公开(公告)号：US09402238B1

公开(公告)日：2016-07-26

申请号：US14660724

申请日：2015-03-17

Applicant: Marvell International Ltd.

Inventor： Yakun Sun ,  Liwen Chu ,  Hongyuan Zhang ,  Hui-Ling Lou ,  Lei Wang ,  Jinjing Jiang

IPC: H04B7/00 ,  H04W52/24 ,  H04W52/02 ,  H04W88/08

CPC classification number: H04W52/243 ,  H04W52/0206 ,  H04W52/143 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142

Abstract: A wireless communication system includes a first wireless access point, and a first set of at least one first station in wireless communication with the first wireless access point. The first wireless access point controls power for communications with a first station in the set of at least one first station. The first wireless access point may control power in a time-domain, announcing a power level for use during a time window. The first wireless access point may control power levels in a frequency-domain, announcing different power levels for different frequency subchannels within a frequency channel. The wireless communication system may further include an additional wireless access point, and an additional set of at least one additional station in wireless communication with the additional wireless access point. The first and additional wireless access points control power to avoid interference between the first and additional wireless access points.

Abstract translation: 无线通信系统包括第一无线接入点和与第一无线接入点无线通信的至少一个第一站的第一组。 第一无线接入点控制与至少一个第一站的集合中的第一站的通信的电力。 第一个无线接入点可以控制时域中的功率，在时间窗口内宣布使用功率电平。 第一无线接入点可以控制频域中的功率电平，通知频率信道内的不同频率子信道的不同功率电平。 无线通信系统还可以包括附加的无线接入点和与附加无线接入点进行无线通信的至少一个附加站的附加集合。 第一和另外的无线接入点控制电力以避免第一和另外的无线接入点之间的干扰。

公开(公告)号：US09337944B1

公开(公告)日：2016-05-10

申请号：US13800215

申请日：2013-03-13

Applicant: Marvell International Ltd.

Inventor： Hui-Ling Lou

IPC: H04B1/16 ,  H04H40/36 ,  H04H40/45 ,  H04H20/48

CPC classification number: H04H20/48 ,  H04B1/1669 ,  H04H40/45

Abstract: Systems and techniques for digital processing of FM stereo signals are described. According to an aspect, a method includes determining whether a received digital signal is a mono signal or a stereo signal, using a digital signal processor to process the received digital signal based on stereo transmission when the received digital signal is determined to be a stereo signal, and using the same digital signal processor to process the received digital signal based on mono transmission when the received digital signal is determined to be a mono signal.

Abstract translation: 描述了用于FM立体声信号的数字处理的系统和技术。 根据一个方面，一种方法包括：当所接收的数字信号被确定为立体声信号时，使用数字信号处理器来基于立体声传输来确定所接收的数字信号是单声道信号还是立体声信号 并且当所接收的数字信号被确定为单声道信号时，使用相同的数字信号处理器来基于单声道传输来处理所接收的数字信号。

公开(公告)号：US09301269B1

公开(公告)日：2016-03-29

申请号：US14018135

申请日：2013-09-04

Applicant: Marvell International Ltd.

Inventor： Qing Zhao ,  Chusong Xiao ,  Manyuan Shen ,  Hui-Ling Lou ,  Leilei Song

IPC: H04W56/00 ,  H04L27/26 ,  H04J11/00

CPC classification number: H04W56/001 ,  H04J11/0073 ,  H04L27/2655 ,  H04L27/2663 ,  H04L27/2671 ,  H04L27/2675

Abstract: The present disclosure describes systems and techniques relating to wireless communications. According to an aspect of the described systems and techniques, an apparatus includes: circuitry configured to receive wireless communication transmissions having periodic synchronization signals transmitted at a fixed interval, wherein the periodic synchronization signals convey information used to establish communication between wireless communication devices; and circuitry configured to acquire the periodic synchronization signals of the wireless communication transmissions by, at least in part, (i) calculating objective function values for hypotheses of parameter sets for a current period, (ii) combining only a portion of the calculated objective function values with stored objective function value data from a prior period to form combined data used in signal acquisition, and (iii) storing the combined data or the portion of the calculated objective function values for use in a next period.

Abstract translation: 本公开描述了与无线通信有关的系统和技术。 根据所描述的系统和技术的一个方面，一种装置包括：被配置为接收具有以固定间隔发送的周期性同步信号的无线通信传输的电路，其中所述周期性同步信号传送用于建立无线通信设备之间的通信的信息; 以及被配置为通过至少部分地（i）计算当前周期的参数集的假设的目标函数值来获取无线通信传输的周期性同步信号的电路，（ii）仅组合所计算的目标函数的一部分 具有来自前一周期的存储的目标函数值数据的值以形成用于信号获取的组合数据，以及（iii）存储组合数据或所计算的目标函数值的部分以用于下一周期。

公开(公告)号：US09258042B1

公开(公告)日：2016-02-09

申请号：US13948001

申请日：2013-07-22

Applicant: Marvell International Ltd.

