公开(公告)号：US20070086538A1

公开(公告)日：2007-04-19

申请号：US11253855

申请日：2005-10-18

申请人： Xuemei Ouyang ,  Chiu Ngo

发明人： Xuemei Ouyang ,  Chiu Ngo

IPC分类号： H04L1/02

CPC分类号： H04L1/06 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/04 ,  H04L27/2608

摘要： An improved interleaver design to fully explore the diversity of the MIMO OFDM systems provides higher diversity gain than usual. A method for wireless data communication using such interleaver design implements parsing a bit stream into multiple spatial data streams, interleaving the bits in each spatial data stream by performing bit circulation to increase diversity of the wireless system, and transmitting the bits of each spatial data stream.

摘要翻译： 完全探索MIMO OFDM系统的多样性的改进的交织器设计提供比通常更高的分集增益。 使用这种交织器设计的无线数据通信的方法实现将比特流解析成多个空间数据流，通过执行比特循环来交织每个空间数据流中的比特以增加无线系统的分集，并且发送每个空间数据流的比特 。

公开(公告)号：US20060077944A1

公开(公告)日：2006-04-13

申请号：US10538114

申请日：2003-12-08

申请人： Monisha Ghosh ,  Xuemei Ouyang

发明人： Monisha Ghosh ,  Xuemei Ouyang

IPC分类号： H04B7/208

CPC分类号： H04B7/06 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/06 ,  H04L27/2602 ,  H04L27/2626

摘要： Disclosed is a system and method for providing backward compatible transmitter diversity in an orthogonal frequency division modulated (OFDM) communication system. According to one aspect of the invention, a method for providing backward compatible transmitter diversity includes the steps of: receiving an input data bit stream; transforming it into an OFDM symbol stream comprised of even and odd symbols; dividing the OFDM symbol stream into a first symbol sub-stream and a second symbol sub-stream; processing the first symbol sub-stream by a first processing block to output a first processed symbol sub-stream; processing the second symbol sub-stream by a second processing block to output a second processed symbol sub-stream; transmitting the first processed symbol sub-stream from a first diversity antenna; and transmitting the second processed symbol sub-stream from a second diversity antenna and both are transmitted over non-overlapping frequencies.

摘要翻译： 公开了一种用于在正交频分调制（OFDM）通信系统中提供向后兼容的发射机分集的系统和方法。 根据本发明的一个方面，一种用于提供向后兼容的发射机分集的方法包括以下步骤：接收输入数据比特流; 将其转换成由偶数和奇数符号组成的OFDM符号流; 将OFDM符号流划分为第一符号子流和第二符号子流; 通过第一处理块处理第一符号子流以输出第一处理符号子流; 通过第二处理块处理所述第二符号子流，以输出第二处理符号子流; 从第一分集天线发射所述第一处理符号子流; 并且从第二分集天线发送第二处理符号子流，并且在非重叠频率上发送二者。

公开(公告)号：US07729447B2

公开(公告)日：2010-06-01

申请号：US11317409

申请日：2005-12-22

申请人： Jyh Chau Horng ,  Xuemei Ouyang ,  Chiu Ngo

发明人： Jyh Chau Horng ,  Xuemei Ouyang ,  Chiu Ngo

IPC分类号： H04L27/00

CPC分类号： H04B7/0669 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0083

摘要： A MIMO communication system implements an interleaver design with multiple encoders for more than two transmit antennas for high throughput WLAN communication systems. Multiple encoders are utilized in the transmitter and multiple decoders are utilized in the receiver, wherein each encoder operates at lower clock speed than would be necessary with a single encoder. In conjunction with using multiple encoders, a modified interleaving function for each spatial stream processing allows fully exploring the diversity gains. The provided interleaving function is suitable for transmitter architectures with multiple encoders. Similarly, a modified de-interleaving function is provided that is suitable for receiver architectures with multiple decoders.

