公开(公告)号：US20110188599A1

公开(公告)日：2011-08-04

申请号：US13019366

申请日：2011-02-02

申请人： Seung-Won Kang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Keun-Chul Hwang

发明人： Seung-Won Kang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Keun-Chul Hwang

IPC分类号： H04B7/02

CPC分类号： H04B7/02

摘要： A method and an apparatus for pre-scheduling in a closed-loop multiple user multiple input multiple output (MU-MIMO) antenna system. A base station receives channel information representing a downlink channel condition of each mobile station from mobile stations in a cell, and determines a candidate user group for each of frequency bands included in an entire frequency band, based on the channel information, the candidate user group including mobile stations to which resources can be simultaneously allocated. The base station also instructs a mobile station included in each candidate user group to transmit a sounding signal through a corresponding frequency band. If the sounding signal is received through the corresponding frequency band, the base station performs a scheduling with regard to the mobile station included in each candidate user group.

摘要翻译： 一种用于在闭环多用户多输入多输出（MU-MIMO）天线系统中进行预调度的方法和装置。 基站从小区中的移动台接收表示各移动站的下行链路信道状态的信道信息，并根据信道信息确定候选用户组，该候选用户组中包含在整个频带中的频带中的每个频带，候选用户组 包括可以同时分配资源的移动台。 基站还指示包括在每个候选用户组中的移动台通过对应的频带发送探测信号。 如果通过相应的频带接收到探测信号，则基站对每个候选用户组中包括的移动台进行调度。

公开(公告)号：US08711964B2

公开(公告)日：2014-04-29

申请号：US13019366

申请日：2011-02-02

申请人： Seung-Won Kang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Keun-Chul Hwang

发明人： Seung-Won Kang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Keun-Chul Hwang

IPC分类号： H04B7/02

CPC分类号： H04B7/02

摘要： A method and an apparatus for pre-scheduling in a closed-loop multiple user multiple input multiple output (MU-MIMO) antenna system. A base station receives channel information representing a downlink channel condition of each mobile station from mobile stations in a cell, and determines a candidate user group for each of frequency bands included in an entire frequency band, based on the channel information, the candidate user group including mobile stations to which resources can be simultaneously allocated. The base station also instructs a mobile station included in each candidate user group to transmit a sounding signal through a corresponding frequency band. If the sounding signal is received through the corresponding frequency band, the base station performs a scheduling with regard to the mobile station included in each candidate user group.

摘要翻译： 一种用于在闭环多用户多输入多输出（MU-MIMO）天线系统中进行预调度的方法和装置。 基站从小区中的移动台接收表示各移动站的下行链路信道状态的信道信息，并根据信道信息确定候选用户群，该候选用户群基于频道信息，包含在候选用户组 包括可以同时分配资源的移动台。 基站还指示包括在每个候选用户组中的移动台通过对应的频带发送探测信号。 如果通过相应的频带接收到探测信号，则基站对每个候选用户组中包括的移动台进行调度。

公开(公告)号：US20070150797A1

公开(公告)日：2007-06-28

申请号：US11638785

申请日：2006-12-14

申请人： Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  June Moon

发明人： Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  June Moon

IPC分类号： H03M13/00

CPC分类号： H04L1/005 ,  H04B7/0417 ,  H04B7/0848 ,  H04L1/0052 ,  H04L1/06

摘要： A partial iterative detection and decoding apparatus in a Multiple Input Multiple Output (MIMO) system includes a detector for detecting signals received through at least one receive antenna to generate a first soft decision value, a decoder for decoding the first soft decision value to generate a second soft decision value, and a reliability determiner for determining a signal to be iteratively detected and decoded by using the second soft decision value. Accordingly, the complexity of the receiver is reduced and the number of iterations limited due to the complexity is increased, thereby improving the performance of the receiver.

摘要翻译： 多输入多输出（MIMO）系统中的部分迭代检测和解码装置包括用于检测通过至少一个接收天线接收的信号以产生第一软判决值的检测器，用于解码第一软判决值以产生 第二软判决值，以及用于通过使用第二软判决值来确定要迭代检测和解码的信号的可靠性确定器。 因此，接收机的复杂度降低，并且由于复杂性而限制的迭代次数增加，从而提高了接收机的性能。

公开(公告)号：US08279962B2

公开(公告)日：2012-10-02

申请号：US12357900

申请日：2009-01-22

申请人： June Moon ,  Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon

发明人： June Moon ,  Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon

IPC分类号： H04B7/02

CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0645 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0618 ,  H04W72/04 ,  H04W72/082

摘要： A method and apparatus for allocating a feedback channel in a multiple antenna communication system are provided. In a method of operating a Base Station (BS) for allocating a feedback channel in a Multi-User Multiple-Input Multiple-Output (MU-MIMO) communication system, the method includes measuring a MIMO transmission environment, determining an amount of feedback according to the MIMO transmission environment, and allocating a feedback channel according to an amount of the feedback.

