公开(公告)号：US09867185B1

公开(公告)日：2018-01-09

申请号：US14558873

申请日：2014-12-03

Applicant: Marvell International LTD.

Inventor： Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04W84/12 ,  H04W88/06

Abstract: A first network device including a radio frequency (RF), baseband, and medium access control (MAC) modules. The RF module: based on a predetermined primary mode, selects a first band from bands including a sub-1 GHz, IEEE 802.11ah, and IEEE 802.11af bands; in the first band, receives a radio or intermediate frequency signal; and converts the radio or intermediate frequency signal to a baseband signal. The baseband module: based on the primary mode, selects a secondary mode and a first bandwidth from multiple bandwidths, where the secondary mode has a corresponding data rate and the bandwidths include a bandwidth downclocked from an IEEE 802.11ac or 1 MHz bandwidth; receives the baseband signal from the RF module, where the baseband signal has the first bandwidth; and based on the baseband signal, outputs a frame included in the baseband signal. The MAC module receives the frame from the baseband module at the data rate.

公开(公告)号：US09736731B1

公开(公告)日：2017-08-15

申请号：US14537457

申请日：2014-11-10

Applicant: Marvell International Ltd.

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

IPC: H04W28/18

CPC classification number: H04W28/18 ,  H04B7/0617 ,  H04B7/0689 ,  H04L5/0044 ,  H04L47/365 ,  H04L69/166 ,  H04W28/065

Abstract: A desired number of buffers to be used in a block acknowledgment (BA) session or with media access control (MAC) data units having a same traffic identifier (TID) is determined. A desired maximum MAC data unit size to be used in the BA session or with the MAC data units having the same TID is determined. An indication of the desired number of buffers in the BA session or with the MAC data units having the same TID is transmitted to a communication device in a wireless communication network for negotiating with the communication device. An indication of the desired maximum MAC data unit size to be used in the BA session or with the MAC data units having the same TID is transmitted to the second communication device for negotiating with the other station.

公开(公告)号：US09615374B1

公开(公告)日：2017-04-04

申请号：US14930304

申请日：2015-11-02

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Yong Liu ,  Raja Banerjea ,  Hongyuan Zhang

IPC: H04W72/08 ,  H04B7/06

CPC classification number: H04W72/085 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/0834

Abstract: A method in a communication network including a communication channel includes generating a first message, where the first message includes a field indicative of a direction along which a quality of the communication channel is to be measured, causing the first message to be transmitted to a target device, and receiving a second message responsive to the first message, where the second message includes at least one channel quality metric.

公开(公告)号：US09596715B1

公开(公告)日：2017-03-14

申请号：US13689223

申请日：2012-11-29

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Hongyuan Zhang ,  Rohit U. Nabar ,  Sudhir Srinivasa ,  Raja Banerjea ,  Yong Liu

IPC: H04L27/00 ,  H04W84/12 ,  H04L27/26 ,  H04L1/06 ,  H04L25/03 ,  H04L5/00 ,  H04B1/12 ,  H04N5/44 ,  H04B3/32 ,  H04B1/10

CPC classification number: H04W84/12 ,  H04B1/1027 ,  H04B1/123 ,  H04B3/32 ,  H04L1/0618 ,  H04L5/0007 ,  H04L25/03057 ,  H04L25/03343 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2647 ,  H04N5/4401

Abstract: A preamble, first and second portions of a data payload of a single data unit, and a midamble included between the first and second portions are generated. The midamble includes calibration information, and is based on a maximum number of space-time streams of a communication channel. A network interface of a communication device generates the preamble, the first and second portions of the data payload, and the midamble. A preamble, first and second portions of a data payload of a single data unit, and a midamble are received. The midamble includes calibration information, and is based on a maximum number of space-time streams. A first and/or a second characteristic is updated based on the midamble. A network interface of a communication device receives the preamble, the first and second portions of the data payload, and the midamble; and updates the first or the second characteristic based on the midamble.

