The RSRP (Reference Signal Received Power) values reported in the example project "NR Downlink Transmit-End Beam Refinement Using CSI-RS" are indeed not within the typical range specified by 3GPP for valid RSRP measurements, which is typically between -140 dBm and -44 dBm for 5G NR networks.
It is important to note that the RSRP reported in this example project may not be a direct measurement of the received signal power, but rather an estimate based on the received signal characteristics. Additionally, the RSRP values reported in this project may be scaled for the purposes of the example or to match the needs of the specific measurement.
A value of 40 dBm for RSRP is extremely high and not realistic for typical 5G NR deployments. A value of -1 dBm for RSRP is a more typical range for 5G NR networks.
In general, higher RSRP values indicate a stronger received signal, which can be an indication of a better channel quality. However, other factors such as interference, noise, and signal fading can also impact the overall channel quality, even if the RSRP is high.
