Download - NGN – Next Generation Networks.ppt 0 NGN – Next Generation Network Bayram Akbari

NGN – Next Generation Networks.ppt

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NGN – Next Generation Network

Bayram Akbari


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Agenda.Principles of telecommunication networks

Existing networks

Drivers and motivation for Next Generation Network

Basic concept of Next Generation Network

-requirements-functions and structures

Next Generation Network benefits

Transition to Next Generation Network

Bayram Akbari


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Principles of telecommunication networks.Using the same access line, circuit and packet networks utilize

different mechanism to provide services and to share resources.

Circuit switched network (schematic)

Packet switched network (schematic)

access line

access line

Bayram Akbari


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Existing networks.Today operators run different networks which are

interconnected.

e.g. GSM e.g. PSTN e.g. Internet

Centr

al Fu

nct

ions

Transport

Control

Services

Transport

Control

Services

Transport

Control

Services

Access

Centr

al Fu

nct

ions

Transport

Control

Services

Transport

Control

Services

Transport

Control

Services

Access

fixed voice circuit switched monolithic

structure

mobile voice circuit switched monolithic

structure

different services packet switched modular structure

Variety of networks

Bayram Akbari


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

on operators’ NGN deployments.

develop new services easier and faster

enhance flexibility

reduce operational expenditures

replace of old platforms at their end of lifecycle

massive growth of data traffic

flat growth of voice market

massive access competition

maturity of IP technology

open standards and architectures

Deployment of Next Generation Network

Operators’ MotivationDrivers

Bayram Akbari


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Basic concept of Next Generation Network.A Next Generation Network can be defined by six key

criteria.

NGNconcept

integration of existing infrastructu

re

packet-oriented network

support broad

variety of services

openness and

flexibility regarding

new services

separation into

different layers

using open interfaces

application focused - access

independent

Bayram Akbari


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Basic concept of Next Generation Network.An IP-based NGN is able to support a broad variety of

services.

Variety of services

Voice over IP

Data

Multimedia

Bayram Akbari

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Basic concept of Next Generation Network.Next Generation Network has to fulfill the specific

characteristics of telecommunication services.

provide a directory

ensure privacy/securit

y

manage the transfer /

delivery of the content

collect usage data to ensure

service fulfillment and

to allow for billing

establish communicatio

n to the desired partner

characteristics of

telecommunication services

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• NGN architecture generalized in four layers

Network services

Network control and management

Core network

Access network

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Interfaces

Switching

Call Control

Application & Service

Control Server

IP Routing

Gateways

PSTN Switch NGN Components

NGN v/s PSTN- 90 degree shift

SDH Transport

with Overlay packets for

data

Common IP MPLS/Ethernet Transport

NGN – Next Generation

Networks.ppt9Bayram Akbari

Gateways

Internet

Wireless POTS

Workstation

IntegratedServices Over IP

Workstation

Evolving towards Flat All IP Communications

Next Generation Networks (NGN)Present Day Networks

Next Generation Networks – Technological Evolution

Bayram Akbari

NGN – Next Generation Networks.ppt 12

IAD AMG

BroadBandAccess

UMG

PLMN/3G

SG TMG

PSTN

UMG

Service Management

Packet Core Network

Network Control

Core Switching

Edge Access

SoftSwitch SoftSwitch

iOSSPolicyServer

ApplicationServer

SCPLocationServer

RADIUSServer

MRS

NGN Network Architecture

Bayram Akbari

تلفن خط باند پهنای

قابلیت • تلفن خط یکفرکانس دهی عبور

فرکانس و صوترا پرسرعت اینترنت

دارد همزمان بطورتنها • فکس و صوت

4KHz را اولیه طیفمیکنند اشغال

باالتر • های فرکانسدیتا انتقال به میتواند

یابد 11اختصاص00

k

Hz

AD

SL

0 k

Hz

3.4

k

Hz

Voi

ce/F

ax25

kH

z

A typical ADSL equipment configuration.

DSLخطوط

گیری بکار از ساده معماری یکDSL

Overview of DSL Architecture

T o p o l o g y F i l e E d i t L o c a t e V i e w H e l p

M o u n t 4 3 1 7 4 3 7 1 9 5 0 7 9 % / N e t w o r k

T r a f f i c H e l p

Splitter

DSL modem

DSLAM

Broadband Network

Telephone switch

(PSTN)

Customer PremisesCentral Office (CO)

Combined Signal0 to 1 MHz

Voice Band0 to 4 kHz

ADSL Band40 kHz – 1 MHz

Splitter

PSTN

T o p o l o g y F i l e E d i t L o c a t e V i e w H e l p

M o u n t 4 3 1 7 4 3 7 1 9 5 0 7 9 % / N e t w o r k

T r a f f i c H e l p

DSLAM

Broadband Network

Telephone switch

Customer PremisesCentral Office (CO)

IAD

GW

Data Traffic

Voice Traffic (Packetized)

Both voice and data use the high

frequency band(40 kHz-1MHz)

Overview of DSL Architecture


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NGN PROTOCOLS

Bayram Akbari

Confidential Information of Huawei. No Spreading without Permission.

