公开(公告)号：US09413400B1

公开(公告)日：2016-08-09

申请号：US14700552

申请日：2015-04-30

Applicant: QUALCOMM Incorporated

Inventor： Hajir Hedayati ,  Vladimir Aparin

IPC: H04B1/10 ,  H04L25/03

CPC classification number: H04B1/1027 ,  H04B1/109 ,  H04B1/525 ,  H04B15/06 ,  H04B2001/1072 ,  H04L25/03159

Abstract: A method, an apparatus, and system for filtering a signal in a carrier aggregation system are provided. The apparatus processes carriers via at least two respective paths. Each path receives, via a transconducting module, an input signal and generates a current signal based on the input signal, shifts, via a mixing module, a frequency of the current signal by mixing the current signal with a local oscillating signal corresponding to a respective path, and generates, via an amplifying module, an output voltage signal based on the frequency-shifted signal and a response of the respective path. The apparatus attenuates, via a filtering module, a jamming signal in the input signal to produce responses for the at least two paths, respectively. A response for the respective path has a maximum input impedance at a frequency of the local oscillating signal corresponding to the respective path.

Abstract translation: 提供了一种用于对载波聚合系统中的信号进行滤波的方法，装置和系统。 该装置经由至少两个相应路径处理载体。 每个路径通过跨导模块接收输入信号，并且基于输入信号产生电流信号，通过混合模块将电流信号与对应于相应的电流信号的本地振荡信号进行混合，来移动当前信号的频率 并且通过放大模块产生基于频移信号的输出电压信号和相应路径的响应。 该装置通过滤波模块衰减输入信号中的干扰信号，以分别产生至少两条路径的响应。 对于相应路径的响应在对应于相应路径的本地振荡信号的频率处具有最大输入阻抗。

公开(公告)号：US08942314B2

公开(公告)日：2015-01-27

申请号：US13828861

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Vladimir Aparin

IPC: H04K1/02 ,  H04B1/04

CPC classification number: H04B1/0475 ,  H04B1/525 ,  H04B15/04 ,  H04B15/06

Abstract: A method for Tx interference cancellation and power detection in a wireless device is described. A portion of a Tx output signal is down-converted to generate a feedback signal. A reconstructed interference signal and a weight are generated based on the feedback signal. A Tx power level is detected based on the weight. The reconstructed interference signal is subtracted from the Tx output signal.

Abstract translation: 描述了无线设备中的Tx干扰消除和功率检测的方法。 Tx输出信号的一部分被下变频以产生反馈信号。 基于反馈信号产生重建的干扰信号和权重。 基于权重检测Tx功率电平。 从Tx输出信号中减去重建的干扰信号。

公开(公告)号：US08938023B2

公开(公告)日：2015-01-20

申请号：US13828574

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Vladimir Aparin

IPC: H04L27/00 ,  H04L27/38

CPC classification number: H04L27/0002 ,  H04L27/38

Abstract: A wireless device for interfacing between a transceiver and a modem is described. The wireless device includes the transceiver. The transceiver generates a combined signal. The combined signal includes a first signal band from a first received signal and a second signal band from a second received signal at offset frequencies. The wireless device includes an analog baseband interface for providing the combined signal from the transceiver to the modem. The wireless device also includes the modem. The modem generates a downconverted/filtered signal for each of the signal bands of the combined signal.

Abstract translation: 描述了用于在收发器和调制解调器之间进行接口的无线设备。 无线设备包括收发器。 收发器产生一个组合信号。 组合信号包括来自第一接收信号的第一信号频带和来自偏移频率处的第二接收信号的第二信号频带。 无线设备包括用于将来自收发器的组合信号提供给调制解调器的模拟基带接口。 无线设备还包括调制解调器。 调制解调器为组合信号的每个信号频带生成下变频/滤波信号。

公开(公告)号：US20140269865A1

公开(公告)日：2014-09-18

申请号：US13828574

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Vladimir Aparin

IPC: H04L27/00

CPC classification number: H04L27/0002 ,  H04L27/38

Abstract: A wireless device for interfacing between a transceiver and a modem is described. The wireless device includes the transceiver. The transceiver generates a combined signal. The combined signal includes a first signal band from a first received signal and a second signal band from a second received signal at offset frequencies. The wireless device includes an analog baseband interface for providing the combined signal from the transceiver to the modem. The wireless device also includes the modem. The modem generates a downconverted/filtered signal for each of the signal bands of the combined signal.

Abstract translation: 描述了用于在收发器和调制解调器之间进行接口的无线设备。 无线设备包括收发器。 收发器产生一个组合信号。 组合信号包括来自第一接收信号的第一信号频带和来自偏移频率处的第二接收信号的第二信号频带。 无线设备包括用于将来自收发器的组合信号提供给调制解调器的模拟基带接口。 无线设备还包括调制解调器。 调制解调器为组合信号的每个信号频带生成下变频/滤波信号。

公开(公告)号：US20140247757A1

公开(公告)日：2014-09-04

申请号：US13782366

申请日：2013-03-01

Applicant: QUALCOMM INCORPORATED

Inventor： Roberto Rimini ,  Cong T. Nguyen ,  Peter D. Heidmann ,  Joseph Patrick Burke ,  Vladimir Aparin

IPC: H04B1/44

CPC classification number: H04B1/44 ,  H04B1/525

Abstract: Exemplary embodiments are directed to systems, devices, and methods for mitigating effects of transmit signal leakage. A transceiver may include a transmitter and a receiver. The transceiver may further include a multi-tap analog adaptive filter coupled to each of the transmitter and the receiver and configured to generate an estimated transmit leakage signal based on at least a portion of a transmit signal from the transmitter and an error signal from the receiver.

Abstract translation: 示例性实施例涉及用于减轻发射信号泄漏的影响的系统，设备和方法。 收发机可以包括发射机和接收机。 收发器还可以包括耦合到发射机和接收机中的每一个的多抽头模拟自适应滤波器，并被配置为基于来自发射机的发射信号的至少一部分和来自接收机的误差信号来产生估计的发射泄漏信号 。