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Pune, India, 13 – 15 December 2010 ITU-T Kaleidoscope 2010 Beyond the Internet? - Innovations for future networks and services Helmut Schink, Vice Chair.

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Presentation on theme: "Pune, India, 13 – 15 December 2010 ITU-T Kaleidoscope 2010 Beyond the Internet? - Innovations for future networks and services Helmut Schink, Vice Chair."— Presentation transcript:

1 Pune, India, 13 – 15 December 2010 ITU-T Kaleidoscope 2010 Beyond the Internet? - Innovations for future networks and services Helmut Schink, Vice Chair of SG 15 Trends in Transport Standards

2 2 Pune, India, 13 – 15 December 2010 ITU-T Structure Telecommunication Standardization Advisory Group Telecommunication Standardization Advisory Group WTSA World Telecommunication Standardization Assembly Study Group SG Workshops, Seminars, Symposia … IPR Ad hoc Working Party Questions: Develop Recommendations SG WP Q Q Q Q Q Q Focus Group

3 3 Pune, India, 13 – 15 December 2010 Study Group 15: Overview General area of study is on Optical transport networks and access network infrastructures SG 15 is the focal point in ITU T for the development of standards on optical and other transport network infrastructures, systems, equipment, optical fibres, and the corresponding control plane technologies to enable the evolution toward intelligent transport networks. This encompasses the development of related standards for the customer premises, access, metropolitan and long haul sections of communication networks.

4 4 Pune, India, 13 – 15 December 2010 Optical Access Metallic Access Home / Access Long Haul Terrestrial & Submarine / Regional Study Group 15: Overview

5 5 Lisbon, Portugal, February 2010 Projects and Opportunities SG 15 Major projects Lead SG on access network transport Lead SG on optical technology Lead SG on optical transport networks New opportunities Home networking Energy management Power saving Home and commercial building automation transceivers New customer premises cabling Interoperability testing (e.g. with FTTH Council Europe) Packet Transport Device Management Pune, India, 13 – 15 December 2010

6 6 SG 15 Management Chair: Yoichi Maeda, TTC Vice-Chairs, WP Chairs: Sadegh Abbasi Shahkooh, Iran Baker Baker, Syria Júlio Cesar Fonseca, Brasil Viktor Katok, Ukraine Francesco Montalti, WP 2, Telecom Italia Helmut Schink, Nokia Siemens Networks Tom Starr, WP 1, AT&T Steve Trowbridge, WP 3, Alcatel Lucent Shaohua Yu, China Counsellor: Greg Jones

7 Major front lines Outside plant techniques for easy, environmentally friendly installation Fibres: rubustness and low water peak Higher speed and lower power consumption in home network DSL copper access Fiber access Common OAM mechanisms for MPLS Beyond 100G long haul optics Syncronisation e.g. for backhaul 7 Pune, India, 13 – 15 December 2010

8 L. 83 Low impact minitrench installation techniques Installation of mini ducts structures inside a small dimension trench: width less than 5 cm and depth in the range cm (compared with 10x30 cm of the conventional one) Possibility of installing up to 3 linear arrays of 5 mini ducts 10/14 mm directly buried Use of low environmental impact trenching machines Pune, India, 13 – 15 December 2010

9 9 9 Solutions for installation of ducts and cables in an occupied infrastructures Outfitting of existing ducts (telcos, street lighting, power..) with10/12 mm mini ducts and use of completely dielectric minicables Separation of the telecommunication access points with the use of reduced dimensions manholes

10 10 Q7/15 Work in Progress L.distr Customer and distribution boxes and terminals L.drop Pre-terminated fibre drop cables & hardened connectors L.modc Environmental protection of optical devices and optical connectivity in outside plant conditions L.oxcon Outdoor optical cross connect cabinets Need of new Recommendation on field mountable connector technologies Optimization of space Unbundling? Pune, India, 13 – 15 December 2010

