Telco evangelist 23 jan 2013


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High level introduction to LTE Metrocells including reasons why, where/when deployed, factors to consider etc. Taster for the fully day Metrocell Masterclass - see

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Telco evangelist 23 jan 2013

  1. 1. LTE Metrocells Telco Evangelist 23 January 2013 London
  2. 2. About ThinkSmallCell• David Chambers, B.Sc. • Metrocell MasterClass (Hons), MIET, C.Eng, “Become a Metrocell Expert Dip. M., MCIM, in one day” • 3 independent industry Chartered Marketer experts• Founded Sept 2007 as • Choice of 2 locations ThinkFemtocell – 21 Feb: IET, Savoy Place, London• Independent news, – 21 March: Homerton analysis, insight into Conference Centre, Cambridge Small Cells • Sign up for our free monthly newsletter on all aspects of Small Cells at
  3. 3. Agenda• Why small cells?• What are LTE Small Cells?• Where and when LTE metrocells will be introduced• Metrocell Backhaul• Technical and practical constraints• Potential market size
  4. 4. Coopers Law – Looking back• The number of voice or data conversations which can be conducted by all useful radio spectrum within the same area.• Doubled every 2.5 years for 100 years Of 1 million times improvement in last 45 years • 25x additional spectrum • 25x spectral efficiency • 1600x spatial efficiency (i.e. smaller cell sizes)
  5. 5. Cooper’s Law – Looking ahead • 3GPP workshop[1] on how best to grow capacity 1000x capacity increase can be achieved by: – 3x additional spectrum – 6x spectral efficiency – 56x spatial efficiency (i.e. small cells)[1] June 2012:
  6. 6. Differing scope of small cells terms Small Cells ORFemtocells Small CellsResidential Enterprise Metrocell Rural
  7. 7. Different scope of small cells 3G 4G/LTE Unlicensed Licensed Licensed Spectrum Spectrum SpectrumPlanned 3G LTE Carrier(location pre- Metrocells Metrocells Wi-Fidetermined prior to 3G Rural LTE Ruralsite build) Small cells Small cells Enterprise EnterpriseUnplanned Wi-Fi Femtocells(location unknownuntil operational) Residential Residential Femtocells Wi-Fi
  8. 8. Typical Metrocell Packaging *Alcatel-Lucent 9364 3G Metro Cell Outdoor *Tecom/Ubiquisys *Ubiquisys G7 Metrocell Indoor 3G/LTE*Huawei Atomcell metrocell
  9. 9. Modular Design Height: 296 mm (11.6 in.) Width: 124 mm (4.9 in.) Depth: 118 mm (4.6 in.) Volume: 4.3 l (1.1 gal) ~3.5 kg (7.7 lb) Power: 40W Capacity: 32 concurrent voice/data sessions*Alcatel-Lucent 9764 3G Metro Cell Outdoor
  10. 10. Coloured to match: Cameleon AtomCell Invisible Design :*Huawei Atomcell
  11. 11. Street Layout
  12. 12. The Mobile Network Architecture including LTE Interfaces 2G 3G Data (IP) Voice (PSTN) Network Network 2.5G 4G GGSN PDN-GW S5 Gn S11 Gs Core S4Network MME S-GW SGSN MSC S3 Iu-ps Iu-cs S1-MME S1-U Iur RNC RNC Access X2Network Iub eNodeB’s Node B’s Air LTE-UuInterface Uu UE UE
  13. 13. SKT LTE Small Cell Architecture Typical Femtocell Gateway specifications: • Up to 100K LTE small cells per gateway • Up to 3.8Gbit/s total traffic capacitySource: SK Telecom June 2012
  14. 14. System Engineering Issues• Timing/Sync – LTE Advanced requires Phase & Frequency sync• Self-Organising – Self-Configuration – Self-Optimisation – Self-Healing• Beam forming – Tailored radiation footprint to reduce macrocell interference
  15. 15. Choice of Spectrum• Higher frequencies • Shared vs – Shorter range Dedicated – Lower in-building penetration Spectrum – Less interference Macrocell Metrocell700 800 900 1800 1900 2100 2300 2600 3500MHz MHz MHz MHz MHz MHz MHz MHz MHz 10x Spectrum Pricing Differential 1x
  16. 16. Backhaul Capacity It’s debatable how much required - Typical might be: 30-60Mbps per small cell 1Gbps per cluster including macrocell 10Gbps major concentration points*Source: NGMN BackhaulRequirements 2012
  17. 17. Backhaul Considerations• Hot-Spot or Not-Spot• Point-to-Point vs Point-to-Multipoint• Reliability vs Availability• Line-of-Sight or NLoS• Capex vs Opex• Installer Skillset
  18. 18. Backhaul Wireless Spectrum 800MHz 6GHz 57GHz 64GHz 85GHz Optical 600THz TV White Microwave 60GHz Space Non Line-of-Sight E-BandDynamic & Unlicenced or Licenced Lightly Lightly Licenced Licenced Unlicenced
  19. 19. SK Telecom LTE small cell roadmap
  20. 20. Deployment Issues• Three main concerns – Site acquisition – Power – Backhaul• But also – Planning tools to identify ideal site locations – Skill set for technicians to install equipment – Scalability of planning, deployment processes – Reducing future site visits
  21. 21. New commercial models• Metrocell Hosting – Virgin UK – COLT – BT• Benefits – Councils/landlords deal with few suppliers – Operators outsource to companies with matching skillsets and fieldforce
  22. 22. Forecast Growth*Source: Rethink Research
  23. 23. Metrocell Masterclass• Become a Metrocell Expert in one day – 21 Feb 2013: The IET, Savoy Place, The Strand, LONDON – 21 Mar 2013: Homerton Conference Centre, CAMBRIDGE• Learn from three small cell experts – David Chambers/Zahid Ghadialy/Justin Paul• Full details and online store – –• Discounts for early booking & 3 for 2 offer
  24. 24. Questions? BackupDavid Chambers