignalstrengthareasaswellasenhanceslargefiledownloadreliability.

MPE-FEC

AdditionalErrorCorrectionontheIPpacketlevel,implementedbyusingReed-

Solomoncoding.Itenablesreceptioninhigherspeedsandlowsignalstrength

areasaswellasenhanceslargefiledownloadreliability.

MPEG-2

MovingvideoimagecompressionanddecompressionmethoddevelopedbytheISOandIEC,inwhich,insteadofrecordingsingleimages,thedifferencesinsuccessiveimagesarerecorded.Themethodisdividedasfollows:MPEG1video,MPEG2digitaltelevision,andMPEG4videophonecall.TheacronymMPEGisbasedonthenameoftheexpertgroup,theMovingPictureExpertsGroup,whichdevelopedthemethod.

MSISDN

MobilesubscriberinternationalISDNnumber.ISDNnumberwhichuniquelydefinesthemobilesubscriberatinternationallevel.MSISDNconsistsofthreeparts:thecountrycode,thenationaldestinationcode,andthesubscribernumber.

Multicast

Unidirectionaltransmissionofdatabetweenasinglesenderandmultiple,specificreceivers.

Multiplexing

Processofcombininganumberofsignalssothattheycanshareacommontransmissionfacility

NAT

Networkaddresstranslator

NCC

NokiaChargingCenter

Networkarea

Groupofcellscarryingexactlythesameservices.Apartfromfrequencyandde-phasing,datasentinthecellsofanetworkareaisidentical.

Networkcell

NetworkcellcorrespondstothelargestgeographicalareacoveredbyadatastreamoriginatingfromasingleIPE.

NetworkOperator

ArolewithintheNokiaMobileBroadcastSolution.AnorganisationthatmanagestheDVB-Hnetwork,includingtheBroadcastEncapsulator,andprovidesthebandwidthrequiredformobilebroadcasting.

NIC

Networkinterfacecard

NIT

Networkinformationtable

NTP

NetworkTimeProtocol.Protocolforsynchronisingclocksonhostsandroutersconnectedtoanetwork,withreferencetoclockslocatedontheInternet.

NVoD

Nearvideo-on-demand.Multimediaservicewithwhichitispossibletochooseavideoprogramtobeseenonatelevisionreceiverequippedwithaset-topboxoranappropriatemultimediaterminalfromasetofprogramsinthedistributionnetworkbeginninginsettimeintervals.

OCSP

OnlineCertificateStatusProtocol.Protocolthatprovidesapplicationswithameanstoquerythevaliditystatusofanidentifiedcertificatein(almost)realtime.

OMA

OpenMobileAlliance.Organizationthatactsasamobileindustrystandardsforumaimingatinteroperablemobileservicesacrossgeographicareas,networkoperators,andmobileterminalsandatanopenstandards-basedframeworkthatpermitsservicesinamulti-vendorenvironment.

OSC

OnlineServiceController.Nokiaproductthatoffersacombinationofofflineandonlinechargingmechanismsonasingleplatform,andcentralcharginglogicmanagementindependentofthechargingmethod

Overhead

Informationwhichisaddedtotheinformationpayloadtocreateasynchronoustransfermodeunit,andwhichincludesblockframinginformationandinformationformaintenance,performancemonitoringandotheroperationalfunctions

QoS

QualityofService.Collectiveeffectofserviceperformance,whichdeterminesthedegreeofsatisfactionofaserviceuser.

PAT

Programassociationtable

Payload

Informationwhichistobetransferredtothereceivingendbythetransmissionsystemorapartofit

Pay-per-view

Asystemoftelevisionbroadcastingbywhichsubscriberspayforeachprogramtheywishtoreceive.

Planningperiod

PlanningperiodrepresentsagroupofconsecutivedaysforwhichthebasictopologyandbandwidthpricingofthenetworkremainunchangedwithintheBroadcastServiceManager.

PID

Packetidentifier

PIM

Protocolindependentmulticast

PMT

Programmaptable

PSI/SI

Programspecificinformation/serviceinformation

Pay-per-view

Asystemoftelevisionbroadcastingbywhichsubscriberspayforeachprogramtheywishtoreceive.

