公开(公告)号：US09031150B2

公开(公告)日：2015-05-12

申请号：US14215093

申请日：2014-03-17

Applicant: Marvell World Trade Ltd.

Inventor： Ezer Melzer ,  Yu-Ngok Li ,  Adoram Erell ,  Daniel Yellin

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/063

Abstract: A method for communication includes configuring a communication system that includes a transmitter and a receiver with first precoding matrices for mapping up to N data streams onto N transmit antenna ports of the transmitter. Each of at least some of the first precoding matrices are derived from respective second and third precoding matrices. The second and third precoding matrices are configured for mapping data onto respective numbers of transmit antenna ports that are less than N. The data streams are mapped onto the N transmit antenna ports using a precoding scheme based on one of the first precoding matrices. The mapped data streams are transmitted over the N transmit antenna ports from the transmitter to the receiver.

Abstract translation: 一种用于通信的方法包括：配置具有第一预编码矩阵的发射机和接收机的通信系统，用于将多达N个数据流映射到发射机的N个发射天线端口。 至少一些第一预编码矩阵中的每一个从相应的第二和第三预编码矩阵导出。 第二和第三预编码矩阵被配置用于将数据映射到小于N的发射天线端口的相应数量上。使用基于第一预编码矩阵之一的预编码方案将数据流映射到N个发射天线端口。 映射的数据流通过N个发射天线端口从发射机发射到接收机。

公开(公告)号：US20150071388A1

公开(公告)日：2015-03-12

申请号：US14481931

申请日：2014-09-10

Applicant: Marvell World Trade Ltd.

Inventor： Yona Perets ,  Daniel Yellin ,  Kobby Pick ,  Ronen Mayrench

IPC: H04B1/12 ,  H04L5/00

CPC classification number: H04B1/12 ,  H04L5/0007 ,  H04L25/0222 ,  H04L27/2657

Abstract: A method includes holding in a memory of a communication terminal multiple predefined vectors, each including signal autocorrelation values computed for a respective Doppler shift. A signal is received, and empirical autocorrelation values are calculated for the received signal. An actual Doppler shift of the received signal is estimated by selecting, from among the predefined vectors, a vector whose autocorrelation values best match the empirical autocorrelation values of the received signal.

Abstract translation: 一种方法包括在通信终端的存储器中保存多个预定义向量，每个预定向量包括为相应的多普勒频移计算的信号自相关值。 接收信号，并计算接收信号的经验自相关值。 通过从预定矢量中选择自相关值与接收信号的经验自相关值最匹配的矢量来估计接收信号的实际多普勒频移。

公开(公告)号：US08761297B2

公开(公告)日：2014-06-24

申请号：US14106774

申请日：2013-12-15

Applicant: Marvell World Trade Ltd.

Inventor： Adoram Erell ,  Daniel Yellin

IPC: H04B7/04

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0421 ,  H04B7/0465 ,  H04B7/0634

Abstract: A method includes holding in a receiver a definition of a codebook including precoding matrices, and a definition of multiple sub-codebooks including different respective subsets of the precoding matrices in the codebook. A sub-codebook is selected in coordination with a transmitter, for use in a given time interval or frequency range. A Multiple-Input Multiple-Output (MIMO) signal that is transmitted from the transmitter is received. Feedback is generated in the receiver based on the received MIMO signal. The feedback is indicative of one or more preferred precoding matrices, which are chosen from the selected sub-codebook and which are to be used in precoding subsequent MIMO signals in respective partitions of the given time interval or frequency range. The feedback is transmitted from the receiver to the transmitter.

Abstract translation: 一种方法包括在接收机中保存包括预编码矩阵的码本的定义，以及包括码本中的预编码矩阵的不同相应子集的多个子码本的定义。 与发射机协调选择子码本，以在给定的时间间隔或频率范围内使用。 从发射机发送的多输入多输出（MIMO）信号被接收。 基于接收的MIMO信号在接收机中生成反馈。 该反馈指示一个或多个优选的预编码矩阵，其从所选择的子码本中选择，并且将被用于对给定时间间隔或频率范围的相应分区中的后续MIMO信号进行预编码。 反馈从接收机传输到发射机。

公开(公告)号：US08711970B2

公开(公告)日：2014-04-29

申请号：US13760088

申请日：2013-02-06

Applicant: Marvell World Trade Ltd.

Inventor： Ezer Melzer ,  Yu-Ngok Li ,  Adoram Erell ,  Daniel Yellin

IPC: H04B7/02

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/063

Abstract: A method for communication includes configuring a communication system that includes a transmitter and a receiver with first precoding matrices for mapping up to N data streams onto N transmit antenna ports of the transmitter. Each of at least some of the first precoding matrices are derived from respective second and third precoding matrices. The second and third precoding matrices are configured for mapping data onto respective numbers of transmit antenna ports that are less than N. The data streams are mapped onto the N transmit antenna ports using a precoding scheme based on one of the first precoding matrices. The mapped data streams are transmitted over the N transmit antenna ports from the transmitter to the receiver.

Abstract translation: 一种用于通信的方法包括：配置具有第一预编码矩阵的发射机和接收机的通信系统，用于将多达N个数据流映射到发射机的N个发射天线端口。 至少一些第一预编码矩阵中的每一个从相应的第二和第三预编码矩阵导出。 第二和第三预编码矩阵被配置用于将数据映射到小于N的发射天线端口的相应数量上。使用基于第一预编码矩阵之一的预编码方案将数据流映射到N个发射天线端口。 映射的数据流通过N个发射天线端口从发射机发射到接收机。

公开(公告)号：US08670719B2

公开(公告)日：2014-03-11

申请号：US14028558

申请日：2013-09-17

Applicant: Marvell World Trade Ltd.

