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Accelerating IMS Deployment


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Accelerating IMS Deployment

  1. 1. Accelerating IMS Deployment Gibson Ang Sr. Product Manager
  2. 2. Carrier Goal = Single Common Core Service Agnostic Femtocell Access Agnostic Location Location Agnostic Fixed-Line BAN Web/Gaming Roaming Subscriber WLAN IP/ UMA Pre-IMS/ Video/IPTV IMS/NGN Core Yo George Sox win again! :) UMTS RAN Data/IM 3GPP2 RAN VoIP/PTT SUBSCRIBER ACCESS NETWORKS OPERATOR CORE SERVICES 2
  3. 3. Business Goals • Remove Silos • Accelerate Service Rollout • Increase Subscriber Revenue – Increased ARPU – Increased Stickiness • Beat Competition Subscriber Generated Growth While Reducing Costs 3
  4. 4. Architectural Goals • FMC • IP Enhancements – Mobility - Seamless Roaming – Security – Single Access-Agnostic – End-to-End QOS Backbone – Charging/Billing – Single Location-Agnostic Backbone • Services – Single Service-Agnostic Backbone – Multi-Service – Service Blending Value Services = More than a Bit-Pipe Carrier 4
  5. 5. Enhanced Customer Experience • Personalization – Location-Aware, Time-Aware, Availability-Aware – User-Controlled Policies and Account Profiles • Unification – Terminals – Applications Customer • Socialization Experience – VoIP Blended Services (Presence, IM) – Ad-Hoc Social Networking • Automation – Contextual Text Messaging – Contextual Advertising The number of worldwide mobile connections is expected to grow 50% from 2.7 billion in 2006 to 4 billion in 2010. Wireless Intelligence 5
  6. 6. IMS Architecture – Service Delivery Architecture 6
  7. 7. IMS Market Maturity, Demand Drivers and Risk Factors 7
  8. 8. Global Service Revenue 8
  9. 9. Growth in IMS Systems Revenue Globally 9
  10. 10. IMS Services Goals Guaranteed Seamless Multi-Service Delivery To Mobile and Fixed-Line Subscribers 1) Integrate different access networks into common evolving IP, Pre- IMS, IMS, or NGN core network 2) Allow authenticated subscribers access to authorized services from any location/network 3) Deliver End-to-End Per-Flow QoS 4) Terminate Secure Tunnels + Encrypt/Decrypt 5) Fraud Prevention - Prevent Theft of Bandwidth and Services 6) Provide DOS Protection to UE and the network 7) Serve Lawful Intercept Control, Media, and Data 8) NAT for Public <-> Private Addressing 9) Seamless Mobile IP Roaming
  11. 11. Operator Challenges to Implementing IMS 1. Vendors/Product Availability 2. Internal business processes 3. Interoperability 4. Interfaces from infrastructure to applications 5. Integration with legacy networks 6. Interconnect agreements 11
  12. 12. Security Application Layer  SIP, RTSP, RTP, and HTTP Attack Transport Layer  TCP and UDP Layers Network Layer  IP and ICMP • Malformed packets Revenue • Unauthorized access DoS • Floods Attacks • Theft of service Attacks • DoS attacks • Theft of bandwidth • Hijacking • Mutual Authentication Secure • IPSec or TLS Encrypted Signaling Access • IPSec Encrypted Bearer Data 12
  13. 13. 3G Policy Infrastructure for E2E QoS Rf /Ro Ut Charging AS Functions Sh ISC Dh Policy UPSF Dx SLF Rf /Ro Iw Network Cx Ib IWF Control Attachment Mw Policy Subsystem I/S-CSCF Mw/Mk/Mm Mk IBCF Ic « Core IMS » Control e2 Mr Mi BGCF Mk Other IP Networks Mw Mj Gq ' P-CSCF Mw MRFC Mg MGCF Ie SGF Policy Decision PSTN/ISDN Gq ' Mp Mn Gm S-PDF Resource and Admission Control Subsystem Ia Ia MRFP T-MGF UE A-BGF IP Transport (Access and Core) C-BGF I-BGF Policy Enforcement 13
  14. 14. Secure Entry for Untrusted 3rd-Party Applications Enterprise Applications 3rd-Party IMS Applications Operator IMS Applications Web SIP Web SIP Sh Multi-Service Gateway: AAA- UE: User Equipment Stateful Firewall RADIUS P-CSCF: Proxy Call and Session Control Function I-CSCF: Interrogating Call and Session Control Function DOS Protection Multi- Rate-Limiting HSS S-CSCF: Serving Call and Session Control Function Service HSS: Home Subscriber Server Per-Flow QoS PDF: Policy Decision Function Aggregate QoS Gateway Cx Gm Interface = IPsec/SIP NAT/NAPT Cx ISC Gq Interface = Diameter Mw interface = SIP Encrypted Signaling Mirroring CDRs/SDRs SIP Overload SIP Signaling Mw Mw Access I-CSCF S-CSCF UE IPSec P-CSCF Network Gm Bearer Plane 14
  15. 15. Conclusions • IMS enables revenue generating services for Subscriber-Based Growth. “Carrier is more than Bit-Pipe Carrier” • IMS reduces costs by removing silos and building common multi-access core • IMS enhances network for multi-service delivery 15
  16. 16. Questions & Comments 16