Citation preview
FTTH*
Good afternoon everyone! As we know , with the development of the
society more and more bandwidth will we need. FTTH solve this
problem well.Today I will share some FTTH features and fundamentals
with us. So let us begin.
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Objectives
Upon completion of this course, you shall be able to:
Understand the developing trend of Access Network
Describe PON Network Features
Describe PON Network Architecture
Outline PON Basic Concepts
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For smooth going stand this courseyou should be familiar with
computer network. And upon completion of this course ,you shall be
able to ……
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Question
Is FTTH a kind of new technology or old technology?
Is FTTH expensive or cheap?
Why we choose FTTH?
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Before completion of this course , I want to talk about the answer
of this question. Who can give me his understanding?…… Upon
completion of this course I can assure you , you will be a clear
answer of this question.
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FTTH Definition
ITU-T: Fiber to the householdno copper between CO and
households
FCC: “H” includes both household and small business
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FCC (Federal Communications Commission) Now I will be share
with the definition of FTTH in different standardizations.
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……
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For the access network technologies, there are normally two ways,
one is fixed and the other way is wireless way, here today we are
talking about fixed only. There are also two ways of deploying
Optical fiber method, one is active method and the other one is
passive method. Current mass ftth deployment is based on the
passive method, and the two typical technologies are epon &
gpon. As the circle shows.
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Reduced operations and maintenance costs
Excellent new services platform (Can IPTV be good performance over
ADSL?)
Benefits of optical fiber:
Secure
Cheap
Olt-onu upstream down stream. Theoretical rate 1.25G. Optical fiber
theoretical transmission rate is unlimited.
Passive network reduces the components. Simple architecture makes
reduces ...
ADSL 8Mbps max. Olt- onu 20KM. ADSL 3-5KM.
Why fttx? What we can get from this technology? This slide give us
the answer. Optical fiber access method with its reliability and
broader bandwidth features are being get more and more attentions
from all the operators. Depend on this, FTTX can provide the
customer more services with cheaper bit and lower OPEX.
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More and more operators are changing their roles from single
service providers to a integrated providers. They r choosing a
better ways & technologies to provide more services.
Optical fiber access method with its reliability and broader
bandwidth features are being get more and more attentions from all
the operators.
With the service evolution,FTTX experience 3 phases at this stage:
1st High speed internet service
; 2nd Multimedia service, 3rd Integrating Other VAS(value-added
services)
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2 Mbps
On-line Gaming
1 Mbps
8 Mbps 16 Mbps
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Now our life increasingly rich ,more and more requirement will we
need .Bandwidth have a important role in our life .Different
services needs different bandwidth , such as ……
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QHow to do
AOptical Access Network
HDSDN: American standard 0.51mm , 2M max 5km.
ADSL: 3-5KM 8Mbps
ADSL2: 3-5KM 12Mbps
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Distance affects the performance of xDSL heavily
Distance is not a problem for FTTH as the max reach is over
20km
FTTH supports all the available services!
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VDSL very high bit rate digital subscriber loop, max 55Mbps.vdsl2
has better qos ,better snr signal noise ratio. Adsl asymmetric
digital subscriber line, max 8mbps,adsl2 12mbps.SHDSL smmetric high
bit rate digital subscriber line . The larger the diameter of the
telephone the longer the distance it could reach. The transmission
rate depends on the diameter of the telephone wire. ISDN integrated
service digital network, based on circuit-switched network.
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CPE Customer premises equipment. Two Ways of Deploying FTTx
—Passive & Active. We can get different structure between
optical fiber and cooper cable fFrom this comparison map .Normally
the passive network is recommended.
premise [premis]n. pl.]
Optical fiber cable Cooper cable
Active module
Passive module
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……
……
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PON offers lower operational Expenses compared to Active
Ethernet
Lower power bills
No need to perform any 100 Base T optical card activation at the
street cabinet level
Only deployment needed at street cabinet level is fiber cross
connection and optical splitter installation
No need to maintain batteries in street cabinet level for lifeline
voice service
Less Floor Space
lifeline;:
Lower power bills: no plant power node is required. Because no need
to perform any…..
At the street level only optical splitter is required. Splitter is
passive component, no battery is required.
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Phase II: Through trial project accumulating experience for project
implementation and business model (2003-2005)
Phase I: Testifying of technical maturity and equipment
reliability(1998-2003)
Phase III: Perfection the O&M model through small scale
deployment(2006-2007)
The development of FTTH needs synergy of all the production value
chain
Phase IV: Large scale commercial deployment(2008-?)
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Accumulating
1. In experimental stage. 2. the field trail operation proves its
reliability. 3 small scale deployment. 4 large scale commercial
deployment.
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Agenda
The History of PON
First PON activity initiated by the FSAN group in the
mid-1990s.
Initial standard covered 155Mb/s transmission based on ATM known as
the APON/BPON standard. Standard enhanced later to cover 622Mb/s as
well.
In 2001, the IEEE started the development of an Ethernet based
standard---EPON.
