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公开(公告)号：US08493942B2
公开(公告)日：2013-07-23
申请号：US11492609
申请日：2006-07-24
IPC分类号： H04B7/216
CPC分类号： H04L25/0236 , H04B1/7107 , H04B2201/70701
摘要： Techniques for recovering transmissions on data and control channels with interference cancellation are described. A receiver derives a first interference estimate for a first channel based on a first channel estimate and cancels the first interference estimate from an input signal. The receiver thereafter derives a second interference estimate for the first channel based on a second channel estimate and cancels the second interference estimate in place of the first interference estimate from the input signal. The receiver may derive the first channel estimate based on pilot symbols and may derive the second channel estimate based on a correctly decoded packet. The second channel estimate may be of higher quality than the first channel estimate.
摘要翻译： 描述了用于在具有干扰消除的数据和控制信道上恢复传输的技术。 接收机基于第一信道估计导出第一信道的第一干扰估计，并从输入信号中消除第一干扰估计。 接收机此后基于第二信道估计得出第一信道的第二干扰估计，并且从输入信号中取代第二干扰估计代替第一干扰估计。 接收机可以基于导频符号导出第一信道估计，并且可以基于正确解码的分组导出第二信道估计。 第二信道估计可以具有比第一信道估计更高的质量。
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2.发明授权Channel equalization with non-common midamble allocation in 3GPP TD-CDMA systems 有权在3GPP TD-CDMA系统中使用非公共中置码分配的信道均衡公开(公告)号：US08102795B2
公开(公告)日：2012-01-24
申请号：US11684251
申请日：2007-03-09
IPC分类号： H04B7/212
CPC分类号： H04L25/03038 , H04L25/0228
摘要： Systems and methodologies are described that facilitate implementing a linear adaptive equalizer receiver on the downlink link of a UMTS TDD wireless communication system. A reference signal can be generated based on multiple non-common midamble sequences in a time slot of a received transmission. Traffic-to-pilot ratios for channel codes in the time slot can be generated, and relative strengths of channel codes associated with specific midambles can be determined to weight the midamble. A plurality of the weighted midambles can then be utilized to generate a reference signal to train the equalizer, which can facilitate utilization of total aggregate midamble energy rather than midamble energy associated with a single midamble in the signal.
摘要翻译： 描述了有助于在UMTS TDD无线通信系统的下行链路链路上实现线性自适应均衡器接收机的系统和方法。 可以基于接收到的传输的时隙中的多个非公共中继码序列来生成参考信号。 可以生成时隙中的信道码的业务导频比，并且可以确定与特定中间码相关联的信道码的相对强度以加权中间码。 然后可以利用多个加权的中间码来产生参考信号以训练均衡器，这可以有助于总共聚合中间码能量的利用，而不是信号中与单个中间码相关联的中间码能量。
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3.发明申请CHANNEL EQUALIZATION WITH NON-COMMON MIDAMBLE ALLOCATION IN 3GPP TD-CDMA SYSTEMS 有权在3GPP TD-CDMA系统中使用非公共MIDAMBLE分配的信道均衡公开(公告)号：US20080219342A1
公开(公告)日：2008-09-11
申请号：US11684251
申请日：2007-03-09
CPC分类号： H04L25/03038 , H04L25/0228
摘要： Systems and methodologies are described that facilitate implementing a linear adaptive equalizer receiver on the downlink link of a UMTS TDD wireless communication system. A reference signal can be generated based on multiple non-common midamble sequences in a time slot of a received transmission. Traffic-to-pilot ratios for channel codes in the time slot can be generated, and relative strengths of channel codes associated with specific midambles can be determined to weight the midamble. A plurality of the weighted midambles can then be utilized to generate a reference signal to train the equalizer, which can facilitate utilization of total aggregate midamble energy rather than midamble energy associated with a single midamble in the signal.
