mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
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li cikluri wanacvlebiT, rac moiTxovs maT urTierT<br />
sinqronizacias. CDMA2000 sistemaSi sawyisi<br />
sinqronizacia uzrunvelyofilia saerTo pilotsignaliT,<br />
romelic gamosxivdeba yoveli sabazo sadguri<strong>da</strong>n.<br />
WCDMA-Si sawyisi Ziebis procedura gacilebiT<br />
rTulia. ganxilul teqnologiebSi bevri<br />
ramaa saerTo, amas gar<strong>da</strong>, gatarebis unaris gazrdisaTvis<br />
maTSi gamoiyeneba multikoduri ga<strong>da</strong>cema.<br />
orive stan<strong>da</strong>rti iTvaliswinebs simZlavris dinamiur<br />
marTvas kavSiris pir<strong>da</strong>pir <strong>da</strong> uku arxebSi.<br />
CDMA-2000 -is <strong>da</strong> WCDMA-s ZiriTadi maxasiaTeblebi<br />
mocemulia cxr.4.2-Si.<br />
cxr.4.2.<br />
sistema CDMA2000 WCDMA<br />
sixSiris<br />
diapazoni<br />
sixSiruli zoli<br />
mghc<br />
824-849/869-894 <strong>da</strong> 1900 1920-1980; 2110-2170<br />
3,75(3X1,25)-sabazo; 1,25XN,<br />
sa<strong>da</strong>c N=1, 6, 9, 12<br />
124<br />
5-sabazo; 1,25; 10 <strong>da</strong> 20<br />
SeRwevis meTodi MC - CDMA DS - CDMA<br />
SeTavsebadoba<br />
Cipuri siswrafe<br />
mCip/wm<br />
kodireba<br />
sabazo sadgurebis<br />
sinqronizacia<br />
orTogonaluri<br />
kodebi<br />
CDMAOne-Tan<br />
ukuSeTavsebadoba<br />
3,6864(3X1,2288) – sabazo;<br />
Nx1,2288, sa<strong>da</strong>c N=1, 6, 9, 12<br />
xvevadi kodi (K=9; R=1/2, 1/3,<br />
1/4), turbokodi (k=4)<br />
GSM-Tan SeTavsebadi<br />
eqspluatacia <strong>da</strong><br />
hendoveris uzrunvelyofa<br />
3,84(sabazo); 7,78 <strong>da</strong> 15,56<br />
xvevadi kodi (K=9; R=112,<br />
113)+ rid-solomonis kodi,<br />
turbokodi (k=3)<br />
sinqronuli muSaoba asinqronuli muSaoba<br />
uolSis funqciebi <strong>da</strong><br />
kvaziorTogonaluri kodebi<br />
cvalebadi sigrZis<br />
orTogonaluri kodebi<br />
OVSF gafarTovebebis<br />
koeficientebiT 1-512<br />
(4-256 UTRA-Si)<br />
gafarTovebuli<br />
mimdevrobebi<br />
mokle kodebi sigrZiT 215 <strong>da</strong><br />
grZeli kodebi sigrZiT (242-1) goldis kodebi<br />
fiWebis Zebnis<br />
sqema<br />
pilot signaliT<br />
samseqtoriani Zebna<br />
(goldis kodis Zebna)<br />
kadris sigrZe mw 5,20 10<br />
monacemTa<br />
pird.<br />
arxi<br />
QPSK QPSK<br />
modulacia uku.<br />
arxi<br />
BPSK BPSK<br />
gafarTove-<br />
pird.<br />
arx.<br />
QPSK QPSK<br />
buli mod. ukuar. OPSK QPSK an MPSK (OCOPSK)<br />
arxebis<br />
avtomaturi<br />
ga<strong>da</strong>rTvis meTodi<br />
rbili, xisti<br />
(sixSireTaSorisi)<br />
rbili, xisti<br />
(sixSireTaSorisi an<br />
sistemaTaSorisi)<br />
simZlavris marTva<br />
siswrafe 0,8 kbit/wm, marTvis<br />
biji 0,25; 0,5 <strong>da</strong> 1,0<br />
siswrafe 1,6 kbit/wm<br />
marTvis biji 0,25-1,5<br />
Tavi V. <strong>mobiluri</strong> <strong>telekomunikaciis</strong><br />
<strong>Tanamgzavruli</strong> <strong>sistemebi</strong><br />
5.1. momsaxurebebi, romlebsac uzrunvelyofen <strong>mobiluri</strong><br />
<strong>telekomunikaciis</strong> <strong>Tanamgzavruli</strong> <strong>sistemebi</strong><br />
<strong>telekomunikaciis</strong> <strong>Tanamgzavruli</strong> <strong>sistemebi</strong> maT<br />
mier gaweuli momsaxurebis mixedviT pirobiTad<br />
SeiZleba <strong>da</strong>iyos sam ZiriTad jgufad:<br />
_ monacemTa ga<strong>da</strong>cemis paketuri <strong>sistemebi</strong>, romlebic<br />
moicavs: cirkularuli Setyobinebebis mowodebas,<br />
sxva<strong>da</strong>sxva obieqtebis (maT Soris satransporto)<br />
mdgomareobaze avtomaturad, monacemis Segrovebas<br />
<strong>da</strong> sxv.<br />
_ salaparako (radiosatelefono) <strong>telekomunikaciis</strong><br />
<strong>sistemebi</strong>;<br />
_ momxmarebelTa adgilmdebareobis (koordinatebis)<br />
gansazRvris <strong>sistemebi</strong>.<br />
amasTan, zemoaRniSnulTagan monacemTa ga<strong>da</strong>cemis<br />
<strong>sistemebi</strong> gankuTvnilia nebismieri monacemis (teqsturi,<br />
faqsimiluri Setyobinebis, kompiuteruli<br />
monacemebis <strong>da</strong> sxv.) ga<strong>da</strong>cemisaTvis.<br />
monacemTa paketuri ga<strong>da</strong>cemis siCqare <strong>telekomunikaciis</strong><br />
Tanamgzavrul sistemaSi Seadgens asobiT<br />
mbt/wm-s. msgavs sistemaSi, rogorc wesi, ar aris<br />
gaTvaliswinebuli momsaxurebis uwyvetoba. aseve<br />
ar aris mkacri moTxovnebi Setyobinebebis operatiulad<br />
mowodebaze. aseT reJimSi muSaobs<br />
`eleqtronuli fosta~ am SemTxvevaSi mowodebul<br />
informacias imaxsovrebs Tanamgzavris bortis kompiuteri<br />
<strong>da</strong> igi korespondents miewodeba dRe-Ramis<br />
gansazRvrul monakveTSi.<br />
125
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