公开(公告)号：US07957499B2

公开(公告)日：2011-06-07

申请号：US11998264

申请日：2007-11-29

申请人： Ki-Hwan Hwang ,  Kyun-Byoung Ko ,  Ji-Ho Jang ,  Sung-Kwon Jo ,  Jae-Hyok Lee

发明人： Ki-Hwan Hwang ,  Kyun-Byoung Ko ,  Ji-Ho Jang ,  Sung-Kwon Jo ,  Jae-Hyok Lee

IPC分类号： H04L7/00

CPC分类号： H04L27/2662 ,  H04L27/2657 ,  H04L27/2675

摘要： Provided is an apparatus and method for compensating a timing offset in a broadband wireless communication system. A receiving apparatus for the timing offset compensation includes a selector, a first calculator, and a second calculator. The selector groups two or more adjacent tiles into one or more tile groups and selects one or more pilot pairs, each including adjacent pilot signals, from each tile group. The first calculator calculates an average phase difference between the pilot pairs. The second calculator calculates a timing offset using the average phase difference.

摘要翻译： 提供了一种用于补偿宽带无线通信系统中的定时偏移的装置和方法。 用于定时偏移补偿的接收装置包括选择器，第一计算器和第二计算器。 选择器将两个或更多个相邻瓦片组合成一个或多个瓦片组，并从每个瓦片组中选择一个或多个导频对，每个导频对包括相邻导频信号。 第一计算器计算导频对之间的平均相位差。 第二计算器使用平均相位差计算定时偏移。

公开(公告)号：US07889706B2

公开(公告)日：2011-02-15

申请号：US11236564

申请日：2005-09-28

申请人： Sung-Hwan Ong ,  Sung-Kwon Jo ,  Ji-Won Lee

发明人： Sung-Hwan Ong ,  Sung-Kwon Jo ,  Ji-Won Lee

IPC分类号： H04B7/216

CPC分类号： H04B1/707 ,  H04B2201/70701

摘要： An apparatus and method for detecting a pilot signal in a mobile communication system are provided by which the processing time taken to demodulate a traffic channel based on a channel estimation result can be reduced, and thus, the size of a buffer for buffering signals until the presence of a secondary/auxiliary pilot signal is detected can also be reduced. The apparatus includes a first channel estimator for estimating a channel for a noise component of a pilot symbol received by a first receiver, a second channel estimator for adding a pilot symbol received by a second receiver and the pilot symbol received by the first receiver and estimating a channel for a noise component of the added pilot symbol, an energy detector for detecting an energy value of a pilot symbol using result values output from the first and second channel estimators, and a comparison and determination unit for determining whether or not there is a secondary/auxiliary pilot signal by using the detected energy values.

摘要翻译： 提供一种用于在移动通信系统中检测导频信号的装置和方法，通过该装置和方法可以减少基于信道估计结果来解调业务信道的处理时间，并且因此可以减小用于缓冲信号的缓冲器的大小直到 检测到二次/辅助导频信号的存在也可以减少。 该装置包括：第一信道估计器，用于估计由第一接收机接收的导频符号的噪声分量的信道;第二信道估计器，用于添加由第二接收机接收的导频符号和由第一接收机接收的导频符号; 用于所述附加导频符号的噪声分量的信道;能量检测器，用于使用从所述第一和第二信道估计器输出的结果值来检测导频符号的能量值;以及比较和确定单元，用于确定是否存在 辅助/辅助导频信号通过使用检测到的能量值。

公开(公告)号：US20100216406A1

公开(公告)日：2010-08-26

申请号：US12660463

申请日：2010-02-26

申请人： Goo-Hyun Park ,  Sung-Kwon Jo

发明人： Goo-Hyun Park ,  Sung-Kwon Jo

IPC分类号： H04B17/00

CPC分类号： H04B7/01

摘要： A base station is capable of performing a method for velocity estimation in a mobile communication system. In the velocity estimation method, a received signal is delayed by a plurality of different sample intervals. A candidate maximum Doppler frequency for each of the delayed received signals is estimated. A maximum Doppler frequency in a reliable period is selected among the candidate maximum Doppler frequencies.

摘要翻译： 基站能够执行移动通信系统中的速度估计方法。 在速度估计方法中，接收到的信号被延迟多个不同的采样间隔。 估计每个延迟接收信号的候选最大多普勒频率。 在候选最大多普勒频率中选择可靠时段中的最大多普勒频率。

公开(公告)号：US20100203858A1

公开(公告)日：2010-08-12

申请号：US12704281

申请日：2010-02-11

申请人： Ik-Beom Lee ,  Sung-Kwon Jo

发明人： Ik-Beom Lee ,  Sung-Kwon Jo

IPC分类号： H04B1/10

CPC分类号： H04B7/0854 ,  H04B7/0857

摘要： An apparatus and method for controlling a whitening function of a whitening Maximum Ratio Combining (MRC) in a receive end of a multiple antenna system are provided. The method includes identifying if there is interference from at least one neighbor cell, if there is interference, generating a weight of the whitening MRC using a pre-whitening inverse matrix, and, if there is no interference, generating a weight of the whitening MRC using a unit matrix, thus being capable of improving a reception performance of the receive end.

