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公开(公告)号：KR100800657B1
公开(公告)日：2008-02-01
申请号：KR1020060115086
申请日：2006-11-21
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: H04W52/46 , H04W52/24 , H04W52/26 , H04W52/346 , H04W52/386 , H04W72/0473
Abstract: A power control device in a cellular system using a wireline RS(Relay Station) and a method thereof are provided to apply a mutually collaborative power control method between a BS(Base Station) and RSs, thereby improving fairness as reforming deterioration of an outage probability. An RS and a BS individually schedule packets to be transmitted to MSs(Mobile Stations) of a corresponding coverage(402,404). The BS magnifies a difference between a sum of interference signals and a sum of signals to be transmitted, according to the scheduling results, ensures a minimum data amount of each MS, and calculates a power allocation solution of each MS for satisfying conditions of whether power of each MS is within preset allocable power of the RS/BS(406,408). The RS and the BS conduct subchannel allocation and power allocation according to the power allocation solution which satisfies the condition(410-416).
Abstract translation: 提供使用有线RS（中继站）的蜂窝系统中的功率控制装置及其方法，以在BS（基站）和RS之间应用相互协作的功率控制方法，由此改善公平性，因为中断概率的改变 。 RS和BS单独地调度要发送到相应覆盖的MS（移动站）的分组（402,404）。 BS根据调度结果，放大干扰信号和信号之和之差，确保每个MS的最小数据量，并计算每个MS的功率分配解，以满足功率的条件 每个MS在RS / BS的预设可分配功率内（406,408）。 RS和BS根据满足条件（410-416）的功率分配解决方案进行子信道分配和功率分配。
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公开(公告)号：KR1020070061034A
公开(公告)日：2007-06-13
申请号：KR1020060034704
申请日：2006-04-17
Applicant: 한국전자통신연구원 , 서강대학교산학협력단
IPC: H04N7/20
CPC classification number: H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0038 , H04L2001/0093 , H04N21/2343 , H04N21/2383 , H04N21/2404 , H04N21/4382
Abstract: An apparatus and a method for deciding a transmission format by using a variable frame length, and a decoding method using the method are provided to acquire information on the structure of a frame transmitted independently of a frequency error before PLSC(Physical Layer Signaling Code) demodulation and decoding in a DVB-S2(Digital Video Broadcasting-Satellite version 2) system. A transmission format decision apparatus using a variable frame length includes a frame synchronization acquisition unit(301), a correlation analysis unit(302), and a transmission frame structure determination unit(304). The frame synchronization acquisition unit acquires frame synchronization for a received transmission frame. The correlation analysis unit performs correlation analysis in consideration of a frame length for each frame structure on the received transmission frame. The transmission frame structure determination unit determines the structure of the received transmission frame by using the correlation analyzed by the correlation analysis unit.
Abstract translation: 提供一种通过使用可变帧长度来确定发送格式的装置和方法，以及使用该方法的解码方法，用于获取关于在PLSC（物理层信令码）解调之前独立于频率误差发送的帧的结构的信息 和DVB-S2（数字视频广播卫星版本2）系统中的解码。 使用可变帧长的传输格式决定装置包括帧同步获取单元（301），相关分析单元（302）和传输帧结构确定单元（304）。 帧同步获取单元获取所接收的传输帧的帧同步。 考虑到接收到的传输帧上的每个帧结构的帧长度，相关分析单元执行相关性分析。 传输帧结构确定单元通过使用由相关分析单元分析的相关性来确定接收到的传输帧的结构。
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公开(公告)号：KR101791209B1
公开(公告)日：2017-11-20
申请号：KR1020160082442
申请日：2016-06-30
Applicant: 서강대학교산학협력단 , 주식회사 케이엠더블유
Abstract: 본발명은이동통신망프론트홀시스템에관한것으로서, 디지털유닛은이동통신망프론트홀시스템에있어서, 밀리미터파를이용하여라디오유닛과의통신을수행하는통신부, 및상기라디오유닛과의신호송수신을통해통신방식을제어하는처리부를포함하고, 상기통신방식은, 무선통신여부, 안테나어레이형태, 연결되는라디오유닛의수, 또는 RF 체인의형태중 하나이상을포함하는것을특징으로함으로써, 디지털유닛과라디오유닛이밀리미터파대역의무선구간으로연결되고, 코드북을기반으로한 대규모안테나어레이와다중사용자 MIMO 전송기술을통해하나의디지털유닛당다수의라디오유닛가연결되어프론트홀시스템의성능을개선하는구조를제공할수 있다.
