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61. 发明申请

US20080253471A1 SYSTEMS AND METHODS FOR ADAPTIVE BIT LOADING IN A MULTIPLE ANTENNA ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATION SYSTEM 有权
标题翻译：在多个天线正交频分多址通信系统中自适应加载的系统和方法
公开(公告)号：US20080253471A1
公开(公告)日：2008-10-16
申请号：US12118838
申请日：2008-05-12
申请人： John S. Sadowsky , Minnie Ho , Sumeet Sandhu , Alexander A. Maltsev , Eric A. Jacobsen , Ali S. Sadri
发明人： John S. Sadowsky , Minnie Ho , Sumeet Sandhu , Alexander A. Maltsev , Eric A. Jacobsen , Ali S. Sadri
IPC分类号： H04L27/28
CPC分类号： H04W16/28 , H04B7/0408 , H04L27/2602 , H04W74/02
摘要： In an orthogonal frequency division multiplexed (OFDM) system, a transmitter and/or receiver communicate separate data streams on non-orthogonal spatial channels. Each spatial channel may use the same set of OFDM subcarriers and may take advantage of the multipath characteristics of the spatial channel allowing the communication of additional data without an increase in frequency bandwidth. Space-frequency subcarrier modulation assignments may be dynamically assigned on a per subcarrier basis as well as a per spatial channel basis to help maximize the data-carrying capacity of the channel. In some embodiments, each of the spatial channels may be associated with one of a plurality of spatially diverse antennas. In other embodiments, beamforming may be performed to allow the transmission and/or reception of signals within the spatial channels.
摘要翻译：在正交频分复用（OFDM）系统中，发射机和/或接收机在非正交空间信道上传送单独的数据流。每个空间信道可以使用相同的OFDM子载波集合，并且可以利用空间信道的多径特性，允许附加数据的通信而不增加频带宽度。可以在每个子载波基础上以及每个空间信道基础上动态分配空频子载波调制分配，以帮助最大化信道的数据承载能力。在一些实施例中，每个空间信道可以与多个空间多样的天线中的一个相关联。在其他实施例中，可以执行波束成形以允许空间信道内的信号的发送和/或接收。

62. 发明申请

US20080144732A1 SYSTEMS AND METHODS FOR HIGH-THROUGHPUT WIDEBAND WIRELESS LOCAL AREA NETWORK COMMUNICATIONS 有权
标题翻译：用于高通量宽带无线局域网通信的系统和方法
公开(公告)号：US20080144732A1
公开(公告)日：2008-06-19
申请号：US12035881
申请日：2008-02-22
申请人： Alexander A. Maltsev , Ali S. Sadri , Vadim S. Sergevev , Adrian P. Stephens
发明人： Alexander A. Maltsev , Ali S. Sadri , Vadim S. Sergevev , Adrian P. Stephens
IPC分类号： H04L27/28
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0094 , H04L27/2602 , H04W72/0406 , H04W84/12
摘要： A frame format provides for wideband wireless local area network communications and informs narrower-band communication units when the channels are occupied by wider-band communication units. In some embodiments, the frame format includes a channelization field identifying channels that are used for communicating subsequent wideband fields of a packet, and a wideband-header field communicated on the identified channels. The wideband-header field may identify sub-fields that may be present in the wideband-header field, and may identify the presence of a wideband-data field. A long-compatibility field may be present that provides protection at the MAC level. The long-compatibility field may transport MAC frames that may include medium-reservation information compatible with narrower-band communication units.
摘要翻译：帧格式提供宽带无线局域网通信，并且当信道被更宽带通信单元占用时通知窄带通信单元。在一些实施例中，帧格式包括识别用于传送分组的后续宽带字段的信道的信道化字段以及在所识别的信道上传送的宽带报头字段。宽带报头字段可以标识可能存在于宽带报头字段中的子字段，并且可以识别宽带数据字段的存在。可能存在在MAC级提供保护的长兼容性字段。长兼容性字段可以传送可能包括与窄带通信单元兼容的媒体预留信息的MAC帧。

