公开(公告)号：WO2011100622A1

公开(公告)日：2011-08-18

申请号：PCT/US2011/024638

申请日：2011-02-11

Applicant: QUALCOMM Incorporated ,  LEE, Heechoon ,  SAMBHWANI, Sharad Deepak ,  SAMPSON, Wesley A. ,  SIMON, Harris S. ,  CHELLAPPA, Vijay K. ,  ZHANG, Danlu

Inventor： LEE, Heechoon ,  SAMBHWANI, Sharad Deepak ,  SAMPSON, Wesley A. ,  SIMON, Harris S. ,  CHELLAPPA, Vijay K. ,  ZHANG, Danlu

IPC: H04W52/14 ,  H04W52/28 ,  H04W52/16 ,  H04W52/22

CPC classification number: H04W52/146 ,  H04W52/16 ,  H04W52/228 ,  H04W52/286

Abstract: A wireless communication device includes: an antenna for receiving inbound signals on dual receive channels and transmitting outbound signals on dual transmit channels; a transceiver coupled to the antenna to receive the inbound signals from the antenna and convey the outbound signals; a power controller coupled to the transceiver to control power levels of the outbound signals so a maximum nominal power level of the outbound signals is a first power level; and a processor coupled to the transceiver and the antenna to cause the power controller to control the power levels of the outbound signals so if a power level of a received one of the inbound signals is below a threshold value, then the maximum nominal power level of the outbound signals is a second power level lower than the first power level, wherein the second power level is lower than the first power level.

Abstract translation: 无线通信装置包括：用于在双重接收信道上接收入站信号并在双发送信道上发送出站信号的天线; 耦合到天线的收发器，用于接收来自天线的入站信号并传送出站信号; 功率控制器，耦合到收发器以控制出站信号的功率电平，使得出站信号的最大额定功率电平是第一功率电平; 以及处理器，其耦合到所述收发器和所述天线，以使所述功率控制器控制所述出站信号的功率电平，从而如果所述入站信号中的一个的功率电平低于阈值，则所述最大额定功率电平 出站信号是低于第一功率电平的第二功率电平，其中第二功率电平低于第一功率电平。

公开(公告)号：WO2014100048A1

公开(公告)日：2014-06-26

申请号：PCT/US2013/075882

申请日：2013-12-17

Applicant: QUALCOMM INCORPORATED

Inventor： FERNANDO, Udara C. ,  CHANG, Li-Chung ,  CHELLAPPA, Vijay K. ,  BOSSU, Frederic ,  HUMNABADKAR, Ketan ,  SAHOTA, Gurkanwal Singh

IPC: H04B17/00

CPC classification number: H04B17/21

Abstract: Techniques for calibrating a receiver based on a local oscillator (LO) signal from another receiver are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes first and second local oscillator (LO) generators. The first LO generator generates a first LO signal used by a first receiver for frequency downconversion. The second LO generator generates a second LO signal used by a second receiver for frequency downconversion in a first operating mode. The second LO signal is used to generate a test signal for the first receiver in a second operating mode. The second LO signal may be provided as the test signal or may be amplitude modulated with a modulating signal to generate the test signal. The test signal may be used to calibrate residual sideband (RSB), second order input intercept point (IIP2), receive path gain, etc.

Abstract translation: 公开了基于来自另一接收机的本地振荡器（LO）信号来校准接收机的技术。 在示例性设计中，装置（例如，无线装置或集成电路）包括第一和第二本地振荡器（LO）发生器。 第一LO发生器产生用于频率下变频的第一接收机使用的第一LO信号。 第二LO发生器在第一操作模式中产生由第二接收机用于频率下变频的第二LO信号。 第二LO信号用于在第二操作模式下为第一接收机生成测试信号。 第二LO信号可以作为测试信号提供，或者可以用调制信号进行幅度调制以产生测试信号。 测试信号可用于校准残余边带（RSB），二阶输入截点（IIP2），接收路径增益等。

公开(公告)号：WO2012170944A3

公开(公告)日：2012-12-13

申请号：PCT/US2012/041742

申请日：2012-06-08

Applicant: QUALCOMM INCORPORATED ,  CHEN, Mei ,  CHELLAPPA, Vijay K. ,  VERMA, Sumit ,  HUMNABADKAR, Ketan ,  NATARAJAKUMAR, Bhaskar ,  HARDIN, Carl T.

