Device and method to reduce power amplifier power consumption

    公开(公告)号:US10477476B2

    公开(公告)日:2019-11-12

    申请号:US15280350

    申请日:2016-09-29

    Abstract: A wireless device and method of power consumption reduction are generally described herein. The wireless device may map a plurality of data symbols to sub-carriers for an orthogonal frequency division multiplexing (OFDM) transmission. The wireless device may divide the plurality of data symbols into first and second groups of data symbols. The wireless device may generate a first OFDM signal from the first group of data symbols for amplification by a first power amplifier (PA). The wireless device may generate a second OFDM signal from the second group of data symbols for amplification by a second PA. The data symbols of the first and second groups may be selected to provide a PAPR of the first OFDM signal that is lower than a PAPR of a composite OFDM signal based on the plurality of data symbols.

    A-priori-probability-phase-estimation for digital phase-locked loops
    28.
    发明授权
    A-priori-probability-phase-estimation for digital phase-locked loops 有权
    数字锁相环的先验概率相位估计

    公开(公告)号:US09231602B1

    公开(公告)日:2016-01-05

    申请号:US14490115

    申请日:2014-09-18

    CPC classification number: G04F10/005 H03L7/085 H03L2207/50

    Abstract: A digital phase locked loop operates with a time-to-digital converter and an a-priori-probability-phase-estimation component or estimator component that estimates the un-quantized phase associated with a quantization output of the time-to-digital converter. The time-to-digital converter generates a quantized value as the quantization output from a local oscillator signal of a local oscillator and a reference signal of a reference clock. The estimation component estimates a phase value from the quantized values as a function of a-priori data related to the time-to-digital converter and boundaries of the quantized value.

    Abstract translation: 数字锁相环用时间数字转换器和估计与时间数字转换器的量化输出相关联的未量化相位的先验概率相位估计分量或估计器分量进行操作。 时间 - 数字转换器产生量化值作为本地振荡器的本地振荡器信号和参考时钟的参考信号的量化输出。 估计分量从作为与时间 - 数字转换器相关的先验数据和量化值的边界的函数的量化值估计相位值。

Patent Agency Ranking