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Advanced 5G Link Budget

Professional 3GPP TR 38.901 compliant link budget.

5G NR Link Budget Calculator

3GPP TR 38.901 | TS 38.104 | TS 38.214

Professional Tool

5G NR Link Budget Calculator

3GPP TR 38.901 | TS 38.104 | TS 38.214

快速场景

📡 Cell Radius

182m

🗺️ Coverage

0.10 km²

⬇️ DL MAPL

141.8dB

⬆️ UL MAPL

118.1dB

🚀 Edge DL

404Mbps

⚠️ Limitation

Uplink

📶 Network & Band

FR13.55 GHz100 MHz30 kHz SCS

🗼 Equipment, UE & Margins

Coverage Visualization

Uplink Limited
DL: 182m
Cell: 182m
UL: 136m

⬇️ Downlink Budget

EIRP82.0 dBm
Sensitivity-86.8 dBm
Total Losses27.0 dB
DL MAPL141.8 dB

⬆️ Uplink Budget

UE EIRP23.0 dBm
Sensitivity-89.1 dBm
Total Losses27.0 dB
UL MAPL118.1 dB

🚀 Cell-Edge Throughput Estimate

Edge CQI

CQI 6

Est. DL Throughput

404.5 Mbps

Bandwidth

100 MHz

Scenario

UMa

📚 3GPP References

TR 38.901

Channel model: Path loss, shadow fading, penetration loss

TS 38.104

BS radio transmission/reception: Power classes, NRB tables

TS 38.101

UE radio transmission/reception: Power classes, NF

TS 38.214

Physical layer procedures: MCS tables, spectral efficiency

TS 38.211

Physical channels: Numerology, SCS, resource grid

链路预算瀑布图

下行 (DL) — MAPL: 141.8 dB

gNB 发射功率
+49.0
天线增益
+25.0
波束赋形增益
+8.0
EIRP
+82.0
热噪声
-94.0
噪声系数 (NF)
+7.0
最低 SINR
+0.2
接收灵敏度
-86.8
建筑穿透损耗
-20.0
阴影衰落余量
-7.0

上行 (UL) — MAPL: 118.1 dB

gNB 发射功率
+23.0
天线增益
+0.0
波束赋形增益
+8.0
EIRP
+56.0
热噪声
-94.0
噪声系数 (NF)
+2.5
最低 SINR
+2.4
接收灵敏度
-89.1
建筑穿透损耗
-20.0
阴影衰落余量
-7.0
增益 损耗 合计

计算结果

DL MAPL141.80dB
UL MAPL118.10dB
限制链路UL
小区半径181.9m
覆盖面积0.1040km²
边缘 CQI6
边缘吞吐量估算404.5Mbps

计算公式与标准

DL: EIRP = TxPower + AntennaGain + BF_Gain

Sensitivity = -174 + 10*log10(BW) + NF + SINR_min

MAPL = EIRP - Sensitivity - BuildingLoss - ShadowMargin

d = 10^((MAPL - 28 - 20*log10(fc_GHz)) / (10*n))

本工具基于 3GPP TR 38.901 传播模型，支持 UMa/UMi/InH/RMa 四种场景。 路径损耗指数 n 分别为 3.5/3.0/2.0/2.8。边缘吞吐量通过边缘 SINR 映射到 CQI 并乘以频谱效率、带宽和 MIMO 层数估算。