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LoRaWAN® Regional Parameters RP002-1.0.4 ©2022 LoRa Alliance ® Page 47 of 101 The authors reserve the right to change specifications without notice. 2.7.4 EU433 Join-Accept CFList 876 The EU433 channel plan of LoRaWAN implements an OPTIONAL CFList of 16 octets in the 877 Join-Accept message. 878 In this case, the CFList is a list of five channel frequencies for the channels three to seven, 879 whereby each frequency is encoded as a 24-bit unsigned integer (three octets). All these 880 channels are usable for DR0 to DR5 125 kHz LoRa modulation. The list of frequencies is 881 followed by a single CFListType octet for a total of 16 octets. The CFListType SHALL be 882 equal to zero (0) to indicate that the CFList contains a list of frequencies. 883 884 Size (bytes) 3 3 3 3 3 1 CFList Freq Ch3 Freq Ch4 Freq Ch5 Freq Ch6 Freq Ch7 CFListType Table 26: EU433 channel frequencies 885 The actual channel frequency in Hz is 100 x frequency, whereby values representing 886 frequencies below 100 MHz are reserved for future use. This allows setting the frequency of 887 a channel anywhere between 100 MHz to 1.678 GHz in 100 Hz steps. Unused channels have 888 a frequency value of 0. The CFList is OPTIONAL and its presence can be detected by the 889 length of the Join-Accept message. If present, the CFList SHALL replace all the previous 890 channels stored in the end-device, apart from the three default channels. 891 The newly defined channels are immediately enabled and usable by the end-device for 892 communication. 893 2.7.5 EU433 LinkADRReq Command 894 The EU433 channel plan of LoRaWAN supports a minimum of 24 and a maximum of 80 895 channels. The ChMaskCntl field of the LinkADRReq command has the following meaning: 896 897 ChMaskCntl ChMask Applies To 0 Channels 0 to 15 1 Channels 16 to 31 2 Channels 32 to 47 3 Channels 48 to 63 4 Channels 64 to 79 5 10 LSBs control channel blocks 0 to 9, 6 MSBs are RFU 6 All channels ON: The device SHALL enable all currently defined channels regardless of the ChMask field value. 7 RFU Table 27: EU433 ChMaskCntl value 898 If ChMaskCntl = 5, the corresponding bits in the ChMask enable and disable a bank of eight 899 channels defined by the following calculation: [ChannelMaskBit * 8, ChannelMaskBit * 8 900 +7]. 901 If the ChMask field value is RFU, the end-device SHALL 25 reject the command and unset the 902 Channel mask ACK bit in its response. 903 2.7.6 EU433 Maximum Payload Size 904 The maximum MACPayload size length (M) is given by the following table. It is derived from 905 a limitation of the PHY layer, depending on the effective modulation rate used, taking into 906 account a possible repeater encapsulation layer. The maximum application payload length in 907 25 Made SHALL from SHOULD starting in LoRaWAN Regional Parameters Specification 1.0.3rA.

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