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    • 7. 发明申请
    • OPTIMIZATION OF AUTOMATIC GAIN CONTROL FOR NARROW BANDWIDTH OPERATION
    • 自动增益控制优化用于窄带带宽运算
    • US20160308564A1
    • 2016-10-20
    • US14825141
    • 2015-08-12
    • Telefonaktiebolaget L M Ericsson (publ)
    • Peter AlrikssonJoakim Axmon
    • H04B1/12
    • H04B1/123H03G3/3078H03G2201/103H03G2201/702H04W52/52
    • The gain of an amplifier in a receiver operating in a cellular communication system is controlled by determining one or more gain variability metrics, which are then used to produce first and second threshold values. A frequency difference between a current carrier frequency and a target carrier frequency is ascertained and then compared to the threshold values. Target gain setting production is based on comparison results: If the frequency difference is larger than the first threshold, a full automatic gain control algorithm is performed; if the frequency difference is smaller than the first threshold and larger than the second threshold, an optimized automatic gain control algorithm is performed, wherein the optimized automatic gain control algorithm uses a current gain setting as a starting point; and if the frequency difference is smaller than both the first and second thresholds, the current gain setting is used as the target gain setting.
    • 通过确定一个或多个增益变异性度量来控制在蜂窝通信系统中操作的接收机中的放大器的增益,然后将其用于产生第一和第二阈值。 确定当前载波频率和目标载波频率之间的频率差,然后与阈值进行比较。 目标增益设置生产是基于比较结果:如果频差大于第一阈值,则执行全自动增益控制算法; 如果频率差小于第一阈值并且大于第二阈值,则执行优化的自动增益控制算法,其中优化的自动增益控制算法使用电流增益设置作为起点; 并且如果频率差小于第一和第二阈值,则将当前增益设置用作目标增益设置。