专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

KR100855019B1 연판정 정보 생성 시스템 및 방법 失效
标题翻译：用于产生软判决的系统和方法
公开(公告)号：KR100855019B1
公开(公告)日：2008-09-02
申请号：KR1020060136676
申请日：2006-12-28
申请人： 주식회사 포스코아이씨티 , 포항공과대학교 산학협력단
发明人： 전경훈 , 설창규
IPC分类号： H04B7/04 , H04L27/34
CPC分类号： H04L25/067 , H04L1/0631 , H04L1/0656
摘要： 본 발명은 부호화된 다중 입력 다중 출력(Multi-Input Multi-Output;MIMO) 시스템에서 로그 우도 비(Log-Likelihood Ratio;LLR) 계산시 필요한 후보 심벌 벡터의 개수를 줄일 수 있도록 한 연판정 정보 생성 시스템 및 방법에 관한 것으로, 주어진 채널 행렬에서 특정 순열에 따라서 열벡터들을 재배열하고 변형된 수신 벡터를 산출하고 병렬 판정 궤환 등화(HDFE) 방법으로 개의 후보 심벌 벡터를 구하는 단계; 구해진 후보 심벌 벡터들 중에서 한 개의 후보 심벌 벡터를 선택하여 해당하는 비트들 중 K개 비트를 산출하는 단계; 변형된 병렬 판정 궤환 등화(MHDFE) 방법으로 상기 산출된 개의 비트들에 대하여 반전된 비트들에 해당하는 개의 후보 심벌 벡터를 구하는 단계; 그리고 상기 구해진 심벌 벡터들(
C +
J) 에 대하여 각 원소들의 위치를 채널 행렬에 적용하였던 순열의 역으로 재배열하는 단계를 포함한다.
다중 안테나 기술, 연판정 (soft decision) 정보, 로그 우도 비 (LLR;log-likelihood ratio), V-BLAST (Vertical Bell labs LAyered Space-Time architecture)

32. 发明公开

KR1020080075958A 광대역 무선 접속 통신 시스템에서 간섭 제거 장치 및 방법 有权
标题翻译：波兰无线接入通信系统干扰消除的装置及方法
公开(公告)号：KR1020080075958A
公开(公告)日：2008-08-20
申请号：KR1020070015198
申请日：2007-02-14
申请人： 삼성전자주식회사
发明人： 조훼이치앙 , 박정순 , 박민철 , 임종한
IPC分类号： H04B7/26
CPC分类号： H04L1/0631 , H04L5/0007 , H04L5/003 , H04L5/0048 , H04L5/0053 , H04L25/0204 , H04B1/7107
摘要： An apparatus and a method for interference cancellation in a BWA(Broadband Wireless Access) communication system are provided to cancel inter-cell interference and improve the performance of estimation by using an STC(Space-Time Coding) mode MIMO(Multiple Input Multiple Output) channel estimation technique in a BWA communication system. A receiver for executing an interference cancellation function in a BWA communication system comprises a wireless communication module, a preamble correlation measurement part(330), a data realignment part(320), an MMSE(Minimum Mean Square Error) weight vector operation part(340), and an STC decoding/merging part(352). The wireless communication module receives a signal from an Rx antenna. The preamble correlation measurement part measures a preamble correlation coefficient from the preamble of the received signal. The data realignment part determines a block size to segment the received signal from the preamble correlation coefficient, segments the received signal according to the determined block size, and realigns the segmented signals. The MMSE weight vector operation part executes cross correlation for the signals outputted from the data realignment part, realigns the cross correlation results, executes auto correlation for them, calculates an MMSE weight vector, and interpolates the MMSE weight vector. The STC decoding/merging part detects desired signals from the signals outputted from the MMSE weight vector operation part and merges them.
摘要翻译：提供了一种用于BWA（宽带无线接入）通信系统中的干扰消除的装置和方法，以通过使用STC（空时编码）模式MIMO（多输入多输出）来消除小区间干扰并提高估计性能，信道估计技术在BWA通信系统中。用于在BWA通信系统中执行干扰消除功能的接收机包括无线通信模块，前同步码相关测量部分（330），数据重新匹配部分（320），MMSE（最小均方误差）权重向量运算部分）和STC解码/合并部（352）。无线通信模块从Rx天线接收信号。前导码相关测量部分根据接收信号的前导码来测量前导码相关系数。数据重排部分确定块大小以从前导相关系数分段接收的信号，根据所确定的块大小对接收的信号进行分段，并重新分配分段的信号。 MMSE权重向量运算部对从数据重排部输出的信号进行互相关，重新对齐互相关结果，对它们执行自相关，计算MMSE权重向量，并内插MMSE权重向量。 STC解码/合并部分从MMSE权重向量操作部分输出的信号中检测所需的信号并合并它们。

