Optimising Small Cells Architectures for In-Building Solutions

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Presented by NEC in the Smallcells Americas event. This actually discusses all the inbuilding scenarios which also includes Spider Cloud product. There was news recent tie up between NEC and Spider cloud.

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Optimising Small Cells Architectures for In-Building Solutions

  1. 1. Optimising Small Cells Architecturesfor In-Building Solutions Small Cells. Made Easy
  2. 2. Traditional IBS - Distributed Antenna Systems CompaniesActive DAS ▐ TE Connectivity Passive DAS ▐ Commscope ▐ Powerwave ▐ Coomba ▐ SolidTech ▐ Shyam ▐ Corning ▐ Zinwave ▐ Many others Page 2
  3. 3. DAS Systems: Installation Elements ▐ 176U’s of equipment (4 full racks) ▐ Specialized telecom power, space, and cooling requirements Components Active DAS Passive DAS Components A A Backhaul A Base Duplexers / RF Splitters A Stations Diplexers / Couplers A Power A A Page 3
  4. 4. DAS OPEX: Example of a typical Indoor NodeB  Power Consumption of indoor NodeB = 2.9kW  Heat Dissipation = 5.5kW  Total Power = 8.4kW  Cost of Power = 8400 W x 24hrs x 7days x 52 wks x $0.20 (cost per kWh) = $15,000 annually  And one other thing… Page 4
  5. 5. Stand-alone Small Cell solutions ▐ Work very effectively on their own or in small numbers  Provide good coverage and capacity in SoHo and small enterprise environments  Cheap and simple to install – typically either self-install or ‘one touch’ installation by MNO technician  PoE (Power over Ethernet) so no separate power supply • Ideal for installation in ceilings, etc. MNO Gateway IP Network and Core Page 5
  6. 6. SON-based Small Cell solutions for SME ▐ Ideally suited for SME deployments  Self configuring and self- optimizing  Small cells manage SON configuration and continual optimisation between themselves  Hard handover for users moving between cells  Typically up to approx. 10 cells / few hundred users  Also PoE MNO Gateway IP Network and Core Page 6
  7. 7. The ‘DAS Gap’ DAS >1000 Users (>10k m2) Alternative No other viable solution Solution?Managed Small Cell 50-250 Users (500-5,000 m2) GridsSingle Small Cell Up to 50 employees (< 500 m2) Page 7 7
  8. 8. An alternative Small Cell architecture… ▐ Centralised, enterprise-based controller gives a number of benefits  Scalable SON – up to thousands of users  Soft handover so better KPIs  Significant backhaul bandwidth reduction  Extra enterprise-grade services can be run locally  WiFi can be added and managed from the central controller MNO Gateway  Uses existing building IP Network and Core Ethernet – no new network required – and PoE Page 8
  9. 9. Each Building Offers Multiple Opportunities New office tower. High-efficiency windows = no cellular penetration Ground floor retail space. Open atrium, heavy footfall Law practice. 10 partners, 109 clerks & administrative staff…one IT manager Financial services company. Six storeys, 600 employees Building Overview • 20 Storeys, dense urban setting • Poor 3G signal • Multiple tenants (retail & office) Page 9
  10. 10. OPEX: Comparative Large Enterprise SON Power Consumption of Central Node = .2kW Power Consumption of Radio Node = .009kW Total Power (CN +16RN) = 0.344kW Cost of Power = .344 kW x 24hrs x 7days x 52 wks x €.20 (cost per kWh) = €600 annually Page 10
  11. 11. Enterprise Small Cell Solutions Large Enterprise Grid Grid Standalone MediumSmall Enterprises Enterprises Large Enterprises Choosing the right product in the medium enterprise segment is a case-by-case assessment which will depend on the site size, topology, traffic template, number of users, available backhauling, additional services required, etc. Page 11
  12. 12. Enterprise Small Cell Solutions Large Enterprise Grid Grid Standalone MediumSmall Enterprises Enterprises Large Enterprises Small Enterprises Medium Enterprises Large Enterprises < 500 m2 500 – 5,000 m2 > 5000 m2 < 50 active users 50 – 500 active users > 200 active users Standalone Small Cell Grid: 2 – 10 Cells Large Enterprise Grid: > 8 Cells Page 12

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