公开(公告)号：US11025368B2

公开(公告)日：2021-06-01

申请号：US15595116

申请日：2017-05-15

申请人： Marvell World Trade Ltd.

发明人： Hongyuan Zhang ,  Hui-Ling Lou ,  Rohit U. Nabar ,  Sudhir Srinivasa ,  Mao Yu ,  Raja Banerjea

IPC分类号： H04L1/00 ,  H04L27/26 ,  H04L29/06 ,  H04W28/06 ,  H04W84/12 ,  H04W99/00

摘要： A preamble of a physical layer (PHY) data unit that conforms to a first communication protocol is generated. The preamble includes a legacy field that is formatted according to a second communication protocol, and a signal field having a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol. The first OFDM symbol (i) immediately follows the legacy field and (ii) is modulated using binary phase shift keying (BPSK) modulation, whereas a third communication protocol specifies that an OFDM symbol, defined by the third communication protocol, that immediately follows the legacy field is modulated using BPSK modulation rotated by 90 degrees (Q-BPSK). The second OFDM symbol (i) immediately follows the first OFDM symbol and (ii) is modulated using Q-BPSK to indicate to a receiver device that conforms to the first communication protocol that the data unit conforms to the first communication protocol.

公开(公告)号：US09769071B2

公开(公告)日：2017-09-19

申请号：US14992876

申请日：2016-01-11

申请人： Marvell World Trade Ltd.

发明人： Yong Liu ,  Harish Ramamurthy ,  Raja Banerjea

IPC分类号： H04L12/28 ,  H04L12/721 ,  H04L25/02 ,  H04L12/801 ,  H04L12/851 ,  H04L12/863 ,  H04L12/26 ,  H04W24/02 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08 ,  H04W84/12

CPC分类号： H04L45/70 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0098 ,  H04L25/0208 ,  H04L25/0224 ,  H04L43/0888 ,  H04L47/10 ,  H04L47/14 ,  H04L47/24 ,  H04L47/50 ,  H04W24/02 ,  H04W72/042 ,  H04W74/0816 ,  H04W84/12

摘要： A first communication device transmits one or more first communication frames during a transmit opportunity period (TXOP) of the first communication device via a first composite channel. A control frame is generated, wherein the control frame includes information indicating a bandwidth of the first composite channel. After the one or more first communication frames have been transmitted, the first communication device transmits, during the TXOP, the control frame via the first composite channel. Information from a response frame that indicates a bandwidth of a second composite communication channel is extracted, the response frame having been transmitted by a second communication device and received by the first communication device during the TXOP. The first communication device transmits one or more second communication frames during the TXOP, wherein the one or more communication frames span the second composite communication channel and do not span the entire first composite communication channel.

公开(公告)号：US09712365B2

公开(公告)日：2017-07-18

申请号：US14987316

申请日：2016-01-04

申请人： Marvell World Trade Ltd.

发明人： Hongyuan Zhang ,  Sudhir Srinivasa ,  Hyukjoon Kwon ,  Raja Banerjea

IPC分类号： H04B7/02 ,  H04L27/26 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04W24/10 ,  H04B7/06 ,  H04L1/06

CPC分类号： H04L27/2646 ,  H04B7/0617 ,  H04B7/066 ,  H04L1/06 ,  H04L1/0618 ,  H04L1/0693 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03808 ,  H04W24/10

摘要： Channel data for a plurality of OFDM tones for one or more spatial or space-time streams are determined. A plurality of angle values associated with the one or more spatial or space-time streams and the one or more OFDM tones of the plurality of OFDM tones are determined. For each of the one or more spatial or space time streams, a per-tone signal to noise ratio (PT-SNR) associated with one or more OFDM tone of the plurality of OFDM tones is determined, and an average signal to noise ratio (avg-SNR) is determined by averaging signal to noise ratio (SNR) values corresponding to one or more OFDM tones of the plurality of OFDM tones. A feedback report is generated to include at least i) the plurality of angle values, ii) the PT-SNRs, and iii) the avg-SNR.

公开(公告)号：US09661647B2

公开(公告)日：2017-05-23

申请号：US14673216

申请日：2015-03-30

申请人： Marvell World Trade Ltd.

发明人： Yong Liu ,  Raja Banerjea ,  Harish Ramamurthy

IPC分类号： H04W72/12 ,  H04W74/08 ,  H04L5/00 ,  H04W84/12

CPC分类号： H04W72/121 ,  H04L5/0023 ,  H04L5/0044 ,  H04W74/0816 ,  H04W74/0833 ,  H04W84/12

摘要： Systems and technique for wireless communication are described. A describe technique includes transmitting, from a first device, a request to send (RTS) to the second devices to protect a wireless communication neighborhood of the first device and wireless communication neighborhood of the second devices for transmission of a multi-user frame; receiving clear to send (CTS) responses from the second devices; determining a bandwidth width for the multi-user frame based on a bandwidth availability among the second devices as indicated by the CTS responses and bandwidth indications included in the CTS responses, the multi-user frame comprising spatially steered data frames that are respectively intended for the second devices and are in accordance with the determined bandwidth width; and transmitting the multi-user frame to the identified devices in accordance with the determined bandwidth width.

