公开(公告)号：US20240224052A1

公开(公告)日：2024-07-04

申请号：US18148664

申请日：2022-12-30

Applicant: QUALCOMM Incorporated

Inventor： Min Soo SIM ,  Shubham AHUJA ,  Wooseok NAM ,  Alexander DOROSENCO ,  Tao LUO

IPC: H04W16/10 ,  H04L5/00 ,  H04L5/14 ,  H04W72/231

CPC classification number: H04W16/10 ,  H04L5/0051 ,  H04L5/14 ,  H04W72/231

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless device may select one or more parameters for a soft guard band in a subband full duplex slot that are different than one or more parameters for a hard guard band. The wireless device may transmit or receive a communication using the soft guard band and the hard guard band, wherein the soft guard band is between a center band and the hard guard band. Numerous other aspects are described.

公开(公告)号：US20250055734A1

公开(公告)日：2025-02-13

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：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：US20240204976A1

公开(公告)日：2024-06-20

申请号：US18069193

申请日：2022-12-20

Applicant: QUALCOMM Incorporated

Inventor： Shubham AHUJA ,  Min Soo SIM ,  Wooseok NAM ,  Alexander DOROSENCO ,  Tao LUO

IPC: H04L5/14 ,  H04B1/00 ,  H04B1/44

CPC classification number: H04L5/1461 ,  H04B1/0067 ,  H04B1/44

Abstract: A UE may identify one or more fractional bands in relation to a bandwidth associated with FD communication. Each fractional band in the one or more fractional bands may be a fraction of the bandwidth. The UE may sample at least one signal at the one or more fractional bands. The UE may estimate one or more SIC coefficients based on the at least one signal. The UE may perform SIC for the bandwidth associated with the FD communication based on the estimated one or more SIC coefficients. In one configuration, the at least one signal may be sampled with a sampling rate less than a threshold. In one configuration, the at least one signal may be sampled using an auxiliary hardware path including an auxiliary ADC. In one configuration, the sampling the at least one signal may be associated with decimation or rotation.

公开(公告)号：US20230336321A1

公开(公告)日：2023-10-19

申请号：US18147494

申请日：2022-12-28

Applicant: QUALCOMM Incorporated

Inventor： Min Soo SIM ,  Wooseok NAM ,  Zhifei FAN ,  Shubham AHUJA ,  Alexander DOROSENCO ,  Tao LUO

IPC: H04L5/14 ,  H04L5/00

CPC classification number: H04L5/1461 ,  H04L5/0051

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit a first signal in accordance with a full duplex configuration. The network node may receive a second signal comprising a communication and self-interference associated with the first signal, wherein receiving the second signal comprises cancelling the self-interference based at least in part on a nonlinear interference cancellation (NLIC) procedure associated with a subset of kernels of a set of nonlinear candidate kernels corresponding to a nonlinear self-interference model. Numerous other aspects are described.