5G发展路线和关键技术ppt课件

LTE FDDUMB802.16mLTE-A FDDUMB+802.16eIMT =IMT-2000 +IMT-AdvancedHSPA+HSPAWCDMADO Rev BDO Rev 0cdma20001XGSMGPRS/EDGEIS-95cdmaOne注：彼此兼容DO Rev ATD-LTETD-LTE-ATD-HSPA+TD-HSPATD-SCDMAFDDTDD3GPPIEEE802.16LTE-AdvancedWirelessMAN-Advanced后续演进标准化已停止，CDG 大力发展CDMA 与LTE互操作标准，以确保向LTE平滑演进移动通信标准演进3GPP LTE标准版本演进32005.032006.092009.032010.032008.032012.122009.122011.032012.092014.09LTERel-8/9Rel-10/11Rel-12/13Rel-14/15LTE-A4G5G4.5G?20052010200820122012201620162020LTE-Hi的标准化和应用4MacroMacro广域覆盖广域覆盖PicoPico区域覆盖区域覆盖LTE-HiLTE-Hi热点覆盖热点覆盖 全覆盖场景全覆盖场景3GHz3GHz以下频段以下频段TD-LTE宏蜂窝网定位宏蜂窝网定位 小型化小型化、低成本、低功耗、低成本、低功耗面向热点场景，面向热点场景，应对数据应对数据业务爆炸性增长趋势业务爆炸性增长趋势针对高频热点技术创新针对高频热点技术创新需求需求3.4-3.6GHz3.4-3.6GHz频段以及更高频段以及更高LTE-LTE-HiHi为为LTELTE打造多层次、多频段、全覆盖的移动宽带打造多层次、多频段、全覆盖的移动宽带网络网络提升移动网络高速数据提升移动网络高速数据业务支持能力业务支持能力考虑后向兼容性，考虑后向兼容性，与与宏宏蜂窝融合组网蜂窝融合组网 Hotspot and Indoor Higher frequency Higher bandwidth Higher performanceLTE-V研究与标准推动5已部署实施已部署实施部署实施部署实施/原型系统原型系统传统传统 ITS技术技术匝道信号控制匝道信号控制出行信息系统出行信息系统交通管控中心交通管控中心Research当前当前 ITS 方案方案车辆车辆通信设备通信设备基础设施基础设施驾驶员驾驶员ITS前沿技术前沿技术车路协同车路协同综合汽车综合汽车安全系统安全系统IVBSS出行出行辅助系辅助系统统MSAA一体化运输一体化运输走廊管理系走廊管理系统统ICM智能驾驶智能驾驶电子认证收费电子认证收费车路协同车路协同是未来是未来ITS的核心的核心 利用利用LTE-V支持支持V2X道路安全类道路安全类应用：技术和产业基础应用：技术和产业基础ITS（Intelligent Transport System）：智能交通系统6LTE-U 主要是解决当前网络速率、容量跟用户设备对需求的矛盾，方案就是用3gpp的LTE-A 载波聚合（Carrier Aggregation）方案，载波聚合的需求就是频谱，而授权的频谱不够用怎么办，那就用未授权的，所以在R13中提出了这个解决方案，即使用授权的频谱作为主载波，使用非授权的5G频谱做为辅载波，达到载波聚合的效果，从而实现速率和容量的提升。LTE-MLTE-M 主要是针对物联网提出的另外一个解决方案，在 R12 提出，并会在 R13 中进一步完善，即采用LTE的频谱，降低系统的复杂度，以适用于物联网的低功耗、高延时、低性能等特点。LTE-ULTE-U(LTE-Unlicensed)和 LTE-MLTE-M（LTE-Machine to Machine）是3gpp针对现在面临的两个问题提出的两个解决方案LTE-U（免许可频谱LTE）7p 利用免许可频谱（unlicensed spectrum）传送LTEAlways accompanied by a licensed carrierCarrier Aggregation/Supplemental DownlinkDual Connectivity in the futurep 主载波总是使用许可频谱FDD or TDDControl signalling,mobility,user datap 副载波使用非许可频谱Best-effort user data in DL,and potentially UL目前在3GPP提出的非授权LTE主要针对运营商市场，讨论集中于载波聚合授权频谱和非授权频谱的方案，非授权频谱不独立工作，仅负责容量提升。LTE应用场景扩展8D2D设备直通低成本机器通信设备D2D广播通信In network coverage公共安全应用D2D广播通信Partial network coverage公共安全应用Out of network coverage公共安全应用D2D广播通信D2D发现信号In network coverage公共安全应用及商业应用资源分配;物理信道设计;同步信号;协议栈架构U U UD D DD D半双工 9%单天线 27%限制峰值速率 15%1Mbps10Mbps新终端等级LTE-M移动通信与计算技术的代际演进9移动通信跨代演进大数据大数据众连接众连接场景体验场景体验个人电脑个人电脑时代时代始于 1980s桌面互联网桌面互联网时代时代始于 1990s移动互联网移动互联网时代时代始于 2000s可穿戴计算可穿戴计算时代时代始于 2014+计算技术跨代演进移动互联网和物联网是5G发展的主要驱动力移动互联网和物联网在面向2025年最具商业影响力的技术中排名第一和第三2000s1990s2020s2010s个人电脑桌面互联网移动互联网物联网语音数据独立设备机器间通信综合爱立信、Cisco、GSMA等多家公司结果，预测2020年全球将有250亿联网设备10移动互联网物联网身临其境云无处不在万物互联ITU：麦肯锡：5G的应用场景与能力需求11ITU 5G：3类场景u增强移动宽带(EMBB)：体验速率，峰值速率，频谱效率，流量密度u大容量物联网(Massive MTC)：连接数目，低成本，设备功耗u低时延高可靠通信(Critical MTC)：时延，可靠性 其中，增强移动宽带场景分为广域覆盖和热点覆盖eMBBMTCEnhanced Mobile BroadbandMassive Machine Type CommunicationsUltra-reliable and Low Latency Communications3D video,UHD screensSmart CityIndustry automationGigabytes in a secondSelf Driving CarAugmented