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81. 发明授权

EP2603984B1 CHANNEL DESCRIPTION FEEDBACK IN A COMMUNICATION SYSTEM 有权转让
公开(公告)号：EP2603984B1
公开(公告)日：2019-07-17
申请号：EP11751713.6
申请日：2011-08-10
申请人： Marvell World Trade Ltd.
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan , KWON, Hyukjoon
IPC分类号： H04B7/06 , H04L1/06

82. 发明公开

EP3347999A1 SYSTEMS AND METHODS FOR TRANSMITTING A PREAMBLE WITHIN A WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开
公开(公告)号：EP3347999A1
公开(公告)日：2018-07-18
申请号：EP16771042.5
申请日：2016-09-12
申请人： Marvell World Trade Ltd.
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.

83. 发明授权

EP2583385B1 ALTERNATE FEEDBACK TYPES FOR DOWNLINK MULTIPLE USER MIMO CONFIGURATIONS 有权转让
标题翻译：下行链路多用户MIMO配置的交替反馈类型
公开(公告)号：EP2583385B1
公开(公告)日：2018-04-18
申请号：EP11728131.1
申请日：2011-06-15
申请人： Marvell World Trade Ltd.
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan , NABAR, Rohit, U. , KWON, Hyukjoon
IPC分类号： H04B7/06 , H04B7/04 , H04B7/0452 , H04L25/02 , H04W48/16 , H04W72/04 , H04W72/08
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.

84. 发明授权

EP2625832B1 COMPRESSED FEEDBACK FORMAT FOR WLAN 有权转让
标题翻译：用于WLAN的压缩反馈格式
公开(公告)号：EP2625832B1
公开(公告)日：2018-02-21
申请号：EP11770970.9
申请日：2011-10-04
申请人： Marvell World Trade Ltd.
发明人： ZHANG, Hongyuan , SRINIVASA, Sudhir , KWON, Hyukjoon , BANERJEA, Raja
IPC分类号： H04L25/02 , H04L25/03 , H04L1/06 , H04L5/00
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： 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 streams corresponding to a communication channel is determined. A plurality of angle values associated with the one or more spatial streams and one or more OFDM tones is determined. For each of the one or more spatial streams, a per-tone signal to noise ratio (PT-SNR) associated with one or more OFDM tones is determined, and an average signal to noise ratio (avg-SNR) is determined by averaging the signal to noise ratio (SNR) values. A feedback report is generated to include at least i) the plurality of angle values, ii) the PT-SNRs, and iii) the avg-SNR. The feedback report is included in a data unit to be transmitted from the receiver to the transmitter.

85. 发明授权

EP2625813B1 TONE REORDERING IN A WIRELESS COMMUNICATION SYSTEM 有权转让
标题翻译：无线通信系统中的音频重排
公开(公告)号：EP2625813B1
公开(公告)日：2017-05-31
申请号：EP11767589.2
申请日：2011-09-30
申请人： Marvell World Trade Ltd.
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan
IPC分类号： H04L1/00 , H04L5/00
CPC分类号： H04L5/0044 , H04L1/0057 , H04L1/0059 , H04L5/0023

86. 发明授权

EP2803160B1 INFORMATION BIT PADDING SCHEMES FOR WLAN 有权转让
标题翻译：信息比特FÜLLSCHEMATA无线局域网
公开(公告)号：EP2803160B1
公开(公告)日：2016-01-06
申请号：EP13720531.6
申请日：2013-01-11
申请人： Marvell World Trade Ltd.
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan , LIU, Yong
IPC分类号： H04L1/00 , H04L1/16 , H04L5/00 , H04L27/00 , H04L29/06
CPC分类号： H04L29/0653 , H04L1/0008 , H04L1/0041 , H04L1/0079 , H04L1/1671 , H04L5/0091 , H04L27/00

87. 发明公开

EP2898623A1 ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SYMBOL FORMATS FOR A WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开
标题翻译： OFDM符号格式FOR A WLAN
公开(公告)号：EP2898623A1
公开(公告)日：2015-07-29
申请号：EP13771711.2
申请日：2013-09-20
申请人： Marvell World Trade Ltd.
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.