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

IPC: H04L25/49 ,  H04B7/04

CPC classification number: H04B7/043 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0669 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0054 ,  H04L1/0071 ,  H04L1/06 ,  H04L25/03961

Abstract: A beamforming technique used in a MIMO wireless transmission system determines a transmitter beamforming steering matrix using a matrix equalizer of a transmitter or a receiver within the MIMO communication system, to thereby increase the speed and/or to decrease the processing needed to implement effective beamforming within the transmitter of the communication system. This beamforming technique can be used when a transmitter, with multiple transmitter antennas, is used to communicate with one or with multiple receivers within the communication system.

Abstract translation: 在MIMO无线传输系统中使用的波束成形技术使用MIMO通信系统内的发射机或接收机的矩阵均衡器确定发射机波束成形导引矩阵，从而提高速度和/或减少实现有效波束成形所需的处理 通信系统的发射机。 当具有多个发射机天线的发射机用于与通信系统内的一个或多个接收机通信时，可以使用该波束成形技术。

公开(公告)号：US09247507B1

公开(公告)日：2016-01-26

申请号：US14691131

申请日：2015-04-20

Applicant: Marvell International LTD.

Inventor： Jihwan P. Choi ,  Hui-Ling Lou ,  Ying Cai ,  Leilei Song ,  Vladan Petrovic

IPC: H04W52/00 ,  H04W52/38 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04B7/0486 ,  H04W52/26 ,  H04W52/265 ,  H04W52/346 ,  H04W52/38 ,  H04W72/0453 ,  H04W84/12

Abstract: Apparatus having corresponding methods and computer-readable media comprise: a transmitter configured to transmit, according to a first protocol, first wireless signals in a first frequency band; and a receiver configured to receive, according to a second protocol, second wireless signals in a second frequency band, wherein the second frequency band is adjacent to or overlaps the first frequency band; and an arbiter configured to allow the transmitter to transmit the first wireless signals according to the first protocol while the receiver receives the second wireless signals according to the second protocol responsive to at least one of i) a signal power level of the first wireless signals being less than a first signal power threshold; and ii) a signal power level of the second wireless signals being greater than a second signal power threshold.

公开(公告)号：US09246621B1

公开(公告)日：2016-01-26

申请号：US14679630

申请日：2015-04-06

Applicant: Marvell International LTD.

Inventor： Jungwon Lee ,  Hui-Ling Lou

IPC: H04J11/00 ,  H04B7/08 ,  H04B7/04 ,  H04L27/26 ,  H04L1/06

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

Abstract: A system including a first gain module and a second gain module. The first gain module is configured to receive first signals generated based on a plurality of data streams mapped to a plurality of antennas including a first antenna and a second antenna, and to apply a first gain corresponding to the first antenna to the first signals. The second gain module is configured to receive second signals generated based on the plurality of data streams, and to apply a second gain corresponding to the second antenna to the second signals. The second signals are different than the first signals. The second gain is different than the first gain.

Abstract translation: 一种包括第一增益模块和第二增益模块的系统。 第一增益模块被配置为接收基于映射到包括第一天线和第二天线的多个天线的多个数据流生成的第一信号，并且将对应于第一天线的第一增益应用于第一信号。 第二增益模块被配置为接收基于多个数据流生成的第二信号，并且将对应于第二天线的第二增益应用于第二信号。 第二信号与第一信号不同。 第二增益与第一增益不同。

公开(公告)号：US09215049B1

公开(公告)日：2015-12-15

申请号：US14664601

申请日：2015-03-20

Applicant: Marvell International Ltd.

Inventor： Hui-Ling Lou ,  Bhaskar Nallapureddy ,  Atul Salhotra

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0023 ,  H04B1/38 ,  H04B7/068 ,  H04L1/0071 ,  H04L5/0044 ,  H04L27/2637 ,  H04W72/04

Abstract: Systems and techniques relating to processing multiple data streams include, according to at least one implementation, an apparatus including a parser for a MIMO mode; an interleaver section coupled with the parser, configured to perform separate interleaving of bit streams during the MIMO mode, wherein a first portion of the interleaver section that handles a first of the two or more second bit streams employs a same interleaver operation as during a SISO mode of transmission; a subcarrier mapping section configured to perform separate mapping of subcarriers during the MIMO mode; and a transmit back end coupled with the subcarrier mapping section to connect with multiple antennas, the transmit back end configured to apply different rotations to dynamically changed second, third, and fourth ones of the two or more second bit streams transmitted over the multiple antennas during the MIMO mode to improve transmission robustness and transmission data rate.

