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公开(公告)号：KR1020080087454A
公开(公告)日：2008-10-01
申请号：KR1020070029708
申请日：2007-03-27
Applicant: 삼성전자주식회사
CPC classification number: H04W36/0066 , H04W36/0083 , H04W36/08 , H04W36/14 , H04W88/10
Abstract: An apparatus and a method for mapping QoS(Quality of Service) parameters between heterogeneous systems in a wireless communication system are provided to solve a problem due to the inconsistency of QoS parameters and maintain QoS in handover by mapping QoS parameters for a mobile terminal which executes handover between heterogeneous systems. A wireless communication system comprises the first base station(110), the second base station(120), and a mapping server(130). The first base station executes communication with a mobile terminal(140) through a radio channel in accordance with the first standards. The second base station executes communication with the mobile terminal through a radio channel in accordance with the second standards. The mapping server, if a message containing a QoS parameter complying with the first standards is received from the first base station, maps the QoS parameter into a QoS parameter complying with the second standards. Then the mapping server transmits a message containing the mapped QoS parameter to the second base station.
Abstract translation: 提供了一种用于在无线通信系统中的异构系统之间映射QoS（服务质量）参数的装置和方法，以解决由于QoS参数的不一致而导致的问题，并通过映射执行的移动终端的QoS参数来维护切换中的QoS 异构系统之间切换。 无线通信系统包括第一基站（110），第二基站（120）和映射服务器（130）。 第一基站根据第一标准通过无线电信道执行与移动终端（140）的通信。 第二基站根据第二标准通过无线电信道执行与移动终端的通信。 如果从第一基站接收到包含符合第一标准的QoS参数的消息，映射服务器将QoS参数映射到符合第二标准的QoS参数中。 然后，映射服务器将包含映射的QoS参数的消息发送到第二基站。
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公开(公告)号：KR1020080035403A
公开(公告)日：2008-04-23
申请号：KR1020060102063
申请日：2006-10-19
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W24/10 , H04W72/04 , H04W72/0446
Abstract: A method and an apparatus for allocating resources in a communication system are provided to adaptively allocate channels for receiving feedback information from each receiver according to channel information received from each receiver and information of data to be transmitted to each receiver. A transmitter, e.g., a BS(Base Station), receives a CQI(Channel Quality Information) and information of data to be transmitted by a current arbitrary nth frame to each receiver from MS(Mobile Stations)(201). The transmitter determines the size of CQICH(Channel Quality Information Channel) to be transmitted to each receiver according to the received information of the data and CQI(203). The transmitter allocates CQICH from receivers having a maximum value of a data transfer rate and a maximum amount of data existing in transmission buffers according to the allocation order of channels with respect to each receiver in the current frame and an SINR(Signal to Interference plus Noise Ratio) of each receiver with respect to corresponding channels(205).
Abstract translation: 提供一种用于在通信系统中分配资源的方法和装置，用于根据从每个接收机接收的信道信息和要发送到每个接收机的数据的信息，自适应地分配用于从每个接收机接收反馈信息的信道。 诸如BS（基站）的发射机从MS（移动台站）（201）向每个接收机接收CQI（信道质量信息）和将由当前任意的第n帧发送的数据的信息。 发射机根据接收的数据信息和CQI（203）确定要发送到每个接收机的CQICH（信道质量信息信道）的大小。 发射机根据相对于当前帧中的每个接收机的信道的分配顺序以及SINR（信号干扰加噪声（Signal to Interference plus Noise）），分配来自具有数据传输速率的最大值和发送缓冲器中存在的最大数据量的接收机的CQICH 比率）相对于相应的通道（205）。
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公开(公告)号：KR1020070088237A
公开(公告)日：2007-08-29
申请号：KR1020060088974
申请日：2006-09-14
Applicant: 삼성전자주식회사 , 포항공과대학교 산학협력단
IPC: H04B7/04
CPC classification number: H04B7/0854 , H04L1/0656 , H04B7/0413
Abstract: An ICI(InterCarrier Interference) removing method in an MIMO-OFDM(Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing) system and a receiving apparatus using the same are provided to perform CPR(Cyclic Prefix Reconstruction) by using an I-CMOS(Improved-Capacity Mapping Ordering Scheme) and an I-MMSE(Improved-Minimum Mean-Square Error), thereby significantly restraining ICI(InterCarrier Interference) of the MIMO system with an insufficient CP(Cyclic Prefix). A receiving apparatus for removing ICI(InterCarrier Interference) in an MIMO(Multiple-Input Multiple-Output) system comprises the followings: a detection order(225) which determines the detection order of each subcarrier according to the order of SINRs(Signal to Interference plus Noise Ratios) based on an I-CMOS(Improved-Capacity Mapping Ordering Scheme); a detector which receives advance information from a receiving vector of the subcarrier and a decoder according to the determined detection order and repeatedly estimates signals; and the decoder which decodes a signal of which the ICI is removed according to the estimated detection signal.
