V2EX user plane

User Plane

Definition / 释义

在通信网络与系统架构中,“user plane”(用户面)指承载与转发用户实际数据流量的功能与路径(如语音/视频/网页数据包等),相对的概念是负责信令与控制的 control plane(控制面)。常见于蜂窝网络(LTE/5G)、核心网、路由与分层架构讨论中。

Pronunciation / 发音(IPA)

/juzr plen/

Examples / 例句

The user plane carries the video stream while the control plane handles signaling.
用户面承载视频流量,而控制面负责信令。

To reduce latency, the operator moved user plane functions closer to the edge of the network.
为降低时延,运营商将用户面功能下沉到更靠近网络边缘的位置。

Etymology / 词源

“User plane”由 user(用户) + plane(平面/层面) 组合而成。这里的 plane 表示系统中的“功能层/处理层面”,用于区分不同职责的逻辑分层;因此“用户面”强调“面向用户数据承载”的那一层,与“控制面”形成对应。

Related Words / 相关词汇

Notable Works / 典型出处

  • 3GPP TS 23.501: **System Architecture for the 5G System (5GS)**(系统架构中大量使用“user plane / control plane”等术语)
  • 3GPP TS 23.502: **Procedures for the 5G System (5GS)**(描述用户面与控制面相关流程)
  • LTE and the Evolution to 4G Wireless(关于LTE/EPC架构,讨论用户面承载与转发路径)
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