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1. 发明申请

US20080130607A1 Method and System for Multimode DC Offset Compensation 审中-公开
标题翻译：多模直流偏移补偿方法与系统
公开(公告)号：US20080130607A1
公开(公告)日：2008-06-05
申请号：US11565562
申请日：2006-11-30
申请人： Junqiang Li , Nelson Sollenberger , Li Fung Chang
发明人： Junqiang Li , Nelson Sollenberger , Li Fung Chang
IPC分类号： H04B7/216 , H04B1/12 , H04L25/06
CPC分类号： H03D3/008
摘要： Aspects of a method and system for multimode DC offset compensation are presented. Aspects of the system may include accumulating a selected number of signal samples, determining an average of the accumulated signal samples, and keeping a running total of the average for use feedback signal generation. The signal samples may be, for example, samples of WCDMA signals. By keeping track of the signal offset error, the signal offset error, or residual DC, may be determined. For example the signal offset error may comprise a DC component and/or a sinusoidal component. The number of signal samples to accumulate for the average may be based on the signal offset error. For example, a threshold may be determined as part of design of an embodiment of the invention.
摘要翻译：提出了一种用于多模直流偏移补偿的方法和系统。系统的方面可以包括累积选定数量的信号采样，确定累积信号样本的平均值，并保持平均值的运行总和以供使用反馈信号产生。信号样本可以是例如WCDMA信号的样本。通过跟踪信号偏移误差，可以确定信号偏移误差或残差DC。例如，信号偏移误差可以包括DC分量和/或正弦分量。可以基于信号偏移误差来累积平均值的信号样本数。例如，可以将阈值确定为本发明的实施例的设计的一部分。

2. 发明申请

US20100135377A1 FREQUENCY DOMAIN EQUALIZER FOR DUAL ANTENNA RADIO 有权
标题翻译：用于双天线无线电的频域均衡器
公开(公告)号：US20100135377A1
公开(公告)日：2010-06-03
申请号：US12703311
申请日：2010-02-10
申请人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
发明人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
IPC分类号： H04B1/10 , H03K5/159
CPC分类号： H04L25/03038 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L2025/03426 , H04L2025/03605
摘要： A Radio Frequency (RF) receiver includes a RF front end and a baseband processing module coupled to the RF front end that is operable to receive a time domain signal that includes time domain training symbols and time domain data symbols. The baseband processing module includes a channel estimator operable to process the time domain training symbols to produce a time domain channel estimate, a Fast Fourier Transformer operable to convert the time domain channel estimate to the frequency domain to produce a frequency domain channel estimate, a weight calculator operable to produce frequency domain equalizer coefficients based upon the frequency domain channel estimate, an Inverse Fast Fourier Transformer operable to converting the frequency domain equalizer coefficients to the time domain to produce time domain equalizer coefficients, and an equalizer operable to equalize the time domain data symbols using the time domain equalizer coefficients.
摘要翻译：射频（RF）接收机包括RF前端和耦合到RF前端的基带处理模块，其可操作以接收包括时域训练符号和时域数据符号的时域信号。基带处理模块包括信道估计器，其可操作以处理时域训练符号以产生时域信道估计;快速傅立叶变换器，其可操作以将时域信道估计转换为频域以产生频域信道估计，权重计算器，其可操作以基于频域信道估计产生频域均衡器系数;反傅里叶变换器，其可操作以将频域均衡器系数转换到时域以产生时域均衡器系数;以及均衡器，其可操作以均衡时域数据符号使用时域均衡器系数。

