公开(公告)号：US12284063B2

公开(公告)日：2025-04-22

申请号：US18448108

申请日：2023-08-10

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Shubham Ahuja ,  Alexander Dorosenco ,  Tao Luo

IPC: H04L25/49 ,  H03F1/32 ,  H04B1/62

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter device may transmit, to each receiver device of a plurality of receiver devices communicating with the transmitter device over a wideband channel using frequency division multiplexing, an indication of a bandwidth portion of the wideband channel to be used by the receiver device for performing measurements associated with a non-linear model of the transmitter device. The transmitter device may transmit, to each receiver device of the plurality of receiver devices, one or more wideband reference signals associated with training the non-linear model. The transmitter device may receive a plurality of digital pre-distortion (DPD) coefficients, obtain a set of DPD coefficients based at least in part on combining the plurality of DPD coefficients, and perform DPD processing in accordance with the set of DPD coefficients. Numerous other aspects are described.

公开(公告)号：US20240322991A1

公开(公告)日：2024-09-26

申请号：US18190043

申请日：2023-03-24

Applicant: QUALCOMM Incorporated

Inventor： Min Soo Sim ,  Shubham Ahuja ,  Wooseok Nam ,  Alexander Dorosenco ,  Tao Luo

IPC: H04L5/14 ,  H04L5/00

CPC classification number: H04L5/1461 ,  H04L5/001

Abstract: Methods, systems, and devices for wireless communications are described. A wireless communications device (e.g., a user equipment (UE) and/or a network entity) operating in a full-duplex operation mode may decode received signaling based on cancelling interference from transmitted signaling with a NLIC model with inter-component carrier (CC) terms. The wireless communications device may transmit and receive signaling using overlapping time resources in the full-duplex operation mode, which may cause self-interference (SI) due to the transmitted signaling interfering with the received signaling. Thus, the wireless communication device may implement a NLIC model to reduce, or remove, the SI on a per-CC basis, while accounting for inter-CC terms. That is, the NLIC model may include inter-CC terms, or kernels, that correspond to respective CCs of the transmitted signal.

公开(公告)号：US11838038B2

公开(公告)日：2023-12-05

申请号：US17306718

申请日：2021-05-03

Applicant: QUALCOMM Incorporated

Inventor： Nicholas Michael Carbone ,  Shubham Ahuja ,  Aidin Bassam ,  Alexander Dorosenco

IPC: H04K1/02 ,  H04B1/00 ,  H04B1/40

CPC classification number: H04B1/0082 ,  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.