摘要翻译： 提供了一种用于在多天线通信系统中分配反馈信道的方法和装置。 在多用户多输入多输出（MU-MIMO）通信系统中操作用于分配反馈信道的基站（BS）的方法中，该方法包括测量MIMO传输环境，根据 到MIMO传输环境，并且根据反馈量来分配反馈信道。

公开(公告)号：US07720181B2

公开(公告)日：2010-05-18

申请号：US11638786

申请日：2006-12-14

申请人： Sung-Woo Park ,  Keun-Chul Hwang ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  June Moon ,  Soong-Yoon Choi

发明人： Sung-Woo Park ,  Keun-Chul Hwang ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  June Moon ,  Soong-Yoon Choi

IPC分类号： H04L27/06

CPC分类号： H04L1/005 ,  H04L1/0048 ,  H04L25/03242 ,  H04L27/2647 ,  H04L2025/03426

摘要： An Iterative Detection and Decoding (IDD) receiving apparatus and method in a multiple input multiple output (MIMO) communication system. The IDD receiving apparatus includes an MIMO detector which generates soft decision values of coded bits by MIMO-decoding a receive vector, feedback priori information, and a list of candidate coded symbol vectors; a decoder which Soft-Input/Soft-Output (SISO)-decodes the soft decision values generated at the MIMO detector and feeds back soft decision values of the coded bits to the MIMO detector; a hard decision part which generates a coded symbol vector by performing a hard decision on the soft decision values generated at the decoder; and a list updater which generates a list of candidate coded symbol vectors using the receive vector and provides the list to the MIMO detector at a first iteration, updates the list using the coded symbol vector fed from the hard decision part, and provides the updated list to the MIMO detector at subsequent iterations.

摘要翻译： 一种多输入多输出（MIMO）通信系统中的迭代检测和解码（IDD）接收装置和方法。 IDD接收装置包括MIMO检测器，其通过对接收向量进行MIMO解码，反馈先验信息和候选编码符号向量列表来生成编码比特的软判决值; 软输入/软输出（SISO）的解码器 - 对在MIMO检测器处产生的软判决值进行解码，并将编码比特的软判决值反馈给MIMO检测器; 硬判决部分，通过对解码器上产生的软决策值执行硬判决来产生编码符号向量; 以及列表更新器，其使用接收向量生成候选编码符号向量的列表，并且在第一次迭代时将该列表提供给MIMO检测器，使用从硬判决部分馈送的编码符号向量来更新列表，并提供更新的列表 在随后的迭代中到MIMO检测器。

公开(公告)号：US08054904B2

公开(公告)日：2011-11-08

申请号：US11638785

申请日：2006-12-14

申请人： Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  June Moon

发明人： Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  June Moon

IPC分类号： H04B7/02

CPC分类号： H04L1/005 ,  H04B7/0417 ,  H04B7/0848 ,  H04L1/0052 ,  H04L1/06

摘要： A partial iterative detection and decoding apparatus in a Multiple Input Multiple Output (MIMO) system includes a detector for detecting signals received through at least one receive antenna to generate a first soft decision value, a decoder for decoding the first soft decision value to generate a second soft decision value, and a reliability determiner for determining a signal to be iteratively detected and decoded by using the second soft decision value. Accordingly, the complexity of the receiver is reduced and the number of iterations limited due to the complexity is increased, thereby improving the performance of the receiver.

摘要翻译： 多输入多输出（MIMO）系统中的部分迭代检测和解码装置包括用于检测通过至少一个接收天线接收的信号以产生第一软判决值的检测器，用于解码第一软判决值以产生 第二软判决值，以及用于通过使用第二软判决值来确定要迭代检测和解码的信号的可靠性确定器。 因此，接收机的复杂度降低，并且由于复杂性而限制的迭代次数增加，从而提高了接收机的性能。

公开(公告)号：US08027401B2

公开(公告)日：2011-09-27

申请号：US11640618

申请日：2006-12-18

申请人： Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Soong-Yoon Choi

发明人： Keun-Chul Hwang ,  Sung-Woo Park ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Soong-Yoon Choi

IPC分类号： H04L1/02

CPC分类号： H04L1/005 ,  H04L25/03171 ,  H04L25/03318

摘要： An iterative detection and decoding method in a Multiple Input Multiple Output (MIMO) system includes detecting entire MIMO nodes to generate soft decision values; decoding a first soft decision value among the soft decision values; determining whether to perform an iterative detection and decoding by measuring reliability of the decoded first decoding signal; generating a soft decision value by performing a redetection of a MIMO node containing the soft decision value, when the decoded soft decision value is iteratively detected and decoded; and decoding a second soft decision value among the soft decision values.

