公开(公告)号：US20110194509A1

公开(公告)日：2011-08-11

申请号：US13020906

申请日：2011-02-04

Applicant: Yong-Hwan Lee ,  Hyung-Sin Kim ,  Seung-Hwan Lee

Inventor： Yong-Hwan Lee ,  Hyung-Sin Kim ,  Seung-Hwan Lee

IPC: H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0073

Abstract: In a wireless communication system, at least one sounding subchannel determining parameter is transmitted from a sounding signal receiving apparatus to a sounding signal transmitting apparatus. A sounding subchannel for the sounding signal transmitting apparatus is allocated according to the sounding subchannel determining parameter. A sounding signal is received from the sounding signal transmitting apparatus over the allocated sounding subchannel. The sounding subchannel determining parameter is determined for allocating a sounding subchannel considering a frequency correlation.

Abstract translation: 在无线通信系统中，将至少一个发声子信道确定参数从探测信号接收装置发送到探测信号发送装置。 根据探测子信道确定参数分配用于探测信号发送装置的探测子信道。 通过分配的探测子信道从探测信号发送装置接收到探测信号。 确定探测子信道确定参数以考虑频率相关性来分配探测子信道。

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：US07797014B2

公开(公告)日：2010-09-14

申请号：US11751272

申请日：2007-05-21

Applicant: Yong-Hwan Lee ,  Jin-Woo Lee

Inventor： Yong-Hwan Lee ,  Jin-Woo Lee

IPC: H04B7/00 ,  H04Q7/20

CPC classification number: H04W52/367 ,  H04W52/146 ,  H04W52/243 ,  H04W52/282 ,  H04W52/283

Abstract: An apparatus and method for uplink (UL) power control in a broadband wireless access (BWA) communication system are provided. In a communication method for a base station (BS), the channel gain, noise power and speed of each MS are determined, and the maximum allowable power of each mobile station (MS) are calculated using the determined channel gain, noise power and speed of each MS. Because the UL power is controlled according to the speed of the MS and the distance from the BS, the method can provide higher system capacity than the conventional power adaptation scheme.

Abstract translation: 提供了一种用于宽带无线接入（BWA）通信系统中的上行（UL）功率控制的装置和方法。 在基站（BS）的通信方法中，确定每个MS的信道增益，噪声功率和速度，并且使用确定的信道增益，噪声功率和速度来计算每个移动台（MS）的最大允许功率 的每个MS。 由于根据MS的速度和与BS的距离来控制UL功率，所以该方法可以提供比常规功率适配方案更高的系统容量。

公开(公告)号：US07376103B2

公开(公告)日：2008-05-20

申请号：US10423781

申请日：2003-04-25

Applicant: Yong-Hwan Lee

Inventor： Yong-Hwan Lee

IPC: H04Q7/00 ,  H04Q7/20 ,  H04J3/16

CPC classification number: H04W36/0055 ,  H04W36/18 ,  Y02D70/00

Abstract: A method for processing a handoff in a mobile communication terminal. If a handoff direction message received from a base station is a hard handoff direction message, the mobile communication terminal transmits an acknowledgement message to the base station in response to the handoff direction message and then performs a hard handoff. If the handoff direction message received from the base station is a soft handoff direction message, the mobile communication terminal performs a soft handoff, incorporates an acknowledgement message into a soft handoff completion message when the soft handoff is completed, and transmits the soft handoff completion message containing the acknowledgement message to the base station.

Abstract translation: 一种在移动通信终端中处理切换的方法。 如果从基站接收到的切换方向消息是硬切换方向消息，则移动通信终端响应于切换方向消息向基站发送确认消息，然后执行硬切换。 如果从基站接收的切换方向消息是软切换方向消息，则当软切换完成时，移动通信终端执行软切换，将确认消息合并到软切换完成消息中，并且发送软越区切换完成消息 包含确认消息给基站。

公开(公告)号：US20080113622A1

公开(公告)日：2008-05-15

申请号：US11940249

申请日：2007-11-14

Applicant: Yong-Hwan LEE ,  Seung-Hwan LEE

Inventor： Yong-Hwan LEE ,  Seung-Hwan LEE

IPC: H04B15/00 ,  H04B17/00

CPC classification number: H04B17/0087 ,  H04B7/12 ,  H04B17/24 ,  H04B17/309

Abstract: A system and method for probing a channel by a base station in a communication system is provided. The channel probing includes performing pre-probing for selecting a subchannel, adjusting a subcarrier distance of a probing signal according to frequency selectivity indicative of frequency-domain channel selectivity based on a time channel correlation of each of a plurality of users and performing main-probing for transmitting the probing signal on the selected subchannel.

