NEWS: 公告在東京證券交易所JASDAQ標準市場新上市

表紙
市場調查報告書

MIMO技術:實用LTE網路的4X4 MIMO的影響度分析

Finding MIMO: Quantifying the Impact of 4x4 MIMO in a Commercial LTE Network

出版商 Signals Research Group 商品編碼 769373
出版日期 內容資訊 英文 49 Pages
商品交期: 最快1-2個工作天內
價格
MIMO技術:實用LTE網路的4X4 MIMO的影響度分析 Finding MIMO: Quantifying the Impact of 4x4 MIMO in a Commercial LTE Network
出版日期: 2017年09月01日內容資訊: 英文 49 Pages
簡介

本報告提供世界第一個4X4 MIMO的活用狀況相關分析,參照T-Mobile在美國、明尼阿波利斯機場附近開始供給的實用LTE網路的案例,並彙整最新技術的概要、特性和主要的應用領域,與類似計劃成果的比較分析,今後的市場機會等資訊,為您概述為以下內容。

第1章 摘要整理

第2章 分析概要

第3章 明尼阿波利斯機場北部的案例分析 (North of MSP Airport) (4x4 MIMO)

第4章 美國農村的案例 (Rural America) (4x4 MIMO)

第5章 美國西部郊區的案例 (West Suburbs) (2x2 MIMO)

第6章 電池壽命的影響度

第7章 上行鏈路性能分析

第8章 檢驗手法

第9章 結論

目錄

In this Signals Ahead report we provide the results from the industry's first and only independent performance analysis of 4X4 MIMO. For this study we used the T-Mobile commercial LTE network in the Minneapolis market where Nokia is the infrastructure supplier.

Highlights of the Report include the following:

  • Our Thanks. This study could not have been done without the support of Accuver Americas, who provided us with its XCAL-M drive test tool as well as its XCAP post-processing solution to analyze the data that we collected.
  • Our Approach. We burned through more than 9 SIM cards (28 GB each) while transferring data on Samsung Galaxy S7 smartphones. We purchased one S7 from a T-Mobile store. This phone supported 4X4 MIMO, 256-QAM, and a 4-way receive antenna architecture, as well as uplink 64-QAM. We also purchased an unlocked S7 from a Best Buy store. This phone did not support any of these features. We configured the phones so that they only operated in Band 4 to maximize the potential use of 4X4 MIMO. We used the Datum application from Spirent Communications in order to generate the downlink and uplink traffic.
  • The Tease. Over the course of all testing, including various morphologies and clusters of 4X4 and 2X2 MIMO sites, we observed that the median downlink data rate for the T-Mobile S7 was 55% higher than the Best Buy S7.
  • The Detailed Analysis. In the main body of the report we analyze the performance differences between the two smartphones in excruciating detail. We quantify the incremental benefits of RI = 3/4 only, 256-QAM only, and mixed use of 256-QAM and RI = 3/4, as well as the benefits of a 4-way receive antenna architecture.
  • What about Power? We quantify how the LTE-Advanced features that we tested impacted battery life, including normalized results which take into consideration differences in measured data speeds.
  • What about the Uplink? Following our major study of uplink performance, based on testing in Seoul, South Korea, we revisit the impact of uplink 64-QAM on the uplink performance with a particular focus on the probability that the mobile device uses the higher modulation scheme. The findings are surprising.