公开(公告)号：US09538572B2

公开(公告)日：2017-01-03

申请号：US14107857

申请日：2013-12-16

申请人： MARVELL WORLD TRADE LTD.

发明人： Raja Banerjea ,  Robert Fanfelle

IPC分类号： H04W76/02 ,  H04W92/18 ,  H04W88/06

CPC分类号： H04W76/025 ,  H04W76/15 ,  H04W88/06 ,  H04W92/18

摘要： A device for wirelessly communicating between one or more mobile communication devices over a wireless network. A primary mobile communication device is configured to establish one or more connections to one or more secondary mobile communication devices. The primary mobile communication device is further configured to establish a first connection and a second connection to at least one of the secondary mobile communication devices. The first connection is a Bluetooth (BT) connection and the second connection is a Wireless Fidelity (WiFi) connection. The primary mobile device is also configured to establish a third connection to another secondary mobile communication device wherein the third connection is a WiFi connection. Additionally, the primary mobile communication device is configured to simultaneously maintain the BT connection and the WiFi connections during the bi-directional transmission of data between the primary mobile communication device and the secondary mobile communication devices.

摘要翻译： 一种用于通过无线网络在一个或多个移动通信设备之间进行无线通信的设备。 主移动通信设备被配置为建立到一个或多个次要移动通信设备的一个或多个连接。 主移动通信设备还被配置为建立到第二移动通信设备中的至少一个的第一连接和第二连接。 第一个连接是蓝牙（BT）连接，第二个连接是无线保真（WiFi）连接。 主移动设备还被配置为建立到另一辅助移动通信设备的第三连接，其中第三连接是WiFi连接。 此外，主移动通信设备被配置为在主移动通信设备和辅助移动通信设备之间的数据双向传输期间同时维护BT连接和WiFi连接。

公开(公告)号：US09479428B2

公开(公告)日：2016-10-25

申请号：US14286320

申请日：2014-05-23

申请人： Marvell World Trade Ltd.

发明人： Raja Banerjea ,  Sandesh Goel

IPC分类号： H04W40/00 ,  H04W40/02 ,  H04L12/721 ,  H04L12/741 ,  H04W40/24 ,  H04W40/10

CPC分类号： H04L45/26 ,  H04L45/54 ,  H04W40/10 ,  H04W40/246 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/326

摘要： A wireless network device includes a physical layer module configured to send and receive packets wirelessly. The wireless network device includes a mesh routing module configured to receive a first packet from a second wireless network device via the physical layer module. The first packet includes a metric and a source address. The mesh routing module is further configured to determine a cumulative metric based on (i) the metric from the first packet and (ii) a link metric. The mesh routing module is further configured to transmit a second packet to a third wireless network device via the physical layer module. The second packet includes the cumulative metric. The mesh routing module is further configured to determine the link metric based on (i) a state of charge of a power supply of the wireless network device and (ii) a transmission parameter of the second packet.

摘要翻译： 无线网络设备包括被配置为无线发送和接收分组的物理层模块。 无线网络设备包括网状路由模块，网状路由模块经配置以经由物理层模块从第二无线网络设备接收第一分组。 第一个分组包括一个度量和一个源地址。 网格路由模块还被配置为基于（i）来自第一分组的度量和（ii）链路度量来确定累积度量。 网状路由模块还被配置为经由物理层模块向第三无线网络设备发送第二分组。 第二个分组包括累积度量。 网状路由模块还被配置为基于（i）无线网络设备的电源的充电状态和（ii）第二分组的传输参数来确定链路量度。

公开(公告)号：US09419849B2

公开(公告)日：2016-08-16

申请号：US14930434

申请日：2015-11-02

申请人： Marvell World Trade Ltd.

发明人： Hongyuan Zhang ,  Rohit U. Nabar ,  Raja Banerjea ,  Yong Liu ,  Sudhir Srinivasa ,  Hyukjoon Kwon

IPC分类号： H04L27/00 ,  H04L29/06 ,  H04L27/26 ,  H04L1/00 ,  H04L1/08 ,  H04L5/00

CPC分类号： H04L29/0653 ,  H04L1/004 ,  H04L1/0046 ,  H04L1/0065 ,  H04L1/08 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2617 ,  H04L27/2621 ,  H04L27/2626 ,  H04L27/2636

摘要： In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, information bits to be included in the PHY data unit are encoded using a forward error correction (FEC) encoder. Also, the information bits are encoded according to a block coding scheme, where m copies of each bit are included in the information bits, and one or more bits in the m copies of each bit are flipped. The information bits are mapped to a plurality of constellation symbols, and a plurality of orthogonal frequency division multiplexing (OFDM) symbols are generated to include the plurality of constellation symbols. The PHY data unit is generated to include the plurality of OFDM symbols.

