公开(公告)号：US07792088B2

公开(公告)日：2010-09-07

申请号：US10579892

申请日：2004-09-08

申请人： Jae-Young Ahn ,  Kwang-Soon Kim

发明人： Jae-Young Ahn ,  Kwang-Soon Kim

IPC分类号： H04B7/208

CPC分类号： H04L5/023 ,  H04L27/2608 ,  H04W72/06

摘要： Disclosed is a method for partitioning resource spaces, and allocating physical channels and power in an OFDMA-based cellular system. A resource within a slot is partitioned into resource spaces in common in a plurality of adjacent cells, and the partitioned resource spaces are partitioned into resource sets according to sizes of physical channels in the adjacent cells. The physical channels classified by predetermined characteristics are respectively assigned to the partitioned resource sets within the resource space. Further, the resource space for transmitting traffic channels between two different cells is partitioned into resource spaces so that the traffic channels in the same subspace may be collided with each other, and a power control is applied between the collided channels to control the interference from the adjacent cells.

摘要翻译： 公开了一种在基于OFDMA的蜂窝系统中分配资源空间以及分配物理信道和功率的方法。 时隙内的资源在多个相邻小区中共同划分为资源空间，并且根据相邻小区中的物理信道的大小将划分的资源空间划分为资源集。 通过预定特性分类的物理信道分别分配给资源空间内的分区资源集。 此外，用于在两个不同小区之间传输业务信道的资源空间被划分为资源空间，使得相同子空间中的业务信道可能相互冲突，并且在冲突信道之间应用功率控制以控制来自 相邻细胞。

公开(公告)号：US20070133386A1

公开(公告)日：2007-06-14

申请号：US10577034

申请日：2003-11-19

申请人： Kwang-Soon Kim ,  Jae-Young Ahn ,  Yong Cho ,  Dong-Han Kim

发明人： Kwang-Soon Kim ,  Jae-Young Ahn ,  Yong Cho ,  Dong-Han Kim

IPC分类号： H04J11/00

CPC分类号： H04J11/0069 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2656 ,  H04L27/2659 ,  H04L27/266 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2675 ,  H04L27/2678

摘要： Disclosed is a downlink signal configuring method and device, and synchronization and cell search method and device using the same in a mobile communication system. A downlink frame has plural symbols into which pilot subcarriers are distributively arranged with respect to time and frequency axes. Initial symbol synchronization and initial frequency synchronization are estimated by using a position at which autocorrelation of a cyclic prefix of a downlink signal and a valid symbol of the downlink is maximized, and cell search and integer-times frequency synchronization are estimated by using pilot subcarriers included in the estimated symbol. Fine symbol synchronization, fine frequency synchronization, and downlink frame synchronization is estimated by using an estimated cell search result. Downlink frequency and time tracking is performed, cell tracking is performed by using a position set of pilot subcarriers inserted into the downlink frame, fine symbol synchronization tracking and fine frequency synchronization tracking are repeated by using the pilot subcarriers to perform the frequency and time tracking of the downlink frame.

摘要翻译： 公开了一种下行链路信号配置方法和装置，以及在移动通信系统中使用其的同步和小区搜索方法及装置。 下行链路帧具有多个符号，导频子载波相对于时间轴和频率轴分布布置在其中。 通过使用下行链路信号的循环前缀和下行链路的有效符号的自相关被最大化的位置来估计初始符号同步和初始频率同步，并且通过使用包括的导频子载波来估计小区搜索和整数倍的频率同步 在估计的符号。 通过使用估计的小区搜索结果来估计精细符号同步，精细频率同步和下行链路帧同步。 执行下行链路频率和时间跟踪，通过使用插入到下行链路帧中的导频子载波的位置集来执行小区跟踪，通过使用导频子载波来重复精细符号同步跟踪和精细频率同步跟踪，以执行频率和时间跟踪 下行帧。

公开(公告)号：US20070099577A1

公开(公告)日：2007-05-03

申请号：US11438667

申请日：2006-05-23

申请人： Hee-Soo Lee ,  Jae-Young Ahn ,  Young-Jo Ko ,  Du-Ho Rhee ,  Kwang-Soon Kim

发明人： Hee-Soo Lee ,  Jae-Young Ahn ,  Young-Jo Ko ,  Du-Ho Rhee ,  Kwang-Soon Kim

IPC分类号： H04B17/00 ,  H04B7/00

CPC分类号： H04W52/262 ,  H04B17/24 ,  H04B17/26 ,  H04B17/336 ,  H04B17/373 ,  H04L1/0026 ,  H04L25/0232 ,  H04L27/2601 ,  H04W52/226 ,  H04W52/247 ,  H04W52/346

