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5G:地球上で最大のショー - 第9巻 AT&Tの5G NRネットワークに焦点を当てた5Gベンチマーク調査

5G: The Greatest Show on Earth - Volume 9, Wafer-Thin Mint (5G Benchmark Study, with a Focus on AT&T's 5G NR Network, which is Deployed as a 5 MHz FDD Carrier in Band n5)

発行 Signals Research Group 商品コード 923872
出版日 ページ情報 英文 54 Pages
納期: 即日から翌営業日
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5G:地球上で最大のショー - 第9巻 AT&Tの5G NRネットワークに焦点を当てた5Gベンチマーク調査 5G: The Greatest Show on Earth - Volume 9, Wafer-Thin Mint (5G Benchmark Study, with a Focus on AT&T's 5G NR Network, which is Deployed as a 5 MHz FDD Carrier in Band n5)
出版日: 2020年02月05日 ページ情報: 英文 54 Pages
概要

当レポートでは、インディアナ州インディアナポリスにて、n5で5MHz FDDキャリアとして展開されているAT&Tの5G NRネットワークを調査し、パフォーマンス、モビリティ、エネルギー効率、ユーザーエクスペリエンスなど各種項目のベンチマーキング分析をまとめています。

第1章 エグゼクティブサマリー

第2章 主な見解

第3章 5G NR:パフォーマンスKPI

第4章 5G NR・LTE:比較分析

第5章 5G NR:モビリティ分析

第6章 5G NR:エネルギー効率

第7章 5G NR:ユーザーエクスペリエンス分析

第8章 LAA KPI

第9章 テスト手法

第10章 総論

第11章 付録

目次

This report focuses on AT&T's 5G NR network, which is deployed as a 5 MHz FDD carrier in Band n5. We did the testing over two separate weekends in Indianapolis, Indiana.

Key Highlights from our Study:

  • Our Thanks. We did this study in collaboration with Accuver Americas, Rohde & Schwarz, and Spirent Communications who provided us with their respective test equipment and platforms, which we identify in the report. SRG did all the testing and analysis of the data and we are solely responsible for the commentary in the report.
  • Our Methodology. We did drive testing over two different weekends in January, covering AT&T's published coverage map for Indianapolis. Our 2nd trip was done to obtain a better representation of the operator's actual 5G coverage area. In total, we transferred well more than 500 GB of data between the two trips.
  • Its only Incremental. As one might expect, 2x5 MHz 5G NR doesn't offer any meaningful improvement in data speeds or the user experience when introduced on top of the operator's very impressive LTE-A network which supports up to 5CA and LAA. 5G NR peak downlink throughput [PDSCH] was 40.2 Mbps, compared with 494 Mbps (LTE) and 678 Mbps (LTE with LAA). All uplink user data traffic presently goes over LTE.
  • 5G NR was Hard to Find. Although the published coverage map was clearly optimistic, the bigger challenge was getting the smartphone to stop using a low-band LTE frequency and switch to 5G NR. This issue can be addressed through optimization, but we had to manually turn-off low-band LTE in the Note 10 Plus to help ensure our smartphone used 5G NR when it was available.
  • Energy Efficiency is a Work in Progress. 5G NR still has much higher current requirements than LTE, but unlike millimeter wave deployments, a narrowband 5G NR channel cannot send enough data to offset the higher current.
  • EN-DC with split bearer functionality was aggressively used. Perhaps out of necessity, our smartphone took full advantage of LTE and 5G NR in most cases (a good thing), although there were instances when we knew carrier aggregation was available but not used. The combined forces of LTE and 5G NR can benefit the consumer but it can also result in a misleading characterization of 5G NR performance if the results are not analyzed correctly. For reasons explained in the report, a smartphone using 5G NR can actually result in lower total throughput than simply using LTE.

Table of Contents

  • 1.0. Executive Summary
  • 2.0. Key Observations
  • 3.0. 5G NR Performance KPIs
  • 4.0. 5G NR and LTE Comparative Analysis
  • 5.0. 5G NR Mobility Analysis
  • 6.0. 5G NR Energy Effi ciency
  • 7.0. 5G NR User Experience Analysis
  • 8.0. LAA Key Performance Indicators
  • 9.0. Test Methodology
  • 10.0. Final Thoughts
  • 11.0. Appendix

