Issue link: https://read.uberflip.com/i/1479525
LoRaWAN® Regional Parameters RP002-1.0.4 ©2022 LoRa Alliance ® Page 34 of 101 The authors reserve the right to change specifications without notice. 2.4.5 EU863-870 LinkADRReq Command 604 The EU863-870 channel plan of LoRaWAN supports a minimum of 24 and a maximum of 80 605 channels. The ChMaskCntl field of the LinkADRReq command has the following meaning: 606 607 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 independently of the ChMask field value. 7 RFU Table 11: EU863-870 ChMaskCntl value 608 If ChMaskCntl = 5, the corresponding bits in the ChMask enable and disable a bank of eight 609 channels defined by the following calculation: [ChannelMaskBit * 8, ChannelMaskBit * 8 610 +7]. 611 If the ChMaskCntl field value is RFU, the end-device SHALL 16 reject the command and unset 612 the Channel mask ACK bit in its response. 613 2.4.6 EU863-870 Maximum Payload Size 614 The maximum MACPayload size length (M) is given by the following table. It is derived from 615 a limitation of the PHY layer, depending on the effective modulation rate used, taking into 616 account a possible repeater encapsulation layer. The maximum application payload length in 617 the absence of the OPTIONAL FOpts control field (N) is also given for information only. The 618 value of N MAY be smaller if the FOpts field is not empty. 619 620 Data Rate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 230 222 5 230 222 6 230 222 7 230 222 8 58 50 9 123 115 10 58 50 11 123 115 12:15 Not defined Table 12: EU863-870 maximum payload size (repeater compatible) 621 622 16 Made SHALL from SHOULD starting in LoRaWAN Regional Parameters Specification 1.0.3rA.