公开(公告)号：US20050107036A1

公开(公告)日：2005-05-19

申请号：US10993192

申请日：2004-11-19

申请人： Bong-Gee Song ,  Yun-Sang Park ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Min-Hee Cho ,  Hyeong-Jong Ju ,  Jae-Hee Cho

发明人： Bong-Gee Song ,  Yun-Sang Park ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Min-Hee Cho ,  Hyeong-Jong Ju ,  Jae-Hee Cho

IPC分类号： H04L1/00 ,  H04W48/12 ,  H04Q7/20

CPC分类号： H04W48/12 ,  H04L1/0004 ,  H04L1/0009 ,  H04L1/001 ,  H04L1/0017 ,  H04L2001/0093 ,  H04L2001/0098

摘要： A method for transmitting common control information from a base station to a plurality of subscriber stations in a wireless communication. The common control information includes first information transmitted in common to all of the subscriber stations and second information separately transmitted to the subscriber stations according to channel states of the subscriber stations. The first information is transmitted using an MCS (Modulation and Coding Scheme) level having a modulation scheme with a lowest order and a coding scheme with a lowest coding rate among all MCS levels available in the base station. The second information is transmitted using MCS levels that are adjusted by a predetermined level against MCS levels corresponding to channel states of the subscriber stations.

摘要翻译： 一种用于在无线通信中从基站向多个用户站发送公共控制信息的方法。 公共控制信息包括根据用户站的信道状态共同向所有用户站发送的第一信息和分别发送给用户站的第二信息。 使用具有最低次序的调制方案的MCS（调制和编码方案）级别和在基站中可用的所有MCS级别中具有最低编码率的编码方案来发送第一信息。 使用针对与用户站的信道状态相对应的MCS级别按预定级别调整的MCS级别来发送第二信息。

公开(公告)号：US20080130605A1

公开(公告)日：2008-06-05

申请号：US12018644

申请日：2008-01-23

申请人： Bong-Gee Song ,  Yun-Sang Park ,  Kwang-Seop Eom ,  Saung-Eun Hong ,  Min-Hoe Cho ,  Hyeong-Jong Ju ,  Jae-Hee Cho

发明人： Bong-Gee Song ,  Yun-Sang Park ,  Kwang-Seop Eom ,  Saung-Eun Hong ,  Min-Hoe Cho ,  Hyeong-Jong Ju ,  Jae-Hee Cho

IPC分类号： H04Q7/24

CPC分类号： H04W48/12 ,  H04L1/0004 ,  H04L1/0009 ,  H04L1/001 ,  H04L1/0017 ,  H04L2001/0093 ,  H04L2001/0098

摘要： A method for receiving common control information from a base station to a plurality of subscriber stations in a wireless communication is provided. The common control information includes first information that all of the plurality of subscriber stations commonly receive and second information that the plurality of subscriber stations separately receive according to channel states of the plurality of subscriber stations. The first information is decoded by demodulating and decoding the common control information according to a modulation scheme and a coding scheme corresponding to an MCS (Modulation and Coding Scheme) level applied to the first information in the base station. The second information is decoded by demodulating and decoding the common control information according to a modulation scheme and a coding scheme corresponding to MCS levels applied to the second information in the base station.

摘要翻译： 提供了一种在无线通信中从基站接收公共控制信息到多个用户站的方法。 公共控制信息包括所有多个用户站共同接收的第一信息和多个用户站根据多个用户站的信道状态分别接收的第二信息。 通过根据调制方式和与应用于基站中的第一信息的MCS（调制和编码方案）等级对应的编码方案对公共控制信息进行解调和解码来解码第一信息。 第二信息通过根据调制方案和对应于基站中的第二信息的MCS级别的编码方案对公共控制信息进行解调和解码来解码。

公开(公告)号：US07720175B2

公开(公告)日：2010-05-18

申请号：US11501964

申请日：2006-08-10

申请人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song ,  Dong-Kyu Kim ,  Dong-Joon Shin

发明人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song ,  Dong-Kyu Kim ,  Dong-Joon Shin

IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49

CPC分类号： H04L27/2624

摘要： A Peak-to-Average Power Ratio (PAPR) reduction apparatus and method in an OFDM communication system are provided. In the PAPR reduction method, magnitude and phase components are extracted from transmission sample data. Peaks having magnitude components exceeding a threshold are detected by comparing the extracted magnitude components with the threshold. The highest of the peaks is detected and compared with the threshold. If the highest peak is greater than the threshold, the highest peak is updated.

