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    • 21. 发明授权
    • Selectively disabling interference cancellation based on channel dispersion estimation
    • 基于信道色散估计选择性地禁用干扰消除
    • US07826575B2
    • 2010-11-02
    • US12464833
    • 2009-05-12
    • Baoguo YangHuaiyu (Hanks) Zeng
    • Baoguo YangHuaiyu (Hanks) Zeng
    • H04B1/10
    • H04L25/03019H04L25/03254H04L25/03318
    • A channel dispersion estimation algorithm(s) may be implemented within a channel length estimation module of a multi-branch equalizer processing module that disables a branch of the multi-branch equalizer processing module when the channel length or channel delay spread associated with received radio frequency (RF) bursts exceeds a predetermined threshold. The channel dispersion estimation algorithm identifies when the radio frequency (RF) bursts have a channel length or channel delay spread that can affect receiver performance. The channel length estimation module may disable interference cancellation by a branch of the multi-branch equalizer processing module in response to such a channel length or channel delay spread.
    • 可以在多分支均衡器处理模块的信道长度估计模块内实现信道分散估计算法,该方法在与所接收的射频相关的信道长度或信道延迟扩展时禁用多分支均衡器处理模块的分支 (RF)突发超过预定阈值。 信道色散估计算法识别何时射频(RF)突发具有可影响接收机性能的信道长度或信道延迟扩展。 信道长度估计模块可以响应于这种信道长度或信道延迟扩展来禁止多分支均衡器处理模块的分支的干扰消除。
    • 22. 发明授权
    • Space time transmit diversity (STTD) decoder within a HSDPA rake receiver
    • HSDPA耙式接收机内的空时发射分集(STTD)解码器
    • US07715489B2
    • 2010-05-11
    • US11654956
    • 2007-01-18
    • Huaiyu (Hanks) Zeng
    • Huaiyu (Hanks) Zeng
    • H04B7/02
    • H04B7/0894
    • A Space Time Transmit Diversity (STTD) Decoder includes a physical channel despreader, a delay buffer, an upper processing branch, a lower processing branch and a combiner. The upper processing branch is operable to apply a conjugate of a first channel estimate to the delay buffer symbol output and produce non STTD encoded symbols. The lower processing branch is operable to read delayed delay buffer symbol outputs and apply a conjugate of a second channel estimate when active in the STTD mode. The lower processing branch then may apply an STTD decoder scheme to the delay buffer symbol output to produce non STTD encoded symbols. The combiner then combines the non STTD encoded symbols of the upper processing branch and non STTD encoded symbols of the lower processing branch to produce a single set of non STTD encoded symbols.
    • 空时发射分集(STTD)解码器包括物理信道解扩器,延迟缓冲器,上位处理分支,下处理分支和组合器。 上部处理分支可操作以将第一信道估计的共轭应用于延迟缓冲器符号输出并产生非STTD编码符号。 较低处理分支可用于读取延迟的延迟缓冲器符号输出,并且当在STTD模式下有效时,应用第二通道估计的共轭。 然后,较低处理分支可以将STTD解码器方案应用于延迟缓冲器符号输出以产生非STTD编码符号。 然后,组合器组合较高处理分支的非STTD编码符号和较低处理分支的非STTD编码符号,以产生一组非STTD编码符号。
    • 23. 发明申请
    • Method and System for Adaptive Multi Rate (AMR) and Measurements Downlink Adaptation
    • 自适应多速率(AMR)和测量下行链路适配的方法和系统
    • US20100003974A1
    • 2010-01-07
    • US12555795
    • 2009-09-08
    • Huaiyu (Hanks) ZengNelson Sollenberger
    • Huaiyu (Hanks) ZengNelson Sollenberger
    • H04W24/00
    • H04L1/20H04B17/309H04B17/318H04B17/327H04B17/336
    • Various aspects of a method and system for adaptive multi rate and measurements adaptation may include a processor that enables computation of at least one signal level measurement for at least one received signal. The processor may enable cancelling of interfering signals received in addition to the received signal based on processing of a received bit sequence using a first burst process operation (BP) in a first decoding algorithm that utilizes SAIC operations. The processor may also enable cancelling of noise signals received in addition to the received signal based on processing the received bit sequence using a second BP operation that utilizes redundancy and imposes a physical constraint during decoding. The processor may also enable adjustment of the computed at least one signal level measurement.
    • 用于自适应多速率和测量自适应的方法和系统的各个方面可以包括能够对至少一个接收到的信号进行至少一个信号电平测量的计算的处理器。 处理器可以使用在利用SAIC操作的第一解码算法中的第一突发处理操作(BP),基于接收到的比特序列的处理来消除接收到的接收到的信号之外的干扰信号。 处理器还可以基于使用利用冗余并且在解码期间施加物理约束的第二BP操作来处理所接收的比特序列,来除了接收到的信号之外还能够接收到的噪声信号。 处理器还可以使得能够调整所计算的至少一个信号电平测量。
    • 24. 发明申请
    • Equalizer training method using re-encoded bits and known training sequences
    • 均衡器训练方法使用重新编码的位和已知的训练序列
    • US20090207899A1
    • 2009-08-20
    • US12431605
    • 2009-04-28
    • Yue ChenArkady Molev-ShteimanArie HeimanNelson R. SollenbergerHuaiyu (Hanks) ZengBaoguo Yang
    • Yue ChenArkady Molev-ShteimanArie HeimanNelson R. SollenbergerHuaiyu (Hanks) ZengBaoguo Yang
    • H04L27/01
    • H04L25/03171H04L25/03133
    • 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.
