公开(公告)号：US08693964B2

公开(公告)日：2014-04-08

申请号：US13769567

申请日：2013-02-18

Applicant: Marvell World Trade Ltd.

Inventor： Rohit U. Nabar ,  Hongyuan Zhang

IPC: H01Q11/12 ,  H04B1/04

CPC classification number: H04B7/0617 ,  H01Q3/40 ,  H03F3/245 ,  H03G3/3042 ,  H04B7/0408 ,  H04W16/28

Abstract: One or more beamsteering matrices are applied to one or more signals to be transmitted via multiple antennas. After the one or more beamsteering matrices are applied to the one or more signals, the plurality of signals is provided to a plurality of power amplifiers coupled to the multiple antennas. Signal energies are determined for the plurality of signals provided to the plurality of power amplifiers, and relative signal energies are determined based on the determined signal energies. Output power levels of the plurality of power amplifiers are adjusted based on the determined relative signal energies.

Abstract translation: 一个或多个波束导向矩阵被施加到要经由多个天线发送的一个或多个信号。 在将一个或多个波束引导矩阵应用于一个或多个信号之后，将多个信号提供给耦合到多个天线的多个功率放大器。 对于提供给多个功率放大器的多个信号确定信号能量，并且基于所确定的信号能量来确定相对信号能量。 基于确定的相对信号能量来调整多个功率放大器的输出功率电平。

公开(公告)号：US20140036895A1

公开(公告)日：2014-02-06

申请号：US13959585

申请日：2013-08-05

Applicant: Marvell World Trade Ltd.

Inventor： Yong Liu ,  Harish Ramamurthy ,  Ken Kinwah Ho ,  Raja Banerjea ,  Hongyuan Zhang

IPC: H04W84/12

CPC classification number: H04W28/06 ,  H04L1/06 ,  H04L1/1614 ,  H04L1/1685 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0064 ,  H04L5/0094 ,  H04L69/324 ,  H04W72/042 ,  H04W84/12

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes obtaining data for a transmission to a wireless communication device. The wireless communication device can be configured to process incoming transmissions based on an aggregate data unit format that specifies signaling for aggregating multiple medium access control (MAC) data units. The technique includes, in a physical (PHY) frame, an aggregate data unit that is based on the data and the aggregate data unit format, the aggregate data unit including a single MAC data unit. The technique includes, in the PHY frame, an indication to signal that the MAC data unit in the aggregate data unit is singular and to cause the wireless communication device to accept the aggregate data unit without a corresponding block acknowledgement agreement.

Abstract translation: 描述与无线通信相关的系统和技术。 所描述的技术包括获得用于向无线通信设备发送的数据。 无线通信设备可以被配置为基于指定用于聚合多个媒体访问控制（MAC）数据单元的信令的聚合数据单元格式来处理传入传输。 该技术在物理（PHY）帧中包括基于数据和聚合数据单元格式的聚合数据单元，聚合数据单元包括单个MAC数据单元。 该技术在PHY帧中包括用于表明聚合数据单元中的MAC数据单元是奇异的并且使无线通信设备接受聚合数据单元而没有相应的块确认协议的指示。

公开(公告)号：US20140003384A1

公开(公告)日：2014-01-02

申请号：US14015722

申请日：2013-08-30

Applicant: Marvell World Trade Ltd.

Inventor： Hongyuan Zhang ,  Hui-Ling Lou ,  Rohit U. Nabar ,  Yong Liu

IPC: H04L5/00

CPC classification number: H04B7/0456 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0697 ,  H04L5/0048

Abstract: Systems, apparatuses, and techniques relating to wireless local area network devices are described. A described technique includes transmitting a sounding packet to wireless communication devices; receiving, in response to the sounding packet, feedback packets from the wireless communication devices, wherein the feedback packets are indicative of beamforming matrices, the beamforming matrices being derived from received versions of the sounding packet; determining steering matrices based on the beamforming matrices; generating spatially steered data packets for the wireless communication devices based respectively on the steering matrices and data streams intended respectively for the wireless communication devices; and transmitting, within a frame, the spatially steered data packets to the wireless communications devices, wherein the spatially steered data packets concurrently provide the data streams respectively within the frame to the wireless communication devices via different spatial wireless channels.

