专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明申请

US20080205532A1 Carrier Allocation Method In Ofdm System And Transmittting Apparatus Using The Method 有权
标题翻译：使用该方法的OFDM系统和传送装置中的载波分配方法
公开(公告)号：US20080205532A1
公开(公告)日：2008-08-28
申请号：US11722028
申请日：2005-05-11
申请人： Hyeong-Sook Park , Youn-Ok Park
发明人： Hyeong-Sook Park , Youn-Ok Park
IPC分类号： H04L27/28
CPC分类号： H04L27/2608
摘要： The present invention relates to a method for allocating subcarriers in an orthogonal frequency division multiplex (OFDM) system, and a transmitter thereof. In the OFDM system according to an exemplary embodiment of the present invention, the subcarrier allocation is performed in the buffer (10) before a modulation mapping operation is performed according to a modulation method such that the delay may not be generated in the subchannel formed on the symbol axis. The delay corresponding to the symbols is prevented without using any additional hardware for eliminating the delay generated when the subcarriers are allocated to the subchannel formed on the symbol axis.
摘要翻译：本发明涉及一种用于在正交频分复用（OFDM）系统中分配子载波的方法及其发射机。在根据本发明的示例性实施例的OFDM系统中，在根据调制方法执行调制映射操作之前，在缓冲器（10）中执行子载波分配，使得可以在形成的子信道中不产生延迟符号轴。防止对应于符号的延迟，而不使用任何额外的硬件来消除当子载波被分配到在符号轴上形成的子信道时产生的延迟。

12. 发明申请

US20070133460A1 Apparatus and method for processing ranging channel of communication system 有权
标题翻译：通信系统测距信道处理装置及方法
公开(公告)号：US20070133460A1
公开(公告)日：2007-06-14
申请号：US11636814
申请日：2006-12-11
申请人： Kyung-Yeol Sohn , Hyeong-Sook Park , Youn-Ok Park
发明人： Kyung-Yeol Sohn , Hyeong-Sook Park , Youn-Ok Park
IPC分类号： H04Q7/00 , H04L12/28
CPC分类号： H04B17/318
摘要： Disclosed herein is a base station that extracts a ranging channel signal from a received signal partially correlates each of a plurality of ranging channel signals and each of ranging codes according to ranging modes, and selects a ranging channel signal greater than a first threshold value, the plurality of ranging channel signals being signals according to plurality of time delays of a ranging channel signal. In addition, the base station correlates each of the selected ranging channel signal and each of corresponding ranging code, selects a ranging channel signal having the maximum correlation value, and estimates receiving power by using a time delay corresponding to the selected ranging channel signal.
摘要翻译：本文公开了一种从接收信号中提取测距信道信号的基站，根据测距模式对多个测距信道信号和测距码中的每一个进行部分相关，并选择大于第一阈值的测距信道信号，多个测距信道信号是根据测距信道信号的多个时间延迟的信号。此外，基站将所选择的测距信道信号和每个对应的测距码相关，选择具有最大相关值的测距信道信号，并且通过使用与所选择的测距信道信号相对应的时间延迟来估计接收功率。

13. 发明授权

US08406320B2 Digital clipping method for a transmitter of an orthogonal frequency division multiple access system 有权
标题翻译：用于正交频分多址系统的发射机的数字裁剪方法
公开(公告)号：US08406320B2
公开(公告)日：2013-03-26
申请号：US11721156
申请日：2005-10-26
申请人： Hyeong-Sook Park , Youn-Ok Park
发明人： Hyeong-Sook Park , Youn-Ok Park
IPC分类号： H04L27/28
CPC分类号： H04L27/2624
摘要： The present invention relates to a digital clipping method for reducing a high peak-to-average power ratio (PAPR) of a transmission signal in a transmitter of an orthogonal frequency division multiplexing access (OFDMA) system. In the method, a) the transmission signal to be digitally clipped is divided into real and imaginary parts, b) magnitudes of the real and imaginary part signals are divided into a plurality clipping levels, and c) the transmission signal is respectively clipped by comparing the real and imaginary part signals with the plurality of clipping levels while allowing phase errors. In c), a plurality of comparators is used to respectively compare the real and imaginary parts of the complex number transmission signal with the plurality of clipping levels.
摘要翻译：本发明涉及一种用于降低正交频分多路复用接入（OFDMA）系统的发射机中的发送信号的高峰值与平均功率比（PAPR）的数字削波方法。在该方法中，a）要被数字剪切的传输信号被划分成实部和虚部，b）实部和虚部信号的大小被分成多个削波电平，c）通过比较来分别传输发送信号具有多个限幅电平的实部和虚部信号同时允许相位误差。在c）中，使用多个比较器来分别比较复数传输信号的实部和虚部与多个限幅电平。

