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公开(公告)号：KR1020090003000A
公开(公告)日：2009-01-09
申请号：KR1020070067479
申请日：2007-07-05
Applicant: 삼성전자주식회사
CPC classification number: H04W52/42 , H04L25/0206 , H04L25/03343 , H04B7/0456
Abstract: An apparatus and a method for interference cancellation in a multi-antenna system are provided to prevent the interference between users or antennas using precoding and dirty paper coding. A strip code controller(300) generates a strip code matrix to maximize the diversity gain. According to the transmission power about each RX-antenna which the strip code controller is determined on the power control unit(320), each element of the strip code matrices can be renewed. According to the signal to Interference about each RX-antenna which the user sorting unit(310) is provided from the strip code controller and noise ratio or the total sum capacity, RX-antennas providing service are arranged. The power control unit uses the signal to Interference of the RX-antennas which it is provided from the strip code controller and noise ratio or the total sum capacity.
Abstract translation: 提供了一种用于多天线系统中的干扰消除的装置和方法，以使用预编码和脏纸编码来防止用户或天线之间的干扰。 条形码控制器（300）生成条形码矩阵以最大化分集增益。 根据在功率控制单元（320）上确定条形码控制器的每个RX天线的发射功率，可以更新条形码矩阵的每个元素。 根据从条形码控制器提供用户分拣单元（310）的每个RX天线的信号，以及噪声比或总和容量，设置提供RX的天线服务。 功率控制单元使用从条形码控制器提供的RX天线的干扰信号和噪声比或总和容量。
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公开(公告)号：KR1020080113946A
公开(公告)日：2008-12-31
申请号：KR1020070063005
申请日：2007-06-26
CPC classification number: H04L25/03343 , H04B7/068 , H04L1/0606 , H04L1/0668 , H04L27/2647 , H04L2025/03426
Abstract: An interference removing apparatus and a method thereof in a wireless telecommunications system are provided to remove interference without the degradation of the bandwidth efficiency by designing t/k code rate based on error probability in a wireless communication system. A symbol having the code rate of t/k based on counterpart error probability is confirmed. The signal for transmitting by using a symbol is encoded(309). The symbol is transmitted to a reception terminal through at least one antenna(311). The code rate of t/k is designed so that counterpart error probability be minimized for removing interference on the reception terminal.
Abstract translation: 提供了一种无线电信系统中的干扰去除装置及其方法，用于通过在无线通信系统中基于错误概率设计t / k码率来消除干扰而不降低带宽效率。 确认了基于对应误差概率的码率为t / k的符号。 用符号进行发送的信号被编码（309）。 该符号通过至少一个天线发送到接收终端（311）。 t / k的码率被设计成使对应的误差概率被最小化以消除对接收终端的干扰。
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公开(公告)号：KR1020080084456A
公开(公告)日：2008-09-19
申请号：KR1020070026228
申请日：2007-03-16
Applicant: 삼성전자주식회사
CPC classification number: H04B7/0417 , H04L1/0006 , H04L1/0625 , H04L1/1812 , H04L1/1825
Abstract: An apparatus and a method for transmitting/receiving a signal in a MIMO(Multiple Input Multiple Output) mobile communication system are provided to control a MIMO scheme adaptively in consideration of initial transmission and retransmission when the MIMO mobile communication system uses an HARQ(Hybrid Automatic Repeat reQuest) scheme. A controller(123) determines an HARQ scheme to be used for a transmission signal, and determines a MIMO scheme to be used for the transmission signal correspondingly to the determined HARQ scheme. An encoder encodes the transmission signal according to the determined HARQ scheme. A mapper(115) maps a signal output from the encoder according to the determined MIMO scheme. A transmitter(119) transmits a signal output from the mapper. If the determined HARQ scheme is an IR(Incremental Redundancy) scheme, the controller determines the MIMO scheme to be an SM(Spatial Multiplexing) scheme. If the determined HARQ scheme is a CC(Chase Combining) scheme, the controller determines the MIMO scheme to be an STTD(Space Time Transmit Diversity) scheme.
