公开(公告)号：US08565213B2

公开(公告)日：2013-10-22

申请号：US12232490

申请日：2008-09-18

申请人： Tae-Ik Song ,  Young-Hak Kim ,  Jong-Han Lim ,  Jeong-Hoon Park ,  Jae-Hwan Chang ,  Kang-Gyu Lee ,  In-Hyoung Kim

发明人： Tae-Ik Song ,  Young-Hak Kim ,  Jong-Han Lim ,  Jeong-Hoon Park ,  Jae-Hwan Chang ,  Kang-Gyu Lee ,  In-Hyoung Kim

IPC分类号： H04J3/06 ,  H04B15/00

CPC分类号： H04J3/0682 ,  H04W56/0005

摘要： An apparatus and method for estimating UpLink (UL) transmission timing in a Mobile Station (MS) of a wireless communication system are provided. The method includes tracking DL timing by using a DL preamble signal received for each frame; estimating a time offset between a previous frame and a current frame by using the DL timing tracked for each frame; and estimating the UL transmission timing by using the estimated time offset.

公开(公告)号：US20090086714A1

公开(公告)日：2009-04-02

申请号：US12232490

申请日：2008-09-18

申请人： Tae-Ik Song ,  Young-Hak Kim ,  Jong-Han Lim ,  Jeong-Hoon Park ,  Jae-Hwan Chang ,  Kang-Gyu Lee ,  In-Hyoung Kim

发明人： Tae-Ik Song ,  Young-Hak Kim ,  Jong-Han Lim ,  Jeong-Hoon Park ,  Jae-Hwan Chang ,  Kang-Gyu Lee ,  In-Hyoung Kim

IPC分类号： H04J3/06 ,  H04B7/00

CPC分类号： H04J3/0682 ,  H04W56/0005

摘要： An apparatus and method for estimating UpLink (UL) transmission timing in a Mobile Station (MS) of a wireless communication system are provided. The method includes tracking DL timing by using a DL preamble signal received for each frame; estimating a time offset between a previous frame and a current frame by using the DL timing tracked for each frame; and estimating the UL transmission timing by using the estimated time offset.

摘要翻译： 提供了一种用于估计无线通信系统的移动台（MS）中的UpLink（UL）传输定时的装置和方法。 该方法包括通过使用为每帧接收的DL前导信号来跟踪DL定时; 通过使用针对每个帧跟踪的DL定时来估计前一帧和当前帧之间的时间偏移; 以及通过使用估计的时间偏移来估计UL传输定时。

公开(公告)号：US07746940B2

公开(公告)日：2010-06-29

申请号：US11481032

申请日：2006-07-05

申请人： Hae-Dong Yeon ,  Young-Hak Kim ,  Jae-Hwan Chang ,  Jae-Yong Lee ,  Min-Cheol Park ,  Ji-Yun Seol ,  Tae-Gon Kim ,  Jun-Kyu Kang ,  In-Hyoung Kim ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Hae-Dong Yeon ,  Young-Hak Kim ,  Jae-Hwan Chang ,  Jae-Yong Lee ,  Min-Cheol Park ,  Ji-Yun Seol ,  Tae-Gon Kim ,  Jun-Kyu Kang ,  In-Hyoung Kim ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L27/2607 ,  H04L5/023 ,  H04L27/2634

摘要： A method and apparatus for processing time windowing to transmit a signal in a Broadband Wireless Access (BWA) communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). A signal of a first interval included in a previous symbol prior to a current symbol is stored as a signal of a previous symbol interval. The current symbol includes a guard interval and an effective symbol interval subsequent to the guard interval. The current symbol is windowed by overlapping the stored signal of the first interval with a signal of a second interval included in the current symbol subsequent to the previous symbol. A windowed signal is transmitted.

摘要翻译： 一种用于在基于正交频分多址（OFDMA）的宽带无线接入（BWA）通信系统中处理时间窗口以发送信号的方法和装置。 包括在当前符号之前的先前符号中的第一间隔的信号被存储为先前符号间隔的信号。 当前符号包括保护间隔和保护间隔之后的有效符号间隔。 通过将所存储的第一间隔的信号与包含在先前符号之后的当前符号中的第二间隔的信号相叠加来将当前符号加窗。 发送窗口信号。

公开(公告)号：US20070009056A1

公开(公告)日：2007-01-11

申请号：US11481032

申请日：2006-07-05

申请人： Hae-Dong Yeon ,  Young-Hak Kim ,  Jae-Hwan Chang ,  Jae-Yong Lee ,  Min-Cheol Park ,  Ji-Yun Seol ,  Tae-Gon Kim ,  Jun-Kyu Kang ,  In-Hyoung Kim ,  Yun-Sang Park ,  Bong-Gee Song

发明人： Hae-Dong Yeon ,  Young-Hak Kim ,  Jae-Hwan Chang ,  Jae-Yong Lee ,  Min-Cheol Park ,  Ji-Yun Seol ,  Tae-Gon Kim ,  Jun-Kyu Kang ,  In-Hyoung Kim ,  Yun-Sang Park ,  Bong-Gee Song

IPC分类号： H04K1/10

CPC分类号： H04L27/2607 ,  H04L5/023 ,  H04L27/2634

摘要： A method and apparatus for processing time windowing to transmit a signal in a Broadband Wireless Access (BWA) communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). A signal of a first interval included in a previous symbol prior to a current symbol is stored as a signal of a previous symbol interval. The current symbol includes a guard interval and an effective symbol interval subsequent to the guard interval. The current symbol is windowed by overlapping the stored signal of the first interval with a signal of a second interval included in the current symbol subsequent to the previous symbol. A windowed signal is transmitted.

