公开(公告)号：EP1213852A1

公开(公告)日：2002-06-12

申请号：EP01936891.9

申请日：2001-06-07

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： NAGAYASU, Takayuki, c/o Mitsubishi Denki KK

IPC分类号： H04B7/005

CPC分类号： H04L25/06 ,  H04L1/20 ,  H04L25/03318 ,  H04L2025/03547

摘要： In a radio communication receiving apparatus according to the present invention, a soft decision section 14 outputs a soft decision value as a result of demodulation of a received signal, and an error correction section 15 conducts error correction on the soft decision value. Furthermore, in the soft decision section 14, an equalizer 21 outputs a soft decision value and a hard decision value based on the received signal, and a decision value combining section 22 combines the hard decision value with the hard decision value according to a predetermined method, and outputs a decision value after the combining as a soft decision value.

摘要翻译： 在根据本发明的无线电通信接收装置中，软判决部14输出作为接收信号的解调结果的软判决值，误差校正部15对软判定值进行纠错。 此外，在软判决部分14中，均衡器21基于接收信号输出软判决值和硬判定值，并且判定值组合部分22根据预定方法将硬决策值与硬决策值组合 ，并将合成后的判定值作为软决策值输出。

公开(公告)号：EP0693243B1

公开(公告)日：2001-01-03

申请号：EP95905745.6

申请日：1995-02-01

申请人： Koninklijke Philips Electronics N.V.

发明人： HULYALKAR, Samir

IPC分类号： H04N7/00

CPC分类号： H04N5/4401 ,  H04L25/03318 ,  H04L2025/03382 ,  H04L2025/03496 ,  H04N5/211

公开(公告)号：EP0682414A4

公开(公告)日：1997-02-26

申请号：EP94909296

申请日：1994-03-10

申请人： OKI ELECTRIC IND CO LTD

发明人： ONO SHIGERU ,  HAYASHI HIROSHI ,  TANAKA TOMOKO ,  KONDOH NORIAKI

IPC分类号： H03M13/39 ,  H03M13/41 ,  H03M13/45 ,  H04L25/03 ,  H04L25/30 ,  H03M13/12 ,  H04L27/00

CPC分类号： H04L25/03318 ,  H03M13/23 ,  H03M13/39 ,  H03M13/41 ,  H03M13/6331

摘要： Metric calculating means calculates a first metric of a transmitted symbol sequence estimated by an adaptive equalizer. Then it calculates a second metric of a symbol sequence in which the polarity of a symbol in a position where the soft judgment value is to be determined in the transmitted symbol sequence is inverted. A subtraction unit (9) subtracts the second metric from the first metric. Thereafter, a multiplication unit (10) multiplies the result of the subtraction by the symbol in the position where the soft judgment value is to be determined in the transmitted symbol sequence, thus outputting the soft judgment value.

公开(公告)号：EP0495006A4

公开(公告)日：1992-10-07

申请号：EP90916969

申请日：1990-09-24

申请人： MOTOROLA, INC.

发明人： LABEDZ, GERALD, PAUL ,  BORTH, DAVID, EDWARD ,  RASKY, PHILLIP, DAVID

IPC分类号： H04L25/08 ,  H04L25/03 ,  H04L27/00 ,  H04L27/01 ,  H04B3/06

CPC分类号： H04L25/03318

公开(公告)号：EP2858285B1

公开(公告)日：2018-01-10

申请号：EP13187322.6

申请日：2013-10-04

申请人： Huawei Technologies Co., Ltd.

