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Next Generation
Network
Preared By
Harit Patel (Roll No.62)
Guided By
Mr. Bhargav Shah
Outlines
Introduction
NGN architecture
IP multimedia subsystem
NGN protocols & services
Quality of service
NGN challenges
NGN future
What is NGN?
Multi-service network
Separated planes
Open interfaces
A packet mode technology
Guaranteed QoS
Supports generalized mobility
Why NGN?
Fusion of services and markets
Common network
IP in back bone
Split of different layers
Services
NGN architecture
Network partitioning with respect to IMS
IMS Functional Entities
NGN Signaling protocols
SIGTRANbetween PSTN/PLMN and IP
networks
H.248between Media Gateway and
Media Gateway Controller
SIP,SIP-T/SIP-I between two IP networks
H.323/SIP-T/SIP-I For international Connectivity
RTP/RTCPFor delivery of content
(voice/data/video etc.)
NGN Protocols
NGN Service
Figure 4.1: NGN Service Drivers [6]
Quality of Service
Latency - IPTD
Jitter - IPDV
Packet Error - IPER
Packet Loss - IPLR
Toll Quality
Call Completion Rate - TCBH
Availability of Network
NGN Challenges
Standardization
Laws in each country need to be suitably amended
Cost issues
Developing countries are not yet well versed with the
advancements
NGN Future
Low cost devices
Multi party conferencing
Education
Opens up tremendous opportunity
Conclusion
Questions?