公开(公告)号：US20230136719A1

公开(公告)日：2023-05-04

申请号：US17518468

申请日：2021-11-03

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Igor GUTMAN ,  Peter GAAL ,  Junyi LI ,  Tao LUO

IPC: H04B17/23 ,  H04B1/40

Abstract: A network device is provided with excessive interference mitigation. In one implementation, the network device transmits a notification of the excessive interference to a network entity. In another implementation, the network device changes a receive beam or begins to acquire a new cell in response to a detection of the excessive interference. In yet another implementation, the network device alerts a user in response to a detection of the excessive interference.

公开(公告)号：US20210243703A1

公开(公告)日：2021-08-05

申请号：US16779075

申请日：2020-01-31

Applicant: QUALCOMM Incorporated

Inventor： Guy WOLF ,  Sharon LEVY ,  Igor GUTMAN ,  Yehonatan DALLAL

IPC: H04W56/00 ,  H04W72/00 ,  H04B7/01 ,  H04L1/00 ,  H04L27/26

Abstract: A synchronization signal block (SSB) transmitted by a neighbor base station may interfere with a physical downlink shared channel (PDSCH) transmitted by a serving base station. A user equipment (UE) that receives both the SSB and PDSCH may mitigate the interference to improve an error rate of decoding the PDSCH. The UE may receive a first SSB including a first broadcast channel (BCH) from a second base station other than a serving base station. The UE may decode the first SSB. The UE may determine, based on the first SSB and the first BCH, that the PDSCH scheduled by the serving base station will overlap with a second SSB from the second base station. The UE may estimate a channel of the second SSB based on the decoded first SSB. The UE may remove a reconstructed second SSB from the PDSCH. The UE may decode the PDSCH.

公开(公告)号：US20210143888A1

公开(公告)日：2021-05-13

申请号：US16678740

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

Inventor： Igor GUTMAN ,  Michael LEVITSKY ,  Ran BERLINER ,  Shay LANDIS ,  Gideon Shlomo KUTZ

IPC: H04B7/06 ,  H04W72/04 ,  H04W56/00 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may synchronize a beam switch of the base station with transmission of a reference signal for channel state feedback, and schedule a channel state feedback report to be transmitted after the transmission of the reference signal for channel state feedback. Numerous other aspects are provided.

公开(公告)号：US20250158867A1

公开(公告)日：2025-05-15

申请号：US18510484

申请日：2023-11-15

Applicant: QUALCOMM Incorporated

Inventor： Kianoush HOSSEINI ,  Jing JIANG ,  Peter GAAL ,  Tao LUO ,  Igor GUTMAN

IPC: H04L27/26

Abstract: Methods, systems, and devices for wireless communication are described. A wireless communication device may receive control signaling that indicates a change in one or more radio frequency thresholds for wireless signaling. The wireless communication device may perform, as part of an in-band clipping procedure, noise repetition and noise shaping to reduce a peak-to-average power ratio (PAPR) associated with the wireless signaling. The noise repetition and the noise shaping may include generating a set of values with one or more first values and one or more second values. The one or more first values may be associated with an error margin between a sample of a wireless communication signal and a clipping threshold. The one or more second values may be inversions of the one or more first values. The wireless communication device may apply the set of values to the wireless communication signal to reduce PAPR.

公开(公告)号：US20250096810A1

公开(公告)日：2025-03-20

申请号：US18470309

申请日：2023-09-19

Applicant: QUALCOMM Incorporated

Inventor： Igor GUTMAN ,  Elias DAGHER ,  Hua WANG ,  Behnam SEDIGHI ,  Seyed Arash MIRHAJ ,  Tao LUO

IPC: H03M1/06 ,  G06N3/08 ,  H03M1/12

Abstract: A training signal generator for forming an input signal for an ADC-under-test includes a one-bit DAC and an analog low-pass filter. The one-bit DAC converts a binary sequence into a DAC output signal that is then filtered by the analog low-pass filter to form an ADC input signal. The ADC-under-test converts the ADC input signal into an ADC output signal. A digital low-pass filter converts the binary sequence into a plurality of samples. A digital signal processing system processes the plurality of samples and the ADC output signal to form an estimate of the ADC input signal. An ADC linearizer may then be trained to characterize a non-linear impairment of the ADC-under-test responsive to a comparison of the estimate of the ADC input signal and the ADC output signal.