摘要翻译： MIMO通信系统对于高吞吐量WLAN通信系统实现用于多于两个发射天线的多个编码器的交织器设计。 在发射机中使用多个编码器，在接收机中使用多个解码器，其中每个编码器以比单个编码器需要的更低的时钟速度工作。 结合使用多个编码器，用于每个空间流处理的修改的交织功能允许充分地探索分集增益。 所提供的交织功能适用于具有多个编码器的发射机架构。 类似地，提供了适用于具有多个解码器的接收机架构的修改的去交织功能。

公开(公告)号：US07660232B2

公开(公告)日：2010-02-09

申请号：US11314929

申请日：2005-12-20

申请人： Xuemei Ouyang ,  Chiu Ngo

发明人： Xuemei Ouyang ,  Chiu Ngo

IPC分类号： H04J11/00

CPC分类号： H04L27/2608 ,  H03M13/271 ,  H04L1/0041 ,  H04L1/0059 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/06

摘要： A MIMO wireless system includes a transmitter having a parser that parses a bit stream into multiple spatial data streams and multiple interleavers corresponding to the multiple spatial data streams, where each interleaver interleaves the bits in the corresponding spatial data stream by performing column skip operation and frequency rotation, to increase diversity of the wireless system. The MIMO wireless system also includes a receiver that has deinterleavers that deinterleaves spatial bit streams transmitted by the transmitter.

摘要翻译： MIMO无线系统包括发射机，其具有将比特流解析为多个空间数据流的解析器和对应于多个空间数据流的多个交织器，其中每个交织器通过执行列跳过操作和频率来交织相应空间数据流中的比特 旋转，以增加无线系统的多样性。 MIMO无线系统还包括具有解交织器的解交织器的接收机，其对由发射机发送的空间比特流进行解交织。

公开(公告)号：US20070248174A1

公开(公告)日：2007-10-25

申请号：US11569009

申请日：2005-05-10

申请人： Monisha Ghosh ,  Xuemei Ouyang

发明人： Monisha Ghosh ,  Xuemei Ouyang

IPC分类号： H04Q11/00

CPC分类号： H04L25/0226 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/04 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2657

摘要： A method and associated systems for implementing MIMO communication systems are disclosed. The systems comprise at least one encoder (120a, 120b) for Reed-Solomon encoding a corresponding input data stream of data packets; at least one interleaver (124a, 124b) for interleaving bits of a corresponding encoded input data stream, at least one mapper (128a, 128b) for mapping the interleaved bits of a corresponding encoded input data stream, at least one inverse FFT (132a, 132b) for determining transforms of the mapped interleaved bits of a corresponding encoded bit stream, at least one cyclic prefix unit (136a, 136b) for determining a cyclic prefix of the transformed mapped interleaved bits of a corresponding encoded bit stream; and, at least one pulse shaper (140a, 140b) for shaping pulses of a corresponding encoded bit stream and means for dividing a data stream into a plurality of input data steams, the input data streams associated with a corresponding communication channel. In addition, the method provides a training sequence 700 that imposes minimal overhead on data transmission.

摘要翻译： 公开了一种用于实现MIMO通信系统的方法和相关系统。 所述系统包括至少一个用于Reed-Solomon编码数据分组的对应输入数据流的编码器（120a，120b）; 至少一个交织器（124a，124b），用于交织对应的编码输入数据流的比特，至少一个映射器（128a，128b），用于映射对应的编码输入数据流的交织比特，至少一个反相 FFT（132a，132b），用于确定相应编码比特流的映射交织比特的变换;至少一个循环前缀单元（136a，136b），用于确定相应编码比特流的经变换的映射交织比特的循环前缀 编码比特流; 以及至少一个脉冲整形器（140a，140b），用于整形对应的编码比特流的脉冲以及用于将数据流分成多个输入数据流的装置，所述输入数据流与对应的通信信道相关联。 此外，该方法提供了对数据传输施加最小开销的训练序列700。

公开(公告)号：US10270511B2

公开(公告)日：2019-04-23

申请号：US11719490

申请日：2005-11-16

申请人： Xuemei Ouyang

发明人： Xuemei Ouyang

IPC分类号： H04B7/06 ,  H04B7/0417 ,  H04N19/102 ,  H04N19/37 ,  H04N19/164 ,  H04N19/187 ,  H04N19/39 ,  H04N19/34

摘要： A system and method is provided wherein channel state information assisted MIMO transmission based on singular value decomposition (SVD) (204) (304) simplifies the decoding process. The present invention is a joint source and channel coding system and method for robust wireless multimedia communication. Using the fact that SVD redistributes the channel energy in a descending way, the base layer of the Fine-Grained-Scalability (FGS) (208) is mapped to the highest signal-to-noise (SNR) path to obtain better protection, while other enhancement layers are mapped to other paths such that less important layers are mapped to lower SNR paths in the SVD-decomposed channel. A multiple description code (MDC) (207) is also used in this manner such that at least one coded stream is provided more protection because of the high SNR. This invention pertains to any MIMO based wireless multimedia communication system.

