公开(公告)号：US08532027B2

公开(公告)日：2013-09-10

申请号：US12763482

申请日：2010-04-20

申请人： Wei Zha ,  Amir Soltanian ,  Yuelun Guo ,  Wei Lu

发明人： Wei Zha ,  Amir Soltanian ,  Yuelun Guo ,  Wei Lu

IPC分类号： H04W4/00

摘要： A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a one secondary synchronization signal (SSS). The processor determines a correlation “P” of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time “t” of time increments k of the signal sample and a correlation “S” of a second symbol transmitted in the a SSS to a second known symbol at each time t-.5/7 msecs. The processor receives a candidate phase rotation of θi from a set of “i” candidates and determines a correlation “Cmax” over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by θi. The processor determines the cell identifier from the first and second known symbols that produced S and P of C max and an estimation of the frequency offset between a transmitter of the signal sample and a receiver of the signal sample.

公开(公告)号：US08588136B2

公开(公告)日：2013-11-19

申请号：US12763482

申请日：2010-04-20

申请人： Wei Zha ,  Amir Soltanian ,  Yuelun Guo ,  Wei Lu

发明人： Wei Zha ,  Amir Soltanian ,  Yuelun Guo ,  Wei Lu

IPC分类号： H04W4/00

CPC分类号： H04J11/0069 ,  H04L5/0007 ,  H04L27/0014 ,  H04L27/2657 ,  H04L27/2675 ,  H04L2027/0046

摘要： A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a one secondary synchronization signal (SSS). The processor determines a correlation “P” of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time “t” of time increments k of the signal sample and a correlation “S” of a second symbol transmitted in the a SSS to a second known symbol at each time t-.5/7 msecs. The processor receives a candidate phase rotation of θi from a set of “i” candidates and determines a correlation “Cmax” over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by θi. The processor determines the cell identifier from the first and second known symbols that produced S and P of C max and an estimation of the frequency offset between a transmitter of the signal sample and a receiver of the signal sample.

摘要翻译： 一种用于在正交频分多址（OFDMA）下行链路信道中的载波频率偏移下的SSS检测的系统和方法。 处理器接收包括主同步信号（PSS）上的传输和一个次同步信号（SSS）上的传输的信号样本。 处理器在信号样本的时间增量k的每个时间“t”处确定在信号样本的PSS中发送的第一符号与第一已知符号的相关“P”，并且发送的第二符号的相关“S” 在SSS到每秒t-.5 / 7毫秒的第二已知符号。 处理器从一组“i”个候选者接收该台的候选相位旋转，并且确定在表示S和P的组合相关的最大振幅的时间增量k之间的相关“Cmax”，并且由P旋转。 处理器根据产生C max的S和P的第一和第二已知符号以及信号样本的发射机与信号样本的接收机之间的频率偏移的估计来确定小区标识符。

公开(公告)号：US20110255394A1

公开(公告)日：2011-10-20

申请号：US12763482

申请日：2010-04-20

申请人： Wei Zha ,  Amir Soltanian ,  Yuelun Guo ,  Wei Lu

发明人： Wei Zha ,  Amir Soltanian ,  Yuelun Guo ,  Wei Lu

IPC分类号： H04J11/00 ,  H04K1/10

CPC分类号： H04J11/0069 ,  H04L5/0007 ,  H04L27/0014 ,  H04L27/2657 ,  H04L27/2675 ,  H04L2027/0046

摘要： A system and method for SSS detection under carrier frequency offset in an orthogonal frequency-division multiple access (OFDMA) downlink channel. A processor receives a signal sample that includes a transmission on a primary synchronization signal (PSS) and a transmission on a one secondary synchronization signal (SSS). The processor determines a correlation “P” of a first symbol transmitted in the PSS of the signal sample to a first known symbol at each time “t” of time increments k of the signal sample and a correlation “S” of a second symbol transmitted in the a SSS to a second known symbol at each time t-.5/7msecs. The processor receives a candidate phase rotation of θi from a set of “i” candidates and determines a correlation “Cmax” over the time increments k representing a maximum amplitude of a combined correlation of S and P, with P rotated by θi. The processor determines the cell identifier from the first and second known symbols that produced S and P of C max and an estimation of the frequency offset between a transmitter of the signal sample and a receiver of the signal sample.

摘要翻译： 一种用于在正交频分多址（OFDMA）下行链路信道中的载波频率偏移下的SSS检测的系统和方法。 处理器接收包括主同步信号（PSS）上的传输和一个次同步信号（SSS）上的传输的信号样本。 处理器在信号样本的时间增量k的每个时间“t”处确定在信号样本的PSS中发送的第一符号与第一已知符号的相关“P”，并且发送的第二符号的相关“S” 在SSS到第二个已知的符号，每次t-.5 / 7msecs。 处理器从一组“i”候选者接收候选相位旋转; i从一组“i”个候选中接收相对“Cmax”，并且确定S表示S和P的组合相关的最大振幅的时间增量k与P旋转的相关“Cmax”。 一世。 处理器根据产生C max的S和P的第一和第二已知符号以及信号样本的发射机与信号样本的接收机之间的频率偏移的估计来确定小区标识符。