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：US20250039691A1

公开(公告)日：2025-01-30

申请号：US18361463

申请日：2023-07-28

Applicant: QUALCOMM Incorporated

Inventor： Igor GUTMAN ,  Tao LUO

IPC: H04W24/02

Abstract: Certain aspects of the present disclosure provide techniques for managing blocker signal interference. An example method includes transmitting, to a network entity, capability information indicating a capability of the first wireless communications device to reduce an impact of interference associated with one or more blocker signals, receiving, from the network entity based on the capability information, information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals to be received by the first wireless communications device, receiving the one or more blocker signals and the one or more data signals, and taking one or more actions to reduce the impact of the interference associated with the one or more blocker signals based on the information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals.

公开(公告)号：US20240250740A1

公开(公告)日：2024-07-25

申请号：US18159405

申请日：2023-01-25

Applicant: QUALCOMM Incorporated

Inventor： Igor GUTMAN ,  Tao LUO ,  Junyi LI

IPC: H04B7/08 ,  H04W52/02

CPC classification number: H04B7/088 ,  H04W52/0229

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, using at least one wake up receiver associated with the UE, one or more wake up signals for beam tracking (WUTs). The UE may measure a quality of each WUT, of the one or more WUTs. The UE may activate a main receiver associated with the UE to perform a beam recovery procedure based at least in part on a measured quality of at least one WUT, of the one or more WUTs. Numerous other aspects are described.

公开(公告)号：US20240205696A1

公开(公告)日：2024-06-20

申请号：US18066260

申请日：2022-12-14

Applicant: QUALCOMM Incorporated

Inventor： Igor GUTMAN ,  Tao LUO

IPC: H04W24/02 ,  H04B17/336 ,  H04W24/10

CPC classification number: H04W24/02 ,  H04B17/336 ,  H04W24/10

Abstract: Apparatuses and methods for base station assistance for impairments correction and handling for AF repeaters are described. An apparatus is configured to obtain a first indication of one or more conditions associated with a set of NL characteristics and a set of droop characteristics. The apparatus is also configured to measure the set of NL characteristics and the set of droop characteristics, where the set of NL characteristics and the set of droop characteristics are associated with a DPD training session. The apparatus is also configured to transmit, for a network node, one or more of: (1) a second indication of the measured set of NL characteristics and the measured set of droop characteristics, or (2) at least one of a list of excluded resources or a set of indexes for the list of excluded resources that are associated with interference at the wireless device.

公开(公告)号：US20240129172A1

公开(公告)日：2024-04-18

申请号：US18047559

申请日：2022-10-18

Applicant: QUALCOMM Incorporated

Inventor： Igor GUTMAN ,  Junyi LI ,  Tingfang JI ,  Joseph Patrick BURKE ,  Pushkar Bajirao KULKARNI ,  Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Juergen CEZANNE ,  Tao LUO ,  Peter GAAL

IPC: H04L27/26

CPC classification number: H04L27/2613 ,  H04L27/2605 ,  H04L27/2623

Abstract: Aspects are provided for generation and transmission of MDMRS which allow matching of nonlinear model impact or properties between DMRS and data in DFT-s-OFDM waveforms as well as CP-OFDM waveforms. A UE transmits, to a network entity, an MDMRS generated from a DMRS. The MDMRS has a PAPR distribution matching a PAPR distribution of a signal including data in an uplink channel. A target PAPR of the MDMRS is based on a modulation scheme of the data. The UE also transmits the data in the uplink channel, where the uplink channel includes a PUCCH or a PUSCH. As a result of the ability of MDMRS to match the nonlinear impact of DMRS and PUSCH or PUCCH, the network entity may compensate for any EVM that may occur as a result of PAPR reduction by a nonlinear operator of the UE, and communication performance may thereby be improved.