5G无线通信基础英文 A Brief Introduction About 5G Network

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Jia

Abstract

Withtherapiddevelopmentofwirelesstechnologies,theconceptoftheFifthGeneration(5G)wirelesscommunicationsystemstartedtoemerge.Butmostpeopleknowlittleabout5G，includingsomeaspectsof5Gwirelesscommunicationnetworks,justlikewhat5Gisabout:whatarethebuildingblocksofcore5Gsystemconcept,whatarethemainchallengesandhowtotacklethem.Besides,Anumberofcountriesandorganizationsworkingon5G,5GdevelopmentsituationinChinaisofconcerntoeveryone,Chinaalsoneedstohaveitsownplaceinsuchacompetitiveenvironment.

Keywords:

5GNetwork,history,Coreconcept,Challenges,Solutions,Inchina

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TableofContent

1.Introduction-3-2.Researchanddevelopmenthistory-3-3.CoreConcept-4-4.ChallengesandSolutions-5-4.15GTransportChallenge-6-4.25GTransportChallengeandsomeSolutions-7-4.3MachinetoMachineCommunication-7-4.3CoreNetworkVirtualisation-8-4.4Summary-8-5.5GInChina-9-5.5.1Whitepaper-9-5.5.25Gstandards-9-5.5.3Chinacommunicationscompanies-9-5.5.4Summary-10-6.Conlusion-10-7.Acronyms-11-8.References-11-

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1.Introduction

5G(Fifth-generationmobilecommunications)isanewgenerationofmobilecommunicationmobilecommunicationsystemsfor2023,withhighspectralefficiencyandlowpowerconsumption,intermsoftransferrateandresourceutilizationimprovementover4Gsystem10times,itswirelesscoverageperformanceanduserexperiencewillbesignificantlyimproved.5Gwillbecloselyintegratedwithotherwirelessmobilecommunicationtechnology,constituteanewgenerationofubiquitousmobileinformationnetwork,tomeetfuturemobileInternettraffic1000xdevelopmentneedsin10years.[1]

InthispaperIwillshowyousomelatestresearchanddevelopmenthistory,whatarethebuildingblocksofcore5Gsystemconcept,whatarethemainchallengesandhowtotacklethemfirstly.IntherestofpaperIwillshowhow5GdevelopmentinChinainrecentyearsandmyconclusionafterresearchliterature.

2.Researchanddevelopmenthistory

February2023,theEUannouncedthatitwouldgrant50millioneurostoacceleratethedevelopmentof5Gmobiletechnology,planstolaunchamaturestandardin2023.[2][3]

May13,2023,SouthKorea'sSamsungElectronicsCo.,Ltd.announcedthatithassuccessfullydevelopedthe5thgenerationmobilecommunication(5G)coretechnology,whichisexpectedtobeginin2023tocommercialization.Thetechnologycantransmitdataatultra-highfrequency28GHzto1Gbpspersecondspeed,andthemaximumtransmissiondistanceofupto2km.Incontrast,thecurrentfourthgenerationLongTermEvolution(4GLTE)andservicesofonlythetransmissionrate75Mbps.Priortothetransmissionbottleneckiswidelybelievedthatatechnicalproblem,whileSamsungElectronicsistheuseof64adaptivearrayantennaelementstransmissiontechnologytocrackthisproblem.Comparedwiththetransmissionspeedof4GtechnologyinSouthKorea,5Gtechnologyishundredsoftimesfaster.Usingthistechnique,downloadahigh-definition(HD)moviejustneed10seconds.

Backin2023,Huaweihaslaunchedtheearlyresearchrelatedtechnologies,andtoshowtheprototypeofthe5Gbaseinlateryears.InNovember6,2023,Huaweiannouncedthatitwouldinvest$600millionin2023forthe5Gtechnologydevelopmentandinnovation,andpredictedthatuserswillenjoy20Gbpscommercial5Gmobilenetworksin2023.