Abstract translation: 根据至少一个实现，涉及处理多个数据流的系统和技术包括：包括用于MIMO模式的解析器的装置; 与所述解析器耦合的交织器部分，被配置为在所述MIMO模式期间执行比特流的单独交织，其中处理所述两个或更多个第二比特流中的第一比特流的交织器部分的第一部分采用与SISO期间相同的交织器操作 传输方式; 子载波映射部分，被配置为在MIMO模式期间执行子载波的分离映射; 以及与所述子载波映射部分耦合以与多个天线连接的发射后端，所述发射后端被配置为将不同的旋转应用于在所述多个天线上发射的所述两个或更多个第二比特流中的动态改变的第二，第三和第四比特流 MIMO模式提高传输鲁棒性和传输数据速率。

公开(公告)号：US09106371B1

公开(公告)日：2015-08-11

申请号：US14221997

申请日：2014-03-21

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Jungwon Lee ,  Jihwan P. Choi ,  Hui-Ling Lou

IPC: H04B15/00 ,  H04L1/00 ,  H04W24/08

CPC classification number: H04L1/0019 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/203 ,  H04L5/0007 ,  H04L5/0046 ,  H04W24/08

Abstract: In a method implemented in a communication device, an interference metric associated with a communication link is determined. Determining the interference metric includes obtaining a plurality of measurements indicative of quality of the communication link, and calculating the interference metric using (i) a mean of the plurality of measurements and (ii) a standard deviation of the plurality of measurements. A modulation and coding scheme is selected based on at least the interference metric, and at least one packet is caused to be modulated and coded according to the selected modulation and coding scheme prior to transmission over the communication link.

Abstract translation: 在通信设备中实现的方法中，确定与通信链路相关联的干扰度量。 确定干扰度量包括获得指示通信链路的质量的多个测量，以及使用（i）多个测量的平均值和（ii）多个测量的标准偏差来计算干扰度量。 基于至少干扰度量来选择调制和编码方案，并且在通过通信链路进行传输之前，根据所选择的调制和编码方案使至少一个分组被调制和编码。

公开(公告)号：US09094063B1

公开(公告)日：2015-07-28

申请号：US13846361

申请日：2013-03-18

Applicant: MARVELL INTERNATIONAL LTD.

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

IPC: H04B7/02 ,  H04B7/08 ,  H04L1/06 ,  H04L27/06 ,  H04B7/04

CPC classification number: H04B7/0413 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/06 ,  H04L25/03242 ,  H04L25/067

Abstract: A method of decoding a signal transmitted via a multiple input multiple output (MIMO) communication channel. The method includes receiving a data symbol vector having a plurality of data symbols received via a plurality of spatial streams. The received data symbol vector corresponds to a transmitted data symbol vector having a plurality of transmitted data symbols corresponding to the plurality of data symbols. The method also includes estimating, using a hard-decision technique, one or more respective values for one or more first transmitted data symbols in a first set of one or more spatial streams. The method additionally includes calculating, using a soft-decision technique and based on the estimated one or more respective values for the one or more first transmitted data symbols, likelihood values for bits corresponding to one or more second transmitted data symbols in a second set of one or more spatial streams.

Abstract translation: 一种对通过多输入多输出（MIMO）通信信道发送的信号进行解码的方法。 该方法包括接收经由多个空间流接收的具有多个数据符号的数据符号向量。 所接收的数据符号向量对应于具有对应于多个数据符号的多个发送数据符号的发送数据符号向量。 该方法还包括使用硬判决技术估计在一个或多个空间流的第一组中的一个或多个第一发送数据符号的一个或多个相应值。 该方法另外包括使用软判决技术并且基于所估计的一个或多个第一发送数据符号的相应值来计算与第一组中的一个或多个第一发送数据符号中的一个或多个第二发送数据符号相对应的位的似然值 一个或多个空间流。

公开(公告)号：US09071295B1

公开(公告)日：2015-06-30

申请号：US14258326

申请日：2014-04-22

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Jungwon Lee ,  Hui-Ling Lou

IPC: H03D1/00 ,  H04L27/06 ,  H04B7/04

CPC classification number: H04B7/0413 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0631 ,  H04L25/03305 ,  H04L25/03318 ,  H04L25/03891

Abstract: In a method for decoding plurality of information streams corresponding to a plurality of layers, where the plurality of information streams have been transmitted via a multiple input multiple output (MIMO) communication channel, a plurality of received signals are processed to decode information corresponding to a first layer. A plurality of modified received signals are generated using the decoded information corresponding to the first layer and the plurality of received signals. Bit metric values are generated for a second layer using MIMO maximum likelihood (ML) demodulation and using the plurality of modified received signals and channel and modulation information for interfering signals. Information corresponding to the second layer is decoded using the generated bit metric values.

Abstract translation: 在多重信息流已经通过多输入多输出（MIMO）通信信道被发送的情况下解码与多个层对应的多个信息流的方法中，处理多个接收到的信号以解码对应于 第一层 使用与第一层和多个接收信号相对应的解码信息来生成多个修改的接收信号。 使用MIMO最大似然（ML）解调并使用多个修改的接收信号和用于干扰信号的信道和调制信息为第二层生成比特量度值。 使用生成的比特度量值对与第二层对应的信息进行解码。