Unraveling the Mysteries of the Next Generation RAN

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Unraveling the Mysteries of the Next Generation RAN



Radisys Director of Product Marketing Todd Mersch discusses the challenges associated with next generation deployments during this 4G World 2011 keynote presentation.

Radisys Director of Product Marketing Todd Mersch discusses the challenges associated with next generation deployments during this 4G World 2011 keynote presentation.



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  • Removes macro / femto interference mgmt issueBest utilization of available spectrumTD-LTE Ecosystem growing rapidly

Unraveling the Mysteries of the Next Generation RAN Presentation Transcript

  • 1. Unraveling the Mysteries of the Next Generation RAN Todd Mersch Director of Product Marketing October 25, 2011
  • 2. At a Glance Single Solutions Source World Wide Customer Base Protocol Software Embedded COTS Platforms Wireless Media Server Infrastructure Solutions Professional Services 2 Embedded Wireless Infrastructure Solutions Radisys Corporation Confidential 2
  • 3. Recent News & Awards  Radisys Acquires Continuous • Embedded wireless infrastructure solutions  BTS • 3G & LTE Battlefield Communications  Winner: • World Vendor Awards • Femto Forum Awards • Informa LTE Awards • World Mobile Awards  Finalist: • GSMA Awards Radisys Corporation Confidential 3
  • 4. Telecom Today Demographics Devices Demand Internet Internet Applications Mobile Internet Devices Generation & Content Radisys Corporation Confidential 4
  • 5. Data Remains The Growth Engine Capacity Mind The Gap Revenue vs. Traffic Growth Traffic Revenues & Traffic Gap Widening Voice Era Revenues Data Era  Traffic doubling every 12 months  Increase ARPU  VideoText – Operator’s Albatross  Lower cost per bit Source: Cisco VNI Source: Heavy Reading Radisys Corporation Confidential 5
  • 6. Demand – Supply Challenge Shannon Moore Divide Moore Divide Shannon LTE Radisys Corporation Confidential 6
  • 7. 4G Deployment Demands Solutions Operator Customer Core Challenges Experience Intelligent Core Power Traffic Network Management Management Scaling Access Access Side HetNets Energy SON BTM Radisys Corporation Confidential 7
  • 8. Network Mutation Macro Topology Hierarchical Cell Structure Courtesy AirHop Communications Coverage Era Capacity Era 1990 2010 “The need for 4G picocells and femtocells to enhance coverage and boost capacity in hotspots is one of the important principles for Verizons LTE Network” -- Verizon Wireless CTO Radisys Corporation Confidential 8
  • 9. Cell Diversification New Focus: Small Cells MacrocellCapacity Microcell / Picocell Greater Femtocell Femtocell Coverage Radisys Corporation Confidential 9
  • 10. Spectrum  The Spectrum Challenge • 700MHz 2.6 GHz • 2.6GHz 2.6 GHz • Digital Dividend • 900 / 1800MHz re-farming 2.6 GHz  Frequency Impacts Network Costs • Increases with frequency Cell radius ~ 30 – 300m  TD-LTE = Opportunity 700 MHz • FDD for Macros • TDD for Femtos  Multi-Band Deployment • 2.6GHz for Femtos • 700MHz for Macros Cell radius ~ 1 – 3km Radisys Corporation Confidential 10
  • 11. Multi-Mode Small Cells Multi-Mode Small Cell Controller Core Network Small Cell SEG HNB GW Iu Iuh 3G Core Gn’ / Wm Wu SEG TTG S1 S1 SEG HeNB GW EPC  Increase 3G and LTE capacity and coverage in single device  Upgrade path from 3G to LTE  Convergence with operator managed WiFi (Hotspots / Enterprise)  Support for mixed subscriber base  Leverage same IP backhaul Radisys Corporation Confidential 11
  • 12. Operator Driven Access Side BTM Policy Enforcement solutions supporting Broadband traffic segregation, mobility across available networks Policy Control and aggregation to service provider Flow QoS and 3G segregation Analytics & Mobility Bandwidth WiFi Policy Aggregation Management Engine & Protocol Client LTE IP layer Bandwidth Management Functions & Policy (in service provider network)IP Flow Segregation (different flows on different networks) IP Flow Mobility (moving an IP flow across networks) Context-aware Policy Enforcement Bandwidth Aggregation across multiple networks (Location, battery life, speed, application requirements, cost, etc) + Radisys Corporation Confidential 12
