公开(公告)号：KR101971464B1

公开(公告)日：2019-04-23

申请号：KR1020120070449

申请日：2012-06-29

Applicant: 삼성전자주식회사 ,  성균관대학교산학협력단

Inventor： 강진환 ,  김상효 ,  김종환 ,  조충기

IPC: H04B7/04 ,  H04B7/24 ,  H04J11/00

公开(公告)号：KR1020140002299A

公开(公告)日：2014-01-08

申请号：KR1020120070449

申请日：2012-06-29

Applicant: 삼성전자주식회사 ,  성균관대학교산학협력단

Inventor： 강진환 ,  김상효 ,  김종환 ,  조충기

IPC: H04B7/04 ,  H04B7/24 ,  H04J11/00

CPC classification number: H04W76/023 ,  H04B7/0689 ,  H04W76/14 ,  H04W72/082 ,  H04B7/24 ,  H04J11/0023

Abstract: The present invention relates to an apparatus and a method for selecting a D2D communication mode according to signal interference, in a method for operating a transmission terminal performing the D2D communication by being linked with a receiving terminal comprising the steps of: checking whether the transmission terminal is affiliated to at least one among groups categorized according to a link priority; receiving from the receiving terminal a check result regarding whether the signal interference is received from at least three links within the affiliated group; and selecting a communication mode for communicating with the receiving terminal according to the signal interference. [Reference numerals] (111) First Tx block; (112) First Rx block; (113) Second Tx block; (114) Second Rx block

Abstract translation: 本发明涉及一种用于通过与接收终端链接来操作执行D2D通信的发送终端的方法，根据信号干扰来选择D2D通信模式的装置和方法包括以下步骤：检查发送终端 隶属于根据链路优先级分类的组中的至少一个; 从接收终端接收关于是否从附属组内的至少三个链路接收到信号干扰的检查结果; 以及根据所述信号干扰选择与所述接收终端进行通信的通信模式。 （111）第一Tx块; （112）第一Rx块; （113）第二Tx块; （114）第二Rx块

公开(公告)号：KR101322819B1

公开(公告)日：2013-10-28

申请号：KR1020120125228

申请日：2012-11-07

Applicant: 성균관대학교산학협력단

Inventor： 김상효 ,  조충기 ,  강진환

IPC: H04B7/04

CPC classification number: H04B7/0617 ,  H04B7/0626 ,  H04B15/00

Abstract: PURPOSE: An interference alignment method for time-varying multiuser MIMO interference channels is provided to sequentially generate beamforming matrices of a terminal by using given dummy beamforming matrices. CONSTITUTION: A second transmission unit receives a first arbitrary dummy beamforming matrix and channel information between a first reception unit and the second transmission unit from the first reception unit and generates a second transmission beamforming matrix (S303). A third transmission unit receives the first arbitrary dummy beamforming matrix and channel information between the first reception unit and the third transmission unit from the first reception unit and generates a third transmission beamforming matrix. A first transmission unit receives a second dummy beamforming matrix and channel information between a second reception unit and the first transmission unit from the second reception unit and generates a first transmission beamforming matrix (307). [Reference numerals] (AA) Start; (BB) End; (S301) First reception unit produces a promised arbitrary dummy beamforming matrix; (S302) Second and third transmission units receive information about a channel from the first reception unit; (S303) Second and third transmission units form a transmission beamforming matrix according to the received information; (S304) Second reception unit receives the channel information from the third transmission unit; (S305) Second reception unit produces a dummy beamforming matrix according to the received information; (S306) First transmission unit receives the channel information from the second reception unit; (S307) First transmission unit produces a transmission beamforming matrix according to the received information; (S308) Each transmission unit normalizes the transmission matrixes; (S309) First and second reception units produce a reception beamforming matrix meeting the dummy matrixes at right angles; (S310) Third reception unit produces a reception beamforming matrix minimizing interference

