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    • 3. 发明授权
    • Method and apparatus for estimating time of arrival
    • 估计到达时间的方法和装置
    • US08437698B2
    • 2013-05-07
    • US12714249
    • 2010-02-26
    • Gengshi WuFeng LiNian PengShufan HuangJing Yang
    • Gengshi WuFeng LiNian PengShufan HuangJing Yang
    • H04B1/00
    • G01S5/0221G01S5/0215H04W56/0075H04W56/0085
    • Method and apparatus are provided for estimating Time of Arrival (“TOA”). The method includes: performing channel estimation according to a Normal Burst (“NB”) free of interference and a local training sequence and generating a channel estimate, performing TOA estimation according to the channel estimate, and adjusting a synchronization position of the current NB according to a TOA estimation result. Interference to signals is cancelled before the TOA estimation, thus overcoming energy estimate deviation arising from interference in a strongly interfering radio environment, as occurs in the prior art, and preventing the impact on the TOA estimation. The disclosed methods and apparatus provide for more accurate energy estimates in a strongly interfering radio environment. The technical solution under the present invention does not require adjustment of the method of adjusting the search window.
    • 提供了估计到达时间(“TOA”)的方法和装置。 该方法包括:根据无干扰的正常突发(“NB”)和本地训练序列进行信道估计,并产生信道估计,根据信道估计执行TOA估计,并根据信道估计调整当前NB的同步位置 到TOA估计结果。 在TOA估计之前,对信号的干扰被消除,从而克服由于在现有技术中发生的强干扰无线电环境中的干扰引起的能量估计偏差,并且防止对TOA估计的影响。 所公开的方法和装置在强干扰无线电环境中提供更准确的能量估计。 本发明的技术方案不需要调整搜索窗口的调整方法。
    • 4. 发明授权
    • Channel estimating method and device
    • 信道估计方法及装置
    • US08711914B2
    • 2014-04-29
    • US13463452
    • 2012-05-03
    • Gengshi WuMeng HuaChunling ZhangShurong JiaoXiuqin Peng
    • Gengshi WuMeng HuaChunling ZhangShurong JiaoXiuqin Peng
    • H04B3/46
    • H04L27/3863H04B1/7113H04L25/0216H04L25/0234
    • A channel estimating method and device are provided. The method includes: performing multi-path searching on a pilot channel, and performing interpolation on a channel estimation value at a radial position of the multi-path searching (101); performing raised cosine de-convolution on the channel estimation value that undergoes the interpolation (102); acquiring the channel estimation value at each radial position in the pilot channel according to the channel estimation value that undergoes the raised cosine de-convolution and a sample deviation acquired by performing the multi-path searching (103). The channel estimating method and device eliminate the sample deviation of the channel estimation value, improve the demodulation performance, and evidently reduce the operation workload.
    • 提供了一种信道估计方法和装置。 该方法包括:在导频信道上进行多路径搜索,并对多路径搜索的径向位置处的信道估计值进行内插(101); 对经历内插的信道估计值执行升余弦去卷积(102); 根据经历升余弦去卷积的信道估计值和通过执行多路径搜索获得的采样偏差,获取导频信道中每个径向位置处的信道估计值(103)。 信道估计方法和设备消除了信道估计值的采样偏差,提高了解调性能,显着降低了操作工作量。
    • 5. 发明申请
    • CHANNEL ESTIMATING METHOD AND DEVICE
    • 信道估计方法和设备
    • US20120213264A1
    • 2012-08-23
    • US13463452
    • 2012-05-03
    • Gengshi WuMeng HuaChunling ZhangShurong JiaoXiuqin Peng
    • Gengshi WuMeng HuaChunling ZhangShurong JiaoXiuqin Peng
    • H04B3/46
    • H04L27/3863H04B1/7113H04L25/0216H04L25/0234
    • A channel estimating method and device are provided. The method includes: performing multi-path searching on a pilot channel, and performing interpolation on a channel estimation value at a radial position of the multi-path searching (101); performing raised cosine de-convolution on the channel estimation value that undergoes the interpolation (102); acquiring the channel estimation value at each radial position in the pilot channel according to the channel estimation value that undergoes the raised cosine de-convolution and a sample deviation acquired by performing the multi-path searching (103). The channel estimating method and device eliminate the sample deviation of the channel estimation value, improve the demodulation performance, and evidently reduce the operation workload.
    • 提供了一种信道估计方法和装置。 该方法包括:在导频信道上进行多路径搜索,并对多路径搜索的径向位置处的信道估计值进行内插(101); 对经历内插的信道估计值执行升余弦去卷积(102); 根据经历升余弦去卷积的信道估计值和通过执行多路径搜索获得的采样偏差,获取导频信道中每个径向位置处的信道估计值(103)。 信道估计方法和设备消除了信道估计值的采样偏差,提高了解调性能,显着降低了操作工作量。
    • 6. 发明申请
    • METHOD FOR DETECTION USING A YI ALGORITHM, AND YI DETECTOR
    • 使用YI算法进行检测的方法和YI检测器
    • US20120123730A1
    • 2012-05-17
    • US13360257
    • 2012-01-27
    • Kai ZongDan ZhaoMeng HuaGengshi WuZhiqun Chen
    • Kai ZongDan ZhaoMeng HuaGengshi WuZhiqun Chen
    • G06F15/00
    • H04L25/03178H03M13/3738H03M13/41
    • In the field of communications technologies, embodiments of the present invention provide a method for detection using a YI algorithm and a YI detector, so as to solve the technical problem of poor detection performance caused by signal environment variation in the prior art. In the embodiment of the present invention, parameters are obtained according to a received signal; a level threshold at each level starting from a level corresponding to a Tailbits value is obtained according to the parameters, and validity of at least one node at the level is determined according to the level threshold, where the level is the same as a level of the level threshold; and a detection identifier is output according to the validity. The embodiment of the present invention is mainly applied to a scenario of detection using thresholds.
