IP Multimedia Subsystem (IMS)

Drivers, Industry Analysis, and Architecture

Publication Date	March 2006
Publisher	KAZAM Technologies Inc.
Product Type	Report
Pages	72
ISBN Number
Product Code	KAZ00006

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Summary

This presentation material is a tutorial for IMS (IP Multimedia Subsystem). IMS blends internet principles with 3G wireless network capabilities to create a unified platform for the delivery of next generation converged services, independent of access technologies. Originally developed for GSM networks as an evolution path to 3G network, it has been embraced by cable companies and telephony operators today.

This material will discuss IMS technology in the following areas: IMS introduction, architecture and functionality, adoption drivers, standards assessment, and industry analysis.

Content

Objective of this document
- Introduction to IMS
- Evaluate standards readiness
- IMS architecture, features, and elements
- Recommendation on possible approach
Overview of IMS technology
- Definition of IMS
- IMS reference model
- Converged network layered model
  - IMS in the session control layer
- Key value proposition for IMS
  - Revenue generation
  - CAPEX
  - OPEX`
IMS Adoption Drivers
- Market drivers
  - Today's telecom network challenges
  - Key market trends
    - Convergence
    - Blending services vs. bundling services
    - Efficient service creation & delivery
  - Key challenges for traditional operators
    - Disruptive technologies
    - New business models
    - Emerging players
- Service drivers
  - IMS enables the "Killer Environment"
  - New service and applications
    - Presence enabled active address book
    - Fixed mobile convergence
    - User and situation specific advertising
  - Business communications service bundle
  - Other example services
    - Full duplex video
    - Enhanced full duplex voice
    - Video streaming
    - Enhanced MMS
    - Game sessions
    - IM
    - PTT/PoC
  - Keys to new IMS services
    - Session setup between end points for any media type
    - Mix media types within a session
    - Multiple varying QoS legs per session
    - Easy-to-Use simple UI
  - Benefits offered by IMS approach
    - Incremental service revenue
    - Common network elements among multiple services
    - Network cost savings
    - Service interaction management
- Technology and operational drivers
  - Technology and operational
    - Push IP to the end user device
    - Shared network resource
    - Centralized administration, common management, and reporting
    - Optimized for minimal air interface and core network impact
    - Open interfaces
    - Common IP platform for wireless and wireline networks
    - Common element and investment reuse
    - End-to-End QoS & resource allocation
    - Common charging interfaces
    - Industry-wide & standards bodies endorsements
    - Increases vendor neutrality
  - Faster & Cheaper service launch
Industry Analysis
- Global operator analysis
- IMS current global deployment status
- Vendor analysis
- Common vendor differentiators for IMS
- Hype or reality
  - Operators' perspective on IMS
Standards Assessment
- IMS standards
- 3GPP2, OMA and IETF Complementary
- Harmonized IMS network architecture
- Approved 3GPP R5 specification
- 3GPP2 progress
- Summary of standards
IMS Architecture and Functionality
- IMS-based wireless system/service architecture
- IMS elements
- Charging system - Online and offline
- Peripheral
- IMS core protocol
Summary & Recommendations
- Summary and benefits
- Recommended approach services
- Recommended approach technology and operation
- Recommended approach - organization
- References