Issue link: https://read.uberflip.com/i/1540208
Regional Parameters RP002-1.0.5 ©2022-2025 LoRa Alliance ® Page 57 of 116 The authors reserve the right to change specifications without notice. 1101 Example: 1102 First pass: Random channel from [0-7], followed by [8-15] … [56-63], 1103 then 64. 1104 Second pass: Random channel from [0-7], followed by [8-15] … [56-63], 1105 then 65. 1106 Last pass: Random channel from [0-7], followed by [8-15] … [56-63], 1107 then 71. 1108 Personalized devices SHALL have all 72 channels enabled following a reset and SHALL use 1109 the channels for which the device's default data-rate is valid. 1110 The default Join-Request Data Rate SHALL be DR2 (SF10/125 kHz); this setting ensures that 1111 end-devices are compatible with the 400ms dwell time limitation until the actual dwell time limit 1112 is notified to the end-device by the Network Server via the MAC command 1113 TxParamSetupReq. 1114 AU915-928 end-devices SHALL consider UplinkDwellTime = 1 during boot stage until 1115 reception of the TxParamSetupReq command. 1116 AU915-928 end-devices SHALL always consider DownlinkDwellTime = 0, since downlink 1117 channels use 500 kHz bandwidth without any dwell time limit. 1118 3.8.3 AU915-928 Data Rate and End-Device Output Power Encoding 1119 The TxParamSetupReq and TxParamSetupAns MAC commands SHALL be implemented 1120 by AU915-928 devices. 1121 If the field UplinkDwellTime is set to 1 by the Network Server in the TxParamSetupReq 1122 command, AU915-928 end-devices SHALL adjust the time between two consecutive uplink 1123 transmissions to meet the local regulations. Twenty seconds (20s) are RECOMMENDED 1124 between two uplink transmissions when UplinkDwellTime = 1 but this value MAY be 1125 adjusted depending on local regulations. 1126 There is no such constraint on time between two consecutive transmissions when 1127 UplinkDwellTime = 0. 1128 The following encoding is used for Data Rate (DR) in the AU915-928 band: 1129 1130 Uplink Data Rate Configuration Indicative Physical Bit Rate [bit/sec] 0 LoRa: SF12 / 125 kHz 250 1 LoRa: SF11 / 125 kHz 440 2 LoRa: SF10 / 125 kHz 980 3 LoRa: SF9 / 125 kHz 1760 4 LoRa: SF8 / 125 kHz 3125 5 LoRa: SF7 / 125 kHz 5470 6 LoRa: SF8 / 500 kHz 12500 7 LR-FHSS CR1/3: 1.523 MHz BW 162 8 RFU 9 LoRa: SF6 / 125 kHz 9375 10 LoRa: SF5 / 125 kHz 15625 11-14 RFU 15 Defined in [TS001] 3 Table 39: AU915-928 Uplink data rates 1131 1132