Abstract translation: 提供了一种用于在MIMO（多输入多输出）移动通信系统中发送/接收信号的装置和方法，用于当MIMO移动通信系统使用HARQ（混合自动）时，考虑到初始传输和重传来自适应地控制MIMO方案 重复请求）方案。 控制器（123）确定要用于发送信号的HARQ方案，并且根据确定的HARQ方案确定要用于发送信号的MIMO方案。 编码器根据确定的HARQ方案对传输信号进行编码。 映射器（115）根据确定的MIMO方案映射从编码器输出的信号。 发送器（119）发送从映射器输出的信号。 如果确定的HARQ方案是IR（增量冗余）方案，则控制器将MIMO方案确定为SM（空间复用）方案。 如果确定的HARQ方案是CC（Chase Combining）方案，则控制器将MIMO方案确定为STTD（空时传输分集）方案。
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公开(公告)号：KR1020080065343A
公开(公告)日：2008-07-14
申请号：KR1020070002341
申请日：2007-01-09
Applicant: 삼성전자주식회사 , 뉴저지 인스티튜트 오브 테크놀로지
CPC classification number: H04W52/46 , H04B7/026 , H04B7/0626 , H04W52/241 , H04B7/0634 , H04B7/0665
Abstract: An apparatus and a method for performing the cooperation transmission in a multiple antenna relay type wireless communication system are provided to optimize the covariance matrix and relay matrix relating to a transmission end and a relay device. An encoder(201) performs the channel encoding of the offered information bit stream by a corresponding manner. A modulator(203) modulates the encoded bit stream and outputs the complex symbol. A multiple antenna signal processor(205) generates the signal to be transmitted to each stream according to the corresponding multiple antenna communication manner. An RF(Radio Frequency) transmission member(207) converts the signal from the multiple antenna signal processor into the RF bandwidth signal and transmits the converted signal through an antenna. A feedback information confirmation member(209) confirms the feedback information received through a feedback channel from the receiving end and offers the feedback information to the multiple antenna signal processor.
Abstract translation: 提供了一种用于在多天线中继型无线通信系统中执行协作传输的装置和方法，用于优化与发送端和中继装置相关的协方差矩阵和中继矩阵。 编码器（201）通过相应的方式执行提供的信息比特流的信道编码。 调制器（203）调制编码比特流并输出复合符号。 多天线信号处理器（205）根据相应的多天线通信方式产生要发送到每个流的信号。 射频（射频）传输构件（207）将来自多天线信号处理器的信号转换成RF带宽信号，并通过天线发送转换后的信号。 反馈信息确认部件（209）通过来自接收端的反馈信道确认反馈信息，并向多天线信号处理器提供反馈信息。
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公开(公告)号：KR100842536B1
公开(公告)日：2008-07-01
申请号：KR1020040051077
申请日：2004-07-01
IPC: H04J11/00
CPC classification number: H04L27/2602
Abstract: 본 발명은 직교주파수분할다중화(OFDM: Orthogonal Frequency Division Multiplexing) 방식의 통신 시스템에서 동기 획득 방법 및 시스템에 관한 것이다. 이를 위해 본 발명은, 단말과, 상기 단말과 무선 접속이 가능한 다수의 접속 라우터(access router)들을 포함하는 통신 시스템에서, 상기 단말과 적어도 둘 이상의 접속 라우터들 간의 동기 획득 방법에 있어서, 상기 적어도 둘 이상의 접속 라우터들이 상기 단말로 전송할 동일 심볼의 전송 횟수를 각각 결정하고, 상기 결정한 각 동일 심벌의 전송 횟수에 상응하여 상기 각 동일 심벌을 상기 단말로 전송하는 과정과, 상기 단말이 상기 접속 라우터들로부터 수신되는 각 동일 심벌들을 이용하여 상기 접속 라우터들과 동기화를 수행하여 동기를 획득하는 과정을 포함한다.
