Ithempyutheni ye-2.5G ye-intanethi yenze i-tech-switching tech
Kwihlabathi leeselifowuni, ubuchwepheshe be-wireless ye-2.5G yayiyinto ehamba phambili eyenza isizukulwana sesibini ( 2G ) sobuchwepheshe obungenazintambo kunye nobuchwepheshe besithathu ( 3G ). Ngoxa i-2G ne-3G zichazwa ngokusemthethweni njengemigangatho engena-wire, 2.5G ayikho. Yadalwe ngenjongo yokuthengisa.
Njengeyathelo elifutshane ukusuka ku-2G ukuya kwi-3G, i-2.5G yabona ezinye iinkqubela phambili ezihamba kumanethiwekhi e-3G kuquka iinkqubo zokupakisha ipakethi. Ukuguquka kwezinto ezivela ku-2G ukuya ku-3G kwathatha ukuhanjiswa kwedatha ngokukhawuleza nangaphezulu.
Uguqulelo lwe-2.5G Technology
Ngama-1980, iifowuni zisebenza kwi teknoloji ye-analog 1G. I-teknologi ye-Digital 2G yaqala ukufumaneka ekuqaleni kwee-1990 kwiinkqubo zomhlaba jikelele zokunxibelelana kwe-GSM. I-teknoloji yayifumaneka ngokukhawulelana kwexesha lokufikelela (TDMA) okanye ukuhlukana kweefayile ezahlukeneyo (CDMA). Nangona ubuchwepheshe be-2G bugqityiwe ngeteknoloji yecala, lusekhona kwihlabathi jikelele.
Ithempyutheni ye-2.5G ye-intanethi yenze iprogram yokuguqula ipakethe eyayisebenza kakuhle kunokuba ilandelwe ngaphambili. Iziseko zayo zingasetyenziselwa kwisiseko esifanelekileyo kunokuba sibe nesiseko semigqi ngemizuzu, okwenza kube lula ngaphezu kobuchwephesha be-2G. I-teknoloji ye-2.5 yalandelwa ngu-2.75G, eneempawu eziphindwe kathathu, kunye nobuchwepheshe be-3G ngasekupheleni kweminyaka yama-1990. Ekugqibeleni, i-4G ne-5G ilandelwa.
2.5G kunye neGPRS
Ixesha lesi-2.5G ngamanye amaxesha lisetyenziselwa ukubhekisela kwi-General Packet Radio Service ( GPRS ), eyi-standard standard data usetyenziswe kwiinkonzo ze-GSM kwaye yayiyindlela yokuqala yokuguqulwa kwetheknoloji ye-3G. Iintanethi ze-GPRS zigqityiwe ekugqibeleni kwiiNtlawulo zeNgcaciso zeDatha ye-GSM Evolution ( EDGE ), eyona nto yintloko ye-teknoloji ye-2.75G, enye intuthuko eyongeziweyo engeyona inqanaba elingenazintambo.