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提到宽带无线技术,人们自然会想到目前三类成熟产品。第一类是提供2Mbit/s速率的产品,如微波一点多址系统;第二类是LMDS(Local Multipoint Distribu-tion System)以及MMDS(Multipoint Microwave Distribu-tion System)系统;第三类是按IEEE、无线ATM论坛和ETSI推出的标准构成的系统,最为人熟知的是IEEE802.11、IEEE 802.11b、IEEE 802.11a和IEEE 802.11g。还有其他技术,诸如宽带移动无线技术(分为地面移动3G和卫星移动3G、U-11(Unlicensed National Informa-tion Infrastrure,俗称5G无线技术)、3.5G技术、无线光通信技术等。而超宽带无线技术却鲜为人知。
Mentioned the broadband wireless technology, people naturally think of the current three types of mature products. The first category is to provide 2Mbit / s rate products, such as microwave one-point multiple access systems; the second category is LMDS (Local Multipoint Distribu tion System) and MMDS (Multipoint Microwave Distribu tion System) system; the third category is based on IEEE , The Wireless ATM Forum and ETSI, are the most well-known systems that are IEEE 802.11, IEEE 802.11b, IEEE 802.11a, and IEEE 802.11g. There are other technologies, such as broadband mobile wireless technology (divided into terrestrial mobile 3G and satellite mobile 3G, U-11 (Unlicensed National Informatization Infrastrure, 3.5G technology, wireless optical communication technology, etc.) Broadband wireless technology is little known.