Issue link: https://read.uberflip.com/i/1479525
LoRaWAN® Regional Parameters RP002-1.0.4 ©2022 LoRa Alliance ® Page 81 of 101 The authors reserve the right to change specifications without notice. 2.12.5 IN865-867 LinkADRReq Command 1643 The INDIA 865-867 channel plan LoRaWAN supports a minimum of 24 and a maximum of 80 1644 channels. The ChMaskCntl field of the LinkADRReq command has the following meaning: 1645 1646 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 82: IN865-867 ChMaskCntl value 1647 If ChMaskCntl = 5, the corresponding bits in the ChMask enable and disable a bank of eight 1648 channels defined by the following calculation: [ChannelMaskBit * 8, ChannelMaskBit * 8 1649 +7]. 1650 If the ChMaskCntl field value is RFU, the end-device SHALL 16 reject the command and unset 1651 the Channel mask ACK bit in its response. 1652 2.12.6 IN865-867 Maximum Payload Size 1653 The maximum MACPayload size length (M) is given by the following table. It is derived from 1654 a limitation of the PHY layer, depending on the effective modulation rate used, taking into 1655 account a possible repeater encapsulation layer. The maximum application payload length in 1656 the absence of the OPTIONAL FOpts control field (N) is also given for information only. The 1657 value of N might be smaller if the FOpts field is not empty. 1658 1659 Data Rate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 230 222 5 230 222 7 230 222 8:15 Not defined Table 83: IN865-867 maximum payload size (repeater compatible) 1660 If the end-device will never operate with a repeater, the maximum application payload length 1661 in the absence of the OPTIONAL FOpts control field SHOULD be: 1662 1663 Data Rate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 250 242 5 250 242 7 250 242 8:15 Not defined Table 84: IN865-867 maximum payload size (not repeater compatible) 1664