Difference between revisions of "Mobile Signal Strength Recommendations"
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This chapter is an overview of recommended signal strength levels for different mobile service modes. | This chapter is an overview of recommended signal strength levels for different mobile service modes. | ||
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==Signal Measurement== | ==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: | 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 |
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==2G (GSM)== | ==2G (GSM)== | ||
− | 2G (GSM) Signal strength is defined by only one value: | + | 2G (GSM) Signal strength is defined by only one value: RSSI – Received Signal Strength Indicator; |
{| class="wikitable" | {| class="wikitable" | ||
− | |+ style="text-align: left;" |RSSI | + | |+ style="text-align: left;" | RSSI |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | RSSI |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | Signal strength |
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|- | |- | ||
− | ! style="text-align: left; background: #6ACE61;" |> | + | ! style="text-align: left; background: #6ACE61;" | > -70 dBm |
− | | style="text-align: left; background: #6ACE61;" |'''Excellent''' | + | | style="text-align: left; background: #6ACE61;" | '''Excellent''' |
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|- | |- | ||
− | ! style="text-align: left; background: #FBFB43;" |-70 dBm to -85 dBm | + | ! style="text-align: left; background: #FBFB43;" | -70 dBm to -85 dBm |
− | | style="text-align: left; background: #FBFB43;" |'''Good''' | + | | style="text-align: left; background: #FBFB43;" | '''Good''' |
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− | ! style="text-align: left; background: #F7BA30;" |-86 dBm to -100 dBm | + | ! style="text-align: left; background: #F7BA30;" | -86 dBm to -100 dBm |
− | | style="text-align: left; background: #F7BA30;" |'''Fair''' | + | | style="text-align: left; background: #F7BA30;" | '''Fair''' |
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− | ! style="text-align: left; background: #EC031D;" |< -100 dBm | + | ! style="text-align: left; background: #EC031D;" | < -100 dBm |
− | | style="text-align: left; background: #EC031D;" |'''Poor''' | + | | style="text-align: left; background: #EC031D;" | '''Poor''' |
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|- | |- | ||
− | ! style="text-align: left; background: #AB0312;" |-110 dBm | + | ! style="text-align: left; background: #AB0312;" | -110 dBm |
− | | style="text-align: left; background: #AB0312;" |'''No signal''' | + | | style="text-align: left; background: #AB0312;" | '''No signal''' |
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|} | |} | ||
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==3G (WCDMA, TDSCDMA, CDMA, EVDO, CDMA-EVDO)== | ==3G (WCDMA, TDSCDMA, CDMA, EVDO, CDMA-EVDO)== | ||
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For 3G service mode, there are three relevant measurements: | 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 |
− | The RSSI standard values for 3G are | + | The RSSI standard values for 3G are the same as 2G |
{| class="wikitable" | {| class="wikitable" | ||
− | |+ style="text-align: left;" |RSSI | + | |+ style="text-align: left;" | RSSI |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | RSSI |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | Signal strength |
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|- | |- | ||
− | ! style="text-align: left; background: #6ACE61;" |> | + | ! style="text-align: left; background: #6ACE61;" | > -70 dBm |
− | | style="text-align: left; background: #6ACE61;" |'''Excellent''' | + | | style="text-align: left; background: #6ACE61;" | '''Excellent''' |
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|- | |- | ||
− | ! style="text-align: left; background: #FBFB43;" |-70 dBm to -85 dBm | + | ! style="text-align: left; background: #FBFB43;" | -70 dBm to -85 dBm |
− | | style="text-align: left; background: #FBFB43;" |'''Good''' | + | | style="text-align: left; background: #FBFB43;" | '''Good''' |
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|- | |- | ||
− | ! style="text-align: left; background: #F7BA30;" |-86 dBm to -100 dBm | + | ! style="text-align: left; background: #F7BA30;" | -86 dBm to -100 dBm |
− | | style="text-align: left; background: #F7BA30;" |'''Fair''' | + | | style="text-align: left; background: #F7BA30;" | '''Fair''' |
