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公开(公告)号：KR1020040043894A
公开(公告)日：2004-05-27
申请号：KR1020020072338
申请日：2002-11-20
Applicant: 한국전자통신연구원
IPC: H04B7/216
Abstract: PURPOSE: An array antenna base station reception system and a method thereof are provided to estimate beamforming weight at a chip level instead of a symbol level, and to share a correlation reverse matrix between fingers, thereby simplifying a hardware structure necessary for estimating the beamforming weight. CONSTITUTION: A multi-channel down-converter(100) converts wireless frequency signals received to each antenna(111) into digital reception signals, and outputs the digital reception signals. A correlated reverse matrix estimator(200) operates a correlated reverse matrix applicable to a beamforming process of all fingers by using chip level data obtained from the digital reception signals. A finger portion(300) shares the correlated reverse matrix as correlating the digital reception signals with a reference signal, estimates correlation vectors by finger, and performs beamforming/despreading processes by consisting of the fingers. A multiplying portion(400) multiplies the correlated reverse matrix by the correlation vectors, operates beamforming weight, and transmits the beamforming weight to the finger portion(300).
Abstract translation: 目的：提供阵列天线基站接收系统及其方法来估计码片级的波束成形权重而不是符号级别，并且共享指状物之间的相关逆矩阵，从而简化估计波束形成权重所需的硬件结构 。 构成：多通道下变换器（100）将接收到每个天线（111）的无线频率信号转换为数字接收信号，并输出数字接收信号。 相关的反向矩阵估计器（200）通过使用从数字接收信号获得的码片级数据来操作适用于所有手指的波束成形处理的相关反向矩阵。 手指部分（300）共享相关联的反向矩阵，使数字接收信号与参考信号相关，通过手指估计相关矢量，并通过手指组成进行波束形成/解扩处理。 乘法部分（400）将相关逆矩阵乘以相关矢量，操作波束成形权重，并将波束成形权重发送到手指部分（300）。
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公开(公告)号：KR1020040031520A
公开(公告)日：2004-04-13
申请号：KR1020020060988
申请日：2002-10-07
Applicant: 한국전자통신연구원
CPC classification number: H04B7/0848
Abstract: PURPOSE: An array antenna system in a wireless communication system is provided to maintain the same power levels of reception signals during a beam forming process of the reception signals, and to use power ratio information of the reception signals when forming transmission beams, thereby magnifying transmission and reception performance. CONSTITUTION: A signal converter(300) amplifies an RF signal through array antennas(310_1-310_n), down-converts an RF to an IF to convert the IF into a digital signal, and outputs the digital signal to a baseband unit(400). The signal converter(300) receives an IF signal from the baseband unit(400), converts the IF signal into an analog signal, up-converts the analog signal to an RF signal, and wirelessly transmits the RF signal. The baseband unit(400) generates beam forming signals having the same power levels by using the signal outputted from the signal converter(300), performs a combining/decoding process, and outputs a final signal to a digital demodulator. The baseband unit(400) modulates a channel-coded signal for an input signal of the digital demodulator, based on power ratios of the beam forming signals, generates transmission beam forming signals, and outputs the transmission beam forming signals to the signal converter(300).
