Issue link: https://read.uberflip.com/i/1428362
LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 44 of 55 The authors reserve the right to change specifications without notice. band exclusively uses LBT channel access rule to maximize MACPayload size length and 1153 comply with the South Korea regulations. 1154 KR920-923MHz ISM band end-devices should use the following default parameters 1155 Default EIRP output power for end-device(920.9~921.9MHz): 10 dBm 1156 Default EIRP output power for end-device(922.1~923.3MHz): 14 dBm 1157 Default EIRP output power for gateway: 23 dBm 1158 KR920-923MHz end-devices should be capable of operating in the 920 to 923MHz 1159 frequency band and should feature a channel data structure to store the parameters of at 1160 least 16 channels. A channel data structure corresponds to a frequency and a set of data 1161 rates usable on this frequency. 1162 The following table gives the list of frequencies that should be used by end-devices to 1163 broadcast the JoinReq message. 1164 Modulation Bandwidth [kHz] Channel Frequency [MHz] FSK Bitrate or LoRa DR / Bitrate Nb Channels LoRa 125 922.10 922.30 922.50 DR0 to DR5 / 0.3-5 kbps 3 Table 58: KR920-923 JoinReq Channel List 1165 2.8.3 KR920-923 Data Rate and End-device Output Power encoding 1166 There is no dwell time limitation for the KR920-923 PHY layer. The TxParamSetupReq 1167 MAC command is not implemented in KR920-923 devices. 1168 The following encoding is used for Data Rate (DR), and EIRP Output Power (TXPower) in 1169 the KR920-923 band: 1170 1171 DataRate Configuration Indicative physical bit rate [bit/s] 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..15 RFU Table 59: TX Data rate table 1172 1173 TXPower Configuration (EIRP) 0 MaxEIRP 1 MaxEIRP – 2dB 2 MaxEIRP – 4dB 3 MaxEIRP – 6dB 4 MaxEIRP – 8dB 5 MaxEIRP – 10dB 6 MaxEIRP – 12dB 7 MaxEIRP – 14dB 8..15 RFU Table 60: TX power table 1174 1175