Document

LoRaWAN® Regional Parameters v1.0.3revA

Issue link: https://read.uberflip.com/i/1428359

Contents of this Issue

Navigation

Page 56 of 70

LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 57 of 71 The authors reserve the right to change specifications without notice. Table 65 : KR920-923 downlink RX1 data rate mapping 1374 The RX2 receive window uses a fixed frequency and data rate. The default parameters are 1375 921.90MHz / DR0 (SF12, 125 kHz). 1376 2.9.8 KR920-923 Class B beacon and default downlink channel 1377 The beacons SHALL be transmitted using the following settings 1378 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 66 : KR920-923 beacon settings 1379 1380 The beacon frame content is: 1381 Size (bytes) 2 4 2 7 2 BCNPayload RFU Time CRC GwSpecific CRC The beacon default broadcast frequency is 923.1MHz. 1382 The class B default downlink pingSlot frequency is 923.1MHz 1383 1384 2.9.9 KR920-923 Default Settings 1385 The following parameters are recommended values for the KR920-923Mhz band. 1386 RECEIVE_DELAY1 1 s 1387 RECEIVE_DELAY2 2 s (MUST be RECEIVE_DELAY1 + 1s) 1388 JOIN_ACCEPT_DELAY1 5 s 1389 JOIN_ACCEPT_DELAY2 6 s 1390 MAX_FCNT_GAP 16384 1391 ADR_ACK_LIMIT 64 1392 ADR_ACK_DELAY 32 1393 ACK_TIMEOUT 2 +/- 1 s (random delay between 1 and 3 seconds) 1394 If the actual parameter values implemented in the end-device are different from those default 1395 values (for example the end-device uses a longer RECEIVE_DELAY1 and 1396 RECEIVE_DELAY2 latency), those parameters MUST be communicated to the network 1397 server using an out-of-band channel during the end-device commissioning process. The 1398 network server may not accept parameters different from those default values. 1399 1400

Articles in this issue

view archives of Document - LoRaWAN® Regional Parameters v1.0.3revA