摘要翻译： 描述了有助于在UMTS TDD无线通信系统的下行链路链路上实现线性自适应均衡器接收机的系统和方法。 可以基于接收到的传输的时隙中的多个非公共中继码序列来生成参考信号。 可以生成时隙中的信道码的业务导频比，并且可以确定与特定中间码相关联的信道码的相对强度以加权中间码。 然后可以利用多个加权的中间码来产生参考信号以训练均衡器，这可以有助于总共聚合中间码能量的利用，而不是信号中与单个中间码相关联的中间码能量。
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4.发明授权Technique for tuner automatic gain control circuit for mobile television applications 有权用于移动电视应用的调谐器自动增益控制电路技术公开(公告)号：US08169546B2
公开(公告)日：2012-05-01
申请号：US12033323
申请日：2008-02-19
申请人： Xiaoyu Fu , Jun Ma , Waleed M. Younis , Nabil Yousef , Janakan Sivasubramaniam , Edward Youssoufian
发明人： Xiaoyu Fu , Jun Ma , Waleed M. Younis , Nabil Yousef , Janakan Sivasubramaniam , Edward Youssoufian
IPC分类号： H04N5/52 , H04N3/27 , H04N5/00 , H04N5/44 , H04B1/40 , H04B17/02 , H04B1/06 , H04B7/00 , H04B1/26 , H04B1/00 , H04L27/06 , H04L17/08
CPC分类号： H04N5/52 , H03G3/001 , H03G3/3068 , H04N5/4446
摘要： A technique for providing stable tracking performance to an AGC loop circuit comprises amplifying a wideband radio frequency signal; detecting signals and blockers adjacent to the radio frequency signal; lowering a gain of the radio frequency signal; mixing a local oscillator signal with the radio frequency signal; shifting a frequency of the radio frequency signal from a radio frequency to an intermediate frequency; continuously varying a gain of the intermediate frequency signal; converting the intermediate frequency signal into a digital output signal; comparing the digital output signal with predefined thresholds comprising an upper threshold and a lower threshold; switching a post mixer amplifier (PMA) to a high gain state when an input of a variable gain amplifier (VGA) is greater than the upper threshold, and switching the PMA to a low gain state when an input of the VGA is lower than the lower threshold.
摘要翻译： 一种用于向AGC环路电路提供稳定跟踪性能的技术包括放大宽带射频信号; 检测与射频信号相邻的信号和阻塞; 降低射频信号的增益; 将本地振荡器信号与射频信号混合; 将射频信号的频率从射频转换到中频; 连续地改变中频信号的增益; 将所述中频信号转换为数字输出信号; 将数字输出信号与包括上阈值和下阈值的预定义阈值进行比较; 当可变增益放大器（VGA）的输入大于上阈值时，将后混频器放大器（PMA）切换到高增益状态，并且当VGA的输入低于该阈值时，将PMA切换到低增益状态 较低的门槛。
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5.发明申请TECHNIQUE FOR TUNER AUTOMATIC GAIN CONTROL CIRCUIT FOR MOBILE TELEVISION APPLICATIONS 有权用于移动电视应用的调谐器自动增益控制电路的技术公开(公告)号：US20090207311A1
公开(公告)日：2009-08-20
申请号：US12033323
申请日：2008-02-19
申请人： Xiaoyu Fu , Jun Ma , Waleed M. Younis , Nabil Yousef , Janakan Sivasubramaniam , Edward Youssoufian
发明人： Xiaoyu Fu , Jun Ma , Waleed M. Younis , Nabil Yousef , Janakan Sivasubramaniam , Edward Youssoufian
CPC分类号： H04N5/52 , H03G3/001 , H03G3/3068 , H04N5/4446
摘要： A technique for providing stable tracking performance to an AGC loop circuit comprises amplifying a wideband radio frequency signal; detecting signals and blockers adjacent to the radio frequency signal; lowering a gain of the radio frequency signal; mixing a local oscillator signal with the radio frequency signal; shifting a frequency of the radio frequency signal from a radio frequency to an intermediate frequency; continuously varying a gain of the intermediate frequency signal; converting the intermediate frequency signal into a digital output signal; comparing the digital output signal with predefined thresholds comprising an upper threshold and a lower threshold; switching a post mixer amplifier (PMA) to a high gain state when an input of a variable gain amplifier (VGA) is greater than the upper threshold, and switching the PMA to a low gain state when an input of the VGA is lower than the lower threshold.
摘要翻译： 一种用于向AGC环路电路提供稳定跟踪性能的技术包括放大宽带射频信号; 检测与射频信号相邻的信号和阻塞; 降低射频信号的增益; 将本地振荡器信号与射频信号混合; 将射频信号的频率从射频转换到中频; 连续地改变中频信号的增益; 将所述中频信号转换为数字输出信号; 将数字输出信号与包括上阈值和下阈值的预定阈值进行比较; 当可变增益放大器（VGA）的输入大于上阈值时，将后混频器放大器（PMA）切换到高增益状态，并且当VGA的输入低于该阈值时，将PMA切换到低增益状态 较低的门槛。
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