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1. 发明申请

WO2016201273A1 SYSTEMS, APPARATUSES AND METHODS FOR A SIGNAL EXTENSION PADDING SCHEME 审中-公开
标题翻译：一种信号扩展方案的系统，装置和方法
公开(公告)号：WO2016201273A1
公开(公告)日：2016-12-15
申请号：PCT/US2016/036955
申请日：2016-06-10
申请人： MARVELL WORLD TRADE LTD. , SUN, Yakun , ZHANG, Hongyuan , CAO, Rui , SRINIVASA, Sudhir
发明人： SUN, Yakun , ZHANG, Hongyuan , CAO, Rui , SRINIVASA, Sudhir
IPC分类号： H04L1/00 , H04L27/26
CPC分类号： H04L1/0008 , H04L1/0009 , H04L1/0041 , H04L1/0057 , H04L5/0007 , H04L27/2602
摘要： Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.
摘要翻译：本文描述的系统，装置和方法提供了一种用于填充正交频分复用（OFDM）符号的信号扩展的方法。收发机可以获得用于发送的多个数据符号，并且确定多个数据符号中的最后一个符号的信息比特数不是整数值。可以应用特殊的填充规则来将填充位添加到最后一个符号。当最后一个符号的信息位的数量已经改变时，可以确定用于最后一个符号的多个编码比特，并且可以基于确定的最后一个符号的编码比特数来编码用于数据传输的多个数据符号。

2. 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。

3. 发明申请

WO2014047444A1 ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SYMBOL FORMATS FOR A WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开
标题翻译：无线局域网（WLAN）的正交频分多路复用（OFDM）符号格式
公开(公告)号：WO2014047444A1
公开(公告)日：2014-03-27
申请号：PCT/US2013/060929
申请日：2013-09-20
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , SRINIVASA, Sudhir
发明人： ZHANG, Hongyuan , SRINIVASA, Sudhir
IPC分类号： H04L5/00
CPC分类号： H04L5/0028 , H04L5/0023 , H04L5/0044 , H04L5/0048 , H04L5/0064
摘要： In a method of generating an orthogonal frequency division multiplexing (OFDM) symbol, a plurality of information bits is encoded to generate a plurality of coded bits. The plurality of information bits corresponds to a first bandwidth, while the OFDM symbol includes a number of data tones corresponding to a second bandwidth. The coded bits are mapped to a plurality constellation symbols. The constellation symbols are mapped to a first plurality of data subcarriers corresponding to a first portion of the OFDM symbol and to a second plurality of data subcarriers corresponding to a second portion of the OFDM symbol. A subset of data subcarriers in the first plurality of data subcarriers and in the second plurality of data subcarriers are set to one or more predetermined values. The OFDM symbol is then generated to include at least the first plurality of data subcarriers and the second plurality of data subcarriers.
摘要翻译：在产生正交频分复用（OFDM）符号的方法中，多个信息比特被编码以产生多个编码比特。多个信息位对应于第一带宽，而OFDM符号包括与第二带宽相对应的多个数据音调。编码比特被映射到多个星座符号。星座符号被映射到对应于OFDM符号的第一部分的第一多个数据子载波和对应于OFDM符号的第二部分的第二多个数据子载波。第一多个数据子载波和第二多个数据子载波中的数据副载波的子集被设置为一个或多个预定值。然后生成OFDM符号以至少包括第一多个数据子载波和第二多个数据子载波。

4. 发明申请

WO2012047855A8 COMPRESSED FEEDBACK FORMAT FOR WLAN 审中-公开
公开(公告)号：WO2012047855A8
公开(公告)日：2012-04-12
申请号：PCT/US2011/054725
申请日：2011-10-04
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , SRINIVASA, Sudhir , KWON, Hyukjoon , BANERJEA, Raja
发明人： ZHANG, Hongyuan , SRINIVASA, Sudhir , KWON, Hyukjoon , BANERJEA, Raja
IPC分类号： H04L25/02 , H04L25/03 , H04L1/00
摘要： In a method for transmitting channel feedback data from a receiver to a transmitter, channel data for a plurality of orthogonal frequency division multiplexing (OFDM) tones for one or more spatial or space-time streams corresponding to the communication channel is determined. A compressed form of the channel data is determined. Determining the compressed form includes determining 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. 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 corresponding to the one or more spatial or space-time streams and the one or more OFDM tones, ii) the PT-SNRs corresponding to the one or more spatial or space-time streams and the one or more OFDM tones, and iii) the avg-SNR corresponding to the one or more spatial or space-time streams. The feedback report is included in a data unit to be transmitted from the receiver to the transmitter.

