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1. 发明申请

US20100330946A1 ENHANCED INTERFERENCE NULLING EQUALIZATION 有权
标题翻译：增强干扰消除均衡
公开(公告)号：US20100330946A1
公开(公告)日：2010-12-30
申请号：US12491122
申请日：2009-06-24
申请人： Sony J. Akkarakaran , Alexei Y. Gorokhov , Dhananjay A. Gore
发明人： Sony J. Akkarakaran , Alexei Y. Gorokhov , Dhananjay A. Gore
IPC分类号： H04B1/06
CPC分类号： H04B7/0871 , H01Q1/246 , H01Q3/2617 , H04B7/0854 , H04B7/0857 , H04B7/0885
摘要： Systems and methodologies are described that facilitate combining received signals from multiple receive antennas in a wireless communication environment. The received signals from the multiple receive antennas can be weighted utilizing an adaptive combination of maximal ratio combining (MRC) and interference nulling. The combination of MRC and interference nulling can be controlled based upon one or more configurable parameters. For instance, a covariance matrix can be modified to include the one or more configurable parameters, and the modified covariance matrix can be utilized in connection with interference nulling. Further, respective values for the one or more configurable parameters can be selected as a function of at least one input (e.g., measured interference-over-thermal (IoT) value, received loading level indicator, eigenvalue distribution of a covariance matrix, . . . ) related to noise correlation.
摘要翻译：描述了在无线通信环境中有助于组合来自多个接收天线的接收信号的系统和方法。可以使用最大比组合（MRC）和干扰归零的自适应组合来加权来自多个接收天线的接收信号。可以基于一个或多个可配置参数来控制MRC和干扰归零的组合。例如，可以修改协方差矩阵以包括一个或多个可配置参数，并且修改的协方差矩阵可以与干扰归零结合使用。此外，可以根据至少一个输入（例如，测量的过热干扰（IoT）值，接收负载水平指示符，协方差矩阵的特征值分布等来选择一个或多个可配置参数的相应值。。）与噪声相关。

2. 发明申请

US20090310526A1 SYSTEMS AND METHODS OF SIMULTANEOUS, TIME-SHIFTED TRANSMISSION TO MULTIPLE RECEIVERS 审中-公开
标题翻译：同时发送多时间接收器的系统和方法
公开(公告)号：US20090310526A1
公开(公告)日：2009-12-17
申请号：US12482215
申请日：2009-06-10
申请人： Dhananjay A. Gore , Edward H. Teague
发明人： Dhananjay A. Gore , Edward H. Teague
IPC分类号： H04H20/71
CPC分类号： H04B7/022 , H04W56/0045
摘要： Systems and methods for communicating with multiple receivers simultaneously are disclosed. In one embodiment, the method comprises applying a first adjustment to a first signal based on a first propagation path delay between a transmitter and a first receiver, combining the adjusted first signal and a second signal, and transmitting a composite signal based on the combined signal substantially concurrently to the first receiver and a second receiver.
摘要翻译：公开了与多个接收器同时通信的系统和方法。在一个实施例中，该方法包括基于发射机和第一接收机之间的第一传播路径延迟对第一信号施加第一调整，组合经调整的第一信号和第二信号，以及基于组合信号发送复合信号基本上同时发送到第一接收器和第二接收器。

