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81. 发明申请

WO2013116268A1 SYSTEMS AND METHODS FOR GENERATING PREAMBLE SYMBOLS IN COMMUNICATION SYSTEMS 审中-公开
标题翻译：在通信系统中生成前缀符号的系统和方法
公开(公告)号：WO2013116268A1
公开(公告)日：2013-08-08
申请号：PCT/US2013/023741
申请日：2013-01-30
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , SRINIVASA, Sudhir
发明人： ZHANG, Hongyuan , SRINIVASA, Sudhir
IPC分类号： H04L27/26
CPC分类号： H04L5/0048 , H04L5/0053 , H04L27/2613 , H04W84/12
摘要： A method for transmitting an 802.11ah packet is provided. A training field sequence is generated using control circuitry. A preamble for a packet is generated using the control circuitry. The preamble includes a training field symbol which includes the training field sequence. A portion of the training field sequence is within a plurality of guard tones of the training field symbol. The preamble is transmitted using transmit circuitry.
摘要翻译：提供了一种用于发送802.11ah分组的方法。使用控制电路产生训练场序列。使用控制电路产生分组的前同步码。前导码包括包括训练场序列的训练场符号。训练场序列的一部分在训练场符号的多个保护音调内。使用发送电路发送前导码。

82. 发明申请

WO2012030545A1 OPTIMUM INTERLEAVER DESIGN FOR A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于通信系统的最佳交互设计
公开(公告)号：WO2012030545A1
公开(公告)日：2012-03-08
申请号：PCT/US2011/048197
申请日：2011-08-18
申请人： MARVELL WORLD TRADE LTD. , QI, Yihong , SRINIVASA, Sudhir , ZHANG, Hongyuan
发明人： QI, Yihong , SRINIVASA, Sudhir , ZHANG, Hongyuan
IPC分类号： H04L1/00 , H04L1/06 , H04L5/00 , H04B7/00
CPC分类号： H04B7/046 , H04L1/0009 , H04L1/0071 , H04L1/0643 , H04L1/203 , H04L5/0046 , H04L27/2601
摘要： In a method for interleaving information bits in a physical layer (PHY) data unit, a channel bandwidth to be used for transmitting the PHY data unit is determined and a frequency rotation parameter NROT corresponding to the channel bandwidth is selected. A spatial stream constant is selected for each spatial stream from the set [0, 5, 2, 7, 3, 6, 1, 4] or a subset thereof depending on a number of spatial streams to be utilized, wherein each constant in the set corresponds to a respective spatial stream. Information bits are interleaved according to the selected frequency rotation parameter NROT and the selected spatial stream constant.
摘要翻译：在用于交织物理层（PHY）数据单元中的信息比特的方法中，确定要用于发送PHY数据单元的信道带宽，并且选择与信道带宽对应的频率旋转参数NROT。根据要利用的空间流的数量，从集合[0,5,2,7,3,6,1,4]或其子集为每个空间流选择空间流常数，其中，集合对应于相应的空间流。信息比特根据所选择的频率旋转参数NROT和所选择的空间流常数进行交织。

83. 发明申请

WO2012021622A1 CHANNEL DESCRIPTION FEEDBACK IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：通道说明反馈在通信系统
公开(公告)号：WO2012021622A1
公开(公告)日：2012-02-16
申请号：PCT/US2011/047254
申请日：2011-08-10
申请人： MARVELL WORLD TRADE LTD. , SRINIVASA, Sudhir , ZHANG, Hongyuan , KWON, Hyukjoon
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan , KWON, Hyukjoon
IPC分类号： H04B7/06 , H04L1/06
CPC分类号： H04L25/0206 , H04B7/0417 , H04L1/0693 , H04L5/0005 , H04L5/0023 , H04L25/0202 , H04L25/022
摘要： In a method for estimating a channel between a transmitter and a receiver in a communication network, a plurality of training signal fields are received at the receiver. Each training signal field includes a plurality of orthogonal frequency division multiplexing (OFDM) tones, and the OFDM tones include at least a plurality of training data tones and one or more pilot tones. Channel estimate data corresponding to the plurality of training data tones and the one or more pilot tones is determined. Channel estimate data corresponding to only a subset of the OFDM tones or data generated using the channel estimate data corresponding to the subset of OFDM tones is transmitted to the transmitter, wherein the subset excludes pilot tones.
摘要翻译：在通信网络中用于估计发射机和接收机之间的信道的方法中，在接收机处接收多个训练信号字段。每个训练信号字段包括多个正交频分复用（OFDM）音调，并且OFDM音调包括至少多个训练数据音调和一个或多个导频音调。确定对应于多个训练数据音调和一个或多个导频音调的信道估计数据。仅对应于OFDM音调的子集的频道估计数据或使用对应于OFDM音调的子集的信道估计数据生成的数据被发送到发射机，其中该子集排除导频音调。

