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1. 发明授权

US08750417B2 Mobile wireless communications device with separate in-phase (I) and quadrature (Q) phase power amplification and power amplifier pre-distortion and IQ balance compensation 有权
标题翻译：移动无线通信设备具有单相同相（I）和正交（Q）相功率放大和功率放大器预失真和IQ平衡补偿
公开(公告)号：US08750417B2
公开(公告)日：2014-06-10
申请号：US13956408
申请日：2013-08-01
申请人： Blackberry Limited
发明人： Lizhong Zhu , George Soliman Mankaruse , Michael Stephen Corrigan , Perry Jarmuszewski , Oleksiy Kravets , Kent Arnold Nickerson , Nagula Tharma Sangary
IPC分类号： H04L25/49
CPC分类号： H04L1/0035 , H04L27/2089 , H04L27/364 , H04L27/367
摘要： A communications device, in one aspect as a portable wireless communications device, includes an in-phase modulator and power amplifier that receives a baseband I signal and modulates and amplifies the I signal. A quadrature modulator and power amplifier receives a baseband Q signal and modulates and amplifies the Q signal. A power combiner sums and outputs the I and Q signals. An I demodulator circuit receives a signal fed back from the I power amplifier and demodulates the fed back signal to produce demodulated I signals. A Q demodulator circuit receives a signal fed back from the Q power amplifier and demodulates the fed back signal to produce demodulated Q signals. A processor compares the digital, baseband I and Q signals with a demodulated I and Q signals to compensate for amplitude, frequency and phase modulation errors.
摘要翻译：在一方面，作为便携式无线通信设备的通信设备包括接收基带I信号并调制和放大I信号的同相调制器和功率放大器。正交调制器和功率放大器接收基带Q信号并调制和放大Q信号。功率组合器对I和Q信号进行求和并输出。 I解调器电路接收从I功率放大器反馈的信号并解调反馈信号以产生解调的I信号。 Q解调器电路接收从Q功率放大器反馈的信号，并且对反馈信号进行解调以产生解调的Q信号。处理器将数字，基带I和Q信号与解调的I和Q信号进行比较，以补偿幅度，频率和相位调制误差。

2. 发明授权

US09191250B2 Extended bandwidth adaptive digital pre-distortion with reconfigurable analog front-ends 有权
标题翻译：具有可重构模拟前端的扩展带宽自适应数字预失真
公开(公告)号：US09191250B2
公开(公告)日：2015-11-17
申请号：US14090092
申请日：2013-11-26
申请人： BlackBerry Limited
发明人： Mohammad Omer , Stephen Arnold Devison , Hamed Holisaz , Oleksiy Kravets
IPC分类号： H04L25/08 , H04L27/36 , H04B17/13 , H03F1/32 , H03F3/19 , H03F3/24 , H04L25/03 , H04B1/04
CPC分类号： H04L25/08 , H03F1/3241 , H03F1/3258 , H03F3/19 , H03F3/245 , H03F2200/165 , H03F2200/451 , H03F2201/3215 , H04B17/13 , H04B2001/0425 , H04L25/03159 , H04L25/03343 , H04L27/368
摘要： A pre-distortion method. A signal to be transmitted Tx is pre-distorted to compensate for nonlinearities of a transmitter. The pre-distorted signal is filtered by an EBEE filter and a baseband filter. The EBEE filter has a filter characteristic of that cancels the baseband filter response over the range of frequencies from a first corner frequency of the baseband filter to a frequency of N*fB where N is a highest order of distortion component being cancelled and fB is the bandwidth of the original signal to be transmitted. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
摘要翻译：一种预失真方法。要发送的信号Tx被预失真以补偿发射机的非线性。预失真信号由EBEE滤波器和基带滤波器滤波。 EBEE滤波器具有这样的滤波器特性，其消除了从基带滤波器的第一转角频率到N * fB频率的频率范围内的基带滤波器响应，其中N是失真分量的最高阶消除，fB是要发送的原始信号的带宽。该摘要不被认为是限制性的，因为其他实施例可能偏离本摘要中描述的特征。

