公开(公告)号：US09065709B1

公开(公告)日：2015-06-23

申请号：US14076129

申请日：2013-11-08

Applicant: Marvell International Ltd.

Inventor： Jungwon Lee ,  Dimitrios-Alexandros Toumpakaris ,  Hui-Ling Lou ,  Chris Cheng-Chieh Lee

IPC: H04B1/16 ,  H04L27/233

CPC classification number: H04L27/2334 ,  H04B1/1653 ,  H04H20/34 ,  H04H40/18 ,  H04H2201/13

Abstract: Methods and apparatus are provided for receiving a first signal and generating an output signal indicative of radio data system (“RDS”) information. A receiver circuit of the invention can include mixer circuitry, lowpass filter circuitry, downsampler circuitry, and decoder circuitry. Advantageously, the receiver circuit can operate entirely within the digital domain, promoting interoperability with digital frequency modulation (“FM”) demodulator circuitry.

Abstract translation: 提供了用于接收第一信号并产生指示无线电数据系统（“RDS”）信息的输出信号的方法和装置。 本发明的接收机电路可以包括混频器电路，低通滤波器电路，下采样器电路和解码器电路。 有利地，接收器电路可以完全在数字域内操作，促进与数字频率调制（“FM”）解调器电路的互操作性。

公开(公告)号：US09036743B1

公开(公告)日：2015-05-19

申请号：US14215636

申请日：2014-03-17

Applicant: Marvell International Ltd.

Inventor： Hui-Ling Lou ,  Kok-Wui Cheong

IPC: H04L27/06 ,  H04L1/00

CPC classification number: H04L1/0052 ,  H03M13/4107 ,  H03M13/6331 ,  H04L1/0054

Abstract: A system for performing maximum ratio combining on a plurality of symbols corresponding to a transmitted symbol. A plurality of antennas is configured to receive, via respective communication channels, respective ones of the plurality of symbols. An automatic gain control is configured to modify each of the plurality of symbols using a respective gain. The respective gains are different for each of the plurality of symbols. A channel estimator is configured to generate, for each of the respective communication channels, a channel estimate in accordance with a respective one of the plurality of symbols as modified using the respective gain. A demodulator is configured to generate, in accordance with the channel estimates and the plurality of symbols as modified using the respective gains, a maximum ratio combining output and demodulate the maximum ratio combining output to generate a demodulated plurality of symbols.

Abstract translation: 一种用于在对应于所发送的符号的多个符号上执行最大比率组合的系统。 多个天线被配置为经由相应的通信信道接收多个符号中的相应的一个。 自动增益控制被配置为使用相应的增益来修改多个符号中的每一个。 对于多个符号中的每一个，相应的增益是不同的。 信道估计器被配置为针对每个相应的通信信道，根据使用相应增益修改的多个符号中的相应一个符号来生成信道估计。 解调器被配置为根据信道估计和使用相应增益修改的多个符号，生成最大比合并输出并解调最大比合并输出以产生经解调的多个符号。

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：US09001640B1

公开(公告)日：2015-04-07

申请号：US14281368

申请日：2014-05-19

Applicant: Marvell International LTD.

Inventor： Jungwon Lee ,  Hui-Ling Lou

IPC: H04J11/00 ,  H04L1/06 ,  H04B7/04

CPC classification number: H04J11/0063 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0615 ,  H04B7/0885 ,  H04L1/0606 ,  H04L27/2626 ,  H04L27/2647

Abstract: A physical layer device including a mapping module to map a plurality of data streams to a plurality of transmit antennas. Each transmit antenna is associated with a respective radio frequency channel. A first gain module communicates with a first transmit antenna, receives a first plurality of signals generated based on the plurality of data streams, and applies a first complex gain corresponding to the first transmit antenna to each of the first plurality of signals. A second gain module communicates with a second transmit antenna, receives a second plurality of signals generated based on the plurality of data streams, and applies a second complex gain corresponding to the second transmit antenna to each of the second plurality of signals. The second plurality of signals is different than the first plurality of signals. The second complex gain is different than the first complex gain.

