公开(公告)号：US08335514B2

公开(公告)日：2012-12-18

申请号：US13411827

申请日：2012-03-05

申请人： Thomas Quigley ,  Alexander G. MacInnis ,  Arya Behzad ,  Jeyhan Karaoguz ,  John Walley ,  Mark Buer

发明人： Thomas Quigley ,  Alexander G. MacInnis ,  Arya Behzad ,  Jeyhan Karaoguz ,  John Walley ,  Mark Buer

IPC分类号： H04W72/00

CPC分类号： G06F9/5011 ,  G06F1/329 ,  G06F9/5027 ,  G06F9/5044 ,  G06F9/505 ,  G06F9/5094 ,  G06F2209/5017 ,  H04L67/04 ,  H04L67/10 ,  Y02D10/22

摘要： Dynamically splitting jobs in wireless system between agnostic processor may comprise evaluating a job that a wireless mobile communication device may be requested to perform. The wireless mobile communication (WMC) device may evaluate a requested job to determine if one or more tasks may be sent to a remote device. The WMC device may consider such factors as information pertaining to the WMC device itself, information relating to the connection between the devices, and/or information pertaining to the remote device. This information may comprise such data as power availability in the wireless mobile communication device, processing load in the WMC device, processing and/or storage capabilities of the remote device, and characteristics of the connectivity between the two devices.

摘要翻译： 在不可知处理器之间的无线系统中的动态分割作业可以包括评估无线移动通信设备可能被请求执行的作业。 无线移动通信（WMC）设备可以评估所请求的作业以确定是否可以将一个或多个任务发送到远程设备。 WMC设备可以考虑诸如与WMC设备本身有关的信息，与设备之间的连接有关的信息和/或与远程设备有关的信息等因素。 该信息可以包括无线移动通信设备中的功率可用性，WMC设备中的处理负载，远程设备的处理和/或存储能力以及两个设备之间的连接特性等数据。

公开(公告)号：US20120236912A1

公开(公告)日：2012-09-20

申请号：US13484474

申请日：2012-05-31

申请人： Arya Behzad ,  Ali Afsahi ,  Vikram Magoon ,  Mark Gonikberg ,  George Varghese ,  Guruprasad Revanna

发明人： Arya Behzad ,  Ali Afsahi ,  Vikram Magoon ,  Mark Gonikberg ,  George Varghese ,  Guruprasad Revanna

IPC分类号： H04B1/44

CPC分类号： H03F1/3247 ,  H03F1/3294 ,  H03F2200/336 ,  H03F2200/451 ,  H04L27/368

摘要： Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration are presented. Aspects of the system may include an RF transmitter that enables generation of an RF output signal in response to one or more generated input signals. One or more feedback signals may be generated by performing frequency downconversion on the RF output signal within a corresponding one or more feedback mixer circuits. The generated one or more feedback signals may be inserted at a corresponding one or more insertion points in an RF receiver. Each insertion point may be between a receiver mixer circuit and corresponding circuits that generate a baseband signal based on the corresponding one of the feedback signals.

摘要翻译： 提出了通过利用具有正交反馈混频器配置的数字预失真方案来补偿发射机中的估计失真的方法和系统的方面。 系统的方面可以包括RF发射器，其能够响应于一个或多个所生成的输入信号而产生RF输出信号。 可以通过对相应的一个或多个反馈混频器电路中的RF输出信号执行频率下变频来产生一个或多个反馈信号。 所生成的一个或多个反馈信号可以插入RF接收器中相应的一个或多个插入点。 每个插入点可以在接收机混合器电路和基于相应的一个反馈信号产生基带信号的相应电路之间。

公开(公告)号：US20120230375A1

公开(公告)日：2012-09-13

申请号：US13478918

申请日：2012-05-23

申请人： Arya Behzad ,  Ali Afashi ,  Vikram Magoon

发明人： Arya Behzad ,  Ali Afashi ,  Vikram Magoon

IPC分类号： H04B1/38

CPC分类号： H03F1/3247 ,  H03F1/3294 ,  H03F2200/336 ,  H03F2200/57 ,  H04L27/368

摘要： Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a single feedback mixer are presented. Aspects of the system may include at least one circuit that enables generation of an output signal in response to one or more generated input signals. A feedback signal may be generated within a single feedback mixer circuit that may perform a frequency mix-down operation on the generated output signal. The generated feedback signal may be inserted at one or more insertion points in a receiver. Each of the insertion points may be located between a mixer stage of the receiver, and one or more circuits that generate a baseband signal based on the generated feedback signal.