Abstract translation: 产生单个数据单元的数据有效载荷的前导码，第一和第二部分以及包括在第一和第二部分之间的中间码。 中间码包括校准信息，并且基于通信信道的最大数量的时空流。 通信设备的网络接口产生前导码，数据有效载荷的第一和第二部分以及中间码。 接收单个数据单元的数据有效载荷的前导码，第一和第二部分以及中间码。 中间码包括校准信息，并且基于最大数量的时空流。 基于中间码来更新第一和/或第二特性。 通信设备的网络接口接收前导码，数据有效载荷的第一和第二部分以及中间码; 并基于midamble更新第一或第二特征。

公开(公告)号：US09425921B1

公开(公告)日：2016-08-23

申请号：US14739068

申请日：2015-06-15

Applicant: Marvell International Ltd.

Inventor： Hongyuan Zhang

IPC: H04B1/10 ,  H04L1/00 ,  H04L27/26 ,  H04B7/04 ,  H04B17/20

CPC classification number: H04W28/04 ,  H04B7/0413 ,  H04B17/20 ,  H04L1/0045 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03891 ,  H04L27/2647 ,  H04W92/18

Abstract: Receiving devices and methods for suppressing interference from a data signal received at a receiving device are provided. The receiving device has m receive antennas. A training signal set transmitted from a first transmitting device is received at the receiving device. The training signal set includes (i) data for each transmit antenna of n transmit antennas included on the first transmitting device and (ii) information sufficient to determine a channel estimate corresponding to a communication channel between the first transmitting device and the receiving device. The channel estimate is determined based on the training signal set. The channel estimate includes an m-by-n description of the communication channel. The data signal received at the receiving device is filtered based on the channel estimate to suppress the interference in the data signal. The data signal is transmitted from a second transmitting device different from the first transmitting device.

Abstract translation: 提供了用于抑制在接收设备处接收的数据信号的干扰的接收设备和方法。 接收设备具有m个接收天线。 在接收装置处接收从第一发送装置发送的训练信号集合。 训练信号组包括（i）包括在第一发射设备上的n个发射天线的每个发射天线的数据和（ii）足以确定与第一发射设备和接收设备之间的通信信道相对应的信道估计的信息。 基于训练信号集确定信道估计。 信道估计包括通信信道的m-by-n描述。 在接收装置接收到的数据信号根据信道估计进行滤波，以抑制数据信号的干扰。 从与第一发送装置不同的第二发送装置发送数据信号。

公开(公告)号：US09408090B1

公开(公告)日：2016-08-02

申请号：US14195624

申请日：2014-03-03

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Hongyuan Zhang ,  Sudhir Srinivasa ,  Yong Liu

IPC: H04J1/16 ,  H04W24/02

CPC classification number: H04W24/02 ,  H04Q11/0478

Abstract: In a wireless network in which communication devices are configured to use a first guard interval between symbols or a second guard interval between symbols, wherein the first guard interval has a length shorter than a length of the second guard interval, a field in a data unit received from a communication device is analyzed to determine a set of one or more modulation and coding schemes (MCSs) supported by the communication device and to determine whether one or more MCSs in the set of one or more MCSs is supported by the communication device when using the first guard interval. One MCS in the set of one or more MCSs and the first guard interval is utilized a) when communicating with the communication device, and b) when it is determined that the one MCS is supported by the communication device when using the first guard interval.

Abstract translation: 在其中通信设备被配置为使用符号之间的第一保护间隔或符号之间的第二保护间隔的无线网络中，其中所述第一保护间隔具有比所述第二保护间隔的长度短的长度，数据单元中的字段 分析从通信设备接收的，以确定由通信设备支持的一个或多个调制和编码方案（MCS）的集合，并且确定一个或多个MCS的集合中的一个或多个MCS是否被通信设备支持时 使用第一保护间隔。 一个MCS中的一个MCS和第一保护间隔被利用a）当与通信设备进行通信时，以及b）当使用第一保护间隔时确定通信设备支持一个MCS。

