ITU-T Study Group 15 Introduction
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The document outlines the achievements and future goals of ITU-T Study Group 15 (SG15), which focuses on developing standards for transport, access, home networking, and smart grid infrastructures from 2013-2016. Key completed works include advancements in broadband access technologies, optical transport networks, and synchronization protocols, as well as plans for next-generation high-speed converged fiber access and support for 5G networks. SG15 is noted for its global industry participation and productivity in standard development for various telecommunications technologies.
ITU-T Study Group 15 Introduction
- 1. Networks, Technologies and Infrastructures for Transport, Access and Home ITU-T STUDY GROUP 15 Dr. Stephen J. Trowbridge Summary of Results Study Period 2013-2016
- 2. Terms of Reference SG15 is responsible for the development of standards on: home network and power utility network infrastructures optical transport network equipment access network systems optical fibres and cables and their related installation maintenance management test instrumentation and measurement techniques control plane technologies to enable the evolution toward intelligent transport networks, including the support of smart-grid applications.
- 3. Access Network Transport Optical Technology Optical Transport Networks (redundant) Smart Grid Home Networking (new for 2017-2020 period) Lead Study Group Activities
- 4. Achievements
- 5. COMPLETED WORK WP1 – Broadband Access Achievements G.fast up to 1 Gbps access Collaboration with BBF G.hn home networking up to 1 Gbps G.9977 mitigation of interference between DSL and G.hn Narrowband PLC for smart grid 40G fiber access (NG-PON2 - G.989) G.9801 Ethernet-based PON (EPON) G.9802 Generic multi-wavelength PON (G.multi) VDSL2 vectoring for 100 Mbps; 300 Mbps VDSL2 with 35b profile Symmerical 10G PON (G.9807)
- 6. WP2 – Optical Technologies Achievements COMPLETED WORK Submarine cable systems including coherent 100 Gbit/s applications (G.97x series) Disaster management for survivable networks (L.392) Single-mode fibre (G.652, G.654, G.657) Short-reach (client) 40G and 100G OTN interfaces Multichannel bi-directional DWDM applications (G.metro) Multi-vendor interoperable coherent modulation for 100G (G.698.2) Optical components: optical amplifier, optical splitters and multi-degree-ROADM
- 7. WP3 – Optical Transport Networks Achievements COMPLETED WORK OTN hierarchy and Interfaces (G.709) for beyond 100G bit/s signals (n x 100 Gbit/s) including mobile fronthaul/backhaul, etc. Major update of OTN Architecture (G.872) Equipment & management for OTN, Ethernet and MPLS-TP Network synchronization and time distribution (G.82xx series) Core information model for Software-Defined Networking (SDN) architectures (G.7711/Y.1702) Architecture of transport networks (G.800) and transport SDN (G.7701) Network resilience for OTN, Ethernet and MPLS-TP
- 8. Future Work
- 9. WP1 – Future Work Next generation of converged fiber access going to higher speeds Next generation G.fast >2 Gbps G.fast dynamic time assignment (DTA) – downstream/upstream bit-rates responsive to customer traffic G.hn home networking over indoor phone, power, and coax wires >2 Gbps Visible Light Communication for home networking Powerline communication (PLC) Continue collaboration with
- 10. WP2 – Future Work Easy and environmentally friendly outside plants Disaster Management issues 100G and future higher-rate coherent multi-vendor interoperable interfaces Short-reach (OTN client) 200G and 400G interfaces reusing components developed for Ethernet applications Multichannel bi-directional DWDM applications targeted at lower cost optical solutions for applications including mobile fronthaul and backhaul 200G 400G
- 11. WP3 – Future Work Transport and synchronization supporting 5G mobile fronthaul and backhaul Synchronization of packet networks and future OTN networks, e.g., beyond 100G Architecture and other Transport SDN Aspects Network survivability (protection and restoration) New “B100G” OTN interfaces, including the use of coherent G.698.2 interfaces under development Equipment & management specifications for OTN, Ethernet and MPLS-TP Management aspects of control and transport planes Core Information model enhancement for management of synchronization and optical media
- 12. Conclusions Leading development of The LARGEST and MOST PRODUCTIVE group in ITU-T with broad, global industry participation Highlights include: Home Networking Smart Grid Transport Technologies
- 14. International Telecommunication Union 14 ITU-T Study Group 15 Transport, Access and Home Terms of Reference Responsible for the development of standards on optical transport network, access network, home network and power utility network infrastructures, systems, equipment, optical fibres and cables, and their related installation, maintenance, management, test, instrumentation and measurement techniques, and control plane technologies to enable the evolution toward intelligent transport networks, including the support of smart-grid applications.