Abstract translation: 提供了MIMO-OFDM（多输入多输出正交频分复用）系统中的ICI（InterCarrier Interference，多载波干扰）去除方法及使用其的接收装置，通过使用I-CMOS（ 改进的容量映射排序方案）和I-MMSE（改进的最小均方误差），从而显着地抑制具有不足的CP（循环前缀）的MIMO系统的ICI（InterCarrier Interference）。 一种用于去除MIMO（多输入多输出）系统中的ICI（InterCarrier Interference）的接收装置，包括以下步骤：检测顺序（225），其根据SINR的顺序确定每个子载波的检测顺序（信号与干扰 基于I-CMOS（改进容量映射排序方案）的噪声比）; 检测器，根据所确定的检测顺序从子载波的接收矢量和解码器接收提前信息，并重复地估计信号; 以及根据估计的检测信号解码ICI被去除的信号的解码器。
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公开(公告)号：KR1020070082355A
公开(公告)日：2007-08-21
申请号：KR1020060015084
申请日：2006-02-16
IPC: H04B7/26
CPC classification number: H04L5/006 , H04B17/24 , H04B17/309 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0007 , H04L5/0037 , H04L5/0046 , H04W24/00 , H04W72/0406 , H04W72/048 , H04B7/2621
Abstract: A sub-channel allocation apparatus and method in a wireless communication system are provided to reduce a signaling overhead and increase a system throughput by reducing the system overhead. A movement speed measuring unit(501) measures a movement speed of terminals. A resource allocation period determining unit(503) selects each terminal to which sub-channel are to be allocated, and determines a resource allocation period for allocating sub-channels to the terminals. An average data amount calculating unit(505) receives the determined resource allocation period and calculates an average amount of data to be transmitted to each terminal. A resource allocating unit(507) allocates sub-channels such that the average amount of data is satisfied in consideration of channel quality information of the terminals. A transmitting unit(509) generates a control signal according to the sub-channel allocation and transmits it to the terminals.
Abstract translation: 提供无线通信系统中的子信道分配装置和方法，以减少信令开销，并通过减少系统开销来提高系统吞吐量。 移动速度测量单元（501）测量端子的移动速度。 资源分配周期确定单元（503）选择要分配哪个子信道的每个终端，并且确定用于向终端分配子信道的资源分配周期。 平均数据量计算单元（505）接收确定的资源分配周期，并计算要发送到每个终端的平均数据量。 资源分配单元（507）分配子信道，使得考虑到终端的信道质量信息来满足平均数据量。 发送单元（509）根据子信道分配生成控制信号并将其发送到终端。
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公开(公告)号：KR1020070071713A
公开(公告)日：2007-07-04
申请号：KR1020050135410
申请日：2005-12-30
Applicant: 삼성전자주식회사 , 포항공과대학교 산학협력단
IPC: H04B7/04
CPC classification number: H04L1/0618
Abstract: A signal transceiving device in a wireless communication system and a method thereof are provided to use an STFBC(Space Time Frequency Block Coder) simultaneously applied with an STBC(Space Time Block Coding) type and an SFBC(Space Frequency Block Coding) type, thereby preventing system performance deterioration from occurring even on a high-speed fading channel and a frequency selective fading channel. A symbol mapper(401) maps an inputted bit string into a symbol of predetermined length. An STFBC(403) performs an SFBC process based on two antenna pairs for an inputted signal, outputs signal blocks corresponding to the number of transmission antennas, and executes an STBC process for signal blocks generated according to the antenna pairs. CP(Cyclic Prefix) inserters(413,415,417,419) insert guard intervals into output signals of the STFBC(403), and transmit the signals through each antenna.
Abstract translation: 提供无线通信系统中的信号收发装置及其方法，以使用同时应用STBC（空时块编码）类型和SFBC（空间频率块编码）类型的STFBC（空时频率块编码器），从而 即使在高速衰落信道和频率选择性衰落信道上也能防止系统性能恶化。 符号映射器（401）将输入的位串映射为预定长度的符号。 STFBC（403）基于输入信号的两个天线对执行SFBC处理，输出与发送天线数相对应的信号块，并且对根据天线对生成的信号块执行STBC处理。 CP（循环前缀）插入器（413,415,417,419）将保护间隔插入到STFBC（403）的输出信号中，并通过每个天线发送信号。
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Patent Agency Ranking
公开(公告)号：KR1020070027999A
公开(公告)日：2007-03-12
申请号：KR1020050080034
申请日：2005-08-30
Applicant: 삼성전자주식회사
IPC: H04B7/26
Abstract: A resource allocation method in a wideband multi-access communication system and an allocated resource receiving method are provided to enable user terminals which relatively receive the severe influence of interference by neighboring BSs(Base Stations) in cell border areas to exactly receive a common control channel unit, thus communication is stably performed. A common control channel unit and a preamble unit of a downlink frame transmitted from a particular BS are allocated only to a particular sub-carrier band having frequency reuse coefficients, not to be identical with a sub-carrier band allocated to a common control channel unit and a preamble unit of a neighboring BS, at the same timing as the common control channel unit and the preamble unit of a downlink frame transmitted from the neighboring BS adjacent to the particular BS. A user-only traffic unit of the downlink frame transmitted from the particular BS is allocated to the entire sub-carrier bands, at the same timing as a user-only traffic unit of the downlink frame transmitted from the neighboring BS.
