公开(公告)号：US07457372B2

公开(公告)日：2008-11-25

申请号：US10695493

申请日：2003-10-28

申请人： Chan-Soo Hwang ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Jae-Hak Chung

发明人： Chan-Soo Hwang ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Jae-Hak Chung

IPC分类号： H04L27/04 ,  H04B1/69

CPC分类号： H04L1/065 ,  H04L1/0069 ,  H04L1/0625 ,  H04L1/0631

摘要： A mobile communication system includes at least three transmission antennas of first to third transmission antennas, and uses an overlapped antenna scheme for grouping the first and second transmission antennas into a first transmission antenna group and grouping the second and third transmission antennas into a second transmission antenna group. First and second modulators modulate L information bit streams to be transmitted through the first transmission antenna group and output first and second modulation symbol streams. Third and fourth modulators modulate L other information bit streams to be transmitted through the second transmission antenna group and output third and fourth symbol streams. First to fourth puncturers puncture at least one modulation symbol in a predetermined position among the first to fourth modulation symbol streams. A multiplexer transmits a modulation symbol stream output from the first puncturer through the first transmission antenna, transmits modulation symbol streams output from the second and third puncturers through the second transmission antenna after summation, and transmits a modulation symbol stream output from the third puncturer through the third transmission antenna.

摘要翻译： 移动通信系统包括第一至第三发射天线的至少三个发射天线，并且使用重叠的天线方案将第一和第二发射天线分组成第一发射天线组，并将第二和第三发射天线分组成第二发射天线 组。 第一和第二调制器调制通过第一发送天线组发送的L个信息比特流并输出第一和第二调制符号流。 第三和第四调制器调制通过第二发送天线组发送的另外的信息比特流并输出第三和第四符号流。 第一至第四穿孔器在第一至第四调制符号流中的预定位置中至少刺穿一个调制符号。 复用器通过第一发送天线发送从第一穿孔器输出的调制符号流，在求和之后通过第二发送天线发送从第二和第三穿孔器输出的调制符号流，并且从第三穿孔器输出的调制符号流通过 第三发射天线。

公开(公告)号：US20080225970A1

公开(公告)日：2008-09-18

申请号：US12049737

申请日：2008-03-17

申请人： Dong-Ho KIM ,  In-Soo Hwang ,  Yung-Soo Kim

发明人： Dong-Ho KIM ,  In-Soo Hwang ,  Yung-Soo Kim

IPC分类号： H04L27/28

CPC分类号： H04B7/0417 ,  H04L1/0006 ,  H04L1/0625 ,  H04L1/1812 ,  H04L1/1825

摘要： Disclosed is a method to transmit a signal in a Multiple Input Multiple Output (MIMO) mobile communication system. The method includes determining a Hybrid Automatic Repeat reQuest (HARQ) scheme to be used for a transmission signal; determining a MIMO scheme to be used for the transmission signal in accordance with the determined HARQ scheme; and transmitting the transmission signal using the determined HARQ scheme and the determined MIMO scheme.

摘要翻译： 公开了一种在多输入多输出（MIMO）移动通信系统中发送信号的方法。 该方法包括确定要用于传输信号的混合自动重复请求（HARQ）方案; 根据确定的HARQ方案确定要用于发送信号的MIMO方案; 以及使用所确定的HARQ方案和所确定的MIMO方案来发送所述传输信号。

公开(公告)号：US20070206691A1

公开(公告)日：2007-09-06

申请号：US11703266

申请日：2007-02-07

申请人： Cheol-Woo You ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Yung-Soo Kim

发明人： Cheol-Woo You ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Yung-Soo Kim

IPC分类号： H04K1/10

CPC分类号： H04L25/03343 ,  H04L5/023 ,  H04L25/0226 ,  H04L2025/03802

摘要： Disclosed is a method for transmitting an uplink signal by a mobile station in a mobile communication system using an OFDMA scheme. The method includes estimating a downlink channel status by using a signal received from a base station; determining a precoding matrix by using the estimated downlink channel status; and transmitting a signal obtained by multiplying an uplink signal to be transmitted by the precoding matrix to the base station.

