FTTH: B-PON, GPON, EPON

FTTH: B-PON, GPON, EPON
Don McCullough
VP Marketing
Ericsson
May 9, 2007
Technology Choices for the Future
You are never too thin, never too rich and
You never have enough bandwidth.
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PON Agenda
Market Drivers
Technology
Q&A
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Acronyms
PON: Passive Optical Network
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PON System components
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FTTH: Fiber to the Home
B-PON: Broadband PON
GPON: Gigabit PON
EPON: Ethernet PON
ODN: Optical Distribution Network
OLT: Optical Line Terminal
ONT: Optical Network Terminal
WDM: Wave Division Multiplexing
Digital Subscriber Line
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ADSL: Asymmetric Digital Subscriber Line
VDSL: Very High Speed Digital Subscriber Line
DSLAM: Digital Subscriber Line Access Module
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Market Drivers for GPON
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What’s Causing the Need for Speed?
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Copper to Fiber: Circuit to Packet
Steep traffic increases in access & aggregation required
Bandwidth:
• From 1.5 Mbps to 1 Gbps
Gbps
IP Services
Mbps
TDM/ATM
Circuit to Packet
• TDM/ATM to IP
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Law of Physics: BW versus Reach
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Shortening Copper Access Loops
POTS 18Kft loops
DLC 12Kft loops
Dial up
Class 5 switch
ADSL 12Kft loops
DSLAM
PON
PON
FTTH
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VDSL2 <4Kft
1.5 – 3.0
Mbps
20-50
Mbps
100
Mbps
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PON Technology Comparison Chart
GPON
Gigabit-capable PON
B-PON
Broadband (ATM)
PON
E-PON
Standard
ITU-T G.984
ITU G.983
IEEE803.2ah
Protocol
GPON Encapsulated
Mode (GEM) supports:
Ethernet
TDM
ATM
ATM
Ethernet
Speed
2.5 Gbps Downstream
1.2 Gbps Upstream
622 Mbps Downstream
155 Mbps Upstream
1.25 Gbps Symmetric
Maximum
split ratio
64 users
32 users
64 Users
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Bandwidth Demand Rising
• MetroEthernet access
for business
• Government, schools,
community access
• Triple Play to existing
homes
• New home with value
added communications
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PON Trends World-wide
GPON
BPON
GPON/
EPON
GE-PON
GPON/
EPON
BPON
GPON
GPON
GPON/
EPON
GPON
GPON
GPON
GPON has the potential to become the global standard
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PON – A Multi $B growth market
Global PON Equipment Revenues
2500
M$
2000
GPON
EPON
BPON
1500
1000
500
0
2004
2005
2006
2007
2008
2009
Source: Infonetics
GPON displacing EPON/BPON and accelerating Fiber roll-outs
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PON Cost
Factors
Full Service Access Network (FSAN)
Split ratio
OLT cost efficiency
ONT
65% TO 855 of
network cost
Video
ONT
GPON 2.5G
EPON 1.25G
Voice
OLT
Data
GPON 1.25G
EPON 1.25G
C.O.
ONT
Speed
More subscribers/PON
Higher speed services/sub
Access systems face extreme price pressure
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PON Competitors
North America
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Rest of World
Alcatel-Lucent
Ericsson
Tellabs
Motorola
Calix
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Alcatel-Lucent
Huawei
Ericsson
ZTE
Hitachi
ECI
Nokia-Siemens
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PON Technology
B-PON & GPON Standards
ITU-T G.983 & G.984
Initiated by Full Service Access Network (FSAN)
– Carrier lead: BT, ATT, NTT, TI, FT, DT, etc
Comprehensive specification
– PHY layer to OAM&P
Interoperability initiatives
– BPON
NTT 03/2004, SBC 09/2004, Globalcomm 06/2005
– GPON
05/2006 at Telcordia – 10 participants
09/2006 in San Jose, CA U.S.A.