摘要翻译： 提出了通过利用具有单个反馈混频器的数字预失真方案来补偿发射机中的估计失真的方法和系统的方面。 该系统的方面可以包括响应于一个或多个所生成的输入信号而能够产生输出信号的至少一个电路。 可以在可以对所生成的输出信号执行频率混合运算的单个反馈混频器电路内产生反馈信号。 产生的反馈信号可以插入接收器中的一个或多个插入点。 每个插入点可以位于接收器的混合器级之间，以及基于产生的反馈信号产生基带信号的一个或多个电路。

公开(公告)号：US20120224618A1

公开(公告)日：2012-09-06

申请号：US13471651

申请日：2012-05-15

申请人： Arya Behzad ,  Ali Afsahi ,  Mark Gonikberg

发明人： Arya Behzad ,  Ali Afsahi ,  Mark Gonikberg

IPC分类号： H04B17/00 ,  H04B1/06

CPC分类号： H04B7/0811

摘要： A method for processing signals in a receiver includes receiving a plurality of wireless signals via a plurality of M receive antennas coupled to M corresponding signal amplifiers. The method may also include measuring corresponding signal strengths of M signals generated when each of M phase-shifters is coupled to each of the M receive antennas, while one or more of the M signal amplifiers are disabled. One of the M generated signals may be selected for processing without the use of an antenna switch, where the selecting may be based on the measured signal strength. Each of the plurality of received wireless signals may be amplified prior to the measuring. One or both of an in-phase (I) component and/or a quadrature (Q) component may be generated for each of the M generated signals.

摘要翻译： 用于在接收机中处理信号的方法包括经由耦合到M个相应信号放大器的多个M个接收天线接收多个无线信号。 该方法还可以包括当M个移相器中的每一个耦合到M个接收天线中的每一个时产生的M个信号的相应信号强度，而一个或多个M个信号放大器被禁用。 可以选择M个生成的信号中的一个用于处理而不使用天线开关，其中选择可以基于测量的信号强度。 多个接收的无线信号中的每一个可以在测量之前被放大。 可以为M个生成的信号中的每一个产生同相（I）分量和/或正交（Q）分量中的一个或两个。

公开(公告)号：US20120202562A1

公开(公告)日：2012-08-09

申请号：US13451914

申请日：2012-04-20

申请人： Ahmadreza Rofougaran ,  Arya Behzad

发明人： Ahmadreza Rofougaran ,  Arya Behzad

IPC分类号： H04W88/02 ,  H04M1/00

CPC分类号： H04W88/06 ,  H04W72/1215

摘要： A system and method providing concurrent multimode communication through multimode signal multiplexing. Various aspects of the present invention may comprise, during a first time period, transmitting a first portion of a first communication in a first communication mode in a serial wireless transmission stream. During a second time period after the first time period, a first portion of a second communication may be transmitted in a second communication mode in the serial wireless transmission stream. Also, during a third time period after the second time period, a second portion of the first communication may be transmitted in the first communication mode in the serial wireless transmission stream. In an exemplary scenario, prior to communicating various communications, transmission time may be allocated between the first and second communication modes. In another exemplary scenario, transmission may be switched between a plurality of communication modes in response to detected communication conditions.