33. 发明公开

KR1020080072679A 공간적으로 상관된 채널을 위한 선형 프리코딩 有权
标题翻译：用于空间相关通道的线性预测
公开(公告)号：KR1020080072679A
公开(公告)日：2008-08-06
申请号：KR1020087012735
申请日：2006-10-27
申请人： 퀄컴 인코포레이티드
发明人： 왕지빙 , 바리아크그웬도린디 , 고로코브알렉세이 , 삼파스헤만스 , 카도스테이머
IPC分类号： H04L12/28 , H04B7/26 , H04W24/02 , H04B1/40
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/0639 , H04L1/0019 , H04L1/0026 , H04L1/0035 , H04L1/0073 , H04L1/0631 , H04L5/0023 , H04L25/0204 , H04L25/021 , H04L25/0248 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04L2025/03808 , H04W52/42 , H04W24/02
摘要： Systems and methodologies are described that facilitate estimating transmit covariance from evaluation of a channel (e.g., forward link channel, reverse link channel,...) to be utilized in linear precoding for multiple-input multiple-output (MIMO) wireless communication systems. Predefined codebooks that include any number of precoding matrices may be modified based upon transmit covariance estimations to yield improved precoding performance. Further, channel related feedback may be generated and analyzed by utilizing the modified codebooks.
摘要翻译：描述了有助于从用于多输入多输出（MIMO）无线通信系统的线性预编码中使用的信道估计（例如，前向链路信道，反向链路信道，...）估计发射协方差的系统和方法。可以基于发射协方差估计来修改包括任何数量的预编码矩阵的预定码本，以产生改进的预编码性能。此外，可以通过利用修改的码本生成和分析与频道相关的反馈。

34. 发明公开

KR1020080066319A 다중 안테나 이용하는 이동 통신 시스템에서의 제어채널운용 방법 및 장치 有权
标题翻译：在多输入多输出系统中操作控制通道的方法和装置
公开(公告)号：KR1020080066319A
公开(公告)日：2008-07-16
申请号：KR1020070003579
申请日：2007-01-12
申请人： 삼성전자주식회사
发明人： 한진규 , 권환준 , 김동희 , 유재천 , 임연주
IPC分类号： H04B7/04
CPC分类号： H04B7/0456 , H04B7/0617 , H04B7/0669 , H04L1/0625 , H04L5/0051 , H04L1/0631
摘要： A method and a system for operating control channels in a mobile communication system which uses multiple antennas are provided to achieve capacity improvement and efficient resource management by forwarding precoding information or various types of pilot pattern information through shared control channel messages. When a common pilot is used(300), it is judged whether a current mode is an MCW(Multi CodeWord) MIMO(Multiple Input Multiple Output) mode(310). In the MCW mode which uses the common pilot and uses knockdown precoding(320), a specific knockdown precoding method is selected and PFs(Packet Formats) of the MCW MIMO are determined(322). It is determined that an MCW FLAM(Forward Link Assignment Message) is used(324). A mother matrix index is recorded in a pilot/MIMO field(326). A rank is reflected and a layer-classified PF is recorded in a PF field. Other MCW-FLAM fields are recorded(328). In the MCW MIMO mode which uses the common pilot and uses ready-made precoding, a specific ready-made precoding method is selected and PFs of the MCW MIMO are determined(342). It is determined that an MCW FLAM is used(342). A precoding matrix index is recorded in the pilot/MIMO field(346). A rank is reflected and a layer-classified PF is recorded in the PF field. Other MCW-FLAM fields are recorded(348).
摘要翻译：提供一种用于在使用多个天线的移动通信系统中操作控制信道的方法和系统，以通过共享控制信道消息转发预编码信息或各种类型的导频模式信息来实现容量改进和有效的资源管理。当使用公共导频（300）时，判断当前模式是MCW（Multi CodeWord）MIMO（多输入多输出）模式（310）。在使用公共导频并使用击倒预编码（320）的MCW模式中，选择特定的击倒预编码方法，并确定MCW MIMO的PF（分组格式）（322）。确定使用MCW FLAM（前向链路分配消息）（324）。在导频/ MIMO场中记录母矩阵索引（326）。反映了等级，并且在PF字段中记录了层次分类的PF。录制其他MCW-FLAM字段（328）。在使用公共导频并使用现成预编码的MCW MIMO模式中，选择特定的现成预编码方法，并确定MCW MIMO的PF（342）。确定使用MCW FLAM（342）。预编码矩阵索引记录在导频/ MIMO字段（346）中。反映了等级，并且在PF字段中记录了层次分类的PF。录制其他MCW-FLAM字段（348）。

