Module 10
AI Equation & Assumption Checker
Validates FSPL constants, unit consistency, rain, gas, TDD, bandwidth overhead and radius sanity.
FSPL constant
20·log10(4π/c) = 32.44 with f in MHz, d in km
Rain loss units
ITU-R P.838 dB/km × path length km
TDD DL/UL ratio
80/20 assumed; sanity vs. video-heavy demand
Bandwidth overhead
12% control channel + guard subtracted
Cell radius (28 GHz)
≤ 250 m at ρ=20 mm/h rain
Molecular absorption (140 GHz)
Add 8 dB/km O2 window
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