I am using JN5168 for my zigbee mesh network(54 nodes all working as FFD), In that we have support for the LQI measurement. while comparing my PER(Received packets/sent packets) i got some surprising results and that doesn't add up.
I have studied IEEE802.15.4-2003 and did some research and came to know that " there is no exact formula that calculates the LQI, therefore LQI is implementation specific"
Can anybody explain what formula or algorithm is used behind the LQI measurement in JN5168 Or NXP standard.
Or is there any file in zigbee stack i need to look into??