Inventor： Itsik Bergel ,  Shlomo Shamai ,  Daniel Yellin ,  Yona Perets

IPC: H04B1/00 ,  H04B15/00 ,  H04B7/00 ,  H04B17/00 ,  H04B1/04 ,  H03C1/62 ,  H04B1/18 ,  H04B1/06 ,  H04B1/10

CPC classification number: H04B7/0417 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0695

Abstract: A method for communication includes receiving at a receiver from a group of two or more transmitters multiple Radio Frequency (RF) transmission beams that alternate in time and space and include at least first and second transmission beams. The method identifies that the first transmission beam causes interference to reception of the second transmission beam. Feedback is sent from the receiver to one or more of the transmitters, so as to cause the transmitters to attenuate the first transmission beam during transmission of the second transmission beam.

Abstract translation: 一种用于通信的方法包括在两个或多个发射机的一组接收机处接收在时间和空间中交替并包括至少第一和第二传输波束的多个射频（RF）传输波束。 该方法识别第一发射波束对第二发射波束的接收造成干扰。 反馈从接收机发送到一个或多个发射机，以便在第二传输波束的传输期间使发射机衰减第一传输波束。

公开(公告)号：US09781611B2

公开(公告)日：2017-10-03

申请号：US13850856

申请日：2013-03-26

Applicant: Marvell World Trade Ltd.

Inventor： Daniel Yellin

IPC: H04W24/02 ,  H04W52/32 ,  H04W52/42 ,  H04L25/02

CPC classification number: H04W24/02 ,  H04L25/0224 ,  H04W52/325 ,  H04W52/42

Abstract: A device includes a receiver, a determiner, and a demodulator. The receiver is configured to receive from a base station a reference signal having a power level such that a sum of the power level and a processing gain of a channel estimator of the device corresponds to a predetermined demodulation penalty for the device. The determiner is configured to determine the power level. The demodulator is configured to demodulate a data signal received from the base station based on the power level and a channel estimate generated based on the reference signal.

公开(公告)号：US09628163B2

公开(公告)日：2017-04-18

申请号：US14639140

申请日：2015-03-05

Applicant: Marvell World Trade Ltd.

Inventor： Ezer Melzer ,  Daniel Yellin

IPC: H03D3/22 ,  H04J3/04 ,  H04B7/06 ,  H04L9/06 ,  H04B7/08

CPC classification number: H04B7/0626 ,  H04B7/063 ,  H04B7/0854 ,  H04L9/06

Abstract: A method includes, in a receiver, receiving a signal carrying data using multiple antennas, so as to produce multiple respective input signals. The input signals are divided into two or more subsets. The input signals within each of the subsets are combined in a first diversity-combining stage, to produce respective intermediate signals. In a second diversity-combining stage, the intermediate signals are combined to produce an output signal. The output signal is decoded so as to reconstruct the data carried by the received signal.

公开(公告)号：US20130156123A1

公开(公告)日：2013-06-20

申请号：US13766790

申请日：2013-02-14

Applicant: Marvell World Trade Ltd.

Inventor： Yona Perets ,  Krishna Srikanth Gomadam ,  Adoram Erell ,  Daniel Yellin ,  Ezer Melzer

IPC: H04B7/04

CPC classification number: H04B7/0473 ,  H04L1/0009 ,  H04L1/0656 ,  H04L1/0675 ,  H04L5/0025

Abstract: A method for communication includes, in a transmitter having a first number of transmit antenna ports, setting an upper limit on a second number of spatial layers to be used by the transmitter to be less than the first number. An actual number of the spatial layers, which does not exceed the upper limit, is allocated for transmission to a given receiver. One or more streams of modulated symbols are mapped onto the allocated actual number of the spatial layers. The actual number of the spatial layers are transmitted from the transmitter to the given receiver.

Abstract translation: 一种用于通信的方法包括：在具有第一数量的发射天线端口的发射机中，将发射机使用的第二数量的空间层的上限设置为小于第一数量。 空间层的实际数量（不超过上限）被分配用于传送给给定的接收机。 调制符号的一个或多个流被映射到所分配的实际数量的空间层上。 空间层的实际数量从发射机发射到给定的接收机。

公开(公告)号：US20130059596A1

公开(公告)日：2013-03-07

申请号：US13669481

申请日：2012-11-06

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Krishna Srikanth Gomadam ,  Adoram Erell ,  Daniel Yellin

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04B17/24

Abstract: A method includes, in a mobile communication terminal, receiving from at least first and second base stations, which cooperate in a coordinated transmission scheme, signals that are transmitted over respective first and second communication channels. Respective channel measures are calculated for the communication channels based on the received signals. First and second feedback data, which are indicative of the respective channel measures of the first and second communication channels, are formulated such that the first feedback data has a first data size and the second feedback data has a second data size, different from the first data size. The first and second feedback data are transmitted from the mobile communication terminal to at least one of the base stations.

Abstract translation: 一种方法包括在移动通信终端中，从协调传输方案中协作的至少第一和第二基站接收在各个第一和第二通信信道上发送的信号。 基于接收到的信号，为通信信道计算各个信道量度。 表示第一和第二通信信道的相应信道测量值的第一和第二反馈数据被配置为使得第一反馈数据具有第一数据大小，并且第二反馈数据具有与第一数据大小不同的第二数据大小 数据大小。 第一和第二反馈数据从移动通信终端发送到至少一个基站。