As you see, this is not the direct measurement, it is a kind of derived value from RSRP and RSSI. Reference signal receive quality (RSRQ):Although RSRP is an important measure, on its own it gives no indication of signal quality. RSRQ is defined as (N x RSRP)/RSSI, where N is the number of RBs over the measurement bandwidth. For quality of the signal information another parameter called ‘RSSQ’ is used in some case. RSRP gives us the signal strength of the desired signal, not the quality of the signal. But it does not gives any information about signal quality. RSRP is the linear average of all the red part power.Since this measures only the reference power, we can say this is the strength of the wanted signal. The red part is the resource elements in which reference signal is being transmitted. Following is an example of one downlink radio frame.

This measurement is used in RRC Idle/Connected, Cell Re selection/Selection, handover scenarios. Its typical range is around -44 to -130dbm. RSRP(Reference Signal Received Power):-RSRP (Reference Signal Receive Power) is the average power of Resource Elements (RE) that carry cell specific Reference Signals (RS) over the entire bandwidth, so RSRP is only measured in the symbols carrying RS.

Rsrp lte