12/2006 at ITU Conference in Hong Kong
May 7, 2007 at FSAN Lannion France
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EPON Standard: IEEE 802.3ah
IEEE 802.3ah Ethernet in the First Mile (EFM)
is an amendment to IEEE 802.3
Comprised of P2P and P2MP (EPON)
Additions to the 802.3 standard for compliance
with architecture:
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Multi-point control protocol (MPCP) - timeslot allocation
OAM - Operations, Administration, and Maintenance (OAM)
for subscriber access networks
Shared-Medium Emulation (SME) or P2P Emulation sub-layer
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ITU PON Network Architecture
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ONT
B-PON or GPON Solution
Voice
Class 5
Switch
ATM
OLT
Soft Switch
B-PON
622 Mbps @ 1490nm
155 Mbps @1310nm
RF @ 1550 nm
W
D
M
GPON
2.5 Gbps @ 1490nm
1.25 Gbps @1310nm
RF @ 1550 nm
Ethernet
RF
Video
IP Router
n
IPTV
Fiber-To-The-Home
Multi Dwelling Unit
Multi Tenant Unit
Fiber-To-The-Business
RF video 1550nm
Video
Headend
Fiber-To-The-Curb/Node
EDFA
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PON functional overview
Downstream Voice & Data
Downstream
Voice & Data @ 1490 nm
1
OLT
1
2
3
Up to 32
2
1
2
1
2
ONT
1
3
ONT
2
3
ONT
3
ONT
V
3
Downstream
Video @ 1550 nm
OLT
V
ONT
V
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ONTs filters out its own data based on
MAC/VPI/VCI/ID from downstream TDM.
Downstream security maintained by
encryption keys.
Downstream video using a separate
wavelength
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Up to 32
ONT
Continuous TDM broadcast
GPON = 2.5 Gbps
OLT – ONT Security: AES
55-870 MHz RF ≈ 5.2 Gbps
V
Upstream
Upstream @ 1310 nm
ONT
1
ONT
2
ONT
3
1
1
2
3
2
OLT
Up to 32
3
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GPON = 1.2 Gbps
TDMA Time Division Multiple Access
assigned burst for bandwidth sharing
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PON OLT System
Density
– Service 24 to 120 PON ports
– 750 to 7500 Subscribers
Switching capacity
– 48 Gbps to 320 Gbps
– Concentration 5:1 to 1:1
PON OLT blades
– B-PON and GPON compatibility
– Density
Uplinks to the network
– TDM for voice
– ATM
– Ethernet GigE and 10G
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*2008
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Single Family ONT
Services
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POTS
RF Video
IPTV
Ethernet services
Environmental
– Indoor (North America)
– Outdoor (Rest of World)
Cost
Powering
– Locally powered
– Battery back up
B-PON or GPON or both
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OLT and ONT Interoperability
OLT and ONTs from different vendors must interoperate
– Prove standards compliance
– Lower long term cost via competition
FSAN history of interop testing
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Similar to DSL plug-fests
B-PON and now GPON
May at Telcordia in N.J. U.S.A.
September in San Jose, CA U.S.A.
December at ITU Conference in Hong Kong
May at FSAN in Lannion France
Going on this week
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PON Discovery & Activation Principles
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1. OLT opens a discovery window granting
new ONTs on PON to communicate with OLT
ONT
2. New ONT sends identity and
configuration information to the OLT
OLT
ONT
3. OLT measures Round Trip Time
4. OLT assigns the new ONT an ID
and a time stamp (gate for start &
stop time) for upstream TDMA
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ONT
Multi-cast Video and IPTV Services
FTTH ONT
STBs
Multicast
VOD
Multicast
source
VOD
Multicast
Multicast
VOD
source
Multicast
Multicast
Multicast channels
channels are
are transported
transported once
once and
and
viewed
viewed by
by many
many
Point-to-point service (VOD or data) requires connectivity and bandwidth
Multicast of popular channels saves transport and bandwidth
Multicast requires 1-to-many switching in the access system
Internet Group Multicast Protocol (IGMP) provides multicast (1:many)
switching in IP networks
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PON Components
Splitters
The optical splitter is a passive device
Splitters are a main component of PON
Depending on the light direction, this device
either splits the incoming light and distributes it
to multiple fibers or combines it onto one fiber
A variety of types are available to meet the
architectural requirements of OAN
1X2
1X4
1X16
1X32
1X8
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Other Topics in PON
Split ratios 1:32 versus 1:64
Quality of Service (QoS)
Security and Encryption
Bandwidth Sharing with Dynamic Bandwidth Allocation
Multi-Dwelling Unit ONTs
Business services
Regulation and video franchises
Management and OSS interfaces
Optical effects of RF video
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PON Future: WDM PON or 10G PON
Standards? Work in progress
NGN FSAN activity
λ1 λ2
λ1 ….λ32
FR
O/O
λ31 λ32
Transport
ATM
SAN
Optical
Network
Service
T3/E3
Voice, Internet, IPTV, SAN, etc..
GPON, EPON, SDH/SONET, GbE, ESCON, etc…
WDM
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GbE
E/B/GPON
OLT
TDM (2G)
Packet (3G)
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Q&A
Thank You