FTTH Conference 2011 Workshop FTTH System Standards Frank Effenberger ITU
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FTTH Conference 2011 Workshop FTTH System Standards Frank Effenberger ITU



FTTH Conference 2011 Workshop FTTH System Standards Frank Effenberger ITU

FTTH Conference 2011 Workshop FTTH System Standards Frank Effenberger ITU



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FTTH Conference 2011 Workshop FTTH System Standards Frank Effenberger ITU FTTH Conference 2011 Workshop FTTH System Standards Frank Effenberger ITU Presentation Transcript

  • FTTH Conference 2011FTTH System Standards Frank Effenberger
  • Trends and challenges in Access systems Active electronics and optics are a distinct and important cost element in true broadband access systems Important factors Mass production is essential to obtain economies of scale Consistent standardization allows interoperability Technical improvement of the business case Ensuring Full service support is critical to get every euro of value from the entire access markets Reducing capex by developing a single common market at all levels of the equipment supply chain Reducing opex by streamlining installation and troubleshooting To pave the way to develop FTTH, and re-develop FTTH in the future, Telcos are looking for technologies allowing: Cost effective day-one deployment Easy evolution to higher and higher bandwidth 2
  • Working Party 1 of SG15 Transport Aspects of Access and Home NetworkingITU-T SG15 is working on the standardization of all the availablesystems to streamline FTTH . Possible solutions include Passiveoptical networks, point to point systems as well as metallic-basedin-building and home network interconnect. Q1/15: Coordination of Access Network Transport Standards Upper-layer aspects of home networks and their association with access IP for home networks Detection of home network topology G.9970 – G.9971 Q2/15: Optical Systems for Fiber Access Networks Passive optical networks: GPON/ XG-PON, EPON, BPON, WDM PON Point to point optical access G.981-987 Q4/15: Transceivers for twisted-pair access and home networking HDSL, SHDSL, ADSL, VDSL2, Vectoring for DSL (G.991- G.999) Management of DSL transceivers, line testing, line bonding G.hn, G.hnem in-home networking via phone, coax, and power wires (G.9954, G.9955, G.9960, G.9961) 3
  • “Coordination of Access Network Transport standards ”The responsibility under this Question includes the following areas ... * Maintain and update the ANT Standards Overview & Work Plantogether with other study groups and in conjunction with ITU-R andother relevant organizations* Maintain coordination across the relevant ITU-T study groups toensure all available expertise is utilized to best advantage and in theestablishment of priorities•Contribute to ITU efforts to support developing countries by makingavailable pertinent information on access network standards.•Extension of the ANT Work Plan to activities related to HomeNetworking and energy savings in the Access Network. and the following major Recommendations: Access Network Transport Standards Work Plan Access Network Transport Standards Overview G.9970: Generic home network transport architecture G.9971: Requirements of transport functions in IP home networks 4
  • Generic home network models Application LayerTransport LayerManagement Layer 5
  • “Optical systems for fibre access networks”The responsibility under this Question includes the followingareas for optical access networks •System requirements •Physical medium dependent specifications •Transmission convergence specification •ONU management specificationsand the following major Recommendations on OAN’s: G.982 TDM PON system G.983 Broadband PON series G.984 Gigabit PON series G.985 100 Mb/s P2P system G.986 1Gb/s P2P system G.987 Ten Gigabit PON series G.988 Generic ONU Mngt. and control Interface (OMCI) 6
  • What’s going on: G-PONThe question has spent last 8 years defining, refining, andextending the G-PON systemDefine: G.984.1 Gigabit PON system requirements G.984.2 Gigabit PON PMD specifications G.984.3 Gigabit PON TC specifications G.984.4 OMCIRefine: G.984.1 Rev Greatly expand descriptions of service layers G.984.2 Amd Capture industry best practices for PMDs G.984.3 Rev Simplify TC layer to reflect real usage G.984.4 Revs Constant improvement of the OMCIExtend: G.984.5 Gigabit PON PMD compatibility and coexistence G.984.6 Gigabit PON Reach extensionRelated standard: IEEE P802.3ah GE-PON A functionally similar system, used mainly in the Far East 7
  • G-PON system concept and key parameters ONU1 12 3 2 1 2 1 ONU2 OLT Time 12 3 21 3 Time SplitterSpeed 2.4 / 1.2G ‘LAN-like’ DBA ONU3Budget B+ (28dB) / C+ (32dB)Distance 20km (options to 60km)Split 64Options for protection, security, power saving 8