Abstract translation: 移动通信系统前厅系统技术领域本发明涉及一种移动通信网络前厅系统，更具体地，涉及一种移动通信系统前厅系统，其中数字单元包括用于使用毫米波执行与无线电单元的通信的通信单元， 其特征在于，通信方法包括是否执行无线电通信，天线阵列类型，连接的无线电单元的数量或RF链的形式中的至少一个，使得数字单元和无线电单元 基于码本和多用户MIMO传输技术的大型天线阵列可以连接到毫米波段的无线电部分，以通过将每个数字单元连接多个无线电单元来提供用于改善前部大厅系统的性能的结构 。
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公开(公告)号：KR101564462B1
公开(公告)日：2015-10-30
申请号：KR1020070123446
申请日：2007-11-30
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
IPC: H04B7/26
Abstract: 분산안테나(Distributed Antenna) 시스템에서선택적신호처리방법에있어서, 궤환채널을통해채널상태정보값을보고받고, 채널상태정보값을이용하여신호결합전송이필요한지의유무를확인하는과정과, 전송용량의이득에따라신호결합전송이필요한경우둘 이상의송신안테나를통하여협조적으로데이터신호를이동단말로전송하고, 신호결합전송이필요하지않은경우해당송신안테나를이용하여데이터신호를이동단말로단일전송하는과정과, 신호결합전송이필요한경우에전송된신호와, 신호결합전송이필요하지않은경우에전송된신호이외에추가적으로전송이필요한경우일련의과정을반복하여추가적으로신호를전송하는과정을포함하는것을특징으로한다.
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公开(公告)号：KR101448977B1
公开(公告)日：2014-10-13
申请号：KR1020130043057
申请日：2013-04-18
Applicant: 에스케이텔레콤 주식회사 , 서강대학교산학협력단
CPC classification number: H04B7/0617 , H04J11/005 , H04W88/08
Abstract: Disclosed are a base station and an operation method thereof. The base station secures the increase of transmission rate with regard to all terminals located in a cell by changing a beam forming direction according to the load distribution of a cell, when a large-scale array antenna device is used in a base station and a directional beam forming method is applied, and further operates an antenna device by applying a directional beam forming method and a multiple input/output beam forming method, thereby effectively improving the overhead of channel quality measurement and complexity.
Abstract translation: 公开了一种基站及其操作方法。 当基站中使用大规模阵列天线装置时，基站通过根据小区的负载分布改变波束形成方向来确保位于小区中的所有终端的传输速率的增加， 应用波束形成方法，并且通过应用定向波束形成方法和多输入/输出波束形成方法进一步操作天线装置，从而有效地提高了信道质量测量的开销和复杂性。
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Patent Agency Ranking
公开(公告)号：KR101384869B1
公开(公告)日：2014-04-15
申请号：KR1020080036177
申请日：2008-04-18
Applicant: 엘지전자 주식회사 , 서강대학교산학협력단
Abstract: 다중 안테나를 이용한 데이터 복원 방법을 제공한다. 상기 데이터 복원 방법은 복수의 안테나를 통하여 수신 신호를 수신하는 단계 및 채널 행렬을 분해하여 구한 수신 빔포밍 행렬을 이용해 상기 수신 신호를 공간 역다중화하여 간섭 신호를 제거한 간섭제거 추정 신호를 구하는 단계를 포함한다. 공간 역다중화를 이용해 인접 기지국으로부터의 간섭 신호의 영향을 최소화하고, 수신 빔포밍 행렬을 이용해 빔포밍 이득을 얻을 수 있다. 따라서, 셀간 간섭을 줄이고, 수신 성능을 향상시킬 수 있다.
MIMO, SD, ZF, MMSE, 빔포밍Abstract translation: 提供了一种使用多个天线来恢复数据的方法。 所述数据恢复方法包括：获得所述干扰消除以在使用接收波束形成是通过分解步骤中获得矩阵解复用所接收到的信号空间去除干扰信号估计信号的用于通过所述多个天线接收的接收信号的步骤，和一个信道矩阵 的。 空间解复用最小化来自相邻基站的干扰信号的影响，并且波束成形增益可以通过使用接收波束成形矩阵来获得。 因此，可以降低小区间干扰并且可以改善接收性能。
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公开(公告)号：KR101293409B1
公开(公告)日：2013-08-16
申请号：KR1020110096525
申请日：2011-09-23
Applicant: 포항공과대학교 산학협력단 , 서강대학교산학협력단
Abstract: 통신 시스템의 자원을 효율적으로 사용할 수 있는 무선 통신 시스템의 부분 협력 전송 방법이 개시된다. 복수의 송신국을 포함하는 무선 통신 시스템에서 코어망이 각 수신기와 복수의 송신국 각각 사이의 채널 정보를 획득하고, 획득한 채널 정보에 기초하여 각 수신기의 선호 송신국 정보를 생성한 후, 각 수신기의 선호 송신국 정보와 일치하는 협력 송신국 조합에 가중치를 부여하고, 부여된 가중치에 기초하여 부분 협력 전송을 위한 협력 송신국 조합 패턴을 생성한 후, 협력 송신국 조합 패턴에 포함된 복수의 송신국들이 부분 협력 전송을 수행한다. 따라서, 지리적으로 분산된 복수의 송신국들 중 협력 전송에 참여할 송신국들을 전송 효율을 고려하여 부분적으로 구성하여 운용함으로써 네트워크 자원을 효율적으로 사용할 수 있고, 서비스 경계지역에 위치하는 수신기의 전송 성능을 상승시킬 수 있다.
