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1. 发明授权

US08654880B2 Data transmission using low density parity check coding and constellation mapping 有权
标题翻译：数据传输采用低密度奇偶校验编码和星座映射
公开(公告)号：US08654880B2
公开(公告)日：2014-02-18
申请号：US13388810
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04B7/02
CPC分类号： H04L27/3488 , H03M13/1171 , H03M13/15 , H03M13/1515 , H03M13/255 , H03M13/2732 , H03M13/2906 , H03M13/356 , H04L1/0041 , H04L1/0058 , H04L1/0071 , H04L27/2626 , H04L27/3405 , H04L27/36
摘要： Modern coding and modulation techniques have greatly improved the transmission of signals. A method is described including receiving a stream of data bits, demultiplexing the stream into a first and second substream, encoding the first and second substream using a low density parity check coding process, and mapping the first substream to a first region of a symbol constellation map and the second substream to a second region. Also, an apparatus is described including a demultiplexer that produces a first and second bitstream, a first encoder that encodes the first substream using a low density parity check coding process at a first encoding rate, a second encoder that encodes the second substream at a second rate, and a symbol mapper that maps bits from the first substream to a first region of a symbol constellation map and maps bits from the second substream to a second region.
摘要翻译：现代编码和调制技术大大提高了信号的传输。描述了一种方法，包括接收数据比特流，将流解复用为第一和第二子流，使用低密度奇偶校验编码过程对第一和第二子流进行编码，以及将第一子流映射到符号星座的第一区域将第二子流映射到第二区域。此外，描述了一种包括产生第一和第二比特流的解复用器的装置，使用第一编码率的低密度奇偶校验编码处理对第一子流进行编码的第一编码器，第二编码器，其在第二编码器中编码第二子流速率，以及符号映射器，其将来自第一子流的比特映射到符号星座图的第一区域，并将来自第二子流的比特映射到第二区域。

2. 发明授权

US08660203B2 Data reception using low density parity check coding and constellation mapping 有权
标题翻译：数据接收使用低密度奇偶校验编码和星座映射
公开(公告)号：US08660203B2
公开(公告)日：2014-02-25
申请号：US13388820
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04B7/02
CPC分类号： H04L27/38 , H03M13/655 , H03M13/6552 , H04L27/2647 , H04L27/3405 , H04L27/3488
摘要： Modern coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
摘要翻译：现代编码和调制技术大大提高了信号的发送和接收。描述了一种方法，包括接收将信号解映射到第一和第二子流中的信号，使用低密度奇偶校验解码过程对第一和第二子流进行解码，以及将第一和第二解码子流合并成单个数据流。描述了一种装置，其包括接收将信号中的调制符号解映射成第一和第二子流的信号的符号解映射器，第一解码器，其在第一解码时使用低密度奇偶校验编码处理对第一子流进行解码速率，以第二编码速率解码第二子流的第二解码器，以及将第一子流和第二子流组合成单个数据流的组合器。

3. 发明申请

US20120134446A1 METHOD AND APPARATUS FOR RECEIVING DATA 有权
标题翻译：接收数据的方法和装置
公开(公告)号：US20120134446A1
公开(公告)日：2012-05-31
申请号：US13388820
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04L27/06 , H03D1/02
CPC分类号： H04L27/38 , H03M13/655 , H03M13/6552 , H04L27/2647 , H04L27/3405 , H04L27/3488
摘要： Modem coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
摘要翻译：调制解调器编码和调制技术大大改善了信号的发送和接收。描述了一种方法，包括接收将信号解映射到第一和第二子流中的信号，使用低密度奇偶校验解码过程对第一和第二子流进行解码，以及将第一和第二解码子流合并成单个数据流。描述了一种装置，其包括接收将信号中的调制符号解映射成第一和第二子流的信号的符号解映射器，第一解码器，其在第一解码时使用低密度奇偶校验编码处理对第一子流进行解码速率，以第二编码速率解码第二子流的第二解码器，以及将第一子流和第二子流组合成单个数据流的组合器。

