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This paper investigates the impact of beamforming codebook update period on the signal to noise ratio (SNR) performance of low earth orbit (LEO) earth-fixed beams. To combat the SNR degradation due to non-timely beam updates, we propose the combined algorithm of beam angle compensation and dynamic codebook prediction. The proposed algorithm is able to constraint the SNR degradation at the target under a designed threshold.
Zhao et al. (Wed,) studied this question.