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    INTERFERENCE REJECTION COMBINING METHOD, DEVICE AND STORAGE MEDIUM
    2.
    发明申请
    INTERFERENCE REJECTION COMBINING METHOD, DEVICE AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20180034532A1

    公开(公告)日：2018-02-01

    申请号：US15551075

    申请日：2015-12-29

    申请人： Sanechips Technology Co., Ltd.

    发明人： Gang WU

    IPC分类号： H04B7/08 ,  H04L25/03 ,  H04L27/26 ,  H04L25/02

    CPC分类号： H04B7/0854 ,  H04B7/08 ,  H04B17/345 ,  H04J11/0036 ,  H04L25/0228 ,  H04L25/0244 ,  H04L25/0246 ,  H04L25/03993 ,  H04L27/26 ,  H04L27/2647

    摘要： Disclosed in an embodiment of the disclosure is an interference rejection combining (IRC) method supporting transmit diversity, in which an N*N interference and noise covariance matrix corresponding to one subcarrier is generated from signals, in a transmit diversity mode, received at cell reference signal (CRS) resource positions via N receiving antennas, where N is greater than or equal to 3; Cholescy decomposition and upper triangular matrix inversion is performed on the N*N interference and noise covariance matrix to obtain an N*N block matrix; the N*N block matrix is expanded to a 2N*2N noise whitening matrix; and the received signals and channel estimation values are whitened according to the noise whitening matrix, and the whitened received signals and channel estimation values used to obtain a minimum mean square error-IRC (MMSE-IRC) processing result. Also disclosed are an IRC device supporting the transmit diversity, and a computer storage medium.

    MULTI-INPUT MULTI-OUTPUT (MIMO) DETECTION SYSTEMS
    4.
    发明申请
    MULTI-INPUT MULTI-OUTPUT (MIMO) DETECTION SYSTEMS 有权
    多输入多输出（MIMO）检测系统

    公开(公告)号：US20160254883A1

    公开(公告)日：2016-09-01

    申请号：US15056986

    申请日：2016-02-29

    申请人： Georgia Tech Research Corporation

    发明人： Xiaoli Ma ,  Qingsong Wen

    IPC分类号： H04L1/20 ,  H04B7/04

    CPC分类号： H04L1/203 ,  H04B7/0413 ,  H04L25/0246

    摘要： Embodiments of the present invention provide efficient greedy LLL algorithms that not only converge faster but also exhibit much lower complexity than the existing greedy LLL variants while similar error performance is maintained. First, a relaxed Lovász condition is designed for searching the candidate set of LLL iterations with column swap operations. This relaxation does not need size reduction operations so that it can save complexity compared to the existing greedy LLL algorithms. Further, a relaxed criterion of the decrease in LLL potential is designed to select the optimal one in the candidate set of LLL iterations, which also exhibits lower complexity than the existing greedy LLL algorithms. Furthermore, simulations show that the inventive algorithm needs less LLL iterations compared to the existing greedy LLL algorithms.

    摘要翻译： 本发明的实施例提供了有效的贪心LLL算法，其不仅收敛速度更快，而且表现出比现有的贪心LLL变体低得多的复杂度，同时维持类似的错误性能。 首先，轻松的Lovász条件旨在通过列交换操作搜索候选组的LLL迭代。 这种放松不需要大小缩小操作，因此与现有的贪心LLL算法相比，可以节省复杂度。 此外，LLL电位降低的放宽标准被设计为在LLL迭代的候选集合中选择最优的LLL迭代，其也表现出比现有的贪婪LLL算法更低的复杂度。 此外，模拟显示，与现有的贪婪LLL算法相比，本发明的算法需要较少的LLL迭代。

    Low complexity soft output MIMO decoder
    6.
    发明授权
    Low complexity soft output MIMO decoder 有权

    公开(公告)号：US09294173B2

    公开(公告)日：2016-03-22

    申请号：US14461628

    申请日：2014-08-18

    申请人： Imagination Technologies Limited

    发明人： Sriram Kankipati ,  Somya Sharma ,  Vellenki Umapathireddy

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

    CPC分类号： H04B7/0456 ,  H04B7/046 ,  H04B7/0882 ,  H04L25/0204 ,  H04L25/0246 ,  H04L25/03318

    摘要： A method and processing block for receiving data transmitted in a MIMO system is provided. Data is transmitted as a transmit vector of values from multiple transmitting antennas and received as a receive vector of values at multiple receiving antennas. Candidate vectors are determined based on each of a plurality of constellation points of the constellation configuration used in the transmission scheme. A channel matrix is decomposed into a unitary matrix and a triangular matrix, such that a relationship links: (i) a function of the unitary matrix and the receive vector, and (ii) a multiplication of the triangular matrix and the transmit vector. A best candidate vector from the set of candidate vectors is utilized for the computation of soft bits representing the values of the transmit vector.

    Sphere Decoding Detection Method And Device
    8.
    发明申请
    Sphere Decoding Detection Method And Device 审中-公开
    球体解码检测方法和装置

    公开(公告)号：US20150349923A1

    公开(公告)日：2015-12-03

    申请号：US14654601

    申请日：2013-07-23

    申请人： ZTE CORPORATION

    发明人： Pengpeng QIAO

    IPC分类号： H04L1/00 ,  H04B7/04 ,  H04B7/08

    CPC分类号： H04L1/0052 ,  H04B7/0413 ,  H04B7/0854 ,  H04L1/00 ,  H04L1/0045 ,  H04L1/0047 ,  H04L25/0204 ,  H04L25/0246 ,  H04L25/03242 ,  H04L2025/03426

    摘要： Disclosed are a sphere decoding detection method and apparatus, including: preprocessing a received signal to obtain a signal approximate estimation value Xpre of the received signal, deducing an initial square radius D2 of sphere decoding detection according to Xpre, and determining the size I of a constellation space according to the current signal to noise ratio of the received signal; according to depth first and sphere constraint rules, searching for a search path depending on the size I of the constellation space and an initial square radius D2; after a search path is searched out, and when the sum of local Euclidean distances of the searched-out search path is less than the current square radius, updating the square radius, and re-searching for a search path until a search path cannot be searched out, and determining a candidate signal point corresponding to the latest saved search path as the optimum signal estimation point.

