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1. 发明申请

US20120128044A1 METHOD AND DEVICE FOR OPERATING A PRECODED MIMO SYSTEM 审中-公开
标题翻译：用于操作预先编码的MIMO系统的方法和设备
公开(公告)号：US20120128044A1
公开(公告)日：2012-05-24
申请号：US13356441
申请日：2012-01-23
申请人： Taeyoon Kim , Jayesh H. Kotecha
发明人： Taeyoon Kim , Jayesh H. Kotecha
IPC分类号： H04B15/00 , H04B1/38 , H04B1/10 , H04B1/02 , H04B17/00
CPC分类号： H04B7/0465 , H04B1/109 , H04B1/123 , H04B7/002 , H04L1/06 , H04L1/0687 , H04L25/0204
摘要： A method is provided for generating precoder data (600), comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals (610); obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals (620, 630); obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel (620, 630); constraining one or more system performance parameters (640); and determining first and second precoder diagonal values (wA and wB) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters (650).
摘要翻译：提供了一种用于生成预编码器数据（600）的方法，包括：获得指示多个多输入/多输出信号（610）的发射功率的发射功率数据; 获得信号质量数据，所述信号质量数据包括所述多个多输入/多输出信号（620,630）的质量的至少一个度量; 获得关于无线信道的信道数据，所述信道数据包括所述无线信道（620,630）中的多个信道路径中的每一个的相应信道参数的度量; 约束一个或多个系统性能参数（640）; 以及基于所述信号质量数据，所述发射功率数据，所述信道数据以及所述一个或多个受限系统性能参数来确定第一和第二预编码器对角线值（wA和wB）（650）。

2. 发明申请

US20080080632A1 Method and device for operating a precoded MIMO system 有权
标题翻译：用于操作预编码MIMO系统的方法和装置
公开(公告)号：US20080080632A1
公开(公告)日：2008-04-03
申请号：US11529311
申请日：2006-09-29
申请人： Taeyoon Kim , Jayesh H. Kotecha
发明人： Taeyoon Kim , Jayesh H. Kotecha
IPC分类号： H04L1/02
CPC分类号： H04B7/0465 , H04B1/109 , H04B1/123 , H04B7/002 , H04L1/06 , H04L1/0687 , H04L25/0204
摘要： A method is provided for generating precoder data (600), comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals (610); obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals (620, 630); obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel (620, 630); constraining one or more system performance parameters (640); and determining first and second precoder diagonal values (wA and wB) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters (650).
摘要翻译：提供了一种用于生成预编码器数据（600）的方法，包括：获得指示多个多输入/多输出信号（610）的发射功率的发射功率数据; 获得信号质量数据，所述信号质量数据包括所述多个多输入/多输出信号（620,630）的质量的至少一个度量; 获得关于无线信道的信道数据，所述信道数据包括所述无线信道（620,630）中的多个信道路径中的每一个的相应信道参数的度量; 约束一个或多个系统性能参数（640）; 以及基于所述信号质量数据，所述发射功率数据，所述信道数据以及所述一个或多个信道数据来确定第一和第二预编码器对角线值（w A A和W B B）受限系统性能参数（650）。

3. 发明授权

US08102931B2 Method and device for operating a precoded MIMO system 有权
标题翻译：用于操作预编码MIMO系统的方法和设备
公开(公告)号：US08102931B2
公开(公告)日：2012-01-24
申请号：US11529311
申请日：2006-09-29
申请人： Taeyoon Kim , Jayesh H. Kotecha
发明人： Taeyoon Kim , Jayesh H. Kotecha
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B7/0465 , H04B1/109 , H04B1/123 , H04B7/002 , H04L1/06 , H04L1/0687 , H04L25/0204
摘要： A method is provided for generating precoder data (600), comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals (610); obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals (620, 630); obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel (620, 630); constraining one or more system performance parameters (640); and determining first and second precoder diagonal values (wA and wB) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters (650).
摘要翻译：提供了一种用于生成预编码器数据（600）的方法，包括：获得指示多个多输入/多输出信号（610）的发射功率的发射功率数据; 获得信号质量数据，所述信号质量数据包括所述多个多输入/多输出信号（620,630）的质量的至少一个度量; 获得关于无线信道的信道数据，所述信道数据包括所述无线信道（620,630）中的多个信道路径中的每一个的相应信道参数的度量; 约束一个或多个系统性能参数（640）; 以及基于所述信号质量数据，所述发射功率数据，所述信道数据以及所述一个或多个受限系统性能参数来确定第一和第二预编码器对角线值（wA和wB）（650）。

