mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
mobiluri telekomunikaciis miwispira da Tanamgzavruli sistemebi
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IMT-2000 (UMTS) gamoyofil sixSireTa speqtris<br />
ganawilebis ZiriTadi principebi.<br />
`Zireul~ sixSireTa zolebi msoflios sxva<strong>da</strong>sxva<br />
qveynebsa <strong>da</strong> regionebSi <strong>telekomunikaciis</strong> saerT-<br />
Soriso kavSirSi (tsk-ITU) <strong>mobiluri</strong> <strong>telekomunikaciis</strong><br />
mesame Taobis <strong>sistemebi</strong>saTvis ganixilebo<strong>da</strong><br />
80-iani wlebis Sua periodi<strong>da</strong>n. Sedegad, 1992 wlisaTvis<br />
tsk-ma moamza<strong>da</strong> rekomen<strong>da</strong>cia ITU-R M.672-2,<br />
romelic reglamentirebas ukeTebs sixSireTa ganawilebas<br />
3G <strong>sistemebi</strong>saTvis. am rekomen<strong>da</strong>ciebis<br />
safuZvelze radiokavSiris msoflio administraciebis<br />
konferenciam (rmak) 1992 wels gaanawila<br />
siSireTa zolebi 1885...2025 mhc ( 1 140 F mhc) <strong>da</strong><br />
2110...2200 mhc ( 2 90 F mhc) saerTo siganiT<br />
F1 F2<br />
20 mhc ITM-2000 sistemisaTvis. aseTi ganawileba<br />
<strong>da</strong><strong>da</strong>stur<strong>da</strong> cxril S.5.388_is SeniSvnebSi <strong>da</strong><br />
radiokavSiris reglamentis 212 rezoluciaSi.<br />
muSa sixSireTa zolebi 1885...1900 mhc <strong>da</strong> 2010...2025<br />
mhc gankuTvnilia <strong>mobiluri</strong> <strong>sistemebi</strong>sTvis droi-<br />
Ti dupleqsirebiT. amasTan, UMTS-is saabonento mowyobilobebis<br />
yvela saxeoba (modifikacia) uzrunvelyofs<br />
ga<strong>da</strong>cemis <strong>da</strong> boloebis miRebis sixSireTa<br />
<strong>da</strong>Zvras 190 mhc-iT.<br />
a) arxTaSorisi <strong>da</strong>Zvra.<br />
arxTaSorisi normaluri <strong>da</strong>Zvra Seadgens 5 mhc-s,<br />
magram mocemuli mniSvneloba SeiZleba Seicvalos<br />
ganTavsebis konkretuli pirobebis optimizaciisas.<br />
b) sixSireTa zrdis biji.<br />
sixSireTa badis (saarxo rastris) biji Seadgens<br />
200 khc-s, anu arxis centraluri sixSiris mniSvneloba<br />
un<strong>da</strong> iyos 200-is jeradi.<br />
g) radiosixSiruli arxis absoluturi nomeri.<br />
116<br />
UMTS-is radioeleqtronuli saSualebebis ga<strong>da</strong>mtani<br />
sixSiris mniSvneloba ganisazrvreba radiosixSiruli<br />
arxis absoluturi nomriT, romelic<br />
Semdegi gamosaxulebiT (cxrili 4.1) gaiangariSeba:<br />
cxrili 4.1<br />
zeviT Nu=5 (Fuplink-1885,2 mhc)<br />
qveviT Nd=5 (Fdownlink-2075,2 mhc)<br />
117<br />
1920,2 mhc Fuplink 1979,8 mhc,<br />
sa<strong>da</strong>c F uplink-ga<strong>da</strong>mtani sixSiris<br />
absoluturi mniSvnelobaa xazSi<br />
`zeviT~ mhc-Si<br />
2110,2 mhc Fdownlink 2169,8 mhc,<br />
sa<strong>da</strong>c F downlink-ga<strong>da</strong>mtani sixSiris<br />
absoluturi mniSvnelobaa xazSi<br />
`qveviT~ mhc-Si<br />
4.3. <strong>mobiluri</strong> fiWuri <strong>telekomunikaciis</strong><br />
IS-95 (cdmaOne) stan<strong>da</strong>rtis evolucia<br />
cdma2000 stan<strong>da</strong>rtSi<br />
a) stan<strong>da</strong>rti cdmaOne(IS-95) zogadi<br />
<strong>da</strong>xasiaTeba <strong>da</strong> misi funqcionirebis<br />
princi pebi<br />
teqnikuri moTxovnebi sistemis mimarT Camoyalibebulia<br />
satelekomunikacio mrewvelobis asociaciis<br />
mier (TIA-Teleccommunication Industry Association) Ziri-<br />
Tad stan<strong>da</strong>rtebSi. ganixileba:<br />
IS-95 _ sahaero intefeisi (radiointerfeisi);<br />
IS-96 _ salaparako momsaxureobis interfeisi;<br />
IS-97 _ <strong>mobiluri</strong> sadguris interfeisi;<br />
IS-98 _ sabazo sadguris interfeisi;<br />
IS-99 _ monacemTa ga<strong>da</strong>cemis momsaxureobis interfeisi.<br />
sistema IS-95 gankuTvnilia 800 mghc sixSirul diapazonSi<br />
samuSaod. pir<strong>da</strong>piri arxisaTvis gamoyofilia<br />
869,04...893,97 mhc sixSiruli zoli. kavSiris<br />
arxis zolis sigane Seadgens 1,25 mghc-s, amitom fi-
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