Home networking standards in ITU-T SG15

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Home networking standards in ITU-T SG15
Document No GSC16-GTSC9-04
Source ITU-T
Contact Yoichi MAEDA
GSC Session GTSC9
Agenda Item 4.3 Home Networking

• Yoichi MAEDA
• ITU-T SG15

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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.
• G.hnem OFDM-based high data rate NB-PLC for
  demand side management, distribution automation,
  AMI, in-home energy management, home automation,
  PEV charging, etc.
• G.9970/9971/9973 Generic home network transport
  architecture, Requirements for IP home networks,
  and Protocol for identification of home network
  topology.

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Strategic Direction
Home networking/PLC related Standards
BB-PLC SDO NB-PLC
G.hn (G.9960, G.9961) G.CX (G.9972) ITU-T G.hnem (G.9955, G.9956)
IEEE 1901 (including ISP) IEEE IEEE P1901.2
ISO/IEC 12139-1 IEC ISO/IEC 14908-3 (LonTalk) ISO/IEC 14543-3 (KNX) IEC 61334-5
The issue of updating coexistence G.9972 is that
the ISO/IEC 12139-1 broadband PLC standard
coexist with G.hn and IEEE 1901.
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Challenges
Remote Management of Customer Premises Equipment
(CPE)

• Draft new Recommendation ITU-T G.9980 (ex.
  G.cwmp), Remote management of CPE over broadband
  networks CPE WAN Management Protocol (CWMP) for
  TAP
• The Broadband Forum (BBF) CPE WAN Management
  Protocol (CWMP) suite of specifications based on
  BBF TR-069 is by far the mostly widely practiced
  method for remote management of CPE
• ITU-T references BBF CWMP in G.9960, G.9970,
  G.997.1
• ETSI has standardized BBF CWMP in ES 203 069
• ATIS references BBF CWMP in its specifications
• IETF has coordinated its work with BBF CWMP
• ISO/IEC is encouraged to align its CPE management
  standards with the existing worldwide practice

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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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G.hn suite of Recommendations

• Best-in-class home networking performance (up to
  1 Gbps) supporting all types of inside wiring
  with one technology
• Powerline, Coax, Phoneline, CAT 5
• Best-in-class control of ElectroMagnetic
  Compatibly (EMC) coexistence (developed in
  cooperation with ITU-R experts)
• PSD limit and shaping
• Both permanent and dynamic frequency notching
• Dynamic power control minimizes transmitted power
  without sacrificing QoS
• Automatic coordination with neighbor networks
• G.hn Recommendations
• G.9960 Physical layer (support of relay nodes for
  expanded coverage)
• G.9961 Data link layer (supports full QoS and
  multicast)
• G.9962 HN management (including BBF TR69 support)
• G.9963 MIMO (advanced performance)
• G.9964 HN power spectrum limits for EMC
• G.9972 coexistence with other broadband PLC
  systems

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G.hnem suite of standards

• 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, including all CENELEC
  bands
• Includes support for PRIME and G3-PLC in stand
  alone Normative Annexes
• G.hnem Recommendations
• G.9955 physical layer
• G.9956 data link layer
• Approval expected for Dec. 2011

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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