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ラボ環境における3GPP型IoTデバイスのパフォーマンスベンチマーク調査

It's Raining Cats and Cats: A Performance Benchmark Study of 3GPP-based IoT Devices in a Lab Environment

発行 Signals Research Group 商品コード 791883
出版日 ページ情報 英文 57 Pages
納期: 即日から翌営業日
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ラボ環境における3GPP型IoTデバイスのパフォーマンスベンチマーク調査 It's Raining Cats and Cats: A Performance Benchmark Study of 3GPP-based IoT Devices in a Lab Environment
出版日: 2019年02月19日 ページ情報: 英文 57 Pages
概要

当レポートでは、3GPP型IoTデバイスのベンチマーク調査を実施し、幅広いネットワーク条件・使用シナリオで動作するCat M1 および Cat NB1 モジュール・デバイスの電力消費/エネルギー要件の分析を提供しています。

第1章 エグゼクティブサマリー

第2章 主な見解

第3章 LTE-M および NB-IoT 省エネ機能のイントロダクション

第4章 Cat NB1 電力測定結果・分析

  • Cat NB1 電力測定結果・分析
  • Cat NB1 バッテリー寿命推計・分析
  • Cat NB1 エネルギー予算分析

第5章 Cat M1 電力測定結果・分析

  • Cat M1 電力測定結果・分析
  • Cat M1 バッテリー寿命推計・分析
  • Cat NB1 および Cat M1 比較分析

第6章 テスト方法

第7章 結論

第8章 付録

目次

SRG conducted what we believe is the first independent benchmark study of 3GPP-based IoT devices. For this study, we analyzed the power consumption / energy requirements of Cat M1 and Cat NB1 modules and devices operating under a wide range of network conditions and usage scenarios.

Highlights of the Report include the following:

  • Our Thanks. We did this study in collaboration with the H2020 EU TRIANGLE Project and the Connectivity Services Section at Aalborg University. TRIANGLE performed tests on our behalf, leveraging its lab facilities in Europe. SRG takes full responsibility for the analysis of the data provided in the report.
  • Our Methodology. We tested Cat M1 and Cat NB1 modules and devices leveraging Keysight Technologies test equipment. By measuring the voltage and current with a high sampling rate and with very precise accuracy we were able to estimate the battery life of the devices under test. Additionally, we were able to allocate the energy budget to each IoT state (PSM, DRX, Synch, etc.).
  • The Scope. We included 3 radio conditions (Good, Robust and Extreme), four reporting cycles (2 hours to monthly) and nine data payloads (2 bits to 1,600 bits). Results in the report slice and dice the results multiple ways to show the relative impact of each primary assumption in the scenario. In addition to showing absolute results, we provide relative analysis to quantify the percentage impact of modifying each assumption.
  • The Results. A 10-year battery life is feasible with many scenarios - in fact, we observed multiple scenarios in which the battery life exceeded the life expectancy of a human residing in the US circa 1800. However, in other cases the estimated battery life fell well short of the 3GPP target threshold of 10 years. Furthermore, our analysis excludes ancillary components that an IoT device will likely need and which could have a very meaningful impact on the battery life.
  • More To Come. This report is the first in a series of IoT studies. We are currently in the Australian Bush conducting IoT field studies (Cat NB1, Cat M1, and Cat 1) and we'll be doing more field studies back in the US, likely including non-3GPP IoT solutions, such as LoRa.

Table of Contents

1.0. Executive Summary

2.0. Key Observations

3.0. A Quick Introduction to LTE-M and NB-IoT Power Saving Features

4.0. Cat NB1 Power Measurement Results and Analysis

  • 4.1. Cat NB1 Power Measurement Results and Analysis
  • 4.2. Cat NB1 Battery Life Estimates and Analysis
  • 4.3. Cat NB1 Energy Budget Analysis

5.0. Cat M1 Power Measurement Results and Analysis

  • 5.1. Cat M1 Power Measurement Results and Analysis
  • 5.2. Cat M1 Battery Life Estimates and Analysis
  • 5.3. Cat NB1 and Cat M1 Comparative Analysis

