公开(公告)号：US20050136874A1

公开(公告)日：2005-06-23

申请号：US11015471

申请日：2004-12-20

申请人： Soo-Bok Yeo ,  Sang-Min Bae ,  Jong-Han Lim ,  Ji-Won Ha ,  Yong-Won Shin

发明人： Soo-Bok Yeo ,  Sang-Min Bae ,  Jong-Han Lim ,  Ji-Won Ha ,  Yong-Won Shin

IPC分类号： H04L25/12 ,  H04B1/30 ,  H04B1/10

CPC分类号： H04B1/30

摘要： An apparatus for removing a DC offset during frequency direct conversion in a reception device of a wireless communication system. In the apparatus, an adder receives a digital baseband signal comprising a DC component, receives an estimated DC offset value, and calculates a difference between the digital baseband signal with the DC component and the estimated DC offset value. A DC offset calculator receives gain mode information of an analog element of the reception device, and calculates the estimated DC offset value according to the gain mode.

摘要翻译： 一种用于在无线通信系统的接收装置中的频率直接转换期间去除DC偏移的装置。 在该装置中，加法器接收包括DC分量的数字基带信号，接收估计的DC偏移值，并计算具有DC分量的数字基带信号与估计的DC偏移值之间的差。 DC偏移计算器接收接收装置的模拟元件的增益模式信息，并根据增益模式计算估计的DC偏移值。

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：US08509079B2

公开(公告)日：2013-08-13

申请号：US12795991

申请日：2010-06-08

申请人： In-Tae Kang ,  Jung-Hwa Bae ,  Bo-Rham Lee ,  Sang-Min Bae ,  Jong-Han Lim

发明人： In-Tae Kang ,  Jung-Hwa Bae ,  Bo-Rham Lee ,  Sang-Min Bae ,  Jong-Han Lim

IPC分类号： H04J3/14

CPC分类号： H04L5/003 ,  H04L5/0007 ,  H04L27/2618

摘要： A method and apparatus for transmitting a signal whereby it is determined if a Bandwidth Expansion Factor (BEF) Q is an integer, the BEF being determined as N/M according to a number N of subcarriers of a system band and a number M of subcarriers of an allocated band, an input signal to be transmitted Q times in a time domain when the Q is an integer is expanded, a Single Carrier Frequency Division Multiplexing Access (SC-FDMA) signal is generated, and the SC-FDMA signal is transmitted.

摘要翻译： 一种用于发送信号的方法和装置，由此确定带宽扩展因子（BEF）Q是否是整数，BEF根据系统频带的子载波数N和子载波数M确定为N / M 的分配频带，当Q为整数时在时域中发送Q次的输入信号被扩展，产生单载波频分复用接入（SC-FDMA）信号，并且发送SC-FDMA信号 。

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。

公开(公告)号：US08036313B2

公开(公告)日：2011-10-11

申请号：US12071029

申请日：2008-02-14

申请人： Huiqiang Zhou ,  Jeong-Soon Park ,  Min-Cheol Park ,  Jong-Han Lim

发明人： Huiqiang Zhou ,  Jeong-Soon Park ,  Min-Cheol Park ,  Jong-Han Lim

IPC分类号： H03K9/00

CPC分类号： H04L1/0631 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204

摘要： Provided are an apparatus and method for interference cancellation in a BWA communication system. In a receiving apparatus for the interference cancellation, a preamble correlation measurer measures a preamble correlation coefficient from a preamble of a signal received signal. A data rearranger determines a block size to divide the received signal from the preamble correlation coefficient, divides the signal according to the determined block size, and rearranges the divided signals in a Space-Time coding (STC) mode. An estimate weight calculator cross-correlates the output signals of the data rearranger, rearranges the cross-correlated signals, auto-correlates the rearranged signals, and calculates an estimate weight to perform an interpolation operation. An estimate signal decoding/combining unit detects desired signals from signals estimated by the estimate weight calculator and combines the detected signals.

摘要翻译： 提供了一种用于在BWA通信系统中进行干扰消除的装置和方法。 在干扰消除的接收装置中，前导码相关测量器从信号接收信号的前导码测量前导码相关系数。 数据重排器确定块大小以从前导相关系数除以接收信号，根据所确定的块大小划分信号，并以空时编码（STC）模式重新排列分割的信号。 估计权重计算器对数据重排器的输出信号进行交叉相关，重新排列交叉相关信号，自动关联重新排列的信号，并计算估计权重以执行插值操作。 估计信号解码/组合单元从由估计权重计算器估计的信号中检测所需信号，并组合检测到的信号。

公开(公告)号：US20090097454A1

公开(公告)日：2009-04-16

申请号：US12287843

申请日：2008-10-14

申请人： Hye-Jin Yeou ,  Tae-Ik Song ,  Bong-Gee Song ,  Jong-Han Lim

发明人： Hye-Jin Yeou ,  Tae-Ik Song ,  Bong-Gee Song ,  Jong-Han Lim

IPC分类号： H04W4/00

CPC分类号： H04W28/22 ,  H04W36/22

摘要： An apparatus and method for estimating a cell load in a wireless communication system are provided. The apparatus includes a ranging response counter, a load estimator, an FA handover determiner, a data rate determiner, and a handover determiner. The ranging response counter counts the number of ranging response messages that are received during one period of periodic ranging. The load estimator estimates a cell load on the basis of the number of the ranging response messages. The FA handover determiner determines an FA handover on the basis of the cell load from the load estimator. The data rate determiner controls a data rate of a service on the basis of the cell load from the load estimator and requests the controlled data rate to the system. The handover determiner controls handover parameters on the basis of the cell load from the load estimator.

