Iqela elikhulu leenjineli ezivela kwiinkampani ezahlukeneyo zobukhulu beNokia Bells Labs, iDeutsche Telekom T-Labs okanye iTechnical University yaseMunich, basandula ukupapasha ulwazi olutsha malunga neprojekthi abasebenze kuyo kangangeenyanga kwaye bayibize ngegama. igama le Ukubunjwa kweNkwekwezi enokwenzeka o PCS.
Ngaphantsi kweli gama lingaqhelekanga asifumani nto ingaphantsi kobuchwepheshe apho ukuhanjiswa kwedatha kunokufikelela khona isantya ukuya kuthi ga kwi-terabit enye ngesekhondi phezu kwefiber optics, into eya kuthi ekugqibeleni imisele irekhodi entsha yezantya zedatha. Njengoko kubhengezwe liqela labaphandi, nangona besondele kakhulu ekufezekiseni isantya esinjalo, ngelishwa le teknoloji ibingeke ifumaneke ukusetyenziswa kwezorhwebo.
Itekhnoloji ye-PCS inokwenza i-fiber optics ifikelele kwisantya esifikelela kwi-1 Tbps.
Phakathi kwezona nkcukacha zinomdla kakhulu kule teknoloji intsha sinayo ukuba isebenzisa iindawo zeenkwenkwezi kunye ne-amplitude ephezulu kunye ne-frequency ephantsi. Enkosi koku, kunokwenzeka ukuhambisa imiqondiso ekwaziyo ukumelana nengxolo, iququzelele ngokulandelelanayo. 30% uluhlu olukhulu. Njengoko ipapashwe ngabakwaNokia, obu buchwepheshe busebenzisa i-quadrature amplitude modulation ukunyusa umthamo wothumelo ngetshaneli.
Uvavanyo lokuqala lobu buchwepheshe butsha lwenziwe kwinethiwekhi yefiber optic ephethwe yiDeutsche Telekom. Ngexesha lovavanyo, kwaphunyezwa 1 Tbps izantya. Ngokwedatha yokugqibela yophando, ngelishwa kwaye ubuncinci kude kube yiminyaka elishumi ezayo, ezi zantya akulindelekanga ukuba zifike kwimarike yasekhaya.
Ukufikelela kwezi santya ekusetyenzisweni kwezorhwebo kusoloko ziindaba ezimnandi. Apho andiyiboni into eluncedo okwangoku yimarike yasekhaya. Okwangoku siphumeza i-300 megabytes ye-symmetrical kumakhaya anethamsanqa kakhulu kwaye kunye nabo sifumana phantse yonke into esiyidingayo, intaphane yamajelo eTV, iifowuni, njl. Kuyo nayiphi na i-TV yomsebenzisi, i-10 megabytes yanele kwaye i-4 megabytes ye-bandwidth ishiywe. Nokuba ilungu ngalinye leyunithi yosapho linendlela eyahlukileyo yokubukela umabonwakude, azicimi ezo megabytes zangoku ezingama-300. Zeziphi izenzo ezisebenzayo ezikhoyo? Azindifikeleli kwixesha elifutshane neliphakathi. Xa abaqhubi beTV beqala ukunika amajelo ngezigqibo ze-4k, siya kuqalisa ukuqaphela ukusetyenziswa kwetshaneli yethu esinesivumelwano kwaye asisayi kuyigqiba. Uluvo lwam kukuba kwisigaba sasekhaya kuya kuthatha iminyaka emininzi, iminyaka emininzi ngaphambi kokuba le teknoloji iphunyezwe kuba ayidingeki.