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LoRaWAN® Regional Parameters v1.0.3revA

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LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 41 of 71 The authors reserve the right to change specifications without notice. 959 960 961 962 963 964 965 966 Table 39: AU915- 967 928 maximum payload size (not 968 repeater compatible) 969 970 2.6.7 AU915- 971 928 Receive windows 972 • The RX1 receive channel is a function of the upstream channel used to initiate the 973 data exchange. The RX1 receive channel can be determined as follows. 974 o RX1 Channel Number = Transmit Channel Number modulo 8 975 • The RX1 window data rate depends on the transmit data rate (see Table 17 below). 976 • The RX2 (second receive window) settings uses a fixed data rate and frequency. 977 Default parameters are 923.3Mhz / DR8 978 979 Upstream data rate Downstream data rate RX1DROff set 0 1 2 3 4 5 DR0 DR8 DR8 DR8 DR8 DR8 DR8 DR1 DR9 DR8 DR8 DR8 DR8 DR8 DR2 DR10 DR9 DR8 DR8 DR8 DR8 DR3 DR11 DR10 DR9 DR8 DR8 DR8 DR4 DR12 DR11 DR10 DR9 DR8 DR8 DR5 DR13 DR12 DR11 DR10 DR9 DR8 DR6 DR13 DR13 DR12 DR11 DR10 DR9 Table 40 : AU915-928 downlink RX1 data rate mapping 980 981 The allowed values for RX1DROffset are in the [0:5] range. Values in the range [6:7] are 982 reserved for future use. 983 984 2.6.8 AU915-928 Class B beacon 985 The beacons are transmitted using the following settings: 986 DR 8 Corresponds to SF12 spreading factor with 500kHz bw CR 1 Coding rate = 4/5 Signal polarity Non-inverted As opposed to normal downlink traffic which uses inverted signal polarity frequencies 923.3 to 927.5MHz with 600kHz steps Beaconing is performed on the same channel that normal downstream traffic as defined in the Class A specification Table 41 : AU915-928 beacon settings 987 The downstream channel used for a given beacon is: 988 Channel = [ ( _ _ )] 8 989 2 59 51 19 11 3 123 115 61 53 4 250 242 133 125 5 250 242 250 242 6 250 242 250 242 7 Not defined Not defined 8 61 53 61 53 9 137 129 137 129 10 250 242 250 242 11 250 242 250 242 12 250 242 250 242 13 250 242 250 242 14:15 Not defined Not defined

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