Incazelo:
Ubuchwepheshe be-TDMA, obumele iThemu D ivision M ultiple A ccess, iyinombolo yefoni yeselula ehlanganisiwe kwizinga eliphezulu le- GSM eliphakeme kakhulu, manje elibuchwepheshe beselula kakhulu elisetshenziswa kakhulu emhlabeni.
I-TDMA isetshenziselwa izinhlelo zeselula zocingo lwesibili ( 2G ) njenge GSM. Iningi lamakhulu amasistimu omakhalekhukhwini wesithathu ( 3G ) asekelwe ngokuyinhloko kwi- CDMA ye-GSMA ephikisanayo. I-3G ivumela isivinini sedatha esheshayo ngaphezu kwe-2G.
Ngenkathi i-TDMA ne-CDMA bobabili befeza umgomo ofanayo, benza kanjalo basebenzisa izindlela ezahlukene. Ubuchwepheshe be-TDMA busebenza ngokuhlukanisa isiteshi ngasinye se-digital yeselula sibe yizinkathi ezintathu zesikhathi ngenhloso yokwandisa inani lemininingwane ethathwe.
Ngakho-ke, abasebenzisi abaningi bangabelana ngesiteshi esisodwa semvamisa ngaphandle kokubangela ukuphazanyiswa ngoba isignali ihlukaniswe ngezikhathi eziningi.
Ngenkathi ingxoxo ngayinye isakazwa ngenye indlela ngaphezu kwesikhathi esifushane nobuchwepheshe be-TDMA, i-CDMA ihlukanisa ukuxhumana ngekhodi ukuze izingcingo eziningi zingabuye zihanjiswe esiteshini esifanayo.
Iziphathimandla zefoni ezisemqoka e-US azisekho ukusebenzisa i-TDMA.
I-Sprint, Virgin Mobile , ne-Verizon ukusebenzisa i-CDMA ngenkathi i-T-Mobile ne-AT & T isebenzisa i-GSM.
Ukubizwa ngegama:
tee-dee-e-eh
Obeye aziwe njengo:
Itheksthi D i- ivision M i- a- c
Izibonelo:
Ubuchwepheshe be-TDMA bufakwe kwizinga eliphakeme kakhulu le-GSM.