NGN Case Studies

1
NGN Case Studies
WORKSHOP ON NEXT GENERATION NETWORKS AND
APPLICATIONS (Athens, Greece, 8 May 2009)

• Chaesub Lee
• Chairman of ITU-T SG13

2
Contents

1. Migration towards NGN
2. NGN Case Study
3. Field Trial of NGUN
4. Conclusion

3
Drivers of Network Migration General Motivation
1. Migration towards NGN

• New services and revenue increase with
  multimedia services
• Compensate voice revenue reduction and increase
  BB related business
• Providing Service innovation (e.g. VPN)
• Decreased time to market
• Cost reductions by sharing network
  infrastructure and systems
• Savings are a function of network scenario,
  equipment modernization status and customers
  grow speed
• Evolving legacy networks to NGN Reduced OPEX and
  streamline operations
• Simplification of OM
• Integrated operation platforms, maintenance and
  training
• Centralized Management and Control

4
Drivers of Network Migration Operators view
1. Migration towards NGN

• Business continuity required to maintain ongoing
  dominant services and customers that require
  carrier-grade service
• Flexibility to incorporate existing new services
  and react quickly to the ones that appear on real
  time (main advantage of IP mode)
• Profitability to allow feasible return on
  investments and in the best practices market
  values
• Survivability to allow service assurance in
  case of failures and external unexpected events
• Quality of Service to guarantee the Service Level
  Agreements for different traffic mixes,
  conditions and overload.
• Interoperability across networks to allow to
  carry end to end services for flows in different
  network domains

5
1. Migration towards NGN
Architecture Existing Networks

• Hierarchical topology with 4 to 5 layers,
  connectivity to the upper next layer and within
  each layer as a function of economical
  optimization
• Number of nodes as a function of O/D traffic and
  nodes capacity
• Service handling for media, signaling and control
  at all exchange nodes
• Carrier grade quality with well defined QoS
  criteria and standardized engineering rules

6
1. Migration towards NGN
Genera direction for evolving Network Architecture

• Structure
• Simplification

7
1. Migration towards NGN
Access Network Structure Mixed Access
Local 40 km
8
Emulation scenario
1. Migration towards NGN

• An encapsulation process
• All services available to PSTN/ISDN users
• User experience not changed by the network
  transformation

9
Simulation scenarios - 1
1. Migration towards NGN

• PSTN/ISDN-like services available
• Availability of possible new services
• User experience is changed by the network
  transformation

10
Simulation scenarios - 2
1. Migration towards NGN

• Only PSTN/ISDN-like services available
• New experience for legacy terminal users

11
Overall architecture
1. Migration towards NGN
12
Key Motivation for introducing NGN
2. NGN Case Study

• Improve Infrastructure
• Replacement of Legacy Telecommunications All IP
• Deployment of Broadband
• Enhancing Society e-Society
• Fixed Mobile Convergence
• Various applications e-health, USN etc.

Harmonization
13
21CN - current UK network
2. NGN Case Study
14
21CN - simplified UK network
2. NGN Case Study
15
2. NGN Case Study
Vision and Goals of Korean NGN
- Build a state of the art information
infrastructure in the world - Create an
environment to use high-quality multimedia
services - Prepare core foundation of IT
Industry growth momentum
Vision
- Build an integrated network with the bandwidth
of 50 100Mbps that can offer seamless
multimedia services to 20mln wired or wireless
service subscribers between the heterogeneous
networks
10,000,000
1,500,000
4,500,000
Goals
Wired (50100M)
?
?
2005
2007
2010
10,000,000
500,000
3,500,000
Wireless (50100M at most)
?
?
2005
2007
2010
16
2. NGN Case Study
Broadband Converged Network (BcN)
Integrated network of the next generation, where
the users can safely access to BcN multimedia
services quality-secured integrated
Voice/Video/Data at anywhere and anytime
17
2. NGN Case Study
Overall Roles of BcN
18
2. NGN Case Study
1st Step (2004 2005)
OSS/BSS
PP

• Integration of Voice and Data network
• based on Open Architecture
• Service Convergence
• between Wired and Wireless
• Expansion of FTTC(VDSL/HFC)
• Introduction of New Service
• FTTH
• Terrestrial DMB, Satellite DMB
• IPv6 based Home Network

CP
Comm. server
Broadcasting server
Softswitch
Open API G/W
Broadcasting network
(IPv4/MPLS)
AGW
VDSL PSTN
DMB
3G
HFC
Home Network(IPv6)
19
2. NGN Case Study
2nd Step (2006 2007)
OSS/BSS