63. 发明授权

US07756471B2 Systems and methods for multi-element antenna arrays with aperture control shutters 有权
标题翻译：具有孔径控制百叶窗的多元件天线阵列的系统和方法
公开(公告)号：US07756471B2
公开(公告)日：2010-07-13
申请号：US11695003
申请日：2007-03-31
申请人： Siavash Alamouti , Alexander A. Maltsev , Nikolay Chistyakov
发明人： Siavash Alamouti , Alexander A. Maltsev , Nikolay Chistyakov
IPC分类号： H04B7/14
CPC分类号： H01Q19/062 , H01Q3/2658 , H01Q13/10
摘要： Embodiments include systems and methods for controlling beam direction of an array of antenna elements in a wireless communications system. In one embodiment, aperture control shutters substantially cover each radiating antenna element. Each aperture control shutter is selectively turned on or off to control the direction of a beam of the antenna array.
摘要翻译：实施例包括用于控制无线通信系统中的天线元件阵列的波束方向的系统和方法。在一个实施例中，孔径控制百叶窗基本上覆盖每个辐射天线元件。选择性地打开或关闭每个光圈控制快门以控制天线阵列的光束的方向。

64. 发明授权

US07336597B2 System and method for two channel frequency offset estimation of OFDM signals 有权
标题翻译： OFDM信号双信道频偏估计的系统和方法
公开(公告)号：US07336597B2
公开(公告)日：2008-02-26
申请号：US10675240
申请日：2003-09-30
申请人： Alexander A. Maltsev , Andrey V. Pudeyev , Alexei M. Soupikov , Dmitry V. Akhmetov
发明人： Alexander A. Maltsev , Andrey V. Pudeyev , Alexei M. Soupikov , Dmitry V. Akhmetov
IPC分类号： H04J11/00
CPC分类号： H04L27/266 , H04L27/2659 , H04L27/2675
摘要： An orthogonal frequency division multiplexed (OFDM) receiver achieves improved frequency synchronization by generating a fine frequency offset of an OFDM packet with a two-channel frequency offset estimation scheme. Concurrent autocorrelations are performed with training symbols delayed by one and two durations of the training symbols. The respective correlation outputs are integrated over one and a half durations and one half duration to generate phase shift estimates. The phase shift estimates are weighted and combined to generate the fine frequency offset estimate which is used to rotate the phase of OFDM data symbols prior to performing a Fast Fourier Transform (FFT) on the data symbols.
摘要翻译：正交频分复用（OFDM）接收机通过利用双信道频偏估计方案生成OFDM分组的精细频率偏移来实现改进的频率同步。训练符号延时一个和两个持续时间的训练符号执行并发自相关。相应的相关输出在一个半持续时间和一半的时间内被积分以产生相移估计。相移估计被加权并组合以产生精细频率偏移估计，其用于在对数据符号执行快速傅里叶变换（FFT）之前旋转OFDM数据符号的相位。

65. 发明授权

US07683844B2 Mm-wave scanning antenna 失效
标题翻译：微波扫描天线
公开(公告)号：US07683844B2
公开(公告)日：2010-03-23
申请号：US11803918
申请日：2007-05-16
申请人： Siavash Alamouti , Alexander A. Maltsev , Nikolav Chistyakov , Alexey Artemenko
发明人： Siavash Alamouti , Alexander A. Maltsev , Nikolav Chistyakov , Alexey Artemenko
IPC分类号： H01Q19/06
CPC分类号： H01Q3/245 , H01Q1/38 , H01Q19/062 , H01Q21/065
摘要： In general, in one aspect, the disclosure describes a semiconductor antenna having a plurality of antenna elements and a switching network formed in the same semiconductor die. The switching network is to control activation of the antenna elements.
摘要翻译：通常，一方面，本公开描述了具有多个天线元件的半导体天线和形成在同一半导体管芯中的开关网络。交换网络是控制天线元件的激活。

