2号库3 2005测量员位置时间10 6 pm数据

ExecutveSurveyFloorPlanSurveyPre-Install/Post-InstallSurvey-WLANDeployment802.11nDeploymentRequirements5CurrentAPPlacementandConfguratonAPPlacementCurrentDeploymentSiteAccessPointCoverageOverallSignalChannelPredictvePHYDataRateOperatngChannelSignalRedundantAPChannelPHYDataPredictveSignal/NoiseNoiseUserOperatngChannelHighestMCSExecutveThiswirelesssitesurveyandRFanalysiswereperformedinordertogainanin-depthunderstandingofpresentRFinterferencesourcesandtomeetoverallwirelesscoveragerequirements.Theprimarygoalandsubsequentobjectvesweredesignedwithcoverage,desiredthroughputandusabilityasprimarydrivingrequirementsfromthebusinessgroup.ThissurveywascreatedusinganindustrystandardsetofAirMagnetSurveyPROwirelesstoolsandsofware,whichareusedforbuildingandsecuringwirelessnetworks.Thissurveyencompassessitesurveying,RFspectrumanalysissurveyingandrealtmeactvesitesurveyingtechniques.Thisdocumentincludessitesurveyspecifcinformaton,AccessPointconfguratonandinstallatondatasheets,andRFcoveragepaternmaps.Awirelesssurveywasperformedatthecustomersite.Thepurposeofthesurveyistodeterminethenumberandplacementofwirelessaccesspointsnecessarytoprovideubiquitouscoveragefortheentrebuilding.SurveyFloorPlanTheimagebelowdetailstheareathatwassurveyed.Itincludesthefoorplanandthedimensionsofthebuilding.ItcanbeusefultoreferbacktothisviewfromsomeoftheothergraphstohelporientXYThisimagedisplaysthepathtakenduringthesurveyprocess.Thereddotsindicatepointsthatwereclickedduringthesurvey,whereastheblueonesrepresentsamplingpointstakenbytheapplicatonInsomeinstances,thisdocumentcontainstextdescriptonsofuniquecharacteristcsofthesitessurveyed.ThesedescriptonsgivecontexttotheAccessPoint(AP)confguratondatasheetsandcoveragemapsbyoferingsuggestonsforenhancingcoverageoftheRFnetworkasfaciliteschangeovertme.InadditontotextualdescriptonsandRFcoveragemaps(overlaidonfacilityblueprints)areprovided.TheAccessPointconfguratondatasheetsincludeAccessPointplacementandconfguratondetailssuchaslocaton,transmitpower,RFchannel,antennaplacement,andspecialAccessPointandantennamountngprocedures.TheRFcoveragemapsincludethe2DspatalcoveragepaternfortheAccessPoints,anindicatonoftheAccessPointlocatons,theRFchannelconfguratonfortheAccessPointswithinthefacility.Thestatedobjectveofthissurveyistoperformaspot-checkoftheexistngdeploymentinordertoestablishthatthecurrentwirelessinfrastructuremeetstheneedsoftheuserspresent.TherequirementsagainstwhichtheseresultswillbecomparedarestatedintheWLANDeploymentRequirementssectondetailedlaterinthisreport.Multplesurveyswereperformedtoallowfnerdetailandcomprehensivedatagathering.TheprocessusedtodeterminetheexistngRFdatacoverageinthefacilityisoutlinedbelow:level,signal-to-noiserato,SSIDandMACaddresses)ActveSurveyswereconductedthroughoutthefacility.ThiswasdonetotestperformanceandtheroamingandconnectvityabilityoftheWi-FiNetwork.WLANDeploymentThissectondocumentstheuser'sstatedrequirementsforsatsfactorywirelessserviceintheregionbeingsurveyed.Notethatthesevaluescandiferfromsitetosite.802.11nDeploymentSignal-67MultipleAPSignalNumberofAPsrequiredtoprovide2-67Channel-75-85MeasuredPHYDataRateUplinkMinimumAPPHYDataRate5.5MeasuredPHYDataRateDownlinkMinimumAPPHYDataRate54PredictivePHYDataRateDownlinkMinimumAPPHYDataRate54SignalNoiseRatio25Noise-90UserWithLoadOperating802.11nChannel40MHzChannel20MHzLegacyChannel802.11nHighestMCSMinimumTxMCSindexCurrentAPPlacementandThefoorplanbelowshowsthelocatonsofthecurrentlyinstalledAPsordesiredifthisisanewdeployment.ThespecifcdetailsforeachAParedescribedinthesectonlabeled"APDetailBreakdown"NoteOnlytheAP'sthatwereplacedonthefoorplanpriortorunningthereportwillbeshownonthefoorplanimage.APPlacementAPDetail