User's Manual Part 1

Designing a Fusion Wideband Solution
Page 92 InterReach Fusion Wideband Installation, Operation, and Reference Manual
© 2013 TE Connectivity Ltd D-620616-0-20 Rev H • TECP-77-044 Issue 7 • May 2013
• e:enterthenoisefigureandgainofeachsystemcomponent(a,b,c,andd)intothestandard
cascadednoisefigureformula
• i=
f+e+g–h
• m
=j+k+l
• p=n–m–i
Therefore,thesystemisdownlinklimitedbutthedownlinkanduplink
arealmostbalanced,
whichisadesirablecondition.
Table78.
NarrowbandLinkBudgetAnalysis:Uplink
Line Uplink
Receiver
a. BTS noise figure (dB) 4
b. Attenuation between BTS and Fusion Wideband (dB) –10
c. Fusion Wideband gain (dB) 0
d. Fusion Wideband noise figure (dB) 1-4-32 22
e. System noise figure (dB) 22.6
f. Thermal noise (dBm/30 kHz) –129
g. Required C/I ratio (dB) 12
h. Antenna gain (dBi) 3
i. Receive sensitivity (dBm)
–97.4
Airlink
j. Multipath fade margin (dB) 6
k. Log-normal fade margin with 9 dB std. deviation,
95% area coverage, 87% edge coverage 10
l. Body loss (dB) 3
m. Airlink losses (not including facility path
loss) 19
Transmitter
n. Mobile transmit power (dBm)
28
p. Maximum path loss (dB) 106.4
F
sys
= F
1
+ + + ....
F
2
– 1
G
1
F
3
– 1
G
1
G
2
where
F = 10
(See Rappaport, Theodore S. Wireless Communications, Principles, and Practice. Prentice Hall PTR, 1996.)
(Noise Figure/10)
G = 10
(Gain/10)