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公开(公告)号：KR1020120007696A
公开(公告)日：2012-01-25
申请号：KR1020100068353
申请日：2010-07-15
Applicant: 삼성전자주식회사
Inventor： 한,슈앙펑
CPC classification number: H04W72/082 , H04W72/042 , H04W84/045
Abstract: PURPOSE: An interference mitigation method in a femtocell of a wireless communication system and apparatus thereof are provided to reduce the uplink interference of a terminal which is closed to a femto cell base station. CONSTITUTION: A femto BS(Base Station) receives information which indicates resource allocated for the channel measurement signal from a macro base station(500). The femto base station measures uplink power by sensing channel measurement signal which is transmitted to the macro BS from a terminal(510). The femto BS transmits the identification information list to the macro BS(520). The list is included in an IM(Interference Mitigation) mode request message.
Abstract translation: 目的：提供无线通信系统的毫微微小区中的干扰减轻方法及其装置，以减少对毫微微小区基站关闭的终端的上行干扰。 构成：毫微微BS（基站）接收指示从宏基站（500）分配给信道测量信号的资源的信息。 毫微微基站通过感测从终端发送到宏BS的信道测量信号来测量上行链路功率（510）。 毫微微BS将识别信息列表发送到宏BS（520）。 该列表包含在IM（干扰减轻）模式请求消息中。
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公开(公告)号：KR1020080078193A
公开(公告)日：2008-08-27
申请号：KR1020070017938
申请日：2007-02-22
Applicant: 삼성전자주식회사
CPC classification number: H04L1/20 , H04B7/0443 , H04L1/0618 , Y02D70/444
Abstract: An SER approximation method for an OSTBC in a DWCS is provided to calculate a close approximation value of an optimum SER, and then directly apply the approximation value to performance prediction. An SER approximation method for an OSTBC in a DWCS includes the steps of: setting a plurality of antenna subsets which can be combined from a plurality of distributed antennas; at a power allocation unit(202), selecting an optimum antenna subset having an optimum power allocation weight based on preset power allocation for each of antenna subsets; and at a space-time encoder(204), substituting an SER of an orthogonal space time block code having symbol constellation of a preset modulation scheme by a probability density function of a signal-to-noise ratio, and calculating the SER approximation value of the selected optimum antenna subset.
Abstract translation: 提供了一种用于DWCS中的OSTBC的SER近似方法来计算最佳SER的近似值，然后将近似值直接应用于性能预测。 用于DWCS中的OSTBC的SER近似方法包括以下步骤：设置可以从多个分布式天线组合的多个天线子集; 在功率分配单元（202）处，基于每个天线子集的预设功率分配来选择具有最佳功率分配权重的最佳天线子集; 并且在时空编码器（204）处，用具有信噪比的概率密度函数代替具有预设调制方案的符号星座的正交空间时间块码的SER，并且计算SER近似值 所选择的最佳天线子集。
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3.发明授权
公开(公告)号：KR100842620B1
公开(公告)日：2008-06-30
申请号：KR1020070008095
申请日：2007-01-25
Applicant: 삼성전자주식회사
IPC: H04B7/04
CPC classification number: H04W52/42 , H04W52/20 , H04B7/0443 , H04L1/0625 , H04L27/2646
Abstract: A symbol error rate based transmission power allocation method for an OSTBC in a DWCS(Distributed Wireless Communication System) is provided to offer an adaptive quasi-optimum power allocation scheme in a receiver for an OSTBC in a flat Nakagami fading channel within the DWCS, thereby minimizing an SER of an MQAM(M-Quadrature Amplitude Modulation) and MPSK(M-Phase Shift Keying) symbol. Plural DA(Distributed Antennas)(DA1-DAn) are geographically and randomly distributed and independently connected to a central processing unit(200). A receiver selects a best sub set having the best SER(Symbol Error Rate) performance based on preset power allocation according to combinable plural antenna sub sets from the plural DAs. The central processing unit allocates power by applying an OSTBC(Orthogonal Space Time Block Code) having a unit mean power to the best sub set fed back from the receiver.
