October 2009

Infineon Technologies NASlide 1

doc.: IEEE P2030-09-0102-00-0004

Submission

G.hn: Update on the status and use for Smart Grid

Date: 2009-10-28

Name Affiliations Address Phone email Vladimir Oksman

Infineon Technologies

640 McCarth Blrd, Milpitas, CA 95035

+1 408 472 7938

Vladimir.Oksman@infineon.com

Authors:

October 2009

Infineon Technologies NASlide 2

doc.: IEEE P2030-09-0102-00-0004

Submission

ITU Standards• International Telecommunication Union

– A United Nations organization, the top-level international SDO

– Recognized by WTO

– Members are countries (Member States) and private entities (Sector Members)

• Composed of Three Parts:– ITU-R (formerly CCIR): radio spectrum regulations

– ITU-T (formerly CCITT): telecommunications standards (a.k.a. “Recommendations”)

– ITU-D: promotes telecommunications in developing countries

The ITU-T SG15/Q4 founded in 1997 and developed 11 DSL Recommendations The ITU-T SG15/Q4 founded in 1997 and developed 11 DSL Recommendations (over 600 Million DSL ports deployed) and the first HN Recommendations (over 600 Million DSL ports deployed) and the first HN Recommendations

((G.998, G.9954,G.998, G.9954, over phone wiring in 2000-2006). Now finalizing G.hn over phone wiring in 2000-2006). Now finalizing G.hn

October 2009

Infineon Technologies NASlide 3

doc.: IEEE P2030-09-0102-00-0004

Submission

G.hn Recommendations• During the last years ITU-T developed Recommendations for a world-

wide HN standard, operating on any type of wiring - powerline, coax, phoneline, and Cat 5:- G.9960 – G.hn PHY- G.9961 – G.hn DLL (MAC +)- G.9972 – Coexistence

• G.hn Recommendations intended to ensure interoperability and backwards compatibility of HN devices around the world, and coexistence with IEEE P1901 and other relevant HN technologies

• G.hn is the next generation HN technology:- bandwidth up to 200 MHz;- bit rates up to 1 Gb/s- powerful tools for Qos support (latency, in particular)

• Scalable, energy efficient technology, intended to address the range of applications from residential gateways to simple home-automation devices, while all devices are interoperable

October 2009

Infineon Technologies NASlide 4

doc.: IEEE P2030-09-0102-00-0004

Submission

How G.hn technology is so flexible? It is a combination of a single PHY and a single MAC with carefully

selected set of programmable parameters

PHY:

- programmable symbol length, guard interval, FEC and retransmission parameters- multiple frequency band-plans, allowing baseband, passband, and RF transmission (over coax) - flexible PSD masks and powerful PSD shaping tools

MAC:

- access methods for contention-free, contention-avoidance, and contention-based access- priority-based and parameter-based QoS- point-to-point and a full multi-hop mesh networking- powerful security: CCM encryption (AES 128) with a choice of pair-wise key assignment or per-domain key assignement

October 2009

Infineon Technologies NASlide 5

doc.: IEEE P2030-09-0102-00-0004

Submission

G.hn – multi-domain network architecture

G.hnDomain 2

G.hnDomain 1

G.hnDomain S

Inter-domain bridge Inter-domain bridge

Bridge to Alien HNand Access network

Alien HN:(802.11, 802.3, USB2)

Access Network(DSL, PON, Cable, PLC)

Global Master

DomainMaster

Node . . . . Node

Bridge to Global Master

APC

PHY

LLC

MACPMI - media-independent interface

MDI - media-dependentinteface

A - application interface

Medium

. . .

