摘要
物联网应用中,低速率业务占比超过了一半。传统蜂窝物联网技术(2G/3G/4G)由于功耗、成本、覆盖能力等原因在低功耗广域应用中存在一定局限性。以NBIoT和LTE-e MTC为代表的蜂窝技术在低功耗广覆盖业务中扮演着重要角色。首先介绍了NB-IoT技术原理和特点,其次在不同城市部署NB-IoT试验网环境,对比分析了NB-IoT的网络功能和性能,评估各设备厂商当前基站设备性能差异。最后,根据试验结论提出NB-IoT部署方案和建议。
More than half of the IoT applications are low data-rate business. Traditional cellular IoT technologies, such as 2G, 3G and 4G,have some limitations in Low power wide area（LPWA）applications due to power consumption, cost, coverage, etc. LPWA cellular technologies, such as NB-IoT and LTE-e MTC, play an important role in low-power and wide-coverage application. The principles and characteristics of NB-IoT technology is presented firstly. Then the experimental networks of NB-IoT technology are deployed in different cities. Based on the trial environment, the performance difference of network and base station are evaluated by the experiments and comparison analysis. Finally, the deployment schemes of NB-IoT are given.
出处
《邮电设计技术》
2017年第8期40-45,共6页
Designing Techniques of Posts and Telecommunications