Inventor： CHEN, Mei ,  CHELLAPPA, Vijay K. ,  VERMA, Sumit ,  HUMNABADKAR, Ketan ,  NATARAJAKUMAR, Bhaskar ,  HARDIN, Carl T.

IPC: G06F1/32

Abstract: A wireless communication device for deriving a dynamic voltage scaling data profile is described. The wireless communication device includes memory that includes a dynamic voltage scaling voice profile. The wireless communication device also includes a data profile determination module coupled to the memory. The data profile determination module obtains an offset and derives a dynamic voltage scaling data profile by offsetting the dynamic voltage scaling voice profile based on the offset.

公开(公告)号：WO2013040505A1

公开(公告)日：2013-03-21

申请号：PCT/US2012/055642

申请日：2012-09-14

Applicant: QUALCOMM INCORPORATED ,  KOMNINAKIS, Christos ,  CHELLAPPA, Vijay K. ,  GENG, Jifeng

Inventor： KOMNINAKIS, Christos ,  CHELLAPPA, Vijay K. ,  GENG, Jifeng

IPC: H03F1/02 ,  H03F1/32 ,  H03F3/24

CPC classification number: H03F1/3241 ,  H03F1/0244 ,  H03F1/0266 ,  H03F1/0272 ,  H03F1/3247 ,  H03F3/24 ,  H03F2200/321 ,  H03F2201/3233 ,  H04B2001/0408 ,  H04L25/03343

Abstract: Circuitry (102) for reducing power consumption is described. The circuitry (102) includes a power amplifier (110). The circuitry (102) also includes a predistorter (106) coupled to the power amplifier (110). The circuitry (102) further includes a power supply (116) coupled to the power amplifier (110). The circuitry (102) additionally includes a controller (122) coupled to the power amplifier (110), to the predistorter (106) and to the power supply (116). The controller (122) captures a transmit signal (104b) and a feedback signal (112) concurrently and determines a minimum bias voltage from a set of voltages and a predistortion that enable the power amplifier (110) to produce an amplified transmit signal (108) in accordance with a requirement.

Abstract translation: 描述了用于降低功耗的电路（102）。 电路（102）包括功率放大器（110）。 电路（102）还包括耦合到功率放大器（110）的预失真器（106）。 电路（102）还包括耦合到功率放大器（110）的电源（116）。 电路（102）还包括耦合到功率放大器（110），预失真器（106）和电源（116）的控制器（122）。 控制器（122）同时捕获发射信号（104b）和反馈信号（112），并从一组电压和预失真确定最小偏置电压，使得功率放大器（110）能够产生放大的发射信号（108 ）根据要求。

公开(公告)号：WO2012122545A1

公开(公告)日：2012-09-13

申请号：PCT/US2012/028641

申请日：2012-03-09

Applicant: QUALCOMM INCORPORATED ,  PANIKKATH, Vinod V. ,  CHELLAPPA, Vijay K. ,  ASURI, Bhushan Shanti

Inventor： PANIKKATH, Vinod V. ,  CHELLAPPA, Vijay K. ,  ASURI, Bhushan Shanti

IPC: H04L27/36

CPC classification number: H04L27/368 ,  H04L27/365

Abstract: A wireless device for waveform scaling is disclosed. The wireless device includes a modulator that increases a magnitude of a peak digital code beyond a maximum available digital code for transmit power levels below a transmit power threshold to produce an adjusted digital code. The magnitude of the peak digital code is not increased beyond the maximum available digital code for transmit power levels above the transmit power threshold. The wireless device also includes a digital-to-analog converter that converts the adjusted digital code into an analog signal.

Abstract translation: 公开了一种用于波形缩放的无线设备。 该无线设备包括调制器，该调制器将峰值数字码的大小增加到超过发射功率阈值的发射功率电平的最大可用数字码以产生经调整的数字码。 高于发射功率阈值的发射功率电平，峰值数字码的幅度不会超过最大可用数字码。 无线设备还包括将经调整的数字代码转换为模拟信号的数模转换器。