公开(公告)号：US07978779B2

公开(公告)日：2011-07-12

申请号：US11782528

申请日：2007-07-24

申请人： Wen-Rong Wu ,  Shih-Chi Shen

发明人： Wen-Rong Wu ,  Shih-Chi Shen

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L27/2608 ,  H03M13/09 ,  H03M13/4146 ,  H03M13/6362

摘要： A MIMO OFDM system for TICM includes a tone-level interleaver at the transmitter using a block of NT symbols as its basic unit. This results in different decoding architectures at the receiver. The main advantage of TICM is to merge soft-bit demapping into the Viterbi algorithm. Taking advantage of the trellis structure inherent in the Viterbi algorithm, TICM can have lower computational complexity and potentially better performance than BICM with the LSD detector and the vector demapper. Although the tone-level interleaving may not have spatial diversity gain, the performance is not affected in 802.11n environments.

摘要翻译： 用于TICM的MIMO OFDM系统包括使用NT个符号块作为其基本单元的发射机处的音调级交织器。 这导致接收器处的不同解码架构。 TICM的主要优点是将软位解映射合并到维特比算法中。 利用维特比算法固有的网格结构，利用LSD检测器和向量解映射器，TICM可以具有比BICM更低的计算复杂度和潜在的更好的性能。 虽然音调级交织可能没有空间分集增益，但在802.11n环境中性能不受影响。

公开(公告)号：US20090028253A1

公开(公告)日：2009-01-29

申请号：US11782528

申请日：2007-07-24

申请人： Wen-Rong Wu ,  Shih-Chi Shen

发明人： Wen-Rong Wu ,  Shih-Chi Shen

IPC分类号： H04L27/28

CPC分类号： H04L27/2608 ,  H03M13/09 ,  H03M13/4146 ,  H03M13/6362

摘要： A MIMO OFDM system for TICM is provided. The tone-level interleaver at the transmitter uses a block of NT symbols as its basic unit. This results in different decoding architectures at the receiver. The main advantage of TICM is to merge soft-bit demapping into the Viterbi algorithm. Taking the advantage of the trellis structure inherent in the Viterbi algorithm, TICM can have lower computational complexity and potentially better performance than BICM with the LSD detector and the vector demapper. Although the tone-level interleaving may not have spatial diversity gain, the performance is not affected in 802.11n environments.

摘要翻译： 提供了一种用于TICM的MIMO OFDM系统。 发射机处的音调级交织器使用一个NT符号块作为其基本单位。 这导致接收器处的不同解码架构。 TICM的主要优点是将软位解映射合并到维特比算法中。 利用维特比算法中固有的网格结构，TICM可以比使用LSD检测器和向量解映射器的BICM具有更低的计算复杂度和更好的性能。 虽然音调级交织可能没有空间分集增益，但在802.11n环境中性能不受影响。

公开(公告)号：US20090110113A1

公开(公告)日：2009-04-30

申请号：US12169295

申请日：2008-07-08

申请人： Wen-Rong Wu ,  Shih-Chi Shen ,  Yu-Cheng Lin

发明人： Wen-Rong Wu ,  Shih-Chi Shen ,  Yu-Cheng Lin

IPC分类号： H04L27/00

CPC分类号： H04L5/0044 ,  H04L1/0052 ,  H04L1/0065 ,  H04L1/0071

摘要： Wireless transmitted system and apparatus and method for encoding a plurality of information bits to a plurality of transmitted signals thereof, and wireless received system and apparatus and method for decoding a received signal to a plurality of information bits thereof are provided. The wireless transmitted system encodes a plurality of information bits to a plurality of transmitted signals by two logic operation modules, an interleaving module, and a combination module. The wireless received system decodes a received signal to a plurality of information bits by a division module, two probability generation modules, two status calculation modules, a signal generation module and a combination module.