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|- | |- | ||
− | ! style="text-align: left; background: #EC031D;" |< -100 dBm | + | ! style="text-align: left; background: #EC031D;" | < -100 dBm |
− | | style="text-align: left; background: #EC031D;" |'''Poor''' | + | | style="text-align: left; background: #EC031D;" | '''Poor''' |
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|- | |- | ||
− | ! style="text-align: left; background: #AB0312;" |-110 dBm | + | ! style="text-align: left; background: #AB0312;" | -110 dBm |
− | | style="text-align: left; background: #AB0312;" |'''No signal''' | + | | style="text-align: left; background: #AB0312;" | '''No signal''' |
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|} | |} | ||
{| class="wikitable" | {| class="wikitable" | ||
− | |+ style="text-align: left;" |EC/IO | + | |+ style="text-align: left;" | EC/IO |
− | ! style="width: | + | ! style="width: 250px; background: black; color: white;" | EC/IO |
− | ! style="width: | + | ! style="width: 250px; background: black; color: white;" | Signal quality |
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|- | |- | ||
− | ! style="text-align: left; background: #6ACE61;" |0 to -6 | + | ! style="text-align: left; background: #6ACE61;" | 0 to -6 |
− | | style="text-align: left; background: #6ACE61;" |'''Excellent''' | + | | style="text-align: left; background: #6ACE61;" | '''Excellent''' |
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− | ! style="text-align: left; background: #FBFB43;" |-7 to -10 | + | ! style="text-align: left; background: #FBFB43;" | -7 to -10 |
− | | style="text-align: left; background: #FBFB43;" |'''Good''' | + | | style="text-align: left; background: #FBFB43;" | '''Good''' |
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|- | |- | ||
− | ! style="text-align: left; background: #EC031D;" |-11 to -20 | + | ! style="text-align: left; background: #EC031D;" | -11 to -20 |
− | | style="text-align: left; background: #EC031D;" |'''Fair to poor''' | + | | style="text-align: left; background: #EC031D;" | '''Fair to poor''' |
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|} | |} | ||
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− | + | ==4G (LTE)== | |
− | + | For 4G service mode, there are three relevant measurements: | |
− | + | *RSSI - indicates the received signal strength | |
− | + | *RSRP - the Reference Signal Received Power is the power of the LTE Reference Signals spread over the full bandwidth and narrowband | |
− | + | *SINR - Signal to Interference plus Noise Ratio (A minimum of -20 dB SINR is needed to detect RSRP/RSRQ) | |
− | + | *RSRQ - Reference Signal Received Quality is a C/I type of measurement and it indicates the quality of the received reference signal | |
− | * | ||
− | * | ||
− | * | ||
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{| class="wikitable" | {| class="wikitable" | ||
− | |+ style="text-align: left;" |RSRP | + | |+ style="text-align: left;" | RSRP |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | RSRP |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | Signal strength |
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|- | |- | ||
− | ! style="text-align: left; background: #6ACE61;" |>= -80 dBm | + | ! style="text-align: left; background: #6ACE61;" | >= -80 dBm |
− | | style="text-align: left; background: #6ACE61;" |'''Excellent''' | + | | style="text-align: left; background: #6ACE61;" | '''Excellent''' |
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|- | |- | ||
− | ! style="text-align: left; background: #FBFB43;" |-80 dBm to -90 dBm | + | ! style="text-align: left; background: #FBFB43;" | -80 dBm to -90 dBm |
− | | style="text-align: left; background: #FBFB43;" |'''Good''' | + | | style="text-align: left; background: #FBFB43;" | '''Good''' |
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! style="text-align: left; background: #F7BA30;" | -90 dBm to -100 dBm | ! style="text-align: left; background: #F7BA30;" | -90 dBm to -100 dBm | ||
− | | style="text-align: left; background: #F7BA30;" |'''Fair to poor''' | + | | style="text-align: left; background: #F7BA30;" | '''Fair to poor''' |
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|- | |- | ||
− | ! style="text-align: left; background: #EC031D;" |<= -100 dBm | + | ! style="text-align: left; background: #EC031D;" | <= -100 dBm |
− | | style="text-align: left; background: #EC031D;" |'''No signal''' | + | | style="text-align: left; background: #EC031D;" | '''No signal''' |
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|} | |} | ||
