Edoardo cottino


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FTTH Conference 2013 Standardization

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Edoardo cottino

  1. 1. FTTH Conference 2013 WorkshopStandardization & Economics for FTTH/FITH NetworksInstallation/Migration strategies for FTTH/FITH Networks Edoardo Cottino ITU-T SG15 Q16 Rapporteur London, 19th february 2013
  2. 2. ITU-T SG 15FTTH/FITH Standardization activityThe standardization of products and installation techniquesrelevant for the deployment of FTTH has been addressed sincemore than ten years by ITU-T under a global umbrella:products, planning, deployment and maintenanceThis includes the development and updating of standards forthe construction of the physical layer of the access networkand the customer premisesThe activity related to optical infrastructures and products isunder the leadership of Study Group 15 WP2 “Opticalaccess/transport network technologies and physicalinfrastructures”Care is taken in the harmonization of standards withdifferent Institutions, in particular with IEC TC86 and its WGs
  3. 3. Q.16 “Optical physical infrastructure and cables” This Question includes the study of new cable constructions for different applications: underground, in ducts, aerial and customer premises.In force Recommendations on cable construction L.10 Optical fibre cables for duct and tunnel application (12/2002) L.26 Optical fibre cables for aerial application (12/2002) L.43 Optical fibre cables for buried application (12/2002) L.58 Optical fibre cables: Special needs for access network (03/2004) L.59 Optical fibre cables for indoor applications (01/2008) L.60 Construction of optical/metallic hybrid cables (09/2004) L.67 Small count optical fibre cables for indoor applications (10/2006) L.78 Optical fibre cable construction for sewer duct applications (05/2008) L.79 Optical fibre cable elements for microduct blowing installation (07/2008) application L.87 Optical fibre cable constructions for drop application (07/2010)
  4. 4. Q.16 “Optical physical infrastructure and cables”This Question address the investigation of new cost effective solution for the construction of the infrastructures and for cable laying.In force Recommendations on installation techniques L.35 Installation of optical fibre cables in the access network (10/1998) L.38 Use of trenchless techniques for the construction of underground infrastructures for telecommunication cable installation (09/1999) L.39 Investigation of the soil before using trenchless techniques (05/2000) L.48 Mini-trench installation technique (03/2003) L.49 Micro-trench installation technique (03/2003) L.57 Air-assisted installation of optical fibre cables (05/2003) L.61 Optical fibre cable installation by floating technique (09/2004) L.73 Methods for inspecting and repairing underground plastic ducts (04/2008) L.77 Installation of cables in sewer ducts (05/2008) L.82 Optical Cabling shared with multiple operator in buildings (07/2010) L.83 Low impact trenching technique for FTTx networks (07/2010) L.84 Fast Mapping of Underground Network (07/2010) L.88 Management of poles carrying overhead telecommunication lines (07/2010)
  5. 5. The next study period 2013-2016
  6. 6. The updated Q.16 “Outside plant and related indoor installation”Study items will be considered include, but are not limited, to: The suitable optical access network for urban and rural areas, taking into account the optical fibre demand and the expanse of area The key considerations for indoor and outdoor network design taking into account planning and growth The strategies for constructing new infrastructure and expansion of existing infrastructure, taking into account integrity of installation, maintenance and growth issues The mechanical and environmental characteristics of the optical infrastructure for the FTTH networks The suitable methods to enter the user premises and for installing optical fibre cables and other network elements in common parts of the buildings The features needed for BDP (Building Distribution Point) The techniques to construct and manage the fibre network inside the apartment The techniques for managing the building network The regulatory issues to be considered for fibre deployment
  7. 7. Outside Plant infrastructures challengesIt represents the prevalent cost in the customer connection. Withtraditional techniques is in the range between 60% (in urban areas) and90% (in rural areas) of the total plant cost.The trend of miniaturization of the optical cable structures as well asthe availability of low bend fibres allows the reduction of the ductsdimensions and, consequently, of the dimensions of the road cuttingTo pave the way to FTTH, Telcos are looking for technologies allowing: To re-use as far as possible the existing infrastructures (even if partially occupied by other cables) To minimize the environmental impact by means of reduced dimension diggig techniques (or no dig at all!) To reduce the skill of manpower ITU-T SG15 is going to work on the standardization of all the available technologies to enable FTTH development