摘要翻译： 公开了一种移动台在使用OFDMA方案的移动通信系统中发送上行链路信号的方法。 该方法包括：使用从基站接收的信号来估计下行链路信道状态; 通过使用所估计的下行链路信道状态来确定预编码矩阵; 并且将通过预编码矩阵发送的上行链路信号乘以基站而获得的信号。

公开(公告)号：US20070155336A1

公开(公告)日：2007-07-05

申请号：US11601049

申请日：2006-11-17

申请人： Seung-Hoon Nam ,  Myeon-Kyun Cho ,  Yung-Soo Kim ,  Sei-Joon Shim ,  Kyeong-Yeon Kim ,  Chung-Yong Lee

发明人： Seung-Hoon Nam ,  Myeon-Kyun Cho ,  Yung-Soo Kim ,  Sei-Joon Shim ,  Kyeong-Yeon Kim ,  Chung-Yong Lee

IPC分类号： H04B7/00 ,  H04M1/00

CPC分类号： H04B7/0408 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0639

摘要： Provided are an apparatus and method for eliminating multi-user interference in a codebook-based beamforming system. A transmitter for providing a service to multi-users in the codebook-based beamforming system includes a beamformer for generating beamformed user signals by multiplying transmit data of users, to whom the service is to be provided, by corresponding weighting factor vectors using feedback information; a null space generator for generating a null space matrix orthogonal to weighting factor vectors of other users; and a projector for projecting the beamformed user signals on the corresponding null space matrix and transmitting the resulting signals through a plurality of antennas. Because the multi-user signals can maintain orthogonality, the performance degradation caused by the multi-user interference can be prevented.

摘要翻译： 提供了一种用于消除基于码本的波束成形系统中的多用户干扰的装置和方法。 用于在基于码本的波束成形系统中为多用户提供服务的发射机包括波束形成器，用于通过使用反馈信息将相应的加权因子向量乘以要提供服务的用户的发送数据来生成波束形成的用户信号; 零空间生成器，用于生成与其他用户的加权因子矢量正交的零空间矩阵; 以及用于将波束形成的用户信号投影在相应的零空间矩阵上并通过多个天线发送所得到的信号的投影仪。 因为多用户信号可以保持正交性，所以可以防止由多用户干扰引起的性能下降。

公开(公告)号：US20070133707A1

公开(公告)日：2007-06-14

申请号：US11603651

申请日：2006-11-22

申请人： In-Soo Hwang ,  Cheol-Woo You ,  Seung-Hoon Nam ,  Yung-Soo Kim ,  Tarokh Vahid

发明人： In-Soo Hwang ,  Cheol-Woo You ,  Seung-Hoon Nam ,  Yung-Soo Kim ,  Tarokh Vahid

IPC分类号： H04L1/02

CPC分类号： H04B7/0417 ,  H04B7/0602 ,  H04B7/061 ,  H04B7/0639 ,  H04B7/0802

摘要： Disclosed are an apparatus and a method for determining a transmit/receive antenna in a Multiple Input Multiple Output (MIMO) communication system. At least one sub-channel matrix including transmit antenna information and receive antenna information is generated. From the at least one sub-channel matrix, a sub-channel matrix having a maximum value Frobenius norm is determined. The transmit and receive antenna information are then extracted from the determined sub-channel matrix.

摘要翻译： 公开了一种用于在多输入多输出（MIMO）通信系统中确定发射/接收天线的装置和方法。 生成包括发送天线信息和接收天线信息的至少一个子信道矩阵。 从至少一个子信道矩阵确定具有最大值Frobenius范数的子信道矩阵。 然后从确定的子信道矩阵中提取发送和接收天线信息。

公开(公告)号：US07206353B2

公开(公告)日：2007-04-17

申请号：US10225420

申请日：2002-08-22

申请人： Sung-Jin Kim ,  Ki-Ho Kim ,  Hyeon-Woo Lee ,  Yong-Suk Lee ,  Jong-Hyeuk Lee ,  Yung-Soo Kim

