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RP002-1.0.0 LoRaWAN Regional Parameters ©2019 LoRa Alliance ® Page 81 of 88 The authors reserve the right to change specifications without notice. 1645 DataRate 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 8:15 Not defined Table 91: RU864-870 maximum payload size (repeater compatible) 1646 If the end-device will never operate with a repeater then the maximum application payload 1647 length in the absence of the OPTIONAL FOpt control field SHOULD be: 1648 1649 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 Table 92 : RU864-870 maximum payload size (not repeater compatible) 1650 2.13.7 RU864-870 Receive windows 1651 The RX1 receive window uses the same channel as the preceding uplink. The data rate is a 1652 function of the uplink data rate and the RX1DROffset as given by the following table. The 1653 allowed values for RX1DROffset are in the [0:5] range. Values in the [6:7] range are reserved 1654 for future use. 1655 1656 RX1DROffset 0 1 2 3 4 5 Upstream data rate Downstream data rate in RX1 slot DR0 DR0 DR0 DR0 DR0 DR0 DR0 DR1 DR1 DR0 DR0 DR0 DR0 DR0 DR2 DR2 DR1 DR0 DR0 DR0 DR0 DR3 DR3 DR2 DR1 DR0 DR0 DR0 DR4 DR4 DR3 DR2 DR1 DR0 DR0 DR5 DR5 DR4 DR3 DR2 DR1 DR0 DR6 DR6 DR5 DR4 DR3 DR2 DR1 DR7 DR7 DR6 DR5 DR4 DR3 DR2 Table 93: RU864-870 downlink RX1 data rate mapping 1657 1658 The RX2 receive window uses a fixed frequency and data rate. The default parameters are 1659 869.1MHz / DR0 (SF12, 125 kHz) 1660 1661

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