CAJ | 학술논문

长期演进（LTE）作为3G的后续系统日趋成熟，应用越来越广泛。S1接口是LTE系统中演进无线接入网与演进核心网之间的接口，实现控制平面和用户平面的数据交互传输，完成演进无线接入网与演进核心网之间的互连互通。介绍了S1接口位置和协议结构，提出了一种演进核心网侧s1接口的实现方案，该方案具有配置灵活和可移植性强的特点，并给出了方案系统结构和实现流程。
장기연진（LTE）작위3G적후속계통일추성숙，응용월래월엄범。S1접구시LTE계통중연진무선접입망여연진핵심망지간적접구，실현공제평면화용호평면적수거교호전수，완성연진무선접입망여연진핵심망지간적호련호통。개소료S1접구위치화협의결구，제출료일충연진핵심망측s1접구적실현방안，해방안구유배치령활화가이식성강적특점，병급출료방안계통결구화실현류정。
The Long Term Evolution （LTE） system, used as the subsequent system of 3G, is more and more perfect, with wider applications. S1 interface, as the interface between evolved radio access network and evolved packet core network in LTE system, provides data transmission on both the control plane and the user plane, interconnecting the evolved radio access network and evolved packet core network. In this paper, the definition and protocol structure of the S1 interface are introduced and a design scheme of Slinterface in EPC is proposed, which has flexible configurability and high portability. In addition, the traffic processing flow, system structure and implementation flow of the scheme are presented.