Narrowband Link Budget Analysis For A Microcell Application; Table 6-21 Narrowband Link Budget Analysis: Downlink - ADC InterReach Fusion Installation, Operation And Reference Manual

Link Budget Analysis
6.6.2
6-28
CONFIDENTIAL

Narrowband Link Budget Analysis for a Microcell Application

Narrowband Link Budget Analysis: Downlink
Table 6-21
Line Downlink
Transmitter
a. BTS transmit power per carrier (dBm)
b. Attenuation between BTS and Fusion (dB)
c. Power into Fusion (dBm)
d. Fusion gain (dB)
e. Antenna gain (dBi)
f. Radiated power per carrier (dBm)
Airlink
g. Multipath fade margin (dB)
h. Log-normal fade margin with 9 dB std. deviation, 95% area coverage,
87% edge coverage
i. Body loss (dB)
j. Airlink losses (not including facility path loss)
Receiver
k. Thermal noise (dBm/30 kHz)
l. Mobile noise figure (dB)
m. Required C/I ratio (dB)
n. Minimum received signal (dBm)
p. Maximum path loss (dB)
• 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
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