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：US09319122B1

公开(公告)日：2016-04-19

申请号：US14188363

申请日：2014-02-24

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Hongyuan Zhang ,  Sudhir Srinivasa ,  Rohit U. Nabar

IPC: H04B1/00 ,  H04B7/06 ,  H04B7/04 ,  H04W84/12

CPC classification number: H04B7/0613 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0697 ,  H04W84/12

Abstract: In a communication network, a first communication device obtains respective channel estimate matrices of respective communication channels between i) the first communication device and ii) respective second communication devices. The first communication device generates respective steering matrices for use in communicating with the respective second communication devices, including generating each steering matrix to project to a null-space of a space spanned by channel estimate matrices corresponding to others of the second communication devices. The first communication device utilizes the respective steering matrices to simultaneously transmit respective signals to the respective second communication devices.

Abstract translation: 在通信网络中，第一通信设备在i）第一通信设备和ii）相应的第二通信设备之间获得各个通信信道的各个信道估计矩阵。 第一通信设备生成用于与各个第二通信设备进行通信的各个导引矩阵，包括生成每个导向矩阵以投影到与第二通信设备中的其他设备相对应的信道估计矩阵所跨越的空间的空间空间。 第一通信设备利用相应的导向矩阵同时将相应的信号发送到相应的第二通信设备。

公开(公告)号：US09252860B1

公开(公告)日：2016-02-02

申请号：US14311425

申请日：2014-06-23

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Ying-Cheng Lee ,  Timothy J. Donovan ,  Ken Kinwah Ho ,  Hongyuan Zhang

IPC: H04L27/00 ,  H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0413 ,  H04B7/0619

Abstract: Systems, methods, and other embodiments associated with beamforming with steering submatrix selection are described. According to one embodiment, a method includes receiving a packet for transmit beamforming and identifying a first steering matrix. The first steering matrix includes weights, set forth in n rows and c columns, that are applicable to be applied to the packet in transmit beamforming of the packet. The method includes generating a second steering matrix having weights set forth in less than n rows or less than c columns. The weights of the second steering matrix are selected from the weights of the first steering matrix. The method includes providing the weights from the second steering matrix to a transmitter transmitting the packet for transmit beamforming of the packet.

Abstract translation: 描述了与具有转向子矩阵选择的波束成形相关联的系统，方法和其他实施例。 根据一个实施例，一种方法包括接收用于发射波束成形的分组并识别第一导引矩阵。 第一导向矩阵包括适用于在分组的发射波束成形中应用于分组的n行和c列中列出的权重。 该方法包括生成具有小于n行或小于c列的权重的第二导引矩阵。 从第一导向矩阵的权重中选择第二导引矩阵的权重。 该方法包括将来自第二导引矩阵的权重提供给发送分组以用于分组的发射波束成形的发射机。

公开(公告)号：US09226294B1

公开(公告)日：2015-12-29

申请号：US14537388

申请日：2014-11-10

Applicant: Marvell International Ltd.

Inventor： Yong Liu ,  Hongyuan Zhang

IPC: H04Q9/04 ,  H04Q9/12 ,  H04Q11/02 ,  H04B7/208 ,  H04W72/04

CPC classification number: H04W74/0816 ,  H04W72/0406 ,  H04W72/0446 ,  H04W72/046 ,  H04W74/006 ,  H04W74/04 ,  H04W84/12

Abstract: A first communication device determines that each second communication device in a plurality of second communication devices has respective data to be transmitted to the first communication device. The first communication device transmits a request to the plurality of second communication devices to transmit data to the first communication device simultaneously during a transmit opportunity period of the first communication device. The first communication device receives data transmitted simultaneously by the plurality of second communication devices during the transmit opportunity period of the first communication device.

Abstract translation: 第一通信设备确定多个第二通信设备中的每个第二通信设备具有要发送到第一通信设备的相应数据。 第一通信设备在第一通信设备的发送机会期间内向多个第二通信设备发送请求以同时向第一通信设备发送数据。 第一通信设备在第一通信设备的发送机会期间期间接收由多个第二通信设备同时发送的数据。