V2EX pdn connectivity

PDN Connectivity

释义 Definition

PDN Connectivity(分组数据网连接):移动通信中,终端(UE)与外部分组数据网络(PDN,如互联网或企业专网)之间建立并维持数据业务连接的能力/过程,通常涉及获得IP地址、建立承载(bearer)与相关会话管理(如APN/DNN、QoS等)。在LTE/5G语境下,也常指“建立到某个PDN的连接/会话”。

发音 Pronunciation (IPA)

/pi di n knktvti/

例句 Examples

The phone lost PDN connectivity, so mobile data stopped working.
手机失去了PDN连接,所以移动数据无法使用。

After the network upgrade, the UE can establish PDN connectivity faster and keep the default bearer stable during handover.
网络升级后,终端建立PDN连接更快,并且在切换过程中能更稳定地保持默认承载。

词源 Etymology

PDNPacket Data Network(分组数据网)的缩写,源自通信领域对“以分组方式传输数据的网络”的称呼;connectivity 来自 connect(连接)+ 名词后缀 -ivity,表示“可连接性/连接能力”。组合在一起,指“与分组数据网之间的连接(能力/过程)”。

相关词 Related Words

文献与作品 Notable Works

  • 3GPP TS 23.401 **General Packet Radio Service (GPRS) enhancements for E-UTRAN access (EPC)**(LTE/EPC中与PDN连接相关的核心规范之一)
  • 3GPP TS 23.060 GPRS; Service description; Stage 2(较早体系中与PDP/PDN连接概念密切相关)
  • 3GPP TS 24.301 **Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS)**(涉及建立/管理相关连接的信令流程)
  • 3GPP TS 23.501 **System architecture for the 5G System (5GS)**(5G系统架构中与数据网连接/会话相关的描述)
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