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公开(公告)号：KR1020130032745A
公开(公告)日：2013-04-02
申请号：KR1020110096525
申请日：2011-09-23
Applicant: 포항공과대학교 산학협력단 , 서강대학교산학협력단
CPC classification number: H04B7/0634 , H04B7/026 , H04B7/0617
Abstract: PURPOSE: A partially cooperative transmission method in a wireless communication system is provided to partially compose and manage a transmitting station participating in cooperative transmission by considering transmission efficiency. CONSTITUTION: A core network obtains channel information between each receiver and a plurality of transmitting stations(311). The core network generates preferred transmitting station information of each receiver based on the channel information(313). The core network grants a weighted value to a cooperative transmitting station combination matched with the preferred transmitting station information(353). The core network generates a cooperative transmitting station combination pattern for partially cooperative transmission based on the weighted value(355). Transmitting stations included in the cooperative transmitting station combination pattern perform the partially cooperative transmission(357). [Reference numerals] (311) Calculating average channel power to transmitting stations by each receiver; (313) Determining a main transmitting station based on the average channel power; (331) Generating a cooperative transmitting station index set; (333) Generating a preferred transmitting index set including the main transmitting station; (335) Defining a binary vector of a preferred transmitting station; (351) Generating a cooperative transmitting station combination for M transmitting stations(selecting N cooperative transmitting station combinations); (353) Granting a weighted value by comparing the received preferred transmitting station binary vector for each receiver with the cooperative transmitting station combination; (355) Composing L cooperative transmitting station combination patterns for partial cooperative transmission from the N cooperative transmitting station combinations by using the weighted value of each cooperative transmitting station combination; (357) Performing cooperative transmission by successively using the L cooperative transmitting station combination patterns; (AA) Start; (BB) End;
Abstract translation: 目的：提供一种无线通信系统中的部分协作传输方法，通过考虑传输效率来部分组合和管理参与协作传输的发射台。 构成：核心网络在每个接收机与多个发送站之间获取信道信息（311）。 核心网络基于信道信息生成每个接收机的优选发射台信息（313）。 核心网络向与优选发送站信息匹配的合作发送站组合（353）授予加权值。 核心网络基于加权值生成用于部分协作传输的协作发射台组合模式（355）。 合作发送站组合模式中包含的发送台进行部分协作发送（357）。 （311）计算每个接收机对发射站的平均信道功率; （313）基于平均信道功率确定主发射台; （331）生成协同发射台索引集; （333）生成包括主发送站的优选发送索引集合; （335）定义优选发射台的二进制向量; （351）生成M个发射台的合作发射台组合（选择N个合作发射台组合）; （353）通过将每个接收机的接收到的优选发射台二进制向量与协作发射台组合进行比较来授予加权值; （355）通过使用每个协作发射台组合的加权值，从N个合作发射台组合构成用于部分协作传输的L个合作发射台组合模式; （357）连续使用L协同发射台组合方式进行协同传输; （AA）开始; （BB）结束;
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公开(公告)号：KR1020120072847A
公开(公告)日：2012-07-04
申请号：KR1020100134758
申请日：2010-12-24
Applicant: 포항공과대학교 산학협력단 , 서강대학교산학협력단
CPC classification number: H04B7/024 , H04B7/0617 , H04W52/14 , H04W52/24
Abstract: PURPOSE: A cooperative transmission method of a wireless communication system is provided to maximize transmission efficiency in cellular environment by calculating power control values of one or more micro cell base stations. CONSTITUTION: A wireless communication system creates a reception signal model of terminals(110,210,310,410) respectively located in one or more micro cells. The wireless communication system calculates the SNR(Signal to Noise Ratio) of each terminal based on the created reception signal model. When the calculated SNR requirements are satisfied, the wireless communication system calculates a beam-forming vector of a macro cell BS(Base Station)(100) and power control values of one or more micro cell base stations(200,300,400).
Abstract translation: 目的：提供一种无线通信系统的协作传输方法，通过计算一个或多个微小区基站的功率控制值来最大化蜂窝环境中的传输效率。 构成：无线通信系统创建分别位于一个或多个微小区中的终端（110,210,310,410）的接收信号模型。 无线通信系统基于所创建的接收信号模型来计算每个终端的SNR（信噪比）。 当满足计算的SNR要求时，无线通信系统计算宏小区BS（基站）（100）的波束形成向量和一个或多个微小区基站的功率控制值（200,300,400）。
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公开(公告)号：KR101151195B1
公开(公告)日：2012-06-08
申请号：KR1020080114739
申请日：2008-11-18
Applicant: 한국전자통신연구원 , 서강대학교산학협력단
CPC classification number: H04L27/2656 , H04L7/042 , H04L27/2676
Abstract: 강건한동기획득을위한상관장치및 방법을개시한다. 강건한동기획득을위한상관방법은수신심볼에대한수신심볼위상차를구하는단계와, 상관심볼에대한상관심볼위상차를구하는단계와, 수신심볼위상차와상관심볼위상차를이용하여수신심볼의차등상관값을구하는단계와, 수신심볼위상차를이용하여수신심볼의유클리드거리값을구하는단계와, 차등상관값과유클리드거리값을이용하여수신심볼의합 상관값을구하는단계를포함한다.
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