GJB2213-1994直流小电流标准源检定规程.pdf

'免费标准网(www.freebz.net)Designation:E2213–02StandardSpecificationforTelecommunicationsandInformationExchangeBetweenRoadsideandVehicleSystems—5GHzBandDedicatedShortRangeCommunications(DSRC)MediumAccess1Control(MAC)andPhysicalLayer(PHY)SpecificationsThisstandardisissuedunderthe®xeddesignationE2213;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.ScopeDSRCandIEEE802.11compliantdevicetooperateina1.1Thisspeci®cation2describesamediumaccesscontrolhigh-speedmobileenvironment.(MAC)andphysicallayer(PHY)speci®cationforwireless1.3.2ReferstoIEEE802.11MACprocedures.connectivityusingdedicatedshort-rangecommunications1.3.3De®nesthe5.9-GHzDSRCsignalingtechniqueand(DSRC)services.ThisstandardisbasedonandreferstoIEEEinterfacefunctionsthatarecontrolledbytheIEEE802.11Standards802.11,WirelessLANMediumAccessControlandMAC.PhysicalLayerSpeci®cations,and802.11a,WirelessLAN1.3.4PermitstheoperationofaDSRCorIEEE802.11MediumAccessControlandPhysicalLayerSpeci®cationsconformantdevicewithinawirelesslocalareanetwork(LAN)High-SpeedPhysicalLayerinthe5GHzBand,withpermis-thatmaycoexistwithmultipleoverlappingDSRCcommuni-sionfromtheIEEEsociety.Thisspeci®cationismeanttobeancationzonesorIEEE802.11wirelessLANs.extensionofIEEE802.11technologyintothehigh-speed1.3.5Describestherequirementsandprocedurestoprovidevehicleenvironment.Aspresentedhere,thisspeci®cationprivacyofuserinformationbeingtransferredoverthewirelesscontainsjustenoughinformationtoexplainthedifferencemedium(WM)andauthenticationoftheDSRCorIEEEbetweenIEEE802.11andIEEE802.11aoperatingparameters802.11conformantdevices.requiredtoimplementamostlyhigh-speeddatatransfer2.ReferencedDocumentsserviceinthe5.9-GHzIntelligentTransportationSystemsRadioService(ITS-RS)BandortheUnlicensedNational2.1IEEEStandards:InformationInfrastructure(UNII)Band,asappropriate.802.11WirelessLANMediumAccessControl(MAC)andPhysicalLayer(PHY)Speci®cations31.2PurposeÐThepurposeofthisspeci®cationistoprovidewirelesscommunicationsovershortdistancesbetweeninfor-802.11aWirelessLANMediumAccessControl(MAC)andmationsourcesandtransactionsstationsontheroadsideandPhysicalLayer(PHY)Speci®cationsÐAmendment1:High-SpeedPhysicalLayerinthe5GHzBand3mobileradiounits,betweenmobileunits,andbetweenportableunitsandmobileunits.Thecommunicationsgenerallyoccur2.2FederalDocument:CFR47Title47onTelecommunication4overline-of-sightdistancesoflessthan1000mbetweenroadsideunitsandmostlyhighspeed,butoccasionallystopped3.Terminologyandslowmoving,vehiclesorbetweenhigh-speedvehicles.3.1De®nitionsÐSeeIEEE802.11,Clause3,inadditiontoThisspeci®cationalsooffersregulatorybodiesameansofthefollowinginformation:standardizingaccesstothe5.9-GHzfrequencybandforthe3.1.1onboardunit(OBU)Ðanonboardunit(OBU)isapurposeofinteroperablecommunicationstoandbetweenDSRCtransceiverthatisnormallymountedinoronavehicle,vehiclesatline-of-sightdistancesontheroadway.butwhichinsomeinstancesmaybeaportableunit.AnOBU1.3Speci®cally,thisspeci®cationaccomplishesthefollow-canbeoperationalwhileavehicleorpersoniseithermobileoring:stationary.TheOBUsreceiveandcontendfortimetotransmit1.3.1DescribesthefunctionsandservicesrequiredbyaononeormoreRFchannels.Exceptwherespeci®callyexcluded,OBUoperationispermittedwherevervehicleopera-1Thisspeci®cationisunderthejurisdictionofASTMCommitteeE17ontionorhumanpassageispermitted.TheOBUsmountedinVehicle±PavementSystemsandisthedirectresponsibilityofSubcommitteeE17.51onVehicleRoadsideCommunication.3CurrenteditionapprovedJune10,2002.PublishedOctober2002.AvailablefromAvailablefromInstituteofElectricalandElectronicsEngineers,2Thisspeci®cationisbasedonIEEEStd802.11,1999EditionandIEEEStdInc.(IEEE),445HoesLn.,P.O.Box1331,Piscataway,NJ08854-13314AvailablefromAvailablefromU.S.GovernmentPrintingOfficeSuperintendent802.11a,1999Edition.Thisspeci®cationexplainstheDSRCparametersasanextensionoftheIEEEStd802.11andIEEEStd802.11adocuments.ofDocuments,732N.CapitolSt.,NW,MailStop:SDE,Washington,DC20401.Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.1免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02vehiclesaregenerallyunlicensedandcommunicatewithroad-MonitoringService(5.850to5.925GHz),NumberTBD.sideunits(RSUs)andotherOBUs.PortableOBUsarelicensed4.1.1GeneralDescriptionoftheDSRCandIEEE802.11andrestrictedtocommunicationwithvehicle-mountedOBUsArchitectureÐSeeIEEE802.11,Clause5.1.whenoperatingintheITS-RSBand.OBUoperationsare4.1.1.1HowWirelessLANSystemsareDifferentfromWiredneitherlicensednorrestrictedwhenoperatingintheUNIILANSystemsÐSeeIEEE802.11,Clause5.1.1andsub-clauses:Bands.4.1.1.2HowDSRCSystemsareDifferentfromIEEE802.113.1.2roadsideunit(RSU)Ðaroadsideunit(RSU)isaSystems:DSRCtransceiverthatismountedalongaroad,othervehicle,(1)Thisspeci®cationde®nesamediumaccesscontrolandorpedestrianpassageway.AnRSUmayalsobemountedonaairinterfacethatenablesaccurateandvalidmessagedeliveryvehicleorishandcarried,butitmayonlyoperatewhenthewithcommunicationunitsthatareprimarilymountedinvehicleorhand-carriedunitisstationary.Furthermore,anRSUhigh-speedmovingvehicles.Thesecommunicationsmayoc-operatingunderCFR47Part90rulesisrestrictedtothecurwithotherunitsthatare:(1)®xedalongtheroadsideorlocationwhereitislicensedtooperate.However,portableorabovetheroadway;(2)mountedinotherhigh-speedmovinghand-heldRSUsarepermittedtooperateontheControlvehicles;(3)mountedinstationaryvehicles;or(4)portableorChannelandServicechannelswheretheydonotinterferewithhand-held.Communicationsmayalsooccurbetweenstation-asite-licensedoperation.ARSUbroadcastsdatatoOBUsoraryorlow-speedmobileunitsand®xedorportableunitsontheexchangesdatawithOBUsinitscommunicationszone.Anroadsideoroff-the-road,inprivateorpublicareas.However,RSUalsoprovideschannelassignmentsandoperatinginstruc-mostIEEE802.11systemsimplementcommunicationsbe-tionstoOBUsinitscommunicationszone,whenrequired.tweenstationaryunitsormobileunitsmovingatlowspeeds.3.1.3private(application)ÐimplementationofaDSRCHigh-speedsareconsideredthoseachievedbythegeneralservicetotransferdatatoandfromindividualorbusiness-publicandemergencyvehiclesonNorthAmericanhighways.owneddevicestoenablebusinessoruserdatatransactionsorLow-speedsareconsideredaswalkingtorunningpaces.toimprovetheefficiencyofbusinessdatatransactions.