84. 发明申请

WO2012006393A1 CYCLIC SHIFT DELAYS IN MULTI-USER PACKETS WITH RESOLVABLE VERY HIGH THROUGHPUT LONG TRAINING FIELDS (VHTLTFS) 审中-公开
标题翻译：多用户分组中的循环移位延迟与可分离的非常高的长途训练场（VHTLTFS）
公开(公告)号：WO2012006393A1
公开(公告)日：2012-01-12
申请号：PCT/US2011/043134
申请日：2011-07-07
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , SRINIVASA, Sudhir
发明人： ZHANG, Hongyuan , SRINIVASA, Sudhir
IPC分类号： H04L27/26 , H04B7/04
CPC分类号： H04L27/2607 , H04B7/0671 , H04L27/261
摘要： A system including a training field generator module, a stream generator module, and a cyclic shift delay module. The training field generator module generates training fields to be transmitted in a packet to client stations. The stream generator module generates streams to be transmitted in the packet. First streams (i) are designated for a first client station and (ii) include the training fields. Second streams (i) are designated for a second client station and (ii) include the training fields. The cyclic shift delay module applies cyclic shift delay values to the streams. First cyclic shift delay values are respectively applied to the first streams. Second cyclic shift delay values are respectively applied to the second streams. At least one of the second cyclic shift delay values is equal to one of the first cyclic shift delay values. Alternatively, the second values are different than the first values.
摘要翻译：一种包括训练场发生器模块，流发生器模块和循环移位延迟模块的系统。训练场发生器模块产生要在分组中传送到客户端站的训练场。流生成器模块生成要在分组中传输的流。第一流（i）被指定用于第一客户站，并且（ii）包括训练场。第二个流（i）被指定用于第二客户站，（ii）包括训练场。循环移位延迟模块将循环移位延迟值应用于流。第一循环移位延迟值分别应用于第一流。第二循环移位延迟值分别应用于第二流。第二循环移位延迟值中的至少一个等于第一循环移位延迟值中的一个。或者，第二值不同于第一值。

85. 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。

86. 发明申请

WO2009140605A1 EFFICIENT PHYSICAL LAYER PREAMBLE FORMAT 审中-公开
标题翻译：有效的物理层前置格式
公开(公告)号：WO2009140605A1
公开(公告)日：2009-11-19
申请号：PCT/US2009/044160
申请日：2009-05-15
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U. , WU, Songping , LOU, Hui-Ling , ZHOU, Quan
发明人： ZHANG, Hongyuan , NABAR, Rohit, U. , WU, Songping , LOU, Hui-Ling , ZHOU, Quan
IPC分类号： H04J11/00 , H04L27/26
CPC分类号： H04B1/707 , H04J13/0014 , H04J13/10 , H04L27/2613 , H04L27/262
摘要： A method for generating a preamble of a data unit for transmission via a communication channel includes generating a first field of the preamble using one of a first sequence or a second sequence, such that the first sequence and the second sequence are complementary sequences such that a sum of out-of-phase aperiodic autocorrelation coefficients of the first sequence and the second sequence is zero; generating, using the other one of the first sequence or the second sequence, an indicator of a start of a second field of the preamble, the second field associated with channel estimation information, such that the indicator of the start of the second field immediately follows the first field; and generating the second field of the preamble.
摘要翻译：一种用于生成用于经由通信信道进行传输的数据单元的前同步码的方法包括使用第一序列或第二序列中的一个生成前导码的第一字段，使得第一序列和第二序列是互补序列，使得第一序列和第二序列的异相非周期自相关系数的和为零; 使用所述第一序列或所述第二序列中的另一个序列生成所述前导码的第二字段的开始的指示符，所述第二字段与信道估计信息相关联，使得所述第二字段的开始的指示符紧随其后第一场; 以及产生所述前导码的第二字段。

87. 发明申请

WO2017223221A8 METHOD AND APPARATUS FOR TRANSMISSION 审中-公开
公开(公告)号：WO2017223221A8
公开(公告)日：2017-12-28
申请号：PCT/US2017/038578
申请日：2017-06-21
申请人： MARVELL WORLD TRADE LTD. , SUN, Yakun , ZHANG, Hongyuan , CHU, Liwen , WANG, Lei , JIANG, Jinjing , CAO, Rui , ZHANG, Yan
发明人： SUN, Yakun , ZHANG, Hongyuan , CHU, Liwen , WANG, Lei , JIANG, Jinjing , CAO, Rui , ZHANG, Yan
IPC分类号： H04L27/26 , H04W4/00 , H04L5/00
摘要： Aspects of the disclosure provide an apparatus that includes a transceiver circuit and a processing circuit. The transceiver circuit is configured to receive a trigger signal this is transmitted by another apparatus. The trigger signal triggers transmissions by a first group of apparatuses including the apparatus, and defers transmissions by a second group of apparatuses that interfere the transmissions by the first group of apparatuses. The processing circuit is configured to, in response to the trigger signal, generate a frame with a first preamble structure that is different from a second preamble structure that is used by the second group of apparatuses, and provide the generated frame to the transceiver circuit for transmission.