Planningperiod

PlanningperiodrepresentsagroupofconsecutivedaysforwhichthebasictopologyandbandwidthpricingofthenetworkremainunchangedwithintheBroadcastService

Manager.

PLMN

Publiclandmobilenetwork.Mobilenetworkforthespecificpurposeofprovidinglandmobilecommunicationservicestothepublic.

Publickey

Cryptographickeythatisusedwithanasymmetriccryptographicalgorithmandthatcanbemadepubliclyavailable.Apublickeyisprovidedbyadesignatedauthority.Itisusedincombinationwithaprivatekeytoencryptmessagesanddigitalsignatures.

QAM

Quadratureamplitudemodulation

OCSP

OnlineCertificateStatusProtocol

OMA

OpenMobileAlliance.Organisationthatactsasamobileindustrystandardsforumaimingatinteroperablemobileservicesacrossgeographicareas,networkoperators,andmobileterminals,andatanopenstandards-basedframeworkthatpermitsservicesinamulti-vendorenvironment.

OMABCAST

AworkinggroupinOMAdevelopingafullystandardisedsystemallowingoperatorstocontrolaccessandusageofbroadcastcontentonmobiledevices.

QoS

QualityofService.Collectiveeffectofserviceperformance,whichdeterminesthedegreeofsatisfactionofaserviceuser.

QPSK

Quadraturephaseshiftkeying

RAID

Redundantarrayofindependentdisks.Setofphysicaldiskdrivestowhichdataiswritteninsuchawaythatifoneormoreofthedrivesisbrokendown,nodatawillbelost.

RAM

Randomaccessmemory

REL

RightsExpressionLanguage.Specifiesthesyntaxandsemanticsofrights

governingtheusageofDRMcontentbasedontheOpenDigitalRights

Language(ODRL)(seeDRMSpecification[9]).

RFC

RequestforComments.FormaldocumentwrittenbymembersoftheInternetEngineeringTaskForce(IETF)thatisreviewedbyinterestedpartiesontheInternet.

RightsIssuer

AnentitythatissuesrightsobjectstoOMADRMconformantdevices.

Rightsobject

Acollectionofpermissionsandotherattributes,whicharelinkedtoprotectedcontent.

RMI

Remotemethodinvocation.Applicationprogramminginterface(API)thatenablesaJavaprogramrunningononecomputertoaccesstheobjectsandmethodsofanotherJavaprogramrunningonadifferentcomputer

RO

Rightsobject

ROAP

RightsObjectAcquisitionProtocol.EnablesdevicestorequestandacquireRightsObjectsfromaRightsIssuer(seeOMA-TS-DRM-DRM-V2_0-20060303-A).

Roundtriptime

Timedelaybetweenthesendingandacknowledgementofapacket.

RPM

RedHatpacketmanager

RTP,RTCP

Realtimeprotocol,realtimecontrolprotocol.ProtocolscarryingmulticaststreamedcontentoverIP

RTT

Roundtriptime

Rx

Receiver.Deviceconnectedtoanaerialorothersourceofradiosignalsinordertomakeavailableinsomedesiredformtherequiredinformationcontentofthesignals

SCS

SimulCryptSynchroniser.DefinedinETSITS103197.

SCSI

Smallcomputersysteminterface

SDT

Servicedescriptiontable

SDP

SessionDescriptionProtocol.Protocolwhichconveysinformationaboutmediastreamsinmultimediasessionstoallowtherecipientsofasessiondescriptiontoparticipateinthesession.

SEK

Serviceencryptionkey

Service

Ingeneral,theMBStermservicecorrespondstoaTVchannel,butcanalsorefertofilecastorplainaudiocorrespondingtoaradiochannel.Servicesmapthecontentstreamstotheavailablepartitionsbymeansofthetopic.Servicesalsodefinethenetworkareaswheretheassociatedstreamsarebroadcast,andcertaindefaultvaluesfortheservicesessions,suchaswhetherthestreamcanbeencryptedornot.

