Presentation delivered at Broadband Traffic Management Congress on November 2010 entitled, "Evaluating Approaches to Building DPI into an LTE Network at the PDN Gateway and Esuring Scalability"

1. Broadband Traffic Management
Evaluating Approaches to Building DPI
into an LTE Network at the PDN
Gateway and Ensuring Scalability
Manish Singh
Vice President, Product Line Management
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2. At a Glance
Over 150 Customers Worldwide
Protocols
LTE
Femto
DPI
ATCA Professional
Platforms Services
See us in the Exhibit Area
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3. Recent News & Awards
 16th LTE Win: BreakingPoint
• LTE measurement & validation
 Mindspeed + Arraycom + Continuous
• LTE eNodeB reference design
• Accelerates deployment, reduces cost
 Allot Selects Continuous
• DPI / Traffic Management
• Top 3 traffic mgmt vendor (Infonetics)
 Winner:
• Femto Forum Awards
 Winner:
• Informa LTE Awards
 Finalist:
• World Communications Awards
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4. Agenda – LTE Traffic Management & Monetization!
Why? What? How?
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5. Why?
Why?
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6. LTE’s Momentum
150+ Operators
• Committed LTE plan
• Trials & Rollouts
1st LTE Commercial Network
• Launched in 2009
• TeliaSonera in Sweden & Norway
72 Million LTE Connections by 2013
• 2010 more commercial deployments
• MetroPCS, Verizon, NTT DoCoMo, China Telecom
Source: Infonetics Research, 2009
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7. Growth Drivers
Demographics Devices Demand
Internet Mobile Internet Internet Applications
Generation Devices & Content
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8. And More to Come…
Smartphones, Netbooks, Notebooks…
Smartphones Netbooks Notebooks
Cameras, eBooks, Med Devices, Gaming, Navigation…
Personal Medical Gaming Navigation
IP Cameras eBooks
Devices Consoles Systems
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9. Mobile Broadband: Huge Demand, Huge Challenges
Capacity Mind The Gap
 Traffic doubling every 12 months  More for less
Text
 LTE spectral efficiency gain = 4X  Lower cost per bit
Source: Morgan Stanley, Mobile Internet Report 2009 Source: Light Reading, 2009
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10. What?
What?
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11. Options
Increase Revenue Reduce Traffic
 $X / MB  Walled Garden
 Less for More  Traffic Blocking
But, that’s going back…
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12. Alternative
MME / Serving GW MME / Serving GW
Capacity
S1 S1
X2
eNodeB eNodeB
Cost
eNodeB
But Still
Spectrum
Limited
4X 1,000,000x Manage
LTE Spectral FAP Spectrum DPI Limited
Efficiency Reuse Capacity
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13. Disruption
Core
MME / Serving GW MME / Serving GW RAN-Aware Video
Internet
Traffic Trans-codin
Offloading
Shaping g
S1 S1
X2
eNodeB eNodeB
Access
WiFi
eNodeB Small Cells TD-LTE
Offloading
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14. 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 Verizon's LTE Network”
-- Verizon Wireless CTO
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15. Shrinkage!
Macrocell
Capacity
Microcell /
Picocell
Greater
Femto
Femtocell
Coverage
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16. LTE Femtocell Reference Design
 World’s 1st LTE Femto
Reference Design
 Trillium LTE Femtocell
Software
• 3GPP March 2009
• LTE Uu
• FDD & TDD both supported
• S1 & X2 Network interfaces
 picoChip PC7608
• Software defined LTE PHY
• 2 x 2 MIMO operation
16 LTE Customer Wins!
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17. Beachhead Opportunity
3G LTE
Act Now!
Wait…
LTE = Femto’s Biggest Opportunity
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18. 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
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19. Striking Balance – How Neutral?
Freedom of
Choice
Fair-use
Balancing Maintaining
Supply Network
vs. Profitability
Demand
Transparent
Traffic $
Management
Policy
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20. DPI Platform Evolution
2012
2011 400 Gbps
320 Gbps 40G Switching
XE100 Compute – Sandy Bridge
Today 40G Switching
XE80 Compute - Westmere
PP80 Packet Processing
160 Gbps PP80 Packet Processing
10G Switching
XE80 Compute - Westmere 15 DPI Customer Wins!
PP50 Packet Processing
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21. How?
How?
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22. Spectrum
 The Spectrum Challenge
• 700 MHz 2.6 GHz
• 2.6 GHz 2.6 GHz
• Digital Dividend
• 900 / 1800 MHz 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
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23. EPC Scaling Problem
E-UTRAN Architecture
MME / Serving GW MME / Serving GW
HeNodeB HeNodeB HeNodeB
S1 S1
X2
eNodeB eNodeB HeNodeB HeNodeB HeNodeB
HeNodeB HeNodeB HeNodeB
eNodeB
15 DPI Customer Wins!
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24. Scaling EPC
64K Associations!
1M+ SCTP Packets / sec!!
Fast Path SCTP
PP50
+
Death by 1,000 pizza boxes
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25. 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
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26. 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
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27. Framework
RAN
Tiered SLA
Congestion
Aware
Aware
Application
Femto Aware
Aware
Policy
Enforcement
Point
DPI Key to Real-Time, Line-Rate, Multi-Aware Policy Enforcement
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28. 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
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29. IOG Anatomy
Control Plane Software
Application
XLR # 1
SGSN
IuPS
Charging Stack Monitoring Stack Gi
Internet
IuPS
Data Plane Software
XLR # 0
Application RNC
Offload
Decision Block
DPI
PP50 COP50 RTM
Classification IP ~ 10 Gbps Line Fail-to-
Rate wire
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30. Traffic Shaping in Mobile Networks
PCRF
Internet
Iub Iu Gi
Node B Traffic
RNC SGSN GGSN
Shaper
Legend
Signaling Non-offloaded data traffic Offloaded data traffic
Policy Enforcement
• Bump-in-wire device • Time of day
• DPI Application / protocol • User Priority
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31. Shaping & Offloading DO NOT Mix
Offloaded data traffic to PDN
PCRF
CGF CRF OCS
Internet
Gi
Ga
Gx Gy
Iub Iu Iu Gi
Node B IOG Traffic
RNC SGSN GGSN
Shaper
Legend
Signaling Non-offloaded data traffic Offloaded data traffic
Offloading Breaks Shaping!
Shaper & Offloader Must be Co-Located!
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32. Summary
 LTE alone will not solve capacity
crunch
• Linear solution for an exponential
problem
• Femtocells = Exponential Solution
• Spectrum Efficiency + Spectrum Reuse
 Small cells creating ‘EPC Scaling’
problem
Bridging the
• MME must scale to handle millions of DPI – Wireless
femtos Divide
 Still spectrum limited
• Traffic Management Essential
• Congestion, Femto, SLA, Application 16 LTE
Aware
& 15 DPI
• DPI holds the key
Design Wins!
 Offloading & Shaping don’t mix!
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33. Questions & Comments
Manish Singh
Vice President, Product Line Management
www.ccpu.com
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