公开(公告)号：US20080260056A1

公开(公告)日：2008-10-23

申请号：US12103698

申请日：2008-04-15

申请人： Jianxuan Du ,  Yue Chen ,  Baoguo Yang

发明人： Jianxuan Du ,  Yue Chen ,  Baoguo Yang

IPC分类号： H04L27/28

CPC分类号： H04L27/2657 ,  H04L25/0212 ,  H04L27/2695

摘要： The present invention provides methods for selecting the coarse frequency offset estimation in an orthogonal frequency division multiplexing system that may include: searching within a predefined subset for a set of frequency offset candidates; selectively searching outside the predefined subset for additional frequency offset candidates; and combining one or more ICDC method and CIR based method to select the coarse frequency offset.

摘要翻译： 本发明提供了用于在正交频分复用系统中选择粗频偏估计的方法，所述正交频分复用系统可以包括：在预定义子集内搜索一组频偏候选; 选择性地在预定义子集之外搜索额外的频率偏移候选; 并组合一个或多个ICDC方法和基于CIR的方法来选择粗频偏移。

公开(公告)号：US20090103667A1

公开(公告)日：2009-04-23

申请号：US12253927

申请日：2008-10-17

申请人： Jianxuan Du ,  Yue Chen ,  Baoguo Yang

发明人： Jianxuan Du ,  Yue Chen ,  Baoguo Yang

IPC分类号： H04L27/06

CPC分类号： H04L27/2647 ,  H04H60/07 ,  H04L27/2656 ,  H04L27/2663 ,  H04L27/2678

摘要： This invention relates to methods for determining coarse symbol timing and mode detection by using CP correlation-based techniques. In particular, this invention relates to methods for determining symbol timing, frame timing, and system mode for signal acquisition, comprising the steps of: detecting symbol timing and system mode based on cyclic prefix correlation; and determining a null symbol as a function of a pre-defined number of consecutive symbols and using said null symbol to determine frame timing.

摘要翻译： 本发明涉及通过使用基于CP相关的技术来确定粗符号定时和模式检测的方法。 具体地说，本发明涉及用于确定信号采集的符号定时，帧定时和系统模式的方法，包括以下步骤：基于循环前缀相关检测符号定时和系统模式; 以及确定作为预定数量的连续符号的函数的空符号，并且使用所述空符号来确定帧定时。

公开(公告)号：US08023597B2

公开(公告)日：2011-09-20

申请号：US12103698

申请日：2008-04-15

申请人： Jianxuan Du ,  Yue Chen ,  Baoguo Yang

发明人： Jianxuan Du ,  Yue Chen ,  Baoguo Yang

IPC分类号： H04L27/06

CPC分类号： H04L27/2657 ,  H04L25/0212 ,  H04L27/2695

摘要： The present invention provides methods for selecting the coarse frequency offset estimation in an orthogonal frequency division multiplexing system that may include: searching within a predefined subset for a set of frequency offset candidates; selectively searching outside the predefined subset for additional frequency offset candidates; and combining one or more ICDC method and CIR based method to select the coarse frequency offset.

摘要翻译： 本发明提供了用于在正交频分复用系统中选择粗频偏估计的方法，所述正交频分复用系统可包括：在预定义子集内搜索一组频偏候选; 选择性地在预定义子集之外搜索额外的频率偏移候选; 并组合一个或多个ICDC方法和基于CIR的方法来选择粗频偏移。

公开(公告)号：US20090110135A1

公开(公告)日：2009-04-30

申请号：US12258362

申请日：2008-10-24

申请人： Jianxuan Du ,  Yue Chen ,  Baoguo Yang

发明人： Jianxuan Du ,  Yue Chen ,  Baoguo Yang

IPC分类号： H04L7/00

CPC分类号： H04L27/2675 ,  H04L27/2665 ,  H04L27/2695

摘要： This invention relates to methods for determining symbol timing shift for a received signal, comprising the steps of: demodulating a received signal; removing a phase reference sequence from the demodulated signal to generate a channel frequency response; converting said channel frequency response to the time domain to generate a channel impulse response; determining a detection threshold; determining a first path and a last path as a function of the detection threshold; and calculating a timing shift as a function of the first path and the last path.