- 15. International Telecommunication Union 15 ITU-T Study Group 15 Transport, Access and Home Lead Study Group Activities Access Network Transport Optical Technology Optical Transport Networks (redundant) Smart Grid Home Networking (new for 2017-2020 period)
- 16. International Telecommunication Union 16 ITU-T Study Group 15 Transport, Access and Home Highlights of achievements (WP1) • XG-PON Symmetrical 10 Gbps fiber access (G.9807) • NG-PON2 40 Gbps fiber access (G.989) • G.9801 Ethernet-based PON (EPON) • G.9802 Generic multi-wavelength PON (G.multi) • VDSL2 vectoring cancels crosstalk to raise bit-rates up to 100 Mbps; VDSL2 bit-rates rise to 300 Mbps with 35b profile • G.fast up to 1 Gbps access over phone and coax wires from FTTdp node • Collaboration with BBF on YANG management models for DSL and G.fast equipment • G.hn home networking over indoor cables (phone, power, coax, and fiber) up to 1 Gbps, including MIMO for enhanced performance • G.9977 mitigation of interference between DSL and G.hn – ITU facilitated cooperation between different industry sectors • Powerline communication(PLC) – narrowband for a smart grid, G3, PRIME, G.hnem
- 17. International Telecommunication Union 17 ITU-T Study Group 15 Transport, Access and Home Highlights of achievements (WP2) • Revision of single-mode fibre Recommendations (G.652, G.654, G.657) • Short-reach (client) 40G and 100G OTN interfaces reusing components developed for Ethernet applications • Progress on Multichannel bi-directional DWDM applications with port agnostic single-channel optical interfaces (G.metro) • Progress on multi-vendor interoperable coherent modulation formats for 100G applications (G.698.2) • Optical components and subsystems such as optical amplifier devices, optical splitters and multi-degree- ROADM • Optical fibre submarine cable systems including coherent 100 Gbit/s applications (G.97x series) • Disaster management for improving network resilience and recovery with movable and deployable ICT resource units (L.392)
- 18. International Telecommunication Union 18 ITU-T Study Group 15 Transport, Access and Home Highlights of achievements (WP3) OTN hierarchy and Interfaces (G.709) for beyond 100G bit/s signals (n x 100 Gbit/s), including client mappings supporting OTN application including telco, mobile fronthaul/backhaul, data center interconnect, and video distribution Major update of OTN Architecture (G.872) Continuous updates to equipment & management specifications for OTN, Ethernet and MPLS-TP Architecture of transport networks and architecture of transport SDN Network synchronization and time distribution (G.82xx series), including new telecom grandmaster clocks and an enhanced primary reference time clock Core information model for transport resources for transition to Software-Defined Networking (SDN) architectures (G.7711/Y.1702) Architecture of transport networks (G.800) and architecture of transport SDN (G.7701) Network restoration and protection for OTN, Ethernet and MPLS- TP
- 19. International Telecommunication Union 19 ITU-T Study Group 15 Transport, Access and Home Future Work (I) Next generation of converged fiber access going to higher speeds Next generation G.fast >2 Gbps using telephone and coax wires G.fast dynamic time assignment (DTA) – downstream/upstream bit-rates responsive to customer traffic Continue collaboration with BBF on YANG management models for DSL equipment, expanding to include fiber access systems G.hn home networking over indoor phone, power, and coax wires >2 Gbps Visible Light Communication for home networking Continue evolution of Powerline communication (PLC)
- 20. International Telecommunication Union 20 ITU-T Study Group 15 Transport, Access and Home Future Work (II) Easy and environmentally friendly installation technology for outside plant Progress on Disaster Management issues Continued work on 100G and future higher-rate coherent multi-vendor interoperable interface specifications Short-reach (OTN client) 200G and 400G interfaces reusing components developed for Ethernet applications Continue work on Multichannel bi-directional DWDM applications with port agnostic single- channel optical interfaces targeted at lower cost optical solutions for applications including mobile fronthaul and backhaul
- 21. International Telecommunication Union 21 ITU-T Study Group 15 Transport, Access and Home Future Work (III) Transport and synchronization supporting 5G mobile fronthaul and backhaul Architecture and other Transport SDN Aspects Synchronization of packet networks and future OTN networks, e.g., beyond 100G New “Beyond 100G” OTN interfaces, including frame formats for reuse of Ethernet 200G and 400G components for OTN client interfaces and use of coherent G.698.2 interfaces under development Network survivability(protection and restoration) Continuous updates to equipment & management specifications for OTN, Ethernet and MPLS-TP Management aspects of control and transport planes Core Information model enhancement for management of synchronization and optical media
- 22. International Telecommunication Union 22 ITU-T Study Group 15 Transport, Access and Home Conclusion Leading development of optical transport network, access network, home networking, and smart grid standards in ITU. The largest study and most productive group in ITU-T, with broad, global industry participation Highlights include home networking, smart grid, high speed access, optical transport network infrastructure and transport technologies.