ServiceareaServicearearepresentsthenetworkareasinwhichthecontentofaservice'ssessionsarestreamed.

Serviceoperator

AuserrolewithregardstotheBroadcastServiceManagerandBroadcastAccountManager:Anentitymanagingthepricingandsellingofmobilebroadcastservicestoconsumers.

Session,servicesession

Servicesessionsareinstancesofbroadcastcontentatagiventimewithaparticularstreamingprofileandencryptionsettings.SHA1Securehashalgorithm1.Hashalgorithmthattakesasinputamessageoflessthan2^64bitsinlengthandproducesasoutputa160-bitmessagedigest.

SFN

SingleFrequencyNetwork.Anetworkcellwithmorethanonesynchronisedtransmitteroperatingonasinglefrequency.

SHA1

Securehashalgorithm1.Hashalgorithmthattakesasinputamessageoflessthan2^64bitsinlengthandproducesasoutputa160-bitmessagedigest.

SIM

Subscriberidentitymodule.Securitymodulethatisinsertedintoapieceofmobileequipmentforsubscriberidentificationandothersecurityrelatedinformation.

SNMP

SimpleNetworkManagementProtocol.Networkmanagementprotocolwhichprimarilydefinesthefunctionsofnetworkmanagementsoftwareanddescribesthewayinwhichthereportsaredefinedandsent.

SNMPtrap

AlarmgeneratedbynetworkequipmentprovidedwithanSNMPagenttoinformthenetworksupervisionoffaultsoccurredinthem.AnSNMPtrapcontainsanobjectidentifier,informationonthemanagementinformationbase(MIB)objectswhichsetoffthetrap,andthevaluesofthoseMIBobjects.

SOAP

Simpleobjectaccessprotocol–XML/HTTP-basedprotocolthatdefinesclient-serverinteractionacrossanetwork,usedforaccessingservices,objects,andserversinaplatform-independentmanner

SPP

Servicepurchaseandprotection

SQL

Structuredquerylanguage;standardquerylanguage

SRTP

SecureReal-TimeTransportProtocol.ProfileoftheReal-TimeTransportProtocol(RTP)thatcanprovideconfidentiality,messageauthentication,andreplayprotectiontotheRTPtrafficandtothecontroltrafficforRTP.

SSH

SecureShell.Protocoltologintoanothercomputeroveranetwork,toexecutecommandsinaremotemachine,andtomovefilesfromonemachinetoanother.SubchannelAlarmgeneratedbynetworkequipmentprovidedwithanSNMPagenttoinformthenetworksupervisionoffaultsoccurredinthem.AnSNMPtrapcontainsanobjectidentifier,informationonthemanagementinformationbase(MIB)objectswhichsetoffthetrap,andthevaluesofthoseMIBobjects.

Subchannel

AlarmgeneratedbynetworkequipmentprovidedwithanSNMPagentto

informthenetworksupervisionoffaultsoccurredinthem.AnSNMPtrap

containsanobjectidentifier,informationonthemanagementinformationbase

(MIB)objectswhichsetoffthetrap,andthevaluesofthoseMIBobjects.

TCP

TransmissionControlProtocol,TransportControlPtocolthatprovidesthetransportservicelocatedinthetransportlayeroftheOSImodel.

TDT

Timeanddatetable

TDM

Time-divisionmultiplexing.Multiplexingtechniqueinwhichtwoormorelowerbandwidthcommunicationschannelsarecombinedintoahigherbandwidthchannelbyallocatingfrequencytimeslotsinturntoeachofthelowerbandwidthcommunications.

TEK

Trafficencryptionkey

Timeslice

Timeintervaloffixedsize.Timeslicesareusedtoallocatewithequityandforshortperiods(thetimeslice)thetotalbitratetothevariouschannels/subchannels.

TNS

TransitNetworkSelection

TPS

Transmissionparameter

TransactionHandler

ThecorecomponentofBAMthatisresponsibleforthecreationandmaintenanceoftransaction