公开(公告)号：US20180248719A1

公开(公告)日：2018-08-30

申请号：US15755352

申请日：2016-08-02

申请人： Intel IP Corporation

发明人： Michael Horvat ,  Tobias Kurpjuhn ,  Christoph Jans ,  Xiaofeng Wu

IPC分类号： H04L25/03 ,  H04B7/08 ,  H04B7/0413

CPC分类号： H04L25/03891 ,  H04B7/0413 ,  H04B7/0845 ,  H04B7/0854 ,  H04L25/03993 ,  H04L2025/03426

摘要： The disclosure relates to a radio receiver, comprising: a receiving stage configured to receive a multi-layered signal comprising a plurality of layers; a division stage configured to divide the plurality of layers into a first subset and a second subset (206); a first whitening filter configured to filter the multi-layered signal based on a noise and interference covariance measure derived from the second subset to provide a first filtered multi-layered signal; and a first detection stage configured to detect at least one layer of the first subset based on the first filtered multi-layered signal.

公开(公告)号：US09509427B2

公开(公告)日：2016-11-29

申请号：US14693649

申请日：2015-04-22

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Torgny Palenius ,  Peter Alriksson ,  Joakim Axmon

IPC分类号： G06F15/16 ,  H04J11/00 ,  H04W48/16 ,  H04W36/00

CPC分类号： H04J11/0073 ,  H04B7/0845 ,  H04B7/0854 ,  H04J11/0036 ,  H04J11/0056 ,  H04W36/0061 ,  H04W48/16

摘要： Systems and methods relating to suppressing interference during cell detection are disclosed. In some embodiments, a method of operation of a wireless device to perform cell detection comprises training one or more adaptive filters to spatially filter transmissions from one or more perceived directions of one or more sources of unknown interference and performing cell detection using the one or more adaptive filters to spatially filter transmissions from the one or more perceived directions of the one or more sources of the unknown interference. In this manner, cell detection in the presence of the unknown interference is improved.

摘要翻译： 公开了关于抑制细胞检测期间的干扰的系统和方法。 在一些实施例中，无线设备执行小区检测的操作方法包括：训练一个或多个自适应滤波器，以空间过滤来自一个或多个未知干扰源的一个或多个感知方向的传输，并使用一个或多个 自适应滤波器来空间地滤除来自未知干扰的一个或多个源的一个或多个感知方向的传输。 以这种方式，改善了存在未知干扰的细胞检测。

公开(公告)号：US20160315728A1

公开(公告)日：2016-10-27

申请号：US14693649

申请日：2015-04-22

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Torgny Palenius ,  Peter Alriksson ,  Joakim Axmon

IPC分类号： H04J11/00 ,  H04W36/00 ,  H04W48/16

CPC分类号： H04J11/0073 ,  H04B7/0845 ,  H04B7/0854 ,  H04J11/0036 ,  H04J11/0056 ,  H04W36/0061 ,  H04W48/16

摘要： Systems and methods relating to suppressing interference during cell detection are disclosed. In some embodiments, a method of operation of a wireless device to perform cell detection comprises training one or more adaptive filters to spatially filter transmissions from one or more perceived directions of one or more sources of unknown interference and performing cell detection using the one or more adaptive filters to spatially filter transmissions from the one or more perceived directions of the one or more sources of the unknown interference. In this manner, cell detection in the presence of the unknown interference is improved.

摘要翻译： 公开了关于抑制细胞检测期间的干扰的系统和方法。 在一些实施例中，无线设备执行小区检测的操作方法包括：训练一个或多个自适应滤波器，以空间过滤来自一个或多个未知干扰源的一个或多个感知方向的传输，并使用一个或多个 自适应滤波器来空间地滤除来自未知干扰的一个或多个源的一个或多个感知方向的传输。 以这种方式，改善了存在未知干扰的细胞检测。

公开(公告)号：US09270327B2

公开(公告)日：2016-02-23

申请号：US14710162

申请日：2015-05-12

申请人： InterDigital Technology Corporation

发明人： David K. Mesecher ,  Alexander Reznik ,  Donald M. Grieco ,  Gary Cheung

IPC分类号： H04B1/00 ,  H04B1/7103 ,  H04B1/7097 ,  H04B1/712 ,  H04B7/06 ,  H04J13/00 ,  H04B7/08

CPC分类号： H04B1/7103 ,  H04B1/7097 ,  H04B1/712 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0678 ,  H04B7/0845 ,  H04B7/0854 ,  H04B7/0857 ,  H04B7/0891 ,  H04B2201/70701 ,  H04J13/0003

摘要： A method and apparatus used to transmit and receive weighted data transmissions over a plurality of antennas using a plurality of different pilot signals. Different pilot signals are produced and a different pilot signal of the plurality of pilot signals is transmitted on each of a plurality of antennas. Each of the pilot signals is derived from a pseudo noise (PN) sequence and a bit sequence of the PN sequence for each of the pilot signals is different. A plurality of data streams are produced in which each of the data streams has data bits combined with bits of a PN sequence. The data streams are weighted in response to weight information received from a receiving device and the plurality of weighted data streams are transmitted using the plurality of antennas.

