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    • 81. 发明公开
    • 통신 시스템에서 신호 수신 장치 및 방법
    • 用于在通信系统中接收信号的装置和方法
    • KR1020080041514A
    • 2008-05-13
    • KR1020060109697
    • 2006-11-07
    • 삼성전자주식회사
    • 변명광오정태전재호맹승주
    • H04L12/28H04L27/26H04B7/26
    • H04L1/004H04B7/2621H04L25/0328H04L25/03872H04L27/265
    • An apparatus and a method for receiving signals in a communication system are provided to receive the signals so as to remove interference by regenerating ICI(Inter Cell Interference), thereby improving signal receiving performance of the signal receiving apparatus. A first demodulator(219) generates a first signal by demodulating a received signal by using a demodulation mode corresponding to a demodulation mode used in a signal transmitting device. A first decoder(221) generates a second signal by deciding the first signal by using a decoding mode corresponding to an encoding mode used in the signal transmitting device. An interference removing unit(251) generates a third signal by removing an interference signal from the received signal by using neighboring cell information. A second demodulator(259) generates a fourth signal by demodulating the third signal by using the demodulation mode. A second decoder(261) generates a fifth signal by decoding the fourth signal by using the decoding mode.
    • 提供一种用于在通信系统中接收信号的装置和方法,用于接收信号以通过再生ICI(小区间干扰)来消除干扰,从而提高信号接收装置的信号接收性能。 第一解调器(219)通过使用与在信号发送装置中使用的解调模式相对应的解调模式来解调接收信号来生成第一信号。 第一解码器(221)通过使用与在信号发送装置中使用的编码模式对应的解码模式来决定第一信号来生成第二信号。 干扰去除单元(251)通过使用相邻小区信息从接收信号中去除干扰信号来产生第三信号。 第二解调器(259)通过使用解调模式解调第三信号来产生第四信号。 第二解码器(261)通过使用解码模式对第四信号进行解码来生成第五信号。
    • 82. 发明公开
    • 감소된 채널 품질 정보 귀환 방법
    • 降低通道质量信息反馈方法
    • KR1020080040351A
    • 2008-05-08
    • KR1020060108202
    • 2006-11-03
    • 엘지전자 주식회사
    • 임빈철천진영장재원
    • H04B17/00H04L27/26H04B7/26
    • H04L1/0029H04L1/0026H04B7/2621
    • A method for feeding back reduced channel quality information is provided to prevent degradation of the capacity of uplink according to feedback by stopping feedback of CQI(Channel Quality Indicator) with respect to a sub-frequency band having channel quality of below a certain level. A frequency band of a system is divided into a plurality of sub-frequency bands. The first sub-frequency band having the highest CQI is selected among the sub-frequency bands, and a CQI of the selected first sub-frequency band as one of CQI levels of the first sub-frequency band. A CQI of the second sub-frequency band lower than that of the first sub-frequency band is indicated as one of CQI levels smaller than the number of CQI levels of the first frequency band. The CQI of the first sub-frequency band is transmitted. The CQI of the second sub-frequency band is transmitted.
    • 提供了一种用于反馈降低的信道质量信息的方法,以通过停止CQI(信道质量指示符)相对于具有低于一个信道质量的子频带的反馈来反馈来防止上行链路容量的劣化。 系统的频带被划分为多个子频带。 在子频带中选择具有最高CQI的第一子频带,并且选择所选择的第一子频带的CQI作为第一子频带的CQI电平之一。 低于第一子频带的CQI的第二子频带的CQI表示为小于第一频带的CQI电平的数量的CQI电平之一。 发送第一子频带的CQI。 发送第二子频带的CQI。
    • 83. 发明公开
    • 다중 홉 중계방식을 사용하는 무선통신시스템에서 중계서비스를 지원하기 위한 장치 및 방법
    • 支持多中继宽带无线接入通信系统中的继电器服务的装置和方法
    • KR1020080035961A
    • 2008-04-24
    • KR1020070096632
    • 2007-09-21
    • 삼성전자주식회사
    • 장영빈오창윤강현정조재원임형규이성진손영문
    • H04B7/14H04B7/26
    • H04B7/2606H04B7/15507H04B7/15557H04B7/2621
    • An apparatus and a method for supporting a relay service in a wireless communication system by using a multi-hop relay manner are provided to offer time protection area information from a base station to a relay station, thereby setting the synchronization between a relay station and a base station exactly. A frame generator(1109) produces a frame according to a control signal provided from a timing controller(1105). A resource mapping device(1111) allocates each sub frame received from the frame generator to a burst of each link. A modulator(1118) modulates the allocated sub frames of each burst according to the corresponding MCS(Modulation and Coding Scheme). A digital/analog converter(1115) converts the digital signal received from the modulator into analog signals and outputs the converted analog signals to an RF(Radio Frequency) switch(1107). An analog/digital converter(1117) converts the analog signals received through the RF switch into the digital signal. A digital demodulator(1119) demodulates the digital signal received from the analog/digital converter according to the corresponding MCS. A resource de-mapping device(1121) extracts the real frames allocated to the burst of each link. A frame extractor(1123) extracts the sub frame corresponding to the relay station from sub frames received from the de-mapping device.
