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1. 发明申请

WO2005032087A1 APPARATUS AND METHOD FOR DIGITALLY IMPLEMENTING A WIDEBAND MULTICARRIER 审中-公开
标题翻译：用于数字实现宽带多媒体的装置和方法
公开(公告)号：WO2005032087A1
公开(公告)日：2005-04-07
申请号：PCT/KR2004/002467
申请日：2004-09-24
申请人： UTSTARCOM KOREA LIMITED , JEONG, Eui Rim
发明人： JEONG, Eui Rim
IPC分类号： H04L27/26
CPC分类号： H04L25/03834 , H03C3/40 , H04B1/707 , H04L5/06 , H04L27/2637 , H04L27/2644
摘要： The present invention relates to an apparatus and a method for implementing a wideband multicarrier by using complex digital modulation. With a conventional analog quadrature modulation, which has been used to modulate a complex digital signal into an intermediate frequency (IF) signal or a radio frequency signal, it is difficult to obtain a precise local oscillator signal. Analog circuits, as many as the number of desired carrier signals in a multicarrier, are required. However, the invention implements a wideband multicarrier by newly employing a digital channelizer and a digital IF modulation portion. Since the former can efficiently generate a plurality of carrier signals having different center frequencies and the latter can up-convert the generated carrier signals into a desired multicarrier, the invention can obtain a more reliable wideband multicarrier and implement a wideband multicarrier in a cost-effective manner.
摘要翻译：本发明涉及通过使用复数数字调制来实现宽带多载波的装置和方法。使用已经用于将复数数字信号调制成中频（IF）信号或射频信号的常规模拟正交调制，难以获得精确的本地振荡器信号。需要与多载波中所需的载波信号数量一样多的模拟电路。然而，本发明通过新采用数字信道化器和数字IF调制部分来实现宽带多载波。由于前者可以有效地产生具有不同中心频率的多个载波信号，并且后者可以将所生成的载波信号上变频成所需的多载波，本发明可以获得更可靠的宽带多载波，并以成本有效的方式实现宽带多载波方式。

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