(2)Asexplainedinthede®nitions,in-vehiclecommunica-3.1.4publicsafety(application)Ðimplementationofationsunitsarecalledon-boardunits(OBUs).CommunicationDSRCservicebyagovernmentorgovernmentsponsoredunits®xedalongtheroadside,overtheroadongantriesoractivityasde®nedinCFR47USCsection309(j).poles,orofftheroadinprivateorpublicareasarecalled3.2Acronyms:roadsideunits(RSUs).TheDSRCRSUsmayfunctionas3.2.1BPSKÐbinaryphaseshiftkeyingstationsorasaccesspoints(APs)andDSRCOBUsonlyhave3.2.2C-MPDUÐcodedMPDUfunctionsconsistentwiththoseofstations(STAs).Thecom-3.2.3DSRCÐdedicatedshort-rangecommunicationsmonfunctionbetweenallRSUsisthatthesestationaryunits3.2.4FFTÐFastFourierTransformcontrolaccesstotheRFmediumforOBUsintheircommu-3.2.5GIÐguardintervalnicationzoneorrelinquishcontroltobroadcastdataonly.3.2.6IFFTÐinverseFastFourierTransform(3)Inordertoaccommodatethemoredynamicenviron-3.2.7MLMEÐMACsublayermanagemententitymentwithessentiallythesameradiotechnology,DSRCusesa3.2.8OBUÐonboardunitdifferentchannelaccessstrategythanIEEE802.11unitsand3.2.9OFDMÐorthogonalfrequencydivisionmultiplexingemploysadditionaloperatingrules.ThisadditionalSystem3.2.10PERÐpacketerrorrateManagementstrategyisdescribedprimarilyintheASTM3.2.11PLMEÐPHYmanagemententityLayerManagementStandard(underdevelopment)Number3.2.12QAMÐquadratureamplitudemodulationTBD.3.2.13QPSKÐquadraturephaseshiftkeying(4)Theessenceofthisstrategyistheidenti®cationofa3.2.14RSUÐroadsideunitcontrolchannelandservicechannels,asystemofpriority3.2.15U-NIIÐunlicensednationalinformationinfrastruc-access,andmandatoryservicechanneldatatransfertimelimitsturewhileinmotion.4.GeneralDescription(5)RFpower,sensitivity,andantennapatternareintendedtobereferencedtoastandardlocationonthevehicle.This4.1Thisspeci®cationde®nestheOpenSystemsIntercon-standardlocationisintendedtobethefrontbumperofanection(OSI)Layer1,physicallayer,andLayer2,mediumpassengervehicleortheequivalentonacommercialvehicle.accesscontrollayerforDSRCequipmentoperatinginatwo-wayorone-way,half-duplex,activemode.Thephysical4.1.2ComponentsoftheIEEE802.11ArchitectureÐSeelayerisaspecialcaseimplementationofIEEE802.11aIEEE802.11,Clause5.2.technologyandthemediumaccesscontrollayeristhesameas4.1.3LogicalServiceInterfacesÐSeeIEEE802.11,ClausetheIEEE802.11MAC.Allreferencesinthisspeci®cationto5.3.IEEE802.11MACconceptsareincorporatedintheDSRC4.1.4OverviewoftheServicesÐSeeIEEE802.11,Clauseimplementation.Thisspeci®cationestablishesacommon5.4.frameworkforthephysicallayerinthe5.850to5.925-GHz4.1.5RelationshipsBetweenServicesÐSeeIEEE802.11,ITS-RSband.ThisbandisallocatedforDSRCapplicationsbyClause5.5.theFCCinTitle47,CodeofFederalRegulations(CFR),Part4.1.6DifferenceBetweenESSandIBSSLANsÐSeeIEEE90,SubpartMandbyIndustryCanadaintheSpectrum802.11,Clause5.6.Management,RadioStandardSpeci®cation,Locationand4.1.7MessageInformationContentsthatSupportthe2免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02ServicesÐSeeIEEE802.11,Clause5.7.RemovethereferencestoaMPDUDurationFactorfrom10.4.3.1.10.4.6PLME-TXTIME.request4.1.8ReferenceModelÐSeeIEEE802.11,Clause5.8.10.4.6.1Function4.1.9ImplementationofDSRCUsingIEEE802.11Archi-ThisprimitiveisarequestforthePHYtocalculatethetimethatwillberequiredtotransmitaPPDUcontainingaspecifiedlengthMPDU,tectureComponents:andusingaspecifiedformat,datarate,andsignalingontothewire-4.1.9.1TheDSRCcommunicationsareconductedeitherlessmedium.10.4.6.2SemanticsoftheserviceprimitivebetweenRSUsandOBUs,asshowninFigs.1and2,oronlyThisprimitiveprovidesthefollowingparameters:betweenOBUs,asshowninFig.3.PLME-TXTIME.request(TXVECTOR)TheTXVECTORrepresentsalistofparametersthattheMACsub-4.1.9.2TheDSRCcommunicationsmayberoutedfromorlayerprovidestothelocalPHYentityinordertotransmitaMPDU,intowideareanetworksbyportalsfromRSUs,asshowninasfurtherdescribedin12.3.4.4and17.4(whichdefinesthelocalFig.4.PHYentity).10.4.6.3Whengenerated4.1.9.3TheDSRCcommunicationsmayberoutedbetweenThisprimitiveisissuedbytheMACsublayertothePHYentitywhenevertheMACsublayerneedstodeterminethetimerequiredtowideareanetworksandin-vehiclenetworksbyportalsfromtransmitaparticularMPDU.OBUsandRSUs,asshowninFigs.5-7.10.4.6.4EffectofreceiptTheeffectofreceiptofthisprimitivebythePHYentityshallbetogenerateaPHY-TXTIME.confirmprimitivethatconveystherequired5.IEEE802.11aReferencedParagraphstransmissiontime.10.4.7PLME-TXTIME.confirm5.1MACServiceDe®nitionÐSeeIEEE802.11,Clause6.10.4.7.1Function5.2FrameFormatsÐSeeIEEE802.11,Clause7.ThisprimitiveprovidesthetimethatwillberequiredtotransmitthePPDUdescribedinthecorrespondingPLME-TXTIME.request.5.3AuthenticationandPrivacyÐSeeIEEE802.11,Clause10.4.7.2Semanticsoftheserviceprimitive8.Thisprimitiveprovidesthefollowingparameters:PLME-TXTIME.confirm(TXTIME)5.4MACSublayerFunctionalDescriptionÐSeeIEEETheTXTIMErepresentsthetimeinmicrosecondsrequiredtotrans-802.11,Clause9.mitthePPDUdescribedinthecorrespondingPLME-TXTIME.request.Ifthecalculatedtimeincludesafractionalmicro-5.5MultirateSupportÐForthe5-GHzPHY,thetimere-second,theTXTIMEvalueisroundedtothenexthigherinteger.quiredtotransmitaframeforuseintheDuration/ID®eldis10.4.7.3WhengeneratedThisprimitiveisissuedbythelocalPHYentityinresponsetoadeterminedusingthePLME-TXTIME.requestprimitiveandPLME-TXTIME.request.thePLME-TXTIME.con®rmprimitive.Thecalculation10.4.7.4EffectofreceiptThereceiptofthisprimitiveprovidestheMACsublayerwiththemethodofTXTIMEdurationisde®nedinIEEE802.11a,PPDUtransmissiontime.Clause17.4.3.6.1.2MACSublayerManagementEntityÐSeeIEEE802.11,Clause11.6.LayerManagement6.1SeeIEEE802.11,Clause10.7.IEEE802.11aSection17UpdatesforDSRC6.1.1PLMESAPInterface:Thefollowingparagraphsde®nethechangesinClause17ofFIG.1RSUCommunicatingWithanOBU3免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02FIG.2BasicServiceSetsWithRSUsandOBUsFIG.3BasicServiceSetsWithOBUsOnlytheIEEEStandard802.11aasmodi®edtodescribeDSRCratesof3,6,and12Mbit/sismandatory.Thesystemuses52deviceimplementations.IEEEStandard802.11,theIEEEsubcarriers,modulatedusingbinaryorquadraturephaseshift802.11aSupplement,andtheadditionsormodi®cationsthatkeying(BPSK/QPSK),16-quadratureamplitudemodulationfollowfullydescribethestandardasitappliestoaDSRC(QAM),or64-QAM.Forwarderrorcorrectioncoding(convo-device.lutioncoding)isusedwithacodingrateof1/2,2/3,or3/4.7.2TXVECTORParametersÐTheparametersinTable15NOTE1ÐClause17asitappearsasfollowsonlyincludesthosearede®nedaspartoftheTXVECTORparameterlistintheportionsofthedocumentthathavechangedtoincorporateDSRC.PHY-TXSTART.requestserviceprimitive.7.1DSRCPHYSpeci®cationforthe5-GHzBand:7.2.1TXVECTORDATARATEÐTheDATARATEparam-7.1.1IntroductionÐThisclausespeci®esthePHYentityforeterdescribesthebitrateatwhichthePLCPshalltransmittheanorthogonalfrequencydivisionmultiplexing(OFDM)sys-5PSDU.Itsvaluecanbeanyoftheratesde®nedinTable1.temandadditionsthathavetobemadetothebasestandardinDataratesof3,6,and12Mbpsshallbesupported;otherratesordertoaccommodatetheOFDMPHY.ThisDSRCradiomayalsobesupported.frequencysystemisinitiallyintendedforthe5.850±5.925-GHz-licensedITSRadioServicesBand,asregulatedinthe5ThistableisreprintedwithpermissionfromIEEEStandard802.11aªIEEEUnitedStatesbytheCodeofFederalRegulations,Title47,PartStandardforInformationTechnologyÐTelecommunicationsandInformationEx-90.TheOFDMsystemprovidesDSRCwithdatapayloadchangeBetweenSystemsÐLocalandMetrolpoitanAreaNetworksÐSpeci®ccommunicationcapabilitiesof3,4.5,6,9,12,18,24,and27RequirementsÐPart11:WirelessLANMediumAccessControl(MAC)andMbit/s.Inadditiondatapayloadcapabilitiesof6,9,12,18,24,PhysicalLayer(PHY)Speci®cationsÐAmendment1:High-SpeedPhysicalLayerinthe5GHzBand,ºCopyright1999,byIEEE.TheIEEEdisclaimsany36,48,and54Mbit/scanbesupportedinoptionalchannelresponsibilityorliabilityresultingfromtheplacementanduseinthedescribedcombinations.Thesupportoftransmittingandreceivingatdatamanner.4免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02FIG.4ConnectingOBUstoWide-AreaNetworksFIG.5ConnectinganOBUtoanIn-vehicleNetworkFIG.6BSSConnectsOn-boardComputerThroughtheWANtotheITSApplication7.3RXVECTORParametersÐTheparameterslistedinbythePHYsublayeroftheenergyobservedattheantennaTable25arede®nedaspartoftheRXVECTORparameterlistusedtoreceivethecurrentPPDU.TheRSSIshallbemeasuredinthePHY-RXSTART.indicateserviceprimitive.duringthereceptionofthePLCPpreamble.TheRSSIis7.3.1RXVECTORRSSIÐTheallowedvaluesforthere-intendedtobeusedinarelativemanner,anditshallbeaceivesignalstrengthindicator(RSSI)parameterareinthemonotonicallyincreasingfunctionofthereceivedpower.rangefrom0toRSSImaximum.ThisparameterisameasureSubsequenttoaperiodofnolessthan2msafteranalertsignal,5免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02FIG.7ConnectingaRemoteITSApplicationtoOn-boardSystemsAATABLE1TXVECTORParametersTABLE2RXVECTORParametersParameterAssociatePrimitiveValueParameterAssociatePrimitiveValueLENGTHPHY-TXSTART.request1-4095LENGTHPHY-1-4095(TXVECTOR)RXSTART.indicateDATATRATEPHY-TXSTART.request3,4.5,6,9,12,18,24,and27RSSIPHY-0-RSSImaximum(TXVECTOR)(Supportof3,6,and12dataRXSTART.indicateratesismandatory.)(RXVECTOR)SERVICEPHY-TXSTART.requestscramblerinitialization;7nullbits+DATARATEPHY-3,4.5,6,9,12,18,(TXVECTOR)9reservednullbitsRXSTART.request24,and27TXPWR_LEVELPHY-TXSTART.request1-64(RXVECTOR)(TXVECTOR)SERVICEPHY-nullARXSTART.requestFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.(RXVECTOR)AFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.theminimumRSSIresolutionshouldrepresentnomorethan0.2-dBchangeofreceivedsignalandmustbeaccurateto617.4.2DiscreteTimeImplementationConsiderationsÐThedBacrosstheentireoperatingtemperaturerangewithin-60tofollowingdescriptionsofthediscretetimeimplementationare-30dBmofthereceivingsignalrange.informational.Inatypicalimplementation,thewindowing7.3.2DATARATEÐDATARATEshallrepresentthedatafunctionwillberepresentedindiscretetime.Asanexample,rateatwhichthecurrentPPDUwasreceived.TheallowedwhenawindowingfunctionwithparametersT=8.0µsandavaluesoftheDATARATEare3,4.5,6,9,12,18,24,or27TTR=200nsisapplied,andthesignalissampledat10Mbps.Msamples/s.7.4RATE-dependentParametersÐThemodulationparam-7.5PLCPPreamble(SYNC):etersdependentonthedatarateusedshallbesetaccordingto7.5.1ThePLCPpreamble®eldisusedforsynchronization.Table35.Itconsistsof10shortsymbolsandtwolongsymbolsthatare7.4.1Timing-RelatedParametersÐTable45isthelistofshowninFig.8anddescribedasfollows.Fig.8showsthetimingparametersassociatedwiththeOFDMPLCP.OFDMtrainingstructure(PLCPpreamble),wheret1tot106免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02ATABLE3Rate-dependentParametersCodedBitsCodedBitsDataBitsDataRate,CodingRate,ModulationperSubcarrier,perOFDMSymbol,perOFDMSymbol,Mbits/sRNBPSCNCBPSNDBPS3BPSK1/2148244.5BPSK3/4148366QPSK1/2296489QPSK3/4296721216-QAM1/24192961816-QAM3/441921442464-QAM2/362881922764-QAM3/46288216AFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.AN/2TABLE4Timing-relatedParametersSTrLONG~t!5wTLONG~t!(Lkexp~j2pkDF~t±TG12!!ParameterValuek5NST/2NSD:numberofdatasubcarriers48N:numberofpilotsubcarriers4where:SPNST:numberofsubcarriers,total52(NSD+NSP)TG12=3.2µs.DF:subcarrierfrequencyspacing156.25kHz(=10MHz/64)TwoperiodsofthelongsequencearetransmittedforTFFT:IFFT/FFTperiod6.4µs(1/DF)TPREAMBLE:PLCPpreambleduration32µs(TSHORT+TLONG)improvedchannelestimationaccuracy,yieldingTLONG=3.2+TSIGNAL:durationoftheSIGNALBPSK-OFDM8µs(TGI+TFFT)2*6.4=16µs.AnillustrationofthelongtrainingsequencesymbolgenerationisgiveninAnnexG(G.3.2,TableG.5).TheTGI:GIduration1.6µs(TFFT/4)TGI2:trainingsymbolGIduration3.2µs(TFFT/2)sectionsofshortrepetitionsandlongrepetitionsshallbeTSYM:symbolinterval8µs(TGI+TFFT)concatenatedtoformthefollowingpreamble:TSHORT:shorttrainingsequenceduration16µs(103TFFT/4)TLONG:longtrainingsequenceduration16µs(TGI2+23TFFT)rPREAMBLE~t!5rSHORT~t!1rLONG~t±TSHORT!AFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.7.6SignalField(SIGNAL)ÐTheOFDMtrainingsymbolsshallbefollowedbytheSIGNAL®eld,whichcontainstheRATEandtheLENGTH®eldsoftheTXVECTOR.TheRATEdenoteshorttrainingsymbolsandT1andT2denotelong®eldconveysinformationaboutthetypeofmodulationandthetrainingsymbols.ThePLCPpreambleisfollowedbythecodingrateasusedintherestofthepacket.TheencodingofSIGNAL®eldandDATA.Thetotaltraininglengthis32µs.theSIGNALsingleOFDMsymbolshallbeperformedwithThedashedboundariesinFig.8denoterepetitionsduetotheBPSKmodulationofthesubcarriersandusingconvolutionalperiodicityoftheinverseFouriertransform.codingatR=1/2.Theencodingprocedure,whichincludes7.5.2AshortOFDMtrainingsymbolconsistsof12subcar-convolutionalencoding,interleaving,modulationmappingriers,whicharemodulatedbytheelementsofthesequenceS,processes,pilotinsertion,andOFDMmodulation,isinaccor-givenasfollows:dancewithIEEE802.11a,sections17.3.5.5,17.3.5.6,andS–26,26==(13/6)3{0,0,1+j,0,0,0,–1–j,0,0,0,1+j,0,0,0,17.3.5.8,asusedfortransmissionofdataata3-Mbit/srate.The–1–j,0,0,0,–1–j,0,0,0,1+j,0,0,0,0,0,0,0,–1–j,0,0,0,–1–j,contentsoftheSIGNAL®eldarenotscrambled.0,0,0,1+j,0,0,0,1+j,0,0,0,1+j,0,0,0,1+j,0,0}7.6.1TheSIGNAL®eldshallbecomposedof24bits,asThemultiplicationbyafactorof=(13/6)isinordertoillustratedinFig.9.Thefourbits,0to3,shallencodethenormalizetheaveragepoweroftheresultingOFDMsymbol,RATE.Bit4shallbereservedforfutureuse.Bits5-16shallwhichutilizes12outof52subcarriers.encodetheLENGTH®eldoftheTXVECTOR,withtheleast7.5.2.1Thesignalshallbegeneratedaccordingtothesigni®cantbit(LSB)beingtransmitted®rst.Theprocessoffollowingequation:generatingtheSIGNALOFDMsymbolisillustratedinAnnexNST/2G(G.4).rSHORT~t!5wTSHORT~t!(Skexp~j2pkDFt!k5NST/27.6.1.1DataRate(RATE)ÐThebitsR1-R4shallbeset,dependentonRATE,accordingtothevaluesinTable55.ThefactthatonlyspectrallinesofS±26:26withindicesthatareamultipleof4havenonzeroamplituderesultsina7.7PLCPDataModulationandModulationRateperiodicityofTFFT/4=1.6µs.TheintervalTSHORTisequalChangeÐThePLCPpreambleshallbetransmittedusingantoten1.6µsperiods(thatis,16µs).GenerationoftheshortOFDMmodulated®xedwaveform.TheSIGNAL®eld,BPSK-trainingsequenceisillustratedinAnnexG(G.3.1,TableG.2).OFDMmodulatedat3Mbit/s,shallindicatethemodulation7.5.2.2AlongOFDMtrainingsymbolconsistsof53andcodingratethatshallbeusedtotransmittheMPDU.Thesubcarriers(includingazerovalueatdc),whicharemodulatedtransmitter(receiver)shallinitiatethemodulation(demodula-bytheelementsofthesequenceL,givenasfollows:tion)constellationandthecodingrateaccordingtotheRATEL–={1,1,–1,–1,1,1,–1,1,–1,1,1,1,1,1,1,–1,–1,1,1,indicatedintheSIGNAL®eld.TheMPDUtransmissionrate26,26–1,1,–1,1,1,1,1,0,1,–1,–1,1,1,–1,1,–1,1,–1,–1,–1,–1,shallbesetbytheDATARATEparameterintheTXVECTOR,–1,1,1,–1,–1,1,–1,1,–1,1,1,1,1}issuedwiththePHY-TXSTART.requestprimitivedescribedinAlongOFDMtrainingsymbolshallbegeneratedaccording7.2.tothefollowingequation:7.8PMDOperatingSpeci®cations(General)ÐParagraphs7免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02FIG.8OFDMTrainingStructureFIG.9SIGNALFieldBitAssignmentATABLE5ContentsoftheSIGNALField7.8.1OutlineDescriptionÐThegeneralblockdiagramofRate,Mbits/sR1-R4thetransmitterandreceiverfortheOFDMPHYisshownin31101Fig.10.Majorspeci®cationsfortheOFDMPHYarelistedin4.51111Table65.601017.8.2RegulatoryRequirements:901111210017.8.2.1TheDSRCoperationsimplementedinaccordance181011withthisspeci®cationaresubjecttoequipmentcerti®cation240001andoperatingrequirementsestablishedbyregionalandna-270011tionalregulatoryadministrations.ThePMDspeci®cationes-AFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.tablishesminimumtechnicalrequirementsforinteroperability,7.8.1-7.8.6providegeneralspeci®cationsfortheBPSKbaseduponestablishedregulationsatthetimethisspeci®cationOFDM,QPSKOFDM,16-QAMOFDM,and64-QAMOFDMwasissued.Theseregulationsaresubjecttorevision,ormaybePMDsublayers.Thesespeci®cationsapplytoboththereceivesuperseded.RequirementsthataresubjecttolocalgeographicandtransmitfunctionsaswellasthegeneraloperationoftheregulationsareannotatedwithinthePMDspeci®cation.Regu-OFDMPHY.latoryrequirementsthatdonotaffectinteroperabilityarenotFIG.10OFDMPHYFrequencyChannelPlanforNorthAmerica8免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02ATABLE6MajorParametersoftheOFDMPHYthe¯exibilitytode®nechannelizationsetsforallcurrentand3,4.5,6,9,12,18,24,and27Mbit/sfutureregulatorydomains.InformationDataRate(3,6,and12Mbit/sareMandatory)7.8.3.3ChannelizationÐThesetofvalidoperatingchannelModulationBPSKOFDMnumbersbyregulatorydomainisde®nedinTable85.Fig.11QPSKOFDMshowsthechannelizationschemeforthisspeci®cation,which16-QAMOFDM64-QAMOFDMshallbeusedwiththeFCCIntelligentTransportationSystemsErrorcorrectingcodeK=7(64states)convolutionalcodeRadioServices(ITS-RS)allocationandtheIndustryCanadaCodingrate1/2,2/3,3/4ITS-RSallocation.TheU.S.andCanadianITS-RSBandNumberofsubcarriers52OFDMsymbolduration8.0µsaccommodatessevenchannelsinatotalbandwidthof75-MHz.2Guardinterval1.6µs(TGI)Channels175and181aredesignatedforDSRCequipmentOccupiedbandwidth8.3MHzusingDSRCrulesbutoperatingwith20-MHzbandwidthasAFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.describedinIEEEStandard802.11a.7.8.4SlotTimeÐTheslottimefortheOFDMPHYshallbeaddressedinthisspeci®cation.Implementorsarereferredtothe16ms,whichisthesumoftheRX-to-TXturnaroundtime,regulatorysourcesinTable75forfurtherinformation.Opera-MACprocessingdelay,andCCAdetecttime(<8µs).Thetionincountrieswithinde®nedregulatorydomainsmaybepropagationdelayshallberegardedasbeingincludedinthesubjecttoadditionaloralternativenationalregulations.CCAdetecttime.7.8.2.2ThedocumentslistedinTable75specifythecurrent7.8.5TransmitandReceiveAntennaRequirementsÐTheregulatoryrequirementsforvariousgeographicareasatthetransmitandreceiveantennaport(s)impedanceshallbe50Vtimethatthisspeci®cationwasdeveloped.Theyareprovidediftheportisexposed.Thetransmitandreceiveantennasshallforinformationonly,andaresubjecttochangeorrevisionatberighthandcircularlypolarized.TheOFDMPHYshallanytime.operateinthe5-GHzband,asallocatedbyaregulatorybodyin7.8.3OperatingChannelFrequencies:itsoperationalregion.ThecenterfrequencyisindicatedinFig.7.8.3.1OperatingFrequencyRange:11;however,nosubcarrierisallocatedonthecenterfrequency(1)TheOFDMPHYshalloperateinthe5-GHzband,asasdescribedinFig.10.Inamultiple-cellnetworktopology,allocatedbyaregulatorybodyinitsoperationalregion.overlappingoradjacentcells,orboth,usingdifferentchannelsSpectrumallocationinthe5-GHzbandissubjecttoauthoritiescanoperatesimultaneously.responsibleforgeographic-speci®cregulatorydomains(for7.8.6TransmitandReceiveOperatingTemperatureexample,global,regional,andnational).Theparticularchan-RangeÐThreetemperaturerangesforfull-operationcompli-nelizationtobeusedforthisspeci®cationisdependentonsuchancetotheOFDMPHYarespeci®edinClause13ofIEEEStdallocation,aswellastheassociatedregulationsforuseofthe802.11,1999Edition.Type1,de®nedasfrom0to40°C,isallocations.Theseregulationsaresubjecttorevision,ormaybedesignatedforofficeenvironments.Type2,de®nedasfrom-20superseded.IntheUnitedStates,theFCCistheagencyto50°C,andType3,de®nedasfrom±30to70°C,areresponsiblefortheallocationofthe5-GHzU-NIIandITSdesignatedforindustrialenvironments.AfourthtemperatureRadioServiceBands.rangeisaddedforDSRCoperation.Type4,de®nedasfrom(2)Insomeregulatorydomains,severalfrequencybands±40to85°C,isdesignatedforautomotiveenvironments.maybeavailableforOFDMPHY-basedwirelessLANs.These7.9PMDTransmitSpeci®cationsÐParagraphs7.9.1-7.9.7bandsmaybecontiguousornot,anddifferentregulatorylimitsdescribethetransmitspeci®cationsassociatedwiththePMDmaybeapplicable.AcompliantOFDMPHYshallsupportatsublayer.Ingeneral,thesearespeci®edbyprimitivesfromtheleastonefrequencybandinatleastoneregulatorydomain.ThePLCP,andthetransmitPMDentityprovidestheactualmeanssupportofspeci®cregulatorydomains,andbandswithinthebywhichthesignalsrequiredbythePLCPprimitivesaredomains,shallbeindicatedbyPLMEattributesdot11RegDo-imposedontothemedium.mainsSupportedanddot11FrequencyBandsSupported.7.9.1TransmitPowerLevels:7.8.3.2ChannelNumberingÐChannelcenterfrequencies7.9.1.1ThemaximumallowableEffectiveIsotropicRadi-arede®nedateveryintegralmultipleof5MHzabove5GHz.atedPower(EIRP)inaccordancewithFCCregulationsis44.8TherelationshipbetweencenterfrequencyandchannelnumberdBm(30W).However,mostdevicesareexpectedtousemuchisgivenbythefollowingequation:Channelcenterfrequency55000153nch~MHz!TABLE8ValidOperatingChannelnumbersbyRegulatoryADomainandBandwhere:n=0,1,¼200.RegulatoryBand,OperatingChannelChannelCenterchDomainGHzNumbersFrequencies,MHzThisde®nitionprovidesauniquenumberingsystemforallUnitedStatesITS-RS1725860channelswith5-MHzspacingfrom5GHzto6GHz,aswellasandCanada(5.855-5.925)174587017558751765880ATABLE7RegulatoryRequirementList17858901805900GeographicAreaApprovalStandardsDocumentsApprovalAuthority1815905UnitedStatesFederalCommunicationsCFR47,Part90,FCC1825910Commission(FCC)SubpartsIandM1845920AAFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.FromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.9免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02FIG.11ClassATransmitSpectrumMasklesspower.Themaximumoutputpowerforadeviceis28.8TABLE9DSRCDeviceClassesandTransmitPowerLevelsAdBm(750mW).AdeviceisallowedtotransmitmorepowertoMaximumDeviceovercomecablelossestotheantennaaslongastheantennaDeviceClassOutputPower,inputpowerdoesnotexceed28.8dBmandtheEIRPdoesnotdBmexceed44.8dBm.However,speci®cchannelsandcategoriesA0ofuseshaveadditionallimitations.B10C207.9.1.2PublicSafetyandPrivateRSUinstallationsoperat-D28.8ormoreinginChannels174,175,and176areusedtoimplementsmallAFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.andmediumrangeoperations.AnyRSUinstallationtransmis-sioninthesechannelsshallnotexceed28.8-dBmantennainputkHzoutsideallchannelandbandedges.Thiswillbeaccom-powerand33-dBmEIRP.plishedbyattenuatingthetransmittedsignalin100kHz7.9.1.3PublicSafetyRSUinstallationtransmissionsinoutsidethechannelandbandedgesby55+10log(P)dB,Channel178shallnotexceed28.8-dBmantennainputpowerwherePisthetotaltransmittedpowerinwatts.Thetransmittedand33-dBmEIRP.spectraldensityofthetransmittedsignalforaalldevicesshall7.9.1.4TheDSRCChannels180,181,and182areusedtofallwithinthespectralmask,asdetailedinTable105.Theimplementsmallzoneoperations.PublicSafetyandPrivatemeasurementsshallbemadeusinga100-kHzresolutionRSUinstallationinthesechannelsshallnotexceed10-dBmbandwidthanda30-kHzvideobandwidth.antennainputpowerand23-dBmEIRP.Theseinstallations7.9.2.2Anexampletransmittedspectraldensityandspectralshallalsouseanantennawithaminimum6-dBigain.maskforaclassAdeviceareshowninFig.11.Inaddition,allInterferingemissionsfromanRSUinstallationinthesechan-DSRCsiteinstallationsshalllimittheEIRPinthetransmittednelsshallnotexceedamaximumreceivedpowerlevelof±76spectrumto±25dBmorlessinthe100kHzatthechanneldBmat15mfromtheinstallationbeingevaluated.Theedgesandthebandedges.Additional®lteringthatsupplementsreceivedpowerlevelismeasuredat1.2mabovegroundlevelthe®lteringprovidedbythetransmittermaybeneededforwitha0-dBiantenna.someantenna/transmittercombinations.7.9.1.5PublicSafetyRSUoperationsinChannel184shall7.9.3SpuriousTransmissionsÐSpurioustransmissionsnotexceed28.8-dBmantennainputpowerand40-dBmEIRP.fromcompliantdevicesshallcomplywithnationalregulations.7.9.1.6PrivateOBUoperationsinChannels172,174,175,7.9.4TransmitCenterFrequencyToleranceÐThetransmit-176,178,and184shallnotexceed28.8-dBmantennainputtedcenterfrequencytoleranceshallbe610-ppmmaximumforpowerand33-dBmEIRP.PrivateOBUoperationsinChannelsRSUsand610-ppmmaximumforOBUs.Thetransmitcenter180,182,and183shallnotexceed20-dBmantennainputfrequencyandthesymbolclockfrequencyshallbederivedpowerand23-dBmEIRP.fromthesamereferenceoscillator.7.9.1.7PublicSafetyOBUoperationsinChannels172,174,7.9.5SymbolClockFrequencyToleranceÐThesymbol175,and176shallnotexceed28.8-dBmantennainputpowerclockfrequencytoleranceshallbe610-ppmmaximumforand33-dBmEIRP.RSUsand610-ppmmaximumforOBUs.Thetransmitcenter7.9.1.8PublicSafetyOBUoperationsinChannel178shallfrequencyandthesymbolclockfrequencyshallbederivednotexceed28.8-dBmantennainputpowerand44.8-dBmfromthesamereferenceoscillator.EIRP.7.9.1.9TheRSUsandOBUsshalltransmitonlythepowerneededtocommunicateoverthedistancerequiredbytheTABLE10DSRCSpectralMask(ReductioninPowerSpectralAapplicationbeingsupported.Density,dBr)7.9.1.10Fourclassesofoperationarespeci®edforDSRC64.5-MHz65.0-MHz65.5-MHz610-MHz615-MHzClass5OffsetOffsetOffsetOffsetOffsetdevicesinthe5.850to5.925bandandareshowninTable9.7.9.2TransmitSpectrumMask:ClassA0-10-20-28-40ClassB0-16-20-28-407.9.2.1TheDSRCtransmittedspectrummaskisrelativetoClassC0-26-32-40-50thedeviceclassofoperation.ThepowerinthetransmittedClassD0-35-45-55-65AspectrumforallDSRCdevicesshallbe±25dBmorlessin100FromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.10免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02A7.9.6ModulationAccuracyÐTransmitmodulationaccu-TABLE12Type1ReceiverPerformanceRequirementsracyspeci®cationsaredescribedasfollows.ThetestmethodisDataRate,MinimumAdjacentChannelAlternateAdjacentdescribedin7.9.7.Mbits/sSensitivity,dBmRejection,dBChannelRejection,dB7.9.6.1TransmitterCenterFrequencyLeakageÐCertain3-8518344.5-841733transmitterimplementationsmaycauseleakageofthecenter6-821632frequencycomponent.Suchleakage(whichmanifestsitselfin9-801531areceiverasenergyinthecenterfrequencycomponent)shall12-77132918-701127notexceed±15dBrelativetooveralltransmittedpoweror,24-69824equivalently,+2dBrelativetotheaverageenergyoftherestof27-67420thesubcarriers.ThedataforthistestshallbederivedfromtheAFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.channelestimationphase.7.9.6.2TransmitterSpectralFlatnessÐTheaverageenergyTABLE13Type2ReceiverPerformanceRequirementsAoftheconstellationsineachofthespectrallines±16..±1andDataRate,MinimumAdjacentChannelAlternateAdjacent+1..+16willdeviatenomorethan62dBfromtheiraverageMbits/sSensitivity,dBmRejection,dBChannelRejection,dBenergy.Theaverageenergyoftheconstellationsineachofthe3-853744spectrallines±26..±17and+17..+26willdeviatenomore4.5-843643than+2/±4dBfromtheaverageenergyofspectrallines±16..6-8235429-803441±1and+1..+16.Thedataforthistestshallbederivedfromthe12-773239channelestimationstep.18-7030377.9.6.3TransmitterConstellationErrorÐTherelativecon-24-69273427-672330stellationRMSerror,averagedoversubcarriers,OFDMAFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.frames,andpackets,shallnotexceedadata-ratedependentvalueaccordingtoTable115.7.9.7TransmitModulationAccuracyTestÐThetransmitsignal,until10%PERiscausedforaPSDUlengthof1000modulationaccuracytestshallbeperformedbyinstrumenta-bytes.Thepowerdifferencebetweentheinterferingandthetioncapableofconvertingthetransmittedsignalintoastreamdesiredchannelisthecorrespondingadjacentchannelrejec-ofcomplexsamplesat10Msamples/sormore,withsufficienttion.TheinterferingsignalintheadjacentchannelshallbeanaccuracyintermsofI/Qarmamplitudeandphasebalance,dcOFDMsignalconformingtoaClassAspectralmask,unsyn-offsets,phasenoise,andsoforth.Apossibleembodimentofchronizedwiththesignalinthechannelundertest.ForasuchasetupisconvertingthesignaltoalowIFfrequencywithcompliantOFDMPHY,thecorrespondingrejectionshallbenolessthanspeci®edinTable125foraType1deviceandTableamicrowavesynthesizer,samplingthesignalwithadigital135foraType2device.oscilloscopeanddecomposingitdigitallyintoquadraturecomponents.7.9.8.3NonadjacentChannelRejectionÐThenonadjacent7.9.8channelrejectionshallbemeasuredbysettingthedesired7.9.8.1ReceiverMinimumInputLevelSensitivityÐThesignal"sstrength3dBabovetherate-dependentsensitivityspeci®edinTable125orTable135forthetypeofdevicebeingpacketerrorrate(PER)shallbelessthan10%ataPSDUlengthof1000bytesforrate-dependentinputlevels.Thesetested,andraisingthepoweroftheinterferingsignaluntilalevelsshallbelessthanorequaltothenumberslistedinTable10%PERoccursforaPSDUlengthof1000bytes.Thepower125.Theminimuminputlevelsaremeasuredattheantennadifferencebetweentheinterferingandthedesiredchannelisconnector(NFof10-dBand5-dBimplementationmarginsarethecorrespondingnonadjacentchannelrejection.Theinterfer-assumed).ingsignalinthenonadjacentchannelshallbeanOFDMsignal7.9.8.2AdjacentChannelRejectionÐTwocategoriesofconformingtoaClassAspectralmask,unsynchronizedwithadjacentchannelrejectioncapabilitywillbeallowed.Theyarethesignalinthechannelundertest.ForaconformedOFDMdesignatedasType1andType2.TheadjacentchannelPHY,thecorrespondingrejectionshallbenolessthanspeci®edinTable125.rejectionshallbemeasuredbysettingthedesiredsignal"sstrength3dBabovetherate-dependentsensitivityspeci®edin7.9.8.4CCASensitivityÐThestartofavalidOFDMtrans-Table125andTable135andraisingthepoweroftheinterferingmissionatareceivelevelequaltoorgreaterthantheminimum3-Mbit/s(±85-dBm)sensitivityshallcauseCCAtoindicateTABLE11AllowedRelativeConstellationErrorVersusDatabusywithaprobability>90%within8µs.IfthepreambleARateportionwasmissed,thereceivershallholdthecarriersenseDataRate,RelativeConstellation(CS)signalbusyforanysignal20dBabovetheminimum3Mbits/sError,dBMbit/ssensitivity(±65dBm).3-57.10OFDMPHYManagementInformationBaseÐAll4.5-86-10OFDMPHYmanagementinformationbaseattributesare9-13de®nedinClause13ofIEEEStd802.11,1999Edition,with12-16speci®cvaluesde®nedinTable145.ThecolumntitledªOp-18-19erationalsemanticsºinTable145containstwotypes:staticand24-2227-25dynamic.StaticMIBattributesare®xedandcannotbemodi-A®edforagivenPHYimplementation.DynamicMIBattributesFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.11免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02ATABLE14MIBAttributeDefaultValues/RangesManagedObjectDefaultValue/RangeOperationalSemanticsdot11PHYOperationTabledot11PHYtypeDSRC-5.