| LoRaWAN Header | LoRaWAN payload (37 bytes)                         |
+ ---- + ------- + -------------------------------------------------- +
|      | RuleID  |   W   |  FCN  |   RCS   |      1 tile    | Padding |
|      |   21    |   0   |   1   |         |                | b'00000 |
+ ---- + ------- + ----- + ----- + ------- + -------------- + ------- +
| XXXX | 1 byte  | 1 bit | 1 bit | 4 bytes | 31 bytes+1 bit | 5 bits  |