摘要翻译： 本发明涉及用于确定接收信号的符号定时偏移的方法，包括以下步骤：解调所接收的信号; 从解调信号中去除相位参考序列以产生信道频率响应; 将所述信道频率响应转换成时域以产生信道脉冲响应; 确定检测阈值; 确定作为所述检测阈值的函数的第一路径和最后路径; 以及计算作为所述第一路径和所述最后路径的函数的定时偏移。

公开(公告)号：US20060198434A1

公开(公告)日：2006-09-07

申请号：US11271692

申请日：2005-11-10

申请人： Yue Chen ,  Arkady Molev-Shteiman ,  Aric Heiman ,  Nelson Sollenberger ,  Iluaiyu (Ilanks) Zeng ,  Baoguo Yang

发明人： Yue Chen ,  Arkady Molev-Shteiman ,  Aric Heiman ,  Nelson Sollenberger ,  Iluaiyu (Ilanks) Zeng ,  Baoguo Yang

IPC分类号： H03K5/159 ,  H03H7/30 ,  H04B1/10

CPC分类号： H04L25/03171 ,  H04L25/03133

摘要： The present invention provides a multi-branch equalizer processing module operable to cancel interference associated with received radio frequency (RF) burst(s). This multi-branch equalizer processing module includes both a first equalizer processing branch and a second equalizer processing branch. The first equalizer processing branch is operable to be trained based upon known training sequences and equalize the received RF burst. This results in soft samples or decisions which in turn may be converted to data bits. The soft samples are processed with a de-interleaver and channel decoder, where the combination is operable to produce a decoded frame of data bits from the soft samples. A re-encoder may re-encode the decoded frame to produce re-encoded or at least partially re-encoded data bits. An interleaver then processes the at least partially re-encoded data bits to produce and at least partially re-encoded burst. The second equalizer processing branch uses the at least partially re-encoded data bits to train linear equalizer(s) within-the second equalizer processing branch. A buffer may initially store the received RF burst(s), which are retrieved and equalized by the second equalizer processing branch once the linear equalizer(s) are trained. This results in alternate soft samples or decisions which in turn may be converted to alternate data bits. The alternate soft samples are processed with the de-interleaver and channel decoder, where the combination is operable to produce an alternate decoded frame of data bits from the alternate soft samples. This allows interfering signals to be cancelled and more accurate processing of the received RF bursts to occur.

公开(公告)号：US20060198432A1

公开(公告)日：2006-09-07

申请号：US11150925

申请日：2005-06-13

申请人： Huaiyu (Hanks) Zeng ,  Baoguo Yang ,  Arkady Molev-Shteiman ,  Arie Heiman ,  Yue Chen ,  Nelson R. Sollenberger

发明人： Huaiyu (Hanks) Zeng ,  Baoguo Yang ,  Arkady Molev-Shteiman ,  Arie Heiman ,  Yue Chen ,  Nelson R. Sollenberger

IPC分类号： H03H7/30 ,  H03D1/04

CPC分类号： H04L25/03171 ,  H04L25/03133

摘要： The present invention provides a multi-branch equalizer processing module operable to cancel interference associated with received radio frequency (RF) burst(s). This multi-branch equalizer processing module includes both a first equalizer processing branch and a second equalizer processing branch. The first equalizer processing branch is operable to be trained based upon known training sequences and equalize the received RF burst. This results in soft samples or decisions which in turn may be converted to data bits. The soft samples are processed with a de-interleaver and channel decoder, where the combination is operable to produce a decoded frame of data bits from the soft samples. A re-encoder may re-encode the decoded frame to produce re-encoded or at least partially re-encoded data bits. An interleaver then processes the at least partially re-encoded data bits to produce and at least partially re-encoded burst. The second equalizer processing branch uses the at least partially re-encoded data bits to train linear equalizer(s) within the second equalizer processing branch. A buffer may initially store the received RF burst(s), which are retrieved and equalized by the second equalizer processing branch once the linear equalizer(s) are trained. This results in alternate soft samples or decisions which in turn may be converted to alternate data bits. The alternate soft samples are processed with the de-interleaver and channel decoder, where the combination is operable to produce an alternate decoded frame of data bits from the alternate soft samples. This allows interfering signals to be cancelled and more accurate processing of the received RF bursts to occur.

