Standard Number: YD/T 4000-2021(YD/T4000-2021)
Chinese:面向物联网的蜂窝窄带接入（NB-IoT） 核心网设备测试方法（第二阶段）
English:Test Methods for Cellular Narrow Band Access (NB-IoT) Core Network Devices for the Internet of Things (Phase II)
Effective Date:2022-04-01
Standard Applicability:This document applies to the testing of core network MMEs, S-GWs, P-GWs, HSSs, SCEFs, and CG devices in low-power wide-coverage IoT scenarios accessed using NB-IoT technology.
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