66. 发明申请

US20080238795A1 SYSTEMS AND METHODS FOR MULTI-ELEMENT ANTENNA ARRAYS WITH APERTURE CONTROL SHUTTERS 有权
标题翻译：具有孔径控制切换器的多元素天线阵列的系统和方法
公开(公告)号：US20080238795A1
公开(公告)日：2008-10-02
申请号：US11695003
申请日：2007-03-31
申请人： Siavash Alamouti , Alexander A. Maltsev , Nikolay Chistyakov
发明人： Siavash Alamouti , Alexander A. Maltsev , Nikolay Chistyakov
IPC分类号： H01Q21/00 , H01Q13/10
CPC分类号： H01Q19/062 , H01Q3/2658 , H01Q13/10
摘要： Embodiments include systems and methods for controlling beam direction of an array of antenna elements in a wireless communications system. In one embodiment, aperture control shutters substantially cover each radiating antenna element. Each aperture control shutter is selectively turned on or off to control the direction of a beam of the antenna array.
摘要翻译：实施例包括用于控制无线通信系统中的天线元件阵列的波束方向的系统和方法。在一个实施例中，孔径控制百叶窗基本上覆盖每个辐射天线元件。选择性地打开或关闭每个光圈控制快门以控制天线阵列的光束的方向。

67. 发明申请

US20100296611A1 DOWNLINK PREAMBLE PROCESSING TECHNIQUES FOR INITIAL ACQUISITION 有权
标题翻译：用于初始获取的下行链路预处理技术
公开(公告)号：US20100296611A1
公开(公告)日：2010-11-25
申请号：US11993342
申请日：2005-06-30
申请人： Alexander A. Maltsev , Alexey Rubtsov , Andrey Pudeyev , Vadim Sergeyev , Sergey Tiraspolsky , Alexey Davydov
发明人： Alexander A. Maltsev , Alexey Rubtsov , Andrey Pudeyev , Vadim Sergeyev , Sergey Tiraspolsky , Alexey Davydov
IPC分类号： H04L27/06
CPC分类号： H04B1/70757 , H04L2027/0026
摘要： An apparatus, system, method, and article for downlink (DL) preamble processing for initial acquisition are described. The apparatus may include an autocorrelator node to determine an autocorrelation response of samples and to detect a downlink preamble based on the autocorrelation response. The samples may include a periodic sequence having two or more periods. The apparatus may include a frequency domain matched filter processing node to perform downlink preamble recognition based on a maximum peak of a frequency domain matched filter response and on an index of the downlink preamble. Other embodiments are described and claimed.
摘要翻译：描述用于初始采集的下行链路（DL）前导码处理的装置，系统，方法和文章。该装置可以包括自相关器节点，用于确定采样的自相关响应并且基于自相关响应来检测下行链路前导码。样本可以包括具有两个或更多个周期的周期序列。该装置可以包括频域匹配滤波处理节点，用于基于频域匹配滤波器响应的最大峰值和下行链路前导码的索引来执行下行链路前导码识别。描述和要求保护其他实施例。

68. 发明申请

US20080284655A1 Mm-wave scanning antenna 失效
标题翻译：微波扫描天线
公开(公告)号：US20080284655A1
公开(公告)日：2008-11-20
申请号：US11803918
申请日：2007-05-16
申请人： Siavash Alamouti , Alexander A. Maltsev , Nikolav Chistyakov , Alexey Artemenko
发明人： Siavash Alamouti , Alexander A. Maltsev , Nikolav Chistyakov , Alexey Artemenko
IPC分类号： H01Q21/29 , H01Q1/38
CPC分类号： H01Q3/245 , H01Q1/38 , H01Q19/062 , H01Q21/065
摘要： In general, in one aspect, the disclosure describes a semiconductor antenna having a plurality of antenna elements and a switching network formed in the same semiconductor die. The switching network is to control activation of the antenna elements.
摘要翻译：通常，一方面，本公开描述了具有多个天线元件的半导体天线和形成在同一半导体管芯中的开关网络。交换网络是控制天线元件的激活。