Security Level: Internal 19

NGN using standard protocol

ISUP

IN OSSPARLAY/SIP

SNMP/MMLAppServer

SG

PSTN

switchSTP

Packet Core Network

TMG

PLMN

MGW

Soft-phone

SIP/H.323

SIP-T/BICC/H.323Softswitch

IADAMG

H.248/MGCP

TRIP

Location Server

H.248M2UA/SCTP

H.248

Softswitch

MRS

MGCP/H248/SIPINAP

M3UA/SCTP

Core IP/MPLS Networks

User

Schematic view of NGN

DSL

ASPNetwo

rk

WEB

ASPNetwor

k

VoD

DOCSIS

IMS

MMS

GSMWi-Fi

Access

Transport

ServicesSIP

PSTN

PSAPNetwor

k

E911


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NGN ARCHITECTURE

Bayram Akbari


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PLMN

H.248A/MEGACO Overview

• MEdia GAteway Control Protocol [RFC3015]

• H.248 is ITU-T reference for the same protocol

• Protocol for controlling telephony gateway and terminals (IP Phones)

• Basis for Vendor Independent Network deployment


Networks.ppt

Signaling Standards

• Media Gateway Control Signalling– H.248/Megaco

• Call Signalling– SIP and SIP-T– H.323


Networks.ppt

What is H.323?

• H.323* is a multimedia conferencing protocol, which includes voice, video, and data conferencing, for use over packet-switched networks

* H.323 is “ITU-T Recommendation H.323: Packet-based multimedia communications systems”


Networks.ppt


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NETWORK VIEW


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SIP• SIP is the core protocol for initiating,

managing and terminating sessions in the Internet

• These sessions may be text, voice, video or a combination of these

• SIP sessions involve one or more participants and can use unicast or multicast communication.


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SIP


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First NGN Network in KISH

¨ The first NGN network in Iran;¨ 100 ％ inheriting all PSTN/ISDN services such as basic and

supplementary Voice, modem, fax services etc; ¨ Providing value-added services such as Video Communication, IPTV,

BroadBand, Data, IP Centrex etc;¨ Unified Network Management System and billing;

SoftX3000NMS

PSTN E1

SS7 UMG

IAD

ONUONU

NE40

L3526

L3526

TDM/E1

IP/FE

DSLAM DSLAM

xDSL

DSLAM

IP TV

ONU DSLAMONU

Hormoz Market

Sadaf TowerIT Center

Financial Center

Pardis II

Center Office of TCKISH

Bayram Akbari

Inte

rnet

Cab

le/B

road

castin

g

Mob

ile

PS

TN

Concept of Next Generation Networks

TodayMultiple Single-

service NetworksServices

Access Transport & Switching Networks

Servers

Clients

Backbone Network

Wired Access

WirelessAccess

TomorrowSingle Multi-service

Network

Communication Control

Content Content

Expensive Efficient


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ACHIEVABLE NETWORK RATIONALISATION IN TCI


NGN － Core Switching LayerNGN － Core Switching Layer

Core SwitchingIP Core Network

SS RR

LANSWITCH

BEIJING

SHENZHEN

New York

Paris

bigsmall


SoftSwitchSoftSwitch SoftSwitchSoftSwitch

NGN － Control LayerNGN － Control Layer

3G AccessAMGIADBroadband Access

PSTNPSTNTMG

SG

PLMNPLMN

IP Core Network

UMG

UMG

Call control path

Talking Path


Core Switching Layer

Edge Access

3G AccessAMGIADBroadband Access

PSTNPSTNTMG

SG

PLMNPLMN

IP Core Network

UMG

UMG

NGN － Edge Access LayerNGN － Edge Access Layer

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Changing Telecoms Trends• Fixed line usage is reducing dramatically for “classical”

services• Mobile use is increasing steadily even though

penetration is already high.• Broadband Internet deployment shows a rapid growth

trend.

Broadband

MobileFixed


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DATAPLMN

PSTN

شبكه زيرساخت

MGMG

ROUTER

CORE ROUTER

EDGE ROUTER

ساخت زير شبكه با خصوصي ديتاي هاي شبكه پاکتی ارتباط

DATA

ROUTER

Servive /ApplicationLayer

SiGTRAN

H.248

SG

IN NMS

AppServer Route/Policy Service

Soft Switch Soft Switch

PSTN

Packet core networ

PLMN

ISUP

INAPSNMPQ3

PARLAYSIP

LDAPTRIP

SIP-T/BICC/H.323

H.248

T MG

TMG

H.323 phone

SIP

SIP/H.323

H.248/MGCP

H.248/MGCP

H.323

SIP phoneH.323

IADAMG

Control Layer

TransportLayer

AccessLayer

شبكه NGNمدل


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These Trends are pushing for…

