Tshaj tawm hauv xyoo 1991, 2G tes hauj lwm tsuas yog hu xov tooj thiab xa ntawv, thiab cov thev naus laus zis tau poob qis dua 4G / 5G tes hauj lwm uas tau siv dav niaj hnub no. Raws li lub Cuaj Hlis, 142 tus neeg ua haujlwm hauv 56 lub teb chaws tau ua tiav, npaj lossis tab tom kaw lawv cov 2G / 3G tes hauj lwm, raws li cov ntaub ntawv tshaj tawm los ntawm Lub Koom Haum Ntiaj Teb Mobile Providers Association.
2G / 3G muaj cov nqi khiav lag luam siab thiab tuav cov peev txheej pov tseg
Nrog rau kev tuaj txog ntawm 5G, cov neeg ua haujlwm hauv tsev ntsib 2G, 3G, 4G, 5G "plaub tiam", tab sis qhov no tsis yog kev zoo siab, tab sis qhov mob thiab siab, kev ua haujlwm thiab kev saib xyuas cov nqi tseem siab, cov peev txheej muaj tsawg, cov peev txheej ntawm qhov chaw tsis txaus, tiag. cuam tshuam rau txoj kev loj hlob ntawm Tuam Tshoj cov ntaub ntawv thiab kev sib txuas lus kev lag luam.
Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev txhim kho txuas ntxiv ntawm tib neeg cov kev xav tau ntawm kev sib txuas lus sib txuas lus, kev sib txuas lus ceev thiab cov kev pab cuam los ntawm 2G thiab 3G thev naus laus zis tau ua tsis tau raws li tib neeg cov kev xav tau. Cov peev txheej spectrum nyob ntawm 2G thiab 3G thev naus laus zis kuj raug txwv, thiab yog tias peb txuas ntxiv siv 2G thiab 3G thev naus laus zis, peb yuav nkim ntau cov peev txheej spectrum.
Qhov xwm txheej ntawm 2G thiab 3G hauv Suav teb: tus neeg siv lub hauv paus loj, thiab kev tshem tawm qeeb
Tus naj npawb ntawm 2G cov neeg siv hauv Suav teb yog qhov loj heev. Raws li cov ntaub ntawv tshaj tawm los ntawm Ministry of Industry thiab Information Technology, raws li xyoo 2020, yuav muaj 273 lab 2G cov neeg siv hauv lub network, suav txog 17.15% ntawm tag nrho cov neeg siv. Ntau tus ntawm cov neeg no yog cov neeg laus nyob rau hauv cov cheeb tsam deb, uas muaj tsawg thov rau cov xov tooj ntse thiab feem ntau hu xov tooj.
Ling Li, tus kws tshaj lij ntawm Lub Tsev Kawm Ntawv Kev Tshawb Fawb Txog Kev Tshawb Fawb thiab Engineering ntawm Fudan University, tau hais tias kev siv thev naus laus zis yog qhov kev hloov pauv dav dav, thiab cov neeg ua haujlwm tseem "tawm" rau 2G / 3G tes hauj lwm, tab sis cov txheej txheem tsis yog kev vam meej thaum hmo ntuj, vim tias tseem muaj ntau tus neeg siv 2G lossis 3G tes hauj lwm. Tsis tas li ntawd, ntxiv rau kev hu xov tooj, muaj lwm daim ntawv thov tsis tuaj yeem tsis quav ntsej, uas yog, Internet of Things system siv hauv kev tswj hwm nroog, qee qhov ntawm cov cuab yeej no kuj siv 2G / 3G tes hauj lwm sib txuas lus.
Lub xov tooj ntawm tes rau cov neeg laus puas tuaj yeem siv txuas ntxiv?
Cov neeg ua haujlwm hauv nroog hauv Guangzhou Tuam Tshoj tau teb tias 2G tes hauj lwm yuav tsis muaj thiab VoLTE yuav tsum tau qhib rau hauv xov tooj ntawm tes. VoLTE yog qhov kev pabcuam hu ua 4G tes hauj lwm, thiab yog tias koj tsis muaj qhov tshwj xeeb no hauv koj lub xov tooj, koj yuav tsis tuaj yeem siv txuas ntxiv thiab yuav tsum tau yuav lub xov tooj tshiab. Tam sim no, kev hloov kho 2G mobile SIM daim npav rau 4G lossis 5G mobile SIM daim npav yog pub dawb thiab tsis tas yuav hloov txoj kev npaj.
Yog koj xav tau ibxov tooj ntawm tes teeb liab amplifier,Gsm Repeater, thov hu rauwww.lintratek.com
Post lub sij hawm: Sep-18-2023