摘要翻译： 一种用于在基于正交频分多址（OFDMA）的宽带无线接入（BWA）通信系统中处理时间窗口以发送信号的方法和装置。 包括在当前符号之前的先前符号中的第一间隔的信号被存储为先前符号间隔的信号。 当前符号包括保护间隔和保护间隔之后的有效符号间隔。 通过将所存储的第一间隔的信号与包含在先前符号之后的当前符号中的第二间隔的信号相叠加来将当前符号加窗。 发送窗口信号。

公开(公告)号：US09680593B2

公开(公告)日：2017-06-13

申请号：US13343114

申请日：2012-01-04

申请人： Young-Seok Jung ,  Jong-Han Lim ,  In-Hyoung Kim

发明人： Young-Seok Jung ,  Jong-Han Lim ,  In-Hyoung Kim

IPC分类号： H04J11/00 ,  H04L25/02

CPC分类号： H04J11/0066 ,  H04L25/0232

摘要： A technique for avoiding reception performance deterioration caused by a tone interference that occurs at a position carrying a pilot signal in a wireless communication system is provided. A receiving end includes an operator for converting a time-axis signal into a frequency-axis signal, an extractor for generating channel values in positions carrying pilot signals among the frequency-axis signals, a compensator for compensating for a channel value of a position at which tone interference occurs by using at least one channel value of a position at which no tone interference occurs among the channel values.

公开(公告)号：US08208567B2

公开(公告)日：2012-06-26

申请号：US12253174

申请日：2008-10-16

申请人： Hae-Dong Yeon ,  In-Hyoung Kim ,  Jin-Woo Roh ,  Sung-Soo Kim ,  Bong-Gee Song ,  Jong-Han Lim

发明人： Hae-Dong Yeon ,  In-Hyoung Kim ,  Jin-Woo Roh ,  Sung-Soo Kim ,  Bong-Gee Song ,  Jong-Han Lim

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L27/2614 ,  H04L25/03343

摘要： An apparatus and method for reducing a Peak-to-Average Power Ratio (PAPR) are provided. The apparatus includes a gain processor for multiplying time signals in paths by gains set for respective paths, a delay processor for delaying gain-multiplied signals in second to last paths except for a first path by time delays set for respective second to last paths, a summer for summing the gain-multiplied signal for the first path received from the gain processor and the delayed signals received from the delay processor, a PAPR processor for measuring a PAPR of the summed signal received from the summer, for comparing the measured PAPR with a target PAPR, and for requesting one or more changes of at least one of the gain and time delay of each path, and a gain delay controller for changing the at least one of the gain and the time delay of each path according to the request received from the PAPR processor and for controlling the gain processor and the delay processor according to the change.

摘要翻译： 提供了降低峰值功率比（PAPR）的装置和方法。 该装置包括一个增益处理器，用于通过针对相应路径设定的增益对路径中的时间信号进行乘法;延迟处理器，用于通过为相应的第二到最后路径设置的时间延迟来延迟除了第一路径之外的第二到最后路径中的增益相乘信号的延迟处理器 用于将从增益处理器接收的第一路径的增益信号和从延迟处理器接收的延迟信号相加的加法器，用于测量从夏季接收到的求和信号的PAPR的PAPR处理器，用于将测量的PAPR与 目标PAPR，并且用于请求每个路径的增益和时间延迟中的至少一个的一个或多个改变;以及增益延迟控制器，用于根据接收的请求来改变每个路径的增益和时间延迟中的至少一个 来自PAPR处理器，并且用于根据该改变来控制增益处理器和延迟处理器。

公开(公告)号：US20110164709A1

公开(公告)日：2011-07-07

申请号：US12986700

申请日：2011-01-07

申请人： Jeong-Soon Park ,  Kyung-Min Kim ,  Jong-Han Lim ,  Sung-Soo Kim ,  In-Hyoung Kim ,  Jin Park

发明人： Jeong-Soon Park ,  Kyung-Min Kim ,  Jong-Han Lim ,  Sung-Soo Kim ,  In-Hyoung Kim ,  Jin Park

IPC分类号： H04B1/10

CPC分类号： H04L25/0202

摘要： An apparatus and method for channel estimation decrease overhead and hardware complexity while supporting both Wiener-type channel estimation and Finite Impulse Response (FIR) filtering/Infinite Impulse Response (IIR) filtering in a wireless communication system. The apparatus includes a storage unit for storing coefficient sets for a plurality of channel estimation types. A controller selects one of the plurality of channel estimation types according to at least one of a type of a pilot signal and a reliability value of a channel parameter. An N-tap filter, including N multipliers and (N−1) adders, determines channel estimation values of data tones by using the coefficient sets for the selected channel estimation type.

