公开(公告)号：US08818440B2

公开(公告)日：2014-08-26

申请号：US12661759

申请日：2010-03-23

申请人： Jae-Yun Ko ,  Keun-Chul Hwang ,  Seung-Won Kang ,  Soon-Young Yoon ,  Won-Jin Sung ,  Byung-Seok Lee ,  Ji-Won Lee

发明人： Jae-Yun Ko ,  Keun-Chul Hwang ,  Seung-Won Kang ,  Soon-Young Yoon ,  Won-Jin Sung ,  Byung-Seok Lee ,  Ji-Won Lee

IPC分类号： H04B7/00

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04W52/40

摘要： An apparatus is operable to control power of a base station in a distributed Multiple Input Multiple Output (MIMO) wireless communication system. At least one beamforming matrix is used for processing transmission signals to terminals included in a terminal set for a multiple access is determined. Minimum power values required for satisfying a minimum transmission rate of the terminals are determined. Whether optimum power values exist is determined using the minimum power values, the beamforming matrix, and a limit transmission power of the base station. When the optimum power values exist, transmission power values for respective terminals are determined in a range meeting the limit transmission power of the base station.

摘要翻译： 一种装置可操作以在分布式多输入多输出（MIMO）无线通信系统中控制基站的功率。 至少一个波束成形矩阵被用于处理传输信号到包括在多路访问的终端机中的终端。 确定满足终端的最小传输速率所需的最小功率值。 使用最小功率值，波束形成矩阵和基站的限制发射功率来确定是否存在最佳功率值。 当存在最佳功率值时，在满足基站的限制发送功率的范围内确定各个终端的发送功率值。

公开(公告)号：US20100261498A1

公开(公告)日：2010-10-14

申请号：US12661759

申请日：2010-03-23

申请人： Jae-Yun Ko ,  Keun-Chul Hwang ,  Seung-Won Kang ,  Soon-Young Yoon ,  Won-Jin Sung ,  Byung-Seok Lee ,  Ji-Won Lee

发明人： Jae-Yun Ko ,  Keun-Chul Hwang ,  Seung-Won Kang ,  Soon-Young Yoon ,  Won-Jin Sung ,  Byung-Seok Lee ,  Ji-Won Lee

IPC分类号： H04B7/00

CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04W52/40

摘要： An apparatus is operable to control power of a base station in a distributed Multiple Input Multiple Output (MIMO) wireless communication system. At least one beamforming matrix is used for processing transmission signals to terminals included in a terminal set for a multiple access is determined. Minimum power values required for satisfying a minimum transmission rate of the terminals are determined. Whether optimum power values exist is determined using the minimum power values, the beamforming matrix, and a limit transmission power of the base station. When the optimum power values exist, transmission power values for respective terminals are determined in a range meeting the limit transmission power of the base station.

摘要翻译： 一种装置可操作用于在分布式多输入多输出（MIMO）无线通信系统中控制基站的功率。 至少一个波束成形矩阵被用于处理传输信号到包括在多路访问的终端机中的终端。 确定满足终端的最小传输速率所需的最小功率值。 使用最小功率值，波束形成矩阵和基站的限制发射功率来确定是否存在最佳功率值。 当存在最佳功率值时，在满足基站的限制发送功率的范围内确定各个终端的发送功率值。

公开(公告)号：US08848628B2

公开(公告)日：2014-09-30

申请号：US12927236

申请日：2010-11-10

申请人： Jae-Yun Ko ,  Sung-Ho Lee ,  Soon-Young Yoon ,  June Moon ,  Chung-Ryul Chang ,  Sung-Woo Park ,  Seung-Won Kang ,  Ho-Joong Kwon

发明人： Jae-Yun Ko ,  Sung-Ho Lee ,  Soon-Young Yoon ,  June Moon ,  Chung-Ryul Chang ,  Sung-Woo Park ,  Seung-Won Kang ,  Ho-Joong Kwon

IPC分类号： H04W4/00

CPC分类号： H04W72/082 ,  H04J11/0053 ,  H04W52/146 ,  H04W52/346

摘要： A method and an apparatus maximize the capacity of a wireless communication network by taking into consideration inter-cell interference coordination. A home cell's capacity sensitivity to interference is calculated. At least one neighbor cell's capacity sensitivity to interference is collected. And at least one UE located in the home cell is scheduled based on the home cell's capacity sensitivity and the neighbor cell's capacity sensitivity. Accordingly, it is possible to achieve power and allocation control to maximize the capacity of the overall network including neighbor cells increase the system capacity in a cellular system in which inter-cell interference is large, and adaptively perform a UE scheduling in real time to changing distribution of UEs because information on a change in the capacity of each cell is shared by periods.

