Issue link: https://read.uberflip.com/i/1428359
LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 54 of 71 The authors reserve the right to change specifications without notice. KR920-923MHz ISM band end-devices SHALL use the following default parameters 1297 • Default EIRP output power for end-device(920.9~921.9MHz): 10 dBm 1298 • Default EIRP output power for end-device(922.1~923.3MHz): 14 dBm 1299 • Default EIRP output power for gateway: 23 dBm 1300 KR920-923MHz end-devices SHALL be capable of operating in the 920 to 923MHz frequency 1301 band and SHALL feature a channel data structure to store the parameters of at least 16 1302 channels. A channel data structure corresponds to a frequency and a set of data rates usable 1303 on this frequency. 1304 The following table gives the list of frequencies that SHALL be used by end-devices to 1305 broadcast the JoinReq message. 1306 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 59: KR920-923 JoinReq Channel List 1307 2.9.3 KR920-923 Data Rate and End-device Output Power encoding 1308 There is no dwell time limitation for the KR920-923 PHY layer. The TxParamSetupReq MAC 1309 command is not implemented by KR920-923 devices. 1310 The following encoding is used for Data Rate (DR), and EIRP Output Power (TXPower) in the 1311 KR920-923 band: 1312 1313 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 60: KR920-923 TX Data rate table 1314 1315 1316 TXPower Configuration (EIRP) 0 Max EIRP 1 Max EIRP – 2dB 2 Max EIRP – 4dB 3 Max EIRP – 6dB 4 Max EIRP – 8dB 5 Max EIRP – 10dB 6 Max EIRP – 12dB 7 Max EIRP – 14dB 8..15 RFU Table 61: KR920-923 TX power table 1317 1318