摘要翻译： 多输入多输出（MIMO）系统中的迭代检测和解码方法包括检测整个MIMO节点以产生软判决值; 解码软判决值中的第一软判决值; 通过测量解码的第一解码信号的可靠性来确定是否执行迭代检测和解码; 当解码的软判决值被迭代检测和解码时，通过执行包含软判决值的MIMO节点的重新检测来产生软判决值; 以及对所述软判决值中的第二软判决值进行解码。

公开(公告)号：US20070133709A1

公开(公告)日：2007-06-14

申请号：US11638786

申请日：2006-12-14

申请人： Sung-Woo Park ,  Keun-Chul Hwang ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  June Moon ,  Soong-Yoon Choi

发明人： Sung-Woo Park ,  Keun-Chul Hwang ,  Soon-Young Yoon ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  June Moon ,  Soong-Yoon Choi

IPC分类号： H04L1/02

CPC分类号： H04L1/005 ,  H04L1/0048 ,  H04L25/03242 ,  H04L27/2647 ,  H04L2025/03426

摘要： An Iterafive Detection and Decoding (IDD) receiving apparatus and method in a multiple input multiple output (MIMO) communication system. The IDD receiving apparatus includes an MIMO detector which generates soft decision values of coded bits by MIMO-decoding a receive vector, feedback priori information, and a list of candidate coded symbol vectors; a decoder which Soft-Input/Soft-Output (SISO)-decodes the soft decision values generated at the MIMO detector and feeds back soft decision values of the coded bits to the MIMO detector; a hard decision part which generates a coded symbol vector by performing a hard decision on the soft decision values generated at the decoder; and a list updater which generates a list of candidate coded symbol vectors using the receive vector and provides the list to the MIMO detector at a first iteration, updates the list using the coded symbol vector fed from the hard decision part, and provides the updated list to the MIMO detector at subsequent iterations.

摘要翻译： 一种多输入多输出（MIMO）通信系统中的Iterafive检测和解码（IDD）接收装置和方法。 IDD接收装置包括MIMO检测器，其通过对接收向量进行MIMO解码，反馈先验信息和候选编码符号向量列表来生成编码比特的软判决值; 软输入/软输出（SISO）的解码器 - 对在MIMO检测器处产生的软判决值进行解码，并将编码比特的软判决值反馈给MIMO检测器; 硬判决部分，通过对解码器上产生的软决策值执行硬判决来生成编码符号向量; 以及列表更新器，其使用接收向量生成候选编码符号向量的列表，并且在第一次迭代时将该列表提供给MIMO检测器，使用从硬判决部分馈送的编码符号向量来更新列表，并提供更新的列表 在随后的迭代中到MIMO检测器。

公开(公告)号：US08553793B2

公开(公告)日：2013-10-08

申请号：US12370896

申请日：2009-02-13

申请人： Chung-Ryul Chang ,  June Moon ,  Soon-Young Yoon ,  Keun-Chul Hwang ,  Sung-Woo Park

发明人： Chung-Ryul Chang ,  June Moon ,  Soon-Young Yoon ,  Keun-Chul Hwang ,  Sung-Woo Park

IPC分类号： H04B7/02

CPC分类号： H04J11/003 ,  H04B7/0417 ,  H04B7/0639 ,  H04B2201/70701 ,  H04L1/0026 ,  H04L25/0202 ,  H04L27/2626 ,  H04L27/2647

摘要： An apparatus and method for transmitting feedback information are provided. In a method of operating a transmitter for transmitting feedback information in a broadband wireless access system, the method includes estimating a channel of a second path on the basis of information of a received downlink frame, obtaining a channel representative value corresponding to the estimated channel of the second path, modulating the channel representative value by spreading the channel representative value to a sounding symbol to be transmitted, and transmitting the modulated sounding symbol through a first path.

摘要翻译： 提供了一种用于发送反馈信息的装置和方法。 一种在宽带无线接入系统中操作发送反馈信息的发送机的方法中，所述方法包括基于接收到的下行链路帧的信息来估计第二路径的信道，获得与所估计的信道的估计信道对应的信道代表值 第二路径，通过将信道代表值扩展到要发送的探测符号来调制信道代表值，并通过第一路径发送调制的探测符号。

公开(公告)号：US20090061842A1

公开(公告)日：2009-03-05

申请号：US12229925

申请日：2008-08-28

申请人： Sung-Woo Park ,  Keun-Chul Hwang ,  Soon-Young Yoon ,  Heon-Ki Chae

发明人： Sung-Woo Park ,  Keun-Chul Hwang ,  Soon-Young Yoon ,  Heon-Ki Chae

IPC分类号： H04W40/16

CPC分类号： H04W72/1231 ,  H04B7/0617 ,  H04W16/28 ,  H04W72/046

摘要： An apparatus and a method for interference cancellation in a wireless communication system are provided. The method includes receiving channel information from one or more terminals; classifying the terminals into terminals interfered by a neighbor cell and terminals not interfered by the neighbor cell based on the channel information of the terminals; and allocating the terminals interfered by the neighbor cell and the terminals not interfered by the neighbor cell into different resource regions. The transmitter forms the beam taking into consideration the neighbor-cell interference by acquiring the channel information of the neighbor-cell terminals interfered by the transmitter and the scheduled terminal information during beamforming.

摘要翻译： 提供了一种用于无线通信系统中的干扰消除的装置和方法。 该方法包括从一个或多个终端接收信道信息; 根据终端的信道信息将终端分类为相邻小区干扰的终端和不被邻居小区干扰的终端; 并且分配由相邻小区干扰的终端和不被相邻小区干扰的终端进入不同的资源区域。 考虑到相邻小区干扰，发射机通过获取发射机干扰的邻居小区的信道信息和波束形成过程中调度的终端信息来形成波束。