wireless communications principles and practice
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Wireless Communications Principles and Practice by theodore S. rappaportTRANSCRIPT
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MSCReceive. call franWriflee that theRecant. ES to
PSTN. Sentmobile has. validmove mobile to
the mque.ted MNMIN,wiused voice chin-
all base stasian'ESN pair,neiptir.
FCCTraisnits page
(MN) for tpcci-
fled ma.
BaseRCCReceives MN,
Stationan, Station Cia
Mark and panes to
MSC.
PVC
RVC
FCCReceives page and
m*the. the MN
wMh Its own MN.
RCCAcknowledgee
Mobilereceipt of MN and
sands ESN and St.-
don GaPVCRVCtimeFigure 1 .6
Timing diagram illustrating how a call toa mobile user initiated by a landline subscriber is established.
Corned. themobile with the
ailing pci)' ci ticPSTN.Trmanil. dininrenge formobile to move tospecific voice than-itt
Begin voice tres-miaa
Begin voice leap-tiaReceives data eta-sages to move tospecified voicethamtl
Begin voice reap-
Begin eta 'tans-
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MSCRealva all MkjMjonbuemote FCC of algima-
'equet frontbaseMalen9be'114cr to move
aid vcdfla due lit mobilemobile tea of vole
ae valid MN, ESN .
FCC
Base RCC Raceivo. call initi-Station Mien reques andMN, ESN, Sta'Us MaiL
Cain Istmobile with IscalledpstyaithoPrrrq.Pa, for o.lledligliiemobijotomove to vole
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MobileRCC Saiaaaalnitia.floe tequea alongwith aSsatbe
MN arid mimbor of called paly.PVCRVCFigure 1.7
Timingdiagramillustrating howa call initiated by a mobile is established.time
Begin volereapdat.
Begat vale baa-
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Number of Trunked Channels(C)
0.125 '$ $ 12 14 1$ 1$ a n a 35a 4sa0 N Na
0.050.02.40.01aCo.0
0.0010.11.010.0100.0
Traffic Intensity in ErlsnpFigure 2.6
The Erlang B chart showing the probability of blockingas functions of the number of channels and traffic intensity in Erlangs.
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Number of Trunked Channels(C)
I2gs ,s$I. U
1.00.5"DiQ..
01P atI.
.0
0.050.02 .0.010.10.20.5125102050100
Intensity in &lsngsFigure 2.7The ErlangCchart showing the probability ofa call being delayedas a function of the number of channels and traffic intensity in Erlangs.
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Blockdiagram of a LPC coding system.
Figure 7.6
0
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