(05)dynamicdot11currentregdomainimplementationdependentstaticdot11currentfrequencybandimplementationdependentstaticdot11temptypeimplementationdependentstaticdot11deviceclassimplementationdependentdynamicdot11ACRtypeimplementationdependentdynamicdot11PHYAntennaTabledot11currentTxantennaimplementationdependentdynamicdot11diversitysupportimplementationdependentstaticdot11currentRxantennaimplementationdependentdynamicdot11PHYTxPowerTabledot11numbersupportedpowerlevelsimplementationdependentstaticdot11TxpowerLevel1implementationdependentstaticdot11TxpowerLevel2implementationdependentstaticdot11TxpowerLevel3implementationdependentstaticdot11TxpowerLevel4implementationdependentstaticdot11TxpowerLevel5implementationdependentstaticdot11TxpowerLevel6implementationdependentstaticdot11TxpowerLevel7implementationdependentstaticdot11TxpowerLevel8implementationdependentstaticdot11TxpowerLevel9implementationdependentstaticdot11TxpowerLevel10implementationdependentstaticdot11TxpowerLevel11implementationdependentstaticdot11TxpowerLevel12implementationdependentstaticdot11TxpowerLevel13implementationdependentstaticdot11TxpowerLevel14implementationdependentstaticdot11TxpowerLevel15implementationdependentstaticdot11TxpowerLevel16implementationdependentstaticdot11TxpowerLevel17implementationdependentstaticdot11TxpowerLevel18implementationdependentstaticdot11TxpowerLevel19implementationdependentstaticdot11TxpowerLevel20implementationdependentstaticdot11TxpowerLevel21implementationdependentstaticdot11TxpowerLevel22implementationdependentstaticdot11TxpowerLevel23implementationdependentstaticdot11TxpowerLevel24implementationdependentstaticdot11TxpowerLevel25implementationdependentstaticdot11TxpowerLevel26implementationdependentstaticdot11TxpowerLevel27implementationdependentstaticdot11TxpowerLevel28implementationdependentstaticdot11TxpowerLevel29implementationdependentstaticdot11TxpowerLevel30implementationdependentstaticdot11TxpowerLevel31implementationdependentstaticdot11TxpowerLevel32implementationdependentstaticdot11TxpowerLevel33implementationdependentstaticdot11TxpowerLevel34implementationdependentstaticdot11TxpowerLevel35implementationdependentstaticdot11TxpowerLevel36implementationdependentstaticdot11TxpowerLevel37implementationdependentstaticdot11TxpowerLevel38implementationdependentstaticdot11TxpowerLevel39implementationdependentstaticdot11TxpowerLevel40implementationdependentstaticdot11TxpowerLevel41implementationdependentstaticdot11TxpowerLevel42implementationdependentstaticdot11TxpowerLevel43implementationdependentstaticdot11TxpowerLevel44implementationdependentstaticdot11TxpowerLevel45implementationdependentstaticdot11TxpowerLevel46implementationdependentstaticdot11TxpowerLevel47implementationdependentstaticdot11TxpowerLevel48implementationdependentstaticdot11TxpowerLevel49implementationdependentstaticdot11TxpowerLevel50implementationdependentstaticdot11TxpowerLevel51implementationdependentstaticdot11TxpowerLevel52implementationdependentstaticdot11TxpowerLevel53implementationdependentstaticdot11TxpowerLevel54implementationdependentstaticdot11TxpowerLevel55implementationdependentstaticdot11TxpowerLevel56implementationdependentstaticdot11TxpowerLevel57implementationdependentstaticdot11TxpowerLevel58implementationdependentstaticdot11TxpowerLevel59implementationdependentstaticdot11TxpowerLevel60implementationdependentstaticdot11TxpowerLevel61implementationdependentstaticdot11TxpowerLevel62implementationdependentstaticdot11TxpowerLevel63implementationdependentstaticdot11TxpowerLevel64implementationdependentstaticAFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.12免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02TABLE14MIBAttributeDefaultValues/Ranges(continued)ManagedObjectDefaultValue/RangeOperationalSemanticsdot11currentTxpowerlevelimplementationdependentdynamicdot11RegDomainssupportedTabledot11regdomainssupportedimplementationdependentstaticdot11frequencybandssupportedimplementationdependentstaticdot11PHYAntennasListTabledot11supportedTxantennaimplementationdependentstaticdot11supportedRxantennaimplementationdependentstaticdot11diversityselectionRximplementationdependentdynamicdot11supportedDataRatesTxTabledot11supporteddataratesTxvalue3,4.5,6,9,12,18,24,and27Mbit/sstaticMandatoryRates:3,6,and12dot11supportedDataRatesRxTabledot11supporteddataratesRxvalue3,4.5,6,9,12,18,24,staticand27Mbit/sMandatoryRates:3,6,and12dot11PHYOFDMTabledot11currentfrequencyimplementationdependentdynamicdot11TIthresholdimplementationdependentdynamiccanbemodi®edbysomemanagemententity.7.12PMD_SAPServicePrimitiveParametersÐTable1657.11OFDMPHYCharacteristicsÐThestaticOFDMPHYshowstheparametersusedbyoneormoreofthePMD_SAPcharacteristics,providedthroughthePLME-serviceprimitives.CHARACTERISTICSserviceprimitive,areshowninTable155.Thede®nitionsforthesecharacteristicsaregivenin10.4.ATABLE15OFDMPHYCharacteristicsCharacteristicsValueaSlotTime16µsaSIFSTime32µsaCCATime<8µsaRxTxTurnaroundTime<2µsaTxPLCPDelayimplementationdependentaRxPLCPDelayimplementationdependentaRxTxSwitchTime<<1µsaTxRampOnTimeimplementationdependentaTxRampOffTimeimplementationdependentaTxRFDelayimplementationdependentaRxRFDelayimplementationdependentaAirPropagationTime<4µsaMACProcessingDelay<2µsaPreambleLength40µsaPLCPHeaderLength8µsaMPDUMaxLength4095aCWmin15aCWmax1023AFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.13免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02ATABLE16ListofParametersforthePMDPrimitivesParameterAssociatePrimitiveValueTXD_UNITPMD_DATA.requestone(1),zero(0):oneOFDMsymbolvalueRXD_UNITPMD_DATA.indicateone(1),zero(0):oneOFDMsymbolvalueTXPWR_LEVELPMD_TXPWRLVL.request1-64(maxof64levels)RATEPMD_RATE.request3Mbit/s(forBPSK)6Mbit/s(forQPSK)12Mbit/s(for16-QAM)24Mbit/s(for64-QAM)RSSIPMD_RSSI.indicate0-8bitsofRSSIAFromIEEEStd.802.11a.Copyright1999IEEE.Allrightsreserved.ANNEX(MandatoryInformation)A1.ASN.1ENCODINGOFTHEMACANDPHYMIBA1.1AddthefollowingvariablestothePHYMIB:51.In“Majorsections”ofAnnexD,addthefollowingtexttotheendof“PHYAttributes”section