I nternational Telecom m unication Union ITU-T Technologies and applications Technologies and applications of Passive Optical Networks of Passive Optical Networks (PON) (PON) Yukio Nakano Hitachi I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6
FTTH Penetration in Japan ITU-T 5M Number of FTTH users 4M 3M B-PON introduction Sept. 2002 2M 1M 0 June Dec June Dec June Dec June Dec 2002 2003 2004 2005 Source: Ministry of Internal Affairs and Communication, Japan I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 2
PON Technologies ITU-T Optical splitter (passive) Bi-directional transmission over one fiber using WDM 1490nm ONU CO 1310nm Core OLT Network ONU Upstream packet multiplexing on fiber without collision ONU I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 3
PON Advantages ITU-T Very high speed data up to 1 Gbit/ s to o home and businesses Maintenance cost reduction due to no o electronics between CO and customers Low cost due to fiber and CO interface o shared by several customers Constant data rate regardless of reach o Multiple applications including data (IP), o video and voice (triple play) I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 4
Broadband I nternet application ITU-T o FTTH in Japan started from simple application of IP/ Ethernet and it is still dominant o Simple indoor ONU enabling economical Broadband access of 100 Mbit/ s best effort service o The service is like simple extension of ADS L Home CO ONU OLT Internet Internet Internet I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 5
Triple play w ith RF video ITU-T o RF overlay using WDM provides conventional CATV type video service in addition to Broadband Internet o Very popular in North America Home or Business Voice Voice Voice Central Office Network Network Network OLT Downstream Data ONT Data + RF video Data Data WDM Data Network Network Network Voice Upstream RF RF Data RF Video Video Video RF video I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 6
I P triple play application ITU-T o Home Gateways to separate IP video and provide POTS conversion o Entire network based on IP and Ethernet CO Home Voice Voice Voice Network Network Network ONU Video Video Home Video OLT Network Network Network Gateway Data Data Data Network Network Network I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 7
PON Com parison ITU-T B-PON GE-PON G-PON Standard ITU-T G.983 IEEE 802.3ah ITU-T G.984 Downstream 600 Mbit/s 1 Gbit/s 2.4 Gbit/s data rate Upstream 150 Mbit/s 1 Gbit/s 1.2 Gbit/s data rate Transmission Ethernet + ATM Ethernet Format TDM +ATM (Note) Rates of common practice. I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 8
W hy GPON now ? ITU-T S tandardized by telecom operators and telecom o vendors in ITU-T Various operation and management capability o inherited from conventional proved telecom technologies Future-proof bandwidth o • 2.4 G / 64 users = 35 M per user • 35 M = 6 M (HDTV-MPEG4) x 4 ch + 10 M (Internet) Suitable for business users because of various o QoS and bandwidth management I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 9
GPON exam ple ITU-T ONU (Single Family Unit) IPTV IPTV IPTV systems systems systems 2.4 G OLT 10G/1G Internet Internet Internet 1 1.2 G 0 0 M 100M VoIP VoIP VoIP 20 km systems systems systems 1G ONU (Multi Dwelling/Tenant Unit) I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 1 0
Possible Future Directions ITU-T Technology available and massive GPON o deployment soon IP HDTV service in near future o More bandwidth by higher transmission o rate or WDM technology Longer reach by optical amplifier o Higher splitter ratio (more users per o PON) by optical amplifier I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 1 1
Conclusion ITU-T B-PON initiated the first massive PON o rollout in Japan PON technology is suitable for triple play o services (voice, video, data) Future-proof G-PON technology available o and soon to be deployed massively I TU-T W orkshop “NGN and its Transport Netw orks“ Kobe, 2 0 -2 1 April 2 0 0 6 1 2
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