公开(公告)号：US07729438B2

公开(公告)日：2010-06-01

申请号：US11292851

申请日：2005-12-01

申请人： Xuemei Ouyang ,  Huaning Niu ,  Chiu Ngo

发明人： Xuemei Ouyang ,  Huaning Niu ,  Chiu Ngo

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/0689 ,  H04L1/0041 ,  H04L1/0071 ,  H04L1/0606

摘要： A MIMO wireless system includes a transmitter having a parser that parses a bit stream into multiple spatial data streams and multiple interleavers corresponding to the multiple spatial data streams, where each interleaver interleaves the bits in the corresponding spatial data stream by performing multiple column rotations and row rotation, to increase diversity of the wireless system. The MIMO wireless system also includes a receiver that has deinterleavers that deinterleaves spatial bit streams transmitted by the transmitter.

摘要翻译： MIMO无线系统包括发射机，其具有将比特流解析为多个空间数据流的解析器和对应于多个空间数据流的多个交织器，其中每个交织器通过执行多个列旋转和行来交织相应空间数据流中的比特 旋转，以增加无线系统的多样性。 MIMO无线系统还包括具有解交织器的解交织器的接收机，其对由发射机发送的空间比特流进行解交织。

公开(公告)号：US07613243B2

公开(公告)日：2009-11-03

申请号：US11104808

申请日：2005-04-12

申请人： Xuemei Ouyang ,  Huaning Niu ,  Chiu Ngo

发明人： Xuemei Ouyang ,  Huaning Niu ,  Chiu Ngo

IPC分类号： H04K1/10

CPC分类号： H04L5/0044 ,  H04B7/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0023 ,  H04L27/2626

摘要： A MIMO wireless system includes a transmitter that has a transmitter having a parser that parses a bit stream into multiple spatial data streams and multiple interleavers corresponding to the multiple spatial data streams, where each interleaver interleaves the bits in the corresponding spatial data stream by performing multiple column rotation to increase diversity of the wireless system. The MIMO wireless system also includes a receiver that has deinterleavers that deinterleaves spatial bit streams transmitted by the transmitter.

摘要翻译： MIMO无线系统包括具有发射机的发射机，其具有将比特流解析为多个空间数据流的解析器和对应于多个空间数据流的多个交织器，其中每个交织器通过执行多个空间数据流来交织相应空间数据流中的比特 列旋转以增加无线系统的多样性。 MIMO无线系统还包括具有解交织器的解交织器的接收机，其对由发射机发送的空间比特流进行解交织。

公开(公告)号：US20070140364A1

公开(公告)日：2007-06-21

申请号：US11313403

申请日：2005-12-20

申请人： Xuemei Ouyang ,  Chiu Ngo

发明人： Xuemei Ouyang ,  Chiu Ngo

IPC分类号： H04K1/10 ,  H04L27/00

CPC分类号： H04L5/0046 ,  H03M13/2703 ,  H03M13/276 ,  H03M13/6527 ,  H04L1/0041 ,  H04L1/0059 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/06 ,  H04L5/0023

摘要： A MIMO wireless system includes a transmitter having a parser that parses a bit stream into multiple spatial data streams and multiple interleavers corresponding to the multiple spatial data streams, where each interleaver interleaves the bits in the corresponding spatial data stream by performing frequency rotation after an interleaving operation, to increase diversity of the wireless system. The MIMO wireless system also includes a receiver that has deinterleavers that deinterleaves spatial bit streams transmitted by the transmitter.

摘要翻译： MIMO无线系统包括具有将比特流解析为多个空间数据流的解析器的发射机和对应于多个空间数据流的多个交织器，其中每个交织器在交织之后执行频率旋转来交织相应空间数据流中的比特 操作，增加无线系统的多样性。 MIMO无线系统还包括具有解交织器的解交织器的接收机，其对由发射机发送的空间比特流进行解交织。

公开(公告)号：US07142578B2

公开(公告)日：2006-11-28

申请号：US10150827

申请日：2002-05-17

申请人： Joseph Patrick Meehan ,  Xuemei Ouyang

发明人： Joseph Patrick Meehan ,  Xuemei Ouyang

IPC分类号： H04B1/69

CPC分类号： H01Q21/06 ,  H01Q3/24 ,  H01Q3/26

摘要： A method for a beam forming configuration is provided. A representation of a 3D polygon is formed from a plurality of blocks. The blocks are arranged according to a frequency, a time, and a space within the 3D polygon. Based on the frequency, the time, and the space of an electronic signal, one of the blocks is selected. An equation that is based on the block or to the block and the blocks relationship to one or more of the other blocks is used to form an output.