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    無線伝送システム及び受信装置
    1.
    发明申请
    無線伝送システム及び受信装置 审中-公开
    无线传输系统和接收设备

    公开(公告)号：WO2016047456A1

    公开(公告)日：2016-03-31

    申请号：PCT/JP2015/075737

    申请日：2015-09-10

    Applicant: 株式会社日立国際電気

    Inventor： 星　大樹 ,  仲田　樹広 ,  伊藤　圭

    IPC: H03M13/45 ,  H03M13/27 ,  H04J11/00

    CPC classification number: H04B7/0413 ,  H03M13/27 ,  H03M13/29 ,  H03M13/6331 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0071 ,  H04L27/2647

    Abstract: 本発明は、誤り訂正符号部において、終端処理が行われず、かつ、フレーム間に跨るインタリーブ処理が用いられた無線伝送装置および無線伝送システムにおいて、ビット情報の欠落を回避した軟推定値を作成し、ターボ等化処理を実現することを目的とする。本発明の無線伝送システムは、送信装置と受信装置を有する無線伝送システムであって、送信装置は誤り訂正符号化手段と、第一のインタリーブ手段と、第二のインタリーブ手段と、デジタル変調する手段を備え、受信装置は受信信号を検波する手段と、デマッパ手段と、第二のデインタリーブ手段と、受信ビット対数尤度比をフレームバッファに記憶する手段と、所定期間のデータを抽出する周波数インタリーバデータ抽出部と、復号部と、硬判定部とを有することを特徴とする。

    Abstract translation: 本发明的目的是在无线传输设备和无线传输系统中创建一个避免比特信息丢失并实现turbo均衡过程的软估计值，其中终端进程不进行纠错 编码单元和帧间交错处理。 该无线传输系统具有发送装置和接收装置，其特征在于，发送装置配备有纠错编码装置，第一交织装置，第二交织装置和数字调制装置，接收装置 配备有用于检测接收信号的装置，解映射装置，第二解交织装置，用于在帧缓冲器中存储接收的比特对数似然比的装置，提取规定周期的数据的频率交织器数据提取单元， 解码单元和硬判定单元。

    SYSTEM AND METHOD FOR RECOVERING CARRIER PHASE IN OPTICAL COMMUNICATIONS
    2.
    发明申请
    SYSTEM AND METHOD FOR RECOVERING CARRIER PHASE IN OPTICAL COMMUNICATIONS 审中-公开
    用于在光通信中恢复载波相位的系统和方法

    公开(公告)号：WO2016035895A1

    公开(公告)日：2016-03-10

    申请号：PCT/JP2015/075276

    申请日：2015-08-31

    Applicant: MITSUBISHI ELECTRIC CORPORATION

    Inventor： AKINO, Toshiaki ,  KOJIMA, Keisuke ,  MILLAR, David

    IPC: H04B10/61

    CPC classification number: H04B10/6165 ,  H04L1/0054 ,  H04L1/0055 ,  H04L1/0057 ,  H04L7/0062 ,  H04L7/0075

    Abstract: The embodiments of the invention provide methods to deal with problems of cycle slips, angular skew, and residual phase noise for high-speed optical communications employing any arbitrary high-order multi-dimensional modulation formats. The embodiments use a slip process analyzer, a skew angle estimator, and a phase noise variance estimator to provide feedforward soft-decision information of a carrier phase recovery (CPE) for more accurate likelihood calculation based on a high-order hidden Markov model (HMM). The log-likelihood calculation can be done jointly in dual polarization with joint Markov state transition. Some embodiments use a kernel filter or a particle filter for log-likelihood calculation.

    Abstract translation: 本发明的实施例提供了处理采用任意高阶多维调制格式的高速光通信的周期滑移，角度偏移和残余相位噪声问题的方法。 实施例使用滑移过程分析器，斜角估计器和相位噪声方差估计器来提供载波相位恢复（CPE）的前馈软判决信息，以用于基于高阶隐马尔可夫模型（HMM）的更准确的似然计算 ）。 对数似然计算可以在具有联合马尔科夫状态转换的双极化中联合进行。 一些实施例使用内核滤波器或粒子滤波器进行对数似然计算。

    FULLY PARALLEL TURBO DECODING
    3.
    发明申请
    FULLY PARALLEL TURBO DECODING 审中-公开
    完全并行涡轮解码