发明人： Rusek, Fredrik

IPC分类号： H04L1/00 ,  H04L25/03

CPC分类号： H04L1/005 ,  H04L25/03171 ,  H04L25/03286 ,  H04L25/03318

摘要： The present invention relates to method for detection of symbols, comprising: receiving at least one communication signal y transmitted over a radio channel H, and receiving a priori LLRs of said channel inputs x; computing soft symbol estimates µ and variance D of said channel inputs x based on LLRs of said channel inputs x; filtering and interference cancelling said received signal y by using a first filter and filtered soft symbol estimates µ so as to obtain a filtered and interference cancelled received signal; estimating MSE matrix B of said filtered and interference cancelled received signal; computing an optimal matrix G opt for a BCJR algorithm based on said MSE estimate B ; further filtering said filtered and interference cancelled received signal by using a second filter so as to obtain an input signal r to the BCJR algorithm; and feeding said input signal r into the BCJR algorithm.

公开(公告)号：EP2273743A3

公开(公告)日：2017-06-21

申请号：EP10011621.9

申请日：2005-12-22

申请人： Qualcomm Incorporated

发明人： Julian, David Jonathan

IPC分类号： H04L25/03 ,  H04L1/00 ,  H04L25/02

CPC分类号： H04L25/03 ,  H04L1/0045 ,  H04L25/0222 ,  H04L25/0228 ,  H04L25/03184 ,  H04L25/03318

摘要： Techniques for efficiently choosing a desired decoder in the presence of varying Doppler and/or mobility are disclosed. In one aspect, a method for selecting a filter for decoding forward-link (FL) information in a wireless communication network comprises the acts of decoding reverse-link (RL) information by a plurality of decoders, each being optimized based on a different parameter, and comparing a plurality of outputs from the decoders, based on a metric, to determine a desired decoder or parameter for reporting to an access terminal.

摘要翻译： 公开了在存在变化的多普勒和/或移动性的情况下有效地选择期望的解码器的技术。 一方面，一种用于在无线通信网络中选择用于解码前向链路（FL）信息的滤波器的方法包括通过多个解码器解码反向链路（RL）信息的动作，每个解码器基于不同的参数进行优化 ，并且基于度量来比较来自解码器的多个输出，以确定用于向接入终端报告的期望解码器或参数。

公开(公告)号：EP2582078A4

公开(公告)日：2017-06-14

申请号：EP11792131

申请日：2011-06-06

申请人： PANASONIC CORP

发明人： YOMO HIDEKUNI ,  KOBAYASHI KIYOTAKA

IPC分类号： H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L25/02 ,  H04L25/03

CPC分类号： H04L25/03318 ,  H04B7/0697 ,  H04B7/086 ,  H04L25/0204 ,  H04L25/0232 ,  H04L25/03171 ,  H04L25/03891 ,  H04L25/03955 ,  H04L2025/03426

摘要： A MIMO receiving apparatus that can demodulate a spatially multiplexed signal without using any division operation requiring a large quantity of operation resources. In the MIMO receiving apparatus, stream separation section (105) separates a spatially multiplexed signal into a plurality of streams based on numerator submatrix A. Numerator submatrix A is determined according to channel matrix H and a canceller scheme and corresponds to a numerator of stream separation matrix S that equalizes the phase and amplitude of the spatially multiplexed signal. Denominator part calculation section (108) calculates a denominator (denominator coefficient) of stream separation matrix S and correction section (117) corrects a threshold determined according to a modulation scheme of the spatially multiplexed signal using the denominator (denominator coefficient) of stream separation matrix S. Demapping sections (109-1 to 109-3) calculate likelihoods of the plurality of streams through a threshold decision using the corrected threshold.

摘要翻译： 本发明提供一种MIMO接收装置，能够解调空间复用信号，而无需使用任何需要大量操作资源的分割操作。 在MIMO接收装置中，流分离单元（105）基于分子子矩阵A将空间复用信号分离为多个流。分子子矩阵A根据信道矩阵H和消除器方式来决定，与流分离的分子对应 矩阵S，其均衡空间多路复用信号的相位和幅度。 分母部分计算部分108计算流分离矩阵S的分母（分母系数），并且校正部分117使用流分离矩阵的分母（分母系数）校正根据空间复用信号的调制方案确定的阈值 S.解映射部分（109-1至109-3）使用校正的阈值通过阈值判定来计算多个流的可能性。

公开(公告)号：EP3145138A1

公开(公告)日：2017-03-22

申请号：EP15810605.4

申请日：2015-05-25

申请人： Huawei Technologies Co. Ltd.