摘要翻译： 一种用于使用多个不同导频信号在多个天线上发送和接收加权数据传输的方法和装置。 产生不同的导频信号，并且在多个天线中的每一个上发送多个导频信号的不同导频信号。 每个导频信号是从伪噪声（PN）序列导出的，并且每个导频信号的PN序列的比特序列是不同的。 产生多个数据流，其中每个数据流具有与PN序列的位组合的数据位。 响应于从接收设备接收的权重信息对数据流进行加权，并且使用多个天线发送多个加权数据流。

公开(公告)号：US09219522B2

公开(公告)日：2015-12-22

申请号：US12901616

申请日：2010-10-11

申请人： David K. Mesecher

发明人： David K. Mesecher

IPC分类号： H04B1/00 ,  H04B1/69 ,  H04B1/712 ,  H04B7/06 ,  H04B7/08 ,  H04J13/00

CPC分类号： H04B1/712 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0678 ,  H04B7/0845 ,  H04B7/0854 ,  H04B7/0857 ,  H04B7/0891 ,  H04B2201/70701 ,  H04J13/0003

摘要： A code division multiple access communication system has a base station with a plurality of transmitting antennas. From each transmitting antenna of the base station, a pilot signal is transmitted having a different chip sequence than the other transmitting antenna. At a user equipment, the transmitted pilot signals are received from each transmitting antenna. A weight adjustment is derived in response to the received transmitted pilot signals. The user equipment transmits the weight adjustment to the base station. The transmitted weight adjustment is received from the user equipment. A data signal is processed to produce a plurality of versions of the data signal. At least a portion of each processed data signal has a different chip sequence than the other processed data signal version. At least one processed data signal version is weighted by a weight value adjusted in response to the received transmitted weight adjustment. From each transmitting antenna, a different one of the data signal versions is transmitted and the transmitted data signal versions are received at the user equipment.

摘要翻译： 码分多址通信系统具有具有多个发送天线的基站。 从基站的每个发送天线发送具有与另一发送天线不同的码片序列的导频信号。 在用户设备中，从每个发送天线接收所发送的导频信号。 响应于接收到的发送导频信号导出权重调整。 用户设备向基站发送权重调整。 从用户设备接收发送的权重调整。 处理数据信号以产生数据信号的多个版本。 每个处理的数据信号的至少一部分具有与其它处理的数据信号版本不同的码片序列。 至少一个经处理的数据信号版本通过响应于接收到的发送权重调整而调整的权重值加权。 从每个发送天线，发送不同的数据信号版本，并且在用户设备处接收所发送的数据信号版本。

公开(公告)号：US09172456B2

公开(公告)日：2015-10-27

申请号：US14520626

申请日：2014-10-22

申请人： III Holdings 1, LLC

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

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04B7/08 ,  H04B1/7107 ,  H04J11/00 ,  H04B1/712

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.

摘要翻译： 本发明教导了用于抑制经频率选择通信信道传播到多个接收天线的编码，多址，扩频传输中的小区内和小区间干扰的干扰抑制接收机的细节。 通过重复使用符号估计加权，具有稳定步长的减法抑制和混合判决符号估计来设计或适配接收机。 接收器实施例可以在软件或编程硬件中明确设计，适应和实现，或隐含地在RAKE（即，在手指级）或RAKE外部（即在用户或子信道符号处）内的基于标准RAKE的硬件中 水平）。 可以在前向链路上的用户设备或反向链路上的基站中采用实施例。 它可以适用于要从干扰中提取信号的一般信号处理应用。

公开(公告)号：US20150244490A1

公开(公告)日：2015-08-27

申请号：US14583179

申请日：2014-12-25

申请人： FUJITSU LIMITED

发明人： Hideki Furudate

IPC分类号： H04J11/00 ,  H04L27/26 ,  H04B7/08

CPC分类号： H04L27/2647 ,  H04B7/0845 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/03159

