公开(公告)号：US08677222B2

公开(公告)日：2014-03-18

申请号：US13258449

申请日：2010-05-04

申请人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

发明人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

IPC分类号： H03M13/00

CPC分类号： H03M13/1515 ,  H03M13/3715 ,  H03M13/451 ,  H03M13/458 ,  H03M13/616

摘要： The embodiments of the invention disclose a method and a device for decoding an RS code, the method comprising: receiving bit reliability information of the RS code output by a channel, performing a hard decision on the bit reliability information to obtain a hard-decision result value sequence; determining a type of an error of the hard-decision result value sequence according to an initial check array corresponding to an encoding mode of the RS code; according to preset corresponding relationships between types of errors of the hard-decision result value sequence and error-correcting modes capable of correcting the errors, determining an error-correcting mode corresponding to the type of the error of the hard-decision result value sequence, and performing a bit error correction on the hard-decision result value sequence according to the determined error-correcting mode; outputting the hard-decision result value sequence after the bit error correction as a decoding result.

摘要翻译： 本发明的实施例公开了一种用于对RS码进行解码的方法和装置，该方法包括：接收由信道输出的RS码的比特可靠性信息，对比特可靠性信息进行硬判决以获得硬判决结果 价值序列 根据与RS码的编码模式相对应的初始检查阵列，确定硬判决结果值序列的错误的类型; 根据硬判决结果值序列的错误类型和能够校正错误的纠错模式之间的预设对应关系，确定与硬判定结果值序列的错误类型对应的纠错模式， 以及根据所确定的纠错模式对所述硬判定结果值序列进行位纠错; 在比特纠错之后输出硬判决结果值序列作为解码结果。

公开(公告)号：US08743911B2

公开(公告)日：2014-06-03

申请号：US13257920

申请日：2010-03-25

申请人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

发明人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

IPC分类号： H04J3/06

CPC分类号： H04L27/2656 ,  H04L27/2675

摘要： A synchronization method is disclosed, including: obtaining a synchronization symbol position {circumflex over (d)}0 of one time slot of an initial update period; taking Ntrack frames as an update period to adjust the synchronization symbol position, and the step of adjusting the synchronization symbol position including: obtaining a synchronization symbol position {circumflex over ({circumflex over (d)}k+1=dk+Ntrack{circumflex over (T)}k of a corresponding time slot of a (k+1)th update period according to a synchronization symbol position {circumflex over (d)}k of a corresponding time slot of a kth update period and an inter-frame sampling derivation estimation value {circumflex over (T)}k of said kth update period; obtaining synchronization symbol positions of other time slots in said kth update period according to the synchronization symbol position {circumflex over (d)}k of the corresponding time slot of the kth update period and the inter-frame sampling derivation estimation value {circumflex over (T)}k of said kth update period. A synchronization apparatus is also disclosed. The method and apparatus reduces synchronization calculation amount.

摘要翻译： 公开了一种同步方法，其包括：获得初始更新周期的一个时隙的同步符号位置{（d）} 0; 将Ntrack帧作为更新周期来调整同步符号位置，以及调整同步符号位置的步骤包括：获得同步符号位置{circumflex over（{circumflex over（d）} k + 1 = dk + Ntrack {circumflex 根据第k个更新周期的对应时隙的同步符号位置{（d）} k的第（k + 1）个更新周期的相应时隙，超过（T）} k个k 根据所述第k个更新周期的采样导出估计值{（f）（k）），根据相应时隙的同步符号位置{（d）} k获得所述第k个更新周期中的其他时隙的同步符号位置 以及所述第k个更新周期的帧间采样导出估计值（在（T）} k的转换，同时还公开了同步装置，该方法和装置减少了同步计算 nt。

