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LoRaWAN Regional Parameters ©2016 LoRa™ Alliance Page 40 of 45 The authors reserve the right to change specifications without notice. 1 The following encoding is used for Data Rate (DR), corresponding Configurations and 2 maximum EIRP Output Power (TXPower) in the KR920-923 band: 3 4 DataRate Configuration Indicative physical bit rate [bit/s] 0 LoRa: SF12 / 125 kHz 250 1 LoRa: SF11 / 125 kHz 440 2 LoRa: SF10 / 125 kHz 980 3 LoRa: SF9 / 125 kHz 1760 4 LoRa: SF8 / 125 kHz 3125 5 LoRa: SF7 / 125 kHz 5470 6..15 RFU Table 50: TX Data rate table 5 6 TXPower Configuration, max EIRP allowed 0 20 dBm 1 14 dBm 2 10 dBm 3 8 dBm 4 5 dBm 5 2 dBm 6 0 dBm 7..15 RFU Table 51: TX power table 7 8 2.8.4 KR920-923 JoinAccept CFList 9 The KR920-923 ISM band LoRaWAN implements an optional channel frequency list 10 (CFlist) of 16 octets in the JoinAccept message. 11 In this case the CFList is a list of five channel frequencies for the channels four to eight 12 whereby each frequency is encoded as a 24 bits unsigned integer (three octets). All these 13 channels are usable for DR0 to DR5 125kHz LoRa modulation. The list of frequencies is 14 followed by a single RFU octet for a total of 16 octets. 15 16 Size (bytes) 3 3 3 3 3 1 CFList Freq Ch4 Freq Ch5 Freq Ch6 Freq Ch7 Freq Ch8 RFU The actual channel frequency in Hz is 100 x frequency whereby values representing 17 frequencies below 100 MHz are reserved for future use. This allows setting the frequency of 18 a channel anywhere between 100 MHz to 1.67 GHz in 100 Hz steps. Unused channels have 19 a frequency value of 0. The CFList is optional and its presence can be detected by the 20 length of the join-accept message. If present, the CFList replaces all the previous channels 21 stored in the end-device apart from the three default channels as defined in Chapter 8.7.2. 22 The newly defined channels are immediately enabled and usable by the end-device for 23 communication. 24

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