5. 发明申请

WO2012044457A1 STREAM PARSING IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：通信系统中的流分配
公开(公告)号：WO2012044457A1
公开(公告)日：2012-04-05
申请号：PCT/US2011/051416
申请日：2011-09-13
申请人： MARVELL WORLD TRADE LTD. , SRINIVASA, Sudhir , ZHANG, Hongyuan
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan
IPC分类号： H04L1/00 , H04L1/06
CPC分类号： H04L1/0033 , H04L1/0041 , H04L1/06
摘要： In a method for parsing data in a data unit into a number of spatial streams, a modulation and coding scheme (MCS) is selected from a plurality of MCSs. Information bits are encoded using one or more encoders to generate coded bits, wherein the number of encoders used depends on the selected MCS. The coded bits into a number of spatial streams according to a first set of parsing rules if the coded bits satisfy a parsing constraint. The coded bits are parsed into the number of spatial streams according to a second set of parsing rules if the coded bits do not satisfy the parsing constraint.
摘要翻译：在将数据单元中的数据解析为多个空间流的方法中，从多个MCS中选择调制和编码方案（MCS）。使用一个或多个编码器对信息比特进行编码以产生编码比特，其中使用的编码器数目取决于所选择的MCS。如果编码比特满足解析约束，则根据第一组解析规则将编码比特转换成多个空间流。如果编码比特不满足解析约束，则编码比特根据第二组解析规则解析为空间流数。

6. 发明申请

WO2012003355A1 MODULATION OF SIGNAL FIELD IN A WLAN FRAME HEADER 审中-公开
标题翻译：无线局域网帧头信号场调制
公开(公告)号：WO2012003355A1
公开(公告)日：2012-01-05
申请号：PCT/US2011/042650
申请日：2011-06-30
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , SRINIVASA, Sudhir
发明人： ZHANG, Hongyuan , SRINIVASA, Sudhir
IPC分类号： H04L5/00
CPC分类号： H04L27/2602 , H04B7/028 , H04L5/0048 , H04L27/20 , H04L69/22 , H04L69/323
摘要： A plurality of training fields of a preamble of a physical layer data unit are generated, and training fields of the plurality of training fields are mapped to respective signal streams of a plurality of streams using a mapping matrix. A signal field of the preamble of the data unit is generated, and the signal field is mapped to the plurality of signal streams using a column of the mapping matrix. The plurality of signal streams are mapped to a plurality of spatial streams, and at least i) the plurality of training fields and ii) the signal field are transmitted via the plurality of spatial streams.
摘要翻译：生成物理层数据单元的前导码的多个训练场，并且使用映射矩阵将多个训练场的训练场映射到多个流的各个信号流。产生数据单元的前导码的信号字段，并且使用映射矩阵的列将信号字段映射到多个信号流。多个信号流被映射到多个空间流，并且至少i）多个训练场，以及ii）信号场经由多个空间流发射。

7. 发明申请

WO2011060326A1 MULTI-CHANNEL WIRELESS COMMUNICATIONS 审中-公开
标题翻译：多通道无线通信
公开(公告)号：WO2011060326A1
公开(公告)日：2011-05-19
申请号：PCT/US2010/056619
申请日：2010-11-12
申请人： MARVELL WORLD TRADE LTD. , BANERJEA, Raja , LIU, Yong , ZHANG, Hongyuan , RAMAMURTHY, Harish , SRINIVASA, Sudhir
发明人： BANERJEA, Raja , LIU, Yong , ZHANG, Hongyuan , RAMAMURTHY, Harish , SRINIVASA, Sudhir
IPC分类号： H04W74/08
CPC分类号： H04W74/08 , H04L1/1614 , H04L1/1685 , H04W24/00 , H04W72/04 , H04W72/12 , H04W74/002 , H04W74/0816 , H04W84/12
摘要： 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, determining a second transmission period for the second channel, transmitting, based on the first transmission period, a first packet on the first channel to cause one or more wireless communication devices to set a transmission protection period for the first channel and the second channel based on a reception of the first packet, transmitting, based on the second transmission period, a second packet on the second channel, and monitoring, after the end of the first transmission period, for one or more acknowledgements. An end of the second transmission period can be aligned with an end of the first transmission period.
摘要翻译：描述与无线通信相关的系统和技术。所描述的技术包括监视包括第一信道和第二信道的无线通信信道以产生监控输出，确定第一信道的第一传输周期，确定第二信道的第二传输周期，基于第一信道传输周期，第一信道上的第一分组，用于使一个或多个无线通信设备基于第一分组的接收来设置第一信道和第二信道的传输保护周期，基于第二传输周期，在第二信道上的第二分组，并且在第一传输周期结束之后监视一个或多个确认。第二传输周期的结束可以与第一传输周期的结束对齐。

