Issue link: https://read.uberflip.com/i/1428359
LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 19 of 71 The authors reserve the right to change specifications without notice. allowed values for RX1DROffset are in the [0:5] range. Values in the [6:7] range are reserved 391 for future use. 392 393 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 10: EU863-870 downlink RX1 data rate mapping 394 395 The RX2 receive window uses a fixed frequency and data rate. The default parameters are 396 869.525 MHz / DR0 (SF12, 125 kHz) 397 398 2.2.8 EU863-870 Class B beacon and default downlink channel 399 The beacons SHALL be transmitted using the following settings 400 DR 3 Corresponds to SF9 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 Table 11: EU863-870 beacon settings 401 402 The beacon frame content is: 403 404 Size (bytes) 2 4 2 7 2 BCNPayload RFU Time CRC GwSpecific CRC 405 The beacon default broadcast frequency is 869.525MHz. 406 The Class B default downlink pingSlot frequency is 869.525MHz 407 408 2.2.9 EU863-870 Default Settings 409 The following parameters are recommended values for the EU863-870MHz band. 410 RECEIVE_DELAY1 1 s 411 RECEIVE_DELAY2 2 s (MUST be RECEIVE_DELAY1 + 1s) 412 JOIN_ACCEPT_DELAY1 5 s 413 JOIN_ACCEPT_DELAY2 6 s 414 MAX_FCNT_GAP 16384 415 ADR_ACK_LIMIT 64 416 ADR_ACK_DELAY 32 417 ACK_TIMEOUT 2 +/- 1 s (random delay between 1 and 3 seconds) 418