• Fixed – Mobile Convergence (FMC)– the integration of mobile and fixed technologies to enable

the seamless distribution of services over fixed and mobile broadband networks

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Converged User Experience

Today Tomorrow

BILLS

ANY SERVICE –

ANYWHERE

FREEDOM TO CHOOSE

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IMS

FIXED MOBILE

Ho

me

Core

Access

Co

nn

ecti

vity

Use

rHSS

Services Location/Security

WCDMAGERANWiMAX WLANxDSL

Converged Network Overview


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Different levels of NGN architecture

Bayram Akbari

& Services


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Integration of Voice and Data - IP based Voice Service equitable with Fixed Voice quality assured

Integration of Fixed and Mobile - Seamless services between Fixed and Mobile using integrated TE

Convergence of Telecom and Broadcasting - Personalized very high quality Bi-directional Multi-media services by FTTH and 4G

Integration of Voice and Data - IP based Voice Service equitable with Fixed Voice quality assured

Integration of Fixed and Mobile - Seamless services between Fixed and Mobile using integrated TE

Convergence of Telecom and Broadcasting - Personalized very high quality Bi-directional Multi-media services by FTTH and 4G

CGNCGN NGcNNGcNServiceService

Broad

c.

Broad

c.

xDSL

OpticsCoax.

CMTSSat. B.S.

Land B.S.

Mobile Net.

CATV &Internet

Broadcast.

CM

STB

DSLAMInternet &

Other serv.

Voice &

Mobile Data

C.O

Fix. voice &

Sup. ServicePSTN

IP basedBroadband Net.

Optics

Broadcas. Net

Voice Net.

C.O MediaGateway

Internet

Integrated Services Network of NGcN

1. NGN Concept and Architectural Requirements

Bayram Akbari


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First NGN Network in KISH

¨ The first NGN network in Iran;¨ 100 ％ inheriting all PSTN/ISDN services such as basic and

supplementary Voice, modem, fax services etc; ¨ Providing value-added services such as Video Communication, IPTV,

BroadBand, Data, IP Centrex etc;¨ Unified Network Management System and billing;

SoftX3000NMS

PSTN E1

SS7 UMG

IAD

ONUONU

NE40

L3526

L3526

TDM/E1

IP/FE

DSLAM DSLAM

xDSL

DSLAM

IP TV

ONU DSLAMONU

Hormoz Market

Sadaf TowerIT Center

Financial Center

Pardis II

Center Office of TCKISH

Bayram Akbari


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NGN WORLDWIDE ARCHITECTURE


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Basic concept of Next Generation Network.Monolithic networks evolve towards a layered NGN

architecture with open interfaces.

Application Plane enables the provisioning of services and provides the control and logic for the execution of services

Control Plane controls the elements of the network, establishes and tears down media connections

Transport Plane is responsible for the transport of media and signaling messages

Management Plane covers network management ensuring service fulfillment, service assurance and billing

Access Networks connect customer networks or terminals with the components of the NGN network and aggregate the dedicated traffic type

Planes and functionsNGN Planes

Access Networks

Transport Plane

Application Plane

Control Plane

Managem

ent

Pla

ne

Value Added Service Creation

Packet Based Transport

Basic control service

Bayram Akbari


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Next Generation Network benefits.NGN has the potential to become the communication

network of the future.

device independence access independence service variety enhanced usability …

new revenue potential improves time-to-market easy integration of 3rd

party services one platform for voice,

data and multimedia …

Customer benefitsNext Generation Network

Operator / provider benefitsIP

Access Network

…SDP …SDP …SDP …SDP

IMS

Transport Plane

Application Plane

Control Plane

Managem

ent

Pla

ne

DSLAM Radio

Bayram Akbari


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Transition to Next Generation Network.Overlay approach is an option that allows for a smooth

and flexible transition to NGN .

PSTN and PLMN remain the key production platforms for pure voice services

NGN overlay platform is used to serve business and consumer customers with integrated services

NGN overlay will be further developed in line with market requirements

Substitution will not be started as long as financial assessment is yielding no incentive or technical reasons (e.g. failure rate of components or lack of system support) makes it necessary

DescriptionNGN overlay

SDP

IP

CS - Domain

IMS

Other PSTN / PLMN

IP-Phone

ILLUSTRATIVE

PS - Domain

SDH

Other NGN

WWW

Bayram Akbari

64k 384k

1.5M

8M 20M 40M 100M

From Telephony to IBMW

Telephony 　　　　　　　　　　　 Broadband 　　　

Optical Fiber

Optical Fiber

ADSLADSL

UWBUWB3G Mobile3G Mobile Wireless

LANWireless

LAN

Fixed Telephone

Fixed Telephone

ISDNISDN

Mobile Phone

Mobile Phone

Analog 　　　 Digital 　　　　 Packet 　　　　　 IPAnalog 　　　 Digital 　　　　 Packet 　　　　　 IP

From PSTN to IP Network

I : InternetＢ : BroadbandＭ : MobileＷ : Wireless

I : InternetＢ : BroadbandＭ : MobileＷ : Wireless


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Bayram Akbari

Download - NGN – Next Generation Networks.ppt 0 NGN – Next Generation Network Bayram Akbari

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