realitySmart Home/BuildingWork and play in the cloudVoiceMission critical application,e.g.e-healthFuture IMTMETIS：3个场景IMT-2020：2类业务4个场景5G需求研究12Data rate vs Mobility 蜘蛛网系列蜘蛛网系列车头系列车头系列韩国韩国日本中国爱立信韩国5G需求指标建议135G数据数据连接连接用户体验用户体验关键需求关键需求1：1000倍流量，密度10Tbps/Km2关键需求关键需求2：1000亿连接，密度100万/Km2关键需求关键需求3：10Gbps峰值速率，100M/1Gbps用户体验，ms 级端到端时延，99.999%可靠性，1/1000比特成本，1/1000功耗KPIsTrafficDensityConnectionDensityDelayMobilityEnergyEfficiencyUser Experience Data RateSpectrum EfficiencyPeak Data RateITUValue10 Tbps/Km21M/Km21ms(RTT for Radio Interface)500km/h100 x(Network)0.11Gbps or0.1Gbps+Description2/3/5x10/20 Gbps多种场景多种场景,多组指标多组指标14Ref:ITU-R M.IMT.visionITU 5G技术指标5G的技术路线和主要判断15重要观点：1：5G=新空口 与 LTE演进，LTE演进低频段为主，长期存在；2：新空口包括高频段与低频段，低频段新空口具有更优的设计和性能。3：TDD与FDD高度融合，TDD会扮演重要角色。4：新空口技术尽量统一，多场景多频段需求，可能是一个集合（RITs）5：各种接入技术融合为统一开放灵活的网络，服务与整个社会的信息化下一代下一代WLANLTE Enhancement4G LTER 8R14R 9R15R105GNew RAT新应用新应用/新能力新能力新频谱新频谱/新场景新场景5GNew RAT/RATs演进演进创新创新创新创新融合融合其它5G标准化时间窗：2016-2020关键技术研究：2012-2019举行5G Workshop明确潜在频段（6GHz）165G标准化主要工作将于2020年完成175G概念：一组核心技术概念：一组核心技术5G核心技术：核心技术：大规模天线大规模天线+新型多址接入技术新型多址接入技术提升频谱效率，构成确保“任何时间、任何地点”确保用户体验的关键技术 超密集超密集+高频段高频段提升热点流量和传输速率，基于LTE-Hi演进技术的能力提升 低时延高可靠技术低时延高可靠技术拓展业务应用范围，为5G物联网场景应用的关键使能技术5G主要应用场景及关键技术18宏覆盖增强超密集组网M2M增强低时延高可靠通信场景D2D场景典型应用场景关键技术大规模天线非正交传输高频段通信全双工超密集组网先进编码调制灵活双工FBMC.高频段通信时延室外用户体验速率提升至100Mbps热点地区用户体验速率提升至1Gbps空口：1ms端到端：毫秒级连接密度提升10100倍连接总量提升10-100倍用户体验速率连接密度/连接能力全球共识的5G基本能力KPIsTrafficDensityConnectionDensityDelayMobilityEnergyEfficiencyUser Experience Data RateSpectrum EfficiencyPeak Data RateITUValue10 Tbps/Km21M/Km21ms(RTT for Radio Interface)500km/h100 x(Network)0.11Gbps or0.1Gbps+Description2/3/5x10/20 GbpsMore Scenarios,More Parameters19Ref:ITU-R M.IMT.visionITU 5G KPIsIMT Spectrum Bands ExamplesFuture UsageLegacy Bands2G,3G,4G900/1800MHzRe-farming for 5G5G MTC CarriersWRC 15 bands3-6GHz700MHz1.4GHzCore-Bands of 5G in mid-termWider Bandwidth(=100MHz)for 100Mbps User Experience Data RateWRC 19 bands6-100GHzPotential Bands of 5G in long termVery Wide bandwidth(=1GHz)for 10Gbps Data Rate 1GHz3GHz6GHz10GHz30GHz100GHzWRC15WRC19450MHzWRC12&before205G Spectrum5G supports wide range spectrum access User Centric Network Structure with 3 Services Centers Localized Management&Transmission,Light Network Controlling Flexible and Intelligent Network:Backhaul,UE Capability,Network TopologyHet-NetUDNU/C SeparationMulti-RATDynamic Networking215G Network StructureUser-Centric Network StructureLTE Evolution5G New RATFDDRITTDDRITCommonFeaturesBoth FDD and TDD RIT will be enhanced towards 5G requirementsFDD and TDD have their own particular advantages.FDD and TDD will be tightly integrated.FDD Priority FeaturesTDD Priority FeaturesBeamFormingWider BandsHigher SpectrumUDNHigh mobilityWide CoverageMassive ConnectionLow Latency5GFDDTDD22TDD&FDD in 5GChannel ReciprocityDynamic TDDHigher SpectrumWider BandwidthSharing BandwidthMassive MIMOMassive