4. 发明申请

US20080101494A1 System and method for generating MIMO signals 审中-公开
标题翻译：用于产生MIMO信号的系统和方法
公开(公告)号：US20080101494A1
公开(公告)日：2008-05-01
申请号：US11589874
申请日：2006-10-31
申请人： Jayesh H. Kotecha , Taeyoon Kim
发明人： Jayesh H. Kotecha , Taeyoon Kim
IPC分类号： H04L1/02
CPC分类号： H04L1/0637
摘要： A method (400) is provided for processing signals in a multiple-input/multiple-output system (200). The method comprises: receiving a stream of B data bits (410); modulating the B data bits into J data symbols chosen from a set symbol constellation (420); converting the J data symbols into L preprecoded symbols based on a preprecoder function (430); encoding the L preprecoded symbols into M symbol streams, each having K encoded symbols, based on a space-time code (440); and providing the M symbol streams on one or more output lines. In this method, B, J, K, L, and M are integers.
摘要翻译：提供了一种用于在多输入/多输出系统（200）中处理信号的方法（400）。该方法包括：接收B数据比特流（410）; 将所述B数据位调制成从集合符号星座（420）中选择的J个数据符号; 基于预重新编码器功能将所述J个数据符号转换为L个预重新编码的符号（430）; 基于空时码（440）将L个预重新编码符号编码为M个符号流，每个符号流具有K个编码符号; 以及在一个或多个输出线上提供M个符号流。在这种方法中，B，J，K，L和M是整数。

5. 发明申请

US20140044215A1 Block-Based Crest Factor Reduction 有权
标题翻译：基于块的波峰因子减少
公开(公告)号：US20140044215A1
公开(公告)日：2014-02-13
申请号：US13569148
申请日：2012-08-07
申请人： Jayakrishnan C. Mundarath , Leo G. Dehner , Jayesh H. Kotecha , Peter Z. Rashev
发明人： Jayakrishnan C. Mundarath , Leo G. Dehner , Jayesh H. Kotecha , Peter Z. Rashev
IPC分类号： H04L25/49
CPC分类号： H04L27/2624
摘要： A method and apparatus for a radio base station (200) generates a multicarrier communication signal having a reduced crest factor by processing a block of samples (231) with a peak search window (271) to identify and suppress signal peaks exceeding a power threshold value.
摘要翻译：无线电基站（200）的方法和装置通过用峰值搜索窗口（271）处理采样块（231）来产生具有降低波峰因数的多载波通信信号，以识别和抑制超过功率阈值的信号峰值。

6. 发明授权

US08625522B2 Techniques for resource block mapping in a wireless communication system 有权
标题翻译：无线通信系统中资源块映射的技术
公开(公告)号：US08625522B2
公开(公告)日：2014-01-07
申请号：US13526419
申请日：2012-06-18
申请人： James W. McCoy , Ning Chen , Jayesh H. Kotecha
发明人： James W. McCoy , Ning Chen , Jayesh H. Kotecha
IPC分类号： H04W4/00 , H04W72/00 , H04J1/00 , H04L12/28
CPC分类号： H04L5/0037 , H04W72/14
摘要： A technique of operating a wireless communication device includes creating a resource block map by associating respective subscriber station identifications, corresponding to respective subscriber stations, with one or more resource blocks. The respective subscriber station identifications and the resource block map are transmitted, from a serving base station, in one or more control channel symbols.
摘要翻译：操作无线通信设备的技术包括通过将对应于各个用户站的各个用户站标识与一个或多个资源块相关联来创建资源块映射。从服务基站在一个或多个控制信道符号中发送相应的用户台标识和资源块映射。

