公开(公告)号：US20220066011A1

公开(公告)日：2022-03-03

申请号：US17521804

申请日：2021-11-08

Applicant: Qualcomm Incorporated

Inventor： Mustafa Emin Sahin ,  Udara Fernando ,  Roberto Rimini ,  Raghu Challa ,  Seunghwan Kim

IPC: G01S13/32 ,  H04B7/06

Abstract: An apparatus is disclosed for proximity detection using multiple power levels. In an example aspect, the apparatus includes a first antenna, a second antenna, and a wireless transceiver coupled to the first antenna and the second antenna. The wireless transceiver is configured to transmit multiple transmit signals at multiple power levels via the first antenna. The wireless transceiver is also configured to receive multiple receive signals via the second antenna. At least one receive signal of the multiple receive signals includes a portion of at least one transmit signal of the multiple transmit signals that is reflected by an object. The wireless transceiver is additionally configured to adjust a transmission parameter based on the at least one receive signal. The transmission parameter varies according to a range to the object.

公开(公告)号：US20210156954A1

公开(公告)日：2021-05-27

申请号：US16696550

申请日：2019-11-26

Applicant: Qualcomm Incorporated

Inventor： Roberto Rimini ,  Eyosias Yoseph Imana

IPC: G01S7/03 ,  H04J1/05 ,  H04J13/12 ,  H04Q11/04

Abstract: An apparatus is disclosed for multiplexing radar beat signals. In an example aspect, the apparatus includes an antenna array and a wireless transceiver jointly configured to transmit a radar transmit signal and receive two or more radar receive signals. The two or more radar receive signals represent portions of the radar transmit signal that are reflected by an object. The wireless transceiver comprises a radio-frequency integrated circuit with two or more receive chains and a multiplexing circuit. Each one of the two or more receive chains is configured to generate a radar beat signal by downconverting a respective radar receive signal of the two or more radar receive signals using the radar transmit signal. The multiplexing circuit is coupled to the two or more receive chains and is configured to multiplex the two or more radar beat signals together to generate a composite radar beat signal.

公开(公告)号：US10574276B2

公开(公告)日：2020-02-25

申请号：US14470822

申请日：2014-08-27

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Roberto Rimini ,  Richard Neil Braithwaite ,  Jibing Wang

IPC: H04W52/18 ,  H04W52/00 ,  H04W52/16 ,  H04B1/04 ,  H04K3/00 ,  H04B1/10 ,  H04B1/525

Abstract: A method for wireless communication by a wireless communication device is described. The wireless communication device determines that an aggressor radio in the wireless communication device is causing (or can potentially cause) self-jamming to a victim radio in the wireless communication device. A precoding configuration is selected based on one or more link throughput metrics and one or more self-jamming metrics. The precoding configuration is applied to transmissions of the aggressor radio.

公开(公告)号：US20160071007A1

公开(公告)日：2016-03-10

申请号：US14849536

申请日：2015-09-09

Applicant: QUALCOMM Incorporated

Inventor： Sheng-Yuan TU ,  Farrokh Abrishamkar ,  lnsung Kang ,  Roberto Rimini

IPC: G06N3/08

CPC classification number: G06N3/08 ,  H04B1/123 ,  H04J11/005

Abstract: The various embodiments include methods and apparatuses for canceling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a radial basis function neural network with Hammerstein structure by executing a radial basis function on aggressor signals at a hidden layer of the radial basis function neural network with Hammerstein structure to obtain hidden layer outputs, augmenting aggressor signal(s) by weight factors and, executing a linear combination of the augmented output, at an intermediate layer to produce a combined hidden layer outputs. At an output layer, a linear filter function may be executed on the hidden layer outputs to produce an estimated nonlinear interference used to cancel the nonlinear interference of a victim signal.

Abstract translation: 各种实施例包括用于在多技术无线通信设备的并发通信期间消除非线性干扰的方法和装置。 可以使用具有Hammerstein结构的径向基函数神经网络来估计非线性干扰，通过在具有Hammerstein结构的径向基函数神经网络的隐层处对侵略者信号执行径向基函数以获得隐层输出，增强侵略者信号， 并且在中间层执行增强输出的线性组合以产生组合的隐层输出。 在输出层，可以在隐层输出上执行线性滤波函数，以产生用于消除受害信号的非线性干扰的估计的非线性干扰。

公开(公告)号：US20160065251A1

公开(公告)日：2016-03-03

申请号：US14470822

申请日：2014-08-27

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Roberto Rimini ,  Richard Neil Braithwaite ,  Jibing Wang

IPC: H04B1/04

Abstract: A method for wireless communication by a wireless communication device is described. The wireless communication device determines that an aggressor radio in the wireless communication device is causing (or can potentially cause) self-jamming to a victim radio in the wireless communication device. A precoding configuration is selected based on one or more link throughput metrics and one or more self-jamming metrics. The precoding configuration is applied to transmissions of the aggressor radio.

