公开(公告)号：US20080232268A1

公开(公告)日：2008-09-25

申请号：US12052991

申请日：2008-03-21

申请人： Masoud Kahrizi ,  Jaleh Komaili ,  John E. Vasa

发明人： Masoud Kahrizi ,  Jaleh Komaili ,  John E. Vasa

IPC分类号： H04J1/16

CPC分类号： H04B1/525 ,  H04B1/30

摘要： A transmit signal second-order inter-modulation (IM2) canceller for a portable handset using a full duplex mode of operation (e.g., WCDMA) is used to controllably reduce IM2 introduced by a transmit signal that appears in a received signal in a receive channel of the portable handset. The transmit signal IM2 canceller includes a delay estimator and a digital signal adjuster. The delay estimator receives a first input from a receive channel and a second input from a transmit channel. The delay estimator generates an estimate of the IM2 that the transmit channel introduces in the receive channel. The digital signal adjuster removes the estimate of the IM2 before forwarding a modified receive channel signal to a baseband subsystem of the portable handset.

摘要翻译： 使用用于使用全双工操作模式（例如，WCDMA）的便携式手持机的发射信号二阶互调制（IM 2）消除器可控制地减少出现在接收信号中的发射信号引入的IM 2 接收便携式手机的通道。 发送信号IM 2消除器包括延迟估计器和数字信号调节器。 延迟估计器从接收信道接收第一输入，并从发送信道接收第二输入。 延迟估计器产生发送信道在接收信道中引入的IM 2的估计。 在将修改的接收信道信号转发到便携式手持机的基带子系统之前，数字信号调节器去除IM 2的估计。

公开(公告)号：US20110116403A1

公开(公告)日：2011-05-19

申请号：US12947905

申请日：2010-11-17

申请人： Masoud Kahrizi ,  Jaleh Komaili ,  John E. Vasa

发明人： Masoud Kahrizi ,  Jaleh Komaili ,  John E. Vasa

IPC分类号： H04W24/00

CPC分类号： H04B1/0475 ,  H04B1/30 ,  H04B1/525 ,  H04L25/03878

摘要： A transmit signal second-order inter-modulation (IM2) canceller for a portable handset using a full duplex mode of operation (e.g., WCDMA) is used to controllably reduce IM2 introduced by a transmit signal that appears in a received signal in a receive channel of the portable handset. The transmit signal IM2 canceller includes a delay estimator and a digital signal adjuster. The delay estimator receives a first input from a receive channel and a second input from a transmit channel. The delay estimator generates an estimate of the IM2 that the transmit channel introduces in the receive channel. The digital signal adjuster removes the estimate of the IM2 before forwarding a modified receive channel signal to a baseband subsystem of the portable handset.

摘要翻译： 用于使用全双工操作模式（例如，WCDMA）的便携式手机的发射信号二阶互调制（IM2）消除器被用于可控制地减少出现在接收信道中的接收信号中的发射信号引入的IM2 的便携式手机。 发送信号IM2消除器包括延迟估计器和数字信号调节器。 延迟估计器从接收信道接收第一输入，并从发送信道接收第二输入。 延迟估计器产生发送信道在接收信道中引入的IM2的估计。 在将修改的接收信道信号转发到便携式手持机的基带子系统之前，数字信号调节器去除IM2的估计。

公开(公告)号：US08855029B2

公开(公告)日：2014-10-07

申请号：US12947905

申请日：2010-11-17

申请人： Masoud Kahrizi ,  Jaleh Komaili ,  John E. Vasa

发明人： Masoud Kahrizi ,  Jaleh Komaili ,  John E. Vasa

IPC分类号： H04B1/44 ,  H04B1/30 ,  H04B1/04 ,  H04B1/52 ,  H04B7/212 ,  H04B1/38 ,  H04L5/16 ,  H03D1/04 ,  H04L25/03

CPC分类号： H04B1/0475 ,  H04B1/30 ,  H04B1/525 ,  H04L25/03878

摘要： A transmit signal second-order inter-modulation (IM2) canceller for a portable handset using a full duplex mode of operation (e.g., WCDMA) is used to controllably reduce IM2 introduced by a transmit signal that appears in a received signal in a receive channel of the portable handset. The transmit signal IM2 canceller includes a delay estimator and a digital signal adjuster. The delay estimator receives a first input from a receive channel and a second input from a transmit channel. The delay estimator generates an estimate of the IM2 that the transmit channel introduces in the receive channel. The digital signal adjuster removes the estimate of the IM2 before forwarding a modified receive channel signal to a baseband subsystem of the portable handset.

