Post on 14-Dec-2015
NGN – Next Generation Networks.ppt
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NGN – Next Generation Network
Bayram Akbari
NGN – Next Generation Networks.ppt
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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
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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
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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
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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
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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
Bayram Akbari
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
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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
NGN – Next Generation
Networks.ppt
Signaling Standards
• Media Gateway Control Signalling– H.248/Megaco
• Call Signalling– SIP and SIP-T– H.323
NGN – Next Generation
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”
NGN – Next Generation
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
Security Level: Internal 33
NGN - Core Switching LayerNGN - Core Switching Layer
Core SwitchingIP Core Network
SS RR
LANSWITCH
BEIJING
SHENZHEN
New York
Paris
bigsmall
Security Level: Internal 34
SoftSwitchSoftSwitch SoftSwitchSoftSwitch
NGN - Control LayerNGN - Control Layer
3G AccessAMGIADBroadband Access
PSTNPSTNTMG
SG
PLMNPLMN
IP Core Network
UMG
UMG
Call control path
Talking Path
Security Level: Internal 35
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
47
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
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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
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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