摘要
窄带物联网(NB-IoT)是一种在3GPP Release 13中引入的用于提供低功耗、广覆盖的物联网(IoT)蜂窝技术。通过对NB-IoT物理层的空口概述,分享了NB-IoT标准化过程中的若干方案设计原理,结合协议重点分析NB-IoT如何解决物联网的关键需求,如组网灵活性、海量设备接入、广覆盖、硬件的低复杂度、长电池寿命等特性,并在此基础上给出运营商网络的规划覆盖建议。
引文
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