Installation Guide

AirHarmony‐4200DC(InternalFilters)InstallationGuide
UGD‐D01196 AirspanCommercialandInternalUse 50
B Abbreviations
Term Expansion
3GPP 3rdGenerationPartnershipProject,responsibleforLTE
ABS AlmostBlankSubframes
ACS AdjacentChannelSelectivityisameasurementofareceiver'sabilitytoprocessa
desiredsignalwhilerejectingastrongsignalinanadjacentfrequencychannel.ACS
isdefinedastheratioofthereceiverfilterattenuationontheassignedchannel
frequencytothereceiverfilterattenuationontheadjacentchannel
frequency.
AWGN AdditiveWhiteGaussianNoiseisachannelmodelinwhichtheonlyimpairmentto
communicationisalinearadditionofwhitenoisewithaconstantspectraldensity
andaGaussiandistributionofamplitude.
BER BitErrorRate
CN CoreNetwork
CP CyclicPrefix
CTC ConvolutionTurboCodeisahigh‐performanceforwarderrorcorrection(FEC)
code
dB Decibel.Alogarithmicunitusedtodescribearatio(suchaspowerratioinradio
telecommunications)
dBm Anabbreviationforthepowerratioindecibels(dB)ofthemeasuredpower
referencedtoonemilliwatt(mW).Itisusedasaconvenientmeasureofabsolute
powerbecauseofitscapabilitytoexpressbothverylargeandverysmallvaluesin
ashortform.
eNodeB EvolvedNodeB,istheelementinE‐UTRANofLTE.
ESP EncapsulatingSecurityPayloads(ESP)provideconfidentiality,data‐origin
authentication,connectionlessintegrity,ananti‐replayservice(aformofpartial
sequenceintegrity),andlimitedtraffic‐flowconfidentiality
E‐UTRAN EvolvedUMTSTerrestrialRadioAccessNetwork,istheairinterfaceof3GPP'sLong
TermEvolution.
EVM/RCE TheErrorVectorMagnitudeorEVM(sometimesalsocalledReceiveConstellation
ErrororRCE)isameasureusedtoquantifytheperformanceofadigitalradio
transmitterorreceiver.ItismeasuredindBorpercentage(%)–thelowerthe
better.
FDD Frequency‐DivisionDuplexing.Atransceivermodewherethetransmitterand
receiveroperateatdifferentcarrierfrequencies.
GNSS GlobalNavigationSatelliteSystemisatermusedtodescribeasatellitenavigation
systemwithglobalcoverage.TherearecurrentlytwofullyoperationalGNSSs–the
USGPSandtheRussianGLONASS
GTP‐U GPRSTunnelingProtocolforUserdataisarelativelysimpleIPbasedtunneling
protocolwhichpermitsmanytunnelsbetweeneachsetofendpoints
HPBW HalfPowerBandWidthistheangularseparationinanantenna,inwhichthe
magnitudeoftheradiationpatterndecreasesby50%(or‐3dB)fromthepeakof
themainbeam
ICS In‐channelselectivityisameasureofthereceiver’sabilitytoreceiveawanted
signalatitsassignedResourceBlocklocationsinthe presenceofaninterfering
signal
IPSec InternetProtocolSecurityisaprotocolsuiteforsecuringInternetProtocol(IP)
communicationsbyauthenticatingandencryptingeachIPpacketofa
communicationsession