Abstract translation: 描述与无线局域网设备相关的系统，设备和技术。 所描述的技术包括向无线通信设备发送探测分组; 响应于所述探测分组，从所述无线通信设备接收反馈分组，其中所述反馈分组指示波束形成矩阵，所述波束形成矩阵从所述探测分组的接收版本导出; 基于所述波束形成矩阵确定导向矩阵; 基于分别用于无线通信设备的导向矩阵和数据流，为无线通信设备生成空间转向的数据分组; 以及在帧内将所述空间转向的数据分组发送到所述无线通信设备，其中所述空间转向数据分组在所述帧内分别通过不同的空间无线信道向所述无线通信设备提供所述数据流。

公开(公告)号：US20130272179A1

公开(公告)日：2013-10-17

申请号：US13830672

申请日：2013-03-14

Applicant: Marvell World Trade Ltd.

Inventor： Yong Liu ,  Harish Ramamurthy ,  Ken Kinwah Ho ,  Raja Banerjea ,  Hongyuan Zhang

IPC: H04W84/12

CPC classification number: H04W28/06 ,  H04L1/06 ,  H04L1/1614 ,  H04L1/1685 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0064 ,  H04L5/0094 ,  H04L69/324 ,  H04W72/042 ,  H04W84/12

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes generating a physical frame and causing a transmission of the physical frame to the wireless communication device. The physical frame includes (i) one or more medium access control data units that encapsulate data for a wireless communication device, (ii) a medium access control layer pad that includes one or more padding delimiters, and (iii) a physical layer pad, wherein a length of the medium access control layer pad and a length of the physical layer pad are based on the physical frame. The one or more padding delimiters can include an end-of-frame flag to inform the wireless communication device to stop receiving a remaining portion of the physical frame.

Abstract translation: 描述与无线通信相关的系统和技术。 所描述的技术包括产生物理帧并且将物理帧传送到无线通信设备。 物理帧包括（i）封装无线通信设备的数据的一个或多个介质访问控制数据单元，（ii）包括一个或多个填充定界符的介质访问控制层焊盘，以及（iii）物理层焊盘， 其中所述介质访问控制层焊盘的长度和所述物理层焊盘的长度基于所述物理帧。 一个或多个填充分隔符可以包括帧结束标志，以通知无线通信设备停止接收物理帧的剩余部分。

公开(公告)号：US20130201835A1

公开(公告)日：2013-08-08

申请号：US13794158

申请日：2013-03-11

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Raja Banerjea ,  Yong Liu ,  Hongyuan Zhang ,  Harish Ramamurthy ,  Sudhir Srinivasa

IPC: H04W72/04

CPC classification number: H04W74/08 ,  H04L1/1614 ,  H04L1/1685 ,  H04W24/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/002 ,  H04W74/0816 ,  H04W84/12

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes monitoring wireless communication channels, including a first channel and a second channel, to produce a monitoring output, determining a first transmission period for the first channel by applying a first waiting period duration and a second waiting period duration to the monitoring output, determining a second transmission period for the second channel by applying the first waiting period duration and the second waiting period duration to the monitoring output, causing, based on the first transmission period, a first transmission on the first channel to reserve the group of wireless communication channels; causing, based on the second transmission period, a second transmission on the second channel; and monitoring, after the end of the first transmission period, for an acknowledgement(s), An end of the second transmission period can be aligned with an end of the first transmission period.

