公开(公告)号：US20150065058A1

公开(公告)日：2015-03-05

申请号：US14013569

申请日：2013-08-29

Applicant: QUALCOMM Incorporated

Inventor： Jibing Wang ,  Roberto Rimini

IPC: H04B15/00

CPC classification number: H04B15/00 ,  H04B1/10 ,  H04B1/109

Abstract: Disclosed is non-linear interference cancellation (NLIC) on a victim receiver in a communication system in which there is self-jamming interference from multiple aggressor transmitters. The victim receiver may implement cascaded NLIC operations using multiple interference signals in succession to remove the multiple interference signals from the Rx signal and to cancel or mitigate the self-jamming interference. The reconstruction and removal of the interference signals may be ordered based on the expected level of interference from the interference signals on the desired Rx signal. The victim receiver may first perform NLIC operation using the Tx signal from the transmitter aggressor estimated to generate the strongest interference signal to remove the strongest interference signal from the Rx signal first. The victim receiver may perform NLIC operation on the TX signal from the next strongest transmitter aggressor, and so on, to remove interference signals of multiple aggressor transmitters from the Rx signal.

Abstract translation: 公开了在来自多个攻击者发射机的自身干扰的通信系统中的受害者接收机上的非线性干扰消除（NLIC）。 受害者接收机可以使用多个干扰信号来连续地实现级联的NLIC操作，以从Rx信号中去除多个干扰信号并消除或减轻自干扰干扰。 干扰信号的重建和去除可以基于期望的Rx信号上来自干扰信号的预期的干扰水平来排序。 受害者接收机可以首先使用来自发射机攻击者的Tx信号来执行NLIC操作，以发射最强的干扰信号，以首先从Rx信号去除最强的干扰信号。 受害者接收机可以对来自下一个最强的发射机攻击者的TX信号执行NLIC操作，以此类推，以从Rx信号中去除多个攻击者发射机的干扰信号。

公开(公告)号：US20140301498A1

公开(公告)日：2014-10-09

申请号：US13857941

申请日：2013-04-05

Applicant: QUALCOMM INCORPORATED

Inventor： Roberto Rimini ,  Jibing Wang ,  Geert Arnout Awater

IPC: H04L25/08 ,  H04B1/12

CPC classification number: H04B1/12

Abstract: Systems and methods are disclosed to implement non-linear interference cancellation (NLIC) across chips or dies in communication systems to cancel or mitigate self-jamming interference. A victim transceiver may receive an analog baseband transmit (Tx) signal from an aggressor transceiver. The analog baseband Tx signal may be tapped from a digital analog converter (DAC) of the aggressor transceiver. Alternatively, the analog baseband Tx signal may be generated by the aggressor transceiver using an auxiliary down-conversion and filtering stage. The victim transceiver may receive a composite baseband Rx signal from the victim transceiver front-end. The composite baseband Rx signal includes the desired Rx signal and an interference signal. The victim transceiver may sample the analog baseband Tx signal to generate a digital signal replica of the analog baseband Tx signal for the NLIC operation to cancel or mitigate the interference signal present in the composite baseband Rx signal.

Abstract translation: 公开了系统和方法以在通信系统中跨芯片或芯片实现非线性干扰消除（NLIC），以消除或减轻自干扰干扰。 受害者收发器可以从侵扰者收发器接收模拟基带发射（Tx）信号。 可以从侵略者收发器的数字模拟转换器（DAC）中抽取模拟基带Tx信号。 或者，模拟基带Tx信号可以由侵略者收发器使用辅助下变频和滤波级产生。 受害者收发器可以从受害收发器前端接收复合基带Rx信号。 复合基带Rx信号包括期望的Rx信号和干扰信号。 受害收发器可以采样模拟基带Tx信号以产生用于NLIC操作的模拟基带Tx信号的数字信号副本，以消除或减轻存在于复合基带Rx信号中的干扰信号。

