公开(公告)号：US12009848B2

公开(公告)日：2024-06-11

申请号：US17655517

申请日：2022-03-18

Applicant: QUALCOMM Incorporated

Inventor： Gideon Shlomo Kutz ,  Igor Gutman ,  Amit Bar-Or Tillinger

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H04B2001/0425

Abstract: Certain aspects of the present disclosure provide techniques for digital pre-distortion (DPD). An apparatus for wireless communication generally includes a power amplifier (PA); a first DPD circuit, a second DPD circuit, and a transmitter. The first DPD circuit is generally configured to: obtain an input signal; apply a first DPD to the input signal to generate a first resulting signal; and output the first resulting signal to the second DPD circuit. The second DPD circuit is generally configured to: obtain the first resulting signal from the first DPD circuit; apply a second DPD to the first resulting signal to generate a second resulting signal; and output the second resulting signal to the PA. The PA is generally configured to amplify the second resulting signal to generate an amplified second resulting signal. The transmitter is generally configured to transmit the amplified second resulting signal to a second apparatus.

公开(公告)号：US11979181B2

公开(公告)日：2024-05-07

申请号：US17584108

申请日：2022-01-25

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Tao Luo

IPC: H04B1/12 ,  H04B1/10 ,  H04B1/14 ,  H04L5/00 ,  H04W72/541

CPC classification number: H04B1/12 ,  H04B1/1036 ,  H04B1/14 ,  H04L5/0048 ,  H04W72/541

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting (Tx) device transmits, to a receiving (Rx) device, a control message indicating a location of one or more noise spurs associated with wireless communications performed by the Tx device using a set of resources, where the location includes a frequency location of the one or more noise spurs in the frequency domain. The Tx device then generates a data message to be communicated using the set of resources associated with the one or more noise spurs based on transmitting the control message, and transmits the generated data message to the Rx device using the set of resources associated with the one or more noise spurs. By indicating the location of the noise spurs, the Rx device may be more able to more efficiently identify and address (e.g., filter out, ignore) the noise spurs within the data message.

公开(公告)号：US11901909B2

公开(公告)日：2024-02-13

申请号：US17664358

申请日：2022-05-20

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Behnam Sedighi ,  Tao Luo ,  Elias Dagher ,  Jeremy Darren Dunworth

IPC: H03M1/18

CPC classification number: H03M1/188 ,  H03M1/185

Abstract: Certain aspects are directed to an apparatus configured for wireless communication. The apparatus may include a memory comprising instructions, and one or more processors configured to execute the instructions. In some examples, the one or more processors are configured to cause the apparatus to obtain a sample of an analog signal. In some examples, the one or more processors are configured to cause the apparatus to output the sample to an analog-to-digital converter (ADC) via one of at least a first path or a second path based at least in part on whether the sample satisfies a first threshold condition or a second threshold condition.

公开(公告)号：US20240049131A1

公开(公告)日：2024-02-08

申请号：US17882715

申请日：2022-08-08

Applicant: Qualcomm Incorporated

Inventor： Konstantinos Dimou ,  Igor Gutman ,  Junyi Li ,  Tao Luo

IPC: H04W52/02 ,  H04W24/10 ,  H04B17/345 ,  H04W72/12

CPC classification number: H04W52/0212 ,  H04W24/10 ,  H04B17/345 ,  H04W52/0229 ,  H04W72/1205

Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a network entity may adjust a backoff power level for communications by the network entity in a first cell supported by the network entity. The network entity may transmit signaling that indicates an estimated level of interference in a second cell supported by a neighboring network entity based on the adjusted backoff power level. The network entity may receive a feedback message from the neighboring network entity that indicates downlink interference measurements by one or more UEs operating within the second cell. In some examples, the feedback message may indicate a difference in interference measurements obtained by the UEs before and after the backoff power level is adjusted by the network entity. The network entity may further adjust or maintain the backoff power level based on the feedback received from the neighboring network entity.

公开(公告)号：US20230337026A1

公开(公告)日：2023-10-19

申请号：US17722216

申请日：2022-04-15

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Yavuz Yapici ,  Tao Luo

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a second network entity (e.g., a transmitting device) may transmit first signaling to a second network entity (e.g., a receiving device) to indicate one or more frequency domain residual sideband (FDRSB) parameters associated with the second network entity. The FDRSB parameters may be associated with an imbalance between an in-phase component and a quadrature phase component of the first signaling. The second network entity may generate and transmit second signaling that is configured to have the one or more FDRSB characteristics. The first network entity may determine whether the second network entity is a source of the second signaling based on the one or more FDRSB characteristics of the second signaling and the one or more FDRSB parameters indicated by the first signaling.