公开(公告)号：US20110228884A1

公开(公告)日：2011-09-22

申请号：US13132782

申请日：2009-09-03

申请人： Ning Qiu ,  Qiang Li ,  Li Chen ,  Nanshan Cao ,  Tao Zhang ,  Yueyi You

发明人： Ning Qiu ,  Qiang Li ,  Li Chen ,  Nanshan Cao ,  Tao Zhang ,  Yueyi You

IPC分类号： H04B1/10

CPC分类号： H04L25/022 ,  H04L5/0048 ,  H04L25/0234 ,  H04L27/2647

摘要： The invention provides a method and device for filtering orthogonal frequency division multiplexing (OFDM) channel estimate result, to solve the problems in the prior art that for channel estimate result filtering the realization is complex or the performance is poor. By embodiments the following method is described: transforming time domain synchronous symbols received by the terminal equipment to frequency domain synchronous symbols; computing frequency domain impulse response sequences based on the frequency domain synchronous symbols; adjusting least mean square (LMS) adaptive filter coefficients based on the frequency domain impulse response sequences; obtaining coefficients of the data symbol channel estimate result frequency domain filter based on the coefficients obtained from said adjusting; filtering the OFDM channel estimate result by using the data symbol channel estimate result frequency domain filter. The corresponding device is disclosed by the embodiments. There is less computation, simpler realization and better filtering performance provided with the OFDM channel estimate result frequency domain filter obtained from the technical solution of the present invention.

摘要翻译： 本发明提供了一种用于过滤正交频分复用（OFDM）信道估计结果的方法和装置，以解决现有技术中对于信道估计结果过滤的复杂或性能差的问题。 通过实施例描述了以下方法：将由终端设备接收的时域同步符号转换为频域同步符号; 基于频域同步符号计算频域脉冲响应序列; 基于频域脉冲响应序列调整最小均方（LMS）自适应滤波器系数; 基于从所述调整获得的系数，获得数据符号信道估计结果频域滤波器的系数; 通过使用数据符号信道估计结果频域滤波器对OFDM信道估计结果进行滤波。 相应的装置由实施例公开。 与从本发明的技术方案获得的OFDM信道估计结果频域滤波器相比，计算量少，实现更简单，滤波性能更好。

公开(公告)号：US20120166915A1

公开(公告)日：2012-06-28

申请号：US13258449

申请日：2010-05-04

申请人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

发明人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

IPC分类号： H03M13/07 ,  G06F11/10

CPC分类号： H03M13/1515 ,  H03M13/3715 ,  H03M13/451 ,  H03M13/458 ,  H03M13/616

摘要： The embodiments of the invention disclose a method and a device for decoding an RS code, the method comprising: receiving bit reliability information of the RS code output by a channel, performing a hard decision on the bit reliability information to obtain a hard-decision result value sequence; determining a type of an error of the hard-decision result value sequence according to an initial check array corresponding to an encoding mode of the RS code; according to preset corresponding relationships between types of errors of the hard-decision result value sequence and error-correcting modes capable of correcting the errors, determining an error-correcting mode corresponding to the type of the error of the hard-decision result value sequence, and performing a bit error correction on the hard-decision result value sequence according to the determined error-correcting mode; outputting the hard-decision result value sequence after the bit error correction as a decoding result.

摘要翻译： 本发明的实施例公开了一种用于对RS码进行解码的方法和装置，该方法包括：接收由信道输出的RS码的比特可靠性信息，对比特可靠性信息进行硬判决以获得硬判决结果 价值序列 根据与RS码的编码模式相对应的初始检查阵列，确定硬判决结果值序列的错误的类型; 根据硬判决结果值序列的错误类型和能够校正错误的纠错模式之间的预设对应关系，确定与硬判决结果值序列的错误类型对应的纠错模式， 以及根据所确定的纠错模式对所述硬判定结果值序列进行位纠错; 在比特纠错之后输出硬判决结果值序列作为解码结果。

公开(公告)号：US20120099608A1

公开(公告)日：2012-04-26

申请号：US13257920

申请日：2010-03-25

申请人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

发明人： Yueyi You ,  Qiang Li ,  Ning Qiu ,  Nanshan Cao ,  Tao Zhang

IPC分类号： H04J3/06

CPC分类号： H04L27/2656 ,  H04L27/2675

摘要： A synchronization method is disclosed, including: obtaining a synchronization symbol position {circumflex over (d)}0 of one time slot of an initial update period; taking Ntrack frames as an update period to adjust the synchronization symbol position, and the step of adjusting the synchronization symbol position including: obtaining a synchronization symbol position {circumflex over ({circumflex over (d)}k+1=dk+Ntrack{circumflex over (T)}k of a corresponding time slot of a (k+1)th update period according to a synchronization symbol position {circumflex over (d)}k of a corresponding time slot of a kth update period and an inter-frame sampling derivation estimation value {circumflex over (T)}k of said kth update period; obtaining synchronization symbol positions of other time slots in said kth update period according to the synchronization symbol position {circumflex over (d)}k of the corresponding time slot of the kth update period and the inter-frame sampling derivation estimation value {circumflex over (T)}k of said kth update period. A synchronization apparatus is also disclosed. The method and apparatus reduces synchronization calculation amount.