May8,2023,theJapanesetelecomoperatorNTTDoCoMoannouncedofficially,Ericsson,Nokia,Samsungandothersixmanufacturerstoworktogether,begantestingoverride1000timesthanexisting4Gnetworksthecarryingcapacityofthehigh-speednetwork5Gnetwork,thetransmissionspeedisexpectedto10Gbps.Outdoortestingscheduledtocommencein2023,andexpectstobeginoperationsin2023.[3]

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March1,2023,theBritish\DailyMail\reportedthattheBritish5Gnetworkhassuccessfullydevelopedandtestedfordatatransmissionwithin100metersperseconddatatransferofupto125GB,is6.5timesthe4Gnetwork,intheory,a30secondstodownloadmovies,addingthatinvestmentinpublictestin2023,2023officiallyputintocommercialuse.[4]

February11,2023intheafternoonnews,IMT-2023(5G)topromotethegroup(hereinafterreferredtoas\whitepaper.WhitePaperfromthemobileInternetandnetworkingcomposedmainlyofapplicationscenarios,businessneedsandchallengesofstartingsummedcontinuouswideareacoverage,highreliabilityofthefourmajortechnology5Gsceneofhighcapacity,lowpowerconsumptionandlowlatencyconnection.Meanwhile,thecombinationofcoretechnologiesandkeycapabilities5Gand5Gconceptproposedbythe\sexualityindex+asetofkeytechnologies\

March3,2023,theEuropeanEconomicandSocialCommissionforDigitalFurusawaOttingeofficiallyannouncedtheEU'svisionofpublic-privatepartnerships5G,andstrivetoensurethattherighttospeakinthenextgenerationofmobiletechnologyinEuropeintheglobalstandard.Ottingersaidthat,5Gvisionofpublic-privatepartnershipinvolvesnotonlyfiber,wirelessorsatellitecommunicationsnetworkintegratedwitheachother,willalsousethesoftware-definednetworking(SDN),networkfunctionsvirtualization(NFV),MobileEdgecomputing(MEC)andFogComputingtechnology.Inthespectrum,theEU'svisionofpublic-privatepartnershipwillbedesignated5Ghundredsofmegahertztoimprovenetworkperformance,60GHzandhigherfrequencybandswillalsobetakenintoaccount.

Anumberofcountriesandorganizationsannounced,5Gnetworkwillbeoperationalbetween2023~2025.

3.CoreConcept

Whatis5G?Ibelievemanypeoplewillbesoquestionablewhensee5G.Judgingfromthewordmeaning,5Greferstothefifthgenerationofmobilecommunications.However,howshoulditdefine?Currently,theglobalindustryfor5Gconceptnotyetagreed.ChinaIMT-2023(5G)groupreleasedtheWhitePaperconsiderstheconcept5G,5Gintegratedkeycapabilitiesandcoretechnology,5Gconceptby\keytechnologies%userexperience\isasetofkeytechnologies,includinglarge-scaleantennaarray,ultra-densenetworking,newmulti-site,full-spectrumaccessandnewnetworkarchitectures.

Recallingthecourseofdevelopmentofmobilecommunications,eachgenerationof

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mobilecommunicationsystemscanbedefinedbysexualperformanceindicatorsandsignsofkeytechnologies.Wherein,1GusingFDMA,onlyanalogvoiceservices;2GmainlyusingTDMA,canprovidevoiceandlow-speeddigitaldataservices;3GtoCDMAtechnologyischaracterizedbyuserpeakrateof2MbpstoreachtensofMbps,supportmultimediadataservices;4GOFDMAtechnologyasthecore,theuserpeakrateofupto100Mbps~1Gbps,cansupportavarietyofmobilebroadbanddataservices.

5Gkeycompetenciesricherthanpreviousgenerationsofmobilecommunications,userexperience,speed,densityofconnections,endtoenddelay,thepeakrateandmobilityandsowillbethe5Gkeyperformanceindicators.However,unlikethecaseinthepastonlytoemphasizedifferentpeakrate,theindustrygenerallybelievethattherateoftheuserexperienceisthemostimportantperformanceindicators,ittrulyreflectstherealdatarateavailabletotheuser,andtheuserexperienceistheclosestperformance.Basedonthetechnologyneedsofthemainscene5G,5GuserexperiencerateshouldreachGbpsmagnitude.

Facedwithdiversescenesofextremeperformancedemandsdifferentiation,5Gcannothavesolutionsforallscenarios.Inaddition,thecur