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1、ericssonWhitepaper28423-3165Uen
2、February2012HeterogeneousnetworksmeetingmobilebroadbandexpectationswithmaximumefficiencyAstheNetworkedSocietytakesshape,providingtherightuserexperienceisatoppriorityforoperators.Bandwidth-hungryapplicationscommononsmartphones,tabletsandotherconnecteddevic
3、esaredrivingfiguresfordatatrafficskyhigh.Theopportunityforoperatorsarisesfrompeople,businessandsocietydependingontheirdevices,mobilebroadbandaccessandhigh-performancenetworks.Heterogeneousnetworks,commonlyknownashetnets,andeffortstoimproveanddensifyexistingmobilebroadbandinfrastructuret
4、ogetherwithaddedsmallcellsareimportantwhenmeetingever-increasinguserexpectations.INTRODUCTIONMobilebroadbandtrafficisgrowingrapidly,drivenbytheincreasingpopularityofconnecteddevices,suchassmartphonesandtablets.Userexpectationsformobilebroadbandareontheriseaspeoplerelymoreandmoreonmobile
5、applications,videocontent,cloud-basedservicesandstayingconnectedanywhere,anytime.consumershavecometoexpectaconsistent,high-qualityandseamlessmobilebroadbandexperiencewherevertheyare.MeetingtheseexpectationsisakeypriorityforoperatorslookingtodifferentiatethemselvesintheNetworkedSociety,i
6、nwhicheverythingthatcanbenefitfromaconnectionwillbeconnected.Toprovidetherightmobilebroadbandexperience,networksneedsufficientcapacityandcoveragetodeliverhighdatathroughputwithverylowlatency.Oneapproachistodeployaheterogeneousnetwork,commonlyreferredtoasahetnet.Topreparenetworksforsurgi
7、ngtrafficdemand,operatorsshouldimproveanddensifytheirexistingmobilebroadbandnetworksandaddsmallcellsinanoptimalway.How,whenandwhereoperatorsmigratetoheterogeneousnetworkswillbedictatedbytheirmobilebroadbandservicesandtheirexistingnetworks,aswellasbroadermarket,technicalandeconomicconsid
8、erations.Onesizedoesnotfitall,andflexibilityisneededtoensurethatcustomerexpectationsaremetinthemostcost-effective,spectrum-efficientandfuture-proofway.Heterogeneousnetworks•IntroductIon2THEMOBILEBROADBANDCHALLENGEGlobalsmartphoneuptakecontinuestoshowstrongmomentum.Aboutone-thir