88. 发明公开

EP2803160A2 INFORMATION BIT PADDING SCHEMES FOR WLAN 有权转让
标题翻译：信息比特FÜLLSCHEMATA无线局域网
公开(公告)号：EP2803160A2
公开(公告)日：2014-11-19
申请号：EP13720531.6
申请日：2013-01-11
申请人： Marvell World Trade Ltd.
发明人： SRINIVASA, Sudhir , ZHANG, Hongyuan , LIU, Yong
IPC分类号： H04L5/00 , H04L27/00 , H04L29/06
CPC分类号： H04L29/0653 , H04L1/0008 , H04L1/0041 , H04L1/0079 , H04L1/1671 , H04L5/0091 , H04L27/00
摘要： In a method for generating a data unit, a signal field is generated to include a first subfield having one of: a length indication to indicate a number of bytes in a data portion of the data unit, or a duration indication to indicate a number of OFDM symbols in the data portion of the data unit and a second subfield to indicate whether the first subfield includes the length indication or the duration indication. When the first subfield includes the length indication, one or more padding bits are added to a set of information bits according to a first padding scheme. When the first subfield includes the duration indication, one or more padding bits are added to the set of information bits to according to a second padding scheme. Padded information bits are encoded, and the data unit is generated to included the encoded information bits.

89. 发明公开

EP2745554A1 SIGNAL FIELD DESIGN FOR WLAN 有权转让
标题翻译： ENTWURF EINES SIGNALFELDSFÜRWLAN
公开(公告)号：EP2745554A1
公开(公告)日：2014-06-25
申请号：EP12753308.1
申请日：2012-08-16
申请人： Marvell World Trade Ltd.
发明人： ZHANG, Hongyuan , BANERJEA, Raja , LIU, Yong , SRINIVASA, Sudhir
IPC分类号： H04W28/06
CPC分类号： H04W28/18 , H04L69/22 , H04L69/323 , H04W84/12
摘要： A method of generating packets for transmission in a wireless communication system. The method comprises generating a data packet and generating a null data packet. Generating the data packet includes generating a data packet signal (SIG) field including a first data packet SIG subfield indicating a first physical layer (PHY) parameter to a receiving device. Generating the data packet also includes generating a data field. Furthermore, generating the null data packet includes generating a null data packet SIG field. The null data packet SIG field includes a first null data packet SIG subfield indicating a second PHY parameter to a receiving device. The data packet SIG field excludes any SIG subfield indicating the second PHY parameter to a receiving device, and (ii) the null data packet SIG field excludes any SIG subfield indicating the first PHY parameter to a receiving device.
摘要翻译：一种在无线通信系统中生成用于传输的分组的方法。该方法包括生成数据分组并生成空数据分组。生成数据分组包括生成包括向接收设备指示第一物理层（PHY）参数的第一数据分组SIG子字段的数据分组信号（SIG）字段。生成数据包还包括生成数据字段。此外，生成空数据分组包括生成空数据分组SIG字段。空数据分组SIG字段包括向接收设备指示第二PHY参数的第一空数据分组SIG子字段。数据分组SIG字段将指示第二PHY参数的任何SIG子字段排除到接收设备，并且（ii）空数据分组SIG字段将指示第一PHY参数的任何SIG子字段排除到接收设备。

90. 发明公开

EP2724479A1 UPLINK TRAINING FOR MIMO IMPLICIT BEAMFORMING 有权转让
标题翻译： UPLINK-TRAININGFÜRMIMO-IMPLIZITE STRAHLFORMUNG
公开(公告)号：EP2724479A1
公开(公告)日：2014-04-30
申请号：EP12730297.4
申请日：2012-06-07
申请人： Marvell World Trade Ltd.
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引矩阵。

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