NGN Deployment Strategy toward
Bridging Digital Divide
Yuji Inoue
Chief Technology Officer
Nippon Telegraph and Telephone Corporation
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
2
Experiences in Japan / NTT
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
Present Situation in NTT
3
March 2006
FTTH
265 k
3.4 M
ADSL
-22 k
5.7 M
３G
1,448 k
22.0 M
２G
-963 k
28.6 M
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
1.6
60
56
4
1.2
A-Tel +ISDN
52
0.8
48
0.4
VoIP over FTTH
44
05/03
06
09
12
NGN Workshop Hanoi, 15-16 May 2006
06/03
0
VoIP over FTTH (M)
A-Tel+ISDN (M)
Rapid Shift to VoIP
(C)2006 NTT
Why FTTH & VoIP – Price -
5
Max. Speed
Down/Up (Mbps)
Monthly
Charge (US$)
47 / 5
100 / 100
22.3
22.1
ADSL
FTTH
0.5 $/Mbps
1 / 2.5
ADSL
0.2 $/Mbps
FTTH
(GE-PON)
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
Why FTTH & VoIP – ARPU -
x 2.6
6
60 $
/mo.
(approx.)
23 $
/mo.
Metallic
NGN Workshop Hanoi, 15-16 May 2006
FTTH
(C)2006 NTT
Demand for NGN in Japan
7
1. Social Demand
i) Shift to Broadband & Service Convergence
ii) New infrastructure toward “Aged Society”
iii)Digital opportunity everywhere from Digital
Divide
2. Internal Demand
i) Life time of existing digital switch
ii) More competitive in ever-changing business
environment
Solutions ONLY by NGN
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
Implementation
8
1. Build a next-generation network that is
open, flexible, easy-to-use, interoperable, and safe&secure
=> 30 million FTTH users by 2010
2. Strengthen our competitiveness and
financial base (Targets up to 2010)
- Annual additional sales: 5 billion US$
- Total capital expenditure: 50 billion US$
- Annual cost reduction: 8 billion US$
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
NTT’s NGN Architecture
Core
Network
Access
Network
IP Broadcasting
Session Control
Server
GW
Transport Router
Edge Router
Service Edge
mass user
Business user
OLT
ONU
Other Carriers / ISPs
Service
Control
FMC
Mobile Network
Applications
9
HGW
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
10
NGN as Global Infrastructure
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
Deployment Strategy of IBMW
11
Next Generation
Internet?
Internet
Broadband
Mobile
Wireless
Next Generation
Broadband?
Why not as
NextNGN?
Generation
Mobile?
Next Generation
Wireless?
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
Rough Estimation: Deployment Cost
12
Ratio of cost per user to provide 1-10Mbit/s
access in urban area:
If provided
independently
Internet
20
Mobile
40
Wireless
40
100
NGN Workshop Hanoi, 15-16 May 2006
If deployed as
NGN
80
(C)2006 NTT
Digital Divide in Japan
13
1. “Mbit/s” access for the rural area
- Deployment cost issues: Geographical
problems, population density, …
- Optical lines in rural area is still proceeding
2. Accessibility for all generations
- Reliable, secure, safe, and easy to use, for all
generations including aged people
<= Solutions by technology:
- Zero configuration / zero maintenance
- Security functions in Network
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
Access Service in Rural Area
14
Example: Optical Fiber +Wireless Access
Extension
of area
coverage
to 10km ?
Wireless Access
Optical fiber
B-Flets (FWA Type)
WIPAS:
- 20 US$ /month
- 1km coverage
- 26GHz band
- 80Mbit/s radio
transmission rate
- 46Mbit/s max transfer
rate
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
Digital Divide in Global
15
1. Causal relationship is complicated
- Regional factor: population density,
geographical conditions,
- Social factor: difference of income,
generation, and ICT literacy, etc.
2. What should we do?
- Problem statement, definition
- Priority: What to solve at first?
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT
I am a candidate for the Director of
ITU-T
Challenge in a Changing Era, NGN
Thank you
very much
Yuji Inoue
NGN Workshop Hanoi, 15-16 May 2006
(C)2006 NTT