5G的详细介绍及前景展望英文版

目录 工贸企业有限空间作业目录特种设备作业人员作业种类与目录特种设备作业人员目录1类医疗器械目录高值医用耗材参考目录 1423ThedevelopmentofmobilecommunicationtechnologyWhatis5G?Whydoweneed5G?Researchstatusandchallengesof5G.1ThedevelopmentofmobilecommunicationtechnologySimulationofmobilecommunicationsystemDigitalmobilecommunicationsystemmultimediamobilecommunicationssystemBroadbandaccessanddistributionnetworksystem19801G2G3G4G199020062011Thedevelopmentofmobilecommunicationtechnology2Whatis5G?AnEnglishabbrevi-ation01AnEnglishabbreviationconvergednetwork02UNEAgreenenergynetwork03Agreenenergynetwork5GistheEnglishabbreviationof“Thefifthgenerationmobilecommunicationtechnology”Comparedwith2G,3Gand4G,5Gisnotindependentandbrand-new.Itisacombinationandfurtherdevelopmentofpresentmobilecommunicationtechnology.Besidesthespeedupgrade,5Gwillalsomeettherequirementsoflargebandwidth,superhighcapacity,superdensesite,superhighreliabilityandwheneverandwhereverpossibleaccess.Somedetailsabout5G3Whydoweneed5G?Thenecessityof5GWhydoesthevisionof5Gemerge？Mobilecommunicationhasprofoundlychangedpeople'slife,butpeople'spursuitforhigherperformanceofmobilecommunicationhasneverstopped.Inordertocopewiththefutureofmobiledatatrafficexplosivegrowth,theconnectionofmassivedevice,thecontinuousemergenceofvariousnewservicesandapplicationsscene,thefifthgenerationmobilecommunication(5G)systemwillemergeastimesrequire.5Gwillmakeinformationbreakthroughthelimitationoftimeandspace,providingexcellentinteractiveexperienceandimme-rsiveinformationfeastfortheuser.Throughtheseamlessfusionway,5Gwillclosethedistanceofallthings,realizetheintelligentinterconnectionbetweenmanandallthingsonearth.5Gwillprovidetheaccessrateoffiberlike,theusingexperienceof“zerodelay”,theabilitytoconnectbillionsofdevices,superhighfluxdensity,superhighconnectionnumberdensity,superhighmobilityandothermultiscenefavorableserviceandintelligentoptimizationofbusinessanduserperception.Atthesametime,5Gwillbringthenetworkoverahundredtimestheenergyefficiencyandultrahundredtimesthebitcostreduction.Finally5Gwillrealizethegeneralhopeof“Gettheinformationwheneveryouwantandallthingsonearthareatyourfingertips”.4Researchstatusandchallengesof5G.?Tomeetthedemandof5G,breakthroughinairinterfacetechnologyisnecessary.Butinnovationinnetworkarchitectureisalsosignificantandnecessarysoastorealizethevisionof5G.CentralizedordistributednetworkarchitectureThedividinglineofaccessnetworkandthecorenetworkTorealizenetworkconstructionorfunctionconfigurationTheinfluenceofNFVandSDNIMT-2020(5G)architectureisevolutionorrevolutionPart1Fiveopeningproblemondesigning5GnetworkarchitecturePart02Integrationof5GandWi-FiAngeneralintroductionofIntegrationof5GandWi-FiTheintegrationnetworkof5GandWi-Ficanwellsolvetheproblemofrapidgrowingwirelesstrafficanduserexperiencepursuitin5G.Integrationofmulti-radioaccesstechnology,multipleneedsandmultipleinternetwerestudiedtobecometheinevitabletrendforIMT2020(5G).Inthenetworkingof5GandWi-Fi,integrationofnetworkapplicationsceneandfusionnetworkingtechnologywereintroducedtobetheinevitabledemand,no-senseauthentication,networksecurity,greencommunicationwereproposedtobecomethekeytechnicalindications.IntegrationofnetworkingtechnologyrouteIntegrateWi-Fiintomobilecommunicationnetworkasawirelesstechnologyunderthecircumstanceofintegrationofavarietyofcellularnetwork.Torealizethemultipleaccessmodeofcorenetworkwithothercellulartechnologykeytechnicalindicationsno-senseauthentication,networksecurity,greencommunicationwereproposedtobecomethekeytechnicalindications.Somechallenges?Toworkwellinamultiserviceenvironmentwithseamlesshandovertechnology?Interferencesuppressiontechnology?Automaticadaptationtechnology?Securityproblems.Seamlessdockingofsecureprotocolwhenintegrating5GandWi-Fi.Part03Securityvisionof5GThesecuritykeytechnologiesLargedatasecurityin5G1Securityproblemsbroughtbycloudization,virtualizationandSoftwareDefinedNetwork,SDN2Thesecurityofmobileintelligentterminal3ResearchersTHANKYOUVERYMUCH