MAC地 信 NonACL,Neighborings, 802.11gn-2.4 MAC地 信 总计 APSignalStrength00CurrentDeploymentSiteAccessPointCoverageTheimagebelowshowstheareascoveredbytheaccesspoints(indBm).ThecolorshownrepresentstheAPwiththestrongestsignalinanygivenarea.ThismapwillgiveyouavisualrepresentatonoftheWi-FicoverageareafortheAP¡¯s.OverallSignalTheimagebelowdisplaysthesignalcoverage(indBm)ateachpointinthemaplayout.Asageneralrule,regionswithsignallevelsbelow-67dBmprovideinsufcientcoverageforstandarduse(thisvaluemayvarydependingonuserrequirements,servicelevelagreements,applicatonsused,numberofusersserviced,etc.).APsaredisplayedintheirdetectedlocatons(andrefecttheexistngpowerandantennapropertes).Note:AnactveWi-FiareacanincorporateavarietyofenvironmentalfactorsthatcanvarythroughoutthedayandmayadverselyafectRFcoverage.Note:OnlytheAP'sthatwereplacedonthefoorplanpriortorunningthereportwillbeshownonthefoorplanimageChannelTheimagebelowdisplaystheinterferencelevel(inpercentage)ateachpointonthemaplayout.APsaredisplayedintheirdetectedlocatonsandrefecttheexistngpowerandantennapropertes.NotethattheinterferencelevelspresentintheenvironmentcanvarydependingonseveralsuchasthenumberofAPsonasinglechannel,numberofdevicespresent,non-802.11interferers,etc.Note:OnlytheAP'sthatwereplacedonthefoorplanpriortorunningthereportwillbeshownonthefoorplanimage.PredictvePHYDataRateTheimagebelowdisplaysthepredictvePHYdatarateconnectondownlinkateachpointinthemapend-userclient.WhendoingaPassivesurveytheabilitytoseetheactualDatarateisnotavailable.InordertoprovideDataRateswhiledoingaPassivesurveyweuseSignalStrengthtoDataRatemappingtable.WetakethedetectedsignalstrengthandmapittoaknownDataRate.AlowDataRateconnectondirectlytranslatestolowerthroughputandperformanceforanend-user.ConsistentlylowconnectonRatesareindicatveofinsufcientsignalcoverage,interference,noise,ormiss-confguredwirelessdevices.OperatngThecolorshownrepresentstheoperatngmodeoftheAPwiththestrongestsignalinanygivenarea.Likethepresent80211gnetworksthatarebackwardcompatbletothe80211bnetworks,thenew802.11nnetworkswillandmustbebackward-compatblewithstatonsthatarebuiltuponthelegacysmoothlyinamixedWLANenvironmenttotheextentthattheycansupportbothlegacy802.11a/b/gtransmissionsover20-MHzchannelsandhigh-throughputtransmissionsover40-MHzchannels.ChannelTheimagebelowdisplaysthebreakdownofthedetectedchannelThecolorshownrepresentstheChannelWidthoftheAPwiththestrongestsignalinanygivenMaxMCS(APMaxMCS(APTheimagebelowdisplaystheAP'sdetectedMCSReceiveDeploymentValidatonAgainstThissectoncomparesthedatagatheredduringthesurveyprocessagainsttherequirementsprovidedbytheusertoprovideacomprehensiveviewofwhichportonsofthenetwork(ifany)don'tmeettheneedsoftheenvironmentThefollowingsectonsprovideabreakdownofeachrequirementanddisplaysapass/failratngbasedonhowwellthecollectedresultsstandupagainsttheobjectves.SignalTheSignalCoveragerequirementallowstheusertospecifythatcertainregionsofthedeploymentmusthavesufcientcoveragetoprovideadequateservice.AreasofthemapthatmeetthecurrentrequirementsforSignalcoveragearelabeledinlightgreen().Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.52.10%ofthesurveyedareameetstheMinimumMinimumof-67RedundantAPTheRedundantAPCoveragerequirementallowstheusertospecifythatcertainregionsoftheAreasofthemapthatmeetthecurrentrequirementsforAPcoveragearelabeledinlightgreen()Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.Thisrequirementcontainstwoconfgurablethresholds:theusermustspecifytheminimumnumberofAPsrequiredforthesiteaswellastheminimumsignallevelthatisconsideredacceptablefortheAPstowarrantconsideraton.Ifeitheroneofthesetwothresholdsisnotmet,theareaisconsidered多重AP信号覆盖率.00%ofthesurveyedareameetstheMinimum2providecoverage-67ChannelAreasofthemapthatmeetthecurrentrequirementforSupportedSpeedarelabeledinlightgreen().AreasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimageLetthemousehoveroveranyareaofthemaptoshowadditonaldetailsImportantNote:AirMagnetSurveymeasuresinterferencefromthepointofviewofapartcularAP.ThusforagivenAP,AirMagnetshowsacumulatveviewofallthevariousWi-FisourcesthatareinterferingwiththatoneAP.Asaresult,usersshoulddeselectallAPsthatarenotthefocusofinvestgaton(usingthedevicetreetothelefontheDisplaypage).Thesignalsfromde-selecteddevicesarestllconsideredwhendetermininginterferencetootherAPs.100.00%ofthesurveyedareameetstheMinimumstrengthisweakerthan-75strengthisweakerthan-85PHYDataAreasofthefoorplanthatmeetthecurrentrequirementforMinUplinkDataRateSupportedarelabeledinlightgreen().Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarontheright-handsideofthescreen.ThisscaleisshownintermsofMbps.PredictveAreasofthefoorplanthatmeetthecurrentrequirementforMinDownlinkDataRateSupportedarelabeledinlightgreen().Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.ThisscaleisshownintermsofMbps.77.20%ofthesurveyedareameetstheMinimumMinimumAPPHYDataRateMinimumof54AreasthatmeetthecurrentRFcoveragerequirementareshowninlightgreen().Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.Theweakestsignalsareshowninred.42.40%ofthesurveyedareameetstheMinimum25NoiseAreasofthemapthatmeetthecurrentrequirementfornoisearelabeledinlightgreen().Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.NoiselevelsaredisplayedindBmwithareasofhighestnoiseshowninred.40.10%ofthesurveyedareameetstheMinimum-90UserTheUserCapacityrequirementallowsuserstospecifythenumberofusersexpectedtobepresentinselectedregionsofthemap.IfthesurveyrevealsthattherearenotenoughAPspresenttoservicetheusersinthearea,thatregionwillbedisplayedinredontheheatmapbelow.WithLoadOperatngThisrequirementistriggeredbyany802.11nnetworksthatfalloutsideoftheselectedthresholdsetngs.ForexampleiftheWirelessnetworkbeingsurveyedisdesignedtoprovide"GreenfeldOperatngMode"only.(40MHzHT)TheThresholdsetngwouldbesetto"Allowed"fortheGreenfeldOperatngModeandNotAllowedfortheremainingthresholds.Theheatmapshowsalightgreen()colorforpassingandred()forfailing.Thisrequirementisapassorfailbasedthreshold..00%ofthesurveyedareameetstheMinimumChannelThissectonofthechannelwidthrequirementswillshowtheactualdetectedchannelusagesdetected.Theheatmapwillshowtheareasthatwillbethecauseofthepassorfailureoftherequirementsspecifedforthechannelwidth.00%ofthesurveyedareameetstheMinimum40MHzChannel20MHzLegacyChan