Frequency offset estimation method and device, storage medium and terminal

Abstract

The invention discloses a frequency offset estimation method and device, a storage medium and a terminal, and the method comprises the steps: receiving downlink sample data of a target cell, and carrying out the frequency offset correction of the downlink sample data through employing a plurality of preset correction frequency offsets, so as to obtain a plurality of pieces of frequency offset corrected data; for each preset correction frequency offset, calculating a plurality of characteristic parameters by using the frequency offset corrected data corresponding to the preset correction frequency offset, and enabling respective distinguishable frequency offset intervals of the plurality of characteristic parameters to be complementary; calculating a difference value between the preset correction frequency offsets corresponding to the two first characteristic parameters with the maximum values in the plurality of first characteristic parameters; and if the difference value falls into the preset interval, selecting from a plurality of preset correction frequency offsets based on other characteristic parameters except the first characteristic parameter in the plurality of characteristic parameters to obtain a frequency offset estimation result. Through the scheme of the invention, low-cost frequency offset estimation high-performance output in a high-speed mobile environment can be realized.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a frequency offset estimation method and device, a storage medium, and a terminal. Background technique [0002] With the increasingly obvious differentiation of consumer application needs, the implementation of mobile terminals is becoming more and more customized, and the application scenarios of mobile terminals are becoming more and more complex, which in turn leads to cost differentiation and the expansion of application scenarios. The requirements for mobile terminals are getting higher and higher. . Among them, the faster and faster moving speed and the higher and higher transmission carrier frequency have more and more obvious impacts on the performance of the terminal, which is manifested in the frequency deviation introduced by Doppler even exceeds that of many existing systems in the design of the protocol frame structure. Early prediction of move...

AI Technical Summary

Problems solved by technology

However, it is a big challenge for more low-cost terminals, because the realization cost of its implementation scheme is limited

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