  • Gb/s PON Standard Organizations FSAN ITU-T Q2/15 IEEE P802.3ah Leading GPON G-PON standards EPON standards Architecture InteroperabilityBroadband-Forum ATIS NTT KTGPON System req. Filling the gaps System spec System spec TR-156, 167 GPON Interop TR-254 China CCSA System spec 9
  • What’s going on: P2PThe question has supported several projects to define practicalsingle fiber point to point transceiver solutionsDefine: G.985 100Mb/s single fiber optical accessRelated standard: IEEE P802.3ah 100[0]Base-BX These are the same, but for some parametric differencesCoordinate: Numerous communications with the IEEE to discuss the extension of 1000Base-BX via G.986Scale: G.986 1Gb/s single fiber optical access Silent start – P2P ONUs won’t jam PONs OMCI reuse for P2P 10
  • P2P Architecture and Dense OLT OLT Port 48 Module 1000Base-BX 1490nm down Lambda 1310nm up Speed GE、FE Budget 15dB Module Rx/Tx interface Rx/Tx ONUs 11
  • What’s going on: XG-PONThe question has spent last 3 years defining the new XG-PONsystemDefine: G.987 Gigabit PON definitions and acronyms G.987.1 Gigabit PON system requirements G.987.2 Gigabit PON PMD specifications G.987.3 Gigabit PON TC specificationsRefine: G.988 Generic OMCI Now covering G-PON, XG-PON, P2P GbE, and 10GE-PONExtend: G.987.4 Ten Gigabit PON Reach extension (in progress)Related standard: IEEE P802.3av 10GE-PON A similar system, sharing many sub-systems with XG-PON TC-layer uses a different basis 12
  • Worlds first XG-PON Trial System - XG-PON OLT 48VD C Field Trial Site: Taunton, MA Network Interface CardPower Interface Card (x2) XGPON PON card Control Card(single PON port) Trial Home XG-PON ONT CO Loop length: 1.73km GigE Interface (x4) 10GigE Interface (x1)XG-PON PON Interface 13
  • 10Gb/s (NG-PON1) Standard Organizations FSAN ITU-T Q2/15 IEEE P802.3av Leading XGPON XG-PON standards 10GEPON standardsOpen consideration Architecture Specifications ITU-T Q2/15 Liaisons Workshop China CCSA Broadband-Forum ATISXGPON System req. Filling the gaps System spec(slight mods to TR’s) BB-Forum TR-200 NTT System spec IEEE P1904.1 System Integration for EPON MSO System spec 14
  • What’s next: ?In the coming years, Q2 will begin the consideration of thenext system after XG-PON class solutionsThese systems could include: WDM-PON Injection (wavelength control at the PHY) Tunablility Tunable (wavelength control at the TC) DSP FDM-PON Power CDMA-PON NG-PON2 efficiency Coherent-PON Port density Stacked XG-PONs Based on tunable ONUs transceivers Stability Based on intelligent tunable OLTs Polarization Even more possibilities! Generally speaking, system capacity to be increased 40Gb/s total rate, 1Gb/s per user 40km natural reach without extenders Wider split ratios (up to 1000 ONUs) 15
  • NG-PON2 Standard Organizations FSAN ITU-T Q2/15 IEEE 802.3? Studying NGPON2 WDM-PON systems Who knows? Open consideration Architectures NGPON2 Applications (when ready) ITU-T Q6/15 IEEE 1905.1 Wavelength seeded Who knows? Metro Applications 16
  • “Transceivers for customer access and in-premises networking systems on metallic conductors”The responsibility under this Question includes the followingareas for Transceivers for twisted-pair access Test and management of DSL Home networkingand the following major Recommendations relevant to FTTH: G.993.2 VDSL2 Very High speed DSL G.993.5 VDSL2 Self FEXT cancellation (Vectoring) G.996 Test procedures for DSL G.997 PHY Management for DSL G.998 Pair bonding G.9960 Unified high speed HN: Architecture and PHY G.9961 Unified high speed HN: Data link layer 17
  • Vectoring enables up to 100 Mb/s Far-end crosstalk (FEXT) greatly reduces VDSL2 performance.Near-end crosstalk is not problem since VDSL2 uses differentfrequency band for upstream and downstream. DSLAM FEXT•A vectored system sends “pilot” signals to learn the crosstalkcoupling between all the lines in the cable•Each transmitter “precodes” its signal to compensate for theFEXT from the other primary disturbing lines, thereby offsettingthe effects of the crosstalk •In April 2010 the ITU-T approved G.993.5 for vectoring •VDSL2 bit-rate performance is nearly doubled•VDSL2 plays an important role in FTTBuilding deployments •Leverages the existing Cat3 inside wiring 18
  • Unified Home Networking StandardsG.hn supports home networking up to 1 Gb/sOne standard for all common media types In-home coax, twisted pair, and power wiresSupport of IPTV with Multicast and full QoS(quality of service)Relay-node operating enable excellent coveragethroughout the premisesVery low complexity home networking (G.9955)being developed to support Smart Grid energymanagement 19
  • ConclusionsThere is a wide range of FTTH relatedsystem standards Splitter-based PONs Fiber-based P2P Copper-based in-home/building linksThese are being extended and scaled tofollow the rising bandwidth trend Business value is always the key object Reduction of capex and opex over the lifetime 20