무선 접속 라우터, 동기화, 모바일 IP, 다중 연결-
Patent Agency Ranking
公开(公告)号：KR100840608B1
公开(公告)日：2008-06-23
申请号：KR1020020044461
申请日：2002-07-27
Applicant: 삼성전자주식회사
IPC: H04J1/00
CPC classification number: H04L5/026 , H04L2027/0026 , H04L2027/0065 , H04L2027/0079
Abstract: 인터리브된 주파수 분할 다중 접속을 위한 주파수 오프셋 보상 방법 및 장치가 개시된다. 인터리브된 주파수 분할 다중 접속에서 u(1≤u ≤U)(여기서, U는 사용자의 수를 나타낸다.)번째 사용자에 대한 송신 신호와 수신 신호간의 주파수 오프셋을 보상하는 이 방법은, 초기 상태에서 수신 신호로 결정되고 정상 상태에서 궤환 신호로 결정되는 선택 신호로부터 주파수 오프셋을 추정하는 단계, u번째 사용자에 대한 수신 신호를 i(1≤i≤U-1)번째 다른 사용자들에 대한 수신 신호들이 간섭한 정도를 나타내는 간섭량을 추정하는 단계와, 수신 신호로부터 추정된 간섭량을 감산하고, 감산된 결과를 궤환 신호로서 결정하는 단계와, 전술한 단계들이 소정 횟수만큼 반복하여 수행되었는가를 판단하고, 소정 횟수만큼 반복하여 수행되지 않았다고 판단되면 상기 주파수 오프셋을 추정하는 단계로 진행하는 단계 및 소정 횟수만큼 반복하여 수행되었다고 판단되면, 최종적으로 결정된 궤환 신호와 추정된 주파수 오프셋을 이용하여 송신 신호를 추정하는 단계를 구비하는 것을 특징으로 한다. 그러므로, 주파수 오프셋으로 인한 수신 신호의 진폭 및 위상의 왜곡들 뿐만 아니라 사용자들간의 간섭을 기저 대역에서 제거할 수 있기 때문에 회로 설계 및 구현 비용을 저렴하게 하고, 채널의 특성을 추정하기 전에 주파수 오프셋을 보상할 수 있는 효과를 갖는다
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公开(公告)号：KR1020080048293A
公开(公告)日：2008-06-02
申请号：KR1020060118500
申请日：2006-11-28
Applicant: 삼성전자주식회사
Abstract: A method and an apparatus for providing a service in a communication system are provided to supply an optimum service for providing an optimum transmission rate and minimizing price, delay and bit error rate to a user, thereby improving communication satisfaction and minimizing waste of resources. A base station determines a sub frame ratio by communication service mode by reflecting a communication resource request amount of a user within a cell, and determines a super frame structure(700). By reflecting the super frame structure, the base station generates a super frame preamble and a broadcast channel(705). The base station generates a channel according to each sub frame(710). The base station transmits the whole super frame(715).
Abstract translation: 提供了一种用于在通信系统中提供服务的方法和装置，以提供用于提供最佳传输速率并使用户的价格，延迟和误码率最小化的最佳服务，从而提高通信满意度并最大限度地减少浪费资源。 基站通过反映小区内的用户的通信资源请求量来确定通信服务模式的子帧比，并且确定超帧结构（700）。 通过反映超帧结构，基站生成超帧前导码和广播信道（705）。 基站根据每个子帧产生信道（710）。 基站发送整个超帧（715）。
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公开(公告)号：KR1020080044019A
公开(公告)日：2008-05-20
申请号：KR1020060112794
申请日：2006-11-15
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W72/0453 , H04W72/044 , H04W72/06
Abstract: A resource allocation method in a communication system is provided to allow resource allocation regardless of changing a resource allocation rate of each scenario or a cell size of each cell. In pattern 1, resources are allocated starting from a communication service mode having the largest service coverage, among communication service modes supported by a corresponding base station, at a predetermined resource allocation time start(T1) up to a communication service mode having the smallest service coverage. In pattern 2, resources are allocated starting from a communication service mode having the largest service coverage, among the communication service modes supported by the corresponding base station, at a predetermined resource allocation start time(T2) up to a communication service mode having the largest service coverage. In pattern 3, resources are allocated starting a communication service mode having the largest service coverage, among the communication service mode supported by the base station, at a predetermined resource allocation start time(T3) up to a communication service mode having the smallest service coverage.