摘要翻译： 本发明提供一种多分支均衡器处理模块，其可操作以消除与接收的射频（RF）突发相关联的干扰。 该多分支均衡器处理模块包括第一均衡器处理分支和第二均衡器处理分支。 第一均衡器处理分支可操作以基于已知的训练序列进行训练，并均衡所接收的RF突发。 这导致软样本或决策，而这些样本或决定又可以转换为数据位。 软采样用解交织器和信道解码器处理，其中组合可操作以从软样本产生解码的数据比特帧。 重新编码器可以对解码的帧进行重新编码，以产生重新编码或至少部分重新编码的数据比特。 交织器然后处理至少部分重新编码的数据比特以产生和至少部分地重新编码突发。 第二均衡器处理分支使用至少部分重新编码的数据比特来训练第二均衡器处理分支内的线性均衡器。 缓冲器可以初始地存储所接收的RF突发，一旦训练了线性均衡器，其将被第二均衡器处理分支检索和均衡。 这导致交替的软样本或决定，这又可以转换为备用数据位。 用去交织器和信道解码器处理替代软样本，其中组合可操作以从备选软样本产生替代解码的数据比特帧。 这允许消除干扰信号并且发生接收的RF突发的更精确的处理。

公开(公告)号：US20100216506A1

公开(公告)日：2010-08-26

申请号：US12711243

申请日：2010-02-23

申请人： Tung Chang ,  Ruei-Shiang Suen ,  Andrea Chen ,  Baoguo Yang ,  Yue Chen

发明人： Tung Chang ,  Ruei-Shiang Suen ,  Andrea Chen ,  Baoguo Yang ,  Yue Chen

IPC分类号： H04W88/06

CPC分类号： H04W88/06

摘要： A mobile phone device utilizing a first communications protocol and a second communications protocol, comprises: a first system having a general processor, a memory, a first communications system providing for the first communications protocol and utilizing a first communications protocol stack, and a first link; a second system having a dedicated communications accelerator providing for the second communications protocol and utilizing a second communications protocol stack, and a second link; wherein the first link and the second link are connected; and wherein the memory in the first system holds the first communications protocol stack and the second communications protocol stack.

摘要翻译： 一种利用第一通信协议和第二通信协议的移动电话设备，包括：第一系统，具有通用处理器，存储器，提供第一通信协议和利用第一通信协议栈的第一通信系统，以及第一链路 ; 第二系统，具有提供第二通信协议和利用第二通信协议栈的专用通信加速器和第二链路; 其中所述第一链路和所述第二链路被连接; 并且其中所述第一系统中的存储器保持所述第一通信协议栈和所述第二通信协议栈。

公开(公告)号：US20090097597A1

公开(公告)日：2009-04-16

申请号：US12252344

申请日：2008-10-15

申请人： Junqiang Li ,  Baoguo Yang ,  Yue Chen

发明人： Junqiang Li ,  Baoguo Yang ,  Yue Chen

IPC分类号： H04L27/06

CPC分类号： H04L27/2675 ,  H04L27/2659

摘要： The present invention provides methods for coarse frequency offset estimation, where those methods may comprise the steps of: removing fading channel impact by calculating accumulated correlation values; removing CCI and phase rotation due to large sampling offset by calculating an accumulation metric as a function of the accumulated correlation values, CCI peak, and initial sampling offset, ξ; and finding the coarse frequency offset as a function of the accumulation metric.