摘要翻译： 在通过通信信道生成用于发送的物理层（PHY）数据单元的方法中，使用前向纠错（FEC）编码器对要包括在PHY数据单元中的信息比特进行编码。 此外，信息比特根据块编码方案进行编码，其中每个比特的m个副本被包括在信息比特中，并且每个比特的m个副本中的一个或多个比特被翻转。 信息比特被映射到多个星座符号，并且生成多个正交频分复用（OFDM）符号以包括多个星座符号。 生成PHY数据单元以包括多个OFDM符号。

公开(公告)号：US20160119815A1

公开(公告)日：2016-04-28

申请号：US14989754

申请日：2016-01-06

申请人： Marvell World Trade Ltd.

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

IPC分类号： H04W28/06 ,  H04L29/08

CPC分类号： 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

摘要： Systems and techniques relating to wireless communications are described. A described technique includes generating a physical frame, the physical frame including (i) spatially steered length fields and (ii) spatially steered frames that respectively include aggregated medium access control data units (A-MPDUs) that encapsulate data, the steered length fields respectively indicating lengths of the A-MPDUs in number of four-octet units. Generating the physical frame can include including after an A-MPDU of the A-MPDUs in a steered frame of the steered frames, (i) a medium access control layer pad and (ii) a physical layer pad. A length of the medium access control layer pad and a length of the physical layer pad can be based on the physical frame.

摘要翻译： 描述与无线通信相关的系统和技术。 所描述的技术包括生成物理帧，物理帧包括（i）空间转向长度字段和（ii）空间转向帧，其分别包括封装数据的聚合介质访问控制数据单元（A-MPDU），转向长度字段 指示A-MPDU的长度以四个八位字节为单位。 生成物理帧可以包括在转向帧的转向帧中的A-MPDU的A-MPDU之后包括，（i）介质访问控制层焊盘和（ii）物理层焊盘。 介质访问控制层焊盘的长度和物理层焊盘的长度可以基于物理帧。

公开(公告)号：US09247558B2

公开(公告)日：2016-01-26

申请号：US14679601

申请日：2015-04-06

申请人： Marvell World Trade LTD.

发明人： Raja Banerjea ,  Harish Ramamurthy

IPC分类号： H04W72/12 ,  H04W88/06 ,  H04W16/14

CPC分类号： H04W72/1215 ,  H04W16/14 ,  H04W88/06

摘要： A network device including a first communication module and a second communication module. The first communication module is configured to, in accordance with a first wireless protocol, receive first data during a first time period and transmit second data during a second time period. The second communication module configured to, in accordance with a second wireless protocol, receive a plurality of packets during the first time period; not transmit an acknowledgement during the first time period for each packet of the plurality of packets in response to receiving each packet of the plurality of packets; and subsequent to receiving all of the plurality of packets, transmit a single acknowledgement during the second time period to indicate receipt of all of the plurality of packets.

摘要翻译： 一种网络设备，包括第一通信模块和第二通信模块。 第一通信模块被配置为根据第一无线协议在第一时间段期间接收第一数据，并在第二时间段期间发送第二数据。 第二通信模块，被配置为根据第二无线协议在第一时间段期间接收多个分组; 响应于接收到所述多个分组的每个分组，不在所述多个分组的每个分组的第一时间段期间发送确认; 并且在接收到所有多个分组之后，在第二时间段期间发送单个确认以指示接收到所有多个分组。

公开(公告)号：US20150326417A1

公开(公告)日：2015-11-12

申请号：US14802370

申请日：2015-07-17

申请人： Marvell World Trade LTD.

发明人： Raja Banerjea

IPC分类号： H04L27/26

CPC分类号： H04W48/06 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2692 ,  H04W48/08 ,  H04W72/0446 ,  H04W72/1257 ,  H04W72/1278 ,  H04W84/12

摘要： A receiver including a physical layer module and a processing module. The physical layer module is configured to receive a packet via a medium. The packet includes a first preamble followed by a second preamble. The first preamble is generated based on a first data rate. The second preamble is generated based on a second data rate. Each of the first preamble and the second preamble includes a duration of the packet. The processing module is configured to process (i) the first preamble in response to the receiver operating at the first data rate or (ii) the second preamble in response to the receiver operating at the second data rate. The processing module is configured to determine whether to defer accessing the medium for the duration of the packet based on the processing of the first preamble or the second preamble.

摘要翻译： 一种接收机，包括物理层模块和处理模块。 物理层模块被配置为经由介质接收分组。 分组包括第一前序后跟第二前同步码。 基于第一数据速率生成第一前同步码。 基于第二数据速率生成第二前导码。 第一前导码和第二前导码中的每一个包括分组的持续时间。 处理模块被配置为响应于接收机以第一数据速率操作或响应于接收机以第二数据速率操作，处理（i）响应于接收机工作的第一前同步码。 处理模块被配置为基于第一前同步码或第二前同步码的处理来确定是否延迟在分组的持续时间内访问媒体。