摘要翻译： 一种通过多模信号复用提供并发多模通信的系统和方法。 在第一时间段期间，本发明的各个方面可以包括在串行无线传输流中以第一通信模式发送第一通信的第一部分。 在第一时间段之后的第二时间段期间，可以在串行无线传输流中以第二通信模式发送第二通信的第一部分。 此外，在第二时间段之后的第三时间段期间，可以在串行无线传输流中以第一通信模式发送第一通信的第二部分。 在示例性场景中，在传送各种通信之前，可以在第一和第二通信模式之间分配传输时间。 在另一示例性场景中，响应于检测到的通信条件，可以在多个通信模式之间切换传输。

公开(公告)号：US08073080B2

公开(公告)日：2011-12-06

申请号：US11618720

申请日：2006-12-29

申请人： Qiang Li ,  Razieh Roufoogaran ,  Keith Carter ,  Arya Behzad

发明人： Qiang Li ,  Razieh Roufoogaran ,  Keith Carter ,  Arya Behzad

IPC分类号： H03D3/00 ,  H04L27/22

CPC分类号： H03D3/009

摘要： Certain aspects of a method and system for RC-CR quadrature generation with wideband coverage and process compensation may include determining an amplitude mismatch between an in-phase (I) component and a quadrature (Q) component of a signal generated in a radio frequency (RF) transmitter or receiver. A variation in resistance of a quadrature network associated with the I component and Q component may be determined. The determined amplitude mismatch and the determined variation in the resistance of the quadrature network may be compensated by adjusting a resistance of a portion of the quadrature network associated with the I component and a resistance of a portion of the quadrature network associated with the Q component.

摘要翻译： 用于具有宽带覆盖和过程补偿的RC-CR正交生成的方法和系统的某些方面可以包括确定在射频中产生的信号的同相（I）分量和正交（Q）分量之间的幅度失配（ RF）发射机或接收机。 可以确定与I分量和Q分量相关联的正交网络的电阻变化。 确定的幅度失配和确定的正交网络的电阻的变化可以通过调整与I分量相关联的正交网络的一部分的电阻和与Q分量相关联的正交网络的一部分的电阻来补偿。

公开(公告)号：US07868696B2

公开(公告)日：2011-01-11

申请号：US12724182

申请日：2010-03-15

申请人： Arya Behzad ,  Ali Afashi ,  Vikram Magoon

发明人： Arya Behzad ,  Ali Afashi ,  Vikram Magoon

IPC分类号： H93G3/10

CPC分类号： H03F1/3247 ,  H03F1/3211 ,  H03F1/3241 ,  H03F1/3294 ,  H03F3/45188 ,  H03F2200/102 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2203/45112 ,  H03F2203/45244 ,  H03F2203/45292 ,  H03F2203/45554 ,  H04B2001/0425

摘要： Aspects of a method and system for a highly efficient power amplifier (PA) utilizing dynamic biasing and predistortion are presented. Aspects of the system may include a processor that enables computation of a value of a variable bias component of a bias current based on a bias slope value and an amplitude of an envelope input signal. The processor may enable computation of a value of the bias current based on the selected constant bias current component value and the variable bias current component value. A PA may enable generation of an output signal in response to a generated baseband signal by utilizing the bias current to amplify an amplifier input signal. The bias current may be generated based on the envelope input signal. A feedback signal may be generated based on the output signal, which may be used to predistort a subsequent baseband signal.

摘要翻译： 提出了一种利用动态偏置和预失真的高效功率放大器（PA）的方法和系统。 该系统的方面可以包括能够基于偏置斜率值和包络输入信号的幅度来计算偏置电流的可变偏置分量的值的处理器。 该处理器可以使得能够基于所选择的恒定偏置电流分量值和可变偏置电流分量值来计算偏置电流的值。 PA可以通过利用偏置电流来放大放大器输入信号，从而能够响应于产生的基带信号而产生输出信号。 可以基于包络输入信号产生偏置电流。 可以基于输出信号来生成反馈信号，该输出信号可以用于对随后的基带信号进行预失真。

公开(公告)号：US07856215B2

公开(公告)日：2010-12-21

申请号：US11618808

申请日：2006-12-30

申请人： Arya Behzad ,  Ali Afsahi ,  Mark Gonikberg

发明人： Arya Behzad ,  Ali Afsahi ,  Mark Gonikberg

IPC分类号： H04B17/00 ,  H04B17/02 ,  H04B1/06 ,  H04B7/00

CPC分类号： H04B7/0811

摘要： Aspects of a method and system for signal processing are disclosed and may include receiving a plurality of wireless signals via a plurality of M receive antennas. Each of M phase shifters coupled to each of the M receive antennas may be set to operate in a bypass mode or with an arbitrary phase setting. Corresponding signal strengths of M signals generated when each of the M phase-shifters is coupled to each of the M receive antennas may be measured, while at least a portion of the M receive antennas are turned off. Selecting one of the M generated signals for processing without the use of an antenna switch, based on the measured signal strength. A signal strength of each of the generated M amplified signals may be measured while turning off at least one of the plurality of M receive antennas and without the use of the phase-shifters.

