Txawm hais tias LTE 450 tes hauj lwm tau siv nyob rau hauv ntau lub teb chaws tau ntau xyoo, tau rov qab txaus siab rau lawv raws li kev lag luam txav mus rau lub sijhawm ntawm LTE thiab 5G. Lub phasing tawm ntawm 2G thiab qhov tshwm sim ntawm Narrowband Internet ntawm Yam (NB-IoT) kuj yog cov kev lag luam uas tsav kev saws rau LTE 450.
Yog vim li cas yog qhov bandwidth nyob ib ncig ntawm 450 MHz yog qhov zoo rau cov kev xav tau ntawm IoT cov khoom siv thiab cov ntawv thov tseem ceeb xws li cov phiaj xwm ntse thiab cov kev pabcuam ntse ntsuas mus rau pej xeem kev nyab xeeb daim ntawv thov. 450 MHz band txhawb nqa CAT-M thiab Narrowband Internet ntawm Yam (NB-IoT) thev naus laus zis, thiab cov khoom siv lub cev ntawm cov qhab no yog qhov zoo tagnrho rau kev npog thaj chaw loj, tso cai rau cov neeg siv xov tooj ntawm tes los muab kev pab them nqi tag nrho. Cia peb saib ze dua ntawm cov txiaj ntsig cuam tshuam nrog LTE 450 thiab IoT.
Tag nrho cov kev pab them nqi yuav tsum tau IoT cov khoom siv los txo qis kev siv hluav taws xob kom nyob twj ywm. Kev nkag mus tob dua los ntawm 450MHz LTE txhais tau tias cov khoom siv tau yooj yim txuas mus rau lub network yam tsis tas sim siv lub zog.
Qhov sib txawv tseem ceeb ntawm 450 MHz band yog nws qhov ntev dua, uas ua rau muaj kev pab cuam ntau ntxiv. Feem ntau cov lag luam LTE bands siab tshaj 1 GHz, thiab 5G tes hauj lwm yog mus txog 39 GHz. Ntau zaus muab cov ntaub ntawv ntau dua, yog li ntau cov spectrum raug faib rau cov bands no, tab sis qhov no los ntawm tus nqi ntawm cov teeb liab nrawm nrawm, uas yuav tsum muaj lub network ntom ntom ntawm cov chaw nres tsheb.
450 MHz band yog nyob rau lwm qhov kawg ntawm spectrum. Piv txwv li, ib lub teb chaws loj ntawm Netherlands yuav xav tau ntau txhiab lub hauv paus chaw nres tsheb kom ua tiav thaj chaw tag nrho rau kev lag luam LTE. Tab sis qhov nce 450 MHz teeb liab ntau tsuas yog yuav tsum tau ob peb puas lub hauv paus chaw nres tsheb kom ua tiav tib qhov kev pab cuam. Tom qab lub sijhawm ntev hauv qhov ntxoov ntxoo, 450MHz zaus band tam sim no yog lub hauv paus rau kev saib xyuas thiab tswj cov txheej txheem tseem ceeb xws li transformers, kis tau tus mob, thiab kev soj ntsuam ntse ntsuas qhov rooj. 450 MHz tes hauj lwm yog tsim los ua tus kheej tes hauj lwm, tiv thaiv los ntawm firewalls, txuas nrog lub ntiaj teb sab nraud, uas los ntawm nws qhov xwm txheej tiv thaiv lawv los ntawm cyberattacks.
Txij li thaum 450 MHz spectrum tau faib rau cov tswv lag luam ntiag tug, nws feem ntau yuav ua haujlwm rau cov kev xav tau ntawm cov tswv lag luam tseem ceeb xws li cov khoom siv hluav taws xob thiab cov tswv lag luam. Daim ntawv thov tseem ceeb ntawm no yuav yog kev sib txuas ntawm cov khoom sib txuas nrog ntau lub routers thiab rooj vag, nrog rau cov ntse ntsuas qhov rooj rau cov ntsiab lus tseem ceeb.