Index of Figures & Tables

  • Figure 1. 5G Phone and LTE Phone Total Throughput Time Series Plot
  • Figure 2. Distribution of Throughput
  • Figure 3. Overall Spectral Effi ciency
  • Figure 4. PDSCH Throughput Versus SINR
  • Figure 5. PDSCH Throughput Versus RSRP
  • Figure 6. Distribution of MCS Values
  • Figure 7. Distribution of Modulation Schemes
  • Figure 8. 5G Phone and LTE Phone Total Throughput Time Series Plot
  • Figure 9. 5G Phone Throughput by 5G and LTE Component Carrier Time Series Plot
  • Figure 10. Average 5G Phone and LTE Phone Throughput by Component Carrier
  • Figure 11. Average 5G Phone and LTE Phone RB Normalized Throughput by Component Carrier
  • Figure 12. 5G Phone and LTE Phone Spectral Effi ciency
  • Figure 13. 5G Phone and LTE Phone MIMO Rank and Modulation Scheme for Band 2 Time Series Plot
  • Figure 14. 5G Phone and LTE Phone MIMO Rank and Modulation Scheme for Band 66 Time Series Plot
  • Figure 15. Distribution of LTE MIMO Rank by Component Carrier
  • Figure 16. Distribution of LTE Modulation Scheme by Component Carrier
  • Figure 17. Overall LTE Spectral Effi ciency by Component Carrier
  • Figure 18. LTE Spectral Effi ciency Modulation Scheme Sensitivity Analysis by Component Carrier
  • Figure 19. LTE Spectral BOTTOM MIMO Rank Sensitivity Analysis by Component Carrier
  • Figure 20. Geo Plot of Galaxy Note 10 Plus 5G and LTE Connections
  • Figure 21. 5G Connection Time
  • Figure 22. Band Utilization
  • Figure 23. Geo Plot of 5G Availability - Scanner
  • Figure 24. Geo Plot of Note 10 Plus 5G Connections
  • Figure 25. Geo Plot of 5G Icon Indicator
  • Figure 26. Distribution of LTE Carrier Aggregation Utilization
  • Figure 27. Geo Plot of Note 10 Plus Band 12 or Band 14 Usage
  • Figure 28. Geo Plot of LTE Carrier Aggregation
  • Figure 29. Distribution of LTE Throughput without a Simultaneous 5G Connection
  • Figure 30. Geo Plot of Note 10 Plus 5G and LTE Connections - Downtown Indianapolis Test Site
  • Figure 31. Total Throughput, LTE Primary Cell Band, and 5G NR Connection Status Time Series Plot
  • Figure 32. 5G NR Connection Status and RSRP Time Series Plot
  • Figure 33. Note 10 Plus in Idle Mode - 5G NR versus LTE
  • Figure 34. Note 10 Plus 5G NR versus Note 8 LTE with Full Buffer UDP Data Transfers
  • Figure 35. Note 10 Plus LTE versus Note 8 LTE with Full Buffer UDP Data Transfers
  • Figure 36. Note 10 Plus 5G NR versus Note 10 Plus with 5 Mbps UDP Data Transfers
  • Figure 37. Note 10 Plus 5G NR versus Note 8 with Video Chat Call
  • Figure 38. YouTube Performance Metrics
  • Figure 39. 5G Phone and LTE Phone Physical Layer Throughput with YouTube
  • Figure 40. 5G Phone and LTE Phone YouTube Buffer Rates
  • Figure 41. 5G Phone and LTE Phone Webpage Load Times
  • Figure 42. 5G Phone and LTE Phone Physical Layer Throughput with Web Browsing
  • Figure 43. 5G Phone and LTE Phone Physical Layer Transmit Power with Web Browsing
  • Figure 44. 5G Phone and LTE Phone Physical Layer Throughput with Video Chat
  • Figure 45. 5G Phone and LTE Phone Physical Layer Transmit Power with Video Chat
  • Figure 46. LTE Primary Cell Frequency Band Geo Plot
  • Figure 47. Distribution of LTE and LAA Throughput
  • Figure 48. LTE and LAA Spectral Efficiency
  • Figure 49. LTE Band 2 MIMO Rank and Modulation Scheme with LAA Present
  • Figure 50. XCAL-Solo in Action
  • Figure 51. XCAL-Solo Hardware
  • Figure 52. TSME6 Scanner
  • Figure 53. XCAL-M with TSME6 Scanner Information
  • Figure 54. Umetrix Data Architecture
  • Figure 55. Average 5G Phone and LTE Phone Allocated Resource Blocks by Component Carrier
  • Figure 56. LTE Phone Throughput by Component Carrier Time Series Plot
  • Figure 57. 5G Phone MCS Allocation Time Series Plot
  • Figure 58. 5G Phone and LTE Phone Throughput in Band 2 Time Series Plot
  • Figure 59. 5G Phone and LTE Phone Throughput in Band 66 Time Series Plot
  • Figure 60. Median LTE RSRP by Component Carrier
  • Figure 61. Median LTE SINR by Component Carrier
  • Figure 62. Primary Cell Utilization