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公开(公告)号：KR1020160046229A
公开(公告)日：2016-04-28
申请号：KR1020140142035
申请日：2014-10-20
Applicant: 한국전자통신연구원
CPC classification number: H04B7/0452 , H04B7/022 , H04W88/085 , H04B7/0413 , H04B7/2609
Abstract: 기지국은복수의단말로부터전송된신호가셀 내설치된복수의리모트라디오헤드(Remote Radio Head, RRH)에도착한도착시간을획득하고, 설정된기준시간과상기복수의 RRH의도착시간을이용하여상기복수의단말과상기복수의 RRH간도착지연시간을계산하며, 상기복수의단말과상기복수의 RRH간도착지연시간을이용하여상기복수의 RRH 중에서상기상향링크 MU-MIMO의수신에참여할 RRH들을선택한후, 상기복수의단말과상기상향링크 MU-MIMO의수신에참여할 RRH들간도착지연시간을이용하여상기복수의단말의송신시간을조정한다.
Abstract translation: 基站获取从多个终端发送的信号到达安装在小区内的多个远程无线电头（RRH）的到达时间，使用以下方式计算多个终端与多个RRH之间的到达延迟时间 预定的参考时间和多个RRH的到达时间，通过使用多个终端与多个RRH之间的到达延迟时间，选择RRH参与多个RRH中的上行MU-MIMO的接收，并且调整发送 多个终端使用多个终端与RRH之间的到达延迟时间参与接收上行MU-MIMO的时间。
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公开(公告)号：KR1020150094988A
公开(公告)日：2015-08-20
申请号：KR1020140015971
申请日：2014-02-12
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/50 , H04B10/60 , H04L27/26
CPC classification number: H04J11/003 , H04B7/10 , H04L5/0051 , H04L25/03343 , H04L27/261 , H04L27/2626
Abstract: 본 발명에 따른 데이터 송신기는, 복수의 신호 중 주파수 시프트가 필요한 신호에 포함된 데이터 부반송파와, 훈련 시퀀스나 파일럿 부반송파를 역다중화하는 역다중화부; 미리 설정된 주파수를 근거로 상기 역다중화된 데이터 부반송파를 주파수 시프트하는 주파수 시프트부; 상기 역다중화된 훈련 시퀀스나 파일럿 부반송파, 및 상기 주파수 시프트된 데이터 부반송파를 중첩하여 편파 신호를 생성하는 중첩부; 및 상기 복수의 신호 중 주파수 시프트가 필요없는 신호 및 상기 생성된 편파 신호를 각각 전송하는 편파 안테나;를 포함한다.
Abstract translation: 根据本发明，数据发送器包括：解复用器单元，其对导频子载波或训练序列进行解复用，以及包括在需要频移的多个信号之一中的数据子载波; 频移单元，其基于预设频率移位解复用的数据子载波的频率; 与已解复用的导频子载波或训练序列重叠的重叠单元，以及具有移位频率的数据子载波以产生极化信号; 以及分别发送不需要频移的信号之一和产生的极化信号的极化天线。
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公开(公告)号：KR1020150057934A
公开(公告)日：2015-05-28
申请号：KR1020140032467
申请日：2014-03-20
Applicant: 한국전자통신연구원
CPC classification number: H04L27/18
Abstract: 본발명에따른다중스트림전송장치는, 셋이상의입력스트림들에대한비 직교(non-orthogonal) 편파정보를생성하는편파제어부, 비직교편파정보에기초하여셋 이상의입력스트림들을기저대역에서편파시켜수직및 수평편파성분으로생성하는편파생성부, 및복수의수직및 수평편파성분들을이중편파안테나를통하여전송하는편파송신부를포함한다.
