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    Systems and methods for active interference cancellation to improve coexistence
    2.
    发明授权
    Systems and methods for active interference cancellation to improve coexistence 有权
    用于主动干扰消除的系统和方法以改善共存

    公开(公告)号：US09210535B2

    公开(公告)日：2015-12-08

    申请号：US13645346

    申请日：2012-10-04

    申请人： QUALCOMM Incorporated

    发明人： Alireza Kheirkhahi ,  Shahram Abdollahi-Alibeik ,  Lalitkumar Nathawad ,  Ke Gong ,  Ali Agah

    IPC分类号： H04W4/00 ,  H04B1/525 ,  H04J11/00

    CPC分类号： H04W4/80 ,  H04B1/525 ,  H04J11/0023

    摘要： This disclosure describes techniques for providing active interference cancellation in a wireless communication system having a Bluetooth transmit chain and a WLAN receive chain. A signal sampled from the Bluetooth transmit chain is gain and phase adjusted to offset interference in the WLAN receive chain. A quadrature phase shifter may be used to generate quadrature components of the sampled signal that are selectively combined to achieve a desired phase adjustment. The phase shifter may be stabilized by a variable capacitor. These techniques may be extended to MIMO systems.

    摘要翻译： 本公开描述了在具有蓝牙发射链和WLAN接收链的无线通信系统中提供主动干扰消除的技术。 从蓝牙发射链采样的信号是增益和相位调整以抵消WLAN接收链中的干扰。 正交移相器可以用于产生被选择性地组合以获得期望的相位调整的采样信号的正交分量。 移相器可以由可变电容器稳定。 这些技术可以扩展到MIMO系统。

    ADAPTIVE CONTROL OF RF LOW POWER MODES IN A MULTI-RATE WIRELESS SYSTEM USING MCS VALUE
    5.
    发明申请
    ADAPTIVE CONTROL OF RF LOW POWER MODES IN A MULTI-RATE WIRELESS SYSTEM USING MCS VALUE 有权
    使用MCS值的多速无线系统中RF低功耗模式的自适应控制

    公开(公告)号：US20150346807A1

    公开(公告)日：2015-12-03

    申请号：US14287663

    申请日：2014-05-27

    申请人： QUALCOMM Incorporated

    发明人： Sandip Homchaudhuri ,  Paul Husted ,  MeeLan Lee ,  Srenik Mehta ,  Kai Shi ,  Shahram Abdollahi-Alibeik ,  Zhanfeng Jia ,  Soraya Kasnavi ,  Ning Zhang ,  David Kuochieh Su ,  Subramania Sharma Thandaveswaran ,  Kenneth Gainey ,  Ian David O'Donnell

    IPC分类号： G06F1/32

    CPC分类号： G06F1/3293 ,  G06F1/3278 ,  G06F1/3287 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/24

    摘要： Methods, systems, and devices are described for power conservation in a wireless communications system. In embodiments, power conservation may be achieved by adaptively controlling power modes of a wireless communication device, using a modulation and coding scheme (MCS) value as a factor for guidance. According to one aspect, the device may be in a reception mode. While in a first power mode, the device may receive control information for incoming data that is being transmitted via a transmission frame. The control information may be located in a first portion of the frame with the data following in a second portion of the frame. The control information may include or otherwise indicate an MCS value corresponding to the MCS applied to the incoming data. Based on the MCS value, the device may be adaptively switched to a second power mode for receiving the incoming data.

    摘要翻译： 描述了无线通信系统中的功率节省的方法，系统和设备。 在实施例中，可以通过使用调制和编码方案（MCS）值作为引导因素来自适应地控制无线通信设备的功率模式来实现功率节省。 根据一个方面，设备可以处于接收模式。 在第一功率模式下，设备可以接收正在通过传输帧发送的输入数据的控制信息。 控制信息可以位于帧的第一部分中，数据跟随在帧的第二部分中。 控制信息可以包括或以其他方式指示对应于应用于输入数据的MCS的MCS值。 基于MCS值，设备可以自适应地切换到用于接收传入数据的第二功率模式。

    Multi-chip TX beamforming for per-packet switching without LO phase alignment circuitry
    6.
    发明授权
    Multi-chip TX beamforming for per-packet switching without LO phase alignment circuitry 有权
    用于每个分组交换的多芯片TX波束成形，无需LO相位对准电路

    公开(公告)号：US09531528B1

    公开(公告)日：2016-12-27

    申请号：US14863215

    申请日：2015-09-23

    申请人： QUALCOMM Incorporated

    发明人： Hyunsik Park ,  Shahram Abdollahi-Alibeik

    IPC分类号： H04B1/40 ,  H04L7/04 ,  H04L7/00

    CPC分类号： H04L7/04 ,  H04B1/40 ,  H04B15/06 ,  H04L7/0087 ,  H04L7/0091

    摘要： A wireless communications device that produces phase-synchronized local oscillator (LO) signals without dedicated LO phase alignment circuitry. The wireless communications device includes a first transceiver chain to receive a first timing signal and a second transceiver chain to receive the first timing signal and a second timing signal. The first transceiver chain includes a first frequency divider to convert the first timing signal to a first LO signal. The second transceiver chain includes a second frequency divider to convert the first timing signal to a second LO signal, a third frequency divider to convert the second timing signal to a third LO signal, and a multiplexer to select either the second LO signal or the third LO signal for transmitting wireless signals via the second transceiver chain based at least in part on an operating mode of the wireless communications device.

