1. Accelerating IMS Deployment
Gibson Ang
Sr. Product Manager

2. Carrier Goal = Single Common Core
Service Agnostic
Access Agnostic
Location Agnostic
Femtocell
Location
Fixed-Line BAN
Web/Gaming
WLAN
Roaming Subscriber
IP/
Pre-IMS/
IMS/NGN
Core
UMA
Video/IPTV
Yo George
Sox win
again! :)
Extend reach of service offerings outside native access footprint
Increase the stickiness of service offerings through innovative packaging of existing and newer services across both fixed and mobile networks
There will not be a single “FMC Killer Application”
Service providers will not bet the farm on just one FMC solution, but rather invest in all viable ways to reach customers
The goal for service providers is to improve competitive capability through the diversification of their service offerings, leveraging voice, video, and data applications delivered over any network
FMC solutions differ in ways of authenticating the end-device/user
FMC solutions differ in ways of securing access for the end-device/user
Bandwidth, throughput, QoS, and security requirements differ between each type of FMC method
FMC typically requires backhauling or “always-on” encrypted sessions, which translates to higher packet transport costs
Backhauling of encrypted sessions also means service performance inefficiencies that affect : user-experience and rate of adoption of new offering by the user
Unbundling part or all of the FMC network is extremely challenging: For instance, to support a Fixed-Mobile Virtual Network Operator (FMVNO) business model
UMTS RAN
Data/IM
3GPP2 RAN
VoIP/PTT
SUBSCRIBER
ACCESS NETWORKS
OPERATOR CORE
SERVICES

3. Subscriber Generated Growth While
Business Goals
Remove Silos
Accelerate Service Rollout
Increase Subscriber Revenue
Increased ARPU
Increased Stickiness
Beat Competition
Subscriber Generated Growth While
Reducing Costs

4. Architectural Goals FMC Mobility - Seamless Roaming
Single Access-Agnostic Backbone
Single Location-Agnostic Backbone
Services
Single Service-Agnostic Backbone
Multi-Service
Service Blending
IP Enhancements
Security
End-to-End QOS
Charging/Billing
Value Services = More than a Bit-Pipe Carrier

5. Enhanced Customer Experience
Personalization
Location-Aware, Time-Aware, Availability-Aware
User-Controlled Policies and Account Profiles
Unification
Terminals
Applications
Socialization
VoIP Blended Services (Presence, IM)
Ad-Hoc Social Networking
Automation
Contextual Text Messaging
Contextual Advertising
Customer
Experience
The number of worldwide mobile connections is expected to grow 50% from 2.7 billion in 2006 to 4 billion in Wireless Intelligence

6. IMS Architecture – Service Delivery Architecture

7. IMS Market Maturity, Demand Drivers and Risk Factors

8. Global Service Revenue

9. Growth in IMS Systems Revenue Globally

10. IMS Services Goals Guaranteed Seamless Multi-Service Delivery
To Mobile and Fixed-Line Subscribers
Integrate different access networks into common evolving IP, Pre-IMS, IMS, or NGN core network
Allow authenticated subscribers access to authorized services from any location/network
Deliver End-to-End Per-Flow QoS
Terminate Secure Tunnels + Encrypt/Decrypt
Fraud Prevention - Prevent Theft of Bandwidth and Services
Provide DOS Protection to UE and the network
Serve Lawful Intercept Control, Media, and Data
NAT for Public <-> Private Addressing
Seamless Mobile IP Roaming 10

11. Operator Challenges to Implementing IMS
Vendors/Product Availability
Internal business processes
Interoperability
Interfaces from infrastructure to applications
Integration with legacy networks
Interconnect agreements

12. Security Malformed packets Floods Unauthorized access DoS attacks
SIP, RTSP, RTP, and HTTP
Application Layer
Attack
Layers
Transport Layer
TCP and UDP
IP and ICMP
Network Layer
Malformed packets
Floods
DoS attacks
Hijacking
Unauthorized access
Theft of service
Theft of bandwidth
Revenue
Attacks
DoS
Attacks
Mutual Authentication
IPSec or TLS Encrypted Signaling
IPSec Encrypted Bearer Data
Secure
Access 12

13. 3G Policy Infrastructure for E2E QoS
Control
Policy
Control
Policy
Decision
S-PDF Ia Ia
C-BGF
A-BGF
Policy
Enforcement

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:
Stateful Firewall
DOS Protection
Rate-Limiting
Per-Flow QoS
Aggregate QoS
NAT/NAPT
Encrypted Signaling
Mirroring
CDRs/SDRs
SIP Overload
AAA-
RADIUS
UE: User Equipment
P-CSCF: Proxy Call and Session Control Function
I-CSCF: Interrogating Call and Session Control Function
S-CSCF: Serving Call and Session Control Function
HSS: Home Subscriber Server
PDF: Policy Decision Function
Gm Interface = IPsec/SIP
Gq Interface = Diameter
Mw interface = SIP
HSS
Multi-
Service
Gateway Cx Cx
ISC
Access Network
I-CSCF
S-CSCF UE
SIP Signaling
P-CSCF Mw Mw
IPSec Gm
Bearer Plane

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

16. Questions & Comments