Issue link: https://read.uberflip.com/i/1428362
LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 48 of 55 The authors reserve the right to change specifications without notice. 2.9 India 865-867 MHz ISM Band 1256 2.9.1 INDIA 865-867 Preamble Format 1257 The following synchronization words should be used: 1258 1259 Modulation Sync word Preamble length LORA 0x34 8 symbols GFSK 0xC194C1 5 bytes Table 66: India 865-867 synch words 1260 2.9.2 INDIA 865-867 ISM Band channel frequencies 1261 This section applies to the Indian sub-continent. 1262 The network channels can be freely attributed by the network operator. However the three 1263 following default channels must be implemented in every India 865-867MHz end-device. 1264 Those channels are the minimum set that all network gateways should always be listening 1265 on. 1266 1267 Modulation Bandwidth [kHz] Channel Frequency [MHz] FSK Bitrate or LoRa DR / Bitrate Nb Channels LoRa 125 865.0625 865.4025 865.985 DR0 to DR5 / 0.3-5 kbps 3 Table 67: INDIA 865-867 default channels 1268 End-devices should be capable of operating in the 865 to 867 MHz frequency band and 1269 should feature a channel data structure to store the parameters of at least 16 channels. A 1270 channel data structure corresponds to a frequency and a set of data rates usable on this 1271 frequency. 1272 The first three channels correspond to 865.0625, 865.4025, and 865.985 MHz / DR0 to DR5 1273 and must be implemented in every end-device. Those default channels cannot be modified 1274 through the NewChannelReq command and guarantee a minimal common channel set 1275 between end-devices and network gateways. 1276 The following table gives the list of frequencies that should be used by end-devices to 1277 broadcast the JoinReq message. The JoinReq message transmit duty-cycle shall follow the 1278 rules described in chapter "Retransmissions back-off" of the LoRaWAN specification 1279 document. 1280 1281 Modulation Bandwidth [kHz] Channel Frequency [MHz] FSK Bitrate or LoRa DR / Bitrate Nb Channels LoRa 125 865.0625 865.4025 865.9850 DR0 – DR5 / 0.3-5 kbps 3 Table 68: INDIA 865-867 JoinReq Channel List 1282 2.9.3 INDIA 865-867 Data Rate and End-device Output Power Encoding 1283 There is no dwell time or duty-cycle limitation for the INDIA 865-867 PHY layer. The 1284 TxParamSetupReq MAC command is not implemented by INDIA 865-867 devices. 1285