Txawm hais tias LTE 450 network tau raug siv nyob rau ntau lub teb chaws tau ntau xyoo, nws nyiam dua rau lawv ua kev lag luam txav mus rau hauv LTE thiab 5G. Qhov ntsuas ntawm 2g thiab kev tawm tsam ntawm kab ntawm Internet ntawm yam (NB-IOT) kuj yog ntawm kev ua lag luam tsav tsheb lub lev 450.
Qhov laj thawj yog tias bandwidth nyob ib ncig ntawm 450 MHz yog zoo haum rau cov kev xav tau ntawm cov phiaj xwm thiab cov kev pabcuam metchaning rau kev nyab xeeb kev nyab xeeb cov ntawv thov kev nyab xeeb. Lub 450 MHz Band txhawb nqa miv-m thiab splowband txhawb nqa internet ntawm cov khoom (NB-IOT) thev naus laus zis, tso cai rau cov neeg ua haujlwm cell los muab tag nrho cov neeg ua haujlwm pab them tag nrho. Cia peb mus saib ze rau cov txiaj ntsig cuam tshuam nrog LTE 450 thiab IO.
Pab them tag nrho yuav tsum tau ib cov khoom siv Lub tob tob nkag tau los ntawm 450mhz LTE tau txhais tau tias cov khoom siv tau yooj yim txuas rau lub network tsis tas li sim ua lub zog.
Lub ntsiab lus tseem ceeb ntawm 450 MHz Band yog nws txoj kev ntev dua, uas nce ntxiv kev pab them nqi. Feem ntau cov lag luam LTE bands yog siab dua 1 GHz, thiab 5g tes hauj lwm muaj txog 39 GHz. Cov peev txheej siab tau muab cov ntaub ntawv siab dua, yog li ntau cov spectrum tau faib rau cov hlua ntawm cov paib kev ua haujlwm nrawm, uas yuav tsum muaj qhov chaw nres tsheb.
Lub 450 MHz Band yog nyob rau lwm qhov kawg ntawm lub spectrum. Piv txwv li, lub teb chaws loj me ntawm Tebchaws Netherlands yuav xav tau ntau txhiab tus hauv paus pib ua tiav cov chaw muaj kev lag luam LTE ftte. Tab sis qhov nce 450 MHz teeb liab ntau thaj tsam tsuas yog yuav tsum tau ob peb puas puag pob kom ua tiav tib qho kev pab. Tom qab lub sijhawm ntev hauv ntxoov ntxoo, 450mHz zaus band tam sim no rau kev saib xyuas thiab cov kev sib pauv, thiab soj ntsuam cov xov tooj hluav taws xob ntse. 450 MHZ Networks tau ua raws li cov tes hauj lwm ntiag tug, tiv thaiv los ntawm firewalls, txuas nrog nws qhov xwm uas tiv thaiv lawv los ntawm cyberattacks.
Txij li 450 MHz Spectrum tau faib rau cov neeg ua haujlwm ntiag tug, nws feem ntau yuav pab tau cov neeg ua haujlwm tseem ceeb ntawm cov tswv cuab thiab xa cov tswv cuab network. Daim ntawv thov tseem ceeb ntawm no yuav yog qhov kev sib cuam tshuam ntawm cov koom tes nrog ntau yam thiab cov tsheb dav hlau thiab cov ntsuas xovtooj ntawm cov ntsiab lus tseem ceeb.
Tus 400 MHz tau siv nyob rau hauv cov tes haujlwm thiab ntiag tug tau ntau xyoo, feem ntau yog nyob hauv Europe. Piv txwv li, Lub teb chaws Yelemees siv CDMA, thaum Northern Europe, Brazil thiab Indonesia siv LTE. Cov neeg ua haujlwm German tsis ntev los no muab lub zog hluav taws xob nrog 450 MHz ntawm spectrum. Txoj cai lij choj sau cov chaw taws teeb tswj ntawm cov ntsiab lus tseem ceeb ntawm lub hwj huam sib chaws. Nyob rau hauv lub teb chaws Yelemees ib leeg, tsheej lab ntawm cov network tseem tos kom txuas tau, thiab 450 MHz spectrum yog qhov zoo tagnrho rau qhov no. Lwm lub teb chaws yuav ua raws, depusinging lawv sai dua.
Kev sib txuas lus tseem ceeb, nrog rau kev ua lag luam tseem ceeb, yog kev ua lag luam loj hlob uas nce rau lawv cov kev cai ib puag ncig, cov khoom siv hluav taws xob ib puag ncig, thiab tiv thaiv lawv cov pej xeem. Cov tub ceev xwm yuav tsum muaj kev tswj hwm cov khoom tseem ceeb, kev pabcuam thaum muaj xwm txheej ceev yuav tsum tau koom tes lawv cov haujlwm, thiab cov tuam txhab siv hluav taws xob yuav tsum tuaj yeem tswj tau daim phiaj.
Tsis tas li ntawd, kev loj hlob ntawm cov ntawv thov ntse hauv nroog uas yuav tsum muaj cov neeg sib txuas lus los txhawb nqa cov ntawv thov tseem ceeb. Qhov no tsis yog nyuam qhuav muaj xwm txheej ceev. Kev sib txuas lus tseem ceeb rau cov haujlwm tseem ceeb uas tsis tu ncua thiab siv tsis tu ncua. Qhov no yuav tsum muaj cov cwj pwm ntawm LTE 450, xws li tsis tshua muaj hluav taws xob, them tag nrho cov kev pab them nyiaj los txhawb audio thiab yees duab streaming.
Lub peev xwm ntawm 450 tau paub zoo hauv Tebchaws Europe, qhov twg lub zog kev lag luam tau ua tiav cov kev sib txuas lus tsawg (LPWA) siv lub suab sib txuas lus tsis muaj zog (LPWA) siv lub suab sib txuas lus tsawg Nqaim teb online ntawm yam.
Lub 450 MHz Band tau tsaug zog loj heev rau txoj haujlwm-tseem ceeb sib txuas lus nyob rau 2G thiab 3G era. Txawm li cas los xij, muaj tam sim no rov qab dua cov kev txaus siab ib ncig ntawm 450 MHz txhawb LATE Cat-M thiab NB-IOT, ua kom zoo tshaj rau cov ntawv thov IOT. Raws li cov khoom siv no txuas ntxiv, LTE 450 network yuav pab cov ntawv thov ntxiv thiab siv cov ntaub ntawv. Nrog rau cov paub thiab feem ntau cov cuab yeej siv hluav taws xob uas twb muaj lawm, nws yog qhov kev sib txuas lus zoo tshaj plaws rau kev sib txuas lus niaj hnub-kev sib txuas lus tseem ceeb. Nws tseem haum zoo nrog rau yav tom ntej ntawm 5g. Yog vim li cas 450 MHz yog txaus nyiam rau cov khoom siv network thiab cov kev daws teeb meem ua haujlwm niaj hnub no.
Lub sijhawm Post: Sep-08-2022
