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公开(公告)号：KR1020080022362A
公开(公告)日：2008-03-11
申请号：KR1020060085714
申请日：2006-09-06
Applicant: 삼성전자주식회사 , 고려대학교 산학협력단
CPC classification number: H04B7/0691 , H04B7/061 , H04B7/0697 , H04L1/0054 , H04B7/0417
Abstract: An antenna selection method in an orthogonalized spatial multiplexing system is provided to introduce real-number expressions for a complex number MIMO(Multi Input Multi Output) system to simplify MLD(Maximum Likelihood Decoding), thereby offering a single-symbol decoding spatial multiplexing method based on phase feedback. Two input symbols are pre-coded by a predetermined function according to previously fed-back channel state information. The pre-coded symbols are transmitted by being switched to two optimum transmission antennas among plural transmission antennas by using the channel state information. The transmitted symbols are received through plural reception antennas to decode the received symbols individually. New channel state information is fed back by selecting an optimum subset of the transmission antennas and determining a rotational angle on the basis of Euclidean distance between vectors of the decoded symbols.
Abstract translation: 提供了一种正交空间复用系统中的天线选择方法，用于引入复数MIMO（多输入多输出）系统的实数表达式，以简化MLD（最大似然解码），从而提供基于单符号解码空间复用方法 相位反馈。 根据先前反馈的信道状态信息，两个输入符号由预定的功能进行预编码。 通过使用信道状态信息，通过在多个发送天线中切换到两个最佳发送天线来发送预编码符号。 通过多个接收天线接收所发送的符号，以分别对接收到的符号进行解码。 通过选择发送天线的最佳子集并且基于解码符号的向量之间的欧几里德距离来确定旋转角度来反馈新的信道状态信息。
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公开(公告)号：KR1020070105107A
公开(公告)日：2007-10-30
申请号：KR1020060037155
申请日：2006-04-25
Applicant: 삼성전자주식회사
IPC: H04B1/38
CPC classification number: H04M1/026 , G04G21/04 , G04G99/006 , H04M1/0237 , H04M1/23 , H04M2001/0204 , H04M2201/38 , H04M2250/52 , H04R2499/11
Abstract: A wrist wearable type portable terminal is provided to enable a user to wear easily the portable terminal on the wrist of the user and to enable a user to make a voice call connection or transmit a short message easily by performing mode conversion via a sliding movement of the first housing. A wrist wearable type portable terminal comprises the first housing(101), the second housing(102), and a wrist wearing unit(103). The first housing(101) includes a display unit on one side. The second housing(102) includes a keypad and is combined with the first housing(101) while facing the housing(101). The wrist wearing unit(103), extended from the second housing, has a shape of covering the wrist. The wrist wearing unit has one part open. According as the first housing(101) slides, one side of the second housing(102) closes. If the first housing(101) closes the second housing(102), the display unit displays time.
Abstract translation: 提供了一种手持式便携式终端，以使用户能够容易地佩戴用户的手腕上的便携式终端，并且使用户能够通过经由滑动移动进行模式转换而进行语音呼叫连接或简单地发送短消息 第一个住房。 手腕式便携式终端包括第一壳体（101），第二壳体（102）和手腕佩戴单元（103）。 第一壳体（101）在一侧包括显示单元。 第二壳体（102）包括小键盘并与第一壳体（101）组合，同时面向壳体（101）。 从第二壳体延伸的手腕佩戴单元（103）具有覆盖手腕的形状。 手腕佩戴单元有一部分打开。 根据第一壳体（101）滑动，第二壳体（102）的一侧关闭。 如果第一壳体（101）关闭第二壳体（102），则显示单元显示时间。
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公开(公告)号：KR1020070092872A
公开(公告)日：2007-09-14
申请号：KR1020060022246
申请日：2006-03-09
CPC classification number: H04L1/06 , H04L25/03006 , H04L2025/03426
Abstract: An apparatus and a method for detecting a signal in a communication system using an MIMO(Multiple Input Multiple Output) scheme are provided to detect a signal with minimum complexity and guarantee signal detection performance similar to that of the maximum likelihood estimation. The first matrix consisting of channel response vectors is expanded to generate the second matrixes. The second matrixes are disintegrated to generate certain matrixes, and lattice points configured by vectors of the second matrixes are generated. A signal is estimated by using the generated matrixes and lattice points. When the estimated signal has a value of a pre-set allowable range, it is detected as a reception signal.