11 11 Pune, India, 13 – 15 December ITU-T documents give guidance on how to use the available spectrum

12 Third window 1500-nm Second window 1300-nm First window 850-nm Fiber Spectrum (nm) Attenuation (dB/km) Standard fiber AllWave ® Fiber US 1310nm DS 1490nm V 1550nm US 1270nm DS 1580n m GPON 10G-PON (D)WDM PON Water peak Rayleigh Scattering Absorption Pune, India, 13 – 15 December 2010

13 G. 657 Bending loss insensitive single-mode fibres G.657 A (G.652 compliant) A1 fibre 10 mm bending radius A2 fibre 7.5 mm bending radius G.657 B (not G.652 compliant) B2 fibre 7.5 mm bending radius B3 fibre 5 mm bending radius Following issues are being addressed as the future study points: - possibility of A3 fibre - splicing to G.652 fibre (level of compliance) - wavelength dependence of the transmission characteristics G.652 G.657 A1 G.657 A2 / B2 G.657 B3 Specified loss in dB for 1 turn at 1550 nm for radius: Bending Radius10 mm7.5 mm5 mm G. 657A1< G. 657A2 / B2<0.1<0.5- G. 657B3<0.03<0.08<0.15 Pune, India, 13 – 15 December 2010

14 Available Fiber Access Technologies A) Direct Fiber (Point to Point) Reach: ~20Km Future proof architecture Protocol independent Completely passive ODN Follows established telco wiring practice High CO/LO Fiber Management cost Un-economical for countrywide FTTH C) G-PON G.984 Reach: ~20Km Simplified Fiber management Low cost passive OSP (no PSU, MNS) Low power consumption Low OpEx Video Broadcast (DS) Bandwidth sharing in US and DS ONT must filter rogue channels Security (MBH port shared with FTTH subscriber?) Splitter attenuation limits tree size Cabinet / Basement D) WDM-PON Reach: ~20Km Passive ODN, symmetric BW Independent Lambda per subscriber Protocol Independent Reach amplification possible Reduced OSP costs, single fiber Security per line Easy BW upgrades Filters complicate OSP design B) AON (Active Optical Network) Reach: up to 40Km, (typ. ~7-15Km) Easy BW upgrades Flexible user & line rate deployment Simple deployment Shared Bandwidth Requires active equipment Increases OSP costs Increased OpEx 2.5G DS / 1.25G US 10/100/1000bT 1 – 10G Athermal DWDM Filter Passive Splitter Ethernet Switch Pune, India, 13 – 15 December 2010

15 Other/future Fiber Access Technologies F) 10G-PON G.987 Reach: ~60Km Passive OSP Migration from G-PON Split 1:64 / 1:128 Low power Redundancy options 10G DS / 2.5G US Lambda per subscriber Filter (Optional) Passive Splitter Passive Splitter E) UD-WDM Reach: up to 100Km Passive OSP Virtual Point to Point architecture Lambda per subscriber / service Colourless design, tunable ONT High split (up to 1:1000) Any packet transport format Low latency and delay Redundancy options G) CWDM+TDM-PON Reach: up to 60Km Strong service separation Reduced fiber count, CO consolidation possible CWDM filter in ODN Pune, India, 13 – 15 December 2010

16 Vectored VDSL2 enables up to 100 Mb/s Far-end crosstalk (FEXT) greatly reduces VDSL2 performance. Near-end crosstalk is not problem since VDSL2 uses different frequency band for upstream and downstream. DSLAM A vectored system sends pilot signals to learn the crosstalk coupling between all the lines in the cable Each transmitter precodes its signal to compensate for the FEXT from the other primary disturbing lines, thereby offsetting the effects of the crosstalk In April 2010 the ITU-T approved the G standard for VDSL2 vectoring VDSL2 bit-rate performance is nearly doubled by cancelling the FEXT FEXT Pune, India, 13 – 15 December 2010

