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1. 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。

2. 发明申请

WO2010027864A3 PHYSICAL LAYER DATA UNIT FORMAT 审中-公开
公开(公告)号：WO2010027864A3
公开(公告)日：2010-03-11
申请号：PCT/US2009/055069
申请日：2009-08-26
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U. , SHEN, Manyuan , WU, Songping , LOU, Hui-ling , LIU, Yong
发明人： ZHANG, Hongyuan , NABAR, Rohit, U. , SHEN, Manyuan , WU, Songping , LOU, Hui-ling , LIU, Yong
IPC分类号： H04L27/26
摘要： In a wireless communication system wherein communication devices exchange information utilizing data units that conform to a first format, a beamforming training (BFT) data unit that conforms to a second format is transmitted, wherein a length of the BFT data unit is shorter than lengths supported by the first format, wherein the BFT data unit is for transmitting PHY beamforming training information. Information to indicate the BFT data unit conforms to the second format is transmitted to a receiving device. The BFT data unit is generated according to the second format, wherein the BFT data unit includes BFT information elements. The BFT data unit is then transmitted to the receiving device.

3. 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。

4. 发明申请

WO2010037100A1 PHYSICAL LAYER DATA UNIT FORMAT 审中-公开
标题翻译：物理层数据单元格式
公开(公告)号：WO2010037100A1
公开(公告)日：2010-04-01
申请号：PCT/US2009/058795
申请日：2009-09-29
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , WU, Songping , LOU, Hui-ling , NABAR, Rohit, U.
发明人： ZHANG, Hongyuan , WU, Songping , LOU, Hui-ling , NABAR, Rohit, U.
IPC分类号： H04J11/00 , H04L5/00
CPC分类号： H04L69/22 , H04J11/00 , H04J13/102 , H04L5/0048 , H04L27/2613
摘要： In a wireless communication system wherein communication devices exchange information utilizing data units that conform to a first format, wherein the first format includes a short training field (STF) spread with a first spread code and a first cover code, a method is for generating a physical layer (PHY) data unit that conforms to a second format, wherein the PHY data unit is for transmitting PHY information. A first portion of the PHY data unit is generated to indicate the PHY data unit conforms to the second format, wherein the first portion of the PHY data unit includes an STF spread with at least one of a second spread code different than the first spread code or a second cover code different than the first cover code. A second portion of the PHY data unit is generated according to the second format, wherein the second portion of the PHY data unit includes PHY information elements not specified by the first format.
摘要翻译：在其中通信设备利用符合第一格式的数据单元来交换信息的无线通信系统中，其中所述第一格式包括利用第一扩展码和第一覆盖码扩展的短训练场（STF），所述方法用于生成物理层（PHY）数据单元，其符合第二格式，其中PHY数据单元用于发送PHY信息。生成PHY数据单元的第一部分以指示PHY数据单元符合第二格式，其中PHY数据单元的第一部分包括具有与第一扩展码不同的第二扩展码中的至少一个的STF扩展或与第一封面代码不同的第二封面代码。根据第二格式生成PHY数据单元的第二部分，其中PHY数据单元的第二部分包括未被第一格式指定的PHY信息元素。

5. 发明申请

WO2009126440A1 PHYSICAL LAYER FRAME FORMAT FOR WIDEBAND WIRELESS COMMUNICATIONS SYSTEMS 审中-公开
标题翻译：用于宽带无线通信系统的物理层框架格式
公开(公告)号：WO2009126440A1
公开(公告)日：2009-10-15
申请号：PCT/US2009/038222
申请日：2009-03-25
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： H04L27/26 , H04L1/00 , H04L5/00
CPC分类号： H04L27/14 , H04L1/0025 , H04L5/0007 , H04L5/0092 , H04L27/0008 , H04L27/0012 , H04L27/2602
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 using a wireless channel receiver based on a portion of the received signal, where a signaling portion of the received signal is a single carrier signal. A single carrier signaling portion is received, 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 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. Data from the demodulated payload portion of the received signal is stored in a computer-readable memory.
摘要翻译：提供了系统和方法，用于基于接收信号的一部分，使用无线信道接收机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，其中接收信号的信令部分是单载波信号。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。如果检测确定接收信号的有效载荷部分是单载波信号，则以单载波模式解调接收信号的有效载荷部分，并且如果检测到接收信号的有效载荷部分以多载波模式被解调确定接收信号的有效载荷部分是多载波信号。来自接收信号的解调有效载荷部分的数据被存储在计算机可读存储器中。

