公开(公告)号：US20170214450A1

公开(公告)日：2017-07-27

申请号：US15328883

申请日：2014-12-01

申请人： Sanechips Technology Co., Ltd.

发明人： Gang Wu

IPC分类号： H04B7/08 ,  H04L1/00

CPC分类号： H04B7/0845 ,  H04B7/0413 ,  H04B7/0854 ,  H04L1/0054 ,  H04L1/06 ,  H04L25/03

摘要： The disclosure discloses a path detection method including after obtaining an equalizing signal of a received signal, Maximum Likelihood (ML) path detection and ML complementary set path detection are performed on the equalizing signal according to the pre-set maximum number of reserved nodes and maximum number of expanded branches of each layer; in the process of the detections, an accumulated path measurement value is calculated after finishing the search of each layer and each path, and the accumulated path measurement value is compared with a pre-set search measurement threshold; when the accumulated path measurement value is less than the search measurement threshold, the search of this path is continued; otherwise the search of this path is finished and the search of the next path is started until all the paths are searched. The disclosure also discloses a path detection device, Sphere Decoding (SD) detection device and computer storage medium.

公开(公告)号：US09673881B2

公开(公告)日：2017-06-06

申请号：US14434161

申请日：2013-10-01

申请人： Sharp Kabushiki Kaisha

发明人： Hiromichi Tomeba ,  Takashi Onodera ,  Alvaro Ruiz Delgado ,  Minoru Kubota

IPC分类号： H04W4/00 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/08 ,  H04W72/04

CPC分类号： H04B7/0626 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0845 ,  H04W72/0406

摘要： In a wireless communication system that performs non-linear pre-coding, degradation in transmission performance due to a feedback error is improved. The terminal device according to the present invention is a terminal device which receives radio signals that are space-multiplexed and on which non-linear pre-coding is performed, from a base station device including multiple antennas, the terminal device including: a channel state estimator 53 that estimates channel state information on a channel between the terminal device and the base station device; a terminal antenna module 51 that acquires a linear filter that is calculated in the base station device; and a channel equalization module 57 that performs channel equalization processing on the radio signals that are received at a first point in time, based on the channel state information at a second point in time that precedes the first point in time and on the linear filter.

公开(公告)号：US20160359522A1

公开(公告)日：2016-12-08

申请号：US15242876

申请日：2016-08-22

申请人： III Holdings 1, LLC

发明人： Tommy Guess ,  Michael L. McCloud ,  Vijay Nagarajan ,  Gagandeep Singh Lamba

IPC分类号： H04B1/7115 ,  H04J11/00

CPC分类号： H04B1/7115 ,  H04B1/71075 ,  H04B1/712 ,  H04B7/0845 ,  H04B7/0894 ,  H04B2201/70702 ,  H04J11/0063

摘要： This invention teaches to the details of an interference suppressing receiver for suppressing intra-cell and inter-cell interference in coded, multiple-access, spread spectrum transmissions that propagate through frequency selective communication channels to a multiplicity of receive antennas. The receiver is designed or adapted through the repeated use of symbol-estimate weighting, subtractive suppression with a stabilizing step-size, and mixed-decision symbol estimates. Receiver embodiments may be designed, adapted, and implemented explicitly in software or programmed hardware, or implicitly in standard RAKE-based hardware either within the RAKE (i.e., at the finger level) or outside the RAKE (i.e., at the user or subchannel symbol level). Embodiments may be employed in user equipment on the forward link or in a base station on the reverse link. It may be adapted to general signal processing applications where a signal is to be extracted from interference.

公开(公告)号：US20160080066A1

公开(公告)日：2016-03-17

申请号：US14950332

申请日：2015-11-24

申请人： AT&T Mobility II LLC

发明人： Siavash Alamouti ,  Vahid Tarokh

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

CPC分类号： H04B7/0857 ,  H04B1/02 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0667 ,  H04B7/0669 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0837 ,  H04B7/0845 ,  H04B7/0854 ,  H04B7/0891 ,  H04B7/12 ,  H04L1/0054 ,  H04L1/04 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/0631 ,  H04L1/0643 ,  H04L1/0668 ,  H04L1/08 ,  H04L25/0202

摘要： A simple block coding arrangement is created with symbols transmitted over a plurality of transmit channels, in connection with coding that comprises only simple arithmetic operations, such as negation and conjugation. The diversity created by the transmitter utilizes space diversity and either time or frequency diversity. Space diversity is effected by redundantly transmitting over a plurality of antennas, time diversity is effected by redundantly transmitting at different times, and frequency diversity is effected by redundantly transmitting at different frequencies: Illustratively, using two transmit antennas and a single receive antenna, one of the disclosed embodiments provides the same diversity gain as the maximal-ratio receiver combining (MRRC) scheme with one transmit antenna and two receive antennas. The principles of this invention are applicable to arrangements with more than two antennas, and an illustrative embodiment is disclosed using the same space block code with two transmit and two receive antennas.

