V2EX serving gateway

Serving Gateway

释义 Definition

Serving Gateway(常缩写为 S-GW):移动通信网络(尤其是 LTE/EPC)中的核心网节点,主要负责用户数据面的转发与路由,并在用户移动(切换、跨基站移动)时维持数据承载;同时常作为与外部网络/其他核心网功能之间的数据转发锚点之一。(该术语也可泛指“提供服务的网关”,但在通信领域多指 LTE 的 S-GW。)

发音 Pronunciation (IPA)

/srv etwe/

例句 Examples

The serving gateway forwards user data between the base station and the core network.
服务网关在基站与核心网之间转发用户数据。

During handover, the serving gateway can keep the data path stable while the user moves across cells.
在切换过程中,服务网关可以在用户跨小区移动时保持数据路径稳定。

词源 Etymology

serving 来自动词 serve(服务、提供)加 -ing(表示“正在执行某功能/起……作用的”);gatewaygate(门)+ way(道路)构成,引申为“网络出入口/网关”。合起来表示“承担服务与转发职责的网关节点”。

相关词 Related Words

文献与作品 Notable Works

  • 3GPP TS 23.401(E-UTRAN 接入的总体架构;定义并频繁使用 **Serving Gateway (S-GW)**)
  • LTE for UMTS: Evolution to LTE-Advanced(多章讨论 EPC 架构,包含 Serving Gateway 的功能与接口)
  • LTEThe UMTS Long Term Evolution: From Theory to Practice(介绍 LTE/EPC 数据面,涉及 S-GW 的角色与数据路径)
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