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Radisys offloading 10412_final


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Mobile Data Offloading, webinar, held on October 4, 2012. Presenters: Jeff Sharpe, Sr. Product Marketing Manager, Renuka Bhalerao, Principal Systems Architect and Michael Thomas, Principal Systems Architect

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Radisys offloading 10412_final

  1. 1. Welcome! October 4 Mobile Data Offloading Optimization November 1 Core Network Optimization: The Control Plane, Data Plane and Beyond December 6 Optimizing Value Added Services (VAS) for Greater Revenue Generation 1
  2. 2. Today’s Topic and Presenters Mobile Data Offloading Optimization Presenters: Jeff Sharpe, Sr. Product Marketing Manager Renuka Bhalerao, Principal Systems Architect Michael Thomas, Principal Systems Architect October 4, 2012 2
  3. 3. Radisys Solutions Carrier IP Wireless Core IP Backhaul NetworkSmall Cell SEG Small Cell GW COTS SEG Solution +  Carrier-Grade Turnkey SEG  Flexible Deployment OptionsLTE & 3G Macro & Small Cell SW Small Cell Gateways RRM, SON, OA&M & Protocols  ATCA Systems Silicon Integration  Optimized Trillium SW Complete Product Portfolio Customized, Optimized & Deployed with Radisys Services 3
  4. 4. Agenda  Mobile Data offload business case  Possible offload approaches  Small Cells and WiFi Offload  Data offload optimization from access to core  Key Opportunities / Solutions • Security for WiFi & Small Cell • Handling increase in Network Signaling Load  Final thoughts  Q&A 4
  5. 5. Why Offload: Business Case forOperators Mobile Internet Traffic [ExaByte/year] Services 25 20 Mobile Internet Access Mobile Laptop 15 Smartphones Devices 10 5 1 billion 0 2008 2009 2010 2011 2012 2013 2014 2015 Technologies 2G 3G LTE 2009 2010 2011 2012 2013 2014 5
  6. 6. Key Challenges For Operators Base station capacity & Coverage • Challenge solved by small cell + WiFi integration • Low cost offload option • Handle AAA & Network security Backhaul cost & bandwidth • High OpEx linked to capacity carried • Move to all-IP helping but still a high cost • Data Offloading to reduce volume of traffic backhauled Core network capacity • Most core networks becoming overloaded and need investment • Increasing signaling load across the network • Need Scalable solutions • Major network security concerns 6
  7. 7. Aspects of Mobile DataOffloading Packet Core Access … H(e)NB Network P-GWY Offload 3 Gateway WiFi (SIPTO) Small Cell LIPA 2 Internet 1. MacroCell Relief • RF access with WiFi, H(e)NB & Small Cell 2. Local IP Access (LIPA) • Allows direct IP access 3. Packet Core Optimization • Offload in the RAN to reduce traffic with Network Offload Gateways 7
  8. 8. Data Optimization Through SmartNetwork Offload Gateway Increase in Flat All-IP Emergence Need to Mobile Data Networks of HetNets Differentiate Usage Smart Gateways • Operator managed traffic offload • Offload heaviest traffic before it hits the core network • Alignment with lawful intercept / CALEA • Offload while ensuring compliance • Edge functionality 3GPP Specified Traffic • Deliver capability as value add to Offload Function (TOF) at Iu-PS gateways deployed at the edge of the network 8
  9. 9. LIPA: Local Data Optimization MME / S-GW MME / S-GW MME / S-GW S1 S1 S1 S1 S1 S1 S1 S5 S1 S1 HeNB GW X2 eNB eNB E-UTRAN S1 S1 X2 X2 eNB HeNB HeNB HeNB S1 MME HeNB HeNB New Function – L-GW SEG GW S1- U EPC Standardized LIPA S5 LGW SGi Enterprise / Residential LAN 9
  10. 10. Small Cells and WiFi – Complementary WiFi is a criticalcomplement of small cellsSmartphones are now • Operators see a need to integrate WiFi with their pico / supporting WiFi metro cells WiFi alone may be • Short range requires too many sites w/ WiFi aloneinsufficient for carrier • Concerns of poor performance for unmanaged WiFi deployed WiFi Multi-mode • Increase usage, value • Minor impact on CapEx dramatically • TCO dominated by per site,improves economics power, backhaul 10
  11. 11. Multi-Mode: WiFi and Small Cell in a Box OperatorManagement ofboth small cell •TR-69 based unified & WiFi AP: management Residential & open access Local “Gateway” •Similar to Enterprise Femto Function for controller Integrating •Small cell based Data Offload small cell & extended to multi mode APWiFi Networks •Seamless Handovers: Macro to Value added Femto to Local WiFi functions for •Flow Mobility •Flow Splitting Service Continuity •Similar to Femto & Enterprise across small IT networks cell & WiFi Networks 11
