I-iPhone 12 isenokungabinakho ukuhambelana kwe5G 700MHz, oko kuthetha ntoni?

Amahemuhemu amva nje aqinisekisa ukuba i-iPhone 12 ayinakuba nayo inkxaso ye-700MHz band yeenethiwekhi ze5G. Ithetha ukuthini le nto kwaye ingaba neziphumo ezinjani?

I-5G iphazili yokwenyani uninzi lwethu, olungenakubalwa oluyinyani, ubuxoki obunesiqingatha kunye nokubalulwa kobuchwephesha uninzi lwabantu abafayo olusigqithileyo. Nangona kunjalo kweli nqaku siya kuzama ukuyicacisa ngendlela yokuba wonke umntu onomdla angayiqonda.

Iindidi ezimbini ze5G: Sub-6Ghz kunye mmWave

Xa uthetha ngobuhle be5G, uhlala usoloko uthetha nge Umda we5G mm. Obu buchwephesha busebenzisa amabhendi aphakamileyo aqala kwi-24GHz ukuya kwi-40GHz, ngesantya esiphezulu (ukuya kuthi ga kwi-5Gbps), ubuncinci bokuhamba kunye nokubanakho kokuvumela unxibelelwano olungapheliyo ngaxeshanye. Nangona kunjalo, le teknoloji ye-mmWave ifuna ukuba ube secaleni kwe-eriyali ehambayo, kuba uluhlu olunayo lincinci kwaye aluhambi nakwiindonga. Okwangoku obu buchwephesha bufumaneka kwiindawo ezimbalwa kakhulu, nase-United States ubukho bayo buphantse babalasele. E-Spain, akukaziwa ukuba ifandesi iza kubanjwa nini ukuze abaqhubi bakwazi ukusebenzisa la mabhendi ahamba rhoqo.

Sikwanayo I-5G Sub-6GHz, Esebenzisa iibhendi ezingaphantsi kwe-6GHz. Le yeyona isetyenziswayo ngoku eSpain, kunye nabasebenzisi abohlukeneyo basebenzisa iibhendi ze-3,7GHz ezazingabokuqala ukuthengiswa kwifandesi. Yinyani ye-5G, kodwa ayiboneleli nge-bandwidth ye-5G mmWave nangona imbuyekezo iphucula ukugubungela, ngaphandle kokubanzi kakhulu idlula lee ye-5G mmWave. Izantya ezinikezelwa yile 5G Sub-6GHz ziphezulu kunezo ze-4G, ezifikelela kwi-200Mbps.

I-700MHz, efunekayo kwiindawo ezingafakwanga bantu

Ifandesi elandelayo yokuthunyelwa kwe-5G iya kuba yeyona ichaphazela i-700MHz frequency. Le bhendi isezantsi inomdla kakhulu kuba, nangona ibonelela nge-bandwidth encinci, uluhlu lwayo lukhulu kakhulu kwaye lunokuwela imiqobo. Isantya esiza kusinika siya kuba sezantsi, i-latency enkulu kwaye iya kuhlala ngokulula ngakumbi xa kukho abantu abaninzi abaxhumeneyo. Ke kutheni unomdla ongaka? Kungenxa yokuba iya kuba yeyokuvumela i-5G ukuba isiwe kwiindawo ezinabantu abaninzi, apho kungenzeki ngobuchwephesha ukubeka ii-eriyali ezininzi, kwaye apho uxinano lwabemi lungabanelisi. Ngeenjongo ezisebenzayo, akwaziwa ukuba zeziphi i-5G 700MHz eziya kuthi zithelekise ne-4G esinayo ngoku.

I-5G kwi-iPhone 12

Amarhe amva nje abonisa oko i-iPhone 12 elandelayo ayinakuba nayo inkxaso ye-5G mmWave ngaphandle kwe-United States, Ukuthengisa ngaphandle kweemodeli zeli lizwe kuphela nge5G Sub-6GHz. Ukuba sithathela ingqalelo ukuba asazi nokuba ukusetyenziswa kwale nethiwekhi kuza kuqala nini ukuvunyelwa eSpain, inyani kukuba ayibonakali iyinto eza kusichaphazela kakhulu, Iminyaka emi-2 okanye emi-3 elandelayo. Kodwa kwakhona Kuvele amarhe okuba i-iPhone 12 isenokungayixhasi i-700MHz frequency nakweliphi na ilizwe emhlabeni, enokuba yingxaki, nangona incinci kuninzi abacinga ngayo.

I-5G ayinxibelelananga ne-700MHz, eneneni ngoku iibhanti ezisetyenziswayo, njengoko besibonisile ngaphambili, zezo ze-3,7GHz. Ukongeza, ezinye ziya kongezwa kamva, ezinje nge-1.5GHz kunye ne-2.3 GHz. Ingxaki iya kuba kwezi ndawo zinabantu abambalwa kwaye zisasazeke ngakumbi apho ezi band zingasetyenziswanga kwaye ixhomekeke kumaza e-700MHz, apho i-iPhone yakho ayizokwazi ukusebenzisa i-5G, nangona kunjalo baya kuba ne-4G njengangaphambili.