17 Unified Home Networking Standards supports home networking rates up to 1 Gb/s -One standard for in-home coax, twisted pair, and power wires -Support of IPTV with Multicast and full QoS (quality of service) -Relay-node operating enable excellent coverage throughout the premises -Very low complexity home networking (G.9955) being developed to support Smart Grid energy management Pune, India, 13 – 15 December 2010

18 18 Pune, India, 13 – 15 December 2010 ITU-T WP 1/15 Passive Optical Network access Recommendations in Force G.983 BPON (622 / 155 Mbps) G.984 GPON (2.4 / 1.2 Gbps) G.985 point-to-point EPON (100 Mbps) G.986 point-to-point EPON (1 Gbps) G.987 XGPON (10 / 2.5 Gbps) – SR and PMD layers Work in progress for June 2010 G.987 XGPON (10 / 2.5 Gbps) – TC layer G.988 Generic OMCI (PON management) Further work G.987 XGPON2 (10 / 10 Gbps) ?

19 WP3/15 - Transport Network Structure Matrix Organization and key relationships 19 Pune, 15 December 2010 Q3/15 Coordination, Terminology Lead SG activities (OTNT SWP) Q9/15 Equipment, Performance Network Protection/Restoration Q10/15 OAM, Services Q11/15 Interfaces Structures & Mapping Q12/15 Architecture Q13/15 Timing & Synchronization Q14/15 Management & Control Q15/15 Test Equipment Circuit Transport Packet Transport OTN SDH PDH Ethernet over Transport (EOT) MPLS-TP IEEE 802 MEF IETF OIF TMF

20 Optical Transport Network (OTN) Evolution OTN Heirarchy recently extended at both ends to support 40/100G services per wavelength and groom at GbE (1000BASE-X) granularity New Flexible ODU (ODUflex) supports future Constant bit- rate (CBR) clients and arbitrarily sized packet flows

21 ODUflex Two flavors of ODUflex standardized Circuit ODUflex Supports any possible client bit rate as a service in circuit transport networks CBR clients use a bit-sync mapping into ODUflex (239/238xthe client rate) Packet ODUflex Creates variable size packet trunks (containing GFP-F mapped packet data) for transporting packet flows using L1 switching of a LO ODU In principle, can be of any size, but in a practical implementation it will be chosen to be multiples of the lowest tributary slot size in the network Similar to VCAT (virtual concatenation), but avoids differential delay problem by constraining the entire ODUflex to be carried over the same higher order ODUk, and provides one manageable transport entity per service (while also limiting the application to ODUflex that fits within one higher order ODUk) ODU k ODUflex ODUk Circuit ODUflex ODUflex Packet ODUflex

22 BROADBAND NETWORKS MPLS(-TP) LSP used as transport technology GMPLS used as LSP-TP control plane LSP bandwidths will exceed 0.5 Gb/s Transport Technology to suit any required granularity Ethernet LSP EVC/PW/IP >0.5 Gb/s traffic Ethernet LSP EVC/PW/IP LSP EVC/PW/IP BW growth fewer LSPs traffi c ULTRA-BROADBAND NETWORKS OTN ODU(flex) provides a greener UB LSP alternative GMPLS used as ODU control plane Operators can route packet flows in future through sub-Lambda-LSPs and Lambda-LSPs OTUk HO ODUk ODUflex ODU ODUflex EC/PW/IP EVC/PW/IP ODUk EC/PW/IP EVC/PW/IP 10/40/100 Gb/s traffic Transport Technology Evolution

23 23 Pune, India, 13 – 15 December 2010 Conclusions Standardisation happens at the forefront of technology: just before market introduction ITU can help leverage the knowledge of academic environment Good reserach alone is insufficient: dissemination of results via standards increases payback ITU-T SG 15 welcomes new ideas and new people and organisations to remain in leading position SG 15 is happy to organize brainstorming sessions to make experts familiar with new trends: proposals are welcome Formalities exist, but are limited. Secreteriat is there to help Next plenary meeting: Febr in Geneva

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