35. 发明公开

KR1020080036220A 적어도 하나의 안테나, 적어도 하나의 채널, 및 공동 필터가중치 및 ＣＩＲ 추정을 갖는 공동 시공간 최적 필터 无效
标题翻译：具有至少一个天线，至少一个通道的联合空时最佳滤波器（JSTOF）和接头滤波器重量和CIR估计
公开(公告)号：KR1020080036220A
公开(公告)日：2008-04-25
申请号：KR1020087006285
申请日：2006-05-25
申请人： 블랙베리 리미티드
发明人： 우후안 , 시몬스신 , 케멘크지졸탄
IPC分类号： H04B7/02 , H04B1/16 , H04B1/10
CPC分类号： H04L25/0244 , H04L1/0631 , H04L25/0212 , H04L25/0242 , H04L25/0248 , H04L2025/03535
摘要： A mobile wireless communications device may include a portable housing, at least one virtual antenna carried by the portable housing, and a space-time filter circuit carried by the portable housing for filtering a communications signal received by the at least one virtual antenna by jointly estimating space-time filter weights and at least one channel impulse response (CIR). The mobile wireless communications device may further include a matched filter circuit carried by the portable housing downstream from the space-time filter circuit and having a filter response that is provided by a channel impulse response estimation from the space-time filter circuit.
摘要翻译：移动无线通信设备可以包括便携式外壳，由便携式外壳承载的至少一个虚拟天线以及由便携式外壳承载的空时滤波器电路，用于通过联合估计来过滤由至少一个虚拟天线接收的通信信号空时滤波器权重和至少一个信道脉冲响应（CIR）。移动无线通信设备还可以包括由空时滤波器电路下游的便携式外壳承载的匹配滤波器电路，并具有由来自时空滤波器电路的信道脉冲响应估计提供的滤波器响应。

36. 发明公开

KR1020080036219A 촐레스키 및 고유값 분해를 사용한 공동 시공간 최적 필터 无效
标题翻译：联合空间最佳过滤器（JSTOF）使用巧克力和特征值分解
公开(公告)号：KR1020080036219A
公开(公告)日：2008-04-25
申请号：KR1020087006282
申请日：2006-08-14
申请人： 블랙베리 리미티드
发明人： 우후안 , 시몬스신 , 케멘크지졸탄
IPC分类号： H04B7/02 , H04B1/16
CPC分类号： H04L1/0631 , H04L25/0244 , H04L25/0246 , H04L25/0248 , H04L25/03178
摘要： A filter for reducing co-channel interference within a communications receiver may include a multi-channel, space-time filter circuit that filters n signal parts that have been split from a communications signal by jointly estimating space-time filter weights and multi-channel impulse responses (CIRs) based upon Cholesky and eigenvalue decompositions. The filter may further include a multi-channel, matched filter circuit that receives multi-channel signals from the multi-channel, space-time filter circuit and has a filter response that is provided by a channel impulse response estimation from the space-time filter circuit.
摘要翻译：用于减少通信接收机内的同信道干扰的滤波器可以包括多信道空时滤波器电路，其通过联合估计空时滤波器权重和多信道脉冲来对通信信号分离的n个信号部分进行滤波响应（CIR）基于Cholesky和特征值分解。滤波器还可以包括多信道匹配滤波器电路，其从多信道时空滤波器电路接收多信道信号，并且具有由来自空时滤波器的信道脉冲响应估计提供的滤波器响应电路。

