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FTTx in China – Current Status and Future Prospects. Chengbin Shen , R&D Director , Shanghai Research Insitute of China Telecom [email protected]. Joint ITU/IEEE Workshop on Ethernet - Emerging Applications and Technologies (Geneva, Switzerland, 22 September2012). - PowerPoint PPT Presentation
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Geneva, Switzerland, 22 September 2012
FTTx in China – Current Status and Future Prospects
Chengbin Shen,R&D Director,
Shanghai Research Insitute of China Telecom
Joint ITU/IEEE Workshop on Ethernet - Emerging Applications and Technologies
(Geneva, Switzerland, 22 September2012)
Increasing number of BB subs in China
and Technology Evolution• The migration from ADSL2+ to FTTx or even to FTTH is steadily acc
elerating• In early years, subs not served with ADSL were provided with
Ethernet based FTTB; Currently, subs not served with ADSL are provided with PON-based FFTx
• China BB sub installed base is estimated to reach 180 million active ports by 2014
0
20
40
60
80
100
120
140
160
180
2005 2006 2007 2008 2009 2010 20110%
5%
10%
15%
20%
25%
30%
35%
40%
45%
38
52
66
83
103
126
156
26
37
52
67
84
100
115
total Subs (DSL+FTTX) ADSL Subs Growth Rate (total) Growth Rate (ADSL)
CTC BB sub Growth
83.7M in the middle of 2012The trend is clearly towards increase in BB sub count
0
20
40
60
80
100
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
Number of Broadband Subsribers
2.5
7.4
14.2
21.0
28.4
35.7
44.3
53.5
63.5
76.8
Mill
ion
Relatively low BB penetration in China• China's Broadband Household penetration
(~30%; end of 2011) is lower than that of developed coutries, and is on pair with the world’s average value, but only slightly higher than average for developing countries;
• Great development potential and market opportunity!
Year
China's BB household penetration
2010 23.7
2011 29.5
Broadband Technology Migration Milestones in China
Before 2007, ADSL/ADSL2+ was the dominant technologyIn 2007, CTC and other main operators started massively deployment of fiber access based on "Fiber-IN & Copper-OUT" strategy after China Telecom achieved the all-around and large-scale IOP of EPON GPON and 10G-EPON began deployment after 1G-EPON became mass deployed
2000 2005 2007 2009 2010
10M
50M
100M
ADSL
ADSL2+
10G-EPON
GPON
All these technologies will co-exist in CTC access network
EPON
EPON in CTC network deployments scenarios
Based on comprehensive analysis on TCO , bandwidth capbility, technol. Trend, etc., China Telecom adopt different deployment mode to local conditions:
Provide to all new businesses •buildings equipped with fiber•FTTO or FTTB scenarios
Residential customer and urban areas
Business buildings and urban areas
Rural areas
Green field (new area)• Stop deploying feeder &
distribution copper wires• FTTB (PON) + Ethernet before
2010; FTTH since 2010 Brown field (existing area)
• (preferred) FTTB (PON) + DSL with copper wire length < 500m before 2010
• Bandwidth target: 8-20Mb/s• some residential cell were upgra
ded with FTTH since 2010
Principally stop deploying feeder copper wiresfiber to the village plus DSL
•EPON (preferred)•P2P
Bandwidth target: >4Mb/s
Fiber-in & Copper-out in CTC networksfrom FTTB/N to FTTH
From 2008 to 2010, through EPON deployment in FTTB/N architecture:1. Customers’ access bandwidth improved significantly2. EPON equipments and ODN technologies were improved, and China Telecom completed OLT distribution in key network points
in 2010, EPON is mature enough and ready for FTTH mass deploymen due to:• attractive equipment price• simplified network engineering• fewer technical challenges• simplified IT services• improved service processand CTC moved to FTTH era
"Fiber-in & Copper-out" Changes in CTC BB network capacity
Ethernet19%
DSL80%
PON1%
2007 Q1, 2011
DSL59%
Ethernet10%
FTTB(PON)26%
FTTH(PON)5%
China's EPON Ecosystem
CTC has played the key role in developing EPON ecosystem in China
ASIC Optics
CTC announces “Broadband China, Optical City” project
On 16 Feb, 2011, China Telecom announced the grand project to accelerate FTTH deployment in China
In three years, CTC will complete fiberization of all cities’ BB networks to achieve the target of 100M to home, 1G to buildingby the end of 12th 5-Years (2015), CTC plans to pass 100+ million homes with FTTH
Progress and planFTTH home pass (new): 2010: 10M; 2011: 30M; 2012: ~25M, FTTH subscribers (new): 2010: 1M; 2011: 5M; 2012: >10MFTTB/N home pass (new): 2009: 7M; 2010: 10M; 2011: 10M;2012: >7M
China's nation broadband strategyThe central government of China is drafting a nation-wide broadband strategy entitled “Broadband China Strategy”. This strategy intends to accelerate China's BB network upgrade and service developmentContent of “Broadband China Strategy”: By the end of 2015, the total number of BB subs
to reach 250M+ Access bandwidth to reach average of 20Mbps for
urban residential users, and at least 4M will be provided for suburban users
By the end of 2020, China will provide advanced BB information infrastructure for all citizens at the international quality level.
In 2012, new FTTH-passed homes will reach 35M+, and more than 50% broadbnad subscribers will enjoy the access bandwidth of no less than 4Mbps
Development & Application of 10G-EPON China Telecom deeply involved in 10G-EPON standardization and product
IOP . In April 2011, CTC achieved 10G-EPON interoperability at system level
10G capable PON will be deployed first to improve MDU’s uplink bandwidth to achieve FTTH-like capacity for each subscriber
More than 500 ports 10G-EPON-fed MDU are already in operation in China Telecom networks. More are on the way.
EPON
40G PON
2009
GPON
10G-EPON
XG-PON1 XG-PON2
2010 2011 2012
Asymmetric &Symmetric
10G GPON
Asymmetric Symmetric, no plan
IEEE Std 802.3av released in Sep, 2009. Commercial 10G-EPON deployment in Q1, 2010
2010.11release XG-PON1 standardCommercial chipset and optical TX: Q2,2012Commercial deployment: end fo 2012
10G-PON based FTTN/C+VDSL2 10G-PON based FTTN/C+VDSL2 plays more
important role in China than ever before Thanks to its high data rate, it is ideal for supporting
data feed for MDU ONU. Current 10G-EPON deployment scenarios are primarily focused on FTTN
VDSL2 and its follow-up technologies is the best cost-effective for brown field upgrade, especially when used with 10G-EPON for backhaul.
10G-PON based FTTN/B+ VDSL2 provides FTTH-like access bandwidth with low cost and simple engineering
Current EPON/GPON based FTTN+ADSL2+ will be migrated to 10G-PON based FTTN+VDSL2 in the near future.
THANK YOU!