    • 提供一种通过使用多跳中继方式在无线通信系统中支持中继服务的装置和方法,以从基站向中继站提供时间保护区域信息,由此设置中继站与 基地台。 帧生成器(1109)根据从定时控制器(1105)提供的控制信号产生帧。 资源映射设备(1111)将从帧生成器接收的每个子帧分配给每个链路的突发。 调制器(1118)根据相应的MCS(调制和编码方案)调制每个突发的分配的子帧。 数字/模拟转换器(1115)将从调制器接收的数字信号转换为模拟信号,并将转换的模拟信号输出到RF(射频)开关(1107)。 模拟/数字转换器(1117)将通过RF开关接收的模拟信号转换为数字信号。 数字解调器(1119)根据相应的MCS对从模拟/数字转换器接收的数字信号进行解调。 资源解映射设备(1121)提取分配给每个链路的突发的实际帧。 帧提取器(1123)从从解映射设备接收的子帧中提取对应于中继站的子帧。
    • 84. 发明公开
    • 광대역 무선통신 시스템에서 자원 할당의 시그날링과계산량을 감소시키기 위한 장치 및 방법
    • 用于减少广播无线通信系统中资源分配的计算量和信号量的装置和方法
    • KR1020080035069A
    • 2008-04-23
    • KR1020060101200
    • 2006-10-18
    • 삼성전자주식회사
    • 조면균유철우류탁기김영수
    • H04B7/26H04B7/155H04L27/26
    • Y02D30/30H04W72/044H04B7/2621H04W88/06
    • An apparatus and a method for reducing signaling and the amount of calculation in resource allocation in a broadband wireless communication system are provided to reduce information fed back for resource allocation and provide an optimum service to terminals according to their states. A mode determining unit(103) determines a mode of a terminal according to a state of the terminal. A controller(101) determines a signaling type to feed back different channel information to the terminal according to the determined mode, and performs signaling. A transmitting unit(113) processes transmission data of the terminal through a pre-set different method according to the mode. The mode determining unit determines the mode with reference to at least one of the number of antennas of the terminal, information about a moving speed, information about signal strength, and the number of terminals in a cell. A resource mapping unit(109) maps symbols by antenna, which are provided from a signal processing unit(107), under the control of the controller, and an OFDM(Orthogonal Frequency Division Multiplexing) modulating unit(111) processes the signal of frequency region by antenna, which is provided from the resource mapping unit, based on IFFT(Inverse Fast Fourier Transform) operation and converts the signal into a time region signal.
    • 提供一种用于减少宽带无线通信系统中的信令和资源分配计算量的装置和方法,以减少反馈给资源分配的信息,并根据其状态向终端提供最佳服务。 模式确定单元(103)根据终端的状态确定终端的模式。 控制器(101)根据确定的模式确定信令类型以向终端反馈不同的信道信息,并执行信令。 发送单元(113)根据该模式通过预先设定的不同方式处理终端的发送数据。 模式确定单元参考终端的天线数量,关于移动速度的信息,关于信号强度的信息以及小区中的终端的数量中的至少一个来确定模式。 资源映射单元(109)在控制器的控制下,由信号处理单元(107)提供的天线映射符号,OFDM(正交频分复用)调制单元(111)处理频率信号 基于IFFT(快速傅里叶逆变换)操作从资源映射单元提供的天线区域,并将该信号转换为时域信号。
    • 85. 发明公开
    • 다중 반송파 이동통신 시스템의 주파수 자원 할당 방법
    • 用于多载波移动通信协议的频率资源分配方法
    • KR1020080023825A
    • 2008-03-17
    • KR1020060087877
    • 2006-09-12
    • 엘지전자 주식회사연세대학교 산학협력단
    • 오민석한승희권영현김성륜
    • H04B7/26H04L27/26
    • H04W72/0453H04B7/2621H04L27/26
    • A method for allocating frequency resources in a multi-carrier mobile communication system is provided to maximize frequency efficiency through efficient interference control and to allocate frequency resources in consideration of efficiency in plural link levels as well as efficiency in a single link level. A base station determines the frequency reuse coefficient "K"(S110). The base station calculates the initial diffusion coefficient "Lb" in order to determine the frequency domain diffusion coefficient(S120). Based on the initial diffusion coefficient "Lb", the base station finds out the effective frequency domain diffusion coefficient "Leffective" having the lowest outage probability(S130). The base station judges whether the determined frequency reuse coefficient "K" and the obtained effective frequency domain diffusion coefficient "Leffective" are optimal for the performance of the present system(S140). If so, the base station applies the frequency reuse coefficient "K" and the effective frequency domain diffusion coefficient "Leffective" to the system(S150).