公开(公告)号：US12248089B2

公开(公告)日：2025-03-11

申请号：US17649759

申请日：2022-02-02

Applicant: QUALCOMM Incorporated

Inventor： Ahmad Bassil Zoubi ,  Anant Gupta ,  Sheng-Yuan Tu ,  Roberto Rimini ,  Neevan Ramalingam

IPC: G01S7/35 ,  G01S13/34 ,  H04B1/12

Abstract: In some aspects, a radar device may receive a plurality of received signals comprising a plurality of reflected frequency modulated continuous wave radar signals and phase noise. The radar device may obtain a frequency-domain representation of the received signals comprising a plurality of frequency-domain spectrums. The radar device may determine a shaped noise component of the frequency-domain representation corresponding to a negative distance portion of the frequency-domain representation. The radar device may determine a shaped decision boundary for target detection based at least in part on the shaped noise component, wherein the shaped decision boundary corresponds to a positive distance portion of the frequency-domain representation. The radar device may detect a radar target based at least in part on the shaped decision boundary. The radar device may perform an action based at least in part on detecting the radar target. Numerous other aspects are described.

公开(公告)号：US12207204B2

公开(公告)日：2025-01-21

申请号：US18467328

申请日：2023-09-14

Applicant: QUALCOMM Incorporated

Inventor： Roberto Rimini ,  Udara Fernando

IPC: H04W52/28 ,  H04M1/72454

Abstract: Some disclosed devices include an inertial sensor system, a proximity sensor system, an antenna system configured to transmit and receive radio signals and a control system. The control system may be configured for receiving inertial sensor data from the inertial sensor system and controlling the proximity sensor system and/or the antenna system based, at least in part, on the inertial sensor data. In some examples, the control system may be configured for controlling the proximity sensor system and/or the antenna system based, at least in part, on whether the inertial sensor data indicates that the device is being held, is being carried or is on a person's body (e.g., is in the person's pocket).

公开(公告)号：US11848714B2

公开(公告)日：2023-12-19

申请号：US18060083

申请日：2022-11-30

Applicant: QUALCOMM Incorporated

Inventor： Roberto Rimini

IPC: H04B17/13 ,  H04B1/3827 ,  H04B1/04

CPC classification number: H04B17/13 ,  H04B1/04 ,  H04B1/3838 ,  H04B2001/0408

Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a mobile device to address maximum permissible exposure (MPE) proximity sensor failure. A mobile device may include a maximum permissible exposure (MPE) sensor control unit to actively monitor signals associated with proper operation of the MPE proximity sensors. Upon detecting an anomaly in any of these signals, such as a value drop below a given threshold, an MPE sensor control Unit will inform an AP (application processor, or other processor or controller) which in turn trigger display of a warning message on the display of the mobile device or the issuance of other warnings such an audible or tactile alert to inform the end user about the maximum permissible exposure (MPE) proximity sensor malfunction and/or notify the end use of a condition resulting in deactivation of the 5G new radio transceiver.

公开(公告)号：US11740327B2

公开(公告)日：2023-08-29

申请号：US16885239

申请日：2020-05-27

Applicant: QUALCOMM Incorporated

Inventor： Volodimir Slobodyanyuk ,  Roberto Rimini ,  Udara Fernando ,  Nitin Jonathan Myers ,  Vijay Varadarajan

IPC: G01S7/41 ,  G01S13/42 ,  G06F17/14 ,  G06F17/16 ,  G01S7/35 ,  H01Q3/42

CPC classification number: G01S7/418 ,  G01S7/352 ,  G01S7/411 ,  G01S7/414 ,  G01S13/42 ,  G06F17/141 ,  G06F17/16 ,  H01Q3/42

Abstract: Methods, systems, computer-readable media, and apparatuses for determining one or more attributes of at least one target based on eigenspace analysis of radar signals are presented. In some embodiments, a subset of eigenvectors to use for forming a signal or noise subspace is identified based on principal component analysis. In some embodiments, the subset of eigenvectors is identified based on estimating the total number of targets using a discrete Fourier transform (DFT) or other spectral analysis technique. In some embodiments, a DFT is used to identify areas of interest in which to perform eigenspace analysis. In some embodiments, a DFT is used to estimate one attribute of a target, and eigenspace analysis is performed to estimate a different attribute of the target, with the results being combined to generate a multi-dimensional representation of a field of view.