37. 发明公开

KR1020070106784A 다중 확산 코드를 사용하는 단순 블록의 시공간 송신다이버시티 시스템 有权
标题翻译：使用多个扩展代码的简单块空间时间传输多样性
公开(公告)号：KR1020070106784A
公开(公告)日：2007-11-05
申请号：KR1020077021548
申请日：2001-12-05
申请人： 인터디지탈 테크날러지 코포레이션
发明人： 김영록 , 제이라아리엘라
IPC分类号： H04B7/02 , H04Q11/06
CPC分类号： H04B1/707 , H04B7/0697 , H04L1/0618 , H04L1/0631 , H04L25/0202 , H04L25/03866
摘要： The present invention is a system and method for use in a CDMA communication system including a plurality of base stations and auser equipment (UE), each for communicating with each other. The base station has a transmitter which includes a first and second antenna for transmitting a data field of symbols. The first spreading device spreads the first data field using a first channelization code and the second spreading device spreads the second data field using a second channelization code, each channelization code being uniquely associated with one of the first and second antennas. The UE has a receiver for receiving a signal including the first and second spread data fields. The UE includes a joint detection device for detecting the symbols of the first and second data fields using the first and second channelization codes and a decoder for decoding the detected data fields to generate a single data field of symbols.
摘要翻译：本发明是一种在包括多个基站和用户设备（UE）的CDMA通信系统中使用的系统和方法，每个基站和用户设备彼此进行通信。基站具有包括用于发送符号数据字段的第一和第二天线的发射机。第一扩展装置使用第一信道化码扩展第一数据字段，并且第二扩展装置使用第二信道化码扩展第二数据字段，每个信道化码与第一和第二天线之一唯一相关。 UE具有用于接收包括第一和第二扩展数据字段的信号的接收器。 UE包括用于使用第一和第二信道化码检测第一和第二数据字段的符号的联合检测装置，以及用于对检测到的数据字段进行解码以产生符号的单个数据字段的解码器。

38. 发明公开

KR1020070016504A 다중 안테나 시스템에서 공간 멀티플랙싱 방식의 검출 장치및 방법 有权
标题翻译：用于检测MIMO系统中的空间多路复用的装置和方法
公开(公告)号：KR1020070016504A
公开(公告)日：2007-02-08
申请号：KR1020050071239
申请日：2005-08-04
申请人： 삼성전자주식회사
发明人： 황근철 , 최숭윤 , 김재권 , 유철우
IPC分类号： H04B7/06
CPC分类号： H04B7/0697 , H04L1/0631 , H04L25/0204
摘要： 다중안테나 시스템에서 공간 멀티플랙싱(Spatial Multiplexing) 방식의 검출 장치 및 방법에 관한 것으로서, 수신 신호의 채널을 추정한 후, 상기 추정된 채널들의 채널 벡터의 크기를 이용하여 내림차순으로 정렬하는 과정과, 상기 정렬된 채널에서 채널 상태가 가장 좋은 채널을 널링하여 최소 단위 서브시스템을 생성하는 과정과, 상기 최소 단위 서브시스템에서 MML(Modified Maximum Likelihood)을 수행하여 소정개수의 전송 신호 벡터들을 산출하는 과정과, 상기 소정개수의 전송 신호 벡터들의 유클리드 거리(Euclidean Distance)를 계산하여 최소 유클리드 거리를 갖는 전송 신호 벡터를 선택하는 과정을 포함하여, 수신기가 ML(Maximum Likelehood)에 근접한 성능을 가지며, SIC(Successive Interference Cancellation)수준의 복잡도로 얻을 수 있는 이점이 있다.
최대 우도 수신기, 정렬, MML, 서브시스템

