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1. 发明申请

WO2012177414A1 UPLINK TRAINING FOR MIMO IMPLICIT BEAMFORMING 审中-公开
标题翻译：用于MIMO隐含波束的上行链路训练
公开(公告)号：WO2012177414A1
公开(公告)日：2012-12-27
申请号：PCT/US2012/041423
申请日：2012-06-07
申请人： MARVELL WORLD TRADE LTD. , NABAR, Rohit, U. , ZHANG, Hongyuan , SRINIVASA, Sudhir , ZHENG, Xiayu
发明人： NABAR, Rohit, U. , ZHANG, Hongyuan , SRINIVASA, Sudhir , ZHENG, Xiayu
IPC分类号： H04B7/06
CPC分类号： H04B7/0417 , H04B7/0617 , H04B7/0619 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0634
摘要： In a method for beamforming in a multiple input multiple output (MIMO) communication system, a data unit is received from a communication device via a MIMO communication channel, and it is determined whether the data unit satisfies one or more selection criteria. Further, when it is determined that the data unit satisfies the one or more selection criteria, the data unit is selected to be used in developing a steering matrix for transmitting data units to the communication device.
摘要翻译：在多输入多输出（MIMO）通信系统中的波束形成方法中，经由MIMO通信信道从通信设备接收数据单元，并且确定数据单元是否满足一个或多个选择标准。此外，当确定数据单元满足一个或多个选择标准时，数据单元被选择用于开发用于向通信设备发送数据单元的导向矩阵。

2. 发明申请

WO2013152111A1 PHYSICAL LAYER FRAME FORMAT FOR WLAN 审中-公开
标题翻译： WLAN的物理层框架格式
公开(公告)号：WO2013152111A1
公开(公告)日：2013-10-10
申请号：PCT/US2013/035132
申请日：2013-04-03
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , SRINIVASA, Sudhir , NABAR, Rohit, U. , BANERJEA, Raja
发明人： ZHANG, Hongyuan , SRINIVASA, Sudhir , NABAR, Rohit, U. , BANERJEA, Raja
IPC分类号： H04L1/00
CPC分类号： H04L1/009 , H03M13/098 , H03M13/655 , H04L1/0041 , H04L1/0061 , H04L1/0072 , H04L1/0079 , H04L5/0007 , H04W84/02
摘要： In a method for generating a data unit conforming to a first communication protocol, a first field and a second field to be included in a preamble of the data unit are generated. The first field includes a first set of one or more information bits that indicate a duration of the data unit and is formatted such that the first field allows a receiver device that conforms to a second communication protocol to determine the duration of the data unit. The second field includes a second set of one or more information bits that indicate to a receiver device that conforms to the first communication protocol that the data unit conforms to the first communication protocol. The first field and the second field are modulated using a modulation scheme specified for a field corresponding to the first field and the second field, respectively, by the second communication protocol.
摘要翻译：在用于生成符合第一通信协议的数据单元的方法中，生成要包括在数据单元的前导码中的第一字段和第二字段。第一字段包括指示数据单元的持续时间并且被格式化的一个或多个信息比特的第一组，使得第一场允许符合第二通信协议的接收机设备确定数据单元的持续时间。第二字段包括一个或多个信息比特的第二组，其向符合第一通信协议的接收机设备指示数据单元符合第一通信协议。通过第二通信协议，分别使用针对对应于第一场和第二场的场指定的调制方案来调制第一场和第二场。

3. 发明申请

WO2012106635A1 CONTROL MODE PHY FOR WLAN 审中-公开
标题翻译： WLAN的控制模式PHY
公开(公告)号：WO2012106635A1
公开(公告)日：2012-08-09
申请号：PCT/US2012/023832
申请日：2012-02-03
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U. , BANERJEA, Raja , LIU, Yong , SRINIVASA, Sudhir , KWON, Hyukjoon
发明人： ZHANG, Hongyuan , NABAR, Rohit, U. , BANERJEA, Raja , LIU, Yong , SRINIVASA, Sudhir , KWON, Hyukjoon
IPC分类号： H04L1/00 , H04L1/08
CPC分类号： H04L27/2602 , H03M13/23 , H04L1/0046 , H04L1/0065 , H04L1/0072 , H04L1/08 , H04L27/2613 , H04L27/265
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. The information bits are mapped to a constellation symbols. Additionally, either the information bits are encoded according to a block coding scheme, or the constellation symbols are encoded according to the block coding scheme. Orthogonal frequency division multiplexing (OFDM) symbols are generated to include the constellation symbols and the PHY data unit is generated to include the 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。信息位被映射到星座符号。另外，根据块编码方案对信息比特进行编码，或者根据块编码方案对星座符号进行编码。生成正交频分复用（OFDM）符号以包括星座符号，并且生成PHY数据单元以包括OFDM符号。