3. 发明申请

US20080075209A1 Frequency domain equalizer for dual antenna radio 有权
标题翻译：双天线收音机的频域均衡器
公开(公告)号：US20080075209A1
公开(公告)日：2008-03-27
申请号：US11524584
申请日：2006-09-21
申请人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
发明人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
IPC分类号： H04L1/02 , H04B1/10
CPC分类号： H04L25/03038 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L2025/03426 , H04L2025/03605
摘要： A Radio Frequency (RF) receiver includes a RF front end and a baseband processing module coupled to the RF front end that is operable to receive a time domain signal that includes time domain training symbols and time domain data symbols. The baseband processing module includes a channel estimator operable to process the time domain training symbols to produce a time domain channel estimate, a Fast Fourier Transformer operable to convert the time domain channel estimate to the frequency domain to produce a frequency domain channel estimate, a weight calculator operable to produce frequency domain equalizer coefficients based upon the frequency domain channel estimate, an Inverse Fast Fourier Transformer operable to converting the frequency domain equalizer coefficients to the time domain to produce time domain equalizer coefficients, and an equalizer operable to equalize the time domain data symbols using the time domain equalizer coefficients.
摘要翻译：射频（RF）接收机包括RF前端和耦合到RF前端的基带处理模块，其可操作以接收包括时域训练符号和时域数据符号的时域信号。基带处理模块包括信道估计器，其可操作以处理时域训练符号以产生时域信道估计;快速傅立叶变换器，其可操作以将时域信道估计转换为频域以产生频域信道估计，权重计算器，其可操作以基于频域信道估计产生频域均衡器系数;反傅里叶变换器，其可操作以将频域均衡器系数转换到时域以产生时域均衡器系数;以及均衡器，其可操作以均衡时域数据符号使用时域均衡器系数。

4. 发明授权

US07907662B2 Frequency domain equalizer for dual antenna radio 有权
标题翻译：双天线收音机的频域均衡器
公开(公告)号：US07907662B2
公开(公告)日：2011-03-15
申请号：US12703311
申请日：2010-02-10
申请人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
发明人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
IPC分类号： H03H7/30
CPC分类号： H04L25/03038 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L2025/03426 , H04L2025/03605
摘要： A Radio Frequency (RF) receiver includes a RF front end and a baseband processing module coupled to the RF front end that is operable to receive a time domain signal that includes time domain training symbols and time domain data symbols. The baseband processing module includes a channel estimator operable to process the time domain training symbols to produce a time domain channel estimate, a Fast Fourier Transformer operable to convert the time domain channel estimate to the frequency domain to produce a frequency domain channel estimate, a weight calculator operable to produce frequency domain equalizer coefficients based upon the frequency domain channel estimate, an Inverse Fast Fourier Transformer operable to converting the frequency domain equalizer coefficients to the time domain to produce time domain equalizer coefficients, and an equalizer operable to equalize the time domain data symbols using the time domain equalizer coefficients.
摘要翻译：射频（RF）接收机包括RF前端和耦合到RF前端的基带处理模块，其可操作以接收包括时域训练符号和时域数据符号的时域信号。基带处理模块包括信道估计器，其可操作以处理时域训练符号以产生时域信道估计;快速傅立叶变换器，其可操作以将时域信道估计转换为频域以产生频域信道估计，权重计算器，其可操作以基于频域信道估计产生频域均衡器系数;反傅里叶变换器，其可操作以将频域均衡器系数转换到时域以产生时域均衡器系数;以及均衡器，其可操作以均衡时域数据符号使用时域均衡器系数。