摘要翻译： 公开了一种同步方法，其包括：获得初始更新周期的一个时隙的同步符号位置{（d）} 0; 将Ntrack帧作为更新周期来调整同步符号位置，以及调整同步符号位置的步骤包括：获得同步符号位置{circumflex over（{circumflex over（d）} k + 1 = dk + Ntrack {circumflex 根据第k个更新周期的对应时隙的同步符号位置{（d）} k的第（k + 1）个更新周期的相应时隙，超过（T）} k个k 根据所述第k个更新周期的采样导出估计值{（f）（k）），根据相应时隙的同步符号位置{（d）} k获得所述第k个更新周期中的其他时隙的同步符号位置 以及所述第k个更新周期的帧间采样导出估计值（在（T）} k的转换，同时还公开了同步装置，该方法和装置减少了同步计算 nt。

公开(公告)号：US20120114031A1

公开(公告)日：2012-05-10

申请号：US13259038

申请日：2010-04-23

申请人： Qiang Li ,  Ning Qiu ,  Nanshan Cao

发明人： Qiang Li ,  Ning Qiu ,  Nanshan Cao

IPC分类号： H04L27/06 ,  H04L27/01

CPC分类号： H04L25/03159 ,  H04L25/0216 ,  H04L25/022 ,  H04L27/2607 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2672 ,  H04L27/2676 ,  H04L27/2695 ,  H04L2025/03414

摘要： The present invention discloses an OFDM signal demodulation method and device thereof. The method comprises: adding a pre-obtained timing offset estimation value of an OFDM signal demodulation device to the initial position of an OFDM symbol of a received signal to obtain a window deviation value of the OFDM symbol; adding a channel time delay extension to the window deviation value to obtain a combined prefix initial position; calculating the combined OFDM signal value starting from the prefix initial position; processing the Fast Fourier Transform (FFT) for the combined OFDM signal value to obtain a frequency domain data subcarrier signal; calculating the frequency domain original channel estimation value processing the channel estimation based on the original channel estimation value phase modification of the OFDM symbol according to the channel estimation compensation indication value; and processing equalization and detection for the frequency domain data subcarrier signal according to the channel estimation result. The present invention uses the cycle prefix of the received signals to promote the demodulation performance of the OFDM signal demodulation device.

摘要翻译： 本发明公开了一种OFDM信号解调方法及其装置。 该方法包括：将预先获得的OFDM信号解调装置的定时偏移估计值加到接收信号的OFDM符号的初始位置，以获得OFDM符号的窗口偏移值; 向窗口偏差值增加一个通道时间延迟以获得组合的前缀初始位置; 从前缀初始位置开始计算组合的OFDM信号值; 处理用于组合的OFDM信号值的快速傅立叶变换（FFT）以获得频域数据子载波信号; 根据信道估计补偿指示值，根据OFDM符号的原始信道估计值相位修正来计算频域原始信道估计值处理信道估计值; 以及根据信道估计结果处理频域数据子载波信号的均衡和检测。 本发明使用接收信号的周期前缀来促进OFDM信号解调装置的解调性能。

公开(公告)号：US08582634B2

公开(公告)日：2013-11-12

申请号：US13259038

申请日：2010-04-23

申请人： Qiang Li ,  Ning Qiu ,  Nanshan Cao

发明人： Qiang Li ,  Ning Qiu ,  Nanshan Cao

IPC分类号： H04L27/06 ,  H04L27/01

CPC分类号： H04L25/03159 ,  H04L25/0216 ,  H04L25/022 ,  H04L27/2607 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2672 ,  H04L27/2676 ,  H04L27/2695 ,  H04L2025/03414

