公开(公告)号：US09137065B2

公开(公告)日：2015-09-15

申请号：US14132637

申请日：2013-12-18

Applicant: QUALCOMM Incorporated

Inventor： Maxim Gotman ,  Ziv Alina

IPC: H04L27/156 ,  H04L1/00 ,  H04L1/20

CPC classification number: H04L27/156 ,  H04L1/005 ,  H04L1/205

Abstract: Methods, systems, and devices are described for mitigating phase noise. An output of a decoder is utilized to generate an estimation of a plurality of transmitted symbols. One or more phase errors of a plurality of received symbols are generated. The one or more phase errors are based at least in part on the estimation of the plurality of transmitted symbols. The one or more phase errors are generated by comparing angles between the plurality of received symbols and the estimation of the plurality of transmitted symbols. The output of the decoder used to generate the estimation is a plurality of a posteriori log-likelihood ratios (LLRs) of a plurality of transmitted bits. The estimation is generated by performing hard decision decoding on the output of the decoder and remodulating the hard decision decoding according to the modulation used by a transmitter on the plurality of transmitted bits.

Abstract translation: 描述了减轻相位噪声的方法，系统和设备。 利用解码器的输出来生成多个发送符号的估计。 生成多个接收符号的一个或多个相位误差。 一个或多个相位误差至少部分地基于多个发射符号的估计。 通过比较多个接收符号之间的角度和多个发射符号的估计来产生一个或多个相位误差。 用于生成估计的解码器的输出是多个发送比特的多个后验对数似然比（LLR）。 通过对解码器的输出执行硬判决解码并根据发送器在多个发送位上使用的调制来重新调制硬判决解码来产生估计。

公开(公告)号：US09130626B2

公开(公告)日：2015-09-08

申请号：US14226588

申请日：2014-03-26

Applicant: QUALCOMM Incorporated

Inventor： Maxim Gotman ,  Tal Oved

IPC: H03H7/30 ,  H03H7/40 ,  H03K5/159 ,  H04B1/04 ,  H04B7/04 ,  H04L27/01 ,  H04L27/26 ,  H04L27/36 ,  H04L27/38

CPC classification number: H04B1/0475 ,  H04B7/0413 ,  H04L27/01 ,  H04L27/2636 ,  H04L27/364 ,  H04L27/3863

Abstract: Methods, systems, and devices are described for compensating for transmit I/Q impairments in a digital signal. A frequency domain version of a first one of the components may be scaled at a wireless modem according to a frequency dependent I/Q impairment compensation function to obtain a compensated frequency domain version of the first one of the components. The compensated frequency domain version of the first one of the components may be combined with a frequency domain version of a second one of the components at the wireless modem to produce a compensated frequency domain version of the digital signal. The compensated frequency domain version of the digital signal may be transformed to the time domain at the wireless modem to produce a compensated time domain version of the digital signal.

Abstract translation: 描述了用于补偿数字信号中的发射I / Q损伤的方法，系统和装置。 根据频率依赖的I / Q损伤补偿功能，可以在无线调制解调器处对第一个组件的频域版本进行缩放，以获得第一个组件的经补偿的频域版本。 可以将第一组件的经补偿的频域版本与无线调制解调器上的第二组件的频域版本组合，以产生数字信号的经补偿的频域版本。 数字信号的补偿频域版本可以被变换到无线调制解调器的时域，以产生数字信号的经补偿的时域版本。

公开(公告)号：US09118512B2

公开(公告)日：2015-08-25

申请号：US14194346

申请日：2014-02-28

Applicant: QUALCOMM Incorporated

Inventor： Maxim Gotman ,  Tal Oved ,  Josef Waldman

IPC: H04B1/38 ,  H04L5/16 ,  H04L27/01

CPC classification number: H04L27/01 ,  H04L5/0007 ,  H04L25/03038 ,  H04L27/367 ,  H04L27/3863 ,  H04L2025/03471

Abstract: Methods, systems, and apparatuses are described for compensating for impairments of a wireless device. In accordance with a disclosed method, a set of equalizer taps for an analog pipeline of the wireless device is determined. A first set of complex filter taps and a second set of complex filter taps are also determined, by modifying the set of equalizer taps according to an estimated imbalance of the analog pipeline of the wireless device. A signal associated with the analog pipeline is processed with a complex filter according to the first set of complex filter taps and the second set of complex filter taps. The processing provides a combined imbalance compensation and equalization of the signal. The complex filter may include a first complex half-filter associated with the first set of complex filter taps and a second complex half-filter associated with the second set of complex filter taps.

Abstract translation: 描述了用于补偿无线设备的损伤的方法，系统和装置。 根据所公开的方法，确定用于无线设备的模拟流水线的一组均衡器抽头。 还通过根据估计的无线设备的模拟流水线的不平衡修改均衡器抽头的集合来确定第一组复滤波器抽头和第二组复滤波器抽头。 根据第一组复杂滤波器抽头和第二组复杂滤波器抽头，用复数滤波器处理与模拟流水线相关联的信号。 该处理提供了组合的不平衡补偿和信号的均衡。 复杂滤波器可以包括与第一组复数滤波器抽头相关联的第一复数半滤波器和与第二组复数滤波器抽头相关联的第二复数半滤波器。