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

1. NGN – Next Generation Networks.ppt
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
NGN – Next Generation Networks.ppt
Bayram Akbari

2. 19%
Principles of telecommunication networks. Using the same access line, circuit and packet networks utilize different mechanism to provide services and to share resources.
Packet switched network (schematic)
access line
Circuit switched network (schematic)
access line
NGN – Next Generation Networks.ppt
Bayram Akbari

3. NGN – Next Generation Networks.ppt
Existing networks. Today operators run different networks which are interconnected.
Variety of networks
e.g. GSM
e.g. Internet
e.g. PSTN
Central Functions
Transport
Control
Services
Access
Central Functions
Transport
Control
Services
Access
fixed voice
circuit switched
monolithic structure
mobile voice
circuit switched
monolithic structure
different services
packet switched
modular structure
NGN – Next Generation Networks.ppt
Bayram Akbari

4. Operators’ Motivation Deployment of Next Generation Network
19%
Drivers and motivation for NGN deployment. External drivers and internal motivation put pressure on operators’ NGN deployments.
Drivers
Operators’ Motivation
massive growth of data traffic
flat growth of voice market
massive access competition
maturity of IP technology
open standards and architectures
develop new services easier and faster
enhance flexibility
reduce operational expenditures
replace of old platforms at their end of lifecycle
Deployment of Next Generation Network
NGN – Next Generation Networks.ppt
Bayram Akbari

5. Basic concept of Next Generation Network
Basic concept of Next Generation Network. A Next Generation Network can be defined by six key criteria.
packet-oriented network
integration of existing infrastructure
support broad variety of services
NGN concept
application focused - access independent
openness and flexibility regarding new services
separation into different layers using open interfaces
NGN – Next Generation Networks.ppt
Bayram Akbari

6. NGN – Next Generation Networks.ppt
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
NGN – Next Generation Networks.ppt
Bayram Akbari

7. characteristics of telecommunication services
Basic concept of Next Generation Network. Next Generation Network has to fulfill the specific characteristics of telecommunication services.
establish communication to the desired partner
provide a directory
manage the transfer / delivery of the content
characteristics of telecommunication services
ensure privacy/security
collect usage data to ensure service fulfillment and to allow for billing
NGN – Next Generation Networks.ppt
Bayram Akbari

8. Network control and management
NGN architecture generalized in four layers
Network services
Network control and management
Core network
Access network
NGN – Next Generation Networks.ppt
Bayram Akbari

9. NGN v/s PSTN- 90 degree shift
PSTN Switch
NGN Components
Call Control
Application
& Service
Control Server
Switching
IP Routing
Interfaces
Gateways
SDH Transport with Overlay packets for data
Common IP MPLS/Ethernet
Transport
NGN – Next Generation Networks.ppt 9
Bayram Akbari

10. Next Generation Networks – Technological Evolution
Present Day Networks
Next Generation Networks (NGN)
Internet
Integrated
Services
Over IP
Gateways
Wireless
POTS
Evolving towards Flat All IP Communications
Bayram Akbari

11. NGN – Next Generation Networks.ppt
NGN Network Architecture
Policy
Application
Location
RADIUS
iOSS
MRS
SCP
Server
Server
Server
Server
Service Management
Network Control
SoftSwitch
SoftSwitch
Packet Core Network
Core Switching
Edge Access
IAD
AMG SG
TMG
UMG
UMG
BroadBand
PSTN
PLMN/3G
Access
NGN – Next Generation Networks.ppt
Bayram Akbari

12. پهنای باند خط تلفن
یک خط تلفن قابلیت عبور دهی فرکانس صوت و فرکانس اینترنت پرسرعت را بطور همزمان دارد
صوت و فکس تنها 4KHz طیف اولیه را اشغال میکنند
فرکانس های بالاتر میتواند به انتقال دیتا اختصاص یابد
Voice/Fax
ADSL
3.4 kHz
0 kHz
25 kHz
1100 kHz

13. A typical ADSL equipment configuration.

14. یک معماری ساده از بکار گیری DSL

15. Overview of DSL Architecture
Splitter
DSL modem
DSLAM
Broadband Network
Telephone switch
(PSTN)
Customer Premises
Central Office (CO)
Combined Signal
0 to 1 MHz
Voice Band
0 to 4 kHz
ADSL Band
40 kHz – 1 MHz

