User's Manual

Table Of Contents
Designing a Fusion Wideband Solution
Page 92 InterReach Fusion Wideband Installation, Operation, and Reference Manual
© 2015 TE Connectivity D-620616-0-20 Rev K TECP-77-044 Issue 9 March 2015
Narrowband Link Budget Analysis for a Microcell Application
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 sign
al, which has a bandwidth
of 30 kHz
p = f – j – n
Table 82.
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% ed
ge 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