Kuyini 3g: ukuqonda lwesintu kunethiwekhi ububanzi

Sekuyisikhathi eside ukhohliwe mayelana 2G, isiyatholakala isibe standard 3g inethiwekhi. Kuyini lokhu? Idivayisi elincane? Ngokwengxenye, yebo, kodwa uhlelo iphuzu sokufinyelela ukuxhumana eselula ne-intanethi kunzima kakhulu kangakanani.

kudivayisi

Eminyakeni emihlanu nje edlule, kudivayisi 3G kwaba okungaphezu "sibonelo" amanje nawesikhathi libukeka ngomakhalekhukhwini. Linikeza ukufinyelela ngesivinini hhayi kuphela kwi-Inthanethi, kodwa futhi ukuba airwaves kumasevisi ephathekayo. It ikuvumela ukuthi usebenzise mobile zokuxhumana, hhayi unomphela, njengoba kwakunjalo ngaphambili. Izintambo zazingakapheli esikhathini esidlule.

isignali

Impendulo yombuzo, kuyini 3g, ayikwazi ukwenziwa luhlolo kanye incazelo zedivayisi. Ukuze silondoloze ukuxhumana ngesivinini kuyadingeka futhi elinamandla kangaka ukuthumela idatha inethiwekhi - ukuthumela idatha phezu broadband amanethiwekhi ukuvumele ukufeza mphumela.

Izici

Akubona usebenzisa 3G amanethiwekhi babé amasevisi multimedia, kuhlanganise e inethiwekhi global. Yingakho ngisho nokuphathwa kwegama edume 3G njengoba isizukulwane sesithathu. It ikuvumela nje kuphela ukuxhumana, futhi ukuxhumana ngendlela entsha - vidiyo. manje Sizobuye sikuzwe interlocutor ngiyombona. Futhi uma lokho indlela okusebenza ngayo kwi-inthanethi, sonke kakade, kanjani kubonakala mobile? With VideoPhone! .. It ngempela intuthuko kwezobuchwepheshe mobile! Futhi manje izindlela ezintsha Pop eyodwa angafinyelela Inthanethi, ukubukela amabhayisikobho, izinhlelo ze-TV.

Esinye isici owembula impendulo yombuzo othi, yini 3g, kwaba ithuba uhlale njalo ku-line. Ngesikhathi esifanayo, futhi ushintshe indlela yokukhokha, iyunithi yokulinganisa. Nakuba ngaphambili elikhokhelwa ahlala inethiwekhi, ifomethi 3g ikhokhwe imali oyitholile (futhi adluliselwa kanye) kolwazi.

Phakathi kwezinye izici ezithile zendlela entsha yokuxhumana: kuzula ngamazwe, usekelo opharetha amaningi, ukuxhumana satellite, esheshisa 2 Mbps.

Konke lokhu kungenxa Sibonga kungenzeka ukuba yokudlulisela okuqhubekayo idatha ku uhla decimetre. Ayikho into enamandla ngokwengeziwe futhi global kodwa yasungulwa awuzange.

esezingeni izinga

Kuyini 3g njengoba eside? Lo mqondo alikhulumi nje kuphela ngamalungelo ngesivinini, kodwa futhi lisetshenziselwa ukuchaza izinga okusezingeni olunikezwa zokuxhumana: umsindo, ividiyo, multimedia. Ukuze kuzuzwe lokhu yalokho, abakhiqizi abaningi baye baphoqeleka ukuba siqondiswe namazinga omhlaba kanye Ukucaciswa (Uti). Izincomo ukusebenzisa izici izinga lokurhatjha isizukulwane 3g: ukuzuzwa ngcono ukusebenza kahle, umthamo nesivinini 144 kbps (uma ushayela, isibonelo, emotweni, ukuthi lingakanani ijubane lokuya ongafinyelela 120 km ngehora) kufika ku-2 megabits yesibili (baxhashazwe) ngayinye.

3g Kusho ukuthini umsebenzisi, ngaphezu ukufinyelela ngesivinini ku-inthanethi? Isizukulwane sesithathu bayokwazisa kumakhasimende ezinkampani, sibambe umhlangano futhi ukungena kokukude database (ngaphandle kwezintambo kusuka kunoma iyiphi indawo). Ngokulinganayo isevisi eliyingqayizivele wakujabulela kakade abaningi bayazazisa - yikhono ukukhokhela izinsiza nge ifoni (okuthiwa yasebhange mobile), sibonga ngalo asikho isidingo ukucinga ukugcina noma igatsha lasebhange.

Ukusatshalaliswa 3 G

Lokho 3g, abantu baseRussia baye bafunda akunjalo kudala. Ukwethulwa ubuchwepheshe zakamuva zokuxhumana mobile (kuzo zonke izinzwa ethemini) Kwathatha isikhathi eside - iminyaka engu-10. Ekuqaleni inethiwekhi 3G kabanzi lisetshenziswe Japan ke e-Asia, e-United States, futhi ekugcineni, "wafika" emaphethelweni opharetha eYurophu.

3G inethiwekhi - complex system yokudlulisela nekungenisa kanye "umamukeli" isignali: omsakazo ukudluliswa opharetha mobile, World Wide Web. On 3G balindele okukhulu: ekulikhanyiseni, ukuthi kungenzeka ukwakha inethiwekhi mobile global, ukuhlanganisa zonke opharetha. Kodwa uma kuyoba inethiwekhi ezikhona ngaphansi yezifiso ezahlukene (namuhla zabo 2), lokugcina, "rainbow" ngeke ufinyelelwe ...