4. 发明申请

WO2011014685A2 METHODS AND APPARATUS FOR WLAN TRANSMISSION 审中-公开
标题翻译： WLAN传输的方法和设备
公开(公告)号：WO2011014685A2
公开(公告)日：2011-02-03
申请号：PCT/US2010/043756
申请日：2010-07-29
申请人： MARVELL WORLD TRADE LTD. , SRINIVASA, Sudhir , ZHANG, Hongyuan , NABAR, Rohit U.
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan , NABAR, Rohit U.
IPC分类号： H04L1/00
CPC分类号： H04L1/0005 , H04L1/0016 , H04L27/2607 , H04L27/2608 , H04L27/34 , H04W84/12
摘要： In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, a first set of modulation coding schemes (MCSs) and a second set of MCSs that correspond to a number of spatial streams and a number of encoders are provided. The first set of MCSs correspond to a first channel bandwidth and the second set of MCSs correspond to a second channel bandwidth, and the first set of MCSs is different than the second set of MCSs. An MCS is selected from the first set of MCSs when the PHY data unit is to be transmitted using a channel having the first channel bandwidth, and the MCS is selected from the second set of MCSs when the PHY data unit is to be transmitted using a channel having the second channel bandwidth. Information bits are encoded using the number of encoders and according to the selected MCS, and the encoded information bits are parsed into the number of spatial streams. The encoded information bits are modulated according to the MCS, and a plurality of OFDM symbols are formed based on the modulated encoded information bits.
摘要翻译：在用于生成经由通信信道进行传输的物理层（PHY）数据单元的方法中，与多个空间流和多个编码器相对应的第一组调制编码方案（MCS）和第二组MCS相对应，提供。第一组MCS对应于第一信道带宽，并且第二组MCS对应于第二信道带宽，并且第一组MCS不同于第二组MCS。当使用具有第一信道带宽的信道来发送PHY数据单元时，从第一组MCS中选择MCS，并且当使用第一组MCS发送PHY数据单元时，从第二组MCS中选择MCS 信道具有第二信道带宽。使用编码器的数量并根据所选择的MCS对信息比特进行编码，并将编码的信息比特解析为空间流的数量。编码信息比特根据MCS进行调制，并且基于调制编码信息比特形成多个OFDM符号。

5. 发明申请

WO2010120692A1 PHYSICAL LAYER FRAME FORMAT FOR WLAN 审中-公开
标题翻译： WLAN的物理层框架格式
公开(公告)号：WO2010120692A1
公开(公告)日：2010-10-21
申请号：PCT/US2010/030750
申请日：2010-04-12
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , LOU, Hui-Ling , NABAR, Rohit, U. , SRINIVASA, Sudhir , YU, Mao , BANERJEA, Raja
发明人： ZHANG, Hongyuan , LOU, Hui-Ling , NABAR, Rohit, U. , SRINIVASA, Sudhir , YU, Mao , BANERJEA, Raja
IPC分类号： H04L12/28 , H04L12/56 , H04L29/06 , H04L29/08 , H04W28/06 , H04L27/26
CPC分类号： H04L1/0079 , H04L1/0072 , H04L1/009 , H04L27/2613 , H04L69/18 , H04W28/06 , H04W84/12 , H04W99/00
摘要： In a method for generating a data unit for transmission via a communication channel, wherein the data unit conforms to a first communication protocol, a preamble of the data unit is generated. The preamble includes a first field having information that indicates a duration of the data unit, the first field being formatted such that the first field is decodable by a receiver device that conforms to a second communication protocol but does not conform to the first communication protocol to determine the duration of the data unit based on the first field. Additionally, the preamble is formatted such that a portion of the preamble is decodable by a receiver device that conforms to a third communication protocol but does not conform to the first communication protocol. Also, the preamble is formatted such that a receiver device that conforms to the first communication protocol can determine that the data unit conforms to the first communication protocol. A data portion of the data unit that conforms to the first communication protocol and does not conform to either (i) the second communication protocol or (ii) the third communication protocol is generated.
摘要翻译：在通过通信信道生成用于发送的数据单元的方法中，其中数据单元符合第一通信协议，生成数据单元的前同步码。前导码包括具有指示数据单元的持续时间的信息的第一字段，第一字段被格式化，使得第一字段可由符合第二通信协议但不符合第一通信协议的接收机设备解码，基于第一个字段确定数据单元的持续时间。另外，前导码被格式化，使得前导码的一部分可以由符合第三通信协议但不符合第一通信协议的接收机设备解码。此外，前导码格式化使得符合第一通信协议的接收机设备可以确定数据单元符合第一通信协议。产生符合第一通信协议并且不符合（i）第二通信协议或（ii）第三通信协议的数据单元的数据部分。