    • 在通信技术领域中,本发明的实施例提供了一种使用YI算法和YI检测器进行检测的方法,以解决现有技术中信号环境变化引起的检测性能差的技术问题。 在本发明的实施例中,根据接收信号获得参数; 根据参数获得从与Tailbits值对应的级别开始的每个级别的级别阈值,并且根据级别阈值确定该级别的至少一个节点的有效性,其中该级别与 水平阈值; 并根据有效性输出检测标识符。 本发明的实施例主要应用于使用阈值的检测场景。
    • 7. 发明授权
    • Method for detection using a YI algorithm, and YI detector
    • 使用YI算法进行检测的方法,以及YI检测器
    • US09172564B2
    • 2015-10-27
    • US13360257
    • 2012-01-27
    • Kai ZongDan ZhaoMeng HuaGengshi WuZhiqun Chen
    • Kai ZongDan ZhaoMeng HuaGengshi WuZhiqun Chen
    • H04L25/03H03M13/37H03M13/41
    • H04L25/03178H03M13/3738H03M13/41
    • In the field of communications technologies, embodiments of the present invention provide a method for detection using a YI algorithm and a YI detector, so as to solve the technical problem of poor detection performance caused by signal environment variation in the prior art. In the embodiment of the present invention, parameters are obtained according to a received signal; a level threshold at each level starting from a level corresponding to a Tailbits value is obtained according to the parameters, and validity of at least one node at the level is determined according to the level threshold, where the level is the same as a level of the level threshold; and a detection identifier is output according to the validity. The embodiment of the present invention is mainly applied to a scenario of detection using thresholds.
    • 在通信技术领域中,本发明的实施例提供了一种使用YI算法和YI检测器进行检测的方法,以解决现有技术中信号环境变化引起的检测性能差的技术问题。 在本发明的实施例中,根据接收信号获得参数; 根据参数获得从与Tailbits值相对应的级别开始的每个级别的级别阈值,并且根据级别阈值确定该级别的至少一个节点的有效性,其中该级别与 水平阈值; 并根据有效性输出检测标识符。 本发明的实施例主要应用于使用阈值的检测场景。
    • 9. 发明授权
    • Method and system for removing radio frequency direct current offset in signal
    • 消除信号中射频直流偏移的方法和系统
    • US07881687B2
    • 2011-02-01
    • US11848001
    • 2007-08-30
    • Jing YangYu LiuGengshi Wu
    • Jing YangYu LiuGengshi Wu
    • H04B1/10H04B17/00
    • H04B1/30H04L25/063
    • Embodiments of the present invention provide a method and a system for removing a Radio Frequency (RF) Direct Current (DC) offset in a signal. The method includes: subtracting a canceling DC from a signal carrying an RF DC offset and generating an RF DC offset residual; outputting the signal when the RF DC offset residual in the signal is zero; adjusting the canceling DC according to the RF DC offset residual in the signal if the RF DC offset residual is not zero. The system includes a receiver, an RF DC offset canceling unit, a determining unit, a canceling DC adjusting unit, and an output unit. With embodiments of the present invention, the RF DC offset in the signal may be effectively removed.
    • 本发明的实施例提供一种用于去除信号中的射频(RF)直流(DC)偏移的方法和系统。 该方法包括:从承载RF DC偏移的信号中减去消除DC并产生RF DC偏移残差; 当信号中的RF DC偏移残差为零时,输出信号; 如果RF DC偏移残差不为零,则根据信号中的RF DC偏移残差调整抵消DC。 该系统包括接收器,RF DC偏移消除单元,确定单元,消除DC调整单元和输出单元。 利用本发明的实施例,可以有效地消除信号中的RF DC偏移。
    • 10. 发明授权
    • Method and apparatus for eliminating frequency-domain interference signals
    • 消除频域干扰信号的方法和装置
    • US08437412B2
    • 2013-05-07
    • US12636333
    • 2009-12-11
    • Meng HuaYan YangJing YangGengshi Wu
    • Meng HuaYan YangJing YangGengshi Wu
    • H04L27/28H04L27/06H04B1/10
    • H04B1/7107H04B1/7102
    • The present invention discloses a method and an apparatus for eliminating frequency-domain interference signals, and relates to communication technologies. The method includes: multiplying a frequency-domain channel estimation value by a frequency-domain interference signal to obtain a frequency-domain received interference signal; and subtracting the frequency-domain received interference signal from the frequency-domain received signal to obtain the frequency-domain received signal free of interference. The apparatus includes a multiplying module and a subtracting module. A frequency-domain equalizer includes an interference signal obtaining module and an interference signal eliminating module. The technical solution provided herein eliminates interference signals in the frequency domain, and saves the calculation load in contrast with elimination of time-domain interference signals.
    • 本发明公开了一种消除频域干扰信号的方法和装置,涉及通信技术。 该方法包括:将频域信道估计值乘以频域干扰信号以获得频域接收干扰信号; 并从频域接收信号中减去频域接收干扰信号,得到无干扰的频域接收信号。 该装置包括乘法模块和减法模块。 频域均衡器包括干扰信号获取模块和干扰信号消除模块。 这里提供的技术方案消除了频域中的干扰信号,并且与消除时域干扰信号相反,节省了计算负荷。