Abstract translation: 提供一种用于使用MIMO（多输入多输出）方案来检测通信系统中的信号的装置和方法，用于以最小复杂度检测信号，并保证与最大似然估计类似的信号检测性能。 由信道响应向量组成的第一矩阵被扩展以产生第二矩阵。 第二矩阵被分解以产生某些矩阵，并且生成由第二矩阵的向量配置的格点。 通过使用生成的矩阵和格点来估计信号。 当估计信号具有预设允许范围的值时，被检测为接收信号。
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公开(公告)号：KR1020070080407A
公开(公告)日：2007-08-10
申请号：KR1020060011685
申请日：2006-02-07
Applicant: 삼성전자주식회사
CPC classification number: H04L1/1819 , H04L1/0057 , H04L1/0069 , H04L1/0071 , H04L1/1816 , H04L1/1887
Abstract: A hybrid automatic repeat request method based on an LDPC(Low Density Parity Check) code is provided to obtain a channel interleaving effect by shuffling and transmitting blocks having the same priority. A hybrid automatic repeat request method based on an LDPC code includes the steps of: generating a code language by using the LDPC code; classifying parity bit included in the code language based on a transmission priority and grouping the parity bit with the same transmission priority; shuffling a parity bit group with the same transmission priority and an information bit group included in the code language as predetermined patterns respectively; and including a packet of the information bit group and the parity bit group considering the transmission priority and retransmitting according to a retransmission request.
Abstract translation: 提供了一种基于LDPC（低密度奇偶校验）码的混合自动重传请求方法，以通过混洗和发送具有相同优先级的块来获得信道交织效果。 基于LDPC码的混合自动重传请求方法包括以下步骤：通过使用LDPC码生成代码语言; 基于传输优先级对包含在代码语言中的奇偶校验位进行分类，并以相同的传输优先级将奇偶校验位分组; 将具有相同传输优先级的奇偶校验位组和包括在代码语言中的信息位组分别作为预定模式进行混洗; 并且考虑到传输优先级并根据重传请求重传，包括信息比特组和奇偶校验比特组的分组。
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Patent Agency Ranking
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公开(公告)号：KR1020070038375A
公开(公告)日：2007-04-10
申请号：KR1020050093621
申请日：2005-10-05
Applicant: 삼성전자주식회사
IPC: H04J11/00
CPC classification number: H04B7/0669 , H04B7/0473 , H04B7/0684 , H04B7/0691 , H04B7/0871 , H04B7/0874 , H04J11/00
Abstract: 본 발명은 다수개의 송신 안테나들을 사용하는 직교 주파수 분할 다중화(OFDM: Orthogonal Frequency Division Multiplexing)/직교 주파수 분할 다중 접속(OFDMA: Orthogonal Frequency Division Multiple Access) 방식을 사용하는 통신 시스템에서, 송신하고자 하는 정보 데이터에 상응하는 변조 심벌들이 입력되면, 상기 변조 심벌들을 미리 설정되어 있는 시공간 사상 방식에 상응하게 시공간 사상하여 심벌들로 생성하고, 상기 심벌들을 무선 주파수 처리하고, 상기 무선 주파수 처리한 심벌들을 상기 다수개의 송신 안테나들중 해당 송신 안테나를 통해 송신한다.
레이트 1 시공간 부호화 방식, 레이트 2 시공간 부호화 방식, 송신 안테나, 파일럿, 채널 추정, 부호어 송신 시구간-
公开(公告)号：KR1020070028082A
公开(公告)日：2007-03-12
申请号：KR1020050083264
申请日：2005-09-07
Applicant: 삼성전자주식회사
Inventor： 김영수
CPC classification number: H04L1/0003 , H04B7/0491 , H04B7/12 , H04J11/005 , H04L1/0009 , H04L1/04 , H04L5/0007 , H04L5/0037 , H04L5/0046 , H04L5/006 , H04W72/00 , H04W72/0453 , H04L5/0073
Abstract: A method for assigning a sub channel in a communication system using an OFDMA(Orthogonal Frequency Division Multiple Access) scheme is provided to prevent a performance of the system from being deteriorated due to a band AMC(Adaptive Modulation Coding) sub-channel collision by allocating a band AMC sub-channel to minimize a collision between cells or sectors in the mobile communication system using the OFDMA scheme. A method for assigning a sub channel in a communication system using an OFDMA scheme includes the steps of: dividing a predetermined time section in a time domain into a band AMC sub-channel region and a diversity sub-channel region for a plurality of cells or a plurality of sectors; and controlling to allocate a band AMC sub-channel in a predetermined frequency domain of a total frequency band which is used in the OFDMA scheme in the band AMC sub-channel region. The step of controlling to allocate the band AMC sub-channel in the predetermined frequency domain of the total frequency band in the band AMC sub-channel region differently controls the predetermined frequency domain to allocate the band AMC sub-channel of the plurality of cells or the plurality of sectors.
