📡 PRACH Power Control · TS 38.213

3GPP Compliant · Clause 7.4.1 · PRACH Power Control

TS 38.213 Clause 7.4.1: PRACH transmission power is determined by P_PRACH = min(P_CMAX, PREAMBLE_RECEIVED_TARGET_POWER + PL) where PREAMBLE_RECEIVED_TARGET_POWER = preambleInitialReceivedTargetPower + DELTA_PREAMBLE + (PREAMBLE_TRANSMISSION_COUNTER - 1) * powerRampingStep

P_CMAX (Max Power)

Preamble Format

Initial Target Power

Power Ramping Step

Path Loss (PL)

Max Retransmissions

P_CMAX: 23 dBm · PL: 44 dB · Format: 0 ✓ TS 38.213

● Ready

📐 PRACH Power Calculation

Formula: P_PRACH = min(P_CMAX, PREAMBLE_RECEIVED_TARGET_POWER + PL)

PREAMBLE_RECEIVED_TARGET_POWER =

P_CMAX: 23 dBm | PREAMBLE_RECEIVED_TARGET_POWER: -90 dBm | PL: 44 dB

P_PRACH = — dBm

PREAMBLE_RECEIVED_TARGET_POWER: -90 dBm

DELTA_PREAMBLE: 0 dB

Power Ramping: 0 dB

P_PRACH: -46 dBm

Power Headroom: 69 dB

Transmission #: 1

📊 Power Ramping Visualization

PRACH power increases by powerRampingStep for each retransmission

📋 Step-by-Step Log

Each PRACH transmission attempt with calculated power

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