BFUL and DL imbalanceEasy DuplexerFlexible NetworkingHeterogeneousD2D,MESH,RelayTDD PriorityFuture TrendsKey TechnologieslMassive MIMOlUDNlmmwavelPDMAlLow delay high reliabilitylFlexible spectrum sharinglD2DlAntennaTrafficSpectrumNetwork23Flexible Spectrum Usage5G Key Technologies with TDD PriorityTDD will play an important role in 5G24LTE Rel-8LTE Rel-9LTE Rel-10LTE Rel-11DL MIMO EnhancementUL MIMOCoMPSU-MIMOMU-MIMO&BeamformingDual-layer BeamformingMassive MIMO Concentrated macro cellWireless backhaulIndoor/outdoor hotspotHigh-riseDeployment scenarios for Massive MIMO5G Key Technologies with TDD Priority(1)Massive MIMOMassive MIMO is the most important technology in LTE evolution and5G new RAT to increase spectrum efficiency.Throughput relative to 2Tx case Cell averageEdge UEl Massive MIMO results in significant gain in cell average&edge spectrum efficiency.l Higher gain can be achieved for TDD system,taking the advantage of channel reciprocity.3D-UMi3D-UMa4.7545.557.089.765024681012Bit/s/HzFDDTDD48.9%75.9%128 Tx256 TxCodebook based extensionTDD vs.FDDGain in cell edge UE throughput over FDD128 Ant:104.3%256 Ant:137.0%3D-UMa255G Key Technologies with TDD Priority(1)Massive MIMODeployment scenarios for ultra dense networkstreetstadiumOfficeBusiness districtAdvanced Joint TransmissioncampusDense Resident districtAdvanced Interference ManagementUser Centric ArchitectureWireless Backhaul and SONDynamic TDD265G Key Technologies with TDD Priority(2)Ultra Dense Network(UDN)UDN is the most efficient way to enhance area throughput.27Interference coordination&interference managementJoint networking withhigh&low frequencyEnhanced Relay networkingRRM on high frequency5G Key Technologies with TDD Priority(3)mmWave CommunicationmmWave communication is targeted for very high data rate(Gbps)and area throughput(10Tbps/km2)in hotspot area.TDD is the dominant duplex mode for mmWave communication.2728201420132012200920102011SIC Amenable Multiple-Access(SAMA)Pattern Division Multiple Access(PDMA)SIC-amenable transmitter Design SIC based MU detection28Other Key Technologies(1)Pattern Division Multiple Access(PDMA)PDMA is an important technology for spectrum efficiency enhancement and system capacity promotion.29 LTE-VLTE-V-CellLTE-V-DirectArchitecture for Centralized NetworkArchitecture for Decentralized NetworkLocal Lightweight BroadcastSlotted MAC:Flexible and Reliable01N-12.N-2N-101N-12.N-2012Low delay networkLow delay frame structureOther Key Technologies(2)Low Delay High ReliabilityLTE-V is TD-LTE based technology for vehicular communication solution.IMT use idle frequencyby chanceIMT use authorized spectrum by sharePSdatabaseLTE use unlicensed spectrum(LTE-U)Multiple RATs from multiple operators sharing spectrum30Other Key Technologies(3)Flexible Spectrum SharingFlexible spectrum sharing is an important technology for optimal spectrum use.