5. 发明授权

US07697596B2 Cluster path processor time alignment for signal suppression/separation in a wireless device 有权
标题翻译：用于无线设备中信号抑制/分离的群集路径处理器时间对齐
公开(公告)号：US07697596B2
公开(公告)日：2010-04-13
申请号：US11731317
申请日：2007-03-29
申请人： Junqiang Li , Nelson R. Sollenberger , Li Fung Chang , Mark David Hahm , Hongwei Kong
发明人： Junqiang Li , Nelson R. Sollenberger , Li Fung Chang , Mark David Hahm , Hongwei Kong
IPC分类号： H04B1/00
CPC分类号： H04L7/0054 , H04B1/7085 , H04B1/7117 , H04L7/007 , H04L7/033
摘要： A system for processing radio frequency (RF) signals includes a searcher and a plurality of Cluster Path Processor (CPPs). The searcher detects a maximum signal energy level and position of at least one of a plurality of individual distinct path signals in a signal cluster of a first information signal, wherein at least a portion of the plurality of individual distinct path signals is received within a duration of a corresponding delay spread. The sampling position is used as a starting sampling location by the plurality of CPPs, including a first information signal CPP and a second information signal CPP. Fine sampling positions of the plurality of CPPs are based upon channel energy estimates for the plurality of individual distinct path signals. CPP outputs are employed to produce channel estimates, which are themselves used in subsequent equalization operations. Sampling positions may change over time in order to satisfy alignment criteria.
摘要翻译：用于处理射频（RF）信号的系统包括搜索器和多个群集路径处理器（CPP）。搜索器在第一信息信号的信号簇中检测最大信号能级和多个独立不同路径信号中的至少一个的位置，其中多个独立不同路径信号的至少一部分在持续时间内被接收的相应的延迟传播。采样位置由多个CPP用作起始采样位置，包括第一信息信号CPP和第二信息信号CPP。多个CPP的精细采样位置是基于多个独立不同路径信号的信道能量估计。 CPP输出用于产生信道估计，它们本身用于随后的均衡操作。采样位置可能随时间而变化，以满足对准标准。

6. 发明授权

US07684526B2 Frequency domain equalizer for dual antenna radio 有权
标题翻译：双天线收音机的频域均衡器
公开(公告)号：US07684526B2
公开(公告)日：2010-03-23
申请号：US11524584
申请日：2006-09-21
申请人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
发明人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
IPC分类号： H04B7/10
CPC分类号： H04L25/03038 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L2025/03426 , H04L2025/03605
摘要： A Radio Frequency (RF) receiver includes a RF front end and a baseband processing module coupled to the RF front end that is operable to receive a time domain signal that includes time domain training symbols and time domain data symbols. The baseband processing module includes a channel estimator operable to process the time domain training symbols to produce a time domain channel estimate, a Fast Fourier Transformer operable to convert the time domain channel estimate to the frequency domain to produce a frequency domain channel estimate, a weight calculator operable to produce frequency domain equalizer coefficients based upon the frequency domain channel estimate, an Inverse Fast Fourier Transformer operable to converting the frequency domain equalizer coefficients to the time domain to produce time domain equalizer coefficients, and an equalizer operable to equalize the time domain data symbols using the time domain equalizer coefficients.
摘要翻译：射频（RF）接收机包括RF前端和耦合到RF前端的基带处理模块，其可操作以接收包括时域训练符号和时域数据符号的时域信号。基带处理模块包括信道估计器，其可操作以处理时域训练符号以产生时域信道估计;快速傅立叶变换器，其可操作以将时域信道估计转换为频域以产生频域信道估计，权重计算器，其可操作以基于频域信道估计产生频域均衡器系数;反傅里叶变换器，其可操作以将频域均衡器系数转换到时域以产生时域均衡器系数;以及均衡器，其可操作以均衡时域数据符号使用时域均衡器系数。

