mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
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cxr. 3.1.<br />
cifruli stan<strong>da</strong>rtebis maxasiaTeblebi<br />
maxasiaTeblebi<br />
GSM<br />
(DSC 1800)<br />
D-AMPS<br />
(ADC)<br />
JDC CDMA<br />
SeRwevis meTodi TDMA TDMA TDMA CDMA<br />
salaparako arxebis<br />
raodenoba erT ga<strong>da</strong>mtanze<br />
8(16) 3 3<br />
810-826<br />
32<br />
890-915<br />
940-956<br />
sixSireTa muSa diapazoni, 935-960 824-840 1429-1441<br />
824-840<br />
mhc<br />
(1710-1785) 869-894 1447-1489<br />
869-896<br />
(1805-1880)<br />
1453-1465<br />
1501-1513<br />
arxebis <strong>da</strong>Zvra, khc<br />
erTi salaparako arxis<br />
200 30 25 1250<br />
eqvivalenturi sixSiruli<br />
zoli, khc<br />
25(12,5) 10 8,3 -<br />
modulaciis saxeoba 0,3 GSMK n/4 DQPSK n/4 DQPSK OQPSK<br />
informaciis ga<strong>da</strong>cemis<br />
siCqare, kb/wm<br />
270 48 42<br />
laparakis gar<strong>da</strong>qmnis siCqare,<br />
kb/wm<br />
13(6,5) 8 11,2(5,6) 8,55; 4,0; 2,0; 0,8<br />
laparakis gar<strong>da</strong>qmnis<br />
algoriTmi<br />
RPE-LTR VSELP VSELP CELP<br />
fiWis radiusi, km 0,5-35,0 0,5-20,0 0,5-20,0 0,5-25,0<br />
gamoiyenos rogorc salaparako signalebis <strong>da</strong> monacemTa<br />
ga<strong>da</strong>cemis sxva<strong>da</strong>sxva mowyobilobebi, aseve<br />
gamoZaxebis <strong>da</strong> saavario signalebis ga<strong>da</strong>cemis<br />
mravalferovani mowyobilobebi. am sistemiT Sesa-<br />
Zlebelia agreTve mierTeba saerTo sargeblobis<br />
satelefono qselebTan (PSTN), monacemTa ga<strong>da</strong>cemis<br />
qselebTan (PDN) <strong>da</strong> cifrul qselebTan momsaxurebis<br />
integraciiT (ISDN).<br />
zemoT aRniSnul sxva cifrul sistemebTan Se-<br />
<strong>da</strong>rebiT, GSM stan<strong>da</strong>rti uzrunvelyofs ukeTes energetikul<br />
maxasiaTeblebs, kavSiris maRal xarisxs,<br />
mis usafrTxoebasa <strong>da</strong> konfidencialobas.<br />
64<br />
miRebuli signalebis <strong>da</strong>makmayofilebeli xarisxi<br />
miiRweva mimRebis Sesasvlelze signali/xmauri fardobis<br />
9 db-isas (magaliTad, D-AMPS-Si es sidide<br />
tolia 16 db-is), xolo energetikuli <strong>da</strong>nakargebi<br />
realur arxebSi (signalis miyuCebisas) 6-10 db-iT<br />
naklebia vidre D-AMPS-Si.<br />
gar<strong>da</strong> zemoT aRniSnulisa, GSM stan<strong>da</strong>rtSi<br />
gaTvaliswinebulia iseTi momsaxurebebi, romlebic<br />
ar aris (an arasrula<strong>da</strong>a) sxva cifrul stan<strong>da</strong>rt-<br />
ebSi. esenia:<br />
_ kavSiris arxebSi <strong>da</strong> momsaxurebaSi SeRwevisaTvis<br />
inteleqtualuri SIM baraTebis gamoyeneba<br />
(SIM-Subscriber Identity Module-abonentis identifikaci-<br />
is moduli);<br />
_ mosmenisagan <strong>da</strong>culi radiointerfeisi;<br />
_ ga<strong>da</strong>mcemSi Setyobinebis cifrul formaSi<br />
gar<strong>da</strong>qmna;<br />
_ abonentis autentifikacia <strong>da</strong> saabonento mowyobilobebis<br />
identifikacia kriptografiuli algoriTmebis<br />
mixedviT;<br />
_ mokle Setyobinebis samsaxurebis gamoyeneba<br />
signalizaciis arxebSi ga<strong>da</strong>cemisaTvis;<br />
_ erovnuli <strong>da</strong> saerTaSoriso masStabiT sxva<strong>da</strong>sxva<br />
GSM qselebis abonentebis avtomaturi roumingi;<br />
_ GSM abonentebisa <strong>da</strong> sxva stan<strong>da</strong>rtebis DCS-<br />
1800, PCS-1900, DECT <strong>da</strong> personaluri <strong>Tanamgzavruli</strong><br />
65
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