User's Manual Part 1

Link Budget Analysis
InterReach Fusion Wideband Installation, Operation, and Reference Manual Page 91
D-620616-0-20 Rev H • TECP-77-044 Issue 7 • May 2013 © 2013 TE Connectivity Ltd.
NarrowbandLinkBudgetAnalysisforaMicrocellApplicat ion
• c=a+b
• f
=c+d+e
• j
=g+h+i
• n
=k+l+m
• k:in
thisexample,krepresentsthethermalnoiseforaTDMAsignal,whichhasabandwidth
of30kHz
• p=f–j–n
Table77.
NarrowbandLinkBudgetAnalysis:Downlink
Line Downlink
Transmitter
a. BTS transmit power per carrier (dBm) 33
b. Attenuation between BTS and Fusion Wideband (dB) –23
c. Power into Fusion Wideband (dBm) 10
d. Fusion Wideband gain (dB) 0
e. Antenna gain (dBi) 3
f. Radiated power per carrier (dBm)
13
Airlink
g. Multipath fade margin (dB) 6
h. Log-normal fade margin with 9 dB std.
deviation, 95% area
coverage, 87% edge coverage
10
i. Body loss (dB) 3
j. Airlink losses (not including facility path
loss) 19
Receiver
k. Thermal noise (dBm/30 kHz) –129
l. Mobile noise figure (dB) 7
m. Required C/I ratio (dB) 17
n. Minimum received signal (dBm)
–105
p. Maximum path loss (dB) +99