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Regarding RSSI and LQI in Design Notes
I have some questions regarding RSSI and LQI, here is the design notes:
There are four to five "extreme cases" that can be used to illustrate how RSSI and LQI work: 1. A weak signal in the presence of noise may give low RSSI and high LQI. 2. A weak signal in "total" absence of noise may give low RSSI and low LQI. 3. Strong noise (usually coming from an interferer) may give high RSSI and high LQI. 4. A strong signal without much noise may give high RSSI and low LQI. 5. A very strong signal that causes the receiver to saturate may give high RSSI and high LQI.
Regarding 1: weak signal with noise should indicate bad wireless environment, right? Why giving a high LQI?
Regarding 3 : Strong noise (usually coming from an interferer) may give high RSSI and high LQI. So high interference should point to a low LQI, but why high LQI?
Regarding 4 :A strong signal without much noise may give high RSSI and low LQI. Strong signal without noise should indicate easy receiving, why low LQI?
Can you explain those reasons behind it?
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