  12. 12. Example of Operator-Driven, Access-Side Bandwidth Optimization Function Policy Enforcement solutions supporting Broadband Traffic segregation, mobility across available networks Policy Control and aggregation to service provider Flow 3G QoS and Segregation Analytics & Mobility Bandwidth WiFi Policy Aggregation Management Engine & Protocol Client LTE IP layer Bandwidth Management Functions & Policy (in service providerIP Flow Segregation (different flows on different networks) network) 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) + 12
  13. 13. Poll Question  Which of the following technologies are being pursued by mobile operators for mobile data offload? (Select all that apply) 1. WiFi Offload 2. Small Cells 3. SIPTO/LIPA 4. Offload Gateway 13
  14. 14. Benefits of Wi-Fi Offloading Offload selected subscribers from cellular to Wi-Fi access Utilize services of existing Packet Core networks for both access types End user benefits Operator benefits • Faster data connections and enhanced • Network cost reduction experience • Selective traffic offload to Wi-Fi • Seamless and secured access to services • High performance indoor via mobile and Wi-Fi networks coverage and capacity • Extended coverage • Increased customer satisfaction • Gain visibility and control for Wi- 2G/3G/LTE Fi traffic • Allows to integrate Wi-Fi access into packet core and re-utilize its Mobile Core existing functionality and services Services Internet Wi-Fi Services 3GPP Standards based solution • Ensures compatibility to large number of devices and easier integration in multi-vendor networks 14
  15. 15. Mobile Security Network Transition WiFi Offload  Carriers are increasing their usage of Small Cell and WiFi TWG VoLTE, Offload for consumer data Roaming, IMS, 2015 services Shared Infrastructure  Applications such as LTE-A, 4G/LTE LTE-VoIP will require more ePDG 2014 access to carrier’s network via Small Cell and WiFi offload Carrier Wifi  Mobile networks will become more susceptible to intruders 2013 and attacks  3GPP Standards are in place for 3G Mobile Network Security TTG/PDG Now  More carrier-grade security products will be required with the highest performance available Market Sizing 15
  16. 16. Integrated WiFi and 3GPP network4G/LTE Based MME S-GWY P-GWY eNB 4G S1 S5 (Trusted) WiFi Based S2a Optimization HSS STa/SWa AAA AAA S2b Internet / Trusted Operator Services SWm WiFi Access AP UE Internet ePDG (Untrusted) IKE/IPSec (SWu)Key properties Key Use Cases:• Introduces trusted WiFi access with access into • Support carrier deployed WiFi EPC… cellular credentials reused… no IPSec at UE • Support roaming partners that support• Includes mobility support between WiFi & 3GPP trusted WiFi access access for cases where WiFi traffic is sent to EPC• Supports internet/local IP access at WiFi network as well as access into EPC 16
  17. 17. Key Risks and Impacts Security Impacts • More mobile authentication resulting from mobility • Small cells whether WiFi or cellular based are placed into environments where they are exposed to theft & tampering • Both network control and user communications need protection considering transport may not be sufficiently secure • More interfaces to secure both within operator & WiFi network and across operator networks Increased signaling load and Mobility • Growth of LTE networks drives more signaling traffic in network • More mobility events to process amongst WiFi, Small Cells, and Macro Cells… cells ranging from 10s of meters to 500m s 17
  18. 18. WiFi & Small Cell ThreatsCombined MME P-GWY Backhaul S1u S5 Macro Cell S-GWY SEG Untrusted IP Small Cell Network HSS S2b A C B AAA AAA WiFi Internet AP D UE SWu ePDGThreats at various points--- many common threats between WiFi & Small CellA: Mobile Device: Compromised device meant to attack small cell/APsB: Air Interface: Impersonate legitimate access (AP/small cell), attack weak over the air security (AP)C: Exposure in public placement: Theft of APs/small cells, replacement on site of AP/small cell withhacked s/w, attack communication interfaces (physical cabling at site)D: Transport/Network communications: Impersonate APs and/or subscriber devices, snoop subscriberpackets, snoop network control packets, alter network control &/or subscriber communications 18
  19. 19. Types of WiFi Access 19
