1 Examples of existing standards related to power grid management systems IEEE IEEE 802 has a variety of wireless standards that are applicable to first mile applications for power grid management systems. A summary of the technical and operating features of the relevant IEEE 802 wireless standards are given in the tables below. 1 Technical and operating features of IEEE Std 802.11 802.11ah Item 802.11 802.11n 802.11ac Model 1 Model 2 Supported frequency bands 2.4 GHz 900 MHz 900 MHz 2.4 GHz 5 GHz (licensed or unlicensed) Nominal operating range 1.5 km 2 km 2 km 1 km 1 km Mobility capabilities nomadic nomadic nomadic nomadic nomadic (nomadic/mobile) and and and mobile mobile mobile Peak data rate 2 Mb/s 156 Mb/s 1.3 Mb/s 600 Mb/s 6934 Mb/s (uplink/downlink if different) Duplex method (FDD, TDD TDD, etc.) Nominal RF bandwidth 20 MHz 1, 2, 4, 8, 16 MHz 2 MHz 20, 40 20, 40, 80, MHz 160 MHz Diversity techniques Space time Support for MIMO (yes/no) No Yes No Yes Yes Beam steering/forming No Yes Yes Yes Yes Retransmission ARQ Forward error correction Yes Convolutional and Convolutional and Yes Yes LDPC LDPC Interference management Listen Listen before talk and Listen before talk and Listen Listen before talk frequency channel frequency channel before talk before talk selection selection Power management Yes Connection topology point-to-point, multi-hop, star Medium access methods CSMA/CA Multiple access methods CSMA CSMA/TDMA CSMA/TDMA CSMA CSMA Discovery and association Passive and active scanning method QoS methods Radio queue priority, pass-thru data tagging, and traffic priority Location awareness Yes Ranging Yes Encryption AES-128, AES-256 Authentication/replay Yes protection Key exchange Yes
1 Examples of existing standards related to power grid management systems IEEE IEEE 802 has a variety of wireless standards that are applicable to first mile applications for power grid management systems. A summary of the technical and operating features of the relevant IEEE 802 wireless standards are given in the tables below. 1 Technical and operating features of IEEE Std 802.11 Item 802.11 802.11ah 802.11n 802.11ac Model 1 Model 2 Supported frequency bands (licensed or unlicensed) 2.4 GHz 900 MHz 900 MHz 2.4 GHz 5 GHz Nominal operating range 1.5 km 2 km 2 km 1 km 1 km Mobility capabilities (nomadic/mobile) nomadic and mobile nomadic nomadic nomadic and mobile nomadic and mobile Peak data rate (uplink/downlink if different) 2 Mb/s 156 Mb/s 1.3 Mb/s 600 Mb/s 6934 Mb/s Duplex method (FDD, TDD, etc.) TDD Nominal RF bandwidth 20 MHz 1, 2, 4, 8, 16 MHz 2 MHz 20, 40 MHz 20, 40, 80, 160 MHz Diversity techniques Space time Support for MIMO (yes/no) No Yes No Yes Yes Beam steering/forming No Yes Yes Yes Yes Retransmission ARQ Forward error correction Yes Convolutional and LDPC Convolutional and LDPC Yes Yes Interference management Listen before talk Listen before talk and frequency channel selection Listen before talk and frequency channel selection Listen before talk Listen before talk Power management Yes Connection topology point-to-point, multi-hop, star Medium access methods CSMA/CA Multiple access methods CSMA CSMA/TDMA CSMA/TDMA CSMA CSMA Discovery and association method Passive and active scanning QoS methods Radio queue priority, pass-thru data tagging, and traffic priority Location awareness Yes Ranging Yes Encryption AES-128, AES-256 Authentication/replay protection Yes Key exchange Yes
24-13-0039-02-0000-itu-r-236-1-second-response.docx