Link Budget of Base Station Subsystem calculation II

We already showed the parameters for link budget so let see example: 
General Character of Position  
Character of position that we install Base Station

-          Antenna Type: APX906515L-T0-0

-          Antenna height: 26m

-          Region: urban

-          Feeder Type: HFC22D(A)LS Cable 2006

-          Feeder loss: 3.71dB per 100m

-          Feeder length: 46m

Transmiting Power Mobile Station 
Class 4 (Hand held): Pt(W) =2W  Pt (dBm) =10*log(2/10^-3) = 33dBm 
Transmitting Power Base Station
Class 5: Pt(W) = 20W គឺ Pt (dBm) =10*log(20/10^-3) = 43dBm 
Mobile sensitivity
            MS sensitivity = 10*Log(KTB) + E_c/N_o+ NF 
K coeffient ​Boltzmann (1.38 x 10^-23J/K^o) 
T temperature (300 K^o)
B equivalent noise bandwidth (200 KHz)
E_c/N_o intrinsic characteristic of the modulator (8 dB)
NF noise figure of receive (10 dB) 
MS sensitivity = [10* Log(1.38 x 10^-23 x 300 x 200/10^-3)+30] + 8 + 10

      = -120dBm + 8dB + 10dB

      = -102dBm

BTS sensivity 
BTS sensitivity = -110dBm (BTS characteristic)  

Please see below table:

Above result Uplink-Downlink imbalance 0.69dB we can conclude Uplink path loss bigger than Downlink path loss so Mobile Station domain is larger than Base Station domain. In case it can be caused the issue of mobile coverage (no service coverage). 

See alsoLink Budget of Base Station Subsystem calculation Iand next post GSM Network Coverage I