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LoRaWAN Regional Parameters ©2016 LoRa™ Alliance Page 30 of 45 The authors reserve the right to change specifications without notice. 2.6 CN 470-510MHz Band 1 2.6.1 CN470-510 Preamble Format 2 The following synchronization words should be used: 3 4 Modulation Sync word Preamble length LORA 0x34 8 symbols 2.6.2 CN470-510 Channel Frequencies 5 6 In China, this band is defined by SRRC to be used for civil metering applications. 7 The 470 MHz ISM Band shall be divided into the following channel plans: 8 Upstream – 96 channels numbered 0 to 95 utilizing LoRa 125 kHz BW varying from 9 DR0 to DR5, using coding rate 4/5, starting at 470.3 MHz and incrementing linearly 10 by 200 kHz to 489.3 MHz. 11 12 Channel Index 6 to 38 and 45 to 77 are mainly used by China Electric 13 Power. In the areas where these channels are used by China Electric 14 Power, they should be disabled. 15 16 Downstream – 48 channels numbered 0 to 47 utilizing LoRa 125 kHz BW varying 17 from DR0 to DR5, using coding rate 4/5, starting at 500.3 MHz and incrementing 18 linearly by 200 kHz to 509.7 MHz 19 20 21 96 uplink channels 48 downlink channels 470.3 489.3 500.3 509.7 22 Figure 3: CN470-510 channel frequencies 23 The LoRaWAN can be used in the Chinese 470-510MHz band as long as 24 The radio device EIRP is less than 50mW (or 17dBm). 25 The transmission never lasts more than 5000 ms. 26 27 28 CN470 MHz band end-devices should use the following default parameters: 29 Default radiated transmits output power: 14 dBm. 30 31 CN470-510 end-devices should be capable of operating in the 470 to 510 MHz frequency 32 band and should feature a channel data structure to store the parameters of 96 uplink 33 channels. A channel data structure corresponds to a frequency and a set of data rates 34 usable on this frequency. 35

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