摘要翻译： 提供了一种OFDM通信系统中的峰值平均功率比（PAPR）降低装置和方法。 在PAPR缩小方法中，从传输样本数据中提取幅度和相位分量。 通过将所提取的幅度分量与阈值进行比较来检测具有超过阈值的幅度分量的峰值。 检测最高峰，并将其与阈值进行比较。 如果最高峰值大于阈值，则更新最高峰。

公开(公告)号：US07594160B2

公开(公告)日：2009-09-22

申请号：US11450815

申请日：2006-06-09

申请人： Hyung-Sang Cho ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Hyung-Sang Cho ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H03M13/45

CPC分类号： H03M13/25 ,  H03M13/256 ,  H04L1/0052 ,  H04L1/0059 ,  H04L1/0066

摘要： Provided is an apparatus and method for receiving a signal in communication system. The apparatus and method includes generating a particular log-likelihood ratio (LLR) value by demapping an input signal according to a particular demapping scheme among a plurality of demapping schemes; performing a control operation of buffering the particular LLR value in a particular LLR sub-buffer for buffering an LLR value generated according to the particular demapping scheme among the plurality of LLR sub-buffers for buffering an LLR value generated according to each of the plurality of demapping schemes; and performing a control operation of reading an LLR value buffered in an LLR buffer including the plurality of LLR sub-buffers.

摘要翻译： 提供了一种用于在通信系统中接收信号的装置和方法。 该装置和方法包括通过根据多个解映射方案中的特定解映射方案对输入信号进行解映射来产生特定对数似然比（LLR）值; 执行缓冲特定LLR子缓冲器中的特定LLR值的控制操作，用于缓冲根据多个LLR子缓冲器中的特定解映射方案生成的LLR值，用于缓冲根据多个LLR子缓冲器中的每一个产生的LLR值 解散计划; 以及执行读取在包括所述多个LLR子缓冲器的LLR缓冲器中缓冲的LLR值的控制操作。

公开(公告)号：US20070211832A1

公开(公告)日：2007-09-13

申请号：US11710852

申请日：2007-02-26

申请人： Seo-Goo Lee ,  Tae-Gon Kim ,  Min-Cheol Park ,  Yun-Sang Park ,  Bong-Gee Song ,  In-Hyoung Kim

发明人： Seo-Goo Lee ,  Tae-Gon Kim ,  Min-Cheol Park ,  Yun-Sang Park ,  Bong-Gee Song ,  In-Hyoung Kim

IPC分类号： H04L27/06 ,  H03D1/00

CPC分类号： H04L25/023

摘要： Provided is a channel estimation apparatus and method. In the channel estimation apparatus, a channel estimator performs channel estimation onto a received symbol and output a channel estimation result. The channel estimation result is stored in an estimation buffer along with a channel estimation result compensated in a preamble phase compensator. The preamble phase compensator receives a channel estimation result for pilot subcarriers of a data symbol and a preamble channel estimation result from the estimation buffer, acquires a phase rotation value between them, and compensates the preamble channel estimation result with the phase rotation value. When FCH and DL-MAP are demodulated, pilot subcarriers in the Nth PUSC symbol have been used to estimate the channel of the Nth PUSC symbol.

摘要翻译： 提供了一种信道估计装置和方法。 在信道估计装置中，信道估计器对所接收的符号进行信道估计并输出信道估计结果。 信道估计结果与在前置码相位补偿器中补偿的信道估计结果一起存储在估计缓冲器中。 前导码相位补偿器从估计缓冲器接收数据符号的导频子载波的信道估计结果和前导信道估计结果，获取相位旋转值，并以相位旋转值补偿前导信道估计结果。 当FCH和DL-MAP被解调时，第N个PUSC符号中的导频子载波已被用于估计第N个PUSC符号的信道。

公开(公告)号：US20070002977A1

公开(公告)日：2007-01-04

申请号：US11481037

申请日：2006-07-05

申请人： Hyung-Sang Cho ,  Byung-Tae Kang ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Hyung-Sang Cho ,  Byung-Tae Kang ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H04L27/06

CPC分类号： H04L1/0075 ,  H04L1/0055 ,  H04L1/1812

摘要： A scheduling method is provided for processing data in a communication system. The method includes performing downlink MAP (DL-MAP) decoding; generating a configuration table through the DL-MAP decoding; and processing data in a predetermined unit according to the generated configuration table.