  8. 8. Optical cables miniaturization trend The reduction of diameter and weight of the microcables allow the installation in very small ducts with air blowing. The same products can be installed in overhead plants or on building facades.Traditional cable Microcable 96 o.f.  144 o.f. Diameter 15 mm  Diameter 8 mm Weight 200 Kg/Km  Weight 50 Kg/Km Bending Radius 210 mm  Bending Radius 160 mm Winch installation  Air blowing installation
  9. 9. Infrastructure miniaturization trendIn the same way also the dimensions of ducts can be reduced.In this new scenario large dimension road cuttings areunnecessary, as sections of several cm or some tens cm aresufficient. TRADITIONAL MINIATURIZED Diameter 10/14 mm (inner/outer) Outer Diameter 40 or 50 mm
  10. 10. Installation of ducts and cables in existing infrastructuresOutfitting of existing ducts (telcos, street lighting, power..) with microducts anduse of completely dielectric microcablesSeparation of the telecommunication access points with the use of reduceddimensions manholes
  11. 11. Fast solution for mapping underground networksIt should detect univocally underground services and display in real timethe 3D results about buried utilitiesIt should be user friendly, with a man-machine interface that helps alsonot skilled people to understand the resultsIt should geo-reference traces and they should be imported in a GISsystem or in a CAD file
  12. 12. Low impact trenching techniquesInstallation of microducts inside a small dimension trench: widthless than 5 cm and depth in the range 20-40 cmUse of low environmental impact trenching machinesUse of new material to empty the dig to avoid road restorationReduction of “environmental costs” and “social costs”All the activities permit to open and close the working site inthe same day Trench saw combined with suction machine Innovative material before and after hardening completed
  13. 13. ”Light” No-DigIt is a guided drilling technique with small machines (also foruse in manholes) for the laying of a  40 mm single duct, equippedwith 4 miniducts and with anti rodent protection Advantages Drawbacks Ease to obtain permissions Need of a georadar survey Zero impact on environment and traffic Dependance on the soil type No need of expensive road restoration
  14. 14. Short Term solution: FTTCab “Fiber to the Cabinet”“Market-driven” solution moreconservative than the FTTDpoint (low cost“upfront”) and reduced risk of theinvestimentsImmediate cabling in primary opticalnetwork (up to the distribution cabinet)Opex have few changes about thecopper network, because failures areexpecially in the secondary networkVery suitable for areas with middleurbanization from technical point of viewOnly some Clients, asking speed internetconnections, are connected through FiberTo The Home linkNeeded power supply to the cabinet theelectricNot always suitable to meet the targetof 100 Mb/sFTTCab could have some limitations,both plant and regulatory expertise, indenser urban areas
  15. 15. Short Term solution: : FTTDp “Fiber to the Distribution Point”“Market-driven" solution lessconservative than FTTCab (high cost"upfront")Immediate cabling in primary andsecondary optical network (up to thedistribution cabinet)The FTTDp solution uses the existingcopper of building in unbundlingRespect the objective of 100 Mb/sPower supply from the customerhome (or stairway lighting, etc.).Costs and risks higher than theFTTCab , because of more time neededfor the implementationNo foreseeable plant or regulatorylimitations in dense urban areasStandard configuration not yetavailable and proprietary solutions areexisting
  16. 16. Existing building infrastructures challengesThe most critical issues of the FTTH deployment are related to thecabling of existing buildings, especially in metropolitan areas, dueto:• Limited availability of TLC infrastructures• Trouble in obtaining permissions for installing “at sight” solutions ITU-T SG15 is working on the standardization of all the new products accessories test methods and installation techniques optimized for the “existing buildings scenario”
  17. 17. Real scenarious in buildings….
  18. 18. Optical cabling in buildings: different approaches Shared optical building cabling for all operators (when multiple "optical access networks" are deployed) Example of cabling solutions in buildings: both theriser cable or the drop cable could contain one or Individual building cabling for each operator more fibres for each customer depending on the chosen architecture
  19. 19. Telecom Operators’ Constraints& Optical Components Key Features
  20. 20. ConclusionsThe success of the FTTH challenge relies on the possibility for all thePlayers to build up a the state of the art infrastructure with, most reliable,cost effective and homogeneous technologies. For this purposeSTANDARDS are needed.In the last ten years of activity, ITU-T produced about 40Recommendations related to FTTH physical layer; in the next studyperiod (2013 – 2016) will be address fibers reliability items, cost effectiveinstallation techniques, cables and materials for FITH.The set of Recommendations, Handbooks, Technical Reportsproduced, will speed up the FTTH deployment, allowing to the FTTHPlayers to make the correct choices for the implementation of a future-proof optical fibre access network.Relationships with other Standardization Bodies are mandatory inorder to harmonize standards and avoid duplication of efforts.
  21. 21. Thank you!e.cottino@sirti.it