doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 1 G.hn: Update on the status and use for Smart Grid Date: Authors:

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 2 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 (over 600 Million DSL ports deployed) and the first HN Recommendations ( G.998, G.9954, over phone wiring in ). Now finalizing G.hn

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 3 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

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 4 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

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 5 G.hn – multi-domain network architecture

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 6 Updated road map of G.hn G.hn Working Group formed in ITU G.hn Working Group formed in ITU 1H 06 2H 08 G.hn PHY and Architecture Consented 1H 10Finalizing of DLL special management procedures, and consent of DLL (G.9961) 1H 10 Finalizing of DLL special management procedures, and consent of DLL (G.9961) 1H 09 Data Link Layer progressed to Baseline Text 2H 09 Approval of G.9960, consent of G.9972, determination of the DLL baseline text Approval of G.9960, consent of G.9972, determination of the DLL baseline text 1H 10Approval of all HN Recommendations 1H 10 Approval of all HN Recommendations

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 7 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.

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 8 OSI Layers – relation between SG and G.hn 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)

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 9 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);

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 10 Utility access example: mixed HAN, single domain

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 11 Utility access example: mixed HAN, multi-domain

doc.: IEEE P Submission October 2009 Infineon Technologies NASlide 12 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