公开(公告)号：US20120214504A1

公开(公告)日：2012-08-23

申请号：US13030332

申请日：2011-02-18

申请人： Wei Zha ,  Amir Soltanian ,  Tony Kobrinetz

发明人： Wei Zha ,  Amir Soltanian ,  Tony Kobrinetz

IPC分类号： H04W24/00 ,  H04W64/00

CPC分类号： H04W24/08 ,  H04W24/10 ,  H04W88/02

摘要： Systems and methods for acquiring wireless network performance data comprising a user equipment accessible via a wireless network, the user equipment comprising; a receiver, a transmitter, a first processor configured with software executable instructions to cause the user equipment to perform operations comprising; receiving a data acquisition signal via the receiver, sampling a wireless network signal received at the user equipment in response to receiving the data acquisition signal, generating acquired network data, and transmitting the acquired network data via the transmitter, a server accessible via the wireless network, the server comprising, a second processor configured with software executable instructions to cause the server to perform operations comprising; transmitting the data acquisition signal, receiving the acquired network data; and generating network performance data using the acquired network data.

摘要翻译： 用于获取无线网络性能数据的系统和方法，包括可通过无线网络访问的用户设备，所述用户设备包括： 接收机，发射机，配置有软件可执行指令的第一处理器，以使用户设备执行包括的操作; 经由接收器接收数据采集信号，响应于接收到数据采集信号，采集在用户设备接收的无线网络信号，产生获取的网络数据，以及经由发送器发送所获取的网络数据，经由无线网络访问的服务器 所述服务器包括：配置有软件可执行指令的第二处理器，用于使所述服务器执行包括的操作; 发送数据采集信号，接收获取的网络数据; 以及使用获取的网络数据生成网络性能数据。

公开(公告)号：US08655348B2

公开(公告)日：2014-02-18

申请号：US13030332

申请日：2011-02-18

申请人： Wei Zha ,  Amir Soltanian ,  Tony Kobrinetz

发明人： Wei Zha ,  Amir Soltanian ,  Tony Kobrinetz

IPC分类号： H04W24/00

CPC分类号： H04W24/08 ,  H04W24/10 ,  H04W88/02

摘要： Systems and methods for acquiring wireless network performance data comprising a user equipment accessible via a wireless network, the user equipment comprising; a receiver, a transmitter, a first processor configured with software executable instructions to cause the user equipment to perform operations comprising; receiving a data acquisition signal via the receiver, sampling a wireless network signal received at the user equipment in response to receiving the data acquisition signal, generating acquired network data, and transmitting the acquired network data via the transmitter, a server accessible via the wireless network, the server comprising, a second processor configured with software executable instructions to cause the server to perform operations comprising; transmitting the data acquisition signal, receiving the acquired network data; and generating network performance data using the acquired network data.

摘要翻译： 用于获取无线网络性能数据的系统和方法，包括可通过无线网络访问的用户设备，所述用户设备包括： 接收机，发射机，配置有软件可执行指令的第一处理器，以使用户设备执行包括的操作; 经由接收器接收数据采集信号，响应于接收到数据采集信号，采集在用户设备接收的无线网络信号，产生获取的网络数据，以及经由发送器发送所获取的网络数据，经由无线网络访问的服务器 所述服务器包括：配置有软件可执行指令的第二处理器，用于使所述服务器执行包括的操作; 发送数据采集信号，接收获取的网络数据; 以及使用获取的网络数据生成网络性能数据。

公开(公告)号：US20060200346A1

公开(公告)日：2006-09-07

申请号：US11364251

申请日：2006-02-28

申请人： Wai-Yip Chan ,  Wei Zha ,  Mohamed El-Hennawey

发明人： Wai-Yip Chan ,  Wei Zha ,  Mohamed El-Hennawey

IPC分类号： G10L15/20

CPC分类号： G10L25/69

摘要： Auditory processing is used in conjunction with cognitive mapping to produce an objective measurement of speech quality that approximates a subjective measurement such as MOS. In order to generate a data model for measuring speech quality from a clean speech signal and a degraded speech signal, the clean speech signal is subjected to auditory processing to produce a subband decomposition of the clean speech signal; the degraded speech signal is subjected to auditory processing to produce a subband decomposition of the degraded speech signal; and cognitive mapping is performed based on the clean speech signal, the subband decomposition of the clean speech signal, and the subband decomposition of the degraded speech signal. Various statistical analysis techniques, such as MARS and CART, may be employed, either alone or in combination, to perform data mining for cognitive mapping. From the large number of features extracted from the distortion surface, MARS is employed to find a smaller subset of features to form the speech quality estimator. The subset of feature variables, together with the particular manner of combining them, are jointly optimized to produce a statistically consistent estimate (data model) of subjective opinion scores such as MOS.

摘要翻译： 听觉处理与认知映射结合使用以产生近似诸如MOS的主观测量的语音质量的客观测量。 为了从干净的语音信号和劣化的语音信号生成用于测量语音质量的数据模型，对干净的语音信号进行听觉处理，以产生干净的语音信号的子带分解; 对退化语音信号进行听觉处理，以产生劣化语音信号的子带分解; 并且基于干净的语音信号，干净的语音信号的子带分解和劣化语音信号的子带分解来执行认知映射。 可以单独地或组合地使用各种统计分析技术，例如MARS和CART来进行认知映射的数据挖掘。 从从失真表面提取的大量特征中，采用MARS来找到较小的特征子集以形成语音质量估计器。 特征变量的子集以及组合它们的特定方式被共同优化，以产生统计学上一致的主观意见评估（数据模型），如MOS。