摘要： The present invention discloses an OFDM signal demodulation method and device thereof. The method comprises: adding a pre-obtained timing offset estimation value of an OFDM signal demodulation device to the initial position of an OFDM symbol of a received signal to obtain a window deviation value of the OFDM symbol; adding a channel time delay extension to the window deviation value to obtain a combined prefix initial position; calculating the combined OFDM signal value starting from the prefix initial position; processing the Fast Fourier Transform (FFT) for the combined OFDM signal value to obtain a frequency domain data subcarrier signal; calculating the frequency domain original channel estimation value processing the channel estimation based on the original channel estimation value phase modification of the OFDM symbol according to the channel estimation compensation indication value; and processing equalization and detection for the frequency domain data subcarrier signal according to the channel estimation result. The present invention uses the cycle prefix of the received signals to promote the demodulation performance of the OFDM signal demodulation device.

摘要翻译： 本发明公开了一种OFDM信号解调方法及其装置。 该方法包括：将预先获得的OFDM信号解调装置的定时偏移估计值加到接收信号的OFDM符号的初始位置，以获得OFDM符号的窗口偏移值; 向窗口偏差值增加一个通道时间延迟以获得组合的前缀初始位置; 从前缀初始位置开始计算组合的OFDM信号值; 处理用于组合的OFDM信号值的快速傅立叶变换（FFT）以获得频域数据子载波信号; 根据信道估计补偿指示值，根据OFDM符号的原始信道估计值相位修正来计算频域原始信道估计值处理信道估计值; 以及根据信道估计结果处理频域数据子载波信号的均衡和检测。 本发明使用接收信号的周期前缀来促进OFDM信号解调装置的解调性能。

公开(公告)号：US20130116957A1

公开(公告)日：2013-05-09

申请号：US13810813

申请日：2011-02-16

申请人： Ning Qiu ,  Qiang Li ,  Wenqi Zeng ,  Tiankun Yu ,  Zhong Wei Liu ,  Yannan Xing ,  Lihong Liang ,  Liwen Li ,  Feng Lin ,  Jintao Chu ,  Xinhua Chen

发明人： Ning Qiu ,  Qiang Li ,  Wenqi Zeng ,  Tiankun Yu ,  Zhong Wei Liu ,  Yannan Xing ,  Lihong Liang ,  Liwen Li ,  Feng Lin ,  Jintao Chu ,  Xinhua Chen

IPC分类号： G01R23/02 ,  G06F17/11

CPC分类号： G01R23/02 ,  G06F17/11 ,  H04L27/266 ,  H04L27/2679

摘要： The disclosure discloses a fine frequency offset estimation method and apparatus. The method comprises: calculating a first accumulated estimation value corresponding to a first multiframe state according to a phase relevant value of a subframe and a phase of a subframe in the first multiframe state; calculating a second accumulated estimation value corresponding to a second multiframe state according to the phase relevant value of the subframe and a phase of a subframe in the second multiframe state; determining that a decision result of a multiframe state is the first multiframe state or the second multiframe state according to the first accumulated estimation value and the second accumulated estimation value; and performing a fine frequency offset estimation according to the decision result of the multiframe state. The apparatus disclosed in the disclosure is less coupled with other modules, has excellent performance in various environments, and realizes the unbiased estimation of timing offset.

摘要翻译： 本公开公开了一种精细的频率偏移估计方法和装置。 该方法包括：根据第一多帧状态的子帧的相位相关值和子帧的相位，计算与第一复帧状态对应的第一累积估计值; 根据子帧的相位相关值和第二多帧状态的子帧的相位，计算与第二多帧状态对应的第二累积估计值; 根据第一累积估计值和第二累积估计值，确定多帧状态的判定结果是第一多帧状态或第二多帧状态; 以及根据多帧状态的判定结果进行精细的频率偏移估计。 本公开中公开的装置与其他模块耦合较少，在各种环境中具有优异的性能，并且实现了对时间偏移的无偏估计。

公开(公告)号：US08750256B2

公开(公告)日：2014-06-10

申请号：US13258079

申请日：2010-03-31

申请人： Ning Qiu ,  Qiang Li ,  Haifeng Ni ,  Wenqi Zeng ,  Xuehong Tian ,  Jiwen Wang ,  Jian Cheng ,  Yu Chen ,  Min Bi ,  Xiaolong Ran ,  Fanping Du ,  Lihong Liang

