Radisys & Airspan - Small Cells and LTE-A Webinar Presentation


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Radisys' Renuka Bhalerao and Paul Senior of Airspan presented: Small Cells & LTE Advanced - The Hype of 3Cs: Capacity, Coverage and Customer Satisfaction on June 11, 2013. View/Read their materials how mobile operators can make their networks more efficient, increase capacity and coverage by deploying LTE-A and strategically placed small cells.

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Radisys & Airspan - Small Cells and LTE-A Webinar Presentation

  1. 1. 1Welcome!Today’s Webinar:Small Cells & LTE AdvancedThe Hype Of 3Cs: Capacity, Coverage & CustomerSatisfactionPresented in partnership with
  2. 2. 2Agenda LTE Today• Market Update and Operator View• Video as the dominating application LTE-A Evolution: A Phased Rollout• Advanced interference mitigation• Multi-carrier support• HetNet Era LTE-A and small cells combo canusher in new era• Public Access Small Cells• Backhaul Technology• Self-organizing networks LTE-Advanced Small Cells casestudy Final thoughts Q&A
  3. 3. 3LTE Market UpdateLarge operatorscontinue to unveil theirLTE and small cell plansNew devices definingmobile broadbandsuccess = newopportunitiesVideo dominates as THEapplication•The smart phone growth of 7times translates to data growthof 37 times *Analysts predict Network Transition by2017 in a phased rollout *: Phase 1: 3G rollouts, 2008–2011 Phase 2: 3G expansion and upgrades, 2012–2016 Phase 3: 4G capacity upgrades, 2013–2017*Infonetics Research 2013
  4. 4. 4Transition: How LTE Picked Up Pace4G/LTE3G2.5G2G2008200519971990 Operators rushing for LTEupgrade of their networks Growing subscriber base withhigh data usage Capacity need in dense urbanareas Smart Devices 2G prevailed, 3G picked upand now LTE gainedmomentum at even fasterpace A dramatic shift from voice todata and videoAll IP Network with simplified architecturedata speeds 10x UMTS
  5. 5. 5LTE-Advanced: Why? Where? LTE Deployments are picking up but not without challenges• Initial LTE rollouts in Asia have provided opportunities for manylessons learned• Key challenges facing larger scale small cell deployments,including the complexity and cost of wireless backhaul and radiointerference• When it comes to capacity management, redirection alone is notsufficient• Most of the traffic load is still indoors, small cells popping up andso is the interference at radio side– Dense deployments mean more interference– Spectrum is limited, data usage is not!LTE-A promises the much needed upsurge in network efficiency, increasednetwork capacity that is key to monetizing mobile broadband
  6. 6. 6Operator Views on Challenges23%23%11%10%10%10%9%4%Site AcquisitonLow-cost DeploymentModelMacro Can Handle ItBackhaulIntegration with MacroAvailability / CostSecurity0% 5% 10% 15% 20% 25% 30% 35% 40%Most public access small cells will need tocoordinate with the macroAll public access small cells will need tocoordinate with the macroLow-power public access small cells (e.g. <250mw) can manage themselves, but higher powerdevices need active coordinationPublic access small cells can largely managethemselves & don’t need to co-ordinate39%28%19%14%46% Cite Logistics &Deployment Model86% Expect Some Degree ofMacro to Small CellCoordinationSource: HeavyReading Small Cell OperatorSurvey
  7. 7. 7LTE-Advanced: The Evolution• Carrier aggregation for better spectrumflexibility and higher bandwidth• HetNet and small cells enhancements• CoMP and eICIC for improved co-ordination.• Enhanced SON techniques goingbeyond self-initialization• Relaying for outdoor range extensionHigh data rates Downlink peak data rates up to3Gbps. Uplink data rates up to max1.5Gbps Support for up to 100MhzbandwidthBetter spectral efficiency Maximum 8x8 MIMO downlink, 4x4uplink from a maximum of 16bps/Hz in R8 to30 bps/Hz in R10As an upgrade to LTE Rel 10 and later of LTE standards The true ‘4G’ by ITU standards UTRAN And UE upgradesInternetMobile CoreServicesServicesHetNetSmall CellsCollection Of Key Features for targetedenhancements
  8. 8. 8LTE-Advanced A Tiered Roll OutCarrierAggregationeICIC andSONEnhancedMIMOHetNetsupport Interference Mitigation Data throughput -> 100MHz BW Backhaul Issues ->Relay Nodes Capacity addition ->HetNet, SON
  9. 9. 99Polling Question 15/14/2013What is the key feature from LTE-Advanced arsenalfrom an operator perspective?a) Operators need eICIC for interference managementb) Operators need LTE-Advanced for better MIMO on Macro cellsc) LTE-Advanced enables “HetNet” Public Access Small Cellsd) I don’t know.