39. 发明公开

KR1020060128076A 공간/코드블록코딩 송신 다이버시티 장치 및 그 방법, 그를 이용한 ＣＤＭＡ다이버시티 송신기와, 그에 따른 ＣＤＭＡ이동국 수신기 失效
标题翻译：用于传输多样性的空间码块编码和扩展的方法，使用它的CDMA多样性发射机，根据它们的CDMA移动站接收机
公开(公告)号：KR1020060128076A
公开(公告)日：2006-12-14
申请号：KR1020050048940
申请日：2005-06-08
申请人： 한국전자통신연구원
发明人： 김일규 , 김영훈 , 방승찬 , 정찬복 , 남상우
IPC分类号： H04J13/12 , H04B7/06 , H04B1/7097
CPC分类号： H04L1/0631 , H04B1/707 , H04J13/12 , H04L1/0643
摘要： An apparatus and a method for space/code block coding and spreading for a transmit diversity, a CDMA diversity transmitter using the same, and a corresponding CDMA mobile station receiver are provided to enhance system performance in a radio channel environment in which a Doppler effect exists. An SCBC(Space/Code Block Coding) encoder(501) generates a certain number of different transmission data with respect to a plurality of modulation symbols inputted during a single modulation symbol interval. Ith and kth orthogonal code generators(502a,502b) generate orthogonal codes. Multipliers(503a-503d) spread each transmission data generated by the SCBC encoder(501) by using the orthogonal codes. Adders(504a,504b) add the spread transmission data to allow transmit diversity to be performed in a single modulation symbol interval.
摘要翻译：提供用于发射分集的空间/码块编码和扩展的装置和方法，使用其的CDMA分集发射机和相应的CDMA移动台接收机，以增强其中存在多普勒效应的无线电信道环境中的系统性能。 SCBC（空格/码块编码）编码器（501）针对在单个调制符号间隔期间输入的多个调制符号生成一定数量的不同的发送数据。第I和第k个正交码发生器（502a，502b）产生正交码。乘法器（503a-503d）通过使用正交码扩展由SCBC编码器（501）生成的每个传输数据。加法器（504a，504b）将扩展的发送数据相加，以允许在单个调制符号间隔中执行发送分集。

40. 发明公开

KR1020060117740A 다중 안테나 시스템의 코딩 및 디코딩 방법 有权
标题翻译：多输入多输出系统中编码和解码的方法
公开(公告)号：KR1020060117740A
公开(公告)日：2006-11-17
申请号：KR1020050040245
申请日：2005-05-13
申请人： 에스케이텔레콤 주식회사
发明人： 이홍우 , 정원석 , 이명성 , 이주식 , 박용길 , 김동우
IPC分类号： H04B7/04 , H04L1/02 , H04L27/32
CPC分类号： H04L1/0656 , H04B7/04 , H04L1/0625 , H04L1/0631
摘要： A coding and decoding method for a multi-antenna system are provided to compose a uniform vrSTBC based on the V-BLAST having an identical composition in a time axis and recompose the vrSTBC based on the D-BLAST, thereby avoiding a very large PMEPR(Peak-to-Mean Envelop Power Ratio) and obtaining maximum diversity gain. A coding and decoding method for a multi-antenna system comprises the following steps of: composing transmission antennas as at least one group(S102); coding a vrSTBC(variable rate Space Time Block Code) based on the V-BLAST(Vertical-Bell Labs Layered Space Time) used in each group(S104); equally coding the vrSTBC so as to have an identical composition in a time axis(S106); coding the equally coded vrSTBC by a vrSTBC based on the D-BLAST(Diagonal-Bell Labs Layered Space Time)(S108); and enabling the vrSTBC based on the D-BLAST to be transmitted to a receiving terminal and be decoded(S110,S112).
摘要翻译：提供了一种用于多天线系统的编码和解码方法，以便在时间轴上组合基于具有相同组成的V-BLAST的均匀vrSTBC，并且基于D-BLAST重新构建vrSTBC，由此避免非常大的PMEPR（峰值平均包络功率比），并获得最大分集增益。多天线系统的编码和解码方法包括以下步骤：将发送天线组成至少一个组（S102）; 基于每组中使用的V-BLAST（垂直贝尔实验室分层空间时间）编码vrSTBC（可变速率空时块代码）（S104）; 对vrSTBC进行同等编码，使其在时间轴上具有相同的组合（S106）; 通过基于D-BLAST（对角贝尔实验室分层空间时间）的vrSTBC编码等式编码的vrSTBC（S108）; 并且使得基于D-BLAST的vrSTBC被发送到接收终端并被解码（S110，S112）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式