Abstract translation: 提供了一种用于在通信系统中由基站探测信道的系统和方法。 信道探测包括执行用于选择子信道的预探测，根据指示频域信道选择性的频率选择性调整探测信号的副载波距离，基于多个用户中的每个用户的时间信道相关性，并执行主要探测 用于在所选择的子信道上发送探测信号。

公开(公告)号：US20070133723A1

公开(公告)日：2007-06-14

申请号：US11636711

申请日：2006-12-11

Applicant: Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

Inventor： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC: H03D1/04 ,  H04B14/04

CPC classification number: H04B3/32

Abstract: The present invention relates to a method and an apparatus for cancellation of crosstalk signals using multi-dimensional coordination and vectored transmission. A method of canceling crosstalk signals in a receiver includes a step of multi-dimensionally decomposing the received signals into a user domain and a time domain, a step of calculating a transposed matrix and a diagonal matrix of a unit matrix from the received signals, a step of decoding the received signals with respect to symbols taking the user domain using the transposed matrix and the diagonal matrix of the unit matrix, and a step of decoding the signal decoded in the user domain with respect to symbols taking the time domain so as to calculate the data vectors from which the crosstalk signals are cancelled. Further, a method of canceling crosstalk signals in a transmitter includes a step of multiplying the data vectors to be transmitted from a pre-distortion matrix so as to calculate transmission signals, a step of multi-dimensionally decomposing the transmission signals into a time domain and a user domain, a step of precoding the transmission signals in the time domain and precoding the transmission signals in the user domain, a step of multiplying the signals precoded in the time domain and the user domain by the pre-distortion matrix so as to calculate second transmission signals, and a step of multiplying the second transmission signals by the unit matrix and transmitting the result to the receiver. According to the present invention, near-end crosstalk (NEXT) and far-end crosstalk (FEXT) can be cancelled, computer work in a central system managing cable lines can be reduced, and cable capacity for data transmission can be increased.

Abstract translation: 本发明涉及使用多维协调和矢量传输来消除串扰信号的方法和装置。 消除接收机中的串扰信号的方法包括将接收到的信号多维分解为用户域和时域的步骤，从接收信号计算单位矩阵的转置矩阵和对角矩阵的步骤， 使用转置的矩阵和单位矩阵的对角矩阵相对于采用用户域的符号对接收到的信号进行解码的步骤，以及对于采用时域的符号在用户域中解码的信号进行解码的步骤，以便 计算消除串扰信号的数据向量。 此外，消除发送机中的串扰信号的方法包括：将从前失真矩阵发送的数据向量相乘以计算发送信号的步骤，将发送信号多维分解为时域， 用户域，在时域中对发送信号进行预编码并对用户域中的发送信号进行预编码的步骤，将在时域中预编码的信号与用户域乘以预失真矩阵的步骤，以计算 第二传输信号，以及将第二传输信号乘以单位矩阵并将结果发送给接收机的步骤。 根据本发明，可以消除近端串扰（NEXT）和远端串扰（FEXT），可以减少管理电缆线路的中央系统的计算机工作，并且可以提高用于数据传输的电缆容量。

公开(公告)号：US20050281189A1

公开(公告)日：2005-12-22

申请号：US11154763

申请日：2005-06-16

Applicant: Yong-Hwan Lee ,  June Moon

Inventor： Yong-Hwan Lee ,  June Moon

IPC: H04B7/216 ,  H04J3/16 ,  H04J3/22 ,  H04J11/00 ,  H04L5/02 ,  H04L27/26 ,  H04Q7/00

CPC classification number: H04L5/023 ,  H04L1/0003 ,  H04L1/1819 ,  H04L5/0044

Abstract: A method for transmitting data in a mobile communication system using an OFDMA scheme. The method includes dividing an entire frequency band of the mobile communication system into a plurality of sub-carrier frequency bands, generating a plurality of segments each of the plurality of segments having a preset number of sub-frequency bands and a preset number of time intervals, and each of the plurality of segments having a frequency domain and a time domain, classifying the plurality of segments into multiple types of segments in consideration of data characteristics, determining combinations of signal transmitting and receiving schemes to be applied to each of the type of segments in consideration of the data characteristics, and selecting one of the multiple types of segments for transmitting data in consideration of the data characteristics when the data is generated for transmission.

Abstract translation: 一种使用OFDMA方案在移动通信系统中发送数据的方法。 该方法包括将移动通信系统的整个频带划分成多个子载波频带，产生多个段，每个段具有预设数量的子频带和预设数量的时间间隔 ，并且所述多个段中的每一个具有频域和时域，考虑到数据特性将所述多个段分类为多种类型的段，确定要应用于所述类型的每个类型的信号发送和接收方案的组合 考虑到数据特性的段，并且当数据被生成用于传输时，考虑到数据特性来选择用于发送数据的多种类型的段之一。

公开(公告)号：US20150036545A1

公开(公告)日：2015-02-05

申请号：US14001033

申请日：2012-01-19

Applicant: Yong-Hwan Lee ,  Hyung Sin Kim ,  Seung Hwan Lee

Inventor： Yong-Hwan Lee ,  Hyung Sin Kim ,  Seung Hwan Lee

IPC: H04L29/12 ,  H04L12/753 ,  H04W40/24

CPC classification number: H04L61/2038 ,  H04L45/02 ,  H04L45/48 ,  H04W40/246 ,  H04W84/18 ,  H04W84/20

Abstract: Disclosed is a self-construction system of a wireless sensor network, and a method for self-construction of a wireless sensor network using the same. Also disclosed is a method for self-construction of a cluster tree structure-based wireless sensor network (WSN). The present invention can connect devices distributed densely in a wide area to a network while maintaining the advantages of a conventional tree-structured network, such as the reduction of time required for network construction, traffic by the exchange of control command messages, and a load for a routing path search, and thus can provide a WSN having an improved self-construction performance.

