ANALISIS PERHITUNGAN LINK BUDGET INDOOR 3G WCDMA - 3G Link Budget
Data Link Basics - The Link Budget
Link budget analysis provides: • Coverage design thresholds • EIRP needed to balance the path • Maximum allowable path loss • It is important that the uplink and downlink paths be balanced, oth...
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v1-AMR12.2K &VoLTE Existing Link budget+ for -3G,LTE,IoTFull description
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ΧΑΡΟΚΟΠΕΙΟ ΠΑΝΕΠΙΣΤΗΜΙΟ Τμήμα Γεωγραφίας Πρόγραμμα Μεταπτυχιακών Σπουδών «Εφαρμοσμένη Γεωγραφία και Διαχείριση του Χώρου» Κατεύθυνση: Ανάπτυξη και Διαχείριση του Ευρωπαϊκού χώρου ΝΕΕΣ ΚΟΙΝΩΝΙΚ...
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RF System (Link Budget) Calculations System Variables Frequency Speed of Light Wavelength
Block PA Power TX Match Loss
Variable Units f0 MHz c m/s λ
m
Variable Units PPA dBm LMatchT dB PTX
dBm
TX connector loss
LConT1
dB
TX cable loss
LCabT
dB
TX connector loss (remote antenna)
LConT2
dB
TX power
PT
dBm
TX antenna gain
GT
dBi
EIRP d L0
dBm m
LFS
dB
PChanFS
dB
Flat Earth Loss (Includes Ground Bounce)
LFE
dB
Multipath Loss
LMP
dB
Obstruction Loss
LObs-Total
dB
Power at RX Antenna, Flat Earth Path
PChanFE
dB
GR
dBi
RX connector loss
LConR1
dB
RX cable loss
LCabR
dB
RX connector loss (remote antenna)
LConR2
dB
RX power, Free Space Path
PRFS
dBm
RX power, Flat Earth Path
PRFE
dBm
TX source
Effective (Isotropic) Radiated Power Distance Channel Medium Loss Factor Free Space Loss Power at RX Antenna, Free Space Path
RX antenna gain
Receiver Sensitivity Calculations RX Noise Figure Operating Temperature
dB
Variable Units NF dB T0 K
Effective Noise Temperature Boltzmann's constant
Te
K J/K
k BWRX
MHz
TAnt
K
Noise Power (at RX)
Pn
dBm
Signal to Noise Ratio
SNRRX
dB
Receive Bandwidth Antenna Temperature
Equation
Value 315 299792458
λ = c/f0
0.9517220889
Equation
Value 10 10 -0.57
(from Connector Loss sheet) (from Cable Loss sheet) (from Connector Loss sheet)
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