I-HSPA yakha izinga elingu-3G ukuhlinzeka ngesivinini esikhulu esisheshayo
I-HSPA + ingenye yezinhlamvu eziningi ezichaza ijubane lokuxhumana kwe-intanethi yefoni yakho. Ngokumane nje, i-HSPA + yinethiwekhi ye- 3G ye-hybrid evala ukuhlukanisa phakathi kuka-3G no- 4G ngesivinini.
Abanye abathengisi benethiwekhi bezentengiselwano baye babhala ngokungafanele nge-HSPA + njenge-4G ngokugcwele, kodwa lokhu kuyakhohlisa.
I-HSPA + isho ukuthi "Ukufinyeleleka Okusheshayo Okuphambene NePakethe Lokufinyelela" (okubizwa nangokuthi i-HSPA Plus) futhi kuyinqubo yobuchwepheshe ye-broadband ye-wireless, ekwazi ukukhiqiza isivinini sokudlulisa idatha kuze kufinyelele ku-42.2 megabithi ngomzuzwana (Mbps).
Kodwa-ke, lokhu kusho ukuthini ngempela kubathengi? Ake sibheke izindinganiso zeselula kanye nesivinini sabo ngokubambisana kakhulu ukuze ubone ukuthi lokhu kungakuthinta kanjani.
Umlando Omfushane Wamanethiwekhi Ethrekhi Yamaselula
Umlando wamazinga wokuxhumana angenawaya abuyele ku-1G ngo-1981, indinganiso ye-analog kuphela ngaphambi kokufika kwama-Smartphones okuvumela amakholi efoni alula kuphela.
Njengoba i- "G" isho ukuthi "isizukulwane," i-1G ayingabizwa ukuthi kuze kube ngu-2G evele ema-1990, esekela izingcingo zezwi ledijithali nokuthumela imibiko.
Amasevisi we-2G
Isisindo se-2G sisalokhu sine-14.4 Kbps (kilobits ngomzuzwana). Lesi simiso sathuthukiswa ngasekupheleni kweminyaka yama-1990 kanye ne- GPRS (General Packet Radio Service), enezela ikhono ledivaysi yokufinyelela uxhumano lwedatha "njalo" lokuhamba ngesivinini sezingu-40 Kbps, nakuba abathengisi bethengisa nge-100 Kbps.
Inethiwekhi ye-2G eyathuthukiswa nge-GPRS ngezinye izikhathi ibizwa ngokuthi yinethiwekhi ye-2.5G.
Ukulandela i-GPRS kwakuyi- EDGE (amazinga okuthuthukiswa kwedatha ye-GSM Evolution), ngokushesha kakhulu kunama-GPRS kodwa namanje angasheshi ngokwanele ukuphothula esizukulwaneni esilandelayo esingu-3G, ehola i-moniker ye-2.75G. Ama-iPhones asekuqaleni, isibonelo, ayekwazi ukulinganisa kwe-EDGE, okungaba ngu-120 Kbps ku-384 Kbps.
Ama-3G Amanethiwekhi ne-HSPA
Njengoba kufika izinga elingu-3G ngo-2001, ama-smartphone aqale ukuqala, njengoba isivinini sokudlulisa idatha ekugcineni saphule hhayi kuphela umkhawulo wamanani wesibili ngesilinganiso, kepha ugijima ngesivinini kufika ku-2 Mbps. Idivaysi enekhono le-3G ishesha kakhulu kangangokuthi u-Apple empeleni wabiza ifoni yakhe i-iPhone 3G. Futhi yilapho i-HSPA ingena khona.
I-HSPA (ngaphandle kokuthi "plus") iyinhlanganisela yezivumelwano ezimbili: Ukufinyelela okusheshayo kwePakethe ye-Downlink Pack (HSDPA) nokuPhezulu okuPhezulu okuPhezulu okuPhezulu (HSUPA) - okusho nje ukuthi ukulandwa nokulayishwa okusheshayo kwakha ngesivinini sokuqala esingu-3G ukulinganisa inani lezinga le-14 Mbps phansi no-5.8 Mbps phezulu.
I-HSPA + yaziswe ngo-2008, futhi ngezinye izikhathi ibizwa ngokuthi yi-3.5G. I-HGA + 3G ithuthukiswe ngokuqhubekayo ku-10 Mbps yezinga eliphezulu, futhi ukuhamba komhlaba wangempela kufana nokulingana no-1-3 Mbps. Futhi, ezinye izithwali zeselula ezineethiwekhi ye-3G HSPA + zikhangise ngokungalungile ijubane layo njenge-4G.
Qaphela : Qaphela ukuthi isivinini sedatha yokulanda phezulu se-HSPA + ngezinye izikhathi kubikwa ukuthi siphakeme kakhulu njenge-100 Mbps, noma isivinini esingu-4G esiphezulu. Lokhu akulungile; awusoze uthole lolu hlobo lwejubane elivuthayo kusuka kunethiwekhi ye-HSPA + (isivinini sayo esikhulu kunama-42 Mbps). Lokho kusho, i-HSPA + iyinhlobo ehamba phambili ka-3G laphaya.
Ama-4G ne-LTE Networks
I-standard ye-4G ingaveza isivinini ngokuphindwe kasikhombisa ngokusheshisa njengo-3G futhi isekelwe kumthetho we- LTE (Long Term Evolution). Eqinisweni, isivinini esikhulu sezinga eliphezulu sibhekwa njengama-100 Mbps, nakuba isivinini esivamile singase sifane ne-3 Mbps kuya ku-10 Mbps - namanje sishesha kakhulu futhi akukho lutho lokuhleka usulu.
Inethiwekhi ye-4G isebenza ngemvamisa ehlukile kune-3G, ngakho-ke qiniseka ukuthi unedivayisi ekwazi ukuyisebenzisa.
Ama-Network 5G
I-5G ubuchwepheshe obungenazintambo obungasetshenziswa ngokugcwele-obusebenzayo obuhlinzeka ukuthuthukiswa ngaphezu kwe-4G njengokufana okusheshayo kuya kwezi-10 ngokushesha.
Amanethiwekhi asebenzisa i-HSPA & # 43;
Amanethiwekhi asebenza ku-3G noma lawo akhuthazwa nge-HSPA + avamile kuwo wonke umhlaba. Abathwali abane abakhulu base-US (AT & T, Verizon, T-Mobile, ne-Sprint) bonke banikeza ukufakwa kwenethiwekhi ye-4G LTE, kuye ngokuthi indawo, kodwa futhi kunezindawo ezingu-3G noma i-3G HSPA +.
Ukuhambisana kwefoni ne-3G HSPA
Ngokungeziwe kumazinga esivinini sedatha yeselula afana ne-3G no-4G, abathengi befoni kufanele baqaphele ama-band frequency bands.
Inethiwekhi ye-3G ivame ukusebenza kuma-frequency amahlanu - 850, 900, 1700, 1900, no-2100 - ngakho-ke kudingeka uqiniseke ukuthi ifoni yakho ye-3G isekela lezo zikhathi (zonke izingcingo zanamuhla zenza). Amafomu asekelwe ocingweni avame ukufakwa kuhlu ebhokisini, noma ungashayela umakhi ukuthi aqiniseke.