摘要翻译： 提供了一种用于估计无线通信系统中的小区负载的装置和方法。 该装置包括测距响应计数器，负载估计器，FA切换确定器，数据速率确定器和切换确定器。 测距响应计数器计数在周期性测距的一个周期期间接收的测距响应消息的数量。 负载估计器基于测距响应消息的数量来估计小区负载。 FA切换确定器基于来自负载估计器的小区负载来确定FA切换。 数据速率确定器基于来自负载估计器的小区负载来控制业务的数据速率，并向系统请求受控数据速率。 切换确定器基于来自负载估计器的小区负载来控制切换参数。

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：US20080205561A1

公开(公告)日：2008-08-28

申请号：US12071029

申请日：2008-02-14

申请人： Huiqiang Zhou ,  Jeong-Soon Park ,  Min-Cheol Park ,  Jong-Han Lim

发明人： Huiqiang Zhou ,  Jeong-Soon Park ,  Min-Cheol Park ,  Jong-Han Lim

IPC分类号： H04L1/00

CPC分类号： H04L1/0631 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204

摘要： Provided are an apparatus and method for interference cancellation in a BWA communication system. In a receiving apparatus for the interference cancellation, a preamble correlation measurer measures a preamble correlation coefficient from a preamble of a signal received signal. A data rearranger determines a block size to divide the received signal from the preamble correlation coefficient, divides the signal according to the determined block size, and rearranges the divided signals in a Space-Time coding (STC) mode. An estimate weight calculator cross-correlates the output signals of the data rearranger, rearranges the cross-correlated signals, auto-correlates the rearranged signals, and calculates an estimate weight to perform an interpolation operation. An estimate signal decoding/combining unit detects desired signals from signals estimated by the estimate weight calculator and combines the detected signals.

摘要翻译： 提供了一种用于在BWA通信系统中进行干扰消除的装置和方法。 在干扰消除的接收装置中，前导码相关测量器从信号接收信号的前导码测量前导码相关系数。 数据重排器确定块大小以从前导相关系数除以接收信号，根据所确定的块大小划分信号，并以空时编码（STC）模式重新排列分割的信号。 估计权重计算器对数据重排器的输出信号进行交叉相关，重新排列交叉相关信号，自动关联重新排列的信号，并计算估计权重以执行插值操作。 估计信号解码/组合单元从由估计权重计算器估计的信号中检测所需信号，并组合检测到的信号。

公开(公告)号：US20080117996A1

公开(公告)日：2008-05-22

申请号：US11984367

申请日：2007-11-16

申请人： Sang-Hyo Kim ,  Weon-Heum Park ,  Jong-Han Lim

发明人： Sang-Hyo Kim ,  Weon-Heum Park ,  Jong-Han Lim

IPC分类号： H04L23/02 ,  H04L5/12

CPC分类号： H04L5/023 ,  H04L1/0045 ,  H04L1/0053 ,  H04L27/2647

摘要： A decoding apparatus and method in a BWA communication system are provided, in which an ID-based decoder controller detects an ID from a data block by partially decoding the data block, and if the ID indicates that the data block is not for the receiver, outputs a control signal commanding non-decoding for the data block, a bitmap table controller indicates the data block as a non-decoding data block in a bitmap table according to the control signal, and a decoder distinguishes data blocks to be decoded from non-decoding data blocks based on the bitmap table, decodes the data blocks to be decoded and outputs the decoded data blocks, and simply outputs the non-decoding data blocks without decoding.

摘要翻译： 提供了一种在BWA通信系统中的解码装置和方法，其中基于ID的解码器控制器通过部分地解码数据块来从数据块检测ID，并且如果ID指示数据块不是用于接收器， 输出命令对数据块进行非解码的控制信号，位图表控制器根据控制信号将数据块指示为位图表中的非解码数据块，并且解码器将要解码的数据块与非解码数据块进行区分， 基于位图表解码数据块，对要解码的数据块进行解码，并输出解码的数据块，并且在不进行解码的情况下简单地输出非解码数据块。

公开(公告)号：US20080065944A1

公开(公告)日：2008-03-13

申请号：US11900754

申请日：2007-09-13

申请人： Ji-Yun Seol ,  Hyun-Sang Cho ,  Bong-Gee Song ,  Jong-Han Lim ,  Jin-Woo Roh

发明人： Ji-Yun Seol ,  Hyun-Sang Cho ,  Bong-Gee Song ,  Jong-Han Lim ,  Jin-Woo Roh

IPC分类号： H04L1/08 ,  G06F11/14

CPC分类号： H04L1/1845 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1835

摘要： Disclosed is a method and apparatus for efficiently controlling buffers which support a Hybrid Automatic Repeat Request (HARQ) in a wireless communication system. Buffer regions for the HARQ scheme are not fixedly allocated according to channel identification information, but are allocated from the viewpoint of one overall memory through aggregation support. That is, an HARQ buffer is dynamically controlled. Therefore, there are the effects reducing the size of the entire chip, as well as reducing power consumption of the entire system according to the reduction of the chip size.

摘要翻译： 公开了一种用于有效地控制在无线通信系统中支持混合自动重复请求（HARQ）的缓冲器的方法和装置。 用于HARQ方案的缓冲区不是根据信道标识信息固定地分配，而是通过聚合支持从一个总体存储器的角度分配。 也就是说，动态地控制HARQ缓冲器。 因此，存在降低整个芯片的尺寸的效果，以及根据芯片尺寸的减小来降低整个系统的功耗。