Lte asia 2011 s niri


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Lte asia 2011 s niri

  1. 1. Capacity and Coverage in Dense Urban with LTE Small Cells LTE Asia Summit Singapore, 6th - 7th Sep 2011 Prof. Shahram G Niri, Director of Global LTE/SAE Strategy & Solution – NEC Europe
  2. 2. Towards future mobile broadband  More mobile broadband users Capacity • 300 M  3 B users  More smartphones, PDAs & enabled laptops • Today 15% (~500 M)  ~ 75% (2 B) in 2015 • Average data consumption of x20, x100 and x500 of normal phone  More connected devices • M2M (300 M by 2015 and 20 B in 2020)  Growths of social media, m commerce + Web Mobility • More data hungry application, Video centric applications with Traffic ~ 104% annual growths, 60% - 70% traffic will be video, • Billions of hours of social networking Cost Mobile broadband is a reality Gap Exponential mobile traffic growth creates Revenue unprecedented capacity demand Time Cost per bit has to be reduced New innovative services (M2M, Mobile Cloud, Service others) are emerging and are potential revenue streams BUT high performance is a must Communication networks to improve in intelligence, flexibility, automation, resilience, efficiency, speed, security, privacy, latency YET lower delivery cost per bit/per sq kmPage 2 NEC 2011
  3. 3. Capacity crunch is real Petabytes Per Month 8000 7000 6000 50%CAGR x32 5000 CICSO Data Capacity 100% CAGR 4000 Demand 3000 2000 x10 1000 0 2010 2011 2012 2013 2014 2015 Architecture &  10-32 times more data (2010-2015), 100-1000 times Technical Topology (2010-2020) Advances  A Continuous challenge to stay ahead of traffic Off-Loads increase 4  The volume of the capacity increase and the speed More 3 of upgrade are key challenges Spectrum  Other challenges to be dealt with, cost of capacity 2 upgrade, the energy & environment, … 1Page 3 NEC 2011
  4. 4. Capacity solutions 9.00 9 8.00 0.33 X 8 7.00 7 Improvement 6.00 2X bits/symbol 0.5 X 6 5.00 5 4.00 4 3.00 2X 3 2.00 2 1.00 1 0.00 0 BPSK QPSK 8 PSK 16 QAM 64 QAM 256 QAM Modulation Scheme 2X2 2X4 2X8 4X4 4X8 8X8 MIMO Candidate Spectrum (1700MHz) New Spectrum (~400 MHz)  In reality, the performance benefit of higher order MIMO, higher order modulation is far less that than that of theoretical values!  We are reaching the upper limits of spectrum efficiency  New allocation is time consuming, costly and complex Existing Spectrum (~ 600 MHz)  Spectrum is a finite resource, scarce & Government National expensive Authority  Today fragmented and very difficult to harmonize across the regions  Good parts of the spectrum are already gone!Page 4 NEC 2011
  5. 5. Small Cells - Big capacity quickly and cost effectively Off-load will be one of the solutions ∑ help to cope with capacity demand Spectrum ~700MHz ~1400MHz x2 New network topologies and MIMO 2x2 4x4 8x8 deployment strategy offer more gains x2 than new technologies and HWOther tech. 128QAM/256QAM, Coding, Scheduling, CoMP, advance x1.5 Relay, ICIC/eICIC, etc…. Frequency reuse is the key to keep up Traffic Offload x1.25 with exponential increase of traffic in WiFi Femto the future with limited spectrum Others ? availability Small Cells Solutions Maximum Femto to Micro 7.5 x 8000 Petabytes Per Month Micro 7000 x32 6000 50%CAGR Pico 5000 100% CAGR Pico 4000 Metro 3000 2000 x10 Femto 1000 0 Home Enterprise / Hot 2010 2011 2012 2013 2014 2015 Zone Hot Spots Zone Page 5 NEC 2011
  6. 6. What’s a LTE small cell?  Lower power, small form factor, light Fast & Easy weight - > ease of deployment  Lower antenna height, street furniture  Open public access, supports mobility to macro or others SW  Zero foot print, Wall/Poll Mount Ethernet Power AuC DB  No site acquisition necessary (Backhaul) Cable S1/X2  Flexible and fast deployments  Self configuration & one-touch by SON eNB Installation SON: Self -Configuration  Indoor & outdoor installation lBuild eNB on selected site lConnect to EMS lConnect Antennas leNB Authentication  Fan less and air-cooling lConnect Ethernet Cable lSite data installation lConnect Power Cable lAuto inventory  Green & low power consumption lS1/X2 Connection/ setup Site Visit 1 HOUR installation eNB up & Flexible Backhauling Flexible Deployment Electrical Distributed Antenna Cascade Fiber Microwave S1 S1 Wall installation Pole installation Indoor Page 6 NEC 2011