4. 发明申请

US20120134423A1 DATA TRANSMISSION USING LOW DENSITY PARITY CHECK CODING AND CONSTELLATION MAPPING 有权
标题翻译：数据传输使用低密度奇偶校验编码和协调映射
公开(公告)号：US20120134423A1
公开(公告)日：2012-05-31
申请号：US13388810
申请日：2010-07-20
申请人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
发明人： Wei Zhou , Li Zou , Yuping Zhao , Xiaoxin Zhang , Peng Liu , Charles Chuanming Wang
IPC分类号： H04N7/26 , H04N7/24
CPC分类号： H04L27/3488 , H03M13/1171 , H03M13/15 , H03M13/1515 , H03M13/255 , H03M13/2732 , H03M13/2906 , H03M13/356 , H04L1/0041 , H04L1/0058 , H04L1/0071 , H04L27/2626 , H04L27/3405 , H04L27/36
摘要： Modern coding and modulation techniques have greatly improved the transmission of signals. A method is described including receiving a stream of data bits, demultiplexing the stream into a first and second substream, encoding the first and second substream using a low density parity check coding process, and mapping the first substream to a first region of a symbol constellation map and the second substream to a second region. Also, an apparatus is described including a demultiplexer that produces a first and second bitstream, a first encoder that encodes the first substream using a low density parity check coding process at a first encoding rate, a second encoder that encodes the second substream at a second rate, and a symbol mapper that maps bits from the first substream to a first region of a symbol constellation map and maps bits from the second substream to a second region.
摘要翻译：现代编码和调制技术大大提高了信号的传输。描述了一种方法，包括接收数据比特流，将流解复用为第一和第二子流，使用低密度奇偶校验编码过程对第一和第二子流进行编码，以及将第一子流映射到符号星座的第一区域将第二子流映射到第二区域。此外，描述了一种包括产生第一和第二比特流的多路分解器的装置，使用第一编码率的低密度奇偶校验编码处理对第一子流进行编码的第一编码器，第二编码器，其在第二编码器中编码第二子流速率，以及符号映射器，其将来自第一子流的比特映射到符号星座图的第一区域，并将来自第二子流的比特映射到第二区域。

5. 发明授权

US08699588B2 Self-adaptive frequency interpolator for use in a multi-carrier receiver 有权
标题翻译：用于多载波接收机的自适应频率插值器
公开(公告)号：US08699588B2
公开(公告)日：2014-04-15
申请号：US12733455
申请日：2008-09-19
申请人： Peng Liu , Li Zou
发明人： Peng Liu , Li Zou
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L25/0232 , H04L25/0204 , H04L25/0216 , H04L27/2647
摘要： A Digital Video Broadcasting-Terrestrial/Handheld (DVB-T/H) receiver comprises a controller and a frequency interpolator for use in estimating channel state information (CSI) information of a received signal by frequency interpolation. The controller determines a multi-path delay (Tmax) for the received signal and adjusts the bandwidth of the frequency interpolator as a function of the determined multi-path delay. For example, when the multi-path delay is small, the bandwidth of the frequency interpolator is adjusted to be smaller than the bandwidth of the frequency interpolator when the multi-path delay is large. In addition, the controller may also change the coefficients of the frequency interpolator such that different word lengths are used for the coefficients as a function of the determined multi-path delay.
摘要翻译：数字视频广播 - 地面/手持（DVB-T / H）接收机包括控制器和频率插值器，用于通过频率插值来估计接收信号的信道状态信息（CSI）信息。控制器确定接收信号的多径延迟（Tmax），并根据确定的多径延迟调整频率插值器的带宽。例如，当多径延迟小时，当多路径延迟较大时，频率插值器的带宽被调整为小于频率插值器的带宽。另外，控制器还可以改变频率插值器的系数，使得不同的字长度被用作系数，作为确定的多径延迟的函数。

