Radio Design Webinar: Optimising Your 700 MHz Deployments
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This document provides an overview of 700MHz spectrum including its commercial status, main frequencies by region, and why it is important for 5G networks. Key points include: - 700MHz spectrum is being cleared for mobile use in many regions to meet targets by 2020-2027 for coverage including rural areas. - It can provide widespread coverage due to favorable propagation characteristics and is essential for applications requiring ultra-reliable communications like IoT. - Technical challenges in deploying 5G include adding new spectrum and radios to existing sites which risks exceeding space and wind loading limits. Solutions like antenna combiners and remote radio heads help overcome these challenges cost effectively.
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Radio Design Webinar: Optimising Your 700 MHz Deployments
- 1. 700MHz Overview November 2020 Commercial Status Why 700MHz?
- 2. Company Proprietary and Confidential 700MHz Band Status Main Frequencies by Region EU Member States (+ some neighbours) • Committed to clearing 700MHz for mobile use by June 2020 • or +2 years with justification • UK DCMS Press release 03/09/2020: “Major programme clears 700MHz spectrum of radio waves for 5G and rural mobile coverage” • Uplink 703 – 733, Downlink 758 – 788 • ASEAN/APAC (+ many South & Central Americas) • APT700 (B28), FDD • Uplink 703 – 748, Downlink 758-803 • USA & Canada: US700 (B12, B29, B13) + US600 • Mix of FDD & SDL/TDD • Uplink 698-716, Downlink 728-746 • Downlink 746-775 , Uplink 776-805 • SDL/TDD 716-728 • FirstNet (911, etc) 758-768 + 788-798 • Currently >>3k LTE capable devices support 700MHz • Source GSA, LTE Ecosystem Report, Status Update October 2020 ITU Region Number of Countries 700MHz Licensed or auction scheduled 1 - Europe 50 25 1 - MEA 32 4 2 - Americas 28 16 3 - APAC 28 10 Totals 138 55 Source: spectrummonitoring.com Note: ITU has 193 member states
- 3. enhanced Mobile Broadband • Throughput • Capacity • Gigabytes in a second Mission Critical Communications • Ultra Reliable • Low Latency massive Machine Type Communications • Large numbers – 1 million/km2 • Low power & cost • Hard to reach environments Autonomous Cars Remote Surgery Cloud Gaming AR/VR UAVs Industrial IoT Edge Intelligence Smart Cities mMTC URLLC eMBB Smart Home IMT 2020 Network Goals Emergency Services Voice
- 4. Company Proprietary and Confidential Why 700MHz? • 5G needs spectrum across low, mid and high frequencies to support all use cases • Low-bands (sub-1 GHz) • support widespread coverage • extend 4G/5G to rural environments • essential for Ultra Reliable communication • support Internet of Things (IoT)/mMTC services • Coverage, In-building penetration, low device power consumption (longer battery life) • 5G services will struggle to reach beyond urban centres and deep inside buildings without this spectrum • Moderate investment to overlay on existing 800/850/900 MHz grids Propagation Loss vs Frequency • Dense Urban Environment • Antenna Height 30m
- 5. Company Proprietary and Confidential T Mobile USA Nationwide 5G – 600MHz
- 6. 700MHz Overview November 2020 Technical Challenges And Solutions
- 7. Company Proprietary and Confidential 5G RAN Deployment Challenges • MNOs want to deploy their 5G networks quickly and cost-effectively • Tough choices when considering how to overlay the new 5G spectrum onto the legacy networks • New sites offer the best technical solution but... – Expensive – Slow to deploy • Upgrading existing sites is fast and cost effective but… – Space is limited – Tower strength is a concern • Radio Design’s solutions support fast and cost- effective 5G RAN deployment
