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5G : 지상 최대의 쇼(제13권) - 건초 더미에서 바늘 찾기(T-Mobile 밴드 n71 5G NR 스탠드얼론[SA] 네트워크에 초점을 맞춘 5G 벤치마크 조사)

5G: The Greatest Show on Earth - Volume 13, Needle in a Haystack (5G Benchmark Study, with a Focus on the T-Mobile Band n71 5G NR Standalone [SA] Network)

리서치사 Signals Research Group
발행일 2020년 10월 상품 코드 963230
페이지 정보 영문 54 Pages
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US $ 1,195 ₩ 1,335,000 PDF (Global License)


5G : 지상 최대의 쇼(제13권) - 건초 더미에서 바늘 찾기(T-Mobile 밴드 n71 5G NR 스탠드얼론[SA] 네트워크에 초점을 맞춘 5G 벤치마크 조사) 5G: The Greatest Show on Earth - Volume 13, Needle in a Haystack (5G Benchmark Study, with a Focus on the T-Mobile Band n71 5G NR Standalone [SA] Network)
발행일 : 2020년 10월 페이지 정보 : 영문 54 Pages

본 상품은 영문 자료로 한글과 영문목차에 불일치하는 내용이 있을 경우 영문을 우선합니다. 정확한 검토를 위해 영문목차를 참고해주시기 바랍니다.

5G : 지상 최대의 쇼 제13권으로, T-Mobile Band n71 5G NR 스탠드얼론(SA) 네트워크와 오퍼레이터의 5G NR 비스탠드얼론(NSA) 네트워크의 비교에 초점을 맞추고 있습니다. 달라스 지역 뿐만 아니라 미네소타주와 위스콘신주의 농촌 지역에서도 테스트를 실시하고 있습니다.

목차

제1장 주요 요약

제2장 중요한 소견

제3장 지연시간-관련 메트릭스

제4장 5G NR SA 커버리지와 실적

  • 위스콘신
  • 미네소타

제5장 테스트 조사 방법

제6장 결론

제7장 부록

그림과 표 색인

KSM 20.10.19

SRG just completed its thirteenth 5G benchmark study, this time with a focus on the T-Mobile Band n71 5G NR Standalone (SA) network and how it compares with the operator's 5G NR Non-Standalone (NSA) network. We tested in the Dallas area, as well as rural areas in Minnesota and Wisconsin.

Highlights of the Report include the following:

  • 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 most of our testing with two smartphones operating in parallel. One smartphone (S20 Ultra) supported SA and the other smartphone (McLaren OnePlus or Note 10 Plus) only supported NSA. In some tests we forced the S20 Ultra to remain in SA mode even though NSA was available. We logged chipset diagnostic messages and captured scanner data to independently determine LTE and 5G NR RF characteristics.
  • Improved Coverage and Performance. Although it wasn't easy to find locations where the smartphone used [needed] SA, in those regions, we observed 5G NR coverage which didn't exist with the NSA-capable smartphone. We also documented meaningful increases in end user data speeds, even in cases when the NSA smartphone was using both LTE and 5G NR.
  • Latency Results were Mixed. We measured handover times, acquisition times, RTT and web page load times. The results were mixed, at best.
  • Related Challenges. PDCP packet losses, especially with poor LTE coverage remain a big problem that isn't specific to any operator or vendor. Furthermore, we continue to observe smartphones camping on a low-band LTE frequency (i.e., Band 12) instead of leveraging 5G NR in another low-band frequency. We are very familiar with the airplane mode feature which can trigger a different response and the desired outcome.
  • Sidebar Study. Because we could, we drove across much of Wisconsin while testing the top three operator networks. AT&T had the fastest network (by far) while the T-Mobile network had the greatest use of 5G NR. We also captured scanner data to look at operator low-/mid-band LTE coverage and 5G NR coverage.

