数据网—LTE 核心网(EPC)中国电信维护岗位认证教材编写小组编制目 录第 1 章 EPS 网络概述 ............................... 31.1 EPS 网络概述........................................................ 31.1.1 EPS 网络关键概念 ............................................... 31.1.2 EPS 网络关键技术 ............................................... 31.2 当前主流技术向 LTE 的演进 ...........................................3第 2 章 EPC 网络架构 ............................... 52.1 LTE-EPC 目标网络架构................................................ 52.2 EPC 重要网元........................................................ 52.2.1 GW ............................................................ 52.2.2 MME ........................................................... 62.2.3 HSS ........................................................... 62.2.4 PCRF .......................................................... 72.3 EPC 重要接口........................................................ 7第 3 章 EPC 基本流程 ............................... 93.1 Attach ............................................................. 93.2 TAU ................................................................ 93.3 Service Request ...................................................103.4 S1- Release ....................................................... 113.5 Detach ............................................................ 123.6 承载创建/修改/删除 ................................................133.7 切换 .............................................................. 143.8 PDN 连接或者去连接................................................. 17第 1 章 EPS 网络概述1.1 EPS 网络概述1.1.1 EPS网络关键概念LTE:Long Term Evolution长期演进,是3GPP制定的高数据率、低延时、面向分组域优化的新一代宽带移动通信标准项目。3GPP: The 3rd Generation Partnership Project,第三代合作伙伴计划3GPP的目标是实现由2G网络到3G网络的平滑过渡,保证未来技术...