:“--dot11PhyOFDMTable::={dot11phy11}”2.In“dot11PhyOperationTABLE”sectionofAnnexD,update“dot11PHYTypeattribute”sectionasthefollowingtext:“dot11PHYTypeOBJECT-TYPESYNTAXINTEGER{fhss(1),dsss(2),irbaseband(3),ofdm(4),dsrc(5)}MAX-ACCESSread-onlySTATUScurrentDESCRIPTION”“Thisisan8-bitintegervaluethatidentifiesthePHYtypesupportedbytheattachedPLCPandPMD.currentlydefinedvaluesandtheircorrespondingPHYtypesare:FHSS2.4GHz=01,DSSS2.4GHz=02,IRBaseband=03,OFDM5GHz=04,DSRC5GHz=05”::={dot11PhyOperationEntry1}3.InAnnexD,addthefollowingtexttotheendof“dot11supportedDataRateRxTABLE”section:--**********************************************************************--*dot11PhyOFDMTABLE--**********************************************************************dot11PhyOFDMTableOBJECT-TYPESYNTAXSEQUENCEOFDot11PhyOFDMEntryMAX-ACCESSnot-accessibleSTATUScurrentDESCRIPTION“Groupofattributesfordot11PhyOFDMTable.ImplementedasatableindexedonifindextoallowformultipleinstancesonanAgent.”::={dot11phy11}dot11PhyOFDMEntryOBJECT-TYPESYNTAXDot11PhyOFDMEntryMAX-ACCESSnot-accessibleSTATUScurrentDESCRIPTION“Anentryinthedot11PhyOFDMTable.ifIndex-EachIEEE802.11interfaceisrepresentedbyanifEntry.InterfacetablesinthisMIBmoduleareindexedbyifIndex.”INDEX{ifIndex}14免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02::={dot11PhyOFDMTable1}Dot11PhyOFDMEntry::=SEQUENCE{dot11currentFrequencyINTEGER,dot11TIThresholdINTEGER,dot11FrequencyBandssupported}dot11currentFrequencyOBJECT-TYPESYNTAXINTEGER(0..200)MAX-ACCESSread-writeSTATUScurrentDESCRIPTION“ThenumberofthecurrentoperatingfrequencychanneloftheOFDMPHY.”::={dot11PhyOFDMEntry1}dot11TIThresholdSYNTAXINTEGER32MAX-ACCESSread-writeSTATUScurrentDESCRIPTION“TheThresholdbeingusedtodetectabusymedium(frequency).CCAshallreportabusymediumupondetectingtheRSSIabovethisthreshold.”::={dot11PhyOFDMEntry2}dot11FrequencyBandssupportedSYNTAXINTEGER(1..31)MAX-ACCESSread-onlySTATUScurrentDESCRIPTION“ThecapabilityoftheOFDMPHYimplementationtooperateinthethreeU-NIIbands.Codedasanintegervalueofathreebitfieldasfollows:bit0..capableofoperatinginthelower(5.15-5.25GHz)U-NIIbandbit1..capableofoperatinginthemiddle(5.25-5.35GHz)U-NIIbandbit2..capableofoperatingintheupper(5.725-5.825GHz)U-NIIbandbit3..capableofoperatinginthe(5.850-5.925GHz)ITS-RSbandForexample,foranimplementationcapableofoperatinginthelowerandmidbandsthisattributewouldtakethevalue3.”::={dot11PhyOFDMEntry3}dot11deviceTypeOBJECT-TYPESYNTAXINTEGER(1..4)MAX-ACCESSread-writeSTATUScurrentDESCRIPTION“ThedevicepowerLevel:ClassA=1,ClassB=2,ClassC=3,ClassD=4.”::={dot11PhyOFDMEntry4}dot11ACRTypeOBJECT-TYPESYNTAXINTEGER(1..2)MAX-ACCESSread-writeSTATUScurrentDESCRIPTION“TheAdjacent/AlternateChannelRejectiontype.”::={dot11PhyOFDMEntry5}--**********************************************************************--*Endofdot11PhyOFDMTABLE--**********************************************************************4.InAnnexD,update“compliancestatements”sectionasthefol-lowingtext:**********************************************************************--*compliancestatements--**********************************************************************dot11ComplianceMODULE-COMPLIANCESTATUScurrent15免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02DESCRIPTION“ThecompliancestatementforSNMPv2entitiesthatimplementtheIEEE802.11MIB.”MODULE--thismoduleMANDATORY-GROUPS{dot11SMTbase,dot11MACbase,dot11CountersGroup,dot11SmtAuthenticationAlgorithms,dot11ResourceTypeID,dot11PhyOperationComplianceGroup}GROUPdot11PhyDSSSComplianceGroupDESCRIPTION“implementationofthisgroupisrequiredwhenobjectdot11PHYTypehasthevalueofdsss.Thisgroupismutuallyexclusivewiththegroupsdot11PhyIRComplianceGroup,dot11PhyFHSSComplianceGroupanddot11PhyOFDMComplianceGroup.”GROUPdot11PhyIRComplianceGroupDESCRIPTION“implementationofthisgroupisrequiredwhenobjectdot11PHYTypehasthevalueofirbaseband.Thisgroupismutuallyexclusivewiththegroupsdot11PhyDSSSComplianceGroup,dot11PhyFHSSComplianceGroupanddot11PhyOFDMComplianceGroup.”GROUPdot11PhyFHSSComplianceGroupDESCRIPTION“implementationofthisgroupisrequiredwhenobjectdot11PHYTypehasthevalueoffhss.Thisgroupismutuallyexclusivewiththegroupsdot11PhyDSSSComplianceGroup,dot11PhyIRComplianceGroupanddot11PhyOFDMComplianceGroup.”GROUPdot11OFDMComplianceGroupDESCRIPTION“implementationofthisgroupisrequiredwhenobjectdot11PHYTypehasthevalueofofdm.Thisgroupismutuallyexclusivewiththegroupsdot11PhyDSSSComplianceGroup,dot11PhyIRComplianceGroupanddot11PhyFHSSComplianceGroup.”--OPTIONAL-GROUPS{dot11SMTprivacy,dot11MACStatistics,--dot11PhyAntennaComplianceGroup,dot11PhyTxPowerComplianceGroup,--dot11PhyRegDomainsSupportGroup,--dot11PhyAntennasListGroup,dot11PhyRateGroup}--::={dot11Compliances1}GROUPdot11PhyDSRCComplianceGroupDESCRIPTION“implementationofthisgroupisrequiredwhenobjectdot11PHYTypehasthevalueofdsrc.Thisgroupismutuallyexclusivewiththegroupsdot11PhyIRComplianceGroupanddot11PhyFHSSComplianceGroup,butiscompatiblewithdot11PhyOFDMComplianceGroupanddot11PhyDSSSComplianceGroup.”5.In“Groups-unitsofconformance”sectionofAnnexD,addthefollowingtexttotheendof“dot11CountersGroup”section:“dot11PhyOFDMComplianceGroupOBJECT-GROUPOBJECTS{dot11currentFrequency,dot11TIThreshold,dot11FrequencyBandssupported}STATUScurrentDESCRIPTION“AttributesthatconfiguretheOFDMforIEEE802.11.”::={dot11Groups17}”“dot11PhyDSRCComplianceGroupOBJECT-GROUP16免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02OBJECTS{dot11currentFrequency,dot11TIThreshold,dot11FrequencyBandssupported,dot11deviceType,dot11ACRType}STATUScurrentDESCRIPTION“AttributesthatconfiguretheOFDMforDSRC.”::={dot11Groups18}”APPENDIX(NonmandatoryInformation)X1.CHANGESTOANNEXAANDANNEXDFORDSRCUPDATEX1.1IUTCon®guration:5ThisappendixincludesonlythepartsofAnnexAandAnnexDthatcontainchangesrelatedtoDSRC.ItemIUTconfigurationReferencesStatusSupport*CF1Accesspoint5.2O.1YesMNoM*CF2Independentstation(notanAP)5.2O.1YesMNoM*CF3Frequency-hoppingspreadspectrum(FHSS)PHYforthe2.4GHzO.2YesMNoMband*CF4Directsequencespreadspectrum(DSSS)PHYforthe2.4GHzO.2YesMNoMband*CF5InfraredPHYO.2YesMNoM*CF6OFDMPHYforthe5GHzbandO.2YesMNoM*CF7DSRCPHYforthe5GHzbandO.2YesMNoMX1.2OrthogonalFrequencyDivisionMultiplexPHYFunc-tions:5ItemFeatureReferencesStatusSupportOF1:OFDMPHYSpecificServiceParametersOF1.1TXVECTORparameter:LENGTH17.2.2.1MYesMNoMOF1.2TXVECTORparameter:DATARATE17.2.2.2MYesMNoMOF1.2.1DATARATE=3.0Mbit/s17.2.2.2MYesMNoM*OF1.2.2DATARATE=4.5Mbit/s17.2.2.2OYesMNoMOF1.2.3DATARATE=6.0Mbit/s17.2.2.2MYesMNoM*OF1.2.4DATARATE=9.0Mbit/s17.2.2.2OYesMNoMOF1.2.5DATARATE=12.0Mbit/s17.2.2.2MYesMNoM*OF1.2.6DATARATE=18.0Mbit/s17.2.2.2OYesMNoM*OF1.2.7DATARATE=24.0Mbit/s17.2.2.2OYesMNoM*OF1.2.8DATARATE=27.0Mbit/s17.2.2.2OYesMNoMOF1.3TXVECTORparameter:SERVICE17.2.2.3MYesMNoMOF1.4TXVECTORparameter:TXPWR_LEVEL17.2.2.4MYesMNoMOF1.5RXVECTORparameter:LENGTH17.2.3.1MYesMNoMOF1.6RXVECTORparameter:RSSI17.2.3.2MYesMNoMOF2:OFDMPLCPSublayerOF2.1RATE-dependentparameters17.3.2.2MYesMNoMOF2.2Timingrelatedparameters17.3.2.3MYesMNoMOF2.3PLCPPreamble:SYNC17.3.3MYesMNoMOF2.4PLCPheader:SIGNAL17.3.4MYesMNoMOF2.5PLCPheader:LENGTH17.3.4.1MYesMNoMOF2.6PLCPheader:RATE17.3.4.2MYesMNoMOF2.7PLCPheader:parity,reserve17.3.4.3MYesMNoMOF2.8PLCPheader:SIGNALTAIL17.3.4.3MYesMNoMOF2.9PLCPheader:SERVICE17.3.5.1MYesMNoMOF2.10PPDU:TAIL17.3.5.2MYesMNoMOF2.11PPDU:PAD17.3.5.3MYesMNoMOF2.12PLCP/OFDMPHYdatascrambler17.3.5.4MYesMNoManddescramblerOF2.13Convolutionalencoder17.3.5.5MYesMNoMOF2.13.1RateR=1/217.3.5.5MYesMNoMOF2.13.2PuncturedcodingR=2/317.3.5.5OF1.2.7:MYesMNoMN/AMOF2.13.3PuncturedcodingR=3/417.3.5.5OF1.2.2OROF1.2.4OROF1.2.6OROF1.2.8:MYesMNoMN/AM17免费标准网(www.freebz.net)无需注册即可下载 