摘要翻译： 用于使用全双工操作模式（例如，WCDMA）的便携式手机的发射信号二阶互调制（IM2）消除器被用于可控制地减少出现在接收信道中的接收信号中的发射信号引入的IM2 的便携式手机。 发送信号IM2消除器包括延迟估计器和数字信号调节器。 延迟估计器从接收信道接收第一输入，并从发送信道接收第二输入。 延迟估计器产生发送信道在接收信道中引入的IM2的估计。 在将修改的接收信道信号转发到便携式手持机的基带子系统之前，数字信号调节器去除IM2的估计。

公开(公告)号：US08050201B2

公开(公告)日：2011-11-01

申请号：US12052991

申请日：2008-03-21

申请人： Masoud Kahrizi ,  Jaleh Komaili ,  John E. Vasa

发明人： Masoud Kahrizi ,  Jaleh Komaili ,  John E. Vasa

IPC分类号： H04B7/005

CPC分类号： H04B1/525 ,  H04B1/30

摘要： A transmit signal second-order inter-modulation (IM2) canceller for a portable handset using a full duplex mode of operation (e.g., WCDMA) is used to controllably reduce IM2 introduced by a transmit signal that appears in a received signal in a receive channel of the portable handset. The transmit signal IM2 canceller includes a delay estimator and a digital signal adjuster. The delay estimator receives a first input from a receive channel and a second input from a transmit channel. The delay estimator generates an estimate of the IM2 that the transmit channel introduces in the receive channel. The digital signal adjuster removes the estimate of the IM2 before forwarding a modified receive channel signal to a baseband subsystem of the portable handset.

摘要翻译： 使用用于使用全双工操作模式（例如，WCDMA）的便携式手机的发送信号二阶互调制（IM2）消除器可控制地减少出现在接收信道中的接收信号中的发送信号引入的IM2 的便携式手机。 发送信号IM2消除器包括延迟估计器和数字信号调节器。 延迟估计器从接收信道接收第一输入，并从发送信道接收第二输入。 延迟估计器产生发送信道在接收信道中引入的IM2的估计。 在将修改的接收信道信号转发到便携式手持机的基带子系统之前，数字信号调节器去除IM2的估计。

公开(公告)号：US08874051B2

公开(公告)日：2014-10-28

申请号：US13310434

申请日：2011-12-02

申请人： Dmitriy Rozenblit ,  Masoud Kahrizi ,  Jaleh Komaili ,  Rajasekhar Pullela ,  Shahrzad Tadjpour

发明人： Dmitriy Rozenblit ,  Masoud Kahrizi ,  Jaleh Komaili ,  Rajasekhar Pullela ,  Shahrzad Tadjpour

IPC分类号： H04B1/04 ,  H03G3/30

CPC分类号： H04L1/0033 ,  H03F1/0211 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/451 ,  H03F2200/465 ,  H03G3/3042

摘要： A transmitter adjusts a transmitted power level by modifying a control input of a variable gain amplifier. A power amplifier control system includes an envelope extractor, an error extractor, and a feed-forward multiplier. The envelope extractor receives data signal inputs and computes the envelope of the combined signal. The error extractor generates an error signal as a function of the combined signal and the output power generated by the power amplifier. The feed-forward multiplier generates a modified error signal that is responsive to a function of the gain in a feedback path. A corresponding method for controlling a power level is also disclosed. In some embodiments, a transmit chain with a power control loop is used to adjust the transmit signal power applied at an input of a variable gain amplifier. A corresponding method for adjusting the transmit signal power level is also included.

