公开(公告)号：US20040095951A1

公开(公告)日：2004-05-20

申请号：US10653154

申请日：2003-09-03

Applicant: LG Electronics Inc.

Inventor： Won-Hyoung Park

IPC: H04J003/16

CPC classification number: H03H17/0275 ,  H03H17/0225 ,  H03H2218/06

Abstract: A digital filter of a mobile communication system and an operating method thereof for processing digital signals inputted through plural channels: a first switch outputting digital signals, which are inputted through a plurality of channel paths, in a predetermined order with multiple rate; a filter unit processing signals inputted from the first switch in a poly-phase method; a second switch outputting output signals of the filter unit after dividing them by channels; and a clock unit for supplying clock signals to the first switch, the filter unit and the second switch. The digital filter of multi-channels can be integrated/miniaturized with one component and the filter processing rate can be improved.

Abstract translation: 一种用于处理通过多个通道输入的数字信号的移动通信系统的数字滤波器及其操作方法：以多个速率以预定顺序输出通过多个信道路径输入的数字信号的第一开关; 滤波单元，以多相方式处理从第一开关输入的信号; 第二开关，在通过频率分压后输出滤波器单元的输出信号; 以及用于向第一开关，滤波器单元和第二开关提供时钟信号的时钟单元。 多通道数字滤波器可以通过一个部件集成/小型化，并且可以提高滤波器处理速率。

公开(公告)号：US20030086480A1

公开(公告)日：2003-05-08

申请号：US10284258

申请日：2002-10-31

Applicant: LG Electronics Inc.

Inventor： Won-Hyoung Park ,  Tae-Hyun Kim

IPC: H04B001/707

CPC classification number: H04B1/707 ,  H04B2201/70706

Abstract: A peak cancellation apparatus is included in a base station transmission unit to cancel the peak component of the peak signal. Thus, the base station transmission unit can be implemented with a lower capacity power amplifier. In addition, an existing power amplifier can be replaced with a low-priced power amplifier, so that an expense can be reduced. Moreover, since only the digital signal having the limited PAR is used, the degradation of the signal quality caused in conversion of the digital signal to the analog signal can be prevented. The peak cancellation apparatus includes a peak cancellation unit positioned between a multiplier and a pulse shaping filter or between the pulse shaping filter and a D/A converter and removing a peak component of the peak signal.

Abstract translation: 峰值消除装置包括在基站传输单元中以消除峰值信号的峰值分量。 因此，基站传输单元可以用较低容量的功率放大器来实现。 此外，现有的功率放大器可以用低价功率放大器代替，从而可以降低费用。 此外，由于仅使用具有有限PAR的数字信号，可以防止在将数字信号转换为模拟信号时引起的信号质量的劣化。 峰值消除装置包括位于乘法器和脉冲整形滤波器之间或在脉冲整形滤波器和D / A转换器之间并去除峰值信号的峰值分量的峰值消除单元。