Abstract translation: 目的：提供用于时变多用户MIMO干扰信道的干扰对准方法，以通过使用给定的虚拟波束形成矩阵来顺序地生成终端的波束形成矩阵。 构成：第二传输单元从第一接收单元接收第一接收单元和第二传输单元之间的第一任意虚拟波束成形矩阵和信道信息，并产生第二传输波束成形矩阵（S303）。 第三发送单元从第一接收单元接收第一接收单元和第三发送单元之间的第一任意虚拟波束成形矩阵和信道信息，并生成第三发送波束形成矩阵。 第一传输单元从第二接收单元接收第二接收单元和第一传输单元之间的第二虚拟波束形成矩阵和信道信息，并产生第一传输波束成形矩阵（307）。 （附图标记）（AA）开始; （BB）结束; （S301）第一接收单元产生承诺的任意伪波束形成矩阵; （S302）第二和第三发送单元从第一接收单元接收关于信道的信息; （S303）第二传输单元和第三传输单元根据接收的信息形成传输波束成形矩阵; （S304）第二接收单元从第三发送单元接收频道信息; （S305）第二接收单元根据接收到的信息生成虚拟波束形成矩阵; （S306）第一发送单元从第二接收单元接收信道信息; （S307）第一发送单元根据接收到的信息生成发送波束成形矩阵; （S308）每个传输单元规范化传输矩阵; （S309）第一接收部和第二接收部产生与虚拟矩阵成直角的接收波束形成矩阵; （S310）第三接收单元产生使干扰最小化的接收波束形成矩阵

公开(公告)号：KR1020140023738A

公开(公告)日：2014-02-27

申请号：KR1020120090104

申请日：2012-08-17

Applicant: 삼성전자주식회사 ,  성균관대학교산학협력단

Inventor： 김상효 ,  임치우 ,  강진환 ,  김경규 ,  김대균 ,  박승훈 ,  조충기

IPC: H04W72/12 ,  H04W24/10

CPC classification number: H04W72/082

Abstract: The present invention relates to a link scheduling method of a transmission node and an interference information reporting method of a reception node in a wireless communication system which directly communicates between the transmission node and the reception node. The link scheduling method of the transmission node according to the present invention includes the steps of: receiving the interference information of one or more reception nodes by one or more transmission nodes from one or more reception nodes; performing link scheduling based on the interference information; and transmitting data according to the link scheduling result. [Reference numerals] (a) Transmission node in which there is data to be transferred: scheduling according to an interference matrix; (AA) Scheduling links in which use the interference matrix; (b) Interference matrix after calculating the scheduling; (BB) Desired signal; (CC) Interference signal; (DD) Scheduled link; (EE) Yielded link; (FF) B_INTF [nth traffic section] =; (GG) Except from a nth traffic section; (HH) Use in the nth traffic section

Abstract translation: 本发明涉及在发送节点和接收节点之间直接通信的无线通信系统中的发送节点的链路调度方法和接收节点的干扰信息报告方法。 根据本发明的传输节点的链路调度方法包括以下步骤：从一个或多个接收节点接收一个或多个传输节点的一个或多个接收节点的干扰信息; 基于干扰信息执行链路调度; 并根据链路调度结果发送数据。 （附图标记）（a）其中存在要传送的数据的传输节点：根据干扰矩阵进行调度; （AA）使用干扰矩阵的调度链路; （b）计算调度后的干扰矩阵; （BB）所需信号; （CC）干扰信号; （DD）预定链接; （EE）产生链接; （FF）B_INTF [第n个流量段] =; （GG）除第n个流量段外; （HH）在第n个流量段使用

公开(公告)号：KR101323378B1

公开(公告)日：2013-10-28

申请号：KR1020120135450

申请日：2012-11-27

Applicant: 성균관대학교산학협력단

Inventor： 김상효 ,  강진환 ,  조충기

IPC: H04B7/04

CPC classification number: H04B7/0417 ,  H04B7/024 ,  H04B7/0617

Abstract: PURPOSE: An apparatus for transmitting transmission rate related information for receiver selection in a multi cell MIMO downlink network and a method thereof, a receiver selection apparatus in the multi cell MIMO downlink network and a method thereof and a system thereof are provided to transmit the transmission rate related information for receiver selection in the multi cell MIMO downlink network which can achieve maximum sum transmission rate by calculation of low complexity only. CONSTITUTION: A receiving part (410) receives a pilot signal from a transmitter. A calculation part (420) calculates approximated sum transmission rate information by assuming a nonlinear receiver on the basis of the received pilot signal. The calculation part calculates the approximated sum transmission rate, by assuming the nonlinear receiver on the basis of the sum of variation matrix of other receivers existing in a currently belonging receiver group and variation matrix of a self-designated signal. A transmission part (430) transmits the approximated sum transmission rate information to the transmitter. [Reference numerals] (410) Receiving part; (420) Calculation part; (430) Transmission part; (440) Communication execution part

