A method for determining and compensating for residual phase noise in a 5G NR DL signal includes converting a block of 5G NR DL time domain signal samples into a block of frequency domain samples for one OFDM data symbol and equalizing and combining the frequency domain samples that fall in an outermost sample accumulation region of each quadrant to form a first composite sample for each quadrant, selecting a signal constellation point belonging to one of the four outermost constellation point decision region as a reference constellation point, rotating at least some of the first composite samples so that the first composite samples are in the same quadrant as the reference constellation point, combining the rotated first composite samples to produce a second composite sample, calculating a phase error between the second composite sample and the reference constellation point, applying phase correction corresponding to the phase error to all subcarriers of the OFDM data symbol, and generating output data from the phase-error-corrected OFDM symbol.
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机译:用于确定和补偿5G NR DL信号中残留相位噪声的方法,包括将5G NR DL时域信号样本的块转换为一个OFDM数据符号的频域样本块并均衡并组合掉落的频域样本在每个象限的最外面的样本累积区域中以形成每个象限的第一复合样本,选择属于四个最外部星座点决定区域之一作为参考星座点的信号星座点,旋转至少一些第一复合样本使得第一复合样品在与参考星座点相同的象限中,组合旋转的第一复合样品以产生第二复合样品,计算第二复合样品和参考星座点之间的相位误差,施加对应的相位校正OFDM数据符号和基因的所有子载波的相位误差来自阶段纠错的OFDM符号的额定输出数据。
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