专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 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。

3. 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。

4. 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。

5. 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。

6. 发明授权

US07894508B2 WCDMA terminal baseband processing module having cell searcher module 失效
标题翻译： WCDMA终端基带处理模块具有小区搜索器模块
公开(公告)号：US07894508B2
公开(公告)日：2011-02-22
申请号：US11221145
申请日：2005-09-06
申请人： Mark David Hahm , Li Fung Chang , Nelson R. Sollenberger
发明人： Mark David Hahm , Li Fung Chang , Nelson R. Sollenberger
IPC分类号： H04B1/00
CPC分类号： H04B1/70735 , H04B1/7083 , H04B2201/70707
摘要： A baseband processing module includes TX processing components, a processor, memory, an RX interface, and a cell searcher module. The TX processing components receive outbound data, process the outbound data to produce a baseband TX signal, and output the baseband TX signal to a RF front end of the RF transceiver. The RX interface receives a baseband RX signal from the RF front end carrying a WCDMA signal. The cell searcher module receives the baseband RX signal, scans for WCDMA energy within the baseband RX signal, acquires slot synchronization to the WCDMA signal based upon correlation with a Primary Synchronization Channel (PSCH) of the WCDMA signal, acquires frame synchronization to, and identify a code group of, the WCDMA signal based upon correlation with a Secondary Synchronization Channel (SSCH) of the WCDMA signal, and identifies the scrambling code of the WCDMA signal based upon correlation with a Common Pilot Channel (CPICH) of the WCDMA signal.
摘要翻译：基带处理模块包括TX处理组件，处理器，存储器，RX接口和小区搜索器模块。 TX处理组件接收出站数据，处理出站数据以产生基带TX信号，并将基带TX信号输出到RF收发器的RF前端。 RX接口从承载WCDMA信号的RF前端接收基带RX信号。小区搜索器模块接收基带RX信号，扫描基带RX信号内的WCDMA能量，基于与WCDMA信号的主同步信道（PSCH）的相关性，获取WCDMA信号的时隙同步，获取帧同步和识别基于与WCDMA信号的次同步信道（SSCH）的相关性的WCDMA信号的码组，并且基于与WCDMA信号的公共导频信道（CPICH）的相关性来识别WCDMA信号的扰码。

7. 发明授权

US07885319B2 Multiple branch PSYNC detection module 失效
标题翻译：多分支PSYNC检测模块
公开(公告)号：US07885319B2
公开(公告)日：2011-02-08
申请号：US11852828
申请日：2007-09-10
申请人： Mark David Hahm , Wei Luo , Li Fung Chang , Nelson R. Sollenberger , Hendrik Johannes Conroy
发明人： Mark David Hahm , Wei Luo , Li Fung Chang , Nelson R. Sollenberger , Hendrik Johannes Conroy
IPC分类号： H04B1/00
CPC分类号： H04B1/7075 , H04B2201/70722 , H04B2201/70728
摘要： A wireless terminal is operable to receive a Wideband Code Division Multiple Access (WCDMA) signal from a base station and includes clock circuitry, a wireless interface, and a Primary Synchronization (PSYNC) module. The clock circuitry generates a wireless terminal clock using a wireless terminal oscillator. The wireless interface receives the WCDMA signal, which is produced by the base station using a base station clock that is produced using a base station oscillator that is more accurate than the wireless terminal oscillator. The PSYNC module includes a plurality of PSYNC correlation branches. Each PSYNC correlation branch phase rotates the WCDMA signal based upon a respective frequency offset, correlates the phase rotated WCDMA signal with a Primary Synchronization Channel (PSCH) code over a plurality of sampling positions, and produces PSYNC correlation energies based upon the correlations for each of the plurality of sampling positions.
摘要翻译：无线终端可操作以从基站接收宽带码分多址（WCDMA）信号，并包括时钟电路，无线接口和主同步（PSYNC）模块。时钟电路使用无线终端振荡器产生无线终端时钟。无线接口接收由基站使用基站振荡器产生的WCDMA信号，该基站时钟是使用比无线终端振荡器更准确的基站振荡器产生的。 PSYNC模块包括多个PSYNC相关分支。每个PSYNC相关分支相位基于相应的频率偏移旋转WCDMA信号，将相位旋转的WCDMA信号与多个采样位置上的主同步信道（PSCH）码相关联，并且基于每个的相关性产生PSYNC相关能量多个采样位置。

8. 发明申请

US20090034589A1 MULTIPLE BRANCH PSYNC DETECTION MODULE 失效
标题翻译：多分支PSYNC检测模块
公开(公告)号：US20090034589A1
公开(公告)日：2009-02-05
申请号：US11852828
申请日：2007-09-10
申请人： Mark David Hahm , Wei Luo , Li Fung Chang , Nelson R. Sollenberger , Hendrik Johannes Conroy
发明人： Mark David Hahm , Wei Luo , Li Fung Chang , Nelson R. Sollenberger , Hendrik Johannes Conroy
IPC分类号： H04J13/02
CPC分类号： H04B1/7075 , H04B2201/70722 , H04B2201/70728
摘要： A wireless terminal is operable to receive a Wideband Code Division Multiple Access (WCDMA) signal from a base station and includes clock circuitry, a wireless interface, and a Primary Synchronization (PSYNC) module. The clock circuitry generates a wireless terminal clock using a wireless terminal oscillator. The wireless interface receives the WCDMA signal, which is produced by the base station using a base station clock that is produced using a base station oscillator that is more accurate than the wireless terminal oscillator. The PSYNC module includes a plurality of PSYNC correlation branches. Each PSYNC correlation branch phase rotates the WCDMA signal based upon a respective frequency offset, correlates the phase rotated WCDMA signal with a Primary Synchronization Channel (PSCH) code over a plurality of sampling positions, and produces PSYNC correlation energies based upon the correlations for each of the plurality of sampling positions.
摘要翻译：无线终端可操作以从基站接收宽带码分多址（WCDMA）信号，并且包括时钟电路，无线接口和主同步（PSYNC）模块。时钟电路使用无线终端振荡器产生无线终端时钟。无线接口接收由基站使用基站振荡器产生的WCDMA信号，该基站时钟是使用比无线终端振荡器更准确的基站振荡器产生的。 PSYNC模块包括多个PSYNC相关分支。每个PSYNC相关分支相位基于相应的频率偏移旋转WCDMA信号，将相位旋转的WCDMA信号与多个采样位置上的主同步信道（PSCH）码相关联，并且基于每个的相关性产生PSYNC相关能量多个采样位置。

9. 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。

10. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式