    • 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。
    • 25. 发明授权
    • Equalizer training method using re-encoded bits and known training sequences
    • 均衡器训练方法使用重新编码的位和已知的训练序列
    • US07529297B2
    • 2009-05-05
    • US11271692
    • 2005-11-10
    • Yue ChenArkady Molev-ShteimanAric HeimanNelson R. SollenbergerHuaiyu (Hanks) ZengBaoguo Yang
    • Yue ChenArkady Molev-ShteimanAric HeimanNelson R. SollenbergerHuaiyu (Hanks) ZengBaoguo Yang
    • H03H7/30H04B1/10
    • H04L25/03171H04L25/03133
    • 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.
    • 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位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。
    • 28. 发明授权
    • Channel estimation method operable to cancel a dominant disturber signal from a received signal
    • 信道估计方法,用于从接收信号中消除主要干扰信号
    • US07512199B2
    • 2009-03-31
    • US11151029
    • 2005-06-13
    • Arkady Molev-ShteimanArie HeimanHuaiyu (Hanks) Zeng
    • Arkady Molev-ShteimanArie HeimanHuaiyu (Hanks) Zeng
    • H04B1/10
    • H04L25/03292H04L25/0328
    • The present invention provides a processing module operable to produce an improved channel impulse response. This process involves initially estimating the channel impulse response. This result is based on and combined with a known sequences such as that provided by training sequences of the midamble within RF bursts. From this combination, it is possible to produce an estimated signal from a convolution of the channel impulse response and midamble. The estimated signal may be cancelled or subtracted from the received signal to produce a clearer image of the disturber signal. A blind data recovery performed upon the disturber signal. The recovered disturber data may be used as a reference for disturber channel estimation in order to produce a disturber channel impulse response. With the estimated disturber channel impulse response and the recovered disturber data, an estimated disturber signal may be reconstructed and subtracted from the received signal. This allows the cancellation of the estimated disturber signal. Without a clear or dominant disturber signal, a better representation of the main channel impulse response may be produced. This results in more accurate processing of the received RF bursts and improved receiver performance.
    • 本发明提供了可操作以产生改进的信道脉冲响应的处理模块。 该过程包括初始估计信道脉冲响应。 该结果基于已知的序列,例如由RF阵列内的训练序列提供的已知序列。 从该组合,可以从信道脉冲响应和中间码的卷积产生估计信号。 可以从接收到的信号中消除或减去估计信号,以产生干扰信号的更清晰的图像。 对干扰信号执行盲目数据恢复。 恢复的干扰数据可以用作干扰信道估计的参考,以产生干扰信道脉冲响应。 利用估计的干扰信道脉冲响应和恢复的干扰数据,可以重建估计的干扰信号并从接收信号中减去干扰信号。 这允许取消估计的干扰信号。 没有清晰或主导的干扰信号,可以产生主信道脉冲响应的更好的表示。 这导致对接收到的RF突发的更精确的处理和改进的接收机性能。
    • 29. 发明授权
    • Method and system for dynamic range control in an audio processing system
    • 音频处理系统中动态范围控制的方法和系统
    • US08626516B2
    • 2014-01-07
    • US12367854
    • 2009-02-09
    • Hanks ZengPrakash KhanduriKen KasiskeRonish PatelNelson Sollenberger
    • Hanks ZengPrakash KhanduriKen KasiskeRonish PatelNelson Sollenberger
    • G10L19/00G10L21/00
    • H04R3/00H03G9/025H04R2430/03
    • Methods and systems for dynamic range control in an audio processing system are disclosed and may include controlling a dynamic range of an audio signal by expanding the dynamic range utilizing a dynamic expander, and dividing the audio signal into a plurality of frequency bands. Each of the bands may be individually compressed utilizing a multi-band compressor. A sum of the individually compressed frequency bands may be compressed utilizing a full-band compressor. The audio signal may be filtered utilizing a pre-emphasis filter, such as an infinite impulse response filter and may be divided into frequency bands utilizing one or more finite impulse response filters and/or delay modules. The dynamic expander may include adaptive thresholds and an envelope detector. Each of the frequency bands may be compressed utilizing syllabic compression in the multi-band compressor. The compressed sum of compressed plurality of bands may be processed utilizing an audio CODEC.
    • 公开了用于音频处理系统中的动态范围控制的方法和系统,并且可以包括通过使用动态扩展器扩展动态范围并且将音频信号划分成多个频带来控制音频信号的动态范围。 可以使用多频带压缩机来单独压缩每个频带。 可以使用全频带压缩器压缩单独压缩的频带的总和。 可以使用诸如无限脉冲响应滤波器的预加重滤波器来对音频信号进行滤波,并且可以使用一个或多个有限脉冲响应滤波器和/或延迟模块将音频信号分成频带。 动态扩展器可以包括自适应阈值和包络检测器。 可以在多频带压缩器中使用音节压缩来压缩每个频带。 可以使用音频CODEC来处理压缩的多个频带的压缩和。