Abstract translation: 目的：提供一种无线通信系统中的阵列天线系统，用于在接收信号的波束形成处理期间维持接收信号的相同功率电平，并且在形成发射波束时使用接收信号的功率比信息，从而放大传输 和接待表演。 构成：信号转换器（300）通过阵列天线（310_1-310_n）放大RF信号，将RF下变频为IF以将IF转换为数字信号，并将数字信号输出到基带单元（400） 。 信号转换器（300）从基带单元（400）接收IF信号，将IF信号转换为模拟信号，将模拟信号上变频为RF信号，并将RF信号无线发送。 基带单元（400）通过使用从信号转换器（300）输出的信号产生具有相同功率电平的波束形成信号，执行组合/解码处理，并将最终信号输出到数字解调器。 基带单元（400）基于波束形成信号的功率比来调制用于数字解调器的输入信号的信道编码信号，产生传输波束形成信号，并将传输波束形成信号输出到信号转换器（300 ）。
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53.发明授权기준신호 발생 장치 및 그 방법과 그를 이용한 칩 레벨 빔형성기 기반의 스마트 안테나 기지국 시스템 및 그의 동작방법 失效기준신호발생장치및그방법과그를이용한벨벨벨형형성기기반의스마트안테나기지국시스템및그의동작방작
公开(公告)号：KR100406529B1
公开(公告)日：2003-11-20
申请号：KR1020010075882
申请日：2001-12-03
Applicant: 한국전자통신연구원
IPC: H04B7/155
Abstract: PURPOSE: A reference signal generation device and a method therefor and a smart antenna base station system based on chip level beam former using the same and an operating method therefor are provided to generate a reference signal according to a channel estimator and a chip level beam former by using a decision-directed mode, thereby increasing system capacity and base station ranges by exactly performing channel estimating and beam forming processes. CONSTITUTION: An RF receiver(102) converts a received signal into a digital baseband signal. A multi path searcher(103) inputs the digital baseband signal to detect multi paths, and estimates delay time for the multi paths. A chip level beam former(105) calculates a chip level beam forming weight vector, and multiplies the vector to an input signal vector of an array antenna(101). A despreader(106) performs despreading processes on the multi paths, and separates a DPDCH(Dedicated Physical Data Channel) from a DPCCH(Dedicated Physical Control Channel). A channel estimator(107) estimates channels up to the array antenna(101). A channel compensator(108) compensates DPDCHs and DPCCHs of each rake finger(104). A rake synthesizer(109) synthesizes the DPDCHs with the DPCCHs. Deciders(DPDCH,DPCCH)(110) decide symbols of the DPDCHs and the DPCCHs. A reference signal generator(111) generates a reference signal.
Abstract translation: 目的：提供一种基准信号发生装置及其方法和基于芯片级波束形成器的智能天线基站系统及其操作方法，用于根据信道估计器和芯片级波束形成器产生参考信号 通过使用决策导向模式，从而通过精确执行信道估计和波束形成过程来增加系统容量和基站范围。 构成：RF接收器（102）将接收到的信号转换成数字基带信号。 多路径搜索器（103）输入数字基带信号以检测多路径，并估计多路径的延迟时间。 芯片级波束成形器（105）计算芯片级波束成形加权矢量，并将该矢量与阵列天线（101）的输入信号矢量相乘。 解扩器（106）对多路径执行解扩处理，并且从DPPCCH（专用物理控制信道）分离DPDCH（专用物理数据信道）。 信道估计器（107）估计直到阵列天线（101）的信道。 信道补偿器（108）补偿每个耙指（104）的DPDCH和DPCCH。 耙式合成器（109）将DPDCH与DPCCH合成。 决定器（DPDCH，DPCCH）（110）决定DPDCH和DPCCH的符号。 参考信号发生器（111）产生参考信号。
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公开(公告)号：KR102197469B1
公开(公告)日：2021-01-04
申请号：KR1020180124044
申请日：2018-10-17
Applicant: 한국전자통신연구원
Abstract: 하향링크경로손실추정을기반으로한 상향링크전력제어방법및 장치가제공된다. 이동단말로부터수신되는정보를기반으로이동단말의하향링크경로손실을추정하고, 추정된이동단말의하향링크경로손실을기반으로상기이동단말에최대로할당가능한누적전력제어값을결정한다. 그리고차동 TPC(Transmit Power Control) 매퍼(mapper)를통해서, 최대로할당가능한누적전력제어값보다작은범위내에서, 이동단말로부터수신되는신호에대한수신파워와타겟파워의차이를기반으로이동단말의상향링크전송파워를제어하기위한전력제어값을결정하고, 결정된전력제어값을이동단말로전송한다.
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公开(公告)号：KR102054415B1
公开(公告)日：2019-12-11
申请号：KR1020170018860
申请日：2017-02-10
Applicant: 한국전자통신연구원
IPC: H04B17/336 , H04B17/345
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Patent Agency Ranking
公开(公告)号：KR101897120B1
公开(公告)日：2018-09-10
申请号：KR1020170103771
申请日：2017-08-16
Applicant: 한국전자통신연구원
Abstract: 소형셀기지국시스템의소형셀알람관리장치는알람진단장치로부터전달된알람유형이신속(Expedited)으로설정된알람을제1 데이터베이스에저장하고, 소형셀기지국관리시스템으로알람사실을전달하는신속이벤트관리부, 상기알람진단장치로부터전달된알람유형이큐(Queued)로설정된알람을제2 데이터베이스에저장하고, 상기소형셀기지국관리시스템으로알람사실을전달하는큐 이벤트관리부, 상기알람진단장치로부터전달된알람유형이로그(Logged)로설정된알람정보를제3 데이터베이스에저장하고, 상기소형셀기지국관리시스템으로로그파일을업로드하는이력이벤트관리부, 그리고상기알람진단장치로부터전달된알람유형이불능(Disabled)으로설정된알람에대해어떤처리도수행하지않는불능이벤트관리부를포함한다.