摘要： Provided are an apparatus and method for generating channel information and apparatus and method for adaptive transmission employing the same. The channel information generation apparatus comprises an estimator for estimating current channel information of a multi-carrier received signal for each path, a short-period channel information generator for predicting channel information after a predetermined minimum transmission delay time based on the current channel information estimated by the estimator to generate short-period channel information, and a long-period channel information generator for deriving statistic information of error between the channel information predicted by the short-period channel information generator and actual channel information at the time of transmission to produce long-period channel information. The invention is applied to mobile communication systems using multi-carrier.

摘要翻译： 提供一种用于产生信道信息的装置和方法，以及采用该信道信息的自适应传输的装置和方法。 信道信息生成装置包括：估计器，用于估计每个路径的多载波接收信号的当前信道信息;短周期信道信息发生器，用于基于由当前信道信息估计的预定最小传输延迟时间来预测信道信息; 用于产生短周期信道信息的估计器和用于导出由短周期信道信息发生器预测的信道信息与传输时的实际信道信息之间的误差的统计信息的长周期信道信息发生器， 期间频道信息。 本发明应用于使用多载波的移动通信系统。

公开(公告)号：USRE47278E1

公开(公告)日：2019-03-05

申请号：US13445263

申请日：2012-04-12

申请人： Kwang-Soon Kim ,  Jae-Young Ahn ,  Yong Soo Cho ,  Dong-Han Kim

发明人： Kwang-Soon Kim ,  Jae-Young Ahn ,  Yong Soo Cho ,  Dong-Han Kim

IPC分类号： H04J11/00 ,  H04L5/00 ,  H04L27/26

摘要： Disclosed is a downlink signal configuring method and device, and synchronization and cell search method and device using the same in a mobile communication system. A downlink frame has plural symbols into which pilot subcarriers are distributively arranged with respect to time and frequency axes. Initial symbol synchronization and initial frequency synchronization are estimated by using a position at which autocorrelation of a cyclic prefix of a downlink signal and a valid symbol of the downlink is maximized, and cell search and integer-times frequency synchronization are estimated by using pilot subcarriers included in the estimated symbol. Fine symbol synchronization, fine frequency synchronization, and downlink frame synchronization is estimated by using an estimated cell search result. Downlink frequency and time tracking is performed, cell tracking is performed by using a position set of pilot subcarriers inserted into the downlink frame, fine symbol synchronization tracking and fine frequency synchronization tracking are repeated by using the pilot subcarriers to perform the frequency and time tracking of the downlink frame.

公开(公告)号：US08666426B2

公开(公告)日：2014-03-04

申请号：US12096324

申请日：2005-12-19

申请人： Young-Jo Ko ,  Jae-Young Ahn ,  Kwang-Soon Kim ,  Jung-Hyoung Kwon ,  Keum-Chan Whang

发明人： Young-Jo Ko ,  Jae-Young Ahn ,  Kwang-Soon Kim ,  Jung-Hyoung Kwon ,  Keum-Chan Whang

IPC分类号： H04W72/00

CPC分类号： H04W72/0453 ,  H04L5/006 ,  H04L5/023 ,  H04L25/0204 ,  H04L27/2608 ,  H04W72/085

摘要： The present invention relates to an adaptive transmitting device using limited feedback information in a mobile communication system, and a method thereof. According to an exemplary embodiment of the present invention, when the base station transmits a pilot signal to the terminal, the terminal generates channel information by using the pilot signal, generates additional channel information from the channel information, and transmits the channel information and the additional channel information to the base station. The base station determines band allocation, power allocation, and modulation methods for each use by using received feedback information, and transmits modulated traffic data to the terminal according to the determined methods.