  20. 20. Untrusted with LTE/EPCSWm DIAMETER Interface: • Authentication using EAP-AKA or other on board credentials • Subscriber & policy profile accessePDG session management: • Provide access into EPC • Mapping between IPSec and GTP traffic • Session supervision Untrusted LTE WiFi OffloadS2b interface: GTPv2 & PMIP • GTPv2 & PMIP for P-GWY access Operator • Interwork IPSec to GTP/PMIP AAA SWmSWu Interface UE S2b • Attach/Detach & Mobility SWu GTPv2 / Untrusted • Authentication (IKEv2 w/EAP-AKA) PMIP WiFi • IPSec to protect user traffic ePDG P-GWYSuited to cases of residential or enterprise WiFi wherecommunications between WiFi network and packet core are untrusted 20
  21. 21. Trusted WiFi AuthenticationSTa/SWa DIAMETER Interface: • User authentication reusing cellular credentials (EAP-AKA/EAP-AKA’) • Subscriber & policy profile access for WiFi access • Authorization for access to InternetWiFi Security Trusted WiFi Authentication • Reuse WiFi authentication procedures EAP-AKA (WPA2/802.1x) 802.1x WiFi AAA STa/SWa • Secure WiFi air interface (WPA2) Operator AAAWiFi Mobile Access Gateway Wifi • Support mobility within WiFi network UE • Aggregation WiFi Mobile Internet • WiFi network access to Internet/IP network Access Gateway Suited to commercial WiFi access cases where the service is Internet Access 21
  22. 22. Trusted LTE WiFi Offload w/EPC AccessSTa DIAMETER Interface: • Support authentication reusing cellular credentials • Subscriber & policy profile access for WiFi access • Authorization for EPC accessWiFi Security • Same as trusted WiFi authentication Trusted WiFi Access with EPC AccessWiFi Mobile Access Gateway • Support mobility within WiFi network EAP-AKA • Aggregation 802.1x WiFi STa AAA • WiFi interworking point to operator Operator Trusted AAA PMIP orTWG (Trusted Wireless Gateway) Wifi TEP • Operator interworking to WiFi Network UE S2a WiFi Mobile TWG GTP/ • Policy enforcement Access PMIP Gateway P-GWY Suited to cases of mobile operator deployed WiFi and trusted roaming partner WiFi 22
  23. 23. Addressing Signaling Load Challenges ‘Always on’ devices and LTE data speeds => More control traffic Operators have begun to see theNext generation designated Signaling signaling traffic growth and impact on protocol for All IP networks => network Diameter Many nodes impacted … MME, AAA, HSS, and PCRF (DIAMETER-heavy elements) 23
  24. 24. But How??? Efficient management and scaling of signaling traffic Need for diameter routing agents and proxies to distribute traffic DIAMETER & SCTP Scaling via multi threading and fast path Diameter is Pervasive! 24
  25. 25. Radisys Diameter Difference  1) Unparalleled Performance • Over 60K messages per second per blade • Exceeding performance demands of today’s AAA networks  2) Comprehensive Feature Set Markets Leading • All LTE, ETSI, and IMS interfaces supported Diameter • SDK for rapid application development  3) Deployment Proven Product • Multiple Tier 1 design wins including EPCs • Over 4 years of product shipments 25
  26. 26. The Trillium SCTP Fast Path Difference  Groundbreaking performance • Achieved through advanced hardware + software optimization • Solving critical problems in LTE and small cell networks  Deployment proven software • Built from industry leading Trillium protocol IP • Over 20 years of successful deployments Capability Uniquely  Turnkey solution Available from • Hardware and software from a single source Radisys! • Integrated, tested and packaged system > 1M aggregate (inbound/outbound) SCTP packets per second 65,536 dual-homed associations with 10 inbound & outbound streams 26
  27. 27. Final Thoughts Data offload - key to handle increasing data demand Security is required for Mobile Offloading Protocol Solutions Radisys Provides • High performance protocol • Complete small cell solution w/ integrated WiFi implementation • High capacity Hardware • Multi-threaded multi-core adapted platforms to scale functions • Deployment proven • Security Network elements • Extensively Interoperability tested • High performance SCTP/DIAMETER solutions… and field hardened • Protocol solutions addressing • Standard APIs for customization of new interface demands requirements • Professional services & pre- 27 integration
  28. 28. Q&A Contact us! Jeff Sharpe Renuka Bhalerao Michael Thomas To register for upcoming webinars: ~Please fill out our short survey~ THANK YOU FOR ATTENDING! 28