摘要翻译： 一种方法和装置通过考虑小区间干扰协调来使无线通信网络的容量最大化。 计算家庭电池容量对干扰的敏感度。 收集至少一个相邻小区的容量对干扰的敏感度。 并且基于家庭小区的容量灵敏度和相邻小区的容量灵敏度来调度位于家庭小区中的至少一个UE。 因此，可以实现功率和分配控制，以使包括邻居小区在内的整个网络的容量最大化，增加小区间干扰较大的蜂窝系统中的系统容量，并且实时自适应地执行UE调度以改变 因为关于每个小区的容量的变化的信息被周期共享的UE的分配。

公开(公告)号：US20110188388A1

公开(公告)日：2011-08-04

申请号：US12927236

申请日：2010-11-10

申请人： Jae-Yun Ko ,  Sung-Ho Lee ,  Soon-Young Yoon ,  June Moon ,  Chung-Ryul Chang ,  Sung-Woo Park ,  Seung-Won Kang ,  Ho-Joong Kwon

发明人： Jae-Yun Ko ,  Sung-Ho Lee ,  Soon-Young Yoon ,  June Moon ,  Chung-Ryul Chang ,  Sung-Woo Park ,  Seung-Won Kang ,  Ho-Joong Kwon

IPC分类号： H04W24/02

CPC分类号： H04W72/082 ,  H04J11/0053 ,  H04W52/146 ,  H04W52/346

摘要： A method and an apparatus maximize the capacity of a wireless communication network by taking into consideration inter-cell interference coordination. A home cell's capacity sensitivity to interference is calculated. At least one neighbor cell's capacity sensitivity to interference is collected. And at least one UE located in the home cell is scheduled based on the home cell's capacity sensitivity and the neighbor cell's capacity sensitivity. Accordingly, it is possible to achieve power and allocation control to maximize the capacity of the overall network including neighbor cells increase the system capacity in a cellular system in which inter-cell interference is large, and adaptively perform a UE scheduling in real time to changing distribution of UEs because information on a change in the capacity of each cell is shared by periods.

摘要翻译： 一种方法和装置通过考虑小区间干扰协调来使无线通信网络的容量最大化。 计算家庭电池容量对干扰的敏感度。 收集至少一个相邻小区的容量对干扰的敏感度。 并且基于家庭小区的容量灵敏度和相邻小区的容量灵敏度来调度位于家庭小区中的至少一个UE。 因此，可以实现功率和分配控制，以使包括邻居小区在内的整个网络的容量最大化，增加小区间干扰较大的蜂窝系统中的系统容量，并且实时自适应地执行UE调度以改变 因为关于每个小区的容量的变化的信息被周期共享的UE的分配。

公开(公告)号：US08792373B2

公开(公告)日：2014-07-29

申请号：US13196537

申请日：2011-08-02

申请人： Jae-Yun Ko ,  Soon-Young Yoon ,  Cheol Mun ,  Hee-Jin Jung

发明人： Jae-Yun Ko ,  Soon-Young Yoon ,  Cheol Mun ,  Hee-Jin Jung

IPC分类号： H04W72/12

CPC分类号： H04W72/1231 ,  H04W28/22

摘要： A scheduling method in a wireless communication includes receiving a Channel Quality Indicator (CQI) from a plurality of terminals. The method also includes determining an average transmission rate of each terminal based on the CQI by approximating an instantaneous transmission rate distribution to a Gaussian distribution. The method further includes determining a weight of each terminal such that the average transmission rate of each terminal satisfies a target transmission rate. The method also includes selecting a terminal set by applying the determined weight. Thus, it is possible to control the fairness between the terminals and to efficiently control the transmission rate of the terminals according to the required transmission rate and the channel environment of the terminals.