Abstract translation: 提供了一种用于DWCS（分布式无线通信系统）中的OSTBC的基于码元错误率的传输功率分配方法，用于在DWCS内的平坦Nakagami衰落信道中的OSTBC的接收机中提供自适应准最优功率分配方案，由此 最小化MQAM（M-正交幅度调制）和MPSK（M相移键控）符号的SER。 多个DA（分布式天线）（DA1-DAn）在地理上和随机分布并独立地连接到中央处理单元（200）。 接收机根据来自多个DA的可组合多个天线子集的预设功率分配，选择具有最佳SER（符号错误率）性能的最佳子集。 中央处理单元通过将具有单位均值功率的OSTBC（正交空时块）代码应用于从接收机反馈的最佳子集来分配功率。
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公开(公告)号：KR1020130046748A
公开(公告)日：2013-05-08
申请号：KR1020110111298
申请日：2011-10-28
Applicant: 삼성전자주식회사
CPC classification number: H04W72/00 , H04B7/2656 , H04W8/005 , H04W72/12 , H04W74/02
Abstract: PURPOSE: A signal transceiver in a local area wireless communication system and a method thereof are provided to transmit and receive a signal by generating a frame for supporting a plurality of scheduling methods. CONSTITUTION: A signal is transmitted to a reception terminal by using a multi-frame(200). The multi-frame includes a discovery area(202), a paging area(204), and a traffic slot area. A signal for enabling a transmission terminal to discover neighboring terminals through the discovery area is transmitted. The paging signal is transmitted through the paging area. A signal for executing scheduling according to a predetermined scheduling method with the reception terminal through the traffic slot area is transmitted and received. [Reference numerals] (202,BB) Discovery; (204,CC) Paging; (AA) Frame; (DD,FF) Pilot; (EE,GG) Traffic
Abstract translation: 目的：提供局域无线通信系统中的信号收发信机及其方法，通过生成支持多种调度方式的帧来发送和接收信号。 构成：通过使用多帧（200）将信号发送到接收终端。 多帧包括发现区域（202），寻呼区域（204）和业务时隙区域。 发送用于使发送终端能够通过发现区域发现相邻终端的信号。 寻呼信号通过寻呼区域传输。 发送和接收用于根据预定的调度方法通过业务时隙区域与接收终端执行调度的信号。 （202，BB）发现; （204，CC）分页; （AA）框架; （DD，FF）飞行员; （EE，GG）交通
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公开(公告)号：KR1020110078200A
公开(公告)日：2011-07-07
申请号：KR1020090134947
申请日：2009-12-30
Applicant: 삼성전자주식회사
IPC: H04B7/04
CPC classification number: H04B7/0482 , H04B7/0617
Abstract: PURPOSE: A PMI(Pre-coding Matrix Index) mediation apparatus in a multiple-base station MIMO(Multiple Input Multiple Output) communications system and method thereof are provided to restrict the PMI by using the PMI that is actually used. CONSTITUTION: A no pre-coding channel is presumed by using a MIMO middle-amble signal(311). The PMI gathering that does not include the PMI of mobile terminal interference is detected(313). A pre-coded channel is detected(315). A first pre-coding matrix that is really used at a major interference base station is detected(317). The PMI that compared the PMI gathering includes multiple PMI with the PMI of the first pre-coding matrix is determined(319).