摘要翻译： 发射机通过修改可变增益放大器的控制输入来调整发射功率电平。 功率放大器控制系统包括信封提取器，误差提取器和前馈乘法器。 信封提取器接收数据信号输入并计算组合信号的包络。 误差提取器产生作为组合信号和功率放大器产生的输出功率的函数的误差信号。 前馈乘法器产生响应于反馈路径中的增益的函数的修改的误差信号。 还公开了一种用于控制功率电平的相应方法。 在一些实施例中，具有功率控制环路的发射链用于调整在可变增益放大器的输入处施加的发射信号功率。 还包括用于调整发射信号功率电平的相应方法。

公开(公告)号：US20120170624A1

公开(公告)日：2012-07-05

申请号：US13310434

申请日：2011-12-02

申请人： Dmitriy Rozenblit ,  Masoud Kahrizi ,  Jaleh Komaili ,  Rajasekhar Pullela ,  Shahrzad Tadjpour

发明人： Dmitriy Rozenblit ,  Masoud Kahrizi ,  Jaleh Komaili ,  Rajasekhar Pullela ,  Shahrzad Tadjpour

IPC分类号： H04W52/20 ,  H04B1/40 ,  H04L25/49

CPC分类号： H04L1/0033 ,  H03F1/0211 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/451 ,  H03F2200/465 ,  H03G3/3042

摘要： A transmitter adjusts a transmitted power level by modifying a control input of a variable gain amplifier. A power amplifier control system includes an envelope extractor, an error extractor, and a feed-forward multiplier. The envelope extractor receives data signal inputs and computes the envelope of the combined signal. The error extractor generates an error signal as a function of the combined signal and the output power generated by the power amplifier. The feed-forward multiplier generates a modified error signal that is responsive to a function of the gain in a feedback path. A corresponding method for controlling a power level is also disclosed. In some embodiments, a transmit chain with a power control loop is used to adjust the transmit signal power applied at an input of a variable gain amplifier. A corresponding method for adjusting the transmit signal power level is also included.

摘要翻译： 发射机通过修改可变增益放大器的控制输入来调整发射功率电平。 功率放大器控制系统包括信封提取器，误差提取器和前馈乘法器。 信封提取器接收数据信号输入并计算组合信号的包络。 误差提取器产生作为组合信号和功率放大器产生的输出功率的函数的误差信号。 前馈乘法器产生响应于反馈路径中的增益的函数的修改的误差信号。 还公开了一种用于控制功率电平的相应方法。 在一些实施例中，具有功率控制环路的发射链用于调整在可变增益放大器的输入处施加的发射信号功率。 还包括用于调整发射信号功率电平的相应方法。

公开(公告)号：US20110021237A1

公开(公告)日：2011-01-27

申请号：US12865687

申请日：2009-02-07

申请人： Yongqiang He ,  John E. Vasa ,  Masoud Kahrizi

发明人： Yongqiang He ,  John E. Vasa ,  Masoud Kahrizi

IPC分类号： H04B7/00

CPC分类号： H04W52/52 ,  H04W52/226 ,  H04W52/367

摘要： A mobile handset is arranged with an adaptive power controller to controllably adjust transmit power. The adaptive power controller is coupled to a power amplifier module to form a closed feedback loop. The adaptive power control module includes a first shifter, a first sealer, an accumulator and a hold element. The first shifter and first sealer receive respective bandwidth control signals and an error signal. The first shifter and first sealer generate a modified error signal that is forwarded to and filtered by the accumulator and the hold element to generate a power control signal. The power control signal, which is generated the radio frequency subsystem of the handset can quickly and accurately track rapid changes in transmit power.

