Home networking standards in ITU-T SG15

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Home networking standards in ITU-T SG15
Document No GSC17-PLEN-26r1
Source ITU
Contact Bilel Jamoussi
GSC Session GSC Session (PLEN, GRSC10, GTSC10, ADMIN, IPR, CL)
Agenda Item 6.14

• Bilel Jamoussi
• ITU/TSB

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Highlight of Current Activities

• Recommendations for Access/Home Networks
• G.hn OFDM-based 1 Gbps unified technology
  operating over anywire (PLC, phoneline, coax)
  for very high speed home networking, and other
  access applications such as demand side
  management, in-home energy management, and more.
  Coexistence between multiple in-home PLC systems
  and also coexistence of access PLC with in-home
  PLC is a key issue.
• G.hn LCP G.hn Low Complexity Profile (low power
  consumption, low cost, 25 MHz band, reduced data
  rate 2-18 Mbps) for home automation, automotive,
  and many other green applications.
• ITU-T family of NB-PLC recommendations
  (G.9901/2/3/4) OFDM-based high data rate NB-PLC
  transceivers for demand side management,
  distribution automation, AMI, in-home energy
  management, home automation, PEV charging, etc.
• G.9970/1/3 Generic home network transport
  architecture, Requirements for IP home networks,
  and Protocol for identification of home network
  topology.
• G.fast Transport technology for metallic cable
  between a distribution point of FTTdp (Fiber to
  the distribution point) to customers. This
  provides the best aspects of Fiber to the home
  and ADSL

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Strategic Direction
Home networking/PLC related Standards
BB-PLC SDO NB-PLC
G.hn (G.9960, G.9961, G.9962, G.9963, G.9964) G.CX (G.9972) ITU-T ITU-T family of NB-PLC Recs (G.9901, G.9902, G.9903 and G.9904)
IEEE 1901 (including ISP) IEEE IEEE P1901.2
(Referencing ITU-T Recs) ISO/IEC 12139-1(Note) IEC (Referencing ITU-T Recs) ISO/IEC 14908-3 (LonTalk) ISO/IEC 14543-3 (KNX) IEC 61334-5
Note Work on harmonizing with ITU-T
Recommendations is on-going. Currently, it does
not support G.9972 and interferes with G.hn.
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Challenges

• The continuing customer demand for ever higher
  bit rate services will require standards covering
  all aspects of in-premises networking
  transceivers operating over metallic conductors.
• The support of smart grids will require standards
  covering all aspects of narrowband and broadband
  communications and their management across the
  power grid from generation to load. Given the
  interdisciplinarity nature of smart grid
  applications, it is expected that a high degree
  of cooperation with other ITU Study Groups as
  well as other International Bodies such as IEC is
  required.

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Next Steps / Actions

• ITU-Ts role in cooperation with other bodies
• The power grid often crosses international or
  jurisdictional boundaries, but applications and
  devices must interoperate regardless of those
  boundaries
• The Telecom/Power/CE convergence for the Smart
  Grid will drive a new echo-system of products and
  this must happen under the auspices of
  International SDOs
• ITU-T can have a major role in facilitating the
  convergence of the communications, power, and CE
  worlds
• Cooperation between the major International SDOs
  is key to success!!

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Supplementary Slides
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ITU-T family of PLC Recommendations
G.9960/61 (G.hn) 2-100 MHz
G.9960/61 Multiple media, bit rates of hundreds
Mb/s to 1Gb/s MIMO for PLC BB networking
entertainment
G.9960/61 LCP Reduced bit rate (5-20 Mb/s),
complexity, and power consumption
G.9960/61 (G.hn LCP) 2-25 MHz
G.990x - NB PLC family Bit rates up to 1 Mb/s,
high robustness low complexity and power
consumption
G.990x (G.hnem, G3, and PRIME) 9-490 kHz
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NB-PLC Recommendations

• Low complexity OFDM-based NB-PLC technology
  optimized for Smart Grid and home automation,
  addresses both access (low/medium voltage
  distribution lines) and in-home applications at
  frequencies below 500 kHz
• Following Recommendations were recently approved
• G.9901 (11/2012) Narrow-band OFDM power line
  communication transceivers - Power spectral
  density (PSD) specification.
• G.9902 (G.hnem) (10/2012) Narrow-band OFDM power
  line communication transceivers G.hnem Cenelec
  A, B, CD, and FCC.
• G.9903 (G3-PLC) (10/2012) Narrow-band OFDM power
  line communication transceivers G3-PLC Cenelec
  A, B, FCC and ARIB bandplan.
• G.9904 (PRIME) (10/2012) Narrow-band OFDM power
  line communication transceivers PRIME Cenelec A.