October 2009

Infineon Technologies NASlide 6

doc.: IEEE P2030-09-0102-00-0004

Submission

Updated road map of G.hn

G.hn Working Group formed in ITUG.hn Working Group formed in ITU1H ‘061H ‘06

2H ‘082H ‘08 G.hn PHY and Architecture ConsentedG.hn PHY and Architecture Consented

1H ‘101H ‘10 Finalizing of DLL special managementFinalizing of DLL special management procedures, and consent of DLL (G.9961) procedures, and consent of DLL (G.9961)

1H ‘091H ‘09 Data Link Layer progressed to Baseline TextData Link Layer progressed to Baseline Text

2H ‘092H ‘09 Approval of G.9960, consent of G.9972, Approval of G.9960, consent of G.9972, determination of the DLL baseline text determination of the DLL baseline text

1H ‘101H ‘10 Approval of all HN RecommendationsApproval of all HN Recommendations

October 2009

Infineon Technologies NASlide 7

doc.: IEEE P2030-09-0102-00-0004

Submission

G.hn for Smart Grid applications

• G.hn addresses requirements to support the Smart Grid by defining a profile that provides significantly reduced complexity and power consumption in exchange to lower bit rates and reduced set on management functions (that are irrelevant for Smart Grid);

• G.hn Smart Grid devices are fully interoperable with all other G.hn devices

• NIST put G.hn on the list of the "Standards Identified for Implementation" for the Smart Grid initiative.

October 2009

Infineon Technologies NASlide 8

doc.: IEEE P2030-09-0102-00-0004

Submission

OSI Layers – relation between SG and G.hn

Layers3-5

PHY

MAC

EAPCA-interface(Ethernet proposed forSmart Grid applications)

G.hn

Smart Grid

SGPC

Smart Grid protocolconvergence sub-layer(for further study)

LLC

Layer 6

Layer 7 Application (e.g., IEC 62480)

Presentation (for further study)

Since Smart Grid addresses OSI layers L3 and above, the relation between SG and G.hn is limited to common interface primitives and performance requirements:

Performance requirements:- Media types- Bit rate- Latency (QoS)- Security

Interface primitives: The SGPC sub-layer should convert SG L3 protocol to Ethernet primitives (802.1)

October 2009

Infineon Technologies NASlide 9

doc.: IEEE P2030-09-0102-00-0004

Submission

Interoperability of HAN devices

• Despite the particular PHY/MAC technology is irrelevant for SG (since SG is on layer L3 and above), using of a world-wide standard PHY/MAC is beneficial because SG devices using different technologies are not interoperable;

• All HN devices should use the same A-interface protocol (802.1 MAC SAP is suggested);

• If multiple PHY/MAC technologies are used, the way to get interoperability is: - use a multi-domain HAN, so that different technologies operate is different domains;- use adaptors to connect appliances (so, the user can select the right one);

October 2009

Infineon Technologies NASlide 10

doc.: IEEE P2030-09-0102-00-0004

Submission

Utility access example: mixed HAN, single domain

HANNon-SGG.hn node

Bridge to aliendomain (BB)

ACNode Utility

Access

Meter

Residenceboundary

ESI

SGG.hn node ESC

PBC

Non-SGG.hn node

G.hn nodeDM

Non-SG

SGG.hn node

SGG.hn node

SGG.hn node

ESM

October 2009

Infineon Technologies NASlide 11

doc.: IEEE P2030-09-0102-00-0004

Submission

Utility access example: mixed HAN, multi-domain

Multi-domainHAN

Non-SGG.hn node

Bridge to aliendomain (BB)

SGAnode Utility

AccessMeter

Residenceboundary

ESI

SGHG.hn node

ESC

PBC

Non-SGG.hn node

G.hn nodeDM A

Non-SG

SGHG.hn node

SGHG.hn node

SGHG.hn node

ESM

Non-SGG.hn node

SGHG.hn node

Bridge toDomain B

G.hn domain A

G.hn domain B

Non-SGG.hn node

DM B

SGA

October 2009

Infineon Technologies NASlide 12

doc.: IEEE P2030-09-0102-00-0004

Submission

Wrap up• G.hn made significant progress in last two month and

moving to completion. January is a goal to consent the last part of the G.hn transceiver – the DLL

• It seems that TF3 can progress its work by adopting the following principles regarding PHY/MAC technologies:- TF3 is agnostic to a specific type of PHY/MAC- TF3 mandates the interface protocol with PHY/MAC (A-interface of G.hn, Ethernet suggested to be considered)- TF3 nails down its layer L3 protocol ASAP - TF3 defines the minimum set of PHY/MAC performance parameters (bit rate, latency, media type, etc.)

• We propose TF3 to establish liaison with ITU-T SG15/Q4