    公开(公告)号：WO2016023762A1

    公开(公告)日：2016-02-18

    申请号：PCT/EP2015/067527

    申请日：2015-07-30

    Applicant: UNIVERSITY OF SOUTHAMPTON

    Inventor： MAUNDER, Robert

    IPC: H03M13/29 ,  H03M13/27

    CPC classification number: H03M13/1575 ,  H03M13/1111 ,  H03M13/2771 ,  H03M13/2789 ,  H03M13/2792 ,  H03M13/2957 ,  H03M13/3761 ,  H03M13/3769 ,  H03M13/45 ,  H03M13/617 ,  H03M13/6505 ,  H03M13/6513 ,  H03M13/6519 ,  H03M13/6525 ,  H03M13/6544 ,  H03M13/6561 ,  H04L1/0052 ,  H04L1/0055 ,  H04L1/0058 ,  H04L1/0071

    Abstract: A detection circuit performs a turbo detection process to recover a frame of data symbols from a received signal, the data symbols of the frame having been effected, during transmission, by a Markov process with the effect that the data symbols of the frame in the received signal are dependent one or more preceding data symbols which can be represented as a trellis having a plurality of trellis stages. The detection circuit comprises a plurality of processing elements, each of the processing elements is associated with one of the trellis stages representing the dependency of the data symbols of the frame according to the Markov process and each of the processing elements is configured to receive one or more soft decision values corresponding to one or more data symbols associated with the trellis stage, and each of one or more of the processing elements is configured, in one clock cycle to receive fixed point data representing a priori forward state metrics a priori backward state metrics, and fixed point data representing a priori soft decision values for the one or more data symbols being detected for the trellis stage. For each of a plurality of clock cycles of the turbo detection process, the detection circuit is configured to process, for each of the processing elements representing the trellis stages, the a priori information for the one or more data symbols being detected for the trellis stage associated with the processing element, and to provide the extrinsic soft decision values corresponding to the one or more data symbols for a next clock cycle of the turbo detection process.

    Abstract translation: 检测电路执行涡轮检测处理，以从接收信号中恢复数据符号的帧，所述帧的数据符号在发送期间通过马尔科夫过程被实现，其结果是接收到的帧的数据符号 信号依赖于一个或多个先前的数据符号，其可以表示为具有多个网格级的网格。 检测电路包括多个处理元件，每个处理元件与代表根据马尔科夫过程的帧的数据符号的相关性的网格级中的一个相关联，并且每个处理元件被配置为接收一个或 对应于与网格级相关联的一个或多个数据符号的更软的判决值，并且一个或多个处理元件中的每一个被配置为在一个时钟周期中接收表示先验前向状态度量的固有点数据，先验后向状态度量 以及表示针对网格级检测到的一个或多个数据符号的先验软判决值的固定点数据。 对于涡轮检测过程的多个时钟周期中的每一个，检测电路被配置为针对表示网格级的每个处理元件处理针对网格级检测到的一个或多个数据符号的先验信息 与所述处理元件相关联，并且为所述涡轮检测处理的下一个时钟周期提供与所述一个或多个数据符号相对应的外在软判决值。

    DEVICES AND METHODS FOR FACILITATING CLOSED-LOOP TRANSMISSION DIVERSITY IN WIRELESS COMMUNICATIONS SYSTEMS
    4.
    发明申请
    DEVICES AND METHODS FOR FACILITATING CLOSED-LOOP TRANSMISSION DIVERSITY IN WIRELESS COMMUNICATIONS SYSTEMS 审中-公开
    在无线通信系统中实现闭环传输多样性的设备和方法

    公开(公告)号：WO2015050997A1

    公开(公告)日：2015-04-09

    申请号：PCT/US2014/058636

    申请日：2014-10-01

    Applicant: QUALCOMM INCORPORATED

    Inventor： CHIZGI, Nate ,  ZHANG, Wei

    IPC: H04B7/06 ,  H04L1/00 ,  H04L1/20

    CPC classification number: H04W24/08 ,  H04B7/0619 ,  H04B7/0654 ,  H04L1/0021 ,  H04L1/0055 ,  H04L1/206

    Abstract: Access terminals are adapted to facilitate closed-loop transmit diversity in wireless communications systems. According to one example, an access terminal can calculate an uplink error rate for even slot indexes and a separate uplink error rate for odd slot indexes in an uplink frame to be transmitted. A respective downlink error rate can be estimated for an in-phase (I) component and a quadrature-phase (Q) component of a downlink transmission. The access terminal may further estimate a phase-related weight that was applied to the downlink transmission based on the downlink error rates and the uplink error rates. Other aspects, embodiments, and features are also included.

