Why does UE power matter?
Without it, 5G wouldn’t work.
Devices need power classes to transmit efficiently.
Higher power boosts coverage but drains batteries fast.
FR1 power levels vary.
Some use 3 dBm for limited bands.
Others push 29 dBm for mid-band reach.
Most sit at 23–26 dBm, balancing range and efficiency.
FR2 demands more power.
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TRP reaches 35 dBm in some cases.
EIRP spans from 22 dBm to 55 dBm.
mmWave struggles without aggressive power output.
It all impacts network performance.
Higher power extends range but increases interference.
Battery drain accelerates under peak transmission.
Device thermals limit sustained output.
Optimizing power is critical.
Networks use dynamic power control.
Beamforming sharpens signal directionality.
Small cells lower transmission burdens.
BUT…
More power isn’t always better.
It complicates everything.
Battery depletion worsens.
Network interference escalates.
Thermal limits cap sustained output.
Power control will define 5G’s next leap.
Thanks for reading.
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