Issue link: https://read.uberflip.com/i/1428362
LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 28 of 55 The authors reserve the right to change specifications without notice. JOIN_ACCEPT_DELAY2 6 s 745 MAX_FCNT_GAP 16384 746 ADR_ACK_LIMIT 64 747 ADR_ACK_DELAY 32 748 ACK_TIMEOUT 2 +/- 1 s (random delay between 1 and 3 seconds) 749 750 If the actual parameter values implemented in the end-device are different from those default 751 values (for example the end-device uses a longer RECEIVE_DELAY1 & 2 latency) , those 752 parameters must be communicated to the network server using an out-of-band channel 753 during the end-device commissioning process. The network server may not accept 754 parameters different from those default values. 755 756 2.5 Australia 915-928MHz ISM Band 757 2.5.1 AU915-928 Preamble Format 758 The following synchronization words should be used: 759 760 Modulation Sync word Preamble length LORA 0x34 8 symbols LoRaWAN does not make use of GFSK modulation in the AU915-928 ISM band. 761 2.5.2 AU915-928 Channel Frequencies 762 The AU ISM Band shall be divided into the following channel plans. 763 Upstream – 64 channels numbered 0 to 63 utilizing LoRa 125 kHz BW varying from 764 DR0 to DR5, using coding rate 4/5, starting at 915.2 MHz and incrementing linearly 765 by 200 kHz to 927.8 MHz 766 Upstream – 8 channels numbered 64 to 71 utilizing LoRa 500 kHz BW at DR6 767 starting at 915.9 MHz and incrementing linearly by 1.6 MHz to 927.1 MHz 768 Downstream – 8 channels numbered 0 to 7 utilizing LoRa 500 kHz BW at DR8 to 769 DR13) starting at 923.3 MHz and incrementing linearly by 600 kHz to 927.5 MHz 770 771 772 Figure 2: AU915-928 channel frequencies 773 AU ISM band end-devices may use a maximum EIRP of +30 dBm. 774 AU915-928 end-devices should be capable of operating in the 915 to 928 MHz frequency 775 band and should feature a channel data structure to store the parameters of 72 channels. A 776 channel data structure corresponds to a frequency and a set of data rates usable on this 777 frequency. 778 If using the over-the-air activation procedure, the end-device should broadcast the JoinReq 779 message alternatively on a random 125 kHz channel amongst the 64 channels defined using 780