公开(公告)号：US11320517B2

公开(公告)日：2022-05-03

申请号：US16548722

申请日：2019-08-22

Applicant: QUALCOMM Incorporated

Inventor： Roberto Rimini ,  Tsai-Chen Huang

IPC: G06F9/44 ,  G01S7/41 ,  H04W52/36 ,  H04W52/28 ,  H04B7/0426 ,  G01J3/433 ,  G01S13/28 ,  A61B5/00 ,  A61B3/10

Abstract: Aspects of the disclosure relate to classifying a target object. An electronic device may transmit a detection signal and receive a reflection signal reflected from the target object. The electronic device then determines, based on one or more features of the reflection signal, a category of the target object and adjusts at least one transmission parameter based on the category. The electronic device then transmits an adjust signal using the transmission parameter. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11146343B2

公开(公告)日：2021-10-12

申请号：US17144941

申请日：2021-01-08

Applicant: QUALCOMM Incorporated

Inventor： Roberto Rimini

IPC: H04B17/13 ,  H04B1/3827 ,  H04B1/04

Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a mobile device to address maximum permissible exposure (MPE) proximity sensor failure. A mobile device may include a maximum permissible exposure (MPE) sensor control unit to actively monitor signals associated with proper operation of the MPE proximity sensors. Upon detecting an anomaly in any of these signals, such as a value drop below a given threshold, an MPE sensor control Unit will inform an AP (application processor, or other processor or controller) which in turn trigger display of a warning message on the display of the mobile device or the issuance of other warnings such an audible or tactile alert to inform the end user about the maximum permissible exposure (MPE) proximity sensor malfunction and/or notify the end use of a condition resulting in deactivation of the 5G new radio transceiver.

公开(公告)号：US10897318B2

公开(公告)日：2021-01-19

申请号：US16549162

申请日：2019-08-23

Applicant: QUALCOMM Incorporated

Inventor： Roberto Rimini

IPC: H04B17/13 ,  H04B1/3827 ,  H04B1/04

Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a mobile device to address maximum permissible exposure (MPE) proximity sensor failure. A mobile device may include a maximum permissible exposure (MPE) sensor control unit to actively monitor signals associated with proper operation of the MPE proximity sensors. Upon detecting an anomaly in any of these signals, such as a value drop below a given threshold, an MPE sensor control Unit will inform an AP (application processor, or other processor or controller) which in turn trigger display of a warning message on the display of the mobile device or the issuance of other warnings such an audible or tactile alert to inform the end user about the maximum permissible exposure (MPE) proximity sensor malfunction and/or notify the end use of a condition resulting in deactivation of the 5G new radio transceiver.

公开(公告)号：US20190305859A1

公开(公告)日：2019-10-03

申请号：US16404519

申请日：2019-05-06

Applicant: Qualcomm Incorporated

Inventor： Roberto Rimini ,  Udara Fernando ,  Shahin Mehdizad Taleie

IPC: H04B17/27 ,  H04B5/00

Abstract: An apparatus is disclosed for proximity detection using a hybrid-transceiver. In an example aspect, the apparatus includes a hybrid transceiver coupled to a first antenna and a second antenna. The hybrid transceiver is configured to generate, in a digital domain, a digital baseband radar signal. The hybrid transceiver is also configured to transmit, via the first antenna, a radio-frequency transmit signal that is derived from the digital baseband radar signal. Via the second antenna, the hybrid transceiver is configured to receive a radio-frequency receive signal, which includes a portion of the radio-frequency transmit signal that is reflected by an object. In an analog domain, the hybrid transceiver is configured to generate an analog receive signal that includes a beat frequency, which is indicative of a frequency offset between the radio-frequency transmit signal and the radio-frequency receive signal. The analog receive signal is derived from the radio-frequency receive signal.