Abstract translation: 目的：提供多基站MIMO（多输入多输出）通信系统中的PMI（预编码矩阵索引）中介装置及其方法，以通过使用实际使用的PMI来限制PMI。 构成：通过使用MIMO中间信号信号（311）推测无预编码信道。 检测到不包括移动终端干扰的PMI的PMI采集（313）。 检测到预编码信道（315）。 检测到在主要干扰基站上真正使用的第一预编码矩阵（317）。 比较PMI采集的PMI包括多个PMI，第一个预编码矩阵的PMI被确定（319）。
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Patent Agency Ranking
公开(公告)号：KR1020080090918A
公开(公告)日：2008-10-09
申请号：KR1020070034376
申请日：2007-04-06
Applicant: 삼성전자주식회사
CPC classification number: H04W16/02 , H04L5/0007 , H04L5/0037 , H04L5/006 , H04W16/10 , H04W72/0453 , Y02D70/00
Abstract: An apparatus and a method of sub-cell selection to allocate a sub-carrier in an orthogonal frequency division multiplexing access system are provided to obtain the lowest transmission power of the whole system by allocating the part of the sub-carrier to an another mobile terminal in each sub-cell. A process for dividing a whole frequency band into plural sub-carrier band is performed. A process for allocating in order not to be superimposed on the adjacent base station is performed at the allocation of the divided plural sub-carrier band to each base station. A process for dividing the allocated sub-carrier band, and allocating selectively to plural RS(remote station) connected with the base station through optical fiber is performed. A process for measuring each fading value of plural antenna located in same cell, and arranging the measured fading values in the ascending order is performed. A process for allocating in order from the antenna having minimum fading value among the arranged fading values in the ascending order is performed. A process for deciding the selection according to the comparison result among the transmission power value of the selected antenna, the pre-established maximum signal power value and the signal quality value is performed.
Abstract translation: 提供了在正交频分复用接入系统中分配子载波的子小区选择的装置和方法，以通过将该子载波的一部分分配给另一移动终端来获得整个系统的最低发射功率 在每个子单元格中。 执行将整个频带划分成多个子载波频带的处理。 在分割的多个子载波频带到每个基站时执行用于分配以便不叠加在相邻基站上的处理。 执行用于划分所分配的子载波频带并且通过光纤选择性地分配到与基站连接的多个RS（远程站）的处理。 执行用于测量位于相同小区中的多个天线的每个衰落值并按升序排列测量的衰落值的处理。 执行从布置的衰落值中以降序排列的具有最小衰落值的天线的顺序分配的处理。 执行根据所选天线的发送功率值，预先设定的最大信号功率值和信号质量值之间的比较结果来决定选择的处理。
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7.发明授权분산 무선 통신 시스템에서 심볼 에러율의 기반 직교 공간시간 블록 코드 겸 빔 형성을 위한 적응식 전송 파워 할당방법 有权基于符号错误率的功率分配方案，用于组合正交空间时间块编码和分布式无线通信系统中的波束形成
公开(公告)号：KR100842619B1
公开(公告)日：2008-06-30
申请号：KR1020060115851
申请日：2006-11-22
Applicant: 삼성전자주식회사
CPC classification number: H04W52/42 , H04B7/043 , H04B7/0617 , H04B7/0691 , H04L1/0625 , H04L1/0668 , H04W52/04
Abstract: 본 발명은 분산 무선 통신 시스템에서의 직교 공간 시간 블록 코드 겸 빔 형성을 위한 적응식 전송 파워 할당 장치에 있어서, 각각 다수개의 분산 안테나가 무작위로 그룹을 이루며 위치해 있는, 다수개의 지리적으로 분산되어 있는 빔 형성을 위한 서브어레이와; 수신측으로부터 피드백된 서브어레이 각각의 대규모 페이딩에 대한 정보 및 나카가미 페이딩 파라미터를 이용하여, 다수의 서브어레이에서 조합 가능한 서브세트별 미리 설정된 파워 할당 방식을 적용하여 성능을 확인하며, 확인한 성능에 따라 최선의 성능을 가지는 서브세트를 최적의 서브세트로 설정하며, 이에 따른 파워 할당을 수행하는 중앙 처리 유닛을 구비한다.
DA, MIMO, DWCS, OSTBC, 파워, 빔 형성-
公开(公告)号：KR1020110081753A
公开(公告)日：2011-07-14
申请号：KR1020100114491
申请日：2010-11-17
Applicant: 삼성전자주식회사
CPC classification number: Y02D70/00 , H04B7/024 , H04B7/0417 , H04B7/0447 , H04B7/0632 , H04B7/0639 , H04W24/10
Abstract: PURPOSE: A feedback method and device of channel quality information in a multiple antenna is provided to supply to feedback CQI(Channel Quality Information) in a multiple transceiving antenna(MIMO) system. CONSTITUTION: A communication system supports a collaborative multiple input multiple output for processing a multiple base station(112,114,116). A collaborative CQI is measured by using a receiving signal which is combined from neighboring base station. Channel sizes about an individual signals form the neighboring base stations are measured. Feedback information expressing the relative channel sizes about a determined standard feedbacks to a serving base station.
