21.2 Revision 1.0.1

1.  Clarified the RX window start time definition
2.  Corrected the maximum payload size for DR2 in the NA section
3.  Corrected the typo on the downlink data rate range in 7.2.2
4.  Introduced a requirement for using coding rate 4/5 in 7.2.2 to guarantee a maximum
5. time on air < 400mSec
6.  Corrected the JoinAccept MIC calculation in 6.2.5
7.  Clarified the NbRep field and renamed it to NbTrans in 5.2
8.  Removed the possibility to not encrypt the Applicative payload in the MAC layer ,
9. removed the paragraph 4.3.3.2. If further security is required by the application , the
10. payload will be encrypted, using any method, at the application layer then re-
11. encrypted at the MAC layer using the specified default LoRaWAN encryption
12.  Corrected FHDR field size typo
13.  Corrected the channels impacted by ChMask when chMaskCntl equals 6 or 7 in
14. 7.2.5
15.  Clarified 6.2.5 sentence describing the RX1 slot data rate offset in the JoinResp
16. message
17.  Removed the second half of the DRoffset table in 7.2.7 , as DR>4 will never be used
18. for uplinks by definition
19.  Removed explicit duty cycle limitation implementation in the EU868Mhz ISM band
20. (chapter7.1)
21.  Made the RXtimingSetupAns and RXParamSetupAns sticky MAC commands to
22. avoid end-device‘s hidden state problem. (in 5.4 and 5.7)
23.  Added a frequency plan for the Chinese 470-510MHz metering band
24.  Added a frequency plan for the Australian 915-928MHz ISM band