I-HSPA yakha kumgangatho we-3G ukubonelela ngokukhawuleza okukhulu
I-HSPA + yenye yeenkcukacha ezininzi ezichaza isantya soxhumo lwe-intanethi yefowuni. Kulula nje, i-HSPA + yintanethi ye- 3G ye-hybrid eyenza ukuhlula phakathi kwe-3G ne- 4G ngesivinini.
Abanye abathengisi beevenkile zentengiso baye babhala ngokugqithiseleyo i-HSPA + njenge-4G ngokupheleleyo, kodwa oku kudukisa.
I-HSPA + ithetha "Ufikeleleko oluPhezulu lwePakethe ye-Speed Pack" (ebizwa ngokuba yi-HSPA Plus) kwaye luyimilinganiselo yobugcisa bombane wokungena-wireless, onokukwazi ukuvelisa ukuhamba kwedatha ukuya kwi-42.2 megabits ngesibini (Mbps).
Nangona kunjalo, oko kuthetha ntoni kubaxhasi? Makhe sibone imilinganiselo yeselula kunye nesivinini sabo ngokukhawuleza ukuze sibone indlela oku kunokuchaphazela ngayo.
Imbali emfutshane yeMigangatho yeNethwekhi yeSelula
Imbali yemigangatho yokunxibelelana engenakucingo ibuyela ku-1G ngo-1981, umgangatho wodwa wokudala ngaphambi kokufika kwee-smartphone ezivumela iifowuni ezilula kuphela.
Ekubeni i-"G "ithetha nje" isizukulwana, "i-1G yayingabizwa ukuba i-2G yavela kuma-1990, ixhasa iifowuni zezwi ledijithali kunye nokuthumela imiyalezo.
2G IiNethiwekhi
Isantya se-2G sasiyi-ntshonkco-njengama-14.4 Kbps (iikhibitshi ngomzuzwana). Lo mgangatho uphuculwe ngasekupheleni kweminyaka yama-1990 kunye ne- GPRS (i-General Packet Radio Service), ukongezelela ukukwazi ukuba ifowuni ifikelele "uxhumano lweenkcukacha" ngokukhawuleza kwee-40 Kbps, nangona abathengisi bayithengisa kwi-100 Kbps.
Inethwekhi ye-2G ephakanyisiwe kunye ne-GPRS ngamanye amaxesha iye yahanjiswa njengenethiwekhi ye-2.5G.
Ukulandela i-GPRS yayiyi- EDGE (i-Data Increased-rates for GSM Evolution), ininzi ngokukhawuleza kune-GPRS kodwa ingahambi ngokukhawuleza ukuphumelela kwisizukulwana esilandelayo esingu-3G, ukufumana i-moniker ye-2.75G. Umzekelo, ii-iPhones zakuqala, ziyakwazi ukufikelela kwii-EDGE ngesivinini, malunga ne-120 Kbps ukuya kuma-384 Kbps.
3G IiNethiwekhi kunye ne-HSPA
Ngokufika komgangatho we-3G ngo-2001, ii-smartphones zaqala ukuhamba, njengoko isantya sokudluliselwa kwedatha ekugqibeleni asiphulaphuli kuphela umgama we-megabit ngomlinganiselo wesibini, kodwa ufike ngesivinini ukuya kwi-2 Mbps. Idivaysi enekhono eli-3G likhawuleza kangangokuthi i-Apple yabiza igama layo i-iPhone 3G. Yaye yilapho i-HSPA ingena khona.
I-HSPA (ngaphandle kwe-"plus") inxulumene neeprotoksi ezimbini: Ukufikelela kwiPhakethe yokuPhezulu okuPhezulu kweHlabathi yokuPhumela kweHlabathi (HSDPA) kunye nokuPhezulu okuPhakamileyo kwePakethe yokuPhepha (HSUPA) - oko kuthetha ukuba ukukhuphela kunye nokulayisha okukhawulezayo kwakha kwizantya zokuqala ze-3G ukuphakama kwezinga le-14 Mbps phantsi kunye no-5.8 Mbps phezulu.
I-HSPA + yaqaliswa ngo-2008, kwaye ngezinye izihlandlo ibizwa ngokuba yi-3.5G. I-HSPA + i-3G ephuculweyo ngakumbi kwiiyure eziphakamileyo zee-10 Mbps, kunye nezantya zehlabathi zangempela zilinganiselwa kuma-1-3 Mbps. Kwakhona, ezinye izithwele zeselula ezine-3G HSPA + inethiwekhi ziye zavakalisa ngokuphambuka isivinini sayo njenge-4G.
Qaphela : Qaphela ukuba isantya sokukhuphela kwedatha ye-HSPA + ngamanye amaxesha kuthiwa iphakamileyo njenge-100 Mbps, okanye i-4G isantya. Oku akuko; awuyi kuze ufumane le ndlela yokutshisa i-HSPA + inethiwekhi (isivinini sayo se-42 Mbps). Oko kwathiwa, i-HSPA + yintlobo esheshayo ye-3G ngaphandle apho.
4G kunye neLTE Networks
Umgangatho we-4G unokuvelisa umlinganiselo malunga namahlanu ngokukhawuleza njengo-3G kwaye usekelwe kwi- LTE (Long Term Evolution) protocol. Enyanisweni, isantya esiphezulu sithathwa njenge-100 Mbps, nangona isantya sesantya siza kufana ne-3 Mbps ukuya kwi-10 Mbps - kusasa ngokukhawuleza kwaye akukho nto yokuhlekisa.
Intanethi ye-4G isebenza kwi-frequency ehlukeneyo kune-3G, ngoko qi ni sekise ukuba unesistim esinokuyisebenzisa.
5G IiNethiwekhi
I-5G iteknoloji engenakucatshulwa ngokugcwele-engagqibekanga ngokupheleleyo eyenza ukuphucula ngaphezu kwe-4G ifana nokukhawuleza ukuya kuma-10 ngokukhawuleza.
IiNethwekhi ezisebenzisa i-HSPA & # 43;
Iintanethi eziqhuba i-3G okanye ezo zenziwe nge-HSPA + ziqhelekileyo kwihlabathi lonke. Iinqwelo ezine ezinkulu zase-United States (AT & T, Verizon, T-Mobile, kunye ne-Sprint) zonke zibonelela ngenethiwekhi ye-4G LTE, kuxhomekeka kwindawo, kodwa ibe neendawo ze-3G okanye i-3G HSPA.
Ifowuni Ukuhambelana ne-3G HSPA
Ukongeza kwimiqathango yesantya yesantya yesantya efana ne-3G ne-4G, abathengi beefowuni kufuneka baqaphele amaqela e-frequency frequency.
Intanethi ye-3G ihlala isebenza kwiindawo ezi-5 - 850, 900, 1700, 1900 kunye no-2100 - ngoko kufuneka uqiniseke ukuba ifowuni yakho ye-3G isekela ezo zixhobo (zonke iifowuni zanamhlanje zenza). Iifowuni ezixhaswa zifowuni zidlaliswe kwiibhokisi, okanye ungabiza umnini-mveliso ukuba aqiniseke.