Joint ITU/IEEE Workshop on Ethernet - Emerging
Applications and Technologies
FTTx in Japan: Past, Present, and
Prospects for the Future
Ken-Ichi Suzuki,
NTT Access Network Service Systems
Laboratories, NTT Corporation
Geneva, Switzerland, 22 September 2012
Progress of Broadband
Infrastructure in Japan
NGN service has almost covered over Japan（Population coverage 90 %）
Number of FTTH user exceeds to 20 M. Market of FTTH will be matured.
Development of optical broadband network will be facing a new era.
Geneva, Switzerland, 22 September 2012
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Progress of Broadband
Service in Japan (1)
The number of FTTH subscribers exceeds 22 Million now.
It is expected to exceed 30 million by the end of March 2016.
Geneva, Switzerland, 22 September 2012
Press materials, Ministry of Internal Affairs and
Communications of Japan, “Quarterly data on the
number of subscribers, etc., of electrical
communication services in Japan”,
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Progress of Broadband
Service in Japan (2)
1Gbps high speed services are being provided at the same price
as 100/200 Mbps services in some area for both SFU and MDU.
Geneva, Switzerland, 22 September 2012
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Progress of Broadband
Service in Japan (3)
NTT has a share of 74.2 % and 16.55 million subscribers of FTTH services.
NTT has over 13 million IP Telephony (Hikari-denwa (0ABJ)) service subscribers
via FTTH Services.
NTT starts to provide MDU FTTH services using optical fiber wiring to connect
each residence.
Geneva, Switzerland, 22 September 2012
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Cloud & Broadband
Optical Services
Keep connectivity will be easily possible anytime and anywhere
Possible to get personalized information whenever we want
Optical and wireless converged broadband will be an important
key role
Geneva, Switzerland, 22 September 2012
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Broadband Optical
Service with High Mobility
Portable wireless router (Hikari-portable) provides optical services high
mobility.
Need to offload the mobile traffic (wireless) to optical access (wired).
Broadband services is personalized by means of various “smart handset”
Geneva, Switzerland, 22 September 2012
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Other Broadband
Services
Some value added services are provided via broadband optical
access systems.
Power consumption visualization service helps customers to plan
power savings.
Geneva, Switzerland, 22 September 2012
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Requirement of
Broadband Access
Advanced video services equipment and changing ways of watching
video services will spur further bandwidth demand.
“mobile traffic expansion issue” would be solved by optical access.
Expected Next-generation optical access as a significant platform for
future broadband ubiquitous services
Geneva, Switzerland, 22 September 2012
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CAPEX/OPEX
reduction
Operators keep CAPEX reduction strategy for strength of financial
basis
Higher capacity network will lead to increase of network
Cost reduction per user to the same level as the existing system
is key
Geneva, Switzerland, 22 September 2012
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10G-EPON with SoC
demonstration
1G/10G-EPON demonstration using OLT/ONU integrated with
MAC-SoC
Power saving operation using ONU sleep function
QoS evaluation of multiple services with different priorities
Geneva, Switzerland, 22 September 2012
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10G-EPON Field Trial
100km uncompressed HD video signal transmission using 10G-EPON
Development of wide-area Dynamic Bandwidth Allocation (DBA)
Remote performance monitoring of PON extender located outside plant
Geneva, Switzerland, 22 September 2012
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Other requirements
1G/10G coexisting
Energy efficient
Long reach/wide area and high split ratio
Synchronous10G-EPON
Application to future mobile backhaul will be an attractive candidate
Frequency synchronization is realized by using Synchronous Ethernet technology
implemented into 10G-EPON system
Time synchronization of PON is realized by 802.1AS implementation
Highly reliable 10G-EPON
High reliability is needed for higher-capacity and larger-splitting PON
Progress of keep connection services i.e. video distribution, real-time gaming
Cost-effective redundant configuration can upgrade and replace OSU
Interoperable 10G-EPON
SIEPON/G.epon compliant with some additional specification.
The use of some interoperability test program for SIEPON/G.epon
Geneva, Switzerland, 22 September 2012
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Conclusions and Recommendations
The number of FTTH subscribers exceed 22.3
million now in Japan.
That is expected to exceed 30 million by the end
of March 2016.
Development of optical broadband network will
be facing a new era “Mobility” and “Cloud”
10G-EPON is ready for commercial that has
flexible system configuration and its feasibility
was confirmed by some demonstrations and a
field trial.
Geneva, Switzerland, 22 September 2012
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