Transcript NGN 2

NGN Evolution & its
Overview
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New Services Evolution
Desire for a new platform:
User requirements increased — MORE BANDWIDTH
Technology growth — INTELLIGENT NODES, SWITCHES
Fast & reliable exchange of information— HIGH TRANSMISSION SPEED
Arrival of new Telecom services, fast packet switching and enhanced
VVD laid the foundation of a New Generation of Networks or NGN for
new generation of services
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What Is…
NGN is Voice Over IP, bypassing the regular switches to
save the investment on Switches and Trunks.
NGN is Network Convergent Technology, combining
wireline (PSTN), wireless (GSM, CDMA and 3G) and packet
data network together, for Integrated Voice, Data and
Multimedia Services.
NGN is a Flat Telephone Network over Packet Data
Network, instead of traditional Hierarchy structured
telephone network with reduced investment.
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Why NGN
Increased demand for bandwidth is not possible through
existing PSTN.
Requirement for new services.
Telecom operators want to reduce the OPEX and CAPEX (Need
one common network for all services).
Future proof network to handle Voice, Data and Multimedia.
Optimising and simplifying transmission links.
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NGN - Drivers
Demands for
new services
Cope with
IP & mobile
environment
competition
Next Generation
Networks
Diversity in Technologies
Operation Cost
QoS configurability
& verification
Meet capacity
On-demand request
Rapid introduction of new technology
Voice/Data and wire/wireless integrated management
Interoperability: Multi-vendor equipment
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Legacy Networks & NGN
Public Data Network
SERVICE
ACCESS
CATV
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VIDEO
NGN Core Network
data
IP/MPLS Multi-Service Bearer
data
Copper
VIDEO
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DATA
VOICE
VOICE
SERVICE
ACCESS
GSM/CDMA
SERVICE
ACCESS
PSTN
VOICE
Legacy Networks were dedicated and
isolated networks with service specific
signaling and routing for service connection
Limited Broadband and Multimedia services
High OPEX
High Service cost
Long Service provision time
Inefficient O&M
Too many sites, too many types of nodes
Outdated and aged Exchanges
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Optical
Wireless
NGN has a common IP core and provide nomadically
accessible IP applications regardless of a specific
access link or user device
Provide integrated services instead of limited service
Centralized management and simple network structure,
reduce OPEX
OPEX Saving from reduction of transmission, room
space, O&M center, etc.
Realize the fast and cost effective new service
deployment.
• Pave the way to all-IP network
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Voice and Data Networks
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Centralized vs Distributed Architecture
Centralized Model
Distributed Model
O&M
Charging
O&M
Application
Servers
Charging
Basic & Supplementary
Telephony services
SoftSwitch
Phone
T
D
M
Time Slot
Switching
POTS
Line
Card
H.323/SIP
H.248/MGCP
Call Control
T
D
M
IP
Packet Network
T
D
M
IP
MG
Trunk
Card
IP Phone
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Harmonization through Standardization
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Characteristics of NGN
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Packet-based transfer
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Separation of control functions among
bearer capabilities, call/session, and
application/ service
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Decoupling of service provision from
network, and provision of open interfaces
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Support for a wide range of services and
applications
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Broadband capabilities with end-to-end
QoS
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Characteristics of NGN
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Interworking with legacy networks via
open interfaces
Generalized mobility
Unrestricted access by users to
different service providers
Converged
services
between
Fixed/Mobile
Compliant with all Regulatory
requirements, for example concerning
emergency communications and
security/privacy, etc
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NGN Solution Benefits
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Structured network architecture, smooth
evolution, variety of services available
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Rapid Service provisioning
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Cost-effective multi-service access
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One IP based multi-service bearer network
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Retain/expand customer base and increase
ARPU (Average Revenue Per User)
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FMC-Fixed Mobile Convergence Synergy
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IMS Ready
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NGN Solution Benefits
OPEX Savings
 Reduction in number of Switching nodes and transmission
links
 Replacement of obsolescent
generation IP Solutions
equipment
with
new
 Lower OPEX for new NGN nodes: easier network reengineering, less power consumption, less space needed
CAPEX Savings
 Pay as you grow for Network expansion
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Contrast between PSTN and NGN
Intelligent Service Server
SoftSwitch
Switching Array
IP Core
Trunk Module
Trunk
Gateway
Service Server
CPU
Trunk
Gateway
Trunk
Gateway
Signaling
Module
SS7
Signaling
Gateway
User
Access Module
User Access
Gateway
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PSTN End-Office Optimization and Reconstruction Solution
PSTN
Gateway
Toll
Office
OS
NGN
APP
NMS
SS
SCP
iHLR
FE/GE
MSG7200 TG
MSG 9000
Tandem
Office
Data Network
FE/GE
E1/SDH/SONET
SG7200 SG
LE
LE
AN or
Remote Unit
FE/GE
Media Gateway
E1/SDH/SONET
Reconstructe
d End Office V5.2
E1/MSTP/Build-in
V5.2 PDH/Build-in SDH
OLT
ONU
AN ONU
ONU MSANONU
Twisted-pair Cable
ONU
Twisted-pair Cable
Subscriber
Remote Module
OLT
ONU
End Office to beReconstructed
Billing &
Customer
Care
Twisted-pair Cable
Twisted-pair Cable
ISDN Subscriber
ISDN
Subscriber
DSL Subscriber
DSLSubscriber
DSL Subscriber
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