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Base Station Antenna needs for the 5G RAN

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Presented by David Barker, Quintel Technology at Cambridge Wireless event Radio technology for 5G – making it work

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Base Station Antenna needs for the 5G RAN

  1. 1. 18th September 2018 David Barker CTO Base Station Antenna considerations for 5G
  2. 2. Copyright © 2018 Quintel. All rights reserved. 2 Where we started from (2005) 3’s Base Station Vodafone’s Base Station Quintel Combiner Base Unit O2 Cabinet Quintel Antennas QinetiQ company era. - 5x3G Ops in 1xAntenna - Ind. Tilt per Operator - Large Combiner Unit, but… - Avoided site redevelopment -Disruptive idea but very complex Business Model. -We don’t do these anymore -Very different company -We value these early years and customers
  3. 3. Copyright © 2018 Quintel. All rights reserved. 3 Where we are today Independent Tilt per Band Maximum Service Optimization Optimized SPR & C/I Best Quality Smallest Form Factor / Lowest Wind-loading • Base Station Antenna Supplier to T1 US Operators • HQ in Rochester, NY, USA • R&D in San Jose, CA • Acquired by/merged with Cirtek – Aug 2017 • 17K Antennas 2017. 50% Growth YoY since 2013. • Always adding innovation to our products • Design for Manufacture and Deployment • Thought leadership and value-add consulting Leaders in High-Value, Multiport Antennas 6 Ports 12 Ports8 Ports 10 Ports 45 Deg HBW
  4. 4. Copyright © 2018 Quintel. All rights reserved. 4 Antennas K, H,& M Worst Interference Antenna P Best Interference Suppression Antenna F Best Coverage Antenna J Worst Coverage T1 Operators Have Verified Quintel’s Antenna Performance Comparison of 13 Vendors 8’ 6’ 8’ 6’ 8’ 8’ 6’ 6’ 8’ 6’ 8’ 6’ 8’ 8’ 6’ 8’ 6’ 8’ 8’ 6’ 6’ 8’ 6’ 8’ 6’ 8’ BetterInterferenceSuppression Better In-Cell Coverage (Gain) Optimized for Radiation Patterns Best performing antennas are Quintel (8ft & 6ft) Poorest performing antennas are from Vendors H, K and M Best performing antennas are toward upper right Overlap regions causes reduced C/I Vendor M C/I 25dB -1dB >30% Capacity Increase on Average
  5. 5. Copyright © 2018 Quintel. All rights reserved. 5 Innovation for Deployment Optimized Wind Loading Antennas have a profile designed to minimize drag. Simulations and now wind tunnel tests have demonstrated this Highly Optimized Frontal Wind Loading Hurricane Maria, Puerto Rico Our Antennas held out exceptionally well. Credit to Mounts, Brackets, Integrity and Wind-Load of Antennas.
  6. 6. Copyright © 2018 Quintel. All rights reserved. 6 A brief history of the Base Station Antenna 1986 1992 1998 2006 2012 2018 G900 G900 G900 G1800 G900 G1800 U2100 + RET G900 U900 G1800 L1800 U2100 All RET L800 2T2R G900 U900 L1800 4T4R U2100 L2600 4T4R All RET
  7. 7. Copyright © 2018 Quintel. All rights reserved. 7 10-Port US Operator Example 850 B5 • L700 and L850 4T4R • L700 4T4R • CDMA850 • L1900 4T4R • L2100 4T4R • L2100 4T4R (AWS3) • 3x Positions • As above, but also • Independent Tilt for L700 & L850 • 5G/NR850 4T4R • 5G mMIMO Antenna – Re-farm 2GHz: 1900 or AWS – Possible 3.7-4.2GHz – Both 2GHz and 4GHz • 3x Positions 6-Port 2018 2021 6-Port 6-Port AWS3700/850 B13/B5 AWS1 B66 1900 B25 6-Port 700/850 B13/B5 AWS1 B66 1900 B25 AWS3 B66 NR1900 MassiveMIMO
  8. 8. Copyright © 2018 Quintel. All rights reserved. 8 nTnR 8T8R Passive 16T16R AAS 32T32R AAS 64T64R AAS Morecomplexity WiderDistributionofUE’sinElevationPlane
  9. 9. Copyright © 2018 Quintel. All rights reserved. 9 US Passive Small Cell Variants for 4G/5G
  10. 10. Copyright © 2018 Quintel. All rights reserved. 10 Small Cells Operator owns everything Operator owns site Operator owns all hardware Op leases site from CCI Operator owns active hardware Op leases site, Antenna and Fiber from CCI Each Operator owns active hardware Each Op leases site, Antenna and Fiber from CCI Operator Host Only Operator Host Lease only Neutral Host Single Op Neutral Host Multi-Operator 1 2 3 4
