optical fibre communications in the context of ftth/b · global ftth panorama –september 2016...
TRANSCRIPT
Optical Fibre Communications in the context of FTTH/B
Rong Zhao, Chair for Deployment & Operations Committee
FTTH Council Europe
Photonic Integration Conference 2017, Eindhoven, The Netherlands
• Introduction
• FTTH/B Global and European Market
• FTTH/B Architecture and Layered Model
• FTTH/B Solutions with Optical Fibre Communications
• Summary
Outline
FTTH Council Europe
Global FTTH Panorama – September 2016
Source: FTTH Global Alliance, Feb 2017
Number of FTTH/B subscribers worldwideFUTURE-PROOF1Gbps today, 10Gbps and more tomorrow using the same fibre network
ECO-FRIENDLYLowest power consumption per megabit per second
ENABLERDigital society – Smart Cities5G backhaulLegacy evolution
COMPETITIVEUnbeatable 1G service offerPremium customer experience, marketing & brandingLow OPEX (less maintenance cost)
European FTTH/B figures – September 2016
FTTH/B European Ranking – September 2016
FTTx Architecture
CO/POP Access Loop Customer Premise
Fibre To The Home (FTTH)
Existing
in-building
cablingFibre To The Building (FTTB)
Fibre To The Distribution Point (FTTDp)
Distribution Point
Existing copper
lines
(~100-200m)
Fibre To The Curb (FTTC) Existing copper
lines
(~500m)
Street Cabinet
FTTH - The Layered Model
Service Delivery(residential, public & business)
Active Network(network equipment, business & OSS)
Passive Infrastructure(trenches, ducts, fibre)
End-user
FTTH Topology - Passive Infrastructure
• Point to Multi-Point (P2MP) • Point to Point (P2P)
FTTH Technology - Active Infrastructure
EthernetOLT
(switch)Fibre
Point of Presence Access loop Customer Premise
PON OLTFibre
Optical Splitter
PON(P2MP)
Ethernet(P2P)
Fibre
IP
IP
FTTH Technology - Standardization
It started in the 90’s…
APON BPON GPON
EPON
It started in the 70’s…
FSAN – ITU
IEEE
The standard of the 90’s The standard of 2004
EFM (Ethernet in the First Mile)IEEE
IEEE 802.3ah
100BASE-BX (FE)
1000BASE-BX (GE)
10GBASE-BX (10GE)
The standard of 2005
XG-PON1
The standard of 2010
G.984G.983 G.987
NG-PON2
10G-EPONIEEE 802.3av
The standard of 2015
The FTTH Solution Based on Ethernet
IP/Ethernet
Broadcast HE
STB / TV
PC
Black/SIP
phone
Ethernet
SwitchONT
100BASE-BX10 :
100Mb/s
1,550 nm
1,310 nm
Video OLT
Maximum reach of 60km with Single Mode FibreMax. 120km with Dual Single Mode Fibre (1000BaseZX)
Two options for RF Video Overlay (1,550 nm)• Additional fibre from Video OLT and fed into coax• Signal inserted into each fibre (triplexers)
1,490 nm
1,310 nm
1000BASE-BX:
1Gb/s
or
The FTTH Solution Based on PON
IP/Ethernet
Broadcast HE
STB / TV
PC
Black/SIP
phone
Passive
Optical
SplitterWDM
Video
Coupler
Packet Optical Line
Termination
(P-OLT)
Optical
Network
Termination
(ONT)
…
GPON : up to 128 splits
EPON : up to 32 splits
G.PON/EPON
1,490 nm
1,310 nm
1550 nm
Passive Outside Plant
(e.g. 1:64 Split ratio, 20km reach)
Video Optical Line
Termination
(V-OLT)
2.5Gb/s
1.25Gb/s
GPON
1,25Gb/s
EPON
1,270 nm
XG.PON
1.577 nm 10Gb/s
2.5Gb/s
XGPON/10GEPON
1.25Gb/s
GEPON
The FTTH Solution Based on NG-PON2
NG-PON2 (ITU-T G.989) will support multiple 10G wavelengths
1260 1280 1290 1330 1480 1500
XG-PON Up GPON Up GPON Down
1530 1540 1575 -1581 1600 1625
NG-PON2 Up XG-PON Down NG-PON2 Down
1550
RF
• Optical Network Unit has tunable upstream laser as well as a tunable receiver
• 4 wavelengths (10G/2.5G per wavelength, total 40G/10G) in the downstream,
with an option of up to 8
• Up to 4 wavelengths in the upstream
• Possible symmetric configuration: 40G/40G or 10G/10G
• RF overlay at 1550nm is not affected by NG-PON2
PON Evolution
• Dedicated wavelength per user
• Typically 32 users
• Requires 32/64 colours
• No real standards
WDM filter
32 wavelength
channels
Each user receives
one channel
“Real” WDM PON
• 4-8 channels, each carrying a “normal” PON
• Users subscribed to one of the channels
• Requires extra filters, add complexity
• Wavelength per operator
Optical filters
at user
Splitter
4-8 wavelength
channels
NG-PON2 (TWDM PON)
Customer Premises Equipment (CPE)
Service Provider’s regard the CPE as demarcation point for their
services and termination of the FTTH line
• 2 major types of CPE approaches, depending on the service offering
• ONT (Optical Network Termination)
Terminates incoming fibre and provides Ethernet Interface(s) towards the
subscriber
• Residential Services Gateway
Combined ONT and Service termination
• Mostly Voice/Data combinations
• Routing
• Wireless LAN (Wi-Fi)
• Security and firewall
• Integrated VoIP and
• Quality of service capabilities
New FTTH Technologies - Seamless Transition
Splitter
Mobile Backhaul
Residential
(2Play and 3Play services)
Local Community
(Schools, Police Stations, …)
OLT NG-PON2
Tx, Rx
CEx
Coexistence
Element
1, 5
RF Video HE
OLT GPON
OLT XG-PON
2, 6
3, 7
4, 8
Business and Enterprise
(VPN L3, Access to the
internet)NG-PON2
ONU
GPON
ONU
W
M
NG-PON2
ONU
CPRI
OTDR
Copper Last Mile (MSAN
and DSLAM aggregation)
Common Public Radio
Interface (CPRI)
NG-PON2
ONU
GPON
ONU
CPRI
One platform for all services
Summary
• Fibre to the Home is the future-proof architecture in the Next Generation
Access (NGA) networks, as a key enabler for Gigabit Society.
• More than 280 Million subscribers have FTTH/B access over the world, which
will significantly increase in next 5-10 years.
• Different FTTH technologies are based on optical fibre communications.
• Both active and passive infrastructure of FTTH benefits from photonic
technologies.
FTTH/B Global Ranking – September 2016
Service Delivery And Interoperability
Standardisation enables wide adoption of FTTH
• Transmission, Components
• PON
• Ethernet
• Services, Provisioning, Interoperability
• Broadband Forum • Service delivery TR-101/TR-177
• Automatic CPE provisioning TR-69
• OLT ONT/ONU interoperability TR-247
• Metro Ethernet Forum
• Ethernet Services, Transport Services