7. 发明申请

US20080075208A1 Frequency domain equalizer with one dominate interference cancellation for dual antenna radio 有权
标题翻译：频域均衡器，具有双天线收音机的主导干扰消除
公开(公告)号：US20080075208A1
公开(公告)日：2008-03-27
申请号：US11524580
申请日：2006-09-21
申请人： Junqiang Li , Nelson R. Sollenberger , Joseph Boccuzzi , Li Fung Chang
发明人： Junqiang Li , Nelson R. Sollenberger , Joseph Boccuzzi , Li Fung Chang
IPC分类号： H04L1/02 , H04B1/10
CPC分类号： H04L25/03159 , H04B7/0854 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L25/03012 , H04L25/03891 , H04L25/03968 , H04L2025/03414 , H04L2025/03426
摘要： A Radio Frequency (RF) receiver includes a RF front end and a baseband processing module coupled to the RF front end that is operable to receive a time domain signal that includes desired signal and interfering signal time domain training symbols and time domain data symbols. The baseband processing module includes a channel estimator operable to process the desired signal and interfering signal time domain training symbols to produce a respective time domain channel estimates, a Fast Fourier Transformer operable to convert the time domain channel estimates to the frequency domain to produce frequency domain channel estimates, a weight calculator operable to produce frequency domain equalizer coefficients based upon the frequency domain channel estimates, an Inverse Fast Fourier Transformer operable to convert the frequency domain equalizer coefficients to the time domain to produce time domain equalizer coefficients, and an equalizer operable to equalize the time domain data symbols using the time domain equalizer coefficients.
摘要翻译：射频（RF）接收机包括RF前端和耦合到RF前端的基带处理模块，其可操作以接收包括期望信号和干扰信号时域训练符号和时域数据符号的时域信号。基带处理模块包括信道估计器，其可操作以处理所需信号和干扰信号时域训练符号以产生相应的时域信道估计，快速傅里叶变换器可操作以将时域信道估计转换为频域以产生频域信道估计，可用于基于频域信道估计产生频域均衡器系数的权重计算器，可操作以将频域均衡器系数转换到时域以产生时域均衡器系数的反傅立叶变换器，以及均衡器，其可操作以使用时域均衡器系数均衡时域数据符号。

8. 发明申请

US20080075148A1 Maximum energy delay locked loop for cluster path processing in a wireless device 有权
标题翻译：用于无线设备中集群路径处理的最大能量延迟锁定环路
公开(公告)号：US20080075148A1
公开(公告)日：2008-03-27
申请号：US11524583
申请日：2006-09-21
申请人： Junqiang Li , Mark David Hahm , Li Fung Chang
发明人： Junqiang Li , Mark David Hahm , Li Fung Chang
IPC分类号： H04B1/00
CPC分类号： H04L7/007 , H04B1/7117 , H04L7/033
摘要： A system for processing radio frequency (RF) signals includes a searcher and a Cluster Path Processor (CPP). The searcher detects a maximum signal energy level and position of at least one of a plurality of individual distinct path signals in a signal cluster, wherein at least a portion of the plurality of individual distinct path signals is received within a duration of a corresponding delay spread. The CPP includes a group finger array having a plurality of group fingers and determines a coarse sampling position of the group finger array based upon the position of the at least one of a plurality of individual distinct path signals in the signal cluster. The CPP determines a fine sampling position based upon determines a composite channel energy estimate for the plurality of individual distinct path signals. Using this fine sampling position, the CPP receives at least a portion of the plurality of individual distinct path signals by the group finger array.
摘要翻译：用于处理射频（RF）信号的系统包括搜索器和群集路径处理器（CPP）。搜索器检测信号簇中的多个独立不同路径信号中的至少一个的最大信号能级和位置，其中多个独立不同路径信号的至少一部分在相应延迟扩展的持续时间内被接收。 CPP包括具有多个组指的组指阵列，并且基于信号簇中的多个单独不同路径信号中的至少一个的位置来确定组指阵列的粗略采样位置。 CPP基于确定多个个体不同路径信号的复合信道能量估计来确定精细采样位置。使用该精细采样位置，CPP通过组手指阵列接收多个单独不同路径信号的至少一部分。

