Issue link: https://read.uberflip.com/i/1479525
LoRaWAN® Regional Parameters RP002-1.0.4 ©2022 LoRa Alliance ® Page 69 of 101 The authors reserve the right to change specifications without notice. When the device is using the Adaptive Data Rate mode and transmits using the DRcurrent 1371 data rate, the following table defines the next data rate (DRnext) the end-device SHALL use 1372 during data rate back-off: 1373 UplinkDwellTime=0 UplinkDwellTime=1 DRcurrent DRnext DRcurrent DRnext 0 NA NA NA 1 0 NA NA 2 1 2 NA 3 2 3 2 4 3 4 3 5 4 5 4 6 5 6 5 7 6 7 6 Table 58: AS923 data rate back-off 1374 The TXPower table indicates power levels relative to the Max EIRP level of the end-device, 1375 as per the following table: 1376 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..14 RFU 15 Defined in [TS001] 31 Table 59: AS923 TXPower 1377 EIRP refers to the Equivalent Isotropically Radiated Power, which is the radiated output power 1378 referenced to an isotropic antenna radiating power equally in all directions and whose gain is 1379 expressed in dBi. 1380 By default, the Max EIRP of the end-device SHALL be 16 dBm. The Max EIRP of the end- 1381 device can be modified by the Network Server through the TxParamSetupReq MAC 1382 command and SHOULD be used by both the end-device and the Network Server as shown in 1383 Table 59 once TxParamSetupReq is acknowledged by the end-device via 1384 TxParamSetupAns. 1385 2.10.4 AS923 Join-Accept CFList 1386 The AS923 LoRaWAN implements an OPTIONAL CFList of 16 octets in the Join-Accept 1387 message for both CFListType 0 and CFListType 1. When receiving a CFListType 1, it 1388 shall be interpreted according to the channel list definition in Section 2.3.2.2 (900 MHz Fixed 1389 Channel List Definition). 1390 AS923_FREQ_OFFSET does not apply any frequencies delivered to the end-device from the 1391 Network Server through MAC commands or the CFList. Therefore, AS923 end-devices 1392 SHALL NOT apply AS923_FREQ_OFFSET to the channel frequencies defined in the CFList. 1393