Abstract translation: 提供通信系统中的资源分配方法，以允许资源分配，而不管改变每个场景的资源分配率或每个小区的小区大小。 在模式1中，在预定资源分配时间开始（T1）直到具有最小服务的通信服务模式（T1）的情况下，从具有最大服务覆盖的通信服务模式（相应基站支持的通信服务模式）中分配资源 覆盖。 在模式2中，在预定的资源分配开始时间（T2）下，在具有最大的通信服务模式的通信服务模式中，从具有相应基站支持的通信服务模式的通信服务模式的通信服务模式开始分配资源， 服务范围 在模式3中，在预定的资源分配开始时间（T3），直到具有最小的服务覆盖的通信服务模式，从基站支持的通信服务模式中开始具有最大服务覆盖的通信服务模式的资源 。
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公开(公告)号：KR1020080040447A
公开(公告)日：2008-05-08
申请号：KR1020060108436
申请日：2006-11-03
Applicant: 삼성전자주식회사 , 뉴저지 인스티튜트 오브 테크놀로지
Abstract: An apparatus and a method for performing a collaborate hybrid automatic repeat request in a broadband wireless communication system using a relay station are provided to improve the performance of a collaborate hybrid automatic repeat request method by utilizing a virtual multi-antenna environment including a repeater and a transmission antenna of a transmission end. A repeater(220) feeds back location information or channel state information to a transmission end(210). The transmission end calculates the distance to the repeater by using the feedback information, determines whether to perform a collaborate hybrid automatic repeat request, and informs the repeater accordingly. The transmission end initially transmits a data packet to a reception end(230). In this case, the transmission end broadcasts the data packet to allow the repeater to receive the data packet. If the reception end fails to receive the data packet, it broadcasts a NACK message to the transmission end and the repeater. The transmission end and the repeater transmit retransmission packet to the reception end.
Abstract translation: 提供一种用于在使用中继站的宽带无线通信系统中执行协作混合自动重传请求的装置和方法，以通过利用虚拟多天线环境来改善协作混合自动重传请求方法的性能，所述虚拟多天线环境包括中继器和 发射端的发射天线。 中继器（220）将位置信息或信道状态信息反馈到发送端（210）。 传输端通过使用反馈信息计算与中继器的距离，确定是否执行协作混合自动重传请求，并相应地通知中继器。 发送端最初向接收端发送数据分组（230）。 在这种情况下，发送端广播数据包以允许中继器接收数据包。 如果接收端未能接收到数据包，则向发送端和中继器广播NACK消息。 发送端和中继器向接收端发送重传分组。
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公开(公告)号：KR1020080024923A
公开(公告)日：2008-03-19
申请号：KR1020060089697
申请日：2006-09-15
Applicant: 삼성전자주식회사 , 연세대학교 산학협력단
CPC classification number: H04B7/0417 , H04B7/0456 , H04B7/0626 , H04B7/0639
Abstract: A data transmission/reception method and system in a communication system are provided to guarantee the performance of a system continuously although the number of users exists in a communication system. A receiver(250) divides vector codes of a pre-set matrix code book into groups, measures a data stream state of a transmitter(200), checks a group to which a vector code corresponding to a measurement result belongs, and transmits feedback information by the checked group to the transmitter(200). The transmitter(200) transmits data to the receiver(250) through a data stream corresponding to the feedback information received from the receiver(250). The receiver(250) groups the vector codes of the matrix code book according to correlation of the vector codes. The vector codes of the matrix code book are divided into groups corresponding to the number of service streams.
Abstract translation: 提供通信系统中的数据发送/接收方法和系统，以保证系统的性能，尽管在通信系统中存在用户数量。 接收机（250）将预先设定的矩阵码本的矢量码分成组，测定发送机（200）的数据流状态，对与测量结果对应的矢量代码所属的组进行检查，并发送反馈信息 由检查组发送到发射机（200）。 发射机（200）通过与从接收机（250）接收的反馈信息相对应的数据流向接收机（250）发送数据。 接收机（250）根据向量码的相关性对矩阵码本的矢量码进行分组。 矩阵码本的向量码被划分成与服务流数相对应的组。
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