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LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 51 of 55 The authors reserve the right to change specifications without notice. Table 72: INDIA 865-867 maximum payload size 1333 If the end-device will never operate with a repeater then the maximum application payload 1334 length in the absence of the optional FOpt control field should be: 1335 1336 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 73 : INDIA 865-867 maximum payload size (not repeater compatible) 1337 2.9.7 INDIA 865-867 Receive windows 1338 The RX1 receive window uses the same channel than the preceding uplink. The data rate is 1339 a function of the uplink data rate and the RX1DROffset as given by the following table. The 1340 allowed values for RX1DROffset are in the [0:7] range. Values in the [6:7] range allow 1341 setting the Downstream RX1 data rate higher than Upstream data rate. 1342 The allowed values for RX1DROffset are in the [0:7] range, encoded as per the below table: 1343 RX1DROffset (Coded value) 0 1 2 3 4 5 6 7 Effective_RX1DROffset 0 1 2 3 4 5 -1 -2 Downstream data rate in RX1 slot = MIN (5, MAX (0, Upstream data rate – 1344 Effective_RX1DROffset)) 1345 The RX2 receive window uses a fixed frequency and data rate. The default parameters are 1346 866.550 MHz / DR2 (SF10, 125 kHz). 1347 2.9.8 INDIA 865-867 Class B beacon and default downlink channel 1348 The beacons are transmitted using the following settings 1349 DR 4 Corresponds to SF8 spreading factor with 125 kHz BW CR 1 Coding rate = 4/5 Signal polarity Non-inverted As opposed to normal downlink traffic which uses inverted signal polarity 1350 The beacon frame content is: 1351 Size (bytes) 1 4 2 7 3 2 BCNPayload RFU Time CRC GwSpecific RFU CRC The beacon default broadcast frequency is 866.550MHz. 1352 The class B default downlink pingSlot frequency is 866.550MHz 1353 1354