Standard range for Signal Strength & Quality

[sendyramen]

The best way is to do drive test with a phone locked on the specfic band.
I do not have work on experience on 5G.
But in 4G, if you have 3 LTE bands, do drive test with phone lock on each band and perform DL on different radio conditions.

For example this graph is RSRP per band vs throughput:

Do the same for 5G and graph it, you will get the limits of the band.