Abstract translation: 一种物理层设备，包括将多个数据流映射到多个发射天线的映射模块。 每个发射天线与相应的射频信道相关联。 第一增益模块与第一发射天线进行通信，接收基于多个数据流生成的第一多个信号，并将对应于第一发射天线的第一复数增益应用于第一多个信号中的每一个。 第二增益模块与第二发射天线进行通信，接收基于多个数据流产生的第二多个信号，并将对应于第二发射天线的第二复数增益应用于第二多个信号中的每一个。 第二多个信号与第一多个信号不同。 第二个复数增益与第一个复数增益不同。

公开(公告)号：US08949683B1

公开(公告)日：2015-02-03

申请号：US14242091

申请日：2014-04-01

Applicant: Marvell International Ltd.

Inventor： Yakun Sun ,  Jihwan P. Choi ,  Jiwoong Choi ,  Hui-Ling Lou

IPC: H03M13/00 ,  H04L1/00 ,  H03M13/29 ,  H03M13/09 ,  H03M13/37

CPC classification number: H04L1/0054 ,  H03M13/09 ,  H03M13/27 ,  H03M13/29 ,  H03M13/3738 ,  H03M13/3746 ,  H03M13/3776 ,  H03M13/6331 ,  H04J11/004 ,  H04L1/208 ,  H04L25/03891 ,  H04L25/067 ,  H04L2025/03426

Abstract: A system including a first receiver to receive a first signal including a first set of codewords and to generate a first set of decoded codewords by decoding one or more codewords of the first set of codewords. A first interference canceller measures first reliability metrics of codewords corresponding to the first set of decoded codewords and selects a second set of decoded codewords from the first set of decoded codewords based on the first reliability metrics. An encoder generates an encoded signal by encoding the second set of decoded codewords. A modulator generates a second signal by modulating the encoded signal. A subtractor subtracts a portion of the second signal from the first signal to cancel interference of first codewords corresponding to the second set of decoded codewords on codewords other than the first codewords in the first set of codewords in the first signal.

Abstract translation: 一种系统，包括：第一接收机，用于接收包括第一组码字的第一信号，并通过解码第一组码字集合的一个或多个码字来生成第一组解码码字。 第一干扰消除器测量对应于第一组解码码字的码字的第一可靠性度量，并且基于第一可靠性度量从第一组解码码字中选择第二组解码码字。 编码器通过对第二组解码码字进行编码来生成编码信号。 调制器通过调制编码信号来产生第二信号。 减法器从第一信号中减去第二信号的一部分，以消除第一信号中的第一组码字中除第一码字之外的码字上对应于第二解码码字集合的第一码字的干扰。

公开(公告)号：US08781486B1

公开(公告)日：2014-07-15

申请号：US13646461

申请日：2012-10-05

Applicant: Marvell International Ltd.

Inventor： Jihwan P. Choi ,  Ying Cai ,  Jiwoong Choi ,  Hui-Ling Lou

IPC: G06F15/16

CPC classification number: H04W28/16 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006

Abstract: In a wireless communication system including a plurality of client stations including at least one client station that is not configured to utilize carrier aggregation, different coverage areas correspond to different frequency bands being utilized. Wireless medium resources are allocated and frequency band(s) are assigned, jointly, to the client stations based on one or more coverage areas corresponding to one or more frequency bands in which each client station is located, whether client stations are configured to utilize carrier aggregation, demand factors, and indications of channel quality.

Abstract translation: 在包括多个客户端站的无线通信系统中，包括至少一个不配置为利用载波聚合的客户端站，不同的覆盖区域对应于正在利用的不同频带。 基于与每个客户站所在的一个或多个频带相对应的一个或多个覆盖区域，分配无线介质资源并将频带共同地分配给客户站，客户站是否被配置为利用载波 聚合，需求因素和渠道质量指标。

公开(公告)号：US08781036B1

公开(公告)日：2014-07-15

申请号：US13686478

申请日：2012-11-27

Applicant: Marvell International Ltd.

Inventor： Jungwon Lee ,  Hui-Ling Lou

IPC: H04L27/06

CPC classification number: H04L25/022 ,  H04L25/0224 ,  H04L27/261

Abstract: A system including an input module, a first gain module, a second gain module, and a preamble estimation module. The input module is configured to receive an input signal from a station. The input signal includes (i) a first preamble sequence, and (ii) subcarriers. The first gain module is configured to, based on the input signal, generate first channel gain values. Each of the first channel gain values is for a respective one of the subcarriers. A second gain module is configured to, based on the first channel gain values, generate second channel gain values. A preamble estimation module is configured to estimate the first preamble sequence based on (i) the first channel gain values, and (ii) the second channel gain values.