8. 发明申请

WO2014022695A1 ENCODING PARAMETERS FOR A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：编写无线通信系统的参数
公开(公告)号：WO2014022695A1
公开(公告)日：2014-02-06
申请号：PCT/US2013/053277
申请日：2013-08-01
申请人： MARVELL WORLD TRADE LTD. , SRINIVASA, Sudhir , ZHANG, Hongyuan
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan
IPC分类号： H04L27/26
CPC分类号： H04L1/0625 , H04L1/0041 , H04L1/0042 , H04L27/2626
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 received. A number of padding bits are added to the information bits. The number of padding bits is determined based on respective virtual values of each of one or more encoding parameters. The information bits are parsed to a number of encoders and are encoded, using the number of encoders, to generate coded bits. The coded bits are padded such that padded coded bits correspond to respective true values of each of the one or more encoding parameters. The PHY data unit is generated to include the padded coded bits.
摘要翻译：在用于生成用于经由通信信道传输的物理层（PHY）数据单元的方法中，接收要包括在PHY数据单元中的信息比特。多个填充位被添加到信息位。基于一个或多个编码参数中的每一个的相应虚拟值来确定填充比特的数量。信息比特被解析为多个编码器，并且使用编码器编号来编码以产生编码比特。编码比特被填补，使得填充的编码比特对应于一个或多个编码参数中的每一个的相应真实值。生成PHY数据单元以包括填充的编码比特。

9. 发明申请

WO2014121089A1 FREQUENCY OFFSET COMPENSATION FOR WIFI RANGING 审中-公开
标题翻译：无线范围频率偏移补偿
公开(公告)号：WO2014121089A1
公开(公告)日：2014-08-07
申请号：PCT/US2014/014179
申请日：2014-01-31
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , YU, Mao , YONG, Su, Khiong , SRINIVASA, Sudhir
发明人： ZHANG, Hongyuan , YU, Mao , YONG, Su, Khiong , SRINIVASA, Sudhir
IPC分类号： H04W56/00 , G01S5/02
CPC分类号： H04W56/004 , G01S5/06 , G01S11/02 , G01S13/767 , H04W56/002 , H04W64/003
摘要： Methods, systems, and apparatus are disclosed for determining accurate ranging measurements between communication devices. Various embodiments are described for recording timestamps associated with when transmissions are sent and received between the communication devices. The communication devices are configured to determine a difference in their clock frequencies and to communicate this difference with one another. Furthermore, each of the communication devices is configured to compensate for these differences before or after the timestamps are exchanged and to send a compensation indicator of whether the compensation has been performed. If the compensation has not been performed, either of the communication devices can compensate for the clock frequency differences after receiving the timestamps based on the compensation indicator. By using compensated clock frequencies based on a single clock reference, highly accurate ranging measurements are obtained using round trip propagation time calculations.
摘要翻译：公开了用于确定通信设备之间的精确测距测量的方法，系统和装置。描述了用于记录与在通信设备之间发送和接收传输时相关联的时间戳的各种实施例。通信设备被配置为确定其时钟频率的差异并且将这种差异传达给彼此。此外，每个通信设备被配置为在交换时间戳之前或之后补偿这些差异，并且发送是否已经执行了补偿的补偿指示符。如果没有执行补偿，则任一通信设备可以基于补偿指示符来补偿接收到时间戳之后的时钟频率差。通过使用基于单个时钟参考的补偿时钟频率，可以使用往返传播时间计算获得高精度的测距。

10. 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。

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