发明人： Ning Qiu ,  Qiang Li ,  Haifeng Ni ,  Wenqi Zeng ,  Xuehong Tian ,  Jiwen Wang ,  Jian Cheng ,  Yu Chen ,  Min Bi ,  Xiaolong Ran ,  Fanping Du ,  Lihong Liang

IPC分类号： H04B7/216 ,  H04L1/00

CPC分类号： H04L1/0068 ,  H04L1/0052

摘要： A method for configuring a service and a method and apparatus for rate matching in a TD-SCDMA system, this method for configuring the service includes: taking that a check bit puncturing ratio should be more than 7i+a or less than 7i−a as a newly added constraint condition, and the check bit puncturing ratios of each configured service being outside a range of [7i+a, 7i−a], the method for rate matching includes: when puncturing each path of check bits of the current data block, if a difference between a position Pk of kth reserved check bit calculated according to a method defined by the service and a previously determined position NPk−1 of k−1th reserved check bit is a positive integral multiple of 7, determining a position NPk of kth reserved check bit as Pk plus 1 or Pk minus 1, and Pk plus 1 and Pk minus 1 requiring carrying out alternately.

摘要翻译： 一种用于配置服务的方法以及用于TD-SCDMA系统中的速率匹配的方法和装置，所述用于配置服务的方法包括：将校验位打孔比应大于7i + a或小于7i-a作为 新添加的约束条件，并且每个配置的服务的检查比特删截比率在[7i + a，7i-a]的范围之外，用于速率匹配的方法包括：当对当前数据块的校验位的每个路径 如果根据由服务定义的方法计算的第k个保留校验位的位置Pk与第k-1个保留校验位的预先确定的位置NPk-1之间的差是7的正整数倍，则确定位置NPk 第k个保留校验位为Pk加1或Pk减1，Pk加1和Pk减1需要交替执行。

公开(公告)号：US20120082053A1

公开(公告)日：2012-04-05

申请号：US13258079

申请日：2010-03-31

申请人： Ning Qiu ,  Qiang Li ,  Haifeng Ni ,  Wenqi Zeng ,  Xuehong Tian ,  Jiwen Wang ,  Jian Cheng ,  Yu Chen ,  Min Bi ,  Xiaolong Ran ,  Fanping Du ,  Lihong Liang

发明人： Ning Qiu ,  Qiang Li ,  Haifeng Ni ,  Wenqi Zeng ,  Xuehong Tian ,  Jiwen Wang ,  Jian Cheng ,  Yu Chen ,  Min Bi ,  Xiaolong Ran ,  Fanping Du ,  Lihong Liang

IPC分类号： H04W28/04

CPC分类号： H04L1/0068 ,  H04L1/0052

摘要： A method for configuring a service and a method and apparatus for rate matching in a TD-SCDMA system, this method for configuring the service includes: taking that a check bit puncturing ratio should be more than 7i+a or less than 7i−a as a newly added constraint condition, and the check bit puncturing ratios of each configured service being outside a range of [7i+a, 7i−a], the method for rate matching includes: when puncturing each path of check bits of the current data block, if a difference between a position Pk of kth reserved check bit calculated according to a method defined by the service and a previously determined position NPk-1 of k−1th reserved check bit is a positive integral multiple of 7, determining a position NPk of kth reserved check bit as Pk plus 1 or Pk minus 1, and Pk plus 1 and Pk minus 1 requiring carrying out alternately.

摘要翻译： 一种用于配置服务的方法以及用于TD-SCDMA系统中的速率匹配的方法和装置，所述用于配置服务的方法包括：将校验位打孔比应大于7i + a或小于7i-a作为 新添加的约束条件，并且每个配置的服务的检查比特删截比率在[7i + a，7i-a]的范围之外，用于速率匹配的方法包括：当对当前数据块的校验位的每个路径 如果根据由服务定义的方法计算的第k个保留校验位的位置Pk与第k-1个保留校验位的预先确定的位置NPk-1之间的差是7的正整数倍，则确定位置NPk 第k个保留校验位为Pk加1或Pk减1，Pk加1和Pk减1需要交替执行。