公开(公告)号：US20220376713A1

公开(公告)日：2022-11-24

申请号：US17306718

申请日：2021-05-03

Applicant: QUALCOMM Incorporated

Inventor： Nicholas Michael CARBONE ,  Shubham AHUJA ,  Aidin BASSAM ,  Alexander DOROSENCO

IPC: H04B1/00 ,  H04B1/40

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transceiver chain may receive, using a downconverter tuned by at least one local oscillator, transmit signals that are modulated using a modulation bandwidth and that span a total bandwidth greater than or equal to the modulation bandwidth. The at least one local oscillator may cover a first fraction of the total bandwidth. The transceiver chain may receive, using at least one analog-to-digital converter, input from the downconverter, and may output a first digital signal based at least in part on the input and sampling at the first fraction of the total bandwidth. The transceiver chain may determine an error associated with the transmit signals based at least in part on the first digital signal, and may perform digital pre-distortion on new signals based at least in part on the error. Numerous other aspects are described.

公开(公告)号：US20230318737A1

公开(公告)日：2023-10-05

申请号：US17657699

申请日：2022-04-01

Applicant: QUALCOMM Incorporated

Inventor： Christos KOMNINAKIS ,  Sanjay AVASARALA ,  Ryan Scott Castro SPRING ,  Aidin BASSAM ,  Michael Lee MCCLOUD

IPC: H04L1/00 ,  H04L5/00 ,  H04B1/04

CPC classification number: H04L1/0015 ,  H04L5/0048 ,  H04B1/0475

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may receive a configuration indicating a parameter of a signal to be optimized for a portion of a frequency range. The wireless node may transform a feedback signal and a reference signal into a frequency domain. The wireless node may generate an error signal based at least in part on transforming the feedback signal and the reference signal. The wireless node may assign weights to the error signal to generate a weighted error signal. The weights may be assigned to the error signal in the portion of the frequency range and a remaining portion of the frequency range according to the configuration. The wireless node may transmit the signal based at least in part on utilizing the weighted error signal to apply digital pre-distortion to the signal. Numerous other aspects are described.