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公开(公告)号：KR1020080044595A
公开(公告)日：2008-05-21
申请号：KR1020060113619
申请日：2006-11-17
Applicant: 삼성전자주식회사
IPC: H04B7/08
CPC classification number: H04B7/0413 , H04B7/0854 , H04L5/0023 , H04L5/0032 , H04L5/0035 , H04L5/0048 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L27/2613 , H04L27/2647
Abstract: An apparatus and a method for canceling interference in a broadband wireless access system are provided to reduce operation complexity significantly by removing the necessity to estimate a channel of an interference signal, and improve reliability of MIMO(Multiple-Input Multiple-Output) detection by performing the MIMO detection by using an interference-cancelled receiving vector and an interference-cancelled channel matrix. A channel estimator(308-1) estimates a channel coefficient vector for each of plural terminals using the same resource. An interference canceller(310) computes a correlation matrix by performing autocorrelation of a signal where the channel coefficient vector of the terminal is subtracted from a receiving signal of each of specific tones present in the same resource. By using the correlation matrix, the interference canceller performs MMSE(Minimum Mean Square Error) based interference cancellation to compute a receiving vector and a channel matrix where the interference is cancelled. An MIMO detector(312) performs MIMO detection by using the receiving vector and the channel matrix in order to estimate a transmission symbol for each of the plural terminals.
Abstract translation: 提供一种用于消除宽带无线接入系统中的干扰的装置和方法，通过消除估计干扰信号的信道的必要性，显着降低运营复杂度，并通过执行MIMO提高MIMO（多输入多输出）检测的可靠性 通过使用干扰消除接收向量和干扰消除信道矩阵的MIMO检测。 信道估计器（308-1）使用相同的资源估计多个终端中的每一个的信道系数向量。 干扰消除器（310）通过执行从相同资源中存在的每个特定音调的接收信号中减去终端的信道系数向量的信号的自相关来计算相关矩阵。 通过使用相关矩阵，干扰消除器执行基于MMSE（Minimum Mean Square Error，最小均方误差）的干扰消除来计算接收向量和消除干扰的信道矩阵。 MIMO检测器（312）通过使用接收向量和信道矩阵来执行MIMO检测，以估计多个终端中的每一个的发送符号。
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公开(公告)号：KR1020080017196A
公开(公告)日：2008-02-26
申请号：KR1020060079036
申请日：2006-08-21
Applicant: 삼성전자주식회사
CPC classification number: H04L25/067 , H04L27/2602 , H04L27/2647 , H04B1/10 , H04J11/0036 , H04J11/005
Abstract: A method and an apparatus for receiving data in a communication system are provided to minimize a noise influence by precisely estimating the noise influence in a communication system having a multiple cell structure to improve a receiving performance of data. An apparatus for receiving data in a communication system includes a measuring unit(303) receives data from a transmitting unit through a transmission region having a plurality of tiles. The measuring unit measures a noise of a tile among the tiles. A first calculating unit calculates total dispersion of a noise of tiles corresponding to a measured noise, and calculates each dispersion of a tile. A determining unit(307) compares the calculated total dispersion and a first critical value, and compares each dispersion of a tile and a second critical value. A second calculating unit calculates a log likelihood ratio by using a predetermined value corresponding to the compared result. The measuring unit measures a noise of a predetermined tile by measuring intensity of a pilot signal transmitted through the tiles.
Abstract translation: 提供一种用于在通信系统中接收数据的方法和装置，用于通过精确估计具有多小区结构的通信系统中的噪声影响来最小化噪声影响，以提高数据的接收性能。 一种用于在通信系统中接收数据的装置，包括：测量单元（303）通过具有多个瓦片的发送区域从发送单元接收数据。 测量单元测量瓷砖之间的瓷砖噪音。 第一计算单元计算与测得的噪声相对应的瓦片的噪声的总色散，并且计算瓦片的每个色散。 确定单元（307）将所计算的总色散和第一临界值进行比较，并比较瓦片的每个色散和第二临界值。 第二计算单元通过使用与比较结果对应的规定值来计算对数似然比。 测量单元通过测量通过瓦片传输的导频信号的强度来测量预定瓦片的噪声。
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公开(公告)号：KR1020070015996A
公开(公告)日：2007-02-07
申请号：KR1020050070723
申请日：2005-08-02
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04L25/0226 , H04L1/0026 , H04L5/0007 , H04L5/0048 , H04L5/0057 , H04W24/10
Abstract: 본 발명은 이동국이 존재하며, 상기 이동국은 채널 품질 정보 전송 채널을 통해 하향링크 채널 품질을 피드백하는 광대역 무선 접속 통신 시스템에서, 상기 채널 품질 정보 수신 장치에 있어서, 상기 채널 품질 정보 전송 채널은 시간 및 주파수 자원으로 구분되는 복수개의 타일들로 구성되며, 상기 타일들에 매핑된 코드값들의 상관 연산을 수행하는 전력 상관 추정기와, 상기 추정된 전력 상관값들 중 최대 전력 상관값을 가지는 코드값에 해당하는 채널 품질 정보를 검출하는 최대값 검색기와, 미리 설정한 채널 품질 정보 임계치와 상기 검출된 채널 품질 정보를 비교하고, 상기 검출된 채널 품질 정보가 상기 임계치 이상이면 최종 채널 품질 정보로 출력하는 임계치 비교기를 포함함을 특징으로 한다.