Abstract translation: 目的：提供多天线中信道质量信息的反馈方法和装置，以提供多收发天线（MIMO）系统中的反馈CQI（信道质量信息）。 构成：通信系统支持协作多输入多输出，用于处理多个基站（112,114,116）。 通过使用从相邻基站组合的接收信号来测量协作CQI。 测量关于相邻基站的单个信号的信道大小。 反馈信息表示关于确定的标准反馈给服务基站的相对信道大小。
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公开(公告)号：KR100886549B1
公开(公告)日：2009-03-02
申请号：KR1020070020985
申请日：2007-03-02
CPC classification number: H04L27/2601 , H04L5/0023 , H04L5/0032 , H04L5/0037 , H04L5/0062 , H04L5/023
Abstract: 본 발명은 지리적으로 무작위로 분산되며 다수의 이동단말과 동시에 교신 가능한 분산 안테나를 구비한 분산 무선 통신 시스템에서 안테나-간 간섭 억제를 위한 서브채널(Sub-channel) 할당 방법에 있어서, 상기 이동단말에서 요구하는 데이터 전송률을 만족하며 교신 가능한 분산안테나를 선택 및 접속하는 과정과, 동일 셀 내에서 송신전력이 최대인 분산안테나를 최우선순위로 리큐(Re-queue)하는 과정과, 상기 최우선순위의 해당 분산안테나부터 차례로 서브채널을 할당하는 과정을 포함함을 특징으로 하는 직교 주파수 분할 다중 접속 시스템에서 안테나-간 간섭 억제를 위한 서브채널 할당 방법 및 장치에 관한 것이다.
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公开(公告)号：KR100866188B1
公开(公告)日：2008-10-30
申请号：KR1020070017938
申请日：2007-02-22
Applicant: 삼성전자주식회사
CPC classification number: H04L1/20 , H04B7/0443 , H04L1/0618 , Y02D70/444
Abstract: 본 발명은 지리적으로 무작위로 분산된 다수개의 송신용 분산 안테나(DA: Distributed Antennas)를 구비한 분산 무선 통신 시스템(DWCS: Distributed Wireless Communication System)에서 직교 공간 시간 블록 코드(OSTBC: Orthogonal Space Time Block Code)를 위한 심볼 에러율(SER: Symbol Error Rate)기반 송신 전력 할당 동작에서의 심볼 에러율의 근사화 방법에 있어서, 상기 다수개의 분산 안테나로부터의 조합 가능한 다수의 안테나 서브세트를 설정하는 과정과, 상기 설정한 다수의 안테나 서브세트별로, 미리 설정된 전력 할당에 기초하여 준 최적 전력 할당 가중치 w
g 를 갖는 준 최적 안테나 서브세트 A
g (1≤g≤2
n -1)를 선택하는 과정과, 신호 대 노이즈 비율(SNR: Signal-to-Noise Ratio)의 확률 밀도 함수(PDF: Probability Density Function)를 미리 설정된 변조방식의 심볼 성상도를 갖는 OSTBC의 SER에 대입하여 선택된 준 최적 안테나 서브세트의 SER 근사값을 계산하는 과정을 포함한다.
DA, MIMO, DWCS, OSTBC, SERAbstract translation: 一种用于在配备有随机分布的多传输分布式天线（DA）的DWCS中的正交空间时间块码的基于SER的发射功率分配操作的符号误码率（SER）近似方法。 SER近似的方法包括以下步骤：从多个DA设置多个可组合天线子集; 对于所设置的多个天线子集中的每一个，选择具有基于预定功率分配的准最优功率分配权重wg的准最优天线子集Ag（1 @ g @ 2n-1） 以及通过将具有信号噪声比（SNR）的概率密度函数（PDF））应用于具有预定调制方案的符号星座图的OSTBC SER来计算所选择的准最佳天线子集的SER近似值。 SER近似值的输出可以输出到中央处理器的发射机或时空编码器，以实现最佳的功率传输。
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