NGN û Next Generation Network_Shivpreet, Abhijeev

8/9/2019 NGN Next Generation Network_Shivpreet, Abhijeev

1/29

NGN Next GenerationNetwork

Submitted ByShivpreet Singh Sandhu


2/29

2

Principles of telecommunication networksUsing the same access line, circuit and packet networks utilize different

mechanism to provide services and to share resources.

9%

( )Circuit switched network schematic

( )Packet switched network schematic

access line

access line


3/29

3

Existing networksToday operators run different networks which are interconnected.

. .e g G S M

. .e g P S T N . .e g In te rn e t

Cen

tr

al

Func

ti

on

s

Transport

Control

Services

Transport

Control

Services

Transport

Control

Services

Access

Cen

tr

al

Func

ti

on

s

Transport

Control

Services

Transport

Control

Services

Transport

Control

Services

Access

fixe d v o ice

circu it sw itch e d

m o n o lith icstru ctu re

m o b ile v o ice

circu it sw itch e d

m o n o lith icstru ctu re

d iffe re n t se rv ice s

p a cke t sw itch e d

m o d u la r stru ctu re

Variety of networks


4/29

4

Drivers and motivation for NGN deployment.External drivers and internal motivation put pressure on operators

NGN deployments.

d e ve lo p n e w servicese a sie r a n d fa ste r

e n h a n ce fle xib ility

re d u ce o p e ra tio n a lex p e n d itu re s

re p la ce o f o ld p la tfo rm s

a t th e ir e n d o f life cy cle

m a ssive g ro w th o f d a tatra ffic

fla t g ro w th o f v o icem arket

m a ssive a cce ssco m p e titio n

m a tu rity o f IP te ch n o lo g y

op en stan da rd s an da rch ite ctu re s

Deployment of Next Generation Network

9%

Operators MotivationDrivers


5/29

5

Basic concept of Next Generation

Network.A Next Generation Network can be defined by six

key criteria.

N G N

c o n c e p t

in te g ra tio n o f ex istin g in fra stru ctu re

-p a cke t orie n te d n e tw o rk

su p p ort b

ro a d v a rie ty o f se rv ice s

o p e n n e ss a n d fle xib ility re g a rd in g n e w se rv ice s

se p a ra tio n in to d i

ffe re n t la y e rs u sin g o p e n in te rfa ce s

-a p p licatio n fo cu sed a ccess in d e p e n d e n t


6/29

6

Basic concept of Next GenerationNetwork.

An IP-based NGN is able to support a broad variety of services.

Variety of services

Vo ice o ve r IP

D ata

M u ltim e d ia
http://images.google.de/imgres?imgurl=web.sanyo.de/bilder/bilddb/SANYO_hifi_portables_Dc_088ct.jpg&imgrefurl=http://web.sanyo.de/support/press_img1.asp?kath=hifi_portables&h=865&w=1417&prev=/images?q=Hifi+Anlage&start=20&svnum=10&hl=de&


7/29

Transition to NGN: First wave

Growth of Internet and other IP-based networks withtheir

requirements for bandwidth and capacity has driven rapidinnovation in telecommunication access and transport

networksExamples:

leveraging copper wire last-mile networksthrough digital subscriber line (DSL) technologies re-architecturing of cable networks to support IP services

advances in optical networking technologies (e.g.PON)


8/29

Transition to NGN: Second wave

Ongoing trend towards integration & interoperability ofIP-

based and PSTN network services and applications Emergence of differentiated Quality of Service IP-based

services Managed end-to-end performance needed for new

applicationsrequiring real-time traffic (e.g., video, voice) New network management, QoS, traffic engineering,

pricing &accounting models


9/29

Transition to NGN: Third wave

Evolution of current PSTN, mobile, wireless and

IP-based networks to unified Next GenerationNetworks

providing both Internet and carrier-gradetelecommunications

networks and services offerings with QoS Transition to Third wave:Ubiquitous & Pervasive Networks anybody, anytime, anywhere

Global Information Infrastructure (GII) ITU, 1995 EII ETSI Project (1995)

ITU NGN 2004 Project

Y.1xx ITU-T SG 13 NGN Architecture, Evolution and

Convergence


10/29

Today Tomorrow

Telephonenetwork

Mobile radionetwork

-IP Network

- :Multimedia Access Advantages easy to handlereliablemobile

Internet

Transition toNGN


11/29

ITU-T definition of NGN (Feb 2004)

A Next Generation Network (NGN) is a packet-based

networkable to provide services including Telecommunications

Servicesand able to make use ofmultiple broadband, QoS-

enabledtransport technologies and in which service-related

functionsare independent from underlying transport-related

technologies.It offers unrestricted access by users to different serviceproviders. It supports generalized mobility which will

allow

consistent and ubiquitous provision of services to users.