6. 发明申请

WO2011159800A1 ALTERNATE FEEDBACK TYPES FOR DOWNLINK MULTIPLE USER MIMO CONFIGURATIONS 审中-公开
标题翻译：用于下行链路多用户MIMO配置的备用反馈类型
公开(公告)号：WO2011159800A1
公开(公告)日：2011-12-22
申请号：PCT/US2011/040527
申请日：2011-06-15
申请人： MARVELL WORLD TRADE LTD. , SRINIVASA, Sudhir , ZHANG, Hongyuan , NABAR, Rohit, U. , KWON, Hyukjoon
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan , NABAR, Rohit, U. , KWON, Hyukjoon
IPC分类号： H04B7/06 , H04B7/04
CPC分类号： H04W72/0406 , H04B7/0434 , H04B7/0452 , H04B7/0617 , H04B7/0634 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04W48/16 , H04W72/046 , H04W72/082
摘要： A method in a communication network includes obtaining descriptions of a plurality of communication channels each communication channel associated with a different one of a plurality of receivers; and generating a plurality of steering vectors, one for each of the plurality of receivers, using the descriptions of the plurality of communication channels; wherein each steering vector is used to transmit data to a corresponding one of the plurality receivers via a plurality of antennas and over a corresponding one of the communication channels simultaneously and wherein each steering vector is used to communicate data on a different one of the plurality of communication channels, and wherein each steering vector is generated to reduce interference on a corresponding communication channel caused by simultaneous transmission of data on other communication channels.
摘要翻译：通信网络中的方法包括：获得与多个接收机中的不同的一个相关联的每个通信信道的多个通信信道的描述; 以及使用所述多个通信信道的描述来生成多个所述多个接收机中的每一个的导向向量; 其中每个导向矢量用于经由多个天线以及通过相应的一个通信信道同时向多个接收机中的相应一个发送数据，并且其中每个导向向量用于在多个接收机中的不同的一个上传送数据通信信道，并且其中生成每个导向矢量以减少由在其他通信信道上的数据的同时发送而引起的相应通信信道上的干扰。

7. 发明申请

WO2017044938A1 SYSTEMS AND METHODS FOR TRANSMITTING A PREAMBLE WITHIN A WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开
标题翻译：用于在无线局域网（WLAN）中传输前缀的系统和方法
公开(公告)号：WO2017044938A1
公开(公告)日：2017-03-16
申请号：PCT/US2016/051280
申请日：2016-09-12
申请人： MARVELL WORLD TRADE LTD. , SUN, Yakun , ZHANG, Hongyuan , SRINIVASA, Sudhir , ZHENG, Xiayu
发明人： SUN, Yakun , ZHANG, Hongyuan , SRINIVASA, Sudhir , ZHENG, Xiayu
IPC分类号： H04B7/04 , H04L27/26
CPC分类号： H04W28/06 , H04B7/04 , H04B7/0617 , H04L25/0242 , H04L27/2602 , H04L27/2626 , H04L27/2646 , H04W84/12
摘要： Some embodiments described herein provide a method for transmitting a preamble in accordance with a wireless local area network communication protocol. In some embodiments, a data frame may be obtained for transmission including a preamble compliant with the wireless local area network communication protocol. It may be determined that the preamble includes a first preamble portion that spans multiple symbol durations and a second preamble portion that spans a single symbol duration. The first preamble portion via beamforming may be transmitted based on a first beamforming matrix. When a transmission mode of the second preamble portion is beamforming, a second beamforming matrix may be generated based on the first beamforming matrix, each tone for the second preamble portion may be calculated based on the second beamforming matrix. Each calculated tone may be transmitted in accordance with the wireless local area network communication protocol.
摘要翻译：本文描述的一些实施例提供了一种根据无线局域网通信协议来发送前同步码的方法。在一些实施例中，可以获得包括符合无线局域网通信协议的前导码的传输的数据帧。可以确定前导码包括跨越多个符号持续时间的第一前导码部分和跨越单个符号持续时间的第二前导码部分。可以基于第一波束形成矩阵来发射通过波束成形的第一前导码部分。当第二前导码部分的传输模式是波束形成时，可以基于第一波束形成矩阵来生成第二波束形成矩阵，可以基于第二波束成形矩阵来计算第二前导码部分的每个音调。可以根据无线局域网通信协议来发送每个计算的音调。

