10 Times Beyond LTE-A
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10 Times Beyond LTE-A

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2021 TID Networking Summit ...

2021 TID Networking Summit
15 December 2011

More in: Technology , Business
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  • 1. 10 Times Beyond LTE-ABusiness Case, Technologies, ChallengesMischa DohlerHead of [IQe] @ CTTCBarcelona, Spain2021 TID Networking Summit15 December 2011
  • 2. IMT-Advanced versus Reality  IMT-A capacity targets [ITU-R M.2133]:  2.2b/s/Hz for downlink and 1.4b/s/Hz for uplink in urban deployment  supported rate is thus maximal 100Mbps/km2 (500m cell size; 40MHz)  Capacity needs (reality check):  peak density of 8,000 people/Km2  of which only 10% subscribe to the broadband service  of which only 20% require access at the same time City Average People/Km2  each requiring 5Mbps Athens 5,400 Madrid 5,200 London 5,100 Barcelona 4,850 8,000 X 10% X 20% X 5Mbps = 800 Mbps/Km2 Warsaw 4,300 Naples 4,100 Berlin 3,750 Paris 3,550© 2011 Mischa Dohler 2/18
  • 3. Air Interface versus Architecture  Increase in capacity over past decades:  Martin Cooper: doubled every 30 months over past 100 years  overall: million-fold increase in capacity since 1957  Breakdown of these gains:  5 x PHY; 25 x spectrum; 1600 x reduced cells, 5 x rest Reduced Cells MHz  Breakdown of (estimated) cost: Reduced Cells MHz PHY© 2011 Mischa Dohler 3/18
  • 4. Revenue versus Infrastructure Cost  Data support jeopardizes business prospects:  ½ of CAPEX & ¼ of OPEX is must to be profitable:© 2011 Mischa Dohler 4/18
  • 5. BuNGee – Excellent Byte/€ Ratio  BuNGee - Beyond Next Generation Mobile Broadband:  Project Coordinator: Alvarion, Israel  Public Website: http://www.ict-bungee.eu/  Duration: Jan 2010 – June 2012  Scheme: STREP  Innovative points of the project:  few high capacity above-rooftop Hub-BSs (HBS)  many below-rooftop access BSs (ABS)  very cost efficient 60GHz backhauling technology  system-aware PHY techniques (networked MIMO, etc)  joint design of backhaul and access networks, using heterogeneous radio elements, licensed and licensed-exempt spectrum, etc.  design of a data and control plane protocol suite which facilitates autonomous operation by means of a complete self-organizing networking paradigm© 2011 Mischa Dohler 5/18
  • 6. 1Gbps/km2 Architecture [1/2]  Above-rooftop HBS serving many below-rooftop ABSs: HBS ABS ABS Polarization 1 Polarization 2 ABS© 2011 Mischa Dohler 6/18
  • 7. 1Gbps/km2 Architecture [2/2]  Cost-efficient mixture of L/LE/60GHz wireless technologies:© 2011 Mischa Dohler 7/18
  • 8. Deployment Possibilities  Various planning and deployment possibilities: ABS a a a a b1 b a ABS a a a a b b1 a ABS b a a a a b b b b b1 a a a a a a HBS-LE b a a a ABS ABS a a ABS ABS street ABS ABS b b1 b a a b b1 a b1 b1 b b1 b1 b b b b a a a a a a a a a a b1 a a HBS-L ABS b b Roof- a a b top a a b b b b1 a b ABS ABS a a a a = a ABS b ABS a a a a© 2011 Mischa Dohler 8/18
  • 9. Management: Cognition & Docition  From cognitive to docitive networking paradigms:  cognition: “system which is working under conditions it was not designed for”  docition: “teaching” between expert nodes to accelerate learning/cognition  result: truly autonomous SON with quick convergence© 2011 Mischa Dohler 9/18
  • 10. 1Gbps/km2 Simulation Scenario  Grid Architecture:  mimic Barcelona layout  per sector 4 ABSs, 1 user each  simulating 1 sector only  Aggressive Frequency Reuse:  access link and self-backhaul communicate simultaneously  access link and self-backhaul use the same band  Self-Organizing Network:  adaptive and distributed power and interference control at the ABS© 2011 Mischa Dohler 10/18
  • 11. 1Gbps/km2 Simulation Results  40 MHz bandwidth & 4 beams achieve 1Gbps/km2 capacity density: 8 7 6 5 4© 2011 Mischa Dohler 11/18
  • 12. Docition Improves Convergence  Convergence speed improves by order of magnitude from 20,000 (cognitive) to 4,000 (docitive) iterations:© 2011 Mischa Dohler 12/18
  • 13. From Theory to Prototyping [1/3]  COBHAM’s high-capacity multi-beam Hub BS:© 2011 Mischa Dohler 13/18
  • 14. From Theory to Prototyping [2/3]  ALVARION’s SISO & CTTC’s MIMO Access BSs:© 2011 Mischa Dohler 14/18
  • 15. From Theory to Prototyping [3/3]  SIKLU’s cost-efficient 60GHz backhaul technology:© 2011 Mischa Dohler 15/18
  • 16. From Prototyping to Standards  ETSI TC BRAN, TR 101 534:  Alvarion, CTTC, Polska Telefonia Cyfrowa, Siklu, Thales  "Very high capacity density BWA networks; System architecture, economic model and technical requirements“  next audio: Tuesday 20 December 2011, 2pm CET (please join!)© 2011 Mischa Dohler 16/18
  • 17. From Standards to Practice  Tel Aviv and Barcelona live deployments in 2012: Legend: HBS ABS Telefónica interested?© 2011 Mischa Dohler 17/18
  • 18. Concluding Remarks  Operator’s capacity challenge today and for next years:  capacity requirements are far off reality  except for order-of-magnitude PHY, rather work on architecture  infrastructure cost is major driver since ROI margins tighten  management becomes major problem, SON is a must  1Gbps/Km2 architecture with the following properties...  … LTE(-A) & WiMAX-agnostic architecture  ... anytime and everywhere in urban environments  … cost-efficient to operators, service providers, users  … spectrally efficient using both licensed and exempt bands  ... autonomous operation facilitating deploy & forget experience© 2011 Mischa Dohler 18/18