3. 发明申请

US20080165891A1 PILOT DESIGN FOR IMPROVED CHANNEL AND INTERFERENCE ESTIMATION 有权
标题翻译：用于改进通道和干扰估计的试验设计
公开(公告)号：US20080165891A1
公开(公告)日：2008-07-10
申请号：US11691243
申请日：2007-03-26
申请人： Petru Cristian Budianu , Dhananjay A. Gore , Alexei Gorokhov
发明人： Petru Cristian Budianu , Dhananjay A. Gore , Alexei Gorokhov
IPC分类号： H04L27/00
CPC分类号： H04L25/0202 , H04L5/0023 , H04L5/0048
摘要： Techniques for transmitting pilot and for processing received pilot to obtain channel and interference estimates are described. A terminal may generate pilot symbols for a first cluster in a time frequency block based on a first sequence and may generate pilot symbols for a second cluster in the time frequency block based on a second sequence. The first and second sequences may include common elements arranged in different orders and may be considered as different versions of a single sequence. The terminal may transmit the pilot symbols in their respective clusters. A base station may obtain received pilot symbols from multiple clusters in the time frequency block. The base station may form each of multiple basis vectors with multiple versions of the sequence assigned to the terminal and may process the received pilot symbols with the multiple basis vectors to obtain a channel estimate for the terminal.
摘要翻译：描述用于发送导频和处理接收导频以获得信道和干扰估计的技术。终端可以基于第一序列在时间频率块中生成用于第一簇的导频符号，并且可以基于第二序列在时间频率块中生成用于第二簇的导频符号。第一和第二序列可以包括以不同顺序排列的公共元素，并且可以被认为是单个序列的不同版本。终端可以在它们各自的簇中发送导频符号。基站可以在时间频率块中从多个簇获得接收到的导频符号。基站可以形成分配给终端的序列的多个版本的多个基本向量中的每一个，并且可以用多个基本向量处理所接收的导频符号以获得终端的信道估计。

4. 发明授权

US06917820B2 Method and apparatus for selection and use of optimal antennas in wireless systems 有权
标题翻译：在无线系统中选择和使用最佳天线的方法和装置
公开(公告)号：US06917820B2
公开(公告)日：2005-07-12
申请号：US09769445
申请日：2001-01-26
申请人： Dhananjay A. Gore , Rohit U. Nabar , Arogyaswami Paulraj , Sumeet Sandhu
发明人： Dhananjay A. Gore , Rohit U. Nabar , Arogyaswami Paulraj , Sumeet Sandhu
IPC分类号： H04B7/06 , H04B7/08 , H04B1/38
CPC分类号： H04B7/0874 , H04B7/061 , H04B7/0639 , H04B7/0673 , H04B7/0691
摘要： A method and apparatus for selecting an optimal set of antennas from a plurality of antennas for use by a transmitter and/or receiver having a plurality of RF chains to transmit and/or receive a wireless signal on a wireless link. According to the invention information concerning transmission of wireless signals on the wireless link is determined and an optimal set of antennas from the plurality of antennas is selected based on the information. Thereafter, the RF chains are connected to the optimal set of antennas to permit transmission and/or reception of the wireless signal from the RF chains on the wireless link via the optimal set of antennas. The RF chains correspond in number to the number of antennas in the optimal set of antennas, and the number of antennas included in the plurality of antennas is greater than the number of RF chains.
摘要翻译：一种用于从多个天线中选择由具有多个RF链发射和/或接收无线信号上的无线信号的发射机和/或接收机使用的最佳天线组的方法和装置。根据本发明，确定关于无线链路上的无线信号的传输的信息，并且基于该信息选择来自多个天线的最佳天线组。此后，RF链连接到最佳的天线集合，以允许经由最佳天线组从无线链路上的RF链发射和/或接收无线信号。 RF链的数量与最佳天线集合中的天线数量相对应，并且包括在多个天线中的天线的数量大于RF链的数量。

5. 发明授权

US08385386B2 Method for transmitting multiple streams in wireless broadcast networks 有权
标题翻译：用于在无线广播网络中发送多个流的方法
公开(公告)号：US08385386B2
公开(公告)日：2013-02-26
申请号：US12782406
申请日：2010-05-18
申请人： Ashok Mantravadi , Dhananjay A. Gore , Krishnamurthy Viswanarhan
发明人： Ashok Mantravadi , Anand D. Subramaniam , Dhananjay A. Gore
IPC分类号： H04B1/00
CPC分类号： H04H20/28 , H04H20/33 , H04H20/42 , H04H20/72 , H04L5/023 , H04L5/06
摘要： Accordingly, a method and apparatus are provided to convert received content into a first stream and a second stream, to transmit said first stream using a first tone and to transmit said second stream using an orthogonal scheme. A layering scheme is used to transmit the base stream covering a smaller area and an enhanced stream is used to cover a large utilizing orthogonal scheme.
摘要翻译：因此，提供了一种方法和装置，用于将接收到的内容转换为第一流和第二流，以使用第一音调发送所述第一流，并使用正交方案发送所述第二流。使用分层方案来传输覆盖较小区域的基本流，并且使用增强流来覆盖大的利用正交方案。