Abstract translation: 根据本发明的用于发送多个流的装置包括：偏振控制单元，用于为三个或更多个输入流生成非正交偏振信息; 极化产生单元，用于基于所述非正交偏振信息在基带处偏振所述三个或更多个输入流，以产生垂直和水平偏振分量; 以及经由双极化天线透射多个垂直和水平极化分量的偏振透射单元。
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公开(公告)号：KR1020140039991A
公开(公告)日：2014-04-02
申请号：KR1020130106509
申请日：2013-09-05
Applicant: 한국전자통신연구원
CPC classification number: H04B7/2609 , H04B7/024 , H04W88/085
Abstract: A detachable base station is disclosed. The detachable base station according to an embodiment of the present invention includes: a plurality of digital units (DU) in accordance with a particular wireless communications system installed on a central office side; a plurality of radio units (RU) in accordance with a particular wireless communications system installed on a subscriber side; and a cloud base station switch enabling a connection between the DU and the RU to be dynamically changed. [Reference numerals] (142) Motion control unit
Abstract translation: 公开了一种可拆卸的基站。 根据本发明实施例的可拆卸基站包括：根据安装在中心局侧的特定无线通信系统的多个数字单元（DU）; 根据安装在用户侧的特定无线通信系统的多个无线电单元（RU）; 并且使得能够动态地改变DU和RU之间的连接的云基站交换机。 （附图标记）（142）运动控制单元
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45.发明公开
公开(公告)号：KR1020130020545A
公开(公告)日：2013-02-27
申请号：KR1020120066486
申请日：2012-06-21
Applicant: 한국전자통신연구원
IPC: H04B7/04
Abstract: PURPOSE: A communication path control device between a digital unit and a radio frequency unit and a method thereof are provided to flexibly transmit and receive data between the digital unit and the radio frequency unit. CONSTITUTION: A first transceiver(600) receives a first signal from a first digital unit. The first signal includes a first identifier indicating a purpose radio frequency unit. A path selecting unit(620) selects a first path of the purpose radio frequency unit based on the first identifier. A second transceiver(640) transmits the first signal to the selected first path. The first identifier indicates one or more purpose antennas. [Reference numerals] (60) Path control unit; (600) First transceiver; (620) Path selecting unit; (640) Second transceiver; (AA,BB,CC) RF unit; (DD) First signal; (EE) Second signal
Abstract translation: 目的：提供数字单元和射频单元之间的通信路径控制装置及其方法，以在数字单元和射频单元之间灵活地发送和接收数据。 构成：第一收发器（600）从第一数字单元接收第一信号。 第一信号包括指示用途射频单元的第一标识符。 路径选择单元（620）基于第一标识符选择目的射频单元的第一路径。 第二收发器（640）将第一信号发送到所选择的第一路径。 第一标识符表示一个或多个用途天线。 （参考号）（60）路径控制单元; （600）第一收发器; （620）路径选择单元; （640）第二收发器; （AA，BB，CC）RF单元; （DD）第一信号; （EE）第二信号
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Patent Agency Ranking
公开(公告)号：KR1020130018505A
公开(公告)日：2013-02-25
申请号：KR1020120069742
申请日：2012-06-28
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A method for simultaneously performing transmission and reception in the same frequency band capable of increasing frequency use efficiency and an apparatus thereof are provided to utilize an electromagnetic field polarization, thereby simultaneously performing transmission and reception in the same frequency band. CONSTITUTION: A second communications device(150) generates a single polarization using a dual polarization transmission antenna. The second communications device transmits a signal to a first communications device(100) (S100). The transmitted signal of the second communications device passing through a radio channel is received by the dual polarization reception antenna of the first communications device. The first communications device performs polarization filtering by tracking the principal axis of the polarization of the signal(S105). The first communications device generates a polarization meeting at completely right angle with the principal axis of a tracked reception polarization using the dual polarization transmission antenna(S110). The second communications device performs adaptive polarization tracking and polarization filtering using the dual polarization filtering reception antenna(S115). [Reference numerals] (100) First communications device; (150) Second communications device; (S100) Single polarization transmission; (S105,S115) Adaptive polarization tracking & polarization filtering; (S110) Polarization transmission perpendicular to the tracked polarization
Abstract translation: 目的：提供一种在能够提高频率使用效率的同一频带中同时进行发送和接收的方法及其装置，以利用电磁场极化，从而同时在相同频带中执行发送和接收。 构成：第二通信设备（150）使用双极化发射天线产生单极化。 第二通信设备向第一通信设备（100）发送信号（S100）。 通过无线电信道的第二通信设备的发送信号由第一通信设备的双极化接收天线接收。 第一通信设备通过跟踪信号的偏振主轴进行偏振滤波（S105）。 第一通信设备使用双极化发射天线产生与所跟踪的接收偏振的主轴完全直角的偏振会议（S110）。 第二通信装置使用双偏振滤波接收天线执行自适应偏振跟踪和偏振滤波（S115）。 （附图标记）（100）第一通信装置; （150）第二通信设备; （S100）单极化透射; （S105，S115）自适应偏振跟踪和偏振滤波; （S110）垂直于跟踪极化的极化传输
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公开(公告)号：KR1020110008557A
公开(公告)日：2011-01-27
申请号：KR1020090065957
申请日：2009-07-20
Applicant: 한국전자통신연구원
CPC classification number: H04W56/0025
Abstract: PURPOSE: An RF(Radio Frequency) synchronizing method and a method thereof are provided to output a synchronized signal according to the set rate by establishing the uplink and downlink rate. CONSTITUTION: A wireless repeater establishes an initial ratio of the uplink section and downlink section using the usage of the length of the estimated DL signal(S202). Based on in the initial ratio, a wireless repeater senses the upward link signal. The wireless repeater detects the initial ranging signal from the uplink signal(S203). Based on in the initial ranging signal, the wireless repeater resets the rate of the uplink period and downlink section(S208).
