1. Q1/13 - NGN Initial Considerations
• NGN difficult to define in terms of:
• specific technologies
• specific architecture
• topology
• Need to avoid technology traps
• Identify high-level paradigms
• separation of concerns
• Identify emerging NGN-generic issues
• Architectural principles
• OSI model relevance
• Need for NGN models to show separation
of concerns

2. Vertical considerations
Control Plane
Management Plane
User Plane
Application Related Layer(s)
Control Plane
Management Plane
User Plane
Switching/Routing Related Layer(s)
Control Plane
Management Plane
User Plane
Transmission Related Layer(s)
3 Layers - Terminology?

3. Horizontal considerations - Service Separation
Application
Server
Switched
Core
Packet
Network(s)
Access
Transport
Protocol
Interworking
Single point Or
Distributed
Users
Separation of Services from Network

4. No particular prescribed protocol hierarchy:
Protocol Layering considerations
Service Mapping
&
Protocol Translation
Protocol X
Protocol Z
Service Mapping
&
Adaptation
Peering Relationship
Layering Relationship
Protocol Y
No particular prescribed protocol hierarchy:
Any X over any Y

5. Protocol end point terminationsB C D
End-to-end is a relative term

6. Functional Architecture Considerations

7. Functional Architecture Considerations
ETSI Model

8. Transport Convergence

9. Identification and Location
Network
Device Mobilty Domain
User/Service
Mobilty Domain
Points of Attachment (POA) fixed or wireless
Communications Objects (mobile with transient binding to POA)
Transient Binding (mobile with transient binding to device/service)
Legend:

10. Q1/13 - NGN Initial Considerations
• Identify high-level paradigms
• Separation of concerns, services from networks
• Service Platform approach
• Identify emerging NGN-generic issues
• Architectural principles
• OSI model relevance
• Need for NGN models to show separation
of concerns via functional architectures
• Access/Core Separation
• Competitive Access to Services
• “Access Network” to include switching/routing
• Multiple transport technologies, Ethernet, ATM,
IP, MPLS in various combinations
• Global Mobility/Roaming (fixed and wireless networks)
• Need for new name/naming resolution mechanisms