  7. 7. LTE Deployment Options, In-fill or Out-fill In-fill Approach Out-fill Approach Start with 2G/3G upgrade to LTE  Start with LTE small cell hot zone for coverage then use LTE small cells for Capacity then use LTE Macro for capacity and coverage in-fill coverage out-fill 2G/3G Macro 2G/3G Macro LTE Macro 2G/3G Macro LTE Small Cells 2G/3G Macro 2G/3G Macro LTE Macro LTE Small Cells LTE Small Cells LTE Macro 2G/3G/LTE Page 7 NEC 2011
  8. 8. High Performance with LTE Small from Small Cells Performance Benefits Cells VS 3.3x capacity” Macro ISD=500m 3-sectors Micro ISD=200m Dense Urban Macro Micro Tx power 40W 8W Antenna Height 30 meters 10 meters Spectrum 2.6GHz (10MHz) 2.6GHz (10MHz) Sectorization 3-sectors OMNI 2x faster! 3.3x capacity 3.3x higher system throughput 2x faster average user data rate @ 100Mbps/km2 traffic load Far better cell edge/indoor performancePage 8 NEC 2011
  9. 9. Small Cell Case Study 3 2.5  A joint analysis NEC and a tier 1 operator  Major European city 2  3 x 3km square  Real site locations and traffic distribution 1.5  5 various deployment options with varying frequency band and deployment options (site 1 location and reuse) 0.5 0 3 2.5 2 1.5 1 0.5 0 Macro Micro Total Total Configuration Total BW Site Selection Sites Sites Cells Sites 100% re-use existing A Macro (800MHz, 10MHz) + micros (2600MHz ,20MHz) 30MHz 42 179 305 221 2G/3G sites 100% re-use existing B Macro + Micro 2600MHz (20MHz) 20MHz 42 179 305 221 2G/3G sites Macro:100% re-use C Macro (800MHz, 10MHz) + micros (2600MHz ,20MHz) 30MHz 42 179 305 221 Micro: 40% in better location Macro:100% re-use D Macro + Micro 2600MHz (20MHz) 20MHz 42 179 305 221 Micro: 40% in better location Reuse existing 2G/3G micro E Micros (2600MHz, 20MHz), no Macro 20MHz 0 259 259 259 sites + 80 New microsPage 9 9 Page NEC 2011
  10. 10. Case Study - Performance Comparison >3x capacity >1.5 average user data rate > 25% better capacity @25% resource utilization  A/B vs C/D: bringing small cells close to traffic is essential.  E vs B: the small cell blanket solution offers significant gain on both capacity and user experience.  A/C vs B/D: mixed spectrum (800MHz + >4x cell edge 2600MHz) provides higher average data rate user data rate  The deployment should not be restricted to the existing sites  Careful load balancing is required to ensure good performance on both macro and micro layersPage 10 NEC 2011
  11. 11. Small Cell more than just an “in-fill” solution DL planning reference UL planning reference  Dense Urban, 2.6GHz, 20MHz system bandwidth  8W eNB output power, average antenna Height ~10 m  Superior DL and UL performance Downlink performance @ 200Mbps/km2A for both average and cell edge  Average user data rate: ~22Mbps  Cell edge data rate: ~9Mbps  Cost effective blanket coverage - 20% TCO savings comparing to traditional Uplink performance @ 100Mbps/km2  Average user data rate: ~20Mbps Macro + Micro approach  Cell edge data rate: ~2Mbps Capacity with Small cell Followed by the Coverage with macro Out fill not In fillPage 11 NEC 2011
  12. 12. Significant lower TCO with Small Cells ~40% CAPEX saving  Greater London, 1600km2  Urban & Sub-urban  0.8 Million Subscribers at year 10  2.6GHz, 2x30MHz FDD Network CAPEX Network CAPEX (Macro) (Micro) Very low investment in mid/long termPage 12 NEC 2011
  13. 13. Innovative services empowered by LTE small cells Enterprise IT Platform NEC’s Femto and Small Cell SaaS Platform Solutions as part of the Service Enabler Iub LIPA capable small cell eNB High capacity, superior quality Ubiquitous service availability Mobile Cloud Femto Services E2E QoS management Flexible installation, easily tailored for dedicate use cases Field proven open API E-Wallet Total: € 20 Billing Billing: € 15 B E-Money Point: € 5 €€ € Credit Card User Point Service Provider (SP) M-Commence M2M Page 13 NEC 2011
  14. 14. Concluding Remarks Mobile data traffic is growing exponentially and capacity crunch is real LTE small cell a key solution to deliver a massive capacity, higher performance in a very fast time at a TCO which is a key to NEC Femto sustainability of mobile broadband business. LTE small cell will be the main stream MBB solution because they help to drive the cost down and at the same time they improve the NEC Small Cell user experience, add value and help to increase revenue NEC is a pioneer in Femto and LTE Small Cells technology NEC’s LTE Small Cell Solutions a Smart Way to Future Mobile BroadbandPage 14 NEC 2011