6. 发明授权

US08385473B2 Apparatus and method for classifying modulations in multipath environments 有权
标题翻译：在多路径环境中分类调制的装置和方法
公开(公告)号：US08385473B2
公开(公告)日：2013-02-26
申请号：US12450215
申请日：2007-03-16
申请人： Peng Liu , Li Zou
发明人： Peng Liu , Li Zou
IPC分类号： H04L27/00
CPC分类号： H04L27/0012 , H04L27/2601
摘要： A receiver supports a single carrier (SC) form of modulation and a multi-carrier form of modulation such as orthogonal frequency division multiplexing (OFDM). Upon receiving a signal, the receiver determines a maximum fluctuation range (MFR) as a function of at least a fourth-order cumulant of a received signal; and classifies a modulation type of the received signal as a function of the determined maximum fluctuation range. After determining the modulation type of the received signal, the receiver switches to that modulation mode to recover data from the received signal.
摘要翻译：接收机支持单载波（SC）形式的调制和诸如正交频分复用（OFDM）的多载波调制形式。在接收到信号时，接收机确定作为接收信号的至少四阶累积量的函数的最大波动范围（MFR）; 并且根据确定的最大波动范围对接收信号的调制类型进行分类。在确定接收信号的调制类型之后，接收机切换到该调制模式以从接收到的信号中恢复数据。

7. 发明申请

US20100119013A1 APPARATUS AND METHOD FOR REMOVING COMMON PHASE ERROR IN A DVB-T/H RECEIVER 有权
标题翻译：在DVB-T / H接收机中移除通用相位误差的装置和方法
公开(公告)号：US20100119013A1
公开(公告)日：2010-05-13
申请号：US12452407
申请日：2007-06-29
申请人： Peng Liu , Jilin Zou , Li Zou
发明人： Peng Liu , Jilin Zou , Li Zou
IPC分类号： H04L27/22
CPC分类号： H04L27/2647 , H04L25/022 , H04L25/03159 , H04L27/3854
摘要： A receiver is a Digital Video Broadcasting-Terrestrial/Handheld (DVB-T/H) receiver. The DVB-T/H receiver comprises a fast fourier transform (FFT) operative on a signal for providing an FFT output signal comprising a number of samples; a spectrum shifter for reordering the samples in the FFT output signal to provide a spectrum shifted signal; and a phase corrector for estimating a phase error from the FFT output signal and for correcting a phase of the spectrum shifted signal in accordance with the estimated phase error.
摘要翻译：接收机是数字视频广播地面/手持（DVB-T / H）接收机。 DVB-T / H接收机包括对信号进行操作的快速傅里叶变换（FFT），用于提供包括多个样本的FFT输出信号; 用于对FFT输出信号中的采样进行重新排序以提供频谱移位信号的频谱移位器; 以及相位校正器，用于根据所估计的相位误差估计来自FFT输出信号的相位误差并用于校正频移信号的相位。

8. 发明申请

US20100002788A1 INTERPOLATING METHOD FOR AN OFDM SYSTEM AND CHANNEL ESTIMATION METHOD AND APPARATUS 审中-公开
标题翻译：用于OFDM系统和信道估计方法和装置的插值方法
公开(公告)号：US20100002788A1
公开(公告)日：2010-01-07
申请号：US12448886
申请日：2007-01-19
申请人： Yiling Wu , Li Zou , Peng Liu
发明人： Yiling Wu , Li Zou , Peng Liu
IPC分类号： H04L27/28
CPC分类号： H04L25/0232 , H04L5/0007 , H04L5/0048 , H04L5/006 , H04L25/0226 , H04L27/2601
摘要： The present invention provides an interpolating method for an OFDM system, a channel estimation method and apparatus, in which each OFDM symbol has scattered pilots inserted, and the interpolating method comprising: the step of inserting at least one copy of the first scattered pilot in each OFDM symbol before the first scattered pilot as virtual pilots, and inserting at least one copy of the last scattered pilot in each OFDM symbol behind the last scattered pilot as virtual pilots, after obtaining the channel state information on the sub-channels which propagate the scattered pilots in the OFDM symbols by linear filtering; and the step of performing interpolation by a FIR filter with the channel state information.
摘要翻译：本发明提供了一种用于OFDM系统的内插方法，信道估计方法和装置，其中每个OFDM符号具有插入的散射导频，并且所述内插方法包括：将每个所述第一分散导频的至少一个副本插入到每个在第一散射导频之前的OFDM符号作为虚拟导频，并且在获得在传播散射的子信道上的信道状态信息之后，将最后分散导频后面的每个OFDM符号中的最后分散导频的至少一个拷贝插入虚拟导频 OFDM符号中的导频通过线性滤波; 以及通过具有信道状态信息的FIR滤波器进行插值的步骤。