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PON
Alloptic SDH PON(T1/E1/T3/E3)—EPON FSAN founded in 1995 ,by 7
service providers,devoted itself to broadband optical access
network.
AT&T
Fiberhome is good at EPON. EPON technology and bandwidth could
satisfy the market. Gpon is proposed to push out the EPON
providers. Competition makes us stronger.
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ATM encapsulation
Out of date
GEM encapsulation
IEEE EFM standardized802.3ah
10GEPON
GEM encapsulation
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PON is in fact a not new technology, the oldest mass commercialized
PON is BPON, but this technology is old and very few venders using
this technology any more. EPON and GPON r currently widely deployed
by operators. EPON is a little ahead than gpon. However, gpon
develops very fast this recent 2 years.
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No active devices between end office and subscribers
No need for equipment room and facilities between OLT and ONU
ends.
Save OPEX & CAPEX.
P2P Active Method—Active Ethernet
More trunk fiber
More space room and facilities for each layer
Difficult management for equipment & service provision.
Not flexible and not suitable for large deployment
More deployment & engineering cost.
Save trunk fiber.
Port utilization is lower.
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Normally, there are 3 kinds of FTTH network architectures, and we
recommend 1st one, p2mp passive method because this method has so
many benefits for network construction, such as..
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SNI: Service Node Interface
UNI: User Node Interface
IFPON: Interface for PON
OLT: Optical Line Termination
ONU: Optical Network Unit
ODN: Optical Distribution Network
Located in Central Office
ODN which is passive network infrastructure in FTTH needs being
completed designed
Located in buildings or home pass
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And then we go to the PON network topology. We define the interface
between the OLT and up layer equipment, such as exchange, transport
equipment or metro E equipments as SNI. The SNI may be
GE/XGE/E1/STM-1. The interface between the ONU/ont and user side is
UNI, such as FE/GE, POTS, E1,etc. IFPON is the interface for PON.
ODN which is passive network infrastructure in FTTH needs being
completed designed. ODN locate between OLT and ONU/ONT. OLT and ONU
equipments should be managed by access network management
system.
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FiberHome
PDP
CO
10G/1G
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This slide gives us a general solution overview for FTTX
application, which can help us to comprehend the FTTX
network.
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FSAN found in 1995
In 1998ITU-T took FSAN’s results into ITU-T G.983 series
standardsthe first broadband PON standard in the industry
In 2001FSAN renamed APON as BPON
APON/BPON
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In view of the situation of optical transport network and the
future development of network technology and service, this slide
discusses the evolutional strategy of intelligent optical network,
and presents a mature and feasible solution.
Now let us begin pon technological evolution .APON: ATM PON ATM
encapsulation.
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A PON technology based on Ethernet
Major standard: IEEE 802.3ah
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Toplogy:
EPON can satisfy the basic use of our life . And now it is largely
deployed in the world. This is some basics of EPON.
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splitter ratio1:32/1:64
EFM points out many advantages of EPON based on Ethernet as core
technology, including protocols maturity ,technology simple
,extension flexibility and users-oriented.
Based on IEEE 802.3ah
EPON system don’t choose expensive ATM hardware and SONET
equipments, making it compatible to the existing Ethernet network.
It simplifies system structure, decreases cost and makes itself
flexible to upgrade.
Equipment venders focus on optimizing the function and
practicability.
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PON use WDM to realize bi-directional transport on a single
fiber
In order to distinguish the signals in two different directions,
two multiplexing technologies adopted
TDM for downstream
TDMA for upstream
TDM TIME DIVISION MULTPLEX
1310nm is for upstream , and 1490nm is for downstream , 1550nm is
for CATV
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Now let us learn the technology of pon downstream .Downstream data
is broadcasted to all onus. But the ONU ,only the specific packet
is processed ,and the rest packet will be discard.
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Now let us begin pon upstream data transmitting .This slide is for
the mode of pon upstream . And don’t get misunderstood. The packing
process is in OLT not splitter.
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PX20: 24dB
Split ratio
1:64 --> 1:128
1:32--> 1:64
Flexible and simple OAM function
TDM service & synchronized clock function
Native TDM, CESoP
Support DBA, QoS is supported by LLID and VLAN
cost
--
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Cesop: TDM ENCODER MODE. Powerful QOS.
TC transmission container
12M
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This is a global map, by the end of last year, east asian countries
ftth develop very fast, while euro plus America ftth sub even below
only s k ftth user
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World Wide FTTH/FTTB Penetration
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The ftth penetration rate is still similar, pacific assian
countries lead far head. However, China, US, Australia have big
potential
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Over 30 Million FTTH/B subscribers at 4Q of 2009 ….
Nearly 80% deployments are FTTB
Pure copper DSLAM deployment is nearly stopped
EPON is far ahead, GPON is in fast development
It’s anticipated over 50 Million subscribers by 4Q 11
Dominated FTTH builder in China.
FTTB+LAN is the main application scenario
10 million EPON subscribers
Target at shortening copper line between users and equipments
within 500m in 3~5 years.
More than 5 million EPON subscribers.
15 million EPON users will be deployed in the next a few
years.