Table of Contents

1.0. Executive Summary

2.0. Key Observations

3.0. North of MSP Airport (4x4 MIMO)

4.0. Rural America (4x4 MIMO)

5.0. West Suburbs (2x2 MIMO)

6.0. The Impact on Battery Life

7.0. Uplink Performance Analysis

8.0. Test Methodology

9.0. Final Thoughts

Index of Figures & Tables

  • Figure 1. Aggregate Comparison of Results - Band 4 Only
  • Figure 2. Geo Plot of Rank Indicator Reports - Best Buy S7
  • Figure 3. Geo Plot of Rank Indicator Reports - T-Mobile S7
  • Figure 4. Physical Layer Throughput Comparison
  • Figure 5. Physical Layer Throughput Cumulative Distribution
  • Figure 6. Physical Layer Throughput Versus RSRP
  • Figure 7. Rank Indicator Reports Versus RSRP
  • Figure 8. Performance Gain and Probability Analysis - 256-QAM and Rank Indicator = 3
  • Figure 9. Performance Gain and Probability Analysis - 256-QAM and Rank Indicator = 3 (Limited)
  • Figure 10. Combined Throughput and Combined RB Adjusted Throughput versus RSRP with Probability Analysis
  • Figure 11. MCS Reports versus RSRP Analysis
  • Figure 12. Median MCS Values and Rank Indicator Analysis - RSRP > -75 dBm
  • Figure 13. 256-QAM versus Rank Indictor =3 Performance Comparison - RSRP > -75 dBm
  • Figure 14. Median MCS Values - Long Pine Cell Site
  • Figure 15. Physical Layer Throughput and RB Allocations - Long Pine Cell Site
  • Figure 16. Median SINR and CQI Values - RSRP > -75 dBm
  • Figure 17. RSRP Distribution - by Antenna
  • Figure 18. Median RSRP Values for each Antenna - by RI=3 Utilization Rates
  • Figure 19. Median RSRP Values for each Antenna - by RI=3 Utilization Rates
  • Figure 20. Physical Layer Throughput, RI=3 Utilization and 256-QAM Utilization Time Series
  • Figure 21. Physical Layer Throughput, RI=3 Utilization and 256-QAM Utilization Time Series Plot
  • Figure 22. Physical Layer Throughput, RI=3 Utilization and 256-QAM Utilization Time Series Plot
  • Figure 23. Geo Plot of Rank Indicator Reports - no 256-QAM
  • Figure 24. Geo Plot of Rank Indicator Reports - with 256-QAM enabled
  • Figure 25. Physical Layer Data Rates - T-Mobile S7 (Band 4 Only)
  • Figure 26. Geo Plot of Rank Indicator Reports - T-Mobile S7
  • Figure 26. Geo Plot of Rank Indicator Reports - T-Mobile S7
  • Figure 28. Physical Layer Throughput Comparison
  • Figure 29. Physical Layer Throughput Cumulative Distribution
  • Figure 30. Physical Layer Throughput Versus RSRP
  • Figure 31. Rank Indicator Reports Versus RSRP
  • Figure 32. Performance Gain and Probability Analysis - 256-QAM and Rank Indicator = 3
  • Figure 33. Performance Gain and Probability Analysis - 256-QAM and Rank Indicator = 3 (Limited)
  • Figure 34. Geo Plot of Rank Indicator Reports - Best Buy S7
  • Figure 35. Geo Plot of Rank Indicator Reports - T-Mobile S7
  • Figure 36. Physical Layer Throughput Comparison
  • Figure 37. Physical Layer Throughput Cumulative Distribution
  • Figure 38. Physical Layer Throughput Versus RSRP
  • Figure 39. Rank Indicator Reports Versus RSRP
  • Figure 40. Performance Gain and Probability Analysis - 256-QAM and Rank Indicator = 3
  • Figure 41. Performance Gain and Probability Analysis - 256-QAM and Rank Indicator = 3
  • Figure 42. Power Consumption - by scenario
  • Figure 43. Physical Layer Throughput - by scenario
  • Figure 44. Total Power Consumption Normalized to Physical Layer Throughput - by scenario
  • Figure 45. Geo Plot of Uplink 64-QAM Modulation
  • Figure 46. Average Uplink Data Rate
  • Figure 47. Distribution of Uplink Modulation Schemes
  • Figure 48. Distribution of Frequency Band
  • Figure 49. XCAL-M in Action