  10. 10. 10Motives for Small Cell DeploymentsProblem:Data loads exceeding capacity- Limited macro expansion andcostIncrease capacity economicallyby offloading to femtocellsSmall Cells:Provide localized capacity- Expand overall capacity w/ lowercostCapacityProblem:Basic RF coverage holes- Hotspot coverage – 3G/LTE/WIFI-Rural areas “Greater Femto”Small Cells:Provide basic service coverage- Enterprise deployments- Alternative to RF repeatersCoverageVoiceData- Benefit: Increase capacity, increase coverage, with lowerCapEx, OpExCost perMbit/sBenefits: Reduce churn, increasecustomer lifetime value
  11. 11. 11Small Cells with LTE-Advanced With its powerful combination of capacity and coverage, LTE-Advanced supports the growing relevance of small cells Robust LTE coverage in high density Tremendous Capacity gain via HetNet Higher data rates with CA eICIC techniques for interferencemitigationSmall cells are theanswer to increasecapacity andcoverage innetworkLTE-Advancedbrings out real Costper Mbit/sadvantagesIndoor, Public Access orMulti mode small cells
  12. 12. 12It is Not Just A Hype After all…End user benefits• Faster data connections• Improved userexperience• Extended coverage• Higher CustomerSatisfactionOperator benefits• Improved NetworkEfficiency• High performance,reduced cost per bit• Increased customersatisfaction• Coverage via HetNet• Capacity via small cells• And better QoE drivingmore revenuesAll with an upgrade at UTRAN and UE sideNo grounds up development3G5MHzLTE20MHzLTE-A20MHzLTE-A20MHz3G5MHzLTE20MHzLTE-A20MHzLTE-A20MHz…3G5MHzSmall cellsolutionswith carrieraggregationearly 2014
  13. 13. 13Agenda LTE Today• Market Update and Operator View• Video as the dominating application LTE-A Evolution: A Phased Rollout• Advanced interference mitigation• Multi-carrier support• HetNet Era LTE-A and small cells combo canusher in new era• Public Access Small Cells• Backhaul Technology• Self-organizing networks LTE-Advanced Small Cells casestudy Final thoughts Q&A
  14. 14. 14Airspan Confidential informationAirspan’s Innovation and Leadership in RAN
  15. 15. 15Airspan Confidential informationSmall Cell Deployment ScenariosOutdoor Pico - Wired BackhaulOutdoor Pico - Wireless BackhaulIndoor Pico - Wired Backhaul & SyncIndoor Pico - Wireless Backhaul & SyncFiber FiberFiberFiber#1 #2#3 #4
  16. 16. 16Airspan Confidential informationSmall Cells and Cost per Mbit/s….• Coverage and Capacity are goodreasons for small cell rollout, but“killer applications” is reducing thecost of delivering each Mbit/s• Mobile Data Traffic growth is a“zero-sum game”…• Growth will be limited unless “cost perMbit/s” to deliver mobile data decline.Macro cell costs are not declining..• Small Cell deployment is the besttool to lower mobile carrier CAPEXand OPEX, if done right…• starting with the Outdoor RAN…• then into the Enterprise…• and ultimately in the home….Airspan Small Cells lower $$$ per Mbit/sMbit/s$$$
  17. 17. 17Airspan Confidential informationLTE-Advanced: SON and eICIC, the Small Cell Building Blocks• Airspan is developing an earlyimplementation of LTE-AdvancedeICIC and SON.• LTE-A HetNet built using keyfeatures, namely;• SON (powered by Qualcomm UltraSONand Radisys SON Frameworks)• Almost Blank Subframes (ABS)• X2 communications between RRMs• Soft Frequency Reuse (SFR)• Distributed Inter-cell InterferenceCoordination(ICIC)• Cell Range Extension• eICIC and SON solutions built uponRel 8/9 LTE features• Now enhanced for LTE-A Release 10eICICand SONABSSFRX2ICICBaseline Release 8/9LTE eNodeBRE
  18. 18. 18Airspan Confidential informationLTE-Advanced: X2 Communications for eICIC• At the heart of this LTE-Advanced eICIC isextensive use of the X2 interface whichallows communications between RRMswithin each eNodeB.• The X2AP interface was enhanced in Release 10explicitly for eICIC and ABS• X2 requires communications occur betweenMacro and Pico, and Pico to Pico.• The eICIC process ensures that trafficscheduling by Macro and Pico eliminatesco-channel interference• By stopping simultaneously use of time/frequencyresource blocks in locations where interferencewould occur.X2X2X2Release 10/11/12:eICIC and SONX2 communications arecritical to LTE-A and Smallcell deployment.
