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Link Budget Formula
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Parameters to Calculate Link Budget
1)Choosing 2W (33dBm) mobile phone (900MHz grade mark 4th) for planning purpose.2)Choosing 1W (30dBm) mobile phone (1800MHz) for planning purpose.3)The sensitivity of the mobile phone:-101dBm.4)TheBTS receiving sensitivity: -108dBm.5)Building loss for GSM 900: 18dB (Urban), 12dB (village)6)Building loss for GSM 1800: 25dB (Urban), 20dB (village)7)The Combiner loss:2 to 1: 4.5dB; 4 to 1: 8dB.8)The duplexer loss: 0.8dB9)The jumper loss: 1dB.10)The connector loss: 1dB11)Thefeeder (GSM 900) cable loss:4dB/100m12)Thefeeder (DCS 1800) cable loss:8dB/100m13)The diversity gain: 3dB.14)TheShadow fademargin (GSM 900): 8dB (Urban), 5dB (village)15)TheShadow fademargin (DCS 1800): 10dB (Urban), 6dB (village)16)The noise worsen quantity: 2dB
17)The body loss: 3dB.
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