    • 提供一种用于在多载波移动通信系统中分配频率资源的方法,以通过有效的干扰控制来最大化频率效率,并考虑多个链路级的效率以及单个链路级的效率来分配频率资源。 基站确定频率重用系数“K”(S110)。 为了确定频域扩散系数,基站计算初始扩散系数“Lb”(S120)。 基于初始扩散系数“Lb”,基站发现中断概率最低的有效频域扩散系数“有效”(S130)。 基站判断所确定的频率重用系数“K”和所获得的有效频域扩散系数“Leffective”对于本系统的性能是否最佳(S140)。 如果是,则基站向系统施加频率重用系数“K”和有效频域扩散系数“有效”(S150)。
    • 86. 发明公开
    • 통신 시스템에서 부채널 생성 장치 및 방법
    • 在通信系统中生成子信道的装置和方法
    • KR1020080018515A
    • 2008-02-28
    • KR1020060080736
    • 2006-08-24
    • 삼성전자주식회사
    • 장정렬양장훈문준조재희황인석
    • H04L27/26H04J11/00H04B7/26H04B7/005
    • H04L5/003H04B7/2621H04L27/26
    • An apparatus and a method for generating a sub-channel in a communication system are provided to secure diversity performance by generating the sub-channel using EPUSC(Evolutionary Partial Usage of Sub-channel) tiles. A method for generating a sub-channel in a communication system includes the steps of: generating at least one tile to be included in the sub-channel(311); mapping data sub-carriers on the sub-channel including the at least one tile; rotating the sub-channel by a sub-channel rotation period to include the continuous tiles along a time axis(315); and generating the sub-channel by mapping a pilot sub-carrier on the rotated sub-channel(327).
    • 提供一种用于在通信系统中生成子信道的装置和方法,以通过使用EPUSC(子信道的进化部分使用)片生成子信道来确保分集性能。 一种用于在通信系统中生成子信道的方法包括以下步骤:生成要被包括在子信道(311)中的至少一个瓦片; 在包括所述至少一个瓦片的子信道上映射数据子载波; 通过子通道旋转周期旋转子通道以沿着时间轴(315)包括连续瓦片; 以及通过在旋转的子信道(327)上映射导频子载波来生成子信道。
    • 87. 发明公开
    • 등화기 및 이를 이용한 채널 추정 방법
    • 用于估计信道系数的均衡器和方法
    • KR1020080018336A
    • 2008-02-28
    • KR1020060080296
    • 2006-08-24
    • 전자부품연구원
    • 김도훈강성진홍대기김용성김선희조진웅
    • H04B7/005H04B7/26
    • H04B7/005H04B7/2621H04L25/0204
    • An equalizer and a channel estimation method using the same are provided to obtain an FEQ(Frequency Equalizer) tap by applying a newly-proposed and simplified channel estimation algorithm to a preamble section, and applying an existing LMS(Least Mean Square) algorithm to a data transmission section, thereby exactly estimating a channel as reflecting a changed channel state. In a channel estimation method of a receiving signal including a preamble section and a data section, the method comprises the following steps of: approximating a square value of the receiving signal to a 2N in the preamble section; and implementing an equalizer for compensating channel distortion by using a reciprocal number of the square value of the approximated receiving signal. To the data section, an LMS algorithm is applied to perform the channel estimation.
