公开(公告)号：US20150118981A1

公开(公告)日：2015-04-30

申请号：US14261355

申请日：2014-04-24

Applicant: QUALCOMM Incorporated

Inventor： Li GAO ,  Chalin C. LEE ,  Wesley SAMPSON ,  Abhishek AGRAWAL ,  Douglas GROVER ,  Rema VAIDYANATHAN ,  Jarir FADLULLAH ,  Dongbo ZHANG ,  Amit SHAH ,  Ajay IYER

IPC: H04B17/00

CPC classification number: H04B17/14 ,  H04B17/103 ,  H04B17/11 ,  H04B17/19

Abstract: A method and apparatus of internal measurement of voltage standing wave ratio in a transmitter includes providing power to hardware comprising the transmitter, transmitting a signal from the transmitter, sampling the signal in both a transmitted feedforward direction toward an antenna and a reflected direction from the antenna, and computing in a processor associated with the transmitter the voltage standing wave ratio on the basis of the feedforward and reflected sampled signals. A method of calculating a voltage standing wave ratio (VSWR) in a transmitter includes storing, in a memory associated with a processor associated with the transmitter, a captured feedforward signal from the transmitter to an antenna, storing, in the memory, a captured feedback signal reflected from the antenna, and calculating the VSWR in the processor on the basis of the stored transmitted and reflected signals.

Abstract translation: 发射机内部电压驻波比的内部测量方法和装置包括向包括发射机的硬件提供电力，发送来自发射机的信号，将发射的前馈方向的信号从天线采样，以及从天线反射的方向 并且在与发射机相关联的处理器中基于前馈和反射采样信号计算电压驻波比。 计算发射机中的电压驻波比（VSWR）的方法包括：在与发射机相关联的处理器相关联的存储器中存储从发射机到天线的捕获的前馈信号，在存储器中存储捕获的反馈 从天线反射的信号，以及基于存储的发射和反射信号计算处理器中的VSWR。

公开(公告)号：US20150092825A1

公开(公告)日：2015-04-02

申请号：US14303594

申请日：2014-06-12

Applicant: QUALCOMM Incorporated

Inventor： Li GAO ,  Abhishek Kumar AGRAWAL ,  Douglas GROVER ,  Chalin Chac LEE ,  Jarir Muhammad FADLULLAH ,  Dongbo ZHANG ,  Rema VAIDYANATHAN

IPC: H04L1/24

CPC classification number: H04L1/243 ,  H04L1/20

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus correlates the feedback signal to a reference transmit signal to correct time misalignments between the transmit chain and the feedback loop, wherein the reference transmit signal is generated in digital domain at an input to a transmit chain and estimates a transmit signal quality value based on the correlation.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置将反馈信号与参考发射信号相关联，以校正发射链和反馈回路之间的时间不对准，其中参考发射信号在数字域中在发射链的输入处产生，并且基于 相关性。

公开(公告)号：US20240429883A1

公开(公告)日：2024-12-26

申请号：US18340480

申请日：2023-06-23

Applicant: QUALCOMM Incorporated

Inventor： Intae KANG ,  Song TIAN ,  Islam EL BAKOURY ,  Li GAO ,  Hakan INANOGLU

IPC: H03F3/24 ,  H03F1/02 ,  H03F1/32 ,  H03F3/195 ,  H04B1/04

Abstract: Certain aspects of the present disclosure generally relate to electronic components and, more particularly, to radio frequency front-end (RFFE) circuitry. One example apparatus may include a controller configured to: determine a first calibration point and a second calibration point for an amplifier, wherein the first calibration point is associated with a first supply voltage for the amplifier, and wherein the second calibration point is associated with a second supply voltage for the amplifier; and determine an operating point for the amplifier by interpolating based on the first calibration point and the second calibration point, the operating point being associated with a third supply voltage. The apparatus may also include an interface configured to control a power supply to provide the third supply voltage associated with the operating point for the amplifier.

公开(公告)号：US20140292403A1

公开(公告)日：2014-10-02

申请号：US14154022

申请日：2014-01-13

Applicant: QUALCOMM Incorporated

Inventor： Qijia LIU ,  Jifeng GENG ,  Daniel Fred FILIPOVIC ,  Li GAO

IPC: H03F1/32

CPC classification number: H03F1/3241 ,  H03F1/30 ,  H03F1/3247 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/111 ,  H03F2200/336 ,  H03F2200/447 ,  H03F2201/3233 ,  H04L27/368

Abstract: Exemplary embodiments are related to power amplifier power level compensation in a pre-distortion system. A method may include applying digital pre-distortion (DPD) of a power amplifier at a frequency channel, a fixed input power value, and a fixed temperature. The method may also include determining an optimal input power value for the power amplifier in response to a change in at least one of frequency and temperature.

Abstract translation: 示例性实施例涉及预失真系统中的功率放大器功率电平补偿。 方法可以包括在频率信道，固定输入功率值和固定温度下应用功率放大器的数字预失真（DPD）。 该方法还可以包括响应于频率和温度中的至少一个的变化来确定功率放大器的最佳输入功率值。