타일, 채널 품질 정보, 전력 상관, PUSC, OPUSC-
公开(公告)号：KR101593238B1
公开(公告)日：2016-02-12
申请号：KR1020100005366
申请日：2010-01-20
Applicant: 삼성전자주식회사
CPC classification number: H04W52/243
Abstract: 본발명은무선통신시스템에서송신전력제어장치및 방법에관한것으로, 특히무선통신시스템에서의기지국에서송신전력을제어하기위한장치에있어서, 인접기지국들및 단말로부터간섭에대한정보를수신하는수신부; 및상기인접기지국들및 단말로부터수신된간섭에대한정보를이용하여송신전력을연산하는연산부를포함한다.
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公开(公告)号：KR101368269B1
公开(公告)日：2014-03-10
申请号：KR1020060120403
申请日：2006-12-01
Applicant: 삼성전자주식회사
CPC classification number: Y02D70/44
Abstract: 본 발명은 광대역 무선접속 시스템에서 간섭 제거 장치 및 방법에 관한 것이다. 본 발명에 따른 수신 방법은,복조를 원하는 신호들의 채널행렬( ) 및 간섭신호들의 채널행렬( )을 추정하는 과정과, 상기 와 를 연접하여 채널행렬( )을 구성하는 과정과, 상기 와 상기 를 이용해서 간섭제거 필터의 계수( )를 연산하는 과정과, 상기 계수를 이용해서 수신벡터( )와 채널행렬( )에 대해 간섭 제거를 수행하는 과정을 포함한다.
OFDMA, 간섭제거, ZF, MMSE, 채널행렬Abstract translation: 提供一种用于消除宽带无线接入系统中的干扰的装置和方法，以消除上行链路中相邻小区的干扰，以减少上行链路的工作点，从而传输低功率的上行数据，节省终端的功率。 消除干扰的方法包括以下步骤：配置接收向量（Y），所需信号的信道矩阵（HD）和干扰信号的信道矩阵（301）; 以信道大小（303）的顺序排列干扰信号的信道矩阵; 连接HD和排列的干扰信号的信道矩阵以重新配置整个信道矩阵（HAIC）（305）; 操作重配置的HAIC（307）中的k编干扰信道的度量; 如果度量大于或等于参考值（311），则操作基于ZF（零强制）去除滤波器系数（W）的干扰; 和去除干扰（313）。
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Patent Agency Ranking
公开(公告)号：KR1020130101294A
公开(公告)日：2013-09-13
申请号：KR1020120022322
申请日：2012-03-05
Applicant: 삼성전자주식회사
IPC: H04B7/04
CPC classification number: H04W72/082 , H04B7/024 , H04L1/0026 , H04L1/20 , H04L2001/0093 , H04L25/0224 , H04W72/0406 , H04W72/121 , H04W72/1226
Abstract: PURPOSE: A cooperative communications method and a device thereof are provided to effectively improve the communications performance of edge user equipment (UE). CONSTITUTION: A reception part receives sounding reference signal (SRS) receiving power information of each UE, which is included in a coordinator (710), with respect to each cell of schedulers (715,716) from each scheduler. A control part generates UE classification information, which is about whether the each UE is edge UE or not, based on the received SRS-receiving power information or signal-to-interference-plus-noise ratio (SINR) information estimated from the SRS-receiving power information. The control part generates interference relation information between the each UE and the each cell based on the received SRS-receiving power information or the estimated SINR information. A transmission part transmits the generated UE classification information and interference relation information to each scheduler. [Reference numerals] (720) SRS estimation information management; (722) SRS reception history; (724) Threshold update [SRS statistics using]; (726) UE information update [Edge/Interfering UE]; (728) UE information; (730) UE information management; (734) Edge UE assignment information; (738) Sub-cell specific assignment information; (740) Assignment information-based Scheduling
Abstract translation: 目的：提供协作通信方法及其设备，以有效提高边缘用户设备（UE）的通信性能。 构成：相对于来自每个调度器的调度器（715,716）的每个小区，接收部分接收接收包括在协调器（710）中的每个UE的功率信息的探测参考信号（SRS）。 控制部分基于从SRS接收功率信息估计的接收到的SRS接收功率信息或信号对干扰加噪声比（SINR）信息，生成关于每个UE是否是边缘UE的UE分类信息， 接收电源信息。 控制部分基于接收的SRS接收功率信息或估计的SINR信息，在每个UE和每个小区之间产生干扰关系信息。 发送部将所生成的UE分类信息和干扰关系信息发送给各调度器。 （附图标记）（720）SRS估计信息管理; （722）SRS接收历史; （724）阈值更新[使用SRS统计]; （726）UE信息更新[边缘/干扰UE]; （728）UE信息; （730）UE信息管理; （734）边缘UE分配信息; （738）子小区特定分配信息; （740）分配信息调度
