LoRaWAN® Regional Parameters v1.0.3revA

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LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 66 of 71 The authors reserve the right to change specifications without notice. In this case the CFList is a list of five channel frequencies for the channels two to six whereby 1569 each frequency is encoded as a 24 bits unsigned integer (three octets). All these channels are 1570 usable for DR0 to DR5 125kHz LoRa modulation. The list of frequencies is followed by a single 1571 CFListType octet for a total of 16 octets. The CFListType SHALL be equal to zero (0) to 1572 indicate that the CFList contains a list of frequencies. 1573 1574 Size (bytes) 3 3 3 3 3 1 CFList Freq Ch2 Freq Ch3 Freq Ch4 Freq Ch5 Freq Ch6 CFListType The actual channel frequency in Hz is 100 x frequency whereby values representing 1575 frequencies below 100 MHz are reserved for future use. This allows setting the frequency of 1576 a channel anywhere between 100 MHz to 1.67 GHz in 100 Hz steps. Unused channels have 1577 a frequency value of 0. The CFList is optional and its presence can be detected by the length 1578 of the join-accept message. If present, the CFList replaces all the previous channels stored 1579 in the end-device apart from the two default channels. The newly defined channels are 1580 immediately enabled and usable by the end-device for communication. 1581 2.11.5 RU864-870 LinkAdrReq command 1582 The RU864-870 LoRaWAN only supports a maximum of 16 channels. When ChMaskCntl 1583 field is 0 the ChMask field individually enables/disables each of the 16 channels. 1584 1585 ChMaskCntl ChMask applies to 0 Channels 0 to 15 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 80: RU864-870 ChMaskCntl value table 1586 If the ChMaskCntl field value is one of values meaning RFU, the end-device SHOULD reject 1587 the command and unset the "Channel mask ACK" bit in its response. 1588 2.11.6 RU864-870 Maximum payload size 1589 The maximum MACPayload size length (M) is given by the following table. It is derived from 1590 limitation of the PHY layer depending on the effective modulation rate used taking into account 1591 a possible repeater encapsulation layer. The maximum application payload length in the 1592 absence of the optional FOpt control field (N) is also given for information only. The value of 1593 N might be smaller if the FOpt field is not empty: 1594 1595 DataRate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 230 222 5 230 222 6 230 222

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