  • 13. Age of HetNetsCapacity Multi- Mode (LTE- Demand-based LTE –TDD TDD Capacity & LTE - TDD LTE-TDD / Femto 2.6GHz / Coverage Femto Femto 2.6GHz 3G 2.6GHz 2.6GHz 2.1Ghz) LTE FDD Networks, 700 MHz Nationwide 3G / HSPA Networks, 2.1GHz Network GSM / GPRS / EDGE Networks, 900MHz / 1800MHz Coverage Rural Sub-urban Urban Dense UrbanLow Broadband Proliferation High Radisys Corporation Confidential 13
  • 14. HetNet Considerations  Where • Finding the “hot” areas • Targeted deployment  What • Hotspot vs. Hotzone Spot • Single – Dual – Multi Mode Zone  How • SON, Interference, IOT SON • Logistics Radisys Corporation Confidential Logistics 14
  • 15. HetNet Opportunities for Innovation Local IP Access Multi-Mode RRM Multi-Mode Small Cell Local 3G Fallback Internet IP to CN WiFi Multi-ModeOffloading Small Cell Energy SON Hub Power Multi-Mode Small Cell Wireless Backhaul Multi-Mode Small Cell Radisys Corporation Confidential 15
  • 16. DPI = Control Video Conference Platinum Operator VoIP Gaming Bronze Video on Demand Gold Email Business Class VPN Silver Browsing P2P App- Maximum Tiered based Network SLAs QoS Monetization Radisys Corporation Confidential 16
  • 17. Not All Cells Are Loaded Equally! Top 5% utilized Average cell cells heavy on HTTP P2P Streaming grew to 27% Source: Allot Mobile Trends, Global Mobile Broadband Traffic, H2/2009 Radisys Corporation Confidential 17
  • 18. Adaptive Traffic Shaping Dense Urban RAN-Aware Traffic Shaping #1 Radio - Congestion Aware Access - Femto Aware Network - Dynamic Network Policy (RAN) Signaling Information Suburban RNC #2 ATS SGSN GGSN Platform Femto Gateway Residential Femtocell #3 Radisys Corporation Confidential 18
  • 19. Framework RAN Tiered SLA Congestion Aware Aware Femto Application Aware Aware Policy Enforcement Point DPI Key to Real-Time, Line-Rate, Multi-Aware Policy Enforcement Radisys Corporation Confidential 19
  • 20. Internet Offload Network Architecture Offloaded data traffic to PDN CGF CRF OCS Internet Gi Ga Gx Gy Iub Iu Iu Gi Node B IOG RNC SGSN GGSN Legend Signaling Non-offloaded data traffic Offloaded data traffic Offloading • Bump-in-wire device • Minimize traffic to CN • DPI application / protocol • Reduce CN OPEX / CAPEX Radisys Corporation Confidential 20
  • 21. IOG Anatomy Control Plane Software Application Processor # 1 SGSN IuPS Charging Stack Monitoring Stack Gi Internet IuPS Data Plane Software Processor # 0 Application RNC Offload Decision Block DPI Packet Failover RTM Classification IP ~ 10 Gbps Line Fail-to- Rate wire Radisys Corporation Confidential 21
  • 22. Video – Streaming & Optimization 3D? 3 Mbps+ (HD) 768 kpbs – 3Mbps 384 – 768 kbps Multi-format Real-time 64Kbps Pre-store Transcode Internet Iub Iu Node B Video Gi RNC SGSN GGSN Optimizer Legend Signaling Non-optimized data traffic Optimized data traffic Radisys Corporation Confidential 22
  • 23. Isolated RAN or Core SolutionsNot Enough for 4G UL Traffic Flow Aggregates Backhaul BW DL Traffic Flow IP Fluctuations Aggregates Services Bearer Bearer Bearer QCI / QCI / QCI / QoS QoS QoS SGW PDN UE eNodeB GW QoS Policy & PCRF Highly Time Session Info Sensitive Signaled E2E Air Interface  Line rate traffic management from EPC  Coordinated with air interface scheduling  Adaptable to changing backhaul bandwidth limitations Radisys Corporation Confidential 23
  • 24. Summary Next Generation RAN = HetNet • Multi-mode providing flexibility • Small cells for capacity & coverage Topology alone is not enough Embedded • Blending of DPI & Wireless a must Wireless • Delivering the promise of SON Infrastructure Solutions Still resource limited • Operator-controlled WiFi offload • Congestion, Femto, SLA, application- 23 LTE aware 31 Femto 21 DPI Wins! Radisys Corporation Confidential 24