Hi,
I’m trying to understand the content of LoRa packets received on my GW (before they are forwarded to a NW server). I simply want to understand the packet format in order to be able to optimize some stuff.
The data is structured on this format:
“gateway ID”,“node MAC”,“UTC timestamp”,“us count”,“frequency”,“RF chain”,“RX chain”,“status”,“size”,“modulation”,“bandwidth”,“datarate”,“coderate”,“RSSI”,“SNR”,“payload”
An example packet could look like this:
“AA555A0000000101”,"",“2018-05-06 19:32:15.430Z”,2059465484, 867500000,0, 5,“CRC_BAD”, 64,“LORA”,125000,“SF7” ,“4/5”,-121,-11.5,“FEE0647E-EEAD8513-F58AE125-494847C3-B7592387-A12D74E6-B3D1D248-08288A50-42194348-DB9D520F-0BB47112-DD9FDCFC-2B603142-12D2284E-6ACB2418-F634D971”
Pretty straight forward, but I wonder if someone knows if the following data could be extracted somehow:
- Network ID
- Sender (the MAC is not present in any packet so I don’t know who it’s from)
- Any kind of retransmission flag
All this information would be useful when I troubleshoot my network.
EDIT:
Found an online packet decoder at https://lorawan-packet-decoder-0ta6puiniaut.runkit.sh. It takes most of the payloads and I’m able to read out DevEUI and AppEUI along with the packet type. However, I still can’t see if it’s a retransmission and I don’t see the NW ID.