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公开(公告)号：US09344303B1
公开(公告)日：2016-05-17
申请号：US13733154
申请日：2013-01-03
Applicant: Marvell International Ltd.
Inventor： Shimon Moshavi , Rony Ashkenazi , David Ben-Eli , Daniel Yellin
CPC classification number: H04L25/03968 , H04L25/021
Abstract: A method includes, in a mobile communication terminal, storing a mathematical model for computing a covariance matrix of data conveying signals that are received at the mobile communication terminal. At least a first data conveying signal is received in the mobile communication terminal, and one or more signal components required by the model are extracted from the first data conveying signal. A determination is made whether the model is suitable for computing the covariance matrix for the first data conveying signal based on a predefined rule. The covariance matrix is computed in the mobile communication terminal using at least one of the model and an empirical-based estimation of the covariance matrix. The covariance matrix is selected in response to the determination.
Abstract translation: 一种方法包括在移动通信终端中存储用于计算在移动通信终端处接收的传送信号的数据的协方差矩阵的数学模型。 在移动通信终端中接收至少第一数据传送信号，并且从第一数据传送信号中提取模型所需的一个或多个信号分量。 确定模型是否适合于基于预定义的规则来计算第一数据传送信号的协方差矩阵。 在移动通信终端中使用协方差矩阵的模型和基于经验的估计中的至少一个来计算协方差矩阵。 响应于确定来选择协方差矩阵。
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公开(公告)号：US08861662B1
公开(公告)日：2014-10-14
申请号：US14179593
申请日：2014-02-13
Applicant: Marvell International, Ltd.
Inventor： Yona Perets , Daniel Yellin , Ezer Melzer
CPC classification number: H04L1/0022 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0048 , H04W28/18 , H04W72/0413
Abstract: A method includes receiving reference signals in a mobile communication terminal, which is designed to receive data-carrying signals that are transmitted from a base station using one of multiple predefined Modulation and Coding Schemes (MCSs). One or more pre-calculated mappings between Signal-to-Noise Ratio (SNR) and error rate for one or more of the MCSs are held in the communication terminal. The pre-calculated mappings are adjusted according to one or more transmission parameters of the data-carrying signals. Measures indicative of respective actual spectral efficiencies that are achievable by the MCSs are estimated based on the adjusted mappings using the received reference signals. A preferred MCS is selected based on the estimated measures, and feedback that is indicative of the preferred MCS is sent to the base station.
Abstract translation: 一种方法包括在移动通信终端中接收参考信号，该移动通信终端被设计为接收使用多个预定义的调制和编码方案（MCS）中的一种从基站发送的数据携带信号。 在通信终端中保持一个或多个预先计算的一个或多个MCS的信噪比（SNR）和错误率之间的映射。 预先计算的映射根据数据携带信号的一个或多个传输参数进行调整。 基于使用接收到的参考信号的调整后的映射来估计指示MCS可实现的各个实际频谱效率的度量。 基于估计的度量来选择优选的MCS，并且将指示优选MCS的反馈发送到基站。
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公开(公告)号：US09729356B1
公开(公告)日：2017-08-08
申请号：US13662877
申请日：2012-10-29
Applicant: Marvell International Ltd.
Inventor： Kobby Pick , Daniel Yellin , Yona Perets , Adoram Erell
CPC classification number: H04L25/0228 , H04L25/0204 , H04L25/0256 , H04L27/2647
Abstract: A user equipment device operating in a cellular communications system includes a neighbor cell searcher configured to receive a first reference signal transmitted from a base station of a first cell of the cellular communications system and determine first channel information associated with the first cell, and receive a second reference signal transmitted from a base station of a second cell of the cellular communications system and determine second channel information associated with the second cell. A channel estimator is configured to generate correlations between times and frequencies associated with reception of the first reference signal and the second reference signal, and generate a channel estimate corresponding to the first reference signal based on the first channel information, the second channel information, and the correlations.
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4.发明授权公开(公告)号：US09660743B1
公开(公告)日：2017-05-23
申请号：US14836973
申请日：2015-08-27
Applicant: Marvell International Ltd.
Inventor： Rony Ashkenazi , Daniel Yellin , Shimon Moshavi
CPC classification number: H04B17/364 , H04B1/69 , H04L5/0053 , H04L25/0212 , H04L25/0224 , H04L25/024 , H04W24/02
Abstract: A method in a receiver includes receiving a signal that traversed a multipath channel having a channel response, so as to produce a received sequence of samples that are indicative of the channel response. Using a predefined similarity measure, multiple metrics between the received sequence of samples and multiple respective candidate sequences of samples are calculated by the receiver. Each candidate sequence includes a combination of one or more dominant signal components having respective sample delays, and each candidate sequence corresponds to a channel multipath candidate that has one or more channel paths at the respective sample delays. The channel response is estimated by the receiver, by selecting the candidate sequence that best matches the received sequence, the selecting being based on the similarity measure.
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5.发明授权Feedback and user scheduling for multi-user multiple input multiple output (MU-MIMO) system 有权多用户多输入多输出（MU-MIMO）系统的反馈和用户调度公开(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。
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Patent Agency Ranking
公开(公告)号：US08843123B1
公开(公告)日：2014-09-23
申请号：US13670469
申请日：2012-11-07
Applicant: Marvell International Ltd.
