Yintoni 3g: ukuqonda kothungelwano olubanzi abantu

Kuye kudala olityelweyo malunga 2G, ngoku ekhoyo iye uthungelwano 3g eqhelekileyo. Yintoni na? A sisixhobo esincinane? Inxalenye, ewe, kodwa inkqubo indawo yokufikelela unxibelelwano mobile kanye Internet kunzima kakhulu ngakumbi.

device

kwiminyaka nje emihlanu edlulileyo, isixhobo 3G waba ngaphezulu kakhulu kwi "kwase 'lwangoku kwaye ikhangeleka ngathi kwiselula. Inika ukufikelela-high speed nje kuphela kwi Internet, kodwa esemoyeni kwiinkonzo mobile. It ikuvumela ukuba usebenzise unxibelelwano mobile, unaphakade, njengoko kwakunjalo ngaphambili. Iingcingo zazikude ngaphambili.

uphawu

Impendulo yalo mbuzo, yintoni na 3g, asikwazi kuncitshiswa zibe uviwo kunye nenkcazelo kwefowuni. Ukugcina uqhagamshelwano-high speed kuyimfuneko yaye loo enamandla ukudluliselwa data yenethiwekhi - transmission data phezu uthungelwano broadband eye wavumela ukuba ukufikelela nomphumela.

iimpawu

Lilungelo leSebe i ngokusebenzisa 3G baye baba iinkonzo yemultimedia, kuquka uthungelwano lwehlabathi. Ngoko ke ukukhankanywa elidume 3G njenge isizukulwana yesithathu. It ikuvumela ukuba ukuthetha nje kuphela, yaye ukunxibelelana ngendlela entsha - video. Ngoku siza kuva interlocutor uze kumbona. Kwaye ukuba ke isebenza njani kwi Internet, kakade yonke, ukuthi kuziveza ngayo ngokwayo kwi mobile? Ekubeni videophone! .. It ngokwenene impumelelo technology mobile! Kwaye ngoku neendlela ezintsha of mobile phones umntu ukufikelela kwi Internet, ubukele eshukumayo, zikamabonwakude.

Enye into ebonisa impendulo yombuzo, yintoni na 3g, yayilithuba lokuba ahlale rhoqo on-line. Ngelo xesha, baza uhlobo lwentlawulo, iyunithi yokulinganisa. Nangona ihlawulwe ngaphambili ukuba bahlale womnatha, i-3g ifomati uhlawule imali oyifumeneyo (kwaye ezosulela kwakunye) yolwazi.

Phakathi kwezinye iinkalo zendlela entsha yonxibelelwano: ukuzulazula ngamazwe, inkxaso abashishini ezininzi, unxibelelwano kunye satellite, ukukhawulezisa ukuya mbps-2.

Konke oku Bulelani kunokwenzeka ukuba ukudluliselwa gqolo data kwi kuluhlu decimetre. Ayikho into enamandla ngakumbi yaye jikelele ngakumbi kodwa yasungulwa ayizange.

izinga lomgangatho

Yintoni 3g njenge gama? Le nto ayithethi ukuba ngezantya eziphakamileyo kuphela, kodwa kusetyenziswa ukuchaza umgangatho ophezulu ezinikezelwa yi kunxibelelwano: odiyo, ividiyo, multimedia. Ukuphumeza oku yoko, abenzi kuye kwanyanzeleka ukuba sikhokelwe nemigangatho yamazwe ngamazwe kunye nokubalulwa (Uti). Iziphakamiso ukusebenzisa iimpawu sokuquqa spectrum sizukulwana 3g: impumelelo ephuculiweyo ukusebenza, umthamo kunye nesantya 144 kbps (xa uqhuba, umzekelo, kule moto, isantya intshukumo owawufikelela 120 km ngeyure) ukuya ku megabits 2 yesibini (nokungakwazi) nganye.

3g Kuthetha ukuthini ukuba umsebenzisi, ukongeza kwi-high speed ukufikelela kwi-intanethi? Besizukulwana sesithathu bazakuyivuyela lweeklayenti ezikushishino, ukuthatha uncedo inkomfa kunye unikezelo lobekelo kude kwiziko ledatha (ngaphandle iingcingo nakweyiphi indawo). Ngokulinganayo inkonzo unique akwazise sele nok ezininzi - kukukwazi ukuhlawulela iinkonzo nge ifowuni (njalo-ebizwa zebhanki mobile), sibonga ngalo akukho mfuneko ukufuna isitishi okanye isebe lebhanki.

Ukwabela 3 G

Oko kukuthi 3g, baseRashiya baye bafunda ukuba kudala. Ukuqaliswa iiteknoloji ezintsha kwi kunxibelelwano mobile (kuzo zonke iziva-mvo kwekota) wathabatha ixesha elide - iminyaka eli-10. Ekuqaleni inethiwekhi 3G lisetyenziswa eJapan, ngoko kwelaseAsiya, eUnited States, ekugqibeleni, "wafika" abaqhubi Europe.

3G kwinethiwekhi - inkqubo transmission ufake ezintsonkothileyo "receiver 'uphawu: transmission sokuquqa kwerediyo kwabasebenzisi ezihambayo, i-World Wide Web. On 3G balindele aphezulu: ekuyiphuhliseni, bekuya kuba lula ukwenza kwinethiwekhi yeselula lwehlabathi, ukudibanisa bonke abaqhubi. Kodwa ke ukuba uya khona uthungelwano phantsi elandelwayo ezahlukeneyo (namhlanje zabo 2), yokugqibela, "umnyama" akunakufezekiswa ...