Title:Type:ArialSize:32-24-ptColor:TheZTEblueSubtitle:Type:ArialSize:20ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245汪钱纯、丰孝英NB-IoT介绍Title:Type:ArialSize:24ptColor:TheZTEblueSubtitle:Type:ArialSize:16-20ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245●背景●业务模型●标准进展●NB-IoT解决方案●NB-IoT部署目录Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved3内部公开▲产生背景Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved4内部公开▲产生背景Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved5内部公开▲产生背景物联网通信技术分类从传输距离上区分:●短距离通信技术Zigbee、Wi-Fi、Bluetooth、Z-wave典型应用如智能家居。●广域网通信技术LPWAN(LowPowerWideAreaNetwork)●工作在非授权频道:非标、自定义,如Lora、Sigfox,●工作在授权频道:3GPP、3GPP2定义,如GSM、CDMA、WCDMANB-IOT是3GPP在2015年9月立项提出的一种新的窄带蜂窝通信LPWAN技术。Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved6内部公开▲产生背景3GPPMTC技术考虑未来IOT万物互联的发展趋势,3GPPMTC技术主要致力于两个方向:1、面对非3GPP技术挑战,开展GSM技术演进和全新接入技术的研究。2、考虑未来替代2G/3G物联网模块,研究低成本,演进的LTE-MTC技术。NB-IOT正是源于方向1中全新接入技术的研究。Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved7内部公开▲产生背景Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved8内部公开▲业务模型Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved9内部公开▲业务模型Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved10内部公开▲标准进展R133GPP相关IOT项目关系简图Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved11内部公开▲标准进展Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved12内部公开▲标准进展Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved13内部公开▲NB-IOT解决方案Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved14内部公开▲NB-IOT解决方案Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved15内部公开▲NB-IOT解决方案Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved16内部公开▲NB-IOT解决方案Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved17内部公开▲NB-IOT解决方案Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved18内部公开▲NB-IOT解决方案Non-RoamingArchitectureRoamingArchitectureC-SGN(CIoTServingGatewayNode)包括MME,SGW,PGW,可以合设,也可以分设。Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved19内部公开▲NB-IOT解决方案IntroductionofCIoTEPSOptimisations●UserPlaneCIoTEPSOptimisation最主要优化是在空口上,eNodeB可快速恢复无线承载,使得上行小数据传输流程加快。●ControlPlaneCIoTEPSOptimisation最主要优化是在空口和S1接口上,采用信令通道来携带用户面数据包。Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved20内部公开▲Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTECorporation.Allrightsreserved目录控制面小数据传输优化NB-IoT提供窄带物联网终端的接入控制和小数据传输。传统用户面数据传输:当UE在IDLE态发起数据传输,流程复杂,信令开销远远大于数据包本身;控制面小数据传输优化方案:在空口侧/S1接口:小数据包携带在RRC连接信令、S1初始化消息中,减少RRC/S1交互流程;在核心网侧:MME通过S11-U用户面路由小数据包;eNodeBMME/SGSNSGW/PGW公共安全智能交通智能电网物联网应用HSS传统用户面数据传输路径在无线空口、S1接口上使用控制面传输小数据包,极大节省信令流程通过优化,空口、S1接口信令可减少50%以上。Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved21内部公开▲Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTECorporation.Allrightsreserved目录用户面小数据传输优化NB-IoT提供窄带物联网终端的接入控制和小数据传输。用户面小数据传输优化:在UE、eNodeB存储承载上下文eNodeB利用存储的空口承载上下文信息,快速恢复空口DRB承载,提升MO数据流程速度;eNodeB利用存储的S1-U承载上下文,将UE的IP数据包直接发往SGW,无需等候SGW恢复下行S1-U承载;eNodeBMME/SGSNSGW/PGW公共安全智能交通智能电网物联网应用HSSeNodeB存储空口、S1承载上下文,可快速恢复DRB承载可快速恢复的空口/S1-U承载Title:Type:ArialSize:22-24ptColor:TheZTEblueSubtitle:Type:ArialSize:14-18ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245©ZTEAllrightsreserved22内部公开▲NB-IOT