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公开(公告)号：KR1020130090669A
公开(公告)日：2013-08-14
申请号：KR1020120011970
申请日：2012-02-06
Applicant: 삼성전자주식회사
CPC classification number: H04W72/1231 , H04L1/0015 , H04L1/0026 , H04L1/0077 , H04W36/0083
Abstract: PURPOSE: A centralized scheduling method and a device thereof are provided to maximize the throughput of a heterogeneous network by minimizing interference between the cells in the heterogeneous network in which the coverage expansion technology of a small base station. CONSTITUTION: A communication unit connects one or more base stations. A control unit collects channel information between a terminal and the base station connected to the communication unit (406). The control unit determines an interference base station in the terminal by using the collected channel information (416). The control unit controls the base station to select a scheduling terminal by using the interference base station information (418). The control unit controls the interference base station to stop data transmission for the terminal in a scheduling point (414). [Reference numerals] (402) Setting a bias to extend a range of a small base station; (404) Setting a blank pattern of a macro base station; (406) Collecting channel information from all base stations; (408) Selecting serving cells by all terminals; (410) Handing over a terminal which cannot be satisfied with Outage conditions among terminals inside the extended range of the small base station into the macro base station; (412) Sub-frame which is blanked in the macro base station; (414) Stopping a data transfer of all macro base stations; (416) Determining a cell giving the interference relative to each terminal; (418) Selecting a candidate terminal scheduling in a current sub-frame; (420) Controlling the interference between the cells relative to the selected scheduling candidate terminal; (AA) Start
Abstract translation: 目的：提供集中式调度方法及其设备，通过最小化小型基站覆盖扩展技术的异构网络中的小区之间的干扰来最大化异构网络的吞吐量。 构成：通信单元连接一个或多个基站。 控制单元在终端与连接到通信单元的基站之间收集信道信息（406）。 控制单元通过使用收集的频道信息来确定终端中的干扰基站（416）。 控制单元通过使用干扰基站信息来控制基站来选择调度终端（418）。 控制单元控制干扰基站以停止在调度点的终端的数据传输（414）。 （附图标记）（402）设定偏移以扩展小型基站的范围; （404）设置宏基站的空白模式; （406）从所有基站收集信道信息; （408）所有终端选择服务小区; （410）将小型基站的扩展范围内的终端之间的停电状态不能满足的终端切换到宏基站; （412）在宏基站中消隐的子帧; （414）停止所有宏基站的数据传输; （416）确定相对于每个终端产生干扰的小区; （418）在当前子帧中选择候选终端调度; （420）控制所述小区之间相对于所选择的调度候选终端的干扰; （AA）开始
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公开(公告)号：KR1020130036832A
公开(公告)日：2013-04-15
申请号：KR1020110101003
申请日：2011-10-05
Applicant: 삼성전자주식회사
CPC classification number: H04W72/0453 , H04W28/0236 , H04W28/16 , H04W36/04
Abstract: PURPOSE: A resource assignment method in an overlapped wireless network environment and a resource management method are provided to effectively manage and assign resources by considering interference between cells in the overlapped wireless network environment. CONSTITUTION: A macro BS(Base Station) receives an assignment constraint sub-frame pattern list from a communication network equipment management unit(1401). The macro BS determines the number of assignment constraint sub-frame numbers(1403). The macro BS notifies a small BS about a determined assignment constraint sub-frame pattern by determining the assignment constraint sub-frame pattern(1405,1407). The macro