标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)E2213–02ItemFeatureReferencesStatusSupportOF2.14Datainterleaving17.3.5.6MYesMNoMOF2.15Subcarriermodulationmapping17.3.5.7MYesMNoMOF2.15.1BPSK17.3.5.7MYesMNoMOF2.15.2QPSK17.3.5.7MYesMNoMOF2.15.316-QAM17.3.5.7MYesMNoMOF2.15.464-QAM17.3.5.7OF1.2.7OROF1.2.8:MYesMNoMN/AMOF2.16Pilotsubcarriers17.3.5.8MYesMNoMOF2.17OFDMmodulation17.3.5.9MYesMNoMOF2.18Packetdurationcalculation17.3.5.10MYesMNoMOF2.19CCAOF2.19.1CCA:RSSI17.3.6MYesMNoMOF2.19.2CCA:indicationtoMACsublayer17.3.6MYesMNoMOF2.20PLCPdatamodulationandmodulation17.3.7MYesMNoMratechangeOF3:PDMOperatingSpecificationGeneralOF3.1Occupiedchannelbandwidth17.3.8.1MYesMNoMOF3.2Operatingfrequencyrange17.3.8.2MYesMNoMOF3.3Channelization17.3.8.3MYesMNoM*OF3.3.1LowerU-NIIsubband(5.155.25GHz)17.3.8.3O.1YesMNoM*OF3.3.2MiddleU-NIIsubband(5.255.35GHz)17.3.8.3O.1YesMNoM*OF3.3.3UpperU-NIIsubband(5.7255.825GHz)17.3.8.3O.1YesMNoM*OF3.3.4ITS-RSband(5.8505.925GHz)17.3.8.3O.1YesMNoMOF3.4numberofoperatingchannels17.3.8.3MYesMNoMOF3.5Operatingchannelfrequencies17.3.8.3MYesMNoMOF3.6Transmitandreceiveinbandandoutof17.3.8.4MYesMNoMbandspuriousemissionOF3.7TXRFdelay17.3.8.5MYesMNoMOF3.8SlotTime17.3.8.6MYesMNoMOF3.9Transmitandreceiveantennaport17.3.8.7MYesMNoMimpedanceOF3.10Transmitandreceiveoperating17.3.8.8MYesMNoMtemperaturerangeOF3.10.1Type1(0°Cto40°C)17.3.8.8MYesMNoMOF3.10.2Type2(20°Cto50°C)17.3.8.8OYesMNoMOF3.10.3Type3(30°Cto70°C)17.3.8.8OYesMNoMOF3.10.4Type4(40°Cto85°C)17.3.8.8OYesMNoMOF4:PMDTransmitSpecificationOF4.1TransmitpowerLevelsMYesMNoMOF4.1.1PowerLevel(5.155.25GHz)17.3.9.1OF3.3.1:MYesMNoMN/AMOF4.1.2PowerLevel(5.255.35GHz)17.3.9.1OF3.3.2:MYesMNoMN/AMOF4.1.3PowerLevel(5.7255.825GHz)17.3.9.1OF3.3.3:MYesMNoMN/AMOF4.1.4ClassAdevicePowerLevel(5.8505.92517.3.9.1OF3.3.3:MYesMNoMN/AMGHz)OF4.1.5ClassBdevicePowerLevel17.3.9.1OF3.3.3:MYesMNoMN/AM(5.8505.925GHz)OF4.1.6ClassCdevicePowerLevel17.3.9.1OF3.3.3:MYesMNoMN/AM(5.8505.925GHz)OF4.1.7ClassDdevicePowerLevel17.3.9.1OF3.3.3:MYesMNoMN/AM(5.8505.925GHz)OF4.2Spectrummask17.3.9.2MYesMNoMOF4.2.1ClassAdeviceSpectrumMask(5.85017.3.9.1OF3.3.3:MYesMNoMN/AM5.925GHz)OF4.2.2ClassBdeviceSpectrumMask(5.85017.3.9.1OF3.3.3:MYesMNoMN/AM5.925GHz)OF4.2.3ClassCdeviceSpectrumMask(5.85017.3.9.1OF3.3.3:MYesMNoMN/AM5.925GHz)OF4.2.4ClassDdeviceSpectrumMask(5.85017.3.9.1OF3.3.3:MYesMNoMN/AM5.925GHz)OF4.3Spurious17.3.9.3MYesMNoMOF4.4Centerfrequencytolerance17.3.9.4MYesMNoMOF4.5Clockfrequencytolerance17.3.9.5MYesMNoMOF4.6Modulationaccuracy17.3.9.6MYesMNoMOF4.6.1Centerfrequencyleakage17.3.9.6.1MYesMNoMOF4.6.2Spectralflatness17.3.9.6.2MYesMNoMOF4.6.3Transmitterconstellationerror<5dB17.3.9.6.3MYesMNoMOF4.6.4Transmitterconstellationerror<8dB17.3.9.6.3OF1.2.2:MYesMNoMN/AMOF4.6.5Transmitterconstellationerror<10dB17.3.9.6.3MYesMNoMOF4.6.6Transmitterconstellationerror<13dB17.3.9.6.3OF1.2.4:MYesMNoMN/AMOF4.6.7Transmitterconstellationerror<16dB17.3.9.6.3MYesMNoMOF4.6.8Transmitterconstellationerror<19dB17.3.9.6.3OF1.2.6:MYesMNoMN/AMOF4.6.9Transmitterconstellationerror<22db17.3.9.6.3OF1.2.7:MYesMNoMN/AMOF4.6.10Transmitterconstellationerror<25dB17.3.9.6.3OF1.2.8:MYesMNoMN/AMOF5:PMDReceiverSpecificationsOF5.1MinimuminputLevelsensitivityatPER=10%with1000octetframesOF5.1.185dBmfor3Mbit/s17.3.10.1MYesMNoM18免费标准网(www.freebz.net)无需注册即可下载 免费标准网(www.freebz.net)E2213–02ItemFeatureReferencesStatusSupportOF5.1.284dBmfor4.5Mbit/s17.3.10.1OF1.2.2:MYesMNoMN/AMOF5.1.382dBmfor6Mbit/s17.3.10.1MYesMNoMOF5.1.480dBmfor9Mbit/s17.3.10.1OF1.2.4:MYesMNoMN/AMOF5.1.577dBmfor12Mbit/s17.3.10.1MYesMNoMOF5.1.670dBmfor18Mbit/s17.3.10.1OF1.2.6:MYesMNoMN/AMOF5.1.769dBmfor24Mbit/s17.3.10.1OF1.2.7:MYesMNoMN/AMOF5.1.867dBmfor27Mbit/s17.3.10.1OF1.2.8:MYesMNoMN/AMOF5.2Adjacentchannelrejection17.3.10.2MYesMNoMOF5.2.1Type1(802.11acompliant)17.3.10.2MYesMNoMOF5.2.2Type2(DSRCenhanced)17.3.10.2OYesMNoMN/AMOF5.3Non-adjacentchannelrejection17.3.10.3MYesMNoMOF5.3.1Type1(802.11acompliant)17.3.10.3MYesMNoMOF5.3.2Type2(DSRCenhanced)17.3.10.3OYesMNoMN/AMOF5.4MaximuminputLevel17.3.10.4MYesMNoMOF5.5CCAsensitivity17.3.10.5MYesMNoMOF6:PLCPTransmitProcedureOF6.1Transmit:transmitonMACrequest17.3.13MYesMNoMOF6.2.Transmit:formatanddataencoding17.3.13MYesMNoMOF6.3Transmit:timing17.3.13MYesMNoMOF7:PLCPReceiveProcedureOF7.1Receive:receiveanddatadecoding17.3.14MYesMNoMOF8:PHYLMEOF8.1PLME:supportPLME_SAP17.4.1MYesMNoMmanagementprimitivesOF8.2PLME:supportPHYmanagement17.4.2MYesMNoMinformationbaseOF8.3PLME:supportPHYcharacteristics17.4.3MYesMNoMOF9:OFDMPMDSublayerOF9.1PMD:supportPMD_SAPpeer-to-peer17.5.4.1,MYesMNoMserviceprimitives17.5.5.1,17.5.5.2OF9.2PMD:supportPMD_SAPsublayer-to-17.5.4.2,MYesMNoMsublayerserviceprimitives17.5.5.3,17.5.5.4,17.5.5.5,17.5.5.6,17.5.5.7OF9.3PMD_SAPserviceprimitiveparametersOF9.3.1Parameter:TXD_UNIT17.5.4.3MYesMNoMOF9.3.2Parameter:RXD_UNIT17.5.4.3MYesMNoMOF9.3.3Parameter:TXPWR_LEVEL17.5.4.3MYesMNoMOF9.3.4Parameter:RATE(3Mbit/s)17.5.4.3MYesMNoMOF9.3.5Parameter:RATE(6Mbit/s)17.5.4.3MYesMNoMOF9.3.6Parameter:RATE(12Mbit/s)17.5.4.3MYesMNoMOF9.3.7Parameter:RATE(24Mbit/s)17.5.4.3OYesMNoMOF9.3.8Parameter:RSSI17.5.4.3MYesMNoMOF10:GeographicAreaSpecificRequirements*OF10.1Geographicareas17.3.8.2,MYesMNoM17.3.8.3,17.3.8.4,17.3.9.3ASTMInternationaltakesnopositionrespectingthevalidityofanypatentrightsassertedinconnectionwithanyitemmentionedinthisstandard.Usersofthisstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,areentirelytheirownresponsibility.Thisstandardissubjecttorevisionatanytimebytheresponsibletechnicalcommitteeandmustbereviewedeveryfiveyearsandifnotrevised,eitherreapprovedorwithdrawn.YourcommentsareinvitedeitherforrevisionofthisstandardorforadditionalstandardsandshouldbeaddressedtoASTMInternationalHeadquarters.Yourcommentswillreceivecarefulconsiderationatameetingoftheresponsibletechnicalcommittee,whichyoumayattend.IfyoufeelthatyourcommentshavenotreceivedafairhearingyoushouldmakeyourviewsknowntotheASTMCommitteeonStandards,attheaddressshownbelow.ThisstandardiscopyrightedbyASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.Individualreprints(singleormultiplecopies)ofthisstandardmaybeobtainedbycontactingASTMattheaboveaddressorat610-832-9585(phone),610-832-9555(fax),orservice@astm.org(e-mail);orthroughtheASTMwebsite(www.astm.org).19免费标准网(www.freebz.net)无需注册即可下载'