Issue link: https://read.uberflip.com/i/1428359
LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 29 of 71 The authors reserve the right to change specifications without notice. 2.4.5 CN779-787 LinkAdrReq command 658 659 The CN780 LoRaWAN only supports a maximum of 16 channels. When ChMaskCntl field is 660 0 the ChMask field individually enables/disables each of the 16 channels. 661 662 ChMaskCntl ChMask applies to 0 Channels 0 to 15 1 RFU .. .. 4 RFU 5 RFU 6 All channels ON The device should enable all currently defined channels independently of the ChMask field value. 7 RFU Table 22: CN779-787 ChMaskCntl value table 663 664 If the ChMask field value is one of values meaning RFU, then end-device SHALL reject the 665 command and unset the "Channel mask ACK" bit in its response. 666 2.4.6 CN779-787 Maximum payload size 667 The maximum MACPayload size length (M) is given by the following table. It is derived from 668 limitation of the PHY layer depending on the effective modulation rate used taking into account 669 a possible repeater encapsulation layer. The maximum application payload length in the 670 absence of the optional FOpt control field (N) is also given for information only. The value of 671 N MAY be smaller if the FOpt field is not empty: 672 673 DataRate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 230 222 5 230 222 6 250 242 7 230 222 8:15 Not defined Table 23: CN779-787 maximum payload size 674 675 If the end-device will never operate with a repeater then the maximum application payload 676 length in the absence of the optional FOpt control field SHOULD be: 677 678 DataRate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 250 242 5 250 242 6 250 242 7 250 242 8:15 Not defined