Eyethulwe ngokusemthethweni ngo-1991, amanethiwekhi e-2G afaka izingcingo zezwi kuphela nemiyalezo yombhalo, futhi ubuchwepheshe busilele emuva kakhulu kumanethiwekhi e-4G/5G asetshenziswa kabanzi namuhla.Kusukela ngo-September, opharetha be-142 emazweni we-56 sebeqedile, bahlela noma basenqubeni yokuvala amanethiwekhi abo e-2G / 3G, ngokusho kwedatha ekhishwe yi-Global Mobile Providers Association.
I-2G/3G inezindleko zokusebenza eziphezulu futhi isebenzisa izinsiza ezimoshayo ze-spectrum
Ngokufika kwe-5G, opharetha basekhaya bahlangana ne-2G, 3G, 4G, 5G "izizukulwane ezine", kodwa lokhu akuyona injabulo, kodwa ubuhlungu nokucindezela, izindleko zokusebenza nokugcinwa kwezindleko zihlala ziphakeme, izinsiza ze-spectrum zilinganiselwe, izinsiza zesayithi azanele, ngokungathí sina. ezithinta ukuthuthukiswa kwemboni yolwazi nezokuxhumana yaseChina.
Ngokuthuthuka kwesayensi nobuchwepheshe kanye nokwenza ngcono okuqhubekayo kwezidingo zabantu kumanethiwekhi okuxhumana, isivinini sokuxhumana kanye nezinsizakalo ezihlinzekwa ubuchwepheshe be-2G kanye ne-3G abukwazanga ukuhlangabezana nezidingo zabantu.Izinsiza ze-spectrum ezisetshenziswa ubuchwepheshe be-2G ne-3G nazo zilinganiselwe, futhi uma siqhubeka nokusebenzisa ubuchwepheshe be-2G ne-3G, sizomosha izinsiza eziningi ze-spectrum.
Isimo se-2G ne-3G e-China: isisekelo somsebenzisi sikhulu, futhi ijubane lokuhoxa lihamba kancane
Inani labasebenzisi be-2G e-China likhulu kakhulu.Ngokwemininingwane ekhishwe nguMnyango Wezimboni Nobuchwepheshe Bolwazi, kusukela ngonyaka ka-2020, kuzoba nabasebenzisi be-2G abayizigidi ezingama-273 kunethiwekhi, okubalelwa ku-17.15% wabo bonke abasebenzisi.Abaningi balaba bantu ngabantu asebekhulile abahlala ezindaweni ezikude, abangenasidingo esincane sama-smart phone futhi ikakhulukazi abashaya izingcingo.
U-Ling Li, uprofesa ohlangene eSikoleni SeSayensi Yezolwazi Nobunjiniyela e-Fudan University, uthe ukuphindaphinda kwezobuchwepheshe kuyindlela evamile, futhi opharetha nabo "bahlukana" kumanethiwekhi we-2G / 3G, kodwa inqubo ayiyona impumelelo yasebusuku, ngoba kusenabasebenzisi abaningi abasebenzisa amanethiwekhi e-2G noma e-3G.Ngaphezu kwalokho, ngaphezu kwamakholi wefoni, kunolunye uhlelo lokusebenza olungenakunakwa, okungukuthi, uhlelo lwe-inthanethi Yezinto olusetshenziswa ekuphathweni kwedolobha, amanye alawa madivayisi asebenzisa amanethiwekhi we-2G/3G ukuxhumana.
Ingabe umakhalekhukhwini wabantu asebekhulile ungaqhubeka usetshenziswa?
Ama-opharetha wendawo e-Guangzhou China aphendule ngokuthi amanethiwekhi e-2G ngeke atholakale futhi imisebenzi ye-VoLTE izodinga ukuthi inikwe amandla kumaselula.I-VoLTE iyisevisi yezingcingo esekelwe kumanethiwekhi e-4G, futhi uma ungenaso lesi sici efonini yakho, ngeke ukwazi ukuqhubeka nokusisebenzisa futhi uzodinga ukuthenga ifoni entsha.Njengamanje, ukuthuthukisa i-SIM khadi yeselula ye-2G ibe yi-4G noma i-5G ye-SIM khadi kumahhala futhi asikho isidingo sokushintsha uhlelo.
Uma udinga ai-amplifier yesignali yeselula,I-Gsm Repeater,ngicela ungithintewww.lintratek.com
Isikhathi sokuthumela: Sep-18-2023