• Convergence of
• Wired Wireless network
• Transport layer based IPv6/MPLS
• Service Convergence of
• Communication Broadcasting
• Expansion of FTTH
• Introduction of New Service
• HPi and interactive DMB
• Ubiquitous Sensor network

PP
CP
WireWirelessBroadcasting Server
Softswitch
QoS/Security Control Server
Open API G/W
Transport layer based IP (IPv6/MPLS)
Broadcasting network
AGW
3G
DMB
FTTH VDSL
WLAN
HFC
Home Network/u-sensor Network
20
2. NGN Case Study
3rd Step (2008 2010)

• Converged Service Over
• Single Transport Layer
• Voice Network
• Internet
• Mobile Network
• Broadcasting
• High-speed Data Network
• Supporting New Service Requirements
• Broadband
• QoS
• Security
• Mobility
• Multicasting

OSS/BSS
CP/PP
Application Server
Integrated Softswitch
Open API G/W
QoS/Security Control Server
Integrated Network based IP (IPv6/MPLS)
OXC
AGW
4G
DMB
Hpi,WLAN
HFC, FTTH
Intelligent Home Network/ u-sensor Network
Integrated Terminal
21
3. Field Trial of NGUN
Overall Model of NGUN
NGUN Services
Disaster/crisis management
NGUN Applications
Structural health monitoring
Disaster Surveillance
Military Field
Agricultural control
Logistics, SCM
U-Health care
NGUN Middleware
Ubiquitous web services
Context modeling and management
SN Directory service
Management
Contents management
Spatial info management
NGN, Internet, etc.
Access Network
Access Network
Access Network
Access Network
Access Network
Access Gateway
SN Gateway
Mobile RFID Reader
SN Gateway
End Devices/Networks
Sensor node
RFID Reader
SN Gateway
NGUN Networks
22
3. Field Trial of NGUN
Application to Climate Change subject

• Solution against climate change
• A global issue in ICT fields as well.
• ITU is holding two symposia on ICTs and climate
  change.

Wisconsin Univ. 2004
Antarctic ice chunk collapsing
Glacier shrank, Mountain LHOTSE, Himalayas
1916 and 2001, Chamonix, Switzerland (Source
Green peace, Paris)
23
3. Field Trial of NGUN
Application to Weather Information Service
SNSP 2
Emergency Management Center
SNSP 3
Raw data
Sensed data
Sensor networks service provider 1
Consumer services SMS/Email/Call/Multimedia, etc.
National Disaster Monitoring Center
Value-added sensed data
Value-added service providers Weather info, local
nature info, security, healthcare, etc.
24
3. Field Trial of NGUN
Application to Healthcare Service
Connecting to insurance
Sensed data
Connecting to hospital
Sensors on Patients
Raw or value-added sensed data
Status report to family
Monitoring vital signs
Value-added service providers Weather info, local
nature info, security, healthcare, etc.
Emergency call
25
3. Field Trial of NGUN
Application to restructuring infrastructure -
Korea
Before 2005.10
After 2005.10
26
3. Field Trial of NGUN
Application to restructuring infrastructure -
Korea
Street light Mesh Node/AP
Mesh Node
180m
580m
150m
260m
WiFi -AP 2.4GHz
170m
180m
WiFi Mesh Node
190m
100Base T
390m
350m
WiFi Mesh Node
Switch
840m
WiFi-Mesh5GHz
100Base T
740m
Switch
510m
210m

• Sensors everywhere
• Monitoring every managed objects
• Managing street lights, road traffic, city
  facilities, stream and air pollutions, road
  freezing and flooding, etc.

750m
860m
WiFi -AP 2.4GHz
330m
Source Samsung SDS, 2007
27
4. Conclusion
Life with NGUN
Urban areas
Office

• Collaboration with other group using multimedia
  conference ? reduce cost
• Create new business from real-time and
  location-based commerce

• Routing support to permit seamless roaming
• Provide location-aware and personalized advice
  for vehicle drivers

Ubiquitous Networking
Home
Public facilities

• The home is constantly monitored (even
  inhabitants medical conditions)
• Support social connections of elderly people

• Real-time congestion and weather
  information-based traffic management ? increase
  road capacity
• Monitoring secular change of road and building ?
  prevent accident

28
Thank you foryour attention !!!