公开(公告)号：US20220038061A1

公开(公告)日：2022-02-03

申请号：US17501212

申请日：2021-10-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Raghu Ganesan ,  Harish Kumar Ramesh ,  John Roshan Samuel Chandran ,  Lakshmi Bala Krishna Manoja Vinnakota

IPC: H03F1/32 ,  H04B1/04 ,  H04B17/12

Abstract: A method for digital predistortion (DPD) calibration in a wireless communication device is provided that includes transmitting, by transmission circuitry of the wireless communication device, a plurality of pulses, where each pulse corresponds to an amplitude step in a pattern of amplitude steps, where the amplitude steps are separated by silence gaps, receiving each pulse in receiver circuitry of the wireless communication device, generating, by an accumulator component of the wireless communication device, an accumulated sample for each pulse based on a plurality of samples output by the receiver circuitry for the pulse, and computing, by a processor of the wireless communication device, amplitude dependent gain (AM/AM) and amplitude dependent phase shift (AM/PM) values for each accumulated sample.

公开(公告)号：US11177778B2

公开(公告)日：2021-11-16

申请号：US17148304

申请日：2021-01-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Raghu Ganesan ,  Harish Kumar Ramesh ,  John Roshan Samuel Chandran ,  Lakshmi Bala Krishna Manoja Vinnakota

IPC: H03F1/32 ,  H04B17/12 ,  H04B17/24 ,  H04B17/14

Abstract: A method for digital predistortion (DPD) calibration in a wireless communication device is provided that includes transmitting, by transmission circuitry of the wireless communication device, a plurality of pulses, where each pulse corresponds to an amplitude step in a pattern of amplitude steps, where the amplitude steps are separated by silence gaps, receiving each pulse in receiver circuitry of the wireless communication device, generating, by an accumulator component of the wireless communication device, an accumulated sample for each pulse based on a plurality of samples output by the receiver circuitry for the pulse, and computing, by a processor of the wireless communication device, amplitude dependent gain (AM/AM) and amplitude dependent phase shift (AM/PM) values for each accumulated sample.

公开(公告)号：US11876491B2

公开(公告)日：2024-01-16

申请号：US17501212

申请日：2021-10-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Raghu Ganesan ,  Harish Kumar Ramesh ,  John Roshan Samuel Chandran ,  Lakshmi Bala Krishna Manoja Vinnakota

IPC: H03F1/32 ,  H04B17/12 ,  H04B17/24 ,  H04B17/14

CPC classification number: H03F1/3247 ,  H04B17/12 ,  H04B17/14 ,  H04B17/24

Abstract: A method for digital predistortion (DPD) calibration in a wireless communication device is provided that includes transmitting, by transmission circuitry of the wireless communication device, a plurality of pulses, where each pulse corresponds to an amplitude step in a pattern of amplitude steps, where the amplitude steps are separated by silence gaps, receiving each pulse in receiver circuitry of the wireless communication device, generating, by an accumulator component of the wireless communication device, an accumulated sample for each pulse based on a plurality of samples output by the receiver circuitry for the pulse, and computing, by a processor of the wireless communication device, amplitude dependent gain (AM/AM) and amplitude dependent phase shift (AM/PM) values for each accumulated sample.

公开(公告)号：US20210135635A1

公开(公告)日：2021-05-06

申请号：US17148304

申请日：2021-01-13

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Raghu Ganesan ,  Harish Kumar Ramesh ,  John Roshan Samuel Chandran ,  Lakshmi Bala Krishna Manoja Vinnakota

IPC: H03F1/32 ,  H04B17/12 ,  H04B17/24 ,  H04B17/14

Abstract: A method for digital predistortion (DPD) calibration in a wireless communication device is provided that includes transmitting, by transmission circuitry of the wireless communication device, a plurality of pulses, where each pulse corresponds to an amplitude step in a pattern of amplitude steps, where the amplitude steps are separated by silence gaps, receiving each pulse in receiver circuitry of the wireless communication device, generating, by an accumulator component of the wireless communication device, an accumulated sample for each pulse based on a plurality of samples output by the receiver circuitry for the pulse, and computing, by a processor of the wireless communication device, amplitude dependent gain (AM/AM) and amplitude dependent phase shift (AM/PM) values for each accumulated sample.

公开(公告)号：US10924068B2

公开(公告)日：2021-02-16

申请号：US16288094

申请日：2019-02-27

Applicant: Texas Instruments Incorporated

Inventor： Raghu Ganesan ,  Harish Kumar Ramesh ,  John Roshan Samuel Chandran ,  Lakshmi Bala Krishna Manoja Vinnakota

IPC: H04B17/12 ,  H03F1/32 ,  H04B17/24 ,  H04B17/14

Abstract: A method for digital predistortion (DPD) calibration in a wireless communication device is provided that includes transmitting, by transmission circuitry of the wireless communication device, a plurality of pulses, where each pulse corresponds to an amplitude step in a pattern of amplitude steps, where the amplitude steps are separated by silence gaps, receiving each pulse in receiver circuitry of the wireless communication device, generating, by an accumulator component of the wireless communication device, an accumulated sample for each pulse based on a plurality of samples output by the receiver circuitry for the pulse, and computing, by a processor of the wireless communication device, amplitude dependent gain (AM/AM) and amplitude dependent phase shift (AM/PM) values for each accumulated sample.

公开(公告)号：US20200274500A1

公开(公告)日：2020-08-27

申请号：US16288094

申请日：2019-02-27

Applicant: Texas Instruments Incorporated

Inventor： Raghu Ganesan ,  Harish Kumar Ramesh ,  John Roshan Samuel Chandran ,  Lakshmi Bala Krishna Manoja Vinnakota

IPC: H03F1/32 ,  H04B17/14 ,  H04B17/24 ,  H04B17/12

Abstract: A method for digital predistortion (DPD) calibration in a wireless communication device is provided that includes transmitting, by transmission circuitry of the wireless communication device, a plurality of pulses, where each pulse corresponds to an amplitude step in a pattern of amplitude steps, where the amplitude steps are separated by silence gaps, receiving each pulse in receiver circuitry of the wireless communication device, generating, by an accumulator component of the wireless communication device, an accumulated sample for each pulse based on a plurality of samples output by the receiver circuitry for the pulse, and computing, by a processor of the wireless communication device, amplitude dependent gain (AM/AM) and amplitude dependent phase shift (AM/PM) values for each accumulated sample.