摘要翻译： 无线通信中的调度方法包括从多个终端接收信道质量指示符（CQI）。 该方法还包括通过近似对高斯分布的瞬时传输速率分布来基于CQI来确定每个终端的平均传输速率。 该方法还包括确定每个终端的权重，使得每个终端的平均传输速率满足目标传输速率。 该方法还包括通过应用确定的权重来选择终端机组。 因此，可以控制终端之间的公平性，并且可以根据所需的传输速率和终端的信道环境来有效地控制终端的传输速率。

公开(公告)号：US08483298B2

公开(公告)日：2013-07-09

申请号：US12777503

申请日：2010-05-11

申请人： Jae-Yun Ko ,  Jae-Hyok Lee ,  Soon-Young Yoon

发明人： Jae-Yun Ko ,  Jae-Hyok Lee ,  Soon-Young Yoon

IPC分类号： H04K1/10 ,  H04J11/00

CPC分类号： H04L27/2657 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2675

摘要： An apparatus and a method for acquiring initial synchronization in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM) are provided. The apparatus includes a frame synchronizer for acquiring frame synchronization using a preamble signal, a first offset determiner for determining a first time offset and a first frequency offset based on the frame synchronization, a preamble identifier estimator for estimating a preamble identifier in a receive signal interpolated with the first time offset and the first frequency offset, and a second offset determiner for generating a first preamble signal and a first pilot signal corresponding to the preamble identifier, for derandomizing a preamble signal and a pilot signal, and for determining a second time offset and a second frequency offset. Thus, the initial synchronization acquisition time in a low Signal-to-Noise Ratio (SNR) environment can be reduced.

摘要翻译： 提供了一种用于在基于正交频分复用（OFDM）的无线通信系统中获取初始同步的装置和方法。 该装置包括：帧同步器，用于使用前置信号获取帧同步;第一偏移确定器，用于基于帧同步确定第一时间偏移和第一频率偏移;前导标识符估计器，用于估计接收信号内插的前导标识符 以及第二偏移确定器，用于产生对应于前导码标识符的第一前同步码信号和第一导频信号，用于去前同步码前导信号和导频信号，以及用于确定第二时间偏移量 和第二频率偏移。 因此，可以降低在低信噪比（SNR）环境中的初始同步捕获时间。

公开(公告)号：US20120026910A1

公开(公告)日：2012-02-02

申请号：US13196537

申请日：2011-08-02

申请人： Jae-Yun Ko ,  Soon-Young Yoon ,  Cheol Mun ,  Hee-Jin Jung

发明人： Jae-Yun Ko ,  Soon-Young Yoon ,  Cheol Mun ,  Hee-Jin Jung

IPC分类号： H04L12/26

CPC分类号： H04W72/1231 ,  H04W28/22

摘要： A scheduling method in a wireless communication includes receiving a Channel Quality Indicator (CQI) from a plurality of terminals. The method also includes determining an average transmission rate of each terminal based on the CQI by approximating an instantaneous transmission rate distribution to a Gaussian distribution. The method further includes determining a weight of each terminal such that the average transmission rate of each terminal satisfies a target transmission rate. The method also includes selecting a terminal set by applying the determined weight. Thus, it is possible to control the fairness between the terminals and to efficiently control the transmission rate of the terminals according to the required transmission rate and the channel environment of the terminals.

摘要翻译： 无线通信中的调度方法包括从多个终端接收信道质量指示符（CQI）。 该方法还包括通过近似对高斯分布的瞬时传输速率分布来基于CQI来确定每个终端的平均传输速率。 该方法还包括确定每个终端的权重，使得每个终端的平均传输速率满足目标传输速率。 该方法还包括通过应用确定的权重来选择终端机组。 因此，可以控制终端之间的公平性，并且可以根据所需的传输速率和终端的信道环境来有效地控制终端的传输速率。