公开(公告)号：US20230299800A1

公开(公告)日：2023-09-21

申请号：US17655517

申请日：2022-03-18

Applicant: QUALCOMM Incorporated

Inventor： Gideon Shlomo Kutz ,  Igor Gutman ,  Amit Bar-Or Tillinger

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H04B2001/0425

Abstract: Certain aspects of the present disclosure provide techniques for digital pre-distortion (DPD). An apparatus for wireless communication generally includes a power amplifier (PA); a first DPD circuit, a second DPD circuit, and a transmitter. The first DPD circuit is generally configured to: obtain an input signal; apply a first DPD to the input signal to generate a first resulting signal; and output the first resulting signal to the second DPD circuit. The second DPD circuit is generally configured to: obtain the first resulting signal from the first DPD circuit; apply a second DPD to the first resulting signal to generate a second resulting signal; and output the second resulting signal to the PA. The PA is generally configured to amplify the second resulting signal to generate an amplified second resulting signal. The transmitter is generally configured to transmit the amplified second resulting signal to a second apparatus.

公开(公告)号：US11496189B2

公开(公告)日：2022-11-08

申请号：US16888566

申请日：2020-05-29

Applicant: QUALCOMM Incorporated

Inventor： Sharon Levy ,  Guy Wolf ,  Igor Gutman ,  Assaf Touboul ,  Ory Eger ,  Noam Zach

IPC: H04W4/00 ,  H04B7/0456 ,  H04L5/00 ,  H04B1/04

Abstract: Techniques for wireless communications are described. A communication device may support processing digital post distortion using additional references symbols. For example, the communication device may precode a signal including at least two reference symbols for a single-layer transmission using at least two antenna ports. At least one reference symbol of the at least two reference symbols is associated with at least one data symbol of a data stream. The communication device may estimate, based on the at least two reference symbols, a nonlinearity model of at least two power amplifiers associated with the single-layer transmission, and determine an estimate of a nonlinearity factor of the precoded signal based on the estimated nonlinearity model. As a result, the communication device may eliminate or reduce the nonlinear factor of the precoded signal based on the estimated nonlinearity model of the at least two power amplifiers and the estimated channel impulse response.

公开(公告)号：US20220321298A1

公开(公告)日：2022-10-06

申请号：US17846350

申请日：2022-06-22

Applicant: QUALCOMM Incorporated

Inventor： Sharon Levy ,  Assaf Touboul ,  Guy Wolf ,  Igor Gutman

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/08

Abstract: Methods, systems, and devices for wireless communications are described. Some systems may support digital post-distortion (DPoD) processing at a base station. In some such systems, a user equipment (UE) may process a data message for transmission, where a resulting signal associated with the data message includes non-linear characteristics that are handled by DPoD on the receiver-side. The non-linear characteristics may cause the signal to leak into out-of-band (OOB) resources, potentially resulting in interference. In some examples, the UE may transmit the data message to the base station in a multi-user system. To support mitigation of non-linear interference on signaling by other UEs, the UE may additionally transmit pilot signals in OOB resources (e.g., in addition to in-band resources) where the non-linearity may be expected to negatively affect other communications. The base station may use the OOB pilot signals to perform channel estimation and interference mitigation.

公开(公告)号：US11445518B2

公开(公告)日：2022-09-13

申请号：US17103418

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Guy Wolf ,  Shay Landis ,  Gideon Kutz ,  Sharon Levy ,  Yehonatan Dallal

IPC: H04W72/08 ,  H04L5/00

Abstract: Aspects are provided which allow a UE to apply a modified interference cleaning data to account for differences in interference between at least one pilot resource and at least one data resource, thereby improving data decoding performance of the UE. The UE receives at least one pilot resource and at least one data resources from a base station and identifies interference cleaning data based on the pilot resource. The UE then determines whether a first interference affecting the pilot resource is the same as a second interference affecting the data resource. When the first interference is the same as the second interference, the UE applies the interference cleaning data to the data resource. Otherwise, when the first interference is different than the second interference, the apparatus applies a modified interference cleaning data to the data resource.

公开(公告)号：US11265815B2

公开(公告)日：2022-03-01

申请号：US16399147

申请日：2019-04-30

Applicant: QUALCOMM Incorporated

Inventor： Shay Landis ,  Igor Gutman ,  Assaf Touboul ,  Gideon Shlomo Kutz ,  David Yunusov ,  Tal Oved

IPC: H04W52/02

Abstract: Method and apparatus are provided for power saving by detecting empty symbols. In accordance with some implementation, a UE may determine that a data channel is not allocated to it by determining that there is no beam directed to it and there was no prior resource allocation to it. The UE upon such determination may enter sleep mode until the start of the next scheduling unit. This may result in reduction in power consumption compared to entering sleep mode after demodulating and decoding the control channel.