12/29

What is NGN?(From Laymans point of view)

Next Generation Services Converged(quad-play, voice, data, video, mobile) Next Generation Access High speed

(Broadband) IP based connectivity(ADSL, VDSL ,WI-Max, Cable TV, FTTH, )

Next Generation Transport Ethernet, IP-MPLS Next Generation Architecture Service

oriented, layered (transport, control,application)

Next Generation Mobile 3G+ Next Generation Internet IPv6 Next Generation Interconnect Capacity

and Quality based

Next Generation Licensing Unified Next Generation Re ulation Conver ed


13/29

Fundamental characteristics of NGN

* Packet-based transfer

Separation of control functions among bearercapabilities, call/session, and application/ service

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

Support for a wide range of services, applications andmechanisms based on service building blocks(including real time/ streaming/ non-real timeservices and multi-media, Triple- play)

Broadband capabilities with end-to-end QoS andtransparency

Inter working with legacy networks via open interfaces Generalized mobility support

Unrestricted access by users to different serviceproviders


14/29

14

Next Generation Network Plane andFunctions

Monolithic networks evolve towards a layered NGN architecture withopen interfaces.

Application Plane enables theprovisioning of services and

provides the control and logicfor the execution of services

Control Plane controls the

,elements of the networkestablishes and tears down mediaconnections

Transport Plane is responsiblefor the transport of media and

signaling messagesManagement Plane covers network

management ensuring service,fulfillment service assuranceand billing

Access Networks connect customernetworks or terminals with thecomponents of the NGN network andaggregate the dedicated traffic

type

Planes and functionsNGN Planes

Access Networks

TransportPlane

ApplicationPlane

Control Plane

M a

n a

g e

m e

n t

P l

a n

e

Value AddedService

Creation

Packet BasedTransport

Basic controlservice

K d i f NGN


15/29

Key drivers of NGNdevelopment

Short Term objective:Create new revenue possibilities

Removal of boundaries between voice anddata opens the way to new kind ofservices

Can be realized relatively quickly with

limited investments

Long Term objective:Realize cost savings

Simpler network More efficient network

Cheaper network components

Full benefit only realized when all separatenetworks have fully migrated towards tothe target solution


16/29

Example NGN ServiceDrivers


17/29

Transport mechanisms of theunified network

The unified network will use packet-basedtechnology as the common transportmechanism

Data is the fastest growing segment due to

Success of Internet Growing use of E-mail

Growing data traffic between businessusers

Data should be handled in the most efficientway

Packet technology is the best way totransport data

Packet technology is only technology that

allows simultaneous delivery of differentinformation streams towards one and the


18/29

NGN architecture

Evolution of network architecture Traditional telephony - Circuit switch based

PSTN


19/29

Evolution of network architecture(Cont.)

Circuit Switched PSTN + Packet Switched IP

network (VoIP Gateway) SG Signaling gateway

MGC Media gateway controller

MG Media gateway

vo u on o ne wor arc ec ure


20/29

vo u on o ne wor arc ec ure(Cont.)

Completely IP-oriented network

T i l NGN hi


21/29

Typical NGN architecture


22/29

NGN Architecture

NGN Concept A unified packet transport layer for all types

of services A session based control architecture

For user to user voice , video and dataservices over the packet infrastructure

A common Service delivery platform Expectations from NGN

Generate new revenue streams byhaving fast roll out of new multimedia

services Secure voice revenue stream by

integrating PSTN infrastructure withNGN

Provide solution to cater to PSTN

obsolescence wherever applicable


23/29

Requirements for NGNImplementation

Equipment and Network Interoperability betweenvarious Operators

A standards based functional architecture Standard interfaces and protocols

Ability to serve Fixed (Copper and fibre), Wireless andMobile Networks

Open Services Architecture Standard interfaces open to third party

application service providers

Q o S Control Mechanism Important for voice and video services Requires bandwidth allocation mechanism at

access level as it is shared between variousservices


24/29

Cont

Need to share management functions likeprovisioning, metering, billing, QoS monitoring

Provide Generalized Mobility features Mobility features at the fixed access,

nomadism Provide service continuity between fixed

and mobile access leading to convergence

Common technology for transport layer

IP/MPLS has emerged as the most suitabletechnology for this layer


25/29

25

Next Generation Network benefitsNGN has the potential to become the communication

network of the future.

d ev ice in d ep en d en ce

access ind ep en de nce

se rv ice va rie ty

e n h a n ce d u sa b ility

n ew re ve n u e p oten tial

- -im p ro v e s tim e to m a rke t e a sy in te g ra tio n o f 3 rd p a rty

se rv ice s

,o n e p la tfo rm fo r v o ice d a taa n d m u ltim e d ia

Customer benefitsNext Generation Network

/Operator provider benefitsIP

Access Network

SDP

SDP

SDP

SDP

IMS

TransportPlane

ApplicationPlane

Control Plane

M a

n a

g e

m e

n t

P l

a n

e

DSLAM Radio


26/29

Ad


27/29

Advantages.


28/29


29/29

Thank you

Documents

NGN û Next Generation Network_Shivpreet, Abhijeev