公开(公告)号：EP2293483A2

公开(公告)日：2011-03-09

申请号：EP10174589.1

申请日：2010-08-31

Applicant: STMicroelectronics S.r.l. ,  Politecnico Di Milano

Inventor： Siti, Massimiliano ,  Cupaiuolo, Teo ,  Tomasoni, Alessandro ,  Bellini, Sandro

IPC: H04L1/06 ,  H04L25/02

CPC classification number: H04L25/0202 ,  H04L1/06 ,  H04L25/03184 ,  H04L25/03267 ,  H04L25/03286 ,  H04L25/03318 ,  H04L25/03891 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: An embodiment of a method and device for detecting a signal and generating bit soft-output of a multiple-input multiple-output system is provided.
The device includes at least one channel estimates pre-processing unit, one received vector processing and one detection and soft-output generation unit.
The pre-processing unit calculates multiple QR Decompositions of the input channel estimation matrix.
The detection and soft-output generation unit computes near optimal bit soft output information with a deterministic complexity and latency.
It may implement a reduced complexity search method.
Globally, embodiments of the invention may allow achieving low complexity, high data rate, scalability in terms of the dimension of the MIMO system and flexibility versus the supported modulation order, all potentially key factors for most MIMO wireless transmission applications.

Abstract translation: 提供了用于检测的信号，并且生成位的多输入多输出系统的软输出的方法和装置的实施例。 该装置包括至少一个信道估计前处理部，一个接收到的矢量处理和一个检测和软输出产生单元。 预处理单元计算输入信道估计矩阵的多个QR分解。 检测和软输出生成单元计算与附近确定性的复杂性和延迟最佳比特软输出信息。 它可以实现降低复杂度的搜索方法。 在全球范围内，本发明的实施例可以允许在MIMO系统和灵活性相对于支持的调制顺序的尺寸方面实现低复杂度，高数据速率，可扩展性，所有潜在的关键因素为最MIMO无线传输应用。

公开(公告)号：EP1971063A1

公开(公告)日：2008-09-17

申请号：EP08152722.8

申请日：2008-03-13

Applicant: STMicroelectronics S.r.l. ,  Politecnico di Milano

Inventor： Siti, Massimiliano ,  Tomasoni, Alessandro ,  Ferrari, Marco Pietro ,  Bellini, Sandro ,  Volpatti, Oscar

IPC: H04L1/00 ,  H04L25/03

CPC classification number: H04L25/03292 ,  H04B7/0413 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0064 ,  H04L1/0656 ,  H04L25/03331

Abstract: An embodiment of an arrangement for detecting sequences of digitally modulated symbols from multiple sources. The arrangement identifies a suitable set of candidate values for at least one transmitted sequence of symbols and determines for each candidate value a set of sequences of transmitted symbols. The arrangement estimates at least one further set of sequence of transmitted symbols, calculates a metric for each sequence of transmitted symbols and selects the sequence that maximizes the metric. At the end, a-posteriori bit soft output information for the selected sequence is calculated from the metrics for said sequences. Generally, these calculations are base on the information coming from a channel state information matrix and a-priori information on said modulated symbols from a second module, such as a forward error correction code decoder.

Abstract translation: 用于检测来自多个源的数字调制符号序列的装置的实施例。 该装置为至少一个发送的符号序列识别适当的一组候选值，并且为每个候选值确定发送符号的一组序列。 该装置估计至少一组另外的发送符号序列集合，计算发送符号的每个序列的度量，并选择使度量最大化的序列。 最后，从所述序列的度量计算所选序列的后验位软输出信息。 通常，这些计算基于来自信道状态信息矩阵的信息和来自诸如前向纠错码解码器的第二模块的关于所述调制符号的先验信息。

公开(公告)号：EP1971063B1

公开(公告)日：2018-10-10

申请号：EP08152722.8

申请日：2008-03-13

Applicant: STMicroelectronics S.r.l.

