![]() Let’s assume that all RE powers are same like Rx Power (RSRP). Power in each subcarrier: 20000mW / 1200 = 16.66mW (milliWatt)īased on calculation, transmission power for each Resource Element is 16.66mW. 100 PRB and 1200 subcarriers are exist in 20Mhz). N: number of PRB in certain bandwidth (e.g. RSRP (Rx) = Reference Signal Received Power: average received power of reference signal which is carried on Resource Element (RE). RSSI = Received Signal Strength Indication: total received power in the certain bandwidth including traffic channel power, control channel power, thermal noise and etc… In this example we will see theoretical calculation of RSRQ: Regarding to the negative value of RSRQ, then let’s have a look following basic calculation: RSRQ value might be used for some scenarios such as cell selection, cell reselection and handover. But, how do we see the RSRQ value as negative in drive-test tools and why do we need RSRQ ? Here the “received signal” is reference signal (RSRP). Reference Signal Received Quality or with abbreviated version RSRQ is quality of the received signal.
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