摘要翻译： 提供了用于将多个信息比特编码到其多个发送信号的无线传输系统和装置和方法，以及用于将接收信号解码为多个信息比特的无线接收系统和装置和方法。 无线发送系统通过两个逻辑运算模块，交织模块和组合模块将多个信息比特编码为多个发送信号。 无线接收系统通过分割模块，两个概率生成模块，两个状态计算模块，信号生成模块和组合模块将接收到的信号解码为多个信息比特。

公开(公告)号：US08218698B2

公开(公告)日：2012-07-10

申请号：US12178674

申请日：2008-07-24

申请人： YingYing Chen ,  Ho-Chi Huang ,  Chun-Ming Kuo ,  Shih-Chi Shen ,  JengYi Tsai

发明人： YingYing Chen ,  Ho-Chi Huang ,  Chun-Ming Kuo ,  Shih-Chi Shen ,  JengYi Tsai

IPC分类号： H04B1/10

CPC分类号： H04L27/0014 ,  H04B7/01 ,  H04L2027/0065 ,  H04L2027/0095

摘要： The invention provides a method for frequency offset estimation according to a filtered signal with destroyed phase information. In one embodiment, a filter filters an original signal according to a series of first filter coefficients to obtain a first-channel component of the filtered signal, and filters the original signal according to a series of second filter coefficients to obtain a second-channel component of the filtered signal. A series of third filter coefficients are first derived from the first filter coefficients. The original signal is then filtered according to the third filter coefficients to obtain a reference signal. A first frequency offset value is estimated according to the first-channel component of the filtered signal and the reference signal, wherein the first-channel component of the filtered signal is a first-channel component of an artificial signal, and the reference signal is a second-channel component of the artificial signal.

摘要翻译： 本发明提供一种根据具有破坏的相位信息的滤波信号进行频率偏移估计的方法。 在一个实施例中，滤波器根据一系列第一滤波器系数对原始信号进行滤波以获得滤波信号的第一信道分量，并且根据一系列第二滤波器系数对原始信号进行滤波以获得第二信道分量 的滤波信号。 首先从第一滤波器系数导出一系列第三滤波器系数。 然后根据第三滤波器系数对原始信号进行滤波以获得参考信号。 根据滤波信号和参考信号的第一通道分量来估计第一频率偏移值，其中滤波信号的第一通道分量是人造信号的第一通道分量，参考信号是 人造信号的第二通道分量。

公开(公告)号：US08514993B2

公开(公告)日：2013-08-20

申请号：US13490056

申请日：2012-06-06

申请人： YingYing Chen ,  Ho-Chi Huang ,  Chun-Ming Kuo ,  Shih-Chi Shen ,  JengYi Tsai

发明人： YingYing Chen ,  Ho-Chi Huang ,  Chun-Ming Kuo ,  Shih-Chi Shen ,  JengYi Tsai

IPC分类号： H04B1/10

CPC分类号： H04L27/0014 ,  H04B7/01 ,  H04L2027/0065 ,  H04L2027/0095

摘要： The invention provides a method for frequency offset estimation according to a filtered signal with destroyed phase information. In one embodiment, a filter filters an original signal according to a series of first filter coefficients to obtain a first-channel component of the filtered signal, and filters the original signal according to a series of second filter coefficients to obtain a second-channel component of the filtered signal. A series of third filter coefficients are first derived from the first filter coefficients. The original signal is then filtered according to the third filter coefficients to obtain a reference signal. A first frequency offset value is estimated according to the first-channel component of the filtered signal and the reference signal, wherein the first-channel component of the filtered signal is a first-channel component of an artificial signal, and the reference signal is a second-channel component of the artificial signal.

摘要翻译： 本发明提供一种根据具有破坏的相位信息的滤波信号进行频率偏移估计的方法。 在一个实施例中，滤波器根据一系列第一滤波器系数对原始信号进行滤波以获得滤波信号的第一信道分量，并且根据一系列第二滤波器系数对原始信号进行滤波以获得第二信道分量 的滤波信号。 首先从第一滤波器系数导出一系列第三滤波器系数。 然后根据第三滤波器系数对原始信号进行滤波以获得参考信号。 根据滤波信号和参考信号的第一声道分量来估计第一频率偏移值，其中滤波后的信号的第一声道分量是人造信号的第一声道分量，参考信号是 人造信号的第二通道分量。