- 8. Company Proprietary and Confidential Case Study 1: Adding 700 MHz Radio Low Band High Band 800 RRH 2x2 700 RRH 2x2 900 BTS 2x2 • Antenna upgrade to accommodate 700 MHz RRH Increased cost and wind loading Low Band High Band 800 RRH 2x2 900 BTS 2x2 • Existing Site No spare low band ports High band radios not shown for clarity 700 RRH 2x2 Low Band High Band 800 RRH 2x2 900 BTS 2x2 RD0696 700-800 / 900 Combiner • Antenna sharing using Combiner No need to replace antenna Combiner is small, lightweight and low cost ✓ Lower cost ✓ Less disruption ✓ No compromise on performance
- 9. Company Proprietary and Confidential Case Study 2: Upgrading to Triple Band Radio Low Band High Band 800 RRH 2x2 900 BTS 2x2 • Existing Site • Addition of 5G Radios Low Band High Band 700/800/900 Triple Band RRH 800 3.5 GHz mMIMO Panel Large mMIMO panel limits available space at the tower top Feeder losses limit uplink performance No space for large, heavy triple band RRH at the tower top 800 700 900 700 900 Low Band High Band 700/800/900 Triple Band RRH 800 800 700 900 700 900 3.5 GHz mMIMO Panel RD0819 700 / 900 Dual Band TMA • Use of TMA to restore uplink performance Dual Band TMA is small, lightweight and low cost Uplink performance is equivalent to RRH installed next to antenna ✓ Eases congestion at the tower top ✓ No compromise on performance ✓ Protects against feeder PIM ✓ Improves UL noise figure
- 10. Company Proprietary and Confidential 700 MHz Combiners • Dual Diplexer • 700-800 / 900 MHz • Available with Auto BypassTM • Optional AISG LOC • Dual Diplexer • 700 / 800-900 MHz • Available with Auto BypassTM • Dual Diplexer • 400-900 / 1400- 2600 MHz • Ultra low loss ~0.1 dB • Quadruplexer • 700-800 / 900 / 1800 / 2100- 2600 MHz
- 11. Company Proprietary and Confidential 700 MHz TMAs • Single band 700 MHz – Noise figure <1.3 dB – AISG compliant RET port • Dual band 700 / 900 MHz – Available with combined or separate ANT ports – RET port • Dual band 700 / 800 MHz – Downlink IL < 0.25 dB – Excellent PIM performance
- 12. © 2020 Keima. All rights reserved. Keima – Overture Strategic Planning Iris Barcia, COO, Keima Radio Design Webinar - 19th Nov 2020 700 MHz Spectrum What does it bring to the network?
- 13. © 2020 Keima. All rights reserved. Reston, VA Cardiff, UK Madrid, SP Deployable Business Case * https://www.5gamericas.org/wp-content/uploads/2019/10/SCF-Precision-Planning-WP-FINAL-1.pdf© 2020 Keima. All rights reserved. Keima - Overture
- 14. © 2020 Keima. All rights reserved.© 2020 Keima. All rights reserved. < 6 GHz Comparison • Similar EIRP • Similar Antenna Type • 700 MHz – 2100 MHz – 3.5 GHz 700 MHz Propagation Comparison
- 15. © 2020 Keima. All rights reserved. Tuned Propagation Model 2100 MHz © 2020 Keima. All rights reserved.
- 16. © 2020 Keima. All rights reserved. Tuned Propagation Model 700 MHz © 2020 Keima. All rights reserved.
- 17. © 2020 Keima. All rights reserved. Low densification 700 MHz ~ 98% area covered Low densification 2100 MHz ~ 89% area covered Low densification 3600 MHz Real network distribution, LA - Rural © 2020 Keima. All rights reserved.
- 18. © 2020 Keima. All rights reserved. High densification 700 MHz OVERSHOOT High densification 2100 MHz Downtown LA - HetNet Downtown LA - Top buildings © 2020 Keima. All rights reserved.
- 19. © 2020 Keima. All rights reserved. Optimal Network Design - Coverage and Capacity Complex Multi-objective Function Example from recent Austrian Auction - Sep 2020: 700 MHz licences will include coverage of 80% of 2,100 underserved communities with download speeds of 30 Mbps and 3 Mbps for upload by 2027, and 90% of federal and state roads should get at least 10 Mbps for downloads and 1 Mbps for uploads. TCO = f(CSE, Power, Backhaul, Site Configuration, Demand Projections, …) Regulations and Targets Technology Economics
- 20. © 2020 Keima. All rights reserved. LA HetNet FR1 + FR2 © 2020 Keima. All rights reserved.
- 21. © 2020 Keima. All rights reserved. Keima - Overture Thank you