    • 提供了一种使用其的均衡器和信道估计方法,以通过将新提出的和简化的信道估计算法应用于前导码部分来获得FEQ(频率均衡器)抽头,并将现有的LMS(最小均方根)算法应用于 数据传输部分,从而将信道精确估计为反映改变的信道状态。 在包括前导码部分和数据部分的接收信号的信道估计方法中,该方法包括以下步骤:在前同步码段中将接收信号的平方值近似为2N; 并且通过使用近似接收信号的平方值的倒数来实现用于补偿信道失真的均衡器。 对于数据部分,应用LMS算法来执行信道估计。
    • 88. 发明公开
    • 통신 시스템에서 임의 접속 채널을 통한 데이터 송수신방법 및 장치
    • 用于在通信系统中发送/接收随机访问信道的方法和装置
    • KR1020080018056A
    • 2008-02-27
    • KR1020060080133
    • 2006-08-23
    • 삼성전자주식회사
    • 홍승철문희찬
    • H04B7/26
    • H04W74/08H04B7/2621H04B7/2628
    • A method and an apparatus for transceiving data through a random channel access in a communication system are provided to transmit a message together with a preamble or a signature of a reverse access channel and ensure enough sequence used as the preamble, thereby flexibly performing length control and power assignment of the message and the preamble or the signature. A data transmitting method comprises the following steps of: generating a message which will be transmitted through a random access channel, multiplying the message by a first Walsh code, loading the message on a Q axis signal of a transmission signal, and transmitting the message; and multiplying a preamble signal, which will be transmitted through the random access channel, by a second Walsh code orthogonal to the first Walsh code, and then loading the preamble signal on an I axis signal of the transmission signal before transmitting the preamble signal.
    • 提供了一种用于在通信系统中通过随机信道接入收发数据的方法和装置,用于与反向接入信道的前导码或签名一起发送消息,并确保用作前同步码的足够的序列,从而灵活地执行长度控制, 消息的功率分配以及前导码或签名。 数据发送方法包括以下步骤:产生将通过随机接入信道发送的消息,将消息乘以第一沃尔什码,将消息加载在发送信号的Q轴信号上,并发送该消息; 并且将通过随机接入信道发送的前同步信号乘以与第一沃尔什码正交的第二沃尔什码,然后在发送前同步码信号之前将该前同步码信号加载到发送信号的I轴信号上。
    • 90. 发明公开
    • OFDM 셀룰라 시스템에서의 셀 탐색 방법, 이를 위한프레임 송신 방법 및 순방향 링크 프레임 구조
    • OFDM蜂窝系统中的小区搜索方法,帧传输方法及其链路帧结构
    • KR1020080010254A
    • 2008-01-30
    • KR1020060107489
    • 2006-11-01
    • 한국전자통신연구원삼성전자주식회사
    • 김일규박형근장갑석고영조이효석김영훈방승찬
    • H04B7/26H04L27/26
    • H04B1/7083H04B7/2621H04W84/02
    • A cell search method in an OFDM(Orthogonal Frequency Division Multiplexing) cellular system, a frame transmission method therefor, and a forward link frame structure are provided to smoothly perform handover by effectively searching an adjacent cell, and reduce the amount of battery consumption of a mobile station. The first detecting unit obtains symbol synchronization by applying a matching filter to a reception signal(S800). A hop pattern correlation values are calculated by using reception synchronous channel symbols extracted from the reception signal based on the obtained symbol synchronization information, and a hop pattern of a target cell is detected based on the calculated hop pattern correlation values(S820). A code group and a frame boundary of the target cell are detected based on the detected hop pattern(S840). Pilot correlation values of common pilot channel symbols and scrambling codes belonging to the detected code group are calculated, and the scrambling codes of the target cell are detected based on the calculated pilot correlation value(S860). It is checked whether the detection results are reliable(S880).
    • 提供了OFDM(正交频分复用)蜂窝系统中的小区搜索方法,其帧传输方法和前向链路帧结构,以通过有效地搜索相邻小区来平滑地执行切换,并且减少电池消耗量 移动台。 第一检测单元通过对接收信号应用匹配滤波器来获得符号同步(S800)。 通过使用基于获得的符号同步信息从接收信号提取的接收同步信道符号来计算跳模式相关值,并且基于所计算的跳频模式相关值来检测目标小区的跳频模式(S820)。 基于检测到的跳跃模式来检测目标小区的码组和帧边界(S840)。 计算属于所检测的代码组的公共导频信道符号和扰码的导频相关值,并且基于所计算的导频相关值来检测目标小区的扰码(S860)。 检查检测结果是否可靠(S880)。