9. 发明授权

US07889822B2 Frequency domain equalizer with one dominant interference cancellation for dual antenna radio 有权
标题翻译：频域均衡器具有一个主要的干扰消除用于双天线无线电
公开(公告)号：US07889822B2
公开(公告)日：2011-02-15
申请号：US11524580
申请日：2006-09-21
申请人： Junqiang Li , Nelson R. Sollenberger , Joseph Boccuzzi , Li Fung Chang
发明人： Junqiang Li , Nelson R. Sollenberger , Joseph Boccuzzi , Li Fung Chang
IPC分类号： H04B7/10 , H04B7/216 , H04K1/10
CPC分类号： H04L25/03159 , H04B7/0854 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L25/03012 , H04L25/03891 , H04L25/03968 , H04L2025/03414 , H04L2025/03426
摘要： A Radio Frequency (RF) receiver includes a RF front end and a baseband processing module coupled to the RF front end that is operable to receive a time domain signal that includes desired signal and interfering signal time domain training symbols and time domain data symbols. The baseband processing module includes a channel estimator operable to process the desired signal and interfering signal time domain training symbols to produce a respective time domain channel estimates, a Fast Fourier Transformer operable to convert the time domain channel estimates to the frequency domain to produce frequency domain channel estimates, a weight calculator operable to produce frequency domain equalizer coefficients based upon the frequency domain channel estimates, an Inverse Fast Fourier Transformer operable to convert the frequency domain equalizer coefficients to the time domain to produce time domain equalizer coefficients, and an equalizer operable to equalize the time domain data symbols using the time domain equalizer coefficients.
摘要翻译：射频（RF）接收机包括RF前端和耦合到RF前端的基带处理模块，其可操作以接收包括期望信号和干扰信号时域训练符号和时域数据符号的时域信号。基带处理模块包括信道估计器，其可操作以处理所需信号和干扰信号时域训练符号以产生相应的时域信道估计，快速傅里叶变换器可操作以将时域信道估计转换为频域以产生频域信道估计，可用于基于频域信道估计产生频域均衡器系数的权重计算器，可操作以将频域均衡器系数转换到时域以产生时域均衡器系数的反傅立叶变换器，以及均衡器，其可操作以使用时域均衡器系数均衡时域数据符号。

10. 发明授权

US07889781B2 Maximum energy delay locked loop for cluster path processing in a wireless device 有权
标题翻译：用于无线设备中集群路径处理的最大能量延迟锁定环路
公开(公告)号：US07889781B2
公开(公告)日：2011-02-15
申请号：US11524583
申请日：2006-09-21
申请人： Junqiang Li , Mark David Hahm , Li Fung Chang
发明人： Junqiang Li , Mark David Hahm , Li Fung Chang
IPC分类号： H04B1/00 , H04L27/06 , H04L27/14
CPC分类号： H04L7/007 , H04B1/7117 , H04L7/033
摘要： A system for processing radio frequency (RF) signals includes a searcher and a Cluster Path Processor (CPP). The searcher detects a maximum signal energy level and position of at least one of a plurality of individual distinct path signals in a signal cluster, wherein at least a portion of the plurality of individual distinct path signals is received within a duration of a corresponding delay spread. The CPP includes a group finger array having a plurality of group fingers and determines a coarse sampling position of the group finger array based upon the position of the at least one of a plurality of individual distinct path signals in the signal cluster. The CPP determines a fine sampling position based upon determines a composite channel energy estimate for the plurality of individual distinct path signals. Using this fine sampling position, the CPP receives at least a portion of the plurality of individual distinct path signals by the group finger array.
摘要翻译：用于处理射频（RF）信号的系统包括搜索器和群集路径处理器（CPP）。搜索器检测信号簇中的多个独立不同路径信号中的至少一个的最大信号能级和位置，其中多个独立不同路径信号的至少一部分在相应延迟扩展的持续时间内被接收。 CPP包括具有多个组指的组指阵列，并且基于信号簇中的多个单独不同路径信号中的至少一个的位置来确定组指阵列的粗略采样位置。 CPP基于确定多个个体不同路径信号的复合信道能量估计来确定精细采样位置。使用该精细采样位置，CPP通过组手指阵列接收多个单独不同路径信号的至少一部分。

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