公开(公告)号：US09148858B2

公开(公告)日：2015-09-29

申请号：US13179829

申请日：2011-07-11

Applicant: Jeong-Ho Park ,  Jae-Yun Ko

Inventor： Jeong-Ho Park ,  Jae-Yun Ko

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

CPC classification number: H04W52/146 ,  H04W52/10 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243 ,  H04W52/362 ,  H04W52/50

Abstract: 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.

Abstract translation: 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：US20120009969A1

公开(公告)日：2012-01-12

申请号：US13179829

申请日：2011-07-11

Applicant: Jeong-Ho PARK ,  Jae-Yun KO

Inventor： Jeong-Ho PARK ,  Jae-Yun KO

IPC: H04W52/04

CPC classification number: H04W52/146 ,  H04W52/10 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243 ,  H04W52/362 ,  H04W52/50

Abstract: 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.

Abstract translation: 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：US20100296594A1

公开(公告)日：2010-11-25

申请号：US12777503

申请日：2010-05-11

Applicant: Jae-Yun KO ,  Jae-Hyok LEE ,  Soon-Young YOON

Inventor： Jae-Yun KO ,  Jae-Hyok LEE ,  Soon-Young YOON

IPC: H04L27/28 ,  H04L27/00

CPC classification number: H04L27/2657 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2675

Abstract: 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.

Abstract translation: 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，并且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：US20100261498A1

公开(公告)日：2010-10-14

申请号：US12661759

申请日：2010-03-23

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

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

IPC: H04B7/00

CPC classification number: H04B7/0617 ,  H04B7/0417 ,  H04W52/40

Abstract: 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.

Abstract translation: 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：US08483298B2

公开(公告)日：2013-07-09

申请号：US12777503

申请日：2010-05-11

Applicant: Jae-Yun Ko ,  Jae-Hyok Lee ,  Soon-Young Yoon

Inventor： Jae-Yun Ko ,  Jae-Hyok Lee ,  Soon-Young Yoon

IPC: H04K1/10 ,  H04J11/00

CPC classification number: H04L27/2657 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2675

Abstract: 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.

Abstract translation: 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：US08340596B2

公开(公告)日：2012-12-25

申请号：US13058698

申请日：2009-08-06

Applicant: Yong Hwan Lee ,  Jae Yun Ko

Inventor： Yong Hwan Lee ,  Jae Yun Ko

IPC: H04B1/02

CPC classification number: H04B7/0691

Abstract: Disclosed are a signal transmission apparatus and method using a eigen antenna technique in a wireless communication system. The signal transmission apparatus according to one embodiment of the present invention relates to a signal transmission apparatus using a eigen antenna technique in a wireless communication system furnished with a plurality (N) of antennae, comprising: an antenna correlation estimate part that estimates correlation information among the antennae based on a signal received in a reverse channel; a group separation part that separates the plurality of antennae into antenna groups corresponding to the number (M) of transmission signals based on the estimated correlation information among the antennae and provides the information on the separated antenna groups; a gain adjustment part that adjusts the gain of each group antenna included in the antenna group based on the separated antenna group information; and a signal transmission part that transmits the pertinent signal via the antenna group for which the gain of the individual group antenna has been adjusted.

Abstract translation: 公开了一种在无线通信系统中使用本征天线技术的信号传输装置和方法。 根据本发明的一个实施例的信号传输装置涉及在具有多个（N）个天线的无线通信系统中使用本征天线技术的信号传输装置，包括：天线相关估计部分，其估计相关信息 基于在反向信道中接收的信号的天线; 基于所述天线中的所估计的相关信息，将所述多个天线分离成对应于所述传输信号的数量（M）的天线组的组分离部分，并提供关于分离的天线组的信息; 增益调整部，其基于分离的天线组信息来调整包括在天线组中的每个组天线的增益; 以及信号发送部，其经由已经调整了各组天线的增益的天线组来发送相关信号。