88. 发明申请

WO2016077490A1 ACKNOWLEDGMENT FOR MULTIPLE USER COMMUNICATION IN A WLAN 审中-公开
标题翻译：在WLAN中进行多用户通信的确认
公开(公告)号：WO2016077490A1
公开(公告)日：2016-05-19
申请号：PCT/US2015/060211
申请日：2015-11-11
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , ZHANG, Hongyuan , WANG, Lei , LOU, Hui-ling , JIANG, Jinjing
发明人： CHU, Liwen , ZHANG, Hongyuan , WANG, Lei , LOU, Hui-ling , JIANG, Jinjing
IPC分类号： H04L5/00 , H04B7/00
CPC分类号： H04W72/0453 , H04B7/0452 , H04L5/0007 , H04L5/0037 , H04L5/0055 , H04L5/0094 , H04L27/2608 , H04W84/12
摘要： A first communication device generates a multi-user (MU) physical layer (PHY) data unit having independent data for multiple second communication devices. The first communication device also generates respective control frames to prompt second communication devices to transmit an orthogonal frequency division multiple access (OFDMA) PHY data unit to acknowledge that the second communication devices received the MU PHY data unit. The MU PHY data unit and the respective control frames are transmitted to the multiple second communication devices. The first communication device receives the OFDMA PHY data unit from at least some of the second communication devices. The first communication device processes the OFDMA PHY data unit to determine whether the multiple second communication devices received the MU PHY data unit.
摘要翻译：第一通信设备生成具有用于多个第二通信设备的独立数据的多用户（MU）物理层（PHY）数据单元。第一通信设备还产生相应的控制帧，以提示第二通信设备发送正交频分多址（OFDMA）PHY数据单元，以确认第二通信设备接收到MU PHY数据单元。 MU PHY数据单元和各个控制帧被发送到多个第二通信设备。第一通信设备从至少一些第二通信设备接收OFDMA PHY数据单元。第一通信设备处理OFDMA PHY数据单元以确定多个第二通信设备是否接收到MU PHY数据单元。

89. 发明申请

WO2015061729A1 RANGE EXTENSION MODE FOR WIFI 审中-公开
标题翻译： WIFI范围扩展模式
公开(公告)号：WO2015061729A1
公开(公告)日：2015-04-30
申请号：PCT/US2014/062247
申请日：2014-10-24
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , LOU, Hui-Ling , YONG, Su, Khiong
发明人： ZHANG, Hongyuan , LOU, Hui-Ling , YONG, Su, Khiong
IPC分类号： H04L27/26
CPC分类号： H04L27/2605 , H04J11/00 , H04L1/0057 , H04L27/2613 , H04L27/2698 , H04W52/286 , H04W84/12
摘要： A method for generating a physical layer (PHY) data unit for transmission via a communication channel is described where the PHY data unit conforms to a first communication protocol. Orthogonal frequency division multiplexing (OFDM) symbols for a data field of the PHY data unit are generated according to a range extension coding scheme that corresponds to a range extension mode of the first communication protocol. A preamble of the PHY data unit is generated, the preamble having i) a first portion that indicates a duration of the PHY data unit and ii) a second portion that indicates whether at least some OFDM symbols of the data field are generated according to the range extension coding scheme. The first portion of the preamble is formatted such that the first portion of the preamble 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 PHY data unit based on the first portion of the preamble. The PHY data unit is generated to include the preamble and the data field.
摘要翻译：描述了通过通信信道生成用于传输的物理层（PHY）数据单元的方法，其中PHY数据单元符合第一通信协议。根据与第一通信协议的范围扩展模式对应的范围扩展编码方案，生成用于PHY数据单元的数据字段的正交频分复用（OFDM）符号。生成PHY数据单元的前同步码，前导码具有i）指示PHY数据单元的持续时间的第一部分，以及ii）指示是否根据该数据字段生成数据字段的至少一些OFDM符号的第二部分范围扩展编码方案。前导码的第一部分被格式化为使得前导码的第一部分可以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，以便基于PHY数据单元的持续时间来确定在序言的第一部分。生成PHY数据单元以包括前导码和数据字段。

90. 发明申请

WO2015038647A3 EXTENDED GUARD INTERVAL FOR OUTDOOR WLAN 审中-公开
公开(公告)号：WO2015038647A3
公开(公告)日：2015-03-19
申请号：PCT/US2014/054991
申请日：2014-09-10
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan
发明人： ZHANG, Hongyuan
IPC分类号： H04L27/26
摘要： In an method for generating a data unit for transmission via a communication channel, a data portion of the data unit is generated. Orthogonal frequency division multiplexing (OFDM) symbols of the data portion are generated using one of (i) a normal guard interval, (ii) a short guard interval and (iii) a long guard interval. A preamble of the data unit is generated. The preamble indicates whether at least OFDM symbols of the data portion are generated using the normal guard interval, the short guard interval, or the long guard interval. The data unit is then generated to include the preamble and the data portion.

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