    摘要翻译： 一种产生相位同步本地振荡器（LO）信号而无专用LO相位对准电路的无线通信装置。 无线通信设备包括第一收发器链，用于接收第一定时信号，第二收发器链接收第一定时信号和第二定时信号。 第一收发器链包括第一分频器，用于将第一定时信号转换为第一LO信号。 第二收发器链包括第二分频器，用于将第一定时信号转换为第二LO信号，第三分频器将第二定时信号转换为第三LO信号，以及多路复用器选择第二LO信号或第三LO信号 LO信号，用于至少部分地基于无线通信设备的操作模式经由第二收发器链发送无线信号。

    TEMPERATURE COMPENSATED RF PEAK DETECTOR
    7.
    发明申请
    TEMPERATURE COMPENSATED RF PEAK DETECTOR 有权
    温度补偿射频探测器

    公开(公告)号：US20150017922A1

    公开(公告)日：2015-01-15

    申请号：US13939076

    申请日：2013-07-10

    申请人： QUALCOMM Incorporated

    发明人： Yashar Rajavi ,  Shahram Abdollahi-Alibeik

    IPC分类号： H04B17/00

    CPC分类号： H04B17/318 ,  G01R21/01 ,  H04B17/104 ,  H04B17/11 ,  H04B17/16 ,  H04B17/345

    摘要： A temperature compensated RF peak detector is disclosed. In an exemplary embodiment, an apparatus includes a first RF peak detector configured to generate a reference signal, a temperature compensated threshold generator configured to generate a temperature compensated detection threshold based on the reference signal, and a comparator configured to generate a peak detection output based on the temperature compensated detection threshold.

    摘要翻译： 公开了一种温度补偿RF峰值检测器。 在示例性实施例中，一种装置包括被配置为产生参考信号的第一RF峰值检测器，被配置为基于参考信号产生温度补偿检测阈值的温度补偿阈值发生器，以及配置成基于参考信号产生基于峰值检测输出的比较器 对温度补偿检测阈值。

    Isolation among I/O ports
    8.
    发明授权
    Isolation among I/O ports 有权

    公开(公告)号：US11146306B2

    公开(公告)日：2021-10-12

    申请号：US16248270

    申请日：2019-01-15

    申请人： QUALCOMM Incorporated

    发明人： Chao Lu ,  William Si ,  Shahram Abdollahi-Alibeik

    IPC分类号： H04B1/525 ,  H04B1/401 ,  H04B1/48

    摘要： Methods and apparatuses to adjust isolation between I/O ports. An apparatus includes a die, a first input or output (I/O) port, a second I/O port, and a third I/O port. The second I/O port is between the first I/O port and the third I/O port. A variable capacitor is electrically connected to the second I/O port and is configurable to adjust isolation between the first I/O port and the third I/O port. A method includes performing, by a die, a first RF function via a first I/O port; tuning a variable capacitor electrically connected to a second I/O port to adjust isolation between the first I/O port and a third I/O port, the second I/O port being between the first I/O port and the third I/O port; and performing, by the die, a second RF function via a third I/O port.

    ISOLATION AMONG I/O PORTS
    10.
    发明申请
    ISOLATION AMONG I/O PORTS 审中-公开

    公开(公告)号：US20200228158A1

    公开(公告)日：2020-07-16

    申请号：US16248270

    申请日：2019-01-15

    申请人： QUALCOMM Incorporated

    发明人： Chao LU ,  William Si ,  Shahram Abdollahi-Alibeik

    IPC分类号： H04B1/525 ,  H04B1/401 ,  H04B1/48

    摘要： Methods and apparatuses to adjust isolation between I/O ports. An apparatus includes a die, a first input or output (I/O) port, a second I/O port, and a third I/O port. The second I/O port is between the first I/O port and the third I/O port. A variable capacitor is electrically connected to the second I/O port and is configurable to adjust isolation between the first I/O port and the third I/O port. A method includes performing, by a die, a first RF function via a first I/O port; tuning a variable capacitor electrically connected to a second I/O port to adjust isolation between the first I/O port and a third I/O port, the second I/O port being between the first I/O port and the third I/O port; and performing, by the die, a second RF function via a third I/O port.