公开(公告)号：US20110159825A1

公开(公告)日：2011-06-30

申请号：US13058698

申请日：2009-08-06

Applicant: Yong Hwan Lee ,  Jae Yun Ko

Inventor： Yong Hwan Lee ,  Jae Yun Ko

IPC: H04B1/02

CPC classification number: H04B7/0691

Abstract: Disclosed are a signal transmission apparatus and method using a eigen antenna technique in a wireless communication system. The signal transmission apparatus according to one embodiment of the present invention relates to a signal transmission apparatus using a eigen antenna technique in a wireless communication system furnished with a plurality (N) of antennae, comprising: an antenna correlation estimate part that estimates correlation information among the antennae based on a signal received in a reverse channel; a group separation part that separates the plurality of antennae into antenna groups corresponding to the number (M) of transmission signals based on the estimated correlation information among the antennae and provides the information on the separated antenna groups; a gain adjustment part that adjusts the gain of each group antenna included in the antenna group based on the separated antenna group information; and a signal transmission part that transmits the pertinent signal via the antenna group for which the gain of the individual group antenna has been adjusted.

Abstract translation: 公开了一种在无线通信系统中使用本征天线技术的信号传输装置和方法。 根据本发明的一个实施例的信号传输装置涉及在具有多个（N）个天线的无线通信系统中使用本征天线技术的信号传输装置，包括：天线相关估计部分，其估计相关信息 基于在反向信道中接收的信号的天线; 基于所述天线中的所估计的相关信息，将所述多个天线分离成对应于所述传输信号的数量（M）的天线组的组分离部分，并提供关于分离的天线组的信息; 增益调整部，其基于分离的天线组信息来调整包括在天线组中的每个组天线的增益; 以及信号发送部，其经由已经调整了各组天线的增益的天线组来发送相关信号。

公开(公告)号：US08818440B2

公开(公告)日：2014-08-26

申请号：US12661759

申请日：2010-03-23

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

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

IPC: H04B7/00

CPC classification number: H04B7/0617 ,  H04B7/0417 ,  H04W52/40

Abstract: 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.

Abstract translation: 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：US08509052B2

公开(公告)日：2013-08-13

申请号：US12991426

申请日：2009-05-06

Applicant: Yong Hwan Lee ,  Jae Yun Ko ,  Seung Hyeon Yang

Inventor： Yong Hwan Lee ,  Jae Yun Ko ,  Seung Hyeon Yang

IPC: H04J11/00

CPC classification number: H04B7/04 ,  H04B7/0639 ,  H04L5/0023 ,  H04L25/0208 ,  H04L25/0232 ,  H04L25/0242 ,  H04L25/0246 ,  H04L27/2601

Abstract: Provided are a channel information generation apparatus and a method for spatial division multiplexing in a wireless communication system and a data transmission apparatus and a method using generated channel information. The channel information generation apparatus performs spatial division multiplexing in an OFDM-based wireless communication system. The channel information generation apparatus includes a codebook storage unit for storing a predefined codebook, a channel correlation information unit that receives channel information corresponding to each of a plurality of sub-carriers and calculates channel correlation coefficient information between the sub-carriers based on the received channel information, and an index calculation unit that calculates an index of an optimal matrix of matrices stored in the codebook storage unit based on the channel information, the channel correlation coefficient information, and the codebook.

Abstract translation: 提供了一种在无线通信系统中的信道信息生成装置和空分多路复用方法以及使用所生成的信道信息的数据发送装置和方法。 信道信息生成装置在基于OFDM的无线通信系统中进行空分复用。 信道信息生成装置具备：存储预定码本的码本存储部，接收与多个副载波对应的信道信息的信道相关信息部，基于接收到的子载波，计算副载波之间的信道相关系数信息 信道信息，以及索引计算单元，其基于信道信息，信道相关系数信息和码本来计算存储在码本存储单元中的矩阵的最优矩阵的索引。

公开(公告)号：US08848628B2

公开(公告)日：2014-09-30

申请号：US12927236

申请日：2010-11-10

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

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

IPC: H04W4/00

CPC classification number: H04W72/082 ,  H04J11/0053 ,  H04W52/146 ,  H04W52/346

Abstract: 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.

Abstract translation: 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。