发明人： WANG, Hao

IPC分类号： H04L25/02

CPC分类号： H04L5/0073 ,  H04J11/005 ,  H04L5/0048 ,  H04L5/006 ,  H04L25/022 ,  H04L25/0242 ,  H04L25/03197 ,  H04L25/03292 ,  H04L25/03305 ,  H04L25/03318

摘要： A data processing method and apparatus for an ML receiver relates to the field of communications technologies, and can resolve a problem that parameters required by an ML receiver cannot be accurately estimated and an interference cancellation capability of the ML receiver is reduced. The method in the present invention includes: performing, by an ML receiver, channel estimation on a serving cell and an interference cell by using signals received at reference signal locations, to obtain channel estimation matrix; calculating first metrics for received signals and the channel estimation matrix, and determining survivor paths of the serving cell according to the first metrics; calculating second metrics for the received signals and the channel estimation matrix according to the determined survivor paths of the serving cell and all values of an unknown parameter, and determining survivor paths of the interference cell according to the second metrics; determining final survivor paths according to the survivor paths of the interference cell; and calculating an LLR according to the final survivor paths. The present invention is applicable to an ML receiver.

公开(公告)号：EP3005635B1

公开(公告)日：2017-03-22

申请号：EP14730446.3

申请日：2014-05-23

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： PAKER, Özgün

IPC分类号： H04L27/34 ,  H04L25/03

CPC分类号： H04L25/03242 ,  H03M13/258 ,  H04L25/03286 ,  H04L25/03318 ,  H04L27/3416 ,  H04L2025/03426 ,  H04L2025/03611

摘要： A method performed by a sphere decoder based turbo equalizer for reducing interference of a parent QAM symbol from a received signal is provide. The method comprises assorting in a first vector QAM symbols on a particular tree level based on first distance properties, assorting in a second vector QAM symbols on the particular tree level based on second distance properties, selecting the QAM symbol with the minimum distance property in the second vector, identifying the selected QAM symbol in the first vector assorted by distance properties, pruning the first vector by eliminating all QAM symbols having a larger distance property compared to the selected QAM symbol.

摘要翻译： 用于降低从接收信号中一个父QAM符号的干扰由球形解码器基于涡轮均衡器执行的方法是提供。 该方法包括分拣在基于第一距离性质上的特定树级别的第一矢量QAM符号，在基于第二距离性质上的特定树电平的第二矢量QAM符号分拣，与在最小距离属性选择QAM符号 第二矢量，确定在由距离性质什锦第一矢量选定QAM符号，通过消除具有较大距离属性相比于所选择的QAM符号的所有QAM符号修剪第一向量。

公开(公告)号：EP2962413A4

公开(公告)日：2016-09-28

申请号：EP14757278

申请日：2014-01-07

申请人： SAMSUNG ELECTRONICS CO LTD

发明人： OK KWANGMAN ,  KANG IN-YUP ,  LI LINBO ,  KALBASI REZA

IPC分类号： H04B15/02 ,  H04J11/00 ,  H04L25/02 ,  H04L25/03 ,  H04L27/01

CPC分类号： H04L27/01 ,  H04J11/005 ,  H04L25/021 ,  H04L25/0256 ,  H04L25/03305 ,  H04L25/03318

摘要： A method of operation of a wireless communication system includes: processing a received signal; calculating filter weights, by a filter weights estimation module, from the received signal; generating a corrected sequence, through a widely linear-single antenna interference cancellation (WL-SAIC) module, by applying the filter weights; calculating a channel estimation concurrently with the corrected sequence; and generating an adjusted data by an output equalizer including applying the channel estimation to the corrected sequence.