16. Overview of DSL Architecture
Central Office (CO)
Customer Premises
Broadband Network
Both voice and data use the high frequency band
(40 kHz-1MHz)
DSLAM
IAD GW
PSTN
Telephone switch
Data Traffic
Voice Traffic (Packetized)

17. NGN – Next Generation Networks.ppt
NGN PROTOCOLS
NGN – Next Generation Networks.ppt
Bayram Akbari

18. NGN using standard protocol
PARLAY/
SIP
TRIP
INAP
MRS
OSS
SNMP/MML
AppServer
Location Server
MGCP/H248/SIP
H.248/MGCP
SIP/
H.323
SIP-T/BICC/H.323
M3UA/SCTP
Softswitch
Softswitch
H.248 SG
H.248
M2UA/SCTP
Packet Core Network
ISUP
TMG
PSTN
switch
STP
MGW
国际标准组织：
ITU-T：H.248、H.323、BICC….
IETF：SIP、MGCP、Megaco 、SIGTRAN
MGCP/Megaco/H.248：基于网关分离结构的媒体网关控制协议，主从方式
SIP：Session initial protocol，多媒体通信系统框架协议之一，用于建立、改变或者结束多媒体会话的应用层协议
H.323：一种基于分组交换网络，为终端或其它实体提供多媒体信息传送的协议
BICC：Bearer Independent Call Control Protocol，继承了ISUP的控制方式，实现了呼叫控制与承载控制的分离，可以在分组网络上实现PSTD/ISDN的全部业务
信令传送协议SIGTRAN：目的是在分组网络上传送PSTN信令协议，主要协议包括：SCTP、M3UA、M2PA、M2UA、IUA等
AMG
PLMN
IAD
Soft-phone
Confidential Information of Huawei.
No Spreading without Permission.
Security Level: Internal

19. Schematic view of NGN User Services WEB VoD MMS SIP E911 Transport
ASP
Network
ASP
Network
IMS
PSAP
Network
Transport
Core IP/MPLS Networks
Wi-Fi
DSL
GSM
PSTN
DOCSIS
Access
User

20. NGN – Next Generation Networks.ppt
NGN ARCHITECTURE
NGN – Next Generation Networks.ppt
Bayram Akbari

21. NGN – Next Generation Networks.ppt
PLMN
NGN – Next Generation Networks.ppt

22. NGN – Next Generation Networks.ppt
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
H.248/MEGACO (MEdia GAteway Control Protocol) Overview
H.248 designation is ITU-T reference
IETF Megaco Protocol spec and ITU H.248 spec are synonymous,
IETF RFC number is RFC2885
word-for-word identical in technical content. 
can be used as a single international specification supported by both key standards bodies on data (IETF) and telecom (ITU) side of the fence, very broadly accepted across the industry. 
Stimulus protocol for controlling simplified access/telephony gateway and terminals (IP Phones)
Basis for Vendor Independent Network deployment
Unifying protocol for Succession Solutions Gateways
NGN – Next Generation Networks.ppt

23. 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

24. 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

25. NGN – Next Generation Networks.ppt
NETWORK VIEW
NGN – Next Generation Networks.ppt

26. NGN – Next Generation Networks.ppt
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.
NGN – Next Generation Networks.ppt

27. NGN – Next Generation Networks.ppt
SIP
NGN – Next Generation Networks.ppt

28. First NGN Network in KISH
Center Office of TCKISH
IP TV
SoftX3000
Internet
NMS E1
PSTN
DSLAM
SS7
UMG
ONU
NE40
ONU
L3526
Pardis II
DSLAM
DSLAM
Hormoz Market
ONU
DSLAM
L3526
ONU
xDSL
IAD
TDM/E1
IT Center
Sadaf Tower
IP/FE
Financial Center
中心局＋接入局。
接入局可以和中心局合一。在郊区，用户局可拉远。
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;
NGN – Next Generation Networks.ppt
Bayram Akbari
Konzernentwicklung

