Mobile Signal Strength Recommendations
From Teltonika Networks Wiki
Summary
This chapter is an overview of recommended signal strength levels for different mobile service modes.
Signal Measurement
Signal strength values are defined by a few different measurements which vary even more for different service modes. These measurements are as follows:
- RSSI
- RSRP
- RSRQ
- RSCP
- SINR
- EC/IO
2G (GSM)
2G (GSM) Signal strength is defined by only one value: RSSI – Received Signal Strength Indicator;
RSSI | Signal strength |
---|---|
> -70 dBm | Excellent |
-70 dBm to -85 dBm | Good |
-86 dBm to -100 dBm | Fair |
< -100 dBm | Poor |
-110 dBm | No signal |
3G (WCDMA, TDSCDMA, CDMA, EVDO, CDMA-EVDO)
For 3G service mode, there are three relevant measurements:
- RSSI - indicates the received signal strength
- EC/IO - indicates the downlink carrier-to-interference ratio (signal quality)
- RSCP - indicates the received signal code power
EC/IO | Signal quality |
---|---|
0 to -6 | Excellent |
-7 to -10 | Good |
-11 to -20 | Fair to poor |