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    Method and system for multiband interference mitigation with multipath cancellation
    2.
    发明授权
    Method and system for multiband interference mitigation with multipath cancellation 有权
    多波束消除多波束干扰减轻的方法和系统

    公开(公告)号：US09337877B2

    公开(公告)日：2016-05-10

    申请号：US14263600

    申请日：2014-04-28

    Applicant: MOTOROLA SOLUTIONS, INC.

    Inventor： Mark Rozental ,  Nir Corse ,  Kevin G. Doberstein ,  Ovadia Grossman

    IPC: H03D1/00 ,  H04L27/06 ,  H04B1/10 ,  H04B1/709 ,  H04B1/525 ,  H04B1/12

    CPC classification number: H04B1/1081 ,  H04B1/123 ,  H04B1/525 ,  H04B1/709 ,  H04J11/0063

    Abstract: A method and apparatus is provided for mitigating multiband self-interference using multipath cancellation. A dual-band transceiver receives an incoming radio-frequency signal that includes a multipath self-interference component generated by the transmission of an outgoing radio-frequency signal. The transceiver creates a plurality of reference signals from the outgoing radio-frequency signal by introducing delay values with respect to the outgoing signal. The transceiver adjusts the amplitude and phase of each of the delayed reference signals and combines the resulting signals with the incoming radio-frequency signal to cancel the self-interference component. The delay values may be determined adaptively. The systems and methods described herein are particularly useful for dual-band transceivers capable of communicating simultaneously using Long-Term Evolution (LTE) wideband signals and Public-Safety Narrowband (PSNB) signals.

    Abstract translation: 提供了一种使用多路径消除来减轻多频带自干扰的方法和装置。 双频收发器接收输入射频信号，该信号包括通过传出射频信号产生的多径自干扰分量。 收发器通过引入相对于输出信号的延迟值，从输出射频信号产生多个参考信号。 收发器调整每个延迟参考信号的幅度和相位，并将结果信号与输入的射频信号组合，以消除自干扰分量。 延迟值可以自适应地确定。 本文描述的系统和方法对于能够使用长期演进（LTE）宽带信号和公共安全窄带（PSNB）信号同时通信的双频收发器特别有用。

    Scalable dynamic range analog-to-digital converter system
    3.
    发明授权
    Scalable dynamic range analog-to-digital converter system 有权

    公开(公告)号：US10263636B2

    公开(公告)日：2019-04-16

    申请号：US15616674

    申请日：2017-06-07

    Applicant: MOTOROLA SOLUTIONS, INC.

    Inventor： Charles R. Ruelke ,  Joshua E. Dorevitch ,  Nir Corse

    IPC: H04B1/38 ,  H03M3/00 ,  H03G3/20 ,  H03G3/00 ,  H04W52/02

    Abstract: A scalable dynamic range analog-to-digital converter. In one instance, a method of scaling a dynamic range of an analog-to-digital converter is provided. The method includes operating the analog-to-digital converter at a first dynamic range. The method also includes receiving a radio frequency signal and detecting an on-channel signal level of the radio frequency signal. The method also includes when the on-channel signal level is above an on-channel threshold, operating the analog-to-digital converter at a second dynamic range. The method also includes when the on-channel signal level is below the on-channel threshold, operating the analog-to-digital converter at the first dynamic range.

    Method and apparatus for correlation canceller for interference mitigation with adaptive DC offset cancellation
    4.
    发明授权
    Method and apparatus for correlation canceller for interference mitigation with adaptive DC offset cancellation 有权
    用于具有自适应DC偏移消除的干扰减轻的相关消除器的方法和装置

    公开(公告)号：US09407477B2

    公开(公告)日：2016-08-02

    申请号：US14539490

    申请日：2014-11-12

    Applicant: MOTOROLA SOLUTIONS, INC

    Inventor： Mark Rozental ,  Nir Corse ,  Kevin G. Doberstein ,  Josh E. Dorevitch ,  Baruh Hason ,  Claudine Tordjman

    IPC: H04L25/06 ,  H04B1/10

    CPC classification number: H04L25/061 ,  H04B1/10 ,  H04B1/30 ,  H04B2001/305

    Abstract: A method and apparatus for a method and apparatus for correlation canceller for interference mitigation with adaptive DC offset cancellation for a dual mode communication device includes detecting an active signal transmitting in one mode; configuring integrators associated with the adaptive correlation canceller into gain amplifiers; detecting DC offset utilizing the gain amplifiers and comparators; and configuring the integrators from the gain amplifiers back to integrators with the DC offset applied thereto. The active signal transmitting in one mode can be Long Term Evolution (LTE) which is adjacent to a signal in another mode.

    Abstract translation: 一种用于双模式通信设备的自适应DC偏移消除用于干扰减轻的相关消除器的方法和装置，包括：检测在一种模式下发送的有源信号; 将与自适应相关消除器相关联的积分器配置成增益放大器; 利用增益放大器和比较器检测DC偏移; 以及将来自增益放大器的积分器配置为具有施加到其的DC偏移的积分器。 以一种模式发送的活动信号可以是与另一模式中的信号相邻的长期演进（LTE）。

    Cartesian loop circuits, transmitters, devices, and related methods
    6.
    发明授权
    Cartesian loop circuits, transmitters, devices, and related methods 有权

    公开(公告)号：US10305518B1

    公开(公告)日：2019-05-28

    申请号：US15844081

    申请日：2017-12-15

    Applicant: MOTOROLA SOLUTIONS, INC.

    Inventor： Nir Corse ,  Mark Rozental ,  Yaniv Salem

    IPC: H03F1/32 ,  H03G3/30 ,  H04B1/04

    Abstract: A Cartesian loop circuit includes a reference signal amplifier, a forward path coupled to the reference signal amplifier, a feedback path coupled to the forward path, and a controller. The forward path includes an up-mixer to up mix a forward path signal to a radio frequency signal. The feedback path includes a down-mixer to down mix a feedback signal to a frequency of a baseband reference signal inputted to the forward path. The feedback path provides the down-mixed feedback signal to the forward path. The controller is to perform power control at a low power by controlling a gain of the reference signal amplifier and is to perform power control at a high power by controlling a gain of the down-mixer. At the high power, the controller may perform power control by further controlling the gain of the up-mixer.

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