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NGN Evolution & its Overview

Desire for a new platform:User requirements increased — MORE BANDWIDTH

Technology growth — INTELLIGENT NODES, SWITCHESFast & reliable exchange of information— HIGH TRANSMISSION SPEED

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New Services Evolution

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

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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What Is…

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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

Next Generation Networks

Next Generation Networks

Operation Costcompetition

QoS configurability& verification

Meet capacityOn-demand request

Rapid introduction of new technology Voice/Data and wire/wireless integrated managementInteroperability: Multi-vendor equipment

Rapid introduction of new technology Voice/Data and wire/wireless integrated managementInteroperability: Multi-vendor equipment

Demands for new services

Diversity in Technologies

Cope withIP & mobileenvironment

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IP/MPLS Multi-Service Bearer

NGN Core Network

VIDEOVOICE DATA

Copper Optical Wireless

PSTNPSTN

GSM/CDMAGSM/CDMA

Public Data NetworkPublic Data Network

CATVCATV

SE

RV

ICE

SE

RV

ICE

SE

RV

ICE

AC

CE

SS

AC

CE

SS

AC

CE

SS

VOICE

data

data

VIDEO

VOICE

Legacy Networks & NGNLegacy Networks & NGN

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

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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Distributed Model

MG

IP

SoftSwitch

IP

H.248/MGCP H.323/SIP

TDM

TDM

Packet Network

Application Servers

O&M

Charging

IP Phone

Centralized Model

Call Control

Line Card

Trunk Card

Time Slot Switching

TDM

O&MCharging

POTS

Phone

Basic & Supplementary Telephony services

Centralized vs Distributed ArchitectureCentralized vs Distributed Architecture

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Harmonization through Standardization

Characteristics of NGNCharacteristics of NGN

Packet-based transfer Separation of control functions among

bearer capabilities, call/session, and application/ service

Decoupling of service provision from network, and provision of open interfaces

Support for a wide range of services and applications

Broadband capabilities with end-to-end QoS

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Characteristics of NGNCharacteristics of NGN

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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Structured network architecture, smooth evolution, variety of services available

Rapid Service provisioning Cost-effective multi-service access One IP based multi-service bearer network Retain/expand customer base and increase

ARPU (Average Revenue Per User) FMC-Fixed Mobile Convergence Synergy IMS Ready

NGN Solution Benefits

NGN Solution BenefitsOPEX SavingsReduction in number of Switching nodes and transmission

linksReplacement of obsolescent equipment with new

generation IP SolutionsLower OPEX for new NGN nodes: easier network re-

engineering, less power consumption, less space needed

CAPEX SavingsPay as you grow for Network expansion

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SignalingModule

Trunk Module UserAccess Module

Service ServerSoftSwitch

TrunkGateway

TrunkGateway

TrunkGateway

SS7SignalingGateway

Contrast between PSTN and NGN

User AccessGateway

CPU

Switching Array

Intelligent Service Server

IP Core

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PSTN End-Office Optimization and Reconstruction SolutionPSTN End-Office Optimization and Reconstruction Solution

PSTN NGN

ISDN Subscriber

DSL Subscriber

ISDN Subscriber

DSL Subscriber

Data Network

SS

Tandem Office

Gateway Toll

Office OS SCP

End Office to be-Reconstructed

LE LE

Media Gateway

E1/SDH/SONET

V5.2

FE/GE

Remote Module

Billing & Customer Care

NMS APP

iHLR

Subscriber

MSG7200 TGMSG 9000

SG7200 SG

AN orRemote Unit

Reconstructed End Office

FE/GE

FE/GE

DSLSubscriber

OLT

ONU

ONU

ONU AN

OLT

ONU

ONU

ONU MSAN

V5.2

E1/SDH/SONET

Twisted-pair Cable Twisted-pair Cable Twisted-pair Cable

Twisted-pair Cable

E1/MSTP/Build-in PDH/Build-in SDH