摘要： A receiving device includes: a propagation path compensation unit that compensates a signal by using a propagation path characteristic; a power arithmetic section that arithmetically operates power of a signal; a first reciprocal processing section that performs reciprocal processing on power to output a signal; an error arithmetic section that arithmetically operates an error of the compensated signal; a subtractor that subtracts the signal output from the first reciprocal processing section from the error; a second reciprocal processing unit that performs reciprocal processing on the signal output from the subtractor to output a signal; a first multiplier that multiplies the power and the signal output from the second reciprocal processing unit together to output a signal; and a second multiplier that multiplies the signal compensated by the propagation path compensation unit and the signal output from the first multiplier together to output a signal to an adder.

摘要翻译： 接收装置包括：传播路径补偿单元，其通过使用传播路径特性来补偿信号; 功率运算部，算术运算信号的功率; 第一相互处理部，其对功率进行相互处理以输出信号; 算术运算补偿信号的误差的误差运算部; 减法器，其从所述误差中减去从所述第一倒数处理部分输出的信号; 第二倒数处理单元，对从减法器输出的信号进行相互处理，输出信号; 第一乘法器，将功率和来自第二互逆处理单元的信号输出相乘在一起以输出信号; 以及第二乘法器，将由传播路径补偿单元补偿的信号与从第一乘法器输出的信号相乘，以将信号输出到加法器。

公开(公告)号：US20150188603A1

公开(公告)日：2015-07-02

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： H04B1/712 ,  H04B7/08

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：US20150131763A1

公开(公告)日：2015-05-14

申请号：US14310930

申请日：2014-06-20

申请人： Electronics and Telecommunications Research Institute

发明人： Jae-young JUNG ,  Sang Hyun MO ,  Won Kyu CHOI ,  Hoe-Sung YANG ,  Chan-Won PARK ,  CHEOL SIG PYO

IPC分类号： H04L25/02 ,  H04L1/06 ,  G06K7/10 ,  H04B7/08

CPC分类号： H04L25/0204 ,  G06K7/10366 ,  H04B7/0845 ,  H04L1/06 ,  H04L25/0228

摘要： A receiving apparatus for an RFID reader estimates channel coefficients for each of a plurality of receiving antennas based on tag response signals received via a plurality of receiving antennas, compensates the tag response signals received via the plurality of receiving antennas based on the channel coefficients estimated for each of a plurality of channel estimators, combines the compensated tag response signals for each of the plurality of receiving antennas to generate a combined signal, and detect bits in the combined signal.

摘要翻译： 用于RFID读取器的接收装置基于经由多个接收天线接收的标签响应信号来估计多个接收天线中的每一个的信道系数，根据估计的信道系数来补偿经由多个接收天线接收的标签响应信号 多个信道估计器中的每一个组合用于多个接收天线中的每一个的经补偿标签响应信号以产生组合信号，并检测组合信号中的比特。

公开(公告)号：US08848846B2

公开(公告)日：2014-09-30

申请号：US12967120

申请日：2010-12-14

申请人： Herbert Dawid ,  Thorsten Clevorn ,  Christian Drewes ,  Edgar Bolinth

发明人： Herbert Dawid ,  Thorsten Clevorn ,  Christian Drewes ,  Edgar Bolinth

IPC分类号： H04B7/08 ,  H04L1/02 ,  H04B1/712 ,  H04B1/707

CPC分类号： H04B7/0845 ,  H04B1/712 ,  H04B2001/70724

摘要： A receiver includes a plurality of receive antennas configured to receive radio signals from a plurality of transmit antennas, and a plurality of sets of RAKE fingers configured to generate first signals, wherein each set of RAKE fingers is coupled to a respective one of the plurality of receive antennas. The receiver further includes a weighting factor generator configured to generate weighting factors for weighting the first signals, wherein at least one of the weighting factors is generated by using first signals that are generated by at least two of the plurality of sets of RAKE fingers and received from at least two of the plurality of transmit antennas.

摘要翻译： 接收机包括被配置为从多个发射天线接收无线电信号的多个接收天线以及被配置为产生第一信号的多组RAKE指，其中每组RAKE指被耦合到多个发射天线中的相应一个 接收天线。 所述接收机还包括加权因子发生器，其被配置为产生用于对所述第一信号进行加权的加权因子，其中通过使用由所述多个RAKE手指中的至少两个产生并接收到的第一信号来生成所述加权因子中的至少一个 从多个发射天线中的至少两个发射天线。