    Abstract translation: 接入终端适于促进无线通信系统中的闭环发射分集。 根据一个示例，接入终端可以计算偶数时隙索引的上行链路误码率和要发送的上行链路帧中的奇数时隙索引的单独的上行链路误码率。 可以针对下行链路传输的同相（I）分量和正交相（Q）分量估计相应的下行链路误码率。 接入终端还可以基于下行链路错误率和上行链路错误率来估计应用于下行链路传输的相位相关权重。 还包括其他方面，实施例和特征。

    INTERFERENCE REDUCTION METHOD
    5.
    发明申请
    INTERFERENCE REDUCTION METHOD 审中-公开
    干扰减少方法

    公开(公告)号：WO2013079191A1

    公开(公告)日：2013-06-06

    申请号：PCT/EP2012/004911

    申请日：2012-11-28

    Applicant: CASSIDIAN SAS ,  CNAM - CONSERVATOIRE NATIONAL DES ARTS ET METIERS

    Inventor： MEGE, Philippe ,  MARTINOD, Laurent ,  FETY, Luc ,  PERRIN, Olivier ,  GREGIS, Nicolas

    IPC: H04B7/08

    CPC classification number: H04B7/0851 ,  H04L1/0055

    Abstract: This interference reduction method in a receiver (2) comprising at least two antennas (4, 6), each receiving a signal transmitted through a radio propagation channel, comprises the following steps: - weighting (20) of each of the signals received with a weighting vector associated respectively with a respective antenna of the receiver; - combination (22) of the weighted signals received to obtain a combined received signal; - weighting (24) of a reference signal with another weighting vector; - comparison (26) of the combined received signal and the weighted reference signal to obtain an error; and - determination (28) of the weighting vectors with the help of the maximum a posteriori criterion by maximising the probability of realisation of the said weighting vectors conditionally with the error obtained.

    Abstract translation: 包括至少两个天线（4,6）的接收机（2）中的这种干扰减少方法，每个天线接收通过无线电传播信道发射的信号，包括以下步骤： - 用 分别与接收机的相应天线相关联的加权矢量; - 接收的加权信号的组合（22）以获得组合的接收信号; - 用另一加权矢量加权（24）参考信号; - 组合接收信号和加权参考信号的比较（26）以获得误差; 借助于最大后验标准，通过以所获得的误差有条件地最大化实现所述加权向量的概率来确定（28）加权向量。

    A PRIORI TRAINING IN A MOBILE DTV SYSTEM
    6.
    发明申请
    A PRIORI TRAINING IN A MOBILE DTV SYSTEM 审中-公开
    移动数字电视系统中的优先培训

    公开(公告)号：WO2011162735A1

    公开(公告)日：2011-12-29

    申请号：PCT/US2010/001828

    申请日：2010-06-25

    Applicant: THOMSON LICENSING ,  MARKMAN, Ivonete

    Inventor： MARKMAN, Ivonete

    IPC: H04L1/00 ,  H03M13/39

    CPC classification number: H04N19/65 ,  H03M13/27 ,  H03M13/2732 ,  H03M13/2936 ,  H03M13/2945 ,  H03M13/2957 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0057 ,  H04L1/006 ,  H04L1/0071

    Abstract: An apparatus for decoding digital data includes a processor for recreating a priori training information received with the digital data for provision to a maximum a posteriori (MAP) decoder. The processor detects locations of symbols in the input data stream and regenerates data corresponding to each location. The regenerated data is used by the processor to recreate a priori information suitable to each location of the input data stream location and provides the recreated a priori information to the MAP decoder to aid in the decoding of the digital data. In a preferred implementation, the a priori training data is structured so that after deterministic processing and trellis encoding at the transmitter, it can be regenerated by the processor as a pseudo noise (PN) sequence using a PN sequence generator.

    Abstract translation: 一种用于解码数字数据的装置包括一个处理器，用于重建用数字数据接收的先验训练信息，以供给最大后验（MAP）解码器。 处理器检测输入数据流中符号的位置，并重新产生与每个位置对应的数据。 再生数据被处理器用于重新创建适合于输入数据流位置的每个位置的先验信息，并将重新创建的先验信息提供给MAP解码器，以帮助数字数据的解码。 在优选实现中，先验训练数据被构造为使得在发射机处的确定性处理和网格编码之后，其可以由处理器作为使用PN序列发生器的伪噪声（PN）序列来再生。

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