從歐洲NEW-6G研發(fā)活動(dòng)來(lái)看,主要考慮的是如何利用納米技術(shù)、電信、硬件、軟件、網(wǎng)絡(luò)和設(shè)備來(lái)滿足性能和服務(wù)質(zhì)量標(biāo)準(zhǔn),以及社會(huì)期望和可持續(xù)發(fā)展要求。研究領(lǐng)域包括:
·網(wǎng)絡(luò)架構(gòu)和優(yōu)化、協(xié)議和數(shù)據(jù)流;
·信息和基礎(chǔ)設(shè)施安全;
·集成電路、數(shù)字元件、高性能RF和低能耗技術(shù);
·高效的集成天線解決方案;
·專用、高性能、可持續(xù)半導(dǎo)體技術(shù)。
已經(jīng)浮出水面的6G應(yīng)用場(chǎng)景涉及的最重要方面是高精度定位和高分辨率感知,與汽車應(yīng)用關(guān)系很大。其新興技術(shù)促成因素包括人工智能(AI)和機(jī)器學(xué)習(xí)(ML)技術(shù)、使用無(wú)線電頻譜的新頻率,以及智能曲面、智能波束空間處理。
6G賦能技術(shù)的汽車應(yīng)用機(jī)會(huì)和技術(shù)挑戰(zhàn)
6G系統(tǒng)將是真正的智能無(wú)線系統(tǒng),不僅能提供無(wú)處不在的通信,還能提供高精度定位和高分辨率感知服務(wù)。它將通過(guò)一組獨(dú)特新功能和服務(wù)能力成為這場(chǎng)革命的催化劑,其中定位和感知將與通信共存,可在時(shí)間、頻率和空間上不斷共享可用資源。
·太赫茲頻段
太赫茲是6G數(shù)據(jù)傳播的關(guān)鍵技術(shù),是頻率遠(yuǎn)高出5G的頻段,1太赫茲等于1,000,000,000,000Hz。它是一種新的、有很多獨(dú)特優(yōu)點(diǎn)的輻射源。利用太赫茲的6G同步定位與映射(SLAM)方法不僅可以實(shí)現(xiàn)先進(jìn)交叉現(xiàn)實(shí)(XR)應(yīng)用,還可增強(qiáng)車輛和無(wú)人機(jī)等自動(dòng)行進(jìn)物體的導(dǎo)航能力。在融合式6G雷達(dá)和通信系統(tǒng)中,被動(dòng)和主動(dòng)雷達(dá)將同時(shí)使用和共享信息,提供豐富而準(zhǔn)確的虛擬環(huán)境圖像。
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