Inventor： Yona Perets , Ezer Melzer , Daniel Yellin
IPC: H04W24/00
CPC classification number: H04W36/0083 , H04W88/06
Abstract: Apparatus includes a receiver and a processor. The receiver includes at least first and second processing chains. The processor is configured to select a mode from a set of modes and to operate the receiver in accordance with the selected mode. The set of modes includes a first mode and at least one of a second mode and a third mode. In the first mode the first processing chain is configured to receive and demodulate serving cell signals from at least one serving cell that serves the apparatus, and the second processing chain is configured to receive and measure signals from the one or more neighbor cells. In the second mode the first and second processing chains are configured to receive and demodulate the serving cell signals. In the third mode the first and second processing chains are configured to receive and measure the signals from the neighbor cells.
Abstract translation: 装置包括接收器和处理器。 接收器至少包括第一和第二处理链。 处理器被配置为从一组模式中选择模式并根据所选择的模式来操作接收器。 该组模式包括第一模式和第二模式和第三模式中的至少一个。 在第一模式中，第一处理链被配置为从服务于装置的至少一个服务小区接收和解调服务小区信号，并且第二处理链被配置为从一个或多个相邻小区接收和测量信号。 在第二模式中，第一和第二处理链被配置为接收和解调服务小区信号。 在第三模式中，第一和第二处理链被配置为接收和测量来自相邻小区的信号。
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公开(公告)号：US08787945B1
公开(公告)日：2014-07-22
申请号：US13959412
申请日：2013-08-05
Applicant: Marvell International Ltd.
Inventor： Daniel Yellin , Ronen Mayrench , Yona Perets
CPC classification number: H04W52/0206 , H04W52/0216 , Y02D70/00 , Y02D70/1262 , Y02D70/1264
Abstract: A mobile user equipment includes a user equipment clock and a dual mode time tracker. The clock periodically wakes up the user equipment. The dual mode time tracker uses a serving cell reference signal to correct timing errors of the user equipment clock with respect to a network clock while timing errors remain minimal and otherwise uses a serving cell synchronization signal to correct timing errors of the user equipment clock. The dual mode time tracker also sets a next wakeup time as a function at least of the size of the timing errors.
Abstract translation: 移动用户设备包括用户设备时钟和双模式时间跟踪器。 时钟定时唤醒用户设备。 双模式时间跟踪器使用服务小区参考信号来校正用户设备时钟相对于网络时钟的定时误差，同时定时误差保持最小，否则使用服务小区同步信号来校正用户设备时钟的定时误差。 双模式时间跟踪器还将下一个唤醒时间设置为至少是定时误差的大小的函数。
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公开(公告)号：US08750440B1
公开(公告)日：2014-06-10
申请号：US13953756
申请日：2013-07-30
Applicant: Marvell International Ltd.
Inventor： Ronen Mayrench , Daniel Yellin , Yona Perets
CPC classification number: H04L25/0228 , H04B17/345 , H04L1/0026
Abstract: A method includes receiving at a receiver a signal including reference symbols that is sent over a communication channel from a transmitter to the receiver. A response of the communication channel is estimated by applying one or more weighting values to the reference symbols. A noise correction factor is computed based on the weighting values. An estimate of a noise level in the received signal is computed based on the estimated response of the communication channel and the noise correction factor. The received signal is decoded based on the estimate of the noise level.
Abstract translation: 一种方法包括在接收机处接收包括通过通信信道从发射机发射到接收机的参考符号的信号。 通过对参考符号应用一个或多个加权值来估计通信信道的响应。 基于加权值计算噪声校正因子。 基于通信信道的估计响应和噪声校正因子来计算接收信号中的噪声电平的估计。 接收到的信号根据噪声电平的估计被解码。
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公开(公告)号：US09014119B2
公开(公告)日：2015-04-21
申请号：US13760084
申请日：2013-02-06
Applicant: Marvell International Ltd.
Inventor： Yona Perets , David Ben-Eli , Daniel Yellin
Abstract: A method includes receiving a signal in a communication terminal. A power spectral density, which the signal would have under full-load conditions of a transmitter transmitting the signal, is estimated based on the received signal. An operation is performed in the communication terminal using the estimated power spectral density.
Abstract translation: 一种方法包括在通信终端中接收信号。 基于接收到的信号来估计信号将在发送信号的发射机的满载条件下具有的功率谱密度。 使用估计的功率谱密度在通信终端中进行操作。
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公开(公告)号：US08938016B1
公开(公告)日：2015-01-20
申请号：US14016108
申请日：2013-09-01
Applicant: Marvell International, Ltd.
Inventor： David Ben-Eli , Daniel Yellin
CPC classification number: H04L27/2607 , H04L27/0012
Abstract: A method includes receiving a signal in a frequency band, which is assignable at least to a communication protocol in which Cyclic Prefixes (CP) are added to symbols having a predefined symbol interval. Multiple autocorrelations of the received signal are computed with a fixed time offset that depends on the symbol interval defined in the communication protocol, and the multiple autocorrelations are accumulated to produce a cumulative autocorrelation. An identification is made, based on the cumulative autocorrelation, whether the received signal is formatted in accordance with the communication protocol.
Abstract translation: 一种方法包括在频带中接收信号，该信号至少可分配给其中循环前缀（CP）被添加到具有预定符号间隔的符号的通信协议。 接收信号的多个自相关用固定的时间偏移来计算，该固定时间偏移取决于通信协议中定义的符号间隔，并且多个自相关被累积以产生累积自相关。 基于累积自相关来确定接收到的信号是否根据通信协议进行格式化。
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