6. 发明申请

WO2010027865A3 BEAMFORMING BY SECTOR SWEEPING 审中-公开
公开(公告)号：WO2010027865A3
公开(公告)日：2010-03-11
申请号：PCT/US2009/055071
申请日：2009-08-26
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U. , SHEN, Manyuan , WU, Songping , LOU, Hui-Ling , LIU, Yong
发明人： ZHANG, Hongyuan , NABAR, Rohit, U. , SHEN, Manyuan , WU, Songping , LOU, Hui-Ling , LIU, Yong
IPC分类号： H04B7/06 , H04B7/08
摘要： A method for beamforming in a communication system includes receiving a first plurality of training data units via a plurality of antennas, applying a different steering vector as each training data unit is received, generating a first plurality of quality indicators based on the first plurality of received training data units, such that each of the first plurality of quality indicators corresponds to a respective one of the first plurality of received training data units, and selecting a steering vector based on the different steering vectors and the first plurality of quality indicators.

7. 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。

8. 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。

9. 发明申请

WO2008140822A1 BICM DECODING IN THE PRESENCE OF CO-CHANNEL INTERFERENCE 审中-公开
标题翻译： BICM解码存在共通道干扰
公开(公告)号：WO2008140822A1
公开(公告)日：2008-11-20
申请号：PCT/US2008/006092
申请日：2008-05-12
申请人： MARVELL WORLD TRADE LTD. , LEE, Jungwon , NABAR, Rohit, U. , LOU, Hui-ling
发明人： LEE, Jungwon , NABAR, Rohit, U. , LOU, Hui-ling
IPC分类号： H04L25/06
CPC分类号： H04B1/1027 , H04L25/067
摘要： Systems and methods are provided for computing soft information for digital information based on a received signal, where the received signal suffers from noise and interference. A receiver that decodes the received signal may estimate channel information, such as the channel gain, associated with the interfering source. The receiver may also obtain modulation information through a backbone network or by decoding control information transmitted by the interfering source. Using the modulation information and the channel information, the receiver may estimate the effect that interference has on the received signal, and may compute soft information (e.g., a log-likelihood ratio) for the digital information.
摘要翻译：提供了系统和方法，用于基于接收到的信号来计算用于数字信息的软信息，其中所接收的信号受到噪声和干扰的影响。对接收到的信号进行解码的接收机可以估计与干扰源相关联的信道信息，例如信道增益。接收机还可以通过骨干网获得调制信息，或通过解码由干扰源发送的控制信息。使用调制信息和信道信息，接收机可以估计干扰对接收信号的影响，并且可以计算数字信息的软信息（例如，对数似然比）。

10. 发明申请

WO2009051748A2 BEAMFORMING USING PREDEFINED SPATIAL MAPPING MATRICES 审中-公开
标题翻译：使用预定的空间映射矩阵进行波束形成
公开(公告)号：WO2009051748A2
公开(公告)日：2009-04-23
申请号：PCT/US2008/011805
申请日：2008-10-15
申请人： MARVELL WORLD TRADE LTD. , ZHANG, Hongyuan , NABAR, Rohit, U.
发明人： ZHANG, Hongyuan , NABAR, Rohit, U.
IPC分类号： H04L1/00
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/0617 , H04B7/0626 , H04B7/0632 , H04L1/0001
摘要： Systems and methods for transmitting packets to a receiver. In an implementation, the method includes storing, in a memory, a plurality of predefined spatial mapping matrices for use in a transmission of one or more packets to a receiver; sequentially transmitting one or more packets to the receiver, in which each of the sequential transmissions of one or more packets comprises using a different one of the plurality of predefined spatial mapping matrices stored in the memory; and selecting one of the plurality of predefined spatial mapping matrices stored in the memory for use in a subsequent transmission of one or more packets to the receiver, in which the selection of the one of the plurality of predefined spatial mapping matrices for use in the subsequent transmission is based on a quality of reception of the one or more data packets transmitted in each of the sequential transmissions.
摘要翻译：用于将数据包发送到接收器的系统和方法。在实现中，该方法包括在存储器中存储多个预定义的空间映射矩阵，用于将一个或多个分组传输到接收机; 顺序地将一个或多个分组发送到接收机，其中一个或多个分组的顺序传输中的每一个包括使用存储在存储器中的多个预定空间映射矩阵中的不同的一个; 以及选择存储在所述存储器中的所述多个预定义的空间映射矩阵中的一个，用于将一个或多个分组的后续传输用于所述接收机，其中所述多个预定空间映射矩阵中的所述一个的选择用于随后的传输基于在每个顺序传输中发送的一个或多个数据分组的接收质量。

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