Cov xim spectrum:
● Ua haujlwm hla ntau hom zaus ntawm sub-1GHz mus rau mmWave (>24 GHz)
● Siv cov bands qis <1 GHz, cov bands nruab nrab 1-6 GHz, thiab cov bands siab mmWave 24-40 GHz
● Sub-6 GHz muab kev pabcuam dav dav rau macro cell, mmWave ua rau muaj kev xa tawm me me ntawm cov cell
Cov Nta Kev Txawj:
● Txhawb cov channel bandwidths loj dua txog li 400 MHz piv rau 20 MHz hauv LTE, ua kom spectral efficiency nce ntxiv
● Siv cov thev naus laus zis ntau lub kav hlau txais xov xws li MU-MIMO, SU-MIMO, thiab beamforming
● Kev hloov kho beamforming nrog precoding tsom mus rau lub zog teeb liab hauv qee qhov kev taw qhia kom txhim kho kev npog
● Cov phiaj xwm modulation txog li 1024-QAM ua rau cov ntaub ntawv nce siab tshaj plaws piv rau 256-QAM hauv 4G
● Kev hloov kho modulation thiab coding kho qhov modulation thiab coding rate raws li cov xwm txheej ntawm channel
● Tus lej lej OFDM tshiab uas muaj peev xwm nthuav dav nrog qhov sib nrug ntawm subcarrier txij li 15 kHz txog 480 kHz sib npaug ntawm kev npog thiab peev xwm
● Cov TDD subframes uas muaj nws tus kheej tshem tawm lub sijhawm tiv thaiv ntawm DL/UL switching
● Cov txheej txheem txheej txheem tshiab xws li kev nkag mus rau kev tso cai tau teeb tsa zoo dua qhov latency
● Kev faib tawm network kawg-rau-kawg muab kev kho QoS sib txawv rau ntau yam kev pabcuam
● Kev tsim qauv network siab heev thiab QoS framework ua tau raws li cov kev cai ntawm eMBB, URLLC, thiab mMTC siv cov ntaub ntawv
Hauv kev xaus lus, NR muab kev txhim kho zoo dua LTE hauv kev hloov pauv spectrum, bandwidth, modulation, beamforming, thiab latency los txhawb qhov kev xav tau ntawm 5G cov kev pabcuam. Nws yog lub hauv paus thev naus laus zis sib txuas lus huab cua uas ua rau 5G xa tawm.
Cov khoom siv kub muag customized notch filter, lowpass filter, highpass filter thiab bandpass filter yog siv dav hauv 5G NR daim ntawv thov. Yog xav paub ntxiv, thov mus saib peb lub vev xaib: www.concept-mw.com lossis xa ntawv rau peb:sales@concept-mw.com
Lub sijhawm tshaj tawm: Cuaj hlis-14-2023