1250MHz zaus band nyob rau hauv txoj haujlwm tseem ceeb hauv xov tooj cua spectrum thiab tau siv dav hauv kev lag luam xws li kev sib txuas lus satellite thiab navigation systems. Nws ntev teeb liab kis tau tus mob nyob deb thiab tsis tshua muaj attenuation muab nws tshwj xeeb zoo nyob rau hauv tej kev siv.
Cov cheeb tsam tseem ceeb ntawm daim ntawv thov:
Kev sib txuas lus satellite: 1250MHz zaus band yog siv rau kev sib txuas lus ntawm satellites thiab hauv av chaw nres tsheb. Txoj kev sib txuas lus no tuaj yeem ua tiav qhov kev pab cuam dav dav, muaj qhov zoo ntawm qhov ntev ntawm cov teeb liab kis tau tus mob thiab muaj peev xwm tiv thaiv kev cuam tshuam, thiab tau siv dav hauv kev lag luam xws li kev tshaj tawm xov tooj cua, xov tooj ntawm tes thiab xov tooj cua tshaj tawm xov xwm.
Navigation system: Hauv 1250MHz zaus band, L2 zaus band ntawm Global Satellite Positioning System (GNSS) siv qhov zaus no rau qhov tseeb qhov chaw thiab taug qab. GNSS yog dav siv hauv kev thauj mus los, aerospace, nkoj navigation thiab tshawb nrhiav geological.
Cov xwm txheej tam sim no ntawm kev faib spectrum:
Raws li "Radio Frequency Allocation Regulations of the People's Republic of China", kuv lub teb chaws tau ua cov ncauj lus kom ntxaws ntawm cov xov tooj cua zaus kom tau raws li cov kev xav tau ntawm cov lag luam sib txawv.
Txawm li cas los xij, cov ntaub ntawv qhia tshwj xeeb ntawm 1250MHz zaus band tsis tau piav qhia hauv cov ntaub ntawv pej xeem.
International spectrum allocation dynamics:
Thaum Lub Peb Hlis 2024, US Senators tau tshaj tawm Txoj Cai Spectrum Pipeline Act ntawm 2024, thov kom auction qee zaus bands ntawm 1.3GHz thiab 13.2GHz, tag nrho 1250MHz ntawm cov peev txheej spectrum, los txhawb kev txhim kho kev lag luam 5G tes hauj lwm.
Yav tom ntej Outlook:
Nrog txoj kev loj hlob sai ntawm kev sib txuas lus wireless technology, qhov kev thov rau cov peev txheej spectrum tau loj hlob. Tsoom fwv thiab cov koom haum cuam tshuam tau hloov kho cov tswv yim faib cov spectrum kom tau raws li cov kev xav tau ntawm cov thev naus laus zis tshiab thiab cov kev pabcuam. Raws li qhov nruab nrab-band spectrum, 1250MHz band muaj cov yam ntxwv zoo tshaj plaws thiab yuav siv tau rau ntau thaj chaw yav tom ntej.
Nyob rau hauv cov ntsiab lus, 1250MHz band yog tam sim no tsuas yog siv nyob rau hauv satellite kev sib txuas lus thiab navigation systems. Nrog rau kev txhim kho thev naus laus zis thiab kev hloov pauv ntawm spectrum tswj cov cai, daim ntawv thov kev pab cuam ntawm pawg no yuav tsum tau nthuav dav ntxiv.
Post lub sij hawm: Dec-10-2024