9. 发明申请

US20110129035A1 SELF-ADAPTIVE FREQUENCY INTERPOLATOR FOR USE IN A MULTI-CARRIER RECEIVER 有权
标题翻译：用于多载波接收机的自适应频率插值器
公开(公告)号：US20110129035A1
公开(公告)日：2011-06-02
申请号：US12733455
申请日：2008-09-19
申请人： Peng Liu , Li Zou
发明人： Peng Liu , Li Zou
IPC分类号： H04L27/00
CPC分类号： H04L25/0232 , H04L25/0204 , H04L25/0216 , H04L27/2647
摘要： A Digital Video Broadcasting-Terrestrial/Handheld (DVB-T/H) receiver comprises a controller and a frequency interpolator for use in estimating channel state information (CSI) information of a received signal by frequency interpolation. The controller determines a multi-path delay (Tmax) for the received signal and adjusts the bandwidth of the frequency interpolator as a function of the determined multi-path delay. For example, when the multi-path delay is small, the bandwidth of the frequency interpolator is adjusted to be smaller than the bandwidth of the frequency interpolator when the multi-path delay is large. In addition, the controller may also change the coefficients of the frequency interpolator such that different word lengths are used for the coefficients as a function of the determined multi-path delay.
摘要翻译：数字视频广播 - 地面/手持（DVB-T / H）接收机包括控制器和频率插值器，用于通过频率插值来估计接收信号的信道状态信息（CSI）信息。控制器确定接收信号的多径延迟（Tmax），并根据确定的多径延迟调整频率插值器的带宽。例如，当多径延迟小时，当多路径延迟较大时，频率插值器的带宽被调整为小于频率插值器的带宽。另外，控制器还可以改变频率插值器的系数，使得不同的字长度被用作系数，作为确定的多径延迟的函数。

10. 发明授权

US08559490B2 Apparatus and method for removing common phase error in a DVB-T/H receiver 有权
标题翻译：用于去除DVB-T / H接收机中的共同相位误差的装置和方法
公开(公告)号：US08559490B2
公开(公告)日：2013-10-15
申请号：US12452411
申请日：2007-06-29
申请人： Peng Liu , Jilin Zou , Li Zou
发明人： Peng Liu , Jilin Zou , Li Zou
IPC分类号： H04B3/46 , H04B17/00 , H04Q1/20
CPC分类号： H04L27/2647 , H04L25/022 , H04L25/03159 , H04L27/3854
摘要： A receiver is a Digital Video Broadcasting-Terrestrial/Handheld (DVB-T/H) receiver. The DVB-T/H receiver comprises a phase error corrector and a channel estimation and equalization element. The phase error corrector rotates a signal in accordance with an estimate of a phase error, e.g., CPE, which is determined as a function of channel state information (CSI) provided by the channel estimation and equalization element.
摘要翻译：接收机是数字视频广播地面/手持（DVB-T / H）接收机。 DVB-T / H接收机包括相位误差校正器和信道估计和均衡元件。相位误差校正器根据由信道估计和均衡元件提供的信道状态信息（CSI）的函数确定的相位误差（例如CPE）的估计来旋转信号。

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