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| | '''RSRQ''' – Reference Signal Received Quality: Quality considering also RSSI and the number of used Resource Blocks (N) RSRQ = (N * RSRP) / RSSI measured over the same bandwidth. RSRQ is a C/I type of measurement and it indicates the quality of the received reference signal. The RSRQ measurement provides additional information when RSRP is not sufficient to make a reliable handover or cell reselection decision. | | '''RSRQ''' – Reference Signal Received Quality: Quality considering also RSSI and the number of used Resource Blocks (N) RSRQ = (N * RSRP) / RSSI measured over the same bandwidth. RSRQ is a C/I type of measurement and it indicates the quality of the received reference signal. The RSRQ measurement provides additional information when RSRP is not sufficient to make a reliable handover or cell reselection decision. |
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| − | You can find more information on '''RSRP''' and '''RSRQ''' values in the [[Mobile Signal Strength Recommendations#4G_.28LTE.29|4G (LTE)]] section of the [[Mobile Signal Strength Recommendations]] page.
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| − | {| class="wikitable"
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| − | |+ style="text-align: left;" | RSRP
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| − | ! style="width: 200px; background: black; color: white;" | RSRP
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| − | ! style="width: 200px; background: black; color: white;" | Signal strength
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| − | ! style="width: 950px; background: black; color: white;" | Description
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| − | |-
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| − | ! style="text-align: left; background: #6ACE61;" | >= -80 dBm
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| − | | style="text-align: left; background: #6ACE61;" | '''Excellent'''
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| − | | style="text-align: left; background: #6ACE61;" | Strong signal with maximum data speeds
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| − | |-
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| − | ! style="text-align: left; background: #FBFB43;" | -80 dBm to -90 dBm
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| − | | style="text-align: left; background: #FBFB43;" | '''Good'''
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| − | | style="text-align: left; background: #FBFB43;" | Strong signal with good data speeds
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| − | |-
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| − | ! style="text-align: left; background: #F7BA30;" | -90 dBm to -100 dBm
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| − | | style="text-align: left; background: #F7BA30;" | '''Fair to poor'''
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| − | | style="text-align: left; background: #F7BA30;" | Reliable data speeds may be attained, but marginal data with drop-outs is possible. When this value gets close to -100, performance will drop drastically
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| − | |-
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| − | ! style="text-align: left; background: #EC031D;" | <= -100 dBm
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| − | | style="text-align: left; background: #EC031D;" | '''No signal'''
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| − | | style="text-align: left; background: #EC031D;" | Disnonnection
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| − | |-
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| − | |}
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| − | {| class="wikitable"
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| − | |+ style="text-align: left;" | RSRQ
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| − | ! style="width: 200px; background: black; color: white;" | RSRQ
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| − | ! style="width: 200px; background: black; color: white;" | Signal quality
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| − | ! style="width: 950px; background: black; color: white;" | Description
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| − | |-
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| − | ! style="text-align: left; background: #6ACE61;" | >= -10 dB
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| − | | style="text-align: left; background: #6ACE61;" | '''Excellent'''
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| − | | style="text-align: left; background: #6ACE61;" | Strong signal with maximum data speeds
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| − | |-
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| − | ! style="text-align: left; background: #FBFB43;" | -10 dB to -15 dB
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| − | | style="text-align: left; background: #FBFB43;" | '''Good'''
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| − | | style="text-align: left; background: #FBFB43;" | Strong signal with good data speeds
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| − | |-
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| − | ! style="text-align: left; background: #F7BA30;" | -15 dB to -20 dB
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| − | | style="text-align: left; background: #F7BA30;" | '''Fair to poor'''
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| − | | style="text-align: left; background: #F7BA30;" | Reliable data speeds may be attained, but marginal data with drop-outs is possible. When this value gets close to -20, performance will drop drastically
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| − | |-
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| − | ! style="text-align: left; background: #EC031D;" | <= -20 dB
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| − | | style="text-align: left; background: #EC031D;" | '''No signal'''
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| − | | style="text-align: left; background: #EC031D;" | Disconnection
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| − | |-
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| − | |}
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Reference Signals Received Power (RSRP) and Reference Signal Received Quality (RSRQ) are key measures of signal level and quality for modern LTE networks. In cellular networks, when a mobile device moves from cell to cell and performs cell selection/reselection and handover, it has to measure the signal strength/quality of the neighbor cells. In the procedure of handover, the LTE specification provides the flexibility of using RSRP, RSRQ, or both.
RSRP – Reference Signal Received Power is an RSSI type of measurement. It is the power of the LTE Reference Signals spread over the full bandwidth and narrowband. A minimum of -20 dB SINR (of the S-Synch channel) is needed to detect RSRP/RSRQ.
RSRQ – Reference Signal Received Quality: Quality considering also RSSI and the number of used Resource Blocks (N) RSRQ = (N * RSRP) / RSSI measured over the same bandwidth. RSRQ is a C/I type of measurement and it indicates the quality of the received reference signal. The RSRQ measurement provides additional information when RSRP is not sufficient to make a reliable handover or cell reselection decision.