Abstract translation: 提供了一种使用OFDMA（正交频分多址）方案在通信系统中分配子信道的方法，以防止由于通过分配频带AMC（自适应调制编码）子信道冲突而使系统的性能恶化 使用OFDMA方案来最小化移动通信系统中的小区或扇区之间的冲突的频带AMC子信道。 一种使用OFDMA方案在通信系统中分配子信道的方法包括以下步骤：将时域中的预定时间段划分成多个小区的频带AMC子信道区域和分集子信道区域， 多个扇区; 并且控制在频带AMC子信道区域中在OFDMA方案中使用的总频带的预定频域中分配频带AMC子信道。 控制在频带AMC子信道区域中的总频带的预定频域中分配频带AMC子信道的步骤不同地控制预定频域以分配多个小区的频带AMC子信道， 多个扇区。
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公开(公告)号：KR1020060131049A
公开(公告)日：2006-12-20
申请号：KR1020050051186
申请日：2005-06-15
Applicant: 삼성전자주식회사
IPC: H04L12/28
CPC classification number: H04W52/0216 , H04W52/0232 , Y02D70/142
Abstract: A power-saving device in a wireless communication system and a method thereof are provided to make the current state of a terminal converted into a sleep mode after the terminal collectively processes data transceiving by periodically or non-periodically waking up according to each service characteristic, thereby reducing power consumption of the terminal. A protocol controller(205) generates the first control information frame which notifies an access point of wake-up when the wake-up occurs in sleep mode, and generates the third control information frame which includes receivable period information when the second control information frame, including requested transmission period information of the access point, is received. A frame aggregation controller(207) aggregates the third control information frame and user data frames to be transmitted, into one protocol data unit, and delivers the aggregated protocol data unit to a physical layer.
Abstract translation: 提供一种无线通信系统中的省电装置及其方法，用于根据每个服务特性，通过周期性地或不定期地唤醒终端，在终端共同处理数据收发之后，使终端转换为休眠模式的当前状态， 从而降低终端的功耗。 协议控制器（205）产生在休眠模式下发生唤醒时通知接入点唤醒的第一控制信息帧，并且当第二控制信息帧产生包括可接收周期信息的第三控制信息帧时， 包括接入点所请求的发送周期信息。 帧聚合控制器（207）将要发送的第三控制信息帧和用户数据帧聚合成一个协议数据单元，并将聚合的协议数据单元传送到物理层。
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公开(公告)号：KR1020060105692A
公开(公告)日：2006-10-11
申请号：KR1020060078344
申请日：2006-08-18
Applicant: 삼성전자주식회사
IPC: H04L1/16
CPC classification number: H04L1/1614 , H04L1/1621 , H04L1/1829
Abstract: 본 발명에서는 패킷의 수신 결과를 통보하는 역할을 충실히 수행하면서도 상시 수신 결과에 따른 정보가 기록되는 영역(비트맵 필드)의 크기를 최적화할 수 비트맵 구조를 제안한다. 이를 위해 송신측에서는 연속하여 전송할 SN 레벨 패킷들의 수와 최대 조각 패킷의 수를 수신측으로 제공한다. 수신측에서는 연속하여 전송할 SN 레벨 패킷들의 수와 최대 조각 패킷의 수에 의해 최적화된 비트맵 구성 방식을 결정한다. 그리고 결정된 비트맵 구성 방식에 의해 각 조각 패킷들에 대한 수신 결과를 송신측으로 보고한다.
ARQ, Block ACK Bitmap, SN level packet, fragmented packet, Sequence Number, Fragmentation Number, Block ACK Request Frame, Block ACK FrameAbstract translation: 本发明提出了一种能够在忠实地执行通知分组的接收结果的功能的同时记录其中记录了根据始终接收的结果的信息的区域（位图字段）的大小的位图结构。 为此，发送方向接收方提供要发送的SN级分组的数量和分段分组的最大数量。 接收端通过连续发送的SN级数据包的数量和最大分片数据包数量来确定优化的位图配置方案。 并且通过确定的位图构造方法向发送者报告每个分段分组的接收结果。
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