{| class="wikitable" | {| class="wikitable" | ||
− | |+ style="text-align: left;" |RSRQ | + | |+ style="text-align: left;" | RSRQ |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | RSSI |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | Signal strength |
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− | ! style="text-align: left; background: #6ACE61;" |>= -10 dB | + | ! style="text-align: left; background: #6ACE61;" | >= -10 dB |
− | | style="text-align: left; background: #6ACE61;" |'''Excellent''' | + | | style="text-align: left; background: #6ACE61;" | '''Excellent''' |
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− | ! style="text-align: left; background: #FBFB43;" |-10 dB to -15 dB | + | ! style="text-align: left; background: #FBFB43;" | -10 dB to -15 dB |
− | | style="text-align: left; background: #FBFB43;" |'''Good''' | + | | style="text-align: left; background: #FBFB43;" | '''Good''' |
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− | ! style="text-align: left; background: #F7BA30;" |-15 dB to -20 dB | + | ! style="text-align: left; background: #F7BA30;" | -15 dB to -20 dB |
− | | style="text-align: left; background: #F7BA30;" |'''Fair to poor''' | + | | style="text-align: left; background: #F7BA30;" | '''Fair to poor''' |
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− | ! style="text-align: left; background: #EC031D;" |<= -20 dB | + | ! style="text-align: left; background: #EC031D;" | <= -20 dB |
− | | style="text-align: left; background: #EC031D;" |'''No signal''' | + | | style="text-align: left; background: #EC031D;" | '''No signal''' |
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|} | |} | ||
{| class="wikitable" | {| class="wikitable" | ||
− | |+ style="text-align: left;" |SINR | + | |+ style="text-align: left;" | SINR |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | SINR |
− | ! style="width: | + | ! style="width: 500px; background: black; color: white;" | Signal strength |
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− | ! style="text-align: left; background: #6ACE61;" |>= 20 dB | + | ! style="text-align: left; background: #6ACE61;" | >= 20 dB |
− | | style="text-align: left; background: #6ACE61;" |'''Excellent''' | + | | style="text-align: left; background: #6ACE61;" | '''Excellent''' |
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− | ! style="text-align: left; background: #FBFB43;" |13 dB to 20 dB | + | ! style="text-align: left; background: #FBFB43;" | 13 dB to 20 dB |
− | | style="text-align: left; background: #FBFB43;" |'''Good''' | + | | style="text-align: left; background: #FBFB43;" | '''Good''' |
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− | ! style="text-align: left; background: #F7BA30;" |0 dB to 13 dB | + | ! style="text-align: left; background: #F7BA30;" | 0 dB to 13 dB |
− | | style="text-align: left; background: #F7BA30;" |'''Fair to poor''' | + | | style="text-align: left; background: #F7BA30;" | '''Fair to poor''' |
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− | ! style="text-align: left; background: #EC031D;" |<= 0 dB | + | ! style="text-align: left; background: #EC031D;" | <= 0 dB |
− | | style="text-align: left; background: #EC031D;" |'''No signal''' | + | | style="text-align: left; background: #EC031D;" | '''No signal''' |
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Revision as of 08:44, 29 September 2017
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
The RSSI standard values for 3G are the same as 2G
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 |
EC/IO | Signal quality |
---|---|
0 to -6 | Excellent |
-7 to -10 | Good |
-11 to -20 | Fair to poor |
4G (LTE)
For 4G service mode, there are three relevant measurements:
- RSSI - indicates the received signal strength
- RSRP - the Reference Signal Received Power is the power of the LTE Reference Signals spread over the full bandwidth and narrowband
- SINR - Signal to Interference plus Noise Ratio (A minimum of -20 dB SINR is needed to detect RSRP/RSRQ)
- RSRQ - Reference Signal Received Quality is a C/I type of measurement and it indicates the quality of the received reference signal
RSRP | Signal strength |
---|---|
>= -80 dBm | Excellent |
-80 dBm to -90 dBm | Good |
-90 dBm to -100 dBm | Fair to poor |
<= -100 dBm | No signal |
RSSI | Signal strength |
---|---|
>= -10 dB | Excellent |
-10 dB to -15 dB | Good |
-15 dB to -20 dB | Fair to poor |
<= -20 dB | No signal |
SINR | Signal strength |
---|---|
>= 20 dB | Excellent |
13 dB to 20 dB | Good |
0 dB to 13 dB | Fair to poor |
<= 0 dB | No signal |