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公开(公告)号：US10707907B2
公开(公告)日：2020-07-07
申请号：US16222884
申请日：2018-12-17
Applicant: QUALCOMM Incorporated
Inventor： Ariel Yaakov Sagi , Igor Gutman
Abstract: A transmitter may be configured to generate a reference signal having a non-constant envelope for nonlinearity estimation by a receiver. The transmitter may transmit the reference signal. A receiver may be configured to receive, from the transmitter, the reference signal having the non-constant envelope. The receiver may estimate at least one nonlinearity characteristic based on the reference signal having the non-constant envelope. The receiver may transmit feedback based on the at least one nonlinearity characteristic and/or perform at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
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公开(公告)号：US11108419B2
公开(公告)日：2021-08-31
申请号：US16908591
申请日：2020-06-22
Applicant: QUALCOMM Incorporated
Inventor： Ariel Yaakov Sagi , Igor Gutman
Abstract: A transmitter may be configured to generate a reference signal having a non-constant envelope for nonlinearity estimation by a receiver. The transmitter may transmit the reference signal. A receiver may be configured to receive, from the transmitter, the reference signal having the non-constant envelope. The receiver may estimate at least one nonlinearity characteristic based on the reference signal having the non-constant envelope. The receiver may transmit feedback based on the at least one nonlinearity characteristic and/or perform at least one digital post distortion (DPoD) operation based on the at least one nonlinearity characteristic.
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公开(公告)号：US11476998B2
公开(公告)日：2022-10-18
申请号：US16937833
申请日：2020-07-24
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Shay Landis , Gideon Shlomo Kutz , Ran Berliner , Alexandros Manolakos , Ariel Yaakov Sagi , Guy Wolf , Sharon Levy
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently reporting channel state feedback for a set of subbands. As an example, a user equipment (UE) may receive a set of reference signals on the set of subbands and determine a respective channel quality indicator (CQI) index for each of the set of subbands based on the reference signals. The UE may then transmit indications of CQI indices for different subbands of the set using variable length indications, such as indications that include different numbers of bits. Since, in some examples, a small length or number of bits may be allocated for reporting CQI indices with a high probability of being reported, overhead in a wireless communications system may be reduced.
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公开(公告)号：US11070397B2
公开(公告)日：2021-07-20
申请号：US16502958
申请日：2019-07-03
Applicant: QUALCOMM Incorporated
Inventor： Evyatar Hemo , Evgeny Levitan , Ariel Yaakov Sagi , Sharad Sambhwani
IPC: H04L25/02 , H04B7/0408 , H04B17/354 , H04B1/525
Abstract: Techniques provided herein are directed toward enabling short-range proximity detection using radar sensors by reducing or eliminating OTA leakage. Embodiments generally include performing spatial cancellation by using a plurality of transmit/receive pairs of antenna elements to implement analog and/or digital leakage cancellation on the transmit and/or receive side. According to some embodiments null space projection cancellation, OTA leakage tracking, or adaptive minimum variance distortionless response (MVDR) beamforming may be performed to help preserve of the OTA leakage cancellation efficacy over time.
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公开(公告)号：US20210050981A1
公开(公告)日：2021-02-18
申请号：US16937833
申请日：2020-07-24
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Shay Landis , Gideon Shlomo Kutz , Ran Berliner , Alexandros Manolakos , Ariel Yaakov Sagi , Guy Wolf , Sharon Levy
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently reporting channel state feedback for a set of subbands. As an example, a user equipment (UE) may receive a set of reference signals on the set of subbands and determine a respective channel quality indicator (CQI) index for each of the set of subbands based on the reference signals. The UE may then transmit indications of CQI indices for different subbands of the set using variable length indications, such as indications that include different numbers of bits. Since, in some examples, a small length or number of bits may be allocated for reporting CQI indices with a high probability of being reported, overhead in a wireless communications system may be reduced.