Abstract translation: 目的：提供一种用于在多小区MIMO下行链路网络中发送用于接收机选择的传输速率相关信息的装置及其方法，多小区MIMO下行链路网络中的接收机选择装置及其方法及其系统，用于传输传输 用于多小区MIMO下行链路网络中用于接收机选择的速率相关信息，其可以仅通过计算低复杂度来实现最大和传输速率。 构成：接收部分（410）从发射机接收导频信号。 计算部分（420）基于接收到的导频信号，假设非线性接收机来计算近似和传输速率信息。 计算部分通过基于当前归属的接收机组中存在的其他接收机的变化矩阵和自指定信号的变化矩阵的总和来假定非线性接收机来计算近似和传输速率。 发送部（430）将近似总和发送速率信息发送到发送机。 （附图标记）（410）接收部; （420）计算部分; （430）传动部件; （440）通信执行部分

公开(公告)号：KR101233066B1

公开(公告)日：2013-02-13

申请号：KR1020120012551

申请日：2012-02-07

Applicant: 성균관대학교산학협력단

Inventor： 조충기 ,  강진환 ,  김상효

IPC: H04B7/04 ,  H04B15/00

CPC classification number: H04B15/00 ,  H04B7/0413 ,  H04W28/04

Abstract: PURPOSE: A communication device for a network using a distributed interference alignment technique and a distributed interference alignment method are provided to reduce the number of repetitive transmission of channel information for distributed interference alignment without degrading a sum rate by stopping repetitive transmission in a period when a sum rate is optimized. CONSTITUTION: A reception unit(910) receives a signal including channel information from a plurality of transmission devices. A calculation unit(920) forms an interference suppression matrix minimizing the interference of a signal. The calculation unit calculates the formed interference suppression matrix in the signal. A determining unit(930) determines whether the interference alignment of the signal is stopped or not based on interference signal power and sum rate of the signal calculated by the interference suppression matrix. [Reference numerals] (900) Communication device for a network using distributed interference alignment technique; (910) Reception unit; (920) Calculation unit; (930) Decision unit; (940) Transmission unit

Abstract translation: 目的：提供一种使用分布式干扰对准技术和分布式干扰对准方法的网络通信设备，以减少分布式干扰对齐方式的信道信息的重复传输次数，而不会在一段时间内停止重复传输而降低和速率 总和优化。 构成：接收部（910）从多个发送装置接收包含频道信息的信号。 计算单元（920）形成最小化信号干扰的干扰抑制矩阵。 计算单元计算信号中形成的干扰抑制矩阵。 确定单元（930）基于由干扰抑制矩阵计算的信号的干扰信号功率和和速率来确定信号的干扰对准是否停止。 （附图标记）（900）使用分布式干扰对准技术的网络的通信装置; （910）接待单位; （920）计算单位; （930）决策单位; （940）传输单元

公开(公告)号：KR101223259B1

公开(公告)日：2013-01-17

申请号：KR1020110119296

申请日：2011-11-16

Applicant: 성균관대학교산학협력단

Inventor： 조충기 ,  박원석 ,  김상효

IPC: H04L1/18 ,  H04L27/26 ,  H04L27/34

CPC classification number: H04L27/3405 ,  H04L1/1812

Abstract: PURPOSE: An efficient icon rearrangement method for HARQ transmission and a device thereof, packet transmission method, and a method thereof are provided to select icon coordinates which rapidly improves a diversity profit with simple mathematical equation. CONSTITUTION: A standard Gray symbol mapping of an icon coordinate is set up(110). A position of each bit of a symbol changes through LLR value of each bit of each symbol on the basis of icon symbol according to the set-up symbol mapping. An icon rearrangement device designs a Gray mapping of first transmission. An icon coordinate is rearranged(120) by finding the optimal icon coordinate. [Reference numerals] (110) Setting standard Gray symbol mapping of an icon coordinate; (120) Changing the position of each bit of a symbol through an LLR value of each bit of each symbol on the basis of an icon coordinate according to the set-up symbol mapping to find the optimal icon coordinate and rearranging the icon coordinate; (AA) Start; (BB) End

Abstract translation: 目的：提供一种用于HARQ传输的高效图标重排方法及其装置，分组传输方法及其方法，以选择以简单数学方程快速提高分集利益的图标坐标。 构成：设置图标坐标的标准灰色符号映射（110）。 符号的每个位的位置根据图形符号根据设置符号映射而改变每个符号的每个位的每个位的LLR值。 图标重排装置设计第一次传输的灰色映射。 通过找到最佳图标坐标重新排列图标坐标（120）。 （附图标记）（110）设定图标坐标的标准灰色符号映射; （120）根据设置的符号映射，通过基于图标坐标的每个符号的每个位的LLR值来改变符号的每一位的位置，以找到最佳图标坐标并重新排列图标坐标; （AA）开始; （BB）结束