Lub luag haujlwm tseem ceeb ntawm C-band hauv 5G networks thiab nws qhov tseem ceeb

C-band, yog ib qho radio spectrum uas muaj 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 cov kev pabcuam 5G ceev ceev, qis latency, thiab dav dav.

1. Kev them nqi sib npaug thiab kev sib kis ceev

C-band yog ib feem ntawm qhov nruab nrab-band spectrum, uas tuaj yeem muab qhov sib npaug zoo tagnrho ntawm kev npog thiab kev xa cov ntaub ntawv ceev. Piv nrog rau qis-band, C-band tuaj yeem muab cov ntaub ntawv xa mus rau ntau dua; thiab piv nrog cov kab zaus siab (xws li millimeter waves), C-band muaj kev npog dav dua. Qhov sib npaug no ua rau C-band tsim nyog heev rau kev xa cov tes hauj lwm 5G hauv nroog thiab thaj chaw nyob ib puag ncig, kom ntseeg tau tias cov neeg siv tau txais kev sib txuas ceev thaum txo cov chaw nres tsheb hauv paus.

2. Muaj ntau yam kev pab cuam spectrum

C-band muab cov bandwidth dav dav los txhawb nqa cov ntaub ntawv muaj peev xwm ntau dua. Piv txwv li, Federal Communications Commission (FCC) ntawm Tebchaws Meskas tau muab 280 MHz ntawm cov spectrum nruab nrab rau 5G hauv C-band thiab tau muag nws thaum kawg ntawm xyoo 2020. Cov neeg teb xov tooj xws li Verizon thiab AT&T tau txais ntau cov peev txheej spectrum hauv qhov kev muag khoom no, muab lub hauv paus ruaj khov rau lawv cov kev pabcuam 5G.

3. Txhawb nqa 5G thev naus laus zis siab heev

Cov yam ntxwv ntawm C-band ua rau nws txhawb nqa cov thev naus laus zis tseem ceeb hauv 5G tes hauj lwm, xws li massive MIMO (multiple-input multiple-output) thiab beamforming. Cov thev naus laus zis no tuaj yeem txhim kho kev ua haujlwm spectrum, txhim kho lub peev xwm network, thiab txhim kho kev paub ntawm tus neeg siv. Tsis tas li ntawd, qhov zoo ntawm bandwidth ntawm C-band ua rau nws ua tau raws li qhov xav tau ntawm kev kub ceev thiab qis-latency ntawm cov ntawv thov 5G yav tom ntej, xws li augmented reality (AR), virtual reality (VR), thiab Internet of Things (IoT).

4. Daim ntawv thov dav thoob ntiaj teb

Ntau lub teb chaws thiab thaj chaw tau siv C-band ua lub zaus tseem ceeb rau 5G tes hauj lwm. Piv txwv li, feem ntau lub teb chaws hauv Tebchaws Europe thiab Asia siv n78 band (3.3 txog 3.8 GHz), thaum Tebchaws Meskas siv n77 band (3.3 txog 4.2 GHz). Qhov kev sib xws thoob ntiaj teb no pab tsim kom muaj kev sib koom ua ke ntawm 5G ecosystem, txhawb kev sib raug zoo ntawm cov khoom siv thiab cov thev naus laus zis, thiab ua kom muaj kev nrov npe thiab kev siv 5G.

5. Txhawb kev siv 5G rau kev lag luam

Kev npaj thiab kev faib cov C-band spectrum meej meej tau ua rau kev xa tawm 5G networks ua lag luam sai dua. Hauv Suav teb, Ministry of Industry and Information Technology tau teev meej meej cov 3300-3400 MHz (siv sab hauv tsev), 3400-3600 MHz thiab 4800-5000 MHz bands ua cov bands ua haujlwm ntawm 5G systems. Kev npaj no muab kev taw qhia meej rau kev tshawb fawb thiab kev txhim kho thiab kev lag luam ntawm cov khoom siv system, chips, terminals thiab cov cuab yeej kuaj, thiab txhawb kev lag luam ntawm 5G.

Hauv kev xaus lus, C-band ua lub luag haujlwm tseem ceeb hauv 5G tes hauj lwm. Nws cov txiaj ntsig hauv kev npog, kev xa xov ceev, cov peev txheej spectrum thiab kev txhawb nqa kev siv tshuab ua rau nws yog lub hauv paus tseem ceeb rau kev ua tiav lub zeem muag 5G. Thaum kev xa tawm thoob ntiaj teb 5G nce qib, lub luag haujlwm ntawm C-band yuav tseem ceeb zuj zus, coj cov neeg siv kev sib txuas lus zoo dua.