摘要翻译： 提供了一种用于控制多天线系统的接收端中的增白最大比组合（MRC）的白化功能的装置和方法。 该方法包括确定是否存在来自至少一个相邻小区的干扰，如果存在干扰，则使用预白化逆矩阵生成白化MRC的权重，并且如果没有干扰，则产生增白MRC的权重 使用单位矩阵，从而能够提高接收端的接收性能。

公开(公告)号：US20100182951A1

公开(公告)日：2010-07-22

申请号：US12657387

申请日：2010-01-20

申请人： Myong-Hee Park ,  Sung-Kwon Jo ,  Jae-Hyok Lee ,  Ki-Hwan Hwang

发明人： Myong-Hee Park ,  Sung-Kwon Jo ,  Jae-Hyok Lee ,  Ki-Hwan Hwang

IPC分类号： H04W40/00

CPC分类号： H04L1/0009 ,  H04L1/0003 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/1812 ,  H04W72/1231

摘要： A method for rate control in a wireless communication system includes feedback information indicating whether a packet is received, is received from a receiver. A channel state value measured by the receiver is received. It is determined whether the same feedback information is received from the receiver successively more than a predetermined frequency. A target error rate is controlled if the same feedback information is received successively more than the predetermined frequency.

摘要翻译： 一种无线通信系统中的速率控制方法包括：从接收机接收指示分组是否被接收的反馈信息。 接收由接收机测量的信道状态值。 确定从接收机连续地多于预定频率接收到相同的反馈信息。 如果连续地接收到超过预定频率的相同反馈信息，则控制目标错误率。

公开(公告)号：US20090227247A1

公开(公告)日：2009-09-10

申请号：US12380903

申请日：2009-03-05

申请人： Myung-Kwang Byun ,  Jeong-Tae Oh ,  Jae-Ho Jeon ,  Sung-Kwon Jo

发明人： Myung-Kwang Byun ,  Jeong-Tae Oh ,  Jae-Ho Jeon ,  Sung-Kwon Jo

IPC分类号： H04W36/20 ,  H04B15/00 ,  H04W24/00

CPC分类号： H04L1/0048 ,  H04B1/1027 ,  H04B17/345 ,  H04L25/0328 ,  H04L27/2647

摘要： An apparatus and method for eliminating interference in a base station (BS) of a communication system. A first BS receives a first reception signal from a first mobile station located in a cell of the first base station. A second base station being adjacent to the first base station delivers decoding information of a second reception signal to the first base station, the second reception signal received from a second mobile station located in a cell of the second base station. The first BS determines whether an error exists on the second reception signal, based on the decoding information and re-generates an interference signal using the decoding information of the second reception signal when no error exists in the second reception signal, and performing interference elimination on the first reception signal using the re-generated interference signal.

摘要翻译： 一种用于消除通信系统的基站（BS）中的干扰的装置和方法。 第一BS从位于第一基站的小区中的第一移动台接收第一接收信号。 与第一基站相邻的第二基站向第一基站传送第二接收信号的解码信息，从位于第二基站的小区的第二移动台接收的第二接收信号。 第一BS基于解码信息确定第二接收信号是否存在错误，并且当在第二接收信号中没有错误时，使用第二接收信号的解码信息重新产生干扰信号，并对 第一接收信号使用重新产生的干扰信号。

公开(公告)号：US20090141673A1

公开(公告)日：2009-06-04

申请号：US12315384

申请日：2008-12-03

申请人： Ki-Hwan Hwang ,  Sung-Kwon Jo ,  Jae-Hyok Lee ,  Myong-Hee Park

发明人： Ki-Hwan Hwang ,  Sung-Kwon Jo ,  Jae-Hyok Lee ,  Myong-Hee Park

IPC分类号： H04W72/04

CPC分类号： H04L1/18 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007

摘要： An apparatus and method for rate control in a wireless communication system are provided. The apparatus includes a preprocessor, a rate controller, a determiner, and a transmitter. The preprocessor determines feedback information on a physical layer packet using a feedback message of MAC ARQ. The rate controller updates a CQI reported from a receiver using the determined feedback information. The determiner determines an MCS using the updated CQI. The transmitter transmits data using the determined MCS.