公开(公告)号：US20150326301A1

公开(公告)日：2015-11-12

申请号：US14690607

申请日：2015-04-20

申请人： MaxLinear, Inc.

发明人： Anand K. Anandakumar ,  Curtis Ling ,  Sugbong Kang

IPC分类号： H04B7/08 ,  H04L25/14 ,  H04B1/16 ,  H04L25/02

CPC分类号： H04B7/0845 ,  H04B1/16 ,  H04B7/0857 ,  H04B7/0885 ,  H04B7/12 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/03159 ,  H04L25/14 ,  H04L27/2649 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A system may comprise a plurality of signal processing paths, a bin-wise combiner, an inverse transformation block, and a DAC. Each signal processing path may comprise a transformation block that is operable to transform a first time-domain digital signal to an associated frequency-domain signal having a plurality of subband signals. The bin-wise combiner may be operable to combine corresponding subband signals of the plurality of signal processing paths. The inverse transformation block may be operable to transform output of the bin-wise combiner to an second time-domain signal. The DAC may be operable to converts the second time-domain signal to a corresponding analog signal.

摘要翻译： 系统可以包括多个信号处理路径，二进制组合器，逆变换块和DAC。 每个信号处理路径可以包括变换块，其可操作以将第一时域数字信号变换为具有多个子带信号的相关联的频域信号。 二进制组合器可以可操作以组合多个信号处理路径的相应子带信号。 逆变换块可以用于将二进制组合器的输出变换为第二时域信号。 DAC可以用于将第二时域信号转换成相应的模拟信号。

公开(公告)号：US09160436B1

公开(公告)日：2015-10-13

申请号：US14107183

申请日：2013-12-16

申请人： Marvell International Ltd.

发明人： Jungwon Lee ,  Rohit U. Nabar ,  Hui-Ling Lou

IPC分类号： H03D1/00 ,  H04L27/06 ,  H04B7/08 ,  H04B1/10

CPC分类号： H04B7/08 ,  H04B1/10 ,  H04B7/0669 ,  H04B7/0845 ,  H04L1/0631 ,  H04L1/0668

摘要： Systems and methods are provided for decoding a signal vector in a transmit diversity scheme for varying channels. Information obtained in more than one symbol period are treated as a single received vector, and each of the received signal vectors may be processed to reduce the effects of varying channel characteristics. The received signal vectors may be combined by addition and decoded using a maximum-likelihood decoder. In some embodiments, the received signal vectors are processed separately and then combined. In other embodiments, the received signal vectors are combined and then processed. In some embodiments, zero-forced linear equalization techniques are used to processed the received signals. In some embodiments the signal vectors and varying channel response matrices are broken down to equivalent forms in order to simplify the processing.

摘要翻译： 提供了用于对用于不同信道的发射分集方案中的信号矢量进行解码的系统和方法。 在多个符号周期中获得的信息被视为单个接收向量，并且可以处理每个接收信号向量以减少变化的信道特性的影响。 接收的信号矢量可以通过加法组合，并使用最大似然解码器解码。 在一些实施例中，接收的信号向量被单独处理，然后组合。 在其他实施例中，接收的信号向量被组合然后被处理。 在一些实施例中，使用零强制线性均衡技术来处理所接收的信号。 在一些实施例中，为了简化处理，信号向量和变化的信道响应矩阵被分解成等同的形式。

公开(公告)号：US20150270884A1

公开(公告)日：2015-09-24

申请号：US14434161

申请日：2013-10-01

申请人： Sharp Kabushiki Kaisha

发明人： Hiromichi Tomeba ,  Takashi Onodera ,  Alvaro Ruiz Delgado ,  Minoru Kubota

IPC分类号： H04B7/06 ,  H04B7/08 ,  H04W72/04 ,  H04B7/04

CPC分类号： H04B7/0626 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0845 ,  H04W72/0406

摘要： In a wireless communication system that performs non-linear pre-coding, degradation in transmission performance due to a feedback error is improved. The terminal device according to the present invention is a terminal device which receives radio signals that are space-multiplexed and on which non-linear pre-coding is performed, from a base station device including multiple antennas, the terminal device including: a channel state estimator 53 that estimates channel state information on a channel between the terminal device and the base station device; a terminal antenna module 51 that acquires a linear filter that is calculated in the base station device; and a channel equalization module 57 that performs channel equalization processing on the radio signals that are received at a first point in time, based on the channel state information at a second point in time that precedes the first point in time and on the linear filter.

摘要翻译： 在执行非线性预编码的无线通信系统中，提高了由于反馈误差引起的传输性能的劣化。 根据本发明的终端装置是从包括多个天线的基站装置接收空间复用的无线电信号并执行非线性预编码的终端装置，该终端装置包括：信道状态 估计器53，估计终端设备和基站设备之间的信道上的信道状态信息; 终端天线模块51，其获取在所述基站装置中计算出的线性滤波器; 以及信道均衡模块57，其基于在第一时间点之前的第二时间点上的信道状态信息和线性滤波器，对在第一时间点接收到的无线电信号执行信道均衡处理。

公开(公告)号：US09143191B2

公开(公告)日：2015-09-22

申请号：US14643475

申请日：2015-03-10

申请人： Marvell World Trade Ltd.

