Channel phase calibration method, equipment, device and storage medium

Abstract

The invention discloses a channel phase calibration method, equipment, device, and a storage medium, which can reduce the complexity and convergence period of a current phase calibration algorithm. The method comprises the steps that initial phase calibration is carried out in each initial calibration period in a mode of combining intra-group phase calibration and inter-group phase calibration, any two initial calibration periods are spaced by N tracking calibration periods, and N is a positive integer; a phase tracking calibration process is carried out in each tracking calibration period; the phase tracking calibration process in each tracking calibration period is as follows: updating a phase calibration coefficient obtained last time by using a phase tracking factor currently determined through phase tracking to obtain a phase calibration coefficient of the tracking calibration period; the channel phase is calibrated by using the phase calibration coefficient; if the previous period of the tracking calibration period is the initial calibration period, the phase calibration coefficient obtained last time is the phase calibration coefficient determined through initial phase calibration.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a channel phase calibration method, equipment, device and storage medium. Background technique [0002] At present, for the channel phase calibration scheme of large-scale antennas, the channel phase is mainly calibrated by intra-group phase calibration and inter-group phase calibration. Taking the 16-channel phase calibration as an example, the 16 channels are first divided into two groups, and each 8 The channels are a group, and the intra-group phase calibration is performed for each group of 8 channels. After the intra-group phase calibration is performed for both groups of 8 channels, a channel is selected from each group of 8 channels, that is, selected from the two groups of 8 channels. Phase calibration between groups is performed on two channels, and the phase calibration within a group and the phase calibration between groups are regarded as a pha...

AI Technical Summary

Problems solved by technology

[0003] It can be seen from the above that the current channel phase calibration scheme adopts the method of intra-group phase calibration and inter-group phase calibration. Since each cycle uses 8 channels as a group for intra-group phase calibration and inter-group phase calibration, the calibration convergence time is relatively slow. Long; for large-scale antennas, such as 64 channels (antennas), it is necessary to traverse 8 times of phase calibration calculations, and each phase calibration calculation includes the calculation of intra-group phase calibration and inter-group phase calibration, and the computational complexity is relatively high. high

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