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Critical power analysis for control path of a CAT-M based edge device
International Journal of Information Technology Pub Date : 2021-04-13 , DOI: 10.1007/s41870-021-00640-y
Harshita Bhilwaria , Virender Ranga , Anirudh Gargi

LTE Machine Type Communication Category M1 [LTE CAT M (or M1)] is a 3GPP Low Power Wide Area Network most suitable for IoT devices that need low data rates, deep coverage, low-cost, and, most importantly, power-efficient devices. As the number of IoT system devices (called things) is growing massively, there is a shift needed from the traditional LTE network to these low power networks. Power consumption should be minimum for all stages of device functionality to keep the devices working for longest possible time. We performed a power consumption analysis of CAT-M technology under various control path scenarios using a standard CAT-M modem. Due to the absence of a live CAT-M network in India, we use a network simulator to emulate live network scenario by varying network parameters. We measured the power consumed by the CAT-M modem using a standard tool and present simulation results of a variety of network configurable parameters allowed by 3GPP. These parameters are configurable both in scope of user equipment and network deployment. This paper covers some important power measurements related to Power Saving Mode (PSM), extended Discontinuous Reception Mode (eDRX), Uplink Transmission Power, Channel Repetition, Bandwidth and Sub-carrier Spacing. Data path (user payload) considerations are not scope of this document. By the end of the paper, we identified the impact of each parameter on the performance of the CAT-M modem.



中文翻译:

基于CAT-M的边缘设备的控制路径的关键功率分析

LTE机器类型通信类别M1 [LTE CAT M(或M1)]是最适合需要低数据速率,深度覆盖,低成本以及最重要的是省电设备的IoT设备的3GPP低功耗广域网。随着物联网系统设备(称为物)的数量大量增加,需要从传统的LTE网络向这些低功耗网络转变。对于设备功能的所有阶段,功耗都应最小,以使设备保持尽可能长的工作时间。我们使用标准的CAT-M调制解调器在各种控制路径方案下进行了CAT-M技术的功耗分析。由于印度不存在实时CAT-M网络,因此我们使用网络模拟器通过更改网络参数来模拟实时网络场景。我们使用标准工具测量了CAT-M调制解调器的功耗,并给出了3GPP允许的各种网络可配置参数的仿真结果。这些参数在用户设备范围和网络部署方面都是可配置的。本文涵盖了与省电模式(PSM),扩展不连续接收模式(eDRX),上行链路传输功率,信道重复,带宽和子载波间隔有关的一些重要功率测量。数据路径(用户有效负载)注意事项不在本文档范围内。在本文的最后,我们确定了每个参数对CAT-M调制解调器性能的影响。本文涵盖了与省电模式(PSM),扩展不连续接收模式(eDRX),上行链路传输功率,信道重复,带宽和子载波间隔有关的一些重要功率测量。数据路径(用户有效负载)注意事项不在本文档范围内。在本文的最后,我们确定了每个参数对CAT-M调制解调器性能的影响。本文涵盖了与省电模式(PSM),扩展不连续接收模式(eDRX),上行链路传输功率,信道重复,带宽和子载波间隔有关的一些重要功率测量。数据路径(用户有效负载)注意事项不在本文档范围内。在本文的最后,我们确定了每个参数对CAT-M调制解调器性能的影响。

更新日期:2021-04-13
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