摘要翻译： 移动手机配置有自适应功率控制器以可控地调节发射功率。 自适应功率控制器耦合到功率放大器模块以形成闭合反馈回路。 自适应功率控制模块包括第一变速器，第一闭合器，蓄能器和保持元件。 第一移位器和第一密封器接收相应的带宽控制信号和误差信号。 第一移位器和第一密封器产生经过累加器和保持元件转发和滤波的修正误差信号，以产生功率控制信号。 产生手机射频子系统的功率控制信号可以快速，准确地跟踪发射功率的快速变化。

公开(公告)号：US20080233994A1

公开(公告)日：2008-09-25

申请号：US12052635

申请日：2008-03-20

申请人： Masoud Kahrizi ,  John E. Vasa ,  Darioush Agahi

发明人： Masoud Kahrizi ,  John E. Vasa ,  Darioush Agahi

IPC分类号： H04B7/00

CPC分类号： H04L27/20 ,  H03L7/1974

摘要： A digital modulator for a portable handset using 8PSK or EDGE modulation with a direct launch transmitter is used to controllably adjust the transmit power of the portable handset. The digital modulator includes a controller coupled between a memory and an accumulator. The controller is responsive to an indication that the transmit power should be transitioned. The controller temporarily alters the data transferred from the memory to the accumulator during transitions of the transmit power level.

摘要翻译： 用于使用具有直接发射发射机的8PSK或EDGE调制的便携式手机的数字调制器用于可控地调节便携式手持机的发射功率。 数字调制器包括耦合在存储器和累加器之间的控制器。 控制器响应于应该转换发射功率的指示。 在发射功率电平转换期间，控制器暂时改变从存储器传输到累加器的数据。

公开(公告)号：US08606311B2

公开(公告)日：2013-12-10

申请号：US12865687

申请日：2009-02-07

申请人： Yongqiang He ,  John E. Vasa ,  Masoud Kahrizi

发明人： Yongqiang He ,  John E. Vasa ,  Masoud Kahrizi

IPC分类号： H04B7/00

CPC分类号： H04W52/52 ,  H04W52/226 ,  H04W52/367

摘要： A mobile handset is arranged with an adaptive power controller to controllably adjust transmit power. The adaptive power controller is coupled to a power amplifier module to form a closed feedback loop. The adaptive power control module includes a first shifter, a first sealer, an accumulator and a hold element. The first shifter and first sealer receive respective bandwidth control signals and an error signal. The first shifter and first sealer generate a modified error signal that is forwarded to and filtered by the accumulator and the hold element to generate a power control signal. The power control signal, which is generated the radio frequency subsystem of the handset can quickly and accurately track rapid changes in transmit power.

摘要翻译： 移动手机配置有自适应功率控制器以可控地调节发射功率。 自适应功率控制器耦合到功率放大器模块以形成闭合反馈回路。 自适应功率控制模块包括第一变速器，第一闭合器，蓄能器和保持元件。 第一移位器和第一密封器接收相应的带宽控制信号和误差信号。 第一移位器和第一密封器产生经过累加器和保持元件转发和滤波的修正误差信号，以产生功率控制信号。 产生手机射频子系统的功率控制信号可以快速，准确地跟踪发射功率的快速变化。

公开(公告)号：US20120250786A1

公开(公告)日：2012-10-04

申请号：US13493541

申请日：2012-06-11

申请人： Masoud Kahrizi ,  John E. Vasa ,  Darioush Agahi

发明人： Masoud Kahrizi ,  John E. Vasa ,  Darioush Agahi

IPC分类号： H04L27/00

CPC分类号： H04L27/20 ,  H03L7/1974

摘要： A digital modulator for a portable handset using 8PSK or EDGE modulation with a direct launch transmitter is used to controllably adjust the transmit power of the portable handset. The digital modulator includes a controller coupled between a memory and an accumulator. The controller is responsive to an indication that the transmit power should be transitioned. The controller temporarily alters the data transferred from the memory to the accumulator during transitions of the transmit power level.

摘要翻译： 用于使用具有直接发射发射机的8PSK或EDGE调制的便携式手机的数字调制器用于可控地调节便携式手持机的发射功率。 数字调制器包括耦合在存储器和累加器之间的控制器。 控制器响应于应该转换发射功率的指示。 在发射功率电平转换期间，控制器暂时改变从存储器传输到累加器的数据。