6.0. Test Methodology

7.0. Final Thoughts

8.0. Appendix

Index of Figures & Tables

  • Table 1. Cat M1 and Cat NB1 Modules and Devices
  • Table 2. Scope of Study
  • Figure 1. 3GPP IoT Transition States
  • Figure 2. DRX and C-DRX Idle Mode Power Requirements
  • Figure 3. DRX Active Listening and Synchronization Times
  • Figure 4. DRX Active Listening and Synchronization Energy Requirements
  • Figure 5. C-DRX Active Listening and Synchronization Times
  • Figure 6. C-DRX Active Listening and Synchronization Energy Requirements
  • Figure 7. PSM Power Requirements
  • Figure 8. Receive Mode Power Requirements
  • Figure 9. TX Transmission Power versus TX Power Consumption
  • Figure 10. Estimated Battery Life - 24-hour reporting with good conditions and varying data payloads
  • Figure 11. Estimated Battery Life - 24-hour reporting with robust conditions and varying data payloads
  • Figure 12. Estimated Battery Life - 24-hour reporting with extreme conditions and varying data payloads
  • Figure 13. Estimated Battery Life - 2-hour reporting with robust conditions and varying data payloads
  • Figure 14. Estimated Battery Life - 24-hour reporting with robust conditions and varying data payloads
  • Figure 15. Estimated Battery Life - Monthly reporting with robust conditions and varying data payloads
  • Figure 16. Estimated Battery Life - 2-hour reporting with 10-byte payload and varying network conditions
  • Figure 17. Estimated Battery Life - 2-hour reporting with 100-byte payload and varying network conditions
  • Figure 18. Estimated Battery Life - 2-hour reporting with 500-byte payload and varying network conditions
  • Figure 19. BC95-B20 Performance - Extreme Conditions
  • Figure 20. SARA-N211 Performance - Extreme Conditions
  • Figure 21. SARA-R410M Performance - Extreme Conditions
  • Figure 22. Energy Budget - 10 Bytes @ 2-hour reporting with good conditions
  • Figure 23. Energy Budget - 10 Bytes @ 2-hour reporting with extreme conditions
  • Figure 24. Energy Budget - 500 Bytes @ 24-hour reporting with good conditions
  • Figure 25. Energy Budget - 500 Bytes @ 24-hour reporting with extreme conditions
  • Figure 26. Energy Budget - 100 Bytes @ 24-hour and monthly reporting with good conditions
  • Figure 27. Energy Budget - 1600 Bytes @ 24-hour and monthly reporting with extreme conditions
  • Figure 28. SARA-N211 Performance - Extreme Conditions
  • Figure 29. DRX Active Listening and Synchronization Energy Requirements
  • Figure 30. DRX Active Listening and Synchronization Energy Requirements
  • Figure 31. C-DRX Active Listening and Synchronization Times
  • Figure 32. C-DRX Active Listening and Synchronization Energy Requirements
  • Figure 33. PSM Power Requirements
  • Figure 34. Receive Mode Power Requirements
  • Figure 35. TX Transmission Power versus TX Power Consumption
  • Figure 36. Test Setup
  • Table 3. N6705 Measurement Accuracy
  • Figure 37. Power Saving Mode (PSM) Cycle Power Requirements
  • Figure 38. Quectel BC95-B20 Active Period with Different Repetitions
  • Table 4. Network and Device Parameters - NB-IoT
  • Figure 39. Estimated Battery Life - 10-byte payload and robust network conditions with varying reporting periods
  • Figure 40. Estimated Battery Life - 100-byte payload and robust network conditions with varying reporting periods
  • Figure 41. Estimated Battery Life - 1000-byte payload and robust network conditions with varying reporting periods
  • Figure 42. BC95-B20 Performance - Good Conditions
  • Figure 43. SARA-N211 Performance - Good Conditions
  • Figure 44. SARA-R410M Performance - Good Conditions
  • Figure 45. BC95-B20 Performance - Robust Conditions
  • Figure 46. SARA-N211 Performance - Robust Conditions
  • Figure 47. SARA-R410M Performance - Robust Conditions
  • Figure 48. Energy Budget - 10 Bytes @ 24-hour and monthly reporting with good conditions
  • Figure 49. Energy Budget - 10 Bytes @ 24-hour and monthly reporting with extreme conditions
  • Table 5. Power Consumption Per State
  • Table 6. Estimated Cat NB1 Battery Life
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