Inventor： Siti, Massimiliano ,  Tomasoni, Alessandro ,  Ferrari, Marco Pietro ,  Bellini, Sandro ,  Volpatti, Oscar

IPC: H04L1/00 ,  H04L25/03

CPC classification number: H04L25/03292 ,  H04B7/0413 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0064 ,  H04L1/0656 ,  H04L25/03331

Abstract: An embodiment of an arrangement for detecting sequences of digitally modulated symbols from multiple sources. The arrangement identifies a suitable set of candidate values for at least one transmitted sequence of symbols and determines for each candidate value a set of sequences of transmitted symbols. The arrangement estimates at least one further set of sequence of transmitted symbols, calculates a metric for each sequence of transmitted symbols and selects the sequence that maximizes the metric. At the end, a-posteriori bit soft output information for the selected sequence is calculated from the metrics for said sequences. Generally, these calculations are base on the information coming from a channel state information matrix and a-priori information on said modulated symbols from a second module, such as a forward error correction code decoder.

公开(公告)号：EP1746756A1

公开(公告)日：2007-01-24

申请号：EP05425526.0

申请日：2005-07-21

Applicant: STMicroelectronics S.r.l.

Inventor： Osnato, Fabio ,  Gatti, Devis ,  Tomasoni, Alessandro

IPC: H04L1/06 ,  H04L27/26

CPC classification number: H04L1/0066 ,  H04L1/005 ,  H04L1/0618 ,  H04L27/2601

Abstract: A system for the transmission of signals comprises a transmitter (10, 16, 22, 24, 26, 28, 30) configured for transmitting signals (x t ), encoded with a mapping (24, 28), with different and separable configurations in the real part and the imaginary part of the signal. These may be, for example, signals (x t ) encoded according to a Gray mapping, signals (x t ) encoded with two QAM mappings (24, 28), encoded signals (x t ) transmitted on a selective Multiple-Input/Multiple-Output (MIMO) channel and/or encoded signals (x t ) multiplexed with an Orthogonal-Frequency-Division-Multiplexing (OFDM) technique. The corresponding receiver (14, 18, 20, 34, 36, 38, 40, 42, 44) is configured for decoding in a distinct way the real part ( R ( X t )) and the imaginary part ( I ( x t )) of said signals and typically comprises a filter for subjecting said encoded signals (x t ) to a Wiener filtering ( x̂ t ) and a Minimum-Mean-Square-Error (MMSE) detector (38) configured for minimizing the mean-square error between said encoded signals (x t ) and the result of said Wiener filtering ( x̂ t ). The receiver can comprise a soft decoder (40) for performing a soft estimation (40) of the signals transmitted by each of said antennas of said plurality (T), and cancelling, using the results of said soft estimation (40), the interference produced on the signals transmitted from each of said antennas of said plurality by the signals transmitted from the other antennas of said plurality.

Abstract translation: 一种用于信号的传输系统包括一个发射机（10，16，22，24，26，28，30）被配置用于传送信号（x t）具有映射（24,28）编码，并在不同的和可分离的构 realpart和信号的虚数部分。 这些可以是，例如具有两个QAM映射（24,28），经编码的信号上的选择性多输入/多输出（XT）反式mitted编码信号（x t）编码的雅丁到格雷映射，信号（x t）（ MIMO）信道和/或与正交频分复用（OFDM）技术多路复用编码信号（x t）。 相应的接收器（14，18，20，34，36，38，40，42，44）被配置用于在不同的方式实部（R（X t））和虚数部分解码（I（XT）） 被配置用于在所述经编码最小化均方误差，所述信号的和通常包括一个过滤器，用于对所述编码信号（x t）的维纳滤波（XT）和最小均方误差（MMSE）检测器（38） 信号（x t）和所述维纳滤波（XT）的结果。 所述接收机可以包括一个软解码器（40），用于执行由每个所述多个（T），和消除的说天线的mitted信号反式的软估计（40），使用所述软估计的结果（40），所述干扰 从每个所述多个所述天线中的通过从所述多个其他天线的信号反式mitted信号反mitted产生。