  19. 19. 19Airspan Confidential informationDynamicResource BlockAllocationThe Power of LTE-Advanced: eICIC and SON• LTE-A eICIC and SON enablesaggressive deployment of LTEsmall cells• Allowing Time and Frequencyresource block re-use.• Closely Coupled (Tri-sectored)• Typically a Base Station withmultiple sectors that share the samefrequency. X2 communication overEthernet or internal messagesbetween sector RRMs• Loosely Coupled (Omni)• Auto-Optimizing and Configuringcells that share the same spectrum(i.e. N=1 re-use). X2communications over wide-areabackhaul to other cellsAllResourceBlocksAllResourceBlocksAllResourceBlocksLoosely Coupled: OmniCells at different locationsClosely Coupled:Sectors at same cell locationDynamicResource BlockAllocationFrequencyTime
  20. 20. 20Airspan Confidential informationLTE-Advanced: Small Cell Deployment Life Cycle• Small cell deployment requiresLTE-Advanced eICIC and SON.• Elimination of co-channelInterference by inter-cellcoordination• capacity enhancement by optimalUE to eNodeB mapping• Remove the need for FrequencyPlanning by Self Optimisation andSelf Configuration• Cells automatically getconfigured using combinationSON server and in-built“distributed” SON.• Without impacting / interfering withexisting network• Removes the need for complexnetwork design ahead ofdeploymentStep 1:Typical Tri-Sector Macro-celldeployment. Release 8/9 ICIC autoconfigures sector radio interfaces usingX2 comms between sectors anddynamically schedules traffic. SON notrequired. Uses SFRStep 2:“Omni” small cells added to thedeployment. Small cells impactresource block mapping. Static SONand eICIC re-configs to ensure optimalmapping. Uses ABS Patterns in areasof co-channel overlap.Step 3:Mass deployment of Small Cells.Dynamic SON and eICIC also drive Txpowers and Range Extension bias tobest optimize resources across thenetwork. Uses ABS Patterns in areasof co-channel overlap.
  21. 21. 21Airspan Confidential informationAirspan + Radisys: Delivering Small Cells in 2013• Radisys partnership is driving rapid implementation of core LTE-Advanced Release 10 HetNet features• Including eICIC and SON• Protocol functionality from TotaleNodeB• with Airspan differentiated feature extensions• TeNB enables 3G UMTS and CDMA interworking features• eHRPD: Inter-RAT Handover• eCSFB for Voice fallback services
  22. 22. 22Airspan Confidential informationThe Airspan LTE Small Cell SolutionAirSynergy 2000Integrated OutdoorPico CellAirSynergy 1000Indoor Enterprise PicoCellAir4GCompact Micro /Pico CellAirCOREScalable EPCNetspanElement Management SystemIMS and“TheInternet”North-BoundMgmt Interface(NBMIF)SON
  23. 23. 23Airspan Confidential informationWhat other problem does AirSynergy solve?• Scale 4G RAN Capacity• Supports the creation of HeterogeneousNetworks (HetNets) to allow 1000xcapacity growth in advanced 4Gnetworks• 4G for Enterprise & High Density• Flexible solutions for Enterprise,Shopping Malls, Airports locations.• Avoids expensive and time consumingdeployment of DAS “Leaky-Feeder” in-building solutions, or massive structuredcabling costs associated with low-powerFemto cells• Sustainable 4G Rural Coverage• Economically viable 4G mobilebroadband for low density and ruralareas.