Abstract translation: 一种包括输入模块，第一增益模块，第二增益模块和前导码估计模块的系统。 输入模块被配置为从站接收输入信号。 输入信号包括（i）第一前序序列，和（ii）子载波。 第一增益模块被配置为基于输入信号产生第一通道增益值。 第一通道增益值中的每一个用于副载波中的相应一个。 第二增益模块被配置为基于第一通道增益值产生第二通道增益值。 前导码估计模块被配置为基于（i）第一信道增益值和（ii）第二信道增益值来估计第一前同步码序列。

公开(公告)号：US08705600B1

公开(公告)日：2014-04-22

申请号：US13854937

申请日：2013-04-01

Applicant: Marvell International Ltd.

Inventor： Leilei Song ,  Rohit U. Nabar ,  Hui-Ling Lou ,  Kedar Shirali

IPC: H04B3/46

CPC classification number: H04L27/0008 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0036 ,  H04L27/22 ,  H04L27/38

Abstract: One or more communications parameters associated with a multiple input, multiple output (MIMO) signal transmitted by a transmitter are identified. The one or more communications parameters include one or more of (i) a number of receive antennas via which the MIMO signal is received, (ii) a number of spatial streams in the MIMO signal, and (iii) a signal to noise ratio (SNR) corresponding to the MIMO signal. A particular data detection technique of a plurality of data detection techniques employed by a receiver is selected in accordance with at least one of the one or more communications parameters.

Abstract translation: 识别与由发射机发射的多输入多输出（MIMO）信号相关联的一个或多个通信参数。 所述一个或多个通信参数包括以下中的一个或多个：（i）接收MIMO信号的多个接收天线，（ii）MIMO信号中的多个空间流，以及（iii）信噪比（ SNR）。 根据一个或多个通信参数中的至少一个来选择由接收机采用的多个数据检测技术的特定数据检测技术。

公开(公告)号：US08638887B1

公开(公告)日：2014-01-28

申请号：US13735781

申请日：2013-01-07

Applicant: Marvell International Ltd.

Inventor： Jiwoong Choi ,  Jungwon Lee ,  Hui-Ling Lou

IPC: H04L27/06 ,  H04L27/28

CPC classification number: H04L1/0631 ,  H04B7/0413 ,  H04L1/0054 ,  H04L25/067 ,  H04L27/2647 ,  H04L27/34

Abstract: In a method of demodulating a signal transmitted via a multiple input multiple output (MIMO) communication channel, a data symbol vector is received, the data symbol vector including a plurality of data symbols that are received via a plurality of antennas. The received data symbol vector corresponds to a transmitted data symbol vector including a plurality of transmitted data symbols. A plurality of candidate vectors are generated for the transmitted data symbol vector, the plurality of candidate vectors being less than all possible vectors for the transmitted data symbol vector. One candidate vector is selected from the plurality of candidate vectors such that the one candidate vector minimizes a distance value corresponding to a Euclidean distance between the received data symbol vector and a channel estimate matrix multiplied with the candidate vector.

Abstract translation: 在解调通过多输入多输出（MIMO）通信信道发送的信号的方法中，接收数据符号向量，该数据符号向量包括经由多个天线接收的多个数据符号。 接收到的数据符号向量对应于包括多个发送数据符号的发送数据符号向量。 为发送的数据符号向量生成多个候选向量，多个候选向量小于所发送的数据符号向量的所有可能向量。 从多个候选向量中选择一个候选向量，使得一个候选向量使与所接收的数据符号向量和与候选向量相乘的信道估计矩阵之间的欧几里德距离相对应的距离值最小化。

公开(公告)号：US08594574B1

公开(公告)日：2013-11-26

申请号：US13681200

申请日：2012-11-19

Applicant: Marvell International Ltd.

Inventor： Jungwon Lee ,  Dimitrios-Alexandros Toumpakaris ,  Hui-Ling Lou ,  Chris Cheng-Chieh Lee

IPC: H04B1/16

CPC classification number: H04L27/2334 ,  H04B1/1653 ,  H04H20/34 ,  H04H40/18 ,  H04H2201/13

Abstract: Methods and apparatus are provided for receiving a first signal and generating an output signal indicative of radio data system (“RDS”) information. A receiver circuit of the invention can include mixer circuitry, lowpass filter circuitry, downsampler circuitry, and decoder circuitry. Advantageously, the receiver circuit can operate entirely within the digital domain, promoting interoperability with digital frequency modulation (“FM”) demodulator circuitry.