7. 发明授权

US08245092B2 Method for efficient control signaling of two codeword to one codeword transmission 有权
标题翻译：用于将两个码字有效地控制到一个码字传输的方法
公开(公告)号：US08245092B2
公开(公告)日：2012-08-14
申请号：US12264173
申请日：2008-11-03
申请人： Jayesh H. Kotecha , Ian C. Wong , Ning Chen
发明人： Jayesh H. Kotecha , Ian C. Wong , Ning Chen
IPC分类号： H04L1/18
CPC分类号： H04B7/0413 , H04L1/1812 , H04L1/1896
摘要： In a wireless communication system (200), a compact control signaling scheme is provided for signaling the selected retransmission mode and codeword identifier for a codeword retransmission when one of a plurality of codewords (CW1, CW2) being transmitted over two codeword pipes to a receiver (201.i) fails the transmission and when the base station/transmitter (210) switches from a higher order channel rank (231) to a lower order channel rank (241), either by including one or more additional signaling bits in the control signal (240) to identify the retransmitted codeword, or by re-using existing control signal information in a way that can be recognized by the subscriber station/receiver to identify the retransmitted codeword. With the compact control signal, the receiver (201.i) is able to determine which codeword is being retransmitted and to determine the corresponding time-frequency resource allocation for the retransmitted codeword.
摘要翻译：在无线通信系统（200）中，当多个码字（CW1，CW2）中的一个码字（CW1，CW2）通过两个码字管道发送到接收机时，提供紧凑控制信令方案用于信令所选择的重传模式和用于码字重传的码字标识符（201.i）发送失败，并且当基站/发射机（210）从较高阶信道秩（231）切换到较低阶信道秩（241）时，无论是通过在控制中包括一个或多个附加信令比特信号（240）以识别重传的码字，或者以可由用户站/接收机识别重传的码字的方式重新使用现有的控制信号信息。利用紧凑控制信号，接收器（201.i）能够确定哪个码字正被重传并且确定重传的码字的对应的时间 - 频率资源分配。

8. 发明授权

US08199846B2 Generalized reference signaling scheme for multi-user, multiple input, multiple output (MU-MIMO) using arbitrarily precoded reference signals 有权
标题翻译：广泛参考信令方案，用于多用户，多输入，多输出（MU-MIMO）使用任意预编码的参考信号
公开(公告)号：US08199846B2
公开(公告)日：2012-06-12
申请号：US12897417
申请日：2010-10-04
申请人： Jayesh H. Kotecha , Jayakrishnan C. Mundarath
发明人： Jayesh H. Kotecha , Jayakrishnan C. Mundarath
IPC分类号： H04B7/02
CPC分类号： H04B7/0456 , H04B7/0413 , H04B7/0665 , H04L25/03343 , H04L2025/03426 , H04W48/16
摘要： A multi-user multiple-input multiple-output (MU-MIMO) downlink beamforming system (200) is provided to enable transmit beamforming vectors to be efficiently provided to a subset of user equipment devices (201.i), where spatial separation or zero-forcing transmit beamformers (wi) are computed at the base station (210) and used to generate precoded reference signals (216). The precoded reference signals (216) are fed forward to the user equipment devices (201.i) which apply one or more hypothesis tests (207.i, 208.i) to the precoded reference signals to extract the precoding matrix (W), including the specific transmit beamforming vector (WUE) designed for the user equipment, and this extracted information is used to generate receive beamformers (vi).
摘要翻译：提供多用户多输入多输出（MU-MIMO）下行链路波束形成系统（200）以使发送波束成形向量能够有效地提供给用户设备设备（201.i）的子集，其中空间分离或零在基站（210）处计算强制发射波束形成器（wi）并用于产生预编码的参考信号（216）。预编码的参考信号（216）被馈送到用户设备设备（201.i），其将一个或多个假设测试（207.i，208.i）应用于预编码的参考信号以提取预编码矩阵（W）包括为用户设备设计的特定发射波束形成向量（WUE），并且该提取的信息用于生成接收波束形成器（vi）。

