Difference between revisions of "Mobile Signal Strength Recommendations"

From Teltonika Networks Wiki
Line 98: Line 98:
 
{| class="wikitable"
 
{| class="wikitable"
 
|+ style="text-align: left;" | RSRP
 
|+ style="text-align: left;" | RSRP
! style="width: 500px; background: black; color: white;" | RSSI
+
! style="width: 500px; background: black; color: white;" | RSRP
 
! style="width: 500px; background: black; color: white;" | Signal strength
 
! style="width: 500px; background: black; color: white;" | Signal strength
 
|-
 
|-
Line 111: Line 111:
 
|-
 
|-
 
! style="text-align: left; background: #EC031D;" | <= -100 dBm  
 
! style="text-align: left; background: #EC031D;" | <= -100 dBm  
 +
| style="text-align: left; background: #EC031D;" | '''No signal'''
 +
|-
 +
|}
 +
 +
{| class="wikitable"
 +
|+ style="text-align: left;" | RSRQ
 +
! style="width: 500px; background: black; color: white;" | RSSI
 +
! style="width: 500px; background: black; color: white;" | Signal strength
 +
|-
 +
! style="text-align: left; background: #6ACE61;" | >= -10 dB
 +
| style="text-align: left; background: #6ACE61;" | '''Excellent'''
 +
|-
 +
! style="text-align: left; background: #FBFB43;" | -10 dB to -15 dB
 +
| style="text-align: left; background: #FBFB43;" | '''Good'''
 +
|-
 +
! 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: #EC031D;" | <= -20 dB
 +
| style="text-align: left; background: #EC031D;" | '''No signal'''
 +
|-
 +
|}
 +
 +
{| class="wikitable"
 +
|+ style="text-align: left;" | SINR
 +
! style="width: 500px; background: black; color: white;" | SINR
 +
! style="width: 500px; background: black; color: white;" | Signal strength
 +
|-
 +
! style="text-align: left; background: #6ACE61;" | >= 20 dB
 +
| style="text-align: left; background: #6ACE61;" | '''Excellent'''
 +
|-
 +
! style="text-align: left; background: #FBFB43;" | 13 dB to 20 dB
 +
| style="text-align: left; background: #FBFB43;" | '''Good'''
 +
|-
 +
! 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: #EC031D;" | <= 0 dB
 
| style="text-align: left; background: #EC031D;" | '''No signal'''  
 
| style="text-align: left; background: #EC031D;" | '''No signal'''  
 
|-
 
|-
 
|}
 
|}

Revision as of 08:44, 29 September 2017

Main Page > FAQ > Networking > Mobile Signal Strength Recommendations

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
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
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
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
RSRP Signal strength
>= -80 dBm Excellent
-80 dBm to -90 dBm Good
-90 dBm to -100 dBm Fair to poor
<= -100 dBm No signal
RSRQ
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
SINR Signal strength
>= 20 dB Excellent
13 dB to 20 dB Good
0 dB to 13 dB Fair to poor
<= 0 dB No signal