摘要翻译： 提供了一种在通信系统中处理数据的调度方法。 该方法包括执行下行MAP（DL-MAP）解码; 通过DL-MAP解码生成配置表; 以及根据所生成的配置表在预定单元中处理数据。

公开(公告)号：US20060159006A1

公开(公告)日：2006-07-20

申请号：US11333460

申请日：2006-01-17

申请人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H04J11/00

CPC分类号： H04L27/2607

摘要： An apparatus and a method for reducing an error vector magnitude in an orthogonal frequency division multiplexing (OFDM) receiver. The method includes the steps of inputting a receiving symbol including a guard interval and an effective symbol interval following the guard interval, in which a front portion of the guard interval and a rear portion of the effective symbol interval have windowing intervals corresponding to windowing of a transmitter, and replacing a signal of the rear windowing interval with a signal of an interval between the front windowing interval and the effective symbol interval, thereby outputting a signal of the effective symbol interval, which substitutes for a signal of the rear windowing interval, to a fast Fourier transform (FFT) section.

摘要翻译： 一种用于减小正交频分复用（OFDM）接收机中的误差矢量幅度的装置和方法。 该方法包括以下步骤：输入包括保护间隔和保护间隔之后的有效符号间隔的接收符号，其中保护间隔的前部和有效符号间隔的后部具有对应于窗口的开窗间隔 发送器，并且用前窗口间隔和有效符号间隔之间的间隔的信号替换后窗口间隔的信号，从而将代替后窗口间隔的信号的有效符号间隔的信号输出到 快速傅里叶变换（FFT）部分。

公开(公告)号：US20060133529A1

公开(公告)日：2006-06-22

申请号：US11313897

申请日：2005-12-21

申请人： Seo-Goo Lee ,  Min-Cheol Park ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Seo-Goo Lee ,  Min-Cheol Park ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H04K1/10

CPC分类号： H04L25/0232 ,  H04L5/0007 ,  H04L5/0048

摘要： In an orthogonal frequency division multiplexing (OFDM) system, channel estimates of pilot subcarriers in a current input symbol are input, and time domain channel estimation for data subcarriers positioned between adjacent pilot subcarriers is performed by linear interpolating channel estimates of the adjacent pilot subcarriers associated with each of the pilot subcarriers in the current input symbol during a time interval of the current input symbol.

摘要翻译： 在正交频分复用（OFDM）系统中，输入当前输入符号中的导频子载波的信道估计，并且通过相邻导频子载波关联的线性内插信道估计来执行位于相邻导频子载波之间的数据子载波的时域信道估计 在当前输入符号的时间间隔内的当前输入符号中的每个导频子载波。

公开(公告)号：US20050265489A1

公开(公告)日：2005-12-01

申请号：US11120254

申请日：2005-05-02

申请人： Jae-Hwan Chang ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Jae-Hwan Chang ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H04B7/26 ,  H04B17/00 ,  H04L25/02 ,  H04L27/06 ,  H04L27/26

CPC分类号： H04B17/336 ,  H04L25/022 ,  H04L25/0224 ,  H04L27/2647

摘要： An apparatus and a method for estimating a carrier to interference and noise ratio (CINR) in a communication system. The CINR value is precisely estimated by removing the error floor value, which is caused by the inaccurate sliding average window SAW channel estimation value, from the CINR estimation value. Since the CINR value is precisely estimated, performance of the adaptive power control or the adaptive modulation and coding device is improved.

摘要翻译： 一种用于估计通信系统中的载波与干扰和噪声比（CINR）的装置和方法。 通过从CINR估计值中除去由不准确的滑动平均窗口SAW信道估计值引起的误差平均值来精确地估计CINR值。 由于CINR值被精确估计，所以改善了自适应功率控制或自适应调制编码装置的性能。

公开(公告)号：US07711074B2

公开(公告)日：2010-05-04

申请号：US11216851

申请日：2005-08-31

申请人： Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H03D1/00

CPC分类号： H04L27/2675 ,  H04L7/042 ,  H04L7/08 ,  H04L27/261 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2684

摘要： A synchronization extraction apparatus for a communication system and a method thereof are disclosed. A frame synchronization is obtained in a manner that the sum of an input signal and a delay signal is obtained without obtaining a simple correlation value between the input signal and the delay signal, and then a correlation value between a summed signal and the delay signal is obtained. The synchronization extraction apparatus and method can reduce the implementation complexity and power consumption in obtaining the frame synchronization, and thus increase the battery cycle of a terminal provided with the synchronization extraction apparatus or method.

摘要翻译： 公开了一种用于通信系统的同步提取装置及其方法。 获得帧同步，使得在不获得输入信号和延迟信号之间的简单相关值的情况下获得输入信号和延迟信号的和，然后相加信号与延迟信号之间的相关值为 获得。 同步提取装置和方法可以在获得帧同步的同时降低实施复杂度和功耗，从而增加了具有同步提取装置或方法的终端的电池周期。