Table of Contents

1.0 Executive Summary

2.0 Key Observations

3.0 Latency-Related Metrics

4.0 5G NR SA Coverage and Performance

  • 4.1. Wisconsin
  • 4.2. Minnesota

5.0 Test Methodology

6.0 Final Thoughts

7.0 Appendix

Index of Figures & Tables

  • Figure 1. Average LTE and 5G NR Throughput - by operator
  • Figure 2. Distribution of Total Throughput - by operator
  • Figure 3. Distribution of Aggregate LTE Channel Bandwidth - by operator
  • Figure 4. Utilization of LTE Carrier Aggregation Schemes and 5G NR - by operator
  • Figure 5. Latency Round Trip Time (RTT) Results by operator
  • Figure 6. Latency Round Trip Time (RTT) Results by operator
  • Figure 7. Web Page Load Time Results - SA versus NSA by operator
  • Figure 8. Web Page Application Layer Throughput - SA versus NSA
  • Figure 9. Web Page Physical Layer Throughput - NSA
  • Figure 10. Handover Times - 5G NR SA versus 5G NR NSA by operator
  • Figure 11. 5G NR SA Handover Signaling
  • Figure 12. NSA 5G NR PCI Only Handover Signaling
  • Figure 13. NSA 5G NR and LTE PCI Handover Signaling
  • Figure 14. NSA LTE PCI Handover Signaling
  • Figure 15. RRC Connection Times - 5G NR SA versus 5G NR NSA
  • Figure 16. 5G NR NSA Connection Signaling
  • Figure 17. 5G NR SA Connection Signaling
  • Figure 18. T-Mobile Technology Coverage Map
  • Figure 19. T-Mobile Technology Utilization
  • Figure 20. Distribution of T-Mobile Mid-Band LTE RSRP
  • Figure 21. Distribution of T-Mobile Mid-Band LTE SINR
  • Figure 22. Distribution of T-Mobile Low-Band LTE RSRP
  • Figure 23. Distribution of T-Mobile Low-Band LTE SINR
  • Figure 24. Distribution of T-Mobile LTE Primary Carrier - by frequency
  • Figure 25. 5G NR SA versus 5G NR NSA Throughput - Transition 1
  • Figure 26. SA versus NSA RSRP - Transition 1
  • Figure 27. LTE Only to SA Transition - Transition 1
  • Figure 28. PCI 601 5G NR NSA to 5G NR SA and back to 5G NR NSA
  • Figure 29. LTE Only to 5G NR SA Transition - Transition 2
  • Figure 30. USCC LTE to T-Mobile SA Transition
  • Figure 31. USCC LTE to T-Mobile LTE Transition
  • Figure 32. T-Mobile Low-Band LTE Coverage along Drive Route
  • Figure 33. SA PCIs and RSRP - MN
  • Figure 34. NSA PCIs, LTE PCIs and LTE RSRP - MN
  • Figure 35. S20 and McLaren OnePlus Throughput and Mid-band LTE RSRP
  • Figure 36. McLaren OnePlus Throughput and Mid-band LTE RSRP
  • Figure 37. McLaren OnePlus Low-band and Mid-Band LTE RSRP
  • Figure 38. S20 and McLaren Throughput and Mid-band LTE RSRP
  • Figure 39. S20 and McLaren Throughput and Mid-band LTE RSRP
  • Figure 40. SA Extended Coverage - Outbound Trip
  • Figure 41. NSA and SA Utilization, including Mid-Band LTE Coverage - Return Trip
  • Figure 42. SA versus NSA Throughput - Area 1
  • Figure 43. T-Mobile Cell Site Home on the Range
  • Figure 44. SA versus NSA Throughput - Area 2
  • Figure 45. SA versus NSA Throughput - Area 2
  • Figure 46. XCAL-M in Action
  • Figure 47. TSME6 Scanner
  • Figure 48. XCAL-M with TSME6 Scanner Information
  • Figure 49. Umetrix Data Architecture
  • Figure 50. Distribution of T-Mobile Primary Band LTE RSRP
  • Figure 51. Distribution of T-Mobile Primary Band LTE SINR
  • Figure 52. T-Mobile Low-Band LTE Coverage - Wisconsin Drive Route
  • Figure 53. T-Mobile Mid-Band FDD LTE Coverage - Wisconsin Drive Route
  • Figure 54. T-Mobile Mid-Band TDD LTE Coverage I - Wisconsin Drive Route
  • Figure 55. T-Mobile Mid-Band TDD LTE Coverage II - Wisconsin Drive Route
  • Figure 56. Band n71 5G Coverage - Wisconsin Drive Route
  • Figure 57. Band n5 5G Coverage - Wisconsin Drive Route
  • Figure 58. T-Mobile Band n41 5G Coverage - Wisconsin Drive Route
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