Abstract translation: 描述了一种由无线通信设备进行无线通信的方法。 无线通信设备确定无线通信设备中的侵略者无线电在无线通信设备中引起（或可能潜在地）对受害者无线电进行自身干扰。 基于一个或多个链路吞吐量度量和一个或多个自干扰度量来选择预编码配置。 预编码配置被应用于侵入者无线电的传输。

公开(公告)号：US09252831B2

公开(公告)日：2016-02-02

申请号：US13782366

申请日：2013-03-01

Applicant: QUALCOMM Incorporated

Inventor： Roberto Rimini ,  Cong T Nguyen ,  Peter D Heidmann ,  Joseph Patrick Burke ,  Vladimir Aparin

IPC: H04B1/56 ,  H04B1/44 ,  H04B1/525

CPC classification number: H04B1/44 ,  H04B1/525

Abstract: Exemplary embodiments are directed to systems, devices, and methods for mitigating effects of transmit signal leakage. A transceiver may include a transmitter and a receiver. The transceiver may further include a multi-tap analog adaptive filter coupled to each of the transmitter and the receiver and configured to generate an estimated transmit leakage signal based on at least a portion of a transmit signal from the transmitter and an error signal from the receiver.

Abstract translation: 示例性实施例涉及用于减轻发射信号泄漏的影响的系统，设备和方法。 收发机可以包括发射机和接收机。 收发器还可以包括耦合到发射机和接收机中的每一个的多抽头模拟自适应滤波器，并被配置为基于来自发射机的发射信号的至少一部分和来自接收机的误差信号来产生估计的发射泄漏信号 。

公开(公告)号：US09197264B1

公开(公告)日：2015-11-24

申请号：US14330558

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Wooseok Nam ,  Roberto Rimini ,  Jibing Wang ,  Yongbin Wei ,  Muhammad Sayed Khairy Abdelghaffar ,  Joseph Patrick Burke

IPC: H04B1/10 ,  H04B7/04

CPC classification number: H04B7/0854 ,  H04B1/1027 ,  H04B7/0691

Abstract: Methods, systems, and devices are described for reducing interference for wireless communication in a wireless device with multiple receive antennas. In aspects for reducing interference, a combined signal may be generated by combining a plurality of received signals from a plurality of respective receive antennas of the wireless device, for example, using one or more different types of combining A common distortion of the plurality of received signals may be estimated based at least in part on the combined signal, and interference reduction may be performed on one or more of the plurality of received signals based at least in part on the estimated common distortion.

Abstract translation: 描述了用于减少具有多个接收天线的无线设备中的无线通信的干扰的方法，系统和设备。 在减少干扰的方面中，可以通过组合来自无线设备的多个相应接收天线的多个接收信号来生成组合信号，例如，使用一种或多种不同类型的组合。 可以至少部分地基于组合信号来估计信号，并且可以至少部分地基于所估计的共同失真来对多个接收信号中的一个或多个执行干扰减少。

公开(公告)号：US20140269857A1

公开(公告)日：2014-09-18

申请号：US13925651

申请日：2013-06-24

Applicant: QUALCOMM Incorporated

Inventor： Roberto Rimini ,  Jibing Wang

IPC: H04L27/00

CPC classification number: H04L27/0008 ,  H04B1/1036 ,  H04W16/14

Abstract: A wireless communication device including two or more aggressor transmitters and a victim receiver that is adversely affected by intermodulation distortion (IMD) components associated with the signals transmitted by the two or more aggressor transmitters. Because the aggressor transmitters and the victim receiver are located on the same device, the transmit waveforms that contribute to the IMD components are known and available. More specifically, digital baseband samples used by the aggressor transmitters to generate the transmit waveforms are available. These digital baseband samples are used to reconstruct the IMD component on the wireless device. This reconstructed (estimated) IMD component is provided to the victim receiver, and is subtracted from a signal received by the victim receiver, thereby effectively removing the IMD component present in this received signal. An adaptive filter using a Volterra series can be used to estimate the IMD component in response to the transmitter digital baseband samples.

Abstract translation: 一种无线通信设备，包括两个或多个攻击者发射机和受到两个或多个攻击者发射机发射的信号相关联的互调失真（IMD）成分的不利影响的受害接收机。 因为侵略者发射机和受害者接收机位于同一设备上，所以有助于IMD组件的发射波形是已知的并且是可用的。 更具体地，侵略者发射机使用的数字基带采样可用于产生发射波形。 这些数字基带样本用于重建无线设备上的IMD组件。 将该重建的（估计的）IMD分量提供给受害者接收机，并从受害者接收机接收到的信号中减去，从而有效地去除该接收信号中存在的IMD分量。 使用Volterra系列的自适应滤波器可用于响应于发射机数字基带样本来估计IMD分量。