400 MHz band tau siv nyob rau hauv pej xeem thiab ntiag tug tes hauj lwm rau ntau xyoo, feem ntau nyob rau hauv cov teb chaws Europe. Piv txwv li, lub teb chaws Yelemees siv CDMA, thaum Northern Europe, Brazil thiab Indonesia siv LTE. Cov tub ceev xwm German tsis ntev los no tau muab lub zog ua haujlwm nrog 450 MHz ntawm spectrum. Txoj cai lij choj sau cov chaw taws teeb tswj ntawm cov ntsiab lus tseem ceeb ntawm daim phiaj hluav taws xob. Nyob rau hauv lub teb chaws Yelemees ib leeg, tsheej lab ntawm cov ntsiab lus network tau tos kom txuas nrog, thiab 450 MHz spectrum yog qhov zoo rau qhov no. Lwm lub tebchaws yuav ua raws, xa lawv sai dua.
Kev sib txuas lus tseem ceeb, nrog rau kev tsim kho vaj tse tseem ceeb, yog kev lag luam loj hlob zuj zus raws li kev cai lij choj raws li lub teb chaws ua haujlwm los txo lawv cov kev cuam tshuam ib puag ncig, ruaj ntseg khoom siv hluav taws xob, thiab tiv thaiv kev nyab xeeb ntawm lawv cov pej xeem. Cov tub ceev xwm yuav tsum muaj peev xwm tswj hwm cov txheej txheem tseem ceeb, cov kev pabcuam thaum muaj xwm txheej ceev yuav tsum tswj xyuas lawv cov haujlwm, thiab cov tuam txhab hluav taws xob yuav tsum muaj peev xwm tswj tau daim phiaj xwm.
Tsis tas li ntawd, kev loj hlob ntawm cov ntawv thov hauv nroog ntse yuav tsum muaj kev sib koom tes zoo los txhawb nqa ntau cov ntawv thov tseem ceeb. Qhov no tsis yog ib qho lus teb thaum muaj xwm ceev xwb. Cov kev sib txuas lus tseem ceeb yog cov txheej txheem uas tsis tu ncua thiab siv tsis tu ncua. Qhov no yuav tsum muaj cov yam ntxwv ntawm LTE 450, xws li kev siv hluav taws xob tsawg, kev pabcuam tag nrho, thiab LTE bandwidth los txhawb lub suab thiab video streaming.
Lub peev xwm ntawm LTE 450 tau paub zoo nyob rau hauv Tebchaws Europe, qhov twg lub zog kev lag luam tau ua tiav txoj cai nkag mus rau 450 MHz band rau LTE Low Power Communications (LPWA) siv lub suab, tus qauv LTE thiab LTE-M hauv 3GPP Tso Tawm 16 thiab narrowband Internet ntawm yam.
450 MHz band tau ua tsaug rau lub hom phiaj tseem ceeb ntawm kev sib txuas lus hauv 2G thiab 3G era. Txawm li cas los xij, tam sim no muaj kev txaus siab dua li cov bands nyob ib ncig ntawm 450 MHz txhawb nqa LTE CAT-M thiab NB-IoT, ua rau lawv zoo tagnrho rau IoT daim ntawv thov. Raws li cov kev xa mus txuas ntxiv mus, LTE 450 network yuav ua haujlwm rau IoT daim ntawv thov ntau dua thiab siv rooj plaub. Nrog rau kev paub thiab feem ntau muaj cov txheej txheem uas twb muaj lawm, nws yog lub network zoo tshaj plaws rau kev sib txuas lus tseem ceeb niaj hnub no. Nws kuj haum zoo rau yav tom ntej ntawm 5G. Yog vim li cas 450 MHz yog qhov txaus nyiam rau kev xa tawm network thiab kev daws teeb meem niaj hnub no.
Post lub sij hawm: Sep-08-2022
