公开(公告)号：US09048917B1

公开(公告)日：2015-06-02

申请号：US13959498

申请日：2013-08-05

Applicant: Marvell International Ltd.

Inventor： Krishna Srikanth Gomadam ,  Yakun Sun ,  Raphael Cendrillon ,  Christian R. Berger ,  Hui-Ling Lou

IPC: H04B1/10 ,  H04L25/02 ,  H04L5/00 ,  H04L25/03 ,  H04L1/02 ,  H04L1/06 ,  H04B7/02 ,  H04B7/04 ,  H04W52/24

CPC classification number: H04B17/345 ,  H04B1/1027 ,  H04B7/024 ,  H04B7/04 ,  H04B7/0413 ,  H04L1/02 ,  H04L1/0631 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/021 ,  H04L25/024 ,  H04L25/0242 ,  H04L25/0248 ,  H04L25/0328 ,  H04L25/03292 ,  H04L25/03891 ,  H04L25/03993 ,  H04W52/24

Abstract: The present disclosure includes systems and techniques relating to processing received spatially diverse transmissions. In some implementations, an apparatus includes: circuitry configured to receive signals from separate communication inputs; circuitry configured to filter the signals to reduce noise, interference, or both; circuitry configured to estimate covariance of the separate communication inputs, including estimating a correlation between the separate communication inputs; and circuitry configured to apply the covariance estimation to the filtering circuitry to effect noise whitening and to force an underestimation of the correlation between the separate communication inputs as applied.

Abstract translation: 本公开包括与处理接收到的空间不同的传输有关的系统和技术。 在一些实施方式中，一种装置包括：被配置为从单独的通信输入接收信号的电路; 被配置为过滤信号以减少噪声，干扰或两者的电路; 被配置为估计所述单独通信输入的协方差的电路，包括估计所述单独的通信输入之间的相关性; 以及电路，被配置为将所述协方差估计应用于所述滤波电路以实现噪声白化，并且强制低估所应用的分离的通信输入之间的相关性。

公开(公告)号：US08811523B1

公开(公告)日：2014-08-19

申请号：US14107284

申请日：2013-12-16

Applicant: Marvell International Ltd.

Inventor： Krishna Srikanth Gomadam ,  Daniel Yellin ,  Yu-Ngok Li

IPC: H04B7/02

CPC classification number: H04B7/0452 ,  H04B7/0456 ,  H04B7/0632 ,  H04B7/0639

Abstract: Some of the embodiments of the present disclosure provide a method comprising selecting, by a user equipment (UE), a preferred interference precoding matrix from a plurality of candidate precoding matrices included in a codebook; and transmitting, by the user equipment to a communication node, a preferred interference precoding matrix index (PMI) corresponding to the preferred interference precoding matrix included in the codebook. Other embodiments are also described and claimed.

Abstract translation: 本公开的一些实施例提供了一种方法，包括由用户设备（UE）从包括在码本中的多个候选预编码矩阵中选择优选的干扰预编码矩阵; 以及由所述用户设备向通信节点发送与所述码本中包含的优选干扰预编码矩阵相对应的优选干扰预编码矩阵索引（PMI）。 还描述和要求保护其他实施例。

公开(公告)号：US08787483B1

公开(公告)日：2014-07-22

申请号：US13659709

申请日：2012-10-24

Applicant: Marvell International Ltd.

Inventor： Yakun Sun ,  Krishna Srikanth Gomadam ,  Jiwoong Choi ,  Raphael Cendrillon ,  Hui-Ling Lou ,  Yan Zhang

IPC: H04L1/02

CPC classification number: H04L1/0048 ,  H04B7/0413 ,  H04L1/06 ,  H04L25/03248 ,  H04L25/03891 ,  H04L27/0012

Abstract: In accordance with an embodiment, there is provided a method comprising receiving, at a receiver, a desired signal and an interfering signal, wherein the interfering signal was transmitted with a modulation unknown to the receiver; identifying a likely modulation corresponding to the modulation with which the interfering signal was transmitted; and decoding the desired signal using a modulation dependent multiple-input multiple output (MIMO) detection, wherein the modulation dependent MIMO detection is based at least in part on the identified likely modulation corresponding to the modulation with which the interfering signal was transmitted, wherein the modulation dependent MIMO detection includes maximum likelihood (ML) detection.

Abstract translation: 根据实施例，提供了一种方法，包括在接收机处接收期望信号和干扰信号，其中以接收机未知的调制方式发送干扰信号; 识别与所述干扰信号被发送的调制相对应的可能调制; 以及使用调制相关多输入多输出（MIMO）检测对所述期望信号进行解码，其中所述调制相关MIMO检测至少部分地基于与所述干扰信号被发送的调制相对应的所识别的可能调制，其中， 调制相关MIMO检测包括最大似然（ML）检测。

公开(公告)号：US09025708B1

公开(公告)日：2015-05-05

申请号：US14331557

申请日：2014-07-15

Applicant: Marvell International Ltd.