摘要翻译： 用于信道估计的装置和方法减少了开销和硬件复杂性，同时支持无线通信系统中的维纳型信道估计和有限脉冲响应（FIR）滤波/无限脉冲响应（IIR）滤波。 该装置包括用于存储多个信道估计类型的系数组的存储单元。 控制器根据导频信号的类型和信道参数的可靠性值中的至少一个来选择多个信道估计类型之一。 包括N个乘法器和（N-1）个加法器的N抽头滤波器通过使用所选择的信道估计类型的系数集来确定数据音调的信道估计值。

公开(公告)号：US20100014476A1

公开(公告)日：2010-01-21

申请号：US12503518

申请日：2009-07-15

申请人： Yoo-Chang EUN ,  Jong-Han Lim ,  In-Hyoung Kim

发明人： Yoo-Chang EUN ,  Jong-Han Lim ,  In-Hyoung Kim

IPC分类号： H04W72/04 ,  H04L27/08 ,  H04L1/18

CPC分类号： H04L1/1845 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/0033 ,  H04L5/0062 ,  H04L5/0085

摘要： An apparatus and method for improving a HARQ combining gain in a broadband wireless communication system are provided. The apparatus includes a seed information generator and a subcarrier allocator. The seed information generator randomly generates a seed value for changing a channel of a subcarrier and an interference pattern in a frame unit when a HARQ combining gain is not generated because an interference pattern is the same during a retransmission period. The subcarrier allocator allocates a subcarrier using the generated seed value.

摘要翻译： 提供了一种用于改善宽带无线通信系统中的HARQ组合增益的装置和方法。 该装置包括种子信息发生器和子载波分配器。 种子信息生成器随机地生成种子值，用于当由于干扰模式在重传周期期间相同时，不产生HARQ组合增益时，以帧为单位改变子载波的信道和干扰模式。 子载波分配器使用生成的种子值分配子载波。

公开(公告)号：US08681714B2

公开(公告)日：2014-03-25

申请号：US12503518

申请日：2009-07-15

申请人： Yoo-Chang Eun ,  Jong-Han Lim ,  In-Hyoung Kim

发明人： Yoo-Chang Eun ,  Jong-Han Lim ,  In-Hyoung Kim

IPC分类号： H04W72/04

CPC分类号： H04L1/1845 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/0033 ,  H04L5/0062 ,  H04L5/0085

摘要： An apparatus and method for improving a HARQ combining gain in a broadband wireless communication system are provided. The apparatus includes a seed information generator and a subcarrier allocator. The seed information generator randomly generates a seed value for changing a channel of a subcarrier and an interference pattern in a frame unit when a HARQ combining gain is not generated because an interference pattern is the same during a retransmission period. The subcarrier allocator allocates a subcarrier using the generated seed value.

摘要翻译： 提供了一种用于改善宽带无线通信系统中的HARQ组合增益的装置和方法。 该装置包括种子信息发生器和子载波分配器。 种子信息生成器随机地生成种子值，用于当由于干扰模式在重传周期期间相同时，不产生HARQ组合增益时，以帧为单位改变子载波的信道和干扰模式。 子载波分配器使用生成的种子值分配子载波。

公开(公告)号：US08437436B2

公开(公告)日：2013-05-07

申请号：US12986700

申请日：2011-01-07

申请人： Jeong-Soon Park ,  Kyung-Min Kim ,  Jong-Han Lim ,  Sung-Soo Kim ,  In-Hyoung Kim ,  Jin Park

发明人： Jeong-Soon Park ,  Kyung-Min Kim ,  Jong-Han Lim ,  Sung-Soo Kim ,  In-Hyoung Kim ,  Jin Park

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04L25/0202

摘要： An apparatus and method for channel estimation decrease overhead and hardware complexity while supporting both Wiener-type channel estimation and Finite Impulse Response (FIR) filtering/Infinite Impulse Response (IIR) filtering in a wireless communication system. The apparatus includes a storage unit for storing coefficient sets for a plurality of channel estimation types. A controller selects one of the plurality of channel estimation types according to at least one of a type of a pilot signal and a reliability value of a channel parameter. An N-tap filter, including N multipliers and (N−1) adders, determines channel estimation values of data tones by using the coefficient sets for the selected channel estimation type.

摘要翻译： 用于信道估计的装置和方法减少了开销和硬件复杂性，同时支持无线通信系统中的维纳型信道估计和有限脉冲响应（FIR）滤波/无限脉冲响应（IIR）滤波。 该装置包括用于存储多个信道估计类型的系数组的存储单元。 控制器根据导频信号的类型和信道参数的可靠性值中的至少一个来选择多个信道估计类型之一。 包括N个乘法器和（N-1）个加法器的N抽头滤波器通过使用所选择的信道估计类型的系数集来确定数据音调的信道估计值。