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公开(公告)号：KR101873552B1
公开(公告)日：2018-07-02
申请号：KR1020150040793
申请日：2015-03-24
Applicant: 한국전자통신연구원
Abstract: 셀간섭제어장치가개시된다. 상기장치는주변셀로부터수신된신호에해당하는빔의제1 인덱스를판단하는주변셀 수신부, 및 UE(User Equipment)로부터수신된신호에해당하는빔의제2 인덱스와상기제1 인덱스를비교하고, 상기비교결과에기초하여상기주변셀과상기 UE 사이에서발생할수 있는간섭(interference) 제어를수행하는간섭관리부를포함할수 있다.
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公开(公告)号：KR101859217B1
公开(公告)日：2018-05-17
申请号：KR1020150055263
申请日：2015-04-20
Applicant: 한국전자통신연구원
IPC: H04L29/08
Abstract: 본발명은 MAC의한 블록에서모두수행하였던 Subframe Block의기능을나누어, 제어평면(Control Plane)을위한 Subframe 기능은 Scheduler에서수행하고, 사용자평면(User Plane)을위한 Subframe 기능만을 MAC의서브프레임블록이수행하는구조를이용하여, 전체적인메시지절차를간소화하고, Scheduler에서하향링크의스케줄링정보를 RLC로전송하여 MAC과 RLC 간의메시지절차를간소화해 MAC의복잡도를줄여서 MAC의서브프레임블록에서는사용자데이터의송수신의기능을주로수행하게함으로써, 많은단말들의사용자데이터를효율적으로처리하여성능을향상시킬수 있는, 소형셀기지국에서사용자단말에하향링크및 상향링크데이터서비스를제공하는방법및 장치에관한것이다.
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公开(公告)号：KR20180046857A
公开(公告)日：2018-05-09
申请号：KR20170103771
申请日：2017-08-16
Applicant: 한국전자통신연구원
Abstract: 소형셀기지국시스템의소형셀알람관리장치는알람진단장치로부터전달된알람유형이신속(Expedited)으로설정된알람을제1 데이터베이스에저장하고, 소형셀기지국관리시스템으로알람사실을전달하는신속이벤트관리부, 상기알람진단장치로부터전달된알람유형이큐(Queued)로설정된알람을제2 데이터베이스에저장하고, 상기소형셀기지국관리시스템으로알람사실을전달하는큐 이벤트관리부, 상기알람진단장치로부터전달된알람유형이로그(Logged)로설정된알람정보를제3 데이터베이스에저장하고, 상기소형셀기지국관리시스템으로로그파일을업로드하는이력이벤트관리부, 그리고상기알람진단장치로부터전달된알람유형이불능(Disabled)으로설정된알람에대해어떤처리도수행하지않는불능이벤트관리부를포함한다.
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公开(公告)号：KR1020170112746A
公开(公告)日：2017-10-12
申请号：KR1020160040287
申请日：2016-04-01
Abstract: 다운링크데이터의달성가능한전송율을증가시키고, 미리지정된타임슬롯에연관되는신호를이용하여효율적으로에너지수확(harvesting)이진행되도록빔포밍벡터집합을생성하는다중안테나프리코딩방법이제공된다. 상기다중안테나프리코딩방법은각각의셀에대응하는신호대간섭및 잡음비중 최소값이최대가되도록하는빔포밍벡터집합을계산하는단계, 수신되는간섭신호를이용하여수확(harvesting)되는에너지의크기가데이터전송을위한파워이상이되도록하는상기빔포밍벡터집합을계산하는단계및 상기빔포밍벡터집합의크기가 1 이하가되도록조절하는단계를포함할수 있다.
Abstract translation: 增加下行链路数据的可实现的数据速率，并且，有使用与指定的时隙预先相关联，产生高效的能量收获（收获）设定为李·吉·亨的波束形成向量的信号提供了一种多天线预编码方法。 多天线预编码方法包括：计算最大化与每个小区对应的信号与干扰和噪声比的最小值的波束形成向量组;使用接收到的干扰信号确定能量收集的大小， 计算设定的波束形成向量的电力可以是异常用于传输和包括控制使得的步骤没有波束形成向量组的一个以上的大小。
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