公开(公告)号：US09148858B2

公开(公告)日：2015-09-29

申请号：US13179829

申请日：2011-07-11

申请人： Jeong-Ho Park ,  Jae-Yun Ko

发明人： Jeong-Ho Park ,  Jae-Yun Ko

IPC分类号： H04W52/04 ,  H04W52/14 ,  H04W52/10 ,  H04W52/24 ,  H04W52/36 ,  H04W52/50

CPC分类号： H04W52/146 ,  H04W52/10 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243 ,  H04W52/362 ,  H04W52/50

摘要： A method and apparatus for controlling uplink transmission power in a mobile communication system are provided. In the method, an Advanced Mobile Station (AMS) determines uplink transmission power based on a measured path loss, an uplink noise and interference level received from an Advanced Base Station (ABS), a target Signal-to-Noise and Interference Ratio (SINR), and an offset. An initial offset value is determined based on a number of retransmissions of an initial ranging code performed until an initial ranging process is completed, a transmission power unit used for retransmission of the initial ranging code, and a power correction value received from the ABS upon completion of the initial ranging process with the ABS.

摘要翻译： 提供了一种用于在移动通信系统中控制上行链路传输功率的方法和装置。 在该方法中，高级移动站（AMS）基于测量的路径损耗，从高级基站（ABS）接收的上行链路噪声和干扰电平，目标信噪比和干扰比（SINR）来确定上行链路传输功率 ）和偏移量。 基于在完成初始测距处理之前执行的初始测距码的重传次数，用于重传初始测距码的发送功率单元和完成后的ABS接收到的功率校正值，确定初始偏移值 与ABS的初始测距过程。

公开(公告)号：US20110177837A1

公开(公告)日：2011-07-21

申请号：US12927070

申请日：2010-11-05

申请人： Chung-Ryul Chang ,  June Moon ,  Jae-Yun Ko ,  Sung-Ho Lee

发明人： Chung-Ryul Chang ,  June Moon ,  Jae-Yun Ko ,  Sung-Ho Lee

IPC分类号： H04W52/04

CPC分类号： H04W52/243

摘要： An apparatus and method controls transmission power by a Base Station (BS) of a wireless communication system by considering a path loss between the BS and a terminal and interference affecting adjacent cells. A receiver receives information about interference from adjacent BSs and a terminal. A calculator calculates transmission power of the terminal using the information about interference received from the adjacent BSs and the terminal. The information about interference received from the adjacent BSs comprises Noise & Interference (NI) values, and the information about interference received from the terminal includes a path loss value.

摘要翻译： 一种装置和方法通过考虑BS与终端之间的路径损耗以及影响相邻小区的干扰来控制无线通信系统的基站（BS）的发射功率。 接收机接收来自相邻BS和终端的干扰信息。 计算器使用关于从相邻BS和终端接收到的干扰的信息来计算终端的发射功率。 关于从相邻BS接收到的干扰的信息包括噪声和干扰（NI）值，并且关于从终端接收的干扰的信息包括路径损耗值。

公开(公告)号：US08594719B2

公开(公告)日：2013-11-26

申请号：US12927070

申请日：2010-11-05

申请人： Chung-Ryul Chang ,  June Moon ,  Jae-Yun Ko ,  Sung-Ho Lee

发明人： Chung-Ryul Chang ,  June Moon ,  Jae-Yun Ko ,  Sung-Ho Lee

IPC分类号： H04B7/00

CPC分类号： H04W52/243

摘要： An apparatus and method controls transmission power by a Base Station (BS) of a wireless communication system by considering a path loss between the BS and a terminal and interference affecting adjacent cells. A receiver receives information about interference from adjacent BSs and a terminal. A calculator calculates transmission power of the terminal using the information about interference received from the adjacent BSs and the terminal. The information about interference received from the adjacent BSs comprises Noise & Interference (NI) values, and the information about interference received from the terminal includes a path loss value.

摘要翻译： 一种装置和方法通过考虑BS与终端之间的路径损耗以及影响相邻小区的干扰来控制无线通信系统的基站（BS）的发射功率。 接收机接收来自相邻BS和终端的干扰信息。 计算器使用关于从相邻BS和终端接收到的干扰的信息来计算终端的发射功率。 关于从相邻BS接收到的干扰的信息包括噪声和干扰（NI）值，并且关于从终端接收的干扰的信息包括路径损耗值。