8. 发明申请

WO2014169110A1 METHOD AND APPARATUS OF MITIGATING INTERFERENCE IN A WIRELESS NETWORK THOUGH USE OF TRANSMIT BEAMFORMING 审中-公开
标题翻译：通过使用发射光束对无线网络干扰的方法和装置
公开(公告)号：WO2014169110A1
公开(公告)日：2014-10-16
申请号：PCT/US2014/033632
申请日：2014-04-10
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U. , LI, Pen, Chung
发明人： ZHANG, Hongyuan , NABAR, Rohit, U. , LI, Pen, Chung
IPC分类号： H04B7/04 , H04B7/06
CPC分类号： H04L25/03904 , H04B7/0413 , H04B7/0456 , H04B7/0626 , H04L25/0204 , H04L25/03942
摘要： In a method for reducing interference in wireless communications, a beamforming matrix is determined at a first communication device based on an estimate of a multiple input, multiple output (MIMO) communication channel between the first communication device and a second communication device. Both the first communication device and the second communication device belong to a first wireless network. Alternatively, the beamforming matrix may be generated based on the estimate of the MIMO communication channel and received at the first communication device. The beamforming matrix is used at the first communication device for the purpose of reducing interference to a second wireless network, where the interference is caused by the first communication device transmitting to the second communication device via the MIMO communication channel.
摘要翻译：在减少无线通信中的干扰的方法中，基于第一通信设备和第二通信设备之间的多输入多输出（MIMO）通信信道的估计，在第一通信设备处确定波束成形矩阵。第一通信设备和第二通信设备都属于第一无线网络。或者，波束形成矩阵可以基于MIMO通信信道的估计并在第一通信设备处接收来生成。在第一通信设备处使用波束成形矩阵，用于减少对第二无线网络的干扰，其中由第一通信设备经由MIMO通信信道向第二通信设备发送干扰。

9. 发明申请

WO2010005775A1 PHYSICAL LAYER FRAME FORMAT DESIGN FOR WIDEBAND WIRELESS COMMUNICATIONS SYSTEMS 审中-公开
标题翻译：物理层框架格式设计用于宽带无线通信系统
公开(公告)号：WO2010005775A1
公开(公告)日：2010-01-14
申请号：PCT/US2009/048245
申请日：2009-06-23
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U. , PALANIVELU, Arul Durai, Murugan , LOU, Hui-Ling , WU, Songping
发明人： ZHANG, Hongyuan , NABAR, Rohit, U. , PALANIVELU, Arul Durai, Murugan , LOU, Hui-Ling , WU, Songping
IPC分类号： H04L5/02 , H04L25/02 , H04L27/26 , H04L27/36 , H04L27/38
CPC分类号： H04L27/2601 , H04L5/02 , H04L25/02 , H04L27/36 , H04L27/38
摘要： Systems and methods are provided for processing a payload portion of a received signal in a single carrier mode or a multiple carrier mode based on a portion of the received signal. A single carrier signaling portion is received at a first rate, and whether the payload portion of the signal is a single carrier signal or a multiple carrier signal is detected from the received single carrier signaling portion. The payload portion of the received signal is received at the first rate and demodulated in a single carrier mode if the detecting determines that the payload portion of the received signal is a single carrier signal, and the payload portion of the received signal is demodulated in a multiple carrier mode if the detecting determines that the payload portion of the received signal is a multiple carrier signal.
摘要翻译：提供了系统和方法，用于基于接收信号的一部分，以单载波模式或多载波模式处理接收信号的有效载荷部分。以第一速率接收单载波信令部分，以及信号的有效载荷部分是单载波信号还是从所接收的单载波信令部分检测多载波信号。如果检测结果确定接收信号的有效载荷部分是单载波信号，则以第一速率接收接收信号的有效载荷部分并以单载波模式进行解调，并且接收信号的有效载荷部分被解调为多载波模式，如果检测确定接收信号的有效载荷部分是多载波信号。

10. 发明申请

WO2009139989A1 PHY PREAMBLE FORMAT FOR WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译： PHY无线通信系统的前缀格式
公开(公告)号：WO2009139989A1
公开(公告)日：2009-11-19
申请号：PCT/US2009/039724
申请日：2009-04-07
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U. , WU, Songping
发明人： ZHANG, Hongyuan , NABAR, Rohit, U. , WU, Songping
IPC分类号： H04B1/707 , H04L27/26
CPC分类号： H04W56/001 , H04B1/7073 , H04B1/70735 , H04B2201/7073 , H04J13/0014 , H04J13/10 , H04L5/0016 , H04L27/2613 , H04L27/262 , H04L27/2656 , H04L27/2662 , H04W56/00
摘要： 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.
摘要翻译：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交叉相关，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。

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