69. 发明授权

US07457366B2 System and method for adaptive phase compensation of OFDM signals 失效
标题翻译： OFDM信号自适应相位补偿的系统和方法
公开(公告)号：US07457366B2
公开(公告)日：2008-11-25
申请号：US10675215
申请日：2003-09-30
申请人： Alexander A. Maltsev , Alexey E. Rubtsov , Alexei M. Soupikov
发明人： Alexander A. Maltsev , Alexey E. Rubtsov , Alexei M. Soupikov
IPC分类号： H04K1/10
CPC分类号： H04L27/2657 , H04L27/2675 , H04L27/2695
摘要： An OFDM receiver applies phase compensation to subcarriers of data symbols of an OFDM packet. A phase compensation estimate is generated from pilot subcarriers within the data symbol and applied to the subcarriers of the data symbol prior to demapping. The pilot subcarriers of the data symbol are combined and weighted to generate an observation vector. Recursive filtering is performed on the observation vector to generate the phase compensation estimate. The recursive filtering may include performing an extended Kalman-type filtering (EKF) operation on the observation vector using a channel estimate, an additive noise power estimate, a signal to noise ratio (SNR) estimate and a priori information about a dynamic model of the phase noise spectrum of transceiver oscillators. The channel estimate may be generated from a long training symbol of the OFDM packet, and the additive noise power estimate and the SNR estimate may be generated from short training symbols of the OFDM packet.
摘要翻译： OFDM接收机对OFDM分组的数据符号的子载波进行相位补偿。从数据符号内的导频子载波产生相位补偿估计，并将其应用于解映射之前的数据符号的子载波。数据符号的导频子载波被组合和加权以产生观测向量。对观测向量进行递归滤波，生成相位补偿估计。递归滤波可以包括使用信道估计，加性噪声功率估计，信噪比（SNR）估计和有关动态模型的先验信息对观测向量执行扩展卡尔曼型滤波（EKF）收发器振荡器的相位噪声谱。可以从OFDM分组的长训练符号生成信道估计，并且可以从OFDM分组的短训练符号生成加性噪声功率估计和SNR估计。

70. 发明授权

US07251282B2 Receiver and method to detect and synchronize with a symbol boundary of an OFDM symbol 有权
标题翻译：用于检测和与OFDM符号的符号边界同步的接收机和方法
公开(公告)号：US07251282B2
公开(公告)日：2007-07-31
申请号：US10675213
申请日：2003-09-30
申请人： Alexander A. Maltsev , Andrey V. Pudeyev , Alexei M. Soupikov , Sergey A. Triaspolsky
发明人： Alexander A. Maltsev , Andrey V. Pudeyev , Alexei M. Soupikov , Sergey A. Triaspolsky
IPC分类号： H04K1/10 , H04B1/69
CPC分类号： H04L27/2675 , H04L7/041 , H04L7/10 , H04L27/2663 , H04L27/2665
摘要： An OFDM packet is initially detected by auto-correlating short training symbols to generate an initial packet detection signal. The initial packet detection signal may be used to initiate a coarse timing synchronization process, which may use a short symbol matched filter. A coarse timing signal may be generated from at least some of the short training symbols by correlating sampled short training symbols with short filter matched coefficients. The coarse-timing signal may be used to initiate the operation of a fine timing synchronization process, which may use a long symbol matched filter. A fine timing signal may be generated from at least some of the long training symbols by correlating sampled long training symbols with long filter-matched coefficients. The fine timing signal may be used to initiate channel estimation by performing a Fast Fourier Transform (FFT) operation on the long training symbols. The fine timing signal may also be used to initiate data signal processing using the channel estimation and may include starting an FFT operation on data symbols.
摘要翻译：最初通过自动相关短训练符号来检测OFDM分组，以产生初始分组检测信号。初始分组检测信号可以用于发起可以使用短符号匹配滤波器的粗略定时同步过程。通过将采样的短训练符号与短的滤波器匹配系数相关联，可以从至少一些短训练符号生成粗定时信号。粗定时信号可以用于启动精细定时同步过程的操作，其可以使用长符号匹配滤波器。通过将采样的长训练符号与长滤波器匹配系数相关联，可以从至少一些长训练符号生成精细定时信号。精细定时信号可以用于通过对长训练符号执行快速傅里叶变换（FFT）操作来启动信道估计。精细定时信号也可以用于使用信道估计来启动数据信号处理，并且可以包括对数据符号开始FFT操作。

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