29. Concept of Next Generation Networks
Today
Multiple Single-service Networks
Tomorrow
Single Multi-service Network
Expensive
Efficient
Services
Servers
Content
Content
PSTN
Mobile
Internet
Cable/Broadcasting
Communication Control
Media Conversion
Media Conversion
Backbone Network
Wireless
Access
Wired
Access
Now let’s move on to the first part of my talk, which is about NGN overview.
First, I want to start by giving you some background information of NGN. NGN stands for Next Generation Networks.
Anyway, Today, We have many telecommunication Networks, such as telephone network, mobile network, Internet, Cable television,
Leased line network.
To provide each network services, we have to deploy and operate separate networks. For example, to provide mobile services, we have to deploy Public Land Mobile Network.
But in the future the networks will be converged by layers, such as service layer, application and contents, control layer, such as softswitch, SIP servers, transport network, IP-based backbone network, and the last access layer, such as wireless and narrowband/broadband access network.
Clients
Access Transport & Switching Networks

30. NGN – Next Generation Networks.ppt

31. ACHIEVABLE NETWORK RATIONALISATION IN TCI
NGN – Next Generation Networks.ppt

32. NGN－Core Switching Layer
LANSWITCH
small
big
Core Switching
IP Core Network
BEIJING
Internet
SHENZHEN
New York
Paris
Security Level: Internal

33. Security Level: Internal
NGN－Control Layer
SoftSwitch
SoftSwitch
Call control path
IP Core Network
Talking Path
3G Access
IAD
AMG
UMG
Broadband Access SG
TMG
PSTN
UMG
PLMN
Security Level: Internal

34. Security Level: Internal
NGN－Edge Access Layer
Core Switching Layer
IP Core Network
3G Access
IAD
AMG
UMG
Broadband Access SG
TMG
UMG
PSTN
PLMN
Edge Access
Security Level: Internal

35. 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
Mobile
Fixed
FIXED: operators face NEW challenges from low-cost operators, mobile operators and VoIP. Although profits on fixed voice and data are presently high, the trend is for steeply decreasing volume due to new competitive technologies as well as pressure on prices and margins.
Fixed has the advantage of quality and reliability and will look to reducing network costs and increasing revenue through new services. MOBILE: End of 2005, there will be almost two billion mobile subscriptions worldwide. Strong growth in developing countries (including Asia and Latin America)
Voice is still the main source of revenues and profits (80%)
New profit opportunities from enhanced content such as ring tones, wallpapers and games, and new services (Conferencing, Streaming, Chat).
Mobile operators are opening new (world) markets, eating the fixed operator minutes, as well as developing new services.
BROADBAND: continues to proliferate - technology delivering ever increasing bandwidth to a demanding customer base. However profits tend to decline due to competitively between providers. Churn is high and overall profit is low
VoIP: call volume and the user base is rapidly increasing, rapid take up in businesses for corporate communications. However growth is limited by shortfalls in VoIP's quality and reliability.

36. NGN – Next Generation Networks.ppt

37. NGN – Next Generation Networks.ppt

38. NGN – Next Generation Networks.ppt

39. NGN – Next Generation Networks.ppt

40. NGN – Next Generation Networks.ppt

41. ارتباط شبكه هاي ديتاي خصوصي با شبكه زير ساخت پاکتی
شبكه زيرساخت
CORE ROUTER
EDGE ROUTER MG
ROUTER
PSTN
ROUTER MG
DATA
PLMN
DATA

42. مدل شبكه NGN Packet core networ Soft Switch SiGTRAN SG IN NMS PSTN
AppServer
Route/Policy Service
Soft Switch
PSTN
Packet core networ
PLMN
ISUP
INAP
SNMP Q3
PARLAY
SIP
LDAP
TRIP
SIP-T/BICC/H.323
T MG
TMG
H.323 phone
SIP/
H.323
H.248/
MGCP
SIP phone
IAD
AMG
Control
Layer
Transport
Access
Servive /
Application
Layer

43. NGN – Next Generation Networks.ppt

44. 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

45. Converged User Experience
Today
Tomorrow
BILLS
ANY SERVICE – ANYWHERE
FREEDOM TO CHOOSE

46. Converged Network Overview
Services
Location/Security
Home
IMS
HSS
Core
FIXED
MOBILE
Connectivity
Access
xDSL
WiMAX
WLAN
GERAN
WCDMA
User