- 23. International Telecommunication Union 23 ITU-T Study Group 15 Transport, Access and Home Management team Structure Statistics
- 24. International Telecommunication Union 24 ITU-T Study Group 15 Transport, Access and Home Management Team – 2/2 WP1/15 Chairman Tom STARR (USA) WP1/15 Vice-Chairman Hubert MARIOTTE (FRANCE) WP2/15 Chairman Francesco MONTALTI (Italy) WP2/15 Vice-Chairman Viktor KATOK (Ukraine) WP3/15 Chairman Ghani ABBAS (UK) WP3/15 Vice-Chairman Malcolm BETTS (China)
- 25. International Telecommunication Union 25 ITU-T Study Group 15 Transport, Access and Home Meetings Meetings of 2013-2016 Study Period – SG15 meetings Geneva, 1-12 July 2013 Geneva, 24 March – 4 April 2014 Geneva, 24 November – 5 December 2014 Geneva, 22 June – 3 July 2015 Geneva, 15 – 26 February 2016 Geneva, 19-30 September 2016 – WP1/15 meetings Geneva, 1 February 2013 Geneva, 6 December 2013 – 102 face-to-face Rapporteur Group meetings authorized First SG15 meeting of 2017-2020 study period – Geneva, 19 – 30 June 2017 (provisional)
- 26. International Telecommunication Union 26 ITU-T Study Group 15 Transport, Access and Home Study Group Structure WP 1: Transport aspects of access, home and smart grid networks – Access network standards. (PON and xDSL) – Home networking – Smart Grid WP 2: Optical technologies and physical infrastructures – Optical fibres and cables – Optical components – Optical interfaces WP 3: Transport network characteristics – Transport networks based on OTN, Ethernet, MPLS-TP with applications including telco, mobile fronthaul/backhaul, data center interconnect – Timing and synchronization – Management and control, including application of SDN to transport
- 27. International Telecommunication Union 27 ITU-T Study Group 15 Transport, Access and Home Questions under SG15 Q1:Coordination of access and Home Network Transport standards Q2: Optical systems for fibre access networks Q3: General characteristics of transport networks Q4: Broadband access over metallic conductors Q5: Characteristics and test methods of optical fibres and cables Q6: Characteristics of optical systems for terrestrial transport networks Q7: Characteristics of optical components and subsystems Q8: Characteristics of optical fibre submarine cable systems Q9: Transport network protection/restoration Q10: Interfaces, Interworking, OAM and Equipment specifications for Packet based Transport Networks Q11: Signal structures, interfaces, equipment functions, and interworking for transport networks Q12: Transport network architectures Q13: Network synchronization and time distribution performance Q14: Management and control of transport systems and equipment Q15: Communications for Smart Grid Q16: Outside plant and related indoor installation Q17: Maintenance and operation of optical fibre cable networks Q18: Broadband in-premises networking
- 28. International Telecommunication Union 28 ITU-T Study Group 15 Transport, Access and Home Statistics (I) 2163 contributions received 2811 TDs generated 403 Liaison Statements generated 6 SG meetings held 2 separate WP1/15 meetings held 102 face-to-face Rapporteur Group meetings authorized Average 290 participants per SG meeting
- 29. International Telecommunication Union 29 ITU-T Study Group 15 Transport, Access and Home Statistics (II) 7 Texts Determined 275 Texts Consented 19 Texts Agreed 39 New Recommendations 253 Revised Recommendations, Amendments, Corrigenda 12 Supplements 18 Questions assigned by WTSA-12 18 Questions proposed for next period
- 30. International Telecommunication Union 30 ITU-T Study Group 15 Transport, Access and Home Thank you! Dr. Stephen J. Trowbridge is a Consulting Member of Technical Staff (CMTS) at Nokia and a member of the standards team for the IP and Optical Networking (ION) business group. He received his B.S. (EE&CS), M.S. (CS), and Ph.D. (CS) from the University of Colorado, Boulder. He joined Bell Laboratories–AT&T (now Nokia) in 1977. He has been active in optical networking standardization since 1995. He is chairman of ITU-T Study Group15, Networks, Technologies and Infrastructures for Transport, Access and Home. He was a member of the IEEE P802.3ba 100 Gb/s Ethernet editorial team and is currently a member of the IEEE P802.3bs 200 Gb/s and 400 Gb/s Ethernet editorial team. He is editor of the Optical Internetworking Forum (OIF) Flex Ethernet implementation agreement. He was named a Bell Labs Fellow in 2014.