METHOD, SYSTEM AND APPARATUS FOR AUTOMATIC GAIN CONTROL IN DIRECT-CONVERSION RECEIVER
    1.
    发明申请
    METHOD, SYSTEM AND APPARATUS FOR AUTOMATIC GAIN CONTROL IN DIRECT-CONVERSION RECEIVER 有权
    用于直接转换接收机自动增益控制的方法,系统和设备

    公开(公告)号:US20150349822A1

    公开(公告)日:2015-12-03

    申请号:US14727494

    申请日:2015-06-01

    CPC classification number: H04B1/123 H03G1/00 H03G3/30 H03G3/3052 H03G3/3078

    Abstract: A wireless receiver automatic gain control system includes: a coarse amplification subsystem that receives and amplifies a carrier-modulated signal; a demodulator that generates a baseband signal from the amplified carrier-modulated signal; a fine amplification subsystem that amplifies the baseband signal; and a controller connected to the amplification subsystems. The controller: obtains a unified gain value for the amplification subsystems; based on the unified gain value, selects (i) one of a plurality of coarse gain values defining a set of coarse gain steps each spanning a plurality of unified gain steps, and (ii) one of a plurality of fine gain values defining a set of fine gain steps each spanning a single unified gain step; and sets (i) the gain of the coarse amplification subsystem to the selected coarse gain value, and (ii) the gain of the fine amplification subsystem to the selected fine gain value.

    Abstract translation: 无线接收机自动增益控制系统包括:粗放大子系统,其接收并放大载波调制信号; 解调器,其从放大的载波调制信号产生基带信号; 一个放大基带信号的精细放大子系统; 以及连接到放大子系统的控制器。 控制器:获得放大子系统的统一增益值; 基于统一增益值,选择(i)定义一组跨越多个统一增益步长的粗增益步长的多个粗增益值中的一个,以及(ii)定义集合的多个细增益值之一 每个跨越单个统一增益步长的精细增益步骤; 并将(i)粗放大子系统的增益设定为所选粗增益值,以及(ii)精细放大子系统对所选精细增益值的增益。

    METHOD, SYSTEM AND APPARATUS FOR AUTOMATIC GAIN CONTROL IN DIRECT-CONVERSION RECEIVER

    公开(公告)号:US20160336985A1

    公开(公告)日:2016-11-17

    申请号:US15219828

    申请日:2016-07-26

    CPC classification number: H04B1/123 H03G1/00 H03G3/30 H03G3/3052 H03G3/3078

    Abstract: A wireless receiver automatic gain control system includes: a coarse amplification subsystem that receives and amplifies a carrier-modulated signal; a demodulator that generates a baseband signal from the amplified carrier-modulated signal; a fine amplification subsystem that amplifies the baseband signal; and a controller connected to the amplification subsystems. The controller: obtains a unified gain value for the amplification subsystems; based on the unified gain value, selects (i) one of a plurality of coarse gain values defining a set of coarse gain steps each spanning a plurality of unified gain steps, and (ii) one of a plurality of fine gain values defining a set of fine gain steps each spanning a single unified gain step; and sets (i) the gain of the coarse amplification subsystem to the selected coarse gain value, and (ii) the gain of the fine amplification subsystem to the selected fine gain value.

    METHOD AND SYSTEM FOR INTERFERENCE MITIGATION IN WIRELESS COMMUNICATIONS ASSEMBLIES

    公开(公告)号:US20180076904A1

    公开(公告)日:2018-03-15

    申请号:US15705709

    申请日:2017-09-15

    CPC classification number: H04B15/00 H04B1/0028 H04B1/40 H04L25/08

    Abstract: A method in a wireless communications assembly having an antenna, a transceiver and a baseband processor, includes: at the transceiver: receiving, from the antenna, a modulated carrier signal having a carrier frequency and containing payload data; demodulating the carrier signal to extract a baseband signal having a baseband frequency and containing the payload data; generating from the baseband signal, at a converter, a digital baseband signal containing the payload data; at an encoder: receiving the digital baseband signal from the converter; generating an encoded digital baseband signal encoding the payload data for transmission at an operating frequency; the encoded digital baseband signal having at least a threshold proportion of signal level transitions that, when transmitted at the operating frequency, have transition frequencies outside a predefined restricted frequency band; and transmitting the encoded digital baseband signal to the baseband processor via an interface at the operating frequency.

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