Issue link: https://read.uberflip.com/i/1479525
LoRaWAN® Regional Parameters RP002-1.0.4 ©2022 LoRa Alliance ® Page 53 of 101 The authors reserve the right to change specifications without notice. one (0x01) to indicate the CFList contains a series of ChMask fields as defined in 2.3.2. 1023 Channel-ID values from 0 to 79 are supported and SHALL be interpreted as the 1024 channel number to be enabled or disabled. A cleared bit in the CFList SHALL disable 1025 the associated channel. 1026 2.8.5 AU915-928 LinkADRReq Command 1027 The AU915-928 channel plan of LoRaWAN supports a minimum of 72 and a maximum of 80 1028 channels. The ChMaskCntl field of the LinkADRReq command has the following meaning: 1029 1030 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 controls channel blocks 0 to 9 (6 MSBs are RFU) 6 All 125 kHz ON: ChMask applies to channels 64 to 79 7 All 125 kHz OF : ChMask applies to channels 64 to 79 Table 34: AU915-928 ChMaskCntl value 1031 If ChMaskCntl = 5 19 , bits 0-7 in the ChMask enable and disable a bank of eight 125 kHz 1032 channels and the corresponding 500 kHz channel defined by the following calculation: 1033 [ChannelMaskBit * 8, ChannelMaskBit * 8 +7],64+ChannelMaskBit. Bits 8 and 9 in the 1034 ChMask enable and disable a bank of eight channels defined by the following calculation: 1035 [ChannelMaskBit * 8, ChannelMaskBit * 8 +7]. 1036 If ChMaskCntl = 6, 125 kHz channels are enabled. If ChMaskCntl = 7, 125 kHz channels 1037 are disabled. Simultaneously the channels 64 to 71 are set according to the ChMask bit mask. 1038 The data rate specified in the command need not be valid for channels specified in the 1039 ChMask, as it governs the global operational state of the end-device. 1040 2.8.6 AU915-928 Maximum Payload Size 1041 The maximum MACPayload size length (M) is given by the following table for both uplink dwell 1042 time configurations: No Limit and 400ms. It is derived from the maximum allowed transmission 1043 time at the PHY layer, taking into account a possible repeater encapsulation. The maximum 1044 application payload length in the absence of the OPTIONAL FOpts MAC control field (N) is 1045 also given for information only. The value of N might be smaller if the FOpts field is not empty. 1046 1047