Abstract translation: 描述与无线通信相关的系统和技术。 所描述的技术包括监视包括第一信道和第二信道的无线通信信道以产生监视输出，通过向监视输出应用第一等待周期持续时间和第二等待周期持续时间来确定第一信道的第一传输周期 通过将第一等待周期持续时间和第二等待周期持续时间应用于监视输出来确定第二信道的第二传输周期，使得基于第一传输周期在第一信道上进行第一传输以保留无线组 沟通渠道; 基于所述第二传输周期，在所述第二信道上进行第二传输; 并且在第一传输周期结束之后对于确认进行监视，第二传输周期的结束可以与第一传输周期的结束对齐。

公开(公告)号：US20130177004A1

公开(公告)日：2013-07-11

申请号：US13739657

申请日：2013-01-11

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Sudhir Srinivasa ,  Hongyuan Zhang ,  Yong Liu

IPC: H04L29/06

CPC classification number: H04L29/0653 ,  H04L1/0008 ,  H04L1/0041 ,  H04L1/0079 ,  H04L1/1671 ,  H04L5/0091 ,  H04L27/00

Abstract: In a method for generating a data unit, a signal field is generated to include a first subfield having one of: a length indication to indicate a number of bytes in a data portion of the data unit, or a duration indication to indicate a number of OFDM symbols in the data portion of the data unit and a second subfield to indicate whether the first subfield includes the length indication or the duration indication. When the first subfield includes the length indication, one or more padding bits are added to a set of information bits according to a first padding scheme. When the first subfield includes the duration indication, one or more padding bits are added to the set of information bits to according to a second padding scheme. Padded information bits are encoded, and the data unit is generated to included the encoded information bits.

Abstract translation: 在用于产生数据单元的方法中，生成信号字段以包括具有以下之一的第一子场：指示数据单元的数据部分中的字节数的长度指示，或表示数据单元的数量的持续时间指示 数据单元的数据部分中的OFDM符号和第二子字段，以指示第一子字段是否包括长度指示或持续时间指示。 当第一子字段包括长度指示时，根据第一填充方案将一个或多个填充比特添加到一组信息比特。 当第一子场包括持续时间指示时，根据第二填充方案将一个或多个填充比特添加到该组信息比特。 编码填充信息比特，生成数据单元以包含编码信息比特。

公开(公告)号：US20130154881A1

公开(公告)日：2013-06-20

申请号：US13769567

申请日：2013-02-18

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Rohit U. Nabar ,  Hongyuan Zhang

IPC: H01Q3/40

CPC classification number: H04B7/0617 ,  H01Q3/40 ,  H03F3/245 ,  H03G3/3042 ,  H04B7/0408 ,  H04W16/28

Abstract: One or more beamsteering matrices are applied to one or more signals to be transmitted via multiple antennas. After the one or more beamsteering matrices are applied to the one or more signals, the plurality of signals is provided to a plurality of power amplifiers coupled to the multiple antennas. Signal energies are determined for the plurality of signals provided to the plurality of power amplifiers, and relative signal energies are determined based on the determined signal energies. Output power levels of the plurality of power amplifiers are adjusted based on the determined relative signal energies.

Abstract translation: 一个或多个波束导向矩阵被施加到要经由多个天线发送的一个或多个信号。 在将一个或多个波束引导矩阵应用于一个或多个信号之后，将多个信号提供给耦合到多个天线的多个功率放大器。 对于提供给多个功率放大器的多个信号确定信号能量，并且基于所确定的信号能量来确定相对信号能量。 基于确定的相对信号能量来调整多个功率放大器的输出功率电平。

公开(公告)号：US20130136063A1

公开(公告)日：2013-05-30

申请号：US13751388

申请日：2013-01-28

Applicant: Marvell World Trade Ltd.