3. 发明申请

US20130315345A1 MOBILE WIRELESS COMMUNICATIONS DEVICE WITH SEPARATE IN-PHASE (I) AND QUADRATURE (Q) PHASE POWER AMPLIFICATION AND POWER AMPLIFIER PRE-DISTORTION AND IQ BALANCE COMPENSATION 有权
标题翻译：移动无线通信设备，具有单相（I）和三相（Q）相功率放大和功率放大器预失真和IQ平衡补偿
公开(公告)号：US20130315345A1
公开(公告)日：2013-11-28
申请号：US13956408
申请日：2013-08-01
申请人： BLACKBERRY LIMITED
发明人： Lizhong Zhu , George Soliman Mankaruse , Michael Stephen Corrigan , Perry Jarmuszewski , Oleksiy Kravets , Kent Arnold Nickerson , Nagula Tharma Sangary
IPC分类号： H04L1/00
CPC分类号： H04L1/0035 , H04L27/2089 , H04L27/364 , H04L27/367
摘要： A communications device, in one aspect as a portable wireless communications device, includes an in-phase modulator and power amplifier that receives a baseband I signal and modulates and amplifies the I signal. A quadrature modulator and power amplifier receives a baseband Q signal and modulates and amplifies the Q signal. A power combiner sums and outputs the I and Q signals. An I demodulator circuit receives a signal fed back from the I power amplifier and demodulates the fed back signal to produce demodulated I signals. A Q demodulator circuit receives a signal fed back from the Q power amplifier and demodulates the fed back signal to produce demodulated Q signals. A processor compares the digital, baseband I and Q signals with a demodulated I and Q signals to compensate for amplitude, frequency and phase modulation errors.
摘要翻译：在一方面，作为便携式无线通信设备的通信设备包括接收基带I信号并调制和放大I信号的同相调制器和功率放大器。正交调制器和功率放大器接收基带Q信号并调制和放大Q信号。功率组合器对I和Q信号进行求和并输出。 I解调器电路接收从I功率放大器反馈的信号并解调反馈信号以产生解调的I信号。 Q解调器电路接收从Q功率放大器反馈的信号，并且对反馈信号进行解调以产生解调的Q信号。处理器将数字，基带I和Q信号与解调的I和Q信号进行比较，以补偿幅度，频率和相位调制误差。

4. 发明授权

US09190963B2 System and method for fast polynomial pre-distortion 有权
标题翻译：用于快速多项式预失真的系统和方法
公开(公告)号：US09190963B2
公开(公告)日：2015-11-17
申请号：US13973397
申请日：2013-08-22
申请人： BlackBerry Limited
发明人： Mohammad Omer , Oleksiy Kravets , Stephen Arnold Devison
IPC分类号： H03F1/26 , H03F1/32 , H03F3/189 , H03F3/24
CPC分类号： H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/245
摘要： A system and method of pre-distorting a signal applied to a power amplifier to compensate for distortion introduced by the power amplifier at different power settings, comprising pre-distorting the signal according to a pre-distortion polynomial, prior to amplification of the signal by the power amplifier; adaptively estimating and applying pre-distortion polynomial coefficients to the pre-distorter by saving successive iterations of adaptive estimation of the pre-distortion polynomial coefficients; and regularizing estimation of the pre-distortion polynomial coefficients over successive iterations according to a modified objective function that initially constrains growth in the magnitude of the pre-distortion polynomial coefficients and then relaxes the constraint in growth over successive iterations until estimation is reduced to a steady-state least squares estimation.
摘要翻译：一种系统和方法，用于对施加到功率放大器的信号进行预失真以补偿功率放大器在不同功率设置下引入的失真，包括在信号放大之前根据预失真多项式预失真信号，功率放大器; 通过保存预失真多项式系数的自适应估计的连续迭代来自适应地估计并将预失真多项式系数应用于预失真器; 并且根据修改后的目标函数对预失真多项式系数的预失真多项式系数进行正则化，该修正的目标函数最初限制预失真多项式系数的大小的增长，然后在连续迭代中松弛增长中的约束，直到估计被减少到稳定状态最小二乘估计。

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