6. 发明授权

US08315660B2 User power offset estimation using dedicated pilot tones for OFDMA 有权
标题翻译：使用OFDMA专用导频音的用户功率偏移估计
公开(公告)号：US08315660B2
公开(公告)日：2012-11-20
申请号：US11675055
申请日：2007-02-14
申请人： Petru Cristian Budianu , Dhananjay A. Gore , Alexei Y. Gorokhov
发明人： Petru Cristian Budianu , Dhananjay A. Gore , Alexei Y. Gorokhov
IPC分类号： H04B7/00
CPC分类号： H04W52/34
摘要： A method of user power offset estimation for a wireless communication system is disclosed. Dedicated pilot symbols transmitted over at least one time-frequency region for a user are received. Power offset of the user is estimated based on the received dedicated pilot symbols.
摘要翻译：公开了一种用于无线通信系统的用户功率偏移估计的方法。接收通过用户的至少一个时间 - 频率区域发送的专用导频符号。基于所接收的专用导频符号来估计用户的功率偏移。

7. 发明申请

US20120155425A1 PILOT DESIGN FOR IMPROVED CHANNEL AND INTERFERENCE ESTIMATION 有权
标题翻译：用于改进通道和干扰估计的试验设计
公开(公告)号：US20120155425A1
公开(公告)日：2012-06-21
申请号：US13402537
申请日：2012-02-22
申请人： Petru Cristian Budianu , Dhananjay A. Gore , Alexei Gorokhov
发明人： Petru Cristian Budianu , Dhananjay A. Gore , Alexei Gorokhov
IPC分类号： H04W72/04
CPC分类号： H04L25/0202 , H04L5/0023 , H04L5/0048
摘要： Techniques for transmitting pilot and for processing received pilot to obtain channel and interference estimates are described. A terminal may generate pilot symbols for a first cluster in a time frequency block based on a first sequence and may generate pilot symbols for a second cluster in the time frequency block based on a second sequence. The first and second sequences may include common elements arranged in different orders and may be considered as different versions of a single sequence. The terminal may transmit the pilot symbols in their respective clusters. A base station may obtain received pilot symbols from multiple clusters in the time frequency block. The base station may form each of multiple basis vectors with multiple versions of the sequence assigned to the terminal and may process the received pilot symbols with the multiple basis vectors to obtain a channel estimate for the terminal.
摘要翻译：描述用于发送导频和处理接收导频以获得信道和干扰估计的技术。终端可以基于第一序列在时间频率块中生成用于第一簇的导频符号，并且可以基于第二序列在时间频率块中生成用于第二簇的导频符号。第一和第二序列可以包括以不同顺序排列的公共元素，并且可以被认为是单个序列的不同版本。终端可以在它们各自的簇中发送导频符号。基站可以在时间频率块中从多个簇获得接收到的导频符号。基站可以形成分配给终端的序列的多个版本的多个基本向量中的每一个，并且可以用多个基本向量处理所接收的导频符号以获得终端的信道估计。

8. 发明申请

US20110019559A1 METHODS AND APPARATUS FOR STABILIZING FORWARD LINK MIMO RATE PREDICTION 审中-公开
标题翻译：用于稳定前向链路MIMO速率预测的方法和装置
公开(公告)号：US20110019559A1
公开(公告)日：2011-01-27
申请号：US12509776
申请日：2009-07-27
申请人： Dhananjay A. Gore , Gwendolyn D. Barriac , Edward Harris Teague
发明人： Dhananjay A. Gore , Gwendolyn D. Barriac , Edward Harris Teague
IPC分类号： H04L12/26 , H04L27/28
CPC分类号： H04L1/0029 , H04B7/0417 , H04B7/063
摘要： A method for stabilizing forward link multiple-input and multiple-output (MIMO) rate prediction is described. The forward link channel quality is measured. Instantaneous channel quality estimates are determined for each instantaneous rank. Each instantaneous channel quality estimate provides an instantaneous rate estimate for the instantaneous rank. Rank defines the number of forward link transmission streams and rate defines the total capacity of the forward link for each rank. The instantaneous rates are filtered to determine an average rate per rank. A maximum rate is selected as the maximum over the determined average rate per rank. The instantaneous rank corresponding to the maximum rate is selected as the optimal rank. The instantaneous rate corresponding to the optimal rank is selected as the optimal rate. The optimal rank and optimal rate are then sent to an access point.
摘要翻译：描述了用于稳定前向链路多输入和多输出（MIMO）速率预测的方法。测量前向链路信道质量。确定每个瞬时等级的瞬时信道质量估计。每个瞬时信道质量估计提供瞬时等级的瞬时速率估计。 Rank定义了前向链路传输流的数量，速率定义了每个等级的前向链路的总容量。过滤瞬时速率以确定每个等级的平均速率。选择最大速率作为每个等级确定的平均速率的最大速率。选择对应于最大速率的瞬时秩为最优秩。选择对应于最优秩的瞬时速率作为最优速率。然后将最优秩和最优速率发送到接入点。

