Wonke ama-Smartphones angakwazi ukufinyelela iWebhu, kodwa akubona bonke abangakwenza kanjalo ngejubane elifanayo. Amanye amafoni angaphenya kusuka kusayithi kuya kwesayithi, alanda amafayela ngokukhanya, kuyilapho amanye kubonakala sengathi anikezela ngesivinini ngokushesha kunokuxhumeka kwangaphambili kokudayela.
I-iPhone ye-Apple, isibonelo, ayikwazi ukufinyelela inethiwekhi ye- AT & T ye- HSDPA ; I-Apple ithi ikhethe ukungabi nesekelo le-HSDPA ngoba i-chipset edingekayo ingabe idonse amandla amaningi, ukunciphisa impilo yebhethri.
Uma ngabe isevisi yedatha ephezulu ishicilela kuwe, qiniseka ukuthi ifoni oyithandayo uyayisekela inethiwekhi ye-3G. Futhi khumbula ukubuza ukuthi ungazama yini ifoni kanye nensizakalo ye-3G ngaphambi kokuya enkonzweni yesikhathi eside, noma uyibuyise uma ungajabuli ukusebenza kwayo. Khumbula: Isivinini sangempela singahluka.
Ungaqiniseka kanjani ukuthi ifoni yakho izonikeza ukuphequlula okusheshayo kuwebhu? Esinye sezici ezinkulu kunethiwekhi yocingo ewusizo lwefoni yakho kanye nenethiwekhi eyenziwa yi-carrier yakho yeselula. I-3G, noma isizukulwane sesithathu, inethiwekhi yedatha izonikeza ngesivinini esheshayo. Akuwona wonke amanethiwekhi we-3G adalwe alinganayo, noma kunjalo. Isithwali ngasinye seselula sinika inethiwekhi yaso (noma amanethiwekhi), futhi amaningi ayitholakali kuzo zonke izindawo.
Nakhu okubukeziwe kwalokhu ubuchwepheshe obudideka ngokuvamile.
Akuwona Wonke Amafoni Alinganayo:
Inkampani yenethiwekhi yakho inganikezela inethiwekhi yedatha yezinga eliphezulu, kodwa hhayi wonke amafoni ayo angafinyelela kulezi zinsizakalo ezisheshayo. Amadivaysi athile kuphela-lawo afakwe i-chipset efanele ngaphakathi-angenza kanjalo.
Inethiwekhi ye-3G iyinethiwekhi yeselula ye-Broadband, enikeza ukuhamba kwedatha okungenani ama-kilobits angu-144 ngesigamu (Kbps). Uma uqhathanisa, uxhumano lwe-intanethi lwe-dial-up kumakhompiyutha ngokuvamile lunikeza ngesivinini esingaba ngu-56 Kbps. Uma uke wahlala futhi walinda ikhasi leWebhu ukulanda phezu kokuxhumeka kokudayela, uyazi ukuthi kuphuza kangakanani lokho.
Amanethiwekhi we-3G anganikeza ngesivinini samamitha angu-3.1 ngesigamu (Mbps) noma ngaphezulu; lokho kuhambisana nokuvinjelwa okunikezwa ngamamodeli ekhebula.
Ekusebenziseni kwansuku zonke, noma kunjalo, ijubane langempela lenethiwekhi ye-3G lizohluka. Izinto ezifana nokuqina kwesignali, indawo yakho, nomgwaqo wenethiwekhi konke kudlalwa.
I-T-Mobile Lags Ngemuva:
Njengamanje, i-T-Mobile isekela kuphela inethiwekhi ye-2.5G EDGE. Umthwali wezinhlelo uhlela ukuqala inethiwekhi ye-3G, ngokusekela isevisi ye-HSDPA esheshayo, kamuva kuleli hlobo, noma kunjalo. Hlala ubukele.
Isevisi esheshayo ye-AT & T:
I-AT & T inikeza amanethiwekhi amathathu wedatha "eliphezulu kakhulu": EDGE, UMTS, ne-HSDPA.
Inethiwekhi ye-EDGE , inethiwekhi yedatha esekelwe i-iPhone yesizukulwane sokuqala, akuyona inethiwekhi yedatha ye-3G yangempela. Kuvame ukubhekwa njengenethiwekhi ye-2.5G, ngesivinini esingadluli i-200 Kbps.
Isevisi ye-UMTS inikeza ukuvinjelwa kwama-200 Kbps kuya ku-400 Kbps, okusemandleni okuphuma ngaphandle kwe-2 Mbps. Kuyinto isevisi ye-3G yeqiniso ehamba ngesivinini esedlula inethiwekhi ye-EDGE.
I-Sprint Nextel ne-Verizon Wireless:
I-Sprint Nextel ne-Verizon Wireless nhlangothi zombili zisekela inethiwekhi ye-EV-DO. I-EV-DO ifushane ku-Evolution-Idatha Elungisiwe futhi ngezinye izikhathi igcizelelwe njengo-EvDO noma i-EVDO. I-EV-DO ilinganisiwe ukunikeza ngesivinini kusuka ku-400 Kbps kuya ku-700 Kbps; njengamanye amanethiwekhi we-3G, ukushesha kwangempela kuyahlukahluka.
Ukungafani phakathi kwenkonzo ye-EV-DO enikezwa yi-Sprint Nextel futhi okunikezwa yi-Verizon Wireless akuncane. Izinga zifaniswa, kodwa umthengisi ngamunye unikeza ukufakwa kwezindawo ezindaweni ezahlukene.
Bona Imephu ye-Sprint's Coverage kanye nebalazwe le-Verizon yokuthola ulwazi oluthe xaxa ngokutholakala kwenethiwekhi.
I-HSDPA yiyona esheshayo yamanethiwekhi okusheshayo. Kuyashesha kakhulu ukuthi ngokuvamile ibizwa ngokuthi inethiwekhi ye-3.5G. I-AT & T ithi inethiwekhi ingashaya ngesivinini se-3.6 Mbps kuya ku-14.4 Mbps. Isivinini se-Real-world ngokuvamile sihamba kancane kunalokho, kepha i-HSDPA isengenethiwekhi enkulu kakhulu. I-AT & T ithi futhi inethiwekhi yayo izoshaya ngesivinini se-20 Mbps ngo-2009.
Ukuze uthole olunye ulwazi ngokutholakala kwenethiwekhi, hlola ibalazwe lokubika le-AT & T.