1. Co-existence and PAP 15 IEEE P1901.2 Oleg Logvinov, Arkados July 7, 2010, 1901.2 Meeting

2. Notice/Release/Patent P&P Notice: This document has been prepared to assist the IEEE P1901.2 working group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend, or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to The Institute of Electrical and Electronics Engineers, Inc. (“IEEE”), a corporation with offices at 445 Hoes Lane, Piscataway, NJ 08855-1331, to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by the IEEE P1901 working group. Patent Policy and Procedures: The contributor is familiar with the IEEE Patent Policy and Procedures, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the IEEE of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the chair of the IEEE P1901.2 working group as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE P1901.2 working group. If you have questions, contact the IEEE Patent Committee Administrator at.patcom@ieee.org

3. Scope of the IEEE P1901.2 This standard specifies communications for low frequency (less than 500 kHz) narrowband power line devices via alternating current and direct current electric power lines. This standard supports indoor and outdoor communications over low voltage line (line between transformer and meter, less than 1000 V), through transformer low-voltage to medium- voltage (1000 V up to 72 kV) and through transformer medium-voltage to low-voltage power lines in both urban and in long distance (multi- kilometer) rural communications. The standard uses transmission frequencies less than 500 kHz. Data rates will be scalable to 500 kbps depending on the application requirements. This standard addresses grid to utility meter, electric vehicle to charging station, and within home area networking communications scenarios. Lighting and solar panel power line communications are also potential uses of this communications standard. This standard focuses on the balanced and efficient use of the power line communications channel by all classes of low frequency narrow band (LF NB) devices, defining detailed mechanisms for coexistence between different LF NB standards developing organizations (SDO) technologies, assuring that desired bandwidth may be delivered. This standard assures coexistence with broadband power line (BPL) devices by minimizing out-of-band emissions in frequencies greater than 500 kHz. The standard addresses the necessary security requirements that assure communication privacy and allow use for security sensitive services. This standard defines the physical layer and the medium access sub-layer of the data link layer, as defined by by the International Organization for Standardization (ISO) Open Systems Interconnection (OSI) Basic Reference Model.

4. P1901.2 Membership Utilities –EDF/ERDF, Iberdrola Equipment manufacturers –Accenture Aclara/Esco Technologies Inc., Cisco, Current Technologies International, devolo AG, Echelon Corop, Itron, Lantiq, Power Plus Communications AG, Sagemcom Energy & Telecom, Schneider Electric, Sumitomo Electric Industries, Ltd. Silicon manufacturers –ADD Semiconductor, Arkados, Inc, Atheros Communications, Lantiq, Maxim, SPiDCOM Technologies, STMicroelectronics, Texas Instruments Inc., Watteco, Yitran Communication Industry alliances –HomePlug Powerline Alliance 9-Sep-154

5. Progress of the Working Group OFDM has been selected as the technology for the 9 kHz to 500 kHz band PRIME and G3 have been selected as a starting point for the development of PHY and MAC in 9 kHz – 500 kHz band The support for IPv6 and RPL were made mandatory The following technical subgroups were established –SAP definition –PHY/MAC for 9 kHz – 500 kHz band –PHY/MAC under 9 kHz –End User Technical Requirements –EMC 9-Sep-155

6. Is participation in redundant efforts a good use of our time? 9-Sep-156 IEEE P1901.2G.hnem Accenture Aclara/Esco Technologies Inc. ADD Semiconductor Arkados, Inc Atheros Communications Cisco Current Technologies International devolo AG Echelon Corop EDF/ERDF eTec Gigle Networks HomePlug Powerline Alliance Iberdrola Itron Lantiq Maxim Power Plus Communications AG Sagemcom Energy & Telecom Schneider Electric SPiDCOM Technologies STMicroelectronics Sumitomo Electric Industries, Ltd. Texas Instruments Inc. Watteco Yitran Communication

7. Multiple entities are members of both 1901.2 and G.hnem –6 current members are in both organizations. –waste of resources is a significant concern Multiple Redundant Industry efforts: –confuse the market –cause destructive competition –consume resources Redundancy is Bad

8. Summary Coexistence is a core part of the P1901.2 PAR and a deliverable without it will not meet the requirements spelled in the PAR. –P1901.2 focuses on the balanced and efficient use of the power line communications channel by all classes of low frequency narrow band (LF NB) devices, –P1901.2 will define detailed mechanisms for coexistence between different LF NB standards developing organizations (SDO) technologies, assuring that desired bandwidth may be delivered. P1901.2 is comprised of stakeholders that represent every link of the value chain in the industry P1901.2 has agreed to unify the industry by developing PHY/MAC that is based on both PRIME and G3 P1901.2 is developing End User Technical Requirements to guide the development process 9-Sep-158

9. Conclusion Proposed motion –We move to instruct the chair to expresses the following position of the P1901.2 Working Group no later then the next PAP 15 conference call and in discussions with ITU: To harmonize our standards development processes we are open to the joint work on the coexistence mechanism development based on the P1901.2 platform as defined in the P1901.2 PAR. To implement this, a practical possibility would be for ITU-T to join the IEEE P1901.2 WG as a member entity. 9-Sep-159