9. 发明授权

US08612502B2 Simplified equalization for correlated channels in OFDMA 有权
标题翻译： OFDMA中相关频道的简化均衡
公开(公告)号：US08612502B2
公开(公告)日：2013-12-17
申请号：US12052248
申请日：2008-03-20
申请人： Petru Cristian Budianu , Hermanth Sampath , Alexei Gorokhov , Dhananjay A. Gore
发明人： Petru Cristian Budianu , Hermanth Sampath , Alexei Gorokhov , Dhananjay A. Gore
IPC分类号： G06F7/38
CPC分类号： H04L5/023 , H04L25/0232 , H04L25/0244 , H04L25/03019 , H04L27/2647 , H04L2025/03414 , H04L2025/03426
摘要： Systems and methodologies are described that facilitate equalization of received signals in a wireless communication environment. Multiple transmit and/or receive antennas and utilize MIMO technology to enhance performance. A single tile of transmitted data, including a set of modulation symbols, can be received at multiple receive antennas, resulting in multiple tiles of received modulation symbols. Corresponding modulation symbols from multiple received tiles can be processed as a function of channel and interference estimates to generate a single equalized modulation symbol. Typically, the equalization process is computationally expensive. However, the channels are highly correlated. This correlation is reflected in the channel estimates and can be utilized to reduce complex equalization operations. In particular, a subset of the equalizers can be generated based upon the equalizer function and the remainder can be generated using interpolation. In addition, the equalizer function itself can be simplified.
摘要翻译：描述了促进无线通信环境中的接收信号的均衡的系统和方法。多个发射和/或接收天线并利用MIMO技术来提高性能。可以在多个接收天线处接收包括一组调制符号的传输数据的单个瓦片，从而导致接收到的调制符号的多个瓦片。来自多个接收瓦片的相应调制符号可以作为信道和干扰估计的函数来处理，以生成单个均衡调制符号。通常，均衡过程在计算上是昂贵的。然而，这些渠道是高度相关的。该相关性反映在信道估计中，并且可以用于减少复数均衡操作。特别地，可以基于均衡器功能生成均衡器的子集，并且可以使用插值来生成余数。此外，均衡器功能本身可以简化。

10. 发明授权

US08422963B2 Rate selection for a quasi-orthogonal communication system 有权
标题翻译：准正交通信系统的速率选择
公开(公告)号：US08422963B2
公开(公告)日：2013-04-16
申请号：US12840570
申请日：2010-07-21
申请人： Ayman Fawzy Naguib , Alexei Gorokhov , Tingfang Ji , Dhananjay A. Gore , Arak Sutivong
发明人： Ayman Fawzy Naguib , Alexei Gorokhov , Tingfang Ji , Dhananjay A. Gore , Arak Sutivong
IPC分类号： H04B1/00 , H04B7/00
CPC分类号： H04L1/0019 , H04L1/0003 , H04L1/0016 , H04L1/06 , H04L25/0212 , H04L25/0228 , H04L25/0242 , H04L25/0256
摘要： A selected rate is received for an apparatus based on a hypothesized signal-to-noise-and-interference ratio (SINR) for the apparatus, and characterized statistics of noise and interference observed at a receiver for the apparatus. Data are processed in accordance with the rate selected for the apparatus.
摘要翻译：基于装置的假设的信噪比干扰比（SINR）为装置接收选定的速率，以及在装置的接收机处观察到的噪声和干扰的特征统计。根据为设备选择的速率处理数据。

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