摘要翻译： 本发明提供了粗频偏估计的方法，其中这些方法可以包括以下步骤：通过计算累积相关值消除衰落信道影响; 通过计算累积度量作为累积相关值，CCI峰值和初始采样偏移量xi的函数来消除由于大的采样偏移导致的CCI和相位旋转; 并且找出作为累积度量的函数的粗略频率偏移。

公开(公告)号：US20090097578A1

公开(公告)日：2009-04-16

申请号：US12253015

申请日：2008-10-16

申请人： Junqiang Li ,  Baoguo Yang ,  Yue Chen

发明人： Junqiang Li ,  Baoguo Yang ,  Yue Chen

IPC分类号： H04L27/28

CPC分类号： H04L27/2656 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0092 ,  H04L27/2613

摘要： The present invention relates to methods for TPS demodulation, frame boundary detection, and TPS decoding. In particular, the present invention relates to a method for finding a frame boundary in demodulating an OFDM signal, comprising the steps of: differentially demodulating each symbol to generate differentially demodulated symbol bits; and finding a sync word position when the scatter pilot position equals zero, wherein the sync word position is set as the frame boundary.

摘要翻译： 本发明涉及TPS解调，帧边界检测和TPS解码的方法。 具体地，本发明涉及一种在解调OFDM信号中找到帧边界的方法，包括以下步骤：对每个符号进行差分解调以产生差分解调的符号位; 以及当散射导频位置等于零时找到同步字位置，其中同步字位置被设置为帧边界。

公开(公告)号：US20090207899A1

公开(公告)日：2009-08-20

申请号：US12431605

申请日：2009-04-28

申请人： Yue Chen ,  Arkady Molev-Shteiman ,  Arie Heiman ,  Nelson R. Sollenberger ,  Huaiyu (Hanks) Zeng ,  Baoguo Yang

发明人： Yue Chen ,  Arkady Molev-Shteiman ,  Arie Heiman ,  Nelson R. Sollenberger ,  Huaiyu (Hanks) Zeng ,  Baoguo Yang

IPC分类号： H04L27/01

CPC分类号： H04L25/03171 ,  H04L25/03133

摘要： The present invention provides a multi-branch equalizer processing module operable to cancel interference associated with received radio frequency (RF) burst(s). This multi-branch equalizer processing module includes both a first equalizer processing branch and a second equalizer processing branch. The first equalizer processing branch is operable to be trained based upon known training sequences and equalize the received RF burst. This results in soft samples or decisions which in turn may be converted to data bits. The soft samples are processed with a de-interleaver and channel decoder, where the combination is operable to produce a decoded frame of data bits from the soft samples. A re-encoder may re-encode the decoded frame to produce re-encoded or at least partially re-encoded data bits. An interleaver then processes the at least partially re-encoded data bits to produce and at least partially re-encoded burst. The second equalizer processing branch uses the at least partially re-encoded data bits to train linear equalizer(s) within the second equalizer processing branch. A buffer may initially store the received RF burst(s), which are retrieved and equalized by the second equalizer processing branch once the linear equalizer(s) are trained. This results in alternate soft samples or decisions which in turn may be converted to alternate data bits. The alternate soft samples are processed with the de-interleaver and channel decoder, where the combination is operable to produce an alternate decoded frame of data bits from the alternate soft samples. This allows interfering signals to be cancelled and more accurate processing of the received RF bursts to occur.

摘要翻译： 本发明提供一种多分支均衡器处理模块，其可操作以消除与接收的射频（RF）突发相关联的干扰。 该多分支均衡器处理模块包括第一均衡器处理分支和第二均衡器处理分支。 第一均衡器处理分支可操作以基于已知的训练序列进行训练，并均衡所接收的RF突发。 这导致软样本或决策，而这些样本或决定又可以转换为数据位。 软采样用解交织器和信道解码器处理，其中组合可操作以从软样本产生解码的数据比特帧。 重新编码器可以对解码的帧进行重新编码，以产生重新编码或至少部分重新编码的数据比特。 交织器然后处理至少部分重新编码的数据比特以产生和至少部分地重新编码突发。 第二均衡器处理分支使用至少部分重新编码的数据比特来训练第二均衡器处理分支内的线性均衡器。 缓冲器可以初始地存储所接收的RF突发，一旦训练了线性均衡器，其将被第二均衡器处理分支检索和均衡。 这导致交替的软样本或决定，这又可以转换为备用数据位。 用去交织器和信道解码器处理替代软样本，其中组合可操作以从备选软样本产生替代解码的数据比特帧。 这允许消除干扰信号并且发生接收的RF突发的更精确的处理。