14. 发明申请

US20100046662A1 DIGITAL CLIPPING METHOD FOR A TRANSMITTER OF AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 有权
标题翻译：正交频分多址接入系统发射机的数字剪辑方法
公开(公告)号：US20100046662A1
公开(公告)日：2010-02-25
申请号：US11721156
申请日：2005-10-26
申请人： Hyeong-Sook Park , Youn-Ok Park
发明人： Hyeong-Sook Park , Youn-Ok Park
IPC分类号： H04L27/00
CPC分类号： H04L27/2624
摘要： The present invention relates to a digital clipping method for reducing a high peak-to-average power ratio (PAPR) of a transmission signal in a transmitter of an orthogonal frequency division multiplexing access (OFDMA) system. In the method, a) the transmission signal to be digitally clipped is divided into real and imaginary parts, b) magnitudes of the real and imaginary part signals are divided into a plurality clipping levels, and c) the transmission signal is respectively clipped by comparing the real and imaginary part signals with the plurality of clipping levels while allowing phase errors. In c), a plurality of comparators is used to respectively compare the real and imaginary parts of the complex number transmission signal with the plurality of clipping levels.
摘要翻译：本发明涉及一种用于降低正交频分多路复用接入（OFDMA）系统的发射机中的发送信号的高峰值与平均功率比（PAPR）的数字削波方法。在该方法中，a）要被数字剪切的传输信号被划分成实部和虚部，b）实部和虚部信号的大小被分成多个削波电平，c）通过比较来分别传输发送信号具有多个限幅电平的实部和虚部信号同时允许相位误差。在c）中，使用多个比较器来分别比较复数传输信号的实部和虚部与多个限幅电平。

15. 发明授权

US08199738B2 Apparatus and method for processing ranging channel of communication system 有权
标题翻译：通信系统测距信道处理装置及方法
公开(公告)号：US08199738B2
公开(公告)日：2012-06-12
申请号：US11636814
申请日：2006-12-11
申请人： Kyung-Yeol Sohn , Hyeong-Sook Park , Youn-Ok Park
发明人： Kyung-Yeol Sohn , Hyeong-Sook Park , Youn-Ok Park
IPC分类号： H04J1/00
CPC分类号： H04B17/318
摘要： Disclosed herein is a base station that extracts a ranging channel signal from a received signal partially correlates each of a plurality of ranging channel signals and each of ranging codes according to ranging modes, and selects a ranging channel signal greater than a first threshold value, the plurality of ranging channel signals being signals according to plurality of time delays of a ranging channel signal. In addition, the base station correlates each of the selected ranging channel signal and each of corresponding ranging code, selects a ranging channel signal having the maximum correlation value, and estimates receiving power by using a time delay corresponding to the selected ranging channel signal.
摘要翻译：本文公开了一种从接收信号中提取测距信道信号的基站，根据测距模式对多个测距信道信号和测距码中的每一个进行部分相关，并选择大于第一阈值的测距信道信号，多个测距信道信号是根据测距信道信号的多个时间延迟的信号。此外，基站将所选择的测距信道信号和每个对应的测距码相关，选择具有最大相关值的测距信道信号，并且通过使用与所选择的测距信道信号相对应的时间延迟来估计接收功率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式