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    • 2. 发明授权
    • Double-layer multi-carrier ultra-wideband wireless communication method
    • 双层多载波超宽带无线通信方式
    • US08867587B2
    • 2014-10-21
    • US13511993
    • 2009-12-29
    • Zaichen ZhangJian DangXiaoyan WangGuangguo BiXutao Yu
    • Zaichen ZhangJian DangXiaoyan WangGuangguo BiXutao Yu
    • H04B1/00
    • H04L5/0007H04L27/264H04L27/2653
    • The present invention is a double-layer multi-carrier ultra-wideband wireless communication method, wherein the frequency band for ultra-wideband communication is divided into a plurality of sub-bands, then one or more sub-bands are used for data transmission, and the Orthogonal Frequency Division Multiplex (OFDM) multi-carrier transmission technology is used in each sub-band. In the transmitting party, the data symbols to be transmitted are allocated on M branches corresponding to the M sub-bands, and the OFDM modulation is implemented on the data symbols on each branch to obtain M branches of parallel data, then digital baseband multi-carrier modulation is implemented on the M branches of parallel data. Thereby, the spectrum of data on each branch is moved onto the digital sub-band corresponding to the radio sub-band one to one, so the digital baseband signal of the radio signal to be transmitted is obtained. Then, the digital signal is converted to an analog signal with a D/A conversion and an up-conversion, and the signal spectrum is moved to the radio frequency band in use, then the analog signal is amplified, filtered and transmitted via an antenna, thus the task of modulating M branches of parallel data onto M sub-bands is completed.
    • 本发明是一种双层多载波超宽带无线通信方法,其中用于超宽带通信的频带被划分为多个子带,然后使用一个或多个子带进行数据传输, 并且在每个子带中使用正交频分复用(OFDM)多载波传输技术。 在发送方中,将要发送的数据符号分配在对应于M个子带的M个分支上,并且在每个分支上的数据符号上实施OFDM调制以获得并行数据的M个分支, 在并行数据的M个分支上实现载波调制。 由此,将各分支的数据频谱一一对应地移动到与无线子带对应的数字子带上,得到要发送的无线信号的数字基带信号。 然后,数字信号被转换成具有D / A转换和上变频的模拟信号,并且信号频谱被移动到使用中的无线电频带,然后模拟信号经由天线被放大,滤波和发送 因此完成将并行数据的M个分支调制到M个子带上的任务。