ExecutveExecutveSurveyFloorPlan2IntroductonPre-Install/Post-InstallSurvey-Checkup3MethodologyWLANDeployment802.11nDeploymentRequirements5CurrentAPPlacementandConfguratonAPPlacementAPDetailCurrentDeploymentSiteAccessPointCoverageOverallSignalChannelPredictvePHYDataRateOperatngChannelMaxMCS(APMaxMCS(APDeploymentValidatonAgainstSignalRedundantAPChannelPHYDataPredictveSignal/NoiseNoiseUserOperatngChannelHighestMCS8Conclusions 1ExecutveThis1ExecutveThiswirelesssitesurveyandRFanalysiswereperformedinordertogainanin-depthunderstandingpresentRFinterferencesourcesandtomeetoverallwirelesscoveragerequirements.Theprimarygoalandsubsequentobjectvesweredesignedwithcoverage,desiredthroughputandusabilityasprimarydrivingrequirementsfromthebusinessgroup.ThissurveywascreatedusinganindustrystandardsetofAirMagnetSurveyPROwirelesstoolsandsofware,whichareusedforbuildingandsecuringwirelessnetworks.Thissurveyencompassessitesurveying,RFspectrumanalysissurveyingandrealtmeactvesitesurveyingtechniques.Thisdocumentincludessitesurveyspecifcinformaton,AccessPointconfguratonandinstallatondatasheets,andRFcoveragepaternmaps.Awirelesssurveywasperformedatthecustomersite.Thepurposeofthesurveyistodeterminethenumberandplacementofwirelessaccesspointsnecessarytoprovideubiquitouscoveragefortheentre1.1SurveyPage3of1.1.1FloorPlan1.1.1FloorPlanTheimagebelowdetailstheareathatwassurveyed.Itincludesthefoorplanandthedimensionsthebuilding.ItcanbeusefultoreferbacktothisviewfromsomeoftheothergraphstohelporientPage4ofPage5ofX120.00Page5ofX120.00Y120.001.1.2SurveyThis1.1.2SurveyThisimagedisplaysthepathtakenduringthesurveyprocess.Thereddotsindicatepointsthatclickedduringthesurvey,whereastheblueonesrepresentsamplingpointstakenbytheapplicatonPage6of2Insomeinstances,2Insomeinstances,thisdocumentcontainstextdescriptonsofuniquecharacteristcsofthesurveyed.ThesedescriptonsgivecontexttotheAccessPoint(AP)confguratondatasheetsandcoveragemapsbyoferingsuggestonsforenhancingcoverageoftheRFnetworkasfaciliteschangeovertme.InadditontotextualdescriptonsandRFcoveragemaps(overlaidonfacilityblueprints)areprovided.TheAccessPointconfguratondatasheetsincludeAccessPointplacementandconfguratondetailssuchaslocaton,transmitpower,RFchannel,antennaplacement,andspecialAccessPointandantennamountngprocedures.TheRFcoveragemapsincludethe2DspatalcoveragepaternfortheAccessPoints,anindicatonoftheAccessPointlocatons,theRFchannelconfguratonfortheAccessPointswithinthe2.12.1.1Pre-Install/Post-InstallSurvey-Thestatedobjectveofthissurveyistoperformaspot-checkoftheexistngdeploymentinorderestablishthatthecurrentwirelessinfrastructuremeetstheneedsoftheuserspresent.TherequirementsagainstwhichtheseresultswillbecomparedarestatedintheWLANDeploymentRequirementssectondetailedlaterinthisreport.Page7of3Multplesurveyswere3Multplesurveyswereperformedtoallowfnerdetailandcomprehensivedatagathering.TheusedtodeterminetheexistngRFdatacoverageinthefacilityisoutlinedPassivesurveyswereconductedthroughoutthefacilitytogatherRFdata(signalstrength,noiselevel,signal-to-noiserato,SSIDandMACaddresses)ActveSurveyswereconductedthroughoutthefacility.ThiswasdonetotestperformancetheroamingandconnectvityabilityoftheWi-FiPage8of4WLANDeploymentThissectondocumentstheuser'sstatedrequirementsforsatsfactorywirelessserviceinthebeingsurveyed.Notethatthesevaluescandiferfromsiteto4.1802.11nDeploymentPage9ofSignalMinimumAPsignalstrength4WLANDeploymentThissectondocumentstheuser'sstatedrequirementsforsatsfactorywirelessserviceinthebeingsurveyed.Notethatthesevaluescandiferfromsiteto4.1802.11nDeploymentPage9ofSignalMinimumAPsignalstrength-67MultipleAPSignalNumberofAPsrequiredtoprovide2MinimumAPsignalstrengthrequiredtoprovide-67ChannelInterferedAPs:ExcludeAPsifsignalstrengthisweaker-75InterferingAPs:ExcludeAPsifsignalstrengthisweaker-85MeasuredPHYDataRateUplinkMinimumAPPHYDataRate5.5MeasuredPHYDataRateDownlinkMinimumAPPHYDataRate54PredictivePHYDataRateDownlinkMinimumAPPHYDataRate54SignalNoiseRatioMinimumSignalNoiseRatio25NoiseMaximumNoiseLevel-90UserMaximumUsersSupportedperWithLoadOperatingGreenfieldOperatingMixedOperatingNotLegacyOperatingNot802.11nChannel40MHzChannel20HTMHzChannelNot20MHzLegacyChannelNot802.11nHighestMCSMinimumTxMCSindex5CurrentAPPlacementandThefoorplanbelowshowsthelocatons5CurrentAPPlacementandThefoorplanbelowshowsthelocatonsofthecurrentlyinstalledAPsordesiredifthisisadeployment.ThespecifcdetailsforeachAParedescribedinthesectonlabeled"APDetailBreakdown".Note:OnlytheAP'sthatwereplacedonthefoorplanpriortorunningthereportwillbeshownonthefoorplan5.1APPlacement5.2APDetailAP(存取點(diǎn)AP名最大信MAC地功率NonACL,Neighborings,myap1(PassiveSurvey1-f3-1)802.11gn-2.47Page10ofAP(存取點(diǎn)AP名最大信MAC地功率NonACL,Neighborings,Roguesmyap1(PassiveSurvey1-f3-2)802.11an-5.0myap1(PassiveSurvey1-f3-3)802.11an-5.0AP(存取點(diǎn)AP名最大信MAC地功率NonACL,Neighborings,Roguesmyap1(PassiveSurvey1-f3-2)802.11an-5.0myap1(PassiveSurvey1-f3-3)802.11an-5.077AP數(shù)量6總計(jì)6APSignalStrengthmyap1(PassiveSurvey1-f3-myap1(PassiveSurvey1-f3-myap1(PassiveSurvey1-f3-myap1(PassiveSurvey1-f3-myap1(PassiveSurvey1-f3-myap1(PassiveSurvey1-f3of06CurrentDeploymentSite6CurrentDeploymentSite6.1AccessPointCoverageTheimagebelowshowstheareascoveredbytheaccesspoints(indBm).ThecolorshownrepresentstheAPwiththestrongestsignalinanygivenarea.ThismapwillgiveyouavisualrepresentatonofWi-FicoverageareaforthePage12of6.2OverallSignal6.2OverallSignalTheimagebelowdisplaysthesignalcoverage(indBm)ateachpointinthemaplayout.Asarule,regionswithsignallevelsbelow-67dBmprovideinsufcientcoverageforstandarduse(thisvaluemayvarydependingonuserrequirements,servicelevelagreements,applicatonsused,numberofusersserviced,etc.).APsaredisplayedintheirdetectedlocatons(andrefecttheexistngpowerandantennapropertes).Note:AnactveWi-FiareacanincorporateavarietyofenvironmentalfactorsthatcanvarythroughoutthedayandmayadverselyafectRFcoverage.Note:OnlytheAP'sthatwereplacedonthefoorplanpriortorunningthereportwillbeshownonfoorplanPage13ofPage14ofPage14ofPage15ofPage15ofPage16ofPage16of6.3Channel6.3ChannelTheimagebelowdisplaystheinterferencelevel(inpercentage)ateachpointonthemapAPsaredisplayedintheirdetectedlocatonsandrefecttheexistngpowerandantennapropertes.Notethattheinterferencelevelspresentintheenvironmentcanvarydependingonseveralfactors,suchasthenumberofAPsonasinglechannel,numberofdevicespresent,non-802.11interferers,etc.Note:OnlytheAP'sthatwereplacedonthefoorplanpriortorunningthereportwillbeshownonthefoorplanimage.Page17of6.4PredictvePHY6.4PredictvePHYDataRateTheimagebelowdisplaysthepredictvePHYdatarateconnectondownlinkateachpointintheConnectonRatesprovidesadirectinsightintohowwellthenetworkwillsupportareal-end-userclient.WhendoingaPassivesurveytheabilitytoseetheactualDatarateisnotavailable.InordertoprovideDataRateswhiledoingaPassivesurveyweuseSignalStrengthtoDataRatemappingtable.WetakethedetectedsignalstrengthandmapittoaknownDataRate.AlowDataRateconnectondirectlytranslatestolowerthroughputandperformanceforanend-user.ConsistentlylowconnectonRatesareindicatveofinsufcientsignalcoverage,interference,noise,ormiss-confguredwirelessPage18of6.5Operatng6.5OperatngTheimagebelowdisplaysthebreakdownoftheoperatngThecolorshownrepresentstheoperatngmodeoftheAPwiththestrongestsignalinanygivenarea.Likethepresent802.11gnetworksthatarebackward-compatbletothe802.11bnetworks,thenew802.11nnetworkswillandmustbebackward-compatblewithstatonsthatarebuiltuponthelegacy802.11a/b/gstandards.Towardsthatend,802.11nwirelessaccesspointsmustbeabletointeroperatesmoothlyinamixedWLANenvironmenttotheextentthattheycansupportbothlegacy802.11a/b/gtransmissionsover20-MHzchannelsandhigh-throughputtransmissionsover40-MHzchannels.Page19of6.6Channel6.6ChannelTheimagebelowdisplaysthebreakdownofthedetectedchannelThecolorshownrepresentstheChannelWidthoftheAPwiththestrongestsignalinanygivenPage20of6.7MaxMCS(AP6.7MaxMCS(APTheimagebelowdisplaystheAP'sdetectedMCSTransmissionThisheatmaprefectstheAPMCSTransmitmodethatwasPage21of6.8MaxMCS(AP6.8MaxMCS(APTheimagebelowdisplaystheAP'sdetectedMCSReceivePage22of7DeploymentValidaton7DeploymentValidatonAgainstThissectoncomparesthedatagatheredduringthesurveyprocessagainsttherequirementsprovidedtheusertoprovideacomprehensiveviewofwhichportonsofthenetwork(ifany)don'tmeettheoftheenvironment.Thefollowingsectonsprovideabreakdownofeachrequirementanddisplaysapass/failratngbasedonhowwellthecollectedresultsstandupagainsttheobjectves.Page23of7.1SignalTheSignalCoveragerequirementallowstheusertospecifythatcertainregionsofthedeploymentmusthavesufcientcoveragetoprovideadequateservice.Areasofthemapthatmeetthecurrent7.1SignalTheSignalCoveragerequirementallowstheusertospecifythatcertainregionsofthedeploymentmusthavesufcientcoveragetoprovideadequateservice.AreasofthemapthatmeetthecurrentrequirementsforSignalcoveragearelabeledinlightgreen().AreasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowthePage24of100.00%ofthesurveyedareameetstheMinimumSignalMinimumof-67Page25ofPage25of7.1.1RedundantAPTheRedundantAP7.1.1RedundantAPTheRedundantAPCoveragerequirementallowstheusertospecifythatcertainregionsofdeploymentmusthavecoveragefrommorethanoneAPinordertobeconsideredadequateservice.AreasofthemapthatmeetthecurrentrequirementsforAPcoveragearelabeledinlightgreen().Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.Thisrequirementcontainstwoconfgurablethresholds:theusermustspecifytheminimumnumberofAPsrequiredforthesiteaswellastheminimumsignallevelthatisconsideredacceptablefortheAPstowarrantconsideraton.Ifeitheroneofthesetwothresholdsisnotmet,theareaisconsiderednonof多重AP信號(hào)覆蓋率100.00%ofthesurveyedareameetstheMinimumNumberofAPsrequiredtoprovide2MinimumAPsignalstrengthrequiredtoprovidecoverage-677.2ChannelAreasofthemapthatmeetthe7.2ChannelAreasofthemapthatmeetthecurrentrequirementforSupportedSpeedarelabeledinlightgreen(Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.Letthemousehoveroveranyareaofthemaptoshowadditonaldetails.ImportantNote:AirMagnetSurveymeasuresinterferencefromthepointofviewofapartcularAP.ThusforagivenAP,AirMagnetshowsacumulatveviewofallthevariousWi-FisourcesthatareinterferingwiththatoneAP.Asaresult,usersshoulddeselectallAPsthatarenotthefocusofinvestgaton(usingthedevicetreetothefontheDisplaypage).Thesignalsfromde-selecteddevicesarestllconsideredwhendetermininginterferencetootherPage27of5.00%ofthesurveyedareameetstheMinimumInterferedAPs:ExcludeAPsifsignalstrengthisweakerthan-75InterferingAPs:ExcludeAPsifsignalstrengthisweakerthan-857.3PHYData7.3PHYDataAreasofthefoorplanthatmeetthecurrentrequirementforMinUplinkDataRateSupportedlabeledinlightgreen().Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarontheright-handsideofthescreen.ThisscaleisshownintermsofMbps.Page28of7.3.1PredictveAreasofthefoorplanthatmeetthe7.3.1PredictveAreasofthefoorplanthatmeetthecurrentrequirementforMinDownlinkDataRateSupportedlabeledinlightgreen().Areasthatdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.ThisscaleisshownintermsofMbps.Page29of100.00%ofthesurveyedareameetstheMinimumMinimumAPPHYDataRateMinimumof547.4Signal/NoiseAreasthatmeet7.4Signal/NoiseAreasthatmeetthecurrentRFcoveragerequirementareshowninlightgreen().Areasthatdomeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.Theweakestsignalsareshowninred.Page30of100.00%ofthesurveyedareameetstheMinimumMinimumSignalNoiseRatio257.5NoiseAreasofthe7.5NoiseAreasofthemapthatmeetthecurrentrequirementfornoisearelabeledinlightgreen().Areasdonotmeettherequirementaredisplayedaccordingtothecolorcodeonthesliderbarbelowtheimage.NoiselevelsaredisplayedindBmwithareasofhighestnoiseshowninred.Page31of100.00%ofthesurveyedareameetstheMinimumMaximumNoiseLevel-907.6UserTheUserCapacityrequirement7.6UserTheUserCapacityrequirementallowsuserstospecifythenumberofusersexpectedtobepresentselectedregionsofthemap.IfthesurveyrevealsthattherearenotenoughAPspresenttoservicetheusersinthearea,thatregionwillbedisplayedinredontheheatmapbelow.Page32ofMaximumUsersSupportedperWithLoad7.7OperatngThisrequirementistriggeredbyany802.11nnetworksthatfalloutsideoftheselectedthresholdsetngs.ForexampleiftheWirelessnetworkbeingsurveyedisdesignedtoprovide"GreenfeldOperatngMode"only.(40MHzHT)TheThresholdsetngwouldbesetto"Allowed"fortheGreenfeldOperatngModeandNot7.7OperatngThisrequirementistriggeredbyany802.11nnetworksthatfalloutsideoftheselectedthresholdsetngs.ForexampleiftheWirelessnetworkbeingsurveyedisdesignedtoprovide"GreenfeldOperatngMode"only.(40MHzHT)TheThresholdsetngwouldbesetto"Allowed"fortheGreenfeldOperatngModeandNotAllowedfortheremainingthresholds.Theheatmapshowsalightgreen(colorforpassingandred()forfailing.Thisrequirementisapassorfailbased7.7.1Page33of.00%ofthesurveyedareameetstheMinimumGreenfieldOperatingMixedOperatingNotLegacyOperatingNotPage34ofPage34of7.8ChannelThissectonofthechannelwidthrequirementswillshowtheactualdetectedchannelusagesdetected.Theheatmapwillshowtheareasthatwillbethecauseofthepassorfailureoftherequirementsspecifedforthechannel7.8ChannelThissectonofthechannelwidthrequirementswillshowtheactualdetectedchannelusagesdetected.Theheatmapwillshowtheareasthatwillbethecauseofthepassorfailureoftherequirementsspecifedforthechannel7.8.1Page35of.00%ofthesurveyedareameetstheMinimum40MHzChannel20HTMHzChannelNot20MHzLegacyChannelNot7.9HighestMCSThisrequirem