9. 发明申请

US20120114064A1 Reference Signaling Scheme Using Compressed Feedforward Codebooks for MU-MIMO Systems 有权
标题翻译：使用压缩前馈码本的MU-MIMO系统的参考信令方案
公开(公告)号：US20120114064A1
公开(公告)日：2012-05-10
申请号：US13100738
申请日：2011-05-04
申请人： Jayesh H. Kotecha , Jayakrishnan C. Mundarath
发明人： Jayesh H. Kotecha , Jayakrishnan C. Mundarath
IPC分类号： H04L27/00
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/0421 , H04B7/0452 , H04B7/0639
摘要： A multi-user MIMO downlink beamforming system with limited feed forward (200) is provided to enable precoding matrix information to be efficiently provided to a subset of user equipment devices (201.i), where zero-forcing transmit beamformers (wi) are computed at the base station (210) and assembled into a precoding matrix (W). The precoding matrix is encoded using a compact reference signal codebook (225, 207.i) for forward link signaling, either by sending bits indicating the index of the transmission matrix used, or by transmitting one or more precoded pilots or reference signals wherein the pilot signals are precoded using vectors uniquely representative of the transmission matrix used which includes candidate reference signal matrices which meet a predetermined condition number requirement, such as a condition number threshold. The precoding matrix information (227) is extracted at the user equipment devices (201.i) using the compact reference signal codebook (207.i) and used by the MMSE receiver (209.i) to generate receive beamformers (vi).
摘要翻译：提供了具有有限的前馈（200）的多用户MIMO下行链路波束成形系统，以使预编码矩阵信息能够有效地提供给用户设备设备（201.i）的子集，其中计算迫零发射波束形成器（wi）在基站（210）处并组装成预编码矩阵（W）。预编码矩阵使用用于前向链路信令的紧凑参考信号码本（225,207.i）进行编码，通过发送指示所使用的传输矩阵的索引的比特，或者通过发送一个或多个预编码的导频或参考信号，其中导频使用唯一地代表所使用的传输矩阵的矢量来对信号进行预编码，该传输矩阵包括符合预定条件数量要求的候选参考信号矩阵，例如条件数阈值。使用紧凑参考信号码本（207.i）在用户设备设备（201.i）处提取预编码矩阵信息（227），并由MMSE接收机（209.i）使用以生成接收波束形成器（vi）。

10. 发明授权

US08020075B2 Channel quality index feedback reduction for broadband systems 有权
标题翻译：宽带系统的频道质量指标反馈减少
公开(公告)号：US08020075B2
公开(公告)日：2011-09-13
申请号：US11687376
申请日：2007-03-16
申请人： Jayesh H. Kotecha
发明人： Jayesh H. Kotecha
IPC分类号： H03M13/00
CPC分类号： H04B7/0456 , H04L1/0029 , H04L5/0057 , H04L43/00 , H04L43/16 , H04W24/00 , H04W28/06 , H04W72/0406 , H04W72/0466
摘要： A system and methodology are disclosed for exploiting channel correlation in time and/or frequency to reduce CQI feedback in wireless communications systems. By compressing CQI feedback at the receiver to reduce redundancy in CQI feedback information that results from the channel correlation, the average feedback rate is reduced. In various embodiments, redundancy in time may be removed from the CQI feedback by monitoring variations of the CQI information in time at the receiver so that CQI information for a given CQI reporting instance is communicated to the transmitter only if it differs from the CQI information for the previous CQI reporting instance. Otherwise, no feedback is performed. In other embodiments, CQI feedback is compressed by performing a discrete cosine transform (DCT) on the CQI data. The compressed CQI feedback information is then communicated to the transmitter through the feedback control channel where it is decoded into the original CQI information and used to generate signal processing information for various sub-carriers.
摘要翻译：公开了一种用于在时间和/或频率上利用信道相关性以减少无线通信系统中的CQI反馈的系统和方法。通过在接收机处压缩CQI反馈以减少由信道相关产生的CQI反馈信息中的冗余，平均反馈速率降低。在各种实施例中，可以通过在接收机处及时监视CQI信息的变化来从CQI反馈中消除时间冗余，使得仅当CQI信息与CQI信息不同时才将CQI给定的CQI报告实例传送给发送器以前的CQI报告实例。否则，不执行任何反馈。在其他实施例中，通过对CQI数据执行离散余弦变换（DCT）来压缩CQI反馈。压缩的CQI反馈信息然后通过反馈控制信道传送到发射机，在该反馈控制信道中，它被解码为原始的CQI信息，并用于生成各种子载波的信号处理信息。

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