ITU-T Study Group 15 Optical and other Transport Networks

1. ITU-T Study Group 15Optical and other Transport Networks Peter Wery

2. Contents • Terms of reference • Management team • SG organization • Statistics • Highlights of achievements / projects / promotion • Workshops • Future work • Acknowledgements

3. Terms of Reference • Focal point in ITU-T for studies on optical and other transport networks, systems and equipment. This encompasses the development of transmission layer related standards foraccess, metropolitan and long haul sections of communication networks. • Lead SG for: • Access Network Transport (ANT) • Optical Technology

4. Management Team

5. Study Group Structure • WP 1/15 Network Access • Access network related stds. (PON and DSL) • WP 2/15 Network Signal Processing • Signal processing network equipment related stds. (speech enhancements; interactions) • WP 3/15OTN Structure • Opt. transport network structure related stds. (Architecture; network protection/restoration, interworking, synchronization; signal & frame structure, interfaces; network management;  SDH, ASON) • WP 4/15 OTN Technology • Opt. transport network physical & Layer 1 related stds. (Opt. fibres & cables, terrestrial and submarine systems, interfaces, components & subsystems) • WP 5/15 Projects and Promotion • ANT and Optical Technology related Lead SG projects; SG Promotion

6. Statistics (I) Meetings, Documentation, Participation • Study Group meetings 6 • Rapporteur Group meetings 92 • Work by correspondence (EDH) Continuous • White contributions 112 • Delayed contributions 1257 • Temporary Documents approx. 1800 • SG mtg. participants: average 304 - max 334 - min 276

7. Statistics (II) Work Program and Results • Recommendations approved: total 198 - new 77 - revised 121 • Questions assigned by WTSA-2000 19 • Questions during study period - revised 4 - deleted 2 – new 1 • Questions proposed for next period 18

8. Statistics (III) Support • Rapporteurs 17 • Editors Approx. 70 • ‘Other Roles’, incl. SG Representatives 13

9. Highlights of achievements (I) • Network Access • Gigabit capable passive optical access network (G-PON) operating up to 2.5 Gbit/s • Enhanced DSL multi-Mbit/s network access over ordinary telephone subscriber lines including ADSL2, ADSL2+, SHDSL, VDSL

10. Highlights of achievements (II)

11. Highlights of achievements (III) • Network Signal Processing • Dig. Circuit Multiplication Equipment (CME) • Digital network echo cancellers • CME optimized for IP-based networks • Interaction aspects of Signal Processing Network Equipment (SPNE) • Equipment interconnecting GSTN and IP networks

12. Highlights of achievements (IV) • OTN structure • Efficient carriage ofEthernet in SDH and OTN networks results in simple, cost effective and scalable (10 Mbit/s to 1 Gbit/s) solutions • Generic Frame Procedures (GFP) for encapsulation of various packet data types • Scalable transport ‘pipes’ through Virtual Concatenation and Link Capacity Adjustment Scheme (LCAS) • Control plane to enable intelligent transport networks

13. Highlights of achievements (V)

14. Highlights of achievements (VI) • OTN Technology • New fibre specification widens operating wavelength band to 1470-1625 nm • New interface specification quadruples capacity to 40 Gbit/s • CWDM allows carriers to cost-optimise use of fibre optics in metropolitan applications • Forward error correction, high bit rate DWDM submarine systems

15. Highlights of achievements (VII)

16. Highlights of projects/promotion • Projects and Promotion • Continuous update of - ‘Access Network Transport (ANT) Standardization Overview’ and - ‘ANT Work Plan’ - ‘OTNT Standardization Work Plan’ • Promotion of SG 15 activities through - ITU Press Releases (13) - ITU-T Brochures (flyers) (11) - Inputs to TSAG on EDH, AAP and SG restructuring

17. Workshops (I) • Workshop ‘IP/Optical’ • Organized jointly by SG13 and SG15 • 9-11 July 2002, Chitose, Japan • 396 participants - 13 developed countries - 3 developing countries

18. Workshops (II) • Workshop ‘All Star Network Access’ • Organized by TSB and SG15 - in cooperation with representatives from ITU-R, Committee T1E1.4, ETSI TM6, DSL Forum, FSAN, IEEE, MEF, OIF • 2-4 June 2004, Geneva • 154 participants - 20 developed countries - 6 developing countries

19. Future Work (I) In general, emphasis will be on Access Network and OTN related standards to provide necessary infrastructure for evolving NGN • Network Access • Optical access: Higher bit rates; increased reach; improved system resilience, management and control • DSL: Reflect deployment experience; enhanced system mgmt.; new service requirements; increased reach and bit rates (100 Mbit/s); single ended line testing • Home Networking over existing customer premises telephone wiring

20. Future Work (II) • Network Signal Processing • Enhancements to ATM and IP circuit multiplication equipment, echo control & voice enhancements devices • IP to IPgateway equipment • Mechanisms for dynamic coordination of SPNE for optimum end-to-end voice quality

21. Future Work (III) • OTN Structure • Improved network protection & restoration • Enhancements to Ethernet and other packet based data services over transport networks • New architectures to deliver multipoint services • Synchronization issues of packet based networks • Evolution of control plane technologies for efficient connection configuration and fast optical network restoration

22. Future Work (IV) • OTN Technology • New fibre characteristics (other wavelength regions) • More optical channels per fibre • New transmission technologies (Soliton) • High capacity DWDM & > 40 Gbit/s trans. syst. • Free space optical line system interfaces • Raman optical amplifiers • Polarization Mode Dispersion compensators

23. Future Work (V) • Projects & Promotion • Continued coordination across ITU-T/R SGs and relevant SDOs, Forums, Consortia in Lead SG areas • Harmonization of stds. development related to SDH, OTN, ASON, Ethernet over transport • Updates to - ANT Stds. Overview and Work Plan - OTNT Standardization Work Plan • Continued promotional activities (Press Releases, e-Flash, Brochures, Workshops, etc.)

24. Acknowledgements • SG 15’s significant achievements would not have been obtained without the dedicated effort of many individuals working as a coherent team. Thank you all • The SG Vice-Chairmen and WP Chairmen • The Rapporteurs and Editors • Those with ‘Other Roles’ (SG Representatives) • The TSB counsellor and his Assistant (Paolo Rosa, Isabelle Garde) • Other TSB staff, too numerous to name • The SG 15 members for their participation and contributions

25. Peter H.K. WeryChairman ITU-T SG 15 Peter H.K. Wery has been involved with ITU-related activities since 1969, when he represented SEL (Germany) at joint CCIR/CCITT Study Group CMTT (Sound Program and TV signal transmission). Since 1976 Peter has participated pro-actively for Nortel Networks (Canada) in a variety of ITU-T Study Groups and roles, including Rapporteur, Liaison Rapporteur, Working Party chairman and SG Vice-chairman. Peter has successfully chaired Study Group 15 (Optical and other Transport Networks) since 1996. Under his leadership Study Group grew into the largest Study Group of the ITU-T, developing over 260 Recommendation texts, predominantly in its core competency areas of Network Access and SDH & Optical Transport Networks and Technology.