公开(公告)号：US08112053B2

公开(公告)日：2012-02-07

申请号：US11751848

申请日：2007-05-22

申请人： Prasanna Desai ,  Mark Gonikberg ,  Brima B. Ibrahim ,  Luis Gutierrez ,  Sreenivas Karanam ,  Thomas Varghese

发明人： Prasanna Desai ,  Mark Gonikberg ,  Brima B. Ibrahim ,  Luis Gutierrez ,  Sreenivas Karanam ,  Thomas Varghese

IPC分类号： H03G3/00 ,  H04B1/06

CPC分类号： H04B7/0874 ,  H04B7/0691

摘要： A wireless device includes at least one antenna, a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including a shared adjustable gain element, e.g., Low Noise Amplifier (LNA), Power Amplifier (PA), etc., a first wireless interface, e.g. Wireless Local Area Network interface coupled to the plurality of shared signal path components, and a second wireless interface, e.g., Wireless Personal Area Network interface, coupled to the plurality of shared signal path components. During a first operational period, the first wireless interface controls gain of the shared adjustable gain element and during a second operational period that differs from the first operational period, the second wireless network interface controls gain of the shared adjustable gain element. With another embodiment the first wireless interface and/or the second wireless interface each includes shared adjustable gain elements for transmit and receive diversity.

摘要翻译： 无线设备包括至少一个天线，耦合到所述至少一个天线的多个共享信号路径组件，所述多个共享信号路径分量包括共享可调增益元件，例如低噪声放大器（LNA），功率放大器 PA）等，第一无线接口，例如 耦合到多个共享信号路径部件的无线局域网接口，以及耦合到多个共享信号路径部件的第二无线接口，例如无线个域网接口。 在第一操作时段期间，第一无线接口控制共享可调增益元件的增益，并且在与第一操作周期不同的第二操作周期期间，第二无线网络接口控制共享可调增益元件的增益。 在另一实施例中，第一无线接口和/或第二无线接口各自包括用于发射和接收分集的共享可调增益元件。

公开(公告)号：US20080139141A1

公开(公告)日：2008-06-12

申请号：US11777543

申请日：2007-07-13

申请人： George Varghese ,  Pankaj Saxena ,  Sreenivas Karanam ,  Sudhindra Bellary

发明人： George Varghese ,  Pankaj Saxena ,  Sreenivas Karanam ,  Sudhindra Bellary

IPC分类号： H04B1/04

CPC分类号： H04B1/0475 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3294 ,  H03F1/34 ,  H03F3/24 ,  H03F2200/336 ,  H03F2200/408 ,  H03F2200/438 ,  H03F2200/447 ,  H03F2200/468 ,  H03F2201/3233 ,  H04B2001/0425

摘要： Aspects of a method and system for estimating and compensating for non-linear distortion in a transmitter using data signal feedback are presented. Aspects of the system may include a method and system by which predistortion values, for compensating for non-linear distortion, may be computed based on feedback signals generated in response to wideband input signals. The wideband input signals may comprise a plurality of frequency components and/or signal amplitudes. The predistortion values may be computed by time-synchronizing a wideband input signal generated at a given time instant, and the feedback signal generated at a subsequent time instant in response. A predistortion function may be computed by computing predistortion values for a plurality of signal amplitude values and/or IC operating temperatures. The computed values may be stored in a lookup table and retrieved to predistort subsequent wideband input signals based on the amplitude of the signals and/or the IC operating temperature.

摘要翻译： 提出了使用数据信号反馈来估计和补偿发射机中的非线性失真的方法和系统的方面。 该系统的方面可以包括一种方法和系统，通过该方法和系统，可以基于响应于宽带输入信号而产生的反馈信号来计算用于补偿非线性失真的预失真值。 宽带输入信号可以包括多个频率分量和/或信号幅度。 预失真值可以通过对在给定时刻产生的宽带输入信号进行时间同步和在随后的时刻产生的反馈信号来计算。 可以通过计算多个信号振幅值和/或IC工作温度的预失真值来计算预失真函数。 所计算的值可以存储在查找表中，并且基于信号的幅度和/或IC工作温度来检索以预测后续的宽带输入信号。

公开(公告)号：US20080293368A1

公开(公告)日：2008-11-27

申请号：US11751848

申请日：2007-05-22

申请人： Prasanna Desai ,  Mark Gonikberg ,  Brima B. Ibrahim ,  Luis Gutierrez ,  Sreenivas Karanam ,  Thomas Varghese

发明人： Prasanna Desai ,  Mark Gonikberg ,  Brima B. Ibrahim ,  Luis Gutierrez ,  Sreenivas Karanam ,  Thomas Varghese

IPC分类号： H04B17/02

CPC分类号： H04B7/0874 ,  H04B7/0691

摘要： A wireless device includes at least one antenna, a plurality of shared signal path components coupled to the at least one antenna, the plurality of shared signal path components including a shared adjustable gain element, e.g., Low Noise Amplifier (LNA), Power Amplifier (PA), etc., a first wireless interface, e.g. Wireless Local Area Network interface coupled to the plurality of shared signal path components, and a second wireless interface, e.g., Wireless Personal Area Network interface, coupled to the plurality of shared signal path components. During a first operational period, the first wireless interface controls gain of the shared adjustable gain element and during a second operational period that differs from the first operational period, the second wireless network interface controls gain of the shared adjustable gain element. With another embodiment the first wireless interface and/or the second wireless interface each includes shared adjustable gain elements for transmit and receive diversity.

摘要翻译： 无线设备包括至少一个天线，耦合到所述至少一个天线的多个共享信号路径组件，所述多个共享信号路径分量包括共享可调增益元件，例如低噪声放大器（LNA），功率放大器 PA）等，第一无线接口，例如 耦合到多个共享信号路径部件的无线局域网接口，以及耦合到多个共享信号路径部件的第二无线接口，例如无线个域网接口。 在第一操作时段期间，第一无线接口控制共享可调增益元件的增益，并且在与第一操作周期不同的第二操作周期期间，第二无线网络接口控制共享可调增益元件的增益。 在另一实施例中，第一无线接口和/或第二无线接口各自包括用于发射和接收分集的共享可调增益元件。