摘要翻译： 提供了一种用于无线通信系统中的速率控制的装置和方法。 该装置包括预处理器，速率控制器，确定器和发射器。 预处理器使用MAC ARQ的反馈消息来确定物理层分组上的反馈信息。 速率控制器使用所确定的反馈信息来更新从接收机报告的CQI。 确定器使用更新的CQI来确定MCS。 发射机使用确定的MCS发送数据。

公开(公告)号：US20080194284A1

公开(公告)日：2008-08-14

申请号：US12029768

申请日：2008-02-12

申请人： Ji-Hoon CHOI ,  Sung-Kwon Jo ,  Jun-Sang Lee

发明人： Ji-Hoon CHOI ,  Sung-Kwon Jo ,  Jun-Sang Lee

IPC分类号： H04B7/00

CPC分类号： H04W52/325

摘要： An apparatus and method for power allocation in a mobile communication system are provided. A transmitting method includes allocating a certain fraction of total power to a common control channel; allocating available power corresponding to the remaining fraction of the total power to remaining control channels except for the common control channel among control channels transmitted in a current time slot by considering the remaining control channels; calculating a gain value of each control channel according to power allocated to each control channel; and regulating a gain of each control channel, which is to be transmitted to one or more Access Terminals (ATs), according to the calculated gain value. Therefore, reception throughput of each control channel can be improved.

摘要翻译： 提供了一种用于移动通信系统中的功率分配的装置和方法。 发送方法包括：将一定比例的总功率分配给公共控制信道; 通过考虑剩余的控制信道，将在当前时隙中发送的控制信道中的除了公共控制信道之外的剩余控制信道的总功率的剩余部分中分配可用功率; 根据分配给每个控制信道的功率计算每个控制信道的增益值; 以及根据所计算的增益值来调整要发送到一个或多个接入终端（AT）的每个控制信道的增益。 因此，可以提高各控制信道的接收吞吐量。

公开(公告)号：US20080181342A1

公开(公告)日：2008-07-31

申请号：US12021794

申请日：2008-01-29

申请人： Ji-Hoon Cho ,  Kyun-Byoung Ko ,  Sung-Kwon Jo ,  Jae-Hyok Lee

发明人： Ji-Hoon Cho ,  Kyun-Byoung Ko ,  Sung-Kwon Jo ,  Jae-Hyok Lee

IPC分类号： H04B1/10

CPC分类号： H04B7/0854 ,  H04B7/0413

摘要： A Multiple Input Multiple Output (MIMO) wireless communication system is provided. A receiving end apparatus includes an estimator for estimating a channel between a plurality of Transmit (Tx) antennas of a transmitting end and a plurality of Receive (Rx) antennas of a receiving end; a filter for extracting a sum between interference and noise included in an Rx signal by using the estimated channel value and for computing a covariance matrix for the sum between the interference and the noise; and a detector for detecting a Tx signal by using a signal processing matrix generated from the covariance matrix.

摘要翻译： 提供了多输入多输出（MIMO）无线通信系统。 接收端装置包括：估计器，用于估计发送端的多个发送（Tx）天线与接收端的多个接收（Rx）天线之间的信道; 滤波器，用于通过使用所估计的信道值提取包含在Rx信号中的干扰和噪声之间的和，并且用于计算干扰和噪声之和的协方差矩阵; 以及检测器，用于通过使用从协方差矩阵生成的信号处理矩阵来检测Tx信号。

公开(公告)号：US20050130663A1

公开(公告)日：2005-06-16

申请号：US10996051

申请日：2004-11-24

申请人： Ki-Seob Hong ,  Dong-Jun Lee ,  Sung-Kwon Jo

发明人： Ki-Seob Hong ,  Dong-Jun Lee ,  Sung-Kwon Jo

IPC分类号： H04B7/26 ,  H04L1/00 ,  H04L1/16 ,  H04L1/20 ,  H04Q7/20

CPC分类号： H04L1/0026 ,  H04L1/0002 ,  H04L1/1671 ,  H04L1/20

摘要： An apparatus and method for controlling a forward data rate by an access terminal in a mobile communication system having at least one access terminal and an access point capable of performing packet data communication with the access terminal. The apparatus and method comprise receiving packet data information including a target packet error rate (PER) from the access point over a forward link channel and decoding the received packet data information; adjusting target PERs for respective data rate control (DRC) values according to the decoded packet data information; selecting one of the adjusted target PERs according to the decoded packet data information, and determining the selected target PER as a target PER for a DRC value to be transmitted; estimating a carrier-to-interference ratio (C/I) for the received packet data information; and determining a DRC value satisfying the determined target PER using the estimated C/I.

摘要翻译： 一种用于在具有至少一个接入终端和能够与接入终端进行分组数据通信的接入点的移动通信系统中由接入终端控制正向数据速率的装置和方法。 该装置和方法包括：通过前向链路信道从接入点接收包括目标分组差错率（PER）的分组数据信息，并对接收的分组数据信息进行解码; 根据解码的分组数据信息调整各个数据速率控制（DRC）值的目标PER; 根据解码的分组数据信息选择调整后的目标PER中的一个，并且将所选择的目标PER确定为要发送的DRC值的目标PER; 估计所接收的分组数据信息的载波干扰比（C / I）; 以及使用所估计的C / I确定满足所确定的目标PER的DRC值。