C-band, lub xov tooj cua spectrum nrog ntau zaus ntawm 3.4 GHz thiab 4.2 GHz, ua lub luag haujlwm tseem ceeb hauv 5G tes hauj lwm. Nws cov yam ntxwv tshwj xeeb ua rau nws yog qhov tseem ceeb rau kev ua tiav high-speed, low-latency, thiab dav-kev pab cuam 5G.
1. Sib npaug kev pab cuam thiab kis ceev
C-band belongs rau mid-band spectrum, uas tuaj yeem muab qhov sib npaug zoo tshaj plaws ntawm kev pab them nqi thiab cov ntaub ntawv xa mus ceev. Piv nrog rau qis-band, C-band tuaj yeem muab cov ntaub ntawv xa mus ntau dua; thiab piv nrog cov bands siab (xws li millimeter nthwv dej), C-band muaj qhov dav dua. Qhov nyiaj tshuav no ua rau C-band tsim nyog rau kev xa 5G tes hauj lwm hauv nroog thiab suburban ib puag ncig, kom ntseeg tau tias cov neeg siv tau txais kev sib txuas ceev ceev thaum txo cov chaw nres tsheb hauv paus.
2. Muaj peev txheej spectrum
C-band muab qhov dav spectrum bandwidth los txhawb cov ntaub ntawv muaj peev xwm ntau dua. Piv txwv li, Tsoom Fwv Teb Chaws Kev Sib Txuas Lus (FCC) ntawm Tebchaws Meskas tau faib 280 MHz ntawm mid-band spectrum rau 5G hauv C-band thiab tau muag nws thaum kawg ntawm 2020. Cov neeg ua haujlwm xws li Verizon thiab AT&T tau txais ntau qhov spectrum. cov peev txheej hauv kev sib tw no, muab lub hauv paus ruaj khov rau lawv cov kev pabcuam 5G.
3. Txhawb nqa 5G thev naus laus zis
Cov yam ntxwv zaus ntawm C-band ua kom nws muaj txiaj ntsig zoo txhawb cov thev naus laus zis tseem ceeb hauv 5G tes hauj lwm, xws li MIMO loj heev (ntau qhov kev tawm tswv yim ntau-tso tawm) thiab beamforming. Cov thev naus laus zis no tuaj yeem txhim kho spectrum efficiency, txhim khu lub peev xwm network, thiab txhim kho cov neeg siv kev paub. Tsis tas li ntawd, qhov txiaj ntsig bandwidth ntawm C-band ua rau nws ua tau raws li qhov xav tau ntawm kev kub ceev thiab qis qis ntawm 5G kev siv yav tom ntej, xws li augmented reality (AR), virtual reality (VR), thiab Internet ntawm Yam (IoT). ).
4. Daim ntawv thov dav thoob ntiaj teb
Ntau lub teb chaws thiab cheeb tsam tau siv C-band ua qhov loj zaus band rau 5G tes hauj lwm. Piv txwv li, feem ntau lub tebchaws nyob sab Europe thiab Asia siv n78 band (3.3 txog 3.8 GHz), thaum lub tebchaws United States siv n77 band (3.3 rau 4.2 GHz). Qhov kev sib raug zoo thoob ntiaj teb no pab tsim kom muaj kev sib koom ua ke 5G ecosystem, txhawb kev sib raug zoo ntawm cov cuab yeej siv thiab thev naus laus zis, thiab ua kom nrov nrov thiab siv 5G.
5. Txhawb nqa 5G kev lag luam xa tawm
Cov phiaj xwm meej thiab kev faib tawm ntawm C-band spectrum tau ua kom muaj kev lag luam xa mus rau 5G tes hauj lwm. Hauv Suav teb, Ministry of Industry thiab Information Technology tau pom meej meej tias 3300-3400 MHz (siv sab hauv hauv paus ntsiab lus), 3400-3600 MHz thiab 4800-5000 MHz bands ua haujlwm ua haujlwm ntawm 5G systems. Qhov kev npaj no muab cov lus qhia meej rau kev tshawb fawb thiab kev tsim kho thiab kev lag luam ntawm cov cuab yeej siv, chips, terminals thiab ntsuas ntsuas, thiab txhawb kev lag luam ntawm 5G.
Hauv cov ntsiab lus, C-band ua lub luag haujlwm tseem ceeb hauv 5G tes hauj lwm. Nws qhov zoo hauv kev them nqi, kev sib kis ceev, cov peev txheej spectrum thiab kev txhawb nqa kev ua haujlwm ua rau nws yog lub hauv paus tseem ceeb rau kev paub txog 5G lub zeem muag. Raws li kev xa mus thoob ntiaj teb 5G tau nce zuj zus, lub luag haujlwm ntawm C-band yuav dhau los ua qhov tseem ceeb, coj cov neeg siv kev sib txuas lus zoo dua.
Post lub sij hawm: Dec-12-2024
