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Mobile Signal Strength Recommendations (view source)
Revision as of 09:01, 29 September 2017
, 09:01, 29 September 2017no edit summary
! style="width: 500px; background: black; color: white;" | Signal strength
! style="width: 500px; background: black; color: white;" | Signal strength
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! style="text-align: left; background: #6ACE61;" | > -70 dBm
! 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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*RSCP - indicates the received signal code power
*RSCP - indicates the received signal code power
The RSSI standard values for 3G are the same as 2G
The RSSI standard values for 3G are basically the same as 2G
{| class="wikitable"
{| class="wikitable"
|+ style="text-align: left;" | RSSI
|+ style="text-align: left;" | RSSI
! style="width: 500px; background: black; color: white;" | Signal strength
! style="width: 500px; background: black; color: white;" | Signal strength
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! style="text-align: left; background: #6ACE61;" | > -70 dBm
! 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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*RSSI - indicates the received signal strength
*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
*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)
*SINR - Signal to Interference plus Noise Ratio (A minimum of -20 dB SINR is needed to detect RSRP/RSRQ). Indicates the throughput capacity of the channel. As the name implies, SINR is the strength of the signal divided by
*RSRQ - Reference Signal Received Quality is a C/I type of measurement and it indicates the quality of the received reference signal
the strength of any interference
*RSRQ - Reference Signal Received Quality is a C/I type of measurement and it indicates the quality of the received reference signal (similar to EC/IO)
{| class="wikitable"
{| class="wikitable"
|+ style="text-align: left;" | RSRQ
|+ style="text-align: left;" | RSRQ
! style="width: 500px; background: black; color: white;" | RSSI
! style="width: 500px; background: black; color: white;" | RSSI
! style="width: 500px; background: black; color: white;" | Signal strength
! style="width: 500px; background: black; color: white;" | Signal quality
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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: #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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RSSI for LTE is a calculated from several other signal related measurements: '''RSSI = wideband power = noise + serving cell power + interference power'''. For example, a 4G LTE modem might report an RSSI of -68 dBm, but:
'''RSRP = -102 dBm'''
'''RSRQ = -16 dB'''
'''SNR = -1.8 dB'''
In this case, the signal quality is actually very poor. This could be due to the device being some distance away from the LTE transmitter. It’s also possible that something is interfering with the signal, such as a building or other obstructions between the device and the tower.
{| class="wikitable"
|+ style="text-align: left;" | RSSI
! style="width: 500px; background: black; color: white;" | RSSI
! style="width: 500px; background: black; color: white;" | Signal strength
|-
! style="text-align: left; background: #6ACE61;" | > -65 dBm
| style="text-align: left; background: #6ACE61;" | '''Excellent'''
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! style="text-align: left; background: #FBFB43;" | -65 dBm to -75 dBm
| style="text-align: left; background: #FBFB43;" | '''Good'''
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! style="text-align: left; background: #F7BA30;" | -75 dBm to -85 dBm
| style="text-align: left; background: #F7BA30;" | '''Fair'''
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! style="text-align: left; background: #EC031D;" | -85 dBm to -95 dBm
| style="text-align: left; background: #EC031D;" | '''Poor'''
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! style="text-align: left; background: #AB0312;" | <= -95 dBm
| style="text-align: left; background: #AB0312;" | '''No signal'''
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