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G.hn suite of BB-PLC Recs

• Best-in-class home networking performance (up to
  1 Gbps) supporting all types of inside wiring
• Powerline, Coax, Phoneline, CAT 5
• Best-in-class ElectroMagnetic Compatibility (EMC)
  control tools (in cooperation with ITU-R experts)
• PSD limit and shaping, fixed dynamic frequency
  notching
• Necessary tools to meet the ucoming CENELEC prEN
  50561-1 requirements
• Dynamic power control minimizes transmitted power
• G.hn Recommendations
• G.9960 (12/2011) Physical layer (support of relay
  nodes)
• G.9961 (06/2010) Data link layer (supports full
  QoS and multicast)
• G.9962 HN management (including BBF TR69 support)
• G.9963 (12/2011) MIMO (advanced performance)
• G.9964 (12/2011) HN power spectrum limits for EMC
• G.9972 (06/2010) coexistence with other broadband
  PLC systems

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G.9972 BB-PLC coexistence

• An in-home PLC network is not contained within
  the home
• PLC signals in neighboring apartments will
  interfere with each other
• The meter can act as a gate, but in many cases
  offers only a few dB of signal attenuation so
  that also in-home and utility PLC networks will
  interfere
• Problem is worsened by
• An increase in residence density, rural areas are
  less affected
• Cross-cable coupling in multiple dwelling units
• Penetration of PLC technology
• Usage of PLC spectrum is not regulated so that
  any PLC technology can use channel resources
  without having any legal obligation to protect
  other PLC technology from interference
• Given the availability of multiple
  non-interoperable PLC standards (IEEE 1901-FFT,
  IEEE 1901-Wavelet, G.996x (G.hn), IEC-ISO/IEC
  12139-1) and a plethora of non-interoperable
  proprietary technologies (HomePlug AV/Extended,
  HomePlug Green PHY, Panasonic HD-PLC, UPA
  Powermax, Gigle MediaXtreme, etc.), the issue of
  mutual interference can hinder the success of PLC
• The solution to interference between
  non-interoperable PLC technologies is
  coexistence, which is a resource sharing
  protocol that allows PLC technologies to share
  the medium in an orderly way

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cntd G.9972 BB-PLC coexistence

• The Inter-System Protocol (ISP) is a broadband
  PLC coexistence scheme that allows coexistence of
  up to four simultaneously present PLC
  technologies
• It has been included in the IEEE 1901 PHY/MAC
  standard
• It is standardized as a stand-alone
  recommendation in ITU-T G.9972
• The ISP coexistence scheme in G.9972 can be used
  to ensure
• That in-home, access, and Smart Grid SDO-based
  broadband PLC will coexist it currently
  supports coexistence between IEEE 1901-FFT, IEEE
  1901-Wavelet, and G.hn and can be modified to
  include also IEC-ISO/IEC 12139-1
• That the operation of Smart Grid and home
  networking devices can be decoupled and allowed
  to mature at their traditional obsolescence rate
• That utilities and service providers can avoid
  resolving service issues caused by interference
  between non-interoperable PLC devices supporting
  different applications
• In one word, coexistenceinsurance that PLC will
  not stop working due to interference created by
  neighboring non-interoperable devices
• As a response to concerns that some vendors may
  not implement ISP in their products, PAP 15 of
  SGIP made the strong recommendation to NIST that
  all broadband PLC technologies must implement ISP
  and also turn it on at all times
• For the success of coexistence it is necessary to
  have the availability of an international and
  stand alone standard, and G.9972 ensures this

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What is FTTdp ?

• A broadband access solution taking fibre to a
  distribution point (FTTdp) very close to the
  customers premises, with total wire length to the
  customers transceiver up to 250m.
• It is expected that the bulk of the loop lengths
  may be in the order 30 to 50m. On 30 m loops,
  aggregate data rates up to at least 500 Mb/s
  should be supported on a single pair.

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FTTdp/G.fast raison dêtre

• To provide the best aspects of Fibre to the
  home and ADSL
• Fibre to the home bit-rates
• customer self-installation like ADSL