摘要翻译： 本发明涉及一种在移动通信系统中使用有限反馈信息的自适应发送装置及其方法。 根据本发明的示例性实施例，当基站向终端发送导频信号时，终端通过使用导频信号生成信道信息，从信道信息生成附加信道信息，并发送信道信息和附加信道 信道信息到基站。 基站通过使用接收到的反馈信息来确定每个使用的频带分配，功率分配和调制方法，并且根据确定的方法向终端发送调制的业务数据。

公开(公告)号：US07764593B2

公开(公告)日：2010-07-27

申请号：US10577034

申请日：2003-11-19

申请人： Kwang-Soon Kim ,  Jae-Young Ahn ,  Yong Soo Cho ,  Dong-Han Kim

发明人： Kwang-Soon Kim ,  Jae-Young Ahn ,  Yong Soo Cho ,  Dong-Han Kim

IPC分类号： H04J11/00

CPC分类号： H04J11/0069 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2656 ,  H04L27/2659 ,  H04L27/266 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2675 ,  H04L27/2678

摘要： Disclosed is a downlink signal configuring method and device, and synchronization and cell search method and device using the same in a mobile communication system. A downlink frame has plural symbols into which pilot subcarriers are distributively arranged with respect to time and frequency axes. Initial symbol synchronization and initial frequency synchronization are estimated by using a position at which autocorrelation of a cyclic prefix of a downlink signal and a valid symbol of the downlink is maximized, and cell search and integer-times frequency synchronization are estimated by using pilot subcarriers included in the estimated symbol. Fine symbol synchronization, fine frequency synchronization, and downlink frame synchronization is estimated by using an estimated cell search result. Downlink frequency and time tracking is performed, cell tracking is performed by using a position set of pilot subcarriers inserted into the downlink frame, fine symbol synchronization tracking and fine frequency synchronization tracking are repeated by using the pilot subcarriers to perform the frequency and time tracking of the downlink frame.

摘要翻译： 公开了一种下行链路信号配置方法和装置，以及在移动通信系统中使用其的同步和小区搜索方法及装置。 下行链路帧具有多个符号，导频子载波相对于时间轴和频率轴分布布置在其中。 通过使用下行链路信号的循环前缀和下行链路的有效符号的自相关被最大化的位置来估计初始符号同步和初始频率同步，并且通过使用包括的导频子载波来估计小区搜索和整数倍的频率同步 在估计的符号。 通过使用估计的小区搜索结果来估计精细符号同步，精细频率同步和下行链路帧同步。 执行下行链路频率和时间跟踪，通过使用插入到下行链路帧中的导频子载波的位置集来执行小区跟踪，通过使用导频子载波来重复精细符号同步跟踪和精细频率同步跟踪，以执行频率和时间跟踪 下行帧。

公开(公告)号：US20090221238A1

公开(公告)日：2009-09-03

申请号：US12097439

申请日：2006-12-05

申请人： Young-Jo Ko ,  Jae-Young Ahn ,  Kwang-Soon Kim ,  Du-Ho Rhee

发明人： Young-Jo Ko ,  Jae-Young Ahn ,  Kwang-Soon Kim ,  Du-Ho Rhee

IPC分类号： H04B17/00

CPC分类号： H04L5/0007 ,  H04L1/0019 ,  H04L25/0224

摘要： A receiving apparatus of a UE transmits at least one channel information among a plurality of channel information to a transmitting apparatus of a base station according to an adaptive transmission method set for a received signal. In addition, the receiving apparatus transmits channel state information generated on the basis of the plurality of channel information to the transmitting apparatus with a relatively long interval. The transmitting apparatus transmits traffic data to the transmitting apparatus by using the received channel state information and at least one of channel information and one of a plurality of adaptive transmission methods. Accordingly, the amount of channel information transmitted to the transmitting apparatus can be modified in accordance with an adaptive transmission method set for a received signal, thereby minimizing the amount of channel information fed back from the receiving apparatus and increasing system capacity.

摘要翻译： UE的接收装置根据对接收到的信号设定的自适应发送方法，将多个信道信息中的至少一个信道信息发送给基站的发送装置。 此外，接收装置以相对长的间隔向发送装置发送基于多个信道信息生成的信道状态信息。 发送装置通过使用接收到的信道状态信息和信道信息以及多种自适应发送方法中的至少一种来向业务数据发送业务数据。 因此，可以根据为接收信号设置的自适应发送方法来修改发送到发送装置的信道信息量，从而使从接收装置反馈的信道信息的量最小化并提高系统容量。

公开(公告)号：US20080305818A1

公开(公告)日：2008-12-11

申请号：US12096324

申请日：2005-12-19

申请人： Young-Jo Ko ,  Jae-Young Ahn ,  Kwang-Soon Kim ,  Jung-Hyoung Kwon ,  Keum-Chan Whang

发明人： Young-Jo Ko ,  Jae-Young Ahn ,  Kwang-Soon Kim ,  Jung-Hyoung Kwon ,  Keum-Chan Whang

