In this page we present a simple LTE RSRP & RSRQ calculator. The calculation is performed based on RSSI and channel Bandwidth considered.

The formulas used in within the calculator is below, where:

  • RSRP is the Reference Signal Received Power and is measured in a single RE of the LTE REsource Block. Hence, RSRP is also called as average received power of a single reference signal RE (Resource Element)
  • RSRQ is the Reference Signal Received Quality
  • RSSI is measured over entire bandwidth of occupied RBs (Resource Blocks)
LTE Channel Bandwidth(Enter:1.4/3/5/10/15/20MHz):

RSSI in dBm :

RSRP in dBm (Output#1):

RSRQ in dBm (Output#2):

Physical RBs per channel BW (Output#3):

LTE RSRP and RSRQ CALCULATOR EXAMPLE:

  • Input : BW = 10 MHz , RSSI = -79 dBm
  • Outputs : RSRP (dBm) = -106.78 dBm ; RSRQ (dBm) = -10.79dBm ; PRBs/BW = 50

LTE RSRP and RSRQ CALCULATOR formula or equations

Following equations are used in the calculator:

RSRP=RSSI – 10LOG(12*N)

RSRQ = N*(RSRP/RSSI) or RSRQ = 10LO(N) + RSRP(dBm) – RSSI(dBm)

Where:

  • N = Number of RBs as per Channel Bandwidth
    • N=6 for  1.4 MHz
    • N=15 for 3 MHz
    • N=25 for 5 MHz
    • N=50 for 10MHz
    • N=75 for 15 MHz
    • N=100 for 20MHz
  • RSRP= Average Received Signal Power of a a Singel Resource Element (RE) – In LTE there are 84 RE in a single RB
  • RSRQ=Power measured over the entire BW of occuped RBs

For any further details please refer to:

  1. RSRP and RSRQ Measurement in LTE
  2. RSRQ to SINR Relation

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