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LoRaWAN® Regional Parameters v1.0.3revA

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LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 58 of 71 The authors reserve the right to change specifications without notice. 2.10 IN865-867 MHz ISM Band 1401 2.10.1 IN865-867 Preamble Format 1402 The following synchronization words SHOULD be used: 1403 1404 Modulation Sync word Preamble length LORA 0x34 8 symbols GFSK 0xC194C1 5 bytes Table 67: IN865-867 synch words 1405 2.10.2 IN865-867 ISM Band channel frequencies 1406 This section applies to the Indian sub-continent. 1407 The network channels can be freely attributed by the network operator. However the three 1408 following default channels MUST be implemented in every India 865-867MHz end-device. 1409 Those channels are the minimum set that all network gateways SHOULD always be listening 1410 on. 1411 1412 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 68: IN865-867 default channels 1413 End-devices SHALL be capable of operating in the 865 to 867 MHz frequency band and 1414 should feature a channel data structure to store the parameters of at least 16 channels. A 1415 channel data structure corresponds to a frequency and a set of data rates usable on this 1416 frequency. 1417 The first three channels correspond to 865.0625, 865.4025, and 865.985 MHz / DR0 to DR5 1418 and MUST be implemented in every end-device. Those default channels cannot be modified 1419 through the NewChannelReq command and guarantee a minimal common channel set 1420 between end-devices and network gateways. 1421 The following table gives the list of frequencies that SHALL be used by end-devices to 1422 broadcast the JoinReq message. The JoinReq message transmit duty-cycle SHALL follow the 1423 rules described in chapter "Retransmissions back-off" of the LoRaWAN specification 1424 document. 1425 1426 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 69: IN865-867 JoinReq Channel List 1427 2.10.3 IN865-867 Data Rate and End-device Output Power Encoding 1428 There is no dwell time or duty-cycle limitation for the INDIA 865-867 PHY layer. The 1429 TxParamSetupReq MAC command is not implemented by INDIA 865-867 devices. 1430 The following encoding is used for Data Rate (DR) and End-device Output Power (TXPower) 1431 in the INDIA 865-867 band: 1432

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