发明人： Zhiyu Yang ,  Hongyuan Zhang

IPC分类号： H04B1/10 ,  H04B1/712 ,  H04B7/08 ,  H04W84/12

CPC分类号： H04B1/712 ,  H04B1/1081 ,  H04B1/7115 ,  H04B1/7117 ,  H04B7/0845 ,  H04W84/12

摘要： An interface including filter modules, receiver modules, and a summer. The filter modules are configured to receive from multiple antennas multipath components of a signal as transmitted to the interface. Each of the filter modules is configured to (i) receive corresponding ones of the multipath components of the signal as received at a respective one of the antennas, and (ii) according to a wireless communication protocol standard, filter the signal as received at the respective one of the antennas to generate a filtered signal. The wireless communication protocol standard is designed for a receiver having only a single antenna for receiving signals. The receiver modules are configured to respectively receive the filtered signals. Each of the receiver modules is configured to combine the multipath components in the respective filtered signal to generate an output signal. The summer is configured to sum the output signals.

摘要翻译： 包括过滤器模块，接收器模块和夏季的接口。 滤波器模块被配置为从多个天线接收多路径传输到接口的信号分量。 每个滤波器模块被配置为（i）接收在相应的一个天线处接收的信号的相应的多路径分量，以及（ii）根据无线通信协议标准，过滤在 相应的一个天线来产生滤波信号。 无线通信协议标准被设计用于仅具有用于接收信号的单个天线的接收机。 接收器模块被配置为分别接收经滤波的信号。 每个接收器模块被配置为组合各个滤波信号中的多径分量以产生输出信号。 夏天配置为对输出信号求和。

公开(公告)号：US09118533B2

公开(公告)日：2015-08-25

申请号：US14015238

申请日：2013-08-30

申请人： Silicon Laboratories Inc.

发明人： Javier Elenes ,  Dana Taipale

IPC分类号： H04L27/26 ,  H04B1/12 ,  H04B7/08

CPC分类号： H04L27/2649 ,  H04B1/126 ,  H04B7/0845 ,  H04B7/0848 ,  H04B7/0891 ,  H04L27/2647 ,  H04L27/265

摘要： In an embodiment, an apparatus includes a first tuner to receive a radio frequency (RF) signal from a first antenna and to process the RF signal to generate a first time-domain quadrature signal, a second tuner to receive the RF signal from a second antenna and to process the RF signal to generate a second time-domain quadrature signal, and a combiner circuit to receive the first and second time-domain quadrature signals.

摘要翻译： 在一个实施例中，一种装置包括：第一调谐器，用于接收来自第一天线的射频（RF）信号，并处理RF信号以产生第一时域正交信号;第二调谐器，用于从第二天线接收RF信号 天线并处理RF信号以产生第二时域正交信号，以及组合器电路以接收第一和第二时域正交信号。

公开(公告)号：US08976917B2

公开(公告)日：2015-03-10

申请号：US14217910

申请日：2014-03-18

申请人： Marvell World Trade Ltd.

发明人： Zhiyu Yang ,  Hongyuan Zhang

IPC分类号： H04B1/10 ,  H04B1/7115 ,  H04B7/08 ,  H04B1/7117 ,  H04B1/712

CPC分类号： H04B1/712 ,  H04B1/1081 ,  H04B1/7115 ,  H04B1/7117 ,  H04B7/0845 ,  H04W84/12

摘要： A receiver communicating according to a wireless communication protocol standard for filtering a signal received at a single antenna. The receiver includes filter modules, receiver modules, and a summer. The filter modules receive from antennas multipath components of the signal as transmitted to the receiver. The signal includes bits of data. Each of the filter modules: receives corresponding ones of the multipath components of the signal as received at a respective one of the antennas; and according to the wireless communication protocol standard, filters the signal as received at the respective one of the antennas to generate a filtered signal. The receiver modules respectively receive the filtered signals. Each of the receiver modules combines the multipath components in the respective filtered signal to generate an output signal. Each of the output signals includes a respective version of the bits of data. The summer sums the output signals.

摘要翻译： 一种根据用于对在单个天线处接收的信号进行滤波的无线通信协议标准进行通信的接收机。 接收器包括滤波器模块，接收器模块和夏季。 滤波器模块从天线接收发射到接收机的信号的多径分量。 该信号包括数据位。 每个滤波器模块：接收在相应的一个天线处接收的信号的对应的多径分量; 并且根据无线通信协议标准，对在相应一个天线处接收到的信号进行滤波以产生滤波信号。 接收机模块分别接收经滤波的信号。 每个接收器模块将各个滤波信号中的多径分量组合以产生输出信号。 每个输出信号包括数据位的相应版本。 夏天把输出信号加起来。