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Patent Agency Ranking
公开(公告)号：US09762266B2
公开(公告)日：2017-09-12
申请号：US14668823
申请日：2015-03-25
Applicant: QUALCOMM Incorporated
Inventor： Haim Mendel Weissman , Ariel Yaakov Sagi
CPC classification number: H04B1/0475 , H04B1/0483 , H04B2001/0425
Abstract: A transceiver in a wireless device supporting carrier aggregation may include a correction module to generate a correction signal to attenuate intermodulation distortion associated with a first transmitted communication signal. In one embodiment, the correction signal may be added to the first transmitted communication signal (a victim signal) to reduce the intermodulation distortion caused by a second transmitted communication signal (an aggressor signal). The correction signal may be generated based on the aggressor signal. In another embodiment, the correction signal may equalize or pre-distort the first transmitted communication signal.
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公开(公告)号：US12212441B2
公开(公告)日：2025-01-28
申请号：US18158944
申请日：2023-01-24
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Tao Luo , Ariel Yaakov Sagi , Konstantinos Dimou , Junyi Li , Jianghong Luo
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may apply a crest factor reduction (CFR) to an input signal to generate an output signal, the applying the CFR to the input signal including applying a shaping filter that distributes a first portion of CFR noise within a transmission frequency band of the output signal and a second portion of the CFR noise in at least one air interface resource that is outside of the transmission frequency band of the output signal. The network node may transmit the output signal. Numerous other aspects are described.
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公开(公告)号：US10469109B2
公开(公告)日：2019-11-05
申请号：US15709208
申请日：2017-09-19
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Ariel Yaakov Sagi , Alecsander Petru Eitan
Abstract: In certain aspects of the present disclosure, a method for wireless communication comprises predistorting a first signal based on a set of coefficients to generate a first predistorted signal, outputting the first predistorted signal for a first transmission to a receiving device, and receiving a first feedback signal from the receiving device, wherein the first feedback signal provides feedback of a first receive signal at the receiving device corresponding to the first transmission. The method also comprises determining whether to store the set of coefficients in a memory based on the received first feedback signal, and storing the set of coefficients in the memory based on the determination.
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公开(公告)号：US20190089389A1
公开(公告)日：2019-03-21
申请号：US15709208
申请日：2017-09-19
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Ariel Yaakov Sagi , Alecsander Petru Eitan
CPC classification number: H04B1/0475 , H03F1/3247 , H03F3/24 , H03F3/68 , H03F2201/3233 , H04B1/40 , H04B2001/0425 , H04B2001/0433 , H04B2001/045
Abstract: In certain aspects of the present disclosure, a method for wireless communication comprises predistorting a first signal based on a set of coefficients to generate a first predistorted signal, outputting the first predistored signal for a first transmission to a receiving device, and receiving a first feedback signal from the receiving device, wherein the first feedback signal provides feedback of a first receive signal at the receiving device corresponding to the first transmission. The method also comprises determining whether to store the set of coefficients in a memory based on the received first feedback signal, and storing the set of coefficients in the memory based on the determination.
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公开(公告)号：US20160285484A1
公开(公告)日：2016-09-29
申请号：US14668823
申请日：2015-03-25
Applicant: QUALCOMM Incorporated
Inventor： Haim Mendel Weissman , Ariel Yaakov Sagi
IPC: H04B1/04
CPC classification number: H04B1/0475 , H04B1/0483 , H04B2001/0425
Abstract: A transceiver in a wireless device supporting carrier aggregation may include a correction module to generate a correction signal to attenuate intermodulation distortion associated with a first transmitted communication signal. In one embodiment, the correction signal may be added to the first transmitted communication signal (a victim signal) to reduce the intermodulation distortion caused by a second transmitted communication signal (an aggressor signal). The correction signal may be generated based on the aggressor signal. In another embodiment, the correction signal may equalize or pre-distort the first transmitted communication signal.
Abstract translation: 支持载波聚合的无线设备中的收发器可以包括校正模块，用于产生校正信号以衰减与第一发送的通信信号相关联的互调失真。 在一个实施例中，校正信号可以被添加到第一发送通信信号（受害信号），以减少由第二发送通信信号（侵略者信号）引起的互调失真。 校正信号可以基于侵略者信号产生。 在另一实施例中，校正信号可以对第一发送通信信号进行均衡或预失真。
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