IPC分类号： H04Q7/00

CPC分类号： H04W72/0453 ,  H04L5/006 ,  H04L5/023 ,  H04L25/0204 ,  H04L27/2608 ,  H04W72/085

摘要： The present invention relates to an adaptive transmitting device using limited feedback information in a mobile communication system, and a method thereof. According to an exemplary embodiment of the present invention, when the base station transmits a pilot signal to the terminal, the terminal generates channel information by using the pilot signal, generates additional channel information from the channel information, and transmits the channel information and the additional channel information to the base station. The base station determines band allocation, power allocation, and modulation methods for each use by using received feedback information, and transmits modulated traffic data to the terminal according to the determined methods.

摘要翻译： 本发明涉及一种在移动通信系统中使用有限反馈信息的自适应发送装置及其方法。 根据本发明的示例性实施例，当基站向终端发送导频信号时，终端通过使用导频信号生成信道信息，从信道信息生成附加信道信息，并发送信道信息和附加信道 信道信息到基站。 基站通过使用接收到的反馈信息来确定每个使用的频带分配，功率分配和调制方法，并且根据确定的方法向终端发送调制的业务数据。

公开(公告)号：US20050229087A1

公开(公告)日：2005-10-13

申请号：US11105922

申请日：2005-04-13

申请人： Sunghwan Kim ,  Yong-June Kim ,  Jong-Seon No ,  Sang-Hyun Lee ,  Yun-Hee Kim ,  Jae-Young Ahn

发明人： Sunghwan Kim ,  Yong-June Kim ,  Jong-Seon No ,  Sang-Hyun Lee ,  Yun-Hee Kim ,  Jae-Young Ahn

IPC分类号： G06F11/00 ,  H03M13/00 ,  H03M13/11

CPC分类号： H03M13/6356 ,  H03M13/1105 ,  H03M13/114 ,  H03M13/6362

摘要： Disclosed is a decoding apparatus for LDPC (Low-Density Parity-Check) codes when receiving data encoded with LDPC codes on a channel having consecutive output values, and a method thereof. The decoding method for LDPC codes uses sequential decoding and includes: (a) dividing nodes into check nodes for a parity-check message and variable nodes for a bit message according to a parity-check matrix; (b) dividing the check nodes into a predetermined number of subsets; (c) sequentially decoding the LDPC codeword of each subset for all the check nodes; (d) generating an output message for verifying validity of the decoding result; and (e) iteratively performing the steps (b), (c), and (d) by a predetermined number of iterations.

摘要翻译： 公开了一种在具有连续输出值的信道上接收用LDPC码编码的数据时的LDPC（低密度奇偶校验）码的解码装置及其方法。 LDPC码的解码方法使用顺序解码，并且包括：（a）根据奇偶校验矩阵将节点划分成用于奇偶校验消息的校验节点和用于位消息的可变节点; （b）将校验节点划分成预定数量的子集; （c）对于所有校验节点顺序解码每个子集的LDPC码字; （d）生成用于验证解码结果的有效性的输出消息; 和（e）以预定次数的迭代迭代地执行步骤（b），（c）和（d）。

公开(公告)号：USRE44421E1

公开(公告)日：2013-08-06

申请号：US13233476

申请日：2011-09-15

申请人： Sunghwan Kim ,  Yong-June Kim ,  Jong-Seon No ,  Sang-Hyun Lee ,  Yun-Hee Kim ,  Jae-Young Ahn

发明人： Sunghwan Kim ,  Yong-June Kim ,  Jong-Seon No ,  Sang-Hyun Lee ,  Yun-Hee Kim ,  Jae-Young Ahn

IPC分类号： H03M13/00

CPC分类号： H03M13/6356 ,  H03M13/1105 ,  H03M13/114 ,  H03M13/6362

摘要： Disclosed is a decoding apparatus for LDPC (Low-Density Parity-Check) codes when receiving data encoded with LDPC codes on a channel having consecutive output values, and a method thereof. The decoding method for LDPC codes uses sequential decoding and includes the following steps: (a) the nodes are divided according to a parity-check matrix into check nodes for a parity-check message and variable nodes for a bit message; (b) the check nodes are divided into a predetermined number of subsets; (c) the LDPC codeword of each subset for all the check nodes is sequentially decoded; (d) an output message is generated for verifying validity of the decoding result; and (e) the steps (b), (c), and (d) are iteratively performed by a predetermined number of iterations.