摘要翻译： 公开了用于信号处理的方法和系统的方面，并且可以包括经由多个M个接收天线接收多个无线信号。 耦合到M个接收天线中的每一个的M个移相器中的每一个可以被设置为以旁路模式或任意相位设置操作。 当M个接收天线的至少一部分被关闭时，可以测量当每个M个移相器耦合到每个M个接收天线时产生的M个信号的相应信号强度。 基于测量的信号强度，选择M个生成的信号之一进行处理而不使用天线开关。 可以在断开多个M个接收天线中的至少一个并且不使用移相器的同时测量所产生的M个放大信号中的每一个的信号强度。

公开(公告)号：US07538610B2

公开(公告)日：2009-05-26

申请号：US11618864

申请日：2006-12-31

申请人： Vikram Magoon ,  Ali Afashi ,  Arya Behzad

发明人： Vikram Magoon ,  Ali Afashi ,  Arya Behzad

IPC分类号： H03G3/20

CPC分类号： H03G3/3042

摘要： Aspects of a method and system for enhancement of power amplifier (PA) efficiency through controlled variation of gain in a power amplifier driver are presented. Aspects of the system may comprise an envelope detector that enables detection of an amplitude of an analog input signal. The envelope detector may enable computation of a first gain value based on the detection. A second gain value may be computed based on the first gain value. A PA may enable generation of an analog output signal based on the analog input signal, the first gain value and the second gain value.

摘要翻译： 提出了通过功率放大器驱动器中的增益控制变化来增强功率放大器（PA）效率的方法和系统的方面。 系统的方面可以包括能够检测模拟输入信号的幅度的包络检测器。 包络检测器可以使得能够基于检测来计算第一增益值。 可以基于第一增益值来计算第二增益值。 PA可以基于模拟输入信号，第一增益值和第二增益值来实现模拟输出信号的产生。

公开(公告)号：US07492223B2

公开(公告)日：2009-02-17

申请号：US11618877

申请日：2006-12-31

申请人： Arya Behzad ,  Ali Afsahi ,  Vikram Magoon

发明人： Arya Behzad ,  Ali Afsahi ,  Vikram Magoon

IPC分类号： H03G3/20

CPC分类号： H03F1/3247 ,  H03F1/3211 ,  H03F1/3241 ,  H03F1/3294 ,  H03F3/45188 ,  H03F2200/102 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2203/45112 ,  H03F2203/45244 ,  H03F2203/45292 ,  H03F2203/45554 ,  H04B2001/0425

摘要： Aspects of a method and system for a highly efficient power amplifier (PA) utilizing dynamic biasing and predistortion are presented. Aspects of the system may include a processor that enables computation of a value of a variable bias component of a bias current based on a bias slope value and an amplitude of an envelope input signal. The processor may enable computation of a value of the bias current based on the selected constant bias current component value and the variable bias current component value. A PA may enable generation of an output signal in response to a generated baseband signal by utilizing the bias current to amplify an amplifier input signal. The bias current may be generated based on the envelope input signal. A feedback signal may be generated based on the output signal, which may be used to predistort a subsequent baseband signal.

摘要翻译： 提出了一种利用动态偏置和预失真的高效功率放大器（PA）的方法和系统。 该系统的方面可以包括能够基于偏置斜率值和包络输入信号的幅度来计算偏置电流的可变偏置分量的值的处理器。 该处理器可以使得能够基于所选择的恒定偏置电流分量值和可变偏置电流分量值来计算偏置电流的值。 PA可以通过利用偏置电流来放大放大器输入信号，从而能够响应于产生的基带信号而产生输出信号。 可以基于包络输入信号产生偏置电流。 可以基于输出信号来生成反馈信号，该输出信号可以用于对随后的基带信号进行预失真。