发明人： Sung-Jin Kim ,  Ki-Ho Kim ,  Hyeon-Woo Lee ,  Yong-Suk Lee ,  Jong-Hyeuk Lee ,  Yung-Soo Kim

IPC分类号： H04L7/02 ,  H04L27/36 ,  H04B7/02 ,  H04B7/08

CPC分类号： H04B7/0634 ,  H04B7/086

摘要： A mobile communication apparatus having an antenna array and a mobile communication method performed in the mobile communication apparatus, wherein the mobile communication apparatus includes a base station and mobile station, each having an antenna array. The mobile station measures the downlink characteristics of a channel for each antenna from a signal received from a base station, determines long-term information in which the correlation property of the channel for each antenna has been reflected from the measured downlink characteristics, transforms the long-term information into a feedback signal, and transmits the feedback signal to the base station. The base station receives the feedback signal, restores the long-term information from the received feedback signal, performs basis mapping and basis transformation on a dedicated physical channel signal using the restored long-term information, adds the basis-mapped and basis-transformed signal to each of pilot channel signals, and transmits the addition results to the mobile station.

摘要翻译： 一种具有在移动通信装置中执行的天线阵列和移动通信方法的移动通信装置，其中移动通信装置包括基站和移动台，每个基站和移动台具有天线阵列。 移动台根据从基站接收到的信号测量每个天线的信道的下行链路特性，确定其中每个天线的信道的相关属性已经从测量的下行链路特性反映的长期信息， 将信息输入到反馈信号中，并将反馈信号发送到基站。 基站接收反馈信号，从接收到的反馈信号中恢复长期信息，使用恢复的长期信息对专用物理信道信号执行基础映射和基变换，将基准映射和基准变换信号 对每个导频信道信号，并将相加结果发送给移动台。

公开(公告)号：US20070064666A1

公开(公告)日：2007-03-22

申请号：US11512920

申请日：2006-08-30

申请人： Jong-Hyung Kwun ,  Yung-Soo Kim

发明人： Jong-Hyung Kwun ,  Yung-Soo Kim

IPC分类号： H04J1/00

CPC分类号： H04W72/06 ,  H04W16/06 ,  H04W16/14

摘要： A method of allocating resources to control information transmitted from a base station (BS) to a subscriber terminal in a downlink (DL) frame and the subscriber terminal for receiving the control information are provided. A preamble and a common control channel in a DL frame from a particular BS are allocated to a sub-carrier band that is different from that of a preamble and a common control channel in a DL frame from a neighbor BS, concurrently with the preamble and the common control channel of the neighbor BS. User-specific traffic in the DL frame of the particular BS is allocated to a total sub-carrier band concurrently with user-specific traffic of the neighbor BS.

摘要翻译： 提供一种分配资源以控制从下行链路（DL）帧中的从基站（BS）发送到用户终端的信息的用户接收控制信息的方法。 来自特定BS的DL帧中的前导码和公共控制信道被分配给与来自邻居BS的DL帧中的前同步码和公共控制信道的前同步码和公共控制信道不同的子载波频带， 邻居BS的公共控制信道。 特定BS的DL帧中的用户特定业务与相邻BS的用户特定业务同时分配给总副载波频带。

公开(公告)号：US20060262714A1

公开(公告)日：2006-11-23

申请号：US10546081

申请日：2004-02-13

申请人： Vahid Tarokh ,  Jae-Hak Chung ,  Yung-Soo Kim ,  Chan-Soo Hwang

发明人： Vahid Tarokh ,  Jae-Hak Chung ,  Yung-Soo Kim ,  Chan-Soo Hwang

IPC分类号： H04J11/00 ,  H04J1/00

CPC分类号： H04L27/2623 ,  H04L1/0618 ,  H04L27/2615

摘要： Provided is a method of reducing a peak-to-average-power ratio in a multiple antenna orthogonal frequency division multiplexing communication system. The method includes: reducing a peak-to-average-power ratio of input serial data sequences; space-time coding the input serial data sequences with the reduced peak-to-average-power ratio to generate N symbols to be tranmitted via N antennas; receiving the serial data sequences of the N symbols to transform the serial data sequences into N parallel data sequences; allocating each of the N parallel data sequences to Ns sub-carriers and performing Inverse Fast Fourier Transform on the N parallel data sequences; transforming the N parallel data sequences into N serial data symbols; and replicating a portion of the serial data symbols to generate cyclic prefixes and interleaving the cyclic prefixes into starting portions of the serial data symbols to cyclically expand the N symbols.