Many rounds of GPON tests are done in this two years.
Pay more attention on 3G mobile, and GPON FTTH Deployment is on
going.
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Talking about global ftth market, china with its large population,
high economic growth and rapid progress on telecommunication
infrastructure makes a positive ftth requirement.
Ctc is the dominated ftth constructor in china, and already deploy
over 4 million EPON user all over the china, the target of ctc is
shortening copper range within 500 miters. It has the plan of doing
trial gpon project, but now still around 2k user plan till
now.
Cuc is the second force of deploying ftth in china, around 2
million epon users in china. According to the latest news, 11
million epon users will be deployed by cuc in the next few years
and for gpon project, not a commercial project.
Cm is now paying more attention on 3g wireless development and it
will take time to consider invading fixed access network. Cm prefer
gpon to combine mobile and ftth together.
Ftth in china is truly driven by the force of the requirement from
users, government rarely give the financial sponsorship and
support.
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1.FTTH will occupy around 40% of FTTx
market in China in the near future.
2.GPON and EPON tend to balance
Chinese FTTx market in the near
future
EPON
GPON
4.FTTx subscribers in China will reach
over 80 million within three years.
5.MSO will be a key player in Chinese
FTTH market.
Telco’s network
MSO’s network
Source from WRI Domestic Marketing Research Institute
ITU-T
G.987
WPON
m
OLT
ONU
ONU
ONT
ODN
1,2,3,4,5,6
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(Japan: the FTTH leader)
More new EPON subscribers than new DSL subscribers since April
2005.
16Million EPON subscribers at 4Q of 2008 and still around 800 000
new FTTH subscribers per quarter ….
Nearly 40% are FTTB.
In 2Q of 2008 total Broadband subscribers reached 29.33 Million
with DSL counting now less subscribers (12.29 M) than EPON.
Government’s proactive approach to FTTH deployments: 30 Million
FTTH subscribers in 2010 as a ambitious initial.
Service
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Japan is the global ftth leader, over 16 million epon users at the
end of last year. Ftth is its main application mode, business mode
covers single play, double play and triple play, their business
mode is mature and the government even does some support both on
financial and policies. Without doubt, japan is the most successful
areas of deploying fiber access network.
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In South Korea
4 Million EPON users at the end of 2008. Nearly 25% are FTTB
KT (Korea Telecom) is dominated EPON builders.
SKB (SKBroadband) is getting more interesting on GPON.
NG FTTH is beginning deploying from 2009, with OLT merging
converged SW functions.
In Malaysia
2 Million GPON users at end of 2010.
First FTTH mini roll out project in Malaysia has been delivered
successfully by FiberHome.
100% application mode is based on FTTH+RG mode and no FTTB solution
till now.
In Australia
34 billion USD will be invested on NBN (National Broadband Network)
and FTTH will occupy biggest part of it.
Six areas will be chosen as the pilot project since September,
2009.
In Singapore
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For the other asia-pacific areas, sk is striding the ng ftth phase
which aims at taking advantages of their fiber resource. Malaysia,
sigapore have already kick off their ftth plan. Countries such as
Aus, phi as well as plans the fiber access as their main broadband
access way.
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FTTH in North America
At end 2Q08 Verizon has signed 2 million FiOS FTTH subscriber and
has nearly 1.4 Million FiOS TV subscribers
By 2010, the FiOS network will have passed 18 million homes, or
about half the households Verizon serves
AT&T (more FTTN oriented) and Verizon launched Fibre access for
delivering HDTV & Triple Play
FioS ARPU of 130 USD – revenue up 53% compared to 1Q08
In North America, Telcos and Cable companies (MSOs) share the
residential market.
Verizon’s FiOS deployment is accelerating MSO’s FTTH
deployment.
Verizon FiOS FTTx Subscriber Forecast
Year-End 2008
Year-End 2009
Year-End 2010
1,000,000
2,000,000
3,000,000
BPON
GPON
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Ftth development in us is not as fast as other areas, there r 2
main player group as the operators, one is teleco and the other is
MSO (multiple services operators). As the figure shows, bpon and
gpon develops step by step and epon will boom this year in MSO
market. Maybe the economical crisis will decrease the anticipation
of epon deployment; however, epon seems still with the bright
future and never die in north America
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Ftth in euro develops not so fast, it is also due to the economical
crisis and as well as their culture of hesitating trying new
things. Deploying ftth in European countries where r mainly gray
field is not so easy.
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EPON FTTx Subscriber Forecast
EPON is the technology of choice for FTTx for Asian Carriers
USA Cable MSO market will be the next geography for EPON
deployments
Japan leads in FTTH, while China will denominate MDU/FTTB
deployments
Source: Ovum RHK , 2008
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The next 2 pages r some authoritative agencies’ giving forcast in
pon market. In first slide, epon will increase sharply in both ftth
and fttb solution.
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Worldwide EPON ONU Port Shipments will grow at 30% CAGR
EPON ONU & OLT units dwarf BPON/GPON by a factor of 3:1
Source: Linley Market Research Group, 2008
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US MSO EPON FTTH Forecast