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1. 发明申请

US20080133630A1 INTERPOLATION FIR FILTER HAVING MULTIPLE DATA RATES IN MOBILE COMMUNICATION SYSTEM AND METHOD OF FILTERING DATA USING THE SAME 有权
标题翻译：具有移动通信系统中的多个数据速率的插值FIR滤波器和使用该滤波器的数据过滤方法
公开(公告)号：US20080133630A1
公开(公告)日：2008-06-05
申请号：US11925712
申请日：2007-10-26
申请人： Young-Jo BANG , Youn-Ok PARK
发明人： Young-Jo BANG , Youn-Ok PARK
IPC分类号： G06F17/17
CPC分类号： H03H17/0657 , H04L25/03866 , H04L27/2626
摘要： The present invention relates to an interpolation FIR (finite impulse response) filter having multiple data rates in a mobile communication system, and a method of filtering data using the same. In the method of filtering data using the interpolation FIR filter, a first filter uses an FIR low pass filter that restricts a band to satisfy a bandwidth corresponding to a data spectrum mask required in the mobile communication system. The other filters use interpolation FIR halfband filters that are implemented by a small number of taps. Accordingly, the interpolation FIR filter having multiple data rates can be easily implemented, and can be easily applied to the mobile communication system that transmits and receives data having various data rates.
摘要翻译：本发明涉及移动通信系统中具有多个数据速率的内插FIR（有限脉冲响应）滤波器，以及使用该滤波器的数据过滤方法。在使用插值FIR滤波器对数据进行滤波的方法中，第一滤波器使用FIR低通滤波器，其限制频带以满足与移动通信系统中所需的数据频谱掩模相对应的带宽。其他滤波器使用由少量抽头实现的插值FIR半带滤波器。因此，具有多个数据速率的插值FIR滤波器可以容易地实现，并且可以容易地应用于发送和接收具有各种数据速率的数据的移动通信系统。

2. 发明申请

US20080137788A1 APPARATUS AND METHOD OF ESTIMATING CHANNEL BASED ON CHANNEL DELAY SPREAD IN MOBILE COMMUNICATION SYSTEM 有权
标题翻译：基于通信延迟传播的移动通信系统估计通道的装置和方法
公开(公告)号：US20080137788A1
公开(公告)日：2008-06-12
申请号：US11931188
申请日：2007-10-31
申请人： Young-Jo BANG , Kyung-Yeol SOHN , Youn-Ok PARK
发明人： Young-Jo BANG , Kyung-Yeol SOHN , Youn-Ok PARK
IPC分类号： H04B1/10
CPC分类号： H04L25/0236 , H04L5/0007 , H04L5/0048 , H04L25/0222 , H04L27/261
摘要： The present invention relates to an apparatus and method of estimating a channel based on a channel delay spread in a mobile communication system. Pilot subcarriers are inserted between data subcarriers at predetermined intervals to estimate a channel at locations of the pilot subcarriers. An approximate channel delay spread value is estimated by using an autocorrelation value of a pilot signal. Then, a channel for data subcarriers between the pilot subcarriers is estimated by using a Wiener finite impulse response (FIR) filter that has a separate coefficient according to the estimated delay spread value. Accordingly, by changing the Wiener FIR filter coefficient according to the delay spread value of the channel, it is possible to estimate the channel so as to be adaptive for a change of the channel over time. Since the filter coefficients, which are calculated in advance, are used, it is possible to reduce the amount of calculation required when calculating the filter coefficients. As a result, an apparatus for estimating a channel can be easily achieved.
摘要翻译：本发明涉及一种基于移动通信系统中的信道延迟扩展来估计信道的装置和方法。导频子载波以预定间隔插入数据子载波之间，以估计导频子载波位置处的信道。通过使用导频信号的自相关值来估计近似信道延迟扩展值。然后，通过使用根据估计的延迟扩展值具有单独系数的维纳有限脉冲响应（FIR）滤波器来估计导频子载波之间的数据子载波的信道。因此，通过根据信道的延迟扩展值改变维纳FIR滤波器系数，可以估计信道，以适应随时间变化的信道。由于使用预先计算的滤波器系数，因此可以减少计算滤波器系数时所需的计算量。结果，可以容易地实现用于估计通道的装置。

3. 发明申请

US20080137782A1 SIGNAL DETECTION METHOD AND RECEIVING APPARATUS IN MIMO SYSTEM 有权
标题翻译： MIMO系统中的信号检测方法和接收装置
公开(公告)号：US20080137782A1
公开(公告)日：2008-06-12
申请号：US11930047
申请日：2007-10-30
申请人： Seung-Jae BAHNG , Young-Jo BANG , Youn-Ok PARK
发明人： Seung-Jae BAHNG , Young-Jo BANG , Youn-Ok PARK
IPC分类号： H03D1/00 , H04L1/02
CPC分类号： H04B7/0413 , H04L1/0656 , H04L25/0204 , H04L25/0246
摘要： The present invention relates to a signal detection method and a receiving apparatus in a multiple input multiple output (MIMO) system. More particularly, the present invention relates to a signal detection device in a MIMO system using a spatial multiplexing (SM) method. In the signal detection method, a channel is estimated and layers are rearranged according to a predetermined layer arrangement rule. QR-decomposition is performed by using a rearranged system model, all constellation points in a symbol of a layer having the lowest reliability are considered, and symbols are detected by using a sequential interference elimination method.
摘要翻译：本发明涉及多输入多输出（MIMO）系统中的信号检测方法和接收装置。更具体地，本发明涉及使用空间复用（SM）方法的MIMO系统中的信号检测装置。在信号检测方法中，估计信道并根据预定层布置规则重新布置层。通过使用重排系统模型进行QR分解，考虑具有最低可靠性的层的符号中的所有星座点，并且通过使用顺序干扰消除方法来检测符号。

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