    摘要翻译： 公开了一种球体解码检测方法和装置，包括：对接收到的信号进行预处理以获得接收信号的信号近似估计值Xpre，根据Xpre推定球体解码检测的初始平方半径D2，并确定a的尺寸I 星座空间根据当前信噪比的接收信号; 根据深度第一和球面约束规则，根据星座空间的大小I和初始平方半径D2搜索搜索路径; 在搜索路径被搜索出之后，并且当搜索出的搜索路径的局部欧几里德距离之和小于当前平方半径时，更新平方半径，并重新搜索搜索路径，直到搜索路径不能 搜索出，并且将与最新保存的搜索路径相对应的候选信号点确定为最佳信号估计点。

    Turbo equalisation
    9.
    发明授权
    Turbo equalisation 有权
    涡轮均衡

    公开(公告)号：US09160578B2

    公开(公告)日：2015-10-13

    申请号：US14409568

    申请日：2013-06-27

    申请人： Ericsson Modems SA

    发明人： Özgün Paker

    IPC分类号： H04L25/03 ,  H04L25/02 ,  H04L1/00 ,  H04B7/04

    CPC分类号： H04L25/03305 ,  H04B7/0413 ,  H04L1/0054 ,  H04L25/0204 ,  H04L25/0246 ,  H04L25/03057 ,  H04L25/03171 ,  H04L25/0328 ,  H04L25/03318 ,  H04L25/03891

    摘要： A receiver (200) for receiving for receiving encoded data transmitted simultaneously as a plurality of M different sequences of transmitted symbols from different transmit antennas using a plurality of m modulation levels, where M and m are integers and each of the transmitted symbols represents a plurality of bits of the encoded data, comprises a demodulator (210) arranged to provide N received symbol combinations by receiving at a plurality of N receive antennas (202, 204), where N is an integer, the plurality of M different sequences of transmitted symbols, wherein each received symbol combination comprises M simultaneously received ones of the transmitted symbols. An equalizer (230) is arranged to generate from the N received symbol combinations M pre-processed signals by performing interference cancellation, in which interference cancellation a different symbol of the respective received symbol combination is a wanted signal and the other symbols of the respective received symbol combination are interfering signals. The equalizer (230) is also arranged to generate from each of the M pre-processed signals a list of up to m initial candidate symbol combinations by, for each of the up to m initial candidate symbol combinations, selecting a first initial symbol indicative of a different one of the m modulation levels and selecting M−1 further initial symbols. The equalizer (230) is further arranged to generate from the lists of initial candidate symbol combinations an initial estimate of the transmitted symbols. A decoder (260) is arranged to decode bits represented by the initial estimate of the transmitted symbols.

    摘要翻译： 一种接收机（200），用于接收用于接收用于使用多个m个调制级别从不同发射天线同时发送作为多个M个不同发射天线的不同序列的编码数据，其中M和m是整数，并且每个发射符号表示多个 编码数据的比特包括解调器（210），其被布置为通过在多个N个接收天线（202,204）中接收来提供N个接收符号组合，其中N是整数，所述多个M个不同的发射符号序列 ，其中每个接收到的符号组合包括M个同时接收到的所发射符号。 均衡器（230）被布置成通过执行干扰消除从N个接收符号组合M个预处理信号中产生，其中相应接收符号组合的不同符号的干扰消除是有用信号，以及相应接收到的其他符号 符号组合是干扰信号。 均衡器（230）还被布置为从每个M个预处理信号生成多达m个初始候选符号组合的列表，对于至多m个初始候选符号组合中的每一个，选择指示 m个调制级别中的不同的一个并且选择M-1个另外的初始符号。 均衡器（230）还被布置为从初始候选符号组合的列表生成发送符号的初始估计。 解码器（260）被布置为对由发送符号的初始估计表示的位进行解码。

    Communication system and method using subspace interference cancellation
    10.
    发明授权
    Communication system and method using subspace interference cancellation 有权
    使用子空间干扰消除的通信系统和方法

    公开(公告)号：US09031123B2

    公开(公告)日：2015-05-12

    申请号：US13835659

    申请日：2013-03-15

    申请人： Fernando Lopez de Victoria

    发明人： Fernando Lopez de Victoria

    IPC分类号： H03H7/30 ,  H04L1/00 ,  H04L25/02

    CPC分类号： H04L1/0038 ,  H04L25/0212 ,  H04L25/0232 ,  H04L25/0246

    摘要： A receiver performs interference mitigation under blind or semi-blind conditions using diversity present in the signal of interest or in the interferer. A first path interference mitigation procedure extracts training information from received signals, performs interference mitigation on the training information and estimates the channel. The second path interference mitigation procedure uses data extracted from the received signal and the channel estimate to perform interference mitigation. Each interference mitigation process can take the form of a lossy compression followed by decompression.

    摘要翻译： 接收机在盲或半盲条件下使用感兴趣的信号或干扰信号中存在的分集来执行干扰减轻。 第一路径干扰减轻程序从接收信号中提取训练信息，对训练信息执行干扰减轻并估计该信道。 第二路径干扰减轻过程使用从接收信号提取的数据和信道估计来执行干扰减轻。 每个干扰减轻过程可以采取有损压缩的形式，随后进行解压缩。