Inventor： Yakun Sun ,  Krishna Srikanth Gomadam ,  Jiwoong Choi ,  Raphael Cendrillon ,  Hui-Ling Lou ,  Yan Zhang

IPC: H04L1/02 ,  H04L1/00 ,  H04B7/04 ,  H04L27/00

CPC classification number: H04L1/0048 ,  H04B7/0413 ,  H04L1/06 ,  H04L25/03248 ,  H04L25/03891 ,  H04L27/0012

Abstract: In accordance with an embodiment, there is provided a method comprising receiving, at a receiver, a desired signal and an interfering signal, wherein the interfering signal was transmitted with a modulation unknown to the receiver; identifying a likely modulation corresponding to the modulation with which the interfering signal was transmitted; and decoding the desired signal using a modulation dependent multiple-input multiple output (MIMO) detection, wherein the modulation dependent MIMO detection is based at least in part on the identified likely modulation corresponding to the modulation with which the interfering signal was transmitted, wherein the modulation dependent MIMO detection includes maximum likelihood (ML) detection.

Abstract translation: 根据实施例，提供了一种方法，包括在接收机处接收期望信号和干扰信号，其中以接收机未知的调制方式发送干扰信号; 识别与所述干扰信号被发送的调制相对应的可能调制; 以及使用调制相关多输入多输出（MIMO）检测对所述期望信号进行解码，其中所述调制相关MIMO检测至少部分地基于与所述干扰信号被发送的调制相对应的所识别的可能调制，其中， 调制相关MIMO检测包括最大似然（ML）检测。

公开(公告)号：US09119082B1

公开(公告)日：2015-08-25

申请号：US13733150

申请日：2013-01-03

Applicant: Marvell International Ltd.

Inventor： Krishna Srikanth Gomadam ,  Raphael Cendrillon

IPC: H04B1/28 ,  H04W48/20 ,  H04W24/02

CPC classification number: H04B1/28 ,  H04J11/0053 ,  H04L5/0035 ,  H04L5/0048

Abstract: A method includes, in a mobile communication terminal, receiving signals from a group of cells in multiple time-frequency Resource Elements (REs). The signals include a desired signal component and an interfering signal component. A subset of the REs, in which the cells are known deterministically to transmit at least part of the interfering signal component and to not transmit the desired signal component, is identified in the terminal. An interference caused by the interfering signal component to the desired signal component is estimated in the terminal, by measuring the signals in the REs in the subset.

Abstract translation: 一种方法包括在移动通信终端中从多个时频资源元素（RE）中的一组小区接收信号。 信号包括期望的信号分量和干扰信号分量。 在终端中识别RE的子集，其中确定性地确定小区被传送至少部分干扰信号分量并且不发送所需信号分量的小区。 通过测量子集中的RE中的信号，在终端中估计由干扰信号分量引起的对所需信号分量的干扰。

公开(公告)号：US09054753B1

公开(公告)日：2015-06-09

申请号：US14056813

申请日：2013-10-17

Applicant: Marvell International Ltd.

Inventor： Krishna Srikanth Gomadam ,  Adoram Erell ,  Yan Zhang

IPC: H04B1/00 ,  H04B15/00 ,  H04B7/04 ,  H04B7/00

CPC classification number: H04B7/0417 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0645

Abstract: Some of the embodiments of the present disclosure provide a method for reducing interference feedback in a mobile device operating in a wireless system employing coordinated transmission. The method comprises the mobile device establishing a plurality of channels with a plurality of base stations. The plurality of base stations includes a serving base station and one or more interfering base stations. The method further comprises the mobile device reporting, to the serving base station, reduced feedback information including a vector approximation of a feedback matrix associated with an interfering channel established with an interfering base station. Other embodiments are also described and claimed.

Abstract translation: 本公开的一些实施例提供了一种减少在采用协调传输的无线系统中工作的移动设备中的干扰反馈的方法。 该方法包括移动设备与多个基站建立多个信道。 多个基站包括服务基站和一个或多个干扰基站。 该方法还包括移动设备向服务基站报告减少的反馈信息，其包括与与干扰基站建立的干扰信道相关联的反馈矩阵的向量近似。 还描述和要求保护其他实施例。

公开(公告)号：US08902842B1

公开(公告)日：2014-12-02

申请号：US13736959

申请日：2013-01-09

Applicant: Marvell International Ltd.

Inventor： Krishna Srikanth Gomadam ,  Jihwan P. Choi ,  Yakun Sun

IPC: H04W4/00 ,  H04W72/04

CPC classification number: H04L5/0035 ,  H04B7/024 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0073 ,  H04L5/0094

Abstract: A method includes receiving in a mobile communication terminal signals from a group of cells that cooperate in a Coordinated Multipoint (CoMP) transmission scheme. Signaling information is received from a first cell in the group. The signaling information is indicative of a first pattern of time-frequency Resource Elements (REs) used by the first cell for transmitting reference signals, and is further indicative of a second pattern of the REs used by a second cell in the group for transmitting the reference signals. A third pattern of the REs, which are available for receiving data from the cells, is derived in the terminal from the signaling information that is indicative of the first and second patterns. The data from the cells is received in the terminal in one or more of the REs in the third pattern.

Abstract translation: 一种方法包括在移动通信终端中接收来自以协调多点（CoMP）传输方案协作的一组小区的信号。 从组中的第一个单元接收信令信息。 所述信令信息指示由所述第一小区用于发送参考信号的时间 - 频率资源元素（RE）的第一模式，并且还指示由所述组中的第二小区使用的用于发送参考信号的所述RE的第二模式 参考信号。 可用于从小区接收数据的RE的第三模式是从表示第一和第二模式的信令信息在终端中导出的。 来自单元的数据在第三模式中的一个或多个RE中在终端中被接收。