IHS-从4G到5G：有哪些服务提供商？（英文版）-2017-19页

14Gto5G:whatserviceprovidersaresayingAftermorethantwodecadesofexistence,theworldwidemobileinfrastructurehardwaremarkethasreachedmaturityandfluctuatesbetween$31Band$48Bdependingonmacroeconomiccyclesandshiftsintechnologygenerations.2Gisdeclining,3Gisatthematuritystageofitslifecycle,LTEpeakedin2015,LTE-Advanced(LTE-A)isrampingupand5Gisaworkinprogress.24G:layingthegroundworkfor5G3We’rejustgettingintoa4Gworld—LTE-AandLTE-APro—and5Gisalreadyaroundthecorner.Pre-commercialfixed-wirelessaccess(FWA)servicesareexpectedinNorthAmericaassoonastheendof2017,withenhancedmobilebroadband(eMBB)anticipatedinAsiainthesecondhalfof2018.Toassessthesituation,weinterviewed21oftheworld’slargest4Gserviceproviderstotakestockofwheretheirnetworksare—andwherethey’reheading.KeyfindingsfromourrecentEvolutionfrom4Gto5Gsurve