BS does not assign wireless resources for a terminal in an assignment constraint sub-frame according to the assignment constraint sub-frame pattern and assigns the wireless resources for the terminal in a normal sub-frame(1409). [Reference numerals] (1401) Obtaining an assignment constraint sub-frame pattern; (1403) Determining the number of assignment constraint sub-frames; (1405) Determining the assignment constraint sub-frame pattern; (1407) Notifying the assignment constraint sub-frame pattern to a base station; (1409) Assigning resources to the other band except for the assignment constraint sub-frame pattern; (AA) Start; (BB) End;
Abstract translation: 目的：提供重叠无线网络环境中的资源分配方法和资源管理方法，通过考虑重叠无线网络环境中的小区之间的干扰，有效地管理和分配资源。 构成：宏BS（基站）从通信网络设备管理单元（1401）接收分配约束子帧模式列表。 宏BS确定分配约束子帧号的数量（1403）。 宏BS通过确定分配约束子帧模式（1405,1407）向小型BS通知所确定的分配约束子帧模式。 宏BS不根据分配约束子帧模式为分配约束子帧中的终端分配无线资源，并在普通子帧（1409）中为终端分配无线资源。 （附图标记）（1401）获得分配约束子帧模式; （1403）确定分配约束子帧的数量; （1405）确定分配约束子帧模式; （1407）向基站通知分配约束子帧模式; （1409）除了分配约束子帧模式之外，向另一个频带分配资源; （AA）开始; （BB）结束;
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公开(公告)号：KR1020110082902A
公开(公告)日：2011-07-20
申请号：KR1020100002839
申请日：2010-01-12
Applicant: 삼성전자주식회사
CPC classification number: H04L27/2671 , H04B17/26 , H04B17/318 , H04B17/327 , H04B17/336 , H04B17/345 , H04L27/2665 , H04L27/2675 , H04L27/2695 , H04W88/08
Abstract: PURPOSE: A method for estimating a carrier to noise ratio in a wireless access system and a base station device thereof are provided to estimate information about a surrounding wireless environment in a wireless access system to which an SON(Self Organized Network) function is applied, thereby effectively performing self configuration. CONSTITUTION: A downlink signal is converted into a digital signal by an A/D converter(300). The digital signal is processed by FFT so that the digital signal is converted into a signal by a tone in the frequency domain. The signal converted into the frequency domain is converted into a frequency response about a preamble sequence by a multiplier(304). The mean value of instantaneous receiving power is calculated by an operation of an average calculating unit(310) by a block. A carrier power estimating unit(316) and a nose power estimating unit(314) estimate a carrier power estimation value and a noise power estimation value respectively.
Abstract translation: 目的：提供一种用于估计无线接入系统中的载噪比的方法及其基站设备，用于估计在应用了SON（自组织网络）功能的无线接入系统中的周围无线环境的信息， 从而有效地执行自配置。 构成：A / D转换器（300）将下行链路信号转换为数字信号。 数字信号由FFT处理，使得数字信号通过频域中的音调转换成信号。 转换成频域的信号通过乘法器被转换成关于前导序列的频率响应（304）。 瞬时接收功率的平均值通过平均运算单元（310）的运算来计算。 载波功率估计单元（316）和鼻功率估计单元（314）分别估计载波功率估计值和噪声功率估计值。
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公开(公告)号：KR101037345B1
公开(公告)日：2011-05-26
申请号：KR1020070090310
申请日：2007-09-06
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04L5/0007 , H04L1/0028 , H04L5/0053 , H04L5/0064 , H04L5/0089 , H04L5/0096 , H04L25/0202
Abstract: 본 발명은 무선통신시스템에서 피드백 채널 운영 장치 및 방법에 관한 것으로서, 피드백 채널 할당에 따른 용량 손실을 이용하여 적어도 하나의 단말들로 공통적으로 할당하기 위한 공통 피드백 채널의 수를 결정하는 과정과, 각각의 단말별로 상기 공통 피드백 채널의 수를 변경하기 위한 피드백 채널 변경 정보를 생성하는 과정을 포함하여 셀 용량의 손실 없이 피드백 채널을 운영할 수 있고, 사용자의 증가에 따라 피드백 오버헤드가 증가하는 것을 방지하며 피드백 채널 할당 정보를 전송하기 위한 제어 신호의 오버헤드를 줄일 수 있는 이점이 있다.
피드백 채널, 용량 손실, 셀 용량, 피드백 오버헤드
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