Abstract translation: 公开了一种无线传感器网络的自建系统，以及使用该无线传感器网络的无线传感器网络的自建构方法。 还公开了一种用于基于簇树结构的无线传感器网络（WSN）的自建构的方法。 本发明可以将在广域上密集分布的设备连接到网络，同时保持常规树状结构网络的优点，例如网络构建所需的时间减少，交换控制命令消息的业务量以及负载 用于路由路径搜索，从而可以提供具有改进的自建构性能的WSN。

公开(公告)号：US08583051B2

公开(公告)日：2013-11-12

申请号：US13057581

申请日：2009-08-04

Applicant: Yong Hwan Lee ,  Seung Hwan Lee

Inventor： Yong Hwan Lee ,  Seung Hwan Lee

IPC: H04B17/00

CPC classification number: H04B17/345

Abstract: The present invention relates to an apparatus for removing interference between neighbor cells in a radio communication system, and to a method for same. The apparatus according to the present invention includes a receiving unit which receives receiving power information and signal-to-noise ratio information of a neighbor cell base station from multiple receiving antennas, a first determination unit for determining the number of major neighbor cell interference signals by using the received receiving power information and the signal-to-noise ratio information, a second determination unit for determining a candidate signal vector of a target signal in accordance with the determined number of major neighbor cell interference signals, the received signal-to-noise ratio, and the number of the multiple receiving antennas, a third determination unit for determining a candidate signal matrix of the major neighbor cell interference signals on the basis of the determined candidate signal vector of the target signal, and an estimation unit for estimating signals transmitted from the target base station or the neighbor base station by applying the determined candidate signal matrix of the major neighbor cell interference signals to the method of maximum likelihood.

Abstract translation: 本发明涉及一种用于消除无线电通信系统中的相邻小区之间的干扰的装置及其方法。 根据本发明的装置包括：接收单元，其从多个接收天线接收相邻小区基站的接收功率信息和信噪比信息;第一确定单元，用于通过以下步骤确定主相邻小区干扰信号的数量： 使用接收到的接收功率信息和信噪比信息，第二确定单元，用于根据所确定的主要相邻小区干扰信号的数量确定目标信号的候选信号矢量，所接收的信号与噪声 比率和多个接收天线的数量，第三确定单元，用于基于所确定的目标信号的候选信号矢量来确定主相邻小区干扰信号的候选信号矩阵;以及估计单元，用于估计发送的信号 从目标基站或相邻基站通过应用 确定主要相邻小区干扰信号的候选信号矩阵为最大似然方法。

公开(公告)号：US20130271306A1

公开(公告)日：2013-10-17

申请号：US13602770

申请日：2012-09-04

Applicant: In Su Jang ,  Seong Hoon Choi ,  Jang Hyun Park ,  Chang Beom Kim ,  Ji Hun Eo ,  Jae Dong Lee ,  Yong Hwan Lee ,  Young Chan Jang

Inventor： In Su Jang ,  Seong Hoon Choi ,  Jang Hyun Park ,  Chang Beom Kim ,  Ji Hun Eo ,  Jae Dong Lee ,  Yong Hwan Lee ,  Young Chan Jang

IPC: H03M1/12

CPC classification number: G06F3/05 ,  H03M1/1205

Abstract: The present invention, which relates to an apparatus for collecting data at multi-points, suggests an apparatus connecting analog blocks obtaining the same channel data in series with each other and connecting analog blocks obtaining different channel data in parallel with each other to collect data. The suggested apparatus includes a channel data collecting group including at least two channel data collecting units having data obtaining modules collecting channel data at different points and connected in series with each other; and a channel data processing unit including the channel data collecting units connected in parallel with each other and controlling each of the data obtaining module so as to allow each of the channel obtaining module to shift the channel data by a predetermined size.

Abstract translation: 涉及多点收集数据的装置的本发明提出了一种将获得相同信道数据的模拟块彼此串联连接的装置，并且将获得不同信道数据的模拟块彼此并联连接以收集数据。 所提出的装置包括：通道数据采集组，包括至少两个通道数据采集单元，具有数据获取模块，其在不同点收集通道数据并串联连接; 以及通道数据处理单元，其包括彼此并联连接的通道数据采集单元，并且控制每个数据获取模块，以便允许每个通道获取模块将通道数据移位预定尺寸。