Abstract translation: 目的：提供RF（射频）同步方法及其方法，通过建立上行链路和下行速率，根据设定速率输出同步信号。 构成：无线中继器使用估计的DL信号的长度的使用来建立上行链路部分和下行链路部分的初始比（S202）。 基于初始比率，无线中继器感测到上行链路信号。 无线中继器从上行链路信号检测初始测距信号（S203）。 基于初始测距信号，无线中继器重置上行链路周期和下行链路的速率（S208）。
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公开(公告)号：KR100926566B1
公开(公告)日：2009-11-12
申请号：KR1020070126234
申请日：2007-12-06
CPC classification number: H04L25/067 , H04L25/03006 , H04L2025/03426
Abstract: 본 발명은 연판정값 산출 방법 및 송신 신호 검출 방법에 관한 것이다.
본 발명은 수신된 신호에 기초해 채널을 추정하고, 복수의 데이터 스트림을 재정렬한다. 그리고, 재정렬된 데이터 스트림을 이용하여 복수의 후보 벡터를 선택하고, 각 후보 벡터에 대응하는 메트릭을 산출한다. 그리고, 각 후보 벡터 별로 산출된 메트릭을 이용하여 임계치를 계산하고, 각 후보 벡터에 대응하는 메트릭 및 임계치를 이용하여 송신 신호의 각 비트에 대한 연판정값을 산출한다.
연판정값, 다중송수신, MIMO, 공간 다중화, 메트릭, 로그우도비-
公开(公告)号：KR1020090062715A
公开(公告)日：2009-06-17
申请号：KR1020070130133
申请日：2007-12-13
CPC classification number: G06F11/26
Abstract: A device for testing a modem of a wireless communication system and a method therefor are provided to test the modem which transmits/receives a plurality of signals corresponding to each wireless channel. A signal processing unit(410) controls the power of the first transmission signal. A transmission memory(420) and a reception memory(430) receive and temporarily stores the first transmission signal from the signal processing unit. According to a control signal, a wireless signal processing unit(440) receives or transmits the second received signal. A channel is formed by a plurality of antennas which the mobile station and base station include.
Abstract translation: 提供了用于测试无线通信系统的调制解调器的装置及其方法，用于测试发送/接收与每个无线信道相对应的多个信号的调制解调器。 信号处理单元（410）控制第一发送信号的功率。 发送存储器（420）和接收存储器（430）接收并临时存储来自信号处理单元的第一发送信号。 根据控制信号，无线信号处理单元（440）接收或发送第二接收信号。 信道由移动站和基站所包含的多个天线形成。
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公开(公告)号：KR100874004B1
公开(公告)日：2008-12-17
申请号：KR1020060123915
申请日：2006-12-07
CPC classification number: H04L25/03242 , H04L1/0631
Abstract: The present invention relates to a method of detecting a space-time code in a mobile communication system. When detecting a space-time code B for a plurality of transmitting antennas, an ML (maximum likelihood) metric, which is generally calculated by using a specific structure of a matrix B, is defined as a new ML metric by reducing a variable of the ML metric. Two dependent sphere decoding processes are performed and an intersection of the decoding results is calculated, and a signal is detected from the ML metric. Therefore, since detection of the space-time code B for the plurality of transmitting antennas is performed by using the newly defined ML metric, an amount of matrix calculated can be reduced, and a calculation amount can be reduced by performing the two dependent sphere decoding processes. Further, since a detection order of symbols is changed according to a channel situation, it is possible to improve the performance of the system.
Abstract translation: 本发明涉及一种在移动通信系统中检测空时码的方法。 当检测多个发射天线的时空码B时，通常通过使用矩阵B的特定结构计算的ML（最大似然）度量被定义为新的ML度量， ML度量。 执行两个相关球形解码过程，并计算解码结果的交集，并从ML度量中检测信号。 因此，由于通过使用新定义的ML度量来执行对于多个发送天线的空时码B的检测，所以可以减少计算的矩阵量，并且可以通过执行两个相关球解码来减少计算量 流程。 此外，由于符号的检测顺序根据信道状况而改变，所以可以提高系统的性能。
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