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1、目录1423The development of mobile communication technology What is 5G?Why do we need 5G?Research status and challenges of 5G.5FiGWi1The development of mobile communication technology Simulation of mobile communication systemDigital mobile communication systemmultimedia mobile communications systemBroa
2、dband access and distribution network system19801G2G3G4G199020062011The development of mobile communication technology 2What is 5G?AnEnglishabbrevi-ation01 An English abbreviation convergednetwork02 UNEAgreenenergynetwork03 A green energy network5G is the English abbreviation of“The fifth generation
3、 mobile communication technology”Compared with 2G,3G and 4G,5G is not independent and brand-new.It is a combination and further development of present mobile communication technology.Besides the speed upgrade,5G will also meet the requirements of large bandwidth,super high capacity,super dense site,
4、super high reliability and whenever and wherever possible access.Some details about 5G3Why do we need 5G?The necessity of 5G Why does the vision of 5G emerge？Mobile communication has profoundly changed peoples life,but peoples pursuit for higher performance of mobile communication has never stopped.
5、In order to cope with the future of mobile data traffic explosive growth,the connection of massive device,the continuous emergence of various new services and applications scene,the fifth generation mobile communication(5G)system will emerge as times require.5Gwillpenetrateintoallareasofthesocietyin
6、thefuture,constructsanall-wavecustomer-focusinformationecologysystem.5G will make information breakthrough the limitation of timeand space,providing excellentinteractiveexperienceandimme-rsive information feast for theuser.Throughtheseamlessfusionway,5Gwillclosethedistanceofallthings,realizetheintel
7、ligentinterconnectionbetweenmanandallthingsonearth.5G will provide the access rate of fiber like,theusing experience of“zero delay”,the ability toconnectbillionsofdevices,superhighfluxdensity,super high connection number density,superhigh mobility and other multi scene favorableservice and intellige
8、nt optimization of businessanduserperception.Atthesametime,5Gwillbringthenetworkoverahundredtimestheenergyefficiencyandultrahundredtimesthebitcostreduction.Finally5Gwillrealizethegeneralhopeof“Gettheinformationwheneveryouwantandallthingsonearthareatyourfingertips”.4Research status and challenges of
9、5G.To meet the demand of 5G,breakthrough in air interface technology is necessary.But innovation in network architecture is also significant and necessary so as to realize the vision of 5G.Centralized or distributed network architectureThe dividing line of access network and the core networkTo reali
10、ze network construction or function configurationThe influence of NFV and SDNIMT-2020(5G)architecture is evolution or revolutionPart1 Five opening problem on designing 5G network architecturePart 02 Integration of 5G and Wi-FiAn general introduction of Integration of 5G and Wi-Fi The integration net
11、work of 5G and Wi-Fi can well solve the problem of rapid growing wireless traffic and user experience pursuit in 5G.Integration of multi-radio access technology,multiple needs and multiple internet were studied to become the inevitable trend for IMT 2020(5G).In the networking of 5G and Wi-Fi,integra
12、tion of network application scene and fusion networking technology were introduced to be the inevitable demand,no-sense authentication,network security,green communication were proposed to become the key technical indications.Integration of networking technology routeIntegrate Wi-Fi into mobile comm
13、unication network as a wireless technology under the circumstance of integration of a variety of cellular network.To realize the multiple access mode of core network with other cellular technologykey technical indicationsno-sense authentication,network security,green communication were proposed to b
14、ecome the key technical indications.Some challenges To work well in a multi service environment with seamless handover technology Interference suppression technology Automatic adaptation technology Security problems.Seamless docking of secure protocol when integrating 5G and Wi-Fi.Part03Securityvisionof5GThe security key technologies Large data security in 5G1Security problems brought by cloudization,virtualization and Software Defined Network,SDN 2The security of mobile intelligent terminal3researchersTHANK YOU VERY MUCH2019 ppt 资料 23 欢迎批评指导！放映结束！感谢聆听！THANK YOU FOR WATCHING!