Abstract translation: 提供了一种宽带多址通信系统中的资源分配方法和分配的资源接收方法，以使得能够相对接收相邻BS（基站）在小区边界区域中的干扰的严重影响的用户终端精确地接收公共控制信道 单元，从而稳定地进行通信。 从特定BS发送的下行链路帧的公共控制信道单元和前导码单元仅分配给具有频率重用系数的特定子载波频带，不与分配给公共控制信道单元的子载波频带相同 和相邻BS的前同步码单元，与从与特定BS相邻的相邻BS发送的下行链路帧的公共控制信道单元和前导码单元相同。 在与相邻BS发送的下行链路帧的仅用户业务单元相同的定时，将特定BS发送的下行链路帧的仅用户业务单元分配给整个子载波频带。
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公开(公告)号：KR1020070021609A
公开(公告)日：2007-02-23
申请号：KR1020050076058
申请日：2005-08-19
Applicant: 삼성전자주식회사 , 연세대학교 산학협력단
IPC: H04L27/26
CPC classification number: H04L27/2657 , H04B1/70735 , H04J11/0069 , H04L5/0017 , H04L5/0048 , H04L25/03866 , H04L27/2613
Abstract: 본 발명은 다중반송파(multi-carrier)를 사용하는 광대역 무선통신시스템에서 효율적인 셀 탐색을 위한 송수신 장치 및 방법에 관한 것이다. 본 발명에 따른 기지국의 송신방법은, 상기 기지국이 속한 코드그룹에 따라 특정 심볼들을 미리 정해진 부반송파들에 매핑하여 동기채널 신호를 발생하는 과정과, 소정 시간-주파수 영역에 매핑되는 트래픽 채널 신호와 파일럿 채널 신호를 코드 다중화하는 과정과, 상기 코드다중화된 신호를 상기 기지국을 구분하기 위한 소정 코드를 이용해 시간축 우선으로 스크램블링하는 과정과, 상기 동기채널 신호와 상기 스크램블링된 신호를 시간 다중화하는 과정과, 상기 시간 다중화된 신호를 OFDM변조하여 송신하는 과정을 포함한다. 이와 같은 본 발명은 코드 그룹 및 스크램블링 코드 검출 성능을 증가시킴으로써 효율적이면서도 정확한 셀 탐색이 가능한 이점이 있다.
MC-CDMA, OFDM, OFCDMA, 다단계 셀 탐색-
公开(公告)号：KR1020070000321A
公开(公告)日：2007-01-02
申请号：KR1020050055984
申请日：2005-06-27
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W72/08 , H04L5/023 , H04L27/2608 , H04W72/0413 , H04W72/085 , H04W72/1226
Abstract: A dynamic channel allocation method in an OFDM access mobile communication system is provided to enable a mobile station to provide channel gain change value, at channel state measuring points distributed within a total frequency band, as feed back information, and enable a base station to estimate a channel environment based on the channel gain change value and allocate optimal resources to the mobile station according to the estimated channel environment, thereby reducing the feedback information and compensating for performance attenuation which may occur due to a reduction of feedback information. A method for transmitting feedback information in a mobile communication system comprises the following steps of: dividing a total frequency band into the first frequency band and the second frequency band based on an arbitrary frequency existing within the total frequency band, and measuring channel gains at channel state measuring points existing on the first and second frequency bands(510); and determining channel state bit values, showing channel gain changes at each channel state measuring point, by comparing a channel gain at each channel state measuring point with a channel gain at the previous channel state measuring point, and then reporting the channel state bit values, determined at each channel state measuring point, as the feedback information to a base station(512,514).
Abstract translation: 提供了一种OFDM接入移动通信系统中的动态信道分配方法，使得移动台能够在分布在总频带内的信道状态测量点处提供信道增益变化值作为反馈信息，并使基站能够估计 基于信道增益变化值的信道环境，并且根据估计的信道环境向移动站分配最佳资源，由此减少反馈信息并补偿由于反馈信息的减少而可能发生的性能衰减。 一种用于在移动通信系统中发送反馈信息的方法包括以下步骤：基于存在于总频带内的任意频率将总频带划分成第一频带和第二频带，并测量信道中的信道增益 存在于第一和第二频带（510）上的状态测量点; 并且通过将每个信道状态测量点处的信道增益与先前信道状态测量点处的信道增益进行比较，然后报告信道状态位值，确定通道状态位值，显示每个通道状态测量点处的通道增益变化， 在每个通道状态测量点确定作为到基站的反馈信息（512,514）。
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