Ngakhale maukonde a LTE 450 akhala akugwiritsidwa ntchito m'maiko ambiri kwa zaka zambiri, pakhala chidwi chatsopano pa iwo pamene makampani akupita ku nthawi ya LTE ndi 5G. Kutha kwa 2G ndi kubwera kwa Narrowband Internet of Things (NB-IoT) ndi ena mwa misika yomwe ikuyendetsa kukhazikitsidwa kwa LTE 450.
Chifukwa chake ndi chakuti bandwidth yozungulira 450 MHz ndiyoyenerana ndi zosowa za zida za IoT ndi ntchito zofunikira kwambiri kuyambira ma gridi anzeru ndi ntchito zama metering anzeru kupita ku ntchito zachitetezo cha anthu. Gulu la 450 MHz limathandizira matekinoloje a CAT-M ndi Narrowband Internet of Things (NB-IoT), ndipo mawonekedwe a gululi ndi abwino kuphimba madera akuluakulu, kulola ogwiritsira ntchito ma cellular kuti apereke chithandizo chonse mopanda mtengo. Tiyeni tiwone bwino zaubwino wokhudzana ndi LTE 450 ndi IoT.
Kuphimba kwathunthu kumafuna zida za IoT kuti zichepetse kugwiritsa ntchito mphamvu kuti zikhale zolumikizidwa. Kulowera kozama koperekedwa ndi 450MHz LTE kumatanthauza kuti zida zimatha kulumikizana ndi netiweki popanda kuyesa kugwiritsa ntchito mphamvu nthawi zonse.
Chosiyanitsa chachikulu cha gulu la 450 MHz ndiutali wake wautali, womwe umawonjezera kufalikira. Magulu ambiri azamalonda a LTE ali pamwamba pa 1 GHz, ndi maukonde a 5G mpaka 39 GHz. Ma frequency apamwamba amapereka ma data apamwamba kwambiri, kotero kuti ma sipekitiramu ochulukirapo amaperekedwa kumaguluwa, koma izi zimabwera pamtengo wochepetsera ma siginecha mwachangu, zomwe zimafunikira maukonde owundana a malo oyambira.
Gulu la 450 MHz lili kumbali ina ya sipekitiramu. Mwachitsanzo, dziko laling'ono la Netherlands lingafunike masauzande masauzande ambiri kuti akwaniritse malo onse amalonda a LTE. Koma kuchuluka kwa ma siginecha a 450 MHz kumangofunika masiteshoni mazana angapo kuti akwaniritse zomwezo. Pambuyo pa nthawi yayitali pamithunzi, gulu la ma frequency 450MHz tsopano ndi msana wowunikira ndikuwongolera zida zofunika monga zosinthira, ma transmission node, ndi surveillance smart mita zipata. Maukonde a 450 MHz amamangidwa ngati maukonde achinsinsi, otetezedwa ndi ma firewall, olumikizidwa ndi dziko lakunja, lomwe mwachilengedwe chake limawateteza ku cyberattack.
Popeza mawonedwe a 450 MHz amaperekedwa kwa ogwira ntchito payekha, adzapereka zofunikira za ogwira ntchito zofunikira kwambiri monga zothandizira ndi eni eni eni ake. Ntchito yayikulu apa idzakhala kulumikizana kwa zinthu za netiweki ndi ma routers osiyanasiyana ndi zipata, komanso zipata zanzeru zama mita pazofunikira zazikulu za metering.
Gulu la 400 MHz lakhala likugwiritsidwa ntchito pagulu komanso pagulu kwazaka zambiri, makamaka ku Europe. Mwachitsanzo, Germany amagwiritsa ntchito CDMA, pamene Northern Europe, Brazil ndi Indonesia amagwiritsa LTE. Akuluakulu aku Germany posachedwapa adapereka gawo lamagetsi ndi 450 MHz ya sipekitiramu. Malamulo amalamula kuwongolera kutali kwa zinthu zofunika kwambiri za gridi yamagetsi. Ku Germany kokha, mamiliyoni azinthu zapaintaneti akuyembekezera kulumikizidwa, ndipo mawonekedwe a 450 MHz ndi abwino kwa izi. Mayiko ena adzatsatira, kuwatumiza mwachangu.
Kulankhulana kofunikira, komanso zomangamanga zofunikira, ndi msika womwe ukukula womwe ukuchulukirachulukira kumalamulo pomwe mayiko akugwira ntchito yochepetsa kuwononga chilengedwe, kuteteza mphamvu zamagetsi, ndikuteteza chitetezo cha nzika zawo. Akuluakulu akuyenera kuyang'anira zida zofunikira, ntchito zadzidzidzi ziyenera kugwirizanitsa ntchito zawo, ndipo makampani opanga mphamvu ayenera kuwongolera gridi.
Kuphatikiza apo, kukula kwa ntchito zamatawuni anzeru kumafuna maukonde okhazikika kuti athandizire ntchito zambiri zofunika. Uku sikulinso kuyankha mwadzidzidzi. Maukonde olumikizirana ofunikira ndi maziko omwe amagwiritsidwa ntchito pafupipafupi komanso mosalekeza. Izi zimafuna mawonekedwe a LTE 450, monga kugwiritsa ntchito mphamvu zochepa, kuphimba kwathunthu, ndi bandwidth ya LTE kuti athandizire kusuntha kwamavidiyo ndi mavidiyo.
Luso la LTE 450 ndi lodziwika bwino ku Europe, komwe makampani opanga magetsi apereka mwayi wofikira ku bandi ya 450 MHz ya LTE Low Power Communications (LPWA) pogwiritsa ntchito mawu, muyezo wa LTE ndi LTE-M mu 3GPP Release 16 ndi Narrowband Internet of Zinthu.
Gulu la 450 MHz lakhala chimphona chogona pakulankhulana kofunikira kwambiri mu nthawi ya 2G ndi 3G. Komabe, tsopano pali chidwi chatsopano popeza magulu ozungulira 450 MHz amathandizira LTE CAT-M ndi NB-IoT, kuwapanga kukhala abwino kwa mapulogalamu a IoT. Kutumiza uku kukupitilira, netiweki ya LTE 450 idzagwiritsa ntchito zambiri za IoT ndikugwiritsa ntchito. Ndi zida zodziwika bwino komanso zomwe zimapezeka nthawi zambiri, ndiye njira yabwino yolumikizirana ndi mishoni zamasiku ano. Zimagwirizananso bwino ndi tsogolo la 5G. Ichi ndichifukwa chake 450 MHz ndi yokongola pakuyika maukonde ndi mayankho ogwira ntchito masiku ano.
Nthawi yotumiza: Sep-08-2022