  24. 24. 24Airspan Confidential informationAirspan HetNet = AirSON• AirSON = Airspan Self Optimising Network• AirSON facilitates co-channel deployment of small cells• Macro and Pico Layers share the same channel or different channels• Avoids underutilization of spectrum resource• Maximises reuse, but adapting to environment• Interference Reduction and Mitigation• Reduces or Eliminates Inter-Cell interference• Both Macro to Macro, Pico to Pico• “Maps Out” cross-layer interference:• Macro to Pico• SON for Outdoor and Indoor Small Cells• Air4G (Airspan Macro/Micro) and AirSynergy (Airspan Pico/Femto)• Inter-vendor IOT and Backhaul SON integration in later releasesAirSON is designed to automatically configure Small cells tomaximize the capacity in the available frequency resource forAccess and any In-Band wireless BackhaulSON
  25. 25. 25Airspan Confidential informationAirSON: for Hyper-Dense Small Cell LTE NetworksSONAirSON enables the deployment ofHyper-Dense Small Cell NetworksAutonomous, De-centralized SON: Plug and Play installation, andInstant start-up, independent eNodeB SON processingMobility Management: Frequency Handover Control, Forward Handover,Robust Mobility Signaling and Automatic Neighbor Relationship DiscoveryTx Power Control Management: Network Listen Tx Control, UE TxPower Measurement Collection Pilot Pollution reductionResource Sharing and Interference Mitigation: Release 10 eICIC,Almost Blank Sub-frames and Cell Range ExtensionBeam-Shaping Antenna Systems: Adaptive Antenna systems to assistTx Power controlIntelligent Backhaul: Combined Access and Backhaul resourceoptimization. Multi-tier schedulingPowered byUltraSON™
  26. 26. 26Airspan Confidential informationAirSON: Features for LTE Small CellsSON Feature BenefitsPlug and Play Configuration: Enables installation by low skill technician or end-userwith no or limited RF planningAuto Configuration and ProvisioningForward Handover: Reduce HO interruptions using pre-fetchReduces Handover failure in small cell deploymentsInter-RAT ANR: Establish Neighbor relations with other technologiesNeighbor Relations with 2G and 3GFrequency HO Mitigation: Between Pico cells and between Macro and Pico cellsPrevents HO ping-pong between small cellsTx Power and Antenna Pattern Adaption: Using Network Listen and UEmeasurementsChange Tx power and Smart Antenna Patterns tominimize interference (Pilot Pollution)Automatic Neighbor Relations: Construct NR tables from Network Listen, UEMeasurements, X2 trafficEnhanced ANR tables ensure better HandoverchoicesPCI Self-Config and Collision Resolution: Choose PCI using Network Listen, X2 andUE reportsOptimized PCI allocation reducing collisionsSelf-Healing: Adapt network topology (power, antenna patterns etc..) to restore coverageif small cell fails or is turned offRapid re-establishment of ANR when networkchangesMobility Robustness Optimization: Optimize HO using power Boosting & smartSchedulingReduce too early / too late / wrong cell HOResource Coordination and Interference Management: Using inter-cell resourcemapping (eICIC, scheduling and joint Tx PC)Reduce integration using eICIC between Small Cellsand Macro and PicoMobility Load Balancing: Load Balance across small cells using MLB X2 frameworkLoad Balancing using small cellsBackhaul Management and Resource Balancing: End to End QoS, ResourceBalancing, Tx Power control and Antenna shapingQoS and bandwidth matching between backhauland LTE Access
  27. 27. 27Airspan Confidential informationSummary• Airspan’s Air4G and AirSynergy small cells are the world’s first LTE-Advanced Ready small cell family• Implementing both advanced SON and eICIC• Our early LTE-A implementation is enabled by ToteleNodeB andpartnership between Airspan and Radisys, and our baseband vendorQualcomm.• LTE-A enables small cells to provide Coverage, Capacity and mostimportantly Cost reduction for providing mobile broadband services.• AirSynergy and Air4G Small Cells shipping to carriers across the globe.Available in many FDD and TDD bands• 700 MHz – Band 12, 17, 13 and US Public Safety Band 14• 800 MHz – Band 19, 20, 5, and 25• 1700-2100 MHz – Band 3, 4, and 10• 2.3 GHz – Band 40• 2.6 GHz - Band 7 and Band 41 / 38• 3.4-3.8 GHz – Band 42 and 43
  28. 28. 2828Polling Question 25/14/2013Why deploy Public Access Small Cells?a) Operators really need Public Access small cells for capacityb) Operators will use Small Cells for Coverage fill-inc) Public Access Small Cells reduce the cost of datad) I don’t know.
  29. 29. 29What’s next for LTE-AdvancedPowered Small CellsRel 8 Rel 9 Rel 10 Rel 11 Rel 12 3GPP Release 12 - September 2014 Small Cell enhancements focusing onsmooth integration in the macro network Address improved coordination betweensmall cells and macro, introducing dualconnectivity Operators with diverse spectrum holdingsto aggregate multiple smaller carriers Carrier aggregation enabled for improvingTD-LTE throughput Improved energy efficiency throughdevelopment of the Cloud RANServices
  30. 30. 30Final Thoughts Smartphones are becoming the primary device forinternet access The HetNet shows a way to use small cells toaccommodate traffic growth and solve capacity andcoverage LTE-Advanced has become a necessity for thesedeployments to ensure the real cost per bitadvantage Question and Answers…
  31. 31. 31Thank You for Attending…~Please fill out our short survey~We Value Your FeedbackPlease join us for the next webinar in this series -11am ET:Thursday, July 11 – The Telecom Cloud: CriticalDeployment StrategiesRegister: www.radisys.com/Transform