  11. 11. Copyright © 2018 Quintel. All rights reserved. 11 Antenna Category Fragmentation PassiveAAS Macro Cell N/A Passive+AAS Small Cell mmWave Not considering Indoor DAS and Speciality Solutions (Multi-Sector, etc) Multi-Band Single-Band Single-Band AAS Multi-Band Passive Open Interfaces, e-CPRI and ORAN vital for evolving eco-system
  12. 12. Copyright © 2018 Quintel. All rights reserved. 12 The Future of the Base Station Antenna in 5G 2018 2024 2030 L800 2T2R G900 U900 L1800 4T4R U2100 L2600 4T4R NR700 4T4R L800 4T4R L900 4T4R L1500 4T L1800 4T4R L2100 4T4R L2600 4T4R NR3500 16T16R mMIMO NR700 16T16R NR800 16T16R NR900 16T16R L800 8T8R NR1500 32T NR1800 64T64R NR2100 64T64R NR2600 64T64R L1800 16T16R NR3500 64T64R mMIMO • Continued innovation and development for Passive Antennas for next few years • Complex multi-array environments – Many challenges – PIM, Isolation, beam integrity – Size, weight, wind-load • Massive MIMO AAS predominately Single Band (2300, 2600, 3500). AAS needs to meet TCO targets. • Evolution to 2030 takes us to using all of the aperture for all of the bands • In 2030 there still could be a need for hybrid Passive and AAS arrays • Will Open RAN interfaces prevail? Will OEM’s take over the antenna function. New players (e.g. Blue Danube), New partnerships?
  13. 13. Copyright © 2018 Quintel. All rights reserved. 13 Some Market Predictions Source: Mobile Experts CBRS Small Cell Growth IA/AAS Penetration Source: ABI Research MIMO Installed by Platform Source: ABI Research Source: ABI Research Annual Antenna capex
  14. 14. Copyright © 2018 Quintel. All rights reserved. 14 Antenna Design Innovations Optimized Rooftop Antenna No Rooftop Diffraction With Rooftop Diffraction Conventional Antenna Optimal for Rooftop
  15. 15. Copyright © 2018 Quintel. All rights reserved. 15 PIM Interference Engineering Bidding for Optimal new spectrum blocks Identifying Optimal RF combining options (existing Spectrum) Troubleshooting Interference issues (existing Spectrum) Quintel PIM Tool can be used for many applications; Strategic to Tactical to Troubleshooting
  16. 16. Copyright © 2018 Quintel. All rights reserved. 16 Massive MIMO • mmWave propagation needs classic beamforming for raw gain and radio channel is more reflective rather than dispersive. • Massive MIMO with TDD at sub 6GHz Spectrum allows higher order MIMO to be much more efficiently exploited • Massive MIMO can be one of various array structures or distributed, or indeed a composite Precoding 96 96 H1,1 H1,96 Massive MIMO for Next Generation Wireless Systems; IEEE Communications Magazine, Feb 2014 • Several 100’s Antennas MRC/MRT is best • Many 10’s of Antennas ZF/MMSE is best
  17. 17. Copyright © 2018 Quintel. All rights reserved. 17 MIMO Techniques Classic Array with ZF Beamforming Example above illustrates that data intended for one User can be precoded such that 9 Nulls can also be created where the other (co-channel) users are. Tx Precoding for UE1 means UE2-UE10 will be in deep nulls Tx Precoding for UE2 means UE1,3-UE10 will be in deep nulls -50dBm -100dBm
  18. 18. Copyright © 2018 Quintel. All rights reserved. 18 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 -10-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 MIMO Techniques Distributed Massive MIMO – 5.5G? Tx Precoding for UE1 means UE2-UE10 will be in deep nulls -50dBm -100dBm 5m2 Distributed Massive MIMO produces highly interferometric radiation patterns. ZF Beamforming would also ensure UE’s are in nulls.
  19. 19. Copyright © 2018 Quintel. All rights reserved. 19 How cell optimization has evolved Inter-cell Interference Increases 2004 2016 2022 2028 SON ICIC eICIC CoMPMove to LTE C-RAN Exploiting Inter-cell Interference 25dB -5dB C/I 2010 Inter-cell Interference Minimized Radio Planning Tilt Settings ACP As more cells are added, more interference seen (sub-6GHz) C-RAN architecture provides a means of interference suppression or coherent signal addition; the notion of the cell blurs or even disappears. C-RAN needs significant fronthaul capacity
  20. 20. Copyright © 2018 Quintel. All rights reserved. 20 When wireless is pushed to the limit the answer isn’t more of the same The answer is more innovation

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