Inventor： Hongyuan Zhang ,  Rohit U. Nabar ,  Songping Wu

IPC: H04W56/00

CPC classification number: H04W56/001 ,  H04B1/7073 ,  H04B1/70735 ,  H04B2201/7073 ,  H04J13/0014 ,  H04J13/10 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2656 ,  H04L27/2662 ,  H04W56/00

Abstract: A system and method of extracting data from data packets transmitted over a wireless network includes receiving a data packet having a preamble portion and a payload portion. The preamble portion is cross correlated with a first known spreading sequence to generate a first timing signal and the preamble portion is cross correlated with a second known spreading signal to generate a frame timing signal. An impulse is detected in the first timing signal and a first timing parameter is set based upon the detected impulse in the first timing signal. An impulse is detected in the frame timing signal and a frame timing parameter is set based upon the detected impulse in the frame timing signal. Data is extracted from the received payload portion according to the first timing parameter and the frame timing parameter.

Abstract translation: 从通过无线网络发送的数据分组中提取数据的系统和方法包括：接收具有前同步码部分和有效载荷部分的数据分组。 前导码部分与第一已知扩展序列交叉相关，以产生第一定时信号，并且前同步码部分与第二已知扩展信号相互相关，以产生帧定时信号。 在第一定时信号中检测到脉冲，并且基于第一定时信号中检测到的脉冲设置第一定时参数。 在帧定时信号中检测到脉冲，并且基于帧定时信号中检测到的脉冲设置帧定时参数。 根据第一定时参数和帧定时参数从接收到的有效载荷部分提取数据。

公开(公告)号：US20130121348A1

公开(公告)日：2013-05-16

申请号：US13679221

申请日：2012-11-16

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Hongyuan Zhang ,  Raja Banerjea

IPC: H04L29/06

CPC classification number: H04L29/06 ,  H04B7/12 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2633

Abstract: In generating a physical layer (PHY) frequency duplication mode data unit for transmission via a communication channel, a preamble of the PHY frequency duplication mode data unit is generated. The preamble includes a signal field, and the preamble is configured so that a receiver can determine that the data unit is a frequency duplication mode-type data unit prior to decoding the signal field of the preamble. A payload of the PHY frequency duplication mode data unit is generated, and the PHY frequency duplication mode data unit is transmitted.

Abstract translation: 在生成经由通信信道传输的物理层（PHY）频率复制模式数据单元时，生成PHY频率复制模式数据单元的前导码。 前导码包括信号字段，并且前导码被配置为使得接收机可以在解码前导码的信号字段之前确定数据单元是频率复制模式型数据单元。 生成PHY频率复制模式数据单元的有效载荷，发送PHY频率复制模式数据单元。

公开(公告)号：US20130107990A1

公开(公告)日：2013-05-02

申请号：US13663106

申请日：2012-10-29

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Hongyuan Zhang ,  Raja Banerjea

IPC: H04L27/18 ,  H04L27/00

CPC classification number: H04L27/2649 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/08 ,  H04L27/2613 ,  H04L27/2666 ,  H04W84/12

Abstract: A method includes receiving a data unit that includes a signal (SIG) field and a data field. The SIG field provides information for interpreting the data field. The method also includes detecting a first symbol constellation rotation of at least a first orthogonal frequency division multiplexing (OFDM) symbol in the SIG field of the data unit, determining, based at least in part on the detected first symbol constellation rotation, a number of information bits per OFDM symbol in the SIG field of the data unit, processing the SIG field of the data unit according to the determined number of information bits per OFDM symbol in the SIG field, and processing the data field of the data unit according to the information for interpreting the data field as provided in the SIG field of the data unit.

Abstract translation: 一种方法包括接收包括信号（SIG）字段和数据字段的数据单元。 SIG字段提供用于解释数据字段的信息。 该方法还包括检测数据单元的SIG字段中的至少第一正交频分复用（OFDM）符号的第一符号星座旋转，至少部分地基于检测到的第一符号星座旋转来确定 在数据单元的SIG字段中的每个OFDM符号的信息比特，根据在SIG字段中每OFDM符号的确定的信息比特数来处理数据单元的SIG字段，并根据所述数据单元的数据字段 用于解释数据单元的SIG字段中提供的数据字段的信息。