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LoRaWAN® Regional Parameters v1.0.2rB

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LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 50 of 55 The authors reserve the right to change specifications without notice. channels are usable for DR0 to DR5 125kHz LoRa modulation. The list of frequencies is 1308 followed by a single RFU octet for a total of 16 octets. 1309 1310 Size (bytes) 3 3 3 3 3 1 CFList Freq Ch4 Freq Ch5 Freq Ch6 Freq Ch7 Freq Ch8 RFU The actual channel frequency in Hz is 100 x frequency whereby values representing 1311 frequencies below 100 MHz are reserved for future use. This allows setting the frequency of 1312 a channel anywhere between 100 MHz to 1.67 GHz in 100 Hz steps. Unused channels have 1313 a frequency value of 0. The CFList is optional and its presence can be detected by the 1314 length of the join-accept message. If present, the CFList replaces all the previous channels 1315 stored in the end-device apart from the three default channels. The newly defined channels 1316 are immediately enabled and usable by the end-device for communication. 1317 2.9.5 INDIA 865-867 LinkAdrReq command 1318 The INDIA 865-867 LoRaWAN only supports a maximum of 16 channels. When 1319 ChMaskCntl field is 0 the ChMask field individually enables/disables each of the 16 1320 channels. 1321 1322 ChMaskCntl ChMask applies to 0 Channels 1 to 16 1 RFU .. .. 4 RFU 5 RFU 6 All channels ON The device should enable all currently defined channels independently of the ChMask field value. 7 RFU Table 71: ChMaskCntl value table 1323 If the ChMaskCntl field value is one of values meaning RFU, the end-device should reject 1324 the command and unset the "Channel mask ACK" bit in its response. 1325 2.9.6 INDIA 865-867 Maximum payload size 1326 The maximum MACPayload size length (M) is given by the following table. It is derived from 1327 limitation of the PHY layer depending on the effective modulation rate used taking into 1328 account a possible repeater encapsulation layer. The maximum application payload length in 1329 the absence of the optional FOpt control field (N) is also given for information only. The 1330 value of N might be smaller if the FOpt field is not empty: 1331 1332 DataRate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 230 222 5 230 222 6 230 222 7 230 222 8:15 Not defined

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