47. NGN – Next Generation Networks.ppt

48. NGN – Next Generation Networks.ppt

49. NGN – Next Generation Networks.ppt

50. Different levels of NGN architecture
& Services
NGN – Next Generation Networks.ppt
Bayram Akbari

51. 1. NGN Concept and Architectural Requirements
Integrated Services Network of NGcN
 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
Service
CGN
NGcN
Fix. voice &
Sup. Service
PSTN
Voice Net.
C.O
Voice &
Mobile Data
IP based Broadband Net.
Mobile Net.
C.O
Media
Gateway
xDSL
Internet &
Other serv.
DSLAM
Internet
Optics
CATV &
Internet CM
Coax.
Optics
CMTS
Broadc.
STB
Sat. B.S.
Broadcas. Net
Broadcast.
Land B.S.
NGN – Next Generation Networks.ppt
Bayram Akbari
Konzernentwicklung

52. First NGN Network in KISH
Center Office of TCKISH
IP TV
SoftX3000
Internet
NMS E1
PSTN
DSLAM
SS7
UMG
ONU
NE40
ONU
L3526
Pardis II
DSLAM
DSLAM
Hormoz Market
ONU
DSLAM
L3526
ONU
xDSL
IAD
TDM/E1
IT Center
Sadaf Tower
IP/FE
Financial Center
中心局＋接入局。
接入局可以和中心局合一。在郊区，用户局可拉远。
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;
NGN – Next Generation Networks.ppt
Bayram Akbari
Konzernentwicklung

53. NGN WORLDWIDE ARCHITECTURE
NGN – Next Generation Networks.ppt

54. Basic concept of Next Generation Network
Basic concept of Next Generation Network. Monolithic networks evolve towards a layered NGN architecture with open interfaces.
NGN Planes
Planes and functions
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
Application Plane
Value Added Service Creation
Control Plane
Basic control service
Transport Plane
Management Plane
Packet Based Transport
Access Networks
NGN – Next Generation Networks.ppt
Bayram Akbari

55. Next Generation Network Operator / provider benefits
Next Generation Network benefits. NGN has the potential to become the communication network of the future.
Next Generation Network
Customer benefits
Application Plane
device independence
access independence
service variety
enhanced usability … …
SDP …
SDP …
SDP …
SDP
Control Plane
IMS
Management Plane
Transport Plane
Operator / provider benefits IP
new revenue potential
improves time-to-market
easy integration of 3rd party services
one platform for voice, data and multimedia …
Access Network
Radio
DSLAM
NGN – Next Generation Networks.ppt
Bayram Akbari

56. NGN – Next Generation Networks.ppt
Transition to Next Generation Network. Overlay approach is an option that allows for a smooth and flexible transition to NGN .
NGN overlay
Description
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
ILLUSTRATIVE
CS - Domain
Other PSTN / PLMN
SDH
PS - Domain
Other NGN
SDP
IMS IP
WWW
IP- Phone
NGN – Next Generation Networks.ppt
Bayram Akbari

57. Analog Digital Packet IP
From Telephony to IBMW
Telephony 　　　　　　
　　　　 　 Broadband　
Fixed Telephone
ISDN
ADSL
Optical Fiber
Wireless LAN
UWB
Mobile Phone
3G Mobile
64k
384k
1.5M 8M
20M
40M
100M
I : Internet
Ｂ : Broadband
Ｍ : Mobile
Ｗ : Wireless
It was once the case that Japan's telecommunications infrastructure centered on voice telephony in Public Switched Telephone Network. It could be said that the twentieth century was the era of telephony, but now the twenty-first century ICT situation marks it as the era that transcends telephony.
From analog to digital, from fixed to mobile, from narrow band to broadband, from PSTN to IP, -- integrating these trends, I think, we can symbolize the present situation as "IBMW," or Internet, broadband, mobile and wireless.
Analog　 　　Digital　 　　　Packet　　　　　IP
From PSTN to IP Network

58. NGN – Next Generation Networks.ppt
Thank you !
NGN – Next Generation Networks.ppt
Bayram Akbari