摘要翻译： 提供了一种降低多天线正交频分复用通信系统中的峰值与平均功率比的方法。 该方法包括：降低输入串行数据序列的峰值与平均功率比; 以降低的峰均功率比对输入串行数据序列进行时空编码，以产生要通过N个天线发射的N个符号; 接收N个符号的串行数据序列以将串行数据序列变换成N个并行数据序列; 将N个并行数据序列中的每一个分配给N个子载波，并在N个并行数据序列上执行快速傅立叶逆变换; 将N个并行数据序列变换为N个串行数据符号; 并且复制一部分串行数据符号以产生循环前缀并且将循环前缀交织到串行数据符号的起始部分中以循环地扩展N个符号。

公开(公告)号：US20050163097A1

公开(公告)日：2005-07-28

申请号：US11039087

申请日：2005-01-19

申请人： Mi-Sun Do ,  Yung-Soo Kim ,  Sang-Boh Yun ,  Sung-Hyun Cho ,  Sang-Hoon Lee ,  Won-Hyoung Park

发明人： Mi-Sun Do ,  Yung-Soo Kim ,  Sang-Boh Yun ,  Sung-Hyun Cho ,  Sang-Hoon Lee ,  Won-Hyoung Park

IPC分类号： H04B7/26 ,  H04L12/56 ,  H04W36/10 ,  H04W36/18 ,  G06F15/16

CPC分类号： H04W36/18 ,  H04W36/10

摘要： A wideband radio access network system in which a predetermined MN is wirelessly connected to a CN through a first IR and a second IR neighboring the first IR is tunneled to the first IR, to transmit data from the MN to the CN through at least one IR. The MN transmits data to the first and second IRs, and if at least one IR receives the data normally, the at least one IR transmits the received data to the CN through the first IR.

摘要翻译： 一种宽带无线电接入网系统，其中预定MN通过第一IR无线连接到CN，并且与第一IR相邻的第二IR被隧道传送到第一IR，通过至少一个IR将数据从MN发送到CN 。 MN向第一和第二IR发送数据，并且如果至少一个IR正常接收到数据，则至少一个IR通过第一IR将接收到的数据发送到CN。

公开(公告)号：US20050111566A1

公开(公告)日：2005-05-26

申请号：US10924463

申请日：2004-08-23

申请人： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

发明人： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

IPC分类号： H04B7/005 ,  H04B7/06 ,  H04L27/00

CPC分类号： H04B7/061 ,  H04B7/0669 ,  H04W52/42

摘要： Disclosed is a wireless communication apparatus and method for a multiple transmit and receive antenna system using multiple codes. In suggested detection algorithm, a successive interference cancellation (SIC) scheme is employed in both an antenna domain and a code domain by successively canceling multi-code interference (MCI). An effective transmit power allocation method suitable for the detection algorithm is suggested. Transmit power allocated to each code is calculated. The transmit power is determined as a simple ratio of power of a certain signal to power of a next code signal. Based on the calculated code transmit power, transmit power for each transmit antenna is allocated. Thus, information about transmit power calculated at a receive end is feedback to a transmit end through a feedback channel.

摘要翻译： 公开了一种使用多个码的多发射和接收天线系统的无线通信装置和方法。 在建议的检测算法中，通过连续取消多码干扰（MCI），在天线域和码域中采用连续干扰消除（SIC）方案。 建议适用于检测算法的有效发射功率分